CN113115391A

CN113115391A - Cell measurement method, device, equipment and storage medium

Info

Publication number: CN113115391A
Application number: CN202110572216.5A
Authority: CN
Inventors: 谢朝阳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-07-13
Anticipated expiration: 2041-05-25
Also published as: CN113115391B; WO2022247532A1

Abstract

The embodiment of the application discloses a cell measurement method, a device, equipment and a storage medium; wherein the method comprises the following steps: under the condition that User Equipment (UE) receives a Tracking Area Indication (TAI) list which is issued by network equipment and used for indicating an available area or an unavailable area, determining an original measurement result obtained based on cell measurement; modifying the original measurement result to obtain a target measurement result; wherein the target measurement result is capable of increasing a probability that the UE switches or reselects to a cell of the available area compared to the original measurement result.

Description

Cell measurement method, device, equipment and storage medium

Technical Field

The embodiment of the application relates to communication technology, and relates to, but is not limited to, a cell measurement method, a cell measurement device, cell measurement equipment and a storage medium.

Background

According to the description of the Service Area restriction of the 3GPP access type in the current 3GPP TS24.501, the Service Area restriction is a set of Tracking Area Identity (TAI) lists configured to a User Equipment (UE) by a network through a Service Area list (Service Area list IE) during a registration or configuration update command of the UE. However, in a service area restriction scenario, a problem often occurs in which the UE cannot provide a normal service.

Disclosure of Invention

In view of this, the cell measurement method, the cell measurement device, the cell measurement apparatus, and the storage medium provided in the embodiments of the present application can increase the probability that the UE switches or reselects to the cell of the available area in the scenario of limited service area, thereby improving the communication service performance of the UE. The cell measurement method, device, equipment and storage medium provided by the embodiment of the application are realized as follows:

the cell measurement method provided by the embodiment of the application comprises the following steps: under the scene that UE receives a TAI list which is issued by network equipment and used for indicating an available area or an unavailable area, determining an original measurement result obtained based on cell measurement; modifying the original measurement result to obtain a target measurement result; wherein the target measurement result is capable of increasing a probability that the UE switches or reselects to a cell of the available area compared to the original measurement result.

The cell measurement device provided by the embodiment of the application comprises: a determining module, configured to determine an original measurement result obtained based on cell measurement in a scenario where a UE receives a TAI list sent by a network device to indicate an available area or an unavailable area; the modification module is used for modifying the original measurement result to obtain a target measurement result; wherein the target measurement result is capable of increasing a probability that the UE switches or reselects to a cell of the available area compared to the original measurement result.

The user equipment provided by the embodiment of the application comprises a memory and a processor, wherein the memory stores a computer program which can run on the processor, and the processor executes the program to realize the method of the embodiment of the application.

The computer readable storage medium provided by the embodiment of the present application has a computer program stored thereon, and the computer program is used for implementing the method provided by the embodiment of the present application when being executed by a processor.

In the embodiment of the application, in a scenario where the UE receives information of an available area or an unavailable area configured by a network, the UE modifies an original measurement result first, and performs cell reselection or cell handover according to a target measurement result obtained after modification, instead of directly performing cell reselection or cell handover according to the original measurement result obtained by cell measurement; in this way, through modification, the target measurement result can increase the probability of switching or reselecting to a cell of an available area when the UE is in a service area limitation scenario, thereby improving the communication service performance of the UE.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic diagram of a network architecture to which the present invention may be applied;

fig. 2 is a schematic flow chart illustrating an implementation of a cell measurement method according to an embodiment of the present application;

FIG. 3 is a diagram illustrating a service area restriction scenario in which a UE is located;

fig. 4 is a schematic diagram illustrating an implementation flow of a cell measurement method according to an embodiment of the present application;

fig. 5A is a schematic flow chart illustrating an implementation of a cell measurement method according to an embodiment of the present application;

fig. 5B is a flowchart illustrating an implementation of a method for reducing a first received signal measurement value of a neighboring cell belonging to the unavailable area according to an embodiment of the present application;

fig. 5C is a schematic flowchart of an implementation of a method for reducing a first received signal measurement value of a neighboring cell belonging to the unavailable area according to an embodiment of the present application;

FIG. 6 is a diagram illustrating a process of a UE after successfully registering with a network;

fig. 7 is a schematic diagram of an implementation flow of a mechanism for providing normal service guarantee and recovery when a UE receives a high-level service initiation request and the UE is located at a service area limit edge according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a cell measurement apparatus according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application. In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. It should be noted that reference to the terms "first \ second \ third" in the embodiments of the present application does not denote a particular ordering with respect to the objects, and it should be understood that "first \ second \ third" may be interchanged under certain circumstances or of a certain order, such that the embodiments of the present application described herein may be performed in an order other than that shown or described herein.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation on the technical solution provided in the embodiment of the present application. As can be known to those skilled in the art, with the evolution of network architecture and the emergence of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

The technical solution of the embodiment of the present application may be applied to the 4th Generation mobile communication system (4G), the fifth Generation mobile communication technology (5th-Generation wireless communication technology, 5G), a New Radio (NR) system or a future communication system, and may also be applied to other various wireless communication systems, for example: a narrowband Band-Internet of Things (NB-IoT) System, a Global System for Mobile communications (GSM), an Enhanced Data rate for GSM Evolution (EDGE) System, a Wideband Code Division Multiple Access (WCDMA) System, a Code Division Multiple Access (Code Division Multiple Access) 2000 System, a Time Division synchronous Code Division Multiple Access (Time Division-synchronous Code Division Multiple Access, TD-SCDMA) System, a General Packet Radio Service (General Packet Radio Service, GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, a Frequency Division Duplex (FDD) System, an LTE (Time Division Duplex, UMTS) System, or a UMTS Mobile telecommunications System.

Fig. 1 illustrates a network architecture to which embodiments of the present application may be applied. As shown in fig. 1, the network architecture provided by the present embodiment includes: network Equipment 101 and User Equipment (UE) 102, further including network Equipment 103 and network Equipment 104, etc.; where the UE currently resides in a cell covered by the network device 101 (referred to as a serving cell of the UE), and cells covered by the network device 103 and the network device 104 are neighbor cells of the cell covered by the network device 101.

The UE according to the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of user terminal devices (terminal devices) or Mobile Stations (MSs). The network device according to the embodiment of the present application is a device deployed in a radio access network to provide a UE with a wireless communication function.

When the UE is in a service connection state and keeps service, the UE moves from one cell to another cell, and the original serving cell no longer provides service to the UE, and in order to not interrupt the service, the radio bearer system searches for a suitable cell or network device to provide service to the UE, so as to implement mobility management of seamless coverage of the radio network, which is cell handover.

