WO2014107898A1

WO2014107898A1 - Method and device for reducing paging signalling

Info

Publication number: WO2014107898A1
Application number: PCT/CN2013/070411
Authority: WO
Inventors: 黄兴华; 高良柱; 韩和生
Original assignee: 华为技术有限公司
Priority date: 2013-01-14
Filing date: 2013-01-14
Publication date: 2014-07-17
Also published as: CN103404215B; CN103404215A

Abstract

Disclosed is a method for reducing paging signalling traffic. The method for reducing paging signalling traffic comprises acquiring information about a user equipment, and paging in a cell to which the latest recorded location information about the user equipment belongs when it is determined that the user equipment is in a slow-speed state, with the information about the user equipment including identification information about the user equipment, location information about the user equipment and time information corresponding to the location information. Using the method of the embodiments of the present invention can optimize paging signalling, and reduce the load of a communication system, thereby improving the performance of the communication system. Also disclosed is a device for reducing paging signalling.

Description

Method and device for reducing paging signaling

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for reducing paging signaling. Background technique

In a wireless network, before a user answers a call or receives a short message, the core network (Core Network, CN) first sends a paging message to page the user, and the user initiates the process of accessing the network after receiving the paging message. .

Take a Wideband Code Division Multiple Access (WCDMA) network as an example. In a typical network configuration, all cells in a Radio Network Controller (RNC) belong to the same location area code. (Location Area Code, LAC), and the number of cells will generally be hundreds or even thousands. The RNC needs to place a page within a large range. According to the existing paging method, there will be a lot of paging-related signaling in the access network.

When the system is busy, too many paging messages will cause the system load to rise, causing congestion, and dropping paging messages, affecting network performance and user experience. Summary of the invention

In view of this, the embodiments of the present invention provide a method and apparatus for reducing paging signaling, which can reduce the load of the communication system and reduce the rate of dropping the paging.

The first aspect provides a method for reducing paging signaling, including: the base station control device obtains and records information of the user equipment, where the information of the user equipment includes location information of the user equipment and time information and identification information corresponding to the location information, where The location information of the user equipment is used to determine the location of the user equipment, the identifier information is used by the base station control device to uniquely determine the user equipment; and the base station control device determines the state of the user equipment according to the information of the user equipment. If the state of the user equipment is a slow state, where the slow state indicates that the moving speed of the user equipment is lower than the set first threshold, the base station controls the user equipment corresponding to the saved latest time information. The user equipment is paged in the cell determined by the location information.

In a first possible implementation manner of the first aspect, if the state of the user equipment is a slow state, the base station controls the neighboring cell of the cell determined by the location information of the user equipment corresponding to the saved latest time information. Paging the user equipment.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the base station control device obtains and records information about the user equipment, including: when the user equipment enters a connection state or leaves In the connection state, the base station controls the device to acquire and record the latitude and longitude of the user equipment as the location of the user equipment.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner, the base station control device obtains and records information about the user equipment, including: when the user equipment enters a connection state or leaves In the connection state, the base station control device acquires and records the latitude and longitude of the cell center where the user equipment is located or the latitude and longitude of the antenna of the base station to which the cell belongs, or the cell identifier of the cell where the user equipment is located, as the location of the user equipment.

With reference to the first aspect, or any one of the first to the third possible implementation manners of the first aspect, in a fourth possible implementation manner, the base station control device determines a state of the user equipment according to the information of the user equipment, The base station control device calculates a moving speed of the user equipment according to the last two pieces of position information of the recorded user equipment, compares the calculated moving speed of the user equipment, and the first threshold to determine the state of the user equipment.

With reference to the first aspect or the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner, if the base station control device pages the user equipment for more than a predetermined time, the base station control device is Paging is performed in all cells indicated by the location information carried in the paging messages received by the cell or the device it manages.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, if the state of the user equipment is a non-slow state, the non-slow state indicates that the moving speed of the user equipment is not lower than the set second The threshold, the base station control device pages the user equipment in all cells indicated by the location information carried in the paging messages received by the cell or the device. In conjunction with the sixth possible implementation of the first aspect, in a seventh possible implementation, the first threshold and the second threshold are the same threshold.

With reference to the first aspect or the first to the seventh possible implementation manners of the first aspect, in an eighth possible implementation, the method further includes: after the user equipment leaves the network, the base station control device deletes the user equipment information.

A second aspect provides an apparatus for reducing paging signaling, including a receiver, a processor, and a memory, where the receiver is configured to acquire information of a user equipment; and the information of the user equipment includes a location of the user equipment. Time information and identification information corresponding to the information and the location information, the location information of the user equipment is used to determine a location of the user equipment, the identifier information is used by the base station control device to uniquely determine the user equipment; Storing information of the user equipment acquired by the receiver; the processor is configured to determine a state of the user equipment according to the information of the user equipment saved by the memory, and if the state of the user equipment is a slow state, the latest time information saved The user equipment is paged in the cell determined by the location information of the corresponding user equipment, where the slow state indicates that the moving speed of the user equipment is lower than the set first threshold.

In a first possible implementation manner of the second aspect, the method further includes: the processor is further configured to: when determining that the state of the user equipment is a slow state, the user equipment corresponding to the saved latest time information The user equipment is paged in a neighboring cell of the cell determined by the location information.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner, the location information of the user equipment includes: when the user equipment enters a connection state or leaves the connection state, the receiver The latitude and longitude of the acquired user equipment.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a third possible implementation, the location information of the user equipment includes: when the user equipment enters a connection state or leaves the connection state, the receiver The acquired latitude and longitude of the cell center where the user equipment is located or the latitude and longitude of the antenna of the base station to which the cell belongs, or the cell identifier of the cell where the user equipment is located.

