CN115134020A

CN115134020A - Method and device for compensating reference signal received power and storage medium

Info

Publication number: CN115134020A
Application number: CN202110315374.2A
Authority: CN
Inventors: 李腾飞
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2022-09-30
Also published as: WO2022199088A1

Abstract

The invention provides a compensation method and a device for reference signal receiving power and a storage medium, wherein the method comprises the following steps: acquiring resource block RB map information, measurement bandwidth and subcarrier intervals of a plurality of target cells after power reduction operation is carried out on cell reference signals CRSs of the target cells; according to the RB map information, the measurement bandwidth and the subcarrier spacing, Reference Signal Received Power (RSRP) measurement compensation quantities corresponding to the target cells respectively are determined, RSRP measurement values determined according to the CRS after power reduction operation are compensated according to the RSRP measurement compensation quantities, namely the RSRP measurement values determined according to the CRS after power reduction operation are compensated through the determined RSRP measurement compensation quantities.

Description

Method and device for compensating reference signal received power and storage medium

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for compensating for reference signal received power, and a storage medium.

Background

In a Long Term Evolution (LTE) mobile communication system, a terminal mainly measures a Cell Reference Signal (CRS) to estimate a Cell Reference Signal Received Power (RSRP), and a base station preferentially selects a Cell with a better RSRP for the terminal to camp on according to an RSRP measurement report result of the terminal.

In a spectrum sharing scenario, an LTE System cell may share a frequency resource with System cells such as a Global System for Mobile Communications (GSM), a Universal Mobile Telecommunications System (UMTS), a New air interface (NR), and the like. As shown in fig. 3, in order to reduce the interference problem generated to other system cells, the LTE cell performs power reduction operation on the CRS in the partial frequency domain position, which results in that the RSRP measurement result of the terminal on the LTE cell is low and cannot reflect the real coverage condition of the cell. Due to different actual bandwidths measured by each cell, RSRP measurement deviations are different, which may cause serious problems such as ping-pong handover, ping-pong reselection, dropped connection, offline and the like of the terminal.

Aiming at the serious problems of terminal ping-pong switching, ping-pong reselection, disconnection, offline and the like caused by a low Reference Signal Received Power (RSRP) measurement result of a terminal to a target cell for a CRS after power reduction operation in the related technology, an effective technical scheme is not provided.

Disclosure of Invention

The embodiment of the invention provides a method and a device for compensating reference signal received power and a storage medium, which are used for at least solving the serious problems of terminal ping-pong switching, ping-pong reselection, disconnection, offline and the like caused by a low Reference Signal Received Power (RSRP) measurement result of a terminal to a target cell for a CRS after power reduction operation in the related art.

The embodiment of the invention provides a compensation method for reference signal receiving power, which comprises the following steps: acquiring resource block RB map information, measurement bandwidth and subcarrier intervals of a plurality of target cells after power reduction operation is carried out on cell reference signals CRSs of the target cells; and determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing, so as to compensate the RSRP measurement value determined according to the CRS after power reduction operation according to the RSRP measurement compensation quantities.

Optionally, determining, according to the RB map information, the measurement bandwidth, and the subcarrier spacing, reference signal received power RSRP measurement compensation amounts respectively corresponding to the multiple target cells, includes: for any cell in the target cells, determining first RB map information, a first measurement bandwidth and a first subcarrier interval corresponding to the cell from the RB map information, the measurement bandwidth and the subcarrier interval; determining that the number of CRS RBs of the power not reduced in the first measurement bandwidth of any cell is m, the number of CRS RBs of the power reduced Q1 dB is n1, the number of CRS RBs of the power reduced Q2 dB is n2, … …, and the number of CRS RBs of the power reduced Qx dB is nx according to the first RB map information, the first measurement bandwidth and the first subcarrier spacing, wherein x is an integer greater than 2, m, n1, n2, … …, nx is a positive number, Q1, Q2, … …, and Qx is a positive number; determining the RSRP measurement compensation amount according to the m, Q1, n1, Q2, n2, … …, Qx and nx.

Optionally, determining the RSRP measurement compensation amount according to the m, Q1, n1, Q2, n2, … …, Qx, and nx comprises: acquiring the transmission power P corresponding to a CRS signal of any cell before power reduction operation; determining the RSRP measurement compensation quantity R according to the following formula:

optionally, determining the RSRP measurement compensation amount according to the m, Q1, n1, Q2, n2, … …, Qx, and nx comprises: obtaining an adjusting factor RSRP of the RSRP of any cell _AdjFactor (ii) a Determining the RSRP measurement compensation quantity R according to the following formula:

wherein T is the total RB number of the first measurement bandwidth, U is the RB number of the first measurement bandwidth which is not reduced in power, Y is the RB number of the first measurement bandwidth which is reduced in power, and T, U and Y are positive numbers.

Optionally, after determining reference signal received power, RSRP, measurement compensation quantities respectively corresponding to the target cells according to the RB spectrum information, the measurement bandwidth, and the subcarrier spacing, so as to compensate, according to the RSRP measurement compensation quantities, RSRP measurement values determined according to the CRS after power reduction operation, the method further includes: acquiring a first RSRP measurement compensation quantity of a serving cell and a second RSRP measurement compensation quantity of an adjacent cell from the RSRP measurement compensation quantities; and respectively compensating the configuration values of the terminal in a connection state and an idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity.

Optionally, respectively compensating the configuration values of the terminal in the connected state and the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, including: in the process of cell selection, reducing the minimum access level configuration value of the service cell by the first RSRP measurement compensation amount; and sending the reduced minimum access level configuration value of the serving cell to the terminal through broadcasting.

Optionally, respectively compensating the configuration values of the terminal in the connected state and the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, including: under the condition of reselecting the pilot frequency cells with the same frequency or the same priority, the serving cell reselection hysteresis configuration value is increased by the first RSRP measurement compensation amount, and all the neighboring cell reselection individual offset configuration values are decreased by the second RSRP measurement compensation amount; and sending the increased serving cell reselection hysteresis configuration value and the decreased all adjacent cell reselection individual offset configuration values to the terminal through broadcasting.

