Information indication methods, terminals, communication systems, and storage media

Abstract

This disclosure provides an information indication method, terminal, communication system, and storage medium. The method includes: receiving first information sent by a first terminal, the first information indicating: a measurement result obtained by the first terminal measuring a first reference signal received on a first resource; the first resource being a time-domain and / or frequency-domain resource where the first terminal receives the first reference signal on a beam; and determining whether to switch or not switch beams based on the first information and second information; wherein the second information is used to determine whether a second terminal transmits the first reference signal on the first resource. This results in more precise beam management.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to information indication methods, terminals, communication systems and storage media. Background Technology

[0002] In the field of communication technology, sidelinks enable direct communication between terminals. Sidelink communication can be based on omnidirectional antennas for transmission and reception. Beam-based transmission and reception can also be used, thus requiring research into beam management in sidelinks. Summary of the Invention

[0003] In related technologies, inaccurate or even erroneous beam management may occur.

[0004] This disclosure provides an information indication method, a terminal, a communication system, and a storage medium.

[0005] According to a first aspect of the present disclosure, an information indicating method is provided, the method comprising:

[0006] The system receives first information sent by a first terminal, the first information indicating: the measurement result obtained by the first terminal measuring the first reference signal received on a first resource; the first resource is the time domain and / or frequency domain resource of the first terminal receiving the first reference signal on the beam;

[0007] Based on the first information and the second information, it is determined whether to switch the beam or not; wherein, the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0008] According to a second aspect of the present disclosure, an information indication method is provided, the method comprising:

[0009] Send the first information to the second terminal;

[0010] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0011] According to a third aspect of the present disclosure, an information indication method is provided, the method comprising:

[0012] The first terminal sends the first information to the second terminal;

[0013] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch the beam or not; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0014] According to a fourth aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0015] The transceiver module is configured to send the first information to the second terminal;

[0016] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0017] According to a fifth aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0018] The transceiver module is configured to receive first information sent by a first terminal, wherein the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on a first resource; the first resource is the time domain and / or frequency domain resource of the first terminal receiving the first reference signal on the beam;

[0019] The processing module is configured to: determine whether to switch or not switch beams based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0020] According to a sixth aspect of the present disclosure, a communication system is provided, wherein the communication system includes a terminal and a network device, the terminal is configured to implement the information indication method provided in the first aspect, and the network device is configured to implement the information indication method provided in the second aspect.

[0021] According to a seventh aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0022] One or more processors;

[0023] The terminal is used to execute the information indication method described in the first aspect.

[0024] According to an eighth aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0025] One or more processors;

[0026] The terminal is used to execute the information indication method described in the second aspect.

[0027] According to a ninth aspect of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the information instruction method provided by the first aspect, the second aspect, or the third aspect.

[0028] The technical solutions provided in this disclosure can accurately manage beams.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the embodiments of this disclosure. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

[0031] Figure 1a This is a schematic diagram of the architecture of a communication system according to an exemplary embodiment;

[0032] Figure 1b This is a schematic diagram illustrating an error measurement reference signal according to an exemplary embodiment;

[0033] Figure 2a This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0034] Figure 2b This is a schematic diagram illustrating a feedback codebook according to an exemplary embodiment;

[0035] Figure 2c This is a schematic diagram illustrating a feedback codebook according to an exemplary embodiment;

[0036] Figure 2d This is a schematic diagram illustrating a feedback codebook according to an exemplary embodiment;

[0037] Figure 3a This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0038] Figure 3b This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0039] Figure 4a This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0040] Figure 4b This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0041] Figure 5a This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0042] Figure 6a This is a flowchart illustrating an information indication method according to an exemplary embodiment;

[0043] Figure 7a This is a schematic diagram illustrating the structure of a first information indicating device according to an exemplary embodiment;

[0044] Figure 8a This is a schematic diagram of the structure of a UE according to an exemplary embodiment;

[0045] Figure 8b This is a schematic diagram of the structure of a communication device according to an exemplary embodiment. Detailed Implementation

[0046] This disclosure provides an information indication method, a terminal, a communication system, and a storage medium.

[0047] In a first aspect, embodiments of this disclosure provide an information indication method, the method comprising:

[0048] The system receives first information sent by a first terminal, the first information indicating: the measurement result obtained by the first terminal measuring the first reference signal received on a first resource; the first resource is the time domain and / or frequency domain resource of the first terminal receiving the first reference signal on the beam;

[0049] Based on the first information and the second information, it is determined whether to switch the beam or not; wherein, the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0050] In the above embodiments, since the first information indicates the measurement result obtained by the first terminal measuring the first reference signal received on the first resource, the second terminal can jointly determine whether to switch the beam or not based on the first information and the second information. Compared with not sending the first information and / or determining whether to switch the beam or not based solely on the measurement result, this reduces the possibility of beam switching errors and improves the accuracy of beam switching.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether to switch or not switch beams based on the first information and the second information includes:

[0052] Based on the first information and the second information, a first quantity of the first resource corresponding to the decrease in wireless transmission quality due to beam quality degradation is determined; the wireless transmission quality corresponding to the first resource is less than a first threshold.

[0053] Based on the first quantity, determine whether to switch the beam or not.

[0054] In the above embodiments, since the first quantity of the first resource corresponding to the decrease in wireless transmission quality due to the decrease in beam quality can be determined based on the first information and the second information, the decrease in wireless transmission quality due to other factors can be excluded from determining the first quantity. Thus, the beam switching or not switching can be determined based on the magnitude of the first quantity.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether to switch or not switch beams based on the first quantity includes one of the following:

[0056] Once the first quantity is determined to be greater than or equal to the second threshold, the beam switching is determined.

