Information indication methods, terminals, communication system and storage medium

Abstract

Provided in the embodiments of the present disclosure are information indication methods, terminals, a communication system and a storage medium. One method comprises: 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, and the first resource being a time domain and / or frequency domain resource for the first terminal to receive the first reference signal on a beam; and on the basis of the first information and second information, determining whether to switch the beam, the second information being used for determining whether a second terminal sends the first reference signal on the first resource. In this way, beam management is more accurate.

Description

Information indication method, terminal, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an information indication method, a terminal, a communication system, and a storage medium. Background Art

[0002] In the field of communications technology, sidelinks support direct communication between terminals. Sidelink communication can be based on omnidirectional antenna transmission and reception. Beam-based transmission and reception can also be used, necessitating research on beam management in sidelinks.

[0003] Summary of the Invention

[0004] In related technologies, beam management may be inaccurate or even erroneous.

[0005] Embodiments of the present disclosure provide an information indication method, a terminal, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided an information indication method, the method comprising:

[0007] receiving first information sent by a first terminal, where the first information indicates: a measurement result obtained by the first terminal by measuring a first reference signal received on a first resource; the first resource is a time domain and / or frequency domain resource for the first terminal to receive the first reference signal on a beam;

[0008] Based on the first information and the second information, determine whether to switch the beam; wherein the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0009] According to a second aspect of an embodiment of the present disclosure, there is provided an information indication method, the method comprising:

[0010] Sending the first information to the second terminal;

[0011] The first information indicates: a 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 for the first terminal to receive 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; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0012] According to a third aspect of an embodiment of the present disclosure, there is provided an information indication method, the method comprising:

[0013] The first terminal sends first information to the second terminal;

[0014] 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 for the first terminal to receive 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 or not to switch the beam; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0016] a transceiver module, configured to send first information to the second terminal;

[0017] The first information indicates: a 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 for the first terminal to receive 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; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0018] According to a fifth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0019] a transceiver module configured to receive first information sent by a first terminal, where the first information indicates a measurement result obtained by the first terminal by measuring a first reference signal received on a first resource; the first resource being a time domain and / or frequency domain resource for receiving the first reference signal on a beam by the first terminal;

[0020] The processing module is configured to: determine whether to switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0021] According to the sixth aspect of an embodiment 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 by the first aspect, and the network device is configured to implement the information indication method provided by the second aspect.

[0022] According to a seventh aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0023] one or more processors;

[0024] Wherein, the terminal is used to execute the information indication method described in the first aspect.

[0025] According to an eighth aspect of an embodiment of the present disclosure, a terminal is provided, the terminal including:

[0026] one or more processors;

[0027] Wherein, the terminal is used to execute the information indication method described in the second aspect.

[0028] According to the ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information indication method provided by the first aspect, the second aspect or the third aspect.

[0029] The technical solution provided by the embodiments of the present disclosure can accurately manage beams.

[0030] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0032] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0033] FIG1b is a schematic diagram showing an erroneous measurement reference signal according to an exemplary embodiment;

[0034] FIG2a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0035] FIG2b is a schematic diagram showing a feedback codebook according to an exemplary embodiment;

[0036] FIG2c is a schematic diagram showing a feedback codebook according to an exemplary embodiment;

[0037] FIG2 d is a schematic diagram showing a feedback codebook according to an exemplary embodiment;

[0038] FIG3a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0039] FIG3 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0040] FIG4a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0041] FIG4 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0042] FIG5a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0043] FIG6a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0044] FIG7a is a schematic structural diagram of a first information indicating device according to an exemplary embodiment;

[0045] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0046] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0047] Embodiments of the present disclosure provide an information indication method, a terminal, a communication system, and a storage medium.

[0048] In a first aspect, an embodiment of the present disclosure provides an information indication method, the method comprising:

[0049] receiving first information sent by a first terminal, where the first information indicates: a measurement result obtained by the first terminal by measuring a first reference signal received on a first resource; the first resource is a time domain and / or frequency domain resource for the first terminal to receive the first reference signal on a beam;

[0050] Based on the first information and the second information, determine whether to switch the beam; wherein the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0051] In the above embodiment, 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 based on the first information and the second information. Compared with not sending the first information and / or determining whether to switch the beam based only on the measurement result, the situation of incorrect beam switching is reduced and the accuracy of beam switching is improved.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether to switch the beam based on the first information and the second information includes:

[0053] Determining, based on the first information and the second information, a first quantity of the first resources corresponding to a decrease in wireless transmission quality due to a decrease in beam quality; the wireless transmission quality corresponding to the first resources is less than a first threshold;

[0054] Based on the first number, it is determined whether to switch the beam or not.

