Beam reporting method and device, storage medium and program product

Abstract

The embodiment of the invention provides a beam reporting method and device, a storage medium and a program product, relates to the technical field of communication, and can solve the technical problem that beam selection cannot be quickly and efficiently performed due to too many reported measurement results. The method comprises the following steps: sending a beam report to a second node; wherein the beam report comprises respective beam information of N beams, the N beams comprise P first-class beams and Q second-class beams, the first-class beams have first-class channel state parameters, and the second-class beams have second-class channel state parameters; the beam information of the first type of beams and the beam information of the second type of beams in the beam report comprise beam identifiers, N, P and Q are non-negative integers, and the sum of P and Q is equal to N.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a beam reporting method, apparatus, storage medium, and program product. Background Art

[0002] In the communication process between a base station and a user equipment, the base station may use a transmission beam to cover a certain spatial area to communicate with the user equipment corresponding to the spatial area. Since there are multiple transmission beams that the base station can use and different transmission beams have different communication effects, it is necessary for the user equipment to report the beam information of each transmission beam to the base station.

[0003] Currently, the effective communication between the user equipment and the base station depends on accurate beam selection. Traditionally, the user equipment needs to exhaustively scan multiple beams in the network to obtain and report measurement results so that the base station can select the optimal beam.

[0004] However, in the case of dynamic changes in the network environment or limited reporting resources, obtaining and reporting measurement results through exhaustive scanning may result in significant measurement power consumption. And due to too many reported measurement results, when the reporting resources are limited, the reporting speed is slow, and beam selection cannot be performed quickly and efficiently, which affects the performance of the communication network and the user experience. Summary of the Invention

[0005] Embodiments of the present disclosure provide a beam reporting method, apparatus, storage medium, and program product, which can solve the technical problem that beam selection cannot be performed quickly and efficiently due to too many reported measurement results.

[0006] On the one hand, a beam reporting method is provided, which is applied to a first node and includes: sending a beam report to a second node; wherein the beam report includes the beam information of N beams respectively, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams in the beam report both include a beam identifier (beamID), N, P, and Q are non-negative integers, and the sum of P and Q is equal to N. The first-type beams are associated with a first-type set, the second-type beams are associated with a second-type set, and the two sets are associated with each other and may have at least the following characteristics: the two sets appear in a channel state information report (csi report) resource set at the same time; the two sets are one large and one small; one set is a subset of the other set)

[0007] On the other hand, a beam reporting device is provided, which is applied to a first node and includes: a sending module; the sending module is configured to send a beam report to a second node; wherein, the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, and the beam information of the first-type beams and the beam information of the second-type beams in the beam report both include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

[0008] On the other hand, a beam reporting method is provided, which is applied to a second node. The method includes: sending a beam report to the second node; wherein, the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, and the beam information of the first-type beams and the beam information of the second-type beams in the beam report both include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

[0009] On the other hand, a beam reporting device is provided, which is applied to a second node and includes: a receiving module; the receiving module is configured to receive the beam report sent by the first node; wherein, the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, and the beam information of the first-type beams and the beam information of the second-type beams in the beam report both include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

[0010] On the other hand, a communication device is provided, which includes: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; when the processor executes the computer program, the method provided in any of the above embodiments is implemented.

[0011] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the method provided in any of the above embodiments is implemented.

[0012] On the other hand, a computer program product is provided, which includes computer program instructions. When the computer program instructions are executed by a processor, the method provided in any of the above embodiments is implemented.

[0013] An embodiment of the present disclosure provides a beam reporting method, which sends a beam report to a second node; wherein, the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams in the beam report include beam identifiers, and N, P, and Q are positive integers, and the sum of P and Q is equal to N. Since the N beams are not all beams, it is not necessary to report the beam information of all beams. In addition, the beam information in the beam report includes beam identifiers, and the beam identifiers require fewer transmission resources than the measurement results of the beams. Therefore, the problem of slow reporting speed caused by a large amount of reporting content when the reporting resources are limited can be solved, thereby ensuring the performance of the communication network and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0015] Figure 1 The architecture diagram of a beam reporting system provided by some embodiments of the present disclosure;

[0016] Figure 2 The flowchart of a beam reporting method provided by some embodiments of the present disclosure;

[0017] Figure 3 The schematic diagram of the transmit beam and receive beam provided by some embodiments of the present disclosure;

[0018] Figure 4 The schematic diagram of the quantization step changing with the exponent provided by some embodiments of the present disclosure;

[0019] Figure 5 The structural schematic diagram of a beam reporting device provided by some embodiments of the present disclosure;

[0020] Figure 6 The structural schematic diagram of a communication device provided by some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the present disclosure will be clearly and completely described below with reference to the drawings in the present disclosure. Obviously, the described embodiments are only some embodiments of the present disclosure, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present disclosure belong to the scope of protection of the present disclosure.

[0022] It should be noted that in this disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0023] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0024] In the description of this disclosure, unless otherwise specified, " / " means "or". For example, A / B may mean A or B. The "and / or" herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition,

[0025] "At least one" means one or more, and "a plurality" means two or more.

[0026] With the rapid development of wireless communication technology, the resources in the low-frequency band are becoming increasingly tense, and the millimeter-wave band with more spectrum resources and bandwidth has become an important band for future wireless beam reporting systems. However, the wavelength of the millimeter-wave band is shorter, and its propagation conditions are much harsher than those of the traditional sub-6GHz band, including high path loss and sensitivity to blockage. To overcome this problem, millimeter-wave signals usually need to be beamformed to concentrate the signal energy in a small angular space to form a more gainful beamforming beam. Beam management realizes the alignment of the beam directions of the transmitter and the receiver by establishing and maintaining a suitable beam pair, thereby obtaining the best transmission performance. Beam management is crucial for millimeter-wave beam reporting systems and includes beam scanning, beam measurement, beam reporting, and beam indication, etc.

