Information indication method, communication system, and storage medium

Abstract

The present disclosure provides an information indication method, a device, and a storage medium. The method is executed by a terminal and comprises: sending first information to a network device, the first information being used for indicating whether the terminal can identify information of a first data packet at an access layer, and the first data packet using an application-layer forward error correction (FEC) code. Capability information can be reported by the terminal, such that the network device configures the terminal on the basis of the capability information of the terminal, preventing incorrect configuration of the terminal.

Description

Information indication method, communication system and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to an information indication method, a communication system and a storage medium. BACKGROUND

[0002] Due to dynamic factors, a terminal can not be able to perform the operation of discarding the data packet of the associated application layer forward error correction (FEC) for a specific data stream. The network device cannot perform related configuration or causes incorrect configuration without knowing whether the terminal can perform the related operation.

[0003] SUMMARY

[0004] The present disclosure provides an information indication method, a communication device, a communication system and a storage medium.

[0005] According to a first aspect of the embodiments of the present disclosure, an information indication method is provided, which is performed by a terminal, and the method comprises: sending first information to a network device, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC).

[0006] In the above method, the terminal can report the capability information, so as to facilitate the network device to configure the terminal based on the capability information of the terminal.

[0007] According to a second aspect of the embodiments of the present disclosure, an information indication method is provided, which is performed by a network device, and the method comprises: receiving first information sent by a terminal, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC).

[0008] In the above method, the network device can determine the capability of the terminal through the first information, and configure the terminal according to the capability of the terminal.

[0009] According to a third aspect of the embodiments of the present disclosure, a terminal is provided, which comprises a transceiver module, configured to send first information to a network device, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC).

[0010] According to a fourth aspect of the embodiments of the present disclosure, a network device is provided, which comprises a transceiver module, configured to receive first information sent by a terminal, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC).

[0011] According to a fifth aspect of the embodiments of the present disclosure, a communication device is provided, including: one or more processors; wherein the one or more processors are configured to invoke instructions to cause the communication device to perform the method described in any one of the first aspect of the present disclosure, or to perform the method described in any one of the second aspect of the present disclosure.

[0012] According to a sixth aspect of the embodiments of the present disclosure, a communication system is provided, including a network device and a terminal, wherein the terminal is configured to implement the method of the first aspect, and the network device is configured to implement the method of the second aspect.

[0013] According to a seventh aspect of the embodiments of the present disclosure, a storage medium is provided, which stores instructions, when the instructions are run on a communication device, causing the communication device to perform the method of any one of the first aspect or the second aspect.

[0014] According to an eighth aspect of the embodiments of the present disclosure, a computer program product is provided, including a computer program, which, when executed by a processor, performs the method described in any one of the embodiments of the first aspect or the second aspect of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the present disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0016] FIG. 1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0017] FIG. 2 is a schematic diagram of the interaction of a method of information indication provided by embodiments of the present disclosure;

[0018] FIGS. 3a-3b are schematic diagrams of the flow of some methods of information indication provided by embodiments of the present disclosure;

[0019] FIGS. 4a-4b are schematic diagrams of the flow of some other methods of information indication provided by embodiments of the present disclosure;

[0020] FIG. 5 is a schematic diagram of the interaction of some other methods of information indication provided by embodiments of the present disclosure;

[0021] FIG. 6a is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure;

[0022] FIG. 6b is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure;

[0023] FIG. 7a is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure;

[0024] FIG. 7b is a schematic diagram of the structure of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] The embodiments of the present disclosure provide an information indication method, a communication device, a communication system and a storage medium.

[0026] In a first aspect, the embodiments of the present disclosure provide an information indication method, which is performed by a terminal, and the method comprises: sending first information to a network device, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction code (FEC).

[0027] In the above embodiment, the terminal can report the capability information, so that the network device can configure the terminal based on the capability information of the terminal.

[0028] In combination with some embodiments of the first aspect, in some embodiments, the method further comprises: receiving second information sent by the network device, the second information being used to configure or indicate whether the terminal can send the first information to the network device.

[0029] In the above embodiment, the network device can indicate the terminal to report the first information through the second information, so that the network device can configure the terminal according to the first information.

[0030] In combination with some embodiments of the first aspect, in some embodiments, the method further comprises: sending third information to the network device, the third information being the changed first information.

[0031] In the above embodiment, the changed first information can be reported to the network device when the first information changes, so that the first information can be updated.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the indication granularity of the first information comprises at least one of the following: a terminal granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in all current uplink transmissions; a medium access control (MAC) entity granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first MAC entity; a data radio bearer (DRB) granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first DRB; and a quality of service (QoS) flow granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first QoS flow.

[0033] In the above embodiment, the indication granularity of the first information can be determined, so that the terminal can report the capability information based on the indication granularity of the first information.

[0034] In some embodiments of the first aspect, in some embodiments, at least one of the first information, the second information, and the third information is included in at least one of the following: an RRC message; auxiliary information in the RRC message; a medium access control element (MAC CE); a packet data convergence protocol (PDCP) control PDU; and a radio link control (RLC) control PDU.

[0035] In the above embodiments, the first information can be determined to be carried.

[0036] In a second aspect, the embodiments of the present disclosure provide an information indication method, the method being performed by a network device, and the method comprising: receiving first information sent by a terminal, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC) code.

[0037] In the above embodiments, the network device can determine the capability of the terminal through the first information, and configure the terminal according to the terminal capability.

[0038] In some embodiments of the second aspect, in some embodiments, the method further comprises: sending second information to the terminal, the second information being used to configure or indicate whether the terminal can send the first information to the network device.

[0039] In the above embodiments, the network device can instruct the terminal to report the first information through the second information, so as to facilitate the network device to configure the terminal according to the first information.

[0040] In some embodiments of the second aspect, in some embodiments, the method further comprises: receiving third information sent by the terminal, the third information being changed first information.

[0041] In the above embodiments, the network device can receive the changed first information when the first information changes, so as to update the first information.

