Base station side dynamic collaborative decision-making method, base station and communication system

Abstract

The invention belongs to the technical field of 4G / 5G communication transmission, and discloses a base station side dynamic collaborative decision-making method, a base station and a communication system, and relates to the technical field of 4G and 5G communication, when the base station needs to configure a measurement gap, the signal transmission characteristic of a target frequency band is preferentially analyzed, the duration and the time sequence of a measurement window are dynamically adjusted, and the time sequence of the measurement window is dynamically adjusted. All possible wave beam sending opportunities are completely covered, so that the integrity and the reliability of adjacent region signal measurement data are improved; by analyzing the real-time uplink resource scheduling requirement of the terminal in real time, combining the measurement gap configuration state of other terminals in a service cell, constructing a time-frequency resource conflict prediction model, and intelligently selecting the time domain position of the measurement gap, the conflict with key service resources is avoided, the base station service interruption caused by multi-terminal concurrent measurement is reduced, and the user experience is improved. And the base station scheduling efficiency is obviously improved.

Description

Technical Field

[0001] This application belongs to the technical field of 4G / 5G communication transmission, and particularly relates to a dynamic collaborative decision-making method, a base station, and a communication system on the base station side. Background Art

[0002] The existing measurement gap configuration method in mobile communication systems has the following key defects: when the base station side issues measurement gap parameters, it fails to fully consider the terminal uplink resource scheduling requirements (such as the rank indication feedback period, the channel state information reporting window, etc.), resulting in the overlap of the measurement gap and the uplink grant in the time domain, causing the loss or transmission delay of key control signaling, directly affecting the accuracy of the base station's scheduling decision for the terminal, as Figure 3 shown.

[0003] The coverage mechanism of the traditional scheme for the candidate positions of synchronization signal blocks (SSBs) has design limitations: in the low-frequency band scenario, the fixed-period measurement window is difficult to match the diverse SSB transmission patterns (such as the slot offset characteristics of different Case types), resulting in insufficient integrity of neighbor cell signal detection; in the high-frequency band scenario, there is a lack of dynamic adaptation ability to the beam scanning timing, causing some beam transmission opportunities to fall outside the measurement window range, leading to the failure of handover measurement, as Figure 4 shown.

[0004] In addition, if the existing technology adopts a static configuration strategy in the multi-terminal concurrent measurement scenario, it cannot coordinate the measurement gap distribution of different terminals, resulting in the accumulation of periodic interruptions of the base station service resources, significantly reducing the overall network resource utilization rate. These systematic defects limit the network handover success rate and damage the terminal service continuity, restricting the improvement of the mobility management efficiency in heterogeneous network environments. Summary of the Invention

[0005] The embodiments of this application provide a dynamic collaborative decision-making method, a base station, and a communication system on the base station side, aiming to solve the technical problems that the traditional scheme fails to fully adapt to the multi-band signal characteristics and multi-terminal collaboration requirements when configuring the terminal measurement gap, resulting in insufficient integrity of neighbor cell signal detection, low base station resource utilization rate, and damaged terminal service continuity.

[0006] The technical solution adopted by the present invention is as follows: In the first aspect, the present invention provides a dynamic collaborative decision-making method on the base station side, including the following steps: Step S1: Obtain the cell configuration information of the inter-frequency neighbor cell to be measured, and determine whether the neighbor cell is a 5G cell; Step S2: If the neighbor cell is a 5G cell, determine the time domain distribution characteristics of the corresponding SSB burst set SSBBurst according to its frequency band and subcarrier spacing, including the SSB Case type, the symbol index set, and the burst set duration; Step S3: Analyze the periodic uplink resource configuration information of the terminal to generate a heat map of uplink resource occupancy. The uplink resources include the reporting windows of scheduling requests (SRs), channel state information (CSI), and rank indicators (RIs). Step S4: Based on the time-domain distribution characteristics of the SSB burst set and the heat map of uplink resource occupancy, calculate the conflict scores of candidate measurement gaps through a conflict evaluation model, and select the candidate position with the lowest score as the starting offset gapOffset of the target measurement gap. Step S5: Determine the measurement gap length (MGL) and the measurement gap period (MGRP) according to the maximum duration of the SSB burst set of neighboring cells and the network load status, generate measurement gap configuration parameters, and send them to the terminal.