[0027] Among them, beam scanning refers to the process in which a base station or a user equipment (UE) sequentially uses different analog beams to cover a spatial area. During beam scanning, the base station or UE sequentially transmits beams from the entire codebook or a subset of the codebook to find a good transceiver beam pair for data and control channels. The beam scanning process mainly includes a transmitter beam scanning P-2 process and a receiver beam scanning P-3 process. Specifically, in the P-2 process or the P-3 process, the base station configures a high-layer parameter resource set (non-zero power channel state information reference signal resource set, NZP-CSI-RS-ResourceSet), and each resource set contains multiple channel state information reference signal resources (CSI-RS) or synchronization signal / physical broadcast channel block resources (SSB) transmitted with different transmit beams. The UE uses a fixed receive beam to receive and measure the CSI-RS or SSB resources to complete the P-2 process or the P-3 process. In addition, if the base station does not provide auxiliary information about the receive beam on the UE side, the UE may need to cycle through receive beams, that is, the CSI-RS resource set for beam management is repeatedly transmitted multiple times, and the UE receives them using different receive beams respectively, so as to realize the scanning of the receive beam.

[0028] After beam scanning or beam measurement, the UE reports the results of beam scanning or beam measurement to the network (NW), so that the network can accurately perform beam selection or determine the channel quality of multiple beam pairs respectively, thereby ensuring the effectiveness of communication between the network and the UE.

[0029] Currently, after the UE completes beam scanning, the UE needs to exhaustively scan multiple beams in the network and report the measurement results so that the network side can select the optimal beam. However, in the case of dynamic changes in the network environment, the UE may need to re-measure and report the measurement results, or the content that the UE needs to report may increase, or in the case of limited reporting resources, there is a problem that it takes a long time to report the measurement results. Therefore, the current beam reporting method may lead to significant training overhead, measurement power consumption, and processing delay, thus affecting network performance and user experience.

[0030] To solve the above technical problems, an embodiment of the present disclosure provides a beam reporting method, which is applied to a first node and includes sending a beam report to a second node; wherein, the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams in the beam report include beam identifiers, and N, P, and Q are positive integers, and the sum of P and Q is equal to N. Since the content included in the beam information in the beam report is the beam identifier, and the beam identifier occupies less network resources than reporting measurement results, the problem of excessive reporting content during beam reporting can be solved.

[0031] The beam reporting method provided by the embodiment of the present disclosure can be applied to a beam reporting system such as Figure 1 the one described below. As Figure 1 shown in the figure, the beam reporting system includes: a first node 101 and a second node 102.

[0032] Among them, the first node 101 and the second node 102 are communicatively connected. The first node 101 may be a user equipment. The second node 102 may be a base station.

[0033] Among them, the first node 101 is used to send a beam report to the second node 102, and the beam report includes beam information of each of N beams, and the beam information includes a beam identifier, and N is a positive integer.

[0034] The second node 102 is used to receive the beam report.

[0035] Exemplarily, the first node may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, as well as a cellular phone, a personal digital assistant (PDA), an augmented reality (AR) / virtual reality (VR) device, and other devices.

[0036] Exemplarily, the second node may be a base station, an evolved node base station (eNB), a next generation node base station (gNB), a new radio eNB, a macro base station, a micro base station, a high-frequency base station, or a transmission and reception point (TRP), a non-3rd generation partnership project (3GPP) access network (such as WiFi) and / or a non-3GPP interworking function (N3IWF), etc.

[0037] It should be noted that Figure 1 is only an exemplary framework diagram, Figure 1 The number of devices included therein and the names of each device are not restricted.

[0038] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and service scenarios described in the embodiments of the present disclosure are for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art can know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0039] Next, the beam reporting method provided by the embodiments of the present disclosure will be introduced in detail with reference to the accompanying drawings.

[0040] The beam reporting method provided by the embodiments of the present disclosure can be applied to Figure 1 the first node 101 in the beam reporting system shown in Figure 2 shows a flowchart of a beam reporting method, as Figure 2 shown, the beam reporting method includes the following S201.

[0041] S201: Send a beam report to the second node.

[0042] Among them, the beam report includes the beam information of each of the N beams. The N beams include P first-type beams and Q second-type beams. The first-type beams have first-type channel state parameters, and the second-type beams have second-type channel state parameters. The beam information of the first-type beams and the beam information of the second-type beams in the beam report both include beam identifiers. N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

[0043] In some embodiments, the first type of channel state parameter is obtained based on measurement, and the second type of channel state parameter is obtained based on prediction.

[0044] In one implementation, the second type of channel state parameter is obtained based on the prediction of the second type of channel state parameter.

[0045] In one implementation, the second type of channel state parameter is obtained based on a channel state parameter prediction model. The channel state parameter prediction model is trained by the first type of channel state parameter.

[0046] In some embodiments, the beam report is one of the following: quasi-co-location (QCL) state, transmission configuration indicator (TCI) indication state, spatial relation (or referred to as spatial relation information), reference signal (RS), reference signal resource, spatial filter, precoding, channel state information report.