[0042] In some embodiments of the second aspect, in some embodiments, an indication granularity of the first information comprises at least one of the following: a terminal granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in all current uplink transmissions; a medium access control (MAC) entity granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first MAC entity; a data radio bearer (DRB) granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first DRB; and a quality of service (QoS) flow granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first QoS flow.

[0043] In the above embodiments, the indication granularity of the first information can be determined, so as to facilitate the network device to determine the capability information of the terminal based on the indication granularity of the first information.

[0044] In combination with some embodiments of the second aspect, in some embodiments, at least one of the first information, the second information, and the third information is included in at least one of the following messages: an RRC message; auxiliary information in the RRC message; a medium access control element (MAC CE); a packet data convergence protocol (PDCP) control PDU; and a radio link control (RLC) control PDU.

[0045] In the above embodiments, the first information can be determined to be carried.

[0046] In combination with some embodiments of the second aspect, in some embodiments, the network device is a source network device, and the method further includes: sending, to a target network device, the first information when performing cell switching.

[0047] In the above embodiments, the source network device can send the first information to the target network device when performing cell switching, so as to implement sending the capability information of the terminal to the target network device and facilitating the target network device to configure the terminal after the switching.

[0048] In combination with some embodiments of the second aspect, in some embodiments, the network device is a target network device, and the method further includes: receiving the first information sent by a source network device when performing cell switching.

[0049] In the above embodiments, the target network device can receive the first information when performing cell switching, so as to facilitate determining the capability of the terminal and configuring the terminal.

[0050] In combination with some embodiments of the second aspect, in some embodiments, the network device is a central unit (CU), and the method further includes: sending the first information to a distributed unit (DU); or the network device is a distributed unit (DU), and the method further includes: sending the first information to a central unit (CU).

[0051] In the above embodiments, the first information can be sent to the distributed unit (DU) or the central unit (CU), so as to facilitate the distributed unit (DU) or the central unit (CU) to configure the terminal.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the network device is a distributed unit (DU), and the method further includes: receiving the first information sent by a central unit (CU); or the network device is a central unit (CU), and the method further includes: receiving the first information sent by a distributed unit (DU).

[0053] In the above embodiments, the distributed unit (DU) or the central unit (CU) can receive the first information, so as to facilitate configuring the terminal.

[0054] In a third aspect, an embodiment of the present disclosure provides a terminal, comprising a transceiver module, configured to send first information to a network device, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction code (FEC).

[0055] In a fourth aspect, an embodiment of the present disclosure provides a network device, comprising a transceiver module, configured to receive first information sent by a terminal, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction code (FEC).

[0056] In a fifth aspect, an embodiment of the present disclosure provides a communication device, comprising: one or more processors; wherein the one or more processors are configured to invoke instructions to cause the communication device to perform the method of any one of the first aspect, or the method of any one of the second aspect.

[0057] In a sixth aspect, an embodiment of the present disclosure provides a communication system, comprising: a terminal, a network device; wherein the terminal is configured to perform the method described in the first aspect and the optional implementation of the first aspect, and the network device is configured to perform the method described in the second aspect and the optional implementation of the second aspect.

[0058] In a seventh aspect, an embodiment of the present disclosure provides a storage medium, the computer storage medium storing computer executable instructions; the computer executable instructions are executed by a processor to perform the method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0059] In an eighth aspect, an embodiment of the present disclosure provides a computer program product, comprising a computer program, the computer program being executed by a processor to perform the method described in the first aspect of the present disclosure, or the method described in the second aspect of the present disclosure.

[0060] It can be understood that the terminal, the network device, the communication device, the communication system, and the storage medium are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here.

[0061] The embodiments of the present disclosure propose a communication method and a communication device, a communication system, and a storage medium. In some embodiments, the terms of the communication method and the information processing method can be replaced with each other, the terms of the terminal and the network device can be replaced with each other, and the terms of the information processing system and the communication system can be replaced with each other.

[0062] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing part of the steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, part or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with optional implementation of other embodiments arbitrarily.

[0063] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0064] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the present disclosure.

[0065] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", and can also represent "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0066] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0067] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0068] The description manner such as "at least one of A, B, C, …", "A and / or B and / or C, …" and the like in the embodiments of the present disclosure includes any one of A, B, C, … existing alone, and also includes any combination of any multiple of A, B, C, …, each of which can exist alone; for example, "at least one of A, B, C" includes a case of A alone, a case of B alone, a case of C alone, a case of combination of A and B, a case of combination of A and C, a case of combination of B and C, and a case of combination of A and B and C; for example, A and / or B includes a case of A alone, a case of B alone, and a case of combination of A and B.

[0069] In some embodiments, the description manner such as "A in a case, B in another case", "in response to a case A, in response to another case B" and the like can include the following technical solutions according to the case: A is executed regardless of B, that is, A in some embodiments; B is executed regardless of A, that is, B in some embodiments; A and B are selectively executed, that is, from A and B, execution is selected in some embodiments; A and B are both executed, that is, A and B in some embodiments. When there are more branches of A, B, C and the like, it is similar to the above.

[0070] The prefix words "first", "second" and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0071] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0072] In some embodiments, the terms "in response to," "in response to determining," "in the event that," "when," "if," and the like can be replaced with each other.

[0073] 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," "above," and the like can be replaced with each other, and 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," "below," and the like can be replaced with each other.

[0074] In some embodiments, an apparatus and the like can be interpreted as an entity, and can also be interpreted as virtual, and the name thereof is not limited to the name described in the embodiments, and the terms "apparatus," "equipment," "device," "circuitry," "network element," "node," "function," "unit," "section," "system," "network," "chip," "chip system," "entity," "subject," and the like can be replaced with each other.

[0075] 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,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be used interchangeably.

[0076] 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," "client," and so on can be replaced with each other.

