WO2014012385A1

WO2014012385A1 - Method and device for mobility management

Info

Publication number: WO2014012385A1
Application number: PCT/CN2013/074414
Authority: WO
Inventors: 时洁
Original assignee: 华为技术有限公司
Priority date: 2012-07-20
Filing date: 2013-04-19
Publication date: 2014-01-23
Also published as: CN107395534A; CN107395534B; CN103581997B; CN103581997A

Abstract

Embodiments of the present invention provide a method and device for mobility management. The method comprises: 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; and performing cell selection and cell reselection or triggering report of a measurement result according to the first measurement value, the second measurement value, and an offset value, the first reference signal comprising a common reference signal (CRS), and the second reference signal comprising a channel state information-reference signal (CSI-RS); or the first reference signal comprising a CSI-RS, and the second reference signal comprising a CRS; or both the first reference signal and the second reference signal comprising a CSI-RS. In this way, in a cell scenario where a CSI-RS is introduced in mobility management, a UE can select a more suitable cell.

Description

Method and device for mobility management

Embodiments of the present invention relate to the field of communications technologies and, more particularly, to methods and apparatus for mobility management. Background technique

In the LTE (Long Term Evolution) system, the CSI-RS (Channel State Information-Reference Signal) is introduced with the introduction of Comp (Coordinated Multiple Points) technology and new carriers. The signal will gradually replace the CRS (Common Reference Signal) signal, used for channel quality estimation and/or encoding/decoding of the transmission point downlink signal in the Comp scenario, or for the control domain of the downlink signal using the new carrier type cell. And channel estimation and encoding/decoding of the data domain. The CSI-RS signal is introduced into the mobility management, the cell selection/reselection of the idle state UE (User Equipment), or the cell handover of the connection state UE, and the measurement mechanism based on the CRS signal for measurement and decision are also used. For example, for the idle state UE, measure the RSRP (Reference Signal Receiving Power)/RSRQ (Reference Signal Receiving Quality) signal quality of the CSI-RS signal, use the S criterion to perform cell selection, or utilize The R criterion performs 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 trigger condition, and a measurement result. 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 performs a cell handover command to the UE.

When the UE works in a scenario where the old version of the CRS signal-based cell and the CSI-RS signal-based cell are mixed, the measurement information is inaccurate because of the inconsistency of the configuration information of the CRS signal and the CSI-RS signal. Summary of the invention

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

In a first aspect, a method for mobility management is provided, including: determining a first measurement value based on a first reference signal used by a first cell, and determining a second basis based on a second reference signal used by a second cell Measured value; performing cell selection, cell reselection, or triggering reporting of the measurement result 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, The second reference signal includes a channel state information reference signal CSI-RS; or the first reference signal includes a CSI-RS, the second reference signal includes a CRS; or the first reference signal and the second reference The signals all include CSI-RS.

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

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

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

The configuration parameter includes at least one of the following: a number of ports of the reference signal, a subframe configuration of the reference signal, a resource configuration of the reference signal, and a 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 of the first aspect, or the second possible implementation manner, in a third possible implementation manner, the determining, according to the first measurement value, the second measurement The value and the offset value are used for cell selection, cell reselection, or triggering the reporting of the measurement result. The specific implementation may be:

Adding a sum of the first measured value and the offset value to a hysteresis value to obtain a measured value of the first cell, where the second measured value is a measured value of the second cell, according to the first cell Performing cell selection or cell reselection in the order of priority of the first cell and the second cell determined by the measured value and the measured value of the second cell, or according to the measured value of the first cell and the first The measured value of the two cells is used to trigger the measurement result.

Adding the first measurement value to the hysteresis value to obtain a measurement value of the first cell, and adding the second measurement value to the offset value to obtain a measurement value of the second cell, according to the measurement by the first cell And the priority of the first cell and the second cell determined by the measured value of the second cell to perform cell selection or cell reselection, or according to the measured value of the first cell and the second The measured value of the cell is used to trigger the measurement result.

Adding the offset value to the measured value determined according to the CSI-RS in the first measured value and the second measured value, or adding the offset value to the first measured value and the second measured value According to And obtaining, by the CRS, the measured value of the first cell and the measured value of the second cell, according to the first cell and the determined by the measured value of the first cell and the measured value of the second cell The priority order of the second cell is used for cell selection or cell reselection, or the measurement result of the first cell is triggered according to the measured value of the first cell and the measured value of the second cell.

With reference to the first aspect or the first possible implementation manner of the first aspect or the second possible implementation manner or the third possible implementation manner, in a fourth possible implementation manner, according to the first measurement Before the value, the second measurement value, and the offset value are performed on the cell selection, the cell reselection, or the triggering of the measurement result, 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 or the second possible implementation or the third possible implementation or the fourth possible implementation of the first aspect, in a fifth possible implementation manner The first cell is a serving cell, and the second cell is a neighbor cell.

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

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the specific implementation may be: Receiving the time threshold notified by the base station; or setting the time threshold in advance. With reference to the second aspect or the first possible implementation manner or the second possible implementation manner of the second aspect, in a 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 method for mobility management is provided, including: determining, according to a first reference signal used by a first cell, a fifth measurement value of a first cell; and comparing a fifth measurement value with a first threshold When the persistent time is greater than or equal to the time threshold, the cell selection, the cell reselection, or the triggering of the measurement result is performed according to the fifth measurement value; the time threshold value setting manner includes the following manners. At least one of the following: 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 parameter of the reference signal used by the cell, and setting according to the inter-frequency characteristic between the cells; The first reference signal includes a channel state information reference signal CSI-RS.