[0057] If the first quantity is determined to be less than or equal to the second threshold, then it is determined not to switch beams.

[0058] In the above embodiments, whether to switch beams can be adapted to the size of the first number, which is essentially adaptable to the situation where the wireless transmission quality deteriorates due to the deterioration of beam quality, and can accurately determine whether to switch beams.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the first reference signal is a channel state information reference signal (CSI-RS).

[0060] In the above embodiments, the accuracy of beam switching in measurement scenarios using CSI-RS can be achieved.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; the value of the feedback bit corresponding to each first resource is determined based on the wireless transmission quality detected by the first terminal on each first resource.

[0062] The above embodiments include at least one of the following:

[0063] If the wireless transmission quality is less than a first threshold, the value of the feedback bit is a first value.

[0064] The wireless transmission quality is greater than or equal to a first threshold, and the value of the feedback bit is a second value.

[0065] In the above embodiments, the quality of wireless transmission can be reflected by setting different values ​​for the feedback bits.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement result is indicated by feedback bits of the feedback codebook, the feedback bits corresponding to the first resource; the feedback bits of the feedback codebook are feedback bits padded based on feedback timing when the number of bits contained in the feedback codebook is less than a third threshold; the number of feedback bits in the padded feedback codebook is equal to the third threshold.

[0067] In the above embodiments, when the number of feedback codebooks is insufficient, the number of feedback bits can be supplemented based on the feedback timing, so that the number of feedback bits after supplementation is equal to the third threshold, which facilitates the parsing of the second terminal.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the value of the supplemented feedback bit is set to a second value.

[0069] In the above embodiments, the impact of supplemented feedback bits on beam switching inaccuracies can be reduced.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, receiving the first information sent by the first terminal includes:

[0071] The first information sent by the first terminal is received via a beam failure recovery request message.

[0072] In the above embodiments, the beam failure recovery request message can be reused to receive the first information. Compared with setting up a dedicated message to send the first information, this can reduce signaling overhead and resource consumption, and improve resource utilization and communication efficiency.

[0073] Secondly, embodiments of this disclosure provide an information indication method, the method comprising:

[0074] Send the first information to the second terminal;

[0075] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the first reference signal is a channel state information reference signal (CSI-RS).

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0078] If the wireless transmission quality of the first reference signal detected on the first resource for the first time is less than a first threshold, the wireless transmission quality of the first time and / or the subsequent n times is recorded to obtain the measurement result.

[0079] Wherein, n is an integer greater than or equal to 1.

[0080] In the above embodiments, measurement results can be obtained and reported to the second terminal in a timely manner after the first detection of a decrease in the wireless transmission quality of the first reference signal.

[0081] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; obtaining the measurement result includes:

[0082] Based on the wireless transmission quality detected on each of the first resources, the value of the feedback bit corresponding to each of the first resources is determined.

[0083] In the above embodiments, different feedback bits can be used to provide feedback on the wireless transmission quality detected on different first resources.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, determining the value of the feedback bit corresponding to each first resource based on the wireless transmission quality detected on each first resource includes at least one of the following:

[0085] If the wireless transmission quality is determined to be less than a first threshold, the value of the feedback bit is determined to be a first value.

[0086] The wireless transmission quality is determined to be greater than or equal to a first threshold, and the value of the feedback bit is determined to be a second value.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement result is indicated by feedback bits of a feedback codebook, the feedback bits corresponding to the first resource; the method further includes:

[0088] If the second number of feedback bits in the feedback codebook is less than the third threshold, the feedback bits of the feedback codebook are supplemented based on the feedback timing.

[0089] The number of feedback bits in the completed feedback codebook is equal to the third threshold.

[0090] In the above embodiments, when the number of feedback codebooks is insufficient, the number of feedback bits can be supplemented based on the feedback timing, so that the number of feedback bits after supplementation is equal to the third threshold, which facilitates the parsing of the second terminal.

[0091] In conjunction with some embodiments of the first aspect, in some embodiments, the value of the bit used for padding is set to a second value.

[0092] In conjunction with some embodiments of the first aspect, in some embodiments, the step of completing the feedback codebook based on feedback timing includes at least one of the following:

[0093] For the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the second resource are padded into the feedback codebook; wherein, the second resource is the resource before the first resource corresponding to the first threshold is detected when the wireless transmission quality of the first reference signal is less than the first threshold.

[0094] For the third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the third resource are padded into the feedback codebook; wherein, the third resource is the resource after the count of the beam failure instance BFI counter is greater than the first resource corresponding to the fourth threshold.

[0095] In the above embodiments, the feedback bits corresponding to the second resource can be padded to adapt to the feedback timing.

[0096] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second terminal includes:

[0097] Once it is determined that the count of the BFI counter is greater than the fourth threshold, the first information is sent to the second terminal.

[0098] In the above embodiments, this allows for timely feedback to the second terminal in cases of poor wireless transmission quality, notifying the second terminal to switch beams promptly.

[0099] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second terminal includes:

[0100] The first information is sent to the second terminal via a beam failure recovery request message.

[0101] In the above embodiments, the beam failure recovery request message can be reused to send the first information. Compared with setting a dedicated message to send the first information, this can reduce signaling overhead and resource consumption, and improve resource utilization and communication efficiency.

