Communication method and apparatus

Abstract

The present application provides a communication method and apparatus. The method comprises: receiving first configuration information, the first configuration information being used for indicating the division of a first resource set; sending first information by means of a random access channel (RACH) resource in the first resource set and indicating that a measurement result to be reported is present in a terminal device or that an event has been triggered on the terminal device, the first information comprising a random access preamble; and receiving second information, the second information being used for indicating a first uplink resource available to the terminal device, and sending third information by means of the first uplink resource, the third information comprising a measurement result. According to the method provided by the present application, even in a scenario where there are no available PUCCH resources, a terminal device can report a measurement result to a network device in a timely manner, so that the network device can determine whether beam handover or cell handover is required, thereby preventing beam failure or handover failure.

Description

Communication method and apparatus

[0001] This application claims priority to the Chinese Patent Application No. 202410854630.9, filed on June 27, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, and in particular to a communication method and apparatus. BACKGROUND

[0003] In a mobile communication system, due to the movement of the location of the terminal device, the access network device needs to instruct the terminal device to perform beam switching or cell switching. The access network device judges the appropriate target beam or target cell according to the measurement result reported by the terminal device, and instructs the terminal device. The physical layer measurement reporting mechanism is a commonly used reporting method for the access network device to determine whether to perform beam switching or cell switching.

[0004] However, frequent reporting of measurement results by the terminal device will increase the power consumption of the terminal and occupy more air interface transmission resources. Therefore, an event-triggered reporting mechanism can be introduced. When the terminal device evaluates that an event has been triggered and needs to perform measurement result reporting, the terminal device indicates that there is measurement result to be sent to the base station through a physical uplink control channel (PUCCH) resource. However, in some scenarios, the terminal device may not have available PUCCH resources to indicate to the base station that there is measurement result to be sent, thereby causing the terminal device to be unable to report the measurement result to the base station in a timely manner, which may result in untimely beam switching or untimely cell switching, causing beam failure or radio link failure, and causing communication interruption. SUMMARY

[0005] The present application provides a communication method and apparatus. In the scenario where the terminal device does not have available PUCCH resources, the terminal device completes the reporting of the measurement result through a random access process. The method provided in the present application enables the terminal device to report the L1 measurement result to the network device in a timely manner in the scenario where the terminal device does not have available PUCCH resources, so that the network device determines whether to perform beam switching or cell switching, thereby avoiding beam failure or switching failure.

[0006] In a first aspect, a communication method is provided. The method can be performed by a terminal side, or can also be performed by other subjects, which is not limited in the present application. The terminal side includes a terminal device, or a chip or circuit (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or system in package (SIP) chip containing a modem core) in the terminal device, or a functional module capable of invoking and executing a program in the terminal device, and the like. For ease of description, the following will be described by taking the terminal device as an example.

[0007] The communication method provided in the present application includes receiving first configuration information, which is used to indicate division of a first resource set. The method further includes sending first information through a random access channel (RACH) resource in the first resource set and indicating that the terminal device has to-be-reported measurement results or that an event has triggered the terminal device, the first information including a random access preamble. The method further includes receiving second information, which is used to indicate a first uplink resource available to the terminal device, sending third information through the first uplink resource, and the third information including the measurement results.

[0008] Based on the above technical solution, the terminal device sends a preamble through the RACH resource indicated by the network device, and the network device determines that the terminal device has to-be-reported measurement results based on this and sends an uplink resource to enable the terminal device to report measurement data. The terminal device can timely report the measurement results without PUCCH resources, so that the network device can determine whether beam switching or cell switching is needed, thereby avoiding beam failure or switching failure, and further improving user experience.

[0009] It should be understood that when the terminal device sends the first information through the RACH resource in the first resource set, that is, when the network device receives the first information carried by the RACH resource in the first resource set, the network device can determine that the terminal device has to-be-reported measurement results based on this.

[0010] It should be understood that the terminal device can also indicate to-be-reported measurement results or that an event has triggered through the first resource set, that is, the network device determines that the terminal device has to-be-reported measurement results or that an event has triggered based on the first resource set.

[0011] It should be understood that the terminal device can also indicate to-be-reported measurement results or that an event has triggered through the first information, that is, the network device determines that the terminal device has to-be-reported measurement results or that an event has triggered based on the first information.

[0012] It should be understood that the first configuration information and the second information can be received through one message bearer or separately, and the present application does not make special limitation thereon.

[0013] It should be understood that the first information and the third information can be sent through one message bearer or separately, and the present application does not make special limitation thereon.

[0014] With reference to the first aspect, in some implementations of the first aspect, the first resource set is a subset of the second resource set, the second resource set includes all RACH resources available to the terminal device in the current serving cell, and there is no intersection between all subsets of the second resource set.

[0015] It should be understood that the second resource set can have one or more subsets, and there is no intersection between all subsets, and the present application does not make special limitation thereon.

[0016] It should be understood that the first resource set can include part or all of the resources in the second resource set, and the present application does not make special limitation thereon.

[0017] With reference to the first aspect, in some implementations of the first aspect, before the terminal device sends the first information, the method further includes selecting the first resource set according to the information size of the third information or the measurement result.

[0018] Based on the above technical solution, the network device divides different RACH resource sets through the first configuration information, the terminal device selects a suitable resource set according to the information size of the third information or the measurement result, and sends the random access preamble through the resource set. The terminal device can determine the information size of the information or the measurement result to be reported by the terminal device according to the resource set selected by the network device, so as to match the terminal device with appropriate uplink resources, make the utilization of resources more reasonable, improve the utilization rate of resources, and reduce resource waste. Moreover, the network device determines the information size of the information to be reported by the terminal device through the resource subset, without other indication information to indicate the information size to be reported, thereby further saving signaling overhead.

[0019] With reference to the first aspect, in some implementations of the first aspect, the first configuration information includes at least one of the following: a random access preamble, a time domain position of random access, a frequency domain position of random access, and an identifier for indicating a random access occasion.

[0020] With reference to the first aspect, in some implementations of the first aspect, the second information is further used to instruct the terminal device to send the third information using the first uplink resource.

[0021] Based on the above technical solution, the second information sent by the network device to the terminal device carries the uplink resource, and the terminal device is further instructed to report the measurement data on the uplink resource. When the network device receives the uplink information, it can determine that the uplink information contains the measurement result, so that the network device can correctly decode the content in the uplink information, avoiding the case of decoding failure or error of the network device.

[0022] In combination with the first aspect, in some implementations of the first aspect, before the first information is sent, the method further includes determining that the terminal device has measurement results to be reported or an event has been triggered, and the terminal device currently has no available physical uplink control channel (PUCCH) resource.

[0023] Based on the above technical solution, the terminal device completes the reporting of the measurement result with the assistance of the random access process in the case that no PUCCH resource is available. This enables the terminal device to timely report the L1 measurement result to the network device in the scenario that no PUCCH resource is available, so that the network device can determine whether beam switching or cell switching is needed, avoiding beam failure or switching failure.

[0024] The second aspect provides a communication method. The method can be executed by a terminal side, or can also be executed by other subjects, which is not limited in the present application. The terminal side includes a terminal device, or a chip or circuit in the terminal device (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), or a functional module capable of calling and executing programs in the terminal device, etc. For ease of description, the following will be described by taking the terminal device as an example.

[0025] The communication method provided by the present application includes sending first information, the first information including a random access preamble. The method further includes receiving fourth information, the fourth information being used to indicate a second uplink resource available to the terminal device. The fifth information is sent through the second uplink resource, the fifth information being used to indicate that the terminal device has measurement results to be reported or that the terminal device has an event triggered. The method further includes receiving second information, the second information being used to indicate a first uplink resource available to the terminal device; and sending third information through the first uplink resource, the third information including the measurement result.

[0026] Based on the above technical solution, when the network device does not divide specific RACH resources for the terminal device, the terminal device initiates random access. The terminal device sends a random access preamble to the network device, and sends indication information through the uplink resource authorized by the network device to indicate that the terminal device has measurement results to be reported or that the terminal device has an event triggered. Based on this, the network device indicates the available uplink resource to the terminal device, and the terminal device reports the measurement results through the uplink resource. The terminal device can report the measurement results in time without PUCCH resources and without the network device dividing specific RACH resources in advance, so that the network device can determine whether to perform beam switching or cell switching, thereby avoiding beam switching failure or switching failure, and further improving user experience.

[0027] In some implementations of the second aspect, the fifth information is further used to indicate the information size of the measurement result.

[0028] Based on the above technical solution, the fifth information sent by the terminal device is further used to indicate the information size of the measurement result to be reported. The network device determines the information or the information size of the measurement result to be reported by the terminal device according to the fifth information, and allocates appropriate uplink resources to the terminal device, so that the utilization of resources is more reasonable, the utilization rate of resources is improved, and resource waste is reduced. In addition, the network device determines the information size of the information to be reported by the terminal device through the resource subset, without other indication information to indicate the information size of the information to be reported, thereby further saving signaling overhead.

[0029] In some implementations of the second aspect, the second information is further used to indicate that the terminal device sends the third information using the first uplink resource.

[0030] In some implementations of the second aspect, before sending the first information, the method further includes determining that the terminal device has measurement results to be reported or has an event triggered, and that the terminal device currently has no available physical uplink control channel (PUCCH) resource.

[0031] In a third aspect, the present application provides a communication method. The method can be executed by a network side, or can also be executed by other subjects, and the present application does not limit this. The network side includes a network device, or a chip or chip system, or a circuit in the network device, or a central unit (CU) or a distributed unit (DU) in the network device, or a functional module capable of calling and executing a program in the network device. For ease of description, the following will be described by taking the execution by the network device as an example.

[0032] The communication method provided in the application comprises sending first configuration information, the first configuration information being used for indicating division of a first resource set. The method further comprises receiving first information, the first information comprising a random access preamble of a terminal device. According to the first information being carried by a random access channel (RACH) resource in the first resource set, it is determined that the terminal device has a measurement result to be reported or that an event has triggered the terminal device. The method further comprises sending second information, the second information being used for indicating a first uplink resource available to the terminal device. The method further comprises receiving third information, the third information comprising a measurement result, the third information being carried by the first uplink resource.

