Communication methods, communication devices, communication system, storage medium, and program product

Abstract

The present disclosure relates to communication methods, communication devices, a communication system, a storage medium, and a program product. A communication method may be executed by a terminal. The method comprises: receiving a first reference signal sent by a network device, wherein the first reference signal is used by the terminal to execute measurements of a plurality of Layer 1 (L1) measurement types; and sending a first report to the network device, wherein the first report comprises measurement results for the plurality of L1 measurement types. Thus, unified configuration and reporting for a plurality of L1 measurement tasks are implemented, thereby reducing repeated configuration and resource overhead, and improving the measurement efficiency.

Description

Communication methods, communication equipment, communication systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, communication devices, communication systems, storage media, and program products. Background Technology

[0002] In communication systems, various measurement types, namely various measurement configurations and procedures, are defined to monitor link quality, beam quality, beam failure, and new beam discovery. Examples include wireless link monitoring, beam reporting, beam failure detection, and candidate beam detection. Summary of the Invention

[0003] This disclosure provides communication methods, communication devices, communication systems, storage media, and program products.

[0004] According to a first aspect of the embodiments of this disclosure, a communication method is provided, executed by a terminal, the method comprising:

[0005] The terminal receives a first reference signal sent by a network device, the first reference signal being used by the terminal to perform measurements of multiple layer 1 (L1) measurement types.

[0006] A first report is sent to the network device, the first report including measurement results of various L1 measurement types.

[0007] According to a second aspect of the embodiments of this disclosure, a communication method is provided, performed by a network device, the method comprising:

[0008] Send a first reference signal to the terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types;

[0009] The terminal sends a first report, which includes measurement results of various L1 measurement types.

[0010] According to a third aspect of the present disclosure, a communication device is provided, comprising:

[0011] The transceiver module is used to receive a first reference signal sent by the network device, the first reference signal being used by the terminal to perform measurements of various Layer 1 (L1) measurement types;

[0012] The transceiver module is also configured to send a first report to the network device, the first report including measurement results of various L1 measurement types.

[0013] According to a fourth aspect of the embodiments of this disclosure, a communication device is provided, comprising:

[0014] The transceiver module is used to send a first reference signal to the terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types;

[0015] The transceiver module is also used to receive a first report sent by the terminal, the first report including measurement results of various L1 measurement types.

[0016] According to a fifth aspect of the embodiments of this disclosure, a communication device is provided, comprising:

[0017] One or more processors;

[0018] The communication device is used to perform the communication method described in the first or second aspect.

[0019] According to a sixth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method described in the first aspect, and the network device is configured to implement the communication method described in the second aspect.

[0020] According to a seventh aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform the communication method as described in the first or second aspect.

[0021] According to an eighth aspect of the present disclosure, a computer program product is provided, comprising a computer program and / or instructions that, when executed by a communication device, implement the communication method as described in the first or second aspect.

[0022] In the above embodiments, the terminal receives a first reference signal sent by the network device, performs measurements of various L1 measurement types, and sends a first report containing various measurement results to the network device. This realizes unified configuration and reporting of various L1 measurement tasks, reduces redundant configuration and resource overhead, and improves measurement efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0024] Figure 1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0025] Figure 2 is an exemplary interaction diagram of the communication method provided according to an embodiment of the present disclosure.

[0026] Figure 3A is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0027] Figure 3B is an exemplary interaction diagram of the communication method provided according to an embodiment of the present disclosure.

[0028] Figure 3C is an exemplary interaction diagram of the communication method provided according to an embodiment of the present disclosure.

[0029] Figure 4 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0030] Figure 5A is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0031] Figure 5B is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0032] Figure 6A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0033] Figure 6B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0034] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0035] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal, the method comprising:

[0036] The terminal receives a first reference signal sent by a network device, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types.

[0037] A first report is sent to the network device, the first report including measurement results of various L1 measurement types.

[0038] In the above embodiments, the terminal receives a first reference signal sent by the network device, performs measurements of various L1 measurement types, and sends a first report containing various measurement results to the network device. This realizes unified configuration and reporting of various L1 measurement tasks, reduces redundant configuration and resource overhead, and improves measurement efficiency.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the L1 measurement type includes at least one of the following:

[0040] Beam reporting; beam failure detection (BFD); candidate beam detection (CBD) for recovering from beam failure; radio link monitoring (RLM).

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the first report includes at least one of the following:

[0042] The first index is used to indicate the index of the optimal N beams;

[0043] The first measurement value is used to indicate the measurement value corresponding to the optimal N beams;

[0044] The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period;

[0045] The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period;

[0046] The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period;

[0047] The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period;

[0048] The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH).

[0049] The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period;

[0050] The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

[0051] In the above embodiments, multi-dimensional measurement information is provided, and real-time measurement values ​​and predictive indicators are integrated in the report to improve the proactive management capabilities of the network side.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the first reference signal includes at least one set of reference signals, and / or one or more second reference signals;

[0053] Each set of reference signals is used by the terminal to perform one or more of the L1 measurement types, and each of the second reference signals is used by the terminal to perform one of the L1 measurement types.

[0054] In the above embodiments, a flexible reference signal configuration strategy is proposed, which takes into account both resource sharing and task independence, and effectively avoids the problem of redundant resource configuration.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the first reference signal includes at least one of the following:

[0056] A first set of reference signals is used by the terminal to perform beam reporting and candidate beam detection for recovering beam failures;

[0057] The second set of reference signals is used by the terminal to perform beam failure detection and wireless link monitoring.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the first report includes one or more sub-reports, each sub-report corresponding to at least one of the L1 measurement types, and sending the first report to the network device includes:

[0059] Each of the sub-reports is sent to the network device respectively.

[0060] In the above embodiments, the separate transmission of sub-reports allows the network side to obtain detailed information on different measurement types as needed, reducing data redundancy and improving the flexibility and efficiency of reporting.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0062] Receive first information sent by the network device, the first information being used to indicate at least one of the following:

[0063] Configuration information of the first reference signal;

[0064] The method of submitting the first report;

[0065] The first report includes the measurement results.

[0066] In the above embodiments, the network side can dynamically adjust the reference signal configuration, reporting method and content to adapt to different scenario requirements and improve the scalability and adaptability of the system.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the reporting method of the first report includes at least one of the following: periodic reporting; non-periodic reporting; and event-based reporting.

[0068] In the above embodiments, three reporting modes are supported: periodic, non-periodic, and event-triggered, which meet the balance between real-time performance, reliability, and resource efficiency, and improve the flexibility and efficiency of reporting.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the event used to trigger the event-based reporting includes at least one of the following:

[0070] The terminal determines that the measured value of the currently measured beam is lower than a first threshold.

[0071] The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold.

[0072] The terminal determines that the measured values ​​of all beams are below the third threshold.

[0073] After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the first threshold is higher than a measurement threshold used for beam failure monitoring; and / or,

[0075] The second threshold is higher than the measurement threshold used for beam failure monitoring; and / or,

[0076] The third threshold is higher than the measurement threshold used for wireless link monitoring; and / or,

[0077] The fourth threshold is lower than the measurement threshold used for candidate beam monitoring.

[0078] In the above embodiments, an event-triggered mechanism can be used to provide early warning of beam failure or link failure, thereby reducing downtime and improving the reliability and stability of the system.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0080] The measurement results included in the first report are determined based on the event that triggered the event-based reporting.

