CN103581997B - The method and apparatus of mobile management - Google Patents

Abstract

Embodiments of the present invention provide a mobility management method and device. The method includes: determining a first measurement value based on a first reference signal used by a first cell, and determining a second measurement value based on a second reference signal used by a second cell; according to the first measurement value, the second measurement value and an offset value to perform cell selection, cell reselection, or trigger reporting of measurement results; wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or The first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or both the first reference signal and the second reference signal include a CSI-RS. In this way, in the cell scenario where the CSI-RS is introduced in the mobility management, the UE can select a more suitable cell.

Description

Method and device for mobility management

technical field

The embodiments of the present invention relate to the technical field of communications, and more specifically, to a method and device for mobility management.

Background technique

In the LTE (Long Term Evolution, long-term evolution) system, with the introduction of Comp (Coordinated multiple points, coordinated multi-point transmission) technology and new carriers, the CSI-RS (Channel State Information-Reference Signal, channel state information reference signal) signal will Gradually replace the CRS (Common Reference Signal, common reference signal) signal, which is used for channel quality estimation and encoding/decoding of transmission point downlink signals in the Comp scenario, or for the control domain and data domain of downlink signals using new carrier type cells channel estimation and encoding/decoding. The CSI-RS signal is introduced into the mobility management, the cell selection/reselection of the UE (User Equipment, user equipment) in the idle state, or the cell handover of the UE in the connected state, etc., also follow the measurement mechanism based on the CRS signal for measurement and judgment. For example, for an idle state UE, measure the RSRP (Reference Signal Receiving Power, Reference Signal Received Power)/RSRQ (Reference Signal Receiving Quality, Reference Signal Received Quality) signal quality of the CSI-RS signal, use the S criterion for cell selection, or use the R Criteria for cell reselection. For another example, the base station sends a measurement configuration to the UE, where the measurement configuration includes a measurement object, a measurement report trigger condition, and a measurement result report. The UE obtains the measurement result by using the existing measurement mechanism, and reports the measurement result to the base station, so that the base station executes a cell handover command to the UE.

When the UE works in the scenario where the old version cells based on CRS signals and the cells based on CSI-RS signals are mixed, the accuracy of the measurement is affected due to the inconsistency of the configuration information of the CRS signals and the CSI-RS signals.

Contents of the invention

Embodiments of the present invention provide a mobility management method and device, which can enable a UE to select a more suitable cell.

In a first aspect, a mobility management method is provided, including: determining a first measurement value based on a first reference signal used by a first cell, and determining a second measurement value based on a second reference signal used by a second cell; according to the The first measurement value, the second measurement value, and the offset value are used to perform cell selection, cell reselection, or trigger reporting of measurement results; wherein, the first reference signal includes a common reference signal CRS, and the second reference The signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or both the first reference signal and the second reference signal include a CSI-RS RS.

In the first possible implementation manner, the specific implementation may be:

The method of setting the offset value includes at least one of the following methods: setting according to the priority of the cell, setting according to the type of the first reference signal and the type of the second reference signal, and setting according to the type of the first reference signal The configuration parameters of the signal and the configuration parameters of the second reference signal are set according to the different-frequency characteristics of the first cell and the second cell.

According to the first possible implementation, in the second possible implementation, the specific implementation may be:

The configuration parameters include at least one of the following: the number of ports of the reference signal, the subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal. The sequence configuration of the reference signal includes a scrambling initialization parameter.

With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in a third possible implementation manner, the value and offset value to perform cell selection, cell reselection, or trigger reporting of measurement results. The specific implementation can be as follows:

Adding the sum of the first measured value and the offset value to the hysteresis value to obtain the measured value of the first cell, the second measured value is the measured value of the second cell, according to the Perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measured value and the measured value of the second cell, or perform cell selection or cell reselection according to the measured value of the first cell and the second cell The measurement value of the second cell triggers the reporting of the measurement result; or

adding the first measured value to the hysteresis value to obtain the measured value of the first cell, adding the second measured value to the offset value to obtain the measured value of the second cell, according to the measured value of the first cell Cell selection or cell reselection is performed according to the priority order of the first cell and the second cell determined by the measured value of the first cell and the measured value of the second cell, or according to the measured value of the first cell and the second cell The measurement value of the cell triggers the reporting of the measurement result; or

adding the offset value to the measurement value determined according to the CSI-RS in the first measurement value and the second measurement value, or adding the offset value to the first measurement value and the second measurement value In the measured value determined according to the CRS, the measured value of the first cell and the measured value of the second cell are obtained, and the measured value of the first cell determined by the measured value of the first cell and the measured value of the second cell is obtained. performing cell selection or cell reselection according to the priority sequence of the second cell, or triggering the reporting of the measurement result according to the measurement value of the first cell and the measurement value of the second cell.

In combination with the first aspect or the first possible implementation manner or the second possible implementation manner or the third possible implementation manner of the first aspect, in a fourth possible implementation manner, according to the first measurement value, the second measurement value and offset value, before performing cell selection, cell reselection, or triggering the reporting of measurement results, the specific implementation may be:

receiving the offset value notified by the base station; or setting the offset value in advance.

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation or the third possible implementation or the fourth possible implementation, in the fifth possible implementation , the first cell is a serving cell, and the second cell is a neighbor cell.

In a second aspect, a mobility management method is provided, including: determining a third measurement value of the first cell based on a first reference signal used by the first cell, and determining a second cell based on a second reference signal used by the second cell the fourth measurement value; when the duration of the comparison result between the third measurement value and the fourth measurement value is greater than or equal to the time threshold value, according to the third measurement value and the fourth measurement value The measured value performs cell selection, cell reselection, or triggers the reporting of measurement results; the time threshold setting method includes at least one of the following methods: setting according to the priority of the cell, according to the first cell used by the first cell The type of a reference signal and the type of the second reference signal used by the second cell are set according to the configuration parameters of the first reference signal and the configuration parameters of the second reference signal, and according to the first The inter-frequency characteristics of the cell and the second cell are set; wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal The signal includes a CSI-RS, and the second reference signal includes a CRS; or both the first reference signal and the second reference signal include a CSI-RS.

In the first possible implementation manner, the specific implementation may be:

The configuration parameters include at least one of the following: the number of ports of the reference signal, the subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal. The sequence configuration of the reference signal includes a scrambling initialization parameter.

In combination with the second aspect or the first possible implementation of the second aspect, in the second possible implementation, the specific implementation may be:

receiving the time threshold notified by the base station; or setting the time threshold in advance.

In combination with the second aspect or the first possible implementation manner or the second possible implementation manner of the second aspect, in the third possible implementation manner, the specific implementation may be:

The first cell is a serving cell, and the second cell is a neighbor cell.

In a third aspect, a mobility management method is provided, including: determining a fifth measurement value of the first cell based on a first reference signal used by the first cell; when the comparison result of the fifth measurement value and the first threshold When the continuous time is greater than or equal to the time threshold value, perform cell selection, cell reselection or trigger the reporting of measurement results according to the fifth measurement value; the time threshold value setting method includes at least one of the following methods One: setting according to the priority of the cell, setting according to the type of the reference signal of the cell, setting according to the configuration parameters of the reference signal used by the cell, and setting according to the different frequency characteristics between the cells; wherein, the first The reference signals include channel state information reference signals CSI-RS.