[0102] Thirdly, embodiments of this disclosure provide an information indication method, characterized in that the method includes:

[0103] The first terminal sends the first information to the second terminal;

[0104] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch the beam or not; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0105] Fourthly, embodiments of this disclosure provide a terminal, characterized in that the terminal includes:

[0106] The transceiver module is configured to send the first information to the second terminal;

[0107] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0108] Fifthly, embodiments of this disclosure provide a terminal, characterized in that the terminal includes:

[0109] The transceiver module is configured to receive first information sent by a first terminal, wherein the first information indicates: the measurement result obtained by the first terminal measuring a first reference signal received on a first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on a beam;

[0110] The processing module is configured to: determine whether to switch or not switch beams based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0111] In a sixth aspect, embodiments of this disclosure provide an information indication system, wherein the communication system includes a first terminal and a second terminal, the first terminal being configured to implement the information indication method described in the optional implementation of the first aspect, and the second terminal being configured to implement the information indication method described in the optional implementation of the second aspect.

[0112] In a seventh aspect, embodiments of this disclosure provide a terminal, the terminal comprising:

[0113] One or more processors;

[0114] The terminal is used to execute the information instruction method provided by the first aspect.

[0115] Eighthly, embodiments of this disclosure provide a terminal, the terminal comprising:

[0116] One or more processors;

[0117] The terminal is used to execute the information instruction method provided in the second aspect.

[0118] Ninthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information indication method described in the optional implementations of the first and second aspects.

[0119] In a tenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0120] In one aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0121] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0122] It is understood that the aforementioned terminals, communication systems, storage media, program products, computer programs, chips, or chip systems 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.

[0123] This disclosure provides an information indication method, a terminal communication system, and a storage medium. In some embodiments, the terms "information indication method" and "information processing method," "information transmission method," etc., can be used interchangeably, as can the terms "communication system" and "information processing system."

[0124] 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.

[0125] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0126] 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.

[0127] 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.

[0128] In the embodiments disclosed herein, "multiple" refers to two or more.

[0129] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0130] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0131] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0132] 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.

[0133] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0134] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0135] 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”.

[0136] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0137] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0138] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "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," "cellgroup," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)," etc.

[0139] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0140] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0141] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0142] 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.

[0143] Figure 1a This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0144] like Figure 1a As shown, the communication system 100 includes a first terminal 101 and a second terminal 102. Of course, the communication system may also include access network equipment and core network equipment, which are not limited here.

[0145] In some embodiments, the network device may include at least one of an access network device and a core network device.

[0146] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0147] In some embodiments, the access network device may be a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0148] 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.

[0149] 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.

[0150] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0151] 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 provided 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 provided in this disclosure are also applicable to similar technical problems.

[0152] The following embodiments of this disclosure can be applied to Figure 1a The communication system 100 shown, or a part thereof, but not limited to it. Figure 1a The entities shown are illustrative; a communication system may include... Figure 1a All or part of the main body, or may include Figure 1a Other entities besides the main body, the number and form of each entity are arbitrary, the connection relationship between the entities is illustrative, the entities may not be connected or may be connected, and 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.

[0153] 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), Futuregeneration 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).

[0154] In some embodiments, the sidelink can support direct communication between UEs, with sidelink communication based on omnidirectional antenna transmission and reception. In the Frequency Range 2 (FR2) band, the coverage performance of sidelink based on omnidirectional antenna transmission and reception is limited. To further enhance UE coverage, beam-based transmission and reception are considered, thus requiring research into beam management in the sidelink. In beam-based transmission in the sidelink, beam failure may occur due to UE mobility, building obstruction, or other reasons, necessitating beam failure recovery.

[0155] In related technologies, such as the New Radio (NR) Uu interface, the beam failure recovery triggering procedure is as follows:

[0156] Step a: The UE measures the reference signal received power (RSRP, RSRP) of the corresponding reference signal;

[0157] Step b: Determine whether the measured RSRP is lower than the preset threshold of the higher layer. If it is lower than the preset threshold, the physical layer on the UE side sends a beam failure instance indication to the Media Access Control (MAC) layer, and at the same time increments its counter BFI_counter for the number of beam failures by 1.

[0158] Step c: If the accumulated value of BFI_counter is greater than the threshold of the counter pre-configured by the higher layer, namely the maximum count value of beam failure instances (beamFailureInstanceMaxCount), the beam failure recovery process is triggered within the pre-configured beam failure detection time.

[0159] In related technologies, such as NR Uu, if periodic Channel-State-Information Reference Signal (CSI-RS) is used for beam quality measurement, the base station's transmission of the reference signal is relatively stable and reliable, and the receiving UE can calculate the RSRP using the corresponding CSI-RS time-frequency resources. However, in sidelink, if the beam failure recovery process in the sidelink is designed with the concept of NR Uu in mind, and periodic CSI-RS is used for beam quality measurement, at certain times when periodic transmission of CSI-RS is required, the transmitting UE may not transmit the corresponding beam measurement CSI-RS under the following circumstances due to the following characteristics: 1. In scenarios with half-duplex characteristics, data may not be able to be transmitted in some transmission directions at certain times. For example, at the same time, uplink transmission may not be possible during downlink transmission; 2. Other high-priority data may be transmitted; 3. The resources for transmitting CSI-RS are occupied by other UEs.

[0160] For the receiving UE, it cannot know when the periodic CSI-RS time-frequency resources of the sending UE are occupied. When the RSRP measured at the time when these CSI-RS time-frequency resources are occupied is lower than the preset threshold, it will mistakenly believe that the RSRP drop is due to the deterioration of link quality, and thus send a beam failure instance indication to the MAC layer.

[0161] Please see Figure 1b If multiple time-frequency resources used by the transmitting UE for periodically transmitting CSI-RS are occupied, the receiving UE will send beam failure instance indication to the MAC layer multiple times, causing BFI_counter to exceed the threshold and falsely triggering the beam failure recovery mechanism.

