CN112996039B - Inter-system measurement method and device - Google Patents
Inter-system measurement method and device Download PDFInfo
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- CN112996039B CN112996039B CN202110163062.4A CN202110163062A CN112996039B CN 112996039 B CN112996039 B CN 112996039B CN 202110163062 A CN202110163062 A CN 202110163062A CN 112996039 B CN112996039 B CN 112996039B
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Abstract
The application provides a different system measurement method and equipment. The method comprises the following steps: acquiring a frequency point to be processed from a frequency point scheduling queue, wherein the frequency point scheduling queue comprises a plurality of pre-configured frequency points; if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and the scheduling times of the frequency point to be processed and a preset frequency point sequencing period meet a preset condition, updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (interference cancellation system) search result of the first cell; and measuring or ICS the frequency points in the updated frequency point scheduling queue. The UE can generate a measurement report in a short time and report the measurement report to the gNodeB, so that the UE is quickly switched to a 4G system to obtain voice service, and the user experience is improved.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for inter-system measurement.
Background
When a New Radio (NR) of 5G does not provide a voice service, for a UE registered in a Core network of 5G (5G Core network, abbreviated as 5 GC) under an independent network (standard, abbreviated as SA), the UE may obtain a voice service from a 4G System by using an Evolved Packet System fallback (EPS fallback). Before the UE is switched to the 4G system, the frequency point issued by the base station needs to be measured.
In the prior art, after receiving a plurality of frequency points issued by a base station, a UE performs a first Cell Search (ICS for short) on unsynchronized frequency points by using three gain steps in turn. Specifically, referring to fig. 1, the first round: setting gain gear as mid gain, and performing ICS according to frequency point sequence f0, f1, \8230;, fK-1; and a second round: setting a gain gear as High gain for the frequency points which do not Search the first Cell, carrying out ICS on the frequency points which do not Search the first Cell by using the High gain, and starting Measurement (MEAS) and Neighbor Cell Search (NCS) for the frequency points which Search the first Cell in the previous round; a third wheel: and setting a gain gear to be Low gain for the frequency points of the first unsearched cell, performing ICS on the frequency points of the first unsearched cell by using High gain, and starting MEAS and NCS for the frequency points of the first arched cell in the previous round.
However, referring to fig. 1, the UE spends most of the gap on ICS, while the gaps for MEAS and NCS are few, making it difficult to report measurement reports within a defined time.
Disclosure of Invention
The application provides a method and equipment for measuring a heterogeneous system, which are used for solving the problem that the prior art is difficult to report a measurement report within a limited time.
In a first aspect, the present application provides a method for inter-system measurement, including: acquiring a frequency point to be processed from a frequency point scheduling queue, wherein the frequency point scheduling queue comprises a plurality of pre-configured frequency points; if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and the scheduling times of the frequency point to be processed and the preset frequency point sequencing period meet the preset conditions, updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (interference cancellation system) result of the first cell search; and measuring or ICS the frequency points in the updated frequency point scheduling queue.
Optionally, the updating, according to the measurement result of each frequency point in the frequency point scheduling queue and/or the result of searching for the ICS in the first cell, the sequence of each frequency point in the frequency point scheduling queue includes: respectively acquiring a frequency point with a measurement result, a frequency point with an ICS result and a frequency point without the ICS result from the frequency point scheduling queue; and sequencing the frequency point with the measurement result, the frequency point with the ICS result and the frequency point without the ICS result in sequence so as to update the sequence of each frequency point in the frequency point scheduling queue.
Optionally, before the frequency point with measurement result, the frequency point with ICS result, and the frequency point without ICS result are sequentially sequenced, where the number of the frequency points with measurement result is greater than 1, and the number of the frequency points with ICS result is greater than 1, the method further includes: sequencing the frequency points with the measurement results from large to small according to the measurement results; and sequencing the frequency points with the ICS result from large to small according to the ICS result.
Optionally, determining whether a preset condition is met between the scheduling times of the frequency points to be processed and a preset frequency point sequencing period includes: performing modulus operation on the scheduling times of the frequency points to be processed and the preset frequency point sequencing period to obtain a first modulus result; judging whether the first modulus taking result is equal to zero or not; and if so, determining that the preset condition is met between the scheduling times of the frequency points to be processed and the preset frequency point sequencing period.