In the first possible implementation manner, the specific implementation may be:

Determine a sixth measurement value of the second cell based on the second reference signal used by the second cell; when the comparison result between the fifth measurement value and the first threshold and the comparison result between the sixth measurement value and the second threshold continue When the constant time is greater than or equal to the time threshold, perform cell selection, cell reselection, or trigger reporting of measurement results according to the fifth measurement value and the sixth measurement value.

In combination with the third aspect or the first possible implementation of the third aspect, in the second possible implementation, the specific implementation may be:

receiving the time threshold notified by the base station; or setting the time threshold in advance.

In a fourth aspect, a mobility management method is provided, including: a second cell receives configuration information of a third reference signal used by the first cell sent by a first cell; The configuration information of the three reference signals configures a fourth reference signal used by the second cell; wherein, both the third reference signal and the fourth reference signal include a channel state information reference signal CSI-RS.

In a first possible implementation manner, the second cell configures the fourth reference signal used by the second cell according to the configuration information of the third reference signal, and the specific implementation may be as follows:

Configure the configuration parameters of the fourth reference signal; the configuration parameters of the fourth reference signal are the same as the configuration parameters of the third reference signal, and the configuration parameters include at least one of the following: the number of ports of the reference signal, the number of reference signals The subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal. The sequence configuration of the reference signal includes a scrambling initialization parameter.

In a fifth aspect, a user equipment is provided, including: a determining unit configured to determine a first measurement value based on a first reference signal used by a first cell, and determine a second measurement value based on a second reference signal used by a second cell; A control unit, configured to perform cell selection, cell reselection, or trigger reporting of measurement results according to the first measurement value determined by the determination unit, the second measurement value and the offset value determined by the determination unit; Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS ; or both the first reference signal and the second reference signal include CSI-RS.

In a first possible implementation manner, the manner of setting the offset value includes at least one of the following manners: setting according to the priority of the cell, according to the type of the first reference signal and the type of the second reference signal type, set according to the configuration parameters of the first reference signal and the configuration parameters of the second reference signal, and set according to the inter-frequency characteristics of the first cell and the second cell.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the control unit is specifically configured to:

Adding the sum of the first measured value and the offset value to the hysteresis value to obtain the measured value of the first cell, the second measured value is the measured value of the second cell, according to the Perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measured value and the measured value of the second cell, or perform cell selection or cell reselection according to the measured value of the first cell and the second cell The measurement value of the second cell triggers the reporting of the measurement result; or

It is specifically used for: adding the first measured value to the hysteresis value to obtain the measured value of the first cell, adding the second measured value to the offset value to obtain the measured value of the second cell, according to the first measured value performing cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measurement value of a cell and the measurement value of the second cell, or performing cell selection or cell reselection according to the measurement value of the first cell and the priority order of the second cell The measurement value of the second cell triggers reporting of measurement results; or

Specifically used for: adding the offset value to the measurement value determined according to the CSI-RS in the first measurement value and the second measurement value, or adding the offset value to the first measurement value and the first measurement value and Among the measured values determined according to the CRS in the second measured value, the measured value of the first cell and the measured value of the second cell are obtained, and according to the measured value determined by the measured value of the first cell and the measured value of the second cell, Perform cell selection or cell reselection according to the priority order of the first cell and the second cell, or trigger reporting of measurement results according to the measurement value of the first cell and the measurement value of the second cell.

With reference to the fifth aspect or the first possible implementation manner or the second possible implementation manner of the fifth aspect, in a third possible implementation manner, the user equipment further includes: a receiving unit configured to receive a notification from the base station or the control unit is further configured to: preset the offset value.

In a sixth aspect, a user equipment is provided, including: a determining unit configured to determine a third measurement value of the first cell based on a first reference signal used by the first cell, and determine a third measurement value based on a second reference signal used by the second cell. The fourth measurement value of the second cell; a control unit configured to be used when the duration of the comparison result between the third measurement value and the fourth measurement value determined by the determination unit is greater than or equal to a time threshold , performing cell selection, cell reselection, or triggering the reporting of measurement results according to the third measured value and the fourth measured value; the way of setting the time threshold includes at least one of the following ways: according to the The priority is set according to the type of the first reference signal used by the first cell and the type of the second reference signal used by the second cell, according to the configuration parameters of the first reference signal and the type of the second reference signal The configuration parameters of the two reference signals are set according to the different-frequency characteristics of the first cell and the second cell. Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS ; or both the first reference signal and the second reference signal include CSI-RS.

In a first possible implementation manner, the user equipment further includes:

The receiving unit is configured to receive the time threshold value notified by the base station; or the control unit is further configured to: preset the time threshold value.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the first cell is a serving cell, and the second cell is a neighbor cell.

In a seventh aspect, a user equipment is provided, including: a determining unit configured to determine a fifth measurement value of the first cell based on a first reference signal used by the first cell; a control unit configured to determine when the fifth measurement value When the continuous time of the comparison result with the first threshold value is greater than or equal to the time threshold value, perform cell selection, cell reselection or trigger the reporting of the measurement result according to the fifth measurement value; the time threshold value setting The method includes at least one of the following methods: setting according to the priority of the cell, setting according to the type of the reference signal of the cell, setting according to the configuration parameters of the reference signal used by the cell, and setting according to the different frequency characteristics between the cells ; Wherein, the first reference signal includes a channel state information reference signal CSI-RS.

In the first possible implementation manner, the determination unit is also used for:

determining a sixth measurement value of the second cell based on a second reference signal used by the second cell;

The control unit is further configured to: when the duration of the comparison result between the fifth measurement value and the first threshold value and the comparison result between the sixth measurement value and the second threshold value is greater than or equal to a time threshold and performing cell selection, cell reselection, or triggering reporting of measurement results according to the fifth measurement value and the sixth measurement value.

With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the user equipment further includes:

The receiving unit is configured to receive the time threshold value notified by the base station; or the control unit is further configured to: preset the time threshold value.

In an eighth aspect, a network side device is provided, including: a receiving unit, configured for a second cell to receive configuration information of a third reference signal used by the first cell sent by the first cell; and a configuration unit, configured for the The second cell configures a fourth reference signal used by the second cell according to the configuration information of the third reference signal received by the receiving unit; wherein the third reference signal and the fourth reference signal are both It includes channel state information reference signal CSI-RS.

In a first possible implementation manner, the configuration unit is specifically used to:

Configure the configuration parameters of the fourth reference signal; the configuration parameters of the fourth reference signal are the same as the configuration parameters of the third reference signal, and the configuration parameters include at least one of the following: the number of ports of the reference signal, the number of reference signals The subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal.

