CN101965024A

CN101965024A - Report set measurement and trigger measurement report based method, system and user terminal (UE)

Info

Publication number: CN101965024A
Application number: CN2009100897247A
Authority: CN
Inventors: 朱昀; 王曼; 谢玉堂
Original assignee: ZTE Corp
Current assignee: Shenzhen Fu Hai Sunshine Technology Co Ltd
Priority date: 2009-07-21
Filing date: 2009-07-21
Publication date: 2011-02-02
Anticipated expiration: 2029-07-21
Also published as: CN101965024B

Abstract

The invention discloses a report set measurement and trigger measurement report based method. The method comprises the following step of: after user equipment (UE) receives a measurement control parameter from a network element (NE) of a network side, establishing a report set according to the measurement control parameter and measuring a cell in a monitoring set. The invention also discloses a report set measurement and trigger measurement report based system which comprises a report set establishing unit and a measuring unit, wherein the report set establishing unit is used for establishing the report set according to the measurement control parameter, and the measuring unit is used for measuring the cell in the monitoring set according to the measurement control parameter. The invention also discloses UE applying the method, which comprises a report set establishing unit and a measuring unit, wherein the report establishing unit is used for establishing the report set according to the measurement control parameter, and the measuring unit is used for measuring the cell in the monitoring set according to the measurement control parameter. By adopting the method, the system and the UE, UE measurement and UE trigger measurement reports can be accurately reported in time.

Description

Method, system and user terminal for measuring and triggering measurement report based on reporting set

Technical Field

The present invention relates to the field of mobile communication technology, and in particular, to a method and a system for measuring and triggering measurement report reporting based on a reporting set when applied to cell handover in a time division synchronous code division multiple access (TD-SCDMA) system of third generation mobile communication, and a User Equipment (UE) applying the method.

Background

In a mobile communication system, the mobility of the UE makes it necessary to perform handover between different cells, and the handover is performed by a process roughly including: the UE receives a measurement control message from the network side and configures measurement parameters according to the message content; the UE measures the current serving cell and other adjacent cells in real time, the cells are called a monitoring set, and the content of the measurement can be the signal quality or the signal strength of the cell; if the measurement result of a certain cell meets the predefined trigger condition, the UE reports a measurement report to the network side, the measurement report is also called as a measurement report event, and the predefined trigger condition is also notified to the UE by the network side through a measurement control message; and finally, the network side judges whether the UE performs switching and which new cell to switch to according to the content of the measurement report. The schematic diagram of UE handover is shown in fig. 1, where the hatched area filled with oblique lines in fig. 1 represents the intersection area of cell a and cell B, and the arrow direction in fig. 1 represents the moving direction of the UE.

It can be seen that the precondition for realizing the correct handover of the UE is to accurately measure and report the measurement report in time. For TD-SCDMA, more specifically, the prior art generally implements the procedures of UE measurement and reporting measurement report as follows: if the Received Signal Code Power (RSCP) value is better than the current serving cell on a primary common control physical channel (P-CCPCH) channel of a certain monitoring cell, the UE triggers to send a measurement Report to a network controller (RNC), and the measurement Report triggered and reported at this time is called a measurement Report event for updating the best cell: change of bestcell).

However, since a series of processes of obtaining a measurement result from the UE, triggering the measurement report to the RNC receiving the measurement report, deciding handover, and the RNC informing the UE to perform handover, a certain time elapses, during which if the radio environment quality is rapidly degraded, the UE cannot complete a normal handover procedure due to insufficient radio signals, thereby affecting call quality. As shown in fig. 2, the UE has not yet reached the completion of the handover, and the level value of its radio link has been too low, resulting in a dropped call. There is therefore a need for improvement over the prior art in some real-world scenarios, a typical one being: for example, a UE moving at a high speed along a railway needs to perform multiple handovers between different cells, and since the radio environment of the UE is often subjected to severe time variation, the quality of the radio environment is rapidly reduced, and the quality of a call is affected. If the RNC can obtain the information reported by the UE as early as possible, the RNC can achieve a better handover effect when performing the UE handover decision, so that an implementation scheme that can accurately and timely implement UE measurement and UE triggered measurement report reporting is urgently needed.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide a method, a system and a UE for measuring and triggering a measurement report based on a reporting set, which can accurately and timely report the measurement report and the measurement report triggered by the UE.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a method of measuring and triggering measurement reporting based on a reporting set, the method comprising:

and after receiving the measurement control parameters from the network element of the network side, the UE establishes a reporting set and measures the cells in the monitoring set according to the measurement control parameters.

Wherein the measurement control parameters include: the size of the reporting set, the neighbor cell list and the measurement parameters, and optionally the way in which the UE reports the measurement report and optionally the supplementary parameters.

The size of the reported set is sent to the UE by a network element of the network side through a measurement control message; or, the size of the reporting set is agreed in advance between the network element of the network side and the UE.

The size of the reporting set, the neighboring cell list and the measurement parameters, as well as the optional reporting mode of the measurement report by the UE and the optional supplementary parameters are encapsulated in a measurement control message and are issued to the UE by a network element on the network side;

or, the size of the reporting set, the neighboring cell list and the measurement parameters, and optionally the manner in which the UE reports the measurement report and optionally the supplementary parameters are encapsulated in at least two measurement control messages, and are issued to the UE by a network element on the network side; wherein each measurement control message contains any combination of the measurement control parameters.

According to the size of the reporting set, the UE selects no less than n cells from the monitoring set to establish the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE;

and according to the adjacent cell list and the measurement parameters, the UE measures the cells in the monitoring set.

Wherein the selecting of not less than n cells specifically comprises: by an optional mode, the UE randomly selects n cells from the monitoring set; or, through the measuring and selecting mode of the cell measurement in the monitoring set, the UE selects n cells with the best signal quality from the monitoring set;

or, when the UE cannot support measurement on n cells or cannot establish a reporting set including n cells, the UE selects fewer than n cells from the monitoring set according to its own capability.

