WO2009056028A1

WO2009056028A1 - Methods, devices, and systems of providing measurement information and detecting coverage problem

Info

Publication number: WO2009056028A1
Application number: PCT/CN2008/072757
Authority: WO
Inventors: Michael Roberts; Mingjiang Xie
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-10-22
Filing date: 2008-10-20
Publication date: 2009-05-07
Also published as: CN101420711A

Abstract

Methods of providing measurement information and detecting coverage problem according to the measurement information in the field of wireless communication. The method of detecting coverage problem according to measurement information includes: the network sets up measurement configuration of terminal; the measurement information is record and saved when the terminal is in a special state; the measurement information is sent to network by the terminal, the network receives the measurement information and detects coverage problem according to the measurement information. When a terminal measures cell signal at usual time, if the terminal is found in a special state such as out of coverage or cell reelecting or out of coverage when service is initiated in idle state or etc, the current scene is measurement, and the measurement information is transmitted to the network, the network analyzes and filters the measurement information after receiving it. So that the cell coverage problem could be found exactly and timely, and it is helpful for the operator to decide whether to re-plan cell or not in order to adopt suitable steps to avoid more loss.

Description

The present invention claims to be submitted to the China Intellectual Property Office on October 22, 2007, and the application number is 200710124065. 7. The invention name is "providing measurement information, detecting coverage problems, The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference. Technical field

Embodiments of the present invention relate to the field of wireless communications, and in particular, to a technique for providing measurement information and a technique for detecting a coverage problem according to measurement information. Background technique

In wireless networks such as GSM, UMTS, and future LTE (Long Term Evolved), network coverage is one of the most concerned issues for operators. It is necessary to ensure that the network achieves sufficient network coverage, mainly to establish enough base stations and allocate sufficient wired and wireless resources, and to consider the resource overhead of network deployment, mainly to establish base stations and less resources, such as reducing The operator's lease of the E1 line is a contradiction problem faced by operators.

Since there are frequent changes in the number of users, such as the establishment of new residential buildings, and some are difficult to predict, it is necessary to constantly adjust the configuration of network resources, such as: Establishing new cells in certain hotspots, in certain users Reducing the area reduces the occupation of some resources accordingly. Therefore, for operators, how to accurately and timely find coverage problems, as well as systems and efficient coverage of coverage issues is a problem that needs to be taken seriously.

The NGMN (Next Generation Mobile Network) organization has set up a technical group for LTE, mainly for the use of SON (Self Organization Network) for many use cases to indicate some demand scenarios that operators care about. The questions and requirements raised are as follows:

1. When the network is first built, the coverage vulnerability may exist between newly built cells. The road test and tool-based network planning may ignore some places; 2, new or renovated buildings may bring the need to establish a new community;

3, Newly built or renovated buildings may have a shadow effect and create coverage holes in the community.

In view of the possible vulnerabilities in coverage, how to find out in time to avoid a greater negative impact on operators is a topic that needs attention. At present, after the user complains that the call is dropped, or the network detects that the call drop rate near the cell is high, the dedicated road test instrument goes to the area to detect and confirm whether it is a coverage problem.

In carrying out the process of the present invention, the inventors have found that the prior art has at least the following problems:

It is more expensive to use the road test method to detect the coverage problem. When the road test is performed, the call drop phenomenon is already serious, and it has already had a great impact on the user. Further, not all places are suitable for the road test method. Therefore, the way of road test is limited by certain geographical areas. Summary of the invention

The embodiment of the invention provides a method, a device and a system for providing measurement information, so as to facilitate the network to timely and accurately find the coverage problem according to the measurement information.

The embodiment of the invention further provides a method, a device and a system for detecting a coverage problem, which can timely and accurately detect the problem of coverage.

To solve the above technical problem, an embodiment of the present invention provides a method for providing measurement information, including:

Record and save measurement information when entering a special state;

Send the measurement information.

In order to solve the above technical problem, an embodiment of the present invention provides an apparatus for providing measurement information, including:

a recording unit, configured to record and save measurement information when the terminal enters a special state; and a sending unit, configured to send the measurement information. To solve the above technical problem, an embodiment of the present invention provides a method for detecting a coverage problem, which includes the following steps:

Receiving measurement information recorded and saved by the terminal in a special state;

The coverage problem is detected based on the measurement information.

To solve the above technical problem, an embodiment of the present invention provides a method for detecting a coverage problem, which includes the following steps:

Recording information of the terminal entering a special state in an active state;

The coverage problem is detected based on the information.

In order to solve the above technical problem, an embodiment of the present invention provides a device for detecting a coverage problem, including:

a recording unit, configured to record information of the terminal entering the special state in the activated state; and a detecting unit, configured to detect the coverage problem according to the foregoing information.

The terminal records and saves the measurement information when entering the special state, and sends the measurement information to the network;

After receiving the measurement information, the network detects the coverage problem based on the measurement information.

To solve the above technical problem, an embodiment of the present invention provides a system for detecting and detecting an overlay problem, including:

a terminal, configured to record and save measurement information when entering a special state, and send the measurement information to a network;

The network is configured to receive measurement information sent by the terminal, and detect the coverage problem according to the measurement information.