[0047] In some embodiments, the beam identifier is one of the following: quasi-co-location state index, transmission configuration indicator state index, spatial relation state indication, reference signal index, spatial filter index, precoding index, channel state information reference signal resource indication (CSI-RS resource indication), synchronization signal block resource indication (SSB resource indication, SSBRI), channel state information resource set identifier (CSI resource set ID), channel state information resource setting identifier (CSI resource setting ID), report setting identifier (report setting ID), bitmap, combined index.

[0048] In one implementation, the respective beam information of N beams in the beam report is arranged in order (sorted from high to low or from low to high) according to the channel state parameter (the first type of channel state parameter or the second type of channel state parameter) they have.

[0049] In one implementation, the beam information of P first type of beams and the beam information of Q second type of beams in the beam report are sorted separately. Among them, the beam information of P first type of beams is sorted according to their respective first type of channel state parameter, and the beam information of Q second type of beams is sorted according to their respective second type of channel state parameter.

[0050] In one implementation, the N beams included in the beam report are the beams corresponding to the reference signals transmitted by the second node, and the beam information of the N beams is determined by the first node based on the receiving beams of the first node. Among them, there are multiple types of transmitting beams of the second node and multiple types of receiving beams of the first node, and the above beam report is the beam report of N beams among the multiple transmitting beams of the second node determined by the first node based on one of the multiple receiving beams. The beamforming directions of the multiple receiving beams or the multiple transmitting beams are different from each other.

[0051] It can be understood that the first node can also determine the beam report corresponding to each receiving beam based on the multiple receiving beams and send it to the second node.

[0052] Exemplarily, as Figure 3 shown, the second node transmits information based on multiple transmitting beams, and the first node receives information based on multiple receiving beams. Among them, the beamforming directions of the multiple transmitting beams and the multiple receiving beams are different from each other.

[0053] In some embodiments, the beam information of the first type of beam further includes at least one of the following: the first type of channel state parameter, the first indication information. The first indication information is used to indicate the magnitude relationship between the first type of channel state parameter and the threshold.

[0054] In some embodiments, the beam information of the second type of beam further includes at least one of the following: the second type of channel state parameter, the second indication information; the second indication information is used to indicate the magnitude relationship between the second type of channel state parameter and the threshold.

[0055] In some embodiments, the relationship between the first type of channel state parameter or the second type of channel state parameter and the threshold includes one of the following: the first type of channel state parameter or the second type of channel state parameter is greater than the threshold, the first type of channel state parameter or the second type of channel state parameter is less than the threshold, the first type of channel state parameter or the second type of channel state parameter is equal to the threshold.

[0056] It should be understood that when the transmission resources are sufficient, the beam information of the first type of beam or the beam information of the second type of beam may further include the channel state parameter and the indication information; when the transmission resources are limited, the beam information of the first type of beam or the beam information of the second type of beam may further include the channel state parameter or the indication information.

[0057] In some embodiments, the first type of channel state parameter or the second type of channel state parameter may be one of the following: channel state information (CSI), reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), received signal strength indicator (RSSI), channel quality indicator (CQI), precoding matrix

[0058] indicator (PMI), rank indicator (RI), layer

[0059] indicator (LI), signal to noise ratio (SNR), block error rate (BLER), channel phase information, channel impulse response information, timing information, confidence level, confidence information, probability, channel matrix, precoding matrix, location, fingerprint recognition based on channel observation, identification information of line of sight (LOS) and non-line of sight (NLOS), timing based on channel measurement, angle based on channel measurement, possibility based on channel measurement.

[0060] In some embodiments, the first type of channel state parameter or the second type of channel state parameter may also be a new parameter based on channel measurement or an enhancement of an existing parameter based on channel measurement.

[0061] In one implementation, the probability of a beam is the probability that the second node determines the beam as the transmit beam.

[0062] It can be understood that when the first type of channel state parameter includes the reference signal received power, the first indication information is used to indicate the relationship between the reference signal received power and a threshold (the threshold can be a power threshold). When the first type of channel state parameter includes a probability, the first indication information is used to indicate the relationship between the probability and a threshold (the threshold can be a probability threshold). When the second type of channel state parameter includes the reference signal received power, the second indication information is used to indicate the relationship between the reference signal received power and a threshold (the threshold can be a power threshold). When the second type of channel state parameter includes a probability, the second indication information is used to indicate the relationship between the probability and a threshold (the threshold can be a probability threshold).

[0063] In one implementation, the first node determines the first type of channel state parameter and generates the first indication information based on the threshold and the first type of channel state parameter.

[0064] In one implementation, the first node determines the second type of channel state parameter and generates the second indication information based on the threshold and the second type of channel state parameter.

[0065] In some embodiments, the beam information of each beam reported by the first node corresponds to one resource, and the beam information of N beams corresponds to N resources.

[0066] In some embodiments, each of the N resources included in the beam report includes one information bit, and this one information bit is used to indicate the beam identifier.

[0067] In some embodiments, each of the N resources included in the beam report includes two information bits, and these two information bits are respectively used to indicate one of the following: beam identifier and reference signal received power, beam identifier and probability, beam identifier and indication information.

[0068] In some embodiments, each of the N resources included in the beam report includes three information bits, and these three information bits are respectively used to indicate the beam identifier, the reference signal received power, and the indication information, or are respectively used to indicate the beam identifier, the probability, and the indication information.

[0069] In some embodiments, the first type of beam is associated with the first type of set, and the second type of beam is associated with the second type of set.

[0070] Exemplarily, the beam information of the first type of beam may be included in the first type of set, and the beam information of the second type of beam may be included in the second type of set.