[0162] In summary, in the relevant technologies, the receiving UE cannot know when the periodic CSI-RS time-frequency resources of the sending UE are occupied. Incorrectly measuring non-existent CSI-RS can lead to the false triggering of the beam failure recovery process, and may result in incorrect beam switching.

[0163] Figure 2a This is an interactive schematic diagram illustrating an information indication method according to an embodiment of the present disclosure. For example... Figure 2a As shown, this disclosure relates to an information indication method for a communication system 100, the method comprising:

[0164] Step S2101: The first terminal sends the first information to the second terminal.

[0165] In some embodiments, the second terminal receives the first information sent by the first terminal.

[0166] In some embodiments, the first information may be a feedback codebook.

[0167] In some embodiments, the first terminal and the second terminal are the two ends of the sidelink communication.

[0168] In some embodiments, the first information indicates that the first terminal measures the measurement result obtained by the first terminal from the first reference signal received on the first resource.

[0169] In some embodiments, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal on the first resource.

[0170] For example, the second terminal sends a first reference signal to the first terminal; when the first terminal receives the first reference signal on the first resource, the first terminal measures the wireless transmission quality (e.g., RSRP) of the first reference signal on the first resource, and the value corresponding to the measured wireless transmission quality can be the measurement result.

[0171] In some embodiments, the first resource is a time-frequency resource, which includes time-domain and / or frequency-domain resources. For example, the first resource is a periodic resource, such as a periodic CSI-RS time-frequency resource.

[0172] In some embodiments, the first resource is the time-domain and / or frequency-domain resource of the first terminal receiving the first reference signal on the beam.

[0173] In some embodiments, the beam may include a transmit beam and a receive beam. In a scenario where the second terminal communicates with the first terminal, if the second terminal transmits a first reference signal to the first terminal on the beam, then the second terminal is transmitting the first reference signal to the first terminal on the transmit beam. Correspondingly, the first terminal may be receiving the first reference signal on the receive beam. The transmit beam and the receive beam may appear in pairs.

[0174] In some embodiments, after the transmit beam used by the second terminal to transmit the first reference signal is switched, the first terminal can also adaptively switch the receive beam used to receive the first reference signal. For example, the first transmit beam and the first receive beam are beams that appear in pairs. After the first transmit beam is switched to the second transmit beam, the first receive beam can also be switched to the second receive beam, wherein the first receive beam and the second receive beam are beams that appear in pairs.

[0175] In some embodiments, time-domain resources may be system frames, subframes, slots, or symbols.

[0176] In some embodiments, frequency domain resources may be system bandwidth, resource blocks (RBs), or subcarriers.

[0177] In some embodiments, the first reference signal may be CSI-RS.

[0178] In some embodiments, the first reference signal is transmitted on the first resource.

[0179] In some embodiments, the measurement results may include the results of the wireless transmission quality of the first reference signal obtained by measurement.

[0180] In some embodiments, the wireless transmission quality can be one of the following:

[0181] RSRP;

[0182] Reference Signal Receiving Quality (RSRQ);

[0183] Signal to Interference plus Noise Ratio (SINR).

[0184] In some embodiments, the first information (or measurement result) and the second information are used by the second terminal to determine whether to switch the beam or not;

[0185] In some embodiments, the second information is the determination result of the second terminal actually transmitting the first reference signal on the first resource.

[0186] In some embodiments, the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0187] In some embodiments, in response to the first terminal detecting for the first time that the wireless transmission quality of the first reference signal on the first resource is less than a first threshold, the wireless transmission quality of the first and / or subsequent n times is recorded to obtain a measurement result; wherein n is an integer greater than or equal to 1.

[0188] In some embodiments, the first terminal retains the measurement result of the corresponding RSRP from the first time it detects that the corresponding RSRP is lower than a preset threshold on the periodic CSI-RS time-frequency resource.

[0189] In some embodiments, the first terminal generates a feedback bit for each corresponding periodic CSI-RS time-frequency resource.

[0190] In some embodiments, the measurement result is indicated by a feedback bit corresponding to a first resource. For example, one first resource corresponds to one feedback bit.

[0191] In some embodiments, obtaining the measurement results may include: determining the value of the feedback bit corresponding to each first resource based on the wireless transmission quality detected on each first resource.

[0192] In some embodiments, if the wireless transmission quality is determined to be less than a first threshold, the value of the feedback bit is determined to be a first value. For example, the first value is 0.

[0193] In some embodiments, if the wireless transmission quality is determined to be greater than or equal to a first threshold, the value of the feedback bit is determined to be a second value. For example, the second value is 1.

[0194] In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is lower than a first threshold, the feedback bit corresponding to the CSI-RS time-frequency resource is set to 0.

[0195] In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is higher than a first threshold, the feedback bit corresponding to the CSI-RS time-frequency resource is set to 1.

[0196] In some embodiments, the first information includes a feedback codebook. The measurement result is indicated by the feedback bits of the feedback codebook.

[0197] In some embodiments, the feedback bit corresponds to the first resource.

[0198] In some embodiments, in response to determining that a second number of feedback bits contained in the feedback codebook is less than a third threshold, the first terminal completes the feedback bits of the feedback codebook based on the feedback timing.

[0199] In some embodiments, the number of feedback bits in the completed feedback codebook is equal to the third threshold.

[0200] In some embodiments, the first terminal provides a complete feedback codebook on the feedback resource.

[0201] In some embodiments, see Figure 2b The first terminal supplements the feedback bits according to the feedback timing relationship pre-configured by the periodic CSI-RS resources, and sets all the supplemented feedback bits to 1.