Through the above solution, the user equipment in the embodiment of the present invention measures each cell, obtains the measurement value of each cell, and performs cell selection, cell reselection or triggers reporting of measurement results according to the measurement value and offset value of each cell. In this way, in the cell scenario where the CSI-RS is introduced in the mobility management, the UE can select a more suitable cell.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a flowchart of a mobility management method according to an embodiment of the present invention.

Fig. 2 is a flowchart of a mobility management method according to another embodiment of the present invention.

Fig. 3 is a flowchart of a mobility management method according to another embodiment of the present invention.

Fig. 4 is a schematic diagram of a mobility management method according to an embodiment of the present invention.

Fig. 5 is a flowchart of a mobility management method according to another embodiment of the present invention.

Fig. 6 is a structural block diagram of a user equipment according to an embodiment of the present invention.

Fig. 7 is a structural block diagram of user equipment according to another embodiment of the present invention.

Fig. 8 is a structural block diagram of user equipment according to another embodiment of the present invention.

Fig. 9 is a structural block diagram of a network side device according to another embodiment of the present invention.

Figure 10 is a block diagram of an apparatus according to one embodiment of the present invention.

Fig. 11 is a structural block diagram of a user equipment according to an embodiment of the present invention.

Fig. 12 is a structural block diagram of user equipment according to another embodiment of the present invention.

Fig. 13 is a structural block diagram of user equipment according to another embodiment of the present invention.

Fig. 14 is a structural block diagram of a network side device according to another embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The technical scheme of the present invention can be applied to various communication systems, such as: Global System for Mobile Communications (GSM, Global System of Mobile communication), Code Division Multiple Access (CDMA, Code Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA , Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS, General Packet Radio Service), Long Term Evolution (LTE, Long Term Evolution), etc.

User equipment (UE, User Equipment), also known as mobile terminal (Mobile Terminal), mobile user equipment, etc., can communicate with one or more core networks via a radio access network (for example, RAN, Radio Access Network) , user equipment can be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which communicate with The radio access network exchanges language and/or data.

The network side equipment can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutionNode B) in LTE , the present invention is not limited thereto.

Fig. 1 is a flowchart of a mobility management method according to an embodiment of the present invention. The method in FIG. 1 is executed by the UE.

101. Determine a first measurement value based on a first reference signal used by a first cell, and determine a second measurement value based on a second reference signal used by a second cell.

102. Perform cell selection, cell reselection, or trigger reporting of measurement results according to the first measurement value, the second measurement value, and the offset value.

Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or the first reference signal and the second Both reference signals include CSI-RS.

It should be understood that the first reference signal and the second reference signal may include multiple ones, and the measurement values obtained based on different reference signals may be weighted in the same cell to determine the measurement value of the cell. The embodiments of the present invention are not limited.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and performs cell selection, or cell reselection, or triggers reporting of measurement results according to the measurement value and offset value of each cell. In this way, in the cell scenario where the CSI-RS is introduced in the mobility management, the UE can select a more suitable cell.

Optionally, as an embodiment, the first cell may be a serving cell, or may be a neighbor cell. Correspondingly, the second cell may be a neighbor cell or a serving cell. It should be understood that the present invention is not limited thereto. It should also be noted that, the embodiment of the present invention does not limit the number of neighbor cells.

Optionally, as another embodiment, in step 102, the way of setting the offset value may include at least one of the following ways: setting according to the priority of the cell, according to the configuration parameters of the first reference signal and the second The configuration parameter of the reference signal is set, and the setting is performed according to the different-frequency characteristics of the first cell and the second cell, and the like. It should be noted that the offset value can be positive or negative. It should be understood that the reasons for introducing the offset value in the embodiments of the present invention and the value range of the offset value are not limited. Further, the above configuration parameters may include one or any combination of the following: the number of ports of the reference signal, the subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal. The sequence configuration of the reference signal includes a scrambling initialization parameter. It should also be understood that the embodiment of the present invention does not limit the selection of configuration parameters.

Optionally, as another embodiment, in step 102, the sum of the first measurement value and the offset value plus the hysteresis value can be used to obtain the measurement value of the first cell, and the second measurement value is the measurement value of the second cell value, perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measurement value of the first cell and the measurement value of the second cell, or perform cell selection or cell reselection according to the measurement value of the first cell and the second cell The measurement value of the cell triggers the reporting of the measurement result.

Optionally, as another embodiment, in step 102, the first measured value can be added to the hysteresis value to obtain the measured value of the first cell, and the second measured value can be added to the offset value to obtain the measured value of the second cell value, perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measurement value of the first cell and the measurement value of the second cell, or perform cell selection or cell reselection according to the measurement value of the first cell and the priority order of the second cell The measurement value of the second cell triggers the reporting of the measurement result.

Optionally, as another embodiment, in step 102, the offset value may be added to the first measured value and the second measured value according to the measured value determined by the CSI-RS, and the offset value may also be added to Among the first measured value and the second measured value determined according to the CRS, the measured value of the first cell and the measured value of the second cell are obtained, according to the measured value determined by the measured value of the first cell and the measured value of the second cell The priority order of the first cell and the second cell is used for cell selection or cell reselection, or the reporting of the measurement results is triggered according to the measurement value of the first cell and the measurement value of the second cell.

In one implementation, if the first reference signal includes CSI-RS, the sum of the first measurement value and the offset value plus the hysteresis value can be used to obtain the measurement value of the first cell; if the first reference signal does not include For CSI-RS, the first measured value plus the hysteresis value is the measured value of the first cell. If the second reference signal includes CSI-RS, then add the second measurement value to the offset value to obtain the measurement value of the second cell, if the second reference signal does not include CSI-RS, then the second measurement value is that of the first cell Measurements. Cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measurement value of the first cell and the measurement value of the second cell, or according to the measurement value of the first cell and the measurement value of the second cell value to trigger reporting of measurement results.

In another implementation, if the first reference signal includes CRS, the sum of the first measurement value and the offset value plus the hysteresis value can be used to obtain the measurement value of the first cell; if the first reference signal does not include CRS , then the first measured value plus the hysteresis value is the measured value of the first cell; if the second reference signal includes CRS, then add the second measured value to the offset value to obtain the measured value of the second cell, if the second reference signal If CRS is not included, the second measurement value is the measurement value of the first cell; the cell selection or cell selection is performed according to the priority order of the first cell and the second cell determined by the measurement value of the first cell and the measurement value of the second cell Reselection, or trigger reporting of measurement results according to the measurement value of the first cell and the measurement value of the second cell.

It should be understood that, in the embodiment of the present invention, which cell's measurement value to add the offset value to, or which reference signal to obtain the measurement value based on which the offset value is added falls within the scope of the embodiment of the present invention.

A non-limiting example of the mobility management method according to the embodiment of the present invention will be described in more detail below in combination with specific embodiments. It should be noted that these examples are only intended to help those skilled in the art better understand the embodiments of the present invention, rather than limiting the scope of the present invention.

It should be understood that whether a cell is a serving cell or a neighbor cell, whether a cell uses a CRS or a CSI-RS signal, or whether the cells have same-frequency characteristics or different-frequency characteristics are merely exemplary and not limiting to the embodiments of the present invention. The following embodiments take two cells as an example. It should also be understood that the embodiment of the present invention does not limit the number of neighbor cells, and the number of cells may be more than two.