Determining a sixth measurement value of the second cell based on the second reference signal used by the second cell; when the comparison result of the fifth measurement value with the first threshold value and the comparison result of the sixth measurement value and the second threshold value are continued When the invariant time is greater than or equal to the time threshold, the cell selection, the cell reselection, or the triggering of the measurement result is performed according to the fifth measurement value and the sixth measurement value.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the specific implementation may be:

Receiving the time threshold notified by the base station; or setting the time threshold in advance. The fourth aspect provides a mobility management method, including: receiving, by a second cell, configuration information of a third reference signal used by the first cell and sent by the first cell; The configuration information of the three reference signals configures a fourth reference signal used by the second cell; wherein the third reference signal and the fourth reference signal each include a channel state information reference signal CSI-RS.

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

And configuring a configuration parameter of the fourth reference signal; the configuration parameter of the fourth reference signal is the same as the configuration parameter of the third reference signal, and the configuration parameter includes at least one of the following: a port number of the reference signal, a reference signal Subframe configuration, resource configuration of reference signals, sequence configuration of reference signals. The sequence configuration of the reference signal includes a scrambling initialization parameter. The fifth aspect provides a user equipment, including: a determining unit, configured to determine a first measurement value based on a first reference signal used by the first cell, and determine a second measurement value based on a second reference signal used by the second cell; a control unit, configured to perform cell selection, cell reselection, or triggering reporting of the measurement result according to the first measurement value determined by the determining unit, the second measurement value and the offset value determined by the determining unit; The first reference signal includes a common reference signal CRS, 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 comprise a CSI-RS.

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

Specifically, the method includes: adding a first hysteresis value to the first measurement value to obtain a measurement value of the first cell, and adding the second measurement value to the offset value to obtain a measurement value of the second cell, according to the Performing cell selection or cell reselection in the order of priority 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 according to the measured value of the first cell and The measured value of the second cell is used to trigger a measurement result; or

Specifically, the offset value is added to the measured value determined according to the CSI-RS in the first measured value and the second measured value, or the offset value is added to the first measured value and Obtaining, in the measured value determined according to the CRS, the measured value of the first cell and the measured value of the second cell, according to the measured value of the first cell and the measured value of the second cell. The priority of the first cell and the second cell are sequentially performed to perform cell selection or cell reselection, or the measurement result is triggered according to the measured value of the first cell and the measured value of the second cell. Newspaper.

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

The sixth aspect provides a user equipment, including: a determining unit, configured to determine, according to a first reference signal used by the first cell, a third measurement value of the first cell, and determine, according to a second reference signal used by the second cell, a fourth measurement value of the second cell; the control unit, configured to: when the comparison result of the comparison between the third measurement value and the fourth measurement value determined by the determining unit is greater than or equal to a time threshold And performing, according to the third measurement value and the fourth measurement value, performing cell selection, cell reselection, or triggering reporting of the measurement result; the time threshold setting manner includes at least one of the following manners: according to the cell The setting is performed 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 parameter of the first reference signal and the The configuration parameters of the second reference signal are set, and are set according to the inter-frequency characteristics of the first cell and the second cell. The first reference signal includes a common reference signal CRS, 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 comprise a CSI-RS.

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

a receiving unit, 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.

The seventh aspect provides a user equipment, including: a determining unit, configured to determine, according to a first reference signal used by the first cell, a fifth measurement value of the first cell; and a control unit, configured to: when the fifth measurement value Performing cell selection, cell reselection, or triggering reporting of the measurement result according to the fifth measurement value when the duration of the comparison with the first threshold is greater than or equal to the time threshold; the time threshold setting The mode includes at least one of the following manners: 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 parameter of the reference signal used by the cell, and setting according to the inter-frequency characteristic between the cells The first reference signal includes a channel state information reference signal CSI-RS. In a first possible implementation, the determining unit is further configured to:

Determining, according to the second reference signal used by the second cell, a sixth measurement value of the second cell; the control unit is further configured to: when the fifth measurement value is compared with the first threshold value and the sixth measurement value When the duration of the comparison result of the second threshold is greater than or equal to the time threshold, cell selection, cell reselection, or triggering of the measurement result is performed 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 the second possible implementation manner, the user equipment further includes:

According to an eighth aspect, a network side device is provided, including: a receiving unit, configured to receive, by a second cell, configuration information of a third reference signal used by the first cell and sent by the first cell; 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, where the third reference signal and the fourth reference signal are both A channel state information reference signal CSI-RS is included.

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

And configuring a configuration parameter of the fourth reference signal; the configuration parameter of the fourth reference signal is the same as the configuration parameter of the third reference signal, and the configuration parameter includes at least one of the following: a port number of the reference signal, a reference signal Subframe configuration, resource configuration of reference signals, sequence configuration of reference signals.

Through the foregoing solution, the user equipment in the embodiment of the present invention performs measurement on each cell, obtains measurement values of each cell, and performs cell selection, cell reselection, or triggering reporting of measurement results according to measurement values and offset values of each cell. In this way, in a cell scenario in which CSI-RS is introduced in mobility management, the UE can select a more suitable cell. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1 is a flow chart of a method of mobility management in accordance with one embodiment of the present invention. 2 is a flow chart of a method of mobility management in accordance with another embodiment of the present invention.

3 is a flow chart of a method of mobility management in accordance with another embodiment of the present invention.

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

FIG. 5 is a flow chart of a method of mobility management 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 a user equipment according to another embodiment of the present invention.

