Apparatus and method of dropping logged measurement in wireless communication system. RU patent 2508610.

FIELD: radio engineering, communication.

SUBSTANCE: invention discloses user equipment in a Radio Resource Control (RRC) connected mode, which receives from a base station a Minimisation of Drive Tests (MDT) configuration and triggers an applicability timer after receiving the MDT configuration. The user equipment in RRC idle mode logs measurements based on the MDT configuration in order to collect logged measurements while the applicability timer is active. When the applicability timer expires, the user equipment drops the MDT configuration and triggers the storage timer. When the storage timer expires, logged measurements are dropped.

EFFECT: dropping logged measurements without affecting available memory.

9 cl, 11 dwg

THE TECHNICAL FIELD

The present invention relates to wireless networks, and more, to a method and apparatus for the drop recorded measurements in wireless systems.

THE LEVEL OF TECHNOLOGY

Long-term evolution (LTE) third generation partnership project (3GPP) is an improved version of the universal mobile telecommunications system (UMTS) and represented as a 3GPP release 8. 3GPP LTE uses multiple access with orthogonal frequency division (OFDMA) on the downlink, and uses multiple access with frequency division and single-carrier (SC-FDMA) in the ascending line of communication. 3GPP LTE uses multiple input and multiple output (MIMO), with up to four antennas. In recent years, there are ongoing discussions 3GPP LTE advanced (LTE-A), which is the evolution of the 3GPP LTE.

Minimization of tests when moving (MDT) is a test carried out by service providers to optimize coverage using the user equipment (UE) instead of using the car. Coverage varies depending on the location of the base station (BS), placing near the buildings of the terms of use the user and so on. This requires that service providers periodically carried out the test when you move, and many costs and resources are spent. MDT is used when the service provider measures the coverage using UE.

MDT can be classified on the recorded MDT and direct MDT. In accordance with the recorded MDT after implementation of the measure MDT, UE transmits the recorded measurement network, available during the meeting the condition of the report. In accordance with the direct MDT after implementation of the measure MDT UE passes measurement network in the moments of time when configured condition report is satisfied. Recorded MDT provides for the measurement of MDT in standby mode, the management of radio resources (RRC), but a direct MDT provides for the measurement of MDT in connected mode RRC.

The recorded measurement is the result of the recorded measurement MDT and can be considered as the data that is hardly necessary to UE. Accordingly there is a need for a method of providing the opportunity to discard the recorded measurement without action on the available memory and the quality of services, but using the previously saved recorded measurements.

DISCLOSURE OF THE INVENTION

TECHNICAL PROBLEM

The present invention provides a method and device for the drop recorded measurements in wireless systems.

One aspect of a secured way to drop recorded measurements of user equipment in wireless systems. The method includes receiving user equipment on a connected Control mode of the Radio Resources (RRC) from the base station configurations Minimize Tests when Moving (MDT) after admission configuration MDT, starting the timer applicability, record user equipment in standby mode, RRC dimensions based on the configuration MDT to collect the recorded measurement, while the timer applicability applicable when the timer applicability expires, drop configuration MDT and starting the timer conservation, and when the timer conservation expires, the drop was recorded measurements.

The value of the timer conservation can be recorded.

The value of the timer conservation can be 48 hours.

Configuration MDT may include a value for the timer applicability.

Configuration MDT may include recording interval, indicating the frequency for the storage of measurement results.

The method can additionally include a stop recording measurements and hold the recorded measurements when the timer applicability expired.

The method can optionally include the transmission of user equipment to the base station of the recording indicator, indicating the availability of the recorded measurements, while the timer conservation acts.

The method can optionally include user equipment from the base station information request to retrieve the recorded measurement and transmission of user equipment to the base station of the information the response to send the recorded measurement.

Recorded measurement may include the results of measurements of at least one serving of cell and time information.

In another aspect, provided the device drop recorded measurements in wireless systems. The device includes radio unit for transmission and reception of radio signals, and processor, promptly connected with the radio frequency unit and configured to receive from the base station configurations Minimize Tests when Moving (MDT) after admission configuration MDT, starting the timer applicability of the recorded measurements based on the configuration MDT to collect the recorded measurement, while the timer applicability applicable when the timer applicability expired, drop configuration MDR and starting the timer conservation, and when the timer conservation expires, the drop was recorded measurements.