For example, it is assumed that the first cell is a serving cell and uses a CSI-RS signal for measurement, and the second cell is a neighbor cell and uses a CRS signal for measurement. During the cell reselection process of the UE in the idle state, according to the R criterion, the received signal power value Qmeas,s of the serving cell is obtained based on the CSI-RS signal measurement used by the serving cell, and Qmeas,s is used as the first measurement value R1, The received signal code power value Qmeas,n of the neighbor cell is obtained based on the measurement of the CRS signal used by the neighbor cell, and Qmeas,n is used as the second measurement value R2.

In one implementation, because the configuration parameters of the CSI-RS signal and the configuration parameters of the CRS signal are inconsistent, for example, the time periods for the occurrence of the CSI-RS signal and the CRS signal are different, correspondingly, an offset value can be added to R1, Further, a hysteresis value may also be added to obtain the measured value Rs of the serving cell. R2 is the measured value Rn of the neighbor cell. If Rn is greater than Rs, the priority order of the neighbor cell is higher than that of the serving cell. Further, when Rn is greater than Rs and the duration is greater than or equal to the time threshold, the UE performs cell reselection and preferentially selects neighboring cells; if Rs is greater than Rn, the priority of the serving cell is higher than that of neighboring cells, and the UE When performing cell reselection, the serving cell is preferentially selected. In this way, the measurement accuracy is improved, so that the UE selects a more suitable cell.

In another implementation, when the serving cell and the neighbor cell have different frequency characteristics, that is, the serving cell and the neighbor cell work on different carrier frequencies, correspondingly, an offset value can be added to R1, and further, A hysteresis value can be added. The offset value may also be introduced taking into account the inconsistency of the reference signal configuration parameters adopted by the serving cell and the neighbor cell and/or the priority order of the cells configured by the operator. In this way, flexibility in mobility management is provided. The manner for the UE to perform cell reselection is as described above and will not be repeated here.

For another example, assume that the first cell is a serving cell and uses CSI-RS signals for measurement, and the second cell is a neighbor cell and uses CSI-RS signals for measurement. During the cell reselection process, the first measurement value R3 is obtained based on the measurement of the CSI-RS signal used by the serving cell, and the second measurement value R4 is obtained based on the measurement of the CRS signal used by the neighbor cell. The serving cell and the neighbor cell may work on the same carrier frequency, or may work on different carrier frequencies. Optionally, because the configuration parameters of the CSI-RS signals used by the serving cell and the neighbor cells are inconsistent, for example, the CSI-RS signal cycle interval of the serving cell is 10ms, and the CSI-RS signal cycle interval of the neighbor cell is 50ms, correspondingly, you can The offset value is added to R3 and/or R4 to obtain the measured value Rs of the serving cell and the measured value Rn of the neighbor cell. It is also possible to introduce offset values at the same time considering whether the serving cell and the neighbor cell work on the same carrier frequency and/or the priority order of the cells configured by the operator. Compare the Rs and Rn values to determine the priority order of the serving cell and neighbor cells for cell selection or cell reselection. Further, when the duration of the comparison result is greater than or equal to the time threshold, the UE can perform cell selection again Or district reselection. Therefore, it can also effectively ensure that the UE selects a cell with good stability. The reason why the embodiment of the present invention introduces the time threshold value and the value range of the time threshold value are not limited.

It should be pointed out that the above example is only an example, and the embodiment of the present invention is not limited thereto, and an offset value may also be introduced when selecting a cell or triggering the reporting of a measurement result.

Optionally, as another embodiment, before step 102, the UE may receive the offset value notified by the base station. For example, the base station can broadcast the offset value, or the base station can send the offset value to the UE by carrying the offset value in RRC signaling, or as a specific parameter of the UE, when the UE changes from the connected state to the idle state, the base station will The offset value is sent to UE. The UE can also preset the offset value. It should be understood that the embodiments of the present invention are not limited thereto.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and performs cell selection, cell reselection or triggers reporting of measurement results according to the measurement value and offset value of each cell. In this way, in the cell scenario where the CSI-RS is introduced in the mobility management, the UE can select a more suitable cell.

Fig. 2 is a flowchart of a mobility management method according to an embodiment of the present invention. The method in Fig. 2 is executed by the UE.

201. Determine a third measurement value of the first cell based on the first reference signal used by the first cell, and determine a fourth measurement value of the second cell based on the second reference signal used by the second cell.

202. When the persistent time of the comparison result between the third measured value and the fourth measured value is greater than or equal to the time threshold, perform cell selection, cell reselection, or trigger measurement according to the third measured value and the fourth measured value reporting of results.

The time threshold setting method includes at least one of the following methods: setting according to the priority of the cell, setting according to the type of the first reference signal used by the first cell and the type of the second reference signal used by the second cell, It is set according to the configuration parameters of the first reference signal and the configuration parameters of the second reference signal, and is set according to the different-frequency characteristics of the first cell and the second cell.

Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or the first reference signal and the second reference signal both include CSI-RS.

It should be understood that the third reference signal and the fourth reference signal may include multiple ones, and the same cell may determine the measurement value of the cell by weighting the measurement values obtained based on different reference signals. The embodiments of the present invention are not limited.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and when the measurement value comparison result of the cell remains unchanged for a time greater than or equal to the time threshold value, the UE performs cell selection, cell reselection or triggers Reporting of measurement results. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

Optionally, as an embodiment, the first cell may be a serving cell, or may be a neighbor cell. Correspondingly, the second cell may be a neighbor cell or a serving cell. It should be understood that the present invention is not limited thereto. It should also be noted that, the embodiment of the present invention does not limit the number of neighbor cells.

Optionally, as another embodiment, the configuration parameters may include one or any combination of the following: number of ports for reference signals, subframe configuration for reference signals, resource configuration for reference signals, and sequence configuration for reference signals. It should also be understood that the embodiment of the present invention does not limit the selection of configuration parameters. Optionally, before step 202, the UE may receive the time threshold notified by the base station. For example, the base station can send the time threshold value by broadcasting, or the base station can send the time threshold value to the UE by carrying the time threshold value in RRC signaling, or as a specific parameter of the UE, when the UE changes from the connected state to the idle state, The base station sends the offset value to the UE. The UE can also preset a time threshold. It should be understood that the embodiments of the present invention are not limited thereto.

The following describes the embodiment of the present invention in detail with reference to the example in FIG. 3 .

Fig. 3 is a schematic diagram of a mobility management method according to an embodiment of the present invention. It should be understood that whether a cell is a serving cell or a neighbor cell, whether a cell uses a CRS or a CSI-RS signal, or whether the cells have same-frequency characteristics or different-frequency characteristics are merely exemplary and not limiting to the embodiments of the present invention. The following embodiments take two cells as an example. It should also be understood that the embodiment of the present invention does not limit the number of neighbor cells, and the number of cells may be more than two. It should also be pointed out that in the embodiment of the present invention, the time threshold set in the above manner may be used in the measurement process such as cell selection or cell reselection of the UE in the idle state, or the reporting of the measurement result triggered by the UE in the connected state.

