Method and device for reporting measurementTechnical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for reporting measurement.
Background
First, User Equipment (UE) Mobility State Estimation (MSE)
Currently, the mobility state of the UE is classified into three types, i.e., a High-mobility state (High-mobility state), a Medium-mobility state (Medium-mobility state), and a Normal-mobility state (Normal-mobility state).
When the UE is in an IDLE state (RRC _ IDLE state), the decision of three mobility states of the UE is based on the number of cell reselections, which is specifically as follows:
1) moving state detection criterion:
medium movement state: at TCRmaxWithin a time period, the cell reselection times exceed NCR_MBut not exceeding NCR_H；
High moving state: at TCRmaxWithin a time period, the cell reselection times exceed NCR_H；
Wherein, TCRmaxTime for evaluating number of times of cell reselection/handover by UE, NCR_MNumber of cell reselections/handovers required for a UE to enter a medium mobility state, NCR_HThe number of cell reselections/handovers required for the UE to enter a high mobility state.
In the above criteria, no successive reselections between two identical cells are calculated.
2) And (3) moving state conversion:
if the detection criterion of the high-mobility state is met, the UE enters the high-mobility state;
otherwise, if the detection criterion of the medium-mobility state is met, the UE enters the medium-mobility state;
otherwise, if at time TCRmaxHystIf the detection criteria of the high mobility state or the medium mobility state are not met, the UE enters a normal mobility state, TCRmaxHystAn additional evaluation time that needs to be met before the UE enters the normal mobility state.
The mobility state transition process of the UE can be seen in FIG. 1, assuming TCRmax=30s，TCRmaxHyst=40s and NCR_M=1, because the UE performs 2 times of cell reselection, if the detection criterion of the medium mobility state is satisfied, the UE enters the medium mobility state; since the UE detects itself at TCRmaxIf the cell reselection is not carried out within the time, T is startedCRmaxHystIf the UE detects itself at TCRmaxHystAnd if the cell reselection is not carried out within the time, entering a normal moving state.
In addition, if the UE is in a high mobility state or a medium mobility state, the UE also needs to apply a speed-based scaling rule.
For a UE in a connected state, the mobile state detection criteria are similar to those of an idle state, and the following points mainly differ:
a) replacing the cell reselection times with the switching times;
b) using the speed scaling factor provided in the dedicated signaling, rather than in the system message, specifically:
including parameter T in system broadcast of UE current cellCRmax，NCR_H，NCR_MAnd TCRmaxHystThe method is used for detecting the UE moving state in an idle state; including parameter T in UE-specific signalingCRmax，NCR_H，NCR_MAnd TCRmaxHystThe method is used for detecting the UE moving state in the connected state.
With the deployment of home base stations, small cells/micro cells, etc., a conventional homogeneous network with only macro cells will gradually evolve into a heterogeneous network (hetnet) with multiple types of cells coexisting, such as a heterogeneous network architecture with a macro cell and a small cell (pico cell) coexisting shown in fig. 2, and the macro cell and the small cell in fig. 2 are only different in coverage, and both can implement the same function, for example, both can control a terminal to perform handover. The small cell is in the coverage of the macro cell, and may be a co-frequency cell or an inter-frequency cell with the macro cell.
For the small cells used for hot spot coverage, the UE is handed over to the small cells in the scenario deployed in the coverage of the macro cell, so as to improve the throughput in the hot spot area. However, for the UE in a high-speed moving state, because the moving speed is high and the coverage area of the small cell is small, even if the UE is successfully switched to the small cell, the UE stays in the small cell for a short time, the gain for improving the throughput is not obvious, and the failure rate of the UE switching is increased, so that the user experience and the overall performance of the system are reduced.
In summary, in a heterogeneous network scenario, it is highly likely that a UE in a high-speed moving state is handed over to a small cell, so that a handover failure probability is increased, and a user experience and overall system performance are affected.