[0081] In the above embodiments, the reported content can be dynamically adjusted according to the triggering event, reducing invalid data transmission and improving the efficiency and relevance of the reporting.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, the first report is used to determine whether at least one of the following needs to be performed: beam handover; cell handover.

[0083] In the above embodiments, the system can determine whether the terminal needs to perform cell handover or beam switching based on the first report, which effectively improves the reliability and stability of communication.

[0084] Secondly, embodiments of this disclosure provide a communication method executed by a network device, the method comprising:

[0085] Send a first reference signal to the terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types;

[0086] The terminal sends a first report, which includes measurement results of various L1 measurement types.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the L1 measurement type includes at least one of the following:

[0088] Beam reporting; Beam Failure Detection (BFD); Candidate Beam Detection (CBD) for recovering from beam failure; Radio Link Monitoring (RLM).

[0089] In conjunction with some embodiments of the second aspect, in some embodiments, the first report includes at least one of the following:

[0090] The first index is used to indicate the index of the optimal N beams;

[0091] The first measurement value is used to indicate the measurement value corresponding to the optimal N beams;

[0092] The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period;

[0093] The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period;

[0094] The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period;

[0095] The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period;

[0096] The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH);

[0097] The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period;

[0098] The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, the first reference signal includes at least one set of reference signals and one or more second reference signals;

[0100] Each set of reference signals is used by the terminal to perform one or more of the L1 measurement types, and each of the second reference signals is used by the terminal to perform one of the L1 measurement types.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the first reference signal includes at least one of the following:

[0102] A first set of reference signals is used by the terminal to perform beam reporting and candidate beam detection for recovering beam failures;

[0103] The second set of reference signals is used by the terminal to perform beam failure detection and wireless link monitoring.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the first report includes one or more sub-reports, each sub-report corresponding to at least one of the L1 measurement types, and receiving the first report sent by the terminal includes:

[0105] Each of the sub-reports is sent to the network device.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, the method includes:

[0107] Send a first message to the terminal, the first message being used to indicate at least one of the following:

[0108] Configuration information of the first reference signal;

[0109] The method of submitting the first report;

[0110] The first report includes the measurement results.

[0111] In conjunction with some embodiments of the second aspect, in some embodiments, the reporting method of the first report includes at least one of the following: periodic reporting; non-periodic reporting; and event-based reporting.

[0112] In conjunction with some embodiments of the second aspect, in some embodiments, the event used to trigger the event-based reporting includes at least one of the following:

[0113] The terminal determines that the measured value of the currently measured beam is lower than a first threshold.

[0114] The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold.

[0115] The terminal determines that the measured values ​​of all beams are below the third threshold.

[0116] After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

[0117] In conjunction with some embodiments of the second aspect, in some embodiments, the first threshold is higher than a measurement threshold used for beam failure monitoring; and / or,

[0118] The second threshold is higher than the measurement threshold used for beam failure monitoring; and / or,

[0119] The third threshold is higher than the measurement threshold used for wireless link monitoring; and / or,

[0120] The fourth threshold is lower than the measurement threshold used for candidate beam monitoring.

[0121] In conjunction with some embodiments of the second aspect, in some embodiments, the measurement results included in the first report are determined based on the event that triggered the event-based reporting.

[0122] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0123] Based on the first report, determine whether to instruct the terminal to perform at least one of the following:

[0124] Beam switching; cell switching.

[0125] Thirdly, embodiments of this disclosure provide a communication device, including:

[0126] The transceiver module is used to receive a first reference signal sent by the network device, the first reference signal being used by the terminal to perform measurements of various Layer 1 (L1) measurement types;

[0127] The transceiver module is also configured to send a first report to the network device, the first report including measurement results of various L1 measurement types.

[0128] Fourthly, embodiments of this disclosure provide a communication device, comprising:

[0129] The transceiver module is used to send a first reference signal to the terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types;

[0130] The transceiver module is also used to receive a first report sent by the terminal, the first report including measurement results of various L1 measurement types.

[0131] Fifthly, embodiments of this disclosure provide a communication device, comprising:

[0132] One or more processors;

[0133] The communication device is used to perform the communication method described in the first or second aspect.

[0134] In a sixth aspect, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to implement the communication method described in the first aspect, and the network device is configured to implement the communication method described in the second aspect.

[0135] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method described in the first or second aspect.

[0136] Eighthly, embodiments of this disclosure provide a computer program product, including a computer program and / or instructions, which, when executed by a communication device, implement the communication method described in the first or second aspect.

[0137] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0138] This disclosure presents a communication method. In some embodiments, the terms "communication method" and "information processing method," "session establishment method," etc., may be used interchangeably.

[0139] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0140] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0141] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0142] In the embodiments disclosed herein, "multiple" refers to two or more.

[0143] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0144] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0145] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0146] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0147] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0148] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0149] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0150] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0151] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0152] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0153] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0154] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0155] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0156] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0157] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0158] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0159] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0160] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102. In some embodiments, the network device 102 may include an access network device and a core network device.

[0161] In some embodiments, terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0162] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.

[0163] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0164] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0165] In some embodiments, the core network equipment can be a single device, multiple devices, or a group of devices. Network elements can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0166] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0167] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0168] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0169] In some embodiments, various measurement configurations and procedures are defined in a communication system for monitoring link quality, beam quality, beam failure, and discovering new beams, including but not limited to:

[0170] Radio link monitoring (RLM) is configured via the RadioLinkMonitoring RS field.

[0171] Beam reporting is configured via the CSI-configure field;

[0172] Beam failure detection (BFD) is configured via the failureDetectionResourcesToAddModeList field;

[0173] Candidate beam detection (CBD) is configured via the candidateBeamRSList field.

[0174] In some embodiments, the network is configured with multiple L1 measurement types individually:

[0175] For Beam reporting, the process is that the UE performs Layer 1 Reference Signal Received Power (L1-RSRP) measurement based on the reference signal configured by the network, and then the UE reports the best few beam indices or measurement values.

[0176] The BFD procedure is as follows: the UE performs low-level measurements based on the reference signal set q0 configured by the network. When the beam radio link quality of all resources in q0 is lower than the threshold Qout, a beam failure is considered to have occurred. The L1 reports a beam failure indication to the MAC and the BFI COUNTER++.

[0177] When a beam failure instance indication is reported from the underlying layer, the BeamFailureDetectionTimer will be started, and the BFI counter will be set to 1. If the beamFailureInstanceMaxCount is reached before the BeamFailureDetectionTimer expires, it is considered a beam failure, and then the beam failure recovery (BFR) process is triggered.

[0178] For BFR, when beam failure occurs in the Pcell, the UE triggers BFR by performing a random access (RA) procedure on the Pcell; the UE needs to perform CBD to achieve BFR; after the RA procedure is completed, BFR in the Pcell is considered complete.

[0179] When BFD occurs in the Scell, the UE triggers BFR by sending a BFR MAC CE; the UE then selects an available beam for the Scell ​​and includes this information in the BFR MAC CE and sends it to the NW; once the PDCCH receives a new transmission UL grant for sending the BFR MAC CE, the BFR of the Scell ​​is considered complete.

[0180] For Radio Link Monitoring (RLM), RLM primarily monitors downlink quality based on reference signals, such as synchronization signals, Physical Broadcast Channel (PBCH) blocks (SSBs), and Channel State Information-Reference Signals (CSI-RS). The UE performs monitoring according to the RLM-RS resources configured by the network. If multiple measurement signals fall below a certain threshold, the physical layer will send a Radio Link Monitoring Out of Synchronization (RLM OOS) signal to the higher layers.