[0077] In some embodiments, an access network device, a core network device, or a network device can be replaced with a terminal. For example, for a structure in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between a plurality of terminals (for example, also referred to as device-to-device (D2D), vehicle-to-everything (V2X), and so on), embodiments of the present disclosure can also be applied. In this case, a structure in which a terminal has all or part of the functions of an access network device can also be provided. Furthermore, the language of "uplink," "downlink," and so on can also be replaced with language corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, and so on can be replaced with a side channel, and an uplink, a downlink, and so on can be replaced with a side link.

[0078] In some embodiments, a terminal can be replaced with an access network device, a core network device, or a network device. In this case, a structure in which an access network device, a core network device, or a network device has all or part of the functions of a terminal can also be provided.

[0079] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0080] In some embodiments, terms such as "uplink", "uplink", "physical uplink", and the like can be replaced with each other, terms such as "downlink", "downlink", "physical downlink" and the like can be replaced with each other, terms such as "side", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct connection link", "direct connection", "direct connection link communication" and the like can be replaced with each other.

[0081] In some embodiments, terms such as "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI", and the like can be replaced with each other.

[0082] In some embodiments, terms such as "physical downlink shared channel (PDSCH)", "DL data", and the like can be replaced with each other, and terms such as "physical uplink shared channel (PUSCH)", "UL data", and the like can be replaced with each other.

[0083] In some embodiments, terms such as "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like can be replaced with each other.

[0084] In some embodiments, the terms "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", "pilot signal" and the like can be replaced with each other.

[0085] In some embodiments, the terms "moment", "time point", "time", "time position" and the like can be replaced with each other, and the terms "time length", "time period", "time window", "window", "time" and the like can be replaced with each other.

[0086] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" and the like can be replaced with each other, which can be interpreted as receiving from other subjects, obtaining from protocols, obtaining by oneself, autonomously implementing and the like.

[0087] In some embodiments, the terms "send", "transmit", "report", "issue", "transmit", "bidirectional transmission", "send and / or receive" and the like can be replaced with each other.

[0088] In some embodiments, "predetermined" and "preset" can be interpreted as being previously specified in protocols and the like, or can be interpreted as being previously set by devices and the like.

[0089] In some embodiments, determining can be interpreted as judging, deciding, judging, calculating, computing, processing, deriving, investigating, searching, looking up, retrieving, inquiring, ascertaining, receiving, transmitting, inputting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, "assuming", "expecting", "considering", broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but is not limited thereto.

[0090] In some embodiments, determining or judging can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.

[0091] In some embodiments, "network" can be interpreted as devices (for example, access network devices, core network devices, etc.) contained in the network.

[0092] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or can be interpreted as, after receiving data, etc., not performing subsequent processing on the data, etc.; "not expecting to send" can be interpreted as not sending, or can be interpreted as sending but not expecting the receiving party to respond to the content of the sending.

[0093] In some embodiments, obtaining data, information, etc. can comply with the laws and regulations of the country where the location is located.

[0094] In some embodiments, data, information, etc. can be acquired after obtaining user consent. To solve the above problems, the present disclosure proposes an information indication method, a communication device, a communication system, and a storage medium.

[0095] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1, the communication system 100 can include a terminal 101 and a network device 102.

[0096] In some embodiments, optionally, the communication system can further include a terminal, a source network device, and a target network device. When performing cell switching, the source network device can send first information to the target network device to implement switching of access of the terminal from the source network device to the target network device, and the first information is used to indicate whether the terminal can identify information of a first data packet at an access layer. The terminal can report the capability to the target network device after the cell switching.

[0097] In some embodiments, optionally, the communication system can include a terminal, a distributed unit (DU), and a centralized unit (CU). The centralized unit (CU) can send first information to the distributed unit (DU) or receive the first information sent by the distributed unit (DU). The distributed unit (DU) can send the first information to the centralized unit (CU) or receive the first information sent by the centralized unit (CU). The access network element can determine the capability of the terminal.

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

[0099] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the access network device can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6th generation mobile communication system (6th generation mobile networks or 6th generation wireless systems, 6G), an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0100] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized through software or programs.

[0101] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit (control unit), and the CU-DU structure can split the protocol layers of the access network device, and the functions of part of the protocol layers are controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU, but the present disclosure is not limited thereto.

[0102] In some embodiments, the core network device can be one device including one or more network elements, or can be multiple devices or device groups each including all or part of the one or more network elements. The network element can be virtual or physical. The core network includes, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0103] In some embodiments, the one or more network elements described above can include, for example, an AMF, a UPF, an MME, and the like, and can also include other network elements such as a policy control function (PCF), an application function (AF), a network application function (NAF), an authentication and key management for applications anchor function (AAnF), a bootstrapping server function (BSF), a session management function (SMF), and the like.

[0104] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, as the system architecture evolves and new business scenarios appear, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0105] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1 or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than those in FIG. 1. The number and form of each subject is arbitrary, and the connection relationship between the subjects is exemplary. The subjects can not be connected or can be connected, and the connection can be in any manner, can be direct connection or indirect connection, and can be wired connection or wireless connection.

[0106] Embodiments of the present disclosure 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0107] An erasure code converts a message containing k symbols into a message containing n (n>k) symbols so that the original message can be recovered from a subset of the n received symbols. The recovery algorithm knows which of the n symbols have been received correctly. An optimal erasure code can recover the original message from any k correctly received symbols. Optimal erasure codes are Maximum Distance Separable Codes (MDS), such as Reed-Solomon codes (RS).