Compared with the prior art, the main difference and the effect of the embodiment of the present invention are as follows: When the terminal performs the measurement of the cell signal in the usual time, if it finds that it enters a special state, it loses coverage, reselects the cell, or initiates service discovery in the idle state. Loss of coverage, etc., that is, measuring the scene at that time, and transmitting the measurement information to the network. After receiving the measurement information, the network analyzes and filters, and can accurately and timely discover the coverage problem of the cell, thereby helping The operator decides whether to re-plan the community to take appropriate measures to avoid greater losses. In addition, in the active state, the network and the terminal are interactive, and the network can also record the current scene by recording the location of the terminal, that is, when the terminal enters a special state, that is, in the activated state, the coverage is lost or the cell is reselected, and the network records the current scene. After the information is analyzed and filtered, the coverage problem of the cell can be found accurately and timely, which helps the operator to decide whether to re-plan the cell to take appropriate measures to avoid greater losses. DRAWINGS

1 is a schematic flow chart of a first embodiment of a method for detecting a coverage problem according to the present invention; FIG. 2 is a schematic flow chart of a third embodiment of a method for detecting a coverage problem according to the present invention; 4 is a schematic flow chart of a method for detecting a coverage problem according to a seventh embodiment of the present invention; FIG. 5 is a schematic flow chart of a method for detecting a coverage problem according to a ninth embodiment of the present invention; FIG. 7 is a schematic structural view of a first embodiment of a system for detecting a coverage problem according to the present invention; and FIG. 8 is a schematic structural view of a second embodiment of a system for detecting a coverage problem according to the present invention. detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , a flow of a first embodiment of a method for detecting a coverage problem of the present invention is a solution for a terminal (User Equipment, UE) to participate in providing measurement information, including the following steps:

Step 101: The network performs measurement configuration on the terminal.

Step 102: Record and save measurement information when entering a special state;

Step 103: The terminal sends the measurement information to the network.

Step 104: After receiving the measurement information, the network detects the coverage problem according to the measurement information. In step 103, the specific sending time may be at least one of the following: sending the measurement information when establishing a connection with the network after entering the special state and entering an active state from an idle state;

Sending the measurement information when the call is normally initiated next time;

Transmitting the measurement information when a connection is established with the network or a normal call with the network after a certain time has elapsed;

The measurement information is transmitted after accumulating certain measurement data.

The foregoing measurement information is at least one of the following: the downlink signal strength or quality of the cell or the neighboring cell; the identification of the cell or the neighboring cell; the downlink frequency range of the cell or the neighboring cell; the location of the terminal Information; Frequent Measurements or Discontinuous Reception (DRX); Time to enter a special state; Duration in a special state.

The special state may be that the cell loses coverage; or reselects the cell; or initiates a service in an idle state and finds that the coverage is lost.

If the specific behavior of the cell that is out of coverage is that the terminal goes out of the first cell and loses the coverage, the time of entering the special state is the time when the terminal leaves the first cell and loses coverage; the duration in the special state is the terminal. From the time when the first cell loses coverage to return to the coverage of the first cell or camps on other cells.

The reselected cell may be classified into a state in which the terminal reselects the cell in the idle state and a state in which the terminal reselects the cell in the activated state. The time for entering the special state is the time when the coverage of the first cell is lost, and the duration of the special state is from the coverage of the lost first cell to the resident. The duration in which the second cell returns to the first cell; or from the loss of coverage of the first cell to the duration of camping on the second cell and back to the third cell. The time for entering the special state is the time when the coverage of the first cell is lost, and the duration of the special state is the switch to the second cell. The duration of the cell back to the first cell; or the duration from the loss of the coverage of the first cell to the handover of the second cell to the third cell.

The first cell and the second cell have different or the same RAT (Radio Cell of Access Technology, Radio Access Technology; the first cell and the third cell are cells having the same or different RATs.

The special state is a state in which the service is initiated in the idle state and the coverage is lost. The measured information that is recorded and saved is at least one of the following: the downlink signal strength or quality of the cell or the neighboring cell; The identifier of the neighboring cell; the downlink frequency range of the cell or the neighboring cell; the time when the originating service discovery loses the coverage; the time from the time when the originating service discovers the lost coverage to the duration of the camped cell; the location information of the terminal; Frequent measurement or discontinuous reception parameters.

When the terminal performs the measurement of the cell signal in normal times, if it finds that it enters a special state, that is, it loses coverage, reselects the cell, or initiates service discovery in the idle state, the coverage is lost, etc., that is, the current scene is measured, and the measurement information is transmitted. To the network, after the network receives the measurement information and analyzes and filters it, it can accurately and timely discover the coverage problem of the cell, which helps the operator to decide whether to re-plan the cell to take appropriate measures to avoid greater losses.

The second embodiment of the method for detecting a coverage problem in the present invention is that, in an active state, the terminal does not need to provide measurement information, and the network records the location of the terminal. The method includes the following steps:

Step 201: Record information that the terminal enters the special state in the active state; Step 202, detect the coverage problem according to the foregoing information.

The information is at least one of the following: the downlink signal strength or quality of the cell or the neighboring cell; or the identity of the cell or the neighboring cell; or the downlink frequency range of the cell or the neighboring cell; or the location information of the terminal; Or the frequency of measurements or discontinuous reception parameters; or the time to enter a special state; or the duration in a particular state.

The special state is that the cell coverage is lost in the active state, or the cell is reselected. If the specific line that loses the coverage of the cell is the behavior that the terminal leaves the first cell and loses the coverage, the time of entering the special state is the time when the terminal leaves the first cell and loses the coverage; the duration of the special state is that the terminal goes out of the first time. The cell loses coverage to the time of returning to the coverage of the first cell or camping on other cells. The specific behavior of the reselected cell is the state in which the terminal reselects the cell in the activated state, and the special access The status time is the time when the coverage of the first cell is lost; the duration in the special state is the duration of the handover to the first cell after the coverage of the first cell is lost to the second cell; or the loss of the first cell The coverage is the duration until the second cell is switched and then switched to the third cell. The first cell and the second cell are cells having different or the same RAT; the first cell and the third cell have cells of the same or different RATs.

In the active state, the network and the terminal are interactive. The network can also record the location of the terminal, and the terminal enters a special state, that is, the coverage is lost or the cell is reselected in the active state, and the current scene is recorded by the network. After the information is analyzed and filtered, the coverage problem of the cell can be found accurately and timely, which helps the operator to decide whether to re-plan the cell to take appropriate measures to avoid greater losses.