Optionally, respectively compensating the configuration values of the terminal in the connected state and the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, including: reducing the serving cell minimum access level configuration value by the first RSRP measurement compensation amount and reducing all neighboring cell minimum access level configuration values by the second RSRP measurement compensation amount under the condition of high or low priority inter-frequency cell reselection; and sending the reduced minimum access level configuration value of the service cell and the reduced minimum access level configuration values of all the adjacent cells to the terminal through broadcasting.

Optionally, reducing the a1 event measurement threshold configuration value by the first RSRP measurement offset; reducing the a2 event measurement threshold configuration value by the first RSRP measurement offset; increasing the individual offset configuration value of the serving cell or the a3 event offset configuration value by the first RSRP measurement compensation amount and the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount; increasing the cell individual offset configuration values of all the adjacent cells corresponding to the A4 measurement event by the second RSRP measurement compensation amount; decreasing the a5 event measurement threshold1 configuration value of the serving cell by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount; increasing the cell individual offset configuration value of the serving cell or the a6 event offset configuration value by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount.

Optionally, increasing the cell individual offset of all neighbouring cells in the B1 event by the second RSRP measurement offset; reducing the B2 event measurement threshold1 configuration value of the serving cell by a first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all the adjacent cells by the second RSRP measurement compensation amount.

According to another embodiment of the present invention, there is also provided an apparatus for compensating for reference signal received power, including: an obtaining module, configured to obtain resource block RB map information, measurement bandwidth, and subcarrier spacing of multiple target cells after performing power reduction operation on cell reference signals CRS of the multiple target cells; and the compensation module is used for determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing, so as to compensate RSRP measurement values determined according to the CRS after the power reduction operation according to the RSRP measurement compensation quantities.

According to a further embodiment of the present invention, a computer-readable storage medium is also provided, in which a computer program is stored, wherein the computer program is configured to perform the steps of any of the above-described method embodiments when executed.

According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.

By the technical scheme, after power reduction operation is carried out on cell reference signals CRSs of a plurality of target cells, resource block RB map information, measurement bandwidth and subcarrier intervals of the plurality of target cells are obtained; according to the RB map information, the measurement bandwidth and the subcarrier spacing, Reference Signal Received Power (RSRP) measurement compensation quantities corresponding to the target cells respectively are determined, RSRP measurement values determined according to the CRS after power reduction operation are compensated according to the RSRP measurement compensation quantities, namely the RSRP measurement values determined according to the CRS after power reduction operation are compensated through the RSRP measurement compensation quantities, by adopting the technology, the serious problems of ping-pong switching, ping-pong reselection, line drop, network disconnection and the like caused by the fact that the RSRP measurement results of the Reference Signal Received Power (RSRP) of the target cells are low for the CRS after power reduction operation in the related technology are solved, and the terminal is guaranteed to preferentially reside in the cell with better actual coverage.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

fig. 1 is a block diagram of a hardware configuration of a computer terminal of a method for compensating for a reference signal received power according to an embodiment of the present invention;

fig. 2 is a flowchart of a method of compensating for reference signal received power according to an embodiment of the present invention;

fig. 3 is a schematic power reduction diagram of a serving cell and a neighboring cell CRS according to an embodiment of the present invention;

fig. 4 is a block diagram of a compensation apparatus for reference signal received power according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The method provided by the embodiment of the application can be executed in a mobile terminal, a computer terminal or a similar operation device. Taking the example of running on a computer terminal, fig. 1 is a block diagram of a hardware structure of the computer terminal of a compensation method for reference signal received power according to an embodiment of the present invention. As shown in fig. 1, the computer terminal may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally, a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the computer terminal. For example, a computer terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration with equivalent functionality to that shown in FIG. 1 or more functionality than that shown in FIG. 1. The memory 104 may be used to store a computer program, for example, a software program of an application software and a module, such as a computer program corresponding to the method for compensating the reference signal received power in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 can further include memory located remotely from the processor 102, which can be connected to a computer terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

According to an embodiment of the present invention, there is provided a method for compensating reference signal received power, which is applied to the computer terminal, and fig. 2 is a flowchart of the method for compensating reference signal received power according to the embodiment of the present invention, as shown in fig. 2, including:

step S202, obtaining resource block RB map information, measurement bandwidth and subcarrier spacing of a plurality of target cells after power reduction operation is carried out on cell reference signals CRSs of the target cells;

step S204, according to the RB map information, the measurement bandwidth and the subcarrier spacing, Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells are determined, and RSRP measurement values determined according to the CRS after power reduction operation are compensated according to the RSRP measurement compensation quantities.

Through the steps, resource block RB map information, measurement bandwidth and subcarrier intervals of a plurality of target cells are obtained after power reduction operation is carried out on cell reference signals CRSs of the target cells; according to the RB map information, the measurement bandwidth and the subcarrier spacing, Reference Signal Received Power (RSRP) measurement compensation quantities corresponding to the target cells respectively are determined, RSRP measurement values determined according to the CRS after power reduction operation are compensated according to the RSRP measurement compensation quantities, namely the RSRP measurement values determined according to the CRS after power reduction operation are compensated through the RSRP measurement compensation quantities, by adopting the technology, the serious problems of ping-pong switching, ping-pong reselection, line drop, network disconnection and the like caused by the fact that the RSRP measurement results of the Reference Signal Received Power (RSRP) of the target cells are low for the CRS after power reduction operation in the related technology are solved, and the terminal is guaranteed to preferentially reside in the cell with better actual coverage.

In step S202, resource block RB map information after performing power down operation on cell reference signals CRSs of multiple target cells may be obtained in multiple ways such as X2 linking, webmaster query, manual configuration, and the like, which is not limited in the embodiment of the present invention, and the resource block RB map information is specifically "RB 1:0dB, RB2:0dB,. once.. multidot.rb 50:0dB, RB51:3dB,. once.. multidot.rb 99:3dB, RB100:3 dB", where RBX: Q dB represents that power of a target cell on an X-th CRS is reduced by Q dB. Since the RB map information only needs to express specific RB information corresponding to clear CRS power reduction, it is also possible to transmit only RB map information with reduced power, for example: the values "RB 51:3dB,. No. RB99:3dB," RB100:3dB, "or" RB51 — RB100:3dB "are only for better understanding of the embodiments of the present invention, and may be any values in practical processes, which is not limited by the embodiments of the present invention.