[0202] In some embodiments, for the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the second resource are padded into the feedback codebook; wherein, the second resource is the resource before the first resource corresponding to the first threshold when the wireless transmission quality of the first reference signal is detected to be less than the first threshold.

[0203] In some embodiments, for the CSI-RS time-frequency resource before the first detection of beam failure, if its feedback resource is the same as the feedback resource of the feedback codebook, the bits corresponding to the CSI-RS time-frequency resource are added to the feedback codebook.

[0204] In some embodiments, for the third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the third resource are padded into the feedback codebook; wherein, the third resource is the resource after the count of the Beam Failure Instance (BFI) counter is greater than the first resource corresponding to the fourth threshold.

[0205] In some embodiments, for CSI-RS time-frequency resources after BFI_counter equals a preset threshold, if their feedback resources are the same as the feedback resources of the feedback codebook, then the feedback bits corresponding to the CSI-RS time-frequency resources are added to the feedback codebook.

[0206] In some embodiments, the value of the bits used for padding is set to a second value.

[0207] In some embodiments, in response to the BFI counter count being greater than a fourth threshold, the first terminal sends first information to the second terminal.

[0208] In some embodiments, the first terminal sends first information to the second terminal via a beam failure recovery request message.

[0209] In some embodiments, based on the RSRP measurement results, when BFI_counter exceeds the fourth threshold, the first terminal triggers the beam failure recovery mechanism and sends a beam failure recovery request message carrying the first information to the second terminal on the corresponding feedback resource.

[0210] In some embodiments, see Figure 2c A feedback codebook is generated based on the measurement results corresponding to the CSI-RS time and frequency resources.

[0211] Step S2102: The second terminal determines whether to switch beams.

[0212] In some embodiments, the second terminal determines whether to switch beams based on the first information.

[0213] In some embodiments, the second terminal determines whether to switch or not to switch beams based on the first information and the second information of the second terminal actually transmitting the first reference signal on the first resource.

[0214] In some embodiments, the beam that the second terminal determines to switch or not switch may be the transmission beam.

[0215] In some embodiments, after the second terminal switches its transmit beam, the first terminal can adaptively switch its receive beam. For example, at a first moment, the second terminal transmits a first reference signal through a first transmit beam, and the first terminal receives the first reference signal through a first receive beam. At a second moment, the second terminal switches its first transmit beam to a second transmit beam to transmit the first reference signal. At this time, the first terminal can adapt to the beam switching on the second terminal side and can switch to receiving the first reference signal by using a second receive beam adapted to the second transmit beam.

[0216] In some embodiments, based on first information, it is determined whether the first resource is occupied by a signal other than the first reference signal.

[0217] In some embodiments, if the first resource is occupied by a signal other than the first reference signal, it is determined that the first reference signal was not actually transmitted on the first resource.

[0218] In some embodiments, based on first information and second information about the second terminal actually transmitting the first reference signal on the first resource, a second quantity of the first resource corresponding to the degradation of wireless transmission quality due to beam quality degradation is determined.

[0219] In some embodiments, the wireless transmission quality corresponding to the first resource is less than a first threshold.

[0220] In some embodiments, the decision to switch or not switch beams is made based on a second quantity.

[0221] Please see Figure 2d The second quantity is 2.

[0222] In some embodiments, determining that a first quantity is greater than or equal to a second threshold determines the beam switching.

[0223] In some embodiments, if the first quantity is determined to be less than or equal to the second threshold, it is determined not to switch beams.

[0224] In some embodiments, the term "information" may be used interchangeably with terms such as "message," "signal," "signaling," "report," "configuration," "indication," "instruction," "command," "channel," "parameter," "field," and "data."

[0225] In some embodiments, the term "send" may be used interchangeably with terms such as "transmit," "report," or "transmit."

[0226] The information indication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as a standalone embodiment, and step S2102 may be implemented as a standalone embodiment. For example, step S2101 combined with step S2102 may be implemented as a standalone embodiment, but is not limited thereto.

[0227] Figure 3a This is a flowchart illustrating an information indication method according to an embodiment of the present disclosure. Figure 3a As shown, this embodiment of the disclosure relates to an information indication method, executed by a first terminal 101. The method includes:

[0228] Step S3101: Send the first message.

[0229] In some embodiments, optional implementations of step S3101 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0230] In some embodiments, the first information is sent to a first terminal, but it is not limited to this; the first information may also be sent to other entities.

[0231] Figure 3b This is a flowchart illustrating an information indication method according to an embodiment of the present disclosure. Figure 3b As shown, this embodiment of the disclosure relates to an information indication method, executed by a first terminal 101. The method includes:

[0232] Step S3201: Send the first message;

[0233] Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0234] In some embodiments, first information is sent to a second terminal.

[0235] The first reference signal is the Channel State Information Reference Signal (CSI-RS).

[0236] In some embodiments, the method further includes:

[0237] If the wireless transmission quality of the first reference signal detected on the first resource is less than the first threshold, the wireless transmission quality of the first and / or subsequent n times is recorded to obtain the measurement result.

[0238] Where n is an integer greater than or equal to 1.

[0239] In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; obtaining the measurement result includes:

[0240] Based on the detected wireless transmission quality on each first resource, the value of the feedback bit corresponding to each first resource is determined.

[0241] In some embodiments, the value of the feedback bit corresponding to each first resource is determined based on the detected radio transmission quality on each first resource, including at least one of the following:

[0242] If the wireless transmission quality is determined to be less than the first threshold, the value of the feedback bit is determined to be the first value.

[0243] Determine that the wireless transmission quality is greater than or equal to the first threshold, and determine that the value of the feedback bit is the second value.