With reference to the second aspect or the first to the third possible implementation manners of the second aspect, in a fourth possible implementation, the processor is used by the user equipment saved according to the memory Determining the status of the user equipment, the method includes: the processor calculating a moving speed of the user equipment according to the last two pieces of position information of the recorded user equipment, comparing the calculated moving speed of the user equipment with the first threshold to determine the user The status of the device.

With reference to the second aspect or the first to fourth possible implementation manners of the second aspect, in a fifth possible implementation, the processor is further configured to: when paging the user equipment for more than a predetermined time, The user equipment is paged in all cells indicated by the location information carried in the paging message received by the device or the paging message received by the device.

With reference to the second aspect, the first to the fifth possible implementation manners of the second aspect, in a sixth possible implementation, the processor is further configured to: when the state of the user equipment is a non-slow state, The non-slow state indicates that the moving speed of the user equipment is not lower than the set second threshold, and the user equipment is paged in all cells to which the device belongs.

In conjunction with the sixth possible implementation of the second aspect, in a seventh possible implementation, the first threshold and the second threshold are the same threshold.

With reference to the second aspect, the first to the seventh possible implementation manners of the second aspect, in the eighth possible implementation, the method further includes: the processor is further configured to: when the user equipment leaves the network, delete the user Location information of the device.

With reference to the second aspect or the first to the eighth possible implementation manners of the second aspect, in a ninth possible implementation manner, the device is a base station control device.

With the above implementation provided by the present invention, the communication system load can be reduced, and the rate of discarding the paging is reduced. DRAWINGS

1 is a flowchart of a method for reducing paging signaling according to an embodiment of the present invention;

2 is a schematic diagram of an apparatus for reducing paging signaling according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an apparatus for reducing paging signaling according to an embodiment of the present invention. detailed description The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It is understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

In an embodiment of the present invention, as shown in FIG. 1, the method includes:

Step S101: The base station control device obtains location information of the user equipment and time information corresponding to the corresponding location information. When the user equipment enters the connection state or leaves the connection state, the base station control device saves the cell information to which the current user equipment belongs, and uses the latitude and longitude of the user equipment as the current location of the user equipment; optionally, the latitude and longitude of the cell center or the cell The latitude and longitude of the antenna of the associated base station is used as the current location information of the user equipment.

The time corresponding to the corresponding location of the user equipment may be the Greenwich Mean Time or the time recording mode of the base station control device, or may be other newly added time recording modes, which may not be limited herein.

The base station control device can be different devices in different types of networks, for example, in a Wideband Code Division Multiple Access (WCDMA) network, which can be a Radio Network Controller (RNC), globally. In the Global System for Mobile Communications (GSM) network, it can be a Base Station Controller (BSC). In a Long Term Evolution (LTE) network, it can be an evolved network base station (E-UTRAN). NodeB, eNodeB), is not limited here.

For example, in a WCDMA network, when the user equipment initiates a RRC (Radio Resource Control) CONNECTION REQUEST message to the RNC and/or the RNC sends a RRC CONNECTION RELEASE message to the user equipment. The radio network controller RNC can identify the cell to which the message belongs, and the RNC can save the corresponding cell identifier (ID, Identity) and the latitude and longitude information of the user equipment. Optionally, the RNC can save the latitude and longitude of the cell center to which the user belongs. Or the base The latitude and longitude information of the antenna of the station and the current time information are saved. Further, if the positioning process occurs when the user equipment is connected to the network, the latitude and longitude information of the user equipment in the location report or the latitude and longitude of the center of the cell to which the user equipment belongs or Longitude and latitude information of the antenna of the base station.

For example, in the LTE network, when the user equipment initiates a radio resource control connection request (RRC CONNECTION REQUEST) message to the eNodeB and/or the eNodeB sends a radio resource control connection release (RRC CONNECTION RELEASE) message to the user equipment, the eNodeB can identify The cell belongs to which cell, and the eNodeB can save the corresponding cell ID and the latitude and longitude of the cell center or the latitude and longitude information of the antenna of the base station, and save the current time information; further, if the user equipment is connected to the network, the positioning occurs. The process can also save the latitude and longitude information in the location report.

For example, in the GSM network, when the user equipment initiates a channel request message (CHANNEL REQUEST) to the BSC and/or the BSC sends a channel release message (CHANNEL RELEASE) to the user equipment, the base station controller (BSC, Base Station Controller) can It is identified that the cell belongs to which cell, and the BSC can save the corresponding cell ID and the latitude and longitude of the cell center or the latitude and longitude information of the antenna of the associated base station, while saving the current time information.

Step S102: The base station control device acquires the identifier information of the user equipment. The user equipment identification can cause the base station control device to uniquely determine the user equipment. It is to be understood that the execution of steps 102 and 101 may not be limited in chronological order.

In the same network or in different networks, the user equipment may be determined by different identification information, which may be, but not limited to, an International Mobile Subscriber Identity (IMSI), Temporary Mobile Subscriber Identity (TMSI, Temporary). Mobile Subscriber Identity), Packet Temporary Mobile Subscriber Identity (P-TMSI, Packet Temporary Mobile Subscriber Identity).

