WO2010048844A1

WO2010048844A1 - Method, device and system for distributing cell physical layer identity

Info

Publication number: WO2010048844A1
Application number: PCT/CN2009/074172
Authority: WO
Inventors: 亨利克·奥勒夫松; 王学龙; 杨利; 石小丽
Original assignee: 华为技术有限公司
Priority date: 2008-10-31
Filing date: 2009-09-24
Publication date: 2010-05-06

Abstract

A method, device and system for distributing cell physical layer identity are disclosed in the embodiments of the present invention, the method could include the following steps of: receiving an indication message which includes the information of the conflict source cell causing the conflict among cell physical layer identities; obtaining the available cell physical layer identity for the conflict source cell according to the indication message. Accordingly, a method for detecting the conflict among cell physical layer identities and a device and a network system used for the method for distributing cell physical layer identity are also disclosed in the embodiments of the present invention. By applying the method, device and network system provided in the embodiments of the present invention, the problem of the conflict among cell physical layer identities can be solved.

Description

Method, device and system for allocating a physical layer identifier of a cell The present application claims to be submitted to the Chinese Patent Office on October 31, 2008, the application number is 200810218812.8, and the invention is entitled "Method, Base Station and System for Assigning Physical Layer Identification of a Cell" and in 2008 Priority of two Chinese patent applications filed by the Chinese Patent Office, Application No. 200810176243.5, entitled "Methods, Devices and Systems for Assigning Physical Layer Marks of the Community", January 1, 2013, the entire contents of which are incorporated herein by reference. In the application. Technical field

The embodiments of the present invention relate to the field of communications, and in particular, to a method, device, and system for allocating a physical layer identifier of a cell in a communication network. Background technique

With the advancement of communication technology, the network is developing towards a highly intelligent and autonomous SON (Self Optimized Network). The NGMN (Next Generation Mobile Network) organization puts forward the need for SON in its white paper: The next generation of mobile networks should be highly intelligent, with good refactoring, scalability, self-organization, and use. To meet the communication needs of different environments and different customers. The functionality of the traditional OAM (Operation Administration and Maintenance) system should be considered part of SON to minimize manual intervention.

At present, network planning is planned and configured in advance by the network. However, since the real network environment cannot be accurately defined, manual planning generally leads to conflicts of resources planned between certain cells. For example, A PCI (Physical Cell Identity) conflict may occur between neighboring cells. Such PCI conflicts often result in users not being able to switch signals to the best cell when using the network, resulting in degradation of communication quality and affecting the performance of the entire network, which is inconvenient for operators and users. Summary of the invention

The embodiment of the invention provides a method, a device and a system for allocating a physical layer identifier of a cell, so as to solve the conflict problem of the physical layer identifier of the cell.

In one aspect, a method for allocating a physical layer identifier of a cell according to an embodiment of the present invention includes: receiving an indication message, where the indication message includes information of a conflicting source cell that causes a cell physical layer identifier conflict;

Obtaining an available cell physical layer identifier for the conflicting source cell according to the indication message.

On the other hand, a method for detecting a cell physical layer identifier conflict provided by an embodiment of the present invention includes:

The detecting device determines the conflicting source cell according to the cell information that uses the same cell physical layer identifier; the detecting device sends an indication message to the first base station to which the conflicting source cell belongs, and the indication message includes information of the conflicting source cell.

On the other hand, the base station provided by the embodiment of the present invention includes:

a receiving unit, configured to receive an indication message, where the indication message includes information of a conflicting source cell that causes a cell physical layer identifier conflict;

And an acquiring unit, configured to acquire, after the receiving unit receives the indication message, an available cell physical layer identifier for the conflicting source cell according to the indication message.

On the other hand, the detecting device provided by the embodiment of the present invention includes:

a detecting unit, configured to determine a conflict source cell according to cell information that uses the same cell physical layer identifier;

And an indication unit, configured to send, after the detecting unit determines the conflicting source cell, an indication message to the first base station to which the conflicting source cell belongs, where the indication message includes information of the conflicting source cell.

On the other hand, the network system provided by the embodiment of the present invention includes:

a detecting device, configured to determine a conflicting source cell according to the cell information that uses the same cell physical layer identifier, and send the indication message to the first base station to which the conflicting source cell belongs, where the indication message includes information of the conflicting source cell; The first base station is configured to receive an indication message sent by the detecting device, and obtain an available cell physical layer identifier for the conflicting source cell according to the indication message.

a second base station, configured to send, to the operation management and maintenance OAM, a message including cell information that uses the same cell physical layer identifier;

The OAM is configured to send an indication message to the first base station after determining the conflicting source cell according to the cell information that is identified by using the physical layer of the same cell, where the indication message includes information of the conflicting source cell, and the first base station is configured to receive the OAM transmission. And indicating the message, and acquiring an available cell physical layer identifier for the conflicting source cell according to the indication message.