[0244] In some embodiments, the measurement result is indicated by feedback bits in a feedback codebook, the feedback bits corresponding to a first resource; the method further includes:

[0245] If the second number of feedback bits in the feedback codebook is less than the third threshold, the feedback bits in the feedback codebook are supplemented based on the feedback timing.

[0246] The number of feedback bits in the completed feedback codebook is equal to the third threshold.

[0247] In some embodiments, the value of the bits used for padding is set to a second value.

[0248] In some embodiments, the feedback bits for completing the feedback codebook based on the feedback timing include at least one of the following:

[0249] For the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the second resource are padded into the feedback codebook; wherein, the second resource is the resource before the first resource corresponding to the first threshold when the wireless transmission quality of the first reference signal is detected to be less than the first threshold.

[0250] For the third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the third resource are padded into the feedback codebook; wherein, the third resource is the resource after the count of the beam failure instance BFI counter is greater than the first resource corresponding to the fourth threshold.

[0251] In some embodiments, sending first information to the second terminal includes:

[0252] Once it is determined that the count of the BFI counter is greater than the fourth threshold, the first information is sent to the second terminal.

[0253] In some embodiments, sending first information to the second terminal includes:

[0254] The first message is sent to the second terminal via a beam failure recovery request message.

[0255] Figure 4a This is a flowchart illustrating an information indication method according to an embodiment of the present disclosure. Figure 4a As shown, this embodiment of the disclosure relates to an information indication method, executed by a second terminal 102. The method includes:

[0256] Step S4101: Obtain the first information.

[0257] In some embodiments, optional implementations of step S4101 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0258] In some embodiments, the terminal receives first information sent by a first terminal, but is not limited thereto; it may also receive first information sent by other entities.

[0259] In some embodiments, the second terminal obtains first information as defined by the protocol.

[0260] In some embodiments, the second terminal obtains the first information from the upper layer(s).

[0261] In some embodiments, the second terminal processes the information to obtain the first information.

[0262] In some embodiments, step S3101 is omitted, and the second terminal autonomously implements the function indicated by the first information, or the above function is default or default.

[0263] Step S4102: Determine whether to switch beams.

[0264] In some embodiments, optional implementations of step S4102 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2102, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0265] The information indication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4102. For example, step S4101 may be implemented as a standalone embodiment, and step S4102 may be implemented as a standalone embodiment. For example, step S4101 combined with step S4102 may be implemented as a standalone embodiment, but is not limited thereto.

[0266] Figure 4b This is a flowchart illustrating an information indication method according to an embodiment of the present disclosure. Figure 4b As shown, this embodiment of the disclosure relates to an information indication method, executed by a second terminal 102. The method includes:

[0267] Step S4201: Receive first information, wherein the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource of the first terminal receiving the first reference signal on the beam.

[0268] In some embodiments, optional implementations of step S4201 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0269] Step S4202: Based on the first information and the second information, determine whether to switch the beam or not.

[0270] In some embodiments, the second information is used to determine whether the second terminal sends a first reference signal on the first resource.

[0271] In some embodiments, optional implementations of step S4202 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2102, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0272] In some embodiments, determining whether to switch or not switch beams based on first information and second information about the second terminal actually transmitting a first reference signal on a first resource includes:

[0273] Based on the first information and the second information of the second terminal actually transmitting the first reference signal on the first resource, a second quantity of the first resource corresponding to the decrease in wireless transmission quality due to beam quality degradation is determined; the wireless transmission quality corresponding to the first resource is less than the first threshold.

[0274] Based on the second quantity, determine whether to switch the beam or not.

[0275] In some embodiments, determining whether to switch or not switch beams based on a first quantity includes one of the following:

[0276] Once the first quantity is determined to be greater than or equal to the second threshold, the beam switching is determined.

[0277] If the first quantity is less than or equal to the second threshold, then the beam will not be switched.

[0278] In some embodiments, the first reference signal is a channel state information reference signal (CSI-RS).

[0279] In some embodiments, the measurement results are indicated by a feedback bit corresponding to a first resource; the value of the feedback bit corresponding to each first resource is determined based on the wireless transmission quality detected by the first terminal on each first resource.

[0280] In some embodiments, at least one of the following is included:

[0281] If the wireless transmission quality is less than the first threshold, the feedback bit will take the first value.

[0282] If the wireless transmission quality is greater than or equal to the first threshold, the feedback bit value is the second value.

[0283] In some embodiments, the measurement result is indicated by the feedback bits of the feedback codebook, and the feedback bits correspond to the first resource; the feedback bits of the feedback codebook are feedback bits padded based on the feedback timing when the number of bits contained in the feedback codebook is less than the third threshold; the number of feedback bits in the padded feedback codebook is equal to the third threshold.

[0284] In some embodiments, the value of the padded bits is set to a second value.

[0285] In some embodiments, receiving first information sent by the first terminal includes:

[0286] The first message sent by the first terminal is received via a beam failure recovery request message.

[0287] Figure 5a This is an interactive schematic diagram illustrating an information indication method according to an embodiment of the present disclosure. For example... Figure 5a As shown, this disclosure relates to an information indication method for a communication system 100, the method comprising one of the following steps:

[0288] Step S5101: The first terminal sends the first information to the second terminal.

[0289] In some embodiments, the first information indicates: a measurement result obtained by the first terminal measuring a first reference signal received on a first resource; the first resource is a time-domain and / or frequency-domain resource on which the first terminal receives the first reference signal on a beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

[0290] For optional implementations of step S5101, please refer to [link / reference]. Figure 2a Optional implementation methods of step S2101 and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0291] Step S5102: The second terminal determines whether to switch beams.