[0033] With reference to the third aspect, in some implementations of the third aspect, the first resource set is a subset of a second resource set, the second resource set comprising all RACH resources available to the terminal device in a current serving cell, and there is no intersection between all subsets of the second resource set.

[0034] With reference to the third aspect, in some implementations of the third aspect, the first configuration information is further used for instructing the terminal device to select the first resource set to send the first information according to an information size of the third information or the measurement result.

[0035] With reference to the third aspect, in some implementations of the third aspect, the first configuration information comprises at least one of the following: a random access preamble, a time domain position of random access, a frequency domain position of random access, and an identifier used for indicating a random access occasion.

[0036] With reference to the third aspect, in some implementations of the third aspect, before the second information is sent, the method further comprises determining the first uplink resource according to the first resource set, and there is a corresponding relationship between the first resource set and the first uplink resource.

[0037] Based on the above technical solution, the network device determines the information size to be reported by the terminal device according to the RACH resource set carrying the random access preamble, and indicates a suitable uplink resource for the terminal device according to the information size to be reported. This can make the utilization of the uplink resource more reasonable, improve the utilization rate of the resource, and reduce resource waste. Furthermore, the network device determines the information size to be reported by the terminal device through the RACH resource set, without other indication information to indicate the information size to be reported, thereby further saving signaling overhead.

[0038] With reference to the third aspect, in some implementations of the third aspect, the second information is further used for instructing the terminal device to send the third information using the first uplink resource.

[0039] In a fourth aspect, the present application provides a communication method. The method can be executed by a network side, or can also be executed by other subjects, which are not limited in the present application. The network side includes a network device, or a chip or chip system, or a circuit in the network device, or a central unit (CU) or a distributed unit (DU) in the network device, or a functional module capable of invoking and executing a program in the network device. For ease of description, the following is described by taking the execution by the network device as an example.

[0040] The communication method provided by the present application includes receiving first information, and the first information includes a random access preamble of a terminal device. The method further includes sending fourth information, and the fourth information is used to indicate a second uplink resource available to the terminal device. The method further includes receiving fifth information, and the fifth information is used to indicate a measurement result to be reported by the terminal device or to indicate that an event has been triggered for the terminal device, and the fifth information is carried by the second uplink resource. The method further includes sending second information, and the second information is used to indicate a first uplink resource available to the terminal device. The method further includes receiving third information, and the third information includes the measurement result, and the third information is carried by the first uplink resource.

[0041] In combination with the fourth aspect, in some implementations of the fourth aspect, the fifth information is further used to indicate an information size of the measurement result.

[0042] In combination with the fourth aspect, in some implementations of the fourth aspect, before the second information is sent, the method further includes determining the first uplink resource according to the fifth information, and there is a corresponding relationship between the fifth information and the first uplink resource.

[0043] In combination with the fourth aspect, in some implementations of the fourth aspect, the second information is further used to instruct the terminal device to send the third information using the first uplink resource.

[0044] In a fifth aspect, the present application provides a communication apparatus, which has the functions of implementing the above-mentioned first aspect or the second aspect, for example, the communication apparatus includes a module or a unit or a means corresponding to the operations involved in the above-mentioned first aspect or the second aspect, which can be implemented by software, or by hardware, or by a combination of software and hardware.

[0045] The communication apparatus can be a terminal device, or a module or a unit (such as a chip, or a chip system, or a circuit) corresponding to the method or operation or step or action described in the above-mentioned first aspect or the second aspect in the terminal device, or an apparatus capable of being used with the terminal.

[0046] In a possible implementation, the communication apparatus includes a transceiver (or a communication module), and a processing unit (or a processing module) connected to the transceiver.

[0047] The transceiver can perform the receiving and sending processing in the first aspect or the second aspect, and the processing unit of the communication apparatus can perform other processing in the first aspect or the second aspect except for the receiving and sending.

[0048] In the sixth aspect, the present application provides a communication apparatus having the functions of the third aspect or the fourth aspect, for example, the communication apparatus includes a module or a unit or a means corresponding to the operations in the third aspect or the fourth aspect, which can be implemented by software, or by hardware, or by a combination of software and hardware.

[0049] The communication apparatus can be a network device, or a module or a unit (for example, a chip or a chip system or a circuit) corresponding to the method or operation or step or action described in the third aspect or the fourth aspect, or an apparatus that can be used with the network device.

[0050] In a possible implementation, the communication apparatus includes a transceiver (or a communication module), and a processing unit (or a processing module) connected to the transceiver.

[0051] The transceiver can perform the receiving and sending processing in the third aspect or the fourth aspect, and the processing unit of the communication apparatus can perform other processing in the third aspect or the fourth aspect except for the receiving and sending.

[0052] In the seventh aspect, the present application provides a communication apparatus. The communication apparatus can be a terminal side or a network side. The communication apparatus includes a transceiver, a processor and a memory, the processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to call and run the computer program from the memory, so that the communication apparatus performs the method in any possible implementation manner of the first aspect to the fourth aspect.

[0053] Optionally, the processor is one or more, and the memory is one or more.

[0054] Optionally, the memory can be integrated with the processor, or the memory and the processor are separately arranged.

[0055] Optionally, the communication apparatus further includes a transmitter (transmitter) and a receiver (receiver).

[0056] In an eighth aspect, the present application provides a communication apparatus, which comprises a memory and one or more processors. The memory is configured to store part or all of the computer program or instructions necessary to implement the functions related to the first aspect or the second aspect. The one or more processors are configured to execute the computer program or instructions, which, when executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the first aspect or the second aspect.

[0057] In a possible design, the communication apparatus can further comprise an interface circuit, and the processor is configured to communicate with other apparatuses or components through the interface circuit.

[0058] In a possible design, the communication apparatus can further comprise the memory.

[0059] The communication apparatus can be a terminal, a communication module in the terminal, or a chip responsible for communication functions in the terminal, such as a Modem chip (also referred to as a baseband chip) or a SoC or SIP chip containing a modem module.

[0060] In a ninth aspect, the present application provides a communication apparatus, which comprises a memory and a processor. The memory is configured to store part or all of the computer program or instructions necessary to implement the functions related to the third aspect or the fourth aspect. The one or more processors are configured to execute the computer program or instructions, which, when executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the third aspect or the fourth aspect.

[0061] In a tenth aspect, the present application provides a communication system. The communication system comprises a terminal device and / or a network device, wherein the terminal device is configured to perform the method in any possible implementation manner of the first aspect or the second aspect, and the network device is configured to perform the method in any possible implementation manner of the third aspect or the fourth aspect.

[0062] In an eleventh aspect, the present application provides a computer readable storage medium. The computer readable storage medium stores computer program codes or instructions, which, when executed, cause the method in any possible implementation manner of the first aspect to the fourth aspect to be implemented.

[0063] In a twelfth aspect, a chip or chip system is provided. The chip or chip system comprises at least one processor coupled with a memory, and the memory is configured to store a computer program, which, when executed, causes the method in any possible implementation manner of the first aspect to the fourth aspect to be implemented.

[0064] Exemplarily, the chip can include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

[0065] In a thirteenth aspect, the present application provides a computer program product. The computer program product comprises computer program codes or instructions, which, when executed, cause the method in any possible implementation of the first aspect to the fourth aspect to be implemented.

[0066] In a fourteenth aspect, the present application provides a computer program, which, when executed, causes the method in any possible implementation of the first aspect to the fourth aspect to be implemented.

[0067] It should be understood that the beneficial effects of the second aspect to the fourteenth aspect described above can refer to the first aspect and any possible implementation thereof, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0068] FIG. 1 is a schematic diagram of a communication system suitable for embodiments of the present application.

[0069] FIG. 2 is a schematic diagram of an application framework provided by embodiments of the present application.

[0070] FIG. 3 is a schematic diagram of L1 measurement reporting provided by embodiments of the present application.

[0071] FIG. 4 shows a schematic diagram of event-triggered L1 measurement reporting provided by embodiments of the present application.

[0072] FIG. 5 is a schematic diagram of a communication method provided by embodiments of the present application.

[0073] FIG. 6 is a schematic diagram of another communication method provided by embodiments of the present application.

[0074] FIG. 7 is a schematic diagram of yet another communication method provided by embodiments of the present application.

[0075] FIG. 8 shows a schematic diagram of a network device of a split architecture performing a communication method provided by embodiments of the present application.

[0076] FIG. 9 is a schematic block diagram of a communication apparatus 1000 provided by embodiments of the present application.

[0077] FIG. 10 is a schematic block diagram of a communication apparatus 2000 provided by embodiments of the present application. DETAILED DESCRIPTION

[0078] In order to facilitate understanding of the embodiments provided by the present application, the following points are first explained:

[0079] 1) In the present application, the terms and / or descriptions between different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0080] 2) In the present application, "at least one" means one or more, and "multiple" means two or more. The association relationship between the associated objects is described, which means that there can be three relationships, for example, A and / or B, which can represent the following cases: A exists alone, A and B exist together, and B exists alone. In the literal description of the present application, the character " / " generally represents an "or" relationship between the front and rear associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b and c can represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple.

[0081] 3) In the present application, "first", "second", and various number designations (for example, #1, #2, etc.) indicate the differentiation for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, different messages are distinguished, rather than being used to describe a specific order or sequence. It should be understood that the objects thus described can be interchanged under appropriate circumstances, so as to be able to describe schemes other than the embodiments of the present application.

[0082] 4) In the present application, the descriptions such as "when", "in the case of", and "if" mean that the device will make corresponding processing under certain objective circumstances, and are not limited to time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0083] 5) In the present application, "indicate" or "for indicating" can include direct indication and indirect indication. When describing that certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, and it does not mean that A must be carried in the indication information.

[0084] The indication manner related in the embodiments of the present application should be understood as covering various methods that can make the to-be-indicated party know the to-be-indicated information. The to-be-indicated information can be sent as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different, and the present application does not limit the sending method.

[0085] The indication information in the embodiments of the present application can be explicit indication, that is, directly indicated through signaling, or obtained according to the parameters indicated by the signaling, combined with other rules or combined with other parameters or by derivation. It can also be implicit indication, that is, obtained according to rules or relationships, or according to other parameters, or by derivation. The present application does not make specific limitations on this.