The embodiment of the present invention receives the indication message of the conflicting source cell information that causes the cell physical layer identifier conflict, and obtains the available cell physical layer identifier for the conflict source cell according to the indication message, so that the network can automatically allocate the cell physical layer identifier, thereby solving the cell. Conflicts in the physical layer identification. DRAWINGS

1 is a schematic flow chart of a method for allocating a physical layer identifier of a cell according to an embodiment of the present invention;

2 is a schematic flowchart of a method for detecting a physical layer identifier conflict of a cell according to an embodiment of the present invention;

3 is a schematic flow chart of another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention;

4 is a schematic flowchart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention;

FIG. 5 is a schematic flowchart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention; FIG.

FIG. 6 is a flowchart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention; Schematic diagram

FIG. 7 is a schematic flowchart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention; FIG.

FIG. 8 is a schematic flowchart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention; FIG.

FIG. 9 is a schematic flowchart of another method for detecting a cell physical layer identifier conflict according to another embodiment of the present invention; FIG.

FIG. 10 is a schematic flowchart of a method for allocating a physical layer identifier of a cell according to another embodiment of the present invention; FIG.

11 is a schematic flowchart of another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a network system according to an embodiment of the present invention; FIG.

FIG. 13 is another schematic structural diagram of a network system according to another embodiment of the present invention. detailed description

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

In the embodiment of the present invention, the conflicting source cell may be a cell in an LTE (Long Term Evolution) communication system, where the identity of the cell is a physical cell identifier PCI, or may be a cell in another system, such as WCDMA. ( Wideband Code Division

Multiple Access, a wideband code division multiple access) cell in a communication system. At this time, the identity of the cell is a scrambling code. In the embodiment of the present invention, the identifiers of the cells are collectively referred to as the physical layer identification of the cell. For the convenience of description, the cell identifier PCI in the LTE is used as an example in the embodiment of the present invention, and the working processes of other communication systems are similar.

FIG. 1 is a schematic flowchart of a method for allocating a physical layer identifier of a cell according to an embodiment of the present invention. As shown in FIG. 1, the method may include the following. S101. Receive an indication message, where the indication message includes conflict source cell information that causes a cell physical layer identifier conflict.

For example, the conflict source cell information may be an identifier of the conflicting source cell, for example, a PCI or GCI (Global Cell Identity) of the conflict source cell.

S102. Obtain an available cell physical layer identifier for the conflicting source cell according to the indication message.

In the method of the embodiment of the present invention, according to the received conflicting source cell information that includes the cell physical layer identifier conflict, the available cell physical layer identifier, such as a PCI, is used, and the cell physical layer identifier of the conflicting source cell is replaced by the available PCI. The network can automatically allocate the physical layer identifier of the cell to solve the conflict problem of the physical layer identifier of the cell.

FIG. 2 is a schematic flowchart of a method for detecting a physical layer identifier conflict of a cell according to an embodiment of the present invention. As shown in FIG. 2, the method can include the following.

S201. The detecting device determines the conflict source cell according to the cell information that uses the same cell physical layer identifier.

S202. The detecting device sends an indication message to the first base station to which the conflicting source cell belongs, where the indication message includes information of the conflicting source cell.

In this embodiment, the detecting device determines the conflicting source cell information according to the cell information that uses the same cell physical layer identifier, and notifies the base station where the conflicting source cell is located, so that the corresponding base station obtains the cell in the coverage area, causing the cell physical layer identifier conflict. And solving the conflict problem of the physical layer identifier of the cell according to the obtained information.

The embodiments of the present invention are preferably applicable to an OAM system, where the OAM is a layered system, and may include an NMS (Network Management System) and an EMS (Element Management System), where the EMS The interface with the NMS is the standard Itf-N (Northbound Interface). Among them, NMS mainly completes the NML (Network Management Layer) function in the ITU management network, and provides network-oriented operation management functions. EMS mainly completes EML in the ITU management network (Element Management Layer) The function of completing the device-oriented operation and maintenance function. In the Itf-N interface, some IRP (Integration Reference Point) are defined, such as basic configuration management IRP, batch configuration management IRP, and notification IRP. Through the functions provided by these integrated reference points, the operation and maintenance functions for the network can be completed. The NMS and the network element (for example, the network element may be a base station in the embodiment of the present invention) may communicate through the northbound interface. In this case, the EMS may be embedded in the network element, or the NMS communicates with the network element through the EMS.