[0108] In application layer FEC, erasure codes can be used to improve the reliability of the system. One way is to split the original data into k equal length packets and encode them into n (n>k) packets using erasure codes. The n packets are sent through different channels (e.g. through different carriers in carrier aggregation or through different nodes in dual connectivity), which can fully exploit the diversity effect to improve reliability. At the receiving side, error detection mechanisms (e.g. through CRC) are used to find out which packets have been received correctly, and then the correctly received packets are used to recover the original data. In this example, (5,3) encoding is used, i.e. k=3, n=5. The original data is segmented into 3 packets, the 1st packet has symbols s1, s2,..., s m , the 2nd packet has symbols s m+1 , s m+2 ,..., s 2m , and the 3rd packet has symbols s 2m+1 , s 2m+2 ,..., s 3m . They are encoded in groups of three symbols each. In this example, the (5,3) encoding used is assumed to be a systematic code. Then two parity symbols need to be generated for each group of three symbols. For example, s1, s m+1 , s 2m+1 are encoded to generate parity symbols w1, w m+1 , s2, s m+2 , s 2m+2 are encoded to generate parity symbols w2, w m+2 , and so on. Thus two parity packets are generated, containing symbols w1, w2,..., w m and symbols w m+1 , w m+2 ,..., w 2m , respectively. Finally, a packet header is added to each packet and transmitted. In this example, a symbol can be one bit or several bits, e.g. one byte. If a symbol is one byte, then the corresponding erasure code works in the finite field GF(28). If the number of symbols in the original data is not an integer multiple of k, then a suitable number of padding symbols (e.g., the element 0 in the finite field corresponding to the encoding) can be added.

[0109] The above encoding method splits the original data into k equal-length data packets and encodes them into n data packets using an erasure code. Another way is to encode the k original data packets into n data packets using an erasure code. The two methods are similar in terms of the use of erasure codes.

[0110] The Quality of Service (QoS) model of 5G is based on QoS flows. In the Non-Access Stratum (NAS), a QoS flow is the smallest granularity to differentiate QoS in a PDU Session. A QoS flow is identified by a QoS Flow ID (QFI) in the header. In the Access Stratum (AS), a Data Radio Bearer (DRB) defines the data packet handling in the radio interface (Uu).

[0111] 3GPP introduced several enhancements in the XR WI in Rel-18. One of the enhancements is for the UE to report uplink assistance information for QoS flows through the Radio Resource Control (RRC) message UEAssistanceInformation, where the uplink assistance information can include: jitter range, burst arrival time, and periodicity. These assistance information can help gNB scheduling, e.g., setting up Configured Grant and dynamic scheduling.

[0112] The inter-base station (gNB) handover procedure is as follows:

[0113] 1. The source gNB initiates the handover and sends the handover request information HANDOVER REQUEST through the Xn interface.

[0114] 2. The target gNB does admission control and provides new RRC configuration in the handover request acknowledgement information HANDOVER REQUEST ACKNOWLEDGE.

[0115] 3. The source gNB forwards the RRCReconfiguration message in the HANDOVER REQUEST ACKNOWLEDGE message to the UE, thereby providing the RRC configuration.

[0116] 4. The UE moves to the target gNB and replies with RRCReconfigurationComplete.

[0117] Wherein, the base station core unit (gNB-Central Unit, gNB-CU) is a logical node, which carries the functions of RRC, Service Data Adaptation Protocol (SDAP) and Packet Data Convergence Protocol (PDCP) in gNB. The base station distributed unit (gNB-Distributed Unit, gNB-DU) is a logical node, which carries the functions of Radio Link Control (RLC), Medium Access Control (MAC) and PHY protocol in gNB. The interface between gNB-CU and gNB-DU is F1.

[0118] When application layer FEC is used in uplink data transmission, the terminal can decide whether to discard the associated application layer FEC data packets according to the reception status of the application layer FEC data packets and the related threshold, i.e. only part of the data packets need to be sent. The behavior of the terminal is usually configured by the access network element (such as base station). Whether the terminal can discard the associated application layer FEC data packets depends on whether the terminal can judge that the SDU and PDU in the user plane protocol stack are associated at the application layer FEC level. Even if the terminal supports the operation of application layer FEC in terms of capability, due to various dynamic factors (such as cross-layer operation, and specific data processing procedures, such as encryption of data packets or packet headers), the terminal may not be able to perform the operation of discarding the associated application layer FEC data packets for a specific data flow (such as QoS flow, DRB). The access network element cannot make related configurations without knowing whether the terminal can perform the related operation.

[0119] To solve the above problems, the present disclosure proposes an information indication method, which proposes a method for the terminal to indicate whether it can identify the data packet information using application layer FEC at the access layer. The network device can make related configurations according to the indication of the terminal, such as configuring the terminal to perform the operation of discarding the associated application layer FEC data packets. The present application can effectively avoid the incorrect configuration of the network device to the terminal. The specific content of the method is as follows.

[0120] FIG. 2 is an interaction schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG. 2, the embodiment of the present disclosure relates to an information indication method, which is used for a communication system 100 that can include a terminal 101 and a network device 102, and the above method includes the following steps:

[0121] In step 2101, the network device sends second information to the terminal.

[0122] In some embodiments, the second information is used to configure or indicate whether the terminal can send the first information to the network device.

[0123] In some embodiments, the second information can be uplink transmission report indication information (IE UL-TrafficInfoReportingConfig-r18).

[0124] In other words, the network device can indicate the terminal to report the first information through the second information, and the first information is used to indicate whether the terminal can identify the information of the first data packet at the access layer, and the first data packet uses an application layer forward error correction code (FEC). That is, the network device can indicate whether the terminal has the capability to identify the information of the first data packet at the access layer, and the network device can configure the terminal according to the capability information reported by the terminal.

[0125] In some embodiments, at least one of the first information, the second information, and the third information is included in at least one of the following messages: an RRC message; auxiliary information in the RRC message; a medium access control (MAC) control element (CE); a packet data convergence protocol (PDCP) control PDU; and a radio link control (RLC) control PDU.

[0126] In other words, receiving the second information sent by the network device includes the following steps:

[0127] The first message sent by the network device is received, and the second information is included in the first message, and the first message includes a radio resource control (RRC) message. Alternatively, the first message can include at least one of the following messages: an RRC message; auxiliary information in the RRC message; a medium access control (MAC) control element (CE); a packet data convergence protocol (PDCP) control PDU; and a radio link control (RLC) control PDU.

[0128] In other words, the second information can take the first message as a carrier, and the network device can carry the second information in the first message, and send the second information to the terminal by sending the first message. That is, the network device can carry the indication of the first information reported by the terminal in a radio resource control (RRC) message and send it.