PREFERRED EFFECTS OF THE INVENTION

Drop configurations minimize tests when moving (MDT) and measurement MDT occurs in two stages so that the custom equipment may not allow purposefully and uncertain implementation of the measure MDT in a network that does not support the MDT, and the opportunity to announce the preliminary result of the measurement can be ensured. So the consumption of battery user equipment can be reduced in the measurement of MDT and memory of a user equipment can be used more effectively.

BRIEF DESCRIPTION OF DRAWINGS

Fig. 1 shows a wireless communications system to which the present invention is applied.

Fig. 2 is a diagram showing the architecture of radio Protocol to the plane of the user.

Fig. 3 is a diagram showing the architecture of radio Protocol for the control plane.

Fig. 4 is a block diagram of the sequence of operations ways, showing the procedure for selection of cell user equipment is in standby mode.

Fig. 5 is a block diagram of the sequence of operations ways, showing the procedure for establishing connection RRC.

Fig. 6 is a block diagram of the sequence of operations ways, showing the reconfiguration procedure RRC connection.

Fig. 7 is a block diagram of the sequence of operations ways, showing the procedure for reporting information UE.

Fig. 8 shows the procedure for the implementation of the MDT.

Fig. 9 is a block diagram of the sequence of operations ways, showing the way to drop the recorded measurement in accordance with the variant of execution of the present invention.

Fig. 10 is a block diagram of the sequence of operations ways, showing the way to drop and the message of the recorded measurement in accordance with the variant of execution of the present invention.

Fig. 11 block diagram showing the wireless device for implementation of the embodiment of the present invention.

REALIZATION OF THE INVENTION

Fig. 1 shows a wireless communications system that is subject to the present invention. The wireless communication system can be considered as a developed UMTS network (E-UTRAN) terrestrial radio access or system (LTE)/LTE-A long-term development.

E-UTRAN includes at least one base station (BS) 20, which provides the control plane and the plane of the user for user equipment (UE) 10. UE 10 may be fixed or mobile, and can be considered as a different terminology, such as a mobile station (MS), user terminal (UT), subscriber unit (SS), a mobile terminal (MT), a wireless device, and so on. BS 20 is generally fixed station that communicates with the UE 10 and can be considered different terminology, such as the advanced node-B (eNB), basic digital headset system (BTS), access point, and so on.

BSs 20 are interconnected through the interface X2. BSs 20 also connected through an interface S1 to developed packet core (EPC) 30, specifically to node mobility management (MME) through the S1-MME and maintenance gateway through S1-U.

EPC 30 includes MME S-GW, and packet gateway (P-GW). MME has information access UE or information about the possibility of UE, and such information is generally used for the management of mobility UE. S-GW is the gateway with E-UTRAN as an endpoint. P-GW is the gateway with PDN as an endpoint.

Levels Protocol radio interface between the UE and the network can be classified on the first level (L1), the second level (L2), and the third level (L3), based on the lower three levels of the model of open systems interconnection (OSI), which is widely known in the communication system. Among them are the physical (PHY) level, owned by the first level provides the information transmission using physical channel, and the level of management of radio resources (RRC), the third level is designed for the management of radio resources between the UE and the network. For this level of RRC exchanges message RRC between UE and BS.

Fig. 2 is a diagram showing the architecture of radio Protocol to the plane of the user. Fig. 3 is a diagram showing the architecture of radio Protocol for the control plane. Plane user is a package Protocol for the transmission of user information. Control plane is the package Protocol for signal transmission.

Referring to Fig. 2 and 3, level PHY provides top level service information transfer through the physical channel. Level PHY is attached to the level of the medium access control (MAC), which is the top level level PHY through the link. Data is transferred between the level of the MAC and PHY level through the link. Transmission channel is classified according to how and with what characteristics the information is transmitted via a radio interface.

Between different levels PHY, for example PHY level transmitter and the level PHY receiver, the data is transmitted across the physical link. Physical channel layout can be arranged with the use of a scheme of division multiplexing (OFDM) with orthogonal frequency division multiplexing and can use the time and frequency as radio resource.

The functions of the MAC layer include the mapping between logical channel and the channel of transmission and multiplexing/demultiplexing in the transport sector, provided to physical channel via the channel service unit (SDU) MAC data belonging to logical channel. Level MAC provides a service to the level of keying (RLC) through the logical channel.

Level functions RLC include RLC SDU concatenation, segmentation, reassembly. To ensure that the difference in quality of service (QoS)required unidirectional channel (RB), the level of RLC provides three models, i.e. transparent mode (TM), unconfirmed mode (UM), and confirmed mode (AM). AM RLC corrects errors using the query automatic repetition (ARQ).