FIG. 8 is a structural block diagram of a 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 in accordance with 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 a user equipment according to another embodiment of the present invention.

FIG. 13 is a structural block diagram of a 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 technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

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

A user equipment (UE, User Equipment), which may also be called a mobile terminal (Mobile Terminal), a mobile user equipment, etc., may communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network). The user equipment may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle, The wireless access network exchanges languages and/or data.

Network side device, which can be a base station in GSM or CDMA (BTS, Base Transceiver) The station may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolved Node B) in LTE, which is not limited by the present invention.

1 is a flow chart of a method of mobility management in accordance with one embodiment of the present invention. The method of Figure 1 is performed by a UE.

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

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

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, the second reference signal includes a CRS; or the first reference signal and the first Both reference signals include CSI-RS.

It should be understood that the first reference signal and the second reference signal may include multiple, and the same cell may weight the measured values obtained based on different reference signals to determine the measured value of the cell. The embodiment of the invention is not limited.

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

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

Optionally, as another embodiment, in step 102, the setting manner of the offset value may include at least one of the following manners: setting according to a priority of the cell, according to a configuration parameter of the first reference signal, and a second The configuration parameters of the reference signal are set, and are set according to the inter-frequency characteristics of the first cell and the second cell. It should be noted that the offset value can take a positive value or a negative value. It should be understood that the reason why the embodiment of the present invention introduces the offset value and the value range of the offset value is not limited. Further, the foregoing 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 first measurement value and the offset may be The sum of the values plus the hysteresis value obtains the measured value of the first cell, and the second measured value is the measured value of the second cell, and the first cell and the first determined according to the measured value of the first cell and the measured value of the second cell The priority order of the two cells is used for cell selection or cell reselection, or the measurement result of the triggering measurement result is performed according to the measured value of the first cell and the measured value of the second cell.

Optionally, as another embodiment, in step 102, the first measurement value may be added with the hysteresis value to obtain the measurement value of the first cell, and the second measurement value is added to the offset value to obtain the measurement of the second cell. a value, performing cell selection or cell reselection according to a 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 first The measured value of the two cells is used to trigger the reporting of the measurement result.

Optionally, as another embodiment, in step 102, an offset value may be added to the measured value determined according to the CSI-RS in the first measured value and the second measured value, and the offset value may also be added to the Obtaining, in the first measurement value and the second measurement value, the measurement value determined by the CRS, the measurement value of the first cell and the measurement value of the second cell, according to the measurement value of the first cell and the measurement value of the second cell. The priority of the first cell and the second cell are sequentially performed for cell selection or cell reselection, or the measurement result of the triggering measurement result is performed according to the measured value of the first cell and the measured value of the second cell.

In an implementation manner, if the first reference signal includes a CSI-RS, the sum of the first measured value and the offset value may be added to the hysteresis value to obtain the measured value of the first cell, if the first reference signal does not include CSI-RS, then the first measured value plus the hysteresis value is the measured value of the first cell. If the second reference signal includes the CSI-RS, adding the second measurement value to the offset value to obtain the measurement value of the second cell, and if the second reference signal does not include the CSI-RS, the second measurement value is the first cell Measurements. Performing 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 according to the measured value of the first cell and the measurement of the second cell The value is used to trigger the measurement result.

In another implementation manner, if the first reference signal includes the CRS, the sum of the first measured value and the offset value may be added to the hysteresis value to obtain the measured value of the first cell, if the first reference signal does not include the CRS. And the first measured value plus the hysteresis value is the measured value of the first cell; if the second reference signal includes the CRS, adding the second measured value to the offset value to obtain the measured value of the second cell, if the second reference signal If the CRS is not included, the second measurement value is the measurement value of the first cell; the cell selection or the cell 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 triggering the measurement result based on the measured value of the first cell and the measured value of the second cell. It should be understood that, in the measurement value of the cell to which the offset value is added, or the offset value is added to the measurement value obtained based on which reference signal, the embodiment of the present invention falls within the scope of the embodiment of the present invention.

Non-limiting examples of the method of mobility management of embodiments of the present invention are described in more detail below in conjunction with specific embodiments. It should be noted that these examples are only intended to assist those skilled in the art to better understand the embodiments of the invention and not to limit the scope of the invention.

It should be understood that whether the cell is a serving cell or a neighbor cell, whether the cell uses CRS or CSI-RS signals, or whether the cells have the same frequency characteristic or the inter-frequency characteristic is merely exemplary, and is not limited to the embodiments of the present invention. The following embodiment takes two cells as an example. It should be understood that the number of neighbor cells is not limited in the embodiment of the present invention, and the number of cells may be two or more.

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

In an implementation manner, the configuration parameters of the CSI-RS signal and the configuration parameters of the CRS signal may be inconsistent, for example, the CSI-RS signal and the CRS signal appear in different time periods, and accordingly, the offset value may be added to R1. Further, the hysteresis value may be further 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 neighbor cell has a higher priority order than the serving cell. Further, when the duration of Rn greater than Rs is greater than or equal to the time threshold, the UE performs cell reselection to preferentially select the neighbor cell; if Rs is greater than Rn, the priority order of the serving cell is higher than the neighbor cell, and the UE When cell reselection is performed, the serving cell is preferentially selected. In this way, the accuracy of the measurement is improved, so that the UE selects a more suitable cell.