In one exemplary embodiment, for any cell of the plurality of target cells, first RB map information, a first measurement bandwidth, and a first subcarrier spacing corresponding to the any cell are determined from the RB map information, the measurement bandwidth, and the subcarrier spacing; determining that the number of CRS RBs of the power not reduced in the first measurement bandwidth of any cell is m, the number of CRS RBs of the power reduced Q1 dB is n1, the number of CRS RBs of the power reduced Q2 dB is n2, … …, and the number of CRS RBs of the power reduced Qx dB is nx according to the first RB map information, the first measurement bandwidth and the first subcarrier spacing, wherein x is an integer greater than 2, m, n1, n2, … …, nx is a positive number, Q1, Q2, … …, and Qx is a positive number; determining the RSRP measurement compensation amount according to the m, Q1, n1, Q2, n2, … …, Qx and nx.

In other words, the first RB pattern information, the first measurement bandwidth and the first subcarrier spacing corresponding to any one of the plurality of target cells are determined; determining the total number of RBs in the first measurement bandwidth according to the first measurement bandwidth and the first subcarrier interval, determining the number of CRS RBs with power not reduced and the number of CRS RBs with reduced power Q dB according to the first RB map information, specifically, determining the number of CRS RBs with power reduced Q1 dB as n1, the number of CRS RBs with power reduced Q2 dB as n2 and … …, and the number of CRS RBs with power reduced Qx dB as nx, wherein X is an integer greater than 2, for example, when X is 3, the number of CRS RBs with power reduced Q1 dB is n1, the number of CRS RBs with power reduced Q2 dB is n2, and the number of CRS RBs with power reduced Q3 dB is n 3; when X is 4, the number of CRS RBs of the power-down Q1 dB is n1, the number of CRS RBs of the power-down Q2 dB is n2, the number of CRS RBs of the power-down Q3 dB is n3, and the number of CRS RBs of the power-down Q4 dB is n 4.

Further, determining the RSRP measurement compensation amount according to the m, Q1, n1, Q2, n2, … …, Qx, and nx, and acquiring the transmission power P corresponding to the CRS signal of any cell before power reduction operation; determining the RSRP measurement compensation quantity R according to the following formula:

it should be noted that the boundary of the measurement bandwidth may only contain a part of the whole RBs, the number n1, n2, … …, nx of RBs of the CRS with unreduced power in the measurement bandwidth in the above formula may be a decimal number, such as 1.5, etc., the terminal may explicitly know the size of the serving cell bandwidth, but the terminal may not be limited by the measurement bandwidth for the measurement of the serving cell RSRP, and for this case, the measurement bandwidth for the measurement of the serving cell RSRP may be uniformly calculated according to the full cell bandwidth.

Further, an adjusting factor RSRP of the RSRP of any cell is obtained _AdjFactor (ii) a Determining the RSRP measurement compensation quantity R according to the following formula:

That is, during the RSRP measurement, there may be operations of filtering, smoothing, interpolation, etc. in the terminal, so that through the above formula:

an error exists between the calculated value and the theoretical value obtained in the actual situation, so that the RSRP of the adjusting factor can be increased in the formula _AdjFactor Adjusting the factor RSRP _AdjFactor The value range of (A) is 0-1, the value of the adjustment factor is determined according to the actual situation, and the adjustment factor RSRP is increased _AdjFactor Correspondingly adjusting the formula, wherein the adjusted RSRP measurement compensation quantity calculation formula is as follows:

t is the total RB number of the first measurement bandwidth, U is the RB number of the first measurement bandwidth with unreduced power, and Y is the RB number of the first measurement bandwidth with reduced power.

Further, according to the RB map information, the measurement bandwidth, and the subcarrier spacing, reference signal received power, RSRP, measurement compensation quantities respectively corresponding to the target cells are determined, so that after the RSRP measurement values determined according to the CRS after power reduction operation are compensated according to the RSRP measurement compensation quantities, a first RSRP measurement compensation quantity of the serving cell and a second RSRP measurement compensation quantity of an adjacent cell are obtained from the RSRP measurement compensation quantities; and respectively compensating the configuration values of the terminal in a connection state and an idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity.

That is, the RSRP measurement compensation amounts of the serving cell and the neighboring cells are determined by the above formula, and the first RSRP measurement compensation amount of the serving cell and the second RSR corresponding to the neighboring cells are determinedAfter the P measures the compensation amount, the configuration values of the terminal in the connected state and the idle state are compensated respectively, and the configuration values of the terminal in the connected state mainly include: minimum access level Q of serving cell and adjacent cell _rxlevmin Configuration value, serving cell reselection hysteresis Q _hyst Configuration value, adjacent cell reselection individual offset Q _offsets,n And configuring the value.

Further, the configuration value of the terminal in the idle state is compensated according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, and the compensation is performed on the configuration value in the idle state, which is mainly embodied in that compensation is performed on parameters corresponding to cell selection and cell reselection, and the details are as follows:

1) in the process of cell selection, reducing the minimum access level configuration value of the service cell by the first RSRP measurement compensation amount; sending the reduced minimum access level configuration value of the serving cell to the terminal through broadcasting;

2) under the condition of reselecting the pilot frequency cells with the same frequency or the same priority, increasing the serving cell reselection hysteresis configuration value by the first RSRP measurement compensation amount, and decreasing the second RSRP measurement compensation amount by all the reselected individual offset configuration values of the adjacent cells; the increased serving cell reselection hysteresis configuration value and the decreased all adjacent cell reselection individual offset configuration values are sent to the terminal through broadcasting;

3) reducing the serving cell minimum access level configuration value by the first RSRP measurement compensation amount and reducing all neighboring cell minimum access level configuration values by the second RSRP measurement compensation amount under the condition of high or low priority inter-frequency cell reselection; and transmitting the reduced minimum access level configuration value of the service cell and the reduced minimum access level configuration values of all the adjacent cells to the terminal through broadcasting.

That is, the compensation of the configuration value for the idle state is mainly performed by the minimum access level Q to the serving cell and the neighbor cell _rxlevmin Configuration value, serving cell reselection hysteresis Q _hyst Configuration value, adjacent cell reselection individual offset Q _offsets,n Compensating the configuration value to respectively provide service under different situationsMinimum access level Q of cell and adjacent cell _rxlevmin Configuration value, serving cell reselection hysteresis Q _hyst Configuration value, adjacent cell reselection individual offset Q _offsets,n And compensating at least one of the configuration values, broadcasting the compensated configuration value to the terminal, and compensating the configuration value in an idle state to prevent the terminal from having the problems of ping-pong reselection, offline and the like, thereby ensuring that the terminal preferentially resides in a cell with better actual coverage.