Optionally, the method further includes: judging whether the frequency point to be processed has an ICS result; if the frequency point to be processed has an ICS result, measuring the frequency point to be processed to obtain a measurement result of the frequency point to be processed, and adding 1 to the scheduling times of the frequency point to be processed; if the frequency point to be processed has no ICS result, determining a gain gear according to the scheduling times of the frequency point to be processed; and performing ICS on the frequency point to be processed according to the gain gear to obtain an ICS result of the frequency point to be processed, and adding 1 to the scheduling times of the frequency point to be processed.
Optionally, the determining a gain gear according to the scheduling times of the frequency points to be processed includes: determining the ICS scheduling times of the frequency point to be processed according to the scheduling times of the frequency point to be processed and a preset ICS scheduling period; judging whether the ICS scheduling times of the frequency point to be processed is smaller than a preset gain gear number or not; if the ICS scheduling frequency of the frequency point to be processed is smaller than the preset gain gear number, determining a gain gear index according to the scheduling frequency of the frequency point to be processed and the preset gain gear number; and determining the gain gear according to the gain gear index.
Optionally, the method further includes: and if the ICS scheduling frequency of the frequency point to be processed is greater than or equal to the preset gain gear number, adding 1 to the scheduling frequency of the frequency point to be processed.
Optionally, the determining the gain step index according to the scheduling times of the frequency points to be processed and the preset gain step number includes: and performing modulus operation on the scheduling times of the frequency points to be processed and the preset gain gear number to obtain the gain gear index.
In a second aspect, the present application provides an inter-system measurement apparatus, including: the acquisition module is used for acquiring the frequency points to be processed from a frequency point scheduling queue, wherein the frequency point scheduling queue comprises a plurality of pre-configured frequency points; the updating module is used for updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (interference cancellation system) search result of the first cell if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and the scheduling times of the frequency point to be processed and the preset frequency point sequencing period meet preset conditions; and the measurement module is used for measuring the frequency points in the updated frequency point scheduling queue or ICS.
In a third aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method as provided in the first aspect above.
In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, which computer program, when executed by a processor, implements the method provided by the first aspect described above.
In a fifth aspect, the present application provides a chip comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to implement the method provided by the first aspect above via execution of the executable instructions.
In a sixth aspect, the present application provides a terminal device, including the chip provided in the fifth aspect.
According to the inter-system measurement method and the inter-system measurement equipment, on one hand, two gears are arranged in the gain gear table. Compared with the prior art that ICS is carried out by using three gears of mid gain, high gain and low gain, the number of the gap used for ICS is reduced, and the gap used for measurement is increased; on the other hand, after two rounds of processing are carried out by using mid gain and high gain, the sequence of each frequency point in the frequency point scheduling queue is updated according to the measurement result and/or ICS result of each frequency point in the frequency point scheduling queue, so that more gap is used for measurement; on the other hand, for ICS using mid gain and high gain, the frequency point of the first cell is not searched, ICS is not performed on the frequency point, gap is used for measuring other frequency points with detected cells, and the measuring times of some frequency points before the Event B trigger point can reach a preset value, so that the UE can generate a measuring report in a short time and report the measuring report to the gNodeB, the UE is rapidly switched to a 4G system to obtain voice service, and user experience is improved.
Drawings
Fig. 1 is a first schematic diagram of frequency point scheduling provided in the present application;
fig. 2 is a schematic flowchart of a first embodiment of a inter-system measurement method provided in the present application;
fig. 3 is a flowchart illustrating a second embodiment of a inter-system measurement method provided in the present application;
fig. 4 is a schematic diagram of frequency point scheduling provided in the present application;
fig. 5 is a schematic structural diagram of an inter-system measurement apparatus provided in the present application;
fig. 6 is a schematic diagram of a hardware structure of a chip provided by the present invention.
Detailed Description
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "is a relationship generally indicating that the former and latter associated objects are an" or ". "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a alone, b alone, c alone, a and b combination, a and c combination, b and c combination, or a, b and c combination, wherein a, b and c can be single or multiple.
When the 5G system does not provide voice service, the UE registered under the 5G 5GC under the SA can obtain the voice service to the 4G system by adopting an EPS fallback mode. Specifically, after the UE sends an INVITE message to the 5GC to request establishment of a Voice session, a base station (NR NodeB, abbreviated to gsnodeb) in the 5G system sends a RRCReconfiguration message to the UE, where the message carries a B1 measurement event, a measurement frequency point table, and measurement gap configuration, the UE replies a RRCReconfiguration complete to the gsnodeb and simultaneously starts inter-system measurement, and after the UE generates a measurement report, the UE reports the measurement report to the gsnodeb to trigger switching to the 4G system, and after the switching is successful, the UE may initiate Tracking Area Update (TAU) in the 4G system, so as to establish a Long Term Evolution Voice bearer (vovice Long-Term Evolution, abbreviated to lte) service. In the inter-system measurement process, the physical layer needs to perform first Cell Search (ICS for short) and measurement on each frequency point, and report the measurement result to the protocol stack, the protocol stack will evaluate the measurement result of each frequency point during the TimeToTrigger, and if some frequency points satisfy the threshold in the B1 measurement event, a measurement report is generated and reported to the nodeb. However, there is a strict time limit from the time when the UE receives the RRCReconfiguration message to the time when the measurement report is reported, for example, in the case of the cmsc outfield EPSfallback test, there is usually only 2 seconds, and how to complete the ICS and the measurement within the limited time is a problem to be solved at present.