[0181] In some embodiments, the BFD process is as follows: the UE performs L1 measurement based on the reference signal set q0 configured by the network. When the beam radio link quality of all resources in q0 is lower than the threshold Qout, a beam failure is considered to have occurred. The L1 reports a beam failure indication to the MAC, and the BFI COUNTER++. When a beam failure instance indication is reported from the underlying layer, the BeamFailureDetectionTimer is started, and the BFI counter is recorded as 1. If the beamFailureInstanceMaxCount is reached before the BeamFailureDetectionTimer expires, a beam failure is considered, and then the BFR process is triggered.

[0182] Several problems exist in the above embodiments:

[0183] Question 1: The network side configures multiple L1 measurement processes separately. For example, the network side configures independent reference signals for beam reporting, BFD, CBD, and RLM. However, these measurement tasks are similar, leading to potential overlap in measurement resources. Therefore, configuring multiple sets of resources, i.e., multiple reference signals, is unnecessary. For instance, beam reporting and beam failure detection might use the same or similar set of reference signals, resulting in duplicated time-frequency resources, increasing configuration complexity and signaling overhead. Similarly, beam monitoring for beam reporting and beam recovery overlaps, both aiming to find and report good beams, increasing signaling overhead. Furthermore, beam failure and link failure processes are also repetitive; link failure is a larger set of beam failures, and link failure can occur when all beams are potentially at risk. Therefore, a unified design for the measurement processes of multiple L1 measurement tasks is recommended.

[0184] Question 2: The beam failure / recovery monitoring process cannot monitor beam changes in real time. If the RS to be monitored during BFD is semi-statically configured with Radio Resource Control (RRC), the reference signal configured by RRC cannot be updated synchronously with the Transmission Configuration Indicator (TCI state) in real time. Therefore, it cannot promptly reflect changes in the currently used beam. The beam currently activated by the TCI state may have changed, but the RRC configuration remains unchanged, and the UE is still monitoring the old TCI state. Furthermore, if BFD does not configure an RS, the UE will monitor the TCI state corresponding to the default PDCCH, but the quality of this TCI state is not reported to the network side in a timely manner. It can only passively wait for beam failure to occur before initiating the BFR process. The RS corresponding to the candidate beam used in the BFR process is also semi-statically configured with RRC; similarly, it cannot reflect the candidate beam to be examined in real time.

[0185] Question 3: Beam reconstruction or cell handover delays are very long. During beam failure detection, UE L1 only sends an indication to the high layer and does not notify the network. After reaching the threshold, BFR is directly initiated, switching to searching for candidate beams, and then the UE initiates the RACH procedure (PCell). Initiating the RACH procedure for reconstruction takes a long time.

[0186] Based on this, the UE can report beams that may experience BFR to the network side in advance, so as to activate the TCI state switch in advance.

[0187] In some embodiments, during routine L1-RSRP measurements and reporting, the UE can simultaneously monitor the status of the RS corresponding to BFD and search for candidate beams, promptly reporting multiple L1 results to the network. If a potential beam failure is detected, the network initiates a TCI state switch procedure to avoid the RACH procedure following BFR. If the UE also detects a potential radio link failure (RLF) or RLM OOS, the UE can also report it promptly, allowing the network to initiate a cell switch procedure in advance to prevent a degradation in UE data reception performance.

[0188] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiments of the present disclosure relate to a communication method, which includes:

[0189] Step S2101: The network device sends the first information to the terminal.

[0190] In some embodiments, the first information is used to indicate at least one of the following: configuration information of the first reference signal; reporting method of the first report; and measurement results included in the first report.

[0191] In some embodiments, the configuration information of the first reference signal can be used by the terminal to receive the first reference signal, measure the first reference signal, and then report it.

[0192] In some embodiments, the configuration information of the first reference signal can be used to indicate which types of L1 measurement types the first reference signal can be used for.

[0193] In some embodiments, the first reference signal is used by the terminal to perform measurements of multiple L1 measurement types. That is, the network device can uniformly configure the reference signal for multiple L1 measurement types, eliminating the need to configure multiple sets of resources for each measurement type, i.e., avoiding the need to send a reference signal for each L1 measurement type. Thus, when the terminal performs various measurement tasks, it can use a uniformly configured reference signal for measurement, eliminating the need for separate configurations for multiple L1 measurement processes and reducing resource overhead.

[0194] For example, if the first reference signal configured by the network device can be used for both beam reporting and candidate beam detection, the terminal can be instructed by the first information, and the first reference signal can be transmitted to the terminal based on the configuration information indicated by the first information, so that the terminal can perform measurements corresponding to beam reporting and candidate beam detection based on the first information. In this way, the network device does not need to configure the reference signal resources separately for beam reporting and candidate beam detection.

[0195] In some embodiments, the configuration information of the first reference signal may include one or more of the following: a resource set of the reference signal, time-frequency domain resources of the reference signal, period of the reference signal, power information of the reference signal, and QCL information of the reference signal. This disclosure does not limit the specific details. For example, a terminal can monitor the first reference signal based on the time-domain position of the first reference signal indicated by the first information, and then obtain the corresponding measurement value by arriving at that time-domain position at the current time.

[0196] In some embodiments, the reporting method of the first report may include at least one of the following: periodic reporting; non-periodic reporting; event-based reporting.

[0197] For example, the network device can instruct the terminal to report periodically via the first information, and it can also instruct the terminal to report based on events. In this case, when the terminal measures the first reference signal according to the configuration information of the first reference signal, it can report the first report periodically, and it can also report the first report when the corresponding event is triggered or the corresponding conditions are met.

[0198] In some embodiments, event-based reporting and condition-based reporting can be interchanged.

[0199] In some embodiments, the event used to trigger the event-based reporting may be referred to as a triggering event. Optionally, the condition used to trigger the condition-based reporting may be referred to as a triggering condition.

[0200] In some embodiments, when the terminal determines that the triggering condition is met, it can determine that a corresponding triggering event has occurred. Optionally, when the terminal determines that a triggering event has occurred, it can determine that the corresponding triggering condition has been met.

[0201] In some embodiments, event-based reporting or condition-based reporting is triggered when a triggering event occurs or when a triggering condition is met.

[0202] In some embodiments, if the first report is reported periodically, the first information can also be used to indicate the period during which the terminal reports the first report.

[0203] In some embodiments, if the reporting method of the first report is non-periodic reporting, the first information can also be used to instruct the terminal to report the time-frequency domain resources of the first report.

[0204] In some embodiments, if the reporting method of the first report is event-based reporting, the first information may also be used to indicate the event that triggers the reporting, such as the index of the event.

[0205] In some embodiments, the first report may include multiple measurement results. Optionally, the first report may include measurement results of multiple L1 measurement types. Optionally, the measurement results included in the first report may be indicated by the network device through the first information. For example, based on the indication of the first information, the terminal may report measurement results corresponding to beam reporting and candidate beam detection, or measurement results corresponding to beam failure detection and wireless link monitoring, etc., through the first report.

[0206] In some embodiments, the network device may indirectly indicate the measurement results included in the first report through the configuration information of the first reference signal. For example, if the first reference signal is only used for measurements corresponding to beam reporting and candidate beam detection, the configuration information of the first reference signal may indirectly indicate that the terminal only reports the measurement results corresponding to beam reporting and candidate beam detection. That is, the first report only includes the measurement results corresponding to beam reporting and candidate beam detection.