Disclosure of Invention
The embodiment of the invention provides a method and a device for measurement reporting, which are used for solving the problems that in the existing heterogeneous network scene, as UE in a high-speed moving state is possibly switched to a small cell, the probability of switching failure is increased, and the user experience and the overall performance of a system are influenced.
The embodiment of the invention provides a method for reporting measurement, which comprises the following steps:
user Equipment (UE) receives indication information sent by a base station, wherein the indication information is used for indicating that the UE carries information related to the self moving speed when measurement report is carried out;
the UE evaluates the self moving speed;
and when the UE determines that the measurement reporting condition is met, the UE performs measurement reporting to the base station and carries current speed information of the UE in a measurement report message, wherein the speed information is determined by the UE according to a current evaluation result of the moving speed of the UE.
The embodiment of the invention provides a method for processing measurement report, which comprises the following steps:
a base station sends indication information to UE, wherein the indication information is used for indicating that the UE carries information related to the self moving speed when measurement report is carried out;
the base station receives a measurement report message sent by the UE, wherein the measurement report message carries the current speed information of the UE, and the speed information is determined by the UE according to the current evaluation result of the self moving speed;
and the base station judges whether the UE performs the switching according to the speed information and the type of the target cell switched by the UE.
The embodiment of the invention provides a device for measurement reporting, which comprises:
the receiving module is used for receiving indication information sent by a base station, wherein the indication information is used for indicating that the receiving module carries information related to the self moving speed when the receiving module carries out measurement reporting;
the speed evaluation module is used for evaluating the moving speed of the speed evaluation module;
and the reporting module is used for carrying out measurement reporting on the base station when the measurement reporting condition is determined to be met, and carrying the current speed information of the base station in the measurement reporting message, wherein the speed information is determined according to the current evaluation result of the moving speed of the base station.
The embodiment of the invention provides a device for carrying out measurement reporting processing, which comprises:
a sending module, configured to send indication information to a UE, where the indication information is used to indicate that the UE carries information related to its own moving speed when performing measurement reporting;
a receiving module, configured to receive a measurement report message sent by the UE, where the measurement report message carries current speed information of the UE, and the speed information is determined by the UE according to a current evaluation result of a moving speed of the UE;
and the processing module is used for judging whether the UE performs the switching according to the speed information and the type of the target cell switched by the UE.
In the implementation of the invention, when the UE reports the measurement to the base station, the measurement report message carries the current speed information of the UE, so that the base station can comprehensively consider the speed information of the UE when performing switching judgment, thereby avoiding switching the UE in a high-speed moving state to a small cell, further reducing the switching failure rate and improving the user experience and the overall performance of the system.
Drawings
FIG. 1 is a diagram illustrating a mobility state transition process of a UE in the background art;
fig. 2 is a diagram of a heterogeneous network architecture in which a macro cell and a small cell coexist in the background art;
fig. 3 is a schematic flow chart of a method for reporting measurement according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for performing measurement reporting processing according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a network architecture according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a device for measurement reporting according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for performing measurement reporting according to an embodiment of the present invention.
Detailed Description
In the implementation of the invention, when the UE reports the measurement to the base station, the measurement report message carries the current speed information of the UE, so that the base station can comprehensively consider the speed information of the UE when performing switching judgment, thereby avoiding the problem of switching the UE in a high-speed moving state to a small cell.
The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.
Referring to fig. 3, a method for reporting measurement according to an embodiment of the present invention includes the following steps:
step 31, the UE receives indication information sent from the base station, where the indication information is used to indicate that the UE carries information related to its own moving speed when performing measurement reporting;
step 32, the UE evaluates the self moving speed;
and step 33, when the UE determines that the measurement report condition is met, the UE performs measurement report measurement on the base station, and carries the current speed information of the UE in the measurement report message, wherein the speed information is determined by the UE according to the current evaluation result of the self moving speed.
In the embodiment of the invention, when the UE performs measurement report, the current speed information of the UE is carried in the measurement report message, so that the base station can comprehensively consider the speed information of the UE when performing switching judgment, thereby avoiding switching the UE in a high-speed moving state to a small cell, further reducing the switching failure rate and improving the user experience and the overall performance of the system.
