Air interface antenna calibration threshold adjustment method, electronic device, and computer readable medium

Abstract

The present disclosure provides an air interface antenna calibration threshold adjustment method, an electronic device, and a computer readable medium. The air interface antenna calibration threshold adjustment method comprises: on the basis of a first path determination rule, respectively determining each path of a cell within a threshold adjustment period to obtain a cell path determination result; and on the basis of the cell path determination result, adjusting an air interface antenna calibration threshold of the cell, so that air interface antenna calibration is performed on the basis of an adjusted air interface antenna calibration threshold.

Description

Air interface antenna calibration threshold adjustment method, electronic device, and computer-readable medium

[0001] Cross-references to related publications

[0002] This disclosure claims priority to a Chinese patent application filed with the State Intellectual Property Office on November 17, 2023, with application number CN202311546084.4 and invention name “Air interface antenna calibration threshold adjustment method, electronic device, and computer-readable medium.” The entire contents of the application are incorporated by reference into this disclosure. Technical Field

[0003] The embodiments of the present disclosure relate to, but are not limited to, the field of communication technologies, and in particular to a method for adjusting an air interface antenna calibration threshold, an electronic device, and a computer-readable medium. Background Art

[0004] As shown in Figure 1, the overall architecture of an active indoor distribution system consists of three levels: the baseband unit (BBU), the pico-bridge (PB), and the pico remote radio unit (pRRU). Currently, service channels in active indoor distribution systems, such as the physical downlink shared channel (PDSCH), primarily use two transmission modes: beamforming (BF) and precoding matrix indicator (PMI). Of these two transmission modes, the BF transmission mode offers greater gain compared to the PMI transmission mode. However, this gain requires successful Advanced (Air) Antenna Calibration (AAC) for the pRRUs within the cell, i.e., successful delay and phase alignment. Currently, the AAC calibration success rate and AAC calibration accuracy fluctuate greatly, resulting in a low probability of cell users adopting the BF transmission mode or a lower gain when the BF transmission mode is adopted compared to the PMI transmission mode.

[0005] Summary of the Invention

[0006] Embodiments of the present disclosure provide an air interface antenna calibration threshold adjustment method, an electronic device, and a computer-readable medium.

[0007] In a first aspect, an embodiment of the present disclosure provides an air interface antenna calibration threshold adjustment method, comprising: judging each path of a cell within a threshold adjustment period based on a first path judgment rule to obtain a judgment result of the cell path; adjusting the air interface antenna calibration threshold of the cell according to the judgment result of the cell path, so that air interface antenna calibration is performed according to the adjusted air interface antenna calibration threshold.

[0008] In a second aspect, an embodiment of the present disclosure provides an electronic device, comprising: at least one processor; a memory, wherein at least one program is stored in the memory, and when the at least one program is executed by the at least one processor, any of the above-mentioned air interface antenna calibration threshold adjustment methods is implemented.

[0009] In a third aspect, an embodiment of the present disclosure provides a computer-readable medium having a computer program stored thereon. When the computer program is executed by a processor, any one of the above-mentioned air interface antenna calibration threshold adjustment methods is implemented.

[0010] According to the air interface antenna calibration threshold adjustment method of the embodiment of the present disclosure, the AAC threshold is adjusted based on the judgment results of all paths of the cell within the threshold adjustment period. Since the AAC threshold determines the AAC success rate, the AAC success rate is improved, thereby increasing the probability of cell users adopting the BF transmission mode. Or, since the AAC parameters change with changes in the environment, adjusting the AAC threshold based on the judgment results of the AAC parameters can eliminate environmental factors and improve AAC accuracy, thereby increasing the gain obtained when adopting the BF transmission mode relative to the PMI transmission mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of the architecture of an active indoor distribution system in the related art;

[0012] FIG2 is a flow chart of a method for adjusting an air interface antenna calibration threshold according to an embodiment of the present disclosure;

[0013] FIG3 is a schematic diagram of a bitmap according to an embodiment of the present disclosure;

[0014] FIG4 is a schematic diagram of bitmap operation according to an embodiment of the present disclosure;

[0015] FIG5 is a block diagram of a device for adjusting an air interface antenna calibration threshold according to another embodiment of the present disclosure;

[0016] FIG6 is a block diagram of an example of a device for adjusting an air interface antenna calibration threshold according to an embodiment of the present disclosure;

[0017] FIG7 is a block diagram of an electronic device according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] To enable those skilled in the art to better understand the technical solutions of the present disclosure, the air interface antenna calibration threshold adjustment method, electronic device, and computer-readable medium provided by the present disclosure are described in detail below with reference to the accompanying drawings.

[0019] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but the example embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of this disclosure to those skilled in the art.

[0020] In the absence of conflict, the various embodiments of the present disclosure and the various features therein may be combined with each other.

[0021] As used herein, the term "and / or" includes any and all combinations of at least one of the associated listed items.

[0022] The terms used herein are used only to describe specific embodiments and are not intended to limit the present disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements, and / or components is specified, but the presence or addition of at least one other feature, whole, step, operation, element, component, and / or group thereof is not excluded.

[0023] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined as such herein.

[0024] Currently, active indoor distributed systems use two main transmission modes for service channels, such as the PDSCH: BF and PMI. As shown in Table 1, when user equipment (UE) in a cell uses these two transmission modes, the uplink and downlink rates differ significantly.

[0025] Table 1

[0026] As shown in Table 1, of the two transmission modes, the BF transmission mode can achieve greater gains than the PMI transmission mode, achieving a gain of more than 39% in the downlink and more than 13% in the uplink.