[0207] In some embodiments, the name of the first information is not limited, and it may be, for example, "reference signal configuration", "reporting configuration", etc.

[0208] In some embodiments, the name of the first report is not limited, and may be, for example, “Measurement Result Information”, “Measurement Report”, “Beam Detection Report”, “Reported Result”, etc.

[0209] In some embodiments, the terminal receives first information sent by a network device, but is not limited thereto. The terminal may also receive first information sent by other entities, in which case step S2101 is omitted.

[0210] In some embodiments, the terminal obtains the first information specified by the protocol, in which step S2101 is omitted.

[0211] In some embodiments, the terminal obtains first information from the upper layer(s), in which case step S2101 is omitted.

[0212] In some embodiments, the terminal processes the information to obtain the first information, in which case step S2101 is omitted.

[0213] In some embodiments, the terminal autonomously implements the function indicated by the first information, or the above function is a default or default value, in which case step S2101 is omitted.

[0214] For example, the terminal may determine, by protocol or default parameters, the configuration information of the first reference signal, the reporting method of the first report, and one or more of the measurement results included in the first report.

[0215] In step S2102, the network device sends a first reference signal to the terminal.

[0216] In some embodiments, the network device sends a first reference signal to the terminal based on the configuration information of the first reference signal.

[0217] In some embodiments, the first reference signal is used by the terminal to perform measurements of various L1 measurement types.

[0218] In some embodiments, the terminal performs measurements of various L1 measurement types based on the resources corresponding to the first reference signal. Optionally, the terminal performs measurements of various L1 measurement types according to the configuration information of the first reference signal indicated by the first information.

[0219] In some embodiments, the L1 measurement type includes at least one of the following: beam reporting; beam failure detection; candidate beam detection for recovering from beam failure; and wireless link monitoring.

[0220] In some embodiments, the terminal receives a first reference signal sent by the network device and performs one or more of the following measurements: beam reporting, beam failure detection, candidate beam detection, and wireless link monitoring.

[0221] In some embodiments, the first reference signal includes at least one set of reference signals and / or one or more second reference signals, wherein each set of reference signals is used by the terminal to perform one or more L1 measurement types, and each second reference signal is used by the terminal to perform an L1 measurement type.

[0222] For example, the first reference signal can be configured by the network device to include a set of reference signals for the terminal to perform beam reporting and candidate beam detection for recovering beam failure, and two independent reference signals for beam failure detection and radio link monitoring, respectively. The reference signals for beam failure detection and radio link monitoring can, for example, be reference signals corresponding to the beam currently being used by the PDCCH or PDSCH. In this case, the network device can send the set of reference signals and the reference signal corresponding to the beam currently being used by the PDCCH or PDSCH, so that the terminal performs measurements corresponding to beam reporting, beam failure detection, candidate beam detection for recovering beam failure, and radio link monitoring based on these reference signals.

[0223] In some embodiments, the first reference signal includes at least one of the following: a first set of reference signals for the terminal to perform beam reporting and candidate beam detection for recovering beam failure; and a second set of reference signals for the terminal to perform beam failure detection and wireless link monitoring.

[0224] In some embodiments, the first reference signal may include only the first set of reference signals and the second set of reference signals.

[0225] In some embodiments, the first reference signal may include only one set of reference signals, such as one or a group of reference signals, which is used by the terminal to perform measurements corresponding to at least two of beam reporting, beam failure detection, candidate beam detection, and wireless link monitoring.

[0226] In some embodiments, the reference signal set may refer to a set of reference signals (such as SSB, CSI-RS, etc.) configured by the network device, which can be used simultaneously for multiple L1 measurement tasks.

[0227] In some embodiments, after receiving a first reference signal sent by a network device and performing measurements of various L1 measurement types, the terminal executes step S2103.

[0228] In some embodiments, the terminal receives a first reference signal sent by the network device and performs measurements of one or more of beam reporting, beam failure detection, candidate beam detection, and wireless link monitoring before executing step S2103.

[0229] Step S2103: The terminal sends a first report to the network device.

[0230] In some embodiments, the first report includes at least one of the following:

[0231] The first index is used to indicate the index of the optimal N beams;

[0232] The first measurement value is used to indicate the measurement value corresponding to the optimal N beams;

[0233] The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period;

[0234] The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period;

[0235] The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period;

[0236] The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period;

[0237] The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the PDCCH or PDSCH;

[0238] The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period;

[0239] The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

[0240] In some embodiments, the value of N can be an integer greater than or equal to 1, which can be configured by the network device, for example, it can be configured through first information, or it can be predetermined by the protocol. This disclosure does not limit this.

[0241] In some embodiments, the first to sixth durations described above may be all equal, all unequal, or partially equal, and this disclosure does not limit this. For example, link recovery can occur simultaneously with link failure; in this case, the fifth duration may be the same as the sixth duration. In addition, the first duration may be the same as the second duration, the third duration may be the same as the fourth duration, and the first duration may be different from the third and fifth durations.

[0242] In some embodiments, one or more of the first to sixth durations may be indicated by a network device, for example, the first information in step S2101 may include one or more of the first to sixth durations.

[0243] In some embodiments, the terminal acquires one or more of the first to sixth durations specified by the protocol.

[0244] In some embodiments, the terminal obtains one or more of the first to sixth durations from the upper layer(s).

[0245] In some embodiments, the terminal processes the data to obtain one or more of the first to sixth durations.

[0246] In some embodiments, one or more of the first index, the first measurement value, and the fourth measurement value may be measurement results corresponding to beam reporting. Optionally, one or more of the second index and the second measurement value may be measurement results corresponding to beam failure detection. Optionally, the third index and the third measurement value may be measurement results corresponding to candidate beam detection for beam failure recovery. Optionally, the first indication and the second indication may be measurement results corresponding to wireless link monitoring.

[0247] For example, if the terminal determines, based on the first information or its own processing, that the first reference signal is only used for beam reporting and for candidate beam detection to recover from beam failure, then the first report may not include one or more of the second index, the second measurement, the first indication, and the second indication.

[0248] In some embodiments, the terminal may periodically send a first report to the network device based on the indication of the first information or a predetermined period (such as that predefined by the protocol or indicated by a higher layer).

[0249] In some embodiments, the terminal may send a first report to the network device non-periodically based on the indication of the first information or predetermined resources (such as those predefined by the protocol or indicated by higher layers).

[0250] In some embodiments, the terminal may send a first report to the network device when a corresponding triggering event is triggered, based on the indication of the first information or a pre-determined triggering event (such as one predefined by the protocol or indicated by a higher layer).

[0251] In some embodiments, the event used to trigger the event-based reporting includes at least one of the following:

[0252] The terminal determines that the measured value of the currently measured beam is lower than a first threshold;

[0253] The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold.

[0254] The terminal determined that the measured values ​​of all beams were below the third threshold;

[0255] After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

[0256] Optionally, if the terminal determines that the measured value of the currently measured beam is lower than a first threshold, or that the measured value of the beam currently used by the PDCCH or PDSCH is lower than a second threshold, then it can be determined that the currently measured beam or the beam currently used by the PDCCH or PDSCH is about to experience beam failure.

[0257] Optionally, if the terminal determines that the measured values ​​of all beams are below the third threshold, it can determine that a link failure is imminent.

[0258] Optionally, if the terminal determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold after measuring the first reference signal, then it can be determined that there is a beam that can be used for beam recovery.