In another implementation manner, when the serving cell and the neighboring cell are inter-frequency characteristics, that is, the serving cell and the neighboring cell work on different carrier frequencies, correspondingly, the offset value may be added to R1, and further, It is possible to add a hysteresis value. The offset value may also be introduced by considering the inconsistency of the configuration parameters of the reference signal used by the serving cell and the neighboring cell and/or the priority order of the cell that the operator has configured. This provides flexibility in mobility management. The manner in which the UE performs cell reselection is as described above, and will not be described again.

For another example, the first cell is assumed to be a serving cell, and the CSI-RS signal is used for measurement, The two cells are neighbor cells and are measured using CSI-RS signals. During the cell reselection process, the first measurement value R3 is obtained based on the CSI-RS signal measurement used by the serving cell, and the second measurement value R4 is obtained based on the CRS signal measurement used by the neighbor cell. The serving cell and the neighbor cell can work on the same carrier frequency or can operate on different carrier frequencies. Optionally, the configuration parameters of the CSI-RS signal used by the serving cell and the neighboring cell are inconsistent, for example, the CSI-RS signal period interval of the serving cell is 10 ms, and the CSI-RS signal period interval of the neighboring cell is 50 ms, and accordingly, 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 neighboring cell. It is also possible to simultaneously consider whether the serving cell and the neighbor cell are operating on the same carrier frequency and/or the priority order of the cell that the operator has configured, and the like. Comparing the Rs and Rn values to determine the priority order of the serving cell and the neighboring cell to perform cell selection or cell reselection. Further, when the duration of the comparison result is greater than or equal to the time threshold, the UE performs cell selection again. Or cell reselection. Therefore, it is also possible to effectively ensure that the UE selects a cell with good stability. Limited.

It should be noted that the foregoing examples are merely exemplary, and the embodiment of the present invention is not limited thereto, and an offset value may be introduced when the cell is selected or the reporting of the measurement result is triggered.

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

In the embodiment of the present invention, the user equipment performs measurement on each cell, obtains measurement values of each cell, and performs cell selection, cell reselection, or triggering reporting of measurement results according to measurement values and offset values of each cell. Thus, in a cell scenario in which CSI-RS is introduced in mobility management, the UE can select a more suitable cell.

2 is a flow chart of a method of mobility management in accordance with one embodiment of the present invention. The method of Figure 2 is performed 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. Perform cell selection and cell reselection according to the third measured value and the fourth measured value when a duration of the comparison between the third measured value and the fourth measured value is greater than or equal to a time threshold. Or trigger the measurement of the upper 3⁄4.

The time threshold setting manner includes at least one of the following manners: setting according to a priority of the cell, setting according to a type of the first reference signal used by the first cell and a type of the second reference signal used by the second cell, And setting according to the configuration parameter of the first reference signal and the configuration parameter of the second reference signal, and setting according to the inter-frequency characteristic of the first cell and the second cell.

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, the second reference signal includes a CRS; or the first reference signal And the second reference signal includes a CSI-RS.

It should be understood that the third reference signal and the fourth reference signal may include multiple, and the same cell may weight the measured values obtained based on different reference signals to determine the measured value of the cell. Embodiments of the invention are not limited.

In the embodiment of the present invention, the user equipment performs measurement on each cell, and obtains measurement values of each cell, and when the time when the comparison result of the measurement value of the cell is constant is greater than or equal to the time threshold, the UE performs cell selection, cell reselection, or triggering. The report results are reported. Therefore, in the cell scenario in which CSI-RS is introduced in mobility management, the time threshold is set based on the cell priority order, the reference model type, the configuration parameters of the reference signal, and/or the inter-frequency characteristics of the cell. In this way, it is possible to effectively ensure that the UE selects a cell with good stability and provides flexibility in mobility management.

Optionally, as another embodiment, the configuration parameter 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. 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 a time threshold notified by the base station. For example, the base station may send the time threshold in a broadcast manner, or the base station may send the time threshold value to the UE in the RRC signaling, or may be a specific parameter of the UE, when the UE transitions from the connected state to the idle state. The base station transmits the offset value to the UE. The UE can also preset the time threshold. It should be understood that the embodiments of the present invention are not limited thereto.

Embodiments of the present invention are described in detail below with reference to the example of FIG.

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 the cell is a serving cell or a neighbor cell, whether the cell uses a CRS or a CSI-RS signal, or a cell Whether the inter-frequency characteristic or the inter-frequency characteristic is merely exemplary, and not a limitation of the embodiment of the present invention. In the following embodiment, two cells are taken as an example. It should be understood that the number of neighbor cells is not limited in the embodiment of the present invention, and the number of cells may be two or more. It should be noted that, in the embodiment of the present invention, the time threshold set by the foregoing manner may be referenced in the measurement process of the UE cell selection or the cell reselection in the idle state, or the reporting of the measurement result triggered by the UE in the connected state. The examples are not intended to limit the scope of the invention.

For example, it is assumed that the first cell is a serving cell, and the CSI-RS signal is used for measurement, and the second cell is a neighbor cell, and the CRS signal is used for measurement. The UE in the idle state obtains the measured value Rs of the serving cell based on the CSI-RS signal used by the serving cell in the cell reselection process, and obtains the measured value Rn of the neighbor cell based on the CRS signal used by the neighboring cell. It should be understood that the offset value can also be introduced in the measurement process, and the above manner can be referred to, and therefore will not be described again. Compare Rs with Rn. When Rn is greater than Rs, as shown in FIG. 3, the difference between Rn and Rs is d. When Rn is greater than Rs and the difference between the two is greater than or equal to the time threshold, the UE may preferentially select the neighbor cell. . It should be understood that the value range of the difference is not limited in the embodiment of the present invention, and d may also be taken as 0.