[0071] Exemplarily, the first type of set may include multiple first type of beams, and the second type of set may include multiple second type of beams.

[0072] Exemplarily, the first type of set and the second type of set may be report resource sets corresponding to beam reports.

[0073] In some embodiments, there is an association relationship between the first type of set and the second type of set.

[0074] In some embodiments, the association relationship between the first type of set and the second type of set satisfies at least one of the following:

[0075] The first type of set and the second type of set exist in the resource set of a beam report at the same time;

[0076] The size of one set in the first type of set and the second type of set is greater than the size of the other set;

[0077] One set in the first type of set and the second type of set is a subset of the other set.

[0078] In some embodiments, the P first type of beams are the top P beams with the largest first type of channel state parameters among all the first type of beams; the Q second type of beams are the top Q beams with the largest second type of channel state parameters among all the second type of beams.

[0079] In some embodiments, when N is 1, the N beams are the beams with the largest channel state parameters among all the beams.

[0080] In some embodiments, when N is 1, the N beams are the beams with the largest first type of channel state parameters among all the first type of beams.

[0081] In one implementation, when N is 1 and there are second type of channel state parameters equal to and the largest among the first type of channel state parameters, the beam with the first type of channel state parameters is used as the N beams.

[0082] In some embodiments, when P is 1, the P first type of beams are the beams with the largest first type of channel state parameters among all the first type of beams; the Q second type of beams are the top N - 1 beams with the largest second type of channel state parameters among all the second type of beams.

[0083] In some embodiments, one of the following preset conditions is satisfied between P and Q: preset ratio, preset difference, preset product value.

[0084] In some embodiments, the preset condition satisfied between P and Q is determined based on predefined or pre - configured.

[0085] In some embodiments, the preset condition satisfied between P and Q determined based on predefined can be implemented in the following way: the second node sends preset condition indication information to the first node, and the preset condition indication information is used to indicate the preset condition satisfied between P and Q.

[0086] In one implementation, P and Q satisfy a preset ratio A:B, where P = N*A / (A + B) and Q = N*B / (A + B). Here, A and B are positive integers.

[0087] It should be understood that the number of the first type of beams corresponds to the number of the beam information of the first type of beams. Since the first type of channel state parameters included in the beam information of the first type of beams are obtained through measurement, the second node needs to send reference information to the first node based on different beams so that the first node can measure the first type of channel state parameters corresponding to different beams. Therefore, the more the number of the first type of beams included in the beam report, the more beams the first node needs to measure, the more reference signals the second node sends, the longer the duration for generating the beam report, and the more resource consumption for generating the beam report. The number of the second type of beams corresponds to the number of the beam information of the second type of beams. Since the second type of channel state parameters in the beam information of the second type of beams are obtained through prediction, compared with that the first type of channel state parameters in the beam information of the first type of beams must be measured by the second node sending reference information, the first type of channel state parameters are easier to generate. Thus, the more the number of the first type of beams in the beam report, the shorter the duration for generating the beam report, and the less resource consumption caused by sending reference signals.

[0088] Therefore, the numbers P and Q in the beam report can be determined based on the number of available transmission resources for sending the beam report and the expected duration for generating the beam report, and are pre-configured between the first node and the second node.

[0089] On the other hand, since the second type of channel state parameters can be predicted by a model trained based on the first type of channel state parameters, the fewer the number of the first type of beams, the more likely the prediction accuracy of the second type of channel state parameters will decrease. Therefore, the number of the first type of beams measured by the first node should be higher than a number threshold, and this number threshold can make the prediction accuracy of the model meet the accuracy threshold.

[0090] In one implementation, the model for predicting the second type of channel state parameters can be pre-trained. In this way, the second node does not need to send reference information based on multiple beams, and the first node can accurately predict the second type of channel state parameters.

[0091] In some embodiments, all the first type of beams form a setB set, all the second type of beams form a setA set, the first type of channel state parameters are called B-type information, and the second type of channel state parameters are called A-type information.

[0092] In some embodiments, the setB set is a subset of the setA set.

[0093] In some embodiments, the number of beams in setB is less than the number of beams in setA.

[0094] In some embodiments, the first type of beam is a narrow beam and the second type of beam is a wide beam.

[0095] In some embodiments, setB and setA are sent from the second node to the first node.

[0096] In some embodiments, setB corresponds to SSB resources and setA corresponds to CSI-SR resources.

[0097] In some embodiments, the channel state parameters of the beams in setA and the channel state parameters of the beams in setB are used to train a prediction model for channel state parameters.

[0098] In some embodiments, the prediction model for channel state parameters can be an artificial intelligence (AI) model.

[0099] It should be noted that, in some embodiments, the model is used to describe the processing methods, functions, features, or feature groups that the UE can execute. The model can be one of the following: function, function, functional module, function module, processing method, information processing method, implementation, feature, feature group, configuration, configuration set, data set (such as the data set for model training), or data-driven algorithm. Different models can be associated with different configurations (for example, RRC (radio resource control) configuration). Model activation can refer to activating the corresponding configuration of the UE. Similarly, model deactivation, switching, and fallback can refer to deactivating the corresponding configuration, switching the configuration, and falling back to the configuration without a model, respectively.

[0100] In some embodiments, the channel state parameters of the beams in setA are input into the trained prediction model for channel state parameters to obtain the channel state parameters of the beams in setB.

[0101] In some embodiments, the first type of channel state parameter or the second type of channel state parameter included in the beam report is represented by a fixed-length bit sequence, where there are multiple bit values in the bit sequence, and one bit value is used to represent a value range. In this way, with a limited number of bit sequences, less transmission resources can be occupied to send the beam report.