It should be noted that the Measurement Report message, i.e., the Measurement Report message, referred to in the embodiments of the present invention is also referred to as a Measurement Report message.
In the implementation, in step 31, the UE receives the indication information transmitted from the base station, which includes the following two ways:
the method A, UE receives measurement configuration information sent by a base station, where the measurement configuration information carries indication information for indicating that the UE carries information related to its own moving speed when performing measurement reporting;
in this way, the base station configures the indication information in the measurement configuration information configured for the UE, for example, 1bit (bit) indication information is added to the measurement configuration information, and if the indication information is "1", the base station indicates that the UE carries information related to its own moving speed when performing measurement reporting; if the value is "0", the UE is instructed not to carry information related to its own moving speed when performing measurement report.
A mode B, UE receives indication information which is sent by a base station through a high-level signaling and used for indicating that the UE carries information related to the self moving speed when measurement report is carried out;
in this way, the base station configures indication information for the UE through high-level signaling, specifically:
the base station may send the indication information to the UE through a higher layer signaling before sending the measurement configuration information to the UE; correspondingly, the UE receives the measurement configuration information sent by the base station first, and then receives the indication information sent by the base station;
the base station may also send the indication information to the UE through a high-level signaling after sending the measurement configuration information to the UE; correspondingly, the UE receives the indication information sent by the base station first, and then receives the measurement configuration information sent by the base station.
Preferably, the higher layer signaling may be Radio Resource Control (RRC) or Media Access Control (MAC) signaling.
In the embodiment of the present invention, the speed information determined by the UE may be a moving speed of the UE, moving state information of the UE, or state indication information used for indicating whether the UE is in a high-speed moving state.
For example, for the mobile state information, 2 bits may be used to indicate the specific content of the mobile state information, such as "00" indicating a normal mobile state (i.e., a low-speed mobile state), "01" indicating a medium mobile state (i.e., a medium-speed mobile state), "11" indicating a high mobile state (i.e., a high-speed mobile state); characters may also be used to indicate the specific content of the movement state information, such as "L" indicating a normal movement state (i.e., a low-speed movement state), "M" indicating a medium movement state (i.e., a medium-speed movement state), "H" indicating a high movement state (i.e., a high-speed movement state); it should be noted that, regardless of the expression method adopted by the mobility state information, it is necessary to ensure that the base station and the UE have the same understanding of the mobility state information.
For example, for the status indication information, 1bit may be used to indicate the specific content of the status indication information, such as "1" indicates that the UE is in a high-speed moving state, and "0" indicates that the UE is not in a high-speed moving state; characters can also be used to indicate the specific content of the status indication information, such as "Y" indicates that the UE is in a high-speed moving state, and "N" indicates that the UE is not in a high-speed moving state; it should be noted that, regardless of the representation method adopted by the status indication information, it is necessary to ensure that the base station and the UE have the same understanding of the status indication information.
In implementation, in step 32, the UE evaluates its own moving speed, including:
the UE estimates the moving speed of the UE by using an MSE (Global Position System, GPS) mode, a Global Positioning System (GPS) mode, or an enhanced MSE mode.
If the UE evaluates its own moving speed by using the MSE or the enhanced MSE, the evaluation result obtained by the UE is the moving state of the UE (i.e., a high-mobility state, a medium-mobility state, or a normal-mobility state), and the specific evaluation process refers to a 3GPP TS36.304 protocol;
if the UE evaluates its own moving speed by using a GPS speed measurement method, the evaluation result obtained by the UE is the value of the moving speed of the UE (e.g., 30 km/h).
It should be noted that, in step 33, the measurement report condition and the determination of whether the measurement report condition is satisfied may refer to the 3GPP TS36.331 protocol, which is not described herein again.
In the implementation, in step 33, the UE carries the speed information in the measurement report message, which is determined by the UE according to the evaluation result of the self-moving speed when the measurement report condition is satisfied.
