WO2011029338A1

WO2011029338A1 - Method and device for detecting home node b

Info

Publication number: WO2011029338A1
Application number: PCT/CN2010/074615
Authority: WO
Inventors: 张文英
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-09
Filing date: 2010-06-28
Publication date: 2011-03-17
Also published as: CN102026327A

Abstract

A method and device for detecting a Home Node B (HNB) are provided, the method comprises that: a User Equipment (UE) obtains the geographical location information of a HNB; the UE obtains its own geographical location information, and compares the information with the geographical location information of the HNB saved in the UE, if matches, the UE resides in the HNB corresponding to the geographical location information.

Description

Method and device for discovering home node B

The present invention relates to the field of communication technologies, and more particularly to a method and apparatus for discovering a home node B. Background technique

Home Node B (HNB, Home Node B) is installed in the home and is huge in number and can be powered on and off at any time. In network planning, HNB provides high-speed download services for families to ensure business continuity.

Due to the high-speed nature of the HNB, users access the HNB preferentially when they reach the HNB coverage area. How to discover HNB, there are currently two ways to realize the discovery of HNB: One of them is the automatic mode, that is, when cell selection and reselection are performed periodically, the HNB cell is preferentially selected as the camping cell; the other is the artificial mode. That is, when reaching the HNB coverage area, it is artificially switched to the HNB coverage area.

The above two methods for discovering HNB each have their own drawbacks. Among them, the manual mode requires manual intervention, which makes the actual use very inconvenient. In the automatic mode, since the user does not know when to enter the HNB coverage area, there is a problem that the HNB cell is found to be inaccurate. Therefore, the existing home node B discovery method needs to be improved. Summary of the invention

In view of the above background, the present invention provides a method and apparatus for discovering a home node B, which can automatically and accurately discover a home node B.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A method for discovering a home node B includes the following steps:

A. The user equipment acquires geographic location information of the home node B.

B. The user equipment obtains its current geographical location information in real time, and the geographic position of the home node B The information is compared for comparison, and when the matching is compared, the home node B cell corresponding to the geographical location information is camped.

Before the step A, the method further includes: initializing, by the user equipment;

In the initialization process, the user equipment acquires the geographic location information of the home node B that is desired to reside by using the positioning system, and binds the geographic location information of the home node B with the home node B information to save the bound family. Geographical location information of Node B and home Node B information.

The match is a clear match, or a fuzzy match.

The user equipment also stores cell system information of the home node B, and the user equipment camps with the home node B through the system information.

The system information includes an uplink and downlink frequency point, a physical cell identifier ID, a layer 3 cell ID, and a home node B ID.

The geographical location information comparison in the step B is performed by setting a timer period.

The timer is stopped when the user equipment is in the home node B service area, and is started when the user equipment is not in the home node B service area.

A discovery device for a home node B, comprising:

a geographic location information comparison module, configured to obtain geographic location information of the home node B; and obtain real-time geographic location information of the user equipment in real time, and compare the geographic location information of the home node B;

The home node B camping module is configured to: according to the comparison result of the geographic location information comparison module, when the comparison is matched, the user equipment is camped on the home node B corresponding to the geographic location information.

The home node B resident module stores the cell system information of the home node B, and the user equipment camps with the home node B through the system information.

The geographic location information comparison module includes a timer for performing periodic comparison of geographic location information.

The timer stops when the user equipment is in the home node B service area, where the user equipment Starts when not in the home node B service area.

The geographic location information obtaining module is further configured to acquire and save geographical location information of multiple home nodes B. The user equipment is contracted with at least one home node B.

Compared with the prior art, the present invention obtains and stores the geographical location information of the home node B, and compares the current location of the home node with the saved geographic location of the home node B in real time by the user equipment, and matches the corresponding home node when matching. B is resident. Thereby, the discovery process of the home node B is completed automatically and accurately. DRAWINGS

1 is a flow chart of an embodiment of an initialization process of a user equipment of the present invention;

2 is a flowchart of an embodiment of a home node B discovery process of a user equipment according to the present invention; and FIG. 3 is a schematic structural diagram of an embodiment of a home node B discovery apparatus of the present invention. detailed description

The invention will be described in detail below with reference to the drawings and specific embodiments.

The present invention is mainly used for a user equipment (UE, User Equipment) of a mobile communication system, and the inventive concept is: binding an HNB cell (a coverage area of a HNB node whose specific coverage is related to the power of the HNB node) and its geographical location information When the current geographic location of the UE matches the geographic location information of the bonded cell, the HNB discovery process is performed. After the downlink synchronization with the cell is performed, the system broadcast information is read, and the system information block (SIB9) is matched. In the specific implementation manner of the present invention, the discovery process of the HNB mainly includes two processes: an initialization process of the UE and an HNB discovery process of the UE.