[0086] 6) In the present application, "protocol" can refer to a standard protocol in the field of communication, which can include, for example, a 5th generation (5G) protocol, a new radio (NR) protocol, and related protocols applied in future communication systems, and the present application does not limit it. "Predefined" can include predefinition. For example, protocol definition. "Preconfigured" can be implemented by pre-saving the corresponding code, table or other means that can be used to indicate related information in the device, and the present application does not limit its implementation manner.

[0087] 7) In the present application, "communication" can also be described as "data transmission", "information transmission", "data processing" and the like. "Transmission" includes "sending" and "receiving". "Transmission" can be described as "output".

[0088] 8) In the present application, "sending information to XX (device)" can be understood as that the destination of the information is the device. It can include directly or indirectly sending information to the device. "Receiving information from XX (device), or receiving information from XX (device)" can be understood as that the source of the information is the device, which can include directly or indirectly receiving information from the device. The information can be processed as necessary between the source and the destination of the information transmission, such as format change, etc., but the destination can understand the valid information from the source.

[0089] 9) In the present application, when comparing A and B, the description of "when A is greater than or equal to B, execution mode A, and when A is less than or equal to B, execution mode B" can be "when A is greater than or equal to B, execution mode A, or when A is less than B, execution mode B", or "when A is greater than B, execution mode A, or when A is less than or equal to B, execution mode B", and the present application does not limit it. In order to facilitate the description, the implementation manner provided in the present application is taken as an example to be described as "when A is greater than or equal to B, execution mode A, or when A is less than B, execution mode B".

[0090] 10) The present application will present various aspects, embodiments or features around a system that can include a plurality of devices, components, modules, etc. It should be understood and appreciated that each system can include additional devices, components, modules, etc., and / or can not include all the devices, components, modules, etc. discussed in connection with the drawings. In addition, combinations of these solutions can also be used.

[0091] In addition, in the embodiments of the present application, the words "exemplary", "for example", and the like are used solely to indicate examples, instances, or illustrations, and are not intended to imply or designate a crucial or advantageous preference for the embodiments described by the words. In fact, the word "exemplary" is used to present concepts in a concrete manner. In the embodiments of the present application, "of", "corresponding" and "corresponding" are sometimes mixed. It should be pointed out that when the difference is not emphasized, the meanings expressed are consistent.

[0092] The technical solutions in the present application will be described below in conjunction with the drawings.

[0093] First, the communication scenarios and systems applicable to the embodiments of the present application are described.

[0094] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as global system for mobile communications, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunications system, 4th generation (4G) mobile communication system, 4.5th generation (4.5G) mobile communication system, 5th generation (5G) mobile communication system or NR, and future communication systems / networks. The technical solutions provided in the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and internet of things (IoT) communication system. The technical solutions of the embodiments of the present application can also be applied to universal mobile telecommunications system (UMTS), code division multiple access (CDMA) system, wireless local area network (WLAN), etc.

[0095] As an example, the V2X communication can include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, vehicle-to-network (V2N) communication.

[0096] The technical solutions provided in the present application can also be applied to a non-terrestrial network (NTN) system, for example, an inter-satellite communication system, a satellite communication system, a high altitude platform station (HAPS) communication, an integrated communication and navigation (ICaN) system, a global navigation satellite system (GNSS), etc.

[0097] As an example, the satellite communication system includes a satellite base station and a terminal device. The satellite base station provides communication services for the terminal device. The satellite base station can also communicate with a base station. The satellite can act as a base station or a terminal device. The satellite can refer to a drone, a hot air balloon, a low earth orbit satellite, a medium earth orbit satellite, a high earth orbit satellite, etc. The satellite can also refer to a non-ground base station or a non-ground device, etc. It should be understood that the satellite communication system can be integrated with a traditional mobile communication system.

[0098] A device in a communication system can send a signal to another device or receive a signal from another device. The signal can include a reference signal, information, signaling, or data, etc. The device can also be replaced by an entity, a network entity, a network element, a communication device, a communication module, a node, a communication node, etc. The present disclosure describes the device as an example. For example, the communication system can include at least one terminal device and at least one network device. The network device can send a downlink signal to the terminal device, and / or the terminal device can send an uplink signal to the network device. In the present application, the device can be replaced by an entity, a network entity, a communication device, a communication module, a node, a communication node, etc.

[0099] In embodiments of the present application, the apparatus for implementing the function of the terminal device, i.e., the terminal apparatus, can be a terminal device or an apparatus capable of supporting the terminal device to implement the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the terminal device. In embodiments of the present application, the chip system can be composed of a chip or can include a chip and other discrete devices. In addition, the apparatus can further be configured with program instructions for performing the corresponding communication function.

[0100] The network device in embodiments of the present application can be a device or a module having a corresponding communication function. The network device can be a device for communicating with the terminal device, which can also be referred to as an access network device or a radio access network device, such as a network device, which can be a base station. The network device in embodiments of the present application can refer to a radio access network (RAN) node (or device) for accessing the terminal device to a wireless network.

[0101] FIG. 1 is a schematic diagram of a communication system suitable for embodiments of the present application.

[0102] The communication system includes a network device and a terminal device. The terminal device is located in the coverage of one or more cells (carriers) managed by the network device, and the cell providing services for the terminal device can be one or more. In the case where there are multiple cells providing services for the terminal device, the terminal device can work in a carrier aggregation (CA) or dual connectivity (DC) or coordinated multipoint transmission manner, and at least one of the multiple cells can provide at least two numerologies for the terminal device to simultaneously provide wireless resources for the terminal device.

[0103] As an example but not limitation, as shown in FIG. 1, the terminal device 110 is simultaneously located in the cell of the network device 120, the cell of the network device 130, and the cell of the network device 140, the network device 120 can be a macro base station (such as a macro evolutional Node B, a macro eNB or a macro e-NodeB), and the network devices 130 and 140 can be micro base stations (such as small eNB or small e-NodeB). It should be understood that FIG. 1 is only a schematic diagram, and the communication system can further include a core network device, a wireless relay device, a wireless backhaul device and other network devices, which are not shown in FIG. 1.

[0104] Embodiments of the present application do not limit the number of network devices, terminal devices, core network devices and other network devices included in the communication system.

[0105] The network device in the embodiments of the present application can correspond to different devices in different types or systems of communication systems, for example, in a 5G system, it corresponds to a network device (such as gNB or ng-eNB) in 5G, and in a 4G system, it corresponds to a network device (such as eNB or en-gNB) in 4G. The network device can be an access network device, which is a radio access network (RAN) node (or device) that accesses a terminal device to a wireless network. The network device includes but is not limited to: a base station (BS), a radio network controller (RNC), a base station controller (BSC), a network device transceiver station (BTS), a home base station (such as a home evolved Node B or a home Node B, HNB), a baseband unit (BBU), a wireless fidelity (Wifi) access point (AP), a wireless relay node, a wireless backhaul node, a transmission and reception point (TRP; or transmission point, TP). Among them, the base station is a device deployed in the radio access network that can provide wireless communication functions, which can also be called a base station device, such as the evolved Node B (eNB or e-NodeB) in the LTE system, Node B (NB), base station (gNodeB or gNB) in the 5G system, base station in future communication networks, etc. The base station can include a BBU and a remote radio unit (RRU). The BBU and the RRU can be placed in different places, for example: RRU pull, placed in a high traffic area, BBU placed in a central machine room. The BBU and the RRU can also be placed in the same machine room. The BBU and the RRU can also be different components under one rack. The base station can be in the following forms: macro base station, micro base station (also known as small station), pico base station, relay station, access point, balloon station, etc.

[0106] In some optional implementation, in some deployments of the access network device, the access network device can include a central unit (CU) and / or a distributed unit (DU). Where the access network device includes the CU and the DU, the protocol layers of the eNB in the LTE system are split, the functions of part of the protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU. In some deployments of the access network device, the CU can also be divided into a CU-control plane (CP) and a CU-user plane (UP), etc. In yet some deployments of the access network device, the access network device can also be an open radio access network (ORAN) architecture, etc. The specific deployment mode of the access network device is not limited in the present application.

[0107] In the embodiments of the present application, the terminal device can also be referred to as a user equipment (UE), a terminal, an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a user agent or a user apparatus, which can be applied to 4G, 5G and future communication networks. The terminal device can provide voice and / or data connectivity for a user. The terminal device can be a joint device for transmitting and receiving digital signals on a common telephone line, and can also be a handheld device with wireless connection function, a vehicle-mounted device, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a mobile phone, a pad, a notebook computer, a palm computer, a computer with wireless transceiver function, a mobile internet device (MID), a wearable device, a head-mounted display (HMD), a virtual reality (VR) device (such as VR glasses), an augmented reality (AR) device (such as AR glasses), a mixed reality (MR) device, a wireless terminal in industrial control, a processing device connected to a wireless modem, a haptic terminal device, a vehicle-mounted device, a wireless terminal in self driving, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a road side unit (RSU) of the wireless terminal type of the foregoing, and the like.

[0108] The network device and the terminal device in the embodiments of the present application can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on water surface; can also be deployed on aircraft, balloons and artificial satellites in the air. The application scenarios of the network device and the terminal device in the embodiments of the present application are not limited.

[0109] It should be noted that the network architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of communication network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0110] FIG. 2 is a schematic diagram of an application framework provided by the embodiments of the present application.

[0111] By way of example and without limitation, in the embodiments of the present application, the access network device can adopt a CU-DU separation architecture, which can also be referred to as a distributed deployment architecture.

[0112] By way of example and without limitation, FIG. 2 is a schematic diagram of a CU-DU separation architecture adopted by an access network device according to an embodiment of the present application. As shown in the figure, the access network device can logically include a CU and one or more DUs, each DU can be connected to the CU through an F1 interface, and the information exchange between different DUs can be completed based on the forwarding of the CU. The CU and the DU can be physically arranged together or physically separated, which is not limited. The CU can support the functions of radio resource control (RRC), packet data convergence protocol (PDCP), and service data adaptation protocol (SDAP); the DU can support the functions of radio link control (RLC) layer protocol, media access control (MAC) layer protocol, and physical layer (PHY) protocol.

[0113] It should be understood that in some specific implementations, media access control (MAC) is also referred to as medium access control, which is not specially limited in the present application.