For example, in a WCDMA network, IMSI information can be obtained in a COMON ID message sent by a core network (CN, Core Network). For each user device, RNC can The information of the user equipment is determined by the IMSI information, and the information of the user equipment may include the identification information, the location information of the user equipment, and the corresponding time information. As shown in Table 1, the information of each user equipment may be recorded in the format shown in Table 1. Optionally, after the user equipment leaves the network, for example, the base station control device receives signaling indicating that the user equipment is powered off, or If no message is received from the user equipment, the information of the corresponding user equipment may be deleted, and the period of time may be the time of the periodic update of the user equipment. The information of the user equipment may include time, longitude, and latitude, and may include time and cell ID, and may also include time, longitude, latitude, and cell ID. When the information of the user equipment includes time, longitude, and latitude, the base station control apparatus performs steps S103 and S104. When the information of the user equipment includes the time and the cell ID, the base station control device performs step S103a. When the information of the user equipment includes time, longitude, latitude, and cell ID, the base station control device combines steps S103a, S103, and S104. Alternatively, when the information of the user equipment includes the time and the cell ID, the base station control device performs steps S103 and S104. User device information

Table 1

Step S103: The base station control device calculates a moving speed of the user equipment. The moving speed of the user equipment is calculated according to the location information of the user equipment obtained in step 101 above and the time information corresponding to the corresponding location information. This moving speed is the approximate speed of the user equipment.

The base station control device may calculate the user speed of the user equipment when acquiring the new location information of the user equipment. For example, in WCDMA, the RNC may send the RRC CONNECTION RELEASE when the RNC sends the RRC CONNECTION REELEASE or send the LOCATION to the CN. Calculating the moving speed of the user equipment when REPORT; The base station control device may also calculate the moving speed of the user equipment when receiving the paging message to the user equipment and checking the information record of the user equipment.

The moving speed of the user equipment can be calculated as follows:

Assume that the user device's last two positions are eight and ^ respectively

The latitude and longitude at position A are recorded as lon _gA and lat _A , respectively, and the time is T _A .

The latitude and longitude at position B are recorded as lon _gB and lat _B , respectively, and the time is T _B .

The distance between position A and position B is L _AB .

At time T _n , the moving speed of the user equipment is V _n =LAB /|T _A -T _B | , where η>=1. Among them, the calculation method of LAB can be as follows:

The geographic coordinates of location A are:

X _A =cos(lat _A )*cos(long _A )

Y _A =cos(lat _A )*sin(long _A )

The geographic coordinates of location B are:

X _B =cos(lat _B )*cos(long _B )

Y _B =cos(lat _B )*sin(long _B )

The angle M between positions A and B is:

M=acos(X _A *X _B +Y _A *Y _B +Z _A *Z _B )

Further, the distance L _AB = (M/180) * pi * R between the position A and the position B is obtained, where R is the average radius of the earth 6371 km (KM ). The moving speed of the user equipment can also be calculated as follows: By directly comparing the cell IDs of the last two times, if the cell IDs of the last two times are the same, for example, ID _n and ID _n _i are the same, the moving speed of the user equipment is considered to be 0, and if not, the moving speed is not 0 (ie, Is a value other than "0");

Optionally, if the cell ID recorded by the base station control device is the same as the cell ID recorded last time, for example, ID _n and ID _m ( l<m<n ) are the same, the moving speed of the user equipment is considered to be 0. If it is not the same, the moving speed is not 0 (that is, a value other than "0").

It should be noted that the foregoing calculation method is only an example, and the embodiment of the present invention is not limited thereto. Step S104: The base station control device determines the state of the user equipment according to the calculated moving speed v _n of the user equipment calculated in step S103.

The threshold for setting the "slow state" is V _a , and the threshold for the "non-slow state" is V _b , where V _a and V _b may be the same value or different values, and may be set according to actual needs. The thresholds v _a , v _b can be set according to needs or empirical values. For example, when the moving speed is obtained according to the longitude and latitude, the average speed of the human walking can be used as the threshold of the “slow state”, for example, lm/s, when the obtained latitude and longitude based on the moving speed, set "slow state" threshold V _a is "," non-slow state "threshold V _b is also" 1. "

When ₁₁ < _£1 , the user equipment is considered to be in a "slow state", and the base station control device sets the status identifier of the user equipment to "slow state", and saves the corresponding identifier in the base station control device;

When v _n > v _b , the user equipment is considered to be in a "non-slow state", and the base station control device sets the state identifier of the user equipment to "non-slow state", and saves the corresponding identifier in the base station control device.

The base station control device determines that the state of the user equipment may be performed after each calculation of the moving speed of the user equipment, or may be performed when receiving a paging message to the user equipment and determining that the information of the user equipment is saved. Step S103a, the base station control device directly compares the cell IDs of the last two times. If the cell IDs of the last two times are the same, for example, the ID oID^ is the same, the user equipment is considered to be in a "slow state", the base station The control device sets the status identifier of the user equipment to a "slow state", and saves the corresponding identifier in the base station control device;

Optionally, if the cell ID recorded by the base station control device is the same as the cell ID recorded last time, for example, ID _n and ID _m ( l<m<n ) are the same, the user equipment is considered to be in a "slow state". The base station control device sets the status identifier of the user equipment to a "slow state", and saves the corresponding identifier in the base station control device.

Optionally, if the result of comparing the cell ID is not any of the foregoing, step S103 and S104 may be further performed to determine whether the state of the user equipment is a “slow state”.

