CN102647767B

CN102647767B - Method, device and terminal device for reselecting and measuring cell

Info

Publication number: CN102647767B
Application number: CN201210081957.4A
Authority: CN
Inventors: 党淑君
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2014-04-30
Anticipated expiration: 2032-03-23
Also published as: CN102647767A

Abstract

The invention discloses a method, a device and a terminal device for reselecting and measuring a cell. The method comprises the following steps: firstly, confirming an effective measuring parameter for reselecting and measuring the cell, wherein the effective measuring parameter is used for indicating the information of time period required for the condition that the result of the next reselecting and measuring of the cell meets a switching or reselecting condition; confirming the information of triggering time of the next reselecting and measuring of the cell according to the corresponding effective measuring parameter; and triggering an operation of reselecting and measuring the cell on the basis of the information of triggering time. According to the embodiment of the invention, by monitoring the effective measuring parameter for reselecting and measuring the cell, the triggering time for reselecting and measuring the cell is adjusted, so that the possibility of performing an invalid operation for reselecting and measuring the cell by a terminal is reduced to a certain extent, the consumption of invalid electric energy of the terminal is effectively reduced, the electric energy of the terminal is saved and the stand-by time of the terminal is prolonged.

Description

Cell reselection measurement method and device and terminal equipment

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a terminal device for cell reselection measurement.

Background

In a wireless communication system, in order to improve the communication quality of a terminal and ensure that the terminal can perform a communication service based on a cell with the best signal quality as much as possible, a cell most suitable for the terminal to communicate with is generally selected as a serving cell or a camping cell of the terminal by performing a corresponding cell reselection process.

Taking the cellular network system as an example, during the moving process, the terminal may select the cell with the best signal as the current resident cell or the handover target cell, so as to obtain a better communication effect during the subsequent communication process. In the cell reselection process, the processing process of selecting the cell with the best signal is realized by triggering cell reselection measurement, specifically, the signal strength of an adjacent cell and the signal strength of a current service or resident cell are obtained through cell reselection measurement operation measurement, and a cell with good signal quality is selected between the adjacent cell and the current service or resident cell according to the comparison between the measured signal strength of the adjacent cell and the signal strength of the current service or resident cell.

Currently, the processing procedure of the corresponding cell reselection measurement is generally triggered as follows:

the terminal calculates a cell reselection reference value S of a current serving cell by every DRX (discontinuous reception) cycle wake-up_ServingCellCorresponding S_ServingCell(i.e., Srxlev) is calculated as follows:

Srxlev=Q_rxlevmeas–(Q_rxlevmin+Q_{rxlevminoffset})–Pcompensation；

wherein Q is_rxlevmeasFor measured current serving cell received power, Q_rxlevminFor minimum received power, Q, of the serving cell_{rxlevminoffset}And the minimum receiving power compensation value of the service cell is Pcomp transmission power compensation value.

Is calculated to obtain S_ServingCellThen, the S is added_ServingCellAnd cell reselection start threshold value S_intrasearchComparison, if S_ServingCell<=S_intrasearchA cell reselection measurement procedure is triggered to measure the same-frequency neighbor cells. Will S_ServingCellStarting threshold value Snon with cell reselection_intrasearchComparison, if S_ServingCell<=Snon_intrasearchTriggering the inter-frequency or inter-system cell reselection measurement process to measure the inter-frequency or inter-system neighbor cells.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:

through the prior art, the terminal can be ensured to access the network and the communication performance, such as call completing rate, paging success rate, conversation effect and the like. However, for a weak coverage area or an area without coverage in the communication network, the corresponding S is caused to exist for a longer period of time (before the terminal leaves the weak coverage area or the area without coverage) due to the poor quality of the communication signal_ServingCell<=S_intrasearchOr S_ServingCell<=Snon_intrasearchIf the condition is satisfied, that is, the triggering condition of the co-frequency cell reselection measurement or the inter-frequency/inter-system cell reselection measurement is satisfied, at this time, the terminal performs the corresponding co-frequency cell reselection measurement operation or the inter-frequency/inter-system cell reselection measurement operation, but the terminal cannot find the co-frequency neighboring cell or the inter-frequency/inter-system neighboring cell suitable for handover or reselection, that is, the corresponding reselection measurement does not cause substantial handover or reselection of the terminal.

As can be seen from the above description, in a weak coverage area or an area without coverage, although the corresponding cell reselection measurement operation process cannot select a better camping or serving cell for the terminal, the corresponding cell reselection measurement process is still frequently triggered to be executed, which causes the terminal to repeatedly execute an invalid cell reselection measurement operation, which inevitably increases invalid power consumption of the terminal, thereby reducing the standby time of the terminal.

Disclosure of Invention

The invention aims to provide a cell reselection measurement method, a cell reselection measurement device and a terminal device, which can reduce the possibility that a terminal performs invalid cell reselection measurement operation, thereby effectively saving the power consumption of the terminal.

The purpose of the invention is realized by the following technical scheme:

a method of cell reselection measurement, comprising:

determining an effectiveness measurement parameter of cell reselection measurement, wherein the effectiveness measurement parameter is used for indicating a short message with a time length required by a subsequent cell reselection measurement result meeting a handover or reselection condition;

determining triggering time information of next cell reselection measurement according to the effectiveness metric parameter, and triggering cell reselection measurement operation based on the triggering time information;

the step of determining a validity metric parameter for cell reselection measurements comprises:

and measuring the signal quality of the adjacent cell, and determining the effectiveness measurement parameter according to the obtained signal quality measurement result.

A method of cell reselection measurement, comprising:

and measuring the signal quality of the adjacent cell and the position change information of the terminal, and respectively determining the validity measurement parameters according to the obtained signal quality measurement result and the position change information measurement result of the terminal.

An apparatus of cell reselection measurement, comprising:

the cell reselection measuring device comprises a validity measurement parameter determining unit, a switching or reselection condition determining unit and a judging unit, wherein the validity measurement parameter determining unit is used for determining a validity measurement parameter of cell reselection measurement, and the validity measurement parameter is used for indicating a short message of a time length required by a subsequent cell reselection measurement result to meet a switching or reselection condition;

a measurement trigger time determining unit, configured to determine trigger time information of cell reselection measurement according to the validity metric parameter determined by the validity metric parameter determining unit;

a cell reselection measurement triggering unit, configured to trigger a cell reselection measurement operation based on the trigger time information determined by the measurement trigger time determining unit;

the validity metric parameter determination unit includes:

and the signal quality measuring unit is used for measuring the signal quality of the adjacent cell and determining the effectiveness measurement parameter according to the obtained signal quality measuring result.

An apparatus of cell reselection measurement, comprising:

the validity metric parameter determination unit includes:

a signal quality measuring unit, configured to measure signal quality of a neighboring cell, and determine the validity measurement parameter according to an obtained signal quality measurement result;

and,

and the position change information measuring unit is used for measuring the position change information of the terminal and determining the effectiveness measurement parameter according to the obtained position change information measuring result.

A terminal device comprises the cell reselection measurement device.

It can be seen from the foregoing technical solutions provided by the present invention that, in the technical solution for cell reselection measurement provided in the embodiments of the present invention, the trigger time for cell reselection measurement is adjusted by monitoring the validity measurement parameter for cell reselection measurement, so that the possibility that the terminal performs an invalid cell reselection measurement operation can be reduced to a certain extent, and further, the consumption of invalid electrical energy of the terminal can be effectively reduced, the electrical energy of the terminal is saved, and the standby time of the terminal is prolonged without affecting the access and communication quality of the terminal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic process diagram of a method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a specific implementation process of a first embodiment of the present invention;

fig. 3 is a schematic diagram of a specific implementation process of a second embodiment according to the present invention;

fig. 4 is a schematic diagram of a specific implementation process of a third embodiment according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a specific implementation process of a fourth embodiment according to the present invention;

fig. 6A is a first schematic diagram illustrating a fifth specific implementation process according to an embodiment of the present invention;

fig. 6B is a schematic diagram of a specific implementation process of a fifth embodiment according to the present invention;

fig. 6C is a third schematic diagram of a specific implementation process of a fifth embodiment according to the present invention;

FIG. 7 is a first schematic structural diagram of an apparatus according to an embodiment of the present invention;

FIG. 8 is a second schematic structural diagram of an apparatus according to an embodiment of the present invention;

FIG. 9 is a third schematic structural diagram of an apparatus according to an embodiment of the present invention;

FIG. 10 is a fourth schematic structural diagram of an apparatus according to an embodiment of the present invention;

FIG. 11 is a fifth schematic structural diagram of an apparatus according to an embodiment of the present invention;

FIG. 12 is a sixth schematic structural view of an apparatus according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention introduces the concept of the validity measurement parameter of the cell reselection measurement, and the validity measurement parameter can indicate the short message with long time required by the following cell reselection measurement result meeting the reselection or switching condition. Therefore, based on the validity measurement parameter, the triggering frequency of the cell reselection measurement can be controlled, namely the interval time of two adjacent cell reselection measurement operations is reasonably controlled, so that the invalid cell reselection measurement operation is prevented from being repeatedly executed, and the power consumption of the terminal is saved.