[0055] In the above embodiment, since the first quantity of the first resources corresponding to the degradation of wireless transmission quality due to degradation of beam quality can be determined based on the first information and the second information, the first quantity can be determined excluding the degradation of wireless transmission quality due to other factors. In this way, it can be determined whether to switch the beam or not based on the size of the first quantity.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether to switch the beam or not based on the first number includes one of the following:

[0057] Determining that the first number is greater than or equal to a second threshold, and determining to switch beams;

[0058] Determine that the first number is less than or equal to a second threshold, and determine not to switch the beam.

[0059] In the above embodiment, whether to switch the beam can be adapted to the size of the first number. In essence, it can be adapted to the situation where the wireless transmission quality is reduced due to the reduction in beam quality, and whether to switch the beam can be accurately determined.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the first reference signal is a channel state information reference signal CSI-RS.

[0061] In the above embodiment, the accuracy of beam switching in the measurement scenario using CSI-RS can be achieved.

[0062] In combination 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.

[0063] In the above embodiment, at least one of the following is included:

[0064] The wireless transmission quality is less than a first threshold, and the value of the feedback bit is a first value;

[0065] The wireless transmission quality is greater than or equal to a first threshold, and the value of the feedback bit is a second value.

[0066] In the above embodiment, the quality of wireless transmission can be reflected by setting different values ​​of the feedback bits.

[0067] In combination with some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; the feedback bit of the feedback codebook is a feedback bit supplemented based on feedback timing when the number of bits included in the feedback codebook is less than a third threshold; the number of feedback bits of the supplemented feedback codebook is equal to the third threshold.

[0068] In the above embodiment, when the number of feedback codebooks is insufficient, the number of feedback bits may be supplemented based on the feedback timing so that the supplemented number of feedback bits is equal to the third threshold, thereby facilitating analysis by the second terminal.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the value of the completed feedback bit is set to the second value.

[0070] In the above embodiment, the inaccurate influence of the completed feedback bits on beam switching can be reduced.

[0071] With reference to some embodiments of the first aspect, in some embodiments, the receiving the first information sent by the first terminal includes:

[0072] The first information sent by the first terminal is received through a beam failure recovery request message.

[0073] In the above embodiment, the beam failure recovery request message can be reused to receive the first information. Compared with setting a special message to send the first information, it can reduce signaling overhead and resource occupancy, and improve resource utilization and communication efficiency.

[0074] In a second aspect, an embodiment of the present disclosure provides an information indication method, the method comprising:

[0075] Sending the first information to the second terminal;

[0076] The first information indicates: a 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 for the first terminal to receive 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; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0077] In combination with some embodiments of the first aspect, in some embodiments, the first reference signal is a channel state information reference signal CSI-RS.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0079] Determining that the radio transmission quality of the first reference signal detected for the first time on the first resource is less than a first threshold, recording the radio transmission quality for the first time and / or subsequent n times, and obtaining the measurement result;

[0080] Wherein, n is an integer greater than or equal to 1.

[0081] In the above embodiment, after the degradation of the wireless transmission quality of the first reference signal is detected for the first time, the measurement result may be promptly acquired and reported to the second terminal.

[0082] 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; and obtaining the measurement result includes:

[0083] Based on the wireless transmission quality detected corresponding to each first resource, a value of the feedback bit corresponding to each first resource is determined.

[0084] In the above embodiment, the wireless transmission qualities detected on different first resources may be fed back via different feedback bits.

[0085] 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 corresponding to each first resource includes at least one of the following:

[0086] Determining that the wireless transmission quality is less than a first threshold, and determining that a value of the feedback bit is a first value;

[0087] Determine that the wireless transmission quality is greater than or equal to a first threshold, and determine that a value of the feedback bit is a second value.

[0088] In combination with some embodiments of the first aspect, in some embodiments, the measurement result is indicated by a feedback bit of a feedback codebook, and the feedback bit corresponds to the first resource; and the method further includes:

[0089] determining that a second number of feedback bits included in the feedback codebook is less than a third threshold, and completing the feedback bits of the feedback codebook based on the feedback timing;

[0090] The number of feedback bits in the completed feedback codebook is equal to the third threshold.

[0091] In the above embodiment, when the number of feedback codebooks is insufficient, the number of feedback bits may be supplemented based on the feedback timing so that the supplemented number of feedback bits is equal to the third threshold, thereby facilitating analysis by the second terminal.

[0092] In combination with some embodiments of the first aspect, in some embodiments, the value of the bit used for completion is set to the second value.

[0093] In conjunction with some embodiments of the first aspect, in some embodiments, the completing the feedback bits of the feedback codebook based on the feedback timing includes at least one of the following:

[0094] For a second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, completing the feedback bit corresponding to the second resource into the feedback codebook; wherein the second resource is a resource before the first resource corresponding to the first resource in which the radio transmission quality of the first reference signal is detected for the first time to be less than the first threshold;

[0095] 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 bit corresponding to the third resource is completed into the feedback codebook; wherein the third resource is a resource after the first resource corresponding to the fourth threshold whose count number of the beam failure instance BFI counter is greater than that of the third resource.