[0007] The specific method for determining the time-domain distribution characteristics of the SSB burst set in Step S2 includes: According to the 3GPP TS 38.213 protocol, match the SSB Case type through the frequency band and subcarrier spacing, map it to the time-domain position according to the symbol index set, and calculate the total duration of the burst set.

[0008] In Step S4, the calculation method of the conflict score of the conflict evaluation model is:

[0009] where, represents the uplink resource conflict weight of subframe t, is the number of terminals in the measurement gap within subframe t, and α and β are adjustable weight coefficients and α + β = 1.

[0010] The adaptive adjustment rule of MGRP in Step S5 includes: When the terminal moving speed ≥ 30 km / h, set MGRP ≤ 40 ms; When the network load ≥ 70%, extend MGRP to 80 ms to reduce resource occupancy.

[0011] Furthermore, Step S4 also includes a multi-terminal cooperative scheduling strategy: The base station maintains a global measurement gap distribution table, and uses a tabu search algorithm to allocate gapOffset for new terminals, so that the number of concurrent measurement terminals in any subframe does not exceed a preset threshold.

[0012] In a second aspect, the present invention also provides a base station, including: A neighboring cell analysis module, configured to analyze the time-domain distribution characteristics of the SSB burst set of neighboring cells; A resource conflict prediction module, configured to generate a heat map of uplink resource occupancy and conflict scores; A dynamic scheduling module, configured to perform multi-terminal cooperative scheduling and generate measurement gap configuration parameters; The RRC configuration module is used to send a measurement gap configuration instruction to the terminal.

[0013] Preferably, the dynamic scheduling module further includes: a load awareness unit that monitors the network load status in real time and dynamically adjusts the MGRP; A beam matching unit that optimizes the time-domain alignment accuracy of the measurement window according to the beam scanning timing of neighboring cells.

[0014] In a third aspect, the present invention provides a communication system, including the base station described in the second aspect and multiple terminals, wherein: the terminals are configured to receive measurement gap parameters and switch to a target frequency point within a specified time slot to perform signal measurement; the neighboring cell SSB frequency points are shared among multiple base stations to jointly optimize the measurement gap configuration in the cross-base station handover scenario.

[0015] In a fourth aspect, the present invention further provides a computer-readable storage medium storing a computer program, and when the program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0016] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: 1. Before the base station sends a measurement gap configuration to the UE, it needs to view the neighboring cell frequency point information to determine the starting position of the UE measurement gap. When the neighboring cell information of the base station includes the frequency points of 5G cells, it is necessary to judge the frequency band where the cell is located, so as to judge all candidate SSB positions of the target neighboring cell, so as to ensure that the UE can measure the SSB of the target cell during the measurement gap duration, improving the accuracy and reliability of the measurement.

[0017] 2. When the base station allocates a measurement gap for the UE, it needs to view the uplink resource authorization and downlink resource allocation of the UE, and stagger the uplink resources configured by the base station for the UE according to different UE configurations, including but not limited to SR, CSI, SRS and other configurations, to avoid conflicts between the measurement gap and the UE's uplink service, while also improving the spectrum efficiency of the base station.