2 is a scene diagram of a third embodiment of a method for detecting a coverage problem according to the present invention. As shown in FIG. 2, in an isolated cell, the terminal 10 goes out of the coverage of the cell 20 and returns to the cell 20, or the terminal 10 enters the coverage hole 30 of the cell 20 and returns to the cell 20, for the above two cases of the isolated cell. The method of detecting the coverage problem includes the following steps:

Step 301: The network performs measurement configuration on the terminal.

If the network needs some terminals or all the terminals that are camped on the cell 20 to assist in the discovery of the coverage problem, the terminal 10 may be configured in the cell broadcast message, or may be configured through the network and the UE's proprietary signaling. . The specific configuration may include: an RRC connection setup message when the UE initiates an RRC connection; a measurement control message sent by the network to the UE; an RRC connection release message when the UE transitions from the active state to the Idle state. At the same time, the UE can also be allowed to decide whether to receive such a measurement configuration. This can be achieved by modifying the subscription information between the UE and the network operator.

Step 302: Record and save the measurement information when the cell 20 coverage is lost; wherein, when the terminal 10 finds that the coverage is lost, the measurement of the information of the cell 20 is started, and the measurement information is recorded and saved until re-entering the coverage of the cell 20. The measurement information may be at least one of the following: downlink signal strength or quality of the cell 20; identity of the cell 20; downlink frequency range of the cell 20; location information of the terminal 10; frequency of measurement or DRX; Time; the duration from the loss of coverage of cell 20 to the return to cell 20. Wherein, the location of the terminal 10 Information, including when the UE loses coverage of the cell 20, when the cell 20 is recovered, and at approximate location information from loss of coverage to recovery coverage duration, such as by

The current location information of the terminal 10 obtained by the GPS.

Step 303: The terminal 10 sends the measurement information to the network.

The terminal 10 may send the measurement information to the network by using an RRC (Radio Resource Control) uplink message, such as a measurement sending message, an RRC connection request message, or the like, or may use RLC (Radio Link Control). /MAC (Media Access Control) layer/physical layer message sends measurement information to the network, for example, data retransmission process of RLC, HARQ (Hybrid Automatic Repeat Request) or physical layer In the interactive message, the saved record is sent to the network. The specific sending time mode may be one of the following or a combination of at least two:

(1) After discovering that the terminal 10 loses coverage, establishing a connection with the network, and immediately transmitting the measurement information to the network from the idle state to the active state;

(2) Send the information to the network when the next normal call is initiated, for example

RRC connection request message, measurement sending message, etc.;

(3) After a certain period of time, such as one week, one month later, a certain measurement data will be transmitted when the connection with the network is initiated, or, after a certain time, the UE and the network will send measurement information during the normal call. ;

(4) After the measurement data has accumulated to a certain scale, for example, when it reaches 10, it is sent to the network. The specific size can be configured in step 301.

Step 304: After receiving the measurement information, the network detects the coverage problem according to the measurement information.

The network analyzes and filters the measurement information to detect the coverage problem of the cell 20 in a timely manner.

The method for detecting the coverage problem in the above scenario is applicable not only to the case where the terminal is in an idle state, but also to the case where the terminal is in an active state. ,

When the terminal performs cell signal measurement in peacetime, if it finds that it enters a special state, it loses coverage, reselects the cell, or initiates service discovery in idle state, and loses coverage. In other words, the current scene is measured, and the measurement information is transmitted to the network. After receiving the measurement information, the network analyzes and filters, and can accurately and timely discover the coverage problem of the cell, thereby helping the operator to decide whether to re-plan. The community takes appropriate measures to avoid greater losses.

In addition, the foregoing third embodiment provides measurement information for the terminal, which is a solution for the terminal to participate in the network detection coverage problem. For the above scenario, in the active state, the network and the terminal have interaction, so the network can record the location of the terminal by The fourth embodiment of the present invention includes the following steps: Step 401: In the active state, the network recording terminal 10 enters the information in the special state;

When the network discovery terminal 10 loses coverage, the related information of the terminal 10 is measured until the terminal 10 re-enters the coverage of the cell 20. The information may be at least one of the following: downlink signal strength or quality of the cell 20; identity of the cell 20; downlink frequency range of the cell 20; location information of the terminal 10; frequency of measurement or DRX; time of cell 20 coverage loss The duration from the loss of coverage of cell 20 to the return of coverage back to cell 20. The location information of the terminal 10 includes when the terminal misses the coverage of the cell 20, when the cell 20 is restored, and the approximate location information from the loss of coverage to the recovery coverage duration. For example, the current location information of the terminal 10 obtained by GPS.

Step 402: Detect a coverage problem according to the above information.

FIG. 3 is a scenario diagram of a fifth embodiment of a method for detecting a coverage problem according to the present invention. As shown in FIG. 3, in a neighboring area where the same RAT exists, the terminal 10 moves out of the coverage of the cell 51 and enters the neighboring cell 52 of the cell 51. Coverage, where the terminal passes through a coverage hole 55 between the cell 51 and the cell 52, wherein the cells 51, 52, 53, 54 have the same RAT The neighboring cell, the method for detecting the coverage problem of the neighboring cell having the same RAT includes the following steps:

Step 501: The network performs measurement configuration on the terminal 10;

Among them, if the network needs some terminals or all terminals in the cells 51, 52 to help find the coverage problem. The terminal 10 may be configured in a cell broadcast message, or may be configured through network and UE proprietary signaling. The specific configuration may include: an RRC connection setup message when the UE initiates an RRC connection; a measurement control message sent by the network to the UE; an RRC connection release message when the UE transitions from the active state to the Idle state. At the same time, the UE can also be allowed to decide whether to receive such a measurement configuration. This can be achieved by modifying the subscription information between the UE and the network operator.