For the sake of understanding, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

A specific implementation process of the method for cell reselection measurement provided by the embodiment of the present invention is shown in fig. 1, and may include the following steps:

step 11, determining an effectiveness measurement parameter of cell reselection measurement;

the validity metric parameter can be used to determine the short message of the time length required by the subsequent cell reselection measurement result meeting the reselection or handover condition, that is, the validity metric parameter can predict when to execute the next cell reselection measurement operation so as to obtain the cell reselection measurement result meeting the reselection or handover condition;

that is, since the validity metric parameter indicates the validity of the cell reselection measurement, it can be predicted by the validity metric parameter whether the next cell reselection measurement result (i.e. the cell reselection measurement result obtained by the next cell reselection measurement) needs a longer time or a shorter time if meeting the reselection or handover requirement, so as to determine at what time to perform the next cell reselection measurement operation according to the validity metric parameter, so as to ensure the validity of the cell reselection measurement to some extent, so as to avoid the terminal from performing an invalid cell reselection measurement operation as much as possible;

whether the cell reselection measurement operation is valid or not may generally be determined by both the signal quality of the neighbor cell, in which the terminal is located, and the signal quality of the serving cell, for which neighbor cell signal quality may be measured, and determining a validity metric parameter for a corresponding cell reselection measurement based on the obtained signal quality measurement, i.e. indicating the validity of the cell reselection measurement based on the validity metric parameter of the signal quality measurement result, if the signal quality measurement result of a certain adjacent cell is better, the change trend of the effectiveness of the cell reselection measurement is shown to be more effective, this way, it is highly likely that the results of subsequent cell reselection detections that are about to be performed will be in compliance with reselection or handover conditions, whereas, if the signal quality measurements are poor, a trend of change indicating the validity of the cell reselection measurement is towards invalidity, thus indicating that the subsequent cell reselection detection result to be performed will most likely fail to satisfy the reselection or handover condition;

or, the validity measure parameter of the corresponding cell reselection measurement may be determined according to the location change information of the terminal, because even if the terminal is currently located in a serving cell with poor service quality, the location change of the terminal determines that the terminal may move to a neighboring cell with better service quality in the future time, so the location change information of the terminal may also be measured, and the validity measure parameter of the corresponding cell reselection measurement is determined according to the obtained location change information measurement result, that is, the validity measure parameter is determined based on the location change information measurement result to indicate a validity change trend of the cell reselection measurement, if the location change information measurement result is a large location change (for example, the moving speed is fast or the number of times of handover or cell reselection occurs in a unit time is large), the validity change trend of the cell reselection measurement is indicated as being valid, thus, it indicates that the result of the subsequent cell reselection detection to be performed will most likely meet the reselection or handover condition, whereas if the result of the position change information measurement is that the position change is not large (at this time, the terminal is still in the communication area with poor signal quality), it indicates that the trend of the validity change of the cell reselection measurement tends to be invalid, and thus, it indicates that the result of the subsequent cell reselection detection to be performed will most likely fail to meet the reselection or handover condition;

or, respectively determining validity metric parameters of corresponding cell reselection measurements according to the signal quality measurement result and the location change information of the terminal, that is: and measuring the signal quality of the adjacent cell and the position change information of the terminal, determining one validity measurement parameter according to the obtained signal quality measurement result, and determining the other validity measurement parameter according to the obtained position change information measurement result of the terminal, so that the triggering time information of cell reselection measurement can be determined according to the two validity measurement parameters in the subsequent process.

The signal quality measurement result may be, but is not limited to, an RSRP (reference signal received power) or RSRQ (reference signal received quality) measurement value of a neighboring cell; the location change information measurement result may be, but is not limited to, a measurement result of a location change speed of the terminal, such as a moving speed of the terminal, or the corresponding location change information measurement result may also be determined according to the number of times that the terminal performs handover or cell reselection within a unit time.

Obviously, for implementing the embodiment of the present invention, those skilled in the art know that any other parameter capable of indicating that the cell reselection measurement result meets the short message of the time length required for reselection or handover condition may also be adopted as the validity metric parameter of the corresponding cell reselection measurement.

Step 12, determining triggering time information of cell reselection measurement according to the obtained validity measurement parameters;

because the corresponding effectiveness measurement parameters indicate the effectiveness variation trend of the cell reselection measurement, the short message with the time length required by the subsequent cell reselection measurement result meeting the reselection or switching condition can be determined according to the effectiveness measurement parameters; specifically, if it is determined that the trend of the change in the validity of the cell reselection measurement is approaching to validity according to the obtained validity metric parameter, it indicates that the result of the subsequent cell reselection detection to be performed will most likely satisfy the reselection or handover condition, at this time, a smaller time interval may be used as the time interval between the current measurement and the next measurement, otherwise, if it is determined that the trend of the change in the validity of the cell reselection measurement is approaching to invalidity according to the obtained validity metric parameter, it indicates that the result of the subsequent cell reselection detection to be performed will most likely fail to satisfy the reselection or handover condition, at this time, a larger time interval may be used as the time interval between the current measurement and the next measurement;

in other words, if the corresponding validity metric parameter reveals that the time required for the cell reselection measurement result to meet the reselection or handover condition is long, the trigger time for the next cell reselection measurement may be delayed to avoid the terminal frequently performing invalid cell reselection measurement, whereas if the validity metric parameter reveals that the time required for the cell reselection measurement result to meet the reselection or handover condition is short, the next cell reselection measurement may be triggered at normal time, or the next cell reselection measurement may be triggered a little time ahead;

according to the difference of the specifically adopted validity metric parameters, the corresponding processing mode for determining the triggering time information of the cell reselection measurement according to the validity metric parameters may include any one of the following implementation modes:

the first method is as follows: determining an effectiveness metric parameter from a signal quality measurement

Judging whether the effectiveness measurement parameter determined according to the obtained signal quality measurement result is greater than a predetermined signal quality value (the corresponding predetermined signal quality value is used for indicating a predetermined condition of good and bad signal quality of the adjacent cell, and the effectiveness measurement parameter greater than the predetermined signal quality value means that the signal quality of the adjacent cell is superior to the predetermined condition), if so, indicating that the signal quality of the adjacent cell is likely to meet the requirements of reselection or switching in a short time, at the moment, reducing the time interval between the current measurement and the next measurement to ensure that the terminal can be timely switched or resided in the corresponding adjacent cell to obtain better service quality, otherwise, indicating that the signal quality of the adjacent cell is likely not to meet the requirements of reselection or switching in a long time, at the moment, increasing the time interval between the current measurement and the next measurement, to avoid the terminal performing corresponding invalid cell reselection measurements; wherein the validity metric parameters determined from the obtained signal quality measurements may include, but are not limited to: taking the signal quality measurement result of the adjacent cell as a corresponding validity measurement parameter, or taking a difference value obtained by subtracting the signal quality measurement result of the serving cell from the signal quality measurement result of the adjacent cell (the signal quality measurement result of the serving cell can be a signal quality value of the serving cell obtained by measurement, or can be the sum of the signal quality value of the serving cell obtained by measurement and a hysteresis value) as a corresponding validity measurement parameter, wherein the obtained difference value is smaller than zero;

the second method comprises the following steps: determining an effectiveness metric parameter from a position change information measurement

Judging whether the effectiveness measurement parameter determined according to the position change information measurement result is larger than a preset position change value or not, if so, indicating that the terminal can move to a new cell with better service quality in a very short time, at the moment, reducing the time interval between the current measurement and the next measurement so as to facilitate the terminal to switch or reside in the cell with better service quality in time, otherwise, indicating that the terminal is in the current cell in a longer time, and at the moment, improving the time interval between the current measurement and the next measurement so as to avoid the terminal to execute corresponding invalid cell reselection measurement; specifically, the position change information measurement result may be used as a corresponding validity measurement parameter, and if the obtained position change information measurement result is the moving speed of the terminal or the number of times of handover or cell reselection occurring in the terminal unit time, the moving speed of the corresponding terminal or the number of times of handover or cell reselection occurring in the terminal unit time may be directly used as the corresponding validity measurement parameter;

the third method comprises the following steps: combined use of determining validity metric parameters from signal quality measurements and determining validity metric parameters from location change information measurements

Judging whether the effectiveness measurement parameter determined according to the obtained signal quality measurement result is greater than a preset signal quality value, if so, reducing the time interval between the current measurement and the next measurement, otherwise, judging whether the effectiveness measurement parameter determined according to the position change information measurement result is greater than a preset position change value, if so, reducing the time interval between the current measurement and the next measurement, otherwise, improving the time interval between the current measurement and the next measurement; or judging whether the effectiveness measurement parameter determined according to the position change information measurement result is larger than a preset position change value or not, if so, reducing the time interval between the current measurement and the next measurement, otherwise, judging whether the effectiveness measurement parameter determined according to the obtained signal quality measurement result is larger than a preset signal quality value or not, if so, reducing the time interval between the current measurement and the next measurement, otherwise, improving the time interval between the current measurement and the next measurement.