Specifically, for the setting of the time threshold, the configuration parameters of the CSI-RS signal and the configuration parameters of the CRS signal may be inconsistent, such as different time periods of occurrence of the CSI-RS signal and the CRS signal, and correspondingly, the time threshold setting Is tl. The time threshold may be set correspondingly by the priority order of the cells that the operator has configured, for example, the priority of the first cell is higher than the second cell, and when the measured value of the first cell is greater than the measured value of the second cell, The time threshold is set to 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 to t3. The time threshold may also be set according to the type of reference signal employed by the first cell and the second cell and/or the inter-frequency characteristics of the first cell and the second cell. As an implementation manner, the UE may preset the foregoing time threshold. In another embodiment, 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 performs measurement on each cell, and obtains measurement values of each cell, and when the time when the comparison result of the measurement value of the cell is constant is greater than or equal to the time threshold, the UE performs cell selection, cell reselection, or triggering. The report results are reported. Therefore, in a cell scenario in which CSI-RS is introduced in mobility management, a time threshold is set based on a cell priority order, a reference model type, a configuration parameter of a reference signal, and/or a different frequency characteristic of a cell. In this way, it can be effective The UE ensures that the UE selects a stable cell and provides flexibility in mobility management.

4 is a flow chart of a method of mobility management in accordance with another embodiment of the present invention. The method of Figure 4 is performed 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. Perform a cell selection, a cell reselection, or trigger a report of the measurement result according to the fifth measurement value when a duration of the comparison between the fifth measurement value and the first threshold value is greater than or equal to the time threshold value.

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

In the embodiment of the present invention, when the user equipment measures the cell, and the time when the comparison between the measurement value of the cell and the threshold value is greater than or equal to the time threshold, the UE performs cell selection, cell reselection, or triggers the measurement result. . Therefore, in a cell scenario in which CSI-RS is introduced in mobility management, a time threshold is set based on a cell priority order, a reference model type, a configuration parameter of a reference signal, and/or a different frequency characteristic of a cell. In this way, it is possible to effectively ensure that the UE selects a stable cell and provides flexibility in mobility management.

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

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. And when the comparison result of the fifth measurement value and the first threshold value and the continuous comparison time of the sixth measurement value and the second threshold value are greater than or equal to the time threshold value, according to the fifth measurement value and the sixth measurement value Cell selection, cell reselection or triggering the reporting of measurement results.

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

The embodiments of the present invention are described in detail below with reference to specific examples.

For example, when the UE is in the connected state, the UE can selectively measure the measured value of a certain cell. Specifically, when the UE measures that the measured value of one of the neighboring cells is greater than or equal to the first threshold, and the measured value is greater than or equal to the threshold, the UE may report the measurement result. To the base station, so that the base station performs cell handover. The UE may report the measurement result to the UE when the measured value of the current serving cell is less than or equal to the second threshold, and the time when the measured value is less than or equal to the second threshold is greater than or equal to the time threshold. The base station, so that the base station performs cell handover. For the setting of the time threshold, refer to the above, and I will not repeat them here. It should be understood that the embodiment of the present invention is 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 the two cells, and compare the measured values of the two cells with the corresponding thresholds. When the comparison result is longer than or equal to the time threshold, Perform cell selection, cell reselection, or trigger the reporting of measurement results. Specifically, when the UE is in the connected state, the UE may measure the measured value Rs of the current serving cell and may also selectively measure the measured value Rn of a neighboring cell. When Rn is greater than or equal to the first threshold VI corresponding to the serving cell, and Rs is less than or equal to the second threshold V2 corresponding to the neighbor cell, and the comparison result is longer than or equal to the time threshold, the UE may 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 merely exemplary and not limiting of the embodiments of the present invention. In the embodiment of the present invention, when the user equipment measures the cell, and the time when the comparison between the measurement value of the cell and the threshold value is greater than or equal to the time threshold, the UE performs cell selection, cell reselection, or triggers the measurement result. . Therefore, in a cell scenario in which CSI-RS is introduced in mobility management, a time threshold is set based on a cell priority order, a reference model type, a configuration parameter of a reference signal, and/or a different frequency characteristic of a cell. In this way, it is possible to effectively ensure that the UE selects a stable cell and provides flexibility in mobility management.

Figure 5 is a flow diagram of a method of mobility management in accordance with one embodiment of the present invention. The method of Figure 5 is performed by a 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, by using, configuration information of the third reference signal by the second cell. Four reference signals.

Wherein, the third reference signal and the fourth reference signal both 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 the configuration information of the reference signal sent by the first cell. Therefore, in the cell scene in which the CSI-RS is introduced in the mobility management, the UE performs measurement based on the same or similar reference signals in the measurement of the cell selection, cell reselection or triggering of the measurement result. In this way, the accuracy of the measurement can be effectively ensured.

Optionally, as another embodiment, the second cell may configure a configuration parameter of the fourth reference signal used by the second cell according to the configuration information of the third reference signal used by the first cell. The configuration parameter of the fourth reference signal is 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: number of ports of the reference signal, subframe configuration of the reference signal, resource configuration of the reference signal, reference The sequence configuration of the signal.

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

Figure 6 is a block diagram of a user equipment in accordance with one embodiment of the present invention. The user equipment 50 of Fig. 6 includes a determining unit 51 and a control unit 52.

The determining unit 51 is configured to determine a first measurement value based on the first reference signal used by the first cell, and determine a 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 triggering the reporting of the measurement result according to the first measurement value determined by the determining unit 51, the second measurement value determined by the determining unit 51, and the offset value.