It should be noted that these examples are only intended to help those skilled in the art better understand the embodiments of the present invention, rather than limiting the scope of the present invention.

For example, it is assumed that the first cell is a serving cell and uses a CSI-RS signal for measurement, and the second cell is a neighbor cell and uses a CRS signal for measurement. During the cell reselection process, the UE in the idle state obtains the measurement value Rs of the serving cell based on the CSI-RS signal used by the serving cell, and obtains the measurement value Rn of the neighbor cell based on the CRS signal measurement used by the neighbor cell. It should be understood that an offset value may also be introduced in the measurement process, and reference may be made to the above manner, so details are not repeated here. Compare Rs and Rn. When Rn is greater than Rs, as shown in Figure 3, the difference between Rn and Rs is d, and when Rn is greater than Rs and the duration of the difference between them is greater than d is greater than or equal to the time threshold, the UE can preferentially select a neighbor cell . It should be understood that the embodiment of the present invention does not limit the value range of the difference, and d may also be set to 0.

Specifically, for the setting of the time threshold value, because the configuration parameters of the CSI-RS signal and the configuration parameters of the CRS signal are inconsistent, such as the time periods in which the CSI-RS signal and the CRS signal appear are different, correspondingly, the time threshold value setting for t1. The time threshold value can also be set according to the priority order of the cells configured by the operator. For example, the priority of the first cell is higher than that of the second cell. When the measured value of the first cell is greater than the measured value of the second cell, The time threshold is set as t2, and when the measured value of the second cell is greater than the measured value of the first cell, the time threshold is set as t3. The time threshold may also be set according to the types of reference signals used by the first cell and the second cell and/or the frequency difference characteristics of the first cell and the second cell. As an implementation manner, the UE may preset the above time threshold. As another manner, the base station may send the set time threshold to the UE, which is not limited in this embodiment of the present invention.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and when the measurement value comparison result of the cell remains unchanged for a time greater than or equal to the time threshold value, the UE performs cell selection, cell reselection or triggers Reporting of measurement results. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

Fig. 4 is a flowchart of a mobility management method according to another embodiment of the present invention. The method in FIG. 4 is executed by the UE.

301. Determine a fifth measurement value of the first cell based on the first reference signal used by the first cell.

302. When the persistent time of the comparison result between the fifth measured value and the first threshold is greater than or equal to the time threshold, perform cell selection, cell reselection, or trigger reporting of the measurement result according to the fifth measured value.

The time threshold setting method includes at least one of the following methods: setting according to the priority of the cell, setting according to the type of the reference signal of the cell, setting according to the configuration parameters of the reference signal used by the cell, and setting according to the The different frequency characteristics are set. Wherein, the first reference signal includes a channel state information reference signal CSI-RS.

In the embodiment of the present invention, the user equipment measures the cell, and when the comparison result between the measured value of the cell and the threshold lasts for a period greater than or equal to the time threshold, the UE performs cell selection, cell reselection or triggers reporting of the measurement result. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

Optionally, as an embodiment, the first cell may be a serving cell, or may be a neighbor cell. It should be understood that the present invention is not limited thereto. It should also be noted that, the embodiment of the present invention does not limit the number of neighbor cells.

Optionally, as another embodiment, the configuration parameters may include one or any combination of the following: number of ports for reference signals, subframe configuration for reference signals, resource configuration for reference signals, and sequence configuration for reference signals. It should also be understood that the embodiment of the present invention does not limit the selection of configuration parameters.

Optionally, as another embodiment, the sixth measurement value of the second cell may be determined based on the second reference signal used by the second cell. When the duration of the comparison result between the fifth measurement value and the first threshold value and the comparison result between the sixth measurement value and the second threshold value is greater than or equal to the time threshold value, proceed according to the fifth measurement value and the sixth measurement value. Cell selection, cell reselection, or trigger reporting of measurement results.

Optionally, before step 302, the UE may receive the time threshold notified by the base station. For example, the base station can send the time threshold value by broadcasting, or the base station can send the time threshold value to the UE by carrying the time threshold value in RRC signaling, or as a specific parameter of the UE, when the UE changes from the connected state to the idle state, The base station sends the offset value to the UE. The UE can also preset a time threshold. It should be understood that the embodiments of the present invention are not limited thereto.

Embodiments of the present invention will be described in detail below in conjunction with specific examples.

For example, when the UE is in the connected state, the UE can selectively measure the measurement value of a certain cell. Specifically, when the UE measures that the measurement value of one of the neighboring cells is greater than or equal to the first threshold, and the continuous time during which the measurement value is greater than or equal to the threshold is greater than or equal to the above time threshold, the UE may report the measurement result to the base station so that the base station performs cell handover. When the UE measures that the measurement value of the current serving cell is less than or equal to the second threshold, and the continuous time during which the measurement value is less than or equal to the second threshold is greater than or equal to the above time threshold, the UE may report the measurement result to base station, so that the base station performs cell handover. For the setting method of the time threshold value, reference may be made to the above, which will not be repeated here. It should be understood that the embodiments of the present invention are not limited thereto, and may also be used for cell selection or cell reselection when the UE is in an idle state.

For another example, the UE may selectively measure the measured values of two cells, compare the measured values of the two cells with corresponding thresholds, and when the comparison result lasts longer than or equal to the above time threshold, Perform cell selection, cell reselection, or trigger reporting of measurement results. Specifically, when the UE is in the connected state, the UE may measure the measurement value Rs of the current serving cell and may also selectively measure the measurement value Rn of a certain neighbor cell. When Rn is greater than or equal to the first threshold V1 corresponding to the serving cell, and Rs is less than or equal to the second threshold V2 corresponding to the neighbor cell, and the time for which the comparison result remains unchanged is greater than or equal to the above time threshold, the UE may set The measurement result is reported to the base station, so that the base station performs cell handover.

It should be noted that the above examples are only illustrative, not limiting to the embodiments of the present invention.

In the embodiment of the present invention, the user equipment measures the cell, and when the comparison result between the measured value of the cell and the threshold lasts for a period greater than or equal to the time threshold, the UE performs cell selection, cell reselection or triggers reporting of the measurement result. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

Fig. 5 is a flowchart of a mobility management method according to an embodiment of the present invention. The method in FIG. 5 is executed by the network side device.

401. The second cell receives configuration information of a third reference signal used by the first cell and sent by the first cell.

402. The second cell configures a fourth reference signal used by the second cell according to configuration information of the third reference signal.

Wherein, both the third reference signal and the fourth reference signal include a channel state information reference signal CSI-RS.

In the embodiment of the present invention, the second cell configures the reference signal used by the second cell according to configuration information of the reference signal sent by the first cell. Therefore, in the cell scenario where the CSI-RS is introduced into mobility management, the UE performs measurement based on the same or similar reference signal during cell selection, cell reselection, or measurement that triggers the reporting of measurement results. In this way, the accuracy of measurement can be effectively guaranteed.

