CN112135299A - 5G physical cell identity configuration method, device and terminal equipment - Google Patents

Abstract

The embodiment of the invention discloses a method, a device and terminal equipment for configuring a 5G physical cell identifier, wherein the method comprises the steps of acquiring neighbor cell frequency point information, neighbor cell PCI and neighbor cell system information of each neighbor cell of a cell to be configured; filtering candidate PCIs in a PCI candidate list according to the neighbor frequency point information, the neighbor PCIs and the neighbor system information; and automatically configuring the PCI of the cell to be configured according to the remaining candidate PCI in the PCI candidate list. According to the technical scheme, on one hand, labor cost is reduced, on the other hand, PCI configuration efficiency is improved, and error rate is reduced.

Description

5G physical cell identity configuration method, device and terminal equipment

technical field

The present invention relates to the technical field of wireless communication, and in particular, to a method, apparatus and terminal equipment for configuring a 5G physical cell identifier.

Background technique

The existing physical cell ID (Physical CellID, PCI) allocation methods mainly include manual allocation, centralized automatic allocation based on graph theory, and allocation based on terminal measurement and reporting. However, these allocation methods not only require a lot of human resources, but also often have the problem of PCI conflict, which makes network deployment difficult, it is difficult to obtain network topology, and the switching process is complicated, resulting in difficult operation and high labor cost.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides a method, apparatus and terminal equipment for configuring a 5G physical cell identity.

An embodiment of the present invention provides a method for configuring a 5G physical cell identity, the method comprising:

Obtain adjacent cell frequency point information, adjacent cell PCI and adjacent cell system information of each adjacent cell of the to-be-configured cell;

Filter candidate PCIs in the PCI candidate list according to the neighbor frequency point information, the neighbor PCI and the neighbor system information;

The PCI of the to-be-configured cell is configured according to the remaining candidate PCIs in the PCI candidate list.

The method for configuring a 5G physical cell identifier according to another embodiment of the present invention filters candidate PCIs in the PCI candidate list, including:

The PCIs of the same-frequency neighboring cells are filtered and removed from the PCI candidate list according to the neighboring cell frequency point information and the neighboring cell PCIs.

The above-mentioned 5G physical cell identity configuration method further includes:

Obtain intra-frequency adjacent system information according to the adjacent frequency point information and the adjacent system information;

Obtain the PCI of the same-frequency neighboring cell corresponding to each of the same-frequency neighboring cells from the system information of the same-frequency neighboring cell;

The intra-frequency adjacent cell PCIs corresponding to the respective intra-frequency adjacent cells are filtered and removed from the PCI candidate list.

The above-mentioned 5G physical cell identity configuration method further includes:

Obtain inter-frequency adjacent cell system information according to the adjacent cell frequency point information and the adjacent cell system information;

Obtain the PCI of each inter-frequency adjacent cell with the same frequency as the to-be-configured cell from the inter-frequency adjacent cell system information;

From the PCI candidate list, filter and remove the PCIs of the neighboring cells of the respective inter-frequency neighboring cells that are on the same frequency as the to-be-configured cell.

The above-mentioned 5G physical cell identity configuration method further includes:

Obtain the first modulo result of each remaining candidate PCI pair preset parameter in the PCI candidate list;

Obtain the second modulo result of the preset parameter by the PCI of the same-frequency adjacent area;

The PCIs whose first modulo result is the same as the second modulo result are filtered from the PCI candidate list.

In the above-mentioned 5G physical cell identity configuration method, the preset parameters include 3, 4 and 30.

Another embodiment of the present invention provides a 5G physical cell identity configuration device, the device includes:

The adjacent cell information acquisition module is used to acquire the adjacent cell frequency point information, the adjacent cell PCI and the adjacent cell system information of each adjacent cell of the cell to be configured;

a PCI filtering module, configured to filter candidate PCIs in the PCI candidate list according to the adjacent area frequency point information, the adjacent area PCI and the adjacent area system information;

A PCI configuration module, configured to configure the PCI of the to-be-configured cell according to the remaining candidate PCIs in the PCI candidate list.

An embodiment of the present invention relates to a terminal device, including a memory and a processor, where the memory is used for storing a computer program, and the computer program executes the above-mentioned 5G physical cell identifier configuration method when running on the processor.