[0102] It should be understood that since the value ranges represented by bit values may not be able to precisely represent the first type of channel state parameter or the second type of channel state parameter, the first node may also report the above first indication information or second indication information, so that the second node can obtain the magnitude relationship between the first type of channel state parameter or the second type of channel state parameter and the threshold, thereby being able to assist the second node in making numerical judgments to improve the reliability and accuracy of beam selection.

[0103] In some embodiments, beam information indicates the first type of channel state parameter or the second type of channel state parameter by a first bit sequence, and the values of the first bit sequence correspond to the value ranges of the first type of channel state parameter or the second type of channel state parameter.

[0104] In some embodiments, the length of the first bit sequence is determined based on bit number indication information, and the bit number indication information is pre-configured or predefined. Wherein, the bit number indication information includes the length of the first bit sequence or the position of each bit in the first bit sequence.

[0105] Exemplarily, the length of the first bit sequence may be 2 bits or 3 bits.

[0106] In some embodiments, the bit number indication information is determined based on a predefined manner by the following method: the second node sends the bit number indication information to the first node.

[0107] In one implementation, the length of the first bit sequence is related to the quantization step, and the quantization step is used to characterize the size of the value range of the first type of channel state parameter or the second type of channel state parameter corresponding to the value of the first bit sequence.

[0108] In one implementation, the quantization steps corresponding to all values of the first bit sequence are the same.

[0109] In one implementation, the quantization steps corresponding to at least two values of the first bit sequence are different from each other.

[0110] It should be understood that if the quantization steps corresponding to at least two values of the first bit sequence are different from each other, the corresponding precisions of these two values are also different. Thus, by representing different channel state parameters with values of different precisions, it is possible to more precisely report beam information to the second node in the case of uneven signal amplitude distribution, thereby ensuring the reliability and accuracy of beam selection or network optimization.

[0111] In one implementation, a mapping table is used to store the values of the first bit sequence and the value ranges of the first type of channel state parameter or the second type of channel state parameter; the same value of the first bit sequence in different mapping tables corresponds to different value ranges of the first type of channel state parameter or the second type of channel state parameter.

[0112] In some embodiments, the correspondence between the values of the first bit sequence and the value ranges of the first type of channel state parameters or the second type of channel state parameters is determined based on correspondence indication information.

[0113] In some embodiments, the correspondence indication information is sent by the second node to the first node.

[0114] In some embodiments, there are multiple correspondences, and the value ranges of the first type of channel state parameters or the second type of channel state parameters corresponding to the same value of the first bit sequence in different correspondences are different.

[0115] In one implementation, the beam information indicates the first type of channel state parameters or the second type of channel state parameters with a first bit sequence and a second bit sequence. The value of the first bit sequence corresponds to the value range of the first type of channel state parameters or the second type of channel state parameters, and the value of the second bit sequence corresponds to the offset value of the value range.

[0116] In one implementation, the offset value of the value range corresponding to the value of the second bit sequence is pre-configured or pre-defined. For example, increasing or decreasing a preset value, increasing or decreasing the upper limit or the lower limit.

[0117] It can be understood that, by means of the second bit sequence, without modifying the original mapping table of the first bit sequence, the modification of the value range corresponding to the value of the first bit sequence can be completed, so as to improve the accuracy of the quantization step corresponding to the value of the first bit sequence, and further improve the reliability and accuracy of beam selection or network optimization.

[0118] In one implementation, the second bit sequence is also referred to as a tolerance bit sequence.

[0119] Exemplarily, let the length of the first bit sequence be 3 and the length of the second bit sequence be 1.

[0120] Exemplarily, let the quantization step corresponding to a value in the first bit sequence be 1 and the length of the second bit sequence be 1; when the second bit sequence is 0, it is used to indicate subtracting one-half from the upper limit of the quantization step of this value; when the second bit sequence is 1, it is used to indicate adding one-half to the lower limit of the quantization step of this value.

[0121] Exemplarily, assume that the length of the second bit sequence is 2; the second bit sequence is 00, which is used to indicate subtracting three - quarters of the quantization step from the upper limit of the value range corresponding to the value of the first bit sequence. For example, changing 0 - 1 to 0 - 0.25; the second bit sequence is 01, which is used to indicate subtracting two - quarters of the quantization step from the upper limit of the value range and increasing the lower limit of the value range by one - quarter. For example, changing 0 - 1 to 0.25 - 0.5; the second bit sequence is 10, which is used to indicate subtracting one - quarter from the upper limit of the value range and increasing the lower limit of the value range by two - quarters. For example, 0 - 1 becomes 0.5 - 0.75; the second bit sequence is 11, which is used to indicate increasing the lower limit of the value range by three - quarters. For example, changing 0 - 1 to 0.75 - 1.

[0122] In some embodiments, the quantization step of the value range in the mapping table corresponding to the first bit sequence is adjusted to improve the quantization accuracy. For example, the quantization step corresponding to each value of the 4 - bit first bit sequence is adjusted from 1 to 0.5.

[0123] In some embodiments, the quantization steps corresponding to at least two values of the first bit sequence are different, which is also called multi - gradient quantization. Among them, the different quantization steps of the first bit sequence are related to the characteristics of the signals corresponding to the beams. For example, if the change rate of the channel state parameters of the signals corresponding to the beams is different in different value ranges, then the value range with a large change rate corresponds to a large quantization step, and the value range with a small change rate corresponds to a small quantization step.