The initialization process of the UE is used to obtain geographic location information of the HNB cell and store it in the user equipment.

The HNB discovery process of the UE is configured to: when the UE is not in the HNB cell, find that the current geographic location information matches the geographical location information of the bound HNB cell, and perform an HNB cell search process; If the UE is already in the HNB cell (the UE has successfully camped on the HNB cell;), the process is ignored.

The geographic location information includes the current geographic location information of the UE, and the geographical location information of the bound HNB cell, which can be obtained through a Global Position System (GPS). GPS is a global positioning system in the United States. It uses satellite signals to obtain geographic location information such as latitude, longitude, altitude, and speed. Similar to this technology, China's Beidou system and the Russian Venus system.

It should be noted that the HNB is conceptually a point, but physically refers to the service coverage area of the base station configured by the HNB, which is called an HNB service area or an HNB cell. However, since the geographical location information is usually a geographical location information such as a latitude and longitude of a point, the geographical location information of the HNB in this document may be the geographical location information of the location where the base station is configured by the HNB, or may be any point near the location of the base station. Geographic location information, or geographic location information of multiple points in different directions at the edge of the HNB cell. When the geographical location information is matched, an exact match may be adopted, that is, the current geographical location information of the UE is completely matched (or called) with the geographical location information of the HNB cell, and the fuzzy matching, that is, the current geographical location information of the UE may also be used. Within a certain deviation of the geographical location information of the HNB cell, for example, when the current geographic location information of the UE is in a circular area with a certain radius (for example, 10 meters) centered on the geographical location information of the HNB cell, the current UE is considered to be present. The geographical location information matches the geographic location information of the HNB cell. When the geographic location of the HNB cell is set to the geographic location of the base station or the geographic location of the base station, since the base station is generally located in the cell center, only one point of geographic location information may be set, the amount of stored information is small, and the matching operation is simple. When the geographic location of the HNB cell is set to a point of the cell edge, it is generally required to set multiple points in different directions to adapt to the possibility that the user enters the HNB cell from different directions, and the manner of selecting such geographic location information, though The amount of information is large, and the matching operation is complicated. However, when the user enters the HNB cell, the user is found to have entered, so that the user can camp on the HNB cell earlier. 1 is a flowchart of an embodiment of an initialization process of a user equipment according to the present invention. As shown in FIG. 1, specific steps include:

Step 100: The UE is powered on and works normally.

Step 101: The UE acquires geographical location information of the HNB cell that is to be camped on. The geographic location information is obtained by the GPS module in the UE, and similarly, it can also be obtained using the Beidou system or the Venus system.

Step 102: Obtain system information of an HNB cell that is to be camped on. The system information includes layer 3 cell identifier (ID, Identity), physical cell ID, uplink and downlink frequency, and home node B ID (HNB ID).

Step 103: Bind the geographic location information of the HNB cell to the cell system information of the HNB, store the information in the memory of the UE, and complete the initialization.

It should be noted that the binding is to associate the geographical location information of the HNB cell with the home node B information, and the home node B information may be the name of the home node B, or one or more of the system information in the above example. Kind. For example, the geographic location information of the HNB cell is bound to its home node B ID.

2 is a flowchart of an embodiment of a home node B discovery process of a user equipment according to the present invention. As shown in FIG. 2, the HNB discovery process of the UE includes:

Step 200: The UE system is powered on and works normally.

Step 201: Read geographic location information of the bound HNB cell.

Step 202: Obtain the current geographic location information of the UE, and compare whether the geographical location information of the bound HNB cell matches, to determine whether the UE is in the HNB cell. The match indicates that the UE is in the HNB cell, otherwise the UE is not in the HNB cell. When the UE is in the HNB cell, the process proceeds to step 206, otherwise, the process proceeds to step 203.

Step 203: Start a comparison timer, where the comparison timer is used to periodically compare the real-time geographic location information of the UE with the geographical location information of the bound HNB cell, that is, the comparison timer is super When the time (time is up), the comparison between the real-time geographic location information of the UE and the geographical location information of the bound HNB cell is performed.

Steps 204 to 205: The comparison timer expires, and the real-time geographic location information of the UE is compared with the geographical location information of the bound HNB cell. If yes, the process proceeds to step 206. Otherwise, the comparison timer is reset and the process returns to step 204 to wait for comparison. The next timeout of the timer.