Optionally, as an embodiment, the first cell may be a serving cell, or may be a neighbor cell. Correspondingly, the second cell may be a neighbor cell or a serving cell. It should be understood that the present invention is not limited thereto. It should also be noted that, the embodiment of the present invention does not limit the number of neighbor cells.

Optionally, as another embodiment, the second cell may configure configuration parameters of the fourth reference signal used by the second cell according to configuration information of the third reference signal used by the first cell. The configuration parameters of the fourth reference signal are the same as the configuration information of the third reference signal, and the configuration parameters of the reference signal include one or any combination of the following: the number of ports of the reference signal, the subframe configuration of the reference signal, the resource configuration of the reference signal, the reference signal The sequence configuration of the signal.

For example, the reference signal CSI-RS of the first cell has a cycle interval of 10 ms and is sent to the second cell. Based on this, the second cell may configure the period interval for the second cell to use the CSI-RS to be about 10 ms or to be 10 ms. In this way, the UE performs measurement based on the same or similar reference signal in the measurement of cell selection, cell reselection or triggering the reporting of the measurement result, which can effectively ensure the accuracy of the measurement.

Fig. 6 is a block diagram of a user equipment according to one embodiment of the present invention. The user equipment 50 in FIG. 6 includes a determination unit 51 and a control unit 52 .

The determining unit 51 is configured to determine the first measurement value based on the first reference signal used by the first cell, and determine the second measurement value based on the second reference signal used by the second cell.

The control unit 52 is configured to perform cell selection, cell reselection, or trigger reporting of measurement results according to the first measurement value determined by the determination unit 51 , the second measurement value and the offset value determined by the determination unit 51 .

Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or the first reference signal and the second Both reference signals include CSI-RS.

It should be understood that the first reference signal and the second reference signal may include multiple ones, and the measurement values obtained based on different reference signals may be weighted in the same cell to determine the measurement value of the cell. The embodiments of the present invention are not limited.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and performs cell selection, or cell reselection, or triggers reporting of measurement results according to the measurement value and offset value of each cell. In this way, in the cell scenario where the CSI-RS is introduced in the mobility management, the UE can select a more suitable cell.

The user equipment 50 can implement the operations related to the user equipment in the embodiment of FIG. 1 , so to avoid repetition, no detailed description is given here.

Optionally, as an embodiment, the way of setting the offset value includes at least one of the following ways: setting according to the priority of the cell, setting according to the type of the first reference signal and the type of the second reference signal, according to The configuration parameters of the first reference signal and the configuration parameters of the second reference signal are set according to the different-frequency characteristics of the first cell and the second cell. In this way, flexibility in mobility management is provided.

Optionally, as another embodiment, the control unit 52 is specifically configured to: add the sum of the first measurement value and the offset value to the hysteresis value to obtain the measurement value of the first cell, and the second measurement value is the value of the second cell Measured values, perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measured value of the first cell and the measured value of the second cell, or perform cell selection or cell reselection according to the measured value of the first cell and the second cell The measurement value of the cell triggers the reporting of the measurement result; or

Specifically used for: adding the first measurement value to the hysteresis value to obtain the measurement value of the first cell, adding the second measurement value to the offset value to obtain the measurement value of the second cell, according to the measurement value of the first cell and the second Perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measured values of the cells, or trigger the reporting of the measurement results according to the measured values of the first cell and the measured values of the second cell; or

Specifically used for: adding the offset value to the first measurement value and the second measurement value according to the measurement value determined by CSI-RS, or adding the offset value to the first measurement value and the second measurement value according to the CRS determination Among the measured values of the first cell, the measured value of the first cell and the measured value of the second cell are obtained, and the cell is performed according to the priority order of the first cell and the second cell determined by the measured value of the first cell and the measured value of the second cell. Selection or cell reselection, or triggering the reporting of measurement results according to the measurement value of the first cell and the measurement value of the second cell.

Optionally, as another embodiment, the user equipment 50 further includes: a receiving unit 53, configured to receive the offset value notified by the base station; or the control unit 52 is further configured to: preset the offset value.

Fig. 7 is a block diagram of a user equipment according to one embodiment of the present invention. The user equipment 60 in FIG. 7 includes a determination unit 61 and a control unit 62 .

The determining unit 61 is configured to determine a third measurement value of the first cell based on the first reference signal used by the first cell, and determine a fourth measurement value of the second cell based on the second reference signal used by the second cell.

The control unit 62 is configured to, when the continuous time of the comparison result of the third measurement value and the fourth measurement value of the determination unit 61 is greater than or equal to the time threshold value, according to the third measurement value, the fourth measurement value and the deviation shift value to perform cell selection, cell reselection, or trigger reporting of measurement results.

The way of setting the time threshold value includes at least one of the following ways: setting according to the priority of the cell, setting according to the type of the first reference signal used by the first cell and the type of the second reference signal used by the second cell The setting is performed according to the configuration parameters of the first reference signal and the configuration parameters of the second reference signal, and is set according to the different-frequency characteristics of the first cell and the second cell.

Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or the first reference signal and the second Both reference signals include CSI-RS.

It should be understood that the third reference signal and the fourth reference signal may include multiple ones, and the same cell may determine the measurement value of the cell by weighting the measurement values obtained based on different reference signals. The embodiments of the present invention are not limited.

Optionally, as an embodiment, the first cell may be a serving cell, or may be a neighbor cell. Correspondingly, the second cell may be a neighbor cell or a serving cell. It should be understood that the present invention is not limited thereto. It should also be noted that, the embodiment of the present invention does not limit the number of neighbor cells.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and when the measurement value comparison result of the cell remains unchanged for a time greater than or equal to the time threshold value, the UE performs cell selection, cell reselection or triggers Reporting of measurement results. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

The user equipment 60 can implement the operations related to the user equipment in the embodiments of FIG. 2 and FIG. 3 , so to avoid repetition, no detailed description is given here.

Optionally, as another embodiment, the user equipment 60 may further include: a receiving unit 63, configured to receive the time threshold value notified by the base station; or the control unit 62 is further configured to: preset the time threshold value.

Fig. 8 is a block diagram of a user equipment according to another embodiment of the present invention. The user equipment 70 in FIG. 8 includes a determination unit 71 and a control unit 72 .

The determining unit 71 is configured to determine a fifth measurement value of the first cell based on the first reference signal used by the first cell.

The control unit 72 is configured to perform cell selection and cell reselection according to the fifth measurement value when the duration of the comparison result of the fifth measurement value determined by the determination unit 71 and the first threshold value is greater than or equal to the time threshold. Or trigger reporting of measurement results.

The time threshold setting method includes at least one of the following methods: setting according to the priority of the cell, setting according to the type of the reference signal of the cell, setting according to the configuration parameters of the reference signal used by the cell, and setting according to the The different frequency characteristics are set. Wherein, the first reference signal includes a channel state information reference signal CSI-RS.

The user equipment 80 can implement the operations related to the user equipment in the embodiment of FIG. 4 , so to avoid repetition, no detailed description is given here.