[0124] Exemplarily, the value range can be determined based on the exponential function. Since the gradient change of the exponential function is relatively obvious, the exponential value range with a large gradient change has low accuracy, and the exponential value range with a small gradient change has high accuracy. Therefore, the channel state parameters with a large gap from the expected channel state parameters can be indicated based on the exponential value range with a large gradient change, and the channel state parameters with a small gap from the expected channel state parameters can be indicated based on the indicated value range with a small gradient change. Thus, different quantization accuracies can be adopted for different values of the first bit sequence (the smaller the quantization step, the higher the quantization accuracy). Based on the values with high quantization accuracy to indicate the channel state parameters with high importance or low change rate, the channel state parameters of a beam can be represented to the second node more flexibly and accurately.

[0125] Specifically, each value of the first bit sequence corresponds to an exponential function interval; for example, if the length of the first bit sequence is 3, the mapping relationship between the values of the first bit sequence and the value range satisfies Table 1 below:

[0126] Table 1

[0127] Value of the first bit sequence Value range 000 <![CDATA[[e -2 ,e -1.5 > 001 <![CDATA[[e -1.5 ,e -1 > 010 <![CDATA[[e -1 ,1]]]> 011 [1，e] 100 <![CDATA[[e, e 2 > 101 <![CDATA[[e 2 ,e 3 > 110 <![CDATA[[e 3 ,e 4 > 111 <![CDATA[[e 4 ,e 5 >

[0128] Such as Figure 4As shown, it is the variation of the quantization step of the value range in Table 1 with the exponent. Among them, as the value increases, the quantization step corresponding to the value range increases exponentially; the value range with a small quantization step is used to represent the numerical interval close to the expected channel state parameter, and the value range with a large quantization step is used to represent the numerical interval with a large gap from the expected channel state parameter.

[0129] It can be understood that in the case of limited transmission resources, the length of the first bit sequence will be reduced. At this time, due to the reduction of the length of the first bit sequence, the number of values of the first bit sequence becomes smaller, and the number of value ranges of the channel state parameter that can be represented becomes smaller. And because the overall value range of the channel state parameter to be reported remains unchanged, it will cause the quantization step of the value range corresponding to the value of the first bit sequence to increase, resulting in a decrease in the accuracy of the channel state parameter reported to the second node. Therefore, the quantization step of the value range with higher importance (such as the value range with a gap less than the gap threshold from the expected channel state parameter) can be reduced, that is, the quantization accuracy of the value range with higher importance is improved. Furthermore, it is possible to ensure the quantization accuracy while reducing the reporting overhead, ensure the accuracy and reliability of the channel state parameter reported to the second node, so as to ensure the reliability and effectiveness of beam selection or network optimization.

[0130] Exemplarily, as shown in Table 2, assume that the length of the first bit sequence is 3 bits, the quantization step corresponding to the value of the first bit sequence is 1, and the total value range of the channel state parameter represented by the first bit sequence is 0 - 8. Assume that the value ranges 0 - 1 and 1 - 2 have the highest importance, the value range 2 - 4 has the second highest importance, and the value range 4 - 8 has the lowest importance. When the length of the first bit sequence is reduced from 3 bits to 2 bits, as shown in Table 3, at this time, the 2-bit first bit sequence represents the value ranges 0 - 1 and 1 - 2 based on two values, represents the value range 2 - 4 based on one value, and represents the value range 4 - 8 based on one value. In this way, it is ensured that the quantization step of the value range with higher importance is smaller or the quantization accuracy is higher, so as to ensure the reliability and effectiveness of beam selection or network optimization.

[0131] Table 2

[0132]

[0133] Table 3

[0134]

[0135]

[0136] The embodiments of the present disclosure also provide an application in Figure 1A beam reporting method for a second node of the beam reporting system shown, comprising: receiving a beam report sent by a first node. The beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams in the beam report include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

[0137] In some embodiments, the beam report is one of the following: quasi-co-location state, transmission configuration indication state, spatial relationship, reference signal, reference signal resource, spatial filter, precoding, channel state information report.

[0138] In some embodiments, the beam identifier is one of the following: quasi-co-location state index, transmission configuration indication state index, spatial relationship state indication, reference signal index, spatial filter index, precoding index, channel state information reference signal resource indication, synchronization signal block resource indication, channel state information resource set identifier, channel state information resource setting identifier, report setting identifier, bitmap, combined index.

[0139] In some embodiments, the beam information of the first-type beams further includes at least one of the following: the first-type channel state parameters, first indication information; the beam information of the second-type beams further includes at least one of the following: the second-type channel state parameters, second indication information.

[0140] In some embodiments, the first indication information is used to indicate the magnitude relationship between the first-type channel state parameters and a threshold, and the second indication information is used to indicate the magnitude relationship between the second-type channel state parameters and a threshold.

[0141] In some embodiments, the first-type channel state parameters or the second-type channel state parameters may be one of the following: channel state information, reference signal received power, reference signal received quality, signal-to-interference-and-noise ratio, received signal strength indication, channel quality indication, precoding matrix indication, rank indication, layer indication, signal-to-noise ratio, block error rate, channel phase information, channel impulse response information, timing information, confidence, confidence information, probability, channel matrix, precoding matrix, location, fingerprint recognition based on channel observation, identification information of direct and non-direct paths, timing based on channel measurement, angle based on channel measurement, possibility based on channel measurement.

[0142] In some embodiments, the first-type beams are associated with a first-type set, the second-type beams are associated with a second-type set, and there is an association relationship between the first-type set and the second-type set.