Wherein the method further comprises: when the measurement result meets the trigger condition of reporting set updating, the UE updates the reporting set; the triggering condition of the update of the reporting set is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

When the UE meets the mode of reporting the measurement report by the UE set in the measurement control parameters, the UE reports the measurement report to a network element on a network side; wherein the reported measurement report is as follows: and reporting the measurement reports of all the cells in the set.

The method for reporting the measurement report by the UE comprises the following steps: and updating at least one of an instant reporting mode of the UE, a periodic reporting mode of the UE and a mode of informing the UE of reporting by a network element of a network side through a command by the reporting set.

When the reporting mode of the UE is the mode of updating the reporting set and reporting the UE immediately, the UE updates the reporting set and reports the measurement report to a network element of the network side.

Wherein, the update report set specifically comprises: and adding the cells with the excellent signal quality which are not in the reporting set into the reporting set, and removing the cells in the reporting set corresponding to the poor signal quality from the reporting set.

Wherein the information in the measurement report at least comprises: a cell number of each cell and a measurement result corresponding to each cell.

Wherein the reported measurement report is as follows: and the measurement reports of all the cells in the reporting set after the updating of the reporting set and the measurement reports of the cells removed from the reporting set.

Wherein the information in the measurement report at least comprises: the reason for reporting the measurement report by the UE is to report a set update event.

Wherein, when the UE receives the supplementary parameters, the method further comprises: correcting the trigger condition of the update of the reporting set; wherein,

the supplementary parameters include: a hysteresis parameter or a delay parameter.

Wherein, under the condition of the hysteresis parameter, the modified trigger condition for updating the reporting set specifically includes: a hysteresis parameter that the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set and better than the signal quality of cells in the reporting set;

under the condition of the delay parameter, the modified triggering condition for updating the reporting set specifically includes: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set and a delay parameter is maintained.

When the mode of reporting the measurement report by the UE is the mode of periodically reporting by the UE, the UE measures the cells in the monitoring set at intervals of time T according to the reporting period T corresponding to the mode of periodically reporting by the UE, and reports the measurement report to the network element on the network side.

A system for reporting set measurements and triggering measurement reporting, the system comprising: a receiving unit of the UE side, a report set establishing unit of the UE side and a measuring unit of the UE side; wherein,

a receiving unit, configured to receive a measurement control parameter from a network element on a network side by the UE, and send the measurement control parameter to the reporting set establishing unit and the measuring unit;

a reporting set establishing unit, configured to establish a reporting set according to the measurement control parameter;

and the measurement unit is used for measuring the cells in the monitoring set according to the measurement control parameters.

The system also comprises a network side issuing unit, which is used for the network element of the network side to package the size of the reporting set, the adjacent cell list and the measurement parameters, as well as the optional mode of reporting the measurement report by the UE and the optional supplementary parameters, which are included in the measurement control parameters, into a measurement control message and issue the measurement control message to the UE;

or, the network element at the network side encapsulates the size of the reporting set, the neighboring cell list and the measurement parameters included in the measurement control parameters, and optionally the mode of reporting the measurement report by the UE and optionally the supplementary parameters in at least two measurement control messages, and issues the measurement control messages to the UE; wherein each measurement control message contains any combination of the measurement control parameters.

The reporting set establishing unit is further configured to select, by the UE, not less than n cells from the monitoring set to establish the reporting set according to the size of the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE;

the measurement unit is further configured to measure, by the UE, the cells in the monitoring set according to the neighboring cell list and the measurement parameter.

The reporting set establishing unit is further configured to select n cells from the monitoring set by the UE in an optional manner; or, through the measuring and selecting mode of measuring the cells in the monitoring set, the UE selects n cells with the best signal quality from the monitoring set;

The system also comprises a reporting set updating unit, which is used for updating the reporting set by the UE when the measurement result meets the triggering condition of the updating of the reporting set; the triggering condition of the update of the reporting set is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

Wherein, this system still includes: a reporting unit of the UE side, configured to report the measurement report to a network element of the network side when the UE satisfies a mode of reporting the measurement report by the UE set in the measurement control parameter;

The method for reporting the measurement report by the UE specifically comprises the following steps: under the condition that the reporting set updates the instant reporting mode of the UE, the measurement unit is further used for the UE to always measure the cells in the monitoring set; the reporting unit is further configured to update the reporting set when the measurement result meets a triggering condition for updating the reporting set, and report the measurement report to a network element on the network side;

the method for reporting the measurement report by the UE specifically comprises the following steps: under the condition of the mode of periodical reporting by the UE, the measurement unit is further used for measuring the cells in the monitoring set at intervals of time T by the UE; the reporting unit is further configured to report the measurement report to a network element of the network side at intervals of time T by the UE.

Wherein the reporting unit further includes: a reporting set updating module and a measurement report reporting module; wherein,

a reporting set updating module, configured to add a cell with high signal quality that is not in the reporting set to the reporting set, and remove a cell with low signal quality from the reporting set, so as to complete updating of the reporting set;

a measurement report reporting module, configured to report the measurement reports of all cells in the updated reporting set to a network element on the network side; or reporting the measurement reports of all cells in the updated reporting set and the measurement reports of the cells removed from the reporting set to a network element at the network side.

A user equipment applying a method of measuring and triggering a measurement report based on a reporting set, the user equipment comprising: the device comprises a receiving unit, a reporting set establishing unit and a measuring unit; wherein,

The receiving unit is further configured to receive, from a network element on a network side through a measurement control message, the size of a reporting set, a neighboring cell list, and measurement parameters included in the measurement control parameters, and optionally a mode and optionally supplementary parameters for UE to report a measurement report;

or, receiving, from a network element on a network side, the size of a reporting set, a neighboring cell list, and measurement parameters included in the measurement control parameters, and optionally a mode and optionally supplementary parameters for reporting a measurement report by the UE, through at least two measurement control messages; wherein each measurement control message contains any combination of the measurement control parameters.

The UE also comprises a reporting set updating unit, which is used for updating the reporting set by the UE when the measurement result meets the triggering condition of the updating of the reporting set; the triggering condition of the update of the reporting set is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

Wherein, this user terminal still includes: a reporting unit, configured to report, when the UE satisfies a measurement report reporting mode set in the measurement control parameter, the measurement report to a network element on the network side;

After receiving the measurement control parameters from the network element of the network side, the UE of the invention establishes a reporting set and measures the cells in the monitoring set according to the measurement control parameters.