In the various embodiments enumerated in the present invention, when the detecting device is located in the OAM, specifically, it can be detected by the NMS or EMS.

For example, if a cell using the same PCI is within the jurisdiction of the same EMS or NMS, the conflicting source cell can be determined by the EMS or NMS.

If the cell using the same PCI is within the jurisdiction of the same NMS, but within the jurisdiction of multiple EMSs, the conflicting source cell is determined by the NMS, or information exchange is performed by the multiple EMSs, and the conflict source is determined by one of the EMSs. Community.

For example, if the EMS to which the conflicting source cell belongs detects a collision, the EMS determines the conflicting source cell and sends an indication message to the first base station to which the conflicting source cell belongs. If an EMS detects that the conflicting source cell is not within its own jurisdiction, the EMS determines the EMS to which the conflicting source cell belongs, for example, by determining to the NMS, or to other databases (where the base station and the corresponding base station are maintained) The correspondence between the EMS and the query determines that the conflicting source cell information is sent to the EMS to which the conflicting source cell belongs, and the EMS to which the conflicting source cell belongs sends the indication information to the first base station to which the conflicting source cell belongs.

When the first base station needs to request an available PCI from the OAM, the available PCI list may be stored in the NMS or the EMS, and the first base station may be allocated an available PCI by the NMS or the EMS, for example, the NMS or the EMS to which the conflicting source cell belongs (or Available PCI list). For example, when the NMS allocates available PCI, the NMS sends the available PCI to the first base station or sends the available PCI to the first base station through the EMS; when the EMS allocates the available PCI, sends the available to the first base station. PCL

Of course, understandably, as the network evolves, the above functions may also be performed by other entities in the OAM.

FIG. 3 is a schematic flow chart of another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 3, the method can include the following.

5301. After detecting the PCI conflict, the detecting device determines the conflicting source cell.

In this embodiment, in order to avoid affecting the original cell planning in the network, the cell that uses the same PCI later may be determined as the conflicting source cell. For example, if the detecting device finds that only the neighboring cell 1 uses the first PCI, it is considered that there is no PCI. The conflict, and then the discovery of the new neighbor 2 (such as joining a new base station) also uses the first PCI, then determines that the neighbor 2 is the conflict source cell. After the conflicting source cell is determined, the PCI used by the conflicting source cell is a conflicting PCI.

The detecting device may be an OAM, an NMS, an EMS, or a first base station to which the neighboring cell 2 (ie, the conflicting source cell) belongs.

When the detecting device is the second base station, the second base station may detect the conflict between the PCI and the PCI used by the first base station, and may also detect the conflict between the first base station and the PCI used by the base station in other cells. . When the detecting device is OAM, the PCI collision may be a collision of the PCI used by the first base station and any other base station in the network.

S302: After determining the conflicting source cell, the detecting device sends an indication message to the first base station to which the conflict source cell belongs.

In this embodiment, the indication message is used to indicate the conflicting source cell that causes the PCI conflict, for example, the indication message carries the identifier of the conflicting source cell, for example, the PCI or GCI (Global Cell Identity) of the conflicting source cell. Logo). If the detecting device is the second base station, the indication message may be sent in the existing S1/X2 interface message or the newly added S1/X2 interface message; or, when the NMS in the OAM detects and determines the conflicting source cell, The NMS sends the conflicting source cell information to the first base station to which the conflicting source cell belongs, or the NMS sends the conflicting source cell information to the EMS through the northbound interface, and then the EMS forwards the information to the first base station. When by When the EMS performs detection and determines the conflicting source cell, the EMS may send an indication message to the first base station.

5303. After receiving the indication message sent by the detecting device, the first base station selects an available PCI to replace the PCL of the conflicting source cell.

For example, the first base station selects an available PCI from its own maintained PCI list and replaces the current conflicting PCI with the selected available PCI.

5304. The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, when the detecting device is the second base station, the first base station may also send the replaced PCI to the second base station. The first base station may send the replaced PCI to the second base station according to the neighbor relationship table or the source of the indication message; or the OAM receives the replaced PCI sent by the first base station, The PCI after the replacement of the first base station may be further sent to the second base station.

In this embodiment, the detecting device can spontaneously detect the PCI collision and determine the conflicting source cell according to the cell information using the same PCI. After the first base station receives the indication message including the conflict source cell information that causes the PCI collision, the available PCI is obtained, and the PCI of the conflict source cell is replaced by the available PCI, so that the network can spontaneously allocate the PCI, thereby solving the PCI conflict problem.