[0143] In some embodiments, the association relationship between the first type of set and the second type of set satisfies at least one of the following: the first type of set and the second type of set appear in a resource set of a beam report at the same time; one of the first type of set and the second type of set is a large set and the other is a small set; one set in the first type of set and the second type of set is a subset of the other set.

[0144] In some embodiments, the P first type of beams are the top P beams with the largest first type of channel state parameters among all the first type of beams; the Q second type of beams are the top Q beams with the largest second type of channel state parameters among all the second type of beams.

[0145] In some embodiments, when N is 1, the N beams are the beams with the largest channel state parameters among all the beams.

[0146] In some embodiments, when N is 1, the N beams are the beams with the largest first type of channel state parameters among all the first type of beams.

[0147] In some embodiments, when P is 1, the P first type of beams are the beams with the largest first type of channel state parameters among all the first type of beams; the Q second type of beams are the top N - 1 beams with the largest second type of channel state parameters among all the second type of beams.

[0148] In some embodiments, one of the following preset conditions is satisfied between P and Q: a preset ratio, a preset difference, a preset product value.

[0149] In some embodiments, the preset condition satisfied between P and Q is determined based on predefined or preconfigured.

[0150] In some embodiments, the preset condition satisfied between P and Q is determined based on predefined in the following manner: the second node sends preset condition indication information to the first node, and the preset condition indication information is used to indicate the preset condition satisfied between P and Q.

[0151] In some embodiments, the beam information indicates the first type of channel state parameter or the second type of information state parameter with a first bit sequence, and the value of the first bit sequence corresponds to the value range of the first type of channel state parameter or the second type of channel state parameter.

[0152] In some embodiments, the length of the first bit sequence is determined based on bit number indication information, and the bit number indication information is determined based on preconfiguration or predefined.

[0153] In some embodiments, the number-of-bits indication information is determined based on a predefined rule by the second node sending the number-of-bits indication information to the first node.

[0154] In some embodiments, the length of the first bit sequence is related to a quantization step, which is used to characterize the magnitude of the value range of the first type of channel state parameter or the second type of channel state parameter corresponding to the values of the first bit sequence.

[0155] In some embodiments, the quantization steps corresponding to all the values of the first bit sequence are the same.

[0156] In some embodiments, the quantization steps corresponding to at least two values of the first bit sequence are different from each other.

[0157] In some embodiments, the correspondence between the values of the first bit sequence and the value range of the first type of channel state parameter or the second type of channel state parameter is determined based on correspondence indication information; the correspondence indication information is sent by the second node to the first node.

[0158] In some embodiments, there are multiple such correspondences, and the value ranges of the first type of channel state parameter or the second type of channel state parameter corresponding to the same value of the first bit sequence in different correspondences are different.

[0159] In some embodiments, the beam information indicates the first type of channel state parameter or the second type of channel state parameter with a first bit sequence and a second bit sequence. The values of the first bit sequence correspond to the value range of the first type of channel state parameter or the second type of channel state parameter, and the values of the second bit sequence correspond to the offset value of the value range.

[0160] The disclosed embodiments may perform a functional module division on the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may be implemented in the form of hardware or in the form of software. It should be noted that the division of modules in the disclosed embodiments is illustrative, merely a logical function division, and there may be other division methods in actual implementation. The following takes the example of dividing each functional module corresponding to each function for illustration.

[0161] Figure 5 It is a schematic structural diagram of a beam reporting device provided by the disclosed embodiments. The beam reporting device may execute the beam reporting method provided by the above method embodiments. As Figure 5As shown, the beam reporting device 50 includes: a sending module 501.

[0162] The sending module 501 is configured to send a beam report to a second node; wherein, the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams in the beam report both include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

[0163] In the case of implementing the functions of the above integrated modules in the form of hardware, embodiments of the present disclosure provide another possible structure of the communication device involved in the above embodiments. As Figure 6 shown, the communication device 60 includes: a processor 602, a bus 604. Optionally, the communication device may further include a memory 601; in some embodiments, the communication device may further include a communication interface 603.

[0164] The processor 602 may be configured to implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 602 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 602 may also be a combination for implementing computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0165] The communication interface 603 is configured to connect to other devices through a communication network. The communication network may be an Ethernet, a radio access network, a wireless local area network (WLAN), etc.

[0166] The memory 601 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or can also be an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium, or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0167] As a possible implementation, the memory 601 can exist independently of the processor 602. The memory 601 can be connected to the processor 602 through the bus 604 for storing instructions or program code. When the processor 602 calls and executes the instructions or program code stored in the memory 601, the beam reporting method provided by the embodiments of the present disclosure can be implemented.

[0168] In another possible implementation, the memory 601 can also be integrated with the processor 602.

[0169] The bus 604 can be an extended industry standard architecture (EISA) bus, etc. The bus 604 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 6 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0170] Some embodiments of the present disclosure provide a computer-readable storage medium (for example, a non-transitory computer-readable storage medium). Computer program instructions are stored in the computer-readable storage medium. When the computer program instructions run on a computer, the computer is caused to execute the beam reporting method described in any one of the above embodiments.

[0171] Exemplarily, the above computer-readable storage medium may include, but is not limited to: magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as Compact Discs (CDs), Digital Versatile Discs (DVDs), etc.), smart cards, and flash memory devices (such as Erasable Programmable Read-Only Memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data).

[0172] An embodiment of the present disclosure provides a computer program product containing instructions. When the computer program product runs on a computer, it causes the computer to execute the beam reporting method described in any one of the above embodiments.