[0096] In the above embodiment, the second resource and the feedback bit corresponding to the second resource may be supplemented, and the feedback timing may be adapted.

[0097] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second terminal includes:

[0098] Determine that the count number of the BFI counter is greater than a fourth threshold, and send the first information to the second terminal.

[0099] In the above embodiment, in this way, when the wireless transmission quality is poor, timely feedback can be given to the second terminal to notify the second terminal to switch beams in time.

[0100] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second terminal includes:

[0101] The first information is sent to the second terminal via a beam failure recovery request message.

[0102] In the above embodiment, the beam failure recovery request message can be reused to send the first information. Compared with setting a special message to send the first information, it can reduce signaling overhead and resource occupancy, and improve resource utilization and communication efficiency.

[0103] In a third aspect, an embodiment of the present disclosure provides an information indication method, characterized in that the method includes:

[0104] The first terminal sends first information to the second terminal;

[0105] 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 for the first terminal to receive 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 or not to switch the beam; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0106] In a fourth aspect, an embodiment of the present disclosure provides a terminal, characterized in that the terminal includes:

[0107] a transceiver module, configured to send first information to the second terminal;

[0108] The first information indicates: a 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 for the first terminal to receive 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; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0109] In a fifth aspect, an embodiment of the present disclosure provides a terminal, characterized in that the terminal includes:

[0110] The transceiver module is configured to receive first information sent by a first terminal, where the first information indicates a measurement result obtained by the first terminal by measuring a first reference signal received on a first resource; the first resource is a time domain and / or frequency domain resource for the first terminal to receive the first reference signal on a beam;

[0111] The processing module is configured to: determine whether to switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0112] In the sixth aspect, an embodiment of the present disclosure provides an information indication system, wherein the communication system includes a first terminal and a second terminal, the first terminal is configured to implement the information indication method described in the optional implementation manner of the first aspect, and the second terminal is configured to implement the information indication method described in the optional implementation manner of the second aspect.

[0113] In a seventh aspect, an embodiment of the present disclosure provides a terminal, the terminal including:

[0114] one or more processors;

[0115] Among them, the terminal is used to execute the information indication method provided by the first aspect.

[0116] In an eighth aspect, an embodiment of the present disclosure provides a terminal, the terminal including:

[0117] one or more processors;

[0118] Among them, the terminal is used to execute the information indication method provided by the second aspect.

[0119] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the information indication method described in the optional implementation of the first and second aspects.

[0120] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0121] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0122] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0123] It is understandable that the above-mentioned terminals, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0124] The embodiments of the present disclosure provide an information indication method, a terminal communication system, and a storage medium. In some embodiments, the information indication method, information processing method, information transmission method, and other terms are interchangeable, and the communication system, information processing system, and other terms are interchangeable.

[0125] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain 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 certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0126] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0127] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0128] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0129] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0130] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0131] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0132] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0133] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0134] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0135] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0136] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "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" can be replaced with each other.

[0137] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0138] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0139] 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", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0140] 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.

[0141] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0142] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0143] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0144] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0145] As shown in Figure 1a, a 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 is not limited here.

[0146] In some embodiments, the network device may include at least one of an access network device and a core network device.

[0147] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0148] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0149] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0150] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0151] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element 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), and a Next Generation Core (NGC).

[0152] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0153] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1a, or a portion thereof, but are not limited thereto. The entities shown in Figure 1a are illustrative only. The communication system may include all or part of the entities shown in Figure 1a, or may include other entities other than those shown in Figure 1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0154] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0155] In some embodiments, the sidelink link can support direct communication between UEs. The sidelink communication method is based on the transmission and reception of omnidirectional antennas. In the Frequency Range 2 (FR2) band, the coverage performance of the sidelink reception and transmission based on omnidirectional antennas is limited. To further enhance the coverage performance of the UE, the use of beam-based reception and transmission is considered. Therefore, it is necessary to study beam management in the sidelink. In the sidelink beam-based transmission, beam failure may occur due to UE mobility, building obstruction, or other reasons, and beam failure recovery is required.

[0156] In related technologies, such as the New Radio (NR) Uu interface, the triggering process for beam failure recovery is as follows:

[0157] Step a: The UE measures the reference signal received power (RSRP, RSRP) of the corresponding reference signal;

[0158] Step b: Determine whether the measured RSRP is lower than a threshold preset by a higher layer. If so, the UE-side physical layer sends a beam failure instance indication to the media access control (MAC) layer, and increments its beam failure counter BFI_counter by 1.