The base station control device determines that the state of the user equipment may be performed after obtaining the cell ID each time, or may be performed when receiving a paging message to the user equipment and determining that the information of the user equipment is saved. Step S105: The base station control device pages the user equipment according to the state of the user equipment. When the base station controls the device to page the idle state (IDLE) user equipment, it first searches for the information of the corresponding user equipment according to the user equipment identifier in the paging message. When the status identifier of the user equipment corresponding to the user equipment identifier indicates that the user equipment is in the “slow state”, the base station controls the location information of the user equipment that is recorded last time, that is, the saved latest time information. The user equipment is paged in the determined cell, and further, paging may be performed in the neighboring cell of the cell at the same time, or the paging time is performed in the cell to which the location information of the user equipment recorded last time belongs. After the threshold is exceeded, paging is performed in the neighbor of the cell. Further, the user equipment may be paged in the cell determined by the location information of the user equipment corresponding to the most recently recorded time information. In which cells the specific user equipment is paged, it can be set according to actual needs. If the paging time exceeds the threshold, it can be processed according to the original paging procedure, that is, the base station control device performs paging within the range indicated in the paging message. If the paging range is not indicated in the paging message, paging is performed in all cells managed by the base station control device.

For example, in a WCDMA network, the range indicated by the paging message may be a location area (LAC) or a routing area (RAC), at which time the base station controls all of the cells belonging to the LAC or RAC to page. Optionally, if the record of the user equipment corresponding to the identifier of the user equipment is not found, or if the user equipment is determined to be in a "non-slow state", the base station control device processes according to the original paging process, that is, the base station control device Paging is performed in all cells to which it belongs.

For example, in a WCDMA network, a message for paging a user equipment that is sent by a CN carries paging area information, and the paging area information may be LAC or a router code (RAC), when the RNC is used. Determining that the status identifier of the user equipment is "slow state", and the RNC pages in the cell to which the last recorded user equipment location belongs. If the user equipment status is not in the "slow state", the RNC indicates in the paging area information. Paging in all cells.

For example, in the LTE network, the paging message sent by the CN carries a tracking area list (1 or more tracking areas), and when the status indicator of the user equipment indicates that the user equipment is in a "slow state", eNo de B pages the user equipment in the tracking area to which the last recorded user equipment location belongs. If the status indicator of the user equipment indicates that the user equipment is not in the "slow state", then the eNode B is in the tracking area list. The user equipment is paged in the cell.

For example, in the GSM network, the paging message sent by the CN carries the location area. When the status indicator of the user equipment indicates that the user equipment is in the "slow state", the BSC is located at the location of the last recorded user equipment location. Paging is performed in a cell within the zone, and if the user equipment state is not in a "slow state", the BSC pages in all cells in the location zone.

Using the method for reducing paging signaling in this embodiment, calculating the moving speed of the user equipment by recording the historical location information of the user equipment, and further analyzing the state of the user equipment according to the moving speed of the user equipment, and determining that the user is in a slow state. When the paging range is narrowed, paging-related signaling in the access network is reduced, thereby reducing the load on the system and improving user experience and system performance. In another embodiment of the present invention, an apparatus for reducing paging signaling is provided. The apparatus can control a device. In different networks, a base station controls a device with a different title, for example, in a WCDMA network, a base station. The control device may be an RNC, and may be a BSC in a GSM network, in an LTE network, Can be an eNodeB. As shown in FIG. 2, the apparatus includes: an information unit 201, an analysis unit 202, and a paging unit 203.

An information unit 201, configured to record information of the user equipment,

The information of the user equipment includes location information of the user equipment, time information corresponding to the location information, and identifier information of the user equipment.

When the user equipment enters the connection state or leaves the connection state, the information unit 201 acquires and saves the cell information to which the current user equipment belongs, and uses the latitude and longitude information of the user equipment as the current location information of the user equipment.

Optionally, when the user equipment enters the connection state or leaves the connection state, the information unit 201 acquires and saves the cell information to which the current user equipment belongs, and uses the latitude and longitude of the cell center to which the user equipment belongs or the latitude and longitude of the antenna of the base station to which the cell belongs. The current location information of the user device.

For example, in a WCDMA network, when the user equipment initiates a RRC CONNECTION REQUEST message to the RNC and/or the RNC sends a RRC CONNECTION RELEASE message to the user equipment, the radio network controller ( RNC , Radio Network Controller ) can identify which cell the message belongs to. At this time, the RNC can save the corresponding cell identifier (ID, Identity) and the latitude and longitude of the cell center or the latitude and longitude information of the antenna of the base station, and save the current Time information; Further, if the user equipment has a positioning process when connecting to the network, the latitude and longitude information in the positioning information may also be saved.

For example, in the LTE network, when the user equipment initiates a radio resource control connection request (RRC CONNECTION REQUEST) message to the eNodeB and/or the eNodeB sends a radio resource control connection release (RRC CONNECTION RELEASE) message to the user equipment, the eNodeB can identify The cell belongs to which cell, and the eNodeB can save the corresponding cell ID and the latitude and longitude of the cell center or the latitude and longitude information of the antenna of the base station, and save the current time information; further, if the user equipment is connected to the network, the positioning occurs. The process can also save the latitude and longitude information in the location report. For another example, in the GSM network, when the user equipment initiates a channel request message (CHANNEL REQUEST) to the BSC and/or the BSC sends a message release message (CHANNEL RELEASE) to the user equipment, the base station controller (BSC, Base Station Controller) may It is identified that the cell belongs to which cell, and the BSC can save the corresponding cell ID and the latitude and longitude of the cell center or the latitude and longitude information of the antenna of the associated base station, while saving the current time information.