[0027] However, the BF transmission mode's gain over the PMI transmission mode presupposes successful AAC (AAC) of the pRRUs within the cell, meaning that both delay and phase alignment are successful. Currently, pRRUs must be calibrated using AAC signals to achieve delay and phase alignment. The transmission quality of the AAC signal directly determines the calibration results for the entire cell. Different calibration accuracy results in different gains from the BF transmission mode. Due to the diverse pRRU deployment topologies and the time-varying nature of the air interface environment, the transmission quality of the AAC signal varies across different environments, leading to significant variations in calibration accuracy. Furthermore, the temperature-dependent phase variation of the pRRU's channel can also significantly affect calibration accuracy. This temperature-dependent phase variation refers to the phase variation of the AAC signal caused by temperature changes during long-term pRRU operation. These two factors can significantly fluctuate the AAC calibration success rate and accuracy over the long term, resulting in a lower probability of cell users adopting the BF transmission mode or a lower gain compared to the PMI transmission mode when using the BF transmission mode.

[0028] In the disclosed embodiment, as shown in Figure 1, the overall architecture of the active indoor distribution system is divided into three levels: BBU, PB, and pRRU. In current active indoor distribution systems, a BBU can manage multiple cells, and a cell can be composed of multiple pRRUs. Taking a fully configured ordinary cell or super cell as an example: a cell is connected to six cell parts (CPs), each CP is connected to four PBs, and each PB is connected to eight pRRUs. In this way, a cell has a total of 6×4×8=192 pRRUs.

[0029] FIG2 is a flowchart of an AAC threshold adjustment method according to an embodiment of the present disclosure.

[0030] In a first aspect, referring to FIG. 2 , an AAC threshold adjustment method according to an embodiment of the present disclosure includes:

[0031] Step 200: Determine each path of the cell within the threshold adjustment period based on the first path determination rule to obtain a determination result of the cell path.

[0032] In some exemplary embodiments, determining each path of the cell within the threshold adjustment period based on the first path determination rule to obtain a cell path determination result includes: performing path determination for each AAC cycle within the threshold adjustment period based on the second path determination rule for each path of the cell to obtain a path determination result for each AAC cycle; and determining the cell path determination result based on the path determination results for each AAC cycle based on the first path determination rule. In other words, for each path of the cell, performing path determination for each AAC cycle within the threshold adjustment period based on the second path determination rule to obtain a path determination result for each AAC cycle within the threshold adjustment period; and determining the cell path determination result within the threshold adjustment period based on the path determination results for all AAC cycles within the threshold adjustment period based on the first path determination rule.

[0033] In some exemplary embodiments, the first path decision rule refers to a path decision rule used to determine the decision result of the cell path within the threshold adjustment period based on the path decision results of multiple AAC cycles within a threshold adjustment period after obtaining the path decision results of multiple AAC cycles within a threshold adjustment period.

[0034] In some exemplary embodiments, the number of AAC cycles included in the threshold adjustment period can be set according to actual needs, or determined according to an air interface antenna calibration result.

[0035] In some exemplary embodiments, the decision results for all paths within the AAC cycle within the threshold adjustment period can be represented using bitmap encoding. As shown in Figure 3, each row in Figure 3 represents an AAC cycle within the threshold adjustment period, and each column represents a path within the cell. 1 and 0 represent the decision results for the path within the AAC cycle, with 1 indicating a successful decision and 0 indicating a failed decision.

[0036] In some exemplary embodiments, for each path in the cell, a path decision is performed for each AAC cycle within the threshold adjustment period based on the second path decision rule, and obtaining the path decision result for each AAC cycle includes: for each path in the cell, determining the path decision result for any two pRRUs in the path corresponding to each AAC cycle based on the third path decision rule; and determining the path decision result for each AAC cycle based on the decision results for all any two pRRUs in the path corresponding to each AAC cycle based on the second path decision rule. In other words, for each path in the cell and each AAC cycle within the threshold adjustment period, a decision result for every any two pRRUs in the path within the AAC cycle is determined based on the third path decision rule; and a decision result for the path within the AAC cycle is determined based on the decision results for all any two pRRUs in the path within the AAC cycle based on the second path decision rule.

[0037] In some exemplary embodiments, the second path decision rule refers to the path decision rule used to determine the path decision result of the AAC cycle based on the decision results of all any two pRRUs in the path corresponding to the AAC cycle after obtaining the decision results of all any two pRRUs in the path corresponding to the AAC cycle.

[0038] In some exemplary embodiments, the judgment result of any two pRRUs can be the judgment result of the AAC parameters of any two pRRUs, that is, the difference between the AAC parameters of any two pRRUs is aligned, and the difference between the AAC parameters after the alignment is compared with the AAC threshold. The comparison result obtained is the judgment result of any two pRRUs.

[0039] In some exemplary embodiments, for each path in the cell, a path decision is performed for each AAC cycle within the threshold adjustment period based on the second path decision rule, and the path decision result for each AAC cycle is obtained, including: for each path in the cell, determining the decision result for each of the two adjacent pRRUs in the path corresponding to each AAC cycle based on the third path decision rule; and determining the path decision result for each AAC cycle based on the decision results for all two adjacent pRRUs in the path corresponding to each AAC cycle based on the second path decision rule. In other words, for each path in the cell and each AAC cycle within the threshold adjustment period, the decision result for each of the two adjacent pRRUs in the path within the AAC cycle is determined based on the third path decision rule; and the decision result for the path within the AAC cycle is determined based on the decision results for all two adjacent pRRUs in the path within the AAC cycle based on the second path decision rule.

[0040] In some exemplary embodiments, the second path decision rule refers to the path decision rule adopted for determining the path decision result of the AAC cycle based on the decision results of all two adjacent pRRUs in the path corresponding to the AAC cycle after obtaining the decision results of all two adjacent pRRUs in the path corresponding to the AAC cycle.

[0041] In some exemplary embodiments, the judgment result of two adjacent pRRUs may be the judgment result of the AAC parameters of the two adjacent pRRUs, that is, the difference between the AAC parameters of the two adjacent pRRUs is aligned, and the difference between the AAC parameters after the alignment is compared with the AAC threshold, and the comparison result obtained is the judgment result of the two adjacent pRRUs.