Cell reselection (cell reselection) refers to a process in which a UE selects an appropriate cell to provide a service signal by monitoring signal quality or strength of neighboring cells and a serving cell in an idle mode. Through cell reselection, the UE in idle mode can be guaranteed to reside in a suitable cell to the greatest extent. In idle mode, cell reselection is triggered by monitoring measurements of the serving cell and neighbor cells. The core contents of the reselection triggering condition are as follows: there are better cells than the serving cell and the better cells maintain better received signal quality for a period of time. Therefore, on one hand, the UE can reselect to a better cell as much as possible; on the other hand, certain stability is guaranteed, and frequent reselection oscillation is avoided.

According to the description of the Service area restriction of the 3GPP access type in the communication protocol 3GPP TS24.501, the Service area restriction refers to a set of TAI lists configured to the UE by the network device through a Service area list (Service area list IE) during the UE registration or configuration update command. The TAI list contained in the Service area list IE may indicate "usable area" or "unusable area". Both the "usable area" and the "unusable area" belong to a Registered Public Land Mobile Network (RPLMN) or Equivalent Public Land Mobile Network (EPLMN) of the UE, and are composed of up to 16 TAIs.

When the UE camps on a cell of an available area, the UE should enter a 5GMM-registered normal SERVICE (5GMM-registered. normal-SERVICE) state, and the UE can provide normal SERVICE at this time. On the contrary, when the UE resides in a cell in an unavailable area, the UE enters a 5GMM registered non-ALLOWED SERVICE (5GMM-registered non-ALLOWED-SERVICE), at this time, the UE cannot provide a normal SERVICE, and the UE can only initiate a registration and SERVICE request process for acquiring a network SERVICE due to an emergency SERVICE or a high priority user access, and if a Radio Resource Control (RRC) layer of the UE is in a connected state, the UE cannot initiate a normal session SERVICE to acquire the SERVICE.

Under a scenario that the UE does not receive a TAI list sent by the network device to indicate an available area or an unavailable area, the relevant contents of cell measurement and cell reselection of the UE are as follows (1) to (5):

(1) if the Cell selection reception level value (Srxlev) > sitrashchp of the serving Cell and the Cell selection quality value (Cell selection quality value, square) > sitraschq of the serving Cell, the UE may not perform the intra-frequency measurement;

srxlev is a cell selection reception level value (dB) calculated in a cell selection/reselection process, and the value is related to Reference Signal Reception Power (RSRP) measured, that is, absolute Signal strength of RSRP dimension, and sintrasearch is a same-frequency RSRP measurement starting threshold; squal refers to a cell selection Quality value (dB) calculated in a cell selection or reselection process, and the value is related to a Reference Signal Receiving Quality (RSRQ) to be measured, i.e., a relative Quality of an RSRQ dimension, and SintraSearchQ is a same-frequency RSRQ measurement starting threshold.

(2) If Srxlev > SnonIntraSearchP of the serving cell and Square > SnonIntraSearchQ of the serving cell, the UE may not perform equal priority and low priority frequency point measurement;

wherein, SnonIntraSearchP is pilot frequency RSRP measurement starting threshold, and SnonIntraSearchQ is pilot frequency RSRQ measurement starting threshold.

(3) The requirement of the pilot frequency high priority cell reselection is satisfied: in a time interval TreselectionRAT, the Squal > ThreshX, HighQ of the adjacent frequency cell or the Srxlev > ThreshX, HighP of the adjacent frequency cell resides on the original cell for more than 1 second;

wherein threshX and highQ are high-priority reselection thresholds related to RSRQ, and threshX and highP are high-priority reselection thresholds related to RSRP.

(4) The requirement of the pilot frequency low-priority cell reselection is satisfied: within the time interval treselectioncirat, the serving cell's square < ThreshServing, LowQ, and the neighbor cell's square > ThreshX, LowQ or the serving cell's Srxlev < ThreshServing, LowP and the neighbor cell's Srxlev > ThreshX, LowP, and camp on the serving cell for more than 1 second.

Wherein, ThreshServing, LowQ is a low priority reselection threshold related to RSRQ of the serving cell, ThreshX, LowQ is a low priority reselection threshold related to RSRQ of the adjacent cell; ThreshServing, LowP is the low priority reselection threshold related to the RSRP of the serving cell, ThreshX, LowP is the low priority reselection threshold related to the RSRP of the neighboring cell.

(5) The cell reselection of frequency points with same frequency or equal priority needs to meet R criteria, namely:

Rs＝Qmeas,s+Qhyst–Qoffsettemp；

Rn＝Qmeas,n-Qoffset–Qoffsettemp；

satisfying a neighbor cell Rank (Rn) value higher than R of the serving cell within a time interval TreselectionRAT_ank value (R)_s)。

Wherein, Rs is the R measurement value of the serving cell, Rn is the R measurement value of the neighbor cell, Qmeas, s is the average RSRP measurement value of the serving cell for reselection, Qmeas, n is the average RSRP measurement value of the neighbor cell for reselection, and Qhyst, Qoffset and Qoffsettemp are specific values;

it should be noted that the foregoing is only for assisting understanding of the cell measurement method provided in the embodiment of the present application, and does not limit the scope of the technical solutions on the side of the method, the apparatus, the device, and the storage medium provided in the embodiment of the present application.

An embodiment of the present application provides a cell measurement method, and fig. 2 is a schematic flow chart illustrating an implementation of the cell measurement method provided in the embodiment of the present application, and as shown in fig. 2, the method may include the following steps 201 to 202:

step 201, in a scenario where the UE receives a TAI list sent by the network device to indicate an available area or an unavailable area, determining an original measurement result obtained based on cell measurement.

And receiving a TAI list of the available area or the unavailable area configured on the network side at the UE, wherein the TAI list indicates that the UE is possibly in the available area or the unavailable area. Depending on the network configuration and the UE camping, the UE may be in scenario one or scenario two, where:

scene one: the UE successfully registers to a Public Land Mobile Network (PLMN) and camps on a cell of an available area configured by the Network (for example, as shown in fig. 3); or, the UE successfully registers to a PLMN and resides in a cell outside an unavailable area configured by the network; in this scenario, the UE may provide normal services, and the services provided by the UE are not limited.

Scene two: the UE successfully registers to a PLMN and resides in a cell outside an available area configured by a network; alternatively, the UE successfully registers to a PLMN and camps on a cell in an unavailable area configured by the network (e.g., as shown in fig. 3); in this scenario, except for emergency services and services of high-priority users, the UE cannot provide normal services, and the services provided by the UE are limited.