Optionally, as an embodiment, the determining unit 71 is further configured to: determine the sixth measurement value of the second cell based on the second reference signal used by the second cell. The control unit 72 is further configured to: when the duration of the comparison result between the fifth measurement value and the first threshold and the comparison result between the sixth measurement value and the second threshold is greater than or equal to the time threshold, according to the fifth measurement value and the sixth measurement value to perform cell selection, cell reselection, or trigger reporting of measurement results.

Optionally, as another embodiment, the user equipment 70 may further include: a receiving unit 73, configured to receive the time threshold value notified by the base station; or the control unit 72 is further configured to: preset the time threshold value.

In the embodiment of the present invention, the user equipment measures the cell, and when the comparison result between the measured value of the cell and the threshold lasts for a period greater than or equal to the time threshold, the UE performs cell selection, cell reselection or triggers reporting of the measurement result. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

Fig. 9 is a block diagram of a network side device according to an embodiment of the present invention. The network side device 80 in FIG. 9 includes a receiving unit 81 and a configuration unit 82 .

The receiving unit 81 is configured for the second cell to receive the configuration information of the third reference signal sent by the first cell and used by the first cell;

The configuration unit 82 is configured for the second cell to configure the fourth reference signal used by the second cell according to the configuration information of the third reference signal received by the receiving unit 81 .

Wherein, both the third reference signal and the fourth reference signal include a channel state information reference signal CSI-RS.

The network-side device 80 can implement the operations related to the network-side device in the embodiment of FIG. 5 , so to avoid repetition, no detailed description is given here.

Optionally, as an embodiment, the configuration unit 82 is specifically configured to: configure the configuration parameters of the fourth reference signal; the configuration parameters of the fourth reference signal are the same as the configuration parameters of the third reference signal, and the configuration parameters include at least one of the following One: the number of ports of the reference signal, the subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal.

In the embodiment of the present invention, the second cell configures the reference signal used by the second cell according to configuration information of the reference signal sent by the first cell. Therefore, in the cell scenario where the CSI-RS is introduced into mobility management, the UE performs measurement based on the same or similar reference signal during cell selection, cell reselection, or measurement that triggers the reporting of measurement results. In this way, the accuracy of measurement can be effectively guaranteed.

Embodiments of the present invention further provide device embodiments for implementing the steps and methods in the above method embodiments. Embodiments of the present invention can be applied to user equipment and network side equipment in various communication systems. FIG. 10 shows an embodiment of a device. In this embodiment, a device 800 includes a transmitter 802 , a receiver 803 , a power controller 806 , a decoding processor 805 , a processor 806 , a memory 807 and an antenna 801 . The processor 806 controls the operation of the device 800, and the processor 806 may also be called a central processing unit CPU or a processor. The memory 807 may include read-only memory and random-access memory, and provides instructions and data to the processor 806 . A portion of memory 807 may also include non-volatile random access memory (NVRAM). In a specific application, the device 800 may be embedded or itself may be a wireless communication device such as a mobile phone, and may also include a carrier for accommodating a transmitter 802 and a receiver 803, so as to allow data transmission and communication between the device 800 and a remote location. take over. A transmitter 802 and a receiver 803 may be coupled to an antenna 801 . Various components of the device 800 are coupled together through a bus system 810, wherein the bus system 810 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity of illustration, the various buses are labeled as bus system 810 in the figure. The device 800 may further include a processor 806 for processing signals, and further include a power controller 804 and a decoding processor 805 .

The method disclosed in the above-mentioned embodiments of the present invention can be applied to the above-mentioned device 800 , or mainly implemented by the processor 806 and the receiver 803 therein. The processor 806 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 806 or instructions in the form of software. For implementing the method disclosed in the embodiment of the present invention, the above-mentioned decoding processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general purpose processor can be a microprocessor or the processor can be any conventional processor, decoder, etc. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 807, and the decoding unit reads the information in the memory 807, and completes the steps of the above method in combination with its hardware.

Further, Fig. 11 is a structural block diagram of a user equipment according to an embodiment of the present invention. The user equipment 1100 in FIG. 11 includes a processor 110 and a memory 120 .

The processor 110 is configured to determine a first measurement value based on a first reference signal used by the first cell stored in the memory 120, and determine a second measurement value based on a second reference signal stored in the memory 120 and used by the second cell ; Used to perform cell selection, cell reselection, or trigger reporting of measurement results according to the determined first measurement value, second measurement value, and offset value.

Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or the first reference signal and the second Both reference signals include CSI-RS.

It should be understood that the first reference signal and the second reference signal may include multiple ones, and the measurement values obtained based on different reference signals may be weighted in the same cell to determine the measurement value of the cell. The embodiments of the present invention are not limited.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and performs cell selection, or cell reselection, or triggers reporting of measurement results according to the measurement value and offset value of each cell. In this way, in the cell scenario where the CSI-RS is introduced in the mobility management, the UE can select a more suitable cell.

The user equipment 1100 can implement the operations related to the user equipment in the embodiment of FIG. 1 , so to avoid repetition, no detailed description is given here.

Optionally, as an embodiment, the way of setting the offset value includes at least one of the following ways: setting according to the priority of the cell, setting according to the type of the first reference signal and the type of the second reference signal, according to The configuration parameters of the first reference signal and the configuration parameters of the second reference signal are set according to the different-frequency characteristics of the first cell and the second cell. In this way, flexibility in mobility management is provided.

Optionally, as another embodiment, the processor 110 is specifically configured to: add the sum of the first measurement value and the offset value to the hysteresis value to obtain the measurement value of the first cell, and the second measurement value is the value of the second cell Measured values, perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measured value of the first cell and the measured value of the second cell, or perform cell selection or cell reselection according to the measured value of the first cell and the second cell The measurement value of the cell triggers the reporting of the measurement result; or

Specifically used for: adding the first measurement value to the hysteresis value to obtain the measurement value of the first cell, adding the second measurement value to the offset value to obtain the measurement value of the second cell, according to the measurement value of the first cell and the second Perform cell selection or cell reselection according to the priority order of the first cell and the second cell determined by the measured values of the cells, or trigger the reporting of the measurement results according to the measured values of the first cell and the measured values of the second cell; or

Specifically used for: adding the offset value to the first measurement value and the second measurement value according to the measurement value determined by CSI-RS, or adding the offset value to the first measurement value and the second measurement value according to the CRS determination Among the measured values of the first cell, the measured value of the first cell and the measured value of the second cell are obtained, and the cell is performed according to the priority order of the first cell and the second cell determined by the measured value of the first cell and the measured value of the second cell. Selection or cell reselection, or triggering the reporting of measurement results according to the measurement value of the first cell and the measurement value of the second cell.

Optionally, as another embodiment, the user equipment 1100 further includes: a receiver 130, configured to receive the offset value notified by the base station; or the processor 110 is further configured to: preset the offset value.

Fig. 12 is a structural block diagram of user equipment according to another embodiment of the present invention. The user equipment 20 in FIG. 12 includes a processor 21 and a memory 22 .