[0292] For optional implementations of step S5102, please refer to [link / reference]. Figure 2a Optional implementation methods of step S2102 and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0293] In some embodiments, the above method may include the methods of the first terminal side, the second terminal side, etc., as described above, which will not be repeated here.

[0294] Figure 6a This is an interactive schematic diagram illustrating an information indication method according to an embodiment of the present disclosure. For example... Figure 6a As shown, the embodiments of this disclosure relate to an information indication method, which includes:

[0295] Step S6101: Send feedback codebook.

[0296] In some embodiments, the feedback codebook may be included in the first information of this disclosure.

[0297] In some embodiments, the receiving UE (corresponding to the first terminal in this disclosure) retains the measurement result of the corresponding RSRP from the first time it detects that the corresponding RSRP is lower than the preset threshold (corresponding to the first threshold in this disclosure) on the periodic CSI-RS time-frequency resource (corresponding to the first resource in this disclosure).

[0298] In some embodiments, a feedback bit is generated on each corresponding periodic CSI-RS time-frequency resource:

[0299] In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is lower than a preset threshold, the feedback bit is set to 0;

[0300] In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is higher than a preset threshold, the feedback bit is set to 1;

[0301] In some embodiments, based on the RSRP measurement results, when BFI_counter exceeds a preset threshold, the receiving UE triggers the beam failure recovery mechanism, sends a beam failure recovery request message to the transmitting UE on the corresponding feedback resource, and simultaneously sends a feedback codebook generated based on the measurement results on the CSI-RS time-frequency resource. Here, the feedback codebook can be carried in the beam failure recovery request message.

[0302] In some embodiments, to avoid ambiguity in the understanding of the feedback codebook between the sending UE and the receiving UE, the supplemented feedback codebook should be fed back on the corresponding feedback resources. The receiving UE supplements the following feedback bits according to the feedback timing relationship pre-configured by the periodic CSI-RS resources, and sets all the supplemented feedback bits to 1.

[0303] In some embodiments, if the feedback resource of the CSI-RS time-frequency resource before the first detection of beam failure is the same as the feedback resource of the feedback codebook, it is added to the feedback codebook.

[0304] In some embodiments, for CSI-RS time-frequency resources after BFI_counter equals a preset threshold, if their feedback resources are the same as the feedback resources in the feedback codebook, they are added to the feedback codebook.

[0305] Step S6102: Determine whether to switch beams.

[0306] In some embodiments, the transmitting UE (corresponding to the second terminal in this disclosure) determines whether the corresponding CSI-RS time-frequency resources are occupied by other signals based on the received feedback codebook (ignoring the influence of supplementary bits);

[0307] In some embodiments, the transmitting UE determines the actual CSI-RS transmitted and the feedback bits where RSRP is below a threshold due to beam quality degradation;

[0308] In some embodiments, the transmitting UE determines whether to perform beam switching based on the aforementioned feedback bits.

[0309] In this embodiment of the disclosure, the receiving UE generates a feedback codebook based on the measurement results on the time-frequency resources of the corresponding beam measurement reference signal. The sending UE determines whether to perform beam switching based on the feedback codebook and the actual beam failure reference signal transmission status. This solves the problem that the receiving UE cannot know when the periodic CSI-RS time-frequency resources of the sending UE are occupied, and the incorrect measurement of non-existent CSI-RS leads to the accidental triggering of the beam failure recovery process, resulting in incorrect beam switching.

[0310] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0311] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0312] 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.

[0313] 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).

[0314] Figure 7a A schematic diagram of the terminal structure proposed in this disclosure embodiment is shown. (See attached diagram.) Figure 7a As shown, terminal 7100 may include at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module is used to send or receive first information. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2101, S3101, but not limited thereto) performed by terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps (e.g., steps S2102, S3102, but not limited thereto) performed by terminal 101 in any of the above methods, which will not be described in detail here.

[0315] 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.

[0316] 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. Optionally, the processing module may be interchangeable with a processor.

[0317] Figure 8a This is a schematic diagram of the structure of the communication device 8100 proposed in this embodiment. The communication device 8100 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 8100 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.

[0318] like Figure 8a As shown, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0319] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may also be located outside the communication device 8100.

[0320] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceivers 8103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S3101, but not limited thereto), and the processor 8101 performs at least one of other steps (e.g., steps S2102, S3102, but not limited thereto).

[0321] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0322] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0323] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in this disclosure is not limited thereto, and the structure of the communication device 8100 may vary. Figure 8a The limitations. The communication device can be a standalone device or part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0324] Figure 8b This is a schematic diagram of the structure of chip 8200 according to an embodiment of this disclosure. For cases where the communication device 8100 can be a chip or a chip system, please refer to... Figure 8b The diagram shown is a schematic representation of the structure of chip 8200, but it is not limited to this.

[0325] Chip 8200 includes one or more processors 8201, which are used to perform any of the above methods.

[0326] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to memory 8203, and the interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201.

[0327] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S3101, but not limited thereto), and the processor 8201 performs at least one of other steps (e.g., steps S2102, S3102, but not limited thereto).

[0328] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0329] In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memories 8203 may be located outside of chip 8200.

[0330] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 8100, cause the communication device 8100 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.

[0331] This disclosure also provides a program product that, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0332] 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. An information indication method, characterized in that, The method includes: The system receives first information sent by a first terminal, the first information indicating: the measurement result obtained by the first terminal measuring the first reference signal received on a first resource; the first resource is the time domain and / or frequency domain resource of the first terminal receiving the first reference signal on the beam; Based on the first information and the second information, it is determined whether to switch the beam or not; wherein, the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

2. The method according to claim 1, characterized in that, The step of determining whether to switch or not switch beams based on the first and second information includes: Based on the first information and the second information, a first quantity of the first resource corresponding to the decrease in wireless transmission quality due to beam quality degradation is determined; the wireless transmission quality corresponding to the first resource is less than a first threshold. Based on the first quantity, determine whether to switch the beam or not.