[0129] In some embodiments, the step is an optional step, when the terminal can send the first information to the network device after the first information changes, and the network device does not need to instruct the terminal, and the step is optional.

[0130] At step 2102, the terminal sends the first information to the network device.

[0131] In some embodiments, the first information is used to indicate whether the terminal can identify the information of the first data packet at the access layer, and the first data packet uses an application layer forward error correction code (FEC).

[0132] In some embodiments, the network device can configure the terminal according to the first information. For example, due to the influence of dynamic factors (for example, involving cross-layer operations, and specific data processing processes, such as data packet or packet header encryption, etc.), the terminal cannot perform the operation of discarding the data packet associated with the application layer FEC for a specific data flow (for example, QoS flow, DRB, etc.). At this time, when the network device is not clear whether the terminal can identify the information of the first data packet at the access layer, the network device cannot configure the terminal, or may cause incorrect configuration. For example, after the network device receives the first information, when it is determined that the terminal supports identifying the information of the first data packet at the access layer, the network device can configure the terminal to perform the operation of discarding the data packet associated with the application layer FEC.

[0133] In some embodiments, the first information and / or the second information are included in at least one of the following messages: an RRC message; auxiliary information in the RRC message; a medium access control element (MAC CE); a packet data convergence protocol (PDCP) control PDU; and a radio link control (RLC) control PDU.

[0134] In other words, the terminal sending the first information to the network device includes: sending a second message to the network device, and the first information is included in the second message.

[0135] In some embodiments, the second message includes at least one of the following: an RRC message; auxiliary information in the RRC message; a medium access control element (MAC CE); a packet data convergence protocol (PDCP) control PDU; and a radio link control (RLC) control PDU.

[0136] In other words, the first information can use the second message as a carrier, and the terminal can carry the first information in the second message, and send the first information to the network device by sending the second message, to report whether the terminal has the capability of identifying the information of the first data packet at the access layer.

[0137] In some embodiments, optionally, when the second message is an RRC message, the first information can be transmitted in a UE Assistance Information (UEAssistanceInformation) message in the RRC message. For example, an FEC indication field (fec-Identification-r19) can be introduced in the uplink transmission information (IE QOS-FlowUL-TrafficInfo-r18) to indicate the first information.

[0138] In some embodiments, the value of the indication field introduced above can be used to indicate whether the terminal has the capability to identify the information of the first data packet at the access layer. For example, when the value of the indication field is true, it can indicate that the terminal supports identifying the information of the first data packet at the access layer. Otherwise, when the value is false, it can indicate that the terminal does not support identifying the information of the first data packet at the access layer. Alternatively, the indication field can also be used to indicate whether the terminal supports identifying the information of the first data packet at the access layer by using other values, which is not limited in the present disclosure.

[0139] In some embodiments, optionally, the network device can default that the terminal does not support identifying the information of the first data packet at the access layer before receiving the first information.

[0140] In some embodiments, the indication granularity of the first information includes at least one of the following:

[0141] terminal granularity, the first information is used to indicate whether the terminal can identify the information of the first data packet in all current uplink transmissions;

[0142] medium access control (MAC) entity granularity, the first information is used to indicate whether the terminal can identify the information of the first data packet in uplink transmissions of a first MAC entity;

[0143] data radio bearer (DRB) granularity, the first information is used to indicate whether the terminal can identify the information of the first data packet in uplink transmissions of a first DRB;

[0144] quality of service (QoS) flow granularity, the first information is used to indicate whether the terminal can identify the information of the first data packet in uplink transmissions of a first QoS flow.

[0145] In some embodiments, the method further includes receiving third information sent by the terminal, the third information being the changed first information.

[0146] In other words, the terminal can send the changed first information to the network device in the case that the first information changes. In other words, the terminal can send the changed first information to the network device after the first information changes, and the network device can update the first information stored in the network device according to the received first information, thereby updating the terminal state.

[0147] In some embodiments, when the network device is a source network device, the method further includes: sending the first information to a target network device when performing cell switching.

[0148] In some embodiments, when the network device is a target network device, the method further includes: receiving the first information sent by a source network device when performing cell switching.

[0149] In other words, the terminal can perform cell switching between network devices. When the terminal needs to perform cell switching, the source network device can send the first information of the terminal to the target network device, the target network device can receive the first information sent by the source network device, and determine whether the terminal can identify the information of the first data packet at the access layer according to the first information, and configure the terminal based on the capability of the terminal, thereby facilitating the cell switching of the terminal. After the terminal switches to the target network device, the target network device can receive the first information sent by the terminal.

[0150] In some embodiments, when the network device is a centralized unit (CU), the method further includes: sending the first information to a distributed unit (DU); or when the network device is a distributed unit (DU), the method further includes: sending the first information to a centralized unit (CU).

[0151] In some embodiments, when the network device is a distributed unit (DU), the method further includes: receiving the first information sent by the centralized unit (CU), or when the network device is a centralized unit (CU), the method further includes: receiving the first information sent by the distributed unit (DU).

[0152] In other words, the distributed unit (DU) and the centralized unit (CU) can share the first information. Since the distributed unit (DU) and the centralized unit (CU) can both provide services for the terminal, the distributed unit (DU) and the centralized unit (CU) can determine the terminal capability by sharing the first information, thereby facilitating the distributed unit (DU) and the centralized unit (CU) to provide services for the terminal based on the first information.

[0153] The method related to the embodiments of the present disclosure can include at least one of step 2101 to step 2102. For example, step 2101+2102 can be implemented as an independent embodiment, and step 2102 can be implemented as an independent embodiment, but is not limited thereto.

[0154] FIG. 3a is a flow diagram illustrating a method for information indication according to an embodiment of the present disclosure. As shown in FIG. 3, the embodiment of the present disclosure relates to a method for information indication, for a terminal, the method comprising:

[0155] At step 3101, the second information is received.