By adopting the invention, the UE measurement and the report of the UE triggering measurement report can be accurately and timely realized through the established report set, so that the UE can report information to the RNC as early as possible and as much as possible, and the RNC can achieve better switching effect when executing UE switching judgment.

Drawings

FIG. 1 is a diagram of a UE handoff;

FIG. 2 is a diagram illustrating a UE handover failure according to the prior art;

FIG. 3 is a schematic diagram of a process for implementing UE handover according to the present invention;

fig. 4 is a schematic diagram of an information interaction flow between the UE and the RNC in embodiment 1 that triggers reporting of a measurement report when reporting set update is adopted;

fig. 5 is a schematic diagram of an information interaction flow between a UE and an RNC in embodiment 2 that periodically reports measurement reports;

fig. 6 is a schematic diagram of a cell signal triggering update of a reporting set in embodiment 3 with a hysteresis parameter;

fig. 7 is a schematic diagram of a cell signal triggering reporting set update when a delay parameter exists in embodiment 4.

Detailed Description

The basic idea of the invention is: and after receiving the measurement control parameters from the network element of the network side, the UE establishes a reporting set and measures the cells in the monitoring set according to the measurement control parameters.

The following describes the embodiments in further detail with reference to the accompanying drawings.

The following describes the prior art and the present invention in comparison to better appreciate the advantages of the present invention over the prior art.

In the prior art, since a series of processes of obtaining a measurement result from a UE, triggering a measurement report to an RNC receiving the measurement report, deciding handover, and the RNC notifying the UE to perform handover, a certain time elapses, during which if the quality of a radio environment is rapidly reduced in some scenarios, the UE cannot complete a normal handover procedure due to insufficient radio signals, thereby affecting call quality. For example, in a scenario of a UE moving at a high speed along a railway, since the radio environment of the UE often experiences severe time variation, the quality of the radio environment is rapidly reduced, and the quality of a call is affected.

In view of the above-mentioned shortcomings of the prior art in some scenarios, the present invention provides a solution for implementing UE measurement and measurement report triggering during cell handover in a TD-SCDMA system, and a UE using the solution.

Without going back to the handover failure example shown in fig. 2 above, it is pointed out that the reason for the call drop is that the radio signal quality of the original cell is too low before the UE has reached completion of the handover procedure. Therefore, to avoid handover call drop, on one hand, the step of reporting the measurement report by the UE must be advanced; on the other hand, if the network side, specifically the RNC, can obtain more information about the UE radio environment, the RNC can integrate other information, such as the measurement report obtained by the RNC from the base station, the network cell geographical information stored in the RNC, and the like, to make a handover decision timely and accurately. In view of the above, in the present invention, the UE should report more measurement reports on the signal quality of the neighboring cell and the current serving cell to the RNC at an earlier time.

The conception of the invention is mainly as follows: a reporting cell set is set in the UE, the set comprises n cells in a monitoring set with the best signal quality, n is more than or equal to 2, and the specific value of n can be specified by a network side or determined according to the processing capacity of the UE. When the UE finds that the signal quality of a cell which is not in the reporting set is better than that of the cell in the reporting set in the measurement, the UE updates the reporting set, namely, the cell with good signal quality is added into the reporting set, and the cell with poor signal quality in the reporting set is removed. For the cells in the reporting set, the UE reports their measurement reports to the network side periodically or periodically; or reporting the measurement report to the network side while updating the reporting set. The two ways of triggering the UE to report the measurement report may exist simultaneously or only one of them may be used.

Compared with the prior art, the invention changes the mode that the UE reports the measurement report to the network side by introducing the reporting set, so that the UE reports the signal quality conditions of more monitored cells to the network side, and increases the mastering degree of the RNC to the wireless environment of the UE, therefore, the RNC can provide more timely and accurate switching judgment and target switching cell selection by combining other information, such as the measurement report reported by the base station, the Doppler frequency shift value of the UE, the speed of the UE, network geographic information and the like. Meanwhile, the number of the cells needing to be reported by the UE is enlarged to n, and any update of the cells can cause the update of the reporting set of the UE, so compared with the prior art, the method and the device have the effect of reporting in advance objectively and equivalently, the UE can report information to the RNC as much as possible as soon as possible, and the RNC can achieve a better switching effect when executing UE switching judgment.

The method, system and UE applying the method for reporting set based measurement and triggering measurement report adopted by the present invention will be described in detail below.

A method of measuring and triggering measurement reporting based on a reporting set, the method comprising: and after receiving the measurement control parameters from the network element of the network side, the UE establishes a reporting set and measures the cells in the monitoring set according to the measurement control parameters. The network element on the network side may be an RNC.

Here, the measurement control parameters include: the size of the reporting set, the neighbor cell list and the measurement parameters, and optionally the way in which the UE reports the measurement report and optionally the supplementary parameters. The three parameters of the size of the reported set, the adjacent cell list and the measurement parameter are indispensable and are not indispensable; the way and supplementary parameters in which the UE reports the measurement report are optional. Thus, measuring the control parameter may include: reporting the size of the set, a neighboring cell list and measurement parameters; measuring the control parameter may include: the size of the reporting set, the neighbor cell list and the measurement parameters, and the way of reporting the measurement report by the UE; measuring the control parameter may further include: the size of the reporting set, the neighbor cell list and the measurement parameters, and the manner and supplementary parameters of reporting the measurement report by the UE.

For the size of the reporting set in the measurement control parameter, the network element on the network side has two notification modes to notify the UE of the parameter, the first mode is: the size of the reported set is sent to the UE by the network element of the network side through the measurement control message. The second mode is as follows: the size of the reporting set is predetermined between the network element at the network side and the UE.