In this step, the corresponding predetermined signal quality values may be set to include one or more values, and if there are a plurality of predetermined signal quality values, k values are assumed, and the k predetermined signal quality values are, in order from large to small: the first, second, … …, and k-th predetermined signal quality values, k being a positive integer greater than 1, then the corresponding process of determining time-to-trigger information for cell reselection measurements may include:

determining a relationship between an effectiveness metric parameter determined from the signal quality measurements and k predetermined signal quality values;

if the effectiveness measurement parameter determined according to the signal quality measurement result is larger than the first preset signal quality value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the first preset signal quality value, wherein the time interval value is the minimum time interval in all the preset time intervals;

if the effectiveness measurement parameter determined according to the signal quality measurement result is greater than the m + 1-th preset signal quality value and less than the m-th preset signal quality value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the m + 1-th preset signal quality value, thereby dividing the current measurement and the next measurement into different levels according to different signal quality measurement results, and respectively setting different time intervals between the current measurement and the next measurement based on the signal quality measurement results of the different levels; wherein m is a natural number smaller than k, and the time interval corresponding to the m +1 th preset value is larger than the time interval corresponding to the m preset value;

if the validity measure parameter determined from the signal quality measurement is less than the kth predetermined signal quality value, the time interval between this measurement and the next measurement is set to a preset maximum time interval.

Or,

in this step, the corresponding predetermined position variation values may be set to include one or more, and if the predetermined position variation values include a plurality of, assuming that there are k, the k predetermined position variation values sequentially become, from large to small: the first predetermined location change value, the second predetermined location change value, … …, and a kth predetermined location change value, where k is a positive integer greater than 1, the processing procedure for determining the triggering time information of the cell reselection measurement may include:

judging the relationship between the effectiveness measurement parameter determined according to the position change information measurement result and k preset position change values;

if the effectiveness measurement parameter determined according to the position change information measurement result is larger than the first preset position change value, setting the time interval between the current measurement and the next measurement as a preset time interval corresponding to the first preset position change value, wherein the time interval value is the minimum time interval in all preset time intervals;

if the effectiveness measurement parameter determined according to the position change information measurement result is larger than the m +1 th preset position change value and smaller than the m preset position change value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the m +1 th preset position change value, thereby dividing the current measurement and the next measurement into different levels according to the difference of the position change information measurement results, and respectively setting different time intervals between the current measurement and the next measurement based on the position change information measurement results of the different levels; wherein m is a natural number smaller than k, and the time interval corresponding to the m +1 th preset value is larger than the time interval corresponding to the m preset value;

and if the effectiveness measurement parameter determined according to the position change information measurement result is smaller than the k-th preset position change value, setting the time interval between the current measurement and the next measurement as the preset maximum time interval.

By setting the plurality of predetermined signal quality values or the plurality of predetermined position change values, fine control over a time interval between the current measurement and the next measurement can be improved, so that the possibility that the terminal performs invalid cell reselection measurement can be further reduced, and the user experience of the terminal can be guaranteed as much as possible.

And step 13, triggering the cell reselection measurement operation based on the determined trigger time information.

The embodiments of the present invention can be applied to, but not limited to, cellular wireless communication systems such as GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), CDMA (Code Division Multiple Access) network, and LTE (Long Term Evolution) System.

Further, the embodiment of the present invention may be specifically configured to trigger a common-frequency cell reselection measurement process, or may also be configured to trigger an inter-frequency cell reselection measurement process, or may also be configured to trigger a common-frequency cell reselection measurement process and an inter-frequency cell reselection measurement process.

As can be seen from the above description, the implementation of the embodiment of the present invention fully considers the fact that the user movement is a macro slow-changing process, so that the number of times that the terminal performs the invalid cell reselection measurement operation can be reduced as much as possible without affecting the user experience, thereby reducing the power consumption of the terminal and prolonging the standby time of the terminal.

The technical solutions provided by the embodiments of the present invention will be described below with reference to specific application embodiments.

Example one

In this embodiment, the validity metric parameter of the cell reselection measurement may be a short message indicating that the radio signal strength of the neighboring cell is measured and determined to satisfy the degree of cell reselection or handover in the current cell reselection measurement process, that is, a short message of a long time required for determining that a subsequent cell reselection measurement result meets the handover or reselection condition is determined by the degree that the radio signal strength of the neighboring cell satisfies the degree of cell reselection or handover; specifically, in this embodiment, the magnitude of a difference (which is a value less than zero) obtained by subtracting the RSRP or RSRQ measurement value of the serving cell from the RSRP/RSRQ measurement value of the neighboring cell and the sum of the hysteresis value (typically 3 dB) may be used as the validity metric parameter for cell reselection measurement.

Specifically, taking the application of the embodiment of the present invention to an LTE system as an example, a specific implementation process of a corresponding method for cell reselection measurement is shown in fig. 2, and may include the following steps:

step 21, judging whether the cell reselection measurement result is valid, if so, executing step 22, otherwise, executing step 23;

the effective cell reselection measurement means that: in the cell reselection measurement process, the radio signal strength of the neighboring cell is measured and determined to meet the requirements of cell reselection or handover, for example, the sum of the RSRP or RSRQ measurement value of the serving cell and the hysteresis value (usually 3 dB) is smaller than the RSRP/RSRQ measurement value of the neighboring cell;

step 22, a cell switching operation or a cell reselection operation is performed.

Step 23, when the cell reselection measurement result is invalid, determining whether the validity measurement parameter (specifically, the validity measurement parameter corresponds to a specific validity measurement parameter value) of the cell reselection measurement is greater than a predetermined value, if so, executing step 24, otherwise, executing step 25;

that is, according to the comparison result between the measurement effectiveness metric parameter value and the predetermined value, the appropriate time interval from the current cell reselection measurement to the next cell reselection measurement is set through the

subsequent steps

24 and 25;

the cell reselection measurement is invalid, which means that the radio signal strength of the neighboring cell cannot meet the requirement of cell reselection or handover as measured and determined in the cell reselection measurement process, for example, the sum of the RSRP or RSRQ measurement value of the serving cell and a hysteresis value (usually 3 dB) is greater than the RSRP or RSRQ measurement value of the neighboring cell;

specifically, in this step 23, the corresponding predetermined value may be, but is not limited to, set to-3 dB or-5 dB, etc., at which time, if the RSRP or RSRQ measurement value of the neighboring cell is greater than the sum of the RSRP or RSRQ measurement value of the serving cell and the hysteresis value, and the greater metric exceeds the set predetermined value of-3 dB or-5 dB, step 24 is executed, otherwise, step 25 is executed;

it should be noted that, if a difference value obtained by subtracting an RSRP or RSRQ measurement value of an adjacent cell from a sum of an RSRP or RSRQ measurement value of a serving cell and a hysteresis value (usually 3 dB) is used as an effective metric parameter for cell reselection measurement, it is necessary to determine whether a corresponding effective metric parameter value is smaller than a predetermined value in this step, if so, step 24 is executed, otherwise, step 25 is executed;

step 24, for the case that the value of the validity metric parameter of the cell reselection measurement is greater than the predetermined value, that is, for the invalid cell reselection measurement with the higher value of the validity metric parameter of the cell reselection measurement, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 × T;

wherein, T is a standard interval time from a current cell reselection measurement to a next cell reselection measurement, a value of T is usually different in different communication systems, and for an LTE system, T may be a Default DRX Cycle (a Default discontinuous reception mode Cycle); obviously, those skilled in the art know that the T value can also be any other period value preset by human, which can satisfy the system communication requirement.

The invalid cell reselection measurement with a higher value of the validity metric parameter of the cell reselection measurement refers to: in this cell reselection measurement, the RSRP or RSRQ measurement value and the hysteresis value (typically 3 dB) of the serving cell and the RSRP or RSRQ measurement value of the neighbor cell are closer, for example, the amount by which the RSRP or RSRQ measurement value and the hysteresis value (typically 3 dB) of the serving cell is greater than the RSRP or RSRQ measurement value of the neighbor cell is lower than a predetermined Threshold.