However, based on the relevant protocol framework and UE implementation mechanisms, in the case of scenario one, this may happen if the UE is at the edge of the available area and there are neighbor cells of the unavailable area: as the UE reselects to the cell in the unavailable area or reports the measurement report of the neighboring cell, the network switches the UE to the cell in the unavailable area, which may cause the user to fail to initiate a new service or cause a service interruption, thereby affecting the user experience.

In the case of scenario two, if the UE resides in a cell of a currently unavailable area, normal service cannot be provided. Only when the UE reselects the cell of the available area or reports the measurement report of the adjacent cell, the network switches the UE to the cell of the available area, the normal service can be restarted, and the normal service is recovered. However, when the UE is located at the edge of the unavailable area, even if there is a neighboring cell that can provide normal service, the UE may not reselect or switch to the cell of the available area for a long time, which may result in that the UE cannot provide normal service for the user for a long time, and user experience is affected.

In the embodiment of the present application, the original measurement result obtained based on cell measurement is modified in step 202, so that the probability that the UE switches or reselects to a cell in an available area can be increased by the modified target measurement result, and the problems in the scenario one and the scenario two are further solved.

Step 202, modifying the original measurement result to obtain a target measurement result; wherein the target measurement result is used for cell handover or cell reselection, and the target measurement result can increase the probability of the UE being handed over or reselected to the cell of the available area compared with the original measurement result.

The manner in which the raw measurements are modified may be varied. For example, the received signal measurement value or the corresponding received signal calculation value of the serving cell or the neighboring cell of the UE is modified as provided in the following embodiments. For another example, the UE may also directly filter the measurement results of the cells of the unavailable region in the raw measurement results, that is, the target measurement result only includes the measurement results of the cells of the available region.

It should be noted that the cell measurement method provided in the embodiment of the present application is applicable to both the case where the serving cell of the UE belongs to the unavailable area and the RRC layer is in a connected state or an Idle (Idle) state, and the case where the serving cell of the UE belongs to the available area and the RRC layer is in a connected state or an Idle state.

That is, in some embodiments, if the serving cell of the UE belongs to the unavailable region and the RRC layer is in a connected state or an idle state, the original measurement result is modified; and/or modifying the original measurement result if the serving cell of the UE belongs to the available region and the RRC layer is in a connected state or an idle state. As can be understood, for the former scenario, the probability that the UE switches or reselects from the cell of the unavailable area to the cell of the available area can be improved by modifying the original measurement result, so as to ensure that the UE outside the limited edge of the service area provides normal service continuity; for the latter scenario, the UE can actively camp on a cell capable of providing normal service by modifying the original measurement result, thereby greatly ensuring the probability that the UE at the limited edge of the service area provides normal service.

It can be understood that, if the RRC layer of the UE is in an idle state, the UE may perform cell reselection according to the target measurement result; if the RRC layer of the UE is in a connected state, the UE can generate a measurement report according to the target measurement result, then the measurement report is reported to the network equipment, and the network equipment switches the UE to a proper cell according to the measurement report.

In some embodiments, the UE in the RRC connected state may report the cell satisfying the condition in the target measurement result to the network device. For example, the cells with the measured or calculated received signal values greater than a certain threshold are reported to the network device, or the cell with the largest one or more of these values is reported to the network device.

In the embodiment of the application, in a scenario where the UE receives information of an available area or an unavailable area configured by the network device, the UE does not directly perform cell reselection or cell handover according to an original measurement result obtained by cell measurement, but modifies the original measurement result first, and performs cell reselection or cell handover according to a target measurement result obtained after modification; in this way, the target measurement result can be modified to increase the probability of switching or reselecting to a cell of an available area when the UE is in the scene, so as to improve the communication service performance of the UE.

Fig. 4 is a schematic flow chart illustrating an implementation of the cell measurement method provided in the embodiment of the present application, and as shown in fig. 4, the method may include the following steps 401 to 404:

step 401, in a scenario where the UE receives a TAI list sent by the network device to indicate an available area or an unavailable area, determining whether the serving cell belongs to a cell of the unavailable area according to the list; if yes, go to step 402; otherwise, go to step 403;

it can be understood that, if the serving cell of the UE is in the unavailable area, it indicates that the UE is in the service-limited state at this time; and if the service cell of the UE is in the available area, indicating that the UE is in the service unrestricted state at the moment. The service-restricted state means that the UE cannot provide a normal service (i.e., a service that the UE should originally enjoy) to the user in the serving cell. For example, when the UE is in a cell of an unavailable area, the UE cannot provide normal service except for emergency service and service of a high priority user. And the UE can provide normal service for the user in the service unrestricted state.

In some embodiments, if the UE is in the service limited state, the state of its 5GMM is: non-ALLOWED-SERVICE of 5 GMM-registered; UE 5GMM if in the SERVICE unrestricted state, is 5GMM-registered.

Step 402, when the RRC layer of the UE is in a connected state or an idle state, modifying an original measurement result obtained based on cell measurement to obtain a target measurement result; wherein the target measurement result is capable of increasing a probability that the UE switches or reselects to a cell of the available area compared to the original measurement result; in this way, the probability of switching or reselecting the UE from the cell in the unavailable area to the cell in the available area can be improved by modifying the original measurement result, so as to ensure the continuity of providing normal service for the UE outside the limit edge of the service area.

Step 403, if the RRC layer of the UE is currently in an idle state, triggering a service request procedure, so as to enable the RRC layer of the UE to enter a connected state; then go to step 404;

step 404, if the RRC layer of the UE is currently in a connected state, modifying an original measurement result obtained based on cell measurement to obtain a target measurement result; wherein the target measurement result is capable of reducing a probability of the UE switching to a cell of the unavailable region compared to the original measurement result; in this way, the UE can actively camp on the cell capable of providing normal service by modifying the original measurement result, thereby greatly ensuring the continuity of providing normal service for the UE at the limited edge of the service area.

In some embodiments, the UE in idle state in the RRC layer may perform cell reselection according to the target measurement result.

In some embodiments, the UE in the connected RRC layer may report a measurement report according to the target measurement result, and the network may switch the UE to a suitable cell according to the measurement.

An embodiment of the present application provides a cell measurement method, and fig. 5A is a schematic flow chart illustrating an implementation of the cell measurement method provided in the embodiment of the present application, as shown in fig. 5A, where step 501 and step 503 are not shown, the method may include the following steps 501 to 503:

step 501, in a scenario where the UE receives a TAI list sent by the network device to indicate an available area or an unavailable area, determining an original measurement result obtained based on cell measurement.