When a network element at a network side issues measurement control parameters by using a measurement control message, there are two specific implementations, the first implementation: the size of the reporting set, the neighbor cell list and the measurement parameters, and optionally the mode of reporting the measurement report by the UE and the optional supplementary parameters are encapsulated in a measurement control message and are issued to the UE by a network element on the network side. The second implementation is as follows: the size of the reporting set, the adjacent cell list and the measurement parameters, and optional ways and optional supplementary parameters for UE to report the measurement report are encapsulated in a plurality of measurement control messages and are issued to the UE by a network element at the network side; each measurement control message includes the size of the reporting set in the measurement control parameter, the neighbor cell list, the measurement parameter, and any parameter combination of the optional UE reporting measurement report mode and the optional supplementary parameter.

The specific process of establishing the reporting set and measuring the cells in the monitoring set according to the measurement control parameters comprises the following steps: according to the size of the reporting set, the UE selects no less than n cells from the monitoring set to establish the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE. And according to the adjacent cell list and the measurement parameters, the UE measures the cells in the monitoring set.

The method comprises the following steps that for the UE to select not less than n cells from a monitoring set to establish a reporting set, two conditions are included, and the first condition is that the n cells are selected to establish the reporting set; the second case is to select less than n cells to establish the reporting set. Specifically, one specific implementation of the first case is as follows: through an optional mode, the UE randomly selects n cells from the monitoring set to establish a reporting set; another specific implementation of the first case is: and according to the adjacent cell list and the measurement parameters, the UE selects n cells with the best signal quality from the monitoring set by a measuring and selecting mode of measuring the cells in the monitoring set so as to establish a reporting set. One specific implementation of the second case is: when the UE can not support the measurement of n cells or can not establish a reporting set containing n cells, the UE selects less than n cells from the monitoring set according to the capability of the UE so as to establish the reporting set.

Here, the method further includes: when the measurement result meets the trigger condition of reporting set updating, the UE updates the reporting set; the triggering conditions for reporting set update are as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

Here, when the UE receives different UE reporting measurement report modes, the method further includes: and the UE measures the cells in the monitoring set in a corresponding mode and reports a measurement report to a network element at a network side. That is, when the UE satisfies the UE reporting measurement report mode set in the measurement control parameter, the UE reports the measurement report to the network element on the network side. The method for reporting the measurement report by the UE comprises the following steps: and updating at least one of an instant reporting mode of the UE, a periodic reporting mode of the UE and a mode of informing the UE of reporting by a network element of a network side through a command by the reporting set.

Since the UE reports the measurement report in different manners, the measurement report is measured and reported differently, and two cases are illustrated below.

In the first case: the mode of reporting the measurement report on the UE is as follows: under the condition that the reporting set updates the mode of instant reporting by the UE, the network element which performs measurement in a corresponding mode and reports a measurement report to the network side specifically comprises the following steps: and according to the adjacent cell list and the measurement parameters, the UE always keeps measuring the cells in the monitoring set, updates the reporting set when the measurement result meets the triggering condition of updating the reporting set, and reports the measurement report to a network element at the network side.

Here, the triggering condition for reporting set update specifically includes: in the measurement, the UE finds that the signal quality of the cells not in the reporting set is better than the signal quality of the cells in the reporting set.

Here, the update report set specifically includes: and adding the cells with the excellent signal quality which are not in the reporting set into the reporting set, and removing the cells in the reporting set corresponding to the poor signal quality from the reporting set.

Here, there are two specific implementations of the reported measurement report, the first is: the reported measurement report is: reporting the measurement reports of all cells in the updated reporting set; and the second method comprises the following steps: the reported measurement report is: and the measurement reports of all the cells in the reporting set after the updating of the reporting set and the measurement reports of the cells removed from the reporting set.

Here, the information in the measurement report includes at least: the reasons for reporting the measurement report by the UE are reporting a set update event, a cell number of each cell, and a measurement result corresponding to each cell.

When the UE receives the supplemental parameters, the method further comprises: correcting the trigger condition of updating the report set; wherein the supplementary parameters include: a hysteresis parameter or a delay parameter.

Here, in the case of the hysteresis parameter, the triggering condition for the modified reporting set update specifically includes: during the measurement, the UE finds that the signal quality of the cell not in the reporting set is better than the signal quality of the cell in the reporting set and better than a hysteresis parameter of the signal quality of the cell in the reporting set.

Under the condition of the delay parameter, the modified triggering condition for updating the reporting set specifically includes: during the measurement, the UE finds that the signal quality of the cells not in the reporting set is better than that of the cells in the reporting set, and keeps a delay parameter.

In the second case: the mode of reporting the measurement report on the UE is as follows: under the condition of the periodic reporting mode of the UE, the measuring in the corresponding mode and reporting the measurement report to the network element of the network side specifically include: and according to the reporting period T corresponding to the periodical reporting mode of the UE, the UE measures the cells in the monitoring set at intervals of time T and reports the measurement report to a network element at the network side.

Here, the measurement report reported is: and reporting the measurement reports of all the cells in the set.

Here, when the UE finds that the signal quality of the cell not in the reporting set is better than that of the cell in the reporting set during the measurement, the method further includes, before reporting the measurement report: and adding the cells with the high signal quality which are not in the reporting set into the reporting set, removing the cells in the reporting set corresponding to the poor signal quality from the reporting set, and finishing the updating of the reporting set.

Correspondingly, there are two specific implementations of the reported measurement report, the first implementation is: the reported measurement report is: reporting the measurement reports of all cells in the updated reporting set; and the second method comprises the following steps: and the measurement reports of all the cells in the reporting set after the updating of the reporting set and the measurement reports of the cells removed from the reporting set.

Here, the information in the measurement report includes at least: a cell number of each cell and a measurement result corresponding to each cell.

In summary, the present invention includes the following main contents:

as shown in fig. 3, the process of measuring when the UE completes cell handover and sending a measurement report to the network side and the network side to decide handover is illustrated, and includes the following steps:

step 101, RNC sends down measurement control message to UE, and carries measurement control parameter related to UE measurement.

It should be noted that the measurement control message may include several parameter options, and each parameter option determines a parameter setting related to UE measurement and/or triggering reporting of a measurement report.