Function-level Protocol (PDCP) convergence packet data in a plane user encompass the transmission of user data and header compression, and encryption. Level functions PDCP in the plane of control include the transfer of information control plane and data encryption/data protection.

The level of management of radio resources (RRC) is determined only in the plane of control. The level of the RRC is designed to control logical channel, channel, and a physical channel, together with the configuration, reconfiguration and release unidirectional channels (RBs). RB is a logical way, secured the first level (i.e. level PHY) and a second level (i.e. level, MAC level of RLC, and the level of PDCP) to transfer data between the UE and the network.

Installing RB refers to a process for determining the level of radio Protocol and parameters of the channel in order to provide some service, and to determine the appropriate detailed settings and operations. RB can be classified into two types, i.e. signal RB (SRB) and RB data (DRB). SRB is used as a way to send a message to the RRC in the control plane. DRB is used as a way for the user data transmission in the plane of the user.

When RRC connection is established between the level of RRC UE and the level of RRC network, UE in a connected state of the RRC, and otherwise UE waiting RRC.

Data is transmitted from the network to the UE through the transport channel downlink. Examples of transport channel downlink transfer include channel broadcasting (BCH) for system information, and shared channel (SCH) descending lines of communication to transmit the user's traffic control messages. User traffic group downlink or service broadcasting or control messages can be transmitted SCH downlink or secondary channel multicast (MCH) downlink. Data is transferred from the UE in the network via a transport channel of upward communication lines. Examples of transport channel uplink connection include random access channel (RACH) for the initial transfer of the control message and SCH ascending line of communication for the transmission of user traffic or control messages.

Examples of logical channels belonging to higher channel of the transmission channel and displayed on the channel, include channel broadcasting (BCCH), channel call control (PCCH), shared control channel (CCCH), group managing channel (MCCH), group channel (MTCH) and so on.

Physical channel includes several characters OFDM in the time interval and several carriers frequencies in the frequency interval. One includes many OFDM symbols in the time interval. The resource block is a unit of resource allocation and includes many characters OFDM and many carriers frequencies. Additionally, each can use certain supporting the frequency of certain characters OFDM (for example, the first character of OFDM) of the relevant for physical control channel downlink (PDCCH), that is, L1/L2 control channel. The time interval transmission (TTI) is a unit of transmission time .

Next, the state of the RRC UE and coupling mechanism RRC will be described.

The state of the RRC indicates attached whether logically level RRC UE to the level of the RRC E-UTRAN. If two levels connected to each other, it is called the connected state of the RRC, and if two levels are not connected to each other, it is called a state of expectation RRC. When in a connected state of RRC UE has a connection RRC and thus E-UTRAN can detect the presence of UE in the unit cell. Accordingly UE can be effectively managed. On the other hand, when waiting RRC UE cannot be recognized by the E-UTRAN and is managed by the core network in a unit square tracking wider area than a cell. That is what concerns UE waiting RRC, only the presence or absence of UE is recognized in the unit of the wide area. To get the service of a typical mobile communications, such as voice or data, the transition to the connected state of the RRC is required.

When the user initially includes power UE, UE first looks for the appropriate cell and subsequently remains pending RRC in the cell. Only when there is a need to establish a connection RRC, UE, remaining pending RRC, establishes a connection RRC c E-UTRAN through the connection procedure RRC and then switches to the connected state of the RRC. Examples of cases in which the UE waiting RRC to connect to the RRC, different, for example, the case in which the transfer of data in the ascending line is necessary because attempts phone user or the like, or a case in which the response message is passed in response to calling a message taken from the E-UTRAN.

Level layer without access (NAS) is a top-level level RRC and is used to implement session management, mobility management, or similar.

To manage the mobility of UE in the level of NAS two States defined, i.e. the condition of a registered mobility management EPS (EMM - registered) and EMM-unregistered status. These two conditions apply to UE and MME. Originally UE in the EMM-unregistered status. To access the network UE is in the process of registration to the network through the procedure of initial connection. If the accession process successfully implemented, UE, and MME are EMM-registered status.

To control the signal connection between the UE and the EPC, two States defined, i.e. the state of expectations management (ECM) connection EPS and ECM-the connected state. These two conditions apply to UE and MME. When UE waiting ECM establishes a connection with RRC E-UTRAN, UE included in the ECM-the connected state. When MME waiting ECM establishes a connection S1 with E-UTRAN, MME included in the ECM-the connected state. When UE waiting ECM, E-UTRAN has no contextual information UE. Therefore UE waiting ECM operates on the basis of the UE procedure related to mobility, such as how to select a cell or reselect without reception of commands of the network. On the other hand, when the UE in ECM-connected condition, mobility UE managed by a team of network. If the location of the UE waiting ECM is different from the location of known online, UE reports the location of the UE in the network through the upgrade procedure square tracking.