[0159] Step c: If the accumulated value of BFI_counter is greater than the threshold of the counter pre-configured by the higher layer: beam failure instance maximum count value (beamFailureInstanceMaxCount) within the pre-configured beam failure detection time, the beam failure recovery process is triggered.

[0160] In related technologies, such as NR Uu, if a periodic Channel State Information Reference Signal (CSI-RS) is used for beam quality measurement, the base station can send reference signals more stably and reliably, and the receiving UE can calculate RSRP based on the corresponding CSI-RS time-frequency resources. In sidelink, if the beam failure recovery process in the sidelink is designed with reference to the concepts in NR Uu, and periodic CSI-RS is used for beam quality measurement, at certain times when periodic CSI-RS transmission is required, the transmitting UE may not transmit the CSI-RS for corresponding beam measurement in the following situations due to the following characteristics: 1. In a half-duplex scenario, data may not be transmitted in some transmission directions at certain times. For example, downlink transmission cannot be performed at the same time as uplink transmission; 2. Other high-priority data may be transmitted; 3. The resources for transmitting CSI-RS are occupied by other UEs.

[0161] For the receiving UE, it cannot know at which moments the periodic CSI-RS time-frequency resources of the sending UE are occupied. When the RSRP measured at the moments when these CSI-RS time-frequency resources are occupied is lower than the preset threshold, it will mistakenly believe that the RSRP drop is caused by the degradation of link quality, and thus send a beam failure instance indication to the MAC layer.

[0162] Please refer to Figure 1b. If multiple time-frequency resources used by the transmitting UE for periodic CSI-RS transmission are occupied, the receiving UE sends beam failure instance indication to the MAC layer multiple times, causing the BFI_counter to exceed the threshold and falsely triggering the beam failure recovery mechanism.

[0163] In summary, in the related art, the receiving UE cannot know at which moments the periodic CSI-RS time-frequency resources of the transmitting UE are occupied, and incorrectly measuring the non-existent CSI-RS leads to the false triggering of the beam failure recovery process, which may cause incorrect beam switching.

[0164] FIG2a is an interactive diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG2a, the embodiment of the present disclosure relates to an information indication method, which is used in a communication system 100 and includes:

[0165] Step S2101: The first terminal sends first information to the second terminal.

[0166] In some embodiments, the second terminal receives the first information sent by the first terminal.

[0167] In some embodiments, the first information may be a feedback codebook.

[0168] In some embodiments, the first terminal and the second terminal are two ends of sidelink communication.

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

[0170] In some embodiments, the first information indicates: a measurement result obtained by the first terminal measuring the first reference signal on the first resource.

[0171] Exemplarily, 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 (for example, 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.

[0172] In some embodiments, the first resource is a time-frequency resource, which includes time domain and / or frequency domain resources. Exemplarily, the first resource is a periodic resource, for example, the first resource is a periodic CSI-RS time-frequency resource.

[0173] In some embodiments, the first resource is a time domain and / or frequency domain resource used by the first terminal to receive the first reference signal on a beam.

[0174] 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 sends a first reference signal to the first terminal on the beam, the second terminal sends the first reference signal to the first terminal on the transmit beam. Correspondingly, the first terminal may receive the first reference signal on the receive beam. The transmit beam and the receive beam may appear in pairs.

[0175] In some embodiments, after the second terminal switches the transmit beam used to transmit the first reference signal, the first terminal may 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 paired beams. After the first transmit beam is switched to the second transmit beam, the first receive beam may also be switched to the second receive beam. The first receive beam and the second receive beam are paired beams.

[0176] In some embodiments, the time domain resource may be a system frame, a subframe, a time slot, or a symbol.

[0177] In some embodiments, the frequency domain resource may be a system bandwidth, a resource block (RB) or a subcarrier.

[0178] In some embodiments, the first reference signal may be a CSI-RS.

[0179] In some embodiments, the first reference signal is sent on a first resource.

[0180] In some embodiments, the measurement result may include a result of measuring the radio transmission quality of the obtained first reference signal.

[0181] In some embodiments, the wireless transmission quality may be one of the following:

[0182] RSRP;

[0183] Reference Signal Receiving Quality (RSRQ);

[0184] Signal to Interference plus Noise Ratio (SINR)

[0185] In some embodiments, the first information (or measurement result) and the second information are used by the second terminal to determine whether to switch or not switch the beam;

[0186] In some embodiments, the second information is a determination result of whether the second terminal actually sends the first reference signal on the first resource.

[0187] In some embodiments, the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0188] In some embodiments, in response to the first terminal detecting for the first time on the first resource that the wireless transmission quality of the first reference signal is less than a first threshold, the wireless transmission quality for the first time and / or subsequent n times is recorded to obtain a measurement result; wherein n is an integer greater than or equal to 1.