[0156] The optional implementation of step 3101 can refer to the optional implementation of step 2101 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0157] In some embodiments, the terminal receives the second information sent by the network device, but is not limited thereto, and can also receive the second information sent by other subjects.

[0158] In some embodiments, the terminal obtains the second information specified by a protocol.

[0159] In some embodiments, the terminal obtains the second information from upper layer(s).

[0160] In some embodiments, the terminal processes to obtain the second information.

[0161] At step 3102, the first information is sent.

[0162] The optional implementation of step 3102 can refer to the optional implementation of step 2102 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0163] In some embodiments, the network device can receive the first information.

[0164] In some embodiments, the terminal can send the first information to the network device, but is not limited thereto, and the terminal can also send the first information to other subjects.

[0165] FIG. 3b is a flow diagram illustrating a method for information indication according to an embodiment of the present disclosure. As shown in FIG. 3b, the embodiment of the present disclosure relates to a method for information indication, for a terminal, the method comprising:

[0166] At step 3201, the first information is sent.

[0167] The optional implementation of step 3201 can refer to the optional implementation of step 2102 in FIG. 2, the optional implementation of step 3102 in FIG. 3a, and other associated parts in the embodiments related to FIG. 2 and FIG. 3a, which will not be repeated here.

[0168] FIG. 4a is a flow diagram illustrating a method for information indication according to an embodiment of the present disclosure. As shown in FIG. 4a, the embodiment of the present disclosure relates to a method for information indication, for a network device, the method comprising:

[0169] Step 4101, sending second information.

[0170] The optional implementation of step 4101 can refer to the optional implementation of step 2101 in FIG. 2, step 3101 in FIG. 3a, and other associated parts in the embodiments related to FIG. 2 and FIG. 3a, which are not described here again.

[0171] In some embodiments, the terminal can receive the second information.

[0172] In some embodiments, the network device can send the second information to the terminal, but is not limited to this, and the network device can also send the second information to other subjects.

[0173] Step 4102, receiving first information.

[0174] The optional implementation of step 4102 can refer to the optional implementation of step 2102 in FIG. 2, step 3102 in FIG. 3a, and step 3201 in FIG. 3b, and other associated parts in the embodiments related to FIG. 2, FIG. 3a and FIG. 3b, which are not described here again.

[0175] In some embodiments, the network device receives the first information sent by the terminal, but is not limited to this, and can also receive the first information sent by other subjects.

[0176] In some embodiments, the network device obtains the first information specified by the protocol.

[0177] In some embodiments, the network device processes to obtain the first information.

[0178] FIG. 4b is a flow diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG. 4b, the embodiment of the present disclosure relates to an information indication method, which is used for a network device, and the above method comprises the following steps:

[0179] Step 4201, receiving first information.

[0180] The optional implementation of step 4201 can refer to the optional implementation of step 2102 in FIG. 2, step 3102 in FIG. 3a, step 3201 in FIG. 3b, and step 4102 in FIG. 4a, and other associated parts in the embodiments related to FIG. 2, FIG. 3a, FIG. 3b and FIG. 4a, which are not described here again.

[0181] FIG. 5 is a flow diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG. 5, the embodiment of the present disclosure relates to an information indication method, which is used for a communication system comprising a network device and a terminal, and the above method comprises the following steps:

[0182] Step 5101, the terminal sends first information to the network device.

[0183] The optional implementation of step 5101 can refer to the optional implementation of step 2102 in FIG. 2, step 3102 in FIG. 3a, step 3201 in FIG. 3b, step 4102 in FIG. 4a, step 4201 in FIG. 4b, and other associated parts in the embodiments related to FIG. 2, FIG. 3a, FIG. 3b, FIG. 4a, and FIG. 4b, which are not described here again.

[0184] In step 5102, the terminal determines whether to discard the second data packet.

[0185] The optional implementation of step 5102 can refer to the optional implementation of step 2107 in FIG. 2, step 3107 in FIG. 3a, step 3204 in FIG. 3b, step 3302 in FIG. 3c, and other associated parts in the embodiments related to FIG. 2, FIG. 3a, FIG. 3b, and FIG. 3c, which are not described here again.

[0186] The following is an exemplary introduction to the above method.

[0187] The method shown in the embodiments of the present disclosure relates to a method for indicating application layer FEC information, and the complete content of the method is as follows.

[0188] 1. A method for indicating application layer FEC information, the method comprising:

[0189] The terminal sends first information to the network device, and the first information indicates whether the terminal can identify data packet information using the application layer FEC in the access layer.

[0190] Embodiment 1: Data packets are generated in the application layer (Application Layer) using FEC, and each data packet passes through a protocol stack. In the protocol stack, SDAP / PDCP / RLC / MAC / PHY is the protocol stack of the user plane in the access layer of 5G / NR. The terminal can determine whether it can identify data packet information using the application layer FEC in the access layer according to its internal implementation and specific data processing process (such as encryption of data packets or packet headers).

[0191] In some embodiments, the network device can send second information to the terminal to configure whether the terminal can send the first information to the network device.

[0192] In some embodiments, the second information is transmitted in an RRC message.

[0193] In some embodiments, when the first information changes, the terminal can send the first information to the network device to notify the changed content.

[0194] In some embodiments, when performing handover, the source base station sends the first information to the target base station.

[0195] In some embodiments, the gNB-CU sends the first information to the gNB-DU, or the gNB-DU sends the first information to the gNB-CU.

[0196] In some embodiments, the granularity of the first information is one of the following:

[0197] Terminal, i.e., indicating whether the terminal can recognize the packet information using application layer FEC in the current uplink transmission;

[0198] MAC entity, i.e., indicating whether the terminal can recognize the packet information using application layer FEC in the uplink transmission of a certain MAC entity;

[0199] Data radio bearer (DRB), i.e., indicating whether the terminal can recognize the packet information using application layer FEC in the uplink transmission of a certain DRB;

[0200] QoS flow, i.e., indicating whether the terminal can recognize the packet information using application layer FEC in the uplink transmission of a certain QoS flow.