Further, because the UE adopts different evaluation methods, the content of the determined speed information may also be different, which specifically includes the following two cases:
in the first case, if a GPS speed measurement mode is adopted, the evaluation result is a specific numerical value of the moving speed of the UE, and the speed information may be the moving speed of the UE, moving state information used for indicating the moving state of the UE, or state indication information used for indicating whether the UE is in a high-speed moving state;
specifically, the UE may directly use the estimated moving speed value as the speed information; the UE may also determine its own moving state (high-speed movement, medium-speed movement, or low-speed movement) according to the estimated moving speed value, and use moving state information indicating the moving state of the UE as speed information; the UE may also determine its own moving state (high-speed movement, medium-speed movement, or low-speed movement) according to the evaluated value of the moving speed, and use state indication information indicating whether the UE is in high-speed movement as the speed information.
Further, the UE determines its own moving state according to the estimated moving speed value, including: if the numerical value of the moving speed is smaller than a set first threshold value, the UE determines that the moving state of the UE is low-speed moving; if the numerical value of the moving speed is not less than the first threshold value and not more than a set second threshold value, the UE determines that the moving state of the UE is medium-speed moving; if the numerical value of the moving speed is larger than the second threshold value, the UE determines that the moving state of the UE is high-speed moving; wherein the first threshold is less than the second threshold.
In case two, if the MSE or the enhanced MSE is used, the evaluation result is the moving state of the UE (i.e. high-speed movement, medium-speed movement, or low-speed movement), and the speed information may be moving state information indicating the moving state of the UE or state indication information indicating whether the UE is in a high-speed moving state.
Specifically, the UE determines, according to the estimated movement state (high-speed movement, medium-speed movement, or low-speed movement), movement state information indicating the movement state of the UE or state indication information indicating whether the UE is in high-speed movement, and uses the determined movement state information or state indication information as the speed information.
In an implementation, as a preferred embodiment, if the measurement configuration information configured by the base station for the UE includes an inter-frequency measurement, in step 32, the UE evaluates its moving speed, and further includes:
and when the UE determines that the UE is in a high-speed moving state, the UE does not execute pilot frequency measurement.
Specifically, if the current UE does not perform the inter-frequency measurement, the UE does not perform the inter-frequency measurement any more when determining that the UE is in the high-speed moving state; if the current UE already executes the pilot frequency measurement, the UE actively stops the pilot frequency measurement when determining that the UE is in a high-speed moving state.
In another implementation manner, if the measurement configuration information configured by the base station for the UE includes the inter-frequency measurement, and the base station determines that the UE is in the high-speed moving state according to the speed information reported by the UE, the base station reconfigures the measurement configuration information for the UE, does not include the inter-frequency measurement in the reconfigured measurement configuration information, and sends the reconfigured measurement configuration information to the UE;
specifically, when determining that the UE is in the high-speed moving state, the base station deletes the inter-frequency measurement in the measurement configuration information configured for the UE before, and sends the reconfigured measurement configuration information to the UE.
Correspondingly, after receiving the reconfigured measurement configuration information sent by the base station, the UE performs measurement and reports according to the reconfigured measurement configuration information.
In practice, the method further comprises:
the UE reports the type of the target cell switched by the UE to the base station, so that the base station can know whether the type of the target cell switched by the UE is a small cell.
Specifically, the UE may actively report the type of the target cell for handover to the base station, or may report the type of the target cell for handover to the base station after receiving the indication from the base station.
In implementation, after the UE performs measurement reporting to the base station, the method further includes:
and when the UE determines that the self moving state changes, reporting the self current speed information to the base station.
Specifically, after the UE sends the measurement report message to the base station, the UE continues to evaluate its own moving speed, and reports its own current moving state to the base station when it is determined that its own moving state changes; correspondingly, after receiving the latest moving state reported by the UE, the base station updates the speed information of the UE stored by the base station, so that the base station can make a judgment according to the current latest moving state of the UE, and the base station is prevented from making an erroneous judgment according to the moving state of the UE reported last time.