[0189] In some embodiments, the first terminal retains the measurement result of the corresponding RSRP starting from the first time it detects that the corresponding RSRP is lower than a preset threshold on the periodic CSI-RS time-frequency resource.

[0190] In some embodiments, the first terminal generates a feedback bit for each corresponding periodic CSI-RS time-frequency resource.

[0191] In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource. Exemplarily, one first resource corresponds to one feedback bit.

[0192] In some embodiments, obtaining the measurement result may include: determining a value of a feedback bit corresponding to each first resource based on the wireless transmission quality detected corresponding to each first resource.

[0193] In some embodiments, it is determined that the wireless transmission quality is less than a first threshold, and the value of the feedback bit is determined to be a first value. Exemplarily, the first value is 0.

[0194] In some embodiments, it is determined that the wireless transmission quality is greater than or equal to a first threshold, and the value of the feedback bit is determined to be a second value. Exemplarily, the second value is 1.

[0195] In some embodiments, if the RSRP measured on the CSI-RS time-frequency resource is lower than a first threshold (thres), the feedback bit corresponding to the CSI-RS time-frequency resource is set to 0.

[0196] 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.

[0197] In some embodiments, the first information includes a feedback codebook, and the measurement result is indicated by a feedback bit of the feedback codebook.

[0198] In some embodiments, the feedback bit corresponds to the first resource.

[0199] In some embodiments, in response to determining that the second number of feedback bits included 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.

[0200] In some embodiments, the number of feedback bits in the completed feedback codebook is equal to a third threshold.

[0201] In some embodiments, the first terminal feeds back the completed feedback codebook on the feedback resource.

[0202] In some embodiments, referring to FIG. 2 b , the first terminal supplements feedback bits according to the feedback timing relationship preconfigured by the periodic CSI-RS resource, and sets all the supplemented feedback bits to 1.

[0203] 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 bit corresponding to the second resource is completed 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 for the first time.

[0204] In some embodiments, for the CSI-RS time-frequency resources before the first detection of beam failure, if their feedback resources are the same as the feedback resources of the feedback codebook, the bits corresponding to the CSI-RS time-frequency resources are added to the feedback codebook.

[0205] 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 completed into the feedback codebook; wherein the third resource is a resource after the first resource corresponding to the fourth threshold whose count number of the beam failure instance (BFI) counter is greater than that of the third resource.

[0206] In some embodiments, for a CSI-RS time-frequency resource after BFI_counter is equal to a preset threshold, if its feedback resource is the same as the feedback resource in the feedback codebook, the feedback bits corresponding to the CSI-RS time-frequency resource are added to the feedback codebook.

[0207] In some embodiments, the value of the bit used for completion is set to the second value.

[0208] In some embodiments, in response to a count number of the BFI counter being greater than a fourth threshold, the first terminal sends the first information to the second terminal.

[0209] In some embodiments, the first terminal sends the first information to the second terminal via a beam failure recovery request message.

[0210] In some embodiments, according to the RSRP measurement result, when BFI_counter exceeds a fourth threshold, the first terminal triggers a 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.

[0211] In some embodiments, referring to FIG. 2 c , a feedback codebook is generated according to measurement results corresponding to CSI-RS time-frequency resources.

[0212] Step S2102: The second terminal determines whether to switch the beam.

[0213] In some embodiments, the second terminal determines whether to switch the beam based on the first information.

[0214] In some embodiments, the second terminal determines whether to switch the beam based on the first information and second information that the second terminal actually sends the first reference signal on the first resource.

[0215] In some embodiments, the beam that the second terminal determines to switch or not to switch may be a transmission beam.

[0216] 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 via the first transmit beam, and the first terminal receives the first reference signal via the first receive beam. At a second moment, the second terminal switches from transmitting the first reference signal via the first transmit beam to transmitting the first reference signal via the second transmit beam. At this point, the first terminal can adapt to the second terminal's side beam switching and switch to receiving the first reference signal via the second receive beam that is compatible with the second transmit beam.

[0217] In some embodiments, based on the first information, it is determined whether the first resource is occupied by a signal other than the first reference signal.

[0218] 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 is not actually transmitted on the first resource.

[0219] In some embodiments, based on the first information and the second information that the second terminal actually sends the first reference signal on the first resource, a second number of first resources corresponding to the degradation of wireless transmission quality due to the degradation of beam quality is determined.

[0220] In some embodiments, the wireless transmission quality corresponding to the first resource is less than a first threshold;

[0221] In some embodiments, a determination is made to switch or not switch the beam based on the second number.

[0222] Please see Figure 2d, the second number is 2.

[0223] In some embodiments, determining that the first number is greater than or equal to a second threshold determines switching the beam.

[0224] In some embodiments, it is determined that the first number is less than or equal to a second threshold, and it is determined not to switch the beam.