In the prior art, a physical layer of a UE performs ICS and measurement on frequency points in a frequency point alternating manner, and as shown in fig. 1, it is assumed that there are K frequency points in a measurement frequency point table sent by a nodeb to the UE, and since the signal strength of the K frequency points is unknown, in order to cover signals within various strength ranges, three gain gears mid, high gain, and low gain are used to perform ICS on the K frequency points in turn. Specifically, referring to fig. 1, the first round: setting gain gear as mid gain, and performing ICS according to frequency point sequence f0, f1, \8230;, fK-1; and a second round: setting a gain gear as High gain for the frequency points which do not Search the first Cell, carrying out ICS on the frequency points which do not Search the first Cell by using the High gain, and starting Measurement (MEAS) and Neighbor Cell Search (NCS) for the frequency points which Search the first Cell in the previous round; and a third round: and setting a gain gear as Low gain for the frequency points of the first unsearched cells, performing ICS on the frequency points of the first unsearched cells by using the Low gain, and starting MEAS and NCS for the frequency points of the first unsearched cells in the previous round. However, the UE spends most of the gap on ICS, and the gap for MEAS and NCS is very small, if N times (N > = 2) L1 smoothing is performed on the measurement result of the physical layer, that is, for any frequency point, the physical layer needs to report at least 2 times of measurement result before the Event B trigger point, the protocol stack evaluates the at least 2 times of measurement result, and the measurement report can only be generated when the at least 2 times of measurement result satisfy the threshold in the B1 measurement Event, as shown in fig. 1, the measurement times of all frequency points cannot meet the requirement, and the measurement report is difficult to report in the prior art manner within the limited time.
In order to solve the technical problem, the present application provides a method for measuring inter-system, after receiving a rrcreeconfiguration message sent by a nodeb, a UE first uses mid gain to sequentially perform ICS on each frequency point in a frequency point scheduling queue, then uses high gain to perform ICS on a frequency point in the frequency point scheduling queue where a first cell is not searched, and measures a frequency point in the frequency point scheduling queue where the first cell is searched. After the two processing procedures are finished, updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result and/or ICS result of each frequency point in the frequency point scheduling queue, specifically, arranging the frequency points with the measurement result in the frequency point scheduling queue in front, arranging the frequency points with the ICS result in the middle, arranging the frequency points without the ICS result in the end, thereby obtaining an updated frequency point scheduling queue, and finally measuring or ICS the frequency points in the updated frequency point scheduling queue. Due to the fact that the method updates the sequence of each frequency point in the frequency point scheduling queue, more gap is used for measurement, the measurement times of some frequency points before the Event B trigger point can reach the preset value, the UE can generate a measurement report in a short time and report the measurement report to the gNodeB, the UE can be rapidly switched to the 4G system to obtain voice service, and user experience is improved.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 2 is a schematic flowchart of a first embodiment of a inter-system measurement method provided in the present application. The inter-system measurement method provided by the embodiment may be performed by a physical layer of the UE. The inter-system measurement method provided by the embodiment comprises the following steps:
s201, obtaining the frequency point to be processed from the frequency point scheduling queue.
The frequency point stored in the frequency point scheduling queue is the frequency point contained in the measurement frequency point table carried in the RRCReconfiguration message issued by the gnnodeb.
S202, judging whether the frequency point to be processed has an ICS result.
Judging whether the frequency points to be processed have the ICS result can be understood as judging whether the frequency points to be processed are synchronized, the frequency points to be processed have the ICS result indicating that the frequency points to be processed are synchronized, and the frequency points to be processed do not have the ICS result indicating that the frequency points to be processed are not synchronized. The ICS result is the synchronization signal correlation peak of the first cell.
If the frequency point to be processed has the ICS result, executing S203; if the pending frequency point has no ICS result, executing S204-S205.