[0114] In a mobile communication system, due to the movement of the location of the terminal, the access network device needs to instruct the terminal to perform beam switching or cell switching. The access network device judges the appropriate target beam or target cell according to the measurement result reported by the terminal, and instructs the terminal. The L1 measurement reporting mechanism is a commonly used reporting method for the access network device to determine whether to perform beam switching or cell switching.

[0115] In some implementations, L1 refers to Layer 1, i.e., the physical layer, and the process of L1 measurement reporting is mainly completed by the physical layer. The L1 measurement reporting is also referred to as the physical layer measurement reporting, which is not specially limited in the present application.

[0116] By way of example and not limitation, the L1 measurement reporting mechanism is described below in connection with FIG. 3.

[0117] FIG. 3 is a schematic diagram of an L1 measurement reporting provided by an embodiment of the present application.

[0118] S301: The network device sends configuration information 1 to the terminal device.

[0119] The configuration information 1 is used to indicate the configuration of the L1 measurement. The configuration information 1 includes, but is not limited to, at least one of the following information: a set of reference signals to be measured, a reporting mode of measurement results, reported measurement results, and an uplink resource used for reporting.

[0120] Optionally, the set of reference signals to be measured includes reference signals of a serving cell and / or a neighbor cell.

[0121] Optionally, the reporting mode of measurement results includes periodic reporting, aperiodic reporting, and semi-static reporting. Specifically, the periodic reporting includes periodic reporting by the terminal device according to a configured period. The aperiodic reporting includes one-time reporting by the terminal device in response to a reporting signaling received from the network device. The semi-static reporting includes periodic reporting by the terminal device in response to a reporting signaling received from the network device.

[0122] It should be understood that the reporting signaling can be sent by the network device to the terminal device through a separate information, or can be sent by the network device in other information. The sending of the reporting signaling is not shown in FIG. 3, and is not specially limited in the present application.

[0123] Optionally, the reported measurement results include, but are not limited to, at least one of the following measurement quantities: reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), precoding matrix indication (PMI), channel quality information (CQI), rank indication (RI), etc.

[0124] It should be understood that the reported measurement result can be a cell-level measurement result, or a beam-level and / or reference signal-level measurement result, and the present application does not make special limitations thereto.

[0125] Optionally, the uplink resource used for reporting includes a physical uplink control channel (PUCCH) resource and / or a physical uplink shared channel (PUSCH) resource.

[0126] S302: The terminal device sends measurement result information 1 to the network device.

[0127] The measurement result information 1 includes L1 measurement results. The terminal device will perform L1 measurement and reporting according to the measurement configuration and signaling indication provided by the network device in the configuration information 1.

[0128] By way of example but not limitation, the measurement result information 1 includes L1 measurement results, and the measurement result information 1 is reported to the network device through uplink control information (UCI). The UCI is carried on a PUCCH or PUSCH resource.

[0129] It should be understood that the measurement result information 1 is also referred to as L1 measurement results, that is, the physical layer of the terminal device measures the received signal, and the UCI is L1 uplink control information.

[0130] After receiving the measurement result information 1, the network device will make a judgment according to the measurement result. It is judged whether the current terminal device needs to perform cell switching or beam switching. If switching is needed, step S303 is performed.

[0131] S303: The network device sends indication information 1 to the terminal device.

[0132] The indication information 1 is used to instruct the terminal device to perform cell switching or beam switching.

[0133] Through the above steps, the terminal device can complete L1 measurement and reporting. However, if the terminal device frequently performs measurement and reporting, it will cause an increase in terminal power consumption and occupy more air interface transmission resources.

[0134] Therefore, a trigger condition can be set for L1 measurement and reporting.

[0135] FIG. 4 shows a schematic diagram of event-triggered L1 measurement and reporting according to an embodiment of the present application.

[0136] S401: The network device sends configuration information 2 to the terminal device.

[0137] The configuration information 2 is used to indicate a condition for the UE to configure the L1 measurement reporting, which can also be referred to as an event.

[0138] By way of example but not limitation, the reporting condition indicated by the configuration information 2 includes that the quality of the reference signal corresponding to beam #2 is higher than the quality of the reference signal corresponding to beam #1. Here, beam #1 includes the current serving beam of the terminal device, and beam #2 includes one or more new beams, which are different from beam #1.

[0139] It should be understood that in some specific implementations, beam #2 is also referred to as a candidate beam, a monitoring beam, etc.

[0140] It should be understood that the quality of the reference signal includes but is not limited to the reference signal received power (RSRP).

[0141] S402: The terminal device performs L1 measurement and evaluates whether the reporting condition is met.

[0142] The terminal device performs reference signal measurement and evaluates whether the reporting condition configured in the configuration information 2 is met. If the current reporting condition is met, the L1 reporting process is triggered, and the following steps are performed.

[0143] S403: The terminal device sends reporting information 1 to the network device.

[0144] The reporting information 1 is used to indicate to the network device that the L1 measurement result to be reported, or to indicate that the L1 measurement reporting condition has been met. The reporting information 1 can be a PUCCH message.

[0145] S404: The network device sends indication information 2 to the terminal device.

[0146] The indication information 2 is used to indicate to the terminal device an uplink grant, which indicates the time-frequency resource to be used by the terminal device when sending the measurement result uplink.

[0147] By way of example but not limitation, the indication information 2 includes a physical downlink control channel (PDCCH) message sent by the network device to the terminal device.

[0148] By way of example but not limitation, the indication information 2 includes downlink control information (DCI) sent by the network device to the terminal device.

[0149] S405: The terminal device sends measurement result information 2 to the network device.

[0150] The terminal device transmits the L1 measurement result using the PUSCH resource corresponding to the uplink grant.

[0151] By way of example and not limitation, the PUSCH can include uplink service data in addition to the L1 measurement result. The measurement result information 2 is reported to the network device via UCI.

[0152] It should be understood that the UCI can be carried on a PUCCH or a PUSCH resource. When the UCI is carried in the PUSCH, the PUSCH can include the UCI and uplink service data. The network device needs to determine whether the PUSCH contains only uplink service data or contains uplink service data and UCI in order to correctly decode the content in the PUSCH.

[0153] It should be understood that when the network device knows that the terminal device has L1 measurement results to be transmitted, the network device decodes and receives the PUSCH in a manner that the PUSCH contains L1 measurement results after receiving the measurement result information 2 transmitted via the PUSCH resource, so that the L1 measurement results can be successfully received.

[0154] As can be seen from the method shown in FIG. 4, the terminal device needs to indicate the measurement results to be transmitted to the network device via a PUCCH message before reporting the measurement results. However, in some actual scenarios, the terminal device can have no available PUCCH resource, and thus cannot report the measurement results via the method shown in FIG. 4. In some actual scenarios, when the uplink of the terminal device is in an out-of-sync state, the terminal device releases the previously configured PUCCH resource. If the terminal device subsequently evaluates and determines that the L1 measurement reporting event has been satisfied and needs to be reported to the network device, the terminal device will have no available PUCCH resource to indicate the L1 measurement results to be transmitted to the network device. The terminal device cannot timely report the measurement results to the network device, which can cause the beam switching or cell switching to be untimely, and further cause the beam failure or radio link failure, resulting in communication interruption.

[0155] The present application provides a communication method. When the terminal device evaluates and determines that the L1 measurement reporting event has been satisfied and needs to be reported, the terminal device can complete the reporting of the measurement results without available PUCCH resources, thereby avoiding the beam failure or radio link failure caused by the lack of available PUCCH resources.

[0156] In a specific implementation manner, the network device configures a special RACH resource set for the terminal device. When the terminal device initiates random access via the resource set, the network device determines that the terminal device has measurement results to be reported or an event has been triggered.

[0157] In another specific implementation, the network device does not allocate a special set of RACH resources for the terminal device, and after the terminal device evaluates that the L1 measurement reporting event is satisfied / triggered, the terminal device initiates random access, and in the random access process, the terminal device is indicated by signaling that the terminal device has measurement results to be reported or an event has been triggered.

[0158] The above implementation modes are described below in combination with FIG. 5.

[0159] FIG. 5 is a schematic diagram of a communication method provided by an embodiment of the present application.

[0160] In a specific implementation, the network device configures a special set of RACH resources for the terminal device, and then the following steps are performed:

[0161] S501: The network device sends first configuration information to the terminal device.

[0162] The first configuration information is used to indicate the division of the first resource set. The first resource set is a subset of the second resource set, and the second resource set includes all RACH resources available to the terminal device in the current serving cell.

[0163] The first configuration information includes but is not limited to at least one of the following: a random access preamble, a time domain location of random access, a frequency domain location of random access, and an identifier used to indicate a random access occasion.

[0164] It should be understood that the second resource set can be divided into one or more subsets, and there is no intersection between all subsets. The present application does not specially limit the number of subsets in which the second resource set is divided.

[0165] It should be understood that the first configuration information can be an RRC message, a MAC CE, or a DCI message. The RACH resource can be a contention-based RACH resource or a non-contention-based RACH resource, and the present application does not specially limit this.

[0166] S502: The terminal device performs L1 measurement and evaluates whether the reporting condition is satisfied.

[0167] When the terminal device judges that there are measurement results to be reported or an event has been triggered, and the terminal device currently has no available physical uplink control channel (PUCCH) resource, the terminal device initiates random access.

[0168] S503: The terminal device sends a first message to the network device.

[0169] The terminal device sends the first message to the network device through the RACH resource in the first resource set. The first resource set is a subset of the second resource set, and the first resource set includes part or all of the RACH resources in the second resource set.

[0170] In an optional implementation, the terminal device selects the reported resource set according to the measurement result or the size of the information to be reported. The terminal device selects a first resource set according to the length of the measurement result, and transmits a first message through the RACH resource in the first resource set. The first message includes a random access preamble.

[0171] By way of example but not limitation, the network device can also set a selected threshold condition for the divided resource set in the first configuration information. When the data size of the measurement result to be reported by the terminal device meets the threshold condition, the first message is carried through the first resource set.

[0172] It should be understood that when the data size of the measurement result to be reported by the terminal device meets the threshold condition of other sets, the first message is carried through the corresponding resource set, which is not specially limited by the present application.