Step 502: Record and save the measurement information when the cell 51 is lost. Wherein, when the terminal 10 leaves the cell 51 and loses the coverage and enters the coverage hole 55, the information of the cell 51 is measured, and the measurement information is recorded and saved until it resides in the cell 51. Within the coverage of cell 52. The measurement information may be at least one of the following: downlink signal strength or quality of the cell 51 and the neighboring cells 52, 53, 54; the identity of the cell 51, the incoming neighboring cell 52, and other measurements found during the measurement Identification of cells 53, 54; measured downlink frequency range of cells 51, 52, 53, 54; location information of terminal 10; frequency of measurement or DRX; time of loss of cell 51 coverage; coverage from lost cell 51 to resident The duration of coverage of cell 52. The location information of the terminal 10 includes when the terminal loses the coverage of the cell 51, when the cell 52 is restored, and the approximate location information from the loss of coverage to the recovery coverage duration. For example, the current location information of the terminal 10 obtained by GPS.

Step 503: The terminal 10 sends the measurement information to the network.

The terminal 10 may send the measurement information to the network by using an RRC uplink message, such as a measurement sending message, an RRC connection request message, or the like, or may send the measurement information to the network by using an RLC/MAC layer/physical layer message, for example, in RLC, HARQ. In the data retransmission process or the signaling interaction message of the physical layer, the saved record is sent to the network. The specific sending time can be at least one of the following:

(1) After discovering that the terminal 10 loses coverage, establishing a connection with the network, from the idle state When entering the active state, the measurement information is immediately sent to the network;

RRC connection request message, measurement sending message, etc.;

(3) After a certain period of time, such as one week and one month later, the connection between the originating and the network will accumulate a certain amount of measurement data to be transmitted, or send measurement information during the normal calling process of the UE and the network;

(4) After the measurement data has accumulated to a certain scale, for example, when it reaches 10, it is sent to the network. The specific size is configured in step 501.

Step 504: After receiving the measurement information, the network detects the coverage problem according to the measurement information.

The network analyzes and filters the measurement information, so that the coverage problem of the cell 51 can be detected accurately and timely.

The method for detecting the coverage problem in the above scenario is applicable not only to the case where the terminal is in an idle state, but also to the case where the terminal is in an active state. In addition, the neighboring area scenario in which the cells 51, 52, 53, and 54 are different RATs is the same as the method for detecting the coverage problem in the fifth embodiment, and details are not described herein again.

In addition, the foregoing fifth embodiment provides measurement information for the terminal, which is a solution for the terminal to participate in the network detection coverage problem. For the above scenario, in the active state, the network and the terminal have interaction, so the network can record the location of the terminal by Obtaining the coverage problem that the information may be found, such as the scenario diagram shown in FIG. 3, the sixth embodiment of the method for detecting the coverage problem of the present invention includes the following steps:

Step 601: The network recording terminal 10 enters information in a special state in an activated state; When the network discovery terminal 10 loses coverage, the related information of the terminal 10 is measured until the terminal 10 camps within the coverage of the cell 52. The measurement information may be at least one of the following: downlink signal strength or quality of the cell 51 and the neighboring cells 52, 53, 54; the identity of the cell 51, the incoming neighboring cell 52, and other measurements found therebetween Measuring the identity of the cells 53, 54; the downlink frequency range of the cells 51, 52, 53, 54; the location information of the terminal 10; the frequency of measurement or DRX; the time of the cell 51 coverage lost; the coverage of the lost cell 51 to the camping cell The duration of the coverage of 52. The location information of the terminal 10 includes when the UE loses the coverage of the cell 51, when the restoration of the cell 52 is covered, and the approximate location information from the loss of coverage to the recovery coverage duration. The current location information of the terminal 10 obtained, for example, by GPS.

Step 602: Detect a coverage problem according to the foregoing information.

4 is a scenario diagram of a seventh embodiment of a method for detecting a coverage problem according to the present invention. As shown in FIG. 4, in an isolated cell, the terminal 10 performs cell reselection, and walks out of the cell 71 to enter the cell 72 and returns to the cell 71, or The coverage hole of the cell 71 is returned to the coverage of the cell 71. The cell 71 and the cell 72 are neighboring cells of different RATs. The method for detecting the coverage problem for the isolated cell of the neighboring cell with different RATs includes the following steps: Step 701 a configuration in which the network performs measurement on the terminal 10;

Wherein, if the network needs some terminals or all the terminals that reside in the cells 71, 72 to assist in finding the coverage problem. The terminal 10 may be configured in a cell broadcast message, or may be configured through network and UE proprietary signaling. The specific configuration may include: an RRC connection setup message when the UE initiates an RRC connection; a measurement control message sent by the network to the UE; an RRC connection release message when the UE transitions from the active state to the Idle state. At the same time, the UE can also be allowed to decide whether to receive such a measurement configuration. This can be achieved by modifying the subscription information between the UE and the network operator. Step 702: Record and save measurement information when the cell reselects into the cell 72. When the terminal 10 performs cell reselection to enter the cell 72, or enters the coverage hole 73, the measurement of the cell 71 is started, and the measurement information is recorded and saved. Until it returns to the cell 71. The terminal 10 is in an idle state, and the measurement information may be at least one of the following: downlink signal strength or quality of the cell 71 and the neighboring cell 72; identifiers of the cells 71 and 72; downlink frequency ranges of the cells 71 and 72; Location information of 10; frequency of measurement or DRX; time of camping on cell 72; duration from loss of coverage of cell 71 to camped cell 72 and back to cell 71.

The terminal 10 is in an active state, and the measurement information may be at least one of the following: downlink signal strength or quality of the cell 71 and the neighboring cell 72; identifiers of the cells 71 and 72; downlink frequency ranges of the cells 71 and 72; Location information of 10; frequency of measurement or DRX; time of handover to cell 72; duration of handover from cell 71 to cell 72 and back to cell 71.