And S203, measuring the frequency point to be processed to obtain a measurement result of the frequency point to be processed.
And after the physical layer obtains the measurement result of the frequency point to be processed, reporting the measurement result to a protocol stack. And evaluating the frequency points to be processed by the protocol stack according to the measurement result. The process of the physical layer measuring the frequency point to be processed can refer to the prior art, and this embodiment is not described again.
And S204, determining a gain gear according to the scheduling times of the frequency points to be processed.
Optionally, the scheduling times of the ICS of the frequency points to be processed can be determined according to the scheduling times of the frequency points to be processed and a preset ICS scheduling period; judging whether the ICS scheduling times of the frequency points to be processed are smaller than a preset gain gear number or not; if the ICS scheduling times of the frequency points to be processed are smaller than the preset gain gear number, determining a gain gear index according to the scheduling times of the frequency points to be processed and the preset gain gear number; and determining a gain gear according to the gain gear index. If the number of scheduling ICS of the frequency point to be processed is greater than or equal to the preset number of gain gears, execute S206.
Alternatively, the gain step index may be determined by: and performing modulus operation on the scheduling times of the frequency points to be processed and a preset gain gear number, wherein the operation result is the gain gear index.
S205, according to the gain gear, performing ICS on the frequency point to be processed to obtain an ICS result of the frequency point to be processed.
And S206, adding 1 to the scheduling times of the frequency points to be processed.
S207, judging whether the frequency point to be processed is the last frequency point in the frequency point scheduling queue or not, and whether the scheduling times of the frequency point to be processed and the preset frequency point sequencing period meet preset conditions or not.
And if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and the scheduling times of the frequency point to be processed and the preset frequency point sequencing period meet the preset condition, executing S208, and if the frequency point to be processed is not the last frequency point in the frequency point scheduling queue, executing S209.
Optionally, performing a modulus operation on the scheduling times of the frequency points to be processed and a preset frequency point sequencing period to obtain a first modulus result; judging whether the first modulus-taking result is equal to zero or not; and if so, determining that the preset condition is met between the scheduling times of the frequency points to be processed and the preset frequency point sequencing period.
S208, updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (Internet connection sharing) searching result of the first cell.
Optionally, the frequency point with the measurement result, the frequency point with the ICS result, and the frequency point without the ICS result are obtained from the frequency point scheduling queue, respectively; and sequencing the frequency points with the measurement results, the frequency points with the ICS results and the frequency points without the ICS results in sequence to update the sequence of each frequency point in the frequency point scheduling queue.
Optionally, for the frequency points with the measurement results, sorting the frequency points from large to small according to the measurement results; and for the frequency points with the ICS results, sequencing the frequency points from large to small according to the ICS results.
S209, acquiring the next frequency point of the frequency points to be processed in the frequency point scheduling queue, taking the next frequency point of the frequency points to be processed as the frequency point to be processed, and executing the processing of S202-S209.
It should be noted that: and when the judgment result of the step S207 is yes, the next frequency point of the frequency points to be processed is the first frequency point in the updated frequency point scheduling queue.
In the inter-system measurement method provided by this embodiment, since the sequence of each frequency point in the frequency point scheduling queue is updated by the method provided by this embodiment, more gap is used for measurement, and the measurement times of some frequency points before the Event B trigger point can reach the preset value, so that the UE can generate a measurement report in a shorter time and report the measurement report to the gsnodeb, so that the UE can be quickly switched to a 4G system to obtain a voice service, and user experience is improved.
Fig. 3 is a flowchart illustrating a second embodiment of the inter-system measurement method provided in the present application. Also, the inter-system measurement method provided by this embodiment may be performed by the physical layer of the UE. The physical layer may define several parameters as follows:
gain gear table: g _ gain _ table [2];
and (3) scheduling queues at frequency points: g _ freq _ scheduled _ queue [ K ], wherein K is the number of frequency points;
frequency point scheduling times: g _ freq _ scheduled _ cnt [ K ], counting the scheduling times of each frequency bin.
ICS scheduling period: ICS _ SCH _ PERIOD.
Gain gear number: MAX _ AGC _ GAIN _ NUM;
and the frequency point sequencing PERIOD is SORT _ PERIOD.
In the case of an external field, in consideration of signal path loss, a strong field signal is generally between-55dBm \/15khz and-95dBm \/15khz, and a weak field signal is generally between-95dBm \/15khz and-128dBm \/15khz. The present embodiment provides two gears in the gain gear table. Compared with the prior art that three gears of mid gain, high gain and low gain are used for ICS, the number of the gap used for ICS is reduced, and the gap used for measurement is increased, so that the UE can generate a measurement report in a short time and report the measurement report to the gNodeB.