[0018] 3. When the base station allocates a measurement gap for the UE, it needs to view the measurement gap situation of other UEs in the current serving cell, and determine the measurement gap configured for the current UE according to the configurations of gapoffset, MGL and MGRP of other UEs, so as to avoid as much as possible multiple UEs entering the measurement gap state at the same time, improving the spectrum efficiency of the base station. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the base station SSB burst set provided by this application; Figure 2 This is a schematic diagram of the base station SSB Burst provided by this application; Figure 3 This is a schematic diagram of the Gap and SR resource conflict timing provided by this application; Figure 4 It is the Gap provided by this application that cannot cover the SSB schematic diagram; Figure 5 This is a schematic diagram of the Gap coverage SSB burst set provided by this application; Figure 6 This is a schematic diagram of the Gap and uplink resource staggering provided in the first embodiment of the present application; Figure 7 This is a schematic diagram of Gap considering SSB and uplink resource configuration provided by the second embodiment of the present application; Figure 8 The fourth embodiment of the present application provides increasing the UE uplink resource period value of the current subframe; Figure 9 This is a schematic diagram of increasing the number of all UEs entering the measurement gap in the current subframe provided by the fourth embodiment of the present application; Figure 10 This is a schematic diagram of the time domain starting position of UE candidate measurement gaps provided in the fourth embodiment of the present application. DETAILED DESCRIPTION

[0021] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0022] In 4G and 5G communication systems, the UE moves within the coverage area of the base station. When the UE moves to the cell edge, the UE will notify the base station that the signal quality of the UE in the current serving cell has fallen below the threshold value, and it may not be possible to ensure the integrity and reliability of subsequent UE communications. At this time, the base station needs to let the UE measure the target inter-frequency cell, and will issue a measurement gap to the corresponding UE, adjust the UE receiver to the target cell frequency, and perform inter-frequency measurement, so that the UE can switch to a cell with better signal quality in a timely manner, ensuring the continuity and reliability of UE communications. Since the frequencies of the serving cell and the measurement cell are different, it is impossible to perform uplink and downlink transmissions in the serving cell and measurements in the measurement cell simultaneously.

[0023] Since 5G has a higher frequency, the coverage area of the cell base station is reduced, and the propagation loss of the high-frequency carrier wave is large. Therefore, it is necessary to adopt the beamforming transmission method to increase the coverage distance of the wireless signal. At the same time, since the coverage angle of each beam is limited, 5G uses the beam scanning method to cover the service area of the entire cell. A cell usually needs to send multiple SSBs to complete a beam scanning so that the synchronization signal covers the service area of the entire cell. The SSBs required to complete a beam scanning form an SSB Burst.

[0024] The time corresponding to different frequencies of the SSB Burst in the 5G system is different because as the frequency increases, the number of SSB beams to increase the coverage also needs to increase. As defined in the 3GPP protocol, different frequency bands and different SSB subcarrier spacings correspond to different SSB Cases, and the SSB Case and the SSB subcarrier spacing together determine the time length of the SSB Burst, as shown in the following table:

[0025]

[0026] For the candidate SSB time domain position and SSB index of Case A, there is the following relationship: SSB_symbol_index = {2, 8} + 14·n When the carrier frequency is less than or equal to 3 GHz, the value of n is 0, 1. When the carrier frequency is within the FR1 range and greater than 3 GHz, the value of n is 0, 1, 2, 3.

[0027] For the candidate SSB time domain position and SSB index of Case B, there is the following relationship SSB_symbol_index = {4, 8, 16, 20} + 28·n When the carrier frequency is less than or equal to 3 GHz, the value of n is 0. When the carrier frequency is within the FR1 range and greater than 3 GHz, the value of n is 0, 1.

[0028] For the candidate SSB time domain positions in Case C, there is the following relationship with the SSB index SSB_symbol_index = {2, 8} + 14·n For the FDD mode, when the carrier frequency is less than or equal to 3 GHz, the value of n is 0, 1; for the carrier frequency within the FR1 range and greater than 3 GHz, the value of n is 0, 1, 2, 3. For the TDD mode, when the carrier frequency is less than or equal to 2.4 GHz, the value of n is 0, 1; for the carrier frequency within the FR1 range and greater than 2.4 GHz, the value of n is 0, 1, 2, 3.

[0029] For the candidate SSB time domain positions in Case D, there is the following relationship with the SSB index SSB_symbol_index = {4, 8, 16, 20} + 28·n For the carrier frequency within the FR2 range, the value of n is 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

[0030] For the candidate SSB time domain positions in Case E, there is the following relationship with the SSB index SSB_symbol_index = {8, 12, 16, 20, 32, 36, 40, 44} + 56·n For the carrier frequency within the FR2 range, the value of n is 0, 1, 2, 3, 5, 6, 7, 8.