In another exemplary embodiment, compensating the configuration value of the terminal in the connected state according to the first RSRP measurement compensation amount and the second RSRP measurement compensation amount includes:

1) reducing the a1 event measurement threshold configuration value by the first RSRP measurement offset;

2) reducing the a2 event measurement threshold configuration value by the first RSRP measurement offset;

3) increasing the individual offset configuration value of the serving cell or the A3 event offset configuration value by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

4) increasing the cell individual offset configuration values of all the adjacent cells corresponding to the A4 measurement event by the second RSRP measurement compensation amount;

5) decreasing the a5 event measurement threshold1 configuration value of the serving cell by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

6) increasing the cell individual offset configuration value of the serving cell or the a6 event offset configuration value by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

7) increasing cell individual offsets of all neighboring cells in the B1 event by the second RSRP measurement offset;

8) and reducing the B2 event measurement threshold1 configuration value of the serving cell by a first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all the adjacent cells by the second RSRP measurement compensation amount.

Further, in the case of various event-type and periodic measurement reports received by the base station, RSRP measurement compensation amounts also need to be added to RSRP measurement results of the serving cell and all neighboring cells as final RSRP measurement results.

It should be noted that before the configuration values of the terminal in the connected state and the idle state are respectively compensated according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, if the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity are not matched with the protocol values, the closest protocol values may be taken as the final first RSRP measurement compensation quantity and the final second RSRP measurement compensation quantity according to absolute values, or the closest protocol values may be taken as the final first RSRP measurement compensation quantity and the final second RSRP measurement compensation quantity according to an upward or downward principle, and the final first RSRP measurement compensation quantity and the final second RSRP measurement compensation quantity are broadcasted or reconfigured; further, a compensation upper limit may also be set for the configuration values in the connected state and the idle state, so as to prevent a large deviation from the measured configuration values after the configuration values in the connected state and the idle state of the terminal are compensated according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity.

It should be further noted that the method for compensating the reference signal received power is applicable to a compensation strategy configured by an NR system for LTE connection and idle measurement, and is also applicable to systems using RSRP compensation strategies of other similar measurement mechanisms, such as LTE and 3GPP, where the RSRP compensation amount may be adjusted accordingly when a cell attribute changes back and forth between an adjacent cell and a serving cell in a carrier aggregation scenario.

The following explains the flow of the above-mentioned reference signal received power compensation method with several alternative embodiments, but is not intended to limit the technical solution of the embodiments of the present invention.

The compensation method for the reference signal received power of the embodiment of the invention specifically comprises the following steps:

step 1: the base station collects RB map information of CRS power reduction of a serving cell and an adjacent cell, measurement bandwidths of the serving cell and the adjacent cell and subcarrier intervals of the serving cell and the adjacent cell;

it should be noted that the manners of collecting the RB map information of CRS power reduction include, but are not limited to, obtaining through X2 link, obtaining through network management query, obtaining through manual configuration, and the like; in step 1, the information of the RB map for CRS power reduction is, for example, "RB 1:0dB, RB2:0dB, … … RB50:0dB, RB51:3dB, … … RB99:3dB, RB100:3 dB", where RBX: Q dB represents that the CRS power of the target cell on the xth RB is reduced by Q dB. Since the RB map information only needs to express the specific RB information corresponding to the CRS power reduction, in order to save the size of the information interaction message between the serving cell and the neighboring cell, only the RB map information with reduced power may be transmitted, for example: "RB 51:3dB, … … RB99:3dB, RB100:3 dB", or "RB 51-RB 100:3 dB", represents that the CRS power of the target cell on the 51 st to 100 th RBs is reduced by 3dB, as shown in FIG. 3, and FIG. 3 is a schematic power reduction diagram of the CRS of the serving cell and the adjacent cell according to the embodiment of the present invention.

Step 2: the base station obtains the transmission power P corresponding to a CRS signal before power reduction operation of any cell of a serving cell and an adjacent cell according to the measurement bandwidth, the subcarrier spacing and the RB map information of CRS power reduction of the serving cell and the adjacent cell, and determines the RSRP measurement compensation quantity of all the serving cell and the adjacent cell according to the following formula:

wherein m is the number of CRS RBs of undecreased power in the measurement bandwidth, the number of CRS RBs of power reduction Q1 dB is n1, the number of CRS RBs of power reduction Q2 dB is n2, … …, and the number of CRS RBs of power reduction Qx dB is nx.

Because the terminal may also have operations such as filtering, smoothing, interpolation and the like in the RSRP measurement process, an error exists between a calculated value obtained according to the above calculation formula and a theoretical value obtained in an actual situation, so that an adjustment factor RSRP may also be added in the above formula _AdjFactor Adjusting factor RSRP _AdjFactor Is in the range of 0-1, and the RSRP is adjusted by increasing the adjusting factor _AdjFactor Correspondingly adjusting the formula, wherein the adjusted RSRP measurement compensation quantity calculation formula is as follows:

t is the total RB number of the measurement bandwidth, U is the RB number of the measurement bandwidth with unreduced power, and Y is the RB number of the measurement bandwidth with reduced power.

It should be noted that the boundary of the measurement bandwidth may only include a part of the whole RBs, and the number of CRS RBs whose power is not reduced in the measurement bandwidth in the above formula may be a decimal number, such as 1.5. In addition, the terminal may know the serving cell bandwidth size explicitly, but the terminal may not be limited by the measurement bandwidth for the serving cell RSRP measurement, for which case the terminal may calculate the measurement bandwidth in the serving cell RSRP measurement uniformly per cell full bandwidth.

And 3, step 3: according to the RSRP measurement compensation quantities of the serving cell and the adjacent cells, a first RSRP measurement compensation quantity of the serving cell and a second RSRP measurement compensation quantity of the adjacent cells are determined in the RSRP measurement compensation quantities; and respectively compensating the configuration values of the terminal in a connection state and an idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity.