[0042] In some exemplary embodiments, each path in a cell includes at least two pRRUs. For example, assuming a cell has five pRRUs numbered 0, 1, 2, 3, and 4, four paths are required to implement AAC calibration for the five pRRUs within the cell. These four paths may include: Path 1: 0->2->3->4, Path 2: 0->2->3, Path 3: 0->2, and Path 4: 0->1. Path 1 indicates that pRRU2 aligns with PRRU0, pRRU3 aligns with pRRU2, and pRRU4 aligns with pRRU3; Path 2 indicates that pRRU2 aligns with PRRU0, and pRRU3 aligns with pRRU2; Path 3 indicates that pRRU2 aligns with PRRU0; and Path 4 indicates that pRRU1 aligns with PRRU0.

[0043] In some exemplary embodiments, all pRRUs in a cell may be uniformly numbered to ensure the uniqueness of the pRRU numbers deployed in the cell. Therefore, when obtaining the judgment result of any two pRRUs within an AAC cycle, the AAC parameters and corresponding pRRU numbers of each of the two pRRUs within the AAC cycle may be first obtained, and then the difference in the AAC parameters of the two pRRUs within the AAC cycle may be aligned. The difference in the aligned AAC parameters may be compared with the AAC threshold, and the comparison result obtained may be the judgment result of any two pRRUs within the AAC cycle.

[0044] For example, in the above example, the decision result of path 1 needs to be determined based on the decision results of pRRU0 and pRRU2, the decision results of pRRU0 and pRRU3, the decision results of pRRU0 and pRRU4, the decision results of pRRU2 and pRRU3, the decision results of pRRU2 and pRRU4, and the decision results of pRRU3 and pRRU4. The same applies to other paths.

[0045] When obtaining the judgment result of two adjacent pRRUs within the AAC cycle, the AAC parameters and corresponding pRRU numbers of each of the two adjacent pRRUs within the AAC cycle can be obtained first, and then the difference between the AAC parameters of the two adjacent pRRUs within the AAC cycle is aligned, and the difference between the aligned AAC parameters is compared with the AAC threshold. The comparison result obtained is the judgment result of the two adjacent pRRUs within the AAC cycle.

[0046] For example, in the above example, the decision result of path 1 needs to be determined based on the decision results of pRRU0 and pRRU2, the decision results of pRRU2 and pRRU3, and the decision results of pRRU3 and pRRU4. The same applies to other paths.

[0047] In some exemplary embodiments, the AAC parameters may refer to parameters of a received AAC signal.

[0048] In some exemplary embodiments, the AAC parameters include at least one of the following: power, phase, timing advance (TA), reference signal receiving power (RSRP), signal to interference plus noise ratio (SINR), etc.

[0049] In some exemplary embodiments, different AAC parameters correspond to different AAC thresholds. For example, the AAC threshold corresponding to power is a power difference threshold, the AAC threshold corresponding to phase is a phase difference threshold, the AAC threshold corresponding to TA is a TA difference threshold, and so on.

[0050] In some exemplary embodiments, when the difference between the AAC parameters of any two pRRUs is less than or equal to the AAC threshold, the decision result of any two pRRUs is determined to be a successful decision; when the difference between the AAC parameters of any two pRRUs is greater than the AAC threshold, the decision result of any two pRRUs is determined to be a failed decision.

[0051] In some exemplary embodiments, when the difference between the AAC parameters of two adjacent pRRUs is less than or equal to the AAC threshold, the decision result of the two adjacent pRRUs is determined to be a successful decision; when the difference between the AAC parameters of two adjacent pRRUs is greater than the AAC threshold, the decision result of the two adjacent pRRUs is determined to be a failed decision.

[0052] In some exemplary embodiments, when performing path decision within the first threshold adjustment period, the AAC threshold may be an initial setting value; when performing path decision starting from the second threshold adjustment period, the AAC threshold may be the AAC threshold adjusted last time, that is, the AAC threshold adjusted in the previous threshold adjustment period.

[0053] In some exemplary embodiments, the unique number of the pRRU may be represented by a CP number, a PB number, and a pRRU subnumber.

[0054] In some exemplary embodiments, the CP number refers to the number of the CP to which the pRRU belongs.

[0055] In some exemplary embodiments, the CP number may be determined according to the number of CPs included in a cell. Different CPs in the same cell may have different CP numbers, and different CPs in different cells may have the same or different CP numbers.

[0056] In some exemplary embodiments, the PB number refers to the number of the PB to which the pRRU is connected.

[0057] In some exemplary embodiments, the PB number may be determined according to the number of PBs included in the CP. Different PBs in the same CP may have different PB numbers, and different PBs in different CPs may have the same or different PB numbers.

[0058] In some exemplary embodiments, the pRRU subnumber may be determined according to the number of pRRUs connected to the PB, and different pRRUs connected to the same PB may have different pRRU numbers, and different pRRUs connected to different PBs may have the same or different pRRU numbers.

[0059] In some exemplary embodiments, a path may be represented by a pRRU number in the path.

[0060] In some exemplary embodiments, the path decision result of each AAC cycle includes at least one of the following:

[0061] If the decision results of any two pRRUs in the corresponding path within the AAC period show that the decision is successful, the decision result of the path in the AAC period is determined to be a successful decision;

[0062] In the case where the decision results of at least one group of any two pRRUs in the corresponding path within the AAC cycle show a decision failure, the path decision result of the AAC cycle is determined to be a decision failure.

[0063] In some exemplary embodiments, determining the decision result of the path within the AAC period according to the decision results of all any two pRRUs in the path within the AAC period based on the second path decision rule includes at least one of the following:

[0064] In the case that the decision results of all any two pRRUs in the path within the AAC period are both successful decisions, the decision result of the path within the AAC period is determined to be a successful decision.