Option A: reporting the size of the set, namely the value of n;

and option B: a neighbor cell list; the cells in the adjacent cell list and the current service cell where the UE is located form a monitoring set;

and option C: a measurement parameter, i.e. the content of the measurement, which reflects the cell signal quality, which may be the RSCP value on the CCPCH channel of this cell or the interference signal code power value (ISCP) on the TS0 time slot;

option D: the method for reporting the measurement report by the UE has three modes, namely reporting the measurement report when the reporting set is updated; the UE may also be required to report cell measurement reports periodically; RNC can inform UE to report; the three modes can coexist, and only one of the three modes can be used; if the reporting mode is the periodic reporting mode, the RNC also gives a reporting period T in the option.

Option E: optional supplementary parameters are supplementary parameters related to the reporting set update condition, such as a hysteresis parameter, a delay parameter, and the like.

The above options can be issued in one measurement control message, or separately issued in a plurality of measurement control messages; for a measurement control message, any combination of the above options may be included.

Step 102, UE receives the measurement control message, establishes a reporting set inside, and measures the cells in the monitoring set.

After the UE receives the measurement control message, the following operations are performed corresponding to each parameter option:

the UE must first receive a measurement control message containing a neighbor cell list and measurement parameters, which are parameter options, to specify the range of the cell to be measured and the measurement contents. In the later process, the RNC may also change the UE settings by re-issuing measurement control messages with the neighbor cell list and measurement parameters.

If the measurement control message containing the option A is received, the UE establishes a reporting set in the UE, and selects cells in n monitoring sets to be put into the reporting set. The n cells can be selected from the monitoring set at will; or the UE firstly measures the cells in the monitoring set according to the measurement parameters and selects n cells with the best signal quality; or, if the UE cannot support measurement on n cells or cannot establish a reporting set including n cells, the UE may establish a reporting set including less than n monitoring cells according to its own capability.

If the UE receives a measurement control message containing the manner in which the UE reports the measurement report, the UE will explicitly report the measurement report immediately upon reporting a set update, or periodically, or both.

If the UE receives the measurement control message containing the supplementary parameter option, the UE corrects the condition of reporting set update according to the parameters.

In the above-described measurement control message, the RNC can change the values of the parameter options at any time and send them through a new measurement control message, and the UE updates the settings after receiving them.

103, the UE continuously measures the cells in the monitoring set according to the measurement parameters; judging whether the measurement result meets the trigger condition of reporting set updating, if so, executing step 104; otherwise, continuing to measure the cells in the monitoring set according to the measurement parameters.

And step 104, the UE updates the reporting set and reports the measurement report to the RNC.

Here, updating the reporting set is: and adding the cells with better signal quality into the reporting set, and removing the cells with poorer signal quality from the reporting set.

If the reporting mode of the measurement report is immediate reporting when the reporting set is updated, the UE can send the measurement reports of all the cells and the removed cells in the updated reporting set to the RNC at the same time. The measurement report at least comprises the following contents: the reason for reporting the measurement report by the UE is to report a set update event, the cell number of each cell and the measurement results of this cell, such as the received signal quality.

Here, it should be noted that: the reported measurement reports include measurement reports of all cells in the reporting set.

And 105, the RNC receives the measurement report reported by the UE and executes decision switching.

Here, the RNC makes a decision whether to switch according to a received measurement report reported by the UE; if a handover is decided, the RNC also indicates to the UE which cell to handover to.

It should be noted that, in step 103, it is assumed that the UE reports the measurement report in an immediate reporting mode when the reporting set is updated. If the RNC issues the measurement message with the option of periodic reporting and the reporting period T, the UE should execute step 105a after receiving the message: and the UE sends the measurement reports of all the cells in the reporting set to the RNC at intervals of T. Thereafter, step 105 is performed.

Example 1: reporting the measurement report immediately when reporting the set update. As shown in fig. 4, in this embodiment, the information interaction between the RNC and the UE includes the following steps:

step 201, RNC sends a measurement control message to UE.

Here, the measurement control message has the following parameter items: n value, adjacent cell list, measurement parameter is RSCP value on CCPCH channel of cell, and the trigger condition for reporting measurement report is reporting when reporting set updating.

Step 202, after receiving the control message, the UE establishes a reporting set.

Here, the UE selects the current serving cell and n-1 adjacent cells with the best received signal quality to establish a reporting set.

Step 203, the UE keeps measuring the cells in the monitoring set.

Step 204, when the UE finds that the signal quality of a cell i not in the reporting set is better than the signal quality of a cell p in the reporting set, that is, the signal quality satisfies the following formula (1), the UE updates the reporting set and reports the measurement report to the RNC.

10·logM_l＞10·logM_p (1)

In the formula (1), M_lThe RSCP value on a CCPCH channel of a cell i in a certain non-reported set is represented; m_pAnd the RSCP value on the CCPCH channel of the cell p in a certain reporting set is shown.

Here, the UE updates the reporting set, that is: cell i is added to the reporting set while cell p is removed from the reporting set. And the UE sends the updated measurement report of the n cells and the cell p in the reported set to the RNC, and the method comprises the following steps: the reason for reporting the measurement report is to report a set update event, the cell number of each cell and the RSCP measurement result on the CCPCH channel of this cell.

Step 205, after receiving the measurement report reported by the UE, the RNC determines that the UE switches to the cell i.

Example 2: reporting the measurement report periodically. In this embodiment, the triggering condition for reporting the measurement report in the measurement control message sent by the RNC to the UE is periodic reporting, and the other options are the same as those in embodiment 1. As shown in fig. 5, in this embodiment, the information interaction between the RNC and the UE includes the following steps:

step 301, the RNC issues a measurement control message to the UE.

Here, the measurement control message has the following parameter items: n value, adjacent cell list, measuring parameter is RSCP value on CCPCH channel of cell, the triggering condition for reporting measuring report is periodic reporting, the period is T.

Step 302, after receiving the control message, the UE establishes a reporting set.

Step 303, the UE measures the cells of the monitoring set at intervals of time T.

And step 304, the UE reports the measurement report to the RNC at intervals of T.