The location information of the terminal 10 includes when the UE loses the coverage of the cell 71, when the cell 71 is restored, and the approximate location information from the loss of coverage to the recovery coverage duration. For example, the current location information of the terminal 10 obtained by GPS.

Step 703: The terminal 10 sends the measurement information to the network.

The terminal 10 may send the measurement information to the network by using an RRC uplink message, such as a measurement sending message, an RRC connection request message, or the like, or may send the measurement information to the network by using an RLC/MAC layer/physical layer message, for example, in RLC, HARQ. In the data retransmission process or the signaling interaction message of the physical layer, the saved record is sent to the network. The specific transmission time mode may be one of the following or a combination of at least two:

(2) Send the information to the network the next time the call is normally initiated. For example, through an RRC connection request message, measuring a transmission message, etc.;

(3) After a certain period of time, such as one week, one month later, the connection between the originating network and the network will accumulate certain measurement data, or send measurement information during the normal call of the UE and the network; (4) After the measurement data has accumulated to a certain scale, for example, when it reaches 10, it is sent to the network. The specific size is configured in step 701.

Step 704: After receiving the measurement information, the network detects the coverage problem according to the measurement information.

The network analyzes and filters the measurement information to determine whether the coverage of the cell 71 needs to be re-planned to find or eliminate the coverage vulnerability. In addition, the cells 71 and 72 may also be the neighboring cells of the same RAT. For example, the hotspot cell may be configured with multiple cells, which is the same as the method for detecting the coverage problem in the seventh embodiment, and details are not described herein again.

In addition, the foregoing seventh embodiment provides measurement information for the terminal, which is a solution for the terminal to participate in the network detection coverage problem. For the above scenario, in the active state, the network and the terminal have interaction, so the network can record the location of the terminal by Obtaining the coverage problem that the information may be found, as shown in the scenario of FIG. 4, the eighth embodiment of the method for detecting the coverage problem of the present invention includes the following steps:

Step 801: The network recording terminal 10 enters the information in the special state in the activated state;

When the network discovery terminal 10 performs cell reselection, it starts measuring the related information of the terminal 10 until the terminal 10 switches to the cell 72 and then switches to the cell 72. The measurement information may be at least one of the following: downlink signal strength or quality of the cell 71 and the neighboring cell 72; identifiers of the cells 71, 72; downlink frequency ranges of the cells 71, 72; location information of the terminal 10; Degree or DRX; time to handover to cell 72; duration of handover from cell 71 to cell 72 and back to cell 71. The location information of the terminal 10 includes when the UE loses the coverage of the cell 71, when the restoration cell 71 is covered, and the approximate location information from the loss of coverage to the recovery coverage duration. example The current location information of the terminal 10 as obtained by GPS.

Step 802: Detect the coverage problem according to the above information.

FIG. 5 is a scenario diagram of a ninth implementation manner of a method for detecting a coverage problem according to the present invention. As shown in FIG. 5, in a neighboring cell having the same and different RATs, the terminal 10 performs cell reselection, and walks out of the cell 91 to enter the cell 95. Returning to the cell 92, where the cell 91 and the cell 95 are neighboring cells of different RATs, wherein the cell 91 and the cell 92 are neighboring cells of the same RAT, and the method for detecting the coverage problem for the neighboring cells having the same and different RATs Includes the following steps:

Step 901: The network performs measurement configuration on the terminal 10;

Among them, if the network needs some terminals or all terminals in the cells 91, 92 to help find the coverage problem. The terminal 10 may be configured in a cell broadcast message, or may be configured through network and UE proprietary signaling. The specific configuration may include: an RRC connection setup message when the UE initiates an RRC connection; a measurement control message sent by the network to the UE; an RRC connection release message when the UE transitions from the active state to the Idle state. At the same time, the UE can also be allowed to decide whether to receive such a measurement configuration. This can be achieved by modifying the subscription information between the UE and the network operator.

Step 902: Record and save the measurement information when the cell reselects to enter the cell 95. When the terminal 10 performs cell reselection and enters the cell 95, the information of the cell 91 is measured, and the measurement information is recorded and saved until the cell 92 is re-entered. Inside. The terminal 10 is in an idle state, and the measurement information may be at least one of the following: downlink signal strength or quality of the cell 91 and neighboring cells 92, 93, 94, 95; cells 91, 92, 93, 94, 95 Identification of the downlink frequency range of the cells 91, 92, 93, 94, 95; location information of the terminal 10; frequency of measurement or DRX; time of loss of coverage of the cell 91; coverage from the lost cell 91 to the resident cell 95 Enter the duration of the cell 92. The terminal 10 is in an active state, and the measurement information may be at least one of the following: downlink signal strength or quality of the cell 91 and neighboring cells 92, 93, 94, 95; cells 91, 92, 93, 94, 95 Identification; cell 91, 92, 93, 94, 95 downlink frequency range; terminal 10 location information; measurement frequency or DRX; cell 91 coverage time; from cell 91 coverage to handover to cell 95 and then to cell 92 The duration.

The location information of the terminal 10 includes when the UE loses the coverage of the cell 91, when the cell 92 is restored, and the approximate location information from the loss of coverage to the recovery coverage duration. For example, the current location information of the terminal 10 obtained by GPS.

Step 903: The terminal 10 sends the measurement information to the network.

(4) After the measurement data has accumulated to a certain scale, for example, when it reaches 10, it is sent to the network. The specific size is configured in step 901.

Step 904: After receiving the measurement information, the network detects the coverage problem according to the measurement information.

The network analyzes and filters the measurement information, and can determine whether the coverage of the cell 91 needs to be re-planned to find or eliminate the coverage vulnerability. In addition, the cells 91 and 94 may also be neighbors of the same RAT. For example, multiple cells may be set in the hotspot cell, and the cells 91 and 92, 93, and 94 may also be neighbors of different RATs, which are detected by the ninth embodiment. The method of covering the problem is the same, and will not be described again.