[0225] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0226] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0227] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 and S2102. For example, step S2101 may be implemented as an independent embodiment, and step S2102 may be implemented as an independent embodiment. For example, step S2101 combined with step S2102 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0228] FIG3a is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG3a, the embodiment of the present disclosure relates to an information indication method, which is executed by the first terminal 101 and includes:

[0229] Step S3101: Send the first information.

[0230] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0231] In some embodiments, the first information is sent to the first terminal, but is not limited thereto. The first information may also be sent to other entities.

[0232] FIG3b is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to an information indication method, which is executed by the first terminal 101 and includes:

[0233] Step S3201: Sending first information;

[0234] Among them, 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 for the first terminal to receive 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; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0235] In some embodiments, the first information is sent to the second terminal.

[0236] The first reference signal is a channel state information reference signal CSI-RS.

[0237] In some embodiments, the method further comprises:

[0238] Determining that the radio transmission quality of the first reference signal detected for the first time on the first resource is less than a first threshold, recording the radio transmission quality for the first time and / or subsequent n times, and obtaining a measurement result;

[0239] Wherein, n is an integer greater than or equal to 1.

[0240] In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; and obtaining the measurement result includes:

[0241] Based on the wireless transmission quality detected corresponding to each first resource, a value of the feedback bit corresponding to each first resource is determined.

[0242] In some embodiments, determining a value of a feedback bit corresponding to each first resource based on the corresponding detected wireless transmission quality on each first resource includes at least one of the following:

[0243] Determining that the wireless transmission quality is less than a first threshold, and determining that a value of the feedback bit is a first value;

[0244] It is determined that the wireless transmission quality is greater than or equal to a first threshold, and a value of the feedback bit is determined to be a second value.

[0245] In some embodiments, the measurement result is indicated by a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; and the method further includes:

[0246] determining that a second number of feedback bits included in the feedback codebook is less than a third threshold, and completing the feedback bits of the feedback codebook based on the feedback timing;

[0247] The number of feedback bits in the completed feedback codebook is equal to the third threshold.

[0248] In some embodiments, the value of the bit used for completion is set to the second value.

[0249] In some embodiments, completing the feedback bits of the feedback codebook based on the feedback timing includes at least one of the following:

[0250] For the second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, completing the feedback bit corresponding to the second resource into the feedback codebook; wherein the second resource is the resource before the first resource corresponding to the first resource where the wireless transmission quality of the first reference signal is detected for the first time to be less than the first threshold;

[0251] 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 bit corresponding to the third resource is completed in the feedback codebook; wherein the third resource is the resource after the first resource corresponding to the fourth threshold whose count number of the beam failure instance BFI counter is greater than that of the third resource.

[0252] In some embodiments, sending the first information to the second terminal includes:

[0253] Determine that the count number of the BFI counter is greater than a fourth threshold, and send first information to the second terminal.

[0254] In some embodiments, sending the first information to the second terminal includes:

[0255] The first information is sent to the second terminal via a beam failure recovery request message.

[0256] FIG4a is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG4a, the embodiment of the present disclosure relates to an information indication method, which is executed by the second terminal 102 and includes:

[0257] Step S4101: Obtain first information.

[0258] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0259] In some embodiments, the terminal receives the first information sent by the first terminal, but is not limited thereto, and may also receive the first information sent by other entities.

[0260] In some embodiments, the second terminal obtains first information specified by the protocol.

[0261] In some embodiments, the second terminal obtains the first information from an upper layer(s).

[0262] In some embodiments, the second terminal performs processing to obtain the first information.

[0263] In some embodiments, step S3101 is omitted, the second terminal autonomously implements the function indicated by the first information, or the above function is default or acquiescent.

[0264] Step S4102: Determine whether to switch beams.

[0265] In some embodiments, the optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0266] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S4101 and S4102. For example, step S4101 may be implemented as an independent embodiment, and step S4102 may be implemented as an independent embodiment. For example, step S4101 combined with step S4102 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0267] FIG4 b is a flow chart of an information indication method according to an embodiment of the present disclosure. As shown in FIG4 b , the present disclosure embodiment relates to an information indication method, which is executed by the second terminal 102 and includes:

[0268] Step S4201: Receive first information, where 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 for the first terminal to receive the first reference signal on a beam.

[0269] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0270] Step S4202: Determine whether to switch the beam based on the first information and the second information.

[0271] In some embodiments, the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0272] In some embodiments, the optional implementation of step S4202 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0273] In some embodiments, determining whether to switch the beam based on the first information and second information that the second terminal actually sends the first reference signal on the first resource includes:

[0274] Determining, based on the first information and second information that the second terminal actually sends the first reference signal on the first resource, a second number of first resources corresponding to a decrease in wireless transmission quality due to a decrease in beam quality; the wireless transmission quality corresponding to the first resource is less than a first threshold;

[0275] Based on the second number, it is determined whether to switch the beam or not.