[0201] In some embodiments, the first information is transmitted in an RRC message, for example, the first information is transmitted in the UEAssistanceInformation message in the RRC message. When the first information is transmitted in the UEAssistanceInformation message, the method of transmitting the first information is as in Embodiment 2.

[0202] Embodiment 2: The first information is transmitted in the UEAssistanceInformation message. A domain fec-Identification-r19 is introduced in the IE QOS-FlowUL-TrafficInfo-r18 to indicate the first information, indicating the granularity of the QoS flow. When the value is true, the terminal can recognize the packet information using application layer FEC in the uplink transmission of the corresponding QoS flow; otherwise, the terminal cannot recognize. Before the network device receives this information, the network device considers that the terminal cannot recognize.

[0203] In some embodiments, the burst arrival time can indicate the expected arrival time of the first packet of the data burst of the relevant QoS flow. If the UE provides the burst arrival time and the time jitter range, the burst arrival time is used as the indicated time jitter range.

[0204] If the burst arrival time is indicated as a standard time, the time indicated from the origin in units of 10 ns is ref days*86400*1000*100000+ref seconds*1000*100000+ref milliseconds*100000+refTenNanoSeconds. The refDays field specifies the number of consecutive days (days start from 0) from the Gregorian date 6 January 1980 00:00:00 (start of GPS time).

[0205] If the burst arrival time is indicated as referenceSFN-AndSlot, it refers to the UL timing of the latest SFN and slot of the PCell with the indicated number.

[0206] In some embodiments, the FEC-set identification can be used to indicate whether the UE is able to identify the application layer FEC of the QoS flow. If set to true, the UE is able to identify the application layer FEC of the relevant QoS flow, otherwise, the UE is not able to do so. Prior to receiving this indication, the network assumes that the value is set to false.

[0207] In some embodiments, the time jitter range can be used to indicate the maximum deviation of the arrival time of the first packet of the data burst compared to the time indicated with the burst arrival time and periodicity of the data burst. The lower bound indicates the negative deviation and the upper bound indicates the positive deviation. This field shall be reported only together with the burst arrival time or after the burst arrival time has been reported. The value ms0 corresponds to 0 ms, the value 0.5 corresponds to 0.5 ms, the value ms1 corresponds to 1 ms, and so on. The value beyondMs7 indicates that the jitter bound is higher than 7 ms. The value 0ms indicates that there is no deviation of the data burst arrival time from the indicated burst arrival time.

[0208] Specifically, the flow of the terminal device sending the first information is as follows. Here, the IE UL-TrafficInfoReportingConfig-r18 defined in Rel-18 is set as the second information to configure the terminal. The terminal sends the first information after receiving the second information configuration, or sends the first information (field fec-Identification-r19) after the content of the first information changes relative to the last transmission.

[0209] In some embodiments, if the UE does not provide the FEC identification due to being configured to provide UL traffic information, or if the information previously provided in the FEC identification has changed since the last transmission of the UEAssistanceInformation message containing the FEC identification: if the UE is able to identify the application layer FEC of the QoS flow, set FEC-Identification to true; otherwise, set FEC identification to false.

[0210] In some embodiments, the first information can be transmitted by a MAC CE, a PDCP Control PDU or an RLC Control PDU.

[0211] In summary, according to the above embodiments of the present solution, the terminal can indicate whether it can support identifying the information of the data packet using the application layer FEC at the access layer, and the network device can configure the terminal according to the indication of the terminal.

[0212] The method is as follows: FIG. 6a is a structural schematic diagram of the terminal 101 according to an embodiment of the present disclosure. As shown in FIG. 6a, the terminal 101 comprises: a transceiver module 6101 configured to send first information to a network device, the first information being used to indicate whether the terminal can identify the information of a first data packet at an access layer, the first data packet using an application layer forward error correction code FEC; optionally, the transceiver module is configured to perform at least one of the steps related to the transceiving performed by the terminal 101 in any of the above methods (for example, steps 2101, 2102, etc., but not limited thereto), which will not be repeated here.

[0213] In some embodiments, the transceiver module can also be configured to receive second information.

[0214] FIG. 6b is a structural schematic diagram of the network device 102 according to an embodiment of the present disclosure. As shown in FIG. 6b, the network device 102 comprises: a transceiver module 6201 configured to receive first information sent by a terminal, the first information being used to indicate whether the terminal can identify the information of a first data packet at an access layer, the first data packet using an application layer forward error correction code FEC; optionally, the transceiver module is configured to perform at least one of the steps related to the transceiving performed by the network device 102 in any of the above methods (for example, steps 2101, 2102, etc., but not limited thereto), which will not be repeated here.

[0215] In some embodiments, the transceiver module can also be configured to send second information.

[0216] As shown in FIG. 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general processor or a special-purpose processor, etc., for example, a baseband processor or a central processor. The baseband processor can be used to process communication protocols and communication data, the central processor can be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. The processor 7101 is configured to invoke instructions to enable the communication device 7100 to perform any of the above methods.

[0217] In some embodiments, the communication device 7100 further includes one or more memories 7102 configured to store instructions. Optionally, all or part of the memory 7102 can also be outside the communication device 7100.

[0218] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps in the above methods, such as transmitting and receiving, are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0219] In some embodiments, the transceiver can include a receiver and a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0220] Optionally, the communication device 7100 further includes one or more interface circuits 7104 connected to the memory 7102. The interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0221] The communication device 7100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 can not be limited by FIG. 7a. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, and the like; (6) others, and the like.

[0222] FIG. 7b is a structural schematic diagram of a chip 7200 according to an embodiment of the present disclosure. For the case where the communication device 7100 is a chip or a chip system, the structural schematic diagram of the chip 7200 shown in FIG. 7b can be referred to, but is not limited thereto.

[0223] The chip 7200 includes one or more processors 7201 for invoking instructions to cause the chip 7200 to perform any of the above methods.

[0224] In some embodiments, the chip 7200 further includes one or more interface circuits 7202 connected with the memory 7203, which can be used to receive signals from the memory 7203 or other devices, and can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201. Alternatively, the terms interface circuit, interface, transceiver pin, transceiver, and the like can be replaced with each other.