[0031] Therefore, for the accuracy of terminal measurement, when configuring the UE measurement gap, it is necessary to consider the frequency bands and frequencies of 5G neighboring cells, and finally determine that the configured UE measurement gap needs to cover all SSB Bursts of 5G neighboring cells.

[0032] The limitations of the measurement gap configuration mechanism in existing mobile communication systems aim to systematically solve the following problems: When configuring the terminal measurement gap in the traditional scheme, it fails to fully adapt to the multi-band signal characteristics and multi-terminal cooperation requirements, resulting in insufficient integrity of neighboring cell signal detection, low utilization rate of base station resources, and impaired terminal service continuity.

[0033] Specifically, when the base station needs to configure a measurement gap, it first analyzes the signal transmission characteristics of the target frequency band (such as the distribution of candidate positions of synchronization signal blocks), dynamically adjusts the duration and timing of the measurement window to ensure complete coverage of all possible beam transmission opportunities, thereby improving the integrity and reliability of neighbor cell signal measurement data and providing support for accurate handover decisions. At the same time, by real-time analyzing the real-time uplink resource scheduling requirements of the terminal (including control signaling reporting windows, data transmission authorization periods, etc.), and combining the measurement gap configuration status of other terminals in the serving cell, a time-frequency resource conflict prediction model is constructed to intelligently select the time-domain position of the measurement gap, which not only avoids conflicts with critical service resources but also reduces the base station service interruption caused by concurrent measurements of multiple terminals.

[0034] Through the multi-dimensional dynamic coordination mechanism in this embodiment, efficient allocation of network resources and accurate execution of measurement tasks are achieved, significantly improving the base station scheduling efficiency, handover success rate, and terminal service experience.

[0035] The present invention proposes a method for a base station to configure a measurement gap. When the UE moves to the cell edge, the base station side can, according to the neighbor cell information and the UE's configuration, decide the start position and duration of the UE to measure the inter-frequency cell, and inform the UE through high-layer configuration. The specific method is as follows: Step 1: The UE accesses the serving cell of the base station, and the base station side issues the required uplink resource authorization and downlink resource allocation for this UE; Step 2: When the UE moves within the serving cell, it continuously monitors the signal quality. When it detects that it is approaching the coverage edge, it actively reports a measurement report to the base station; Step 3: After receiving the measurement report, the base station determines that it is necessary to initiate inter-frequency neighbor cell measurement to ensure the mobility of the UE and prepares to issue a measurement gap configuration; Step 4: The base station queries the adjacent cell configuration to determine whether there is a 5G cell in the inter-frequency target neighbor cell. If there is a 5G neighbor cell, it is necessary to further analyze its frequency band characteristics; otherwise, it jumps to Step 6; Step 5: For the 5G neighbor cell, determine the candidate transmission timing of the synchronization signal block (SSB) according to the frequency band characteristics (such as time slot offset, beam grouping). Configure the duration and start position of the measurement window to ensure coverage of all possible SSB transmission opportunities; Step 6: Analyze the uplink and downlink resource scheduling table of this UE, including but not limited to the SR period, CSI period, and SRS configuration, and dynamically adjust the time-domain position of the measurement gap, giving priority to avoiding high-priority service windows; Step 7: When the base station configures the UE measurement gap, it also needs to obtain the measurement gap configuration information of other online UEs in the serving cell. Adopt a distributed scheduling strategy to stagger the measurement window distributions of each UE and reduce the base station service interruption caused by concurrent measurements; Step 8: Finally, the base station issues a measurement gap configuration to the UE according to the neighbor cell information, the uplink and downlink resource configuration of the UE, and the current network load condition, including gapOffset, MGRP, and MGL. Step 9: After receiving the measurement gap configuration, the UE calculates the starting position of the measurement gap according to the gapOffset and MGRP parameters, and continuously measures the frequency points of the target neighbor cell for a period of time after the starting position under the indication of the MGL parameter.