[0173] The network device can determine that the terminal device has a measurement result to be reported or that the terminal device has an event triggered by receiving the first message carried by the first resource set.

[0174] It should be understood that the terminal device can also indicate that there is a measurement result to be reported or that an event has been triggered through the first resource set, that is, the network device determines that the terminal device side has a measurement result to be reported or that an event has been triggered according to the first resource set.

[0175] It should be understood that the terminal device can also indicate that there is a measurement result to be reported or that an event has been triggered through the first message, that is, the network device determines that the terminal device side has a measurement result to be reported or that an event has been triggered according to the first message.

[0176] It should be understood that in this specific implementation, the first message is a specific implementation of the first information in the above-mentioned embodiments of the present application.

[0177] S506: The network device sends a second message to the terminal device.

[0178] The second message is used to indicate an uplink resource #1 available to the terminal device.

[0179] The network device can determine the information size of the measurement result to be reported by the terminal device through the first resource set carrying the first message, to indicate the appropriate uplink resource to carry the measurement result, and there is a corresponding relationship between the first resource set and the uplink resource #1.

[0180] In an optional implementation, the second message is also used to instruct the terminal device to report the measurement result through the uplink resource #1.

[0181] It should be understood that, in this specific implementation, the second message is a specific implementation of the second information in the above-mentioned embodiments of the present application.

[0182] It should be understood that, in this specific implementation, the uplink resource #1 is a specific implementation of the first uplink resource in the above-mentioned embodiments of the present application.

[0183] S507: The terminal device sends a third message to the network device.

[0184] The terminal device sends the third message through the uplink resource #1, and the third message includes the measurement result to be reported by the terminal device.

[0185] It should be understood that, in this specific implementation, the third message is a specific implementation of the third information in the above-mentioned embodiments of the present application.

[0186] It should be understood that, in the above steps, the first configuration information and the second message can be sent through the same message, and the first message and the third message can be sent through the same message; that is, steps S501 and S506 are executed as one step, and steps S503 and S507 are executed as one step.

[0187] In a specific implementation of two-step random access, the following steps are included:

[0188] S501: The network device sends first configuration information to the terminal device.

[0189] S506: The network device sends a second message to the terminal device.

[0190] The first configuration information is used to divide the first resource set, and the second message is used to indicate the uplink resource #1 available to the terminal device. When S501 and S506 are executed as one step, it can also be understood that the first configuration information includes the first resource set and the uplink resource #1 available to the terminal device.

[0191] It should be understood that the specific implementation of S501 and S506 and the specific role of the first configuration information and the second message are similar to the above-mentioned implementation, and for the sake of brevity, the present application will not be repeated here.

[0192] It should be understood that, in this specific implementation, the second message is a specific implementation of the second information in the above-mentioned embodiments of the present application, and the uplink resource #1 is a specific implementation of the first uplink resource in the above-mentioned embodiments of the present application.

[0193] S503: The terminal device sends a first message to the network device.

[0194] S507: The terminal device sends a third message to the network device.

[0195] When S503 and S507 are executed as one step, the content of the first message and the third message can be combined into Msg A.

[0196] The terminal device sends the first message through the RACH resource in the first resource set, and the first message includes a random access preamble; the terminal device sends the third message through the uplink resource #1, and the third message includes the measurement result to be reported.

[0197] The network device determines that the terminal device carries the measurement result in the uplink resource #1 by receiving Mag1 carried by the first resource set, so that the content in the uplink resource can be correctly decoded.

[0198] It should be understood that the specific implementation of S503 and S507, and the specific role of the first message and the third message are similar to the above implementation, and for the sake of brevity, the present application will not be repeated here.

[0199] It should be understood that in this specific implementation, the first message is a specific implementation of the first information in the above embodiments of the present application, and the third message is a specific implementation of the third information in the above embodiments of the present application.

[0200] In another specific implementation, the network device does not configure a special RACH resource set for the terminal device, and the following steps are executed:

[0201] S502: The terminal device performs L1 measurement and evaluates whether the reporting condition is met.

[0202] When the terminal device judges that there is measurement result to be reported or an event has been triggered, and the terminal device currently has no available physical uplink control channel (PUCCH) resource, the terminal device initiates random access.

[0203] S503: The terminal device sends the first message to the network device.

[0204] The first message includes a random access preamble.

[0205] It should be understood that in this specific implementation, the first message is a specific implementation of the first information in the above embodiments of the present application.

[0206] S504: The network device sends the fourth message to the terminal device.

[0207] The fourth message is used to indicate the uplink resource #2 available to the terminal device.

[0208] As an example but not limitation, the fourth message includes a random access response (RAR) message.

[0209] It should be understood that, in this specific implementation, the fourth message is a specific implementation of the fourth information in the above embodiments of the present application.

[0210] It should be understood that, in this specific implementation, the uplink resource #2 is a specific implementation of the second uplink resource in the above embodiments of the present application.

[0211] S505: The terminal device sends a fifth message to the network device.

[0212] The terminal device sends the fifth message through the uplink resource #2, and the fifth message is used to indicate that the terminal device has measurement results to be reported or indicate that the terminal device has an event triggered.

[0213] In an optional implementation, the fifth message is also used to indicate the information size of the measurement results to be reported.

[0214] It should be understood that, in this specific implementation, the fifth message is a specific implementation of the fifth information in the above embodiments of the present application.

[0215] S506: The network device sends a second message to the terminal device.

[0216] The second message is used to indicate the uplink resource #1 available to the terminal device.

[0217] The network device can determine the information size of the measurement results to be reported by the terminal device through the fifth message, to indicate the appropriate uplink resource to carry the measurement results. There is a corresponding relationship between Mag5 and the uplink resource #1.

[0218] In an optional implementation, the second message is also used to indicate that the terminal device reports the measurement results through the uplink resource #1.

[0219] It should be understood that, in this specific implementation, the second message is a specific implementation of the second information in the above embodiments of the present application.

[0220] It should be understood that, in this specific implementation, the uplink resource #1 is a specific implementation of the first uplink resource in the above embodiments of the present application.

[0221] S507: The terminal device sends a third message to the network device.

[0222] The terminal device sends the third message through the uplink resource #1, and the third message includes the measurement results to be reported by the terminal device.

[0223] It should be understood that, in this specific implementation, the third message is a specific implementation of the third information in the above embodiments of the present application.

[0224] Below, as an example but not limitation, the specific implementation of the method provided in the present application is described. The specific implementation of the network device configuring a special RACH resource set for the terminal device is described by means of FIG. 6.

[0225] FIG. 6 is a schematic diagram of another communication method provided by an embodiment of the present application.

[0226] S601: The network device sends configuration information 3 to the terminal device.

[0227] The configuration information 3 is used to indicate the allocation of random access channel (RACH) resources to the terminal device.

[0228] The configuration information 3 includes configuration information for indicating the RACH resource set #1, and the configuration information 3 includes at least one of the following information: random access preamble, time domain location of random access, frequency domain location of random access, and identification for indicating random access occasion.

[0229] The RACH resource set #1 is a subset of the RACH resource set #2, and the RACH resource set #2 includes all RACH resources available to the terminal device in the current serving base station (or current serving cell).

[0230] It should be understood that the RACH resource set #1 described above can be further divided into RACH resource set #3, RACH resource set #4, etc., wherein the set #3 and the set #4 are subsets of the RACH resource set #1, and the set #3 and the set #4 contain different RACH resources, and there is no intersection between the resources in the set #3 and the set #4.

[0231] It should be understood that the configuration information 3 can be an RRC message, a MAC CE or a DCI message. The RACH resource can be a contention-based RACH resource or a non-contention-based RACH resource, which is not specially limited in the present application.

[0232] It should be understood that in this specific implementation, the configuration information 3 is a specific implementation of the first configuration information in the above-mentioned embodiments of the present application.

[0233] S602: The terminal device performs L1 measurement and evaluates whether the reporting condition is met.

[0234] The terminal device evaluates whether the L1 measurement reporting event is met / triggered. If the reporting condition is met / triggered, the terminal device sends information to the network device to indicate that there is measurement result to be reported.

[0235] S603: The terminal device sends an access message 1 to the network device.

[0236] When the terminal device determines that the event of the L1 measurement reporting has been satisfied / triggered, the terminal device further determines whether there is available PUCCH resource.

[0237] In one specific implementation, when the terminal device determines that there is available PUCCH resource, the terminal device sends the access message 1 to the network device through the PUCCH resource. The access message 1 is used to indicate the L1 measurement result to be reported, or the access message 1 is used to indicate that the event of the L1 measurement reporting has been satisfied / triggered.

[0238] In another specific implementation, when the terminal device determines that there is no available PUCCH resource, the terminal device initiates random access and sends the access message 1 to the network device through the RACH resource. The terminal device selects the RACH resource in the RACH resource set #1 to send the access message 1 to the network device. The access message 1 is used to indicate the L1 measurement result to be reported, or the access message 1 is used to indicate that the event of the L1 measurement reporting has been satisfied / triggered. As an example but not limitation, the access message 1 includes but is not limited to the random access preamble.

[0239] It should be understood that in this specific implementation, the RACH resource set #1 is a specific implementation of the first resource set in the above-mentioned embodiments of the application; and the access message 1 is a specific implementation of the first information in the above-mentioned embodiments of the application.

[0240] In an optional implementation, the configuration information 3 in step S601 is used to indicate that the RACH resource set #1 is divided into the RACH resource set #3 and the RACH resource set #4. The terminal device selects the set #3 or the set #4 to send the access message 1 according to the data amount of the L1 measurement result to be reported and / or according to the number of the triggered events.

[0241] As an example but not limitation, if the data amount of the L1 measurement result to be reported or the number of the triggered events of the terminal device is less than a predefined or preconfigured threshold 1, the terminal device selects the RACH resource in the RACH resource set #3 to send the access message 1; if the data amount of the L1 measurement result to be reported or the number of the triggered events of the terminal device is greater than the threshold 1, the terminal device selects the RACH resource in the RACH resource set #4 to send the access message 1. The data amount of the L1 measurement result to be reported can also be represented by the number of the cells or reference signals corresponding to the L1 measurement result to be reported.