The information unit 101 is also used to store user equipment identification information. User device identification requires uniquely determining the user device.

In the same network or in different networks, the user equipment identifier may be determined by using different identification information, which may be, but not limited to, an International Mobile Subscriber Identity (IMSI), and a Temporary Mobile Subscriber Identity (TMSI). , Temporary Mobile

Subscriber Identity) , Packet Temporary Mobile Subscriber Identity ( P-TMSI , Packet Temporary

Mobile Subscriber Identity ).

For example, in a WCDMA network, IMSI information can be obtained in a COMSON ID message sent by a core network (CN, Core Network). For each user equipment, the RNC may determine information of the user equipment by using IMSI information, where the information of the user equipment may include identification information of the user equipment, multiple location information of the user equipment, and corresponding time information. As shown in Table 1, each user equipment can be recorded in the format shown in Table 1;

Optionally, after the user equipment leaves the network, for example, the base station control device receives the signaling indicating that the user equipment is powered off, or does not receive any message from the user equipment for a period of time, and may delete the information of the corresponding user equipment. The period of time during which the periodic location of the user equipment can be updated. The information of the user equipment may include time, longitude and latitude, may also include time and cell ID, and may also include time, longitude, latitude and cell ID.

User device information

Time longitude latitude cell ID

Ti longl latl

τ ₂ long2 lat2 ID ₂ 丄丄longn latn ID _n

When the information of the user equipment includes time, longitude and latitude, the analyzing unit 202 is configured to calculate the moving speed of the user equipment according to the information of the user equipment saved by the information unit 201, and determine the state of the user equipment according to the moving speed of the user equipment. When the information of the user equipment includes the time and the cell ID, the analyzing unit 202 can be configured to determine the state of the user equipment according to the information of the user equipment saved by the information unit 201. When the information of the user equipment includes the time and the cell ID, the analyzing unit 202 may also be configured to calculate the moving speed of the user equipment according to the information of the user equipment saved by the information unit 201, and determine the state of the user equipment according to the moving speed of the user equipment.

The analyzing unit 202 may be configured to calculate a user speed of the user equipment when acquiring new location information of the user equipment, where the new location information may include longitude and latitude, or, cell ID, or, longitude, latitude, and cell ID. For example, in WCDMA, the RNC may calculate the moving speed of the user equipment when receiving the RRC CONNECTION REQ message, when the RNC sends the RRC CONNECTION RELEASE, or when sending the LOCATION REPORT to the CN;

The analyzing unit 202 can also be configured to calculate the moving speed of the user equipment when receiving the paging message of the user equipment and checking the information record of the user equipment.

The moving speed of the user equipment can be calculated as follows:

Assume that the user device's last two positions are eight and ^ respectively

The latitude and longitude at position B are recorded as long _B and lat _B , respectively, and the time is T _B .

The distance between the two positions A and B is L _AB .

At time T _n , the moving speed of the user equipment is V _n =LAB/|T _A -T _B | , where η>=1.

The calculation method of L _AB can be as follows:

The geographic coordinates of location A are: XA=cos(latA)*cos(long _A )

YA=cos(latA)*sin(long _A )

The geographic coordinates of the B position are:

XB=cos(latB)*cos(long _B )

YB=cos(latB)*sin(long _B )

The angle M between positions A and B is:

M=acos(X _A *X _B +Y _A *Y _B +Z _A *Z _B )

Further, the distance L _AB = ( M / 180 ) * pi * R between the position A and the position B is obtained, where R is the average radius of the earth 6371 km.

The moving speed of the user equipment can also be calculated as follows:

By directly comparing the cell IDs of the last two times, if the cell IDs of the last two times are the same, for example, ID _n and ID _n _i are the same, the moving speed of the user equipment is considered to be 0, and if not, the moving speed is not 0 (ie, Is a value other than "0");

It should be noted that the foregoing calculation method is only an example, and the embodiment is not limited thereto. The determining the status of the user equipment may include:

The threshold of "slow state" is V _a , and the threshold of "non-slow state" is V _b , where V _a and V _b can be the same value or different values, and can be set according to actual needs, for example, When the moving speed is obtained according to the longitude and latitude, the average speed of the human walking can be used as the threshold of the "slow state", for example, lm/s, and the threshold of the "slow state" is set when the moving speed is obtained according to the longitude and the latitude. _a is "1", The threshold V _{b of the} "non-slow state" is also "1". The speed of the user equipment calculated according to the analysis unit 202 is represented here by V _n .

When V _n <V _a , the user equipment is considered to be in the “slow state”, the analyzing unit 202 sets the state identifier of the user equipment to “slow state”, and saves the corresponding identifier in the analyzing unit 202 ;

When V _n > V _b , the user equipment is considered to be in the “non-slow state”, the state identifier of the user equipment of the analyzing unit 202 is set to “non-slow state”, and the corresponding identifier is saved in the analyzing unit 202 ;

Optionally, the analyzing unit 202 may also directly compare the cell IDs of the last two times. If the cell IDs of the last two times are the same, for example, the ID oID^ is the same, the user equipment is considered to be in the “slow state”, and the base station control device is the user. The status identifier of the device is set to "slow state", and the corresponding identifier is saved in the analyzing unit 202;

Optionally, if the cell ID recorded by the analyzing unit 202 is the same as the cell ID recorded last time, for example, ID _n and ID _m ( l<m<n ) are the same, the user equipment is considered to be in a "slow state". The base station control device sets the status identifier of the user equipment to a "slow state", and saves the corresponding identifier in the analyzing unit 202. The paging unit 203 is configured to page the user equipment according to the status of the user equipment determined by the analyzing unit 202.