[0065] In a case where the decision result of at least one group of any two pRRUs in the path within the AAC cycle is a decision failure, it is determined that the decision result of the path within the AAC cycle is a decision failure.

[0066] In some exemplary embodiments, the path decision result of each AAC cycle includes at least one of the following:

[0067] If the decision results of all two adjacent pRRUs in the corresponding path within the AAC period show successful decision, the path decision result of the AAC period is determined to be successful.

[0068] In the case where the decision result of at least one group of two adjacent pRRUs in the path corresponding to the AAC cycle shows a decision failure, the path decision result of the AAC cycle is determined to be a decision failure.

[0069] In some exemplary embodiments, determining the decision result of the path within the AAC period according to the decision results of all two adjacent pRRUs in the path within the AAC period based on the second path decision rule includes at least one of the following:

[0070] In the case that the decision results of all two adjacent pRRUs in the path within the AAC period are both successful decisions, the decision result of the path within the AAC period is determined to be a successful decision.

[0071] In a case where the decision result of at least one group of two adjacent pRRUs in the path within the AAC cycle is a decision failure, it is determined that the decision result of the path within the AAC cycle is a decision failure.

[0072] In some exemplary embodiments, the cell path decision result includes at least one of the following:

[0073] If the path decision result of at least one AAC cycle within the threshold adjustment period is a successful decision, determining the decision result of the cell path within the threshold adjustment period is a successful decision;

[0074] In the case that the path decision results of all AAC cycles within the threshold adjustment period are all decision failures, it is determined that the decision result of the cell path within the threshold adjustment period is a decision failure.

[0075] In some exemplary embodiments, determining the decision result of the cell path within the threshold adjustment period based on the first path decision rule according to the path decision results of all AAC periods within the threshold adjustment period includes at least one of the following:

[0076] If the path decision result of at least one AAC cycle within the threshold adjustment period is a successful decision, it is determined that the decision result of the cell path within the threshold adjustment period is a successful decision.

[0077] The path decision results of all AAC cycles within the threshold adjustment period are all decision failures, and the decision result of the cell path within the threshold adjustment period is determined to be a decision failure.

[0078] As shown in Figure 4, when bitmap coding is used to represent the decision result of the cell path, in all AAC cycles within the threshold adjustment period, if the decision results of a certain path are all 0, then the decision result of the cell path within the threshold adjustment period is determined to be 0; if at least one of the decision results of a certain path is 1, then the decision result of the cell path within the threshold adjustment period is determined to be 1.

[0079] Step 201: Adjust the AAC threshold of the cell according to the decision result of the cell path, so that air interface antenna calibration is performed according to the adjusted AAC threshold.

[0080] In some exemplary embodiments, the AAC threshold of the cell is adjusted according to the decision results of all paths of the cell within the threshold adjustment period, so that air interface antenna calibration is performed according to the adjusted AAC threshold.

[0081] In some exemplary embodiments, when the AAC parameters include two or more, the AAC threshold corresponding to the AAC parameter of the cell is adjusted according to the decision results corresponding to the AAC parameters of all paths of the cell within the threshold adjustment period.

[0082] In some exemplary embodiments, performing air interface antenna calibration according to the adjusted AAC threshold includes: determining a path of the cell according to the adjusted AAC threshold to obtain a path determination result.

[0083] In some exemplary embodiments, performing air interface antenna calibration according to the adjusted AAC threshold includes: adjusting an AAC compensation coefficient according to the adjusted AAC threshold.

[0084] In some exemplary embodiments, performing air interface antenna calibration according to the adjusted AAC threshold includes: determining a path of the cell according to the adjusted AAC threshold to obtain a path determination result; and determining an AAC compensation coefficient according to the adjusted AAC threshold.

[0085] In some exemplary embodiments, adjusting the AAC threshold of the cell according to the decision result of the cell path includes at least one of the following:

[0086] If the decision results of all paths of the cell within the threshold adjustment period are all successful, the AAC threshold is adjusted down.

[0087] When the decision result of at least one path of the cell is a failure within the threshold adjustment period, the AAC threshold is increased.

[0088] In some exemplary embodiments, adjusting the AAC threshold of the cell according to the decision results of all paths of the cell within the threshold adjustment period includes at least one of the following:

[0089] If the decision results of all paths of the cell within the threshold adjustment period are all successful, the AAC threshold is adjusted down.

[0090] When the decision result of at least one path of the cell is a failure within the threshold adjustment period, the AAC threshold is increased.

[0091] In some exemplary embodiments, reducing the AAC threshold includes: determining a convergence step corresponding to the AAC threshold according to a convergence adjustment step of the AAC threshold and an adjustment amplification factor; and reducing the AAC threshold according to the convergence step corresponding to the AAC threshold.

[0092] In some exemplary embodiments, assuming that the convergence adjustment step of the AAC threshold is ΔS11, the adjustment amplification factor is C, and the convergence step corresponding to the AAC threshold is ΔS22, the convergence step corresponding to the AAC threshold is calculated according to formula (1).

[0093] In some exemplary embodiments, reducing the AAC threshold according to the convergence step corresponding to the AAC threshold includes: subtracting the convergence step corresponding to the AAC threshold from the current AAC threshold, and using the AAC threshold after subtracting the convergence step corresponding to the AAC threshold as the adjusted AAC threshold.

[0094] In some exemplary embodiments, reducing the AAC threshold according to the convergence step corresponding to the AAC threshold includes: subtracting the convergence step corresponding to the AAC threshold from the current AAC threshold, and when the AAC threshold after subtracting the convergence step corresponding to the AAC threshold is less than or equal to the lower limit value of the AAC threshold adjustment range, using the lower limit value of the AAC threshold adjustment range as the adjusted AAC threshold; when the AAC threshold after subtracting the convergence step corresponding to the AAC threshold is greater than the lower limit value of the AAC threshold adjustment range, using the AAC threshold after subtracting the convergence step corresponding to the AAC threshold as the adjusted AAC threshold.