The processor 21 is configured to determine the third measurement value of the first cell based on the first reference signal used by the first cell stored in the memory 22, and determine the third measurement value of the first cell based on the second reference signal stored in the memory 22 and used by the second cell. The fourth measurement value of the second cell is used to determine the third measurement value and the fourth measurement value according to the third measurement value and the fourth measurement value when the determined continuous time of the comparison result between the third measurement value and the fourth measurement value is greater than or equal to the time threshold value. value and offset value to perform cell selection, cell reselection, or trigger reporting of measurement results.

The way of setting the time threshold value includes at least one of the following ways: setting according to the priority of the cell, setting according to the type of the first reference signal used by the first cell and the type of the second reference signal used by the second cell The setting is performed according to the configuration parameters of the first reference signal and the configuration parameters of the second reference signal, and is set according to the different-frequency characteristics of the first cell and the second cell.

Wherein, the first reference signal includes a common reference signal CRS, and the second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, and the second reference signal includes a CRS; or the first reference signal and the second Both reference signals include CSI-RS.

It should be understood that the third reference signal and the fourth reference signal may include multiple ones, and the same cell may determine the measurement value of the cell by weighting the measurement values obtained based on different reference signals. The embodiments of the present invention are not limited.

Optionally, as an embodiment, the first cell may be a serving cell, or may be a neighbor cell. Correspondingly, the second cell may be a neighbor cell or a serving cell. It should be understood that the present invention is not limited thereto. It should also be noted that, the embodiment of the present invention does not limit the number of neighbor cells.

In the embodiment of the present invention, the user equipment measures each cell, obtains the measurement value of each cell, and when the measurement value comparison result of the cell remains unchanged for a time greater than or equal to the time threshold value, the UE performs cell selection, cell reselection or triggers Reporting of measurement results. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

The user equipment 20 can implement the operations related to the user equipment in the embodiments of FIG. 2 and FIG. 3 , so to avoid repetition, no detailed description is given here.

Optionally, as another embodiment, the user equipment 20 may further include: a receiver 23, configured to receive the time threshold value notified by the base station; or the processor 21 is further configured to: preset the time threshold value.

Fig. 13 is a structural block diagram of user equipment according to another embodiment of the present invention. The user equipment 30 in FIG. 13 includes a processor 31 and a memory 32 .

The processor 31 is configured to determine a fifth measurement value of the first cell based on a first reference signal stored in the memory 32 used by the first cell. The processor 31 is configured to perform cell selection, cell reselection or trigger reporting of measurement results according to the fifth measurement value when the duration of the comparison result between the fifth measurement value and the first threshold is greater than or equal to the time threshold ;

The time threshold setting method includes at least one of the following methods: setting according to the priority of the cell, setting according to the type of the reference signal of the cell, setting according to the configuration parameters of the reference signal used by the cell, and setting according to the The different frequency characteristics are set. Wherein, the first reference signal includes a channel state information reference signal CSI-RS.

Optionally, as an embodiment, the processor 31 is further configured to: determine a sixth measurement value of the second cell based on a second reference signal stored in the memory 32 and used by the second cell. The processor 31 is further configured to: when the duration of the comparison result between the fifth measured value and the first threshold and the comparison result between the sixth measured value and the second threshold is greater than or equal to the time threshold, according to the first The fifth measurement value and the sixth measurement value perform cell selection, cell reselection, or trigger reporting of measurement results.

The user equipment 30 can implement the operations related to the user equipment in the embodiment of FIG. 4 , so to avoid repetition, no detailed description is given here.

Optionally, as another embodiment, the user equipment 30 may further include: a receiver 33, configured to receive the time threshold value notified by the base station; or the processor 31 is further configured to: preset the time threshold value.

In the embodiment of the present invention, the user equipment measures the cell, and when the comparison result between the measured value of the cell and the threshold lasts for a period greater than or equal to the time threshold, the UE performs cell selection, cell reselection or triggers reporting of the measurement result. Therefore, in the cell scenario where CSI-RS is introduced into mobility management, the time threshold is set based on the cell priority order, reference model type, configuration parameters of reference signals, and/or different frequency characteristics of the cell. In this way, it can effectively ensure that the UE selects a cell with good stability, and provides flexibility in mobility management.

Fig. 14 is a block diagram of a network side device according to an embodiment of the present invention. The network side device 40 in FIG. 14 includes a receiver 41 and a processor 42 .

The receiver 41 is configured for the second cell to receive the configuration information of the third reference signal used by the first cell and sent by the first cell;

The processor 42 is configured for the second cell to configure the fourth reference signal used by the second cell according to the configuration information of the third reference signal received by the receiver 41 .

Wherein, both the third reference signal and the fourth reference signal include a channel state information reference signal CSI-RS.

The network-side device 40 can implement the operations related to the network-side device in the embodiment of FIG. 5 , so to avoid repetition, no detailed description is given here.

Optionally, as an embodiment, the processor 42 is specifically configured to: configure configuration parameters of the fourth reference signal; the configuration parameters of the fourth reference signal are the same as the configuration parameters of the third reference signal, and the configuration parameters include at least one of the following One: the number of ports of the reference signal, the subframe configuration of the reference signal, the resource configuration of the reference signal, and the sequence configuration of the reference signal.

In the embodiment of the present invention, the second cell configures the reference signal used by the second cell according to configuration information of the reference signal sent by the first cell. Therefore, in the cell scenario where the CSI-RS is introduced into mobility management, the UE performs measurement based on the same or similar reference signal during cell selection, cell reselection, or measurement that triggers the reporting of measurement results. In this way, the accuracy of measurement can be effectively guaranteed.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes. .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (2)

1. a kind of method of mobile management, it is characterised in that including：

Second community receives the configuration information for the 3rd reference signal used by the first community that first community is sent；

The second community configures the 4th ginseng used by the second community according to the configuration information of the 3rd reference signal Examine signal；

Wherein, the 3rd reference signal and the 4th reference signal include channel state information reference signals CSI-RS；

The second community configures the 4th ginseng used by the second community according to the configuration information of the 3rd reference signal Signal is examined, including：

Configure the configuration parameter of the 4th reference signal；

The configuration parameter of 4th reference signal is identical with the configuration parameter of the 3rd reference signal, and the configuration parameter is extremely Include less one of following：The port number of reference signal, the sub-frame configuration of reference signal, the resource distribution of reference signal, with reference to letter Number sequence configuration.

2. a kind of network side equipment, it is characterised in that including：

Receiving unit, the 3rd reference signal used by the first community that first community is sent is received for second community Configuration information；

Dispensing unit, the configuration information of the 3rd reference signal received for the second community according to the receiving unit Configure the 4th reference signal used by the second community；

Wherein, the 3rd reference signal and the 4th reference signal include channel state information reference signals CSI-RS；

The dispensing unit specifically for：

Configure the configuration parameter of the 4th reference signal；

The configuration parameter of 4th reference signal is identical with the configuration parameter of the 3rd reference signal, and the configuration parameter is extremely Include less one of following：The port number of reference signal, the sub-frame configuration of reference signal, the resource distribution of reference signal, with reference to letter Number sequence configuration.