[0242] It should be understood that in this specific implementation, the RACH resource set #3 or the RACH resource set #4 is a specific implementation of the first resource set in the above-mentioned embodiments of the application; and the access message 1 is a specific implementation of the first information in the above-mentioned embodiments of the application.

[0243] It should be understood that RACH resource set #1 can also be divided into more subsets, different subsets correspond to different content sizes of the measurement results to be reported, and a threshold is set to select RACH resources in a specific subset to send access message 1 according to the data amount of the L1 measurement result. The specific implementation can be completed by those skilled in the art according to the technical inspiration and the above implementation mode, and the present application will not be repeated here, and it should not be considered that this exceeds the protection scope of the present application.

[0244] By dividing the RACH resources into subsets and setting the judgment condition to select the corresponding subset, the network device can know the data amount of the measurement results to be reported by the terminal device through the RACH resources carrying the access message 1, so as to facilitate the network device to allocate appropriate uplink grant resources.

[0245] It should be understood that in addition to the L1 measurement results to be reported, the terminal device can also have other uplink information to be sent. Including but not limited to: RRC message, MAC control element (MAC control element, MAC CE), service data, etc. The terminal device can select the RACH resource set and / or subset by comprehensively considering the total size of these uplink information to be sent.

[0246] As an example but not limitation, the terminal device can select the RACH resource set and / or subset by comprehensively considering the total size of one or more of the L1 measurement results, RRC messages, MAC CEs, and service data.

[0247] S604: The network device sends an access message 2 to the terminal device.

[0248] The access message 2 includes a random access response (random access response, RAR) message, and the RAR message carries an uplink grant resource.

[0249] In an optional implementation mode, the access message 2 also carries indication information 3, which is used to instruct the terminal device to send the L1 measurement result.

[0250] It should be understood that in this specific implementation mode, the access message 2 is a specific implementation mode of the second information in the above-mentioned embodiments of the present application, and the uplink grant resource carried in the access message 2 is a specific implementation mode of the first uplink resource in the above-mentioned embodiments of the present application.

[0251] S605: The terminal device sends an access message 3 to the network device.

[0252] The terminal device uses the uplink grant resource to send an access message 3 to the network device.

[0253] In an optional implementation, the L1 measurement result is included in the access message 3, and the terminal device sends the L1 measurement result through the access message 3.

[0254] Specifically, in an implementation, when the access message 1 sent by the terminal device uses the RACH resource in the RACH resource set #1, the terminal device sends the L1 measurement result through the uplink grant resource. In this case, the network device judges that the access message 3 reported by the terminal device carries the L1 measurement result, so that the network device can successfully receive the L1 measurement result.

[0255] Specifically, in another implementation, the indication information indicating that the terminal device sends the L1 measurement result can also be carried in the access message 2. That is, the access message 2 sent by the network device to the terminal device in step S604 carries the indication information 3, and the indication information 3 is used to indicate that the terminal device sends the L1 measurement result through the uplink grant resource, so that the network device successfully receives the L1 measurement result.

[0256] It should be understood that, in this specific implementation, the access message 3 is a specific implementation of the third information in the above-mentioned embodiments of the application.

[0257] In another optional implementation, the L1 measurement result is not included in the access message 3, and the terminal device performs the random access process through the access message 3. The L1 measurement result is sent by performing the following steps S606 and S607.

[0258] S606: The network device sends an access message 4 to the terminal device.

[0259] The access message 4 includes DCI information, and the DCI information indicates the uplink grant and indicates that the terminal device sends the L1 measurement result through the uplink grant resource.

[0260] It should be understood that, in this specific implementation, the access message 4 is a specific implementation of the second information in the above-mentioned embodiments of the application.

[0261] In an optional implementation, when the terminal device receives the uplink grant indicated in the access message 4, and the uplink grant indicates that the terminal device can send the L1 measurement result, the terminal device considers that the random access process is successfully completed, or, after the terminal device sends the L1 measurement result using the uplink grant, the terminal device considers that the random access process is successfully completed.

[0262] In another optional implementation, when the terminal device receives the uplink grant indicated in the access message 4 for sending the L1 measurement result, or after sending the L1 measurement result using the uplink grant, the terminal device considers that the L1 measurement event is no longer in the triggered state, or the terminal device considers that the L1 measurement event is in the untriggered state, to avoid triggering and reporting again.

[0263] S607: The terminal device sends an access message 5 to the network device.

[0264] The L1 measurement result is included in the access message 5, and the terminal device sends the access message 5 using the uplink grant resource indicated in the access message 4. That is, the terminal device sends the L1 measurement result using the uplink grant in S606.

[0265] In an optional implementation, after the terminal device sends the L1 measurement result, the terminal device considers that the L1 measurement event is no longer in the triggered state, or the terminal device considers that the L1 measurement event is in the untriggered state, to avoid triggering and reporting again.

[0266] It should be understood that in this specific implementation, the access message 4 is a specific implementation of the second information in the above-mentioned embodiments of the application; and the access message 5 is a specific implementation of the third information in the above-mentioned embodiments of the application.

[0267] Through the above implementation, the terminal device can timely report the L1 measurement result to the network device in the scenario where there is no available PUCCH resource, so that the network device can determine whether to perform beam switching or cell switching to avoid beam failure or switching failure, thereby further ensuring the stability of communication and improving user experience.

[0268] Further, the network device divides different RACH resource subsets for the terminal device to send random access preambles to the network device, and the network device can determine the size of the content data to be reported by the terminal device according to the RACH subset selected by the terminal device, so as to facilitate the network device to authorize and indicate appropriate uplink resources for the terminal device.

[0269] It should be understood that the configuration information 3 and the access message 2 can be sent separately or carried by the same message; and the access message 1 and the access message 3 can be sent separately or carried by the same message, which is not specially limited in the application.

[0270] When the configuration information 3 and the access message 2 are sent separately, and the access message 1 and the access message 3 are sent separately, it belongs to a specific implementation of four-step random access. In the two-step random access scenario, the configuration information 3 and the access message 2 are carried by the same message, and the access message 1 and the access message 3 are carried by the same message.

[0271] It can also be understood that steps S601 and S604 are performed as one step, and steps S603 and S605 are performed as two steps.

[0272] In the two-step random access scenario, the specific implementation steps include:

[0273] S601: The network device sends configuration information 3 to the terminal device.

[0274] S604: The network device sends access message 2 to the terminal device.

[0275] The network device sends configuration information 3 to the terminal device to indicate the RACH resource set #1, and the network device sends access message 2 to the terminal device to indicate the uplink grant resource.

[0276] It should be understood that the specific implementation of S601 and S604, and the specific role of configuration information 3 and access message 2 are similar to the above implementation manners, and for the sake of brevity, the present application will not be repeated here.

[0277] It should be understood that in this specific implementation, configuration information 3 is a specific implementation of the first configuration information in the above embodiments of the present application; and access message 2 is a specific implementation of the second information in the above embodiments of the present application.

[0278] S603: The terminal device sends access message 1 to the network device.

[0279] S605: The terminal device sends access message 3 to the network device.

[0280] The terminal device sends access message 1 through the RACH resource set #1, and the access message 1 includes a random access preamble; the terminal device sends access message 3 through the uplink grant resource, and the access message 3 includes an L1 measurement result.

[0281] The network device determines that the terminal device carries the measurement result in the uplink grant resource by receiving the random access preamble carried by the RACH resource set #1, so that the content in the uplink resource can be correctly decoded.

[0282] It should be understood that the specific implementation of S603 and S605, and the specific role of access message 1 and access message 3 are similar to the above implementation manners, and for the sake of brevity, the present application will not be repeated here.

[0283] It should be understood that in this specific implementation, access message 1 is a specific implementation of the first information in the above embodiments of the present application; and access message 3 is a specific implementation of the third information in the above embodiments of the present application.

[0284] In another optional implementation, the network device does not allocate a special set of RACH resources for the terminal device, and the terminal device initiates random access after evaluating that the L1 measurement reporting event is satisfied / triggered. As an example but not limitation, the terminal device initiated random access is described below in connection with FIG. 7.

[0285] FIG. 7 is a schematic diagram of another communication method according to an embodiment of the present application.

[0286] S701: The terminal device performs L1 measurement and evaluates whether the reporting condition is satisfied.

[0287] The terminal device evaluates whether the L1 measurement reporting event is satisfied / triggered, and if the terminal device determines that the reporting condition is satisfied / triggered, the terminal device further determines whether there is available PUCCH resource.

[0288] In a specific implementation, the terminal device has available PUCCH resource, and the terminal device indicates to the network device that the terminal device has L1 measurement results to be reported or that the L1 measurement reporting event is satisfied / triggered through the PUCCH resource.

[0289] In another specific implementation, the terminal device does not have available PUCCH resource, and the terminal device initiates random access through the following steps.

[0290] S702: The terminal device sends random access message 1 to the network device.

[0291] The random access message 1 includes a random access preamble.

[0292] It should be understood that in this specific implementation, the random access message 1 is a specific implementation of the first information in the above-mentioned embodiments of the present application.

[0293] S703: The network device sends random access message 2 to the terminal device.

[0294] The random access message 2 includes a random access response (RAR) message, and the random access message 2 carries uplink grant resource.

[0295] It should be understood that in this specific implementation, the random access message 2 is a specific implementation of the fourth information in the above-mentioned embodiments of the present application, and the uplink grant resource carried in the random access message 2 is a specific implementation of the second uplink resource in the above-mentioned embodiments of the present application.

[0296] S704: The terminal device sends random access message 3 to the network device.

[0297] The terminal device sends the random access message 3 using the uplink grant resource carried in the random access message 2. The random access message 3 carries the indication information 4, which is used to indicate that the terminal device has L1 measurement results to be reported, or the indication information 4 is also used to indicate that the L1 measurement reporting event has been satisfied / triggered.

[0298] In a specific implementation, the indication information 4 is carried in a MAC CE.

[0299] By way of example but not limitation, the MAC CE has no payload part, only a MAC subheader, which carries a logical channel identifier, which is used to indicate that the terminal device has L1 measurement results to be reported, or to indicate that the L1 measurement reporting event has been satisfied / triggered.

[0300] By way of example but not limitation, the MAC CE has both a payload part and a MAC subheader. The MAC subheader carries a logical channel identifier, which is used to indicate that the terminal device has L1 measurement results to be reported, or to indicate that the L1 measurement reporting event has been satisfied / triggered.