[0095] In some exemplary embodiments, increasing the AAC threshold includes: determining a relaxation step corresponding to the AAC threshold according to the relaxation adjustment step of the AAC threshold and the adjustment amplification factor; and increasing the AAC threshold according to the relaxation step corresponding to the AAC threshold.

[0096] In some exemplary embodiments, assuming that the relaxation adjustment step size corresponding to the AAC threshold is ΔS33, the adjustment amplification factor is C, and the relaxation step size corresponding to the AAC threshold is ΔS44, then the relaxation step size corresponding to the AAC threshold is calculated according to formula (2).

[0097] In some exemplary embodiments, increasing the AAC threshold according to the relaxation step corresponding to the AAC threshold includes: adding the relaxation step corresponding to the AAC threshold to the current AAC threshold, and using the AAC threshold after adding the relaxation step corresponding to the AAC threshold as the adjusted AAC threshold.

[0098] In some exemplary embodiments, increasing the AAC threshold according to the relaxation step corresponding to the AAC threshold includes: adding the relaxation step corresponding to the AAC threshold to the current AAC threshold, and when the AAC threshold after adding the relaxation step corresponding to the AAC threshold is greater than or equal to the upper limit value of the AAC threshold adjustment range, using the upper limit value of the AAC threshold adjustment range as the adjusted AAC threshold; when the AAC threshold after adding the relaxation step corresponding to the AAC threshold is less than the upper limit value of the AAC threshold adjustment range, using the AAC threshold after adding the relaxation step corresponding to the AAC threshold as the adjusted AAC threshold.

[0099] The air interface antenna calibration threshold adjustment method provided in the embodiment of the present disclosure adjusts the AAC threshold based on the judgment results of all paths of the cell within the threshold adjustment period. Since the AAC threshold determines the AAC success rate, the AAC success rate is improved, thereby increasing the probability of cell users adopting the BF transmission mode. Alternatively, since the AAC parameters change with changes in the environment, adjusting the AAC threshold based on the judgment results of the AAC parameters can eliminate environmental factors and improve AAC accuracy, thereby increasing the gain obtained when adopting the BF transmission mode relative to the PMI transmission mode.

[0100] In order to more clearly present the AAC threshold adjustment method of the embodiment of the present disclosure, an example is given below for illustration. The example given is not intended to limit the protection scope of the embodiment of the present disclosure.

[0101] Example

[0102] The AAC threshold adjustment method in this example includes:

[0103] 1. Set relevant parameters.

[0104] The parameters that need to be set for the AAC threshold adjustment method in this example include: threshold adjustment period, AAC period, power difference threshold initial value, convergence adjustment step corresponding to the power difference threshold, relaxation adjustment step corresponding to the power difference threshold, power difference threshold adjustment range, phase difference threshold initial value, convergence adjustment step corresponding to the phase difference threshold, relaxation adjustment step corresponding to the phase difference threshold, phase difference threshold adjustment range, and adjustment amplification factor.

[0105] In this example, the threshold adjustment period can be set to A and the AAC period can be set to B.

[0106] In this example, the initial value of the power difference threshold can be set to AACThrPwr, the convergence adjustment step corresponding to the power difference threshold can be set to △PwrDiffThrSStep, the relaxation adjustment step corresponding to the power difference threshold can be set to △PwrDiffThrFStep, and the power difference threshold adjustment range can be set to PwrDiffThrRange.

[0107] In this example, the initial value of the phase difference threshold can be set to AACThrPhase, the convergence adjustment step corresponding to the phase difference threshold can be set to △PhaseDiffThrSStep, the relaxation adjustment step corresponding to the phase difference threshold can be set to △PhaseDiffThrFStep, and the phase difference threshold adjustment range can be set to PhaseDiffThrRange.

[0108] In this example, the adjustment magnification factor can be set to C.

[0109] 2. Set relevant variables.

[0110] The variables that need to be set in the AAC threshold adjustment method of this example include: power difference threshold, phase difference threshold, convergence step corresponding to the power difference threshold, relaxation step corresponding to the power difference threshold, convergence step corresponding to the phase difference threshold, and relaxation step corresponding to the phase difference threshold.

[0111] In this example, the power difference threshold may be set as a variable PwrDiffThr, and PwrDiffThr may be initialized to be equal to AACThrPwr.

[0112] In this example, the phase difference threshold may be set as a variable PhaseDiffThr, and PhaseDiffThr=AACThrPhase may be initialized.

[0113] In this example, the convergence step corresponding to the power difference threshold can be set to the variable PwrDiffThrSStep.

[0114] In this example, the relaxation step size corresponding to the power difference threshold can be set to the variable PwrDiffThrFStep.

[0115] In this example, the convergence step corresponding to the phase difference threshold can be set to the variable PhaseDiffThrSStep.

[0116] In this example, the relaxation step corresponding to the phase difference threshold can be set to the variable PhaseDiffThrFStep.

[0117] 3. The pRRUs in a cell are uniformly numbered according to the network topology of the pRRUs in the cell. The unique number of the pRRUs in a cell is represented by the CP number, PB number and pRRU sub-number.

[0118] 4. Set the threshold adjustment timer and set the initial value of the threshold adjustment timer to A.

[0119] 5. Obtain the power and phase values ​​of all pRRUs in each path of the cell, align the power values ​​of the pRRUs, and align the phase values ​​of the pRRUs. Here, it is necessary to obtain the power and phase values ​​corresponding to each AAC period within the threshold adjustment period.

[0120] 6. Within the same AAC cycle within the same threshold adjustment cycle, calculate the difference in power values ​​and phase values ​​after alignment between any two pRRUs in the same path of the cell; compare the difference in power values ​​after alignment between any two pRRUs with the power difference threshold to obtain the power difference judgment result between any two pRRUs; compare the difference in phase values ​​after alignment between any two pRRUs with the phase difference threshold to obtain the phase difference judgment result between any two pRRUs.