The method is characterized in that the configuration value of the terminal in an idle state is compensated, and the compensation is mainly embodied on cell selection and reselection parameters, specifically:

1) in the case of cell selection, the serving cell minimum access level (Q) _rxlevmin ) After the configuration value needs to reduce the RSRP measurement compensation amount, the compensated minimum access level (Q) of the serving cell is obtained _rxlevmin ) The configuration value is sent to the terminal through broadcasting;

2) for the cell reselection criteria, the following operations are performed according to different scenarios:

(1) serving cell reselection hysteresis (Q) in case of reselection to inter-frequency cells of same frequency/equal priority _hyst ) The configuration value needs to be increased by RSRP measurement compensation quantity, and each adjacent cell reselects individual offset (Q) _offsets,n ) The configuration value needs to reduce the RSRP measurement compensation amount, and the compensated serving cell reselection is delayed (Q) _hyst ) Fitting for mixingSetting and individual offset (Q) for each neighboring cell reselection _offsets,n ) The configuration value is sent to the terminal by broadcasting;

(2) serving cell minimum access level (Q) in case of reselection to a high/low priority inter-frequency cell _rxlevmin ) Configuration values require a reduction in the amount of RSRP measurement compensation, the minimum access level (Q) of each neighbor cell _rxlevmin ) The configuration value needs to reduce RSRP measurement compensation amount and the compensated minimum access level (Q) of the service cell _rxlevmin ) Configuration values and respective neighbor cell minimum access levels (Q) _rxlevmin ) And the configuration value is transmitted to the terminal through broadcasting.

The method for compensating the configuration value of the terminal in the connection state mainly includes the steps of:

1) for the A1 measurement event, the configuration value of the A1 event measurement Threshold (a1-Threshold) is sent to the terminal through reconfiguration after the RSRP measurement compensation quantity needs to be reduced;

2) for the A2 measurement event, the configuration value of the A2 event measurement Threshold (a2-Threshold) is sent to the terminal through reconfiguration after the RSRP measurement compensation quantity needs to be reduced;

3) for the A3 measurement event, the serving cell may select to add an RSRP measurement compensation amount to a cell individual Offset (cellIndividualOffset) or an A3 event Offset (A3-Offset) configuration value and then send the RSRP measurement compensation amount to the terminal through reconfiguration, and the cell individual Offset (cellIndividualOffset) configuration value of each neighboring cell needs to add an RSRP measurement compensation amount and then sends the RSRP measurement compensation amount to the terminal through reconfiguration;

4) for the A4 measurement event, the cell individual offset (cellIndvidualOffset) configuration value of each adjacent cell needs to be added with RSRP measurement compensation amount and then is issued to the terminal through reconfiguration;

5) for an a5 measurement event, a serving cell a5 event-related measurement Threshold (a5-Threshold1) configuration value needs to reduce RSRP measurement compensation amount and then is delivered to the terminal through reconfiguration, and a cell individual offset (cellIndividualOffset) configuration value of each adjacent cell needs to increase RSRP measurement compensation amount and then is delivered to the terminal through reconfiguration;

6) for the a6 measurement event, the serving cell may select to add an RSRP measurement compensation amount to a cell individual Offset (cellIndividualOffset) or an a6 event Offset (a6-Offset) configuration value and then send the RSRP measurement compensation amount to the terminal through reconfiguration, and the cell individual Offset (cellIndividualOffset) configuration value of each neighboring cell needs to add an RSRP measurement compensation amount and then sends the RSRP measurement compensation amount to the terminal through reconfiguration;

7) for the B1 measurement event, the cell individual offset (cellIndividualOffset) configuration value of each neighboring cell needs to be added with RSRP measurement compensation amount and then is delivered to the terminal through reconfiguration;

8) for a B2 measurement event, a serving cell B2 event-related measurement Threshold (B2-Threshold1) configuration value needs to reduce RSRP measurement compensation amount and then is delivered to the terminal through reconfiguration, and a cell individual offset (cellIndividualOffset) configuration value of each neighboring cell needs to increase RSRP measurement compensation amount and then is delivered to the terminal through reconfiguration;

9) and under the condition that the base station receives various event-type and periodic measurement reports, increasing RSRP measurement compensation quantity for the RSRP measurement results of each service cell and adjacent cells, and performing subsequent processing by taking the compensated RSRP measurement results as final RSRP measurement results.

It should be noted that, before the terminal is compensated for the configuration values in the connection state and the idle state, if the RSRP measurement compensation quantity is not matched with the protocol value, the closest protocol value may be taken according to an absolute value, or the closest protocol value may be taken according to an upward or downward principle to be broadcast or re-configured and sent; compensation upper limits can be set for the measurement configuration values in the connection state and the idle state, and large deviation between the RSRP adjustment quantity and the configuration values is prevented; the RSRP compensation mechanism can also be applied to a compensation strategy of the NR system for LTE connection state and idle state measurement configuration, and is also applied to systems of RSRP compensation strategies of other similar measurement mechanisms such as eLTE and 3 GPP; considering the situation that the attribute of a cell may change back and forth between a neighboring cell and a serving cell in a carrier aggregation scenario, the RSRP compensation amount may change accordingly.

In another alternative embodiment, the implementation of the method for compensating for the received power of the reference signal is described in further detail:

step 1: the base station acquires RB map information, measurement bandwidth and subcarrier intervals of CRS power reduction of each service cell and adjacent cells, and supposes that the measurement bandwidth of the service cell is 1.4M, the first RB map information is specifically 'RB 2:10dB and RB6:5 dB', represents that CRS power reduction on 2 RBs is 5dB, the full bandwidth of one adjacent cell is 20M, and the second map information is specifically 'RB 51-RB 100:7 dB', represents that CRS power reduction on 50 RBs is 7 dB.