Step 25, for the condition that the validity metric parameter of the cell reselection measurement does not exceed the predetermined value, that is, for the invalid cell reselection measurement with the lower validity metric parameter of the cell reselection measurement, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n1 × T;

wherein the meaning of T is the same as that described in step 24; in step 24 and step 25, n1 and n0 satisfy the condition: n1> n0>0, and n1, n0 are integers, for example, n1=2, n0=1 may be set, and it is obvious to those skilled in the art that setting n1 and n0 to other values satisfying the condition is also feasible.

The invalid cell reselection measurement with the lower validity metric parameter value of the cell reselection measurement refers to: in this cell reselection measurement, the RSRP or RSRQ measurement value of the serving cell plus the hysteresis value (typically 3 dB) is far away from the RSRP or RSRQ measurement value of the neighbor cell (again measurable by a set Threshold), for example, the RSRP or RSRQ measurement value of the serving cell plus the hysteresis value (typically 3 dB) is higher than the RSRP or RSRQ measurement value of the neighbor cell by more than a predetermined Threshold.

By implementing the first embodiment, it can be reasonably determined how long the next cell reselection measurement operation is performed at intervals to improve the possibility of obtaining a cell reselection measurement result meeting reselection or handover conditions in the case that the cell reselection measurement is invalid. Therefore, the probability of the terminal executing invalid cell reselection measurement operation is reduced by reasonably setting the time interval from the current cell reselection measurement to the next cell reselection measurement.

It should be noted that, in the above description, the determination of the validity metric parameter based on the signal quality of the neighboring cell is mainly taken as an example for description. Wherein, the corresponding signal quality of the neighboring cell can be obtained according to the cell reselection measurement result. That is, it is described in this embodiment that it is possible to determine how long in between the next cell reselection measurement operation will most likely result in a cell reselection measurement result that meets reselection or handover conditions by determining a validity metric parameter based on the signal quality of the neighbor cell. It is obvious to those skilled in the art that, by using the validity metric parameter determined based on the location change information of the terminal, in conjunction with the above-described process flow, it can also be determined how long the next cell reselection measurement operation will most likely result in a cell reselection measurement result meeting the reselection or handover condition.

Example two

In this embodiment, the corresponding plurality of predetermined time intervals are respectively set according to the corresponding validity metric parameters, so that in the process of determining the time interval from the current cell reselection measurement to the next cell reselection measurement, the time interval from the current cell reselection measurement to the next cell reselection measurement corresponding to the level can be set more finely according to different levels of the obtained validity metric parameters. Therefore, the time interval from the current cell reselection measurement to the next cell reselection measurement can be more accurately determined according to the effectiveness measurement parameter setting. The terminal can be switched to the cell with good service quality in time, and the possibility that the terminal executes ineffective cell reselection measurement can be reduced.

In this embodiment, assume that k predetermined values are set, and the values are, in order from large to small: a first predetermined value Threshold1, a second predetermined value Threshold2, … …, a kth predetermined value Threshold. The measurement effectiveness metric values can be divided into k +1 levels by the k preset values, wherein the measurement effectiveness metric value of the first level which is larger than the first preset value is highest, and then is reduced in sequence, and the measurement effectiveness metric value of the k +1 level which is smaller than the k preset value is lowest.

Time intervals from current cell reselection measurement to next cell reselection measurement are also set corresponding to the k +1 levels of measurement effectiveness metric values, the time intervals corresponding to the first level of measurement effectiveness metric values which are respectively greater than a first preset value are n0 × T, the time intervals corresponding to the second level of measurement effectiveness metric values which are greater than a second preset value and less than the first preset value are n1 × T, and the time intervals corresponding to the k +1 level of measurement effectiveness metric values which are less than a k preset value are nk × T.

Wherein n0 × T is the minimum time interval value, nk × T is the maximum time interval value, that is, the corresponding time intervals are, from small to large: n0 × T, n1 × T, … …, nk × T. Where n0, n1, … … nk are positive integers, and nk > … > n1> n0 is satisfied, for example, the corresponding value may be, but is not limited to, nk = k +1, … …, n1=2, n0=1, or n0, n1, … … nk may also be only required to be a positive number, and nk > … > n1> n0, for example, nk = k +0.5, … …, n1=1.5, n0=1, obviously, there is no requirement for an equal difference between n0, n1, … … nk, and the values of n0, n1, … … nk may also be flexibly set in other ways, or the corresponding value of n0 may also be a decimal number, such as n0=0.5, at this time, the time interval between the next cell reselection measurements may be shortened, so that the terminal may be rapidly parked or switched to a small cell with better service quality.

In this embodiment, the conceptual meanings of the valid cell reselection measurement result and the invalid cell reselection measurement result are already described in the first embodiment, and are not described in detail in this embodiment.

In this embodiment, specifically, the difference obtained by subtracting the RSRP of the serving cell from the RSRP/RSRQ measurement value of the neighboring cell or the sum of the RSRP of the serving cell or the RSRQ measurement value and the hysteresis value (usually 3 dB) may be used as the validity metric parameter for cell reselection measurement, or the signal quality measurement result of the neighboring cell may be used as the validity metric parameter for cell reselection measurement, or the location change information of the terminal may be used as the validity metric parameter for cell reselection measurement.

As shown in fig. 3, a specific implementation procedure of the method for cell reselection measurement according to the embodiment of the present invention may include:

step 31, judging whether the cell reselection measurement result is valid, if so, executing step 32, otherwise, executing step 33;

step 32, performing a cell handover operation or a cell reselection operation.

Step 33, when the cell reselection measurement result is invalid, determining the relationship between the validity measurement parameter value of the cell reselection measurement and a plurality of predetermined values, if the validity measurement parameter value is greater than a first predetermined value, executing step 34, if the validity measurement parameter value is smaller than the first predetermined value and greater than a kth predetermined value, executing step 35, and if the validity measurement parameter value is smaller than the kth predetermined value, executing step 36;

it should be noted that, in this step, if a difference value obtained by subtracting an RSRP/RSRQ measurement value of an adjacent cell from a sum of an RSRP or RSRQ measurement value of a serving cell and a hysteresis value (usually 3 dB) is used as an effective metric parameter for cell reselection measurement, it is necessary to determine whether the corresponding effective metric parameter value is smaller than a first predetermined value in this step, if the difference value is smaller than the first predetermined value, step 34 is executed, if the effective metric parameter value is larger than the first predetermined value and smaller than a kth predetermined value, step 35 is executed, and if the effective metric parameter value is larger than the kth predetermined value, step 36 is executed;

step 34, for an invalid cell reselection measurement with a higher validity metric parameter value, that is, for a case where the validity metric parameter value exceeds a first predetermined value, setting a time interval from a current cell reselection measurement to a next cell reselection measurement according to a minimum time interval value n0 × T, where the meaning of T is the same as that described in the previous step 24, and for an LTE system, T is typically a Default DRX Cycle.

Step 35, setting a time interval from current cell reselection measurement to next cell reselection measurement according to nm × T for the ineffective cell reselection measurement with the next highest validity measurement parameter value, that is, under the condition that the validity measurement parameter value is greater than the m +1 th predetermined value and less than the m-th predetermined value;

for example, for the case that the value of the effectiveness metric parameter is greater than the second predetermined value and less than the first predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n1 × T; and for the condition that the value of the effectiveness metric parameter is larger than a third preset value and smaller than a second preset value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n2 multiplied by T, and the like.

And step 36, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to nk × T for the invalid cell reselection measurement with a lower validity metric parameter value, namely the validity metric parameter value is smaller than the kth preset value, wherein the meaning of T is the same as that described previously, and details are not described here.

EXAMPLE III

In this embodiment, the description specifically takes the location change information of the terminal as a corresponding validity metric parameter as an example. Specifically, the location change information of the terminal is determined according to the movement condition of the terminal, for example, the location change information of the terminal is determined according to the moving speed of the terminal or the number of times of handover or cell reselection of the terminal in unit time. That is, in this embodiment, the corresponding validity metric parameter may be described by the moving speed information of the terminal or the number of times that the terminal performs handover or cell reselection per unit time, so as to determine how long the next cell reselection measurement operation will most likely obtain a cell reselection measurement result meeting the reselection or handover condition, and set the measurement interval according to the moving speed of the terminal. If the moving speed of the terminal is high or the number of times of handover or cell reselection of the terminal in unit time is large, the terminal may enter a new area in a short time, and a cell with service quality meeting reselection or handover conditions exists in the new area, and at this time, the next cell reselection measurement operation may be performed at a short time interval; on the contrary, if the moving speed of the terminal is slow or the number of times of handover or cell reselection of the terminal per unit time is small, the terminal may be in the current area for a long time, and at this time, the next cell reselection measurement operation may be performed at a long time interval. That is, for a fast moving terminal, a shorter time interval for cell reselection measurement is set, and for a slow moving terminal, a longer time interval for cell reselection measurement is set.