[0121] 7. Determine the result of the power difference of the path within the AAC cycle based on the result of the power difference between all arbitrary two pRRUs in the same path of the cell within the same AAC cycle. Specifically, if the result of the power difference between all arbitrary two pRRUs in the same path of the cell within the AAC cycle is a success, the result of the power difference of the path within the AAC cycle is determined to be a success; if the result of the power difference between at least one group of arbitrary two pRRUs in the same path of the cell within the AAC cycle is a failure, the result of the power difference of the path within the AAC cycle is determined to be a failure.

[0122] 8. Determine the decision result of the path within the AAC cycle based on the decision result of the phase difference between all arbitrary two pRRUs in the same path of the cell within the same AAC cycle. Specifically, if the decision result of the phase difference between all arbitrary two pRRUs in the same path of the cell within the AAC cycle is a success, the decision result of the phase difference between the path within the AAC cycle is a success; if the decision result of the phase difference between at least one group of arbitrary two pRRUs in the same path of the cell within the AAC cycle is a failure, the decision result of the phase difference between the path within the AAC cycle is a failure.

[0123] 9. Bitmap encode the judgment results of the power difference in different AAC cycles within the same threshold adjustment period for all paths of the cell to obtain the bitmap corresponding to the power difference; bitmap encode the judgment results of the phase difference in different AAC cycles within the same threshold adjustment period for all paths of the cell to obtain the bitmap corresponding to the phase difference.

[0124] In the bitmap, 1 indicates a successful decision, and 0 indicates a failed decision.

[0125] 10. Perform calculations based on the bitmap corresponding to the power difference to obtain the power difference judgment result for each path in the cell within the threshold adjustment period. Specifically, in the bitmap corresponding to the power difference, if the judgment results of the power difference for a path in the cell in different AAC periods within the same threshold adjustment period are all 0, then the judgment result of the power difference for this path within the threshold adjustment period is 0; if at least one of the judgment results of the power difference for a path in the cell in different AAC periods within the same threshold adjustment period is 1, then the judgment result of the power difference for this path within the threshold adjustment period is 1.

[0126] 11. Perform calculations based on the bitmap corresponding to the phase difference to obtain the phase difference judgment result for each path in the cell within the threshold adjustment period. Specifically, in the bitmap corresponding to the phase difference, if the phase difference judgment results for a path in the cell in different AAC periods within the same threshold adjustment period are all 0, then the phase difference judgment result for this path within the threshold adjustment period is 0; if at least one of the phase difference judgment results for a path in the cell in different AAC periods within the same threshold adjustment period is 1, then the phase difference judgment result for this path within the threshold adjustment period is 1.

[0127] 12. Determine whether the threshold adjustment timer has timed out. If not, return to step 5; if it has timed out, adjust the power difference threshold according to the calculation result of the bitmap corresponding to the power difference. Specifically, when the calculation result of the bitmap corresponding to the power difference is 1, the power difference threshold is reduced according to the convergence step PwrDiffThrSStep corresponding to the power difference threshold, that is, the current power difference threshold value is subtracted from the convergence step PwrDiffThrSStep corresponding to the power difference threshold. When the power difference threshold value after subtracting the convergence step PwrDiffThrSStep corresponding to the power difference threshold is less than or equal to the lower limit value of the power difference threshold adjustment range PwrDiffThrRange, the lower limit value of the power difference threshold adjustment range PwrDiffThrRange is used as the adjusted power difference threshold value; after subtracting the convergence step PwrDiffThrSStep corresponding to the power difference threshold, the lower limit value of the power difference threshold adjustment range PwrDiffThrRange is used as the adjusted power difference threshold value. When the power difference threshold value after rDiffThrSStep is greater than the lower limit value of the power difference threshold adjustment range PwrDiffThrRange, the power difference threshold value after subtracting the convergence step size PwrDiffThrSStep corresponding to the power difference threshold is used as the adjusted power difference threshold value; when the calculation result of the bitmap corresponding to the power difference is 0, the power difference threshold is increased according to the relaxation step size PwrDiffThrFStep corresponding to the power difference threshold, that is, the current power difference threshold value is added to the relaxation step size PwrDiffThrFStep corresponding to the power difference threshold, and then the relaxation step size PwrDiffThrFStep corresponding to the power difference threshold is added. When the power difference threshold value after adjustment is greater than or equal to the upper limit value of the power difference threshold adjustment range PwrDiffThrRange, the upper limit value of the power difference threshold adjustment range PwrDiffThrRange is used as the adjusted power difference threshold value; when the power difference threshold value after adding the relaxation step size PwrDiffThrFStep corresponding to the power difference threshold is less than the lower limit value of the power difference threshold adjustment range PwrDiffThrRange, the power difference threshold value after adding the relaxation step size PwrDiffThrFStep corresponding to the power difference threshold is used as the adjusted power difference threshold value.