As shown in fig. 3, the inter-system measurement method provided in this embodiment includes:
s301, initializing parameters.
After receiving the rrcreeconfiguration message sent by the gsnodeb, the UE initializes the above parameters, and after initialization, the values of the parameters are:
gain gear table: g _ gain _ table [2] = [ mid gain, high gain ];
and (3) scheduling queues at frequency points: g _ freq _ sched _ queue [ K ] = [ f0, f1, f2, \ 8230 ], fK-1] and K is the number of frequency points; f0, f1, f2, \ 8230, fK-1 is the frequency point contained in the measurement frequency point table carried in the RRCReconfiguration message.
Frequency point scheduling times: g _ freq _ scheduled _ cnt [ K ] = [0, \ 8230;, 0], counting the number of schedules per bin.
ICS scheduling period: ICS _ SCH _ PERIOD =3 (the embodiment takes 3 as an example, and can be adjusted according to actual conditions).
Gain gear number: MAX _ AGC _ GAIN _ NUM =2 (in the embodiment, 2 is taken as an example, and may be adjusted according to the actual situation).
The frequency bin ordering PERIOD is SORT _ PERIOD =2 (in this embodiment, take 2 as an example, which can be adjusted according to actual conditions).
S302, obtaining the frequency point to be processed from the frequency point scheduling queue.
The acquisition in this embodiment refers to polling acquisition, that is, a first frequency point in a frequency point scheduling queue is acquired first, and the processing process in this embodiment is executed with the first frequency point as a frequency point to be processed. Then, the second frequency point in the frequency point scheduling queue is obtained, and the processing procedure of this embodiment is executed with the second frequency point as the frequency point to be processed. And so on. After the last frequency point is used as the frequency point to be processed to execute the processing process of the embodiment, if the measurement is still needed to be continued, the first frequency point in the frequency point scheduling queue is continuously obtained, and the processing process of the embodiment is executed by using the first frequency point as the frequency point to be processed.
The frequency points to be processed in fig. 3 are represented by g _ frequency _ scheduled _ queue [ k ].
And S303, judging whether the frequency points to be processed are not synchronous.
If the frequency points to be processed are synchronized, executing S304-S305; if the frequency points to be processed are not synchronized, executing S306-S309.
S304, measuring and searching adjacent regions of the frequency point to be processed to obtain the measuring result of the frequency point to be processed.
S305, reporting the measurement result of the frequency point to be processed to a protocol stack.
S306, determining the ICS scheduling times of the frequency points to be processed according to the scheduling times of the frequency points to be processed and the preset ICS scheduling period.
As shown in fig. 3, performing modulo operation on the scheduling frequency of the frequency point to be processed and the preset ICS scheduling period, and taking the operation result as the ICS scheduling frequency of the frequency point to be processed. In FIG. 3, the ICS scheduling times of the frequency points to be processed are represented by ICS _ sch _ cnt, and the modulo operation is represented by%.
S307, judging whether the ICS scheduling times of the frequency points to be processed are smaller than a preset gain gear number.
And executing S308-S309 if the ICS scheduling times of the frequency points to be processed are less than the preset gain gear number, and executing S3010 if the ICS scheduling times of the frequency points to be processed are greater than or equal to the preset gain gear number.
And S308, determining a gain gear index according to the scheduling times of the frequency points to be processed and a preset gain gear number.
Alternatively, the gain step index may be determined by: and performing modulus operation on the scheduling times of the frequency points to be processed and a preset gain gear number, wherein the operation result is the gain gear index. In fig. 3, the gain gear index is represented by gain _ idx.
And S309, performing ICS on the frequency point to be processed according to the gain gear to obtain an ICS result of the frequency point to be processed.
S3010, adding 1 to the scheduling times of the frequency points to be processed.
S3011, judging whether the frequency point to be processed is the last frequency point in the frequency point scheduling queue and whether a preset condition is met between the scheduling times of the frequency point to be processed and a preset frequency point sequencing period.
And executing S3012 if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and the scheduling times of the frequency point to be processed and the preset frequency point sequencing period meet the preset condition, and executing S3013 if the frequency point to be processed is not the last frequency point in the frequency point scheduling queue.
The above embodiments are referred to in an implementation manner of determining whether the scheduling frequency of the frequency point to be processed and the preset frequency point sequencing period satisfy the preset condition, and this embodiment is not described herein again.
S3012, updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (Internet connection sharing) search result of the first cell.