As shown in fig. 4, specifically taking the mobile speed information of the terminal to describe the corresponding validity metric parameter as an example, a specific implementation process of the method for cell reselection measurement provided by the embodiment of the present invention may include:

step 41, obtaining the moving speed information of the terminal;

step 42, judging whether the moving speed of the terminal is greater than a threshold value Vthreshold according to the moving speed information of the terminal, if so, executing step 43, otherwise, executing step 44;

step 43, determining that the terminal is in a fast moving state, and at this time, setting m0 × T1 as a time interval from current cell reselection measurement to next cell reselection measurement;

where T1 is the determined time interval between the current cell reselection measurement and the next cell reselection measurement, the T1 value may be set in advance according to the communication requirement of the communication system, or may be set adaptively according to a predetermined rule according to the state (e.g., the received signal quality) of the terminal.

And step 44, determining that the terminal is in a slow moving state, and setting a time interval from current cell reselection measurement to next cell reselection measurement according to m1 × T1 for the slow moving terminal, wherein T1 has the same meaning as that described above.

In

steps

43 and 44, m1> m0>0, and m1 and m0 may be integers, or m0 may also be a decimal, and m1 is an integer greater than 1, so that if m0 is a decimal, the time required for the terminal to switch or camp on the cell with better service quality can be shortened.

The above processing procedure may be executed when the current cell reselection measurement is invalid, or may also be executed when the current cell reselection measurement is valid, so as to reasonably adjust the trigger time of the subsequent cell reselection measurement.

In addition, in this embodiment, the number of times that the terminal performs handover or cell reselection in unit time may be used to describe a corresponding validity measurement parameter, and then a corresponding threshold is set based on the number of times that the terminal performs handover or cell reselection in unit time.

It should be noted that, with reference to the design idea of the second embodiment, in this embodiment, a plurality of thresholds used for determining the moving speed of the terminal or a plurality of thresholds used for determining the number of times that the terminal performs handover or cell reselection in a unit time may also be set, so as to divide the moving speed of the terminal or the number of times that the terminal performs handover or cell reselection in a unit time into a plurality of different levels, where the different levels correspondingly set different time intervals from the current cell reselection measurement to the next cell reselection measurement. Therefore, the time interval for executing the cell reselection measurement can be controlled more finely, so that the terminal can be ensured to be quickly switched or reside in the cell with better service quality, and the possibility that the terminal executes invalid cell reselection measurement can be reduced.

Example four

In this embodiment, the measurement time interval adjustment strategy based on the signal quality of the neighboring cell is specifically applied in combination with the measurement time interval adjustment strategy based on the location change information of the terminal (such as the moving speed of the terminal or the number of times that the terminal performs handover or cell reselection per unit time), so as to further ensure that the terminal can rapidly handover or camp on a cell with better service quality, and reduce the possibility that the terminal performs invalid cell reselection measurement.

Specifically, taking a measurement time interval adjustment strategy based on the signal quality of the neighboring cell and a measurement time interval adjustment strategy based on the moving speed of the terminal as an example, as shown in fig. 5, a specific implementation process of the method for cell reselection measurement provided by the embodiment of the present invention may include:

step 51, judging whether the cell reselection measurement result is valid, if so, executing step 52, otherwise, executing step 53;

the concept of valid cell reselection measurement results has been described in the first embodiment, and is not described herein again;

step 52, a cell handover operation or a cell reselection operation is performed.

Step 53, when the cell reselection measurement result is invalid every time, judging whether the signal quality of the adjacent cell is greater than a preset value, if so, executing step 54, otherwise, executing step 55;

in this step, the signal quality of the neighbor cell may also be compared with the signal quality of the current serving cell, to determine the time interval between adjusting the current cell reselection measurement to the next cell reselection measurement, e.g., to determine a relationship between a difference between the signal quality of the neighbor cell and the signal quality of the current serving cell and a predetermined value, to determine how to adjust the time interval from the current cell reselection measurement to the next cell reselection measurement, and, in particular, step 54 may be executed when a difference (which is a value smaller than zero) obtained by subtracting the signal quality of the current serving cell from the signal quality of the neighboring cell (which may generally include a 3dB hysteresis value) is greater than a predetermined value (i.e., although the signal quality of the neighboring cell is smaller than the signal quality of the current serving cell, the signal quality of the neighboring cell is closer to the signal quality of the current serving cell to a certain extent), otherwise, step 55 is executed;

step 54, for the invalid cell reselection measurement with the higher signal quality of the neighboring cell, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 × T.

Step 55, acquiring the moving speed information of the terminal, and executing step 56;

step 56, judging whether the moving speed of the terminal is greater than a threshold value Vthreshold according to the moving speed information of the terminal, if so, executing step 57, otherwise, executing step 58;

step 57, determining that the terminal is in a fast moving state, and at this time, setting n0 × T as a time interval from current cell reselection measurement to next cell reselection measurement;

and step 58, determining that the terminal is in a slow moving state, and setting the time interval from current cell reselection measurement to next cell reselection measurement for the slow moving terminal according to n1 × T.

The values of n0, n1, and T are already described in the first embodiment, and are not described herein again.

In the above processing procedure, the determination is specifically performed based on the signal quality of the neighboring cell, and then the determination is performed based on the moving speed of the terminal, so as to determine the time interval from the current cell reselection measurement to the next cell reselection measurement. Optionally, in the process of determining the time interval from the current cell reselection measurement to the next cell reselection measurement, the determination processing may also be performed based on the moving speed of the terminal, and then the determination processing may be performed based on the signal quality of the neighboring cell, so as to determine the time interval from the current cell reselection measurement to the next cell reselection measurement.

The moving speed of the terminal in the above processing procedure may be replaced by the number of times of handover or cell reselection of the terminal per unit time.

The fourth embodiment can further ensure that the terminal can be quickly switched or resided in the cell with better service quality, and can reduce the possibility that the terminal performs invalid cell reselection measurement, thereby saving the power consumption of the terminal.

EXAMPLE five

In this embodiment, the measurement time interval adjustment strategy based on the signal quality of the neighboring cell is specifically applied in combination with the measurement time interval adjustment strategy based on the location change information of the terminal.

Specifically, as shown in fig. 6A, a specific implementation procedure of the corresponding method for cell reselection measurement may include:

step 61, judging whether the cell reselection measurement result is valid, if so, executing step 62, otherwise, executing step 63;

step 62, a cell handover operation or a cell reselection operation is performed.

Step 63, when the cell reselection measurement result is invalid every time, judging whether the signal quality of the adjacent cell is greater than a preset value, if so, executing step 65, otherwise, executing step 64;

in this step, the signal quality of the neighbor cell may also be compared with the signal quality of the current serving cell, to determine the time interval between adjusting the current cell reselection measurement to the next cell reselection measurement, e.g., to determine a relationship between a difference between the signal quality of the neighbor cell and the signal quality of the current serving cell and a predetermined value, to determine how to adjust the time interval from the current cell reselection measurement to the next cell reselection measurement, and, in particular, step 65 may be executed when a difference (which is a value smaller than zero) obtained by subtracting the signal quality of the current serving cell from the signal quality of the neighboring cell (which may generally include a 3dB hysteresis value) is greater than a predetermined value (that is, although the signal quality of the neighboring cell is smaller than the signal quality of the current serving cell, the signal quality of the neighboring cell is closer to the signal quality of the current serving cell to a certain extent), otherwise, step 64 is executed;

and step 64, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n1 × T for the case that the signal quality of the neighboring cell is low.

Step 65, determining the relationship between the moving speed of the terminal and a plurality of predetermined values, if the moving speed of the terminal is greater than the first predetermined value, executing step 66, if the moving speed of the terminal is less than the first predetermined value and greater than the kth predetermined value, executing step 67, and if the value of the validity measure parameter is less than the kth predetermined value, executing step 68;

and step 66, for the case that the moving speed of the terminal is high, that is, the moving speed of the terminal exceeds the first predetermined value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to the minimum time interval value n0 × w0 × T, where the meaning of T is the same as that described in the previous step 24, and for the LTE system, T is usually a Default DRX Cycle.

Step 67, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 xwm x T for the case that the moving speed of the terminal is the next highest, that is, the moving speed of the terminal is greater than the m +1 th predetermined value and less than the m-th predetermined value;

for example, for the case that the value of the effectiveness metric parameter is greater than the second predetermined value and less than the first predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n0 × w1 × T; and for the case that the value of the effectiveness metric parameter is larger than a third preset value and smaller than a second preset value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 × w2 × T, and the like.

In step 68, for the case that the moving speed of the terminal is low, that is, the moving speed of the terminal is less than the kth predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n0 xwkxT, where T has the same meaning as that described previously and is not described in detail here.