When the paging unit 203 pages the user equipment of the idle state (IDLE), it first searches for the information of the corresponding user equipment according to the user equipment identifier in the paging message. When the status identifier of the user equipment corresponding to the user equipment identifier indicates that the user equipment is in the "slow state", the location information of the user equipment corresponding to the most recent time information stored by the paging unit 203 The user equipment is paged in the determined cell, and further, paging may be performed in the neighboring cell of the cell at the same time, or the paging time is performed in the cell to which the location information of the user equipment recorded last time belongs. After the threshold is exceeded, paging is performed in the neighbor of the cell. If the time of the paging exceeds the threshold, the processing may be performed according to the original paging procedure. For the specific paging procedure, refer to the description in the foregoing embodiment, and details are not described herein. If the user setting corresponding to the user device identifier is not found, For the backup record, or to determine that the user equipment is in the "non-slow state", the paging is performed within the range indicated in the paging message according to the original paging procedure. If the paging range is not indicated in the paging message, paging is performed in all cells managed by the base station control device.

For example, in a WCDMA network, the range indicated by the paging message may be a location area (LAC) or a routing area (RAC), at which time paging unit 203 pages in all cells belonging to the LAC or RAC. For example, in a WCDMA network, a message sent by a CN to a user equipment carries paging area information. When the RNC determines that the status identifier of the user equipment is "slow state", the RNC records the user equipment location recorded last time. Paging in the designated cell to which it belongs. If the user equipment status is not in the "slow state", the RNC pages in all cells specified in the paging area.

Using the device for reducing paging signaling of the embodiment, calculating the moving speed of the user equipment by recording the historical location information of the user equipment, and further analyzing the state of the user equipment according to the moving speed of the user equipment, and determining that the user is in a slow state. When the paging range is narrowed, paging-related signaling in the access network is reduced, thereby reducing the load on the system and improving user experience and system performance.

In another embodiment of the present invention, there is provided an apparatus for reducing paging signaling, which apparatus can control a device, and in different networks, a base station controls a device with a different title, such as in WCDMA. In the network, the base station control device may be an RNC, may be a BSC in a GSM network, or may be an eNodeB in an LTE network. As shown in FIG. 3, the apparatus includes: a receiver 301, a processor 302, and a memory 303.

The receiver 301 is configured to receive information about the user equipment, and save the information of the user equipment in the memory 303.

When the user equipment enters the connection state or leaves the connection state, the receiver 301 acquires the cell information to which the current user equipment belongs and stores it in the memory 303, and uses the latitude and longitude of the user equipment as the current location information of the user equipment;

Optionally, when the user equipment enters the connection state or leaves the connection state, the receiver 301 acquires the cell information to which the current user equipment belongs and stores the information in the memory 303, and uses the latitude and longitude of the cell center to which the user equipment belongs or the base station to which the cell belongs. The latitude and longitude of the antenna is used as the current location information of the user equipment.

Among them, the receiver 301 can belong to different devices in different networks. For example, in a WCDMA network, the receiver 301 can belong to the RNC, and can be subordinate to the BSC in the GSM network. In the LTE network, the eNodeB can be classified as an eNodeB, which is not limited herein.

For example, in the LTE network, when the user equipment initiates a radio resource control connection request (RRC CONNECTION REQUEST) message to the eNodeB and/or the eNodeB sends a radio resource control connection release (RRC CONNECTION RELEASE) message to the user equipment, the eNodeB can identify The The cell belongs to which cell, and the eNodeB can save the corresponding cell ID and the latitude and longitude of the cell center or the latitude and longitude information of the antenna of the base station, and save the current time information. Further, if the user equipment is connected to the network, the positioning process occurs. , you can also save the latitude and longitude information in the location report.

For another example, in a GSM network, when a user equipment initiates a channel request message to the BSC (CHANNEL)

When the REQUEST and/or the BSC sends a message to the user equipment (CHANNEL RELEASE), the base station controller (BSC) can identify which cell the message belongs to, and the BSC can save the corresponding cell ID and The latitude and longitude of the cell center or the latitude and longitude information of the antenna of the associated base station, while saving the current time information.

The receiver 301 is further configured to acquire identification information of the user equipment and save it in the memory 303. The identification of the user device requires unique identification of the user device.

In the same network or in different networks, the user equipment identifier may be determined by using different identification information, which may be, but not limited to, an International Mobile Subscriber Identity (IMSI), and a Temporary Mobile Subscriber Identity (TMSI). , Temporary Mobile Subscriber Identity), Packet Temporary Mobile Subscriber Identity (P-TMSI, Packet Temporary Mobile Subscriber Identity).