The following system information will be described.

System information includes the necessary information, which should be known UE to get access to BS. Thus, UE shall take all the system information before accessing the BS. Additionally UE should always have an operational system information. Because the system information is information that everyone should be aware UEs in the same cell, BS periodically sends system information.

In accordance with section 5.2.2 3GPP TS 36.331 V8.4.0 (2008-12) «Management of Radio Resources (RRC); Protocol Specification (Release 8)»system information is classified on the main unit of information (MIB), the specified block (SB), the system information (SIB). MIB allows UE know the physical configuration (e.g., bandwidth) specific cell. SB reports information transmission (for example during the transfer or the like) SIBs. SIB is a group of many parts of the system information related to each other. For example SIB includes only information about the cell, and the other SIB includes only information about the radio channel ascending line of communication used UE.

In General, the service provided by the network to the UE, can be classified into three types, which will be described below. Additionally, in accordance with which the service can be provided, UE recognizes the type of cell in a different way. Type of service will first describe below, and then type the cell will be described.

1) Limited service: This service provides emergency and system (ETWS) alarm on the earthquake and tsunami, and can be secured in an appropriate cell.

2) Normal service: This service specifies the service's public areas for General use and may be provided in a suitable or normal cell.

3) Service operator: This service specifies a service for your network service provider, and the cell can only be used by your network service provider and cannot be used by a normal user.

The type of service provided by a cell can be classified as follows.

1) Acceptable cell: The cell serves UE limited service. This cell is not preclude future UE, and meets the criteria of the selection of the cell UE.

2) cell: The cell serves UE with a regular service. This cell satisfies the condition acceptable cells, and also meet the additional conditions. With regard to the additional terms, this cell should belong to the PLMN to which the UE can access and update procedure square tracking UE should not stop at this location. If the cell is a cell of the CSG, this cell should be accessible to the UE as a participant of the CSG.

3) Closed cell: Information indicating that the cell is a closed cell, is covered in this cell using the system information.

Among the cells, the signal strength or quality are measured from the BS greater than a certain value, UE selects the cell that has the highest value (stage S420). Then UE takes the system information is periodically sent BS. A certain value is the value defined in the system, to guarantee the quality of the physical signal transmitting/receiving data. Accordingly, the value may vary depending on RAT in use.

If you want to register the network UE to register their information (e.g. IMSI) to receive services, such as paging) from the network (stages S430 and S440). Network registration is not carried out when the UE selects the cell. For example, network registration is carried out when the system information (for example, a zone ID tracking (TAI)network for registration differs from the network information known UE.

If the signal power and quality, as measured from the BS that provides service to UE, is less than the value measured from the BS in the neighbouring cell, UE chooses one of the other cells, ensuring best property signal than the cell BS, which currently has access UE (phase S450). This process is considered as a re-select the cell to differentiate it from the initial selection of the cell stage S420. In this case, selecting the cell may often be in accordance with the changes in the property of the signal, and to avoid this may be given a temporary limitation.

The following procedure to select a cell, UE will be described in detail.

If UE included or is located in a cell, UE may carry out procedures for selecting/re-select the cell, which has a suitable quality to accept service.

UE waiting RRC must select a cell that has a suitable quality at all times, and thus be ready to accept service through the cell. For example, UE, which was only included should select a cell that has a suitable quality to be registered in a network. If the UE, which is in a connected state of the RRC to wait RRC, UE should select the cell where UE itself is located. Thus the process of selecting cells, which satisfies some condition UE to stay in the pending service, such as a state of anticipation RRC is called the selection of the cell. Select the cell is in a state where UE does not currently specify the cell in which the UE is located in standby RRC, and thus it is important to choose the cell as soon as possible. Therefore, if the cell ensures the quality of the radio signal is better than or equal to a specified level, the cell may be chosen in the process of selecting the cell UE even if the cell is the nucleus, providing the best quality of the radio signal.

Next, referring to the 3GPP TS 36.304 V8.3.0 (2008-09) «Procedure of user equipment (UE) standby (Release 8)», the method and procedure to select a cell, UE will be described in detail.

If the power is initially enabled, UE searches for available PLMNs and selects a suitable PLMN to accept service. Subsequently UE selects the cell that has the quality of the signal and property, capable to accept a suitable service among cells, secured selected PLMN.