The value of n0, n1, k, m, and T is described in the first embodiment, and is not described herein again, and w0< w1< w2< … … < wk.

In the above processing procedure, as shown in fig. 6B, the step 64 may be replaced by the following steps:

step 641 of determining a relationship between the moving speed of the terminal and a plurality of predetermined values, if the moving speed of the terminal is greater than a first predetermined value, executing step 642, if the moving speed of the terminal is smaller than the first predetermined value and greater than a kth predetermined value, executing step 643, and if the value of the validity measure parameter is smaller than the kth predetermined value, executing step 644;

and 642, for the case that the moving speed of the terminal is high, that is, the moving speed of the terminal exceeds the first predetermined value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to the minimum time interval value n1 × w0 × T, where the meaning of T is the same as that described in the previous step 24, and for the LTE system, T is typically a Default DRX Cycle.

Step 643, for the case that the moving speed of the terminal is the next highest, that is, the moving speed of the terminal is greater than the m +1 th predetermined value and less than the m-th predetermined value, setting a time interval from the current cell reselection measurement to the next cell reselection measurement according to n1 × wm × T;

for example, for the case that the value of the effectiveness metric parameter is greater than the second predetermined value and less than the first predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n1 × w1 × T; and for the case that the value of the effectiveness metric parameter is larger than a third preset value and smaller than a second preset value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n1 × w2 × T, and the like.

In step 644, for the case that the moving speed of the terminal is low, i.e. the moving speed of the terminal is less than the kth predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n1 xwkxt, where T has the same meaning as that described previously and is not described in detail here.

Based on the processing of the above steps 641 to 644, as shown in fig. 6B, the above steps 65 to 68 may be replaced by the following processing:

and for the condition that the signal quality of the adjacent cell is high, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 multiplied by T.

In the above processing procedure, as shown in fig. 6C, the step 64 may be replaced by the following steps:

step 645, determining the relationship between the moving speed of the terminal and a plurality of predetermined values, if the moving speed of the terminal is greater than the first predetermined value, executing step 646, if the moving speed of the terminal is less than the first predetermined value and greater than the kth predetermined value, executing step 647, if the value of the validity metric parameter is less than the kth predetermined value, executing step 648;

in step 646, when the moving speed of the terminal is high, that is, when the moving speed of the terminal exceeds the first predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to a minimum time interval value n1 × w10 × T, where the meaning of T is the same as that described in the previous step 24, and for the LTE system, T is typically a Default DRX Cycle.

Step 647, for the case that the moving speed of the terminal is the next highest, that is, the moving speed of the terminal is greater than the m1+1 th predetermined value and less than the m1 th predetermined value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n1 × w1m1 × T;

for example, for the case that the value of the effectiveness metric parameter is greater than the second predetermined value and less than the first predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n1 × w11 × T; and for the case that the value of the effectiveness metric parameter is larger than a third preset value and smaller than a second preset value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n1 × w12 × T, and the like.

Step 648, for the case that the moving speed of the terminal is low, that is, the moving speed of the terminal is less than the kth predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n1 × w1k1 × T, where the meaning of T is the same as that described previously and is not described in detail here.

Based on the processing of the above steps 645 to 648, as shown in fig. 6C, the above steps 65 to 68 may be replaced with the following processing:

step 651, determining the relationship between the moving speed of the terminal and a plurality of predetermined values, if the moving speed of the terminal is greater than the first predetermined value, executing step 661, if the moving speed of the terminal is less than the first predetermined value and greater than the kth predetermined value, executing step 671, if the value of the validity measure parameter is less than the kth predetermined value, executing step 681;

step 661, for the case that the moving speed of the terminal is high, that is, the moving speed of the terminal exceeds the first predetermined value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to the minimum time interval value n0 × w20 × T, where the meaning of T is the same as that described in the previous step 24, and for the LTE system, T is generally a Default DRX Cycle.

Step 671, for the case that the moving speed of the terminal is the next highest, i.e. the moving speed of the terminal is greater than the m2+1 th predetermined value and less than the m2 th predetermined value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 × w2m2 × T;

for example, for the case that the value of the effectiveness metric parameter is greater than the second predetermined value and less than the first predetermined value, the time interval from the current cell reselection measurement to the next cell reselection measurement is set according to n0 × w21 × T; and for the case that the value of the effectiveness metric parameter is larger than a third preset value and smaller than a second preset value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 × w22 × T, and the like.

And step 681, for the case that the moving speed of the terminal is low, that is, the moving speed of the terminal is less than the kth predetermined value, setting the time interval from the current cell reselection measurement to the next cell reselection measurement according to n0 × w2k2 × T, where the meaning of T is the same as that described previously and is not described in detail herein.

The value of n0, n1, and T is already described in the first embodiment, and is not described herein again, and accordingly w10< w11< w12< … … < w1k1, w20< w21< w22< … … < w2k2, m1 is a natural number smaller than k1, m2 is a natural number smaller than k2, and k1 and k2 are the number of set predetermined values.

It should be noted that the predetermined value in step 645 and the predetermined value in step 651 may be the same or different, and may be flexibly set according to the actual application requirement.

In the above-described processing procedure based on fig. 6A, 6B, and 6C, the moving speed of the corresponding terminal may be replaced by the number of times of handover or cell reselection of the terminal per unit time.

The technical scheme provided by the fifth embodiment can ensure that the terminal can be quickly switched or resided in the cell with better service quality, reduce the possibility that the terminal executes invalid cell reselection measurement, and save the power consumption of the terminal.

It should be noted that, in the determination process based on each predetermined value described in the foregoing embodiment of the present invention, the case that the value is greater than the predetermined value may be equal to or greater than the predetermined value, and similarly, the case that the value is less than the predetermined value may be equal to or less than the predetermined value. Those skilled in the art can reasonably set in a specific application to ensure that the subsequent processing can be reasonably executed when the parameter value to be judged (effectiveness measurement parameter, such as measurement effectiveness measurement value) is equal to a preset value.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

An embodiment of the present invention further provides a device for cell reselection measurement, and a specific implementation structure of the device is shown in fig. 7, where the device may include the following processing units:

a validity metric parameter determining unit 71, configured to determine a validity metric parameter of the cell reselection measurement, where the validity metric parameter may be used to indicate a validity trend of the cell reselection measurement, that is, a short message of a long time required for a subsequent cell reselection measurement result to meet a reselection or handover condition can be determined by the validity metric parameter, that is, a long or short message of a time required for a subsequent cell reselection measurement result to meet a reselection or handover condition can be determined by the validity metric parameter;

a measurement trigger time determining unit 72, configured to determine trigger time information of cell reselection measurement according to the validity metric parameter determined by the validity metric parameter determining unit 71;

because the corresponding validity measurement parameter indicates the validity variation trend of the cell reselection measurement, whether the time required by the cell reselection measurement result meeting the reselection or handover condition is longer or shorter can be determined according to the validity measurement parameter, if the corresponding validity measurement parameter reveals that the time required by the cell reselection measurement result meeting the reselection or handover condition is longer, the triggering time of the next cell reselection measurement can be delayed, so as to avoid the terminal from frequently performing invalid cell reselection measurement, otherwise, if the validity measurement parameter reveals that the time required by the cell reselection measurement result meeting the reselection or handover condition is shorter, the next cell reselection measurement can be triggered according to normal time, or the next cell reselection measurement can be triggered a little time in advance;

a cell reselection measurement triggering unit 73, configured to trigger a cell reselection measurement operation based on the trigger time information determined by the measurement trigger time determining unit 72.

Alternatively, if determining the validity metric parameter according to the signal quality measurement result, as shown in fig. 8, the validity metric parameter determining unit 71 may specifically include a signal quality measuring unit 711, configured to measure the signal quality of the neighboring cell and determine the corresponding validity metric parameter according to the obtained signal quality measurement result, specifically, the measurement result of the signal quality of the neighboring cell may be directly used as the validity metric parameter, or a difference between the signal quality of the neighboring cell and the signal quality of the serving cell may also be used as the validity metric parameter.

Preferably, if the validity measure parameter is determined according to the measurement result of the location change information, as shown in fig. 9, the validity measure parameter determining unit 71 may specifically include a location change information measuring unit 712, which is configured to measure the location change information of the terminal and determine the location change information as the validity measure parameter according to the obtained location change information.

Optionally, as shown in fig. 10, the corresponding validity metric parameter determining unit 71 may further include the signal quality measuring unit 711 and the location change information measuring unit 712.

Further, the signal quality measurement result may include, but is not limited to, RSRP or RSRQ measurement values for neighboring cells; the location change information measurement result may include, but is not limited to, a measurement result of a location change speed of the terminal, such as a moving speed of the terminal or the number of times of handover or cell reselection of the terminal per unit time.