[0301] In an optional implementation, the MAC payload part includes the indication information 4, which is used to indicate the content size of the L1 measurement results to be reported by the terminal device, or the number of triggered events. The content size of the L1 measurement results to be reported can also be represented by the number of cells or reference signals corresponding to the L1 measurement results to be reported.

[0302] It should be understood that, in this specific implementation, the random access message 3 is a specific implementation of the fifth information in the above-mentioned embodiments of the present application.

[0303] S705: The network device sends a random access message 4 to the terminal device.

[0304] The random access message 4 includes DCI information, which is used to indicate an uplink grant resource, and is also used to instruct the terminal device to send L1 measurement results using the uplink grant resource.

[0305] When the terminal device receives the uplink grant resource indicated in the random access message 4, and the uplink grant instructs the terminal device to send L1 measurement results, the terminal device considers that the random access procedure is successfully completed, or when the terminal device sends L1 measurement results using the uplink grant, the terminal device considers that the random access procedure is successfully completed.

[0306] In an optional implementation, when the terminal device receives the uplink grant resource indicated in the random access message 4 for sending the L1 measurement result, or uses the uplink grant to send the L1 measurement result, the terminal device considers that the L1 measurement event is no longer in the triggered state (or referred to as cancel triggering), avoiding triggering and re-reporting again.

[0307] It should be understood that, in this specific implementation, the random access message 4 is a specific implementation of the second information in the above-mentioned embodiments of the application.

[0308] S706: The terminal device sends the measurement result information 3 to the network device.

[0309] The terminal device sends the L1 measurement result using the uplink grant resource in step S705.

[0310] In another optional implementation, after the terminal device sends the L1 measurement result, the terminal considers that the L1 measurement event is no longer in the triggered state (or referred to as cancel triggering), avoiding triggering and re-reporting again.

[0311] It should be understood that, in this specific implementation, the measurement result information 3 is a specific implementation of the third information in the above-mentioned embodiments of the application.

[0312] Through the above steps, the terminal device can timely report the L1 measurement result to the network device in the scenario where no PUCCH resource is available, so that the network device judges whether to perform beam switching or cell switching, avoiding beam failure or switching failure.

[0313] In some specific implementations, the network device in the application can be a CU-DU separated architecture. The specific implementation under the separated architecture is described below by means of FIG. 8.

[0314] By way of example and not limitation, taking the communication method described in FIG. 6 as an example, FIG. 8 shows a specific implementation of the network device using the separated architecture in the communication method.

[0315] FIG. 8 shows a schematic diagram of a network device of a separated architecture performing the communication method provided by the embodiments of the application.

[0316] Before the step S601 in FIG. 6 is performed, the network device will perform S801.

[0317] S801: The DU sends the resource division information 1 to the CU.

[0318] The DU divides the RACH resource and sends the division result to the CU.

[0319] As an example but not limitation, the DU divides RACH resource set #1 from RACH resource set #2. Wherein, the RACH resource set #2 is all RACH resources available to the terminal device in the current serving gNB (or the current serving cell, or the current serving DU). The RACH resource set #1 is a subset of the RACH resource set #2.

[0320] S802: The CU sends the configuration information 3 to the DU, and the DU sends the configuration information 3 to the terminal device.

[0321] It should be understood that S802 is consistent with S601, and the network device sends the configuration information 3 to the terminal device. In the split structure, the CU sends the configuration information 3 to the DU, and the DU forwards it to the terminal device. The configuration information 3 is used to indicate the division configuration of the RACH resource.

[0322] It should be understood that the steps of S603 to S607 in FIG. 6 are the interaction between the terminal device and the DU under the CU-DU split architecture, which will not be repeated here.

[0323] It should be understood that FIG. 7 shows the interaction between the terminal device and the DU in the communication method when the network device adopts the split architecture, which will not be repeated here.

[0324] It should be understood that the implementation of other communication methods under the split architecture is similar to that shown in FIG. 8, and for the sake of brevity, it will not be repeated here.

[0325] Under the split architecture, the terminal device can timely report the L1 measurement result to the DU of the network device in the scenario where there is no available PUCCH resource, so that the DU of the network device judges whether beam switching or cell switching is needed, thereby avoiding beam failure or switching failure.

[0326] It can be understood that each embodiment described in the present application can be an independent scheme, or can be combined according to the internal logic, and these schemes all fall within the protection scope of the present application. And the explanation or description of each term appearing in the embodiments can be mutually referenced or explained in each embodiment, which is not limited.

[0327] The communication method side embodiments of the present application are described in detail above in combination with FIGS. 1 to 8, and the communication device side embodiments of the present application will be described in detail below in combination with FIGS. 9 to 10. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments, and therefore, the parts not described in detail can be referred to the foregoing method embodiments.

[0328] FIG. 9 is a schematic block diagram of a communication device 1000 according to an embodiment of the present application.

[0329] The communication apparatus 1000 can include a transceiver 1010 and a processing unit 1020, the transceiver 1010 can be configured to implement corresponding functions of communication. The transceiver 1010 can also be referred to as a communication interface or a communication unit. The processing unit 1020 can be configured to determine resources and generate information. Optionally, the transceiver 1010 can include a receiving unit and a sending unit, the receiving unit is configured to implement the function of receiving, and the sending unit is configured to implement the function of sending.

[0330] Optionally, the communication apparatus 1000 can also include a storage unit, which can be configured to store instructions and / or data, and the processing unit 1020 can read the instructions and / or data in the storage unit to enable the device to implement the foregoing method embodiments.

[0331] The communication apparatus 1000 can be a terminal device in the foregoing method embodiments, or a chip for implementing the functions of the terminal device in the foregoing method embodiments. It should be understood that the communication apparatus 1000 can correspond to the terminal device in the implementation manners described in FIGS. 5 to 8 of the present application, and the communication apparatus 1000 can perform the steps corresponding to the terminal device in the implementation manners described in FIGS. 5 to 8 of the present application.

[0332] In a possible design, the processing unit 1020 is configured to select a first resource set; the processing unit 1020 is configured to perform physical layer measurement; the processing unit 1020 is configured to determine whether there is a measurement result to be reported or an event triggered; the processing unit 1020 is configured to determine whether there is an available physical uplink control channel resource; the transceiver 1010 can be configured to receive first configuration information from a network device; the transceiver 1010 is further configured to send first information through the first resource set; the transceiver 1010 is further configured to receive second information from the network device; the transceiver 1010 is further configured to send third information through a first uplink resource; the transceiver 1010 is further configured to receive fourth information from the network device; and the transceiver 1010 is further configured to send fifth information through a second uplink resource.

[0333] The communication apparatus 1000 can be a network device in the foregoing method embodiments, or a chip for implementing the functions of the network device in the foregoing method embodiments. It should be understood that the communication apparatus 1000 can correspond to the network device in the implementation manners described in FIGS. 5 to 8 of the present application, and the communication apparatus 1000 can perform the steps corresponding to the network device in the implementation manners described in FIGS. 5 to 8 of the present application.

[0334] In a possible design, the transceiver 1010 is configured to send first configuration information to the terminal device, and the transceiver 1010 is also configured to receive first information from the terminal device; the transceiver 1010 is also configured to send second information to the terminal device; the transceiver 1010 is also configured to receive third information from the terminal device; the transceiver 1010 is also configured to send fourth information to the terminal device; the transceiver 1010 is also configured to receive fifth information from the terminal device; the processing unit 1020 is configured to determine that the terminal device has a measurement result to be reported or has an event triggered; the processing unit 1020 is configured to determine the division of the first resource set; the processing unit 1020 is configured to determine the first uplink resource; and the processing unit 1020 is configured to determine the second uplink resource.

[0335] It should also be understood that the communication apparatus 1000 herein is embodied in the form of a functional unit. The term “unit” herein can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (for example, a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combination of logic circuit and / or other suitable components that support the described functions.

[0336] The communication apparatus 1000 of each of the above-described solutions has the function of implementing the corresponding steps performed by the terminal device or the network device in the above-described methods. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor, which respectively performs the transceiving operations and related processing operations in each method embodiment.

[0337] In addition, the transceiver 1010 described above can also be a transceiver circuit (for example, can include a receiving circuit and a sending circuit), and the processing unit 1020 can be a processing circuit.

[0338] FIG. 10 is a schematic block diagram of a communication apparatus 2000 provided by an embodiment of the present application.

[0339] As shown in FIG. 10, the communication apparatus 2000 can include a processor 2010.

[0340] Optionally, the apparatus 2000 further includes a transceiver 2020 for receiving and / or transmitting signals. For example, the processor 2010 is configured to control the transceiver 2020 to receive and / or transmit signals. Optionally, the transceiver 2020 can include a receiver and a transmitter. The receiver is configured to receive signals. The transmitter is configured to transmit signals.

[0341] The processor 2010 can be coupled to a memory 2030. The memory 2030 is configured to store computer programs or instructions and / or data. The processor 2010 is configured to execute the computer programs or instructions stored in the memory 2030, or read the data stored in the memory 2030, to perform the methods in the above method embodiments.

[0342] Optionally, the processor 2010 is one or more.

[0343] Optionally, the memory 2030 is one or more.

[0344] Optionally, the memory 2030 is integrated with the processor 2010, or is separately arranged.

[0345] For example, the processor 2010 can have the functions of the processing unit 1020 shown in FIG. 9. The memory 2030 can have the functions of a storage unit. The transceiver 2020 can have the functions of the transceiving unit 1010 shown in FIG. 9.

[0346] For example, the communication apparatus 2000 can be configured to implement the operations performed by a terminal device in the above method embodiments.

[0347] In a possible design, the processor 2010 is configured to select a first resource set; the processor 2010 is configured to perform physical layer measurement; the processor 2010 is configured to determine whether there is a measurement result to be reported or an event triggered; the processor 2010 is configured to determine whether there is an available physical uplink control channel resource; the transceiver 2020 is configured to receive first configuration information from a network device; the transceiver 2020 is further configured to send first information through the first resource set; the transceiver 2020 is further configured to receive second information from the network device; the transceiver 2020 is further configured to send third information through a first uplink resource; the transceiver 2020 is further configured to receive fourth information from the network device; and the transceiver 2020 is further configured to send fifth information through a second uplink resource.