Specifically, the implementation manner of updating the sequence of each frequency point may refer to the above embodiments, and this application is not described herein again.
And S3013, updating k.
Specifically, referring to fig. 3, a modulo operation may be performed on K +1 and K, and the result of the modulo operation may be assigned to K.
S3014, judging whether to stop measurement.
Optionally, if the physical layer receives a measurement stop notification sent by the protocol stack, it is determined to stop measurement, the process shown in fig. 3 is ended, and if the measurement stop notification sent by the protocol stack is not received, the process returns to execute S302.
Fig. 4 is a timing diagram of scheduling and measurement reporting of the frequency points corresponding to fig. 3. The frequency point scheduling queue corresponding to fig. 4: g _ freq _ scheduled _ queue [ K ] = [ f0, f1, f2, \ 8230;, f7], referring to fig. 4, by executing the process shown in fig. 3, in the first round, ICS is sequentially performed on each frequency point in the frequency point scheduling queue by using mid gain, wherein f0, f1, f2, f3, f4 do not search a first cell, and f5, f6, f7 search the first cell. In the second round, high gain is used to sequentially perform ICS on f0, f1, f2, f3 and f4 of the first cell which is not searched, and measurement and neighbor search are sequentially performed on f5, f6 and f7 of the first cell which is searched, in the ICS of the second round, if f0, f1, f2 and f3 of the first cell are searched, f4 of the first cell is not searched yet. Since the second wheel pair f7 performs measurement and neighbor search, and after S3010 is executed, f7 satisfies the condition in S3011, so that reordering may be triggered, since f5, f6, f7 has measurement result, f0, f1, f2, f3 has ICS result, and f4 has no ICS result, f5, f6, f7 may be arranged in front, f0, f1, f2, f3 may be arranged in the middle, and f4 may be arranged in the end, further, for f5, f6, f7, the measurement value may be ordered from large to small, and for f0, f1, f2, f3, the correlation peak value of the synchronization signal may be ordered from large to small. Thereby obtaining a new frequency point scheduling queue: g _ freq _ scheduled _ queue [ K ] = [ f5, f6, f7, f0, f1, f2, f3, f4]. At this time, k = (7 + 1)% 8=0 obtained in S3013, and when the determination result in S3014 is no, the processing of S302 to S3014 is continuously performed on g _ frequency _ scheduled _ queue [0], that is, f5, and so on. As can be seen from fig. 4, after the frequency point scheduling queue is updated, since f5, f6, and f7 are arranged in front, f5, f6, and f7 are measured preferentially, so that f5, f6, and f7 are measured 2 times before the Event B trigger point, so that the protocol stack can evaluate f5, f6, and f7, and generate a measurement report when a threshold in a B1 measurement Event is met, and report the measurement report to the gnnodeb. Therefore, the UE is quickly switched to the 4G system to obtain the voice service, and the user experience is improved.
In addition, as shown in fig. 4, after the frequency point sequence is updated, in the third round of processing, f5, f6, f7, f0, f1, f2, and f3 are measured in sequence according to the new frequency point sequence, and when f4 comes, as shown in fig. 3, because the determination result in S307 is no, ICS is not performed on f4, only the frequency point scheduling times G _ freq _ scheduled _ cnt [ k ] are counted, and the frequency point is skipped to continue polling on subsequent frequency points, it is seen that the scheduling policy of this embodiment preferentially measures the frequency point at which the first cell has been searched, so that the UE can measure multiple measurement results of at least one frequency point within a limited time, thereby generating a measurement report to be reported to the gnnodeb, so that the UE quickly switches to a 4G system to obtain a voice service, and user experience is improved.
In the inter-system measurement method provided by the embodiment, on one hand, two gears are set in the gain gear table. Compared with the prior art that ICS is carried out by using three gears of mid gain, high gain and low gain, the number of the gap used for ICS is reduced, and the gap used for measurement is increased; on the other hand, after two rounds of processing are carried out by using mid gain and high gain, the sequence of each frequency point in the frequency point scheduling queue is updated according to the measurement result and/or ICS result of each frequency point in the frequency point scheduling queue, so that more gap is used for measurement; on the other hand, for the frequency points of the first cell, which are not searched by using mid gain and high gain for ICS, the ICS is not performed on the frequency points, but gap is used for measuring other frequency points with detected cells, so that the measurement times of some frequency points before the Event B trigger point can reach a preset value, and therefore the UE can generate a measurement report in a short time and report the measurement report to the gNodeB, the UE is quickly switched to a 4G system to obtain voice service, and user experience is improved.