[0276] In some embodiments, determining whether to switch the beam or not based on the first quantity includes one of the following:

[0277] Determining that the first number is greater than or equal to a second threshold value, and determining to switch the beam;

[0278] Determine that the first number is less than or equal to a second threshold, and determine not to switch the beam.

[0279] In some embodiments, the first reference signal is a channel state information reference signal CSI-RS.

[0280] In some embodiments, the measurement result is indicated by a feedback bit corresponding to the first resource; and a 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.

[0281] In some embodiments, at least one of the following is included:

[0282] The wireless transmission quality is less than a first threshold, and the value of the feedback bit is a first value;

[0283] The wireless transmission quality is greater than or equal to the first threshold, and the value of the feedback bit is the second value.

[0284] In some embodiments, the measurement result is indicated by a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; the feedback bit of the feedback codebook is a feedback bit supplemented based on feedback timing when the number of bits included in the feedback codebook is less than a third threshold; the number of feedback bits in the supplemented feedback codebook is equal to the third threshold.

[0285] In some embodiments, the value of the complemented bit is set to the second value.

[0286] In some embodiments, receiving first information sent by a first terminal includes:

[0287] The first information sent by the first terminal is received through a beam failure recovery request message.

[0288] Figure 5a is an interactive diagram of an information indication method according to an embodiment of the present disclosure. As shown in Figure 5a, the present disclosure embodiment relates to an information indication method, which is used in a communication system 100 and includes one of the following steps:

[0289] Step S5101: The first terminal sends first information to the second terminal.

[0290] 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 for the first terminal to receive 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 the beam; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

[0291] The optional implementation of step S5101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0292] Step S5102: The second terminal determines whether to switch beams.

[0293] The optional implementation of step S5102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0294] In some embodiments, the above method may include the methods of the above-mentioned first terminal side, second terminal side, etc. embodiments, which will not be repeated here.

[0295] Figure 6a is an interactive diagram of an information indication method according to an embodiment of the present disclosure. As shown in Figure 6a, the embodiment of the present disclosure relates to an information indication method, which includes:

[0296] Step S6101: Send feedback codebook.

[0297] In some embodiments, the feedback codebook may be included in the first information of the present disclosure.

[0298] In some embodiments, the receiving UE (corresponding to the first terminal in the present disclosure) retains the measurement result of the corresponding RSRP from the first time it detects that the corresponding RSRP is lower than a preset threshold (corresponding to the first threshold in the present disclosure) on the periodic CSI-RS time-frequency resource (corresponding to the first resource in the present disclosure).

[0299] In some embodiments, one feedback bit is generated on each corresponding periodic CSI-RS time-frequency resource:

[0300] 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;

[0301] 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;

[0302] In some embodiments, based on the RSRP measurement results, when the 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 at the same time 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.

[0303] In some embodiments, to avoid ambiguity in the understanding of the feedback codebook between the sending UE and the receiving UE, the completed feedback codebook should be fed back on the corresponding feedback resource. The receiving UE supplements the following feedback bits according to the feedback timing relationship preconfigured by the periodic CSI-RS resource, and sets all the supplemented feedback bits to 1.

[0304] In some embodiments, for the CSI-RS time-frequency resources before the first detection of beam failure, if the feedback resources thereof are the same as the feedback resources in the feedback codebook, they are added to the feedback codebook;

[0305] In some embodiments, for CSI-RS time-frequency resources after BFI_counter is equal to a preset threshold, if the feedback resources thereof are the same as the feedback resources in the feedback codebook, they are added to the feedback codebook.

[0306] Step S6102: Determine whether to switch beams.

[0307] In some embodiments, the transmitting UE (corresponding to the second terminal in the present disclosure) determines whether the corresponding CSI-RS time-frequency resource is occupied by other signals (ignoring the influence of the supplementary bit) based on the received feedback codebook;

[0308] In some embodiments, the transmitting UE determines that the CSI-RS is actually transmitted and the RSRP is lower than a threshold due to the degradation of beam quality;

[0309] In some embodiments, based on the above feedback bits, the transmitting UE decides whether to perform beam switching.

[0310] In the disclosed embodiment, the receiving UE generates a feedback codebook based on the measurement results on the corresponding beam measurement reference signal time-frequency resources, and the sending UE determines whether to perform beam switching at this time based on the feedback codebook and the actual beam failure reference signal transmission status. This solves the problem that the receiving UE cannot know at which moments the periodic CSI-RS time-frequency resources of the sending UE are occupied, and incorrectly measures a non-existent CSI-RS, resulting in the erroneous triggering of the beam failure recovery process and thus erroneous beam switching.