[0036] Embodiment 1 As Figure 6 shown, assume that the UE accesses the serving cell of the base station, and the base station will allocate SR resources, CQI resources, RI resources, etc. to the accessed UE. Assume that the SR resources of this UE are the 5th subframe in every 10 ms period, the CQI resources are the 4th subframe in every 40 ms period, and the RI resources are the 4th subframe in every 40 ms period.

[0037] When the UE moves to the edge coverage of the cell, the base station needs to let the UE measure the signal strength of the inter-frequency cell so that the UE can switch to a cell with better channel quality in time. At this time, when the base station issues a measurement gap configuration to the UE, it needs to consider the current SR resources, CQI resources, and RI resources of the UE and avoid these uplink resources as much as possible.

[0038] For the 3GPP specification definition, the measurement gap configuration (measGapConfig) of the UE is indicated by a higher layer. After receiving the measurement gap configuration, the UE can calculate the starting position of the measurement gap in the time domain according to the indicated gap offset (gapOffset), measurement gap period (MGRP), and measurement gap length (MGL) through the following formula: SFN mod T = FLOOR(gapOffset / 10); subframe = gapOffset mod 10; with T = MGRP / 10 As Figure 6 shown, the starting position of the measurement gap can be placed in the 6th subframe of the 1st system frame, and the duration is 6 ms, that is, gapOffset is configured as 6, MGL is configured as ms6, and MGRP is configured as ms80.

[0039] Embodiment 2 Step 1: The UE accesses the serving cell of the base station, and the base station side issues the required uplink resource authorization for this UE. Assume that the SR resources configured for this UE are the 5th subframe in every 10 ms period, the CQI resources are the 4th subframe in every 40 ms period, and the RI resources are the 4th subframe in every 40 ms period; Step 2: When the UE moves within the serving cell and reaches the edge coverage of the cell, the UE will notify the base station by reporting a measurement report to the base station; Step 3: When the base station receives the measurement report reported by the UE, at this time, it is necessary to let the UE measure the signal strength of the inter-frequency cell and make the UE switch to the cell with better signal quality; Step 4: The base station queries the neighbor cell information and finds that there are 5G neighbor cells, and the neighbor cell information includes different frequency bands and frequencies, as shown in the following table;

[0040] When the frequency band is Band 41 (frequency range 2496 MHz–2690 MHz) and the SSB subcarrier spacing is 15 kHz, the corresponding SSB Burst is 2 ms; when the frequency band is Band 79 (frequency range 4400 MHz–5000 MHz) and the SSB subcarrier spacing is 30 kHz, the corresponding SSB Burst is 4 ms; when the frequency band is Band 258 (frequency range 24250 MHz–27500 MHz) and the SSB subcarrier spacing is 120 kHz, the corresponding SSB Burst is 5 ms; Step 5: Through Step 4, list all the possibilities of the SSB Burst of the 5G neighbor cell. As shown by Figure 8 , the maximum SSB Burst can be obtained as 5 ms. Therefore, when selecting the starting position of the measurement gap for the UE, it can be selected at the 9th subframe of the 2nd system frame or the 0th subframe of the 3rd system frame; Step 6: When the base station configures the measurement gap for the UE, it needs to consider the configuration sent by the base station side to the UE, and stagger the configuration of the uplink resources as much as possible to avoid conflicts with it. From the time domain positions of the CQI resource, RI resource, and SR resource in Figure 8 and the candidate positions in Step 5, the 9th subframe of the 2nd system frame can be selected as the starting position of the measurement gap; Step 7: Finally, the base station issues a measurement gap configuration to the UE according to the neighbor cell information, the uplink resource configuration of the UE, and the measurement gap situation of other UEs, including gapOffset, MGRP, and MGL. Among them, gapOffset is configured as 19, MGL is configured as ms6, and MGRP is configured as ms80.