FIG. 4 is a schematic flow chart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 4, the method can include the following.

5401. After detecting the PCI conflict, the detecting device determines the conflicting source cell.

S402. After determining the conflicting source cell, the detecting device sends an indication message to the first base station to which the conflicting source cell belongs.

5403. The first base station determines whether the PCI list saved by itself is available. If yes, execute S404. Otherwise, execute S405.

For example, the first base station determines whether the PCIs in the PCI list are all used PCIs, and if so, the PCI list is an unavailable PCI list; if the PCI list has at least one PCI as an unused PCI, This PCI list is a list of available PCIs.

S404: The first base station selects an available PCI from the list of PCIs saved by itself, and uses the The PCI of the current conflicting source cell can be replaced by PCI.

S405: The first base station sends a request message for acquiring an available PCI to the OAM, and after obtaining the available PCI returned by the OAM, saving the available PCI as a PCI 歹 table maintained by itself. Then execute S404.

In this embodiment, the request message for acquiring available PCI may include request reason information, for example, the request cause information may be a PCI conflict. The OAM allocates a new PCI based on the request cause information. The OAM may send the reassigned available PCI to the first base station in the form of a PCI list, where the PCI list may contain one or more available PCIs, and when there are multiple available PCIs, the first base station selects one of them. Replace the PCL of the conflicting source cell with PCI

For example, when the NMS allocates available PCI, the NMS can send the available PCI to the first base station, or send it to the EMS through the northbound interface, and then forward it to the first base station by the EMS; when the available PCI is allocated by the EMS, the EMS can use the available The PCI is sent to the first base station.

5406. The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, the S405 may be executed after the S405 is performed, that is, after the SeNB receives the indication message, the request message for obtaining the available PCI is sent to the OAM.

This embodiment can effectively utilize the PCI list saved by the first base station by judging whether the saved PCI list is available.

FIG. 5 is a schematic flow chart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 5, the method can include the following.

S501: After the OAM detects a PCI conflict, determine a conflicting source cell.

In this embodiment, the method for determining a conflicting source cell by using the OAM may refer to the method in the embodiment shown in FIG. Specifically, a PCI collision can be detected by the NMS or EMS.

S502. After determining the conflicting source cell, the OAM re-allocates the available PCI for the conflicting source cell. For example, OAM can be re-planned and divided according to preset algorithms, such as relative distance algorithms. Available with PPCCII. . For example, if the NNMMSS detection detects that the PPCCII conflicts, the PPCCII can be used by the NNMMSS root according to the list of available PPCCII columns that can be saved according to the insurance;; when the EEMMSS detection test When the conflict occurs, the EEMMSS root of the genus belonging to the small cell area of the collision source may be allocated according to the available PPCCII column list table that can be saved and used. .

55550033,, OOAAMM will send the re-re-distributed available PPCCII and the indication indication message to the first base of the genus of the small cell area 55 of the collision source. Base station. .

In the embodiment of the present embodiment, the root entity according to the medium distribution according to SS550022 can be used with PPCCII, and the real entity is not the same ((NNMMSS or EEMMSS)), and the corresponding entity should be It can be sent to the first base station by using PPCCII. . The heavy reassignment may be used by the PPCCII for the first base station to replace the collision avoidance source small cell area of the collision cell PPCCII; The indication message is used to enable the said first base station to obtain the knowledge that the said PPCCII collision conflict occurs. . The OOAAMM may use the PPCCII with the cocoa 1100 to be re-allocated, and the information information of the small cell area of the conflicting source may be carried in the same strip message. The intermediate transmission is sent to the first base station, or the carrier is separately sent to the first base station in a different message. .

55550044, after the first base station is received by the first base station, after receiving the indication message, the available re-news allocation sent by the OOAAMM is replaced by the available PPCCII. The forward collision conflict source source small cell area of the collision conflict PPCCII. .

55550055,, the first base station station sends a PPCCII to the OOAAMM to send the replacement. . This step is an optional step. .

1155 The embodiment of the present embodiment OOAAMM sends the delivery of the indication indication message and the re-re-distribution of the available PPCCII after determining the fixed collision source source small cell area. Solve the problem of PPCCII conflict conflict question. .

FIG. 66 is a flow chart showing a method for identifying a physical layer layer identification of a small cell area according to another embodiment of the present invention. Schematic diagram. . As shown in FIG. 66, the method may include a package as follows. .

55660011, the second second base station station determines that the fixed collision source source small cell area is determined after the detection and detection of the PPCCII collision conflict. .