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

The user equipment 50 can implement the operations related to the user equipment in the embodiment of Fig. 1, and therefore will not be described in detail in order to avoid repetition.

Optionally, as an embodiment, the setting manner of the offset value includes at least one of the following manners: setting according to a priority of the cell, setting according to a type of the first reference signal and a 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, and are set according to the inter-frequency characteristics of the first cell and the second cell. This provides flexibility in mobility management.

Optionally, as another embodiment, the control unit 52 is specifically configured to: obtain a measurement value of the first cell by adding a sum of the first measurement value and the offset value, and the second measurement value is a second cell Measured value, performing cell selection or cell reselection according to a 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 The measured value of the cell is used to trigger the reporting of the measurement result; or

Specifically, the method includes: adding a first measurement value to a hysteresis value to obtain a measurement value of the first cell, and adding a second measurement value to the offset value to obtain a measurement value of the second cell, according to the measured value of the first cell and the second The priority of the first cell and the second cell determined by the measured value of the cell is sequentially performed for cell selection or cell reselection, or the measurement result is triggered according to the measured value of the first cell and the measured value of the second cell; or

Specifically, the method includes: adding an offset value to the measured value determined according to the CSI-RS in the first measured value and the second measured value, or adding the offset value to the first measured value and the second measured value according to the CRS. 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. Selecting or reselecting the cell, or triggering the reporting of the measurement result according to the measured value of the first cell and the measured 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. Figure Ί is a block diagram of a user equipment in accordance with one embodiment of the present invention. The user device 60 of FIG. 7 includes a determining 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 duration of the comparison between the third measured value and the fourth measured value of the determining unit 61 is greater than or equal to the time threshold, according to the third measured value, the fourth measured value, and the partial The value is shifted, and the cell selection, cell reselection, or triggering of the measurement result is reported.

The time threshold setting manner includes at least one of the following manners: setting according to a priority of the cell, according to a type of the first reference signal used by the first cell and a type of the second reference signal used by the second cell. The setting is set according to the configuration parameter of the first reference signal and the configuration parameter of the second reference signal, and is set according to the inter-frequency characteristic of the first cell and the second cell.

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 first Both reference signals include CSI-RS.

User equipment 60 may implement the operations involved in the user equipment in the embodiments of Figures 2 and 3, and thus will not be described in detail to avoid redundancy.

Optionally, as another embodiment, the user equipment 60 may further include: a receiving unit 63, configured to receive the time threshold notified by the base station; or the control unit 62 is further configured to: preset a time threshold. Figure 8 is a block diagram of a user equipment in accordance with another embodiment of the present invention. The user equipment 70 of FIG. 8 includes a determining 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 between the fifth measurement value determined by the determining unit 71 and the first threshold is greater than or equal to the time threshold. Or trigger the reporting of measurement results.

The user equipment 80 can implement the operations related to the user equipment in the embodiment of FIG. 4, and thus will not be described in detail in order to avoid repetition.

Optionally, as an embodiment, the determining unit 71 is further configured to: determine, according to the second reference signal used by the second cell, the sixth measurement value of the second cell. The control unit 72 is further configured to: when the comparison result of the fifth measurement value and the first threshold value and the continuous comparison time of the sixth measurement value and the second threshold value are greater than or equal to the time threshold value, according to the fifth measurement The value and the sixth measured value are used for cell selection, cell reselection, or triggering 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 notified by the base station; or the control unit 72 is further configured to: preset a time threshold.

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

The receiving unit 81 is configured to receive, by the second cell, configuration information of a third reference signal used by the first cell and sent by the first cell, where The configuration unit 82 is configured to configure, by the second cell, 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.

The third reference signal and the fourth reference signal each 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, and therefore, in order to avoid repetition, details are not described in detail.

Optionally, as an embodiment, the configuration unit 82 is specifically configured to: configure a configuration parameter of the fourth reference signal; the configuration parameter of the fourth reference signal is the same as the configuration parameter of the third reference signal, and the configuration parameter includes at least 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 the configuration information of the reference signal sent by the first cell. Therefore, in the cell scene in which the CSI-RS is introduced in the mobility management, the UE performs measurement based on the same or similar reference signals in the measurement of the cell selection, cell reselection or triggering of the measurement result. In this way, the accuracy of the measurement can be effectively ensured. Example. The embodiments of the present invention can be applied to user equipments and network side devices in various communication systems. FIG. 10 shows an embodiment of an apparatus. In this embodiment, apparatus 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. Processor 806 controls the operation of device 800, which may also be referred to as a central processor CPU or processor. Memory 807 can include read only memory and random access memory and provides instructions and data to 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 may itself be a wireless communication device such as a mobile phone, and may also include a transmitter.

The carrier of 802 and receiver 803 to allow data transmission and reception between device 800 and a remote location. Transmitter 802 and receiver 803 can be coupled to antenna 801. The various components of device 800 are coupled together by a bus system 810, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 810 in the figure. The device 800 can also include a processor 806 for processing signals, and further includes a power controller 804 and a decoding processor 805. .

The method disclosed in the foregoing embodiments of the present invention may be applied to the foregoing apparatus 800, or mainly by the processor 806 and the receiver 803 therein. Processor 806 may be an integrated circuit core Slice, with signal processing capabilities. 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 an instruction in a form of software. For performing the method disclosed in the embodiments of the present invention, the foregoing decoding processor may 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 gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor, decoder or the like. The steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. 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 the hardware thereof.