Preferably, the method further comprises:
and the UE reports auxiliary information for assisting the base station to judge whether the base station is in a high-speed moving state to the base station.
Specifically, the UE may carry the auxiliary information in a measurement report message sent to the base station, or may report the auxiliary information to the base station through signaling interaction with the base station; preferably, the UE carries the assistance information in a measurement report message sent to the base station.
Preferably, the auxiliary information includes, but is not limited to, one or a combination of the following information: the movement track information of the UE and the channel quality change rate measured by the UE.
Further, the movement track information of the UE includes information of a cell through which the UE passes and a staying time in each cell, so that the movement speed of the UE in the cell can be calculated according to the coverage radius of the cell and the staying time of the UE in the cell.
It should be noted that, the moving speed of the UE in the cell through which the UE passes may be calculated according to the moving trajectory information, so as to determine whether the UE is in a high-speed moving state according to the calculated moving speed; since the greater the channel quality change rate, the faster the UE moves, it may be determined whether the UE is in a high-speed moving state according to the channel quality change rate, for example, when the channel quality change rate is higher than a set threshold, it is determined that the UE is in the high-speed moving state, otherwise, it is determined that the UE is not in the high-speed moving state.
Based on the above embodiment, the present invention further provides a processing method for measurement report, as shown in fig. 4, the method includes the following steps:
step 41, the base station sends indication information to the UE, wherein the indication information is used for indicating that the UE carries information related to the moving speed of the UE when performing measurement report;
step 42, the base station receives a Measurement Report (Measurement Report) message sent by the UE, where the Measurement Report message carries current speed information of the UE, and the speed information is determined by the UE according to a current evaluation result of the self-moving speed;
and step 43, the base station judges whether the UE performs the switching according to the speed information and the type of the target cell to which the UE performs the switching.
In the implementation, in step 41, the base station sends, to the UE, indication information for indicating that the UE carries information related to its own moving speed when performing measurement reporting, which includes the following two ways:
in the first mode, a base station sends measurement configuration information to UE, and the measurement configuration information carries indication information used for indicating that the UE carries information related to the self moving speed when measurement reporting is carried out;
since the first mode of the base station side is the same as the mode a of the user equipment side, please refer to the description of the mode a, which is not described herein again.
Secondly, the base station sends indication information used for indicating the UE to carry information related to the self moving speed when the UE carries out measurement report to the UE through a high-level signaling;
since the second mode of the base station side is the same as the mode B of the user equipment side, please refer to the description of the mode B, which is not described herein again.
In the embodiment of the present invention, the speed information carried in the measurement report message may be a moving speed of the UE, moving state information of the UE, or state indication information used for indicating whether the UE is in a high-speed moving state, which is specifically referred to the description of the user equipment side and is not described herein again.
In step 43, the base station determines whether the UE performs the handover according to the speed information and the type of the target cell to which the UE performs the handover, including:
and when the base station determines that the UE is in a high-speed moving state and the type of the target cell for switching is small, the base station judges that the UE does not perform the switching.
Further, when the base station determines that the UE is not in the high-speed moving state or the type of the target cell to which the UE performs handover is not a small cell, the base station determines that the UE performs the handover, and initiates a handover process to the UE.
It should be noted that, the base station in the embodiment of the present invention is a base station where a current serving cell (e.g., a macro cell) of the UE is located; the small cell described in the embodiment of the present invention is a cell with a small coverage area, that is, a cell with a coverage radius smaller than a set threshold, where the threshold is an empirical value and can be set as needed, for example, if the threshold is 20 meters, all cells with a coverage radius smaller than 20 meters are small cells.
Further, the base station judges whether the UE is currently in a high-speed moving state according to the speed information carried in the received measurement report message.
For example, if the speed information is the moving speed of the UE, the base station determines that the UE is not in a high-speed moving state when determining that the value of the moving speed is not greater than a set speed threshold; when the base station determines that the value of the moving speed is larger than the speed threshold value, determining that the UE is in a high-speed moving state;
if the speed information is the moving state information of the UE, the base station determines that the UE is in a high-speed moving state when determining that the moving state information represents high-speed moving; when the base station determines that the movement state information represents medium-speed movement or low-speed movement, determining that the UE is not in a high-speed movement state;
and if the speed information is the state indication information, the base station determines whether the UE is in a high-speed moving state or not according to the state indication information.