For example, in a WCDMA network, the IMSI information can be obtained by sending a COMID ID message to the core network (CN, Core Network). For each user equipment, the RNC may determine information of the user equipment by using the IMSI information, where the information of the user equipment may include identification information of the user equipment, location information of the user equipment, and corresponding time information. As shown in Table 1, each user equipment can be recorded in the format shown in Table 1. Optionally, after the user equipment leaves the network, for example, the base station control device receives signaling indicating that the user equipment is powered off, or for a period of time. The user does not receive any message from the user equipment, and the information of the corresponding user equipment may be deleted. The period of time may be the time when the periodic location of the user equipment is updated. The information of the user equipment may include time, longitude, and latitude, and may include time and cell ID, and may also include time, longitude, latitude, and cell ID. User device information

When the information of the user equipment includes time, longitude and latitude, the processor 302 is configured to calculate the moving speed of the user equipment according to the information of the user equipment saved by the memory 303, and determine the state of the user equipment according to the moving speed of the user equipment. When the information of the user equipment includes the time and the cell ID, the processor 302 may be configured to determine the status of the user equipment according to the information of the user equipment saved by the memory 303. When the information of the user equipment includes the time and the cell ID, the processor 302 may also be configured to calculate the moving speed of the user equipment according to the information of the user equipment saved by the memory 303, and determine the state of the user equipment according to the moving speed of the user equipment.

The processor 302 may be configured to calculate a user speed of the user equipment when acquiring new location information of the user equipment, where the new location information may include longitude and latitude, or, cell ID, or, longitude, latitude, and cell ID. For example, in WCDMA, the processor in the RNC can calculate the moving speed of the user equipment when receiving the RRC CONNECTION REQ message, when the RNC sends the RRC CONNECTION RELEASE or when sending the LOCATION REPORT to the CN;

The processor 302 can also be configured to calculate the moving speed of the user equipment when receiving the paging message of the user equipment and checking the information record of the user equipment.

The moving speed of the user equipment can be calculated as follows:

The last two locations of the user equipment are A and B, respectively.

The latitude and longitude at position B are recorded as lon _gB and lat _B , respectively, and the time is Τ _Β ,

The distance between the two positions A and B is L _AB . At time T _n , the moving speed of the user equipment is V _n =LAB/|T _A -T _B | , where η>=1.

The calculation method of L _AB can be as follows:

The geographic coordinates of location A are:

X _A =cos(latA)*cos(long _A )

YA=cos(latA)*sin(long _A )

The geographic coordinates of the B position are:

X _B =cos(latB)*cos(long _B )

YB=cos(latB)*sin(long _B )

The angle M between positions A and B is:

M=acos(X _A *X _B +Y _A *Y _B +Z _A *Z _B )

The moving speed of the user equipment can also be calculated as follows:

Optionally, if the processor determines that the stored cell ID of the last record is the same as the cell ID recorded last time, for example, ID _n and ID _m ( Km<n ) are the same, the moving speed of the user equipment is considered to be 0, if not the same, the moving speed is not 0 (that is, a value other than "0").

It should be noted that the foregoing calculation method is only an example, and the embodiment is not limited thereto. The method for determining the status of the user equipment may include: The threshold of "slow state" is V _a , and the threshold of "non-slow state" is V _b , where V _a and V _b can be the same value or different values, and can be set according to actual needs, for example, When the moving speed is obtained according to the longitude and latitude, the average speed of the human walking can be used as the threshold of the "slow state", for example, lm/s, and the threshold of the "slow state" is set when the moving speed is obtained according to the longitude and the latitude. _The threshold V _{b of} _a is "1" and "non-slow state" is also "1". The user equipment speed calculated according to the processor 302 is set to V _n ,

When ₁₁ < _£1 , the user equipment is considered to be in the "slow state", the processor 302 will set the status identifier of the user equipment to "slow state", and save the corresponding identifier in the memory 303;

When V _n >V _b , the user equipment is considered to be in a "non-slow state", the processor 302 will set the state identifier of the user equipment to "non-slow state", and save the corresponding identifier in the memory 303;

Optionally, the processor may also directly compare the cell IDs of the last two times. If the cell IDs of the last two times are the same, for example, the ID oID^ is the same, the user equipment is considered to be in a "slow state", and the processor will be the user equipment. The status identifier is set to "slow state", and the corresponding identifier is saved in the memory; optionally, if the processor determines that the cell ID of the last record is the same as the cell ID recorded last time, such as ID _n and If the ID _m ( l<m<n ) is the same, the user equipment is considered to be in the "slow state", and the processor sets the state identifier of the user equipment to "slow state", and saves the corresponding identifier in the memory. The processor 302 is further configured to page the user equipment according to the identity status of the user equipment saved by the memory 303.

When the receiver 301 receives the paging of the user equipment in the idle state (IDLE), it first searches for the information of the corresponding user equipment according to the user equipment identifier in the paging message. When the status identifier of the user equipment corresponding to the user equipment identifier indicates that the user equipment is in the “man speed state”, the processor 302 determines the location information of the user equipment corresponding to the latest time information saved in the last record. The user equipment is paged in the cell, and further, paging may be performed in the neighboring cell of the cell at the same time, or the paging time in the cell to which the location information of the user equipment recorded last time belongs exceeds After the threshold, paging is performed in the neighbor of the cell. If the paging time exceeds the threshold, it can be processed according to the original paging procedure, that is, paging is performed in all cells. If the record of the user equipment corresponding to the user equipment identifier is not found, or if the user equipment is determined to be in a "non-slow state", the processor 302 processes according to the original paging procedure. For example, in a WCDMA network, a message for paging a user equipment carried by a CN carries area area information. When the RNC determines that the status identifier of the user equipment is "slow state", the RNC records the user equipment location recorded last time. Paging in the designated cell, if the user equipment status is not in the "slow state", then the RNC pages in all cells specified by the paging area.