Here, the measurement report includes: the cell number of each cell and the RSCP measurement on the CCPCH channel of this cell.

Step 305, when the UE finds that the signal quality of a cell i not in the reporting set is better than the signal quality of a cell p in the reporting set, that is, the UE satisfies the following formula (2), the UE updates the reporting set.

10·logM_l＞10·logM_p (2)

In the formula (2), M_lThe RSCP value on a CCPCH channel of a cell i in a certain non-reported set is represented; m_pAnd the RSCP value on the CCPCH channel of the cell p in a certain reporting set is shown.

Step 306, after updating the reporting set, the UE still reports the measurement report to the RNC with T as a period.

Step 307, after receiving the measurement report reported by the UE, the RNC determines that the UE switches to the cell i.

Example 3: reporting the condition of the measurement report immediately when the reporting set is updated, and correcting the triggering condition of the reporting set updating through a hysteresis parameter. The measurement control messages sent by the RNC in the above two embodiments do not have supplementary parameters, and this embodiment exemplifies the case of UE measurement with hysteresis parameter option and triggering reporting of measurement report, including the following steps:

step 401, the RNC issues a measurement control message to the UE with the following parameter items: n value, adjacent cell list, measurement parameter is RSCP value on CCPCH channel of cell, and the trigger condition for reporting measurement report is reporting when reporting set updating, and it has hysteresis parameter (Hyst).

Step 402, after receiving the control message, the UE selects the current service cell and n-1 neighboring cells with the best received signal quality to establish a reporting set, and keeps measuring the cells of the monitoring set; when the signal quality of a cell i not in the reporting set is higher than that of a cell p in the reporting set by a hysteresis amount, namely the following formula (3) is satisfied, the UE updates the reporting set and reports a measurement report to the RNC.

10·logM_l+Hyst＞10·logM_p (3)

In formula (3), M_lThe RSCP value on a CCPCH channel of a cell i in a certain non-reported set is represented; m_pAnd the RSCP value on the CCPCH channel of the cell p in a certain reporting set is shown.

Step 403, the RNC receives the measurement report reported by the UE, and decides to switch the UE to the cell i.

In summary, it can be seen that the steps of embodiment 3 are substantially the same as those of embodiment 1, except that the cell signal quality threshold triggering the update of the reporting set in embodiment 3 is improved, and fig. 6 depicts a schematic diagram of cell signal quality with hysteresis parameters.

Example 4: and reporting the condition of the measurement report immediately when the report set is updated, and correcting the trigger condition of the update of the report set through a time delay parameter. This embodiment describes a case where UE measurement with a delay parameter option and a measurement report reporting trigger are performed, and includes the following steps:

step 501, the RNC issues a measurement control message to the UE with the following parameter items: n value, adjacent cell list, measurement parameter is RSCP value on CCPCH channel of cell, and the trigger condition for reporting measurement report is reporting when reporting set updating, and it has Time-to-trigger parameter (Time-to-trigger).

Step 502, after receiving the control message, the UE selects the current service cell and n-1 adjacent cells with the best received signal quality to establish a reporting set, and keeps measuring the cells of the monitoring set; when the signal quality of a cell i not in the reporting set is better than that of a cell p in the reporting set, that is, the following formula (4) is satisfied and the retention Time-to-trigger is kept, the UE updates the reporting set and reports a measurement report to the RNC.

10·logM_l＞10·logM_p (4)

In the formula (4), M_lThe RSCP value on a CCPCH channel of a cell i in a certain non-reported set is represented; m_pAnd the RSCP value on the CCPCH channel of the cell p in a certain reporting set is shown.

Step 503, the RNC receives the measurement report reported by the UE, and decides to switch the UE to the cell i.

In summary, it can be seen that the steps in embodiment 4 are substantially the same as those in embodiment 1, except that the cell signal quality triggering reporting set update in embodiment 4 needs to be maintained for a period of time, and fig. 7 illustrates a schematic diagram of cell signal quality with a delay parameter.

A system for reporting set measurements and triggering measurement reporting, the system comprising: a receiving unit at the UE side, a report set establishing unit at the UE side and a measuring unit at the UE side. The receiving unit is configured to receive a measurement control parameter from a network element on a network side, and send the measurement control parameter to the reporting set establishing unit and the measuring unit. And the reporting set establishing unit is used for establishing a reporting set according to the measurement control parameters. And the measurement unit is used for measuring the cells in the monitoring set according to the measurement control parameters.

Here, the system further includes a sending unit on the network side, which includes two specific implementations, the first implementation: and the issuing unit at the network side is used for encapsulating the size of the reporting set, the adjacent cell list and the measurement parameters, as well as the optional mode of reporting the measurement report by the UE and the optional supplementary parameters, which are included in the measurement control parameters, into a measurement control message by the network element at the network side, and issuing the measurement control message to the UE. And the second method comprises the following steps: a network side issuing unit, configured to encapsulate, by a network element on the network side, the size of a reporting set, a neighboring cell list, and measurement parameters included in the measurement control parameters, and optionally a mode in which the UE reports a measurement report and optionally supplementary parameters in at least two measurement control messages, and issue the measurement control messages to the UE; each measurement control message includes the size of the reporting set in the measurement control parameter, the neighbor cell list, the measurement parameter, and any parameter combination of the optional UE reporting measurement report mode and the optional supplementary parameter.

Here, the reporting set establishing unit is further configured to select, by the UE, not less than n cells from the monitoring set to establish the reporting set according to the size of the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE. And the measurement unit is further used for measuring the cells in the monitoring set by the UE according to the adjacent cell list and the measurement parameters.

For the reporting set establishing unit, three specific implementations are included, the first implementation: and the report set establishing unit is further used for selecting n cells from the monitoring set by the UE in an optional mode. And the second method comprises the following steps: and according to the adjacent cell list and the measurement parameters, the UE selects n cells with the best signal quality from the monitoring set by a measuring and selecting mode of measuring the cells in the monitoring set. And the third is that: when the UE can not support the measurement of n cells or can not establish a reporting set containing n cells, the UE selects less than n cells from the monitoring set according to the capability of the UE.