The type of the raw measurement result determined by the UE is not limited, and may be various types of values. In some embodiments, the raw measurements include at least one of: the UE calculates a first receiving signal measured value of the adjacent cell based on the measured value of the cell, a first receiving signal calculation value of the adjacent cell calculated by the UE based on the first receiving signal measured value, a second receiving signal measured value of the service cell calculated by the UE based on the measured value of the cell, and a second receiving signal calculation value of the service cell calculated based on the second receiving signal measured value.

There is no limitation on the type of parameter characterizing the first received signal measurement and the second received signal measurement. For example, the first and second received signal measurement values are values of a parameter RSRP or RSRQ. There is no limitation on the type of parameters characterizing the first received signal calculation and the second received signal calculation. For example, the first received signal calculation value and the second received signal calculation value are values of parameters Srxlev, Squal, or Rank.

In step 502, the UE may modify the raw measurement result to obtain a target measurement result by at least one of: (1) decreasing the first received signal measurement value or the first received signal calculation value of a neighbor cell belonging to the unavailable region, (2) increasing the first received signal measurement value or the first received signal calculation value of a neighbor cell belonging to the available region, (3) decreasing a second received signal measurement value or a second received signal calculation value of a serving cell of the UE if the serving cell belongs to the cell of the unavailable region.

For steps (1) and (2) of step 502, the method is applicable to both the scenario in which the serving cell of the UE is a cell of an unavailable area and the scenario in which the serving cell of the UE is a cell of an available area.

As can be appreciated, by step 502 (1), the received signal measurements or calculations of the neighbor cells belonging to the unavailable area are reduced; as such, the following results may exist: the measured value or the calculated value of the received signal of the adjacent cell of the unavailable area is lower and does not reach the threshold of the network switching event; or, when the UE reports the measurement report, the number of neighbor cells of the unavailable area included in the measurement report is decreased; therefore, no matter whether the current serving cell of the UE is the cell of the available area or the cell of the unavailable area, the probability that the adjacent cell of the unavailable area of the UE is selected can be reduced, and the UE is further prevented from being switched or reselected to the adjacent cell as much as possible.

It should be noted that, in the embodiment of the present application, a method for reducing the first received signal measurement value or the first received signal calculation value of the neighboring cell belonging to the unusable area is not limited, and the reduction may be achieved by an operation such as subtraction, multiplication, or division. For example, the weight value smaller than 1 is multiplied by the first received signal measurement value or the first received signal calculation value of the neighboring cell belonging to the unavailable area, thereby achieving the purpose of reduction; wherein, the weight value is positively correlated with the second received signal measurement value of the serving cell belonging to the available area. For another example, the first received signal measurement value or the first received signal calculation value of the neighboring cell belonging to the unavailable region and the corresponding to-be-reduced amount are directly subtracted, so as to achieve the purpose of reduction.

Of course, the relationship of positive correlation is not limited, and the corresponding weight or the amount to be reduced may be the same for the second received signal measurement value of the serving cell of the available area, regardless of the size or the magnitude.

Through step 502 (2), the received signal measurement value or calculation value of the neighboring cell belonging to the available area is increased; as such, the following results may exist: the measured value or the calculated value of the received signal of the adjacent cell of the available area is higher, and the threshold of triggering the network switching event is reached; or, when the UE reports the measurement report, increasing the number of neighboring cells of the available area included in the measurement report; therefore, no matter the current serving cell of the UE is the cell of the available area or the cell of the unavailable area, the probability of selecting the adjacent cell of the available area is increased, and the UE is switched or reselected to the adjacent cell of the available area as much as possible.

Similarly, in the embodiment of the present application, the method for increasing the first received signal measurement value or the first received signal calculation value of the neighboring cell of the available area is not limited, and the increase may be achieved by means of an operation such as addition, multiplication, or division. For example, the weight greater than 1 is multiplied by the first received signal measurement value or the first received signal calculation value of the neighboring cell of the available area, thereby achieving the purpose of increasing; wherein, the weight value is positively correlated with the second received signal measurement value of the serving cell belonging to the unavailable area. For another example, the first received signal measurement value or the first received signal calculation value of the neighboring cell of the available area and the corresponding to-be-increased amount are directly added, so as to achieve the purpose of increasing.

Of course, the relationship of positive correlation is not limited, and the corresponding weight or the amount to be increased may be the same for the second received signal measurement value of the serving cell of the unavailable area, regardless of the size.

Decreasing the received signal measurement value or the calculated value of the serving cell belonging to the unavailable area, through (3) of step 502, i.e., if the serving cell of the UE belongs to the cell of the unavailable area; therefore, on one hand, the reduced value can meet the measurement starting condition as much as possible, so that the UE residing in the cell of the unavailable area is triggered to start cell measurement as early as possible, and the probability of the UE reselecting to the cell of the available area is indirectly increased; on the other hand, when the UE uses the R criterion, the UE can be no longer camped on the serving cell as much as possible, thereby indirectly increasing the probability that the UE reselects to the cell of the available area.

In some embodiments, the UE may further immediately start cell measurement when detecting that the serving cell belongs to the unavailable area, and trigger the RRC layer to perform cell measurement; thus, the former enables the UE to switch or reselect to a cell of the available area as early as possible, compared to waiting for the measured or calculated value of the serving cell to be less than the corresponding specific threshold before triggering cell measurement.

Step 503, performing cell reselection or cell handover according to the target measurement result.

It can be understood that, if the RRC layer of the UE is in an idle state, the UE may perform cell reselection according to the target measurement result; if the RRC layer of the UE is in a connected state, the UE can generate a measurement report according to the target measurement result, and then the measurement report is reported to the network, and the network switches the UE to a proper cell according to the measurement report.

In some embodiments, for the case that the serving cell of the UE belongs to the available region and the RRC layer is in a connected state or an idle state, for (1) in step 502, the reducing the first received signal measurement value of the neighboring cell belonging to the unavailable region, as shown in fig. 5B, may include the following steps 502- (1) -1 and 502- (1) -2:

step 502- (1) -1, determining a second received signal measurement value for the serving cell.

In some embodiments, the second received signal measurement value may be an RSRP or an RSRQ of the serving cell.

Step 502- (1) -2, according to the second received signal measured value, reducing the first received signal measured value or the first received signal calculated value of the neighboring cell belonging to the unavailable area; wherein the amount of decrease in the first received signal measurement is positively correlated with the second received signal measurement; the amount of decrease in the first received signal calculation is positively correlated with the second received signal measurement.