In the example of the present embodiment, the method for determining the small cell area of the collision source may be determined by referring to the method of the embodiment shown in FIG. .

55660022, the second second base station station sends the indication message to the OOAAMM after confirming that the fixed collision source source small cell area is determined. .

55660033, the OOAAMM forwards and forwards the indication indication message to the first base station. .

55660044,, the first base station determines whether the PPCCII column list table saved from the self-protection is available, and if the judgment is YES, the execution line is executed. SS660055,, otherwise, execute SS660066. .

55660055,, the first first base station station selects one of the PPCCII column list tables saved from the self-protection, and can use PPCCII, and uses the same The conflicting PCI of the current conflicting source cell can be replaced by PCI.

S606. The first base station sends a request message for acquiring an available PCI to the OAM, and after obtaining the available PCI returned by the OAM, saving the available PCI as a PCI 歹 table maintained by itself. Then execute S605.

S607. The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, the PCI list saved by the first base station can be effectively utilized by S604 and S605. FIG. 7 is a schematic flowchart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 7, the method may include the following.

5701. The second base station determines the conflicting source cell after detecting the PCI collision.

In this embodiment, the method for determining a conflicting source cell may refer to the method in the embodiment shown in FIG.

S702: The second base station sends the indication message to the OAM after determining the conflicting source cell.

S703: The OAM sends the re-assigned available PCI to the first base station after receiving the indication message sent by the second base station.

For example, the available PCI can be allocated by the NMS or EMS based on the saved available PCI list and sent to the first base station. When the reassigned available PCI is sent to the first base station, the indication message may also be sent at the same time, so that the first base station learns the conflict source that causes the PCI conflict. The indication message may be sent in the same message as the reassigned available PCI, and also carried in different messages.

5704. The first base station replaces the conflicting PCI of the current conflicting source cell with the reassigned available PCI sent by the OAM.

5705. The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, the OAM sends the indication message and the reassigned available PCI after determining the conflicting source cell to solve the PCI conflict problem.

FIG. 8 is a flow chart of still another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 8, the method may include the following.

S801. The second base station determines the conflict source cell after detecting the PCI collision. 5802. The second base station sends an indication message to the first base station after determining the conflicting source cell. In this embodiment, the first base station receives the indication message to learn a conflicting source cell that causes a PCI collision.

S803: The second base station sends a request message for acquiring an available PCI to the OAM, and sends the available PCI returned by the OAM to the first base station.

In this embodiment, the second base station requests an available PCI from the OAM, so that the second base station serves as an available PCI relay station to send the available PCI of the OAM allocation to the first base station. For example, the available PCI may be allocated by the NMS or EMS according to the saved available PCI list and sent to the second base station.

S804: The first base station replaces the conflicting PCI of the current conflicting source cell with the available PCI re-allocated by the OAM sent by the second base station.

5805. The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, the sending of the indication message in S802 may be simultaneously sent to the first base station after the second base station acquires the available PCI reassigned by the OAM.

In this embodiment, after determining the conflicting source cell, the second base station requests an available PCI from the OAM to solve the PCI conflict problem.

FIG. 9 is a schematic flowchart of another method for detecting a cell physical layer identifier conflict according to another embodiment of the present invention. As shown in FIG. 9, the method may include the following.

S901: The OAM receives a message sent by the second base station, where the message includes cell information using the same PCI.

For example, the message may include a list of conflicting cells, which may include each cell

CGI, PCI, frequency and other information, the cell information may be the identity of the cell, such as the PCI or GCI of the cell.

S902: The OAM determines a conflict source cell according to the cell information that uses the same PCI.

S903, the OAM sends an indication message to the first base station to which the conflicting source cell belongs, where the indication message includes information of a conflicting source cell.

In this embodiment, the NMS or the EMS may determine the rush according to the information acquired from the second base station. The source cell and the indication message are sent to the first base station.

In this embodiment, the OAM determines the conflict source cell according to the cell information that is sent by the second base station and uses the same PCI to implement the network to detect the PCI collision and determine the conflict source cell.

FIG. 10 is a schematic flowchart of a method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 10, the method can include the following.

51001. After detecting the PCI collision, the second base station sends a message to the OAM that includes cell information using the same PCI.

For example, the cell information using the same PCI includes the identity of all conflicting cells, such as the PCI or GCI of the cell. In this embodiment, it is assumed that the second base station can detect a PCI collision caused by a cell using the same PCI in the network system, but does not have the function of determining a conflicting source cell.

51002, 0 AM determines a conflicting source cell according to the message.