Here, the system further includes a reporting set updating unit, configured to update the reporting set by the UE when the measurement result satisfies a triggering condition for reporting set updating. The triggering condition for reporting set update is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

Here, the system further includes: and the reporting unit of the UE side is used for reporting the measurement report to a network element of the network side when the UE meets the mode of reporting the measurement report by the UE, which is set in the measurement control parameters. The method for reporting the measurement report by the UE comprises the following steps: and updating at least one of an instant reporting mode of the UE, a periodic reporting mode of the UE and a mode of informing the UE of reporting by a network element of a network side through a command by the reporting set.

Since the UE reports measurement reports in different manners, the specific implementation of the measurement unit and the reporting unit are different, and the following two cases are illustrated by way of example.

In the first case: the method for reporting the measurement report by the UE specifically comprises the following steps: and under the condition that the reporting set updates the mode of instant reporting of the UE, the measurement unit is further used for always keeping the UE to measure the cells in the monitoring set according to the adjacent cell list and the measurement parameters. And the reporting unit is further used for updating the reporting set when the measurement result meets the triggering condition of updating the reporting set, and reporting the measurement report to a network element at the network side.

Here, the reporting unit further includes: a reporting set updating module and a measurement report reporting module. The reporting set updating module is used for adding the cells with high signal quality which are not in the reporting set into the reporting set when the UE finds the triggering condition that the signal quality of the cells which are not in the reporting set is better than the signal quality of the cells in the reporting set in the measurement, and removing the cells in the reporting set with poor signal quality from the reporting set to finish the updating of the reporting set. A measurement report reporting module, configured to report the measurement reports of all cells in the updated reporting set to a network element on the network side; or, the measurement report reporting module is configured to report the measurement reports of all cells in the reporting set after the reporting set is updated, and the measurement reports of cells removed from the reporting set to a network element on the network side.

In the second case: the method for reporting the measurement report by the UE specifically comprises the following steps: under the condition of the mode of periodical reporting by the UE, the measurement unit is further configured to measure the cells in the monitoring set at intervals of time T according to the neighboring cell list and the measurement parameters. And the reporting unit is further used for reporting the measurement report to a network element of the network side by the UE at intervals of T.

Here, the reporting unit is further configured to report the measurement reports of all the cells in the reporting set to a network element on the network side.

A user equipment applying a method of measuring and triggering a measurement report based on a reporting set, the user equipment comprising: the device comprises a receiving unit, a report set establishing unit and a measuring unit at the UE side. The receiving unit is used for the UE to receive the measurement control parameters from the network element of the network side and send the measurement control parameters to the reporting set establishing unit and the measuring unit. And the reporting set establishing unit is used for establishing a reporting set according to the measurement control parameters. And the measurement unit is used for measuring the cells in the monitoring set according to the measurement control parameters.

Here, the receiving unit includes two specific implementations, the first: a receiving unit, further configured to receive, from a network element on the network side through a measurement control message, the size of the reporting set, the neighboring cell list, and the measurement parameters included in the measurement control parameters, and optionally, a mode and optionally supplementary parameters for reporting the measurement report by the UE. And the second method comprises the following steps: a receiving unit, further configured to receive, from a network element on a network side through at least two measurement control messages, a size of a reporting set, a neighboring cell list, and measurement parameters included in the measurement control parameters, and optionally a mode and optionally supplementary parameters for reporting a measurement report by the UE; each measurement control message includes the size of the reporting set in the measurement control parameter, the neighbor cell list, the measurement parameter, and any parameter combination of the optional UE reporting measurement report mode and the optional supplementary parameter.

Here, for the reporting set establishing unit, the reporting set establishing unit includes three specific implementations, a first implementation: and the report set establishing unit is further used for selecting n cells from the monitoring set by the UE in an optional mode. And the second method comprises the following steps: and the report set establishing unit is further used for selecting n cells with the best signal quality from the monitoring set by the UE according to the adjacent cell list and the measurement parameters in a measurement and selection mode of measuring the cells in the monitoring set. And the third is that: and the reporting set establishing unit is further used for selecting less than n cells from the monitoring set according to the capability of the UE when the UE can not support the measurement of the n cells or can not establish the reporting set containing the n cells.

Here, the UE further includes a reporting set updating unit, configured to update the reporting set when the measurement result satisfies a triggering condition for reporting set updating. The triggering condition for reporting set update is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

Wherein, under the condition of the periodic reporting mode of the UE, the reporting unit is further configured to report the measurement reports of all the cells in the reporting set to a network element on the network side.

Here, for the reporting unit in the first and second cases, the reporting unit further includes: a reporting set updating module and a measurement report reporting module. The reporting set updating module is used for adding the cells with high signal quality which are not in the reporting set into the reporting set when the UE finds the triggering condition that the signal quality of the cells which are not in the reporting set is better than the signal quality of the cells in the reporting set in the measurement, and removing the cells in the reporting set with poor signal quality from the reporting set to finish the updating of the reporting set. A measurement report reporting module, configured to report the measurement reports of all cells in the updated reporting set to a network element on the network side; or reporting the measurement reports of all cells in the updated reporting set and the measurement reports of the cells removed from the reporting set to a network element at the network side.

The measurement Report events referred to above may be denoted by Report event; the measurement Report event of the best cell update may be reported event: change of best cell representation; the Measurement Control message may be represented by Measurement Control; the Cell number may be represented by Cell parameters ID.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for measuring and triggering measurement reports based on a reporting set, the method comprising:

after receiving the measurement control parameters from the network element of the network side, the user terminal (UE) establishes a reporting set and measures the cells in the monitoring set according to the measurement control parameters.

2. The method of claim 1, wherein measuring the control parameter comprises: the size of the reporting set, the neighbor cell list and the measurement parameters, and optionally the way in which the UE reports the measurement report and optionally the supplementary parameters.

3. The method of claim 2, wherein the size of the report set is sent to the UE by a network element on the network side through a measurement control message; or, the size of the reporting set is agreed in advance between the network element of the network side and the UE.