[0173] As described above, the above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A beam reporting method, characterized in that: Applied to the first node, including: Send a beam report to the second node; wherein the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams in the beam report both include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

2. The method according to claim 1, characterized in that: The beam information of the first type of beam also includes at least one of the following: the first type of channel state parameter and first indication information; the beam information of the second type of beam also includes at least one of the following: the second type of channel state parameter and second indication information.

3. The method according to claim 2, characterized in that The first indication information is used to indicate the size relationship between the first type of channel state parameter and the threshold, and the second indication information is used to indicate the size relationship between the second type of channel state parameter and the threshold.

4. The method according to claim 2, characterized in that: The first type of channel state parameter or the second type of channel state parameter is one of the following: channel state information, reference signal received power, reference signal received quality, signal interference and noise ratio, received signal strength indication, channel quality indication, precoding matrix indication, rank indication, layer indication, signal-to-noise ratio, block error rate, channel phase information, channel impulse response information, timing information, confidence, confidence information, probability, channel matrix, precoding matrix, position, fingerprint recognition based on channel observation, identification information of direct path and non-direct path, timing based on channel measurement, angle based on channel measurement, possibility based on channel measurement.

5. The method according to claim 1, characterized in that The first type of beam is associated with a first type of set, the second type of beam is associated with a second type of set, and there is an association relationship between the first type of set and the second type of set.

6. The method according to claim 5, characterized in that The association relationship between the first type set and the second type set satisfies at least one of the following: The first type set and the second type set exist in a resource set reported by a beam at the same time; The size of one of the first set and the second set is larger than the size of the other set; One of the first set and the second set is a subset of the other set.

7. The method according to claim 1, characterized in that The P first-type beams are the first P beams with the largest first-type channel state parameters among all the first-type beams; the Q second-type beams are the first Q beams with the largest second-type channel state parameters among all the second-type beams.

8. The method according to claim 1, characterized in that When N is 1, the N beams are the beams with the largest channel state parameters among all beams.

9. The method according to claim 1, characterized in that: When N is 1, the N beams are the beams with the largest first-type channel state parameters among all first-type beams.

10. The method according to claim 1, characterized in that When P is 1, the P first-type beams are the beams with the largest first-type channel state parameters among all first-type beams; the Q second-type beams are the first N-1 beams with the largest second-type channel state parameters among all second-type beams.

11. The method according to claim 1, characterized in that: The P and the Q satisfy one of the following preset conditions: a preset ratio, a preset difference, or a preset multiplication value.

12. The method according to claim 11, characterized in that The preset condition satisfied between the P and the Q is determined based on a pre-definition or pre-configuration.

13. The method according to claim 12, characterized in that The preset condition satisfied between the P and the Q is determined based on a predefined method and is implemented in the following manner: the second node sends preset condition indication information to the first node, and the preset condition indication information is used to indicate the preset condition satisfied between the P and the Q.

14. The method according to claim 1, characterized in that The beam information indicates the first type of channel state parameters or the second type of information state parameters with a first bit sequence, and the value of the first bit sequence corresponds to the value range of the first type of channel state parameters or the second type of channel state parameters.

15. The method according to claim 14, characterized in that The length of the first bit sequence is determined based on bit number indication information, and the bit number indication information is determined based on preconfiguration or predefinition.

16. The method according to claim 15, characterized in that The bit number indication information is determined based on the predefined method in the following manner: the second node sends the bit number indication information to the first node.

17. The method according to claim 14, characterized in that The length of the first bit sequence is related to a quantization step size, and the quantization step size is used to characterize the size of a value range of the first type of channel state parameter or the second type of channel state parameter corresponding to the value of the first bit sequence.

18. The method according to claim 17, characterized in that The quantization step sizes corresponding to all values ​​of the first bit sequence are the same.

19. The method according to claim 17, characterized in that The quantization step sizes corresponding to at least two values ​​of the first bit sequence are different.

20. The method according to claim 14, characterized in that The correspondence between the value of the first bit sequence and the value range of the first type of channel state parameter or the second type of channel state parameter is determined based on correspondence indication information; the correspondence indication information is sent by the second node to the first node.

21. The method according to claim 20, characterized in that There are multiple corresponding relationships, and the value ranges of the first type of channel state parameter or the second type of channel state parameter corresponding to the same value of the first bit sequence in different corresponding relationships are different.

22. The method according to claim 1, characterized in that The beam information indicates the first type of channel state parameter or the second type of channel state parameter with a first bit sequence and a second bit sequence, the value of the first bit sequence corresponds to a value range of the first type of channel state parameter or the second type of channel state parameter, and the value of the second bit sequence corresponds to an offset value of the value range.

23. A beam reporting method, characterized in that: Applied to the second node, the method comprises: Receive a beam report sent by a first node; wherein the beam report includes beam information of each of N beams, the N beams include P first-type beams and Q second-type beams, the first-type beams have first-type channel state parameters, the second-type beams have second-type channel state parameters, the beam information of the first-type beams and the beam information of the second-type beams both include beam identifiers, N, P, and Q are non-negative integers, and the sum of P and Q is equal to N.

24. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 22 is performed, or when the processor executes the instructions, the method according to claim 23 is performed.

25. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, which, when executed on a computer, enable the computer to execute the method according to any one of claims 1 to 22, or to execute the method according to claim 23 when executing the instructions.

26. A computer program product, characterized in that The computer program product comprises computer program instructions, and when the computer program instructions are executed by a processor, the method according to any one of claims 1 to 22 is implemented, or when the instructions are executed, the method according to claim 23 is performed.

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