Fig. 5 is a schematic structural diagram of the inter-system measurement apparatus provided in the present application. The inter-system measuring device can be a chip, a chip module or a processor. As shown in fig. 5, the inter-system measurement apparatus provided by the present application includes:
an obtaining module 501, configured to obtain a frequency point to be processed from a frequency point scheduling queue, where the frequency point scheduling queue includes multiple pre-configured frequency points;
an updating module 502, configured to update a sequence of each frequency point in the frequency point scheduling queue according to a measurement result of each frequency point in the frequency point scheduling queue and/or an ICS (interference cancellation system) result of a first cell search if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and a preset condition is met between the scheduling frequency of the frequency point to be processed and a preset frequency point sequencing period;
a measuring module 503, configured to measure or ICS the frequency point in the updated frequency point scheduling queue.
Optionally, the updating module 502 is specifically configured to:
respectively obtaining a frequency point with a measurement result, a frequency point with an ICS result and a frequency point without the ICS result from the frequency point scheduling queue;
and sequencing the frequency points with the measurement results, the frequency points with the ICS results and the frequency points without the ICS results in sequence to update the sequence of each frequency point in the frequency point scheduling queue.
Optionally, the number of the frequency points with measurement results is greater than 1, the number of the frequency points with ICS results is greater than 1, and the updating module 502 is specifically configured to:
sequencing the frequency points with the measurement results from large to small according to the measurement results;
and sequencing the frequency points with the ICS results from large to small according to the ICS results.
Optionally, the updating module 502 is further configured to:
performing modulus operation on the scheduling times of the frequency points to be processed and the preset frequency point sequencing period to obtain a first modulus result;
judging whether the first modulus-taking result is equal to zero or not;
and if so, determining that the preset condition is met between the scheduling times of the frequency points to be processed and a preset frequency point sequencing period.
Optionally, the updating module 502 is further configured to:
judging whether the frequency point to be processed has an ICS result;
if the frequency point to be processed has an ICS result, measuring the frequency point to be processed to obtain a measurement result of the frequency point to be processed, and adding 1 to the scheduling times of the frequency point to be processed;
if the frequency point to be processed has no ICS result, determining a gain gear according to the scheduling times of the frequency point to be processed; and performing ICS on the frequency point to be processed according to the gain gear to obtain an ICS result of the frequency point to be processed, and adding 1 to the scheduling times of the frequency point to be processed.
Optionally, the updating module 502 is specifically configured to:
determining the ICS scheduling times of the frequency points to be processed according to the scheduling times of the frequency points to be processed and a preset ICS scheduling period;
judging whether the ICS scheduling times of the frequency points to be processed are smaller than a preset gain gear number or not;
if the ICS scheduling times of the frequency points to be processed are smaller than the preset gain gear number, determining a gain gear index according to the scheduling times of the frequency points to be processed and the preset gain gear number;
and determining the gain gear according to the gain gear index.
Optionally, the updating module 502 is specifically configured to:
and if the scheduling times of ICS of the frequency point to be processed are greater than or equal to the preset gain gear number, adding 1 to the scheduling times of the frequency point to be processed.
Optionally, the updating module 502 is specifically configured to:
and performing modulus operation on the scheduling times of the frequency points to be processed and the preset gain gear number to obtain the gain gear index.
The inter-system measurement apparatus provided in this embodiment may be used to perform the steps in any of the above method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 6 is a schematic diagram of a hardware structure of a chip provided by the present invention. As shown in fig. 6, the chip of the present embodiment may include:
a memory 601 for storing program instructions.
The processor 602 is configured to implement the inter-system measurement method described in any of the above embodiments when the program instructions are executed, and specific implementation principles may refer to the above embodiments, which are not described herein again.
The invention provides a terminal device, which comprises a chip shown in fig. 6, wherein the terminal device can be a mobile phone, a tablet computer, a vehicle-mounted terminal and the like.
The present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the inter-system measurement method described in any of the above embodiments.