Preferably, the method further comprises:
and the base station receives auxiliary information which is reported by the UE and used for assisting the UE to judge whether the UE is in a high-speed moving state.
Specifically, the UE may carry the auxiliary information in the measurement report message, or may report the auxiliary information to the base station through signaling interaction with the base station.
Further, the base station determining whether the UE is currently in a high-speed moving state includes:
and the base station judges whether the UE is in a high-speed moving state currently or not according to the speed information carried in the measurement report message and the auxiliary information reported by the UE.
Specifically, if the base station determines that the UE is in the high-speed moving state according to the speed information and also determines that the UE is in the high-speed moving state according to the auxiliary information, the base station determines that the UE is in the high-speed moving state;
and if the base station determines that the UE is in the high-speed moving state according to the speed information and determines that the UE is not in the high-speed moving state according to the auxiliary information, the base station determines that the UE is not in the high-speed moving state.
Preferably, the auxiliary information reported by the UE includes, but is not limited to, one or a combination of the following information: the moving track information of the UE and the channel quality change rate measured by the UE.
Further, the movement track information includes information of a cell through which the UE passes and a staying time in each cell, so that the base station can calculate the moving speed of the UE in the cell according to the coverage radius of the cell and the staying time of the UE in the cell.
In implementation, if the auxiliary information includes movement track information of the UE, the base station may calculate a moving speed of the UE in a cell through which the UE passes according to the movement track information, so as to determine whether the UE is in a high-speed moving state;
if the assistance information includes a channel quality change rate measured by the UE, the base station may determine whether the UE is in a high-speed moving state according to the channel quality change rate, for example, when the channel quality change rate is higher than a set threshold, it is determined that the UE is in the high-speed moving state, otherwise, it is determined that the UE is not in the high-speed moving state.
In an implementation, after receiving the measurement report message sent by the UE, the base station further includes:
and the base station receives the speed information reported by the UE when the UE determines that the self moving state changes.
Further, the base station determining whether the UE is currently in a high-speed moving state includes:
and the base station judges whether the UE is in a high-speed moving state currently or not according to the latest speed information reported by the UE.
Specifically, after receiving the latest moving state reported by the UE, the base station updates the speed information of the UE stored in the base station, so that the base station can make a decision according to the current latest moving state of the UE, thereby avoiding the base station making an erroneous decision according to the moving state of the UE reported last time.
In implementation, the base station may learn the type of the target cell to which the UE performs handover by any one of the following manners:
a base station acquires the type of a target cell switched by UE (user equipment) through the pre-configuration of an Operation Administration and Maintenance (OAM) entity;
or the base station acquires the type of a target cell switched by the UE through signaling interaction between the base stations;
or the base station obtains the type of the target cell switched by the UE through the report of the UE.
In implementation, after the base station determines that the UE is in the high-speed moving state, the method further includes:
if the measurement configuration information configured by the base station for the UE includes the inter-frequency measurement, the base station reconfigures the measurement configuration information for the UE, and the reconfigured measurement configuration information does not include the inter-frequency measurement.
Specifically, when determining that the UE is in the high-speed moving state, the base station deletes the inter-frequency measurement in the measurement configuration information configured for the UE before, and sends the reconfigured measurement configuration information to the UE.
Further, if the measurement configuration information configured by the base station for the UE does not include the inter-frequency measurement, the base station does not configure the inter-frequency measurement for the UE.
The following two specific embodiments are combined to describe the method for reporting measurement provided by the present invention in detail.
In a first embodiment, a current serving cell (i.e., a macro cell) of the UE and a small cell (pico cell) that needs to be handed over are co-frequency cells, and a network architecture is shown in fig. 5, where the UE moves towards the small cell under the coverage of the macro cell.