Further, FIG. 11 is a structural block diagram of a user equipment according to an embodiment of the present invention. User device 1100 of Figure 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 the second reference signal used by the second cell stored in the memory 120. And performing cell selection, cell reselection, or triggering reporting of the measurement result according to the determined first measurement value, the second measurement value, and the offset value.

The user equipment 1100 can implement the operations related to the user equipment in the embodiment of FIG. 1, and therefore, in order to avoid repetition, details are not described in detail.

Optionally, as an embodiment, the setting manner of the offset value includes at least one of the following manners. 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, setting according to the configuration parameter of the first reference signal and the configuration parameter of the second reference signal, according to the first cell And setting the inter-frequency characteristic of the second cell. This provides flexibility in mobility management.

Optionally, in another embodiment, the processor 110 is specifically configured to: obtain a measurement value of the first cell by adding a sum of the first measurement value and the offset value, and the second measurement value is a second cell Measured value, performing cell selection or cell reselection according to a 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 The measured value of the cell is used to trigger the measurement result or

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 a user equipment according to another embodiment of the present invention. The user device 20 of FIG. 12 includes a processor 21 and a memory 22.

The processor 21 is configured to determine a third measurement value of the first cell based on the first reference signal used by the first cell stored in the memory 22, based on the second reference signal used by the second cell stored in the memory 22 a fourth measurement value of the second cell, when the time when the determined comparison result of 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, the fourth measurement The value and the offset value are used for cell selection, cell reselection, or triggering the measurement result.

The time threshold setting manner includes at least one of the following manners: 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, setting according to the configuration parameter of the first reference signal and the configuration parameter of the second reference signal And setting according to the different frequency characteristics of the first cell and the second cell.

User equipment 20 may implement operations involving user equipment in the embodiments of Figures 2 and 3, and thus will not be described in detail to avoid redundancy.

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

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

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

The time threshold setting mode includes at least one of the following manners: setting according to the priority of the cell, setting according to the type of the reference signal of the cell, according to the reference signal used by the cell. The configuration parameters are set and set according to the inter-frequency characteristics between cells. 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 the second reference signal used by the second cell stored in the memory 32. The processor 31 is further configured to: when the comparison result of the fifth measurement value and the first threshold value and the continuous comparison time of the sixth measurement value and the second threshold value are greater than or equal to a time threshold value, according to the The five measured values and the sixth measured 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, and thus will not be described in detail in order to avoid repetition.

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 a time threshold.

Figure 14 is a block diagram of a network side device in accordance with one embodiment of the present invention. The network side device 40 of Fig. 14 includes a receiver 41 and a processor 42.

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

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

The network side device 40 can implement the operations related to the network side device in the embodiment of FIG. 5, and therefore, in order to avoid repetition, it will not be described in detail.

Optionally, as an embodiment, the processor 42 is specifically configured to: configure a configuration parameter of the fourth reference signal; a configuration parameter of the fourth reference signal is the same as a configuration parameter of the third reference signal, and the configuration parameter includes at least the following One: the number of ports of the reference signal, the subframe configuration of the reference signal, The resource configuration of the test signal, the sequence configuration of the reference signal.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

It will be apparent to those skilled in the art that, for the convenience of the description and the cleaning process, the specific operation of the system, the device and the unit described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, 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 merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

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

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

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, or the part contributing to the prior art, or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A mobility management method, characterized by including:

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;

According to the first measurement value, the second measurement value and the offset value, perform cell selection, cell reselection or trigger the 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 CSI-RS, and the second reference signal includes CRS; or both the first reference signal and the second reference signal include CSI-RS.

2. The method according to claim 1, wherein the setting method of the offset value includes at least one of the following methods: setting according to the priority of the cell, setting according to the type and type of the first reference signal. The type of the second reference signal 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 inter-frequency characteristics of the first cell and the second cell. .

3. The method of claim 2, wherein 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.

4. The method according to any one of claims 1 to 3, characterized in that, based on the first measurement value, the second measurement value and the offset value, cell selection, cell reselection or triggering measurement results are performed reporting, including:

The measured value of the first cell is obtained by adding the hysteresis value to the sum of the first measured value and the offset value. The second measured value is the measured value of the second cell. According to the measured value of the first cell Cell selection or cell reselection is performed based on 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 based on the measured value of the first cell and the measured value of the second cell. The measurement value of the second cell is the upper limit of the trigger measurement result; or

Add the hysteresis value to the first measurement value to obtain the measurement value of the first cell, and add the second measurement value to the offset value to obtain the measurement value of the second cell. According to the measurement of the first cell Cell selection or cell reselection is performed based on 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 based on the measured value of the first cell and the measured value of the second cell. Small The measurement value in the area triggers the measurement result; or

The offset value is added to the measurement value determined according to the CSI-RS among the first measurement value and the second measurement value, or the offset value is added to the first measurement value and the second measurement value. Among the measurement values determined according to the CRS, the measurement value of the first cell and the measurement value of the second cell are obtained, and the measurement value of the first cell determined by the measurement value of the first cell and the measurement value of the second cell is obtained Perform cell selection or cell reselection according to the priority order of the second cell, or perform triggering measurement results based on the measurement value of the first cell and the measurement value of the second cell.

5. The method according to any one of claims 1 to 4, wherein cell selection, cell reselection or triggered measurement is performed according to the first measurement value, the second measurement value and the offset value. Before the results are obtained, the method further includes:

Receive the offset value notified by the base station; or

The offset value is set in advance.

6. The method according to any one of claims 1 to 5, characterized in that the first cell is a serving cell, and the second cell is a neighbor cell.