It is understood that positive correlation means that the independent variable increases and the dependent variable increases. Here, the independent variable may be the second received signal measurement value of the serving cell, and the dependent variable may be the first received signal measurement value or the reduction amount of the first received signal calculation value of the neighbor cell of the unavailable region. That is, in a scenario in which a cell (i.e., a serving cell) in which the UE currently resides is a cell of an available area, the larger the second received signal measurement value (or the second received signal calculation value) of the serving cell belonging to the available area is, the more the first received signal measurement value (or the first received signal calculation value) of a neighboring cell of the unavailable area is reduced accordingly. In short, in order to enable the UE to stably camp in the cell when the cell where the UE currently camps is a cell of an available area and the signal strength is strong, the number of neighboring cells of the unavailable area in the reported measurement report or the measured value or calculated value of the received signal of the neighboring cell of the unavailable area is further reduced by a means of reducing the measured value or calculated value of the first received signal of the neighboring cell of the unavailable area, and the measured value or calculated value of the received signal of the neighboring cell of the unavailable area is lower and does not reach the threshold of the network handover event, so as to reduce the probability that the network switches or reselects the UE to the cell of the unavailable area, so that the UE camps in the cell of the available area as much as possible and maintains the continuity of the service.

Further, in some embodiments, for steps 502- (1) -2, reducing the first received signal measurements of neighbor cells belonging to the unavailable region comprises: determining a first amount to be reduced corresponding to the second received signal measurement value according to a first mapping relation; wherein, in the first mapping, the second received signal measurement is positively correlated with the first amount to be reduced; lowering a first received signal measurement value of a neighbor cell belonging to the unavailable region by the first amount to be decremented;

for step 502- (1) -2, reducing the first received signal calculation value for the neighbor cells belonging to the unavailable region comprises: determining a second received signal calculation value of the serving cell according to the second received signal measurement value; determining a second to-be-reduced quantity corresponding to the second received signal calculation value according to a second mapping relation; wherein, in the second mapping relationship, the second received signal calculation value is positively correlated with the second amount to be reduced; and reducing the first received signal calculation value of the adjacent cell belonging to the unavailable area by the second decrement.

Taking the example of reducing the first received signal measurement value of the neighboring cell belonging to the unavailable region, assuming that the first received signal measurement value is the value of the parameter RSRP, the mapping relationship between the RSRP of the serving cell belonging to the available region and the first amount to be reduced is shown in table 1:

TABLE 1

RSRP of serving cell (available area)	First quantity to be reduced of neighbor cell (unavailable area)
		-80dbm	30dbm
-81dbm	29dbm
		-82dbm	28dbm
…	…
		-109dbm	1dbm

As can be seen from table 1, the larger the RSRP of the serving cell of the available region is, the larger the first amount to be reduced of the neighbor cells of the unavailable region is, and accordingly, the more the first received signal measurement value of the neighbor cells of the unavailable region is reduced in the modification. For example, the RSRP of the serving cell is-80 dbm, the actually measured RSRP of the neighbor cell of the unavailable region is-78 dbm, and the first amount to be reduced according to table 1 is 30dbm, then the RSRP of the neighbor cell is reduced by 30dbm to-108 dbm, and this value is taken as one of the target measurement results.

For the case that the serving cell of the UE belongs to the unavailable region and the RRC layer is in a connected state or an idle state, in some embodiments, for step (2) in step 502, the reducing the first received signal measurement value of the neighboring cell belonging to the unavailable region, as shown in fig. 5C, may include the following steps 502- (2) -1 and 502- (2) -1:

step 502- (2) -1, determining a second received signal measurement value for the serving cell.

Step 502- (2) -2, increasing the first received signal measurement value or the first received signal calculation value of the neighboring cell belonging to the available area according to the second received signal measurement value;

wherein an amount of increase in the first received signal measurement is positively correlated with the second received signal measurement; the first received signal calculation value is increased by a positive correlation with the second received signal measurement value.

It is understood that positive correlation means that the independent variable increases and the dependent variable increases. Here, the independent variable may be a second received signal measurement value of a serving cell belonging to an unavailable area, and the dependent variable may be an increased amount of a first received signal measurement value or a first received signal calculation value of a neighbor cell belonging to an available area. That is, in a scenario in which a cell (i.e., a serving cell) in which the UE currently resides is a cell of an unavailable area, the larger the second received signal measurement value (or the second received signal calculation value) of the serving cell belonging to the unavailable area is, the more the first received signal measurement value (or the first received signal calculation value) of a neighboring cell of the available area is increased accordingly. In short, in a case that a cell where the UE currently resides is a cell of an unavailable area and a signal of the cell is strong, in order to enable the UE to more easily switch or reselect to a neighboring cell of the available area, a technical means of increasing a first received signal measurement value or a first received signal calculation value of the neighboring cell of the available area may be used; thus, if the UE is at the edge of the service area limit, it will be easier for the UE to switch or reselect to a cell of the available area.

Further, in some embodiments, for step 502- (2) -2, increasing the first received signal measurement value of the neighbor cell belonging to the available area comprises: determining a first to-be-increased amount corresponding to the second received signal measurement value according to a third mapping relation; wherein, in the third mapping, the second received signal measurement is positively correlated with the first to-be-incremented quantity; increasing a first received signal measurement of a neighbor cell belonging to the usable area by the first to-be-incremented amount;

for step 502- (2) -2, increasing the first received signal calculation value of the neighbor cells of the available area comprises: determining a second received signal calculation value of the serving cell according to the second received signal measurement value; determining a second to-be-increased amount corresponding to the second received signal calculation value according to a fourth mapping relation; wherein, in the fourth mapping relationship, the second received signal calculation value is positively correlated with the second waiting increment; and increasing the first received signal calculation value of the adjacent cell belonging to the available area by the second waiting increment.

Taking increasing the first received signal measurement value of the neighboring cell belonging to the available region as an example, assuming that the first received signal measurement value is the value of parameter RSRP, the mapping relationship between the RSRP of the serving cell belonging to the unavailable region and the first to-be-incremented amount is shown in table 2:

TABLE 2

RSRP of serving cell (unavailable area)	First waiting increment of neighbor cell (usable area)
		-109dbm	1dbm
-108dbm	2dbm
		-107dbm	3dbm
…	…
		-80dbm	30dbm

As can be seen from table 2, the larger the RSRP of the serving cell of the unavailable region is, the larger the first to-be-increased amount of the neighbor cells of the available region is, and accordingly, the more the first received signal measurement value of the neighbor cells of the available region is increased when modified. For example, the RSRP of the serving cell is-80 dbm, the actually measured RSRP of the neighboring cells of the available area is-108 dbm, and the first to-be-increased amount according to table 2 is 30dbm, then the RSRP of the neighboring cell is increased by 30dbm to-78 dbm, and this value is taken as one of the target measurement results.