3. The method according to claim 2, characterized in that, The step of determining whether to switch or not switch beams based on the first quantity includes one of the following: Once the first quantity is determined to be greater than the second threshold, the beam switching is determined. If the first quantity is determined to be less than or equal to the second threshold, then it is determined not to switch beams.

4. The method according to claim 2, characterized in that, The first reference signal is the Channel State Information Reference Signal (CSI-RS).

5. The method according to claim 1, characterized in that, The measurement result is indicated by a feedback bit corresponding to the first resource; the value of the feedback bit corresponding to each first resource is determined based on the wireless transmission quality detected by the first terminal on each first resource.

6. The method according to claim 5, characterized in that, Includes at least one of the following: If the wireless transmission quality is less than a first threshold, the value of the feedback bit is a first value. The wireless transmission quality is greater than or equal to a first threshold, and the value of the feedback bit is a second value.

7. The method according to claim 1, characterized in that, The measurement result is indicated by the feedback bits of the feedback codebook, which correspond to the first resource; the feedback bits of the feedback codebook are feedback bits padded based on the feedback timing when the number of bits contained in the feedback codebook is less than the third threshold; the number of feedback bits in the padded feedback codebook is equal to the third threshold.

8. The method according to claim 7, characterized in that, The value of the supplemented feedback bit is set to the second value.

9. The method according to claim 1, characterized in that, The receipt of the first information sent by the first terminal includes: The first information sent by the first terminal is received via a beam failure recovery request message.

10. An information indication method, characterized in that, The method includes: Send the first information to the second terminal; Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

11. The method according to claim 10, characterized in that, The first reference signal is the Channel State Information Reference Signal (CSI-RS).

12. The method according to claim 10, characterized in that, The method further includes: If the wireless transmission quality of the first reference signal detected on the first resource for the first time is less than a first threshold, the wireless transmission quality of the first time and / or the subsequent n times is recorded to obtain the measurement result. Wherein, n is an integer greater than or equal to 1.

13. The method according to claim 12, characterized in that, The measurement result is indicated by a feedback bit corresponding to the first resource; obtaining the measurement result includes: Based on the wireless transmission quality detected on each of the first resources, the value of the feedback bit corresponding to each of the first resources is determined.

14. The method according to claim 13, characterized in that, The step of determining the value of the feedback bit corresponding to each first resource based on the wireless transmission quality detected on each first resource includes at least one of the following: If the wireless transmission quality is determined to be less than a first threshold, the value of the feedback bit is determined to be a first value. The wireless transmission quality is determined to be greater than or equal to a first threshold, and the value of the feedback bit is determined to be a second value.

15. The method according to claim 12, characterized in that, The measurement result is indicated by feedback bits in the feedback codebook, and the feedback bits correspond to the first resource; the method further includes: If the second number of feedback bits in the feedback codebook is less than the third threshold, the feedback bits of the feedback codebook are supplemented based on the feedback timing. The number of feedback bits in the completed feedback codebook is equal to the third threshold.

16. The method according to claim 15, characterized in that, The value of the feedback bit used for completion is set to the second value.

17. The method according to claim 15, characterized in that, The feedback bits used to complete the feedback codebook based on feedback timing include at least one of the following: For the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the second resource are padded into the feedback codebook; wherein, the second resource is the resource before the first resource corresponding to the first threshold is detected when the wireless transmission quality of the first reference signal is less than the first threshold. For the third resource, if the feedback resource of the third resource is the same as the feedback resource of the feedback codebook, the feedback bits corresponding to the third resource are padded into the feedback codebook; wherein, the third resource is the resource after the count of the beam failure instance BFI counter is greater than the first resource corresponding to the fourth threshold.

18. The method according to claim 10, characterized in that, Sending the first information to the second terminal includes: Once it is determined that the count of the BFI counter is greater than the fourth threshold, the first information is sent to the second terminal.

19. The method according to claim 10, wherein, Sending the first information to the second terminal includes: The first information is sent to the second terminal via a beam failure recovery request message.

20. A terminal, characterized in that, The terminal includes: The transceiver module is configured to send the first information to the second terminal; Wherein, the first information indicates: the measurement result obtained by the first terminal measuring the first reference signal received on the first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on the beam; the first information and the second information are used by the second terminal to determine whether to switch beams; the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

21. A terminal, characterized in that, The terminal includes: The transceiver module is configured to receive first information sent by a first terminal, wherein the first information indicates: the measurement result obtained by the first terminal measuring a first reference signal received on a first resource; the first resource is the time domain and / or frequency domain resource on which the first terminal receives the first reference signal on a beam; The processing module is configured to: determine whether to switch or not switch beams based on the first information and the second information; wherein the second information is used to determine whether the second terminal transmits the first reference signal on the first resource.

22. A communication system, characterized in that, The communication system includes a first terminal and a second terminal; the second terminal is configured to implement the information indication method according to any one of claims 1 to 9, and the first terminal is configured to implement the information indication method according to any one of claims 10 to 19.

23. A terminal, characterized in that, The terminal includes: One or more processors; The terminal is used to execute the information indication method according to any one of claims 1 to 9.

24. A terminal, characterized in that, The terminal includes: One or more processors; The terminal is used to execute the information indication method according to any one of claims 10 to 19.

25. A storage medium, characterized in that, The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the information indication method according to any one of claims 1 to 9 and 10 to 19.

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