In this embodiment, the method for determining a conflicting source cell may refer to the method in the embodiment shown in FIG. For example, if the cell using the same PCI sent by the second base station is within the jurisdiction of the EMS and NMS, the source of the collision can be determined by the EMS or NMS. If the cell using the same PCI is within multiple EMS jurisdictions, but within the same NMS jurisdiction, the source of the collision is determined by the NMS, or the source of the collision is determined by one of the EMSs.

51003, 0 AM sends an indication message to the first base station to which the conflict source belongs after determining the conflicting source cell.

For example, when the NMS determines the source of the collision, it may send it to the first base station or forward it to the first base station through the EMS; when the collision source is determined by the EMS, the EMS may send the conflicting source cell information to the first base station.

51004: The first base station determines whether the PCI list saved by itself is available. If the determination is yes, execute S1005, otherwise execute S1006.

For the specific judgment method, refer to the method of S403.

S1005: After receiving the indication message sent by the OAM, the first base station selects an available PCI from the PCI list maintained by itself, and replaces the current rush with the selected available PCI. Collision PCI of the source cell.

S1006: The first base station sends a request message for acquiring an available PCI to the OAM, and after obtaining the available PCI returned by the OAM, saving the available PCI as a PCI list maintained by itself. Then execute S 1005.

S1007: The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, the S1004 and S1005 can effectively utilize the PCI list saved by the first base station.

FIG. 11 is a schematic flowchart of another method for allocating a physical layer identifier of a cell according to another embodiment of the present invention. As shown in FIG. 11, the method may include the following.

S1101. After detecting the PCI conflict, the second base station sends the same use to the OAM.

The message of the cell information of the PCI.

51102. The OAM determines a conflict source cell according to the message.

51103. After determining the conflicting source cell, the OAM reassigns the available for the conflicting source cell.

PCL

For example, available PCI can be re-planned and allocated by the NMS or EMS according to a preset algorithm, such as a relative distance algorithm.

51104. The OAM sends the reassigned available PCI and indication message to the first base station to which the conflicting source cell belongs.

After the first base station learns the conflicting source cell that causes the PCI conflict, for example, according to the indication message, the conflicting PCI of the current conflicting source cell is replaced by the reassigned available PCI sent by the OAM.

51106. The first base station sends the replaced PCI to the OAM. This step is an optional step. In this embodiment, the OAM sends the indication message and the reassigned available PCI after determining the conflicting source cell, which can solve the PCI conflict problem in a faster time.

FIG. 12 is a schematic structural diagram of a network system according to an embodiment of the present invention. As shown in FIG. 12, the network system includes: a detecting device 1210 and a first base station 1220. The detecting device 1210 is configured to determine a conflicting source cell according to the cell information using the same PCI, and send an indication message to the first base station 1220 to which the conflicting source cell belongs.

For example, the detecting device may be a second base station adjacent to the first base station 1220, or located in an OAM, for example, may be an NMS or EMS, or located in an NMS or EMS.

If cells using the same PCI are within the jurisdiction of the same EMS and NMS, the detection device 1210 may be located in the NMS or EMS.

If the cell using the same PCI is within the jurisdiction of the same NMS, but within the jurisdiction of multiple EMSs, the detecting device 1210 may be located in the NMS. At this time, the detecting device 1210 may send an indication message to the first base station, or The indication message is sent to the EMS through the northbound interface, and then sent by the EMS to the first base station. In another embodiment of the present invention, the detecting device 1210 is located in the EMS, and the detecting device 1210 determines the conflicting source cell. If the conflicting source cell is located in the EMS, the detecting device 1210 sends an indication message to the first base station, if the conflicting source cell is not present. In the EMS, the detecting device 1210 determines the EMS to which the conflicting source cell belongs, and sends the indication information to the first base station via the EMS to which the conflicting source cell belongs.

The first base station 1220 is configured to obtain an available PCI after receiving the indication message sent by the detecting device 1210, and also to replace the PCI of the conflicting source cell with the available PCI.

Still referring to FIG. 12, the detecting device 1210 further includes: a detecting unit 1211 and an indicating unit 1212.

The detecting unit 1211 is configured to determine a conflict source cell according to cell information using the same PCI. In this embodiment, in order to avoid affecting the original cell plan in the network, the detecting unit 1211 may determine the cell that uses the conflicting PCI later as the conflict source cell.

The indicating unit 1212 is configured to send the indication message to the first base station 1220 to which the conflicting source cell belongs after the detecting unit 1211 determines the conflicting source cell.

When the detecting device is located in the OAM, the detecting device 1210 further includes a learning unit 1213, configured to receive a message sent by the second base station, where the message includes cell information that uses the same cell physical layer identifier, and the detecting unit 1211 is further configured to: Received according to the learned unit 1213 The information identifies the conflicting source cell.