In some embodiments, if the UE reselects from a serving cell belonging to the unavailable area to a target neighbor cell belonging to the available area, saving cell information of the target neighbor cell to the UE; therefore, when the UE is started up and selects the network next time, the priority of the cell is improved so as to be fast resided in the cell, and normal service is provided for the user.

It should be noted that the method applied in the service area restriction scenario is still applicable to the cell reselection scheme in the access restriction scenario. That is, the above method that the serving cell suitable for the UE is a cell in an unavailable area and the RRC layer is in an idle state is also suitable for a cell reselection scheme in an access restriction scenario. If the UE receives the information of forbidding to initiate access to the service cell, or if the UE receives the information of refusing to access after initiating access to the service cell, executing the step of the original measurement result of the service cell to the adjacent cell or the service cell belonging to the unavailable area in the method; and/or, performing the step of performing the above method for the neighboring cells belonging to the available area on the raw measurement results of the neighboring cells; therefore, under the access restriction scene, the service continuity of the UE can be improved.

An exemplary application of the embodiments of the present application in a practical application scenario will be described below.

For the disadvantage that the UE may not obtain normal service in the service area restriction scenario, in the embodiment of the present application, a mechanism is provided to enable the UE to quickly reselect or switch to an available area to recover normal service when the UE is located at the edge of the service area restriction, or to keep the UE residing in the cell of the available area as much as possible to ensure normal service: that is, for scenario one above, when the UE is in a cell at the edge of an available area, the probability of the UE reselecting or switching to an unavailable area cell is minimized by adjusting the reselection criterion and the signal value of the measurement report. For scenario two above, when the UE is located in a cell at the edge of an unavailable area, the UE is triggered to reselect or handover to a cell of the available area by adjusting the reselection criterion and the signal value of the measurement report, so that normal service can be provided.

Fig. 6 illustrates a processing procedure after the UE successfully registers to the network and receives a Service area list (Service area list) delivered by the network, as shown in fig. 6, including the following steps 601 to 605:

601, UE successfully registers to a network, and the network issues a service area list;

step 602, the Non-Access stratum (NAS) notifies the Access Stratum (AS) of a TAI list of available regions or unavailable regions in the list;

step 603, judging whether the cell is in an available area currently by the NAS; if yes, go to step 604; otherwise, go to step 605;

step 604, the NAS enters a 5GMM-REGISTERED.NORMAL-SERVICE state;

in step 605, the NAS enters a 5GMM-REGISTERED. NON-ALLOWED-SERVICE state.

Fig. 7 depicts the provision of normal service guarantees and recovery mechanisms when a UE receives a higher layer initiated service request, the UE being at the edge of the service area restriction. As shown in fig. 7, in the embodiment of the present application, the UE receives a service request from a higher layer, and determines according to the current NAS state:

if the NAS is in the 5GMM-REGISTERED. NORMAL-SERVICE state:

(1) if the RRC layer is in an idle state, a service request (service request) process is triggered, so that the RRC layer enters a connected state.

(2) If the RRC layer is in the connection state, the RRC layer is informed to keep the cell of the TAI in the available area as much as possible, and the service process is initiated normally. When the RRC layer receives an indication of a cell that maintains the TAI in the available area as much as possible, the RRC layer performs screening on the measured neighboring cells, and if the cell belongs to the unavailable area TAI, performs weighting processing on its RSRP (the weighting coefficient may be 1.2, for example, the RSRP of the neighboring cell is-80 dbm, and the weighted RSRP is-80 × 1.2 — 96dbm), which enables the UE to reside in the cell of the available area TAI as much as possible and maintain continuity of the service if the UE is at the edge of the service area restriction.

If NAS is in 5GMM-REGISTERED. NON-ALLOWED-SERVICE state:

since normal service cannot be performed in this state, the NAS suspends the service of the higher layer and notifies the RRC layer of an attempt to perform cell change restricted by the restricted service area.

(1) If the RRC layer is in an idle state, the RRC layer performs cell reselection under the restricted service area, the RRC layer performs screening on the measured neighboring cells, and if the cells belong to the unavailable area TAI, the measured neighboring cells are weighted (the weighting coefficient may be 1.2, for example, the RSRP of the neighboring cell is-80 dbm, and the weighted RSRP is-80 × 1.2 — 96dbm), and if the UE is at the edge of the restricted service area, it will start measurement and reselection to the cells of the available area TAI more easily. If the newly camped cell belongs to the cell of the available area TAI, the NAS establishes the RRC layer connection and processes the previously suspended service request.

(2) If the RRC layer is in a connected state, the RRC layer filters the measured neighboring cells, and if the cells belong to the available area TAI, performs weighting processing on the RSRP of the cells (the weighting coefficient may be 0.8, for example, the RSRP of the neighboring cell is-110 dbm, and the weighted RSRP is-110 × 0.8 — 88dbm), which may more easily trigger the network to switch the UE to the cell of the available area TAI if the UE is at the edge of the serving area restriction. And if the switched cell belongs to the cell of the available area TAI, the RRC layer informs the NAS of the new cell information, and the NAS restores the previously suspended service request on the new cell.

In the embodiment of the present application, all the implementations can be completed only by the cooperative work of the non-access stratum and the access stratum, and the complexity of software implementation is low, but the performance improvement is very obvious, for example, as shown in table 3.

TABLE 3

In the embodiment of the application, under the condition that the network is configured with service area limitation, the reselection and handover strategies of preferential residing of the cell in the available area are skillfully changed, so that the possibility that the UE resides in the cell in the available area to provide data service is ensured to the maximum extent. The scheme is particularly important for improving the user experience under the scene that the 5G network is configured with the service area limitation.

In some embodiments, in an idle state, when the UE is camped in an unavailable cell, the UE detects an available neighboring cell, and immediately starts measurement of the neighboring cell, thereby performing cell reselection; if the reselection is successful, recording the reselected cell information, and when the network selection is started next time, improving the priority of the cell so as to rapidly reside and provide normal service.

In some embodiments, in view of the generality and security of the present solution, the solution may also be applied to a cell reselection scheme in an access restriction scenario.