Step 206: Perform a search process of the HNB cell to obtain system information of the HNB cell. As described above, the system information of the HNB cell can be obtained in the initialization process, and stored in the memory of the UE together with the geographical location information of the HNB cell, so that only the downlink pass is required in the cell search in this step. That is, by pre-storing the system information of the HNB cell in the UE, the cell search process can be accelerated. Of course, if the process of acquiring and saving the system information is not performed during the initialization process, the cell search needs to be comprehensively performed to obtain all the required system information. Step 207: Obtain the system information of the HNB cell and perform HNB cell camping. When camping, whether to camp or not depends on whether the HNB cell belongs to the HNB cell to which the UE belongs. The UE can sign up for multiple HNB cells, and generally only sign one. The subscribed HNB cell is the HNB cell to which the UE belongs. When camping, the UE judges according to the subscription information (for example, HNBID). If it is determined that the HNB cell is not its own subscription cell, Then, no camping is performed; if it is judged to be its own contracted cell, it stays.

Step 208: The HNB cell camps successfully, and stops the comparison timer.

Step 209 to step 210, when the UE leaves the HNB cell, restart the comparison timer. At this time, it can be determined that the UE has left the HNB cell according to the d and the area handover, so that the comparison timer starts to work, and the periodic comparison of the current geographic location information of the UE with the geographical location information of the bound HNB cell is performed.

3 is a schematic structural diagram of an embodiment of a home node B discovery apparatus according to the present invention, as shown in FIG. 3, including: a geographic location information comparison module, configured to obtain geographic location information of the home node B; and obtain real-time geographic location information of the user equipment in real time, and compare with the geographic location information of the home node B;

The home node B resident module can save the system information of the home node B, thereby adding the cell search process when the user equipment camps to the home node B.

The geographic location information obtaining module can acquire and save geographical location information of multiple home nodes B; the user equipment can sign with one or more home nodes B, and when camping, choose to only camp with the contracted home node B.

The invention solves the problem that the UE discovers the inaccuracy and cumbersomeness of the HNB cell, and discovers the home node B in time and accurately by performing real-time comparison between the current geographic location of the UE and the bound HNB 'J and the geographical location of the zone. All discovery processes are performed automatically, without manual intervention, which significantly improves the user experience and enables users to use the network to meet the operator's expectations. By automatically and accurately discovering and camping on the HNB cell, the network load is reasonably allocated for the operator. Saves network costs. However, this is only an example for ease of understanding, and the specific implementation of the present invention should not be construed as being limited to the description. It is to be understood by those skilled in the art that various changes and substitutions may be made without departing from the spirit and scope of the invention.

Claims

Claim

A method for discovering a home node B, comprising the steps of:

B. The user equipment obtains its current geographical location information in real time, and compares it with the geographical location information of the home node B. When comparing the matches, the home node B cell corresponding to the geographical location information is camped.

The discovery method according to claim 1, wherein the step A further comprises: initializing by the user equipment;

3. Discovery method according to claim 1 or 2, characterized in that the matching is an exact match, or a fuzzy match.

The discovery method according to claim 1 or 2, wherein the user equipment further stores cell system information of the home node B, and the user equipment camps with the home node B by using the system information. .

The discovery method according to claim 4, wherein the system information comprises an uplink and downlink frequency point, a physical cell identification ID, a layer 3 cell ID, and a home node B ID.

The discovery method according to claim 1 or 2, characterized in that the geographical location information comparison in the step B is performed by setting a timer period.

The discovery method according to claim 6, wherein the timer is stopped when the user equipment is in the home node B service area, and is started when the user equipment is not in the home node B service area.

8. A device for discovering a home node B, comprising:

a geographic location information comparison module, configured to obtain geographic location information of the home node B; Obtaining the current geographic location information of the user equipment in real time, and comparing with the geographic location information of the home node B;

The discovery device according to claim 8, wherein the home node B resident module stores cell system information of the home node B, and the user equipment camps on the home node B through the system information.

The discovery device according to claim 8, wherein the geographic location information comparison module includes a timer for performing periodic comparison of geographic location information.

The discovery device according to claim 10, wherein the timer is stopped when the user equipment is in the home node B service area, and is started when the user equipment is not in the home node B service area.

The discovery device according to any one of claims 8 to 11, wherein the geographic location information acquisition module is further configured to acquire and store geographical location information of multiple home nodes B; Signed with at least one home node B.