The process of selecting cells can be classified into two processes.

One process is the initial process of selecting cells and in this process UE has no previous information in radio channels. Therefore UE looking for all radio channels to find the right cell. In each channel UE looking for the strongest cell. Subsequently, if the cell, satisfying the selection criteria of the cell is found, UE selects the cell.

The other process is the process of selecting the cell with the use of stored information, and in this process UE uses the information in the radio channel that is stored in the UE or selects the cell with the use of information that is streamed from a cell. Accordingly, the cell can be quickly selected and compared with the initial process of cell selection. If the cell is satisfying the selection criteria of the cell is found, UE selects the cell. If the cell is satisfying the selection criteria of the cell, not found, UE performs the initial selection process of the cell.

Selection criteria cells used UE in the process of selecting the cell can be represented by the Equation 1 as shown:

1

[.1]

where Srxlev=Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)-Pcompensation.

Qrxlevmeas specifies the accepted level measured cells (that is adopted by the power of the underlying signal (RSRP)), Qrxlevmin specifies the minimum accepted level (dMm) in the cell, Qrxlevminoffset specifies the offset to Qrxlevmin, Pcompensation is max (PEMAX-PUMAX, 0) (dB), PEMAX specifies the maximum transmit power level (dBm), valid for UE in the cell, and PUMAX specifies the maximum transmit power level (dBm) for a unit of radio frequency (RF) transmission UE and based on the performance of the UE.

In the above Inequality 1, shows that UE selects the cell that has a signal strength and quality are greater than a certain value specified in the cell, providing the service. Additionally, the parameters used in the above Inequality 1 using the system information, and UE accepts the parameter value to use for the criterion cell selection.

If UE selects the cell, which satisfies the selection criteria of the cell, UE takes the information required for the operation standby RRC UE in the appropriate cell of the system information of the corresponding cell. UE takes all the information required for the operation standby RRC, and then wait in standby mode to request a service (for example, an outgoing call) to a network or to accept service (for example, incoming call) from the network.

After UE selects a cell through the process of selecting cells, the signal strength and quality between UE and BS may be changed due to changes in mobility UE and the wireless environment. So if the quality of the selected cell is deteriorating, UE can select another cell, providing the best quality. If the cell is reselected thus, a cell that provides the best signal quality than the one that is currently selected, selected usual. This process is called re-selection of the cell. The main object of the process for re-select the cell is usually the choice of a cell, providing the best quality UE in terms of the quality of the radio signal.

In addition to the point of view of the quality of the radio signal, the network may notify UE a specific priority for each frequency. UE, which takes priority, may consider this a priority in the first place than the criteria of the quality of radio signal within the process for re-cell selection.

As described above, there is a way to select or re-select the cell, based on the property of the signal of the wireless environment. When a cell is selected for re-selection in the process of re

select a cell, there may be ways of re-select the cell as described above, based on the RAT and frequency characteristics of the cell.

- Selecting cell: re-selected cell is a cell that has the same center frequency and the same RAT as those used in the cell in which the UE is currently located.

- Selecting cell: re-selected cell is a cell that has the same RAT and other Central frequency in relation to those used in the cell in which the UE is currently located.

- Repeat the choice of inter-RAT cells: re-selected cell is a cell that uses another RAT unlike RAT used in the cell in which the UE is currently located.

Principles of process re-select a cell consist of the following.

First, UE measures the quality of service of the cell and the next cell to re-cell selection.

Second, re-cell-selection is carried out on the basis of the criterion of re-cell selection. Criterion re-select the cell has the following characteristics in respect of measuring serving cells and neighboring cells.

Reselect cell based mostly on the arrangement. Arrangement of the operation to determine the values of the criteria for the evaluation of re-cell selection and ordering of the cells in accordance with the magnitude of the values of the criterion using the values of the criterion. The cell, which has the highest criterion is considered as the most high cell. The value of the criterion cell is the value to which the frequency offset or offset the cell may apply based on the value of the measured UE to the corresponding cell.

Reselect cell is based on the priority of frequencies provided by the network. UE is trying to be on the frequency with highest priority. The network may provide the same priority frequency that is usually applied to UEs in the cell using the broadcasting of signaling can to ensure the priority of special frequency to each UE using the selected alarm for each UE.

To re-select cell, the network may provide parameters (for example, the displacement of a special frequency) for use in re-selecting cells to UE for each frequency.

To re-select cell or re-select of the cell network and can provide a list of adjacent cell (NCL) for use the next time you select a cell to the UE. NCL includes the settings of the special cells (for example, the offset of the special cells)used in the re-selecting cells.