[0259] In some embodiments, the first to fourth thresholds can be set based on one or more of the following: Signal to Interference plus Noise Ratio (SINR), Block Error Rate (BLER), or L1-RSRP. Correspondingly, the beam measurement value can be any one or more of the SINR, BLER, or L1-RSRP obtained from beam measurements. For example, the first threshold can correspond to the L1-RSRP value; if the terminal determines that the L1-RSRP of the currently measured beam is lower than the first threshold, it can determine that a corresponding triggering event has occurred.

[0260] In some embodiments, the first threshold is higher than a measurement threshold used for beam failure monitoring; and / or,

[0261] The second threshold is higher than the threshold value used for beam failure monitoring; and / or,

[0262] The third threshold is higher than the threshold value used for wireless link monitoring; and / or,

[0263] The fourth threshold is lower than the threshold for measurements used for candidate beam monitoring.

[0264] It is worth noting that the measurement thresholds for beam failure monitoring, wireless link monitoring, and candidate beam monitoring can be pre-defined thresholds in the protocol, where the network configures each L1 measurement type separately. For example, these thresholds could be measurement thresholds used by the terminal when, in a scenario where a first reference signal is not used, the network configures reference signals separately for each L1 measurement type, and the terminal determines whether a beam failure, link failure, or candidate beam has been found based on these reference signals.

[0265] Compared to the aforementioned technical solutions in the BFD and BFR processes that cannot monitor beam changes in real time, this design, by comparing the measured beam values ​​with the first to fourth thresholds during real-time measurement of the first reference signal to determine whether to trigger the reporting of the first report, can predict the degradation of beam performance before actual beam failure or link failure occurs. Furthermore, the first report can report beams that can be used for beam recovery based on the first reference signal, thereby improving the reliability of communication.

[0266] In some embodiments, when an event-based reporting is triggered, the terminal may report all measurement results, or, depending on the event that triggered the reporting, only report a portion of the measurement results.

[0267] In some embodiments, the measurement results included in the first report may be determined based on an event that triggers an event-based reporting.

[0268] In some embodiments, the terminal determines the measurement results included in the first report based on an event that triggers an event-based reporting.

[0269] For example, if the terminal determines that the measured value of the currently measured beam is lower than a first threshold, or the measured value of the beam currently used by the PDCCH or PDSCH is lower than a second threshold, it can determine that a corresponding triggering event has been triggered and a beam failure may be about to occur. Then, it can report the measurement result corresponding to the beam failure detection to the network device, and / or report the corresponding measurement result of the beam. That is, the first report includes the measurement result corresponding to the beam failure detection, and / or the measurement result corresponding to the beam reporting.

[0270] In some embodiments, the first report may include all measurement results that need to be reported. That is, the terminal may send only one report for each measurement report, or the terminal may send all measurement results that need to be reported to the network device by sending multiple reports.

[0271] In some embodiments, the first report includes one or more sub-reports, each sub-report corresponding to at least one L1 measurement type, and the terminal may send each sub-report to the network device separately. Optionally, the network device receives each sub-report sent by the terminal.

[0272] It is understandable that the collection of measurement results included in multiple sub-reports can be equivalent to the measurement results included in the first report. That is, the terminal can report all the measurement results that need to be reported to the network device through multiple sub-reports.

[0273] For example, if the terminal needs to report the measurement results corresponding to beam failure detection, candidate beam detection, wireless link monitoring, and beam reports, the terminal can send a sub-report for the measurement results corresponding to the beam reports, and send another sub-report for the measurement results corresponding to beam failure detection, candidate beam detection, and wireless link monitoring.

[0274] In some embodiments, the network device receives a first report sent by the terminal. Optionally, the network device receives each sub-report sent by the terminal. Optionally, the network device receives each sub-report sent by the terminal separately.

[0275] In some embodiments, the network device determines that it has received a first report and executes step S2104. Optionally, the network device determines that it has received each sub-report sent by the terminal and executes step S2104.

[0276] In step S2104, the network device determines, based on the first report, whether to instruct the terminal to perform beam switching and / or cell switching.

[0277] In some embodiments, the first report is used to determine whether at least one of the following needs to be performed: beam handover; cell handover.

[0278] In some embodiments, beam switching and TCI state switching, beam indication can be interchanged.

[0279] In some embodiments, the network device determines that it needs to instruct the terminal to perform beam switching and sends a beam switching instruction to the terminal. Optionally, the network device determines that it needs to instruct the terminal to perform cell switching and sends a cell switching instruction to the terminal.

[0280] In some embodiments, if the first report includes an index of the beam that is about to fail, and / or a measurement of the beam that is about to fail, the network device can perform beam handover configuration in advance. Optionally, if the first report includes a first indication, the network device can perform cell handover configuration in advance.

[0281] In some embodiments, the network device may configure beam switching based on the index of the beams that can be used for beam recovery in the first report, for example, using the beams that can be used for beam recovery as the beams to be used after beam switching.

[0282] Compared to the technical solution mentioned in the above embodiments where the UE initiates BFR to find candidate beams only when beam failure is determined, this design allows the terminal to predict the decline in beam performance through the first report and indicate the beams that can be used for beam recovery. This enables network devices to configure or indicate beam switching or cell switching based on the first report before the beam performance declines, avoiding the RACH process, effectively shortening the delay of beam reconstruction or cell switching, and improving the reliability of communication.

[0283] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0284] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0285] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0286] In some embodiments, the terms "search space", "search space set", "search space configuration", "search space set configuration", "control resource set (CORESET)", and "CORESET configuration" can be used interchangeably.

[0287] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0288] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0289] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0290] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0291] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0292] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0293] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0294] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0295] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, step S2101 + step S2102 may be implemented as an independent embodiment, step S2102 + step S2103 may be implemented as an independent embodiment, step S2103 + step S2104 may be implemented as an independent embodiment, but is not limited thereto.

[0296] In some embodiments, steps S2101 and S2103 to S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0297] In some embodiments, steps S2101 to S2102 and step S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0298] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0299] Figure 3A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the embodiments of the present disclosure relate to a communication method, which includes:

[0300] Step S3101: The network device sends a first reference signal to the terminal.

[0301] Step S3102: The terminal sends a first report to the network device.

[0302] In some embodiments, the first reference signal is used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types, and the first report includes measurement results of multiple L1 measurement types.

[0303] In some embodiments, the L1 measurement type includes at least one of the following:

[0304] Beam reporting; Beam Failure Detection (BFD); Candidate Beam Detection (CBD) for recovering from beam failure; Radio Link Monitoring (RLM).

[0305] In some embodiments, the first report includes at least one of the following:

[0306] The first index is used to indicate the index of the optimal N beams;

[0307] The first measurement value is used to indicate the measurement value corresponding to the optimal N beams;

[0308] The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period;

[0309] The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period;

[0310] The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period;

[0311] The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period;

[0312] The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH);

[0313] The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period;

[0314] The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

[0315] In some embodiments, the first reference signal includes at least one set of reference signals, and / or one or more second reference signals;

[0316] Each set of reference signals is used by the terminal to perform one or more L1 measurement types, and each second reference signal is used by the terminal to perform one L1 measurement type.

[0317] In some embodiments, the first reference signal includes at least one of the following:

[0318] The first set of reference signals is used by the terminal to perform beam reporting and to detect candidate beams for beam failure recovery.

[0319] The second set of reference signals is used by the terminal to perform beam failure detection and wireless link monitoring.