Based on the various implementations of the above-mentioned validity metric parameter determination unit 71, the implementation of the corresponding measurement trigger time determination unit 72 is also different, and will be separately described below:

if the validity metric parameter is determined according to the signal quality measurement result, still referring to fig. 8, the corresponding measurement trigger time determining unit 72 may specifically include the following processing units:

a first judgment unit 721 for judging whether the validity metric parameter determined by the signal quality measurement unit 711 according to the signal quality measurement result is greater than a predetermined signal quality value; wherein the validity metric parameters determined from the obtained signal quality measurements may include, but are not limited to: taking the signal quality measurement result of the adjacent cell as a corresponding effectiveness measurement parameter, or taking the difference obtained by subtracting the signal quality measurement result of the serving cell from the signal quality measurement result of the adjacent cell as a corresponding effectiveness measurement parameter, wherein the obtained difference is smaller than zero;

a first measurement trigger time processing unit 722, configured to, according to the determination result of the first determining unit 721, if the validity metric parameter determined according to the signal quality measurement result is greater than a predetermined signal quality value (the predetermined signal quality value is used to indicate a predetermined condition that the signal quality of the neighboring cell is good or bad, and the validity metric parameter greater than the predetermined signal quality value indicates that the signal quality of the neighboring cell is better than the predetermined condition), indicate that the validity metric parameter determined according to the signal quality measurement result indicates that the validity variation trend of the cell reselection measurement is towards validity, at which time the time interval between the current measurement and the next measurement may be reduced, otherwise, indicate that the validity metric parameter determined according to the signal quality measurement result indicates that the validity variation trend of the cell reselection measurement is towards invalidity, at which time the time interval between the current measurement and the next measurement may be increased, embroidering the possibility of the terminal performing invalid cell reselection measurements.

If the validity metric parameter is determined according to the measurement result of the location change information, still referring to fig. 9, the corresponding measurement trigger time determining unit 72 may specifically include the following processing units:

a second judging unit 723, configured to judge whether the validity metric parameter determined according to the measurement result of the location change information measured by the location change information measuring unit 712 is greater than a predetermined location change value;

a second measurement trigger time processing unit 724, configured to, according to the determination result of the second determining unit 723, reduce a time interval between the current measurement and the next measurement if the validity measurement parameter determined according to the measurement result of the position change information is greater than the predetermined position change value, otherwise, increase the time interval between the current measurement and the next measurement; specifically, the location change information measurement result may be adopted as a corresponding validity measure parameter, for example, the moving speed of the terminal or the number of times of handover or cell reselection occurring in the terminal per unit time as the location change information measurement result is adopted as a corresponding validity measure parameter;

if validity measurement parameters are determined according to the signal quality measurement result and the position change information measurement result, respectively, as shown in fig. 10, the corresponding measurement trigger time determination unit 72 may specifically include a first determination unit 721, a second determination unit 723, and a third measurement trigger time processing unit 725, where the third measurement trigger time processing unit 725 is configured to decrease a time interval between the current measurement and the next measurement when the first determination unit 721 determines that the validity measurement parameter determined according to the signal quality measurement result is greater than the predetermined signal quality value, otherwise, decrease a time interval between the current measurement and the next measurement when the determination result of the second determination unit 723 determines that the validity measurement parameter determined according to the position change information measurement result is greater than the predetermined position change value, otherwise, increase a time interval between the current measurement and the next measurement, or, the third measurement trigger time processing unit 725 is configured to decrease the time interval between the current measurement and the next measurement when the second determining unit 723 determines that the validity metric parameter determined according to the measurement result of the location change information is greater than the predetermined location change value, otherwise, decrease the time interval between the current measurement and the next measurement when the first determining unit 721 determines that the validity metric parameter determined according to the measurement result of the signal quality is greater than the predetermined signal quality value, otherwise, increase the time interval between the current measurement and the next measurement.

Further, the corresponding predetermined signal quality values may include one or more values, and if the predetermined signal quality values include a plurality of values, such as k values, the k predetermined signal quality values are, in order from large to small: first, second, … …, kth predetermined signal quality value, k being a positive integer greater than 1, then measurement trigger time determination unit 72 may specifically include the following processing units, as shown in fig. 11:

a third judging unit 726 for judging a relationship between the validity metric parameter determined according to the signal quality measurement result obtained by the signal quality measurement unit and k predetermined signal quality values;

a fourth measurement trigger time processing unit 727, configured to, according to the judgment result of the third judging unit 726, if the effectiveness metric parameter determined from the signal quality measurements is greater than the first predetermined signal quality value, the time interval between this measurement and the next measurement is set to the time interval corresponding to the preset first predetermined signal quality value, if the validity measure parameter determined from the signal quality measurements is greater than the (m + 1) th predetermined signal quality value and less than the (m) th predetermined signal quality value, the time interval between this measurement and the next measurement is set to the time interval corresponding to the m +1 th predetermined signal quality value set in advance, if the effectiveness metric parameter determined from the signal quality measurements is less than the kth predetermined signal quality value, setting the time interval between the current measurement and the next measurement as a preset maximum time interval; wherein m is a natural number smaller than k, and the time interval corresponding to the m +1 th preset value is larger than the time interval corresponding to the m preset value.

Optionally, the corresponding predetermined position variation value may include one or more, and if the predetermined position variation value includes a plurality of values, such as k, the k predetermined position variation values are, in order from large to small: if the first predetermined position change value, the second predetermined position change value, … …, and the kth predetermined position change value are positive integers greater than 1, as shown in fig. 12, the measurement trigger time determination unit 72 may specifically include the following processing units:

a fourth judging unit 728 for judging a relationship between the validity measurement parameter determined according to the measurement result of the position change information and the k predetermined position change values measured by the position change information measuring unit;

a fifth measurement trigger time processing unit 729 for, according to the determination result of the fourth determination unit 728, if the validity metric parameter determined from the location change information measurement is greater than the first predetermined location change value, the time interval between the current measurement and the next measurement is set as the time interval corresponding to the preset first preset position change value, if the validity metric parameter determined from the location change information measurement is greater than the m +1 th predetermined location change value and less than the m-th predetermined location change value, the time interval between the current measurement and the next measurement is set as the time interval corresponding to the m +1 preset position change value which is set in advance, if the validity metric parameter determined from the position change information measurement is less than the kth predetermined position change value, setting the time interval between the current measurement and the next measurement as a preset maximum time interval; wherein m is a natural number smaller than k, and the time interval corresponding to the m +1 th preset value is larger than the time interval corresponding to the m preset value.

An embodiment of the present invention further provides a terminal device, as shown in fig. 13, where the apparatus for cell reselection measurement is provided in the terminal device, and functions of each processing unit included in the apparatus for cell reselection measurement provided in the terminal device are already described in the embodiment of the apparatus for cell reselection measurement, and are not described in detail here.

It should be noted that, specific implementation manners of functions implemented by the processing units included in the apparatus have been described in detail in the foregoing embodiments, and therefore, detailed descriptions thereof are omitted here.

Through the implementation of the device embodiment, it can be reasonably determined how long the next cell reselection measurement operation is performed at intervals, so that the possibility of obtaining the cell reselection measurement result meeting the reselection or handover condition is improved. Therefore, the probability of the terminal executing invalid cell reselection measurement operation is reduced by reasonably setting the time interval from current cell reselection measurement to next cell reselection measurement, the power consumption of the terminal equipment is saved, and the standby time of the terminal equipment is prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of cell reselection measurement, comprising:

measuring the signal quality of the adjacent cell, and determining the effectiveness measurement parameter according to the obtained signal quality measurement result;

the step of determining the trigger time information of cell reselection measurement according to the validity metric parameter comprises:

judging whether the effectiveness measurement parameter determined according to the obtained signal quality measurement result is larger than a preset signal quality value, if so, reducing the time interval between the current measurement and the next measurement, otherwise, improving the time interval between the current measurement and the next measurement; wherein the predetermined signal quality value is used for indicating a predetermined condition of quality of a signal of a neighboring cell, and the validity measure parameter being greater than the predetermined signal quality value means that the signal quality of the neighboring cell is better than the predetermined condition, and the validity measure parameter determined according to the obtained signal quality measurement result includes: the signal quality measurement result of the neighboring cell, or the difference obtained by subtracting the signal quality measurement result of the serving cell from the signal quality measurement result of the neighboring cell, where the obtained difference is less than zero.