In this embodiment, the processes of performing measurement reporting and processing measurement reporting are as follows:
firstly, a base station where a macro cell is located configures speed information of the UE in measurement report;
specifically, the base station may carry 1-bit indication information in the measurement configuration information configured for the UE to indicate whether the UE needs to carry its own speed information in the measurement report; the base station can also indicate whether the UE needs to carry the speed information of the UE in the measurement report through a high-level signaling.
Then, after receiving the indication from the base station, the UE evaluates its own moving speed according to the MSE, and assumes that the evaluation result is high speed (i.e., the UE is in a high-speed moving state). Then, since the UE approaches the small cell, the UE meets the measurement reporting condition (for example, an a3 event, the channel quality of the small cell is higher than that of the currently serving macro cell), and reports the measurement result, and carries its own speed information in the measurement reporting message, where the speed information is high speed.
Further, the UE may also carry information such as its own moving trajectory (e.g., whether the moving trajectory is close to the center of the pico cell), the measured change rate of the channel quality of the pico cell, and the like in the measurement report message, so as to assist the base station in making the decision.
Finally, after receiving the measurement report information of the UE, the base station determines that the UE is currently in a high-speed moving state, and finds that the type of the target cell to be switched by the UE is a small cell (the type information of the target cell is OAM pre-configured to the base station), the base station determines that the UE does not perform the switching. In this way, the UE is still served by the macro cell.
Further, the base station may also determine whether the UE is in a high-speed moving state in combination with the assistance information.
In the second embodiment, the current serving cell (i.e. the macro cell) of the UE and the small cell that needs to be handed over are inter-frequency cells, and the network structure is similar to the first embodiment except that the macro cell and the small cell are inter-frequency cells (e.g. the macro cell frequency is f1, the small cell frequency is f2, and f1 ≠ f 2). The UE moves towards the small cell under the macro cell coverage.
In this embodiment, the processes of performing measurement reporting and processing measurement reporting are as follows:
firstly, a base station where a macro cell is located configures speed information of the UE in measurement report;
specifically, the base station may carry 1-bit indication information in the measurement configuration information configured for the UE to indicate whether the UE needs to carry its own speed information in the measurement report; the base station can also indicate whether the UE needs to carry the speed information of the UE in the measurement report through a high-level signaling.
Then, after receiving the indication from the base station, the UE evaluates its own moving speed according to the MSE, and assumes that the evaluation result is high speed (i.e., the UE is in a high-speed moving state). And then if the measurement reporting condition is met (for example, an a2 event, the channel quality of the current serving macro cell is lower than a threshold), the UE reports the measurement result, and carries its own speed information in the measurement reporting message, where the speed information is high speed.
Finally, after receiving the measurement report information of the UE, the base station judges that the UE is currently in a high-speed moving state, and the base station does not configure pilot frequency measurement for the UE or deletes the pilot frequency measurement configured for the UE before so as to achieve the purpose of saving electricity; or when the UE judges that the UE is high speed, the configured pilot frequency measurement is actively stopped. Further, if the base station finds that the type of the target cell to be switched by the UE is a small cell (the type information of the target cell is OAM pre-configured to the base station), the base station determines that the UE does not perform the switching. In this way, the UE is still served by the macro cell.
The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.
Based on the same inventive concept, the embodiment of the present invention further provides a device for measurement reporting, and because the principle of the device for solving the problem is similar to the method for measurement reporting, the implementation of the device may refer to the implementation of the method, and repeated details are not repeated.
Referring to fig. 6, an apparatus for performing measurement reporting according to an embodiment of the present invention includes:
a receiving module 61, configured to receive indication information sent from a base station, where the indication information is used to indicate that the self carries information related to the self moving speed when performing measurement reporting;
a speed evaluation module 62 for evaluating the moving speed of the mobile terminal;
a reporting module 63, configured to perform measurement reporting to the base station when it is determined that the measurement reporting condition is met, and carry current speed information of the base station in a measurement report message, where the speed information is determined according to a current evaluation result of the mobile speed of the base station.