Using the device for reducing paging signaling of the embodiment, calculating the moving speed of the user equipment by recording the historical location information of the user equipment, and further analyzing the state of the user equipment according to the moving speed of the user equipment, and determining that the user is in a slow state. When the paging range is narrowed, paging-related signaling in the access network is reduced, thereby reducing the load on the system and improving user experience and system performance. Through the description of the above embodiments, it will be apparent to those skilled in the art that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes computer storage media and communication A medium, wherein the communication medium includes any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. By way of example and not limitation, computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media. Various changes and modifications can be made to the invention without departing from the scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A method for reducing paging signaling, comprising:

The base station control device obtains and records the information of the user equipment, where the information of the user equipment includes the location information of the user equipment and the time information and the identifier information corresponding to the location information, where the location information of the user equipment is used to determine the location of the user equipment. The identifier information is used by the base station control device to uniquely determine the user equipment;

The base station control device determines the state of the user equipment according to the information of the user equipment; if the state of the user equipment is a slow state, the slow state indicates that the moving speed of the user equipment is lower than the set first threshold,

Then, the base station control device pages the user equipment in the cell determined by the location information of the user equipment corresponding to the saved latest time information.

2. The method according to claim 1, further comprising:

If the state of the user equipment is a slow state, the base station control device pages the user equipment in a neighboring cell of the cell determined by the location information of the user equipment corresponding to the saved latest time information.

The method according to claim 1 or 2, wherein the base station control device obtains and records information of the user equipment, including:

When the user equipment enters the connection state or leaves the connection state, the base station controls the device to acquire and record the longitude and latitude of the user equipment as the location of the user equipment.

When the user equipment enters the connection state or leaves the connection state, the base station control device acquires and records the longitude and latitude of the cell center where the user equipment is located, or the longitude and latitude of the antenna of the base station to which the cell belongs, or the cell identifier of the cell where the user equipment is located. Symbol, as the location of the user device.

The method according to any one of claims 1 to 4, wherein the determining, by the base station control device, the status of the user equipment according to the information of the user equipment, The base station control device calculates the moving speed of the user equipment according to the recorded location information of the user equipment twice, and compares the calculated moving speed of the user equipment with the first threshold to determine the state of the user equipment.

The method according to any one of claims 1 to 5, characterized in that:

If the base station control device pages the user equipment for more than a predetermined time,

Then, the base station control device performs paging in all cells indicated by the location information carried in all the cells it manages or the paging message received by the device.

7. The method according to claim 1, further comprising:

If the state of the user equipment is a non-slow state, the non-slow state indicates that the moving speed of the user equipment is not lower than the set second threshold, and the base station controls the device to receive in all cells or devices that it manages. Paging the user equipment in all cells indicated by the location information carried in the paging message.

8. The method of any of claims 7 wherein:

The first threshold and the second threshold are the same threshold.

The method according to any one of claims 1 to 8, further comprising: after the user equipment leaves the network, the base station controls the device to delete the information of the user equipment.

10. An apparatus for reducing paging signaling, comprising:

Receiver, processor, and memory,

The receiver is configured to acquire information about the user equipment.

The information of the user equipment includes location information of the user equipment and time information and identification information corresponding to the location information, where

The location information of the user equipment is used to determine the location of the user equipment,

The identifier information is used by the base station control device to uniquely determine the user equipment; the storage device is configured to store information of the user equipment acquired by the receiver;

The processor is configured to determine a state of the user equipment according to information about the user equipment saved by the memory, and if the state of the user equipment is a slow state, correspond to the saved latest time information. The user equipment is paged in the cell determined by the location information of the user equipment, where the slow state indicates that the moving speed of the user equipment is lower than the set first threshold.

The device according to claim 10, further comprising:

The processor is further configured to: when determining that the state of the user equipment is a slow state, paging the user equipment in a neighboring cell of the cell determined by the location information of the user equipment corresponding to the saved latest time information. .

12. Apparatus according to claim 10 or claim 11 wherein:

The location information of the user equipment includes the longitude and latitude of the user equipment acquired by the receiver when the user equipment enters the connection state or leaves the connection state.

13. Apparatus according to claim 10 or claim 11 wherein:

The location information of the user equipment includes the longitude and latitude of the cell center where the user equipment is located or the longitude and latitude of the antenna of the base station to which the cell belongs, when the user equipment enters the connection state or leaves the connection state, or the user The cell identifier of the cell in which the device is located.

The device according to any one of claims 10 to 13, wherein the determining, by the processor, the state of the user equipment according to the information of the user equipment saved by the memory, comprises: The location information of the user equipment is calculated twice by the latest location information of the user equipment, and the calculated moving speed of the user equipment and the first threshold are compared to determine the state of the user equipment.

15. Apparatus according to any one of claims 10 to 14, wherein

The processor is further configured to: when paging the user equipment for more than a predetermined time, page the all the cells indicated by the location information carried in the paging message received by the device or the paging message received by the device User equipment.

16. Apparatus according to any one of claims 10 to 15 wherein:

The processor is further configured to: when the state of the user equipment is a non-slow state, the non-slow state indicates that the moving speed of the user equipment is not lower than a set second threshold,

The user equipment is then paged in all cells to which the device belongs.

17. Apparatus according to any of claims 16 wherein:

The first threshold and the second threshold are the same threshold.

The device according to any one of claims 10 to 17, further comprising: the processor is further configured to delete location information of the user equipment when the user equipment leaves the network.

The apparatus according to any one of claims 10 to 18, wherein the apparatus is a base station control device.