[0348] For example, the communication apparatus 2000 can be further configured to implement the operations performed by a network device in the above method embodiments.

[0349] In a possible design, the transceiver 2020 is configured to send first configuration information to the terminal device, and the transceiver 2020 is also configured to receive first information from the terminal device; the transceiver 2020 is also configured to send second information to the terminal device; the transceiver 2020 is also configured to receive third information from the terminal device; the transceiver 2020 is also configured to send fourth information to the terminal device; the transceiver 2020 is also configured to receive fifth information from the terminal device; the processor 2010 is configured to determine that the terminal device has a measurement result to be reported or has an event triggered; the processor 2010 is configured to determine a division of a first resource set; the processor 2010 is configured to determine a first uplink resource; and the processor 2010 is configured to determine a second uplink resource.

[0350] It should be understood that the specific processes of the transceiver and the processor performing the corresponding steps described above have been described in detail in the method embodiments, and thus are not described herein again for the sake of brevity.

[0351] Embodiments of the present application further provide a processor, which is configured to execute computer programs or instructions stored in a memory, or read data / signaling stored in the memory, to perform the methods in the method embodiments.

[0352] Embodiments of the present application further provide a chip, which includes a processor and a communication interface, and the processor reads instructions stored in a memory through the communication interface, to perform the methods provided in the embodiments.

[0353] Embodiments of the present application further provide a computer readable storage medium, which stores computer instructions for implementing the methods performed by the devices in the method embodiments.

[0354] For example, the computer program is executed by a computer, so that the computer can implement the methods performed by the terminal device or the network device in the method embodiments.

[0355] Embodiments of the present application further provide a computer program product, which includes instructions, and the instructions are executed by a computer to implement the methods performed by the terminal device or the network device in the method embodiments.

[0356] Embodiments of the present application further provide a communication system, which includes the terminal device and the network device in any of the embodiments.

[0357] Those skilled in the art can clearly understand 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 performed 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 implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0358] 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 repeated here.

[0359] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0360] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0361] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0362] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0363] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, The method is applied to a terminal device and includes: Receive first configuration information, which is used to indicate the division of a first resource set; The first information is sent through the Random Access Channel (RACH) resource in the first resource set to indicate that the terminal device has measurement results to be reported or that an event has been triggered on the terminal device. The first information includes a random access preamble. Receive second information, the second information being used to indicate the first uplink resources available to the terminal device; The third information, including the measurement result, is transmitted through the first uplink resource.

2. The method according to claim 1, characterized in that, The first resource set is a subset of the second resource set, which includes all RACH resources that the terminal device can use in the current serving cell, and there is no overlap between all subsets of the second resource set.

3. The method according to claim 1 or 2, characterized in that, Before sending the first information, the method further includes: The first resource set is selected based on the information size of the third information or the measurement result.

4. The method according to any one of claims 1 to 3, characterized in that, The first configuration information includes at least one of the following: The random access preamble, the time-domain location of the random access, the frequency-domain location of the random access, and the identifier used to indicate the timing of the random access.

5. A communication method, characterized in that, The method is applied to a terminal device and includes: Send first information, the first information including a random access preamble; Receive fourth information, the fourth information being used to indicate the second uplink resource available to the terminal device. The fifth information is sent through the second uplink resource. The fifth information is used to indicate that the terminal device has measurement results to be reported or to indicate that the terminal device has an event triggered. Receive second information, the second information being used to indicate the first uplink resources available to the terminal device; The third information, including the measurement result, is transmitted through the first uplink resource.

6. The method according to claim 5, characterized in that, The fifth piece of information is also used to indicate the information size of the measurement result.

7. The method according to claim 5 or 6, characterized in that, The second information is also used to instruct the terminal device to send the third information using the first uplink resource.

8. The method according to any one of claims 5 to 7, characterized in that, Before sending the first information, the method further includes: It is determined that the terminal device has measurement results to be reported or an event has been triggered, and the terminal device currently has no available Physical Uplink Control Channel (PUCCH) resources.

9. A communication method, characterized in that, The method is applied to network devices, including: Send first configuration information, which is used to indicate the division of the first resource set; Receive first information, the first information including the random access preamble of the terminal device; Based on the first information carried by the Random Access Channel (RACH) resources in the first resource set, it is determined whether the terminal device has measurement results to be reported or whether the terminal device has triggered an event. Send a second message, the second message being used to indicate the first uplink resource available to the terminal device; Receive third information, the third information including the measurement result, the third information being carried by the first uplink resource.

10. The method according to claim 9, characterized in that, The first resource set is a subset of the second resource set, which includes all RACH resources that the terminal device can use in the current serving cell, and there is no overlap between all subsets of the second resource set.

11. The method according to claim 9 or 10, characterized in that, The first configuration information is also used to instruct the terminal device to select the first resource set and send the first information based on the information size of the third information or the measurement result.

12. The method according to any one of claims 9 to 11, characterized in that, The first configuration information includes at least one of the following: The random access preamble, the time-domain location of the random access, the frequency-domain location of the random access, and the identifier used to indicate the timing of the random access.

13. The method according to any one of claims 9 to 12, characterized in that, Before sending the second information, the method further includes: Based on the first resource set, the first uplink resource is determined, and there is a corresponding relationship between the first resource set and the first uplink resource.

14. A communication method, characterized in that, The method is applied to network devices, including: Receive first information, the first information including the random access preamble of the terminal device; Send a fourth message, the fourth message being used to indicate the second uplink resource available to the terminal device. The fifth information is received, which is used to indicate that the terminal device has measurement results to be reported or to indicate that an event has been triggered on the terminal device. The fifth information is carried by the second uplink resource. Send a second message, the second message being used to indicate the first uplink resource available to the terminal device; Receive third information, the third information including the measurement result, the third information being carried by the first uplink resource.

15. The method according to claim 14, characterized in that, The fifth piece of information is also used to indicate the information size of the measurement result.

16. The method according to claim 14 or 15, characterized in that, Before sending the second information, the method further includes: Based on the fifth piece of information, the first uplink resource is determined, and there is a corresponding relationship between the fifth piece of information and the first uplink resource.

17. The method according to any one of claims 14 to 16, characterized in that, The second information is also used to instruct the terminal device to send the third information using the first uplink resource.

18. A communication method, characterized in that, The method is applied to a terminal device and includes: If the terminal device has measurement results to be reported or an event has been triggered, and the terminal device currently has no available Physical Uplink Control Channel (PUCCH) resources, the terminal device initiates random access.

19. The method according to claim 18, characterized in that, The terminal device initiates random access, including: Send first information, the first information including a random access preamble; Receive fourth information, the fourth information being used to indicate the second uplink resource available to the terminal device. The fifth information is sent through the second uplink resource. The fifth information is used to indicate that the terminal device has measurement results to be reported or to indicate that the terminal device has an event triggered. Receive second information, the second information being used to indicate the first uplink resources available to the terminal device; The third information, including the measurement result, is transmitted through the first uplink resource.

20. The method according to claim 19, characterized in that, The fifth piece of information is also used to indicate the information size of the measurement result.

21. The method according to claim 19 or 20, characterized in that, The second information is also used to instruct the terminal device to send the third information using the first uplink resource.

22. The method according to claim 18, characterized in that, Before the terminal device initiates random access, the method further includes: Receive first configuration information, which is used to indicate the division of a first resource set.

23. The method according to claim 22, characterized in that, The terminal device initiates random access, including: First information is transmitted through the Random Access Channel (RACH) resource in the first resource set, and the first information includes a random access preamble. Receive second information, the second information being used to indicate the first uplink resources available to the terminal device; The third information, including the measurement result, is transmitted through the first uplink resource.

24. The method according to claim 23, characterized in that, The first resource set is a subset of the second resource set, which includes all RACH resources that the terminal device can use in the current serving cell, and there is no overlap between all subsets of the second resource set.

25. The method according to claim 23 or 24, characterized in that, Before sending the first information, the method further includes: The first resource set is selected based on the information size of the third information or the measurement result.

26. The method according to any one of claims 22-25, characterized in that, The first configuration information includes at least one of the following: The random access preamble, the time-domain location of the random access, the frequency-domain location of the random access, and the identifier used to indicate the timing of the random access.

27. A communication device, characterized in that, It includes modules or units for performing the method of any one of claims 1 to 4, modules or units for performing the method of any one of claims 5 to 8, modules or units for performing the method of any one of claims 9 to 13, modules or units for performing the method of any one of claims 14 to 17, or modules or units for performing the method of any one of claims 18 to 26.

28. A communication device, characterized in that, The device includes a processor coupled to a memory storing instructions which, when executed by the processor, cause the communication device to perform the method as claimed in any one of claims 1 to 4, any one of claims 5 to 8, any one of claims 9 to 13, or any one of claims 14 to 17, or any one of claims 18 to 26.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the computer to perform the method as claimed in any one of claims 1 to 4, the method as claimed in any one of claims 5 to 8, the method as claimed in any one of claims 9 to 13, the method as claimed in any one of claims 14 to 17, or the method as claimed in any one of claims 18 to 26.

30. A computer program product, characterized in that, When the computer program product is run on a computer, it causes the computer to perform the method as described in any one of claims 1 to 4, the method as described in any one of claims 5 to 8, the method as described in any one of claims 9 to 13, the method as described in any one of claims 14 to 17, or the method as described in any one of claims 18 to 26.

31. A chip system, characterized in that, The chip system includes a processor, a memory, and input / output ports. The memory stores computer programs; the processor executes the computer programs stored in the memory. So that the processor performs the method as described in any one of claims 1 to 4, the method as described in any one of claims 5 to 8, or the method as described in any one of claims 18-26; or, So that the processor performs the method as described in any one of claims 9 to 13 or the method as described in any one of claims 14 to 17.

32. A network system, characterized in that, The network system includes: the network device as described in any one of claims 9-13.

33. The network system according to claim 32, characterized in that, The network system further includes: a terminal device as described in any one of claims 1-4.

34. A network system, characterized in that, The network system includes: the network device as described in any one of claims 14-17.

35. The network system according to claim 34, characterized in that, The network system further includes: a terminal device as described in any one of claims 5-8.

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