Step 2: assuming that the full bandwidth of the measurement of the serving cell is 1.4M, the actually effective measurement bandwidth of the adjacent cell is 1.4M, the subcarrier spacing is 15kHz, the actual measurement of the serving cell and the adjacent cell are 6 RBs in the middle, and the RSRP _AdjFactor And (4) determining the RSRP measurement compensation quantity R1 of the serving cell and the RSRP measurement compensation quantity R2 of the adjacent cell according to the following formula in combination with the RB map information of CRS power reduction:

and step 3: according to the RSRP measurement compensation amount of the serving cell and the neighboring cell, the connected state and idle state measurement configuration values are compensated accordingly (assuming that the upper compensation limit is 3dB), specifically:

1) serving cell minimum access level (Q) during cell selection _rxlevmin ) The configuration value needs to be reduced by the RSRP measurement compensation amount (1.05dB, actually the closest Q can be taken according to the absolute value _rxlevmin The protocol value is compensated by 2 dB) and then is transmitted to the terminal through broadcasting;

2. for the cell reselection criteria, the following operations are performed according to different scenarios:

(1) under the condition of same-frequency or equal-priority pilot frequency cell reselection, the serving cell is smallZone reselection hysteresis (Q) _hyst ) The configuration value needs to be increased by RSRP measurement compensation quantity (1.05dB, and the closest Q can be actually taken according to the absolute value _hyst The protocol value is compensated by 1 dB) and then is transmitted to the terminal through broadcasting, and each adjacent cell reselects individual offset (Q) _offsets,n ) The configuration value needs to be reduced by the RSRP measurement compensation amount (2.09dB, the closest Q can be actually taken in absolute value _offsets,n The protocol value is compensated by 2 dB) and then is transmitted to the terminal through broadcasting;

(2) serving cell minimum access level (Q) in case of high or low priority inter-frequency cell reselection _rxlevmin ) The above steps have provided corresponding compensation strategies, each adjacent cell minimum access level (Q) _rxlevmin ) The configuration value needs to be reduced by the RSRP measurement compensation amount (2.09dB, the closest Q can be actually taken in absolute value _rxlevmin The protocol value is compensated by 2 dB) and then is transmitted to the terminal through broadcasting.

1) for the A1 measurement event, the configuration value of the A1 event measurement Threshold (a1-Threshold) needs to reduce the RSRP measurement compensation amount (1.05dB, actually, the closest a1-Threshold protocol value 1dB can be taken as an absolute value for compensation), and then the compensation amount is sent to the terminal through reconfiguration;

2) for the A2 measurement event, the configuration value of the A2 event measurement Threshold (a2-Threshold) needs to reduce the RSRP measurement compensation amount (1.05dB, actually, the closest a1-Threshold protocol value 1dB can be taken as an absolute value for compensation), and then the value is distributed to the terminal through reconfiguration;

3) for an A3 measurement event, the serving cell may select to add an RSRP measurement compensation amount (1.05dB, actually, the closest cellIndividualOffset or A3-Offset protocol value 1dB may be taken as an absolute value to compensate) to a cell individual Offset (A3-Offset) configuration value, and then send the added RSRP measurement compensation amount to the terminal through reconfiguration, and the cell individual Offset (cellIndividualOffset) configuration value of each neighboring cell needs to add an RSRP measurement compensation amount (2.09dB, actually, the closest cellIndividualOffset protocol value 2dB may be taken as an absolute value to compensate) and then send the added RSRP measurement compensation amount to the terminal through reconfiguration;

4) for the A4 measurement event, the cell individual offset (cellIndvidalOffset) configuration value of each adjacent cell needs to be added with RSRP measurement compensation amount (2.09dB, the closest cellIndvidalOffset protocol value 2dB can be actually taken according to the absolute value for compensation), and then is distributed to the terminal through reconfiguration;

5) for an a5 measurement event, a serving cell a5 event-related measurement Threshold (a5-Threshold1) configuration value needs to be reduced by RSRP measurement compensation amount (1.05dB, actually, the closest a5-Threshold1 protocol value 1dB can be taken as an absolute value for compensation) and then sent to the terminal through reconfiguration, and a cell individual offset (cellIndividualOffset) configuration value of each adjacent cell needs to be increased by RSRP measurement compensation amount (2.09dB, actually, the closest cellIndividualOffset protocol value 2dB can be taken as an absolute value for compensation) and then sent to the terminal through reconfiguration;

6) for the measurement events of A6, B1 and B2, since the embodiment does not relate to carrier aggregation and inter-system measurement, the compensation problem of the measurement events of A6, B1 and B2 does not need to be considered;

7) when the base station receives various event type and periodic type measurement reports, the RSRP measurement compensation quantity (1.05dB) needs to be added to the RSRP measurement result of the serving cell to serve as a final RSRP measurement result for subsequent processing, and the RSRP measurement compensation quantity (2.09dB) needs to be added to the RSRP measurement result of the adjacent cell to serve as a final RSRP measurement result for subsequent processing.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method according to the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

In this embodiment, a compensation apparatus for reference signal received power is also provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description of the apparatus is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 4 is a block diagram of a compensation apparatus for reference signal received power according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes:

an obtaining module 42, configured to obtain resource block RB map information, measurement bandwidth, and subcarrier spacing of multiple target cells after performing power reduction operation on cell reference signals CRS of the multiple target cells;

a compensation module 44, configured to determine reference signal received power, RSRP, measurement compensation quantities respectively corresponding to the multiple target cells according to the RB map information, the measurement bandwidth, and the subcarrier spacing, so as to compensate, according to the RSRP measurement compensation quantities, RSRP measurement values determined according to the CRS after power reduction operation.

Through the modules, resource block RB map information, measurement bandwidth and subcarrier intervals of a plurality of target cells are obtained after power reduction operation is carried out on cell reference signals CRSs of the target cells; according to the RB map information, the measurement bandwidth and the subcarrier spacing, Reference Signal Received Power (RSRP) measurement compensation quantities corresponding to the target cells respectively are determined, RSRP measurement values determined according to the CRS after power reduction operation are compensated according to the RSRP measurement compensation quantities, namely the RSRP measurement values determined according to the CRS after power reduction operation are compensated through the RSRP measurement compensation quantities, by adopting the technology, the serious problems of ping-pong switching, ping-pong reselection, line drop, network disconnection and the like caused by the fact that the RSRP measurement results of the Reference Signal Received Power (RSRP) of the target cells are low for the CRS after power reduction operation in the related technology are solved, and the terminal is guaranteed to preferentially reside in the cell with better actual coverage.

It should be noted that the resource block RB map information after performing the power down operation on the cell reference signals CRS of the multiple target cells may be obtained in multiple ways such as X2 linking, network management query, manual configuration, and the like, which is not limited in the embodiment of the present invention, and the resource block RB map information specifically includes "RB 1:0dB, RB2:0dB, … … RB50:0dB, RB51:3dB, … … RB99:3dB, and RB100:3 dB", where RBX: Q dB represents that the power of the CRS of the target cell on the X-th RB is reduced by Q dB. Since the RB map information only needs to express specific RB information corresponding to clear CRS power reduction, it is also possible to transmit only RB map information with reduced power, for example: "RB 51:3dB, … … RB99:3dB, RB100:3 dB", or "RB 51-RB 100:3 dB".