In addition, the ninth embodiment provides the terminal with measurement information, which is a solution for the terminal to participate in the network detection coverage problem. For the above scenario, in the active state, the network and the terminal have interaction, so the network can record the location of the terminal by Obtaining the coverage problem that the information may be found, as shown in FIG. 5, the method for detecting the coverage problem of the present invention includes the following steps:

Step 1001: The information when the network recording terminal 10 enters the special state in the active state;

When the network discovery terminal 10 performs cell reselection, it starts measuring the related information of the terminal 10 until the terminal 10 switches to the cell 95 and then switches to the cell 92. The measurement information may be at least one of the following: downlink signal strength or quality of the cell 91 and the neighboring cells 92, 93, 94, 95; identifiers of the cells 91, 92, 93, 94, 95; cells 91, 92 , 93, 94, 95 downlink frequency range; location information of the terminal 10; frequency of measurement or DRX; loss of coverage of the cell 91; duration of handover from the coverage of the lost cell 91 to the cell 95 and then the cell 92.

The location information of the terminal 10 includes when the UE loses the coverage of the cell 91, when the coverage cell 92 is restored, and the approximate location information from the loss of coverage to the recovery coverage duration. For example, the current location information of the terminal 10 obtained by GPS.

Step 1002: Detect the coverage problem according to the above information.

In the active state, the network and the terminal are interactive. The network can also record the location of the terminal, and the terminal enters a special state, that is, the coverage is lost or the cell is reselected in the active state, and the current scene is recorded by the network. After the information is analyzed and filtered, the coverage problem of the community can be found accurately and timely, which helps the operator to decide whether to re-regulate the information. Plan the community to take appropriate measures to avoid greater losses.

FIG. 6 is a scenario diagram of an eleventh implementation manner of a method for detecting a coverage problem according to the present invention. As shown in FIG. 6, when a terminal initiates a service in an idle state and finds a scenario where the coverage is lost, the terminal 10 initiates a service in an idle state. And finding that the coverage of the cell 111 is lost, or entering the coverage hole 113, the method for detecting the coverage problem of the terminal initiating the service in the idle state and finding the loss of coverage includes the following steps:

Step 1101: The network performs measurement configuration on the terminal 10;

Among them, if the network needs some terminals or all terminals in the cells 111, 112 to help find the coverage problem. The terminal 10 may be configured in a cell broadcast message, or may be configured through network and UE proprietary signaling. The specific configuration may include: an RRC connection setup message when the UE initiates an RRC connection; a measurement control message sent by the network to the UE; an RRC connection release message when the UE transitions from the active state to the Idle state. At the same time, the UE can also be allowed to decide whether to receive such a measurement configuration. This can be achieved by modifying the subscription information between the UE and the network operator.

Step 1102: When the service is initiated in an idle state and the terminal is found to have lost coverage, the measurement information is recorded and saved.

When the terminal 10 initiates the service discovery and loses the coverage in the idle state, the information of the cell 111 is measured, and the measurement information is recorded and saved until the coverage of the cell 111 or the neighboring cell 112 is returned. The terminal 10 is in an idle state, and the measurement information may be at least one of: downlink signal strength or quality of the cell 111 and/or the neighboring cell 112; identifier of the cell 111 and/or the cell 112; the measured cell 111 And/or the downlink frequency range of the cell 112; the location information of the terminal 10; the frequency of measurement or DRX; the time when the service is initiated and the loss of coverage is found; the duration from the coverage of the lost cell 111 to the re-entry of the cell 111 or the coverage of the cell 112 .

The location information of the terminal 10 includes when the UE loses the coverage of the cell 111, when the cell 111 is restored, and the approximate location information from the loss of coverage to the recovery coverage duration. For example, the current location information of the terminal 10 obtained by GPS.

Step 1103: The terminal 10 sends the measurement information to the network.

The terminal 10 can send the measurement information to the network by using an RRC uplink message. For example, the measurement sending message, the RRC connection request message, etc., or the measurement information may be sent to the network through the RLC/MAC layer/physical layer message, for example, in the RLC, HARQ data retransmission process or the physical layer signaling interaction message, The saved record is sent to the network. The specific sending time mode can be at least one of the following:

(4) After the measurement data has accumulated to a certain scale, for example, when it reaches 10, it is sent to the network. The specific size is configured in step 1101.

Step 1104: After receiving the measurement information, the network detects the coverage problem according to the measurement information.

The network analyzes and filters the measurement information, and can determine whether the coverage of the cell 111 needs to be re-planned to find or eliminate the coverage vulnerability.

According to the foregoing embodiment, when the terminal performs the measurement of the cell signal, if the terminal is found to enter the special state, that is, the coverage is lost, the cell is reselected, or the service is found to be lost in the idle state, the situation is measured. And transmitting the measurement information to the network. After receiving the measurement information, the network analyzes and filters, and can accurately and timely discover the coverage problem of the cell, thereby helping the operator to decide whether to re-plan the cell to take appropriate measures to avoid further Big loss. In addition, in the active state, the network and the terminal are interactive, and the network can also record the current scene by recording the location of the terminal, and the terminal enters a special state, that is, the coverage is lost or the cell is reselected in the activated state, and the network records the current scene. After the information is analyzed and filtered, the coverage problem of the cell can be found accurately and timely, which helps the operator to decide whether to re-plan the cell to take appropriate measures to avoid greater losses.

When the terminal performs the measurement of the cell signal in peacetime, if it finds that it enters a special state, If the coverage is lost, the cell is reselected, or the service is found to be out of the idle state, the coverage is measured, and the measurement information is transmitted to the network. After the network receives the measurement information, it can be analyzed and filtered. The problem of coverage of the cell is discovered in time, which in turn helps the operator to decide whether to re-plan the cell to take appropriate measures to avoid greater losses.