[0320] In some embodiments, the first report includes one or more sub-reports, each sub-report corresponding to at least one L1 measurement type. Sending the first report to the network device includes:

[0321] Send each sub-report to the network device separately.

[0322] In some embodiments, the network device receives each sub-report sent by the terminal.

[0323] In some embodiments, the method includes:

[0324] The terminal receives first information sent by the network device, the first information indicating at least one of the following:

[0325] Configuration information of the first reference signal;

[0326] The method of submitting the first report;

[0327] The first report includes the measurement results.

[0328] In some embodiments, the reporting method of the first report includes at least one of the following: periodic reporting; non-periodic reporting; and event-based reporting.

[0329] In some embodiments, the event used to trigger event-based reporting includes at least one of the following:

[0330] The terminal determines that the measured value of the currently measured beam is lower than a first threshold;

[0331] The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold.

[0332] The terminal determined that the measured values ​​of all beams were below the third threshold;

[0333] After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

[0334] In some embodiments, the first threshold is higher than a measurement threshold used for beam failure monitoring; and / or,

[0335] The second threshold is higher than the threshold value used for beam failure monitoring; and / or,

[0336] The third threshold is higher than the threshold value used for wireless link monitoring; and / or,

[0337] The fourth threshold is lower than the threshold for measurements used for candidate beam monitoring.

[0338] In some embodiments, the method includes:

[0339] The measurement results included in the first report are determined based on the event that triggered the event-based reporting.

[0340] In some embodiments, the measurement results included in the first report are determined based on an event that triggers an event-based reporting.

[0341] In some embodiments, the first report is used to determine whether at least one of the following needs to be performed: beam handover; cell handover.

[0342] In some embodiments, the network device determines, based on a first report, whether to instruct the terminal to perform at least one of the following: beam switching; cell switching.

[0343] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0344] Figure 3B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to a communication method, which includes:

[0345] Step S3201: The network device sends a first reference signal to the terminal.

[0346] In step S3202, the terminal determines the measurement results included in the first report based on the event that triggered the event-based reporting.

[0347] Step S3203: The terminal sends a first report to the network device.

[0348] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0349] Figure 3C is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3C, the embodiments of the present disclosure relate to a communication method, which includes:

[0350] Step S3301: The network device sends a first reference signal to the terminal.

[0351] In step S3302, the terminal sends each sub-report to the network device.

[0352] In some embodiments, step S3302 may be combined with one or more of steps S3201 to S3203 in FIG3B.

[0353] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0354] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, the present disclosure relates to a communication method, which includes:

[0355] Step S4101: The network uniformly configures reference signals for various L1 measurement types.

[0356] In some embodiments, L1 measurement types include:

[0357] Type 1: Beam reporting;

[0358] Type 2: Beam Failure Detection (BFD);

[0359] Type 3: Candidate Beam Detection (CBD);

[0360] Type 4: Radio Link Detection (RLM).

[0361] Alternatively, beam failure detection can also be referred to as monitoring beam failure, candidate beam detection can also be referred to as recovering beam failure, and wireless link monitoring can also be referred to as link failure monitoring.

[0362] In some embodiments, the network may employ different implementations regarding the configuration of the reference signal:

[0363] Implementation Method 1: Configure a common set of reference signals for all L1 measurement types. For example, define a set of reference signals for use in all four types of measurements mentioned above.

[0364] Implementation Method Two: For certain categories, a common set of reference signals is used. For other categories, separate reference signals are defined.

[0365] For example, reference signals based on beam reporting can also be used to recover from beam failures, meaning the network no longer needs to configure separate reference signals for the CBD. The network defines a set of reference signals for both beam reporting and beam failure recovery.

[0366] If no reference signal is configured for BFD and RLM, the default reference signal can be used. The default reference signal can be the reference signal corresponding to the beam currently being used by the PDCCH or PDSCH.

[0367] In some embodiments, network configuration reference signal may refer to the network device configuring one or more of the following aspects of the reference signal: the L1 measurement type corresponding to the reference signal; the time-frequency domain resources of the reference signal; the period of the reference signal; the power information of the reference signal; the QCL information of the reference signal; and so on.

[0368] Step S4102: Configure the network for reporting methods of various L1 measurements.

[0369] In some embodiments, the reporting methods can be divided into periodic, non-periodic, and condition / event-based reporting.

[0370] In some embodiments, there are two possible schemes for reporting multiple L1 measurements:

[0371] Option 1: In a single L1 report, the UE reports multiple pieces of information, including a set of various L1 measurements or a subset of those measurements. For example, an L1 report may include one or more of the following:

[0372] Option 1: The best N beam indices;

[0373] Option 2: L1-RSRP values ​​corresponding to the best N beam indices;

[0374] Option 3: The L1-RSRP value corresponding to the beam currently being used by the PDCCH or PDSCH;

[0375] Option 4: The index of the beam that will fail in the current time or within the time period t+Tduring starting from the current time;

[0376] Option 5: The L1-RSRP value corresponding to the beam index that is about to fail, either currently or within the time period t+Tduring starting from now;

[0377] Option 6: The beam index that can be used for beam recovery, either currently or within the time period t+T starting from the current time.

[0378] Option 7: The beam index that can be used for beam recovery, either currently or within the time period t+T starting from the current time.

[0379] Option 8: An RLF OOS (Link Failure) or RLF INS (Link Recovery) is expected to occur at present or within t+Tduring from now.

[0380] Option 2: The UE reports multiple measurement results separately.

[0381] For example, when a UE reports beams, it reports the beam indexes corresponding to the top few best beams.

[0382] In addition, the UE reports RS separately for BFD, CBD and RLM configurations, and the reported content includes some or a combination of options 4 to 8 mentioned above.

[0383] In step S4102, for condition / event-based reporting, the event type that triggers the reporting for each measurement can also be predefined.

[0384] For link failure monitoring, the event types that trigger reporting can include:

[0385] Option 1: The beam measurement value configured in BFD is below a certain threshold Q1;

[0386] Option 2: The measurement value corresponding to the beam currently being used by the PDCCH or PDSCH is lower than a certain threshold Q2;

[0387] The purpose of the aforementioned thresholds Q1 and Q2 is to predict the degradation of beam performance before beam failure or link failure, and to initiate the TCI state switch in advance. Therefore, thresholds Q1 and Q2 can be slightly higher than the thresholds when BFR is actually performed.

[0388] For link recovery monitoring, the event types that trigger reporting can include:

[0389] Option 1: The beam measurement value reported by the CBD configuration or beam reporting is higher than a certain threshold Q3.

[0390] For link failure monitoring, the event types that trigger reporting can include:

[0391] Option 1: The measured value corresponding to the beam configured in the RLM is lower than a certain threshold Q4.

[0392] The purpose of the threshold Q4 is to predict the degradation of cell performance before the link fails and to initiate cell handover in advance. Therefore, the threshold Q4 can be slightly higher than the actual threshold for performing RLF.

[0393] In some embodiments, the threshold settings can be defined by the UE itself or configured by the network. The thresholds Q1 to Q4 mentioned above can be based on the following options:

[0394] Option 1: Based on SINR;

[0395] Option 2: Based on BLER;

[0396] Option 3: Based on L1-RSRP.

[0397] Therefore, if it is condition-based reporting, the results reported by the UE may include results of one or more measurement types, depending on the threshold of different measurement types.