The detecting device provided in the embodiment of the present invention may be located in an NMS or an EMS, or may be located in other entities of the OAM as the network evolves.

Still referring to FIG. 12, the first base station 1220 further includes: a receiving unit 1221, an acquiring unit 1222.

The receiving unit 1221 is configured to receive an indication message sent by the detecting device 1210, where the indication message includes conflict source cell information that causes a PCI collision.

The obtaining unit 1222 is configured to obtain an available PCI after the receiving unit 1221 receives the indication message. Further, the first base station 1220 may further include: a replacing unit 1223, configured to replace the PCI of the conflicting source cell with the available PCI acquired by the obtaining unit 1222.

Specifically, the receiving unit 1221 is configured to receive the indication message from the second base station or the OAM, and the obtaining unit 1222 may select an available PCI from the PCI list saved by itself, or obtain the obtained PCI from the OAM when there is no PCI available in the saved PCI list. The PCI can be used, or the available PCI sent by the second base station or the OAM is received. At this time, the available PCI is allocated by the OAM, and further, the indication message received by the receiving unit 1221 or the available PCI can be received from the NMS or the EMS. When the NMS receives, it can receive from the NMS. Alternatively, the NMS first sends an indication message or an available PCI to the EMS through the northbound interface, and the receiving unit 1221 receives the indication message or the available PCI from the EMS.

In this embodiment, the detecting device can spontaneously detect the PCI collision and determine the conflicting source cell according to the cell information using the same PCI. After the first base station receives the indication message including the conflict source cell information that causes the PCI collision, the available PCI is obtained, so that the network can spontaneously allocate the PCI, thereby solving the PCI conflict problem.

FIG. 13 is another schematic structural diagram of a network system according to another embodiment of the present invention. The network system includes: a second base station 1310, an OAM 1320, and a first base station 1330.

The second base station 1310 is configured to send, to the OAM 1320, cell information including using the same PCI. Message.

The OAM 1320 is configured to determine a conflicting source cell according to the cell information that is sent by using the same PCI according to the second base station 1310, and send the indication information to the first base station 1330, where the indication message includes information of the conflicting source cell; specifically, when the NMS determines the conflict. The NMS may be sent to the first base station 1330, or sent to the EMS through the northbound interface, and then forwarded by the EMS to the first base station 1330. When the collision source is determined by the EMS, the EMS may send the conflicting source cell information to the first base station. 1330.

The first base station 1330 is configured to acquire an available PCI after receiving the indication message sent by the OAM 1320, and also to replace the PCI of the conflicting source cell with the available PCI.

In this embodiment, the OAM can determine the conflicting source cell according to the cell information that is sent by the second base station, and the first base station obtains the available PCI after receiving the indication message of the conflicting source cell information sent by the OAM, and replaces the available PCI with the available PCI. The PCI of the conflicting source cell enables the network to allocate PCI spontaneously, thereby solving the PCI conflict problem.

The method, device and detection device provided by the embodiments of the present invention can be applied to an LTE system, and can also be applied to other communication systems.

The above are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the claims of the present invention are still within the scope of the present invention.

Claims

Rights request

A method for allocating a physical layer identifier of a cell, comprising:

Receiving an indication message, where the indication message includes information of a conflicting source cell that causes a cell physical layer identifier to collide;

2. The method according to claim 1, wherein the receiving indication message is specifically:

The receiving operation management and maintenance OAM or the indication message sent by the second base station adjacent to the first base station to which the conflicting source cell belongs.

The method according to claim 2, wherein the acquiring the available cell physical layer identifier is specifically:

Obtaining an available cell physical layer identifier from the saved cell physical layer identifier list; or receiving an available cell physical layer identifier sent by the OAM; or

Receiving an available cell physical layer identifier sent by the second base station, where the available cell physical layer identifier is allocated by the OAM.

The method according to claim 3, wherein before the receiving the available cell physical layer identifier sent by the OAM, the method further includes:

Determining whether there is an available cell physical layer identifier in the saved cell physical layer identifier list; when there is no available cell physical layer identifier in the cell physical layer identifier list, sending a request message for acquiring the available cell physical layer identifier to the OAM .

The method according to claim 3 or 4, wherein the receiving the physical layer identifier of the available cell that is sent by the OAM is specifically: receiving an available cell physical layer identifier sent by the network management entity NMS or the network element management entity EMS; Or,

Receives the available cell physical layer identifier forwarded by the NMS through the EMS.