FIG. 7 is a schematic structural diagram of a first embodiment of a system for detecting a coverage problem according to the present invention, wherein the system 200 includes:

The terminal 10 is configured to record and save measurement information when entering a special state, and send the measurement information to the network;

The network 210 is configured to receive measurement information sent by the terminal, and detect the coverage problem according to the measurement information.

The terminal 10 includes a recording unit 220 and a sending unit 230. The network 210 includes a receiving unit 240 and a detecting unit 250 and a configuration unit 260, where:

The configuration unit 260 is configured to perform measurement on the terminal 10;

The recording unit 220 is configured to record and save measurement information when entering a special state; and the sending unit 230 is configured to send the measurement information in the recording unit 220 to the network.

210;

The receiving unit 240 is configured to receive the measurement information sent by the sending unit 230, and the detecting unit 250 is configured to detect the coverage problem according to the measurement information.

The measurement information is at least one of the following: the downlink signal strength or quality of the cell or the neighboring cell; or the identity of the cell or the neighboring cell; or the downlink frequency range of the cell or the neighboring cell; or the location information of the terminal ; or the frequency of measurements or discontinuous reception parameters; or the time to enter a special state; or the duration of a particular state.

For the scenario in FIG. 2 and FIG. 3, the special state is a state in which the terminal goes out of the cell 20, 51 and loses coverage, and the time of entering the special state is a time when the terminal leaves the cell 20, 51 and loses coverage; The duration in the special state is the duration that the terminal loses coverage from the outgoing cell 20, 51 to the coverage or camped cell 52 that is returned to the cell 20.

Wherein, for the scenarios in FIG. 4 and FIG. 5, the special state is in an idle state. The terminal 10 reselects the state of the cell, the time of entering the special state is the time from the loss of the coverage of the cell 71, 91; the duration in the special state is from the coverage of the lost cell 71 to the resident cell 72 and then back The duration of the cell 71; or the duration from the loss of the coverage of the 91 cell to the resident cell 95 and back to the cell 92; or the state of the terminal reselecting the cell in the active state, the special state time The time from the loss of the coverage of the cell 71, 91; the duration in the special state is the duration of the handover of the lost cell 71 to the cell 72 and then back to the cell 71; or from the loss of the coverage of the cell 91 to the handover The cell 95 then switches to the duration of the cell 92. The cell 71 and the cell 72 are cells having different or the same RAT; the cell 91 and the cell 95 are cells having different or the same RAT, and the cell 91 and the cell 92 have cells of the same or different RATs.

For the scenario of FIG. 6, the special state is a state in which an attempt is made to initiate a service in an idle state, and the measurement information recorded and saved is at least one of the following: a downlink signal strength of the cell 111 and/or the neighboring cell 112 or Quality; identity of cell 111 and/or cell 112; measured downlink frequency range of cell 111 and/or cell 112; location information of terminal 10; frequency of measurement or DRX; time of loss of coverage when initiating service; The coverage of the cell 111 to the duration of re-entry into the cell 111 or the coverage of the cell 112.

FIG. 8 is a schematic structural diagram of a second embodiment of a system for detecting a coverage problem according to the present invention, wherein the system 300 includes: a terminal 10 and a network 310, wherein

The network 310 is configured to record information when the terminal 10 enters a special state in an active state, and to detect a coverage problem according to the foregoing information. The network 310 includes a recording unit 340 and a detecting unit 350. The recording unit 340 is configured to record information when the terminal 10 enters a special state in an active state, and the detecting unit 350 is configured to detect an overlay problem according to the foregoing information. The measurement information is at least one of the following: the downlink signal strength or quality of the cell or the neighboring cell; or the identity of the cell or the neighboring cell; or the downlink frequency range of the cell or the neighboring cell; or the location information of the terminal ; or the frequency of measurements or discontinuous reception parameters; or the time to enter a special state; or the duration of a particular state.

For the scenario in FIG. 2 and FIG. 3, the special state is a state in which the terminal goes out of the cell 20, 51 in the activated state, and the time of entering the special state is the time when the terminal goes out of the cell 20, 51 and loses coverage. The duration in the special state is the time from when the terminal leaves the cell 20, 51 to lose coverage to return to the coverage of the cell 20 or camps on the cell 52.

For the scenario in FIG. 4 and FIG. 5, when the special state is in the activated state, the terminal reselects the state of the cell, and the entering the special state time is the time when the cell 71, 91 is lost; The duration is the duration of the handover of the lost cell 71 to the cell 72 and then back to the cell 71; or the duration from the loss of the coverage of the cell 91 to the handover of the cell 95 and then to the cell 92. The cell 71 and the cell 72 are cells having different or the same RAT; the cell 91 and the cell 95 are cells having different or the same RAT, and the cell 91 and the cell 92 have the same or different RAT cells.

According to the foregoing embodiment, when the terminal performs the measurement of the cell signal, if the terminal is found to enter the special state, that is, the coverage is lost, the cell is reselected, or the service is found to be lost in the idle state, the situation is measured. And transmitting the measurement information to the network. After receiving the measurement information, the network analyzes and filters, and can accurately and timely discover the coverage problem of the cell, thereby helping the operator to decide whether to re-plan the cell to take appropriate measures to avoid further Big loss. In addition, in the active state, the network and the terminal are interactive, and the network can also enter the special state by recording the location of the terminal. That is, if the coverage or cell reselection is lost in the active state, the network records the current scene, and the recorded information is analyzed and filtered to accurately and timely discover the coverage problem of the cell, thereby helping the operator to decide whether to re-plan. The community takes appropriate measures to avoid greater losses.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by hardware, or can be implemented by means of software plus necessary general hardware platform, and the technical solution of the present invention. It can be embodied in the form of a software product that can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for making a computer device (may It is a personal computer, a server, or a network device, etc.) that performs the methods described in various embodiments of the present invention.