In an exemplary embodiment, the apparatus further includes: a determining module, configured to determine, for any cell in the multiple target cells, first RB map information, a first measurement bandwidth, and a first subcarrier spacing corresponding to the any cell from the RB map information, the measurement bandwidth, and the subcarrier spacing; a determining module, further configured to determine, according to the first RB map information, the first measurement bandwidth and the first subcarrier spacing, that the number of CRS RBs of which power is not reduced in the first measurement bandwidth of any cell is m, the number of CRS RBs of which power is reduced by Q1 dB is n1, the number of CRS RBs of which power is reduced by Q2 dB is n2, … …, and the number of CRS RBs of which power is reduced by Qx dB is nx, where x is an integer greater than 2, m, n1, n2, … …, nx is a positive number, Q1, Q2, … …, and Qx is a positive number; a determining module, further configured to determine the RSRP measurement compensation amount according to the m, Q1, n1, Q2, n2, … …, Qx, and nx.

In other words, the first RB pattern information, the first measurement bandwidth and the first subcarrier spacing corresponding to any one of the plurality of target cells are determined; determining the total number of RBs in a first measurement bandwidth according to the first measurement bandwidth and the first subcarrier interval, determining the number of CRS RBs without power reduction and the number of CRS RBs with reduced Qx dB in the first measurement bandwidth according to the first RB map information, specifically, determining the number of CRS RBs with reduced power Q1 dB as n1, the number of CRS RBs with reduced power Q2 dB as n2 and … …, and the number of CRS RBs with reduced power Qx dB as nx, wherein X is an integer greater than 2, for example, when X is 3, the number of CRS RBs with reduced power Q1 dB as n1, the number of CRS RBs with reduced power Q2 dB as n2, and the number of CRS RBs with reduced power Q3 dB as n 3; when X is 4, the number of CRS RBs of the power reducing Q1 dB is n1, the number of CRS RBs of the power reducing Q2 dB is n2, the number of CRS RBs of the power reducing Q3 dB is n3, and the number of CRS RBs of the power reducing Q4 dB is n 4.

Further, the obtaining module is configured to obtain a transmission power P corresponding to a CRS signal of the any cell before performing the power reduction operation; a determining module configured to determine the RSRP measurement compensation amount R according to the following formula:

it should be noted that the boundary of the measurement bandwidth may only contain a part of the whole RBs, and the number n1, n2 and nx of RBs of the CRS for measuring the unreduced power in the bandwidth in the above formula may be a decimal number, such as 1.5. In addition, the terminal may know the serving cell bandwidth size explicitly, but the terminal may not be limited by the measurement bandwidth for the serving cell RSRP measurement, for which case the terminal may calculate the measurement bandwidth in the serving cell RSRP measurement uniformly per cell full bandwidth.

Further, the obtaining module is further configured to obtain an RSRP adjustment factor RSRP of the any cell _AdjFactor (ii) a A determining module, further configured to determine the RSRP measurement compensation quantity R according to the following formula:

the obtained calculation result may have an error with a theoretical value obtained in an actual situation, so that an adjusting factor RSRP can be added in the formula _AdjFactor Adjusting the factor RSRP _AdjFactor Is in the range of 0-1, and the RSRP is adjusted by increasing the adjusting factor _AdjFactor Correspondingly adjusting the formula, wherein the adjusted RSRP measurement compensation quantity calculation formula is as follows:

Further, the acquiring module is further configured to acquire a first RSRP measurement compensation quantity of a serving cell and a second RSRP measurement compensation quantity of an adjacent cell from the RSRP measurement compensation quantities; and the compensation module is further used for respectively compensating the configuration values of the terminal in a connection state and an idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity.

That is, RSRP measurement complementation of serving cell and neighboring cellsThe compensation amount is determined by the formula, after the first RSRP measurement compensation amount of the serving cell and the second RSRP measurement compensation amount corresponding to the adjacent cell are determined, the configuration values of the terminal in the connection state and the idle state are respectively compensated, and the configuration values of the terminal in the connection state mainly comprise: minimum access level Q of serving cell and adjacent cell _rxlevmin Configuration value, serving cell reselection hysteresis Q _hyst Configuration value, adjacent cell reselection individual offset Q _offsets,n And configuring the value.

Further, the compensation module is further configured to compensate the configuration value of the terminal in the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, and compensate the configuration value in the idle state, which is mainly embodied in that parameters corresponding to cell selection and cell reselection are compensated, and specifically, the following are implemented:

3) reducing the serving cell minimum access level configuration value by the first RSRP measurement compensation amount and reducing all neighboring cell minimum access level configuration values by the second RSRP measurement compensation amount under the condition of high or low priority inter-frequency cell reselection; and sending the reduced minimum access level configuration value of the service cell and the reduced minimum access level configuration values of all the adjacent cells to the terminal through broadcasting.

That is, the compensation of the configuration value for the idle state is mainly performed by the minimum access level Q to the serving cell and the neighbor cell _rxlevmin Configuration value, serving cell reselection hysteresis Q _hyst Configuration value, adjacent cell reselection individual offset Q _offsets,n Compensating the configuration value, and respectively carrying out minimum access level Q on the service cell and the adjacent cell under different situations _rxlevmin Configuration value, serving cell reselection hysteresis Q _hyst Configuration value, adjacent cell reselection individual offset Q _offsets,n And compensating at least one of the configuration values, broadcasting the compensated configuration value to the terminal, and compensating the configuration value in an idle state to prevent the terminal from having the problems of ping-pong reselection, offline and the like, thereby ensuring that the terminal preferentially resides in a cell with better actual coverage.

In another exemplary embodiment, the compensating module is further configured to compensate the configuration value of the terminal in the connected state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity, and includes:

1) reducing the A1 event measurement threshold configuration value by the first RSRP measurement compensation amount;

3) increasing the individual offset configuration value of the serving cell or the a3 event offset configuration value by the first RSRP measurement compensation amount and the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

6) increasing the cell individual offset configuration value of the serving cell or the a6 event offset configuration value by the first RSRP measurement compensation amount, and the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

8) and reducing the B2 event measurement threshold1 configuration value of the serving cell by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all the adjacent cells by the second RSRP measurement compensation amount.