The method according to any one of claims 2 to 4, wherein the method further comprises: Sending, to the OAM or the second base station, an available cell physical layer identifier for replacing a cell physical layer identifier of the conflicting source cell.

The method according to any one of claims 1 to 4, wherein the cell physical layer identifier is a physical cell identifier PCI of the cell.

A method for detecting a cell physical layer identifier conflict, the method comprising: determining, by the detecting device, the conflicting source cell according to the cell information that uses the same cell physical layer identifier; the detecting device is the first to the conflicting source cell The base station sends an indication message, where the indication message includes information of the conflicting source cell.

9. The method according to claim 8, wherein the detecting device is an operation management and maintenance OAM or a second base station adjacent to the first base station.

The method according to claim 9, wherein when the detecting device is OAM, the detecting device determines, according to the cell information using the same cell physical layer identifier, that the conflicting source cell is:

The OAM receives a message sent by the second base station, where the message includes cell information that uses the same cell physical layer identifier;

The OAM determines a conflict source cell according to the cell information that uses the same cell physical layer identifier.

The method according to claim 9 or 10, wherein when the detecting device is OAM, the method is specifically:

The network management system NMS or the network element management system EMS determines the conflict source cell according to the cell information that uses the same cell physical layer identifier, and sends the indication message to the first base station; or

The NMS determines the conflicting source cell according to the cell information that uses the same cell physical layer identifier, and sends the indication message to the EMS through the northbound interface, and the EMS forwards the indication message to the first base station;

Or,

The EMS determines the conflict source cell according to the cell information using the same cell physical layer identifier, and the rushing The EMS to which the source cell belongs includes a message including the information of the conflicting source cell, and the EMS to which the conflicting source cell belongs sends the indication message to the first base station.

The method according to claim 9, wherein, when the detecting device is a second base station adjacent to the first base station, the detecting device is to the first base station to which the conflicting source cell belongs The sending the indication message is specifically:

The second base station sends the indication information to the first base station via an OAM.

13. A base station, comprising:

The base station according to claim 13, wherein the acquiring unit is further configured to obtain an available cell physical layer identifier from the saved physical cell identifier PCI list; or, receive operation management and maintain OAM transmission available. The physical layer identifier of the cell is received; or, the physical layer identifier of the available cell sent by the second base station adjacent to the first base station to which the conflicting source cell belongs is received, and the physical layer identifier of the available cell is allocated by the OAM.

The base station according to claim 14, wherein the acquiring unit is configured to receive an available cell physical layer identifier that is sent by the OAM, and the method includes: receiving the available cell sent by the network element management system EMS or the network management system (NMS) Physical layer identification;

Or, configured to receive an available cell physical layer identifier forwarded by the NMS through the EMS.

The base station according to claim 14 or 15, further comprising: a notifying unit, configured to send, to the OAM or the second base station, a cell physical layer identifier for replacing the cell of the conflicting source cell The cell physical layer identifier can be used.

17. A testing device, comprising:

a detecting unit, configured to determine a conflict source cell according to cell information that uses the same cell physical layer identifier; And an indication unit, configured to send, after the detecting unit determines the conflicting source cell, an indication message to the first base station to which the conflicting source cell belongs, where the indication message includes information of the conflicting source cell.

The detecting device according to claim 17, wherein the detecting device further comprises: a learning unit, wherein

The learning unit is configured to receive a message sent by a second base station that is adjacent to the first base station to which the conflicting source cell belongs, where the message includes cell information that uses the physical layer identifier of the same cell, and the detecting unit is further used for The conflict source cell is determined according to the cell information received by the learning unit.

The detecting device according to claim 17 or 18, wherein, when the detecting device is located in the network management system NMS, the indicating unit is further configured to use the network element management system EMS to the first Sending, by the base station, the indication message; or

When the detecting device is located in the EMS, the indicating unit is further configured to send the indication message to the first base station by using an EMS to which the conflicting source cell belongs.

20. A network system, comprising:

a detecting device, configured to determine a conflicting source cell according to the cell information that uses the same cell physical layer identifier, and send the indication message to the first base station to which the conflicting source cell belongs, where the indication message includes information of the conflicting source cell;

The first base station is configured to receive an indication message sent by the detecting device, and obtain an available cell physical layer identifier for the conflicting source cell according to the indication message.

21. A network system, comprising:

The OAM is configured to send an indication message to the first base station after determining the collision source cell according to the cell information that is identified by using the physical layer of the same cell, where the indication message includes information of the conflicting source cell.

The first base station is configured to receive an indication message sent by the OAM, and obtain an available cell physical layer identifier for the conflicting source cell according to the indication message.