Preferably, the speed information may be a moving speed of the UE, moving state information of the UE, or state indication information indicating whether the UE is in a high-speed moving state.
Further, the receiving module 61 is specifically configured to:
receiving measurement configuration information sent by a base station, wherein the measurement configuration information carries the indication information; or,
and receiving indication information sent by the base station through high-level signaling.
Further, the speed evaluation module 62 is specifically configured to:
and evaluating the self moving speed by adopting a moving state evaluation MSE mode, a global positioning system GPS speed measurement mode or an enhanced MSE mode.
Further, the speed evaluation module 62 is also configured to:
if the measurement configuration information configured for the base station comprises pilot frequency measurement, the pilot frequency measurement is not executed when the base station is determined to be in a high-speed moving state.
Further, the reporting module 63 is further configured to:
and reporting the type of the target cell which is switched to the base station.
Further, the speed evaluation module 62 is also configured to:
and when the change of the self moving state is determined, reporting the self current speed information to the base station.
Further, the reporting module 63 is further configured to:
and reporting auxiliary information for assisting the base station to judge whether the base station is in a high-speed moving state to the base station.
Preferably, the auxiliary information includes, but is not limited to, one or a combination of the following information: the movement track information of the UE and the channel quality change rate measured by the UE.
Based on the same inventive concept, the embodiment of the present invention further provides a device for performing measurement report processing, and since the principle of the device for solving the problem is similar to the method for performing measurement report processing, the implementation of the device may refer to the implementation of the method, and repeated details are not repeated.
Referring to fig. 7, an apparatus for performing measurement reporting processing according to an embodiment of the present invention includes:
a sending module 71, configured to send indication information to the UE, where the indication information is used to indicate that the UE carries information related to its own moving speed when performing measurement reporting;
a receiving module 72, configured to receive a measurement report message sent by the UE, where the measurement report message carries current speed information of the UE, and the speed information is determined by the UE according to a current evaluation result of a moving speed of the UE;
and the processing module 73 is configured to determine whether the UE performs the handover according to the speed information and the type of the target cell to which the UE performs the handover.
Preferably, the speed information may be a moving speed of the UE, moving state information of the UE, or state indication information indicating whether the UE is in a high-speed moving state.
Further, the sending module 71 is specifically configured to:
sending measurement configuration information to the UE, wherein the indication information is carried in the measurement configuration information; or,
and sending the indication information to the UE through higher layer signaling.
Further, the processing module 73 is specifically configured to:
and when the UE is determined to be in a high-speed moving state and the type of the target cell for switching is small, judging that the UE does not perform the switching.
Further, the processing module 73 is specifically configured to:
and judging whether the UE is in a high-speed moving state currently or not according to the speed information.
Further, the receiving module 72 is further configured to: receiving auxiliary information reported by UE for assisting the UE to judge whether the UE is in a high-speed moving state;
the processing module 73 is further configured to: and judging whether the UE is in a high-speed moving state currently or not according to the speed information and the auxiliary information.
Preferably, the auxiliary information includes, but is not limited to, one or a combination of the following information: the movement track information of the UE and the channel quality change rate measured by the UE.
Further, the processing module 73 is specifically configured to:
acquiring the type of a target cell switched by the UE through the pre-configuration of an operation, administration and maintenance OAM entity; or
Acquiring the type of a target cell switched by the UE through signaling interaction between base stations; or
And through the report of the UE, the type of the target cell switched by the UE is obtained.
Further, the processing module 73 is further configured to:
if the measurement configuration information configured for the UE by itself contains pilot frequency measurement, after the UE is determined to be in a high-speed moving state, the measurement configuration information is reconfigured for the UE, and the reconfigured measurement configuration information does not contain pilot frequency measurement.
Further, the receiving module 72 is further configured to: after receiving a measurement report message sent by UE, receiving speed information reported by the UE when the UE determines that the self mobile state changes;
the processing module 73 is further configured to: and judging whether the UE is in a high-speed moving state currently or not according to the latest speed information reported by the UE.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.