[0128] 13. Determine whether the threshold adjustment timer has timed out. If not, return to step 5. If it has timed out, adjust the phase difference threshold according to the calculation result of the bitmap corresponding to the phase difference. Specifically, when the calculation result of the bitmap corresponding to the phase difference is 1, the phase difference threshold is reduced according to the convergence step length PhaseDiffThrSStep corresponding to the phase difference threshold, that is, the current phase difference threshold value is subtracted from the convergence step length PhaseDiffThrSStep corresponding to the phase difference threshold. After subtracting the convergence step length PhaseDiffThrSStep corresponding to the phase difference threshold, the phase difference threshold value is less than or equal to the phase difference threshold adjustment range PhaseDiffThrSStep. If the phase difference threshold value after deducting the convergence step length PhaseDiffThrSStep corresponding to the phase difference threshold is greater than the lower limit value of the phase difference threshold adjustment range PhaseDiffThrRange, the phase difference threshold value after deducting the convergence step length PhaseDiffThrSStep corresponding to the phase difference threshold is used as the adjusted phase difference threshold value. ; When the calculation result of the bitmap corresponding to the phase difference is that the judgment result of the phase difference of at least one path of the cell within the threshold adjustment period is 0, the phase difference threshold is increased according to the relaxation step size PhaseDiffThrFStep corresponding to the phase difference threshold, that is, the current phase difference threshold value is added with the relaxation step size PhaseDiffThrFStep corresponding to the phase difference threshold; when the phase difference threshold value after adding the relaxation step size PhaseDiffThrFStep corresponding to the phase difference threshold is greater than or equal to the upper limit value of the phase difference threshold adjustment range PhaseDiffThrRange, the upper limit value of the phase difference threshold adjustment range PwrDiffThrRange is used as the adjusted phase difference threshold value; when the phase difference threshold value after adding the relaxation step size PhaseDiffThrFStep corresponding to the phase difference threshold is less than the lower limit value of the phase difference threshold adjustment range PhaseDiffThrRange, the phase difference threshold value after adding the relaxation step size PhaseDiffThrFStep corresponding to the phase difference threshold is used as the adjusted phase difference threshold value.

[0129] FIG5 is a block diagram of a device for adjusting an air interface antenna calibration threshold according to another embodiment of the present disclosure.

[0130] In the second aspect, referring to Figure 5, another embodiment of the present disclosure provides an air interface antenna calibration threshold adjustment device, including: a path judgment module 501, configured to judge each path of the cell within the threshold adjustment period based on a first path judgment rule, and obtain a judgment result of the cell path; a threshold adjustment module 502, configured to adjust the air interface antenna calibration threshold of the cell according to the judgment result of the cell path, so that the air interface antenna calibration is performed according to the adjusted air interface antenna calibration threshold.

[0131] In some exemplary embodiments, the path determination module 501 is specifically configured to implement the determination of each path of the cell within the threshold adjustment period based on the first path determination rule in the following manner to obtain the determination result of the cell path: for each path of the cell, path determination is performed on each air interface antenna calibration period within the threshold adjustment period based on the second path determination rule to obtain the path determination result of each air interface antenna calibration period; based on the first path determination rule and the path determination result of each air interface antenna calibration period, the determination result of the cell path is determined.

[0132] In some exemplary embodiments, the path determination module 501 is specifically configured to implement the path determination for each path of the cell in the following manner, performing path determination on each air interface antenna calibration period within the threshold adjustment period based on the second path determination rule, and obtaining the path determination results of each air interface antenna calibration period: for each path of the cell, determining the path determination results of any two micro remote radio frequency units pRRUs in the corresponding paths within each air interface antenna calibration period based on the third path determination rule; determining the path determination results of each air interface antenna calibration period based on the second path determination rule according to the determination results of all any two pRRUs in the corresponding paths within each air interface antenna calibration period.

[0133] In some exemplary embodiments, the path decision results of each of the air interface antenna calibration periods include at least one of the following:

[0134] If the decision results of any two pRRUs in the corresponding path within the air interface antenna calibration period show a successful decision, determining that the path decision result of the air interface antenna calibration period is a successful decision;

[0135] When the decision result of at least one group of any two pRRUs in the path corresponding to the air interface antenna calibration period shows a decision failure, it is determined that the path decision result of the air interface antenna calibration period is a decision failure.

[0136] In some exemplary embodiments, the determination result of the cell path includes at least one of the following:

[0137] If a path decision result of at least one of the air interface antenna calibration periods within the threshold adjustment period is a success, determining that a decision result of the cell path within the threshold adjustment period is a success;

[0138] In a case where the path decision results of all the air interface antenna calibration periods within the threshold adjustment period are all decision failures, it is determined that the decision result of the cell path within the threshold adjustment period is a decision failure.

[0139] In some exemplary embodiments, the threshold adjustment module 502 is configured to perform at least one of the following:

[0140] When the judgment results of all paths of the cell within the threshold adjustment period are successful, reducing the air interface antenna calibration threshold;

[0141] When the decision results of at least one path of the cell within the threshold adjustment period are all failures, the air interface antenna calibration threshold is increased.

[0142] In some exemplary embodiments, the threshold adjustment module 502 is specifically configured to implement the reduction of the air interface antenna calibration threshold in the following manner: determining the convergence step corresponding to the air interface antenna calibration threshold based on the convergence adjustment step and adjustment amplification factor of the air interface antenna calibration threshold; and reducing the air interface antenna calibration threshold based on the convergence step.

[0143] In some exemplary embodiments, the threshold adjustment module 502 is specifically configured to increase the air interface antenna calibration threshold in the following manner: determine the relaxation step corresponding to the air interface antenna calibration threshold based on the relaxation adjustment step and adjustment amplification factor of the air interface antenna calibration threshold; and increase the air interface antenna calibration threshold according to the relaxation step corresponding to the air interface antenna calibration threshold.

[0144] The specific implementation process of the above-mentioned air interface antenna calibration threshold adjustment device is the same as the specific implementation process of the air interface antenna calibration threshold adjustment method of the above-mentioned embodiment, and will not be repeated here.

[0145] The above-mentioned air interface antenna calibration threshold adjustment device can be implemented using the software modules shown in Figure 6. As shown in Figure 6, the air interface antenna calibration threshold adjustment device includes a pRRU encoding module 601, a path bitmap generation module 602 and an AAC threshold adjustment module 603.

[0146] The pRRU encoding module 601 is configured to uniformly number the pRRUs in a cell according to the network topology of the pRRUs in the cell.

[0147] Among them, the path bitmap generation module 602 is configured to perform path judgment on each air interface antenna calibration period within the threshold adjustment period based on the second path judgment rule, and obtain the path judgment results of each air interface antenna calibration period; and generate a corresponding bitmap based on the path judgment results of each air interface antenna calibration period.