An embodiment of the present invention further provides a storage medium having a computer program stored therein, wherein the computer program is configured to perform the steps in any of the method embodiments described above when executed.

Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:

s12, obtaining resource block RB map information, measurement bandwidth and subcarrier spacing of a plurality of target cells after power reduction operation is carried out on cell reference signals CRSs of the target cells;

and S14, determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing, and compensating the RSRP measurement value determined according to the CRS after the power reduction operation according to the RSRP measurement compensation quantities.

Optionally, in this embodiment, the storage medium may include but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present invention further provide an electronic device, comprising a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.

Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:

s22, obtaining resource block RB map information, measurement bandwidth and subcarrier spacing of a plurality of target cells after power reduction operation is carried out on cell reference signals CRSs of the target cells;

and S24, determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing, and compensating the RSRP measurement value determined according to the CRS after the power reduction operation according to the RSRP measurement compensation quantities.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for compensating for received power of a reference signal, comprising:

acquiring resource block RB map information, measurement bandwidth and subcarrier intervals of a plurality of target cells after power reduction operation is carried out on cell reference signals CRSs of the target cells;

and determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing, so as to compensate the RSRP measurement value determined according to the CRS after power reduction operation according to the RSRP measurement compensation quantities.

2. The method of claim 1, wherein determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing comprises:

for any cell in the target cells, determining first RB map information, a first measurement bandwidth and a first subcarrier interval corresponding to the cell from the RB map information, the measurement bandwidth and the subcarrier interval;

determining that the number of CRS RBs of the power not reduced in the first measurement bandwidth of any cell is m, the number of CRS RBs of the power reduced Q1 dB is n1, the number of CRS RBs of the power reduced Q2 dB is n2, … …, and the number of CRS RBs of the power reduced Qx dB is nx according to the first RB map information, the first measurement bandwidth and the first subcarrier spacing, wherein x is an integer greater than 2, m, n1, n2, … …, nx is a positive number, Q1, Q2, … …, and Qx is a positive number;

and determining the RSRP measurement compensation quantity according to the m, Q1, n1, Q2, n2, … …, Qx and nx.

3. The method of claim 2, wherein determining the RSRP measurement offset from the m, Q1, n1, Q2, n2, … …, Qx, and nx comprises:

acquiring the transmission power P corresponding to a CRS signal of any cell before power reduction operation;

determining the RSRP measurement compensation quantity R according to the following formula:

4. the method of claim 2, wherein determining the RSRP measurement offset from the m, Q1, n1, Q2, n2, … …, Qx, and nx comprises:

obtaining an adjusting factor RSRP of the RSRP of any cell _AdjFactor ；

5. The method of claim 1, wherein Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells are determined according to the RB map information, the measurement bandwidth and the subcarrier spacing, and after the RSRP measurement compensation quantities are compensated for the RSRP measurement values determined according to the CRS after the power reduction operation, the method further comprises:

acquiring a first RSRP measurement compensation amount of a serving cell and a second RSRP measurement compensation amount of an adjacent cell from the RSRP measurement compensation amounts;

and respectively compensating the configuration values of the terminal in a connection state and an idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity.

6. The method of claim 5, wherein compensating the configuration values of the terminal in the connected state and the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity respectively comprises:

in the process of cell selection, reducing the minimum access level configuration value of the service cell by the first RSRP measurement compensation amount;

and transmitting the reduced minimum access level configuration value of the serving cell to the terminal through broadcasting.

7. The method of claim 5, wherein compensating the configuration values of the terminal in the connected state and the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity respectively comprises:

under the condition of reselecting the pilot frequency cells with the same frequency or the same priority, increasing the serving cell reselection hysteresis configuration value by the first RSRP measurement compensation amount, and decreasing the second RSRP measurement compensation amount by all the reselected individual offset configuration values of the adjacent cells;

and sending the increased serving cell reselection hysteresis configuration value and the decreased all adjacent cell reselection individual offset configuration values to the terminal through broadcasting.

8. The method of claim 5, wherein compensating the configuration values of the terminal in the connected state and the idle state according to the first RSRP measurement compensation quantity and the second RSRP measurement compensation quantity respectively comprises:

reducing the serving cell minimum access level configuration value by the first RSRP measurement compensation amount and reducing all neighboring cell minimum access level configuration values by the second RSRP measurement compensation amount under the condition of high or low priority inter-frequency cell reselection;

and sending the reduced minimum access level configuration value of the service cell and the reduced minimum access level configuration values of all the adjacent cells to the terminal through broadcasting.

9. The method of claim 5, further comprising at least one of:

reducing the A1 event measurement threshold configuration value by the first RSRP measurement compensation amount;

reducing the a2 event measurement threshold configuration value by the first RSRP measurement offset;

increasing the individual offset configuration value of the serving cell or the a3 event offset configuration value by the first RSRP measurement compensation amount and the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

increasing the cell individual offset configuration values of all the adjacent cells corresponding to the A4 measurement event by the second RSRP measurement compensation amount;

decreasing the a5 event measurement threshold1 configuration value of the serving cell by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount;

increasing the cell individual offset configuration value of the serving cell or the a6 event offset configuration value by the first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all neighboring cells by the second RSRP measurement compensation amount.

10. The method of claim 5, further comprising at least one of:

increasing cell individual offsets of all neighboring cells in the B1 event by the second RSRP measurement offset;

reducing the B2 event measurement threshold1 configuration value of the serving cell by a first RSRP measurement compensation amount, and increasing the cell individual offset configuration values of all the adjacent cells by the second RSRP measurement compensation amount.

11. An apparatus for compensating for a reference signal received power, comprising:

an obtaining module, configured to obtain resource block RB map information, measurement bandwidth, and subcarrier spacing of multiple target cells after performing power reduction operation on cell reference signals CRS of the multiple target cells;

and the compensation module is used for determining Reference Signal Received Power (RSRP) measurement compensation quantities respectively corresponding to the target cells according to the RB map information, the measurement bandwidth and the subcarrier spacing, so as to compensate RSRP measurement values determined according to the CRS after the power reduction operation according to the RSRP measurement compensation quantities.

12. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the method of any one of claims 1 to 10 when executed.