To re-select or cell network can provide UE black list, a list of cells that do not have a re-selecting cells. UE not perform a second cell selection of cells, included in the black list.

Now, arrangement used in the evaluation process re-select the cell that will be described.

Criterion of arrangement used to classify a priority to a cell is defined by the Equality 2, as shown:

2

[.2]

where Rs specifies the value of arrangement service of the cell, Rn criterion of arrangement of the adjacent cell, Qmeas,s indicates the importance of quality, measured for a service cell UE, Qmeas,n indicates the importance of quality, measured for the next cell UE, Qhyst specifies the value of hysteresis for the arrangement, and Qoffset specifies the offset between the two cells.

The next time you select cell, if the UE adopts offset Qoffsets,n between serving the cell and nearby cell, Qffoset=Qoffsets,n. Otherwise, Qffoset=0.

If the criterion of Rs placement service cell and criterion Rn arrangement neighboring cell is not very different from each other and are constantly changing, the orders placement service cell and the next cell can change frequently. Thus, serving the cell and the adjacent cell may be re-selected alternately while their orders placement too often changed. To prevent re-choice UE alternately two cells, the hysteresis Qhyst is used to give hysteresis in selecting the cell.

UE measures criterion Rs placement service cell and criterion Rn arrangement of the next cell in accordance with the above equality. The cell with the highest value of the criterion of arrangement is reselected, given that the cell is the best.

In the above-mentioned criteria, re-select the cell, the quality of the cells seen as the most important factor in the implementation of re-cell selection. If re-selected cell is appropriate cell, UE excludes re-selected cell or frequency of re-selected cell of the goals of the re-cell selection.

Fig. 5 is a block diagram of the sequence of operations ways, showing the procedure for establishing connection RRC.

UE sends a network message requesting a connection RRC for a connection request RRC (phase S510). Network sends a message to the connection settings of the RRC in response to a request with the connection RRC (phase S520). After receiving the message, the connection settings of the RRC UE is in the connected mode RRC.

UE sends network installation complete message connection RRC used to confirm a successful completion of the installation of the connection RRC (phase S530).

Re-establishing the connection RRC like is how to establish a connection RRC. The connection-oriented RRC is to re-establish the connection RRC, which contains the recovery SRB1, re-activating the security and the configuration of the master cell. UE sends a network message asking you to re-establish a connection RRC to establish a connection request RRC. Network sends a message establish a connection RRC in response to connection requests RRC. UE sends in a network full message is reconnected, the RRC as a response to the re-establishment of a connection RRC.

Fig. 6 is a block diagram of the sequence of operations ways, showing the procedure for reconfiguring the RRC connection. Reconfiguration of RRC connection is used to change the connection RRC. This is used to set/change/release RB, to manage the handover to set/change/release measurements, and add/edit/release secondary cells.

Network sends to the UE message reconfiguration of the RRC connection to edit the connection RRC (phase S610). In response to the reconfiguration of connection RRC UE sends in a network full message reconfiguration of the RRC connection used to confirm the successful completion of the reconfiguration of the RRC connection (phase S620).

Fig. 7 is a block diagram of the sequence of operations ways, showing the procedure for reporting information UE.

Network sends to the UE request message information UE for information UE (phase S710). Request message information UE includes a box to specify whether the UE disclose information in the process of random access and/or failure of radio communications. Request message information UE includes a box to specify whether the UE inform the recorded measurement.

UE sends a network message to a request for information UE, which includes the information requested request for information UE (phase S720).

Now, minimization of tests when moving (MDT) will be described.

MDT is a test carried out by service providers to optimize coverage using UE instead of using the car. Coverage varies depending on the location of BS, placing near the buildings of the terms of use the user and so on. Therefore the need for service providers to periodically conduct tests when moving, high costs and resources are spent. MDT is used when a service provider measures the coverage using UE.

MDT can be classified on the recorded MDT and direct MDT. In accordance with the recorded MDT, after implementation of the measure MDT, UE transmits the recorded measurement network, available during the satisfaction of the condition statements.

In accordance with the direct MDT after implementation of the measure MDT UE passes measurement network in the moments of time when configured condition statements satisfied. Recorded MDT provide measurements of MDT in standby mode, RRC, but direct MDT provide measurements of the MDT in the connected mode RRC.

Fig. 8 shows the procedure for the implementation of the MDT.

MDT includes a configuration 810 MDT, measuring 820 MDT, and report 830 MDT, which are carried out in this order.