[0148] Among them, the AAC threshold adjustment module 603 is configured to determine the decision result of the cell path based on the bitmap; adjust the air interface antenna calibration threshold of the cell according to the decision result of the cell path, so that the air interface antenna calibration is performed according to the adjusted air interface antenna calibration threshold.

[0149] The specific implementation process of the above-mentioned air interface antenna calibration threshold adjustment device is the same as the specific implementation process of the air interface antenna calibration threshold adjustment method of the above-mentioned embodiment, and will not be repeated here.

[0150] In a third aspect, referring to FIG7 , another embodiment of the present disclosure provides an electronic device, including: at least one processor 701; a memory 702, wherein the memory 702 stores at least one program, and when the at least one program is executed by the at least one processor 701, any one of the above-mentioned air interface antenna calibration threshold adjustment methods is implemented.

[0151] In some exemplary embodiments, the electronic device further includes: one or more I / O interfaces 703 connected between the processor 701 and the memory 702 , and configured to implement information interaction between the processor 701 and the memory 702 .

[0152] Among them, the processor 701 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 702 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically such as SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and flash memory (FLASH); the I / O interface (read-write interface) 703 is connected between the processor 701 and the memory 702, and can realize information exchange between the processor 701 and the memory 702, including but not limited to a data bus (Bus), etc.

[0153] In some embodiments, the processor 701 , the memory 702 , and the I / O interface 703 are connected to each other via a bus 704 , and further connected to other components of the computing device.

[0154] In a fourth aspect, another embodiment of the present disclosure provides a computer-readable medium having a computer program stored thereon, and when the computer program is executed by a processor, any of the above-mentioned air interface antenna calibration threshold adjustment methods is implemented.

[0155] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As is well known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable, and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0156] Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for purposes of limitation. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly indicated, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the scope of the present disclosure as set forth in the appended claims.

Claims

1. A method for adjusting an air interface antenna calibration threshold, comprising: Determine each path of the cell within the threshold adjustment period based on the first path determination rule to obtain a determination result of the cell path; The air interface antenna calibration threshold of the cell is adjusted according to the decision result of the cell path, so that the air interface antenna calibration is performed according to the adjusted air interface antenna calibration threshold.

2. The air interface antenna calibration threshold adjustment method according to claim 1, wherein: The step of judging each path of the cell within the threshold adjustment period based on the first path judgment rule to obtain the judgment result of the cell path includes: For each path of the cell, path decision is performed on each air interface antenna calibration period within the threshold adjustment period based on a second path decision rule to obtain a path decision result of each air interface antenna calibration period; The decision result of the cell path is determined based on the first path decision rule according to the path decision results of each of the air interface antenna calibration cycles.

3. The air interface antenna calibration threshold adjustment method according to claim 2, wherein: For each path of the cell, performing path decision on each air interface antenna calibration period within the threshold adjustment period based on a second path decision rule to obtain a path decision result of each air interface antenna calibration period includes: For each path of the cell, respectively determine the path decision results of any two micro remote radio units pRRUs in the corresponding paths within each of the air interface antenna calibration periods based on the third path decision rule; Based on the second path decision rule, the path decision result of each air interface antenna calibration period is determined according to the decision results of all arbitrary two pRRUs in the corresponding path within each air interface antenna calibration period.

4. The air interface antenna calibration threshold adjustment method according to claim 3, wherein: The path decision results of each of the air interface antenna calibration cycles include at least one of the following: When the judgment results of any two pRRUs in the path corresponding to the air interface antenna calibration period show a successful judgment, determining that the path judgment result of the air interface antenna calibration period is a successful judgment; When the judgment result of at least one group of any two pRRUs in the path corresponding to the air interface antenna calibration period shows a judgment failure, it is determined that the path judgment result of the air interface antenna calibration period is a judgment failure.

5. The air interface antenna calibration threshold adjustment method according to claim 2, wherein: The decision result of the cell path includes at least one of the following: When the path decision result of at least one of the air interface antenna calibration cycles within the threshold adjustment cycle is a successful decision, determining that the decision result of the cell path within the threshold adjustment cycle is a successful decision; The path decision results of all the air interface antenna calibration cycles within the threshold adjustment cycle are all decision failures. In the case of a failure, determining that the decision result of the cell path within the threshold adjustment period is a decision failure.

6. The air interface antenna calibration threshold adjustment method according to any one of claims 1 to 5, wherein: Adjusting the air interface antenna calibration threshold of the cell according to the determination result of the cell path includes at least one of the following: When the judgment results of all paths of the cell within the threshold adjustment period are all successful, reducing the air interface antenna calibration threshold; When the decision result of at least one path of the cell within the threshold adjustment period is a decision failure, the air interface antenna calibration threshold is increased.

7. The air interface antenna calibration threshold adjustment method according to claim 6, wherein: The step of reducing the air interface antenna calibration threshold includes: Determine the convergence step size corresponding to the air interface antenna calibration threshold according to the convergence adjustment step size and the adjustment amplification factor of the air interface antenna calibration threshold; The air interface antenna calibration threshold is reduced according to the convergence step size.

8. The air interface antenna calibration threshold adjustment method according to claim 6, wherein: The step of increasing the air interface antenna calibration threshold comprises: Determine the relaxation step size corresponding to the air interface antenna calibration threshold according to the relaxation adjustment step size and the adjustment amplification factor of the air interface antenna calibration threshold; The air interface antenna calibration threshold is increased according to the relaxation step size corresponding to the air interface antenna calibration threshold.

9. An electronic device, comprising: at least one processor; A memory, wherein at least one program is stored in the memory, and when the at least one program is executed by the at least one processor, the air interface antenna calibration threshold adjustment method according to any one of claims 1 to 8 is implemented.

10. A computer-readable medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the air interface antenna calibration threshold adjustment method according to any one of claims 1 to 8.

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