The present invention also provides a program product comprising a computer program stored in a readable storage medium, from which the computer program can be read by at least one processor, the at least one processor executing the computer program to cause a terminal device to implement the inter-system measurement method described in any of the above embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (in english: processor) to execute some steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be understood that the Processor described herein may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A method for inter-system measurement, comprising:
acquiring a frequency point to be processed from a frequency point scheduling queue, wherein the frequency point scheduling queue comprises a plurality of pre-configured frequency points;
if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and the scheduling times of the frequency point to be processed and a preset frequency point sequencing period meet a preset condition, updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (interference cancellation system) result of the first cell search;
measuring or ICS the frequency points in the updated frequency point scheduling queue;
the updating the sequence of each frequency point in the frequency point scheduling queue according to the measurement result of each frequency point in the frequency point scheduling queue and/or the ICS (ICS search result of the first cell) comprises the following steps:
respectively acquiring a frequency point with a measurement result, a frequency point with an ICS result and a frequency point without the ICS result from the frequency point scheduling queue;
sequencing the frequency points with the measurement results, the frequency points with the ICS results and the frequency points without the ICS results in sequence to update the sequence of each frequency point in the frequency point scheduling queue;
determining that the scheduling times of the frequency points to be processed and a preset frequency point sequencing period meet a preset condition, wherein the method comprises the following steps:
performing modulus operation on the scheduling times of the frequency points to be processed and the preset frequency point sequencing period to obtain a first modulus result;
judging whether the first modulus-taking result is equal to zero or not;
and if so, determining that the preset condition is met between the scheduling times of the frequency points to be processed and a preset frequency point sequencing period.
2. The method according to claim 1, wherein the number of the frequency points with measurement results is greater than 1, the number of the frequency points with ICS results is greater than 1, and before the frequency points with measurement results, the frequency points with ICS results, and the frequency points without ICS results are sequentially sorted, the method further comprises:
sequencing the frequency points with the measurement results from large to small according to the measurement results;
and sequencing the frequency points with the ICS results from large to small according to the ICS results.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
judging whether the frequency point to be processed has an ICS result;
if the frequency point to be processed has an ICS result, measuring the frequency point to be processed to obtain a measurement result of the frequency point to be processed, and adding 1 to the scheduling times of the frequency point to be processed;
if the frequency point to be processed has no ICS result, determining a gain gear according to the scheduling times of the frequency point to be processed; and performing ICS on the frequency point to be processed according to the gain gear to obtain an ICS result of the frequency point to be processed, and adding 1 to the scheduling times of the frequency point to be processed.
4. The method according to claim 3, wherein the determining gain steps according to the scheduling times of the frequency points to be processed comprises:
determining the ICS scheduling times of the frequency points to be processed according to the scheduling times of the frequency points to be processed and a preset ICS scheduling period;
judging whether the ICS scheduling times of the frequency points to be processed are smaller than a preset gain gear number or not;
if the ICS scheduling times of the frequency points to be processed are smaller than the preset gain gear number, determining a gain gear index according to the scheduling times of the frequency points to be processed and the preset gain gear number;
and determining the gain gear according to the gain gear index.
5. The method of claim 4, further comprising:
and if the scheduling times of ICS of the frequency point to be processed are greater than or equal to the preset gain gear number, adding 1 to the scheduling times of the frequency point to be processed.
6. The method according to claim 4, wherein the determining a gain step index according to the scheduling times of the to-be-processed frequency points and the preset gain step number comprises:
and performing modulus operation on the scheduling times of the frequency points to be processed and the preset gain gear number to obtain the gain gear index.
7. An inter-system measurement apparatus, characterized in that the inter-system measurement apparatus includes:
the device comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring a frequency point to be processed from a frequency point scheduling queue, and the frequency point scheduling queue comprises a plurality of pre-configured frequency points;
an updating module, configured to update the sequence of each frequency point in the frequency point scheduling queue according to a measurement result of each frequency point in the frequency point scheduling queue and/or an ICS (interference cancellation system) result of a first cell search if the frequency point to be processed is the last frequency point in the frequency point scheduling queue and a preset condition is satisfied between the scheduling frequency of the frequency point to be processed and a preset frequency point sorting period;
the measurement module is used for measuring or ICS the frequency points in the updated frequency point scheduling queue;
the update module is specifically configured to:
respectively obtaining a frequency point with a measurement result, a frequency point with an ICS result and a frequency point without the ICS result from the frequency point scheduling queue;
sequencing the frequency points with the measurement results, the frequency points with the ICS results and the frequency points without the ICS results in sequence to update the sequence of each frequency point in the frequency point scheduling queue;
the update module is further to:
performing modulus operation on the scheduling times of the frequency points to be processed and the preset frequency point sequencing period to obtain a first modulus result;
judging whether the first modulus-taking result is equal to zero or not;
and if so, determining that the preset condition is met between the scheduling times of the frequency points to be processed and a preset frequency point sequencing period.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of any one of claims 1-6.
9. A chip, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to implement the method of any of claims 1-6 via execution of the executable instructions.
10. A terminal device, characterized in that it comprises a chip according to claim 9.
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