[0398] For example, the reported results include:

[0399] Case 1: Only includes beam reporting results;

[0400] Case 2: Includes beam reporting results and beam failure measurement results;

[0401] Case 3: Includes beam reporting results, beam failure measurement results, and beam recovery measurement results;

[0402] Case 4: Includes beam reporting results, beam failure measurement results, beam recovery measurement results, and link failure measurement results.

[0403] Understandably, beam reporting results may no longer be presented separately, but may be combined with beam failure and beam recovery measurement results.

[0404] In step S4103, the UE performs various types of L1 measurements for the configured or default reference signal resources and reports them according to the network's reporting configuration.

[0405] In some embodiments, if the network is configured for conditional or event-based reporting, the UE needs to compare the measurement results with predefined thresholds.

[0406] The optional implementation methods for the threshold can be found in the related section of step S4102. The purpose of this threshold is to predict the degradation of beam or cell performance before beam or link failure, and to initiate TCI state switch or cell handover in advance.

[0407] In step S4104, the network performs beam switching configuration or cell switching configuration in advance based on the UE's reported results.

[0408] In some embodiments, if the UE reports a beam index and / or corresponding measurement value that may indicate beam failure, the network configures the UE to perform a beam switch (or TCI state switch, also known as beam indication). The new beam index is the beam index previously reported by the UE that can be used for beam recovery.

[0409] In some embodiments, if a UE reports a possible link failure, the network pre-configures the UE to perform a cell switch (cell witching or hand over).

[0410] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0411] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0412] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0413] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0414] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. Terminal 5100 is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, terminal 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the transceiver module 5101 is used to receive a first reference signal sent by a network device, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types; the transceiver module 5101 is also used to send a first report to the network device, the first report including measurement results of multiple L1 measurement types.

[0415] In some embodiments, the L1 measurement type includes at least one of the following:

[0416] Beam reporting; Beam Failure Detection (BFD); Candidate Beam Detection (CBD) for recovering from beam failure; Radio Link Monitoring (RLM).

[0417] In some embodiments, the first report includes at least one of the following:

[0418] The first index is used to indicate the index of the optimal N beams;

[0419] The first measurement value is used to indicate the measurement value corresponding to the optimal N beams;

[0420] The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period;

[0421] The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period;

[0422] The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period;

[0423] The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period;

[0424] The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH);

[0425] The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period;

[0426] The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

[0427] In some embodiments, the first reference signal includes at least one set of reference signals, and / or one or more second reference signals;

[0428] Each set of reference signals is used by the terminal to perform one or more L1 measurement types, and each second reference signal is used by the terminal to perform one L1 measurement type.

[0429] In some embodiments, the first reference signal includes at least one of the following:

[0430] The first set of reference signals is used by the terminal to perform beam reporting and to detect candidate beams for beam failure recovery.

[0431] The second set of reference signals is used by the terminal to perform beam failure detection and wireless link monitoring.

[0432] In some embodiments, the first report includes one or more sub-reports, each sub-report corresponding to at least one L1 measurement type, and the transceiver module 5101 is used to send each sub-report to the network device respectively.

[0433] In some embodiments, the transceiver module 5101 is configured to receive first information sent by the network device, the first information being used to indicate at least one of the following:

[0434] Configuration information of the first reference signal;

[0435] The method of submitting the first report;

[0436] The first report includes the measurement results.

[0437] In some embodiments, the reporting method of the first report includes at least one of the following: periodic reporting; non-periodic reporting; and event-based reporting.

[0438] In some embodiments, the event used to trigger event-based reporting includes at least one of the following:

[0439] The terminal determines that the measured value of the currently measured beam is lower than a first threshold;

[0440] The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold.

[0441] The terminal determined that the measured values ​​of all beams were below the third threshold;

[0442] After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

[0443] In some embodiments, the first threshold is higher than a measurement threshold used for beam failure monitoring; and / or,

[0444] The second threshold is higher than the threshold value used for beam failure monitoring; and / or,

[0445] The third threshold is higher than the threshold value used for wireless link monitoring; and / or,

[0446] The fourth threshold is lower than the threshold for measurements used for candidate beam monitoring.

[0447] In some embodiments, the processing module 5102 is configured to determine the measurement results included in the first report based on the event that triggers the event-based reporting.

[0448] In some embodiments, the first report is used to determine whether at least one of the following needs to be performed: beam handover; cell handover.

[0449] Optionally, the transceiver module 5101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be described in detail here. Optionally, the processing module 5102 is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0450] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the network device 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module 5201 is used to send a first reference signal to a terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types; the transceiver module 5201 is also used to receive a first report sent by the terminal, the first report including measurement results of multiple L1 measurement types.

[0451] In some embodiments, the L1 measurement type includes at least one of the following:

[0452] Beam reporting; Beam Failure Detection (BFD); Candidate Beam Detection (CBD) for recovering from beam failure; Radio Link Monitoring (RLM).

[0453] In some embodiments, the first report includes at least one of the following:

[0454] The first index is used to indicate the index of the optimal N beams;

[0455] The first measurement value is used to indicate the measurement value corresponding to the optimal N beams;

[0456] The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period;

[0457] The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period;

[0458] The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period;

[0459] The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period;

[0460] The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH);

[0461] The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period;

[0462] The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

[0463] In some embodiments, the first reference signal includes at least one set of reference signals and one or more second reference signals;

[0464] Each set of reference signals is used by the terminal to perform one or more L1 measurement types, and each second reference signal is used by the terminal to perform one L1 measurement type.

[0465] In some embodiments, the first reference signal includes at least one of the following:

[0466] The first set of reference signals is used by the terminal to perform beam reporting and to detect candidate beams for beam failure recovery.

[0467] The second set of reference signals is used by the terminal to perform beam failure detection and wireless link monitoring.

[0468] In some embodiments, the first report includes one or more sub-reports, each sub-report corresponding to at least one L1 measurement type, and the transceiver module 5201 is used to send each sub-report to the network device.

[0469] In some embodiments, the transceiver module 5201 is configured to send first information to the terminal, the first information being used to indicate at least one of the following:

[0470] Configuration information of the first reference signal;

[0471] The method of submitting the first report;

[0472] The first report includes the measurement results.

[0473] In some embodiments, the reporting method of the first report includes at least one of the following: periodic reporting; non-periodic reporting; and event-based reporting.

[0474] In some embodiments, the event used to trigger event-based reporting includes at least one of the following:

[0475] The terminal determines that the measured value of the currently measured beam is lower than a first threshold;

[0476] The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold.

[0477] The terminal determined that the measured values ​​of all beams were below the third threshold;

[0478] After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

[0479] In some embodiments, the first threshold is higher than a measurement threshold used for beam failure monitoring; and / or,

[0480] The second threshold is higher than the threshold value used for beam failure monitoring; and / or,

[0481] The third threshold is higher than the threshold value used for wireless link monitoring; and / or,

[0482] The fourth threshold is lower than the threshold for measurements used for candidate beam monitoring.

[0483] In some embodiments, the measurement results included in the first report are determined based on an event that triggers an event-based reporting.

[0484] In some embodiments, the processing module 5201 is configured to determine, based on a first report, whether to instruct the terminal to perform at least one of the following: beam handover; cell handover.

[0485] Optionally, the transceiver module 5201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 5202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be described in detail here.

[0486] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0487] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0488] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0489] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0490] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0491] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above-described method, and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0492] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6103 and can be used to receive data and / or instructions from the memory 6103 or other devices, and can be used to send data and / or instructions to the memory 6103 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6103 and send the data and / or instructions to the processor 6101.