[0041] Step 8: After the UE receives the measurement gap configuration, it calculates the starting position of the measurement gap according to the gapOffset and MGRP parameters, and continuously measures the frequency points of the target neighbor cell for a period of time after the starting position under the indication of the MGL parameter, as shown in Figure 7 .

[0042] Embodiment III When the base station configures the access UE measurement gap configuration, it not only needs to consider that the measurement gap does not conflict with the uplink and downlink resources, but also cover all possible time-domain positions where the 5G neighbor cells transmit SSBs, and also consider the measurement gap configuration of all UEs in the serving cell, minimize the number of UEs entering the measurement gap simultaneously, and reasonably allocate the time-frequency domain resources of the base station.

[0043] Step 1: The UE accesses the serving cell of the base station, and the base station side issues the required uplink resource grant and downlink resource allocation for this UE.

[0044] Step 2: When the UE moves in the serving cell and reaches the edge coverage of the cell, the UE will notify the base station by reporting a measurement report to the base station.

[0045] Step 3: When the base station receives the measurement report reported by the UE, at this time, it is necessary to let the UE measure the signal strength of the inter-frequency cell and make the UE switch to a cell with better signal quality.

[0046] Step 4: When the base station configures the UE measurement gap, it needs to consider the configuration issued by the base station side to the UE. At this time, define an array for the UE to record the proportion weights of possible uplink resource allocations or other UEs with configured measurement gaps on each subframe, as the basis for considering the current UE's measurement gap configuration. Assume that the SR resource configured for the current UE is the 4th subframe in every 10ms cycle, the CQI resource is the 5th subframe in every 20ms cycle, and the RI subframe is the 19th subframe in every 80ms. At this time, fill in the cycle value of the uplink resource at the corresponding subframe position in the array, as follows Figure 8 as shown.

[0047] Step 5: When the base station configures the UE measurement gap, it also needs to consider the measurement gap configuration of other online UEs in the serving cell. In order to stagger the measurement gaps from other UEs, add the number of all UEs entering the measurement gap in the current subframe to the corresponding subframe in the above array, as Figure 9 as shown.

[0048] Step 6: If the target neighbor cell is a 5G cell and its frequency band where the frequency point is located is known, then the time-domain positions of all candidate SSB beams transmitted by the target neighbor cell can be judged. Assume that the time-domain positions where all possible SSBs are transmitted by the target 5G neighbor cell are the 0th subframe and the first subframe in every 20ms. At this time, the starting time-domain position of the UE measurement gap can be configured in the 0th subframe or the 17th - 20th subframe in every 20ms, ensuring that the configured measurement gap can cover all possible time-domain positions where the target neighbor cell transmits SSBs.

[0049] Step 7: Finally, the base station obtains a subframe-level array through Steps 4 and 5, and obtains all candidate measurement gap start time domain positions in Step 6. Calculate the sum of the values of all candidate measurement gap start time domain positions within the 6 ms measurement gap duration, and select a minimum value as the UE measurement gap start time domain position, as Figure 10 shown.

[0050] Step 8: Finally, based on the neighbor cell information, the uplink and downlink resource configuration of the UE, and the measurement gap situation of other UEs, the base station can place the start time domain position of the measurement gap in the 8th subframe of the 5th system frame, with a duration of 6 ms, that is, gapOffset is configured as 49, MGL is configured as ms6, and MGRP is configured as ms80.

[0051] Step 9: After receiving the measurement gap configuration, the UE calculates the measurement gap start position according to the gapOffset and MGRP parameters, and continuously measures the frequency points of the target neighbor cell for a period of time after the start position under the indication of the MGL parameter.

[0052] For a clearer expression, the semantic explanations of technical terms are as follows: UE: User Equipment, user equipment SSB: Synchronization Signal and PBCH block, synchronization signal and PBCH block MGRP: Measurement Gap Repetition Period, measurement gap repetition period MGL: Measurement Gap Length, measurement gap length SR: Scheduling Request, scheduling request CQI: Channel Quality Indicator, channel quality indicator RI: Rank Indicator, rank indicator It should be noted that for the information interaction, execution process, etc. between the above-mentioned devices / units, since they are based on the same concept as the method embodiment of this application, for their specific functions and the technical effects brought, please refer to the method embodiment part for details, and will not be elaborated here.