7. A mobility management method, characterized by including:

Determine a third measurement value of the first cell based on the first reference signal used by the first cell; Determine a fourth measurement value of the second cell based on the second reference signal used by the second cell; When the third measurement value is consistent with the When the duration of the comparison result of the fourth measurement value is greater than or equal to the time threshold value, cell selection, cell reselection, or reporting of measurement results is triggered based on the third measurement value and the fourth measurement value;

The time threshold setting method includes at least one of the following methods: setting according to the priority of the cell, according to the type of the first reference signal used by the first cell and the second reference signal used by the second cell. The signal type 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 inter-frequency characteristics of the first cell and the second cell;

8. The method of claim 7, wherein 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, Sequence configuration of the reference signal.

9. The method of claim 7 or 8, wherein the method further includes: receiving the time threshold notified by the base station; or

The time threshold is set in advance.

10. The method according to any one of claims 7-9, characterized in that the first cell is a serving cell, and the second cell is a neighbor cell.

11. A mobility management method, characterized by including:

Determine the fifth measurement value of the first cell based on the first reference signal used by the first cell; When the duration of the comparison result between the fifth measurement value and the first threshold remains unchanged is greater than or equal to the time threshold value, according to The fifth measurement 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, 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, setting according to the Set the inter-frequency characteristics;

Wherein, the first reference signal includes a channel state information reference signal CSI-RS.

12. The method of claim 11, wherein the method further comprises: determining a sixth measurement value of the second cell based on a second reference signal used by the second cell; When the comparison result of a threshold value and the comparison result of the sixth measurement value and the second threshold value remain unchanged for longer than or equal to the time threshold value, perform cell operation based on the fifth measurement value and the sixth measurement value. selection, cell reselection or triggering the reporting of measurement results.

13. The method according to claim 11 or 12, wherein the method further includes: receiving the time threshold value notified by the base station; or

The time threshold is set in advance.

14. A mobility management method, characterized by including:

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

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

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

15. The method of claim 14, wherein the second cell is configured according to the The configuration information of the third reference signal configures the fourth reference signal used by the second cell, including: configuring 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 subframe configuration of the reference signal, the resource configuration of the reference signal, Sequence configuration of the reference signal.

16. A user equipment, characterized by: including:

Determining unit, 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;

A control unit configured to perform cell selection, cell reselection or trigger the reporting of measurement results based on the first measurement value determined by the determination unit, the second measurement value and the offset value determined by the determination unit;

17. The user equipment according to claim 16, wherein the setting method of 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, are set according to the configuration parameters of the first reference signal and the configuration parameters of the second reference signal, and are set according to the inter-frequency characteristics of the first cell and the second cell. set up.

18. The user equipment according to claim 16 or 17, characterized in that the controller is specifically used to:

Specifically used to: add the hysteresis value to the first measurement value to obtain the measurement value of the first cell, add the offset value to the second measurement value to obtain the measurement value of the second cell, according to the Cell selection or cell reselection is performed based on the priority order of the first cell and the second cell determined by the measurement value of one cell and the measurement value of the second cell, or based on the sum of the measurement value of the first cell and The measurement value of the second cell is the upper limit of the trigger measurement result; or

Specifically used for: adding the offset value to the first measured value and the second measured value according to

The measurement value of the first cell and the measurement value of the second cell are obtained by adding the offset value to the measurement value determined according to the CRS in the first measurement value and the second measurement value. Measurement value, cell selection or cell reselection 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, or based on the The measurement value of the first cell and the measurement value of the second cell trigger the reporting of measurement results.

19. The user equipment according to any one of claims 16 to 18, characterized in that the user equipment further includes:

A receiving unit, configured to receive the offset value notified by the base station; or

The control unit is also used for:

The offset value is set in advance.

20. A user equipment, characterized by: including:

a determining unit, configured to determine the third measurement value of the first cell based on the first reference signal used by the first cell, and determine the fourth measurement value of the second cell based on the second reference signal used by the second cell; a control unit, configured to determine When the duration of the comparison result between the third measurement value and the fourth measurement value determined by the determination unit remains unchanged greater than or equal to the time threshold value, based on the third measurement value and the fourth measurement value, The measurement value is used for 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, and setting according to the first cell used. 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 are set according to the first reference signal. The inter-frequency characteristics of the cell and the second cell are set.

21. The user equipment according to claim 20, characterized in that the user equipment further includes:

A receiving unit, configured to receive the time threshold value notified by the base station; or The control unit is also used for:

The time threshold is set in advance.

22. The user equipment according to claim 20 or 21, wherein the first cell is a serving cell, and the second cell is a neighbor cell.

23. A user equipment, characterized by: including:

Determining unit, configured to determine the fifth measurement value of the first cell based on the first reference signal used by the first cell;

A control unit configured to perform cell selection, cell reselection or triggering based on 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 value. Reporting of measurement results;

24. The method of claim 23, wherein the determining unit 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 is further configured to: : When the duration of the comparison between the fifth measurement value and the first threshold and the comparison between the sixth measurement value and the second threshold is greater than or equal to the time threshold value, according to the fifth measurement The value and the sixth measurement value are used to perform cell selection, cell reselection or trigger the reporting of measurement results.

25. The method according to claim 23 or 24, characterized in that the user equipment further includes:

A receiving unit, configured to receive the time threshold value notified by the base station; or

The control unit is also used to: preset the time threshold value.

26. A network side device, characterized by including:

A receiving unit 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;

A configuration unit 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;

27. The network side device according to claim 26, characterized in that the configuration unit is specifically used for:

Configure configuration parameters of the fourth reference signal;