[0225] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memory 7203 can be outside the chip 7200.

[0226] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 7100, causes the communication device 7100 to perform any of the above methods. Alternatively, the storage medium is an electronic storage medium. Alternatively, the storage medium is a computer-readable storage medium, but is not limited thereto, and can also be a storage medium readable by other devices. Alternatively, the storage medium can be a non-transitory storage medium, but is not limited thereto, and can also be a transitory storage medium.

[0227] The disclosure also provides a program product which, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0228] The disclosure also provides a computer program which, when executed on a computer, causes the computer to perform any of the above methods.

[0229] In the above embodiments, the implementation can be wholly or partially by software, hardware, firmware, or any combination thereof. When implemented by software, the implementation can be wholly or partially in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded and executed on a computer, the above processes or functions are wholly or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer programs can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another, for example, the computer programs can be transferred from one website, computer, server, or data center to another via wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media sets. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, high-density digital video disc (DVD)), or semiconductor media (for example, solid state disk (SSD)), etc.

[0230] The correspondence relationship shown in each table in the present disclosure can be configured or predefined. The values of the information in each table are merely examples, and other values can be configured, and the present disclosure is not limited thereto. When configuring the correspondence relationship between the information and each parameter, it is not necessarily required to configure all the correspondence relationships shown in each table. For example, the correspondence relationship shown in some rows in the table in the present disclosure can also not be configured. For another example, the above table can be appropriately deformed, for example, split, merged, and the like. The names of the parameters shown in the titles of the above tables can also use other names understandable by the communication device, and the values or representations of the parameters can also use other values or representations understandable by the communication device. The above tables can also use other data structures when implemented, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or the like.

[0231] The predefinition in the present disclosure can be understood as defining, predefining, storing, pre-storing, pre-negotiating, pre-configuring, solidifying, or pre-burning.

[0232] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0233] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device, and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0234] The above is merely a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An information indicating method characterized by comprising: The method is performed by a terminal, and the method comprises: sending first information to a network device, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction code (FEC).

2. The method of claim 1, wherein, The method further comprises: receiving second information sent by the network device, the second information being used to configure or indicate whether the terminal can send the first information to the network device.

3. The method of any one of claims 1-2, wherein, The method further comprises: sending third information to the network device, the third information being changed first information.

4. The method according to any one of claims 1 to 3, characterized in that, The indication granularity of the first information comprises at least one of: terminal granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in all current uplink transmissions; medium access control (MAC) entity granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first MAC entity; data radio bearer (DRB) granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first DRB; quality of service (QoS) flow granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first QoS flow.

5. The method according to any one of claims 1 to 4, characterized in that, At least one of the first information, the second information and the third information is comprised in at least one of the following messages: an RRC message; auxiliary information in an RRC message; a medium access control element (MAC CE); a packet data convergence protocol (PDCP) control PDU; a radio link control (RLC) control PDU.

6. An information indicating method characterized by comprising: The method is performed by a network device, and the method comprises: receiving first information sent by a terminal, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction code (FEC).

7. The method of claim 6, wherein, The method further comprises: sending second information to the terminal, the second information being used to configure or indicate whether the terminal can send the first information to the network device.

8. The method of any one of claims 6-7, wherein, The method further comprises: receiving third information sent by the terminal, the third information being changed first information.

9. The method according to any one of claims 6 to 8, characterized in that, The indication granularity of the first information comprises at least one of: terminal granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in all current uplink transmissions; medium access control (MAC) entity granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first MAC entity; data radio bearer (DRB) granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first DRB; quality of service (QoS) flow granularity, the first information being used to indicate whether the terminal can identify information of the first data packet in uplink transmission of a first QoS flow.

10. The method according to any one of claims 6 to 9, characterized in that, At least one of the first information, the second information and the third information is comprised in at least one of the following messages: an RRC message; Auxiliary information in an RRC message; Medium access control element (MAC CE); Packet data convergence protocol (PDCP) control PDU; Radio link control (RLC) control PDU.

11. The method according to any one of claims 6 to 10, characterized in that, The network device is a source network device, and the method further includes: When performing cell switching, sending the first information to a target network device.

12. The method according to any one of claims 6 to 10, characterized in that, The network device is a target network device, and the method further includes: When performing cell switching, receiving the first information sent by a source network device.

13. The method of any one of claims 6-10, wherein: The network device is a centralized unit (CU), and the method further includes: sending the first information to a distributed unit (DU); or The network device is a distributed unit (DU), and the method further includes: sending the first information to a centralized unit (CU).

14. The method of any one of claims 6-10, wherein: The network device is a distributed unit (DU), and the method further includes: receiving the first information sent by a centralized unit (CU); or The network device is a centralized unit (CU), and the method further includes: receiving the first information sent by a distributed unit (DU).

15. A terminal, characterized by Comprising: A transceiver configured to send first information to a network device, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC) code.

16. A network device, comprising: Comprising: A transceiver configured to receive first information sent by a terminal, the first information being used to indicate whether the terminal can identify information of a first data packet at an access layer, the first data packet using an application layer forward error correction (FEC) code.

17. A communication system, characterized by Comprising: A terminal configured to perform the method of any one of claims 1-5; A network device configured to perform the method of any one of claims 6-14.

18. A communication device, wherein, Comprising: A transceiver; A memory; A processor connected to the transceiver and the memory, respectively, and configured to control wireless signal transceiving of the transceiver by executing computer executable instructions on the memory, and capable of implementing the method of any one of claims 1-5 or the method of any one of claims 6-14.

19. A computer storage medium, wherein, The computer storage medium stores computer executable instructions; the computer executable instructions are executed by the processor to implement the method of any one of claims 1-5 or the method of any one of claims 6-14.

20. A computer program product, characterised in that, The computer program, when executed by the processor, can implement the method of any one of claims 1-5 or the method of any one of claims 6-14.

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