[0493] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0494] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0495] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0496] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0497] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0498] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0499] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0500] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0501] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method, executed by a terminal, includes: The terminal receives a first reference signal sent by a network device, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types. A first report is sent to the network device, the first report including measurement results of various L1 measurement types.

2. The method according to claim 1, characterized in that, The L1 measurement type includes at least one of the following: Beam reporting; Beam Failure Detection (BFD); Candidate Beam Detection (CBD) for recovering from beam failure; Radio Link Monitoring (RLM).

3. The method according to claim 1 or 2, characterized in that, The first report includes at least one of the following: The first index is used to indicate the index of the optimal N beams; The first measurement value is used to indicate the measurement value corresponding to the optimal N beams; The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period; The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period; The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period; The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period; The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH); The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period; The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

4. The method according to any one of claims 1-3, characterized in that, The first reference signal includes at least one set of reference signals, and / or one or more second reference signals; Each set of reference signals is used by the terminal to perform one or more of the L1 measurement types, and each of the second reference signals is used by the terminal to perform one of the L1 measurement types.

5. The method according to claim 4, characterized in that, The first reference signal includes at least one of the following: A first set of reference signals is used by the terminal to perform beam reporting and / or to detect candidate beams for beam failure recovery; A second set of reference signals is used by the terminal to perform beam failure detection and / or wireless link monitoring.

6. The method according to any one of claims 1-5, characterized in that, The first report includes one or more sub-reports, each sub-report corresponding to at least one of the L1 measurement types, and sending the first report to the network device includes: Each of the sub-reports is sent to the network device respectively.

7. The method according to any one of claims 1-6, characterized in that, The method includes: Receive first information sent by the network device, the first information being used to indicate at least one of the following: Configuration information of the first reference signal; The method of submitting the first report; The first report includes the measurement results.

8. The method according to any one of claims 1-7, characterized in that, The first report may be submitted in at least one of the following ways: periodic reporting; non-periodic reporting; or event-based reporting.

9. The method according to claim 8, characterized in that, The events used to trigger the event-based reporting include at least one of the following: The terminal determines that the measured value of the currently measured beam is lower than a first threshold. The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold. The terminal determines that the measured values ​​of all beams are below the third threshold. After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

10. The method according to claim 9, characterized in that, The first threshold is higher than the measurement threshold used for beam failure monitoring; and / or, The second threshold is higher than the measurement threshold used for beam failure monitoring; and / or, The third threshold is higher than the measurement threshold used for wireless link monitoring; and / or, The fourth threshold is lower than the measurement threshold used for candidate beam monitoring.

11. The method according to any one of claims 8-10, characterized in that, The method includes: The measurement results included in the first report are determined based on the event that triggered the event-based reporting.

12. The method according to any one of claims 1-11, characterized in that, The first report is used to determine whether at least one of the following needs to be performed: Beam switching; cell switching.

13. A communication method, characterized in that, Performed by a network device, the method includes: Send a first reference signal to the terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types; The terminal sends a first report, which includes measurement results of various L1 measurement types.

14. The method according to claim 13, characterized in that, The L1 measurement type includes at least one of the following: Beam reporting; Beam Failure Detection (BFD); Candidate Beam Detection (CBD) for recovering from beam failure; Radio Link Monitoring (RLM).

15. The method according to claim 13 or 14, characterized in that, The first report includes at least one of the following: The first index is used to indicate the index of the optimal N beams; The first measurement value is used to indicate the measurement value corresponding to the optimal N beams; The second index is used to indicate the index of the beam that is about to fail in the current period or within the first time period; The second measurement value is used to indicate the measurement value corresponding to the beam that will fail in the current period or within the second time period; The third index is used to indicate the index of the beam that can be used for beam recovery in the current or third time period; The third measurement value is used to indicate the measurement value corresponding to the beam that can be used for beam recovery in the current or fourth time period; The fourth measurement value is used to indicate the measurement value corresponding to the beam currently being used by the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH); The first indication is used to indicate that a link failure is about to occur at present or within the fifth time period; The second indication is used to indicate that a link recovery is imminent, either currently or within the sixth time period.

16. The method according to any one of claims 13-15, characterized in that, The first reference signal includes at least one set of reference signals and one or more second reference signals; Each set of reference signals is used by the terminal to perform one or more of the L1 measurement types, and each of the second reference signals is used by the terminal to perform one of the L1 measurement types.

17. The method according to claim 16, characterized in that, The first reference signal includes at least one of the following: A first set of reference signals is used by the terminal to perform beam reporting and candidate beam detection for recovering beam failures; The second set of reference signals is used by the terminal to perform beam failure detection and wireless link monitoring.

18. The method according to any one of claims 13-17, characterized in that, The first report includes one or more sub-reports, each sub-report corresponding to at least one of the L1 measurement types, and receiving the first report sent by the terminal includes: Each of the sub-reports is sent to the network device.

19. The method according to any one of claims 13-18, characterized in that, The method includes: Send a first message to the terminal, the first message being used to indicate at least one of the following: Configuration information of the first reference signal; The method of submitting the first report; The first report includes the measurement results.

20. The method according to any one of claims 13-19, characterized in that, The first report may be submitted in at least one of the following ways: periodic reporting; non-periodic reporting; or event-based reporting.

21. The method according to claim 20, characterized in that, The events used to trigger the event-based reporting include at least one of the following: The terminal determines that the measured value of the currently measured beam is lower than a first threshold. The terminal determines that the measurement value corresponding to the beam currently used by the PDCCH or PDSCH is lower than the second threshold. The terminal determines that the measured values ​​of all beams are below the third threshold. After the terminal completes the measurement of the first reference signal, it determines that there is a beam in the measured beam whose measured value is higher than the fourth threshold.

22. The method according to claim 21, characterized in that, The first threshold is higher than the measurement threshold used for beam failure monitoring; and / or, The second threshold is higher than the measurement threshold used for beam failure monitoring; and / or, The third threshold is higher than the measurement threshold used for wireless link monitoring; and / or, The fourth threshold is lower than the measurement threshold used for candidate beam monitoring.

23. The method according to any one of claims 20-22, characterized in that, The measurement results included in the first report are determined based on the event that triggered the event-based reporting.

24. The method according to any one of claims 13-23, characterized in that, The method further includes: Based on the first report, determine whether to instruct the terminal to perform at least one of the following: Beam switching; cell switching.

25. A communication device, characterized in that, include: The transceiver module is used to receive a first reference signal sent by the network device, the first reference signal being used by the terminal to perform measurements of various Layer 1 (L1) measurement types; The transceiver module is also configured to send a first report to the network device, the first report including measurement results of various L1 measurement types.

26. A communication device, characterized in that, include: The transceiver module is used to send a first reference signal to the terminal, the first reference signal being used by the terminal to perform measurements of multiple Layer 1 (L1) measurement types; The transceiver module is also used to receive a first report sent by the terminal, the first report including measurement results of various L1 measurement types.

27. A communication device, characterized in that, include: One or more processors; The communication device is used to perform the communication method according to any one of claims 1-12 or any one of claims 13-22.

28. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1-11, and the network device is configured to implement the communication method according to any one of claims 13-24.

29. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as claimed in any one of claims 1-12 or any one of claims 13-24.

30. A computer program product comprising a computer program and / or instructions, characterized in that, When the computer program and / or the instructions are executed by the communication device, they implement the communication method as described in any one of claims 1-12 or any one of claims 13-24.

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