Based on the foregoing embodiments, an embodiment of the present application provides a cell measurement apparatus, which includes modules and units included in the modules, and can be implemented by a processor; of course, the implementation can also be realized through a specific logic circuit; in implementation, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

Fig. 8 is a schematic structural diagram of a cell measurement apparatus according to an embodiment of the present application, and as shown in fig. 8, a cell measurement apparatus 80 includes:

a determining module 801, configured to determine an original measurement result obtained based on cell measurement in a scenario where the UE receives a TAI list sent by a network device to indicate an available area or an unavailable area;

a modification module 802, configured to modify the original measurement result to obtain a target measurement result; wherein the target measurement result is used for cell handover or cell reselection, and the probability of the UE being handed over or reselected to a cell of the available area can be increased compared to the original measurement result.

In some embodiments, the modification module 802 is to: if the service cell of the UE belongs to the unavailable area and the RRC layer is in a connected state or an idle state, modifying the original measurement result; and/or modifying the original measurement result if the serving cell of the UE belongs to the available region and the RRC layer is in a connected state or an idle state.

In some embodiments, the raw measurements include at least one of: the UE calculates a first receiving signal measurement value of the adjacent cell based on the cell measurement, a first receiving signal calculation value of the adjacent cell based on the first receiving signal measurement value, a second receiving signal measurement value of the service cell based on the cell measurement, and a second receiving signal calculation value of the service cell based on the second receiving signal measurement value.

In some embodiments, the modification module 802 is to: reducing the first received signal measurement value or the first received signal calculation value of a neighbor cell belonging to the unavailable region; and/or increasing the first received signal measurements or first received signal calculations of neighbouring cells belonging to the available area; and/or, if the serving cell of the UE belongs to a cell of an unavailable area, reducing the second received signal measurement value or the second received signal calculation value.

In some embodiments, the modification module 802 is to: determining a second received signal measurement value of a serving cell of the UE under the condition that the serving cell belongs to the available area and an RRC layer is in a connected state; reducing a first received signal measurement value or a first received signal calculation value of a neighboring cell belonging to the unavailable region according to the second received signal measurement value; wherein the amount of decrease in the first received signal measurement is positively correlated with the second received signal measurement; the amount of decrease in the first received signal calculation is positively correlated with the second received signal measurement.

In some embodiments, said reducing the first received signal measurements of neighbor cells belonging to the unavailable region based on the second received signal measurements comprises: determining a first amount to be reduced corresponding to the second received signal measurement value according to a first mapping relation; wherein, in the first mapping, the second received signal measurement is positively correlated with the first amount to be reduced; lowering a first received signal measurement value of a neighbor cell belonging to the unavailable region by the first amount to be decremented;

in some embodiments, said reducing the first received signal calculation value of the neighbor cell belonging to the unavailable region based on the second received signal measurement value comprises: determining a second received signal calculation value of the serving cell according to the second received signal measurement value; determining a second to-be-reduced quantity corresponding to the second received signal calculation value according to a second mapping relation; wherein, in the second mapping relationship, the second received signal calculation value is positively correlated with the second amount to be reduced; and reducing the first received signal calculation value of the adjacent cell belonging to the unavailable area by the second decrement.

In some embodiments, in a case that a serving cell of the UE belongs to the unavailable region and an RRC layer is in a connected state or an idle state, the increasing a first received signal measurement value or a first received signal calculation value of a neighbor cell belonging to the available region includes: determining a second received signal measurement value for the serving cell; increasing a first received signal measurement value or a first received signal calculation value of a neighboring cell belonging to the available region according to the second received signal measurement value; wherein an amount of increase in the first received signal measurement is positively correlated with the second received signal measurement; the first received signal calculation value is increased by a positive correlation with the second received signal measurement value.

In some embodiments, said increasing the first received signal measurement or first received signal calculation of a neighbor cell belonging to the available area based on the second received signal measurement comprises: determining a first to-be-increased amount corresponding to the second received signal measurement value according to a third mapping relation; wherein, in the third mapping, the second received signal measurement is positively correlated with the first to-be-incremented quantity; increasing a first received signal measurement of a neighbor cell belonging to the usable area by the first to-be-incremented amount;

in some embodiments, said increasing a first received signal calculation value of a neighbor cell belonging to said available area based on said second received signal measurement value comprises: determining a second received signal calculation value of the serving cell according to the second received signal measurement value; determining a second to-be-increased amount corresponding to the second received signal calculation value according to a fourth mapping relation; wherein, in the fourth mapping relationship, the second received signal calculation value is positively correlated with the second waiting increment; and increasing the first received signal calculation value of the adjacent cell belonging to the available area by the second waiting increment.

In some embodiments, the first and second received signal measurement values are values of a parameter RSRP or RSRQ; the first received signal calculation value and the second received signal calculation value are parameters Srxlev or Squal or R_aThe value of nk.

In some embodiments, the cell measurement apparatus 80 further comprises an initiating module for: and if the service cell of the UE belongs to the unavailable area, starting cell measurement.

In some embodiments, the cell measurement apparatus 80 further comprises a recording module for: if the UE reselects from the serving cell belonging to the unavailable area to the target neighbor cell belonging to the available area, storing the cell information of the target neighbor cell into the UE;

in some embodiments, if the UE receives information prohibiting initiating access to a serving cell, or if the UE receives information denying access after initiating access to the serving cell, performing the step of performing the above method on a neighboring cell or a serving cell belonging to the unavailable area on an original measurement result of the serving cell; and/or performing the steps as described in the above method for the neighbor cells belonging to the available area on the raw measurement results of the neighbor cells.

The above description of the apparatus embodiments, similar to the above description of the method embodiments, has similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

It should be noted that, in the embodiment of the present application, the division of the module by the cell measurement apparatus is schematic, and is only a logical function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, may exist alone physically, or may be integrated into one unit by two or more units. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. Or may be implemented in a combination of software and hardware.

It should be noted that, in the embodiment of the present application, if the method described above is implemented in the form of a software functional module and sold or used as a standalone product, it may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a user equipment to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.

Fig. 9 is a schematic diagram of a hardware entity of the user equipment in the embodiment of the present application, and as shown in fig. 9, the user equipment 90 includes a memory 901 and a processor 902, where the memory 901 stores a computer program that can be executed on the processor 902, and the processor 902 executes the computer program to implement the steps in the method provided in the embodiment.

It should be noted that the Memory 901 is configured to store instructions and applications executable by the processor 902, and may also buffer data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or processed by each module in the processor 902 and the user equipment 90, and may be implemented by a FLASH Memory (FLASH) or a Random Access Memory (RAM).

Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps in the methods provided in the above embodiments.

Embodiments of the present application provide a computer program product containing instructions which, when run on a computer, cause the computer to perform the steps of the method provided by the above-described method embodiments.

Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium, the storage medium and the device of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" or "some embodiments" means that a particular feature, structure or characteristic described in connection with the embodiments is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. The foregoing description of the various embodiments is intended to highlight various differences between the embodiments, and the same or similar parts may be referred to each other, and for brevity, will not be described again herein.

The term "and/or" herein is merely an association relationship describing an associated object, and means that three relationships may exist, for example, object a and/or object B, may mean: the object A exists alone, the object A and the object B exist simultaneously, and the object B exists alone.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. The above-described embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice, such as: multiple modules or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or modules may be electrical, mechanical or other.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules; can be located in one place or distributed on a plurality of network units; some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may be separately regarded as one unit, or two or more modules may be integrated into one unit; the integrated module can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.

Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a user equipment to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.

The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments. Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict. The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.

The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of cell measurement, the method comprising:

under the condition that User Equipment (UE) receives a Tracking Area Indication (TAI) list which is issued by network equipment and used for indicating an available area or an unavailable area, determining an original measurement result obtained based on cell measurement;

modifying the original measurement result to obtain a target measurement result; wherein the target measurement result is capable of increasing a probability that the UE switches or reselects to a cell of the available area compared to the original measurement result.

2. The method of claim 1, wherein said modifying the raw measurement comprises:

if the service cell of the UE belongs to the unavailable area and the Radio Resource Control (RRC) layer is in a connected state or an idle state, modifying the original measurement result; and/or

And if the serving cell of the UE belongs to the available region and the RRC layer is in a connected state or an idle state, modifying the original measurement result.

3. The method of claim 2, wherein the raw measurement comprises at least one of:

the UE calculates a first receiving signal measurement value of the adjacent cell based on the cell measurement, a first receiving signal calculation value of the adjacent cell based on the first receiving signal measurement value, a second receiving signal measurement value of the service cell based on the cell measurement, and a second receiving signal calculation value of the service cell based on the second receiving signal measurement value.

4. The method of claim 3, wherein said modifying the raw measurement comprises:

reducing the first received signal measurement value or the first received signal calculation value of a neighbor cell belonging to the unavailable region; and/or

Increasing the first received signal measurement value or the first received signal calculation value of a neighbor cell belonging to the available area; and/or

And if the serving cell of the UE belongs to the cell of the unavailable area, reducing the second received signal measured value or the second received signal calculated value of the serving cell.

5. The method of claim 4, wherein in case that the serving cell of the UE belongs to the available region and an RRC layer is in a connected state or an idle state,

the reducing of first received signal measurements of neighbor cells belonging to the unavailable region comprises:

determining a second received signal measurement value for the serving cell;

reducing a first received signal measurement value or a first received signal calculation value of a neighboring cell belonging to the unavailable region according to the second received signal measurement value;

wherein the amount of decrease in the first received signal measurement is positively correlated with the second received signal measurement; the amount of decrease in the first received signal calculation is positively correlated with the second received signal measurement.

6. The method of claim 5, wherein the reducing the first received signal measurements of neighbor cells belonging to the unavailable region based on the second received signal measurements comprises:

determining a first amount to be reduced corresponding to the second received signal measurement value according to a first mapping relation; wherein, in the first mapping, the second received signal measurement is positively correlated with the first amount to be reduced; lowering a first received signal measurement value of a neighbor cell belonging to the unavailable region by the first amount to be decremented;

the reducing, according to the second received signal measurement value, a first received signal calculation value of a neighboring cell belonging to the unavailable region includes:

determining a second received signal calculation value of the serving cell according to the second received signal measurement value;

determining a second to-be-reduced quantity corresponding to the second received signal calculation value according to a second mapping relation; wherein, in the second mapping relationship, the second received signal calculation value is positively correlated with the second amount to be reduced; and reducing the first received signal calculation value of the adjacent cell belonging to the unavailable area by the second decrement.

7. The method of claim 4, wherein in case that the serving cell of the UE belongs to the unavailable region and an RRC layer is in a connected state or an idle state,

the increasing of the first received signal measurement value or the first received signal calculation value of the neighboring cell belonging to the available area includes:

determining a second received signal measurement value for the serving cell;

increasing a first received signal measurement value or a first received signal calculation value of a neighboring cell belonging to the available region according to the second received signal measurement value;

8. The method of claim 7, wherein increasing the first received signal measurement or first received signal calculation of the neighbor cell belonging to the available region based on the second received signal measurement comprises:

determining a first to-be-increased amount corresponding to the second received signal measurement value according to a third mapping relation; wherein, in the third mapping, the second received signal measurement is positively correlated with the first to-be-incremented quantity; increasing a first received signal measurement of a neighbor cell belonging to the usable area by the first to-be-incremented amount;

the increasing a first received signal calculation value of a neighboring cell belonging to the available region according to the second received signal measurement value includes:

determining a second to-be-increased amount corresponding to the second received signal calculation value according to a fourth mapping relation; wherein, in the fourth mapping relationship, the second received signal calculation value is positively correlated with the second waiting increment; and increasing the first received signal calculation value of the adjacent cell belonging to the available area by the second waiting increment.

9. The method of any of claims 3 to 8, wherein the first and second received signal measurement values are values of reference signal received power, RSRP, or reference signal received quality, RSRQ;

the first received signal calculation value and the second received signal calculation value are values of a cell selection reception level Srxlev or a cell selection quality Squal or a Rank.

10. The method according to any one of claims 1 to 9, further comprising:

and if the service cell of the UE belongs to the unavailable area, starting cell measurement.

11. The method of claim 1, further comprising:

and if the UE reselects from the serving cell belonging to the unavailable area to the target neighbor cell belonging to the available area, storing the cell information of the target neighbor cell into the UE.

12. The method of claim 1, further comprising:

performing the steps of any one of claims 4 to 9 on neighbor cells or serving cells belonging to the unavailable area on the raw measurement result of the serving cell if the UE receives information prohibiting initiation of access to the serving cell or if the UE receives information denying access after initiating access to the serving cell; and/or the presence of a gas in the gas,

performing the steps of any of claims 4 to 9 on neighbor cells belonging to the available area as in the raw measurement results of neighbor cells.

13. A cell measurement apparatus, comprising:

a determining module, configured to determine an original measurement result obtained based on cell measurement in a scenario where a user equipment UE receives a tracking area indication TAI list issued by a network device to indicate an available area or an unavailable area;

the modification module is used for modifying the original measurement result to obtain a target measurement result; wherein the target measurement result is capable of increasing a probability that the UE switches or reselects to a cell of the available area compared to the original measurement result.

14. A user equipment comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor implements the method of any one of claims 1 to 12 when executing the program.

15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 12.