[0053] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be assigned to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiments can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working processes of the units and modules in the above system can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0054] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0055] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0056] In the embodiments provided in this application, it should be understood that the disclosed device / network device and method can be implemented in other ways. For example, the device / network device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical functional division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical, mechanical or other form.

[0057] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0058] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A dynamic collaborative decision-making method on the base station side, characterized in that, It includes the following steps: Step S1: Obtain the cell configuration information of the inter-frequency neighboring cell to be measured, and determine whether the neighboring cell is a 5G cell; Step S2: If the neighboring cell is a 5G cell, determine the time-domain distribution characteristics of the corresponding SSB Burst of the SSB burst set according to its frequency band and subcarrier spacing, including the SSB Case type, symbol index set, and burst set duration; Step S3: Analyze the periodic uplink resource configuration information of the terminal to generate a heat map of uplink resource occupancy. The uplink resources include the reporting windows of the scheduling request SR, channel state information CSI, and rank indication RI; Step S4: Based on the time-domain distribution characteristics of the SSB burst set and the heat map of uplink resource occupancy, calculate the conflict score of the candidate measurement gap through a conflict evaluation model, and select the candidate position with the lowest score as the starting offset gapOffset of the target measurement gap; Step S5: Determine the measurement gap length MGL and measurement gap period MGRP according to the maximum duration of the neighboring cell SSB burst set and the network load status, generate measurement gap configuration parameters, and send them to the terminal.

2. The method according to claim 1, wherein The specific method for determining the time-domain distribution characteristics of the SSB burst set in step S2 includes: According to the 3GPP TS 38.213 protocol, match the SSB Case type through the frequency band and subcarrier spacing, map it to the time-domain position according to the symbol index set, and calculate the total duration of the burst set.

3. The method according to claim 1, wherein The conflict score calculation method of the conflict evaluation model in step S4 is: ; Among them, represents the uplink resource conflict weight of subframe t, is the number of terminals in the measurement gap within subframe t, and α and β are adjustable weight coefficients and α + β = 1.

4. The method according to claim 1, wherein The adaptive adjustment rule of MGRP in step S5 includes: When the terminal moving speed ≥ 30 km / h, set MGRP ≤ 40 ms; When the network load ≥ 70%, extend MGRP to 80 ms to reduce resource occupancy.

5. The method according to claim 1, characterized in that Step S4 further includes a multi-terminal cooperative scheduling strategy: The base station maintains a global measurement gap distribution table and uses a tabu search algorithm to allocate gapOffset for new terminals, so that the number of concurrent measurement terminals in any subframe does not exceed the preset threshold.

6. A base station, characterized in that, It includes: A neighboring cell analysis module for analyzing the time-domain distribution characteristics of the neighboring cell SSB burst set; A resource conflict prediction module for generating a heat map of uplink resource occupancy and conflict scores; A dynamic scheduling module for performing multi-terminal cooperative scheduling and generating measurement gap configuration parameters; An RRC configuration module for sending a measurement gap configuration instruction to the terminal.

7. The base station according to claim 6, characterized in that, The dynamic scheduling module further includes: a load perception unit for real-time monitoring of the network load status and dynamically adjusting MGRP; A beam matching unit for optimizing the time-domain alignment accuracy of the measurement window according to the neighboring cell beam scanning timing.

8. A communication system, characterized in that, It includes the base station according to any one of claims 6-7 and multiple terminals, wherein: the terminal is configured to receive measurement gap parameters and switch to the target frequency point within the specified time slot to perform signal measurement; the neighboring cell SSB frequency points are shared among multiple base stations to jointly optimize the measurement gap configuration in the cross-base station handover scenario.

9. A computer-readable storage medium storing a computer program, characterized in that, When the program is executed by a processor, it implements the steps of the method according to any one of claims 1-5.

Images