Configuration MDT can be transmitted from the network to the UE through a recorded message that the configuration of measurement, which is a message RRC. UE can take MDT in connected mode RRC. Even if UE goes to standby mode RRC, configuration MDT held, and thus the measurement result MDT is held.

Configuration MDT may include at least one recording interval, the time, the configuration of the square. Recording interval specifies how often to store the measurement results. The time frame used UE to respond to requests from the links in the report of the recorded measurement. Configuration square specifies the size for which the UE is requested to write.

UE provides for the measurement of MDT based on the configuration of the MDT. For example, the measurement of MDT is carried out every recording interval.

Measurement value can be a value, well-known experts in a given field of technology, such as receiving power base signal (RSRP), adopted by the quality of basic signal (RSRQ), the code received signal strength (RSCP), and Ec/No.

UE sends in the network of the recorded measurement in connected mode RRC. Recorded MDT UE writes measurement in standby mode, the RRC. Then after re-entry into the connected mode RRC, UE sends the recorded measurement network.

The recorded measurement may include, at least, one of the results of measurement of dimensions available in serving the cell, the results of measuring the dimensions available in the adjacent cell, time information, information about the location.

For the report MDT procedure report information UE in Fig. 7 may be used. Network sends to the UE request for information, which includes a field that indicates the report of the recorded measurement. UE sends network response with information, which includes the recorded measurement.

The recorded measurement is the result of measuring MDT and can be considered as the data that are not a necessity for UE. When serving the cell does not support MDT or the network is congested, UE holds the recorded measurement in memory for a long period of time. The recorded measurement can act on the management of the memory UE.

Fig. 9 is a block diagram of the sequence of operations ways, showing the way to drop recorded measurements in accordance with the variant of execution of the present invention.

UE takes MDT from the network (step S910). UE in the connected mode, RRC, in which connection the RRC is set to the back-end cell. Configuration MDT may include at least one recording interval, the time and the configuration of the square.

After reception of configuration MDT UE starts a timer applicability (stage S920). Timer applicability specifies the lifetime of the configuration MDT. The value of the timer applicability may be included in the configuration of the MDT. It is treated as the duration of the recording. When UE takes MDT UE sets the value of the timer on the applicability to the length of the recording, and starts a timer application.

UE goes to standby mode RRC and writes measurement-based configuration MDT while the timer applicability of works (phase S930).

On timer expiry applicability UE discards MDT and starts a timer conservation (phase S940). UE removes MDT and stops measuring the MDT. However, the recorded measurement is held. Timer conservation indicates the duration of the recorded measurement.

On timer expiry conservation occurs drop recorded measurement (step S950). When a request for a report on the recorded measurement is taken from BS while the timer conservation acts, UE may report the recorded measurement.

Timer conservation can have a fixed value. For example, the value of the timer conservation can be 48 hours. Alternatively, the value of the timer conservation can be included in MDT and can communicate BS to UE.

After accepting the new configuration MDT previous configuration MDT upgraded to the new configuration MDT and timer applicability restarts. In addition occurs drop recorded measurement MDT in accordance with the previous configuration specific MDT.

After discarding configuration MDT recorded measurement is held until the moment when the timer conservation expires. Drop configuration MDT and recorded measurements sequentially in two stages. By dropping the configuration MDT battery consumption caused by the measurement of the MDT is reduced. The recorded measurement may occur after stopping the measurement MDT so that the network can provide the opportunity of reception of the recorded measurement.

Fig. 10 is a block diagram of the sequence of operations ways, showing the way and drop messages recorded measurement in accordance with the variant of execution of the present invention.

UE takes MDT from the network (step S1010). UE in the connected mode, RRC, in which connection the RRC is set to the back-end cell.

After reception of configuration MDT UE starts a timer applicability (stage S1020).

UE goes to standby mode RRC and writes measurement-based configuration MDT while the timer applicability of works (phase S1030).

On timer expiry applicability happens drop configuration MDT and starts a timer conservation (phase S1040). UE removes MDT and no longer provides for the measurement of MDT. Although described here, that the timer applicability expires in standby mode, RRC, there is no limit to the time of expiration of the timer applicability.

When UE goes from standby RRC to the connected mode RRC UE sends the record pointer in the network (step S1055). Recording indicator can be 1-bit indicator that indicates the availability of the recorded measurement. UE provides for the measurement of MDT in standby mode, and reports to the network whether the recorded measurement during log in connected mode.