2. The method of claim 1,

the predetermined signal quality values include one or more, and if the predetermined signal quality values include k, the k predetermined signal quality values are, from large to small: a first predetermined signal quality value, a second predetermined signal quality value, … …, a kth predetermined signal quality value, k being a positive integer greater than 1, the step of determining time-to-trigger information for cell reselection measurements comprising:

determining a relationship between an effectiveness metric parameter determined from the obtained signal quality measurement results and k predetermined signal quality values, setting a time interval between the present measurement and a next measurement to a preset time interval corresponding to a first predetermined signal quality value if the effectiveness metric parameter determined from the obtained signal quality measurement results is greater than the first predetermined signal quality value, setting a time interval between the present measurement and the next measurement to a preset time interval corresponding to a m + 1-th predetermined signal quality value if the effectiveness metric parameter determined from the obtained signal quality measurement results is greater than the m + 1-th predetermined signal quality value and less than the m-th predetermined signal quality value, and setting a time interval between the present measurement and the next measurement to a preset time interval corresponding to the m + 1-th predetermined signal quality value if the effectiveness metric parameter determined from the obtained signal quality measurement results is less than the k-th predetermined signal quality value, setting the time interval between the current measurement and the next measurement as a preset maximum time interval;

wherein m is a natural number smaller than k, and the time interval corresponding to the m +1 th preset value is larger than the time interval corresponding to the m preset value.

3. The method of claim 1 or 2, wherein the signal quality measurement comprises a reference signal received power, RSRP, or a reference signal received quality, RSRQ, measurement for a neighbor cell.

4. A method of cell reselection measurement, comprising:

judging whether the effectiveness measurement parameter determined according to the obtained signal quality measurement result is larger than a preset signal quality value, if so, reducing the time interval between the current measurement and the next measurement, otherwise, judging whether the effectiveness measurement parameter determined according to the position change information measurement result is larger than a preset position change value, if so, reducing the time interval between the current measurement and the next measurement, otherwise, improving the time interval between the current measurement and the next measurement;

or,

and judging whether the effectiveness measurement parameter determined according to the position change information measurement result is larger than a preset position change value or not, if so, reducing the time interval between the current measurement and the next measurement, otherwise, judging whether the effectiveness measurement parameter determined according to the obtained signal quality measurement result is larger than a preset signal quality value or not, if so, reducing the time interval between the current measurement and the next measurement, otherwise, improving the time interval between the current measurement and the next measurement.

5. The method of claim 4,

wherein m is a natural number smaller than k, and the time interval corresponding to the m +1 th preset value is larger than the time interval corresponding to the m preset value;

or,

the preset position change value comprises one or more change values, and if the preset position change value comprises k change values, the k preset position change values are sequentially as follows from large to small: a first predetermined location change value, a second predetermined location change value, … …, a kth predetermined location change value, k being a positive integer greater than 1, the step of determining the triggering time information of the cell reselection measurement includes:

judging the relationship between the effectiveness metric parameter determined according to the position change information measurement result and k preset position change values, if the effectiveness metric parameter determined according to the position change information measurement result is larger than a first preset position change value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the first preset position change value, if the effectiveness metric parameter determined according to the position change information measurement result is larger than an m +1 preset position change value and is smaller than an m +1 preset position change value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the m +1 preset position change value, and if the effectiveness metric parameter determined according to the position change information measurement result is smaller than the k preset position change value, setting the time interval between the current measurement and the next measurement as a preset maximum time interval;

6. The method of claim 4 or 5, wherein the signal quality measurement comprises a reference signal received power, RSRP, or reference signal received quality, RSRQ, measurement for a neighbor cell.

7. A method according to claim 4 or 5, wherein the location change information measurements comprise measurements of the speed of change of terminal location or measurements of the number of times a handover or cell reselection has occurred per unit time for the terminal.

8. An apparatus for cell reselection measurement, comprising:

the validity metric parameter determination unit includes:

the measurement trigger time determination unit includes:

a first judgment unit for judging whether the validity measurement parameter determined by the signal quality measurement unit according to the obtained signal quality measurement result is greater than a predetermined signal quality value; wherein the predetermined signal quality value is used for indicating a predetermined condition of quality of a signal of a neighboring cell, and the validity measure parameter being greater than the predetermined signal quality value means that the signal quality of the neighboring cell is better than the predetermined condition, and the validity measure parameter determined according to the obtained signal quality measurement result includes: the signal quality measurement result of the adjacent cell, or the difference obtained by subtracting the signal quality measurement result of the serving cell from the signal quality measurement result of the adjacent cell, wherein the obtained difference is less than zero;

and the first measurement trigger time processing unit is used for reducing the time interval between the current measurement and the next measurement according to the judgment result of the first judgment unit and if the effectiveness measurement parameter determined according to the signal quality measurement result is greater than the preset signal quality value, or else, improving the time interval between the current measurement and the next measurement.

9. The apparatus of claim 8,

the predetermined signal quality values include one or more, and if the predetermined signal quality values include k, the k predetermined signal quality values are, from large to small: a first predetermined signal quality value, a second predetermined signal quality value, … …, a kth predetermined signal quality value, k being a positive integer greater than 1, the measurement trigger time determination unit comprising:

a third judging unit for judging the relationship between the validity metric parameter determined according to the obtained signal quality measurement result and k predetermined signal quality values measured by the signal quality measurement unit;

a fourth measurement trigger time processing unit for, according to the judgment result of the third judging unit, if the effectiveness metric parameter determined from the obtained signal quality measurements is greater than a first predetermined signal quality value, the time interval between this measurement and the next measurement is set to the preset time interval corresponding to said first predetermined signal quality value, if the validity measure parameter determined from the obtained signal quality measurements is greater than the (m + 1) th predetermined signal quality value and less than the (m) th predetermined signal quality value, the time interval between the present measurement and the next measurement is set to the time interval corresponding to the m +1 th predetermined signal quality value set in advance, if the effectiveness metric parameter determined from the obtained signal quality measurements is less than the kth predetermined signal quality value, setting the time interval between the current measurement and the next measurement as a preset maximum time interval;

10. The apparatus of claim 8 or 9, wherein the signal quality measurement comprises a reference signal received power, RSRP, or a reference signal received quality, RSRQ, measurement for a neighbor cell.

11. An apparatus for cell reselection measurement, comprising:

the validity metric parameter determination unit includes:

and,

the position change information measuring unit is used for measuring the position change information of the terminal and determining the effectiveness measurement parameter according to the obtained position change information measuring result;

a second judging unit, configured to judge whether an effectiveness metric parameter determined according to a measurement result of the position change information, which is obtained by the measurement performed by the position change information measuring unit, is greater than a predetermined position change value;

a third measurement trigger time processing unit, configured to reduce a time interval between the current measurement and the next measurement when the first determination unit determines that the validity metric parameter determined according to the obtained signal quality measurement result is greater than the predetermined signal quality value, otherwise, reduce the time interval between the current measurement and the next measurement when the determination result of the second determination unit determines that the validity metric parameter determined according to the position change information measurement result is greater than the predetermined position change value, otherwise, increase the time interval between the current measurement and the next measurement, or, configured to reduce the time interval between the current measurement and the next measurement when the second determination unit determines that the validity metric parameter determined according to the position change information measurement result is greater than the predetermined position change value, otherwise, determine that the validity metric parameter determined according to the obtained signal quality measurement result is greater than the predetermined signal quality value when the first determination unit determines that the validity metric parameter determined according to the obtained signal quality measurement result is greater than the predetermined signal quality value When the quality value is high, the time interval between the measurement and the next measurement is shortened, otherwise, the time interval between the measurement and the next measurement is increased.

12. The apparatus of claim 11,

or,

the preset position change value comprises one or more change values, and if the preset position change value comprises k change values, the k preset position change values are sequentially as follows from large to small: a first predetermined position change value, a second predetermined position change value, … …, a kth predetermined position change value, k being a positive integer greater than 1, the measurement trigger time determination unit comprising:

a fourth judging unit, configured to judge a relationship between the validity measurement parameter determined according to the measurement result of the position change information and obtained by the measurement by the position change information measuring unit, and k predetermined position change values;

a fifth measurement trigger time processing unit for, according to the judgment result of the fourth judging unit, if the validity metric parameter determined from the location change information measurement is greater than a first predetermined location change value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the first preset position change value, if the validity metric parameter determined from the location change information measurement result is greater than the m +1 th predetermined location change value and less than the m-th predetermined location change value, setting the time interval between the current measurement and the next measurement as the preset time interval corresponding to the m +1 preset position change value, if the validity metric parameter determined from the location change information measurement is less than the kth predetermined location change value, setting the time interval between the current measurement and the next measurement as a preset maximum time interval;

13. The apparatus of claim 11 or 12, wherein the signal quality measurement comprises a reference signal received power, RSRP, or a reference signal received quality, RSRQ, measurement for a neighbor cell.

14. An arrangement according to claim 10 or 11, characterized in that the location change information measurements comprise measurements of the speed of change of the terminal's location or measurements of the number of times a handover or cell reselection has occurred per unit time for the terminal.

15. A terminal device, characterized in that it comprises means for cell reselection measurement according to any of claims 8-14.