4. The method of claim 2, wherein the size of the reporting set, the neighbor cell list, and the measurement parameters, and the optional UE reporting measurement report mode and the optional supplementary parameters are encapsulated in a measurement control message and are sent to the UE by a network element on the network side;

5. The method of claim 4, wherein according to the size of the reporting set, the UE selects not less than n cells from the monitored set to establish the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE;

6. The method according to claim 5, wherein the selecting no less than n cells specifically comprises: by an optional mode, the UE randomly selects n cells from the monitoring set; or, through the measuring and selecting mode of the cell measurement in the monitoring set, the UE selects n cells with the best signal quality from the monitoring set;

7. The method of claim 1, further comprising: when the measurement result meets the trigger condition of reporting set updating, the UE updates the reporting set; the triggering condition of the update of the reporting set is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

8. The method of claim 1, wherein when the UE satisfies the UE reporting measurement report mode set in the measurement control parameter, the UE reports the measurement report to a network element on a network side; wherein the reported measurement report is as follows: and reporting the measurement reports of all the cells in the set.

9. The method of claim 8, wherein the reporting of the measurement report by the UE comprises: and updating at least one of an instant reporting mode of the UE, a periodic reporting mode of the UE and a mode of informing the UE of reporting by a network element of a network side through a command by the reporting set.

10. The method according to claim 7 or 9, wherein when the reporting mode of the measurement report by the UE is an immediate reporting mode of the reporting set update UE, the UE updates the reporting set and reports the measurement report to the network element on the network side.

11. The method of claim 7, wherein the update report set specifically comprises: and adding the cells with the excellent signal quality which are not in the reporting set into the reporting set, and removing the cells in the reporting set corresponding to the poor signal quality from the reporting set.

12. The method of claim 8, wherein the information in the measurement report comprises at least: a cell number of each cell and a measurement result corresponding to each cell.

13. The method of claim 10, wherein the measurement report is reported as: and the measurement reports of all the cells in the reporting set after the updating of the reporting set and the measurement reports of the cells removed from the reporting set.

14. The method of claim 10, wherein the information in the measurement report comprises at least: the reason for reporting the measurement report by the UE is to report a set update event.

15. The method of claim 7, wherein when the UE receives the supplemental parameters, the method further comprises: correcting the trigger condition of the update of the reporting set; wherein,

16. The method of claim 15, wherein, with the hysteresis parameter, the modified trigger condition for reporting set update specifically includes: a hysteresis parameter that the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set and better than the signal quality of cells in the reporting set;

17. The method of claim 9, wherein when the UE reports the measurement report periodically, the UE measures the cells in the monitoring set at intervals of time T according to a reporting period T corresponding to the manner in which the UE reports periodically, and reports the measurement report to the network element on the network side.

18. A system for measuring and triggering measurement reporting based on a reporting set, the system comprising: a receiving unit of the UE side, a report set establishing unit of the UE side and a measuring unit of the UE side; wherein,

19. The method of claim 18, wherein the system further comprises a sending unit on the network side, configured to package, by a network element on the network side, the size of the reporting set, the neighbor cell list, and the measurement parameters included in the measurement control parameters, and optionally a measurement report reporting mode and optional supplementary parameters of the UE, in a measurement control message, and send the measurement control message to the UE;

20. The system of claim 19, wherein the reporting set establishing unit is further configured to, according to the size of the reporting set, the UE selects no less than n cells from the monitored set to establish the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE;

21. The system of claim 20, wherein the reporting set establishing unit is further configured to, in an optional manner, select n cells from the monitoring set at will by the UE; or, through the measuring and selecting mode of measuring the cells in the monitoring set, the UE selects n cells with the best signal quality from the monitoring set;

22. The system of claim 18, further comprising a reporting set updating unit, configured to update the reporting set by the UE when the measurement result satisfies a triggering condition for reporting set updating; the triggering condition of the update of the reporting set is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

23. The system of claim 18, further comprising: a reporting unit of the UE side, configured to report the measurement report to a network element of the network side when the UE satisfies a mode of reporting the measurement report by the UE set in the measurement control parameter;

24. The system of claim 23, wherein the reporting of the measurement report by the UE is performed in a manner specifically as follows: under the condition that the reporting set updates the instant reporting mode of the UE, the measurement unit is further used for the UE to always measure the cells in the monitoring set; the reporting unit is further configured to update the reporting set when the measurement result meets a triggering condition for updating the reporting set, and report the measurement report to a network element on the network side;

25. The system of claim 24, wherein the reporting unit further comprises: a reporting set updating module and a measurement report reporting module; wherein,

26. A ue applying a reporting set based measurement and triggered measurement report method, the ue comprising: the device comprises a receiving unit, a reporting set establishing unit and a measuring unit; wherein,

27. The UE of claim 26, wherein the receiving unit is further configured to receive, from a network element on a network side through a measurement control message, the size of the reporting set, the neighbor cell list, and the measurement parameters included in the measurement control parameters, and optionally a mode and optionally supplementary parameters for the UE to report the measurement report;

28. The UE of claim 27, wherein the reporting set establishing unit is further configured to, according to the size of the reporting set, select at least n cells from a monitored set by the UE to establish the reporting set; wherein n is more than or equal to 2, and the value of n is specified by a network side or determined by the processing capacity of the UE;

29. The UE of claim 26, further comprising a reporting set updating unit, configured to update the reporting set by the UE when the measurement result meets a triggering condition for reporting set updating; the triggering condition of the update of the reporting set is as follows: the signal quality of cells not in the reporting set is better than the signal quality of cells in the reporting set.

30. The ue of claim 26, wherein the ue further comprises: a reporting unit, configured to report, when the UE satisfies a measurement report reporting mode set in the measurement control parameter, the measurement report to a network element on the network side;

31. The UE of claim 30, wherein the reporting of the measurement report by the UE specifically comprises: under the condition that the reporting set updates the instant reporting mode of the UE, the measurement unit is further used for the UE to always measure the cells in the monitoring set; the reporting unit is further configured to update the reporting set when the measurement result meets a triggering condition for updating the reporting set, and report the measurement report to a network element on the network side;