UE can send the record indicator in the network, when the RRC connection is established, or when a connection RRC re-installed, or when a connection RRC . For example, when the connection establishment procedure RRC figure 5 is carried out, recording indicator can be included in a complete message the connection settings of the RRC. When the procedure is reconnected, the RRC 6 is, recording indicator can be activated and the full message is reconnected, the RRC.

When the network knows that there is a recorded measurement based on the record, the network sends to the UE request for information request for the report of the recorded measurement (step S1060). UE sends a request to the network information, including the recorded measurement (step S1070).

On timer expiry save automatically drop the recorded measurement (step S1080).

Fig. 11 is a block diagram of the sequence of operations ways, showing the wireless device for implementation of the embodiment of the present invention. This device performs the operation UE described in the above-mentioned versions of the Fig. 9 and Fig. 10.

Device 50 includes processor 51, memory 52, radio frequency (RF) block 53. Processor 51 carries out the proposed functions, processes, and/or methods. Processor 51 passes between the connected mode RRC and standby RRC, and measures recorded MDT on the basis of the configuration of the MDT. Memory 52 connected with the processor 51, and stores the configuration of MDT and the recorded measurement. Above-mentioned variants of execution in Fig. 0 Fig. 10 can be processor 51 and memory 52.

Block 53 RF connected to the processor 51 and transmits and receives radio signals.

The processor can include integrated circuit (ASIC) to the specific application, another chip, logical scheme and/or information-processing devices. Memory can include permanent memory (ROM)memory device random access (RAM)flash memory, memory card, data carrier and/or other storage device. Block RF may include a scheme of direct transmission to handle RF signals. When execution options are implemented in software, technology described here, can be carried out with the modules (for example, procedures, functions, and so on), which carry out the functions described here. Modules can be stored in memory and executed by the processor. Memory can be implemented in the processor or outside the processor, in which case it can communicative connect to the processor through a variety of means, as we know from the field of technology.

Taking into account the approximate systems described here, a methodology which can be carried out in accordance with the entity disclosed, were revealed with reference to some block diagrams. For simplicity, the methodology shown and described as a series of stages or blocks, it is clear and it is estimated that the proposed entity is not limited to the order of stages and blocs, as some steps can be implemented in different orders or simultaneously with other steps of what is depicted and described here. Moreover person skilled in the art will understand that the steps shown in the block diagram are not exclusive and other steps may be included or one or more of the steps in the example flowchart can be removed without affecting the volume and nature of this disclosure.

1. Way drop recorded measurements of user equipment in wireless systems, and the method comprises: reception user equipment on a connected Control mode of the Radio Resources (RRC) from the base station configurations Minimize Tests when Moving (MDT); after receiving configuration MDT starting the timer applicability; write custom equipment in standby mode RRC-based measurements configuration MDT to collect the recorded measurement, while the timer applicability acts; when the timer applicability expires, drop configuration MDT and starting the timer conservation; and when the timer conservation expires, the drop was recorded measurements.

2. The method according to claim 1, wherein the value of the timer save recorded.

3. The method of claim 2, wherein the value of the timer conservation 48 hours

4. The method according to claim 1, wherein configuration MDT includes a value for the timer applicability.

5. The method according to claim 4, which configuration MDT includes recording interval, indicating the frequency for the storage of measurement results.

6. The method according to claim 1, further comprising: stop recording measurements and hold the recorded measurements when the timer applicability expired.

7. The method according to claim 1, further comprising: the transfer of user equipment to the base station record pointer, indicating the availability of the recorded measurements, while the timer conservation acts.

9. The method according to item 8, in which the recorded measurements include the results of measurements of at least one serving of cell and time information.

10. The device drop recorded measurements in the system wireless device containing: radio unit for transmission and reception of radio signals; and processor, promptly connected to the RF unit and configured to receive from the base station configurations Minimize Tests when Moving (MDT); after receiving configuration MDT starting the timer applicability; recording of measurements on the basis of configuration MDT to collect the recorded measurement, while the timer applicability acts; when the timer applicability expires, drop configuration MDT and start the timer conservation; and when the timer conservation expires, drop recorded measurements.

11. The device according to paragraph 10, in which the value of the timer save recorded.

12. The device according to claim 11, wherein the value of the timer conservation 48 hours

13. The device according to paragraph 10, in which the configuration MDT includes a value for the timer applicability.

14. The device according to paragraph 10, in which the processor is configured for: stop recording measurements and retain recorded measurements when the timer applicability expires.

15. The device according to paragraph 10, in which the processor is configured for: transfer to the base station record pointer, indicating the availability of the recorded measurements, while the timer conservation acts.