[0311] In the embodiments of the present disclosure, 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 of other embodiments.

[0312] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0313] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0314] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution 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 relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by 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 implementing the hardware circuit configuration 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. In addition, 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), a deep learning processing unit (DPU), etc.

[0315] Figure 7a is a schematic structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 7a, the 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 the first information. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S3101, but not limited to this) executed by the terminal 101 in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps (for example, step S2102, step S3102, but not limited to this) executed by the terminal 101 in any of the above methods, which will not be repeated here.

[0316] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0317] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0318] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0319] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0320] 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.

[0321] 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 transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S3101, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S2102 and step S3102, but not limited thereto).

[0322] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0323] 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. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0324] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0325] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0326] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0327] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0328] 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 (for example, step S2101, step S3101, but not limited to this), and the processor 8201 performs at least one of the other steps (for example, step S2102, step S3102, but not limited to this).

[0329] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0330] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0331] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute 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 is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0332] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0333] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. An information indication method, characterized in that: The method comprises: Receive first information sent by a first terminal, where 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 for the first terminal to receive the first reference signal on a beam; Based on the first information and the second information, determine whether to switch the beam; wherein the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

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

3. The method according to claim 2, characterized in that The determining, based on the first number, to switch or not switch the beam comprises one of the following: Determine that the first number is greater than or equal to a second threshold, and determine to switch the beam; Determine that the first number is less than or equal to a second threshold, and determine not to switch the beam.

4. The method according to claim 2, characterized in that: The first reference signal is a 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; and a 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 Include at least one of the following: The wireless transmission quality is less than a first threshold, and 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 a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; the feedback bit of the feedback codebook is a feedback bit supplemented based on feedback timing when the number of bits included in the feedback codebook is less than a third threshold; and the number of feedback bits of the supplemented feedback codebook is equal to the third threshold.

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

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

10. An information indication method, characterized in that: The method comprises: Sending first information to the second terminal; Among them, 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 for the first terminal to receive 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 the beam; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

11. The method according to claim 10, characterized in that The first reference signal is a channel state information reference signal CSI-RS.

12. The method according to claim 10, characterized in that The method further comprises: Determine that the wireless transmission quality of the first reference signal detected for the first time on the first resource is less than a first threshold, record the wireless transmission quality for the first time and / or subsequent n times, and 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; and obtaining the measurement result includes: Based on the wireless transmission quality detected corresponding to each first resource, a value of the feedback bit corresponding to each first resource is determined.

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

15. The method according to claim 12, characterized in that The measurement result is indicated by a feedback bit of a feedback codebook, where the feedback bit corresponds to the first resource; and the method further includes: determining that a second number of feedback bits included in the feedback codebook is less than a third threshold, and completing the feedback bits of the feedback codebook 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 completing the feedback bits of the feedback codebook based on the feedback timing includes at least one of the following: For a second resource, if the feedback resource of the second resource is the same as the feedback resource of the feedback codebook, the feedback bit corresponding to the second resource is completed into the feedback codebook; wherein the second resource is a resource before the first resource corresponding to the first threshold is detected for the first time when the wireless transmission quality of the first reference signal is less than; 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 bit corresponding to the third resource is completed into the feedback codebook; wherein the third resource is a resource after the count number 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 The sending the first information to the second terminal includes: Determine that the count number of the BFI counter is greater than a fourth threshold, and send the first information to the second terminal.

19. The method according to claim 10, wherein: The 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. An information indication method, characterized in that: The method comprises: The first terminal sends first information to the second terminal; Among them, 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 for the first terminal to receive 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 or not to switch the beam; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

21. A terminal, characterized in that: The terminal comprises: A transceiver module, configured to send first information to the second terminal; Among them, 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 for the first terminal to receive 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 the beam; the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

22. A terminal, characterized in that: The terminal comprises: The transceiver module is configured to receive first information sent by a first terminal, where 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 for the first terminal to receive the first reference signal on a beam; The processing module is configured to: determine whether to switch or not to switch the beam based on the first information and the second information; wherein the second information is used to determine whether the second terminal sends the first reference signal on the first resource.

23. A communication system, characterized in that: The information indication system includes a first terminal and a second terminal; the first terminal is configured to implement the information indication method described in any one of claims 1 to 10, and the second terminal is configured to implement the information indication method described in any one of claims 11 to 19.

24. A terminal, characterized in that: The terminal comprises: one or more processors; The terminal is used to execute the information indication method according to any one of claims 1 to 10.

25. A terminal, characterized in that: The terminal comprises: one or more processors; The terminal is used to execute the information indication method according to any one of claims 11 to 19.

26. A storage medium, characterized in that: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the information indication method according to any one of claims 1 to 10 and claims 11 to 19.

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