In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

A method for providing measurement information, comprising:

Record and save measurement information when entering a special state;

Send the measurement information.

2. The method for providing measurement information according to claim 1, wherein the operation of recording and saving the measurement information when entering the special state further comprises receiving the configuration of the measurement.

The method for providing measurement information according to claim 1, wherein the specific transmission time in the operation step of transmitting the measurement information may be at least one of the following:

Sending the measurement information when establishing a connection with the network after entering the special state and entering the active state from the idle state;

The method for providing measurement information according to any one of claims 1 to 3, wherein the measurement information is at least one of the following:

Outgoing signal strength or quality of the downlink or neighboring cell;

Going out of the identity of the cell or neighboring cell;

Going out of the downlink frequency range of the cell or neighboring cell;

Location information of the terminal; Frequent measurement or discontinuous reception parameters;

Time to enter a special state;

The duration in a special state.

The method for providing measurement information according to claim 4, wherein the special state is a state in which the terminal leaves the first cell and loses coverage, and the time when the special state is entered is a time when the terminal leaves the first cell and loses coverage. The duration in the special state is the time from when the terminal leaves the first cell to lose coverage to return to the coverage of the first cell or camps on the second cell.

The method for providing measurement information according to claim 4, wherein the special state is a state in which the terminal reselects a cell in an idle state, and the time in the special state is a loss of a first cell coverage time; The duration stated in the special state is the duration from the loss of the coverage of the first cell to the return of the second cell to the first cell, or from the loss of the coverage of the first cell to the camping of the second cell and then back to the The duration of the three cells; or

The special state is a state in which the terminal reselects the cell in the activated state, where the time of entering the special state is the time when the coverage of the first cell is lost; and the duration of the special state is that the coverage of the first cell is lost. The duration of switching back to the first cell after the second cell; or the duration from the loss of the coverage of the first cell to the handover of the second cell to the third cell.

The method for providing measurement information according to claim 6, wherein the first cell and the second cell are cells having different or the same radio access technology, and the first cell and the third cell are the same or different. Cell of radio access technology.

The method for providing measurement information according to any one of claims 1 to 3, wherein the special state is a state in which a service is initiated in an idle state and a coverage is lost, and the measurement information recorded and saved is below. At least one type: the downlink signal strength or quality of the cell or the neighboring cell; the identity of the cell or the neighboring cell; the downlink frequency range of the cell or the neighboring cell; the time when the service discovery is lost; Initiating the service to discover the time when the coverage is lost to the duration of the coverage of the coverage cell;

Location information of the terminal; frequency of measurement or discontinuous reception parameters.

A device for providing measurement information, comprising: a recording unit, configured to record and save measurement information when the terminal enters a special state; and a sending unit, configured to send the measurement information.

A method for detecting a coverage problem, comprising the steps of: receiving measurement information recorded and saved by a terminal in a special state; and detecting a coverage problem according to the measurement information.

A method for detecting a coverage problem, comprising: recording, in an activation state, information that a terminal enters a special state;

The coverage problem is detected based on the information.

The method for providing measurement information according to claim 11, wherein the operation of recording and saving measurement information before entering a special state further comprises: The configuration for making measurements.

13. The method of detecting a coverage problem according to claim 11, wherein the information is at least one of the following:

Outgoing signal strength or quality of the downlink or neighboring cell;

Going out of the identity of the cell or neighboring cell;

Going out of the downlink frequency range of the cell or neighboring cell;

Location information of the terminal;

Frequent measurement or discontinuous reception parameters;

Time to enter a special state;

The duration in a special state.

The method for detecting a coverage problem according to claim 13, wherein the special state is a state in which the terminal leaves the first cell to lose coverage, and the time when the special state is entered is a time when the terminal leaves the first cell to lose coverage. The duration in the special state is the duration from when the terminal leaves the first cell to lose coverage to return to the first cell or camps on the second cell.

The method for detecting a coverage problem according to claim 13, wherein the special state is a state in which the terminal reselects a cell in an idle state, and the entering the special state time is that the coverage of the first cell is lost. The duration in the special state is the duration from the loss of the coverage of the first cell to the return of the second cell to the first cell; or from the loss of coverage of the first cell to the camping of the second cell. Return to the duration of the third cell; or

When the special state is in the activated state, the terminal reselects the state of the cell, and then the special access The special state time is the time when the coverage of the first cell is lost; the duration in the special state is the duration of the handover of the first cell to the second cell and then the handover back to the first cell; or the loss of the first cell The coverage is the duration until the second cell is switched and then switched to the third cell.

The method for detecting a coverage problem according to claim 15, wherein the first cell and the second cell are cells having different or the same radio access technology; the first cell and the third cell have the same or different wireless A cell that accesses technology.

A device for detecting a coverage problem, comprising: a recording unit configured to record information of a terminal entering a special state in an active state; and a detecting unit configured to detect a coverage problem according to the above information.

The device for detecting a coverage problem according to claim 17, further comprising: a configuration unit configured to perform measurement on the terminal.

A method for detecting a coverage problem, comprising: recording, by a terminal, a measurement information in a special state, and transmitting the measurement information to a network; after receiving the measurement information, the network according to the The measurement information described covers the coverage problem.

The method for detecting a coverage problem according to claim 19, further comprising: before the operation of recording and saving the measurement information in the special state, the terminal further comprises: configuring, by the network, the terminal to perform measurement.

The method for detecting a coverage problem according to claim 19, wherein the specific transmission time in the operation step of transmitting the measurement information may be at least one of the following: Sending the measurement information when establishing a connection with the network after entering the special state and entering the active state from the idle state;

A system for detecting a coverage problem, comprising: a terminal, configured to record and save measurement information when entering a special state, and send the measurement information to a network;