The above-mentioned terminal equipment includes a base station.

The embodiment of the present invention relates to a readable storage medium, which stores a computer program, and the computer program executes the above-mentioned 5G physical cell identifier configuration method when running on a processor.

When configuring the PCI for a cell, the present invention acquires the adjacent cell frequency point information, the adjacent cell PCI and the adjacent cell system information of each adjacent cell of the cell to be configured; according to the adjacent cell frequency point information, the adjacent cell PCI and the The neighbor cell system information filters the candidate PCIs in the PCI candidate list; and automatically configures the PCI of the to-be-configured cell according to the remaining candidate PCIs in the PCI candidate list. The technical solution, on the one hand, reduces labor costs, and on the other hand, improves the efficiency of PCI configuration and reduces the error rate.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be It is regarded as the limitation of the protection scope of the present invention. In the various figures, similar components are numbered similarly.

1 shows a schematic flowchart of a method for configuring a 5G physical cell identity provided by an embodiment of the present invention;

FIG. 2 shows a schematic flowchart of another 5G physical cell identity configuration method provided by an embodiment of the present invention;

3 shows a schematic diagram of a configuration of physical cell identifiers for avoiding PCI collision provided by an embodiment of the present invention;

FIG. 4 shows a schematic diagram of a physical cell identity configuration for avoiding PCI confusion provided by an embodiment of the present invention;

5 shows a schematic diagram of another physical cell identifier configuration for avoiding PCI confusion provided by an embodiment of the present invention;

FIG. 6 shows a schematic structural diagram of an apparatus for configuring a 5G physical cell identity provided by an embodiment of the present invention.

Description of main component symbols:

1-5G physical cell identification configuration device; 100-adjacent cell information acquisition module; 200-PCI filtering module; 300-PCI configuration module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings are not intended to limit the scope of the invention as claimed, but are merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

Hereinafter, the terms "comprising", "having" and their cognates, which may be used in various embodiments of the present invention, are only intended to denote particular features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the presence of or adding one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or the possibility of a combination of the foregoing.

Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of this invention belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized or overly formal meaning, unless explicitly defined in the various embodiments of the present invention.

PCI is a key parameter of the wireless communication system. The 5G system defines 1008 PCIs. Each cell should avoid PCI conflicts when selecting PCIs. PCI conflicts include PCI collision (Collision) and PCI confusion (Confusion). A PCI collision indicates that the PCIs of two adjacent cells, A and B, are the same. User Equipment (UE) can simultaneously receive signals from the two cells in the overlapping area of the two cells. Since the PCIs of A and B are the same, The probability of UE handover failure and disconnection in this area increases; PCI confusion means that the PCIs of two (B and C) or more neighboring cells on the same frequency as cell A are the same. Since the PCIs of A, B, and C are the same, Causes the UE to fail to handover and disconnect.

In the 5G physical cell identifier configuration method disclosed in the present invention, when a PCI is configured for a cell, the adjacent cell frequency point information, the adjacent cell PCI and the adjacent cell system information of each adjacent cell of the to-be-configured cell are acquired through air interface listening; The area frequency point information, the adjacent area PCI and the adjacent area system information filter the candidate PCIs in the PCI candidate list; the PCI of the to-be-configured cell is automatically configured according to the remaining candidate PCIs in the PCI candidate list. On the one hand, it reduces labor costs, and on the other hand, it improves the efficiency of PCI configuration and reduces the error rate.

Example 1

This embodiment, referring to FIG. 1 , shows a method for configuring a 5G physical cell identity, including the following steps:

S100: Acquire adjacent cell frequency point information, adjacent cell PCI, and adjacent cell system information of each adjacent cell of the to-be-configured cell.

Allocating PCI to a cell means allocating PCI to the base station corresponding to the cell. The base station searches for the frequency point information, PCI and system information of each adjacent cell through air interface listening. The frequency point information of the adjacent cell, the PCI of the adjacent cell and the system information of the adjacent cell of the base station.

It can be understood that the system information in the 5G (NR) network includes MIB and SIB, which is basically the same as the LTE network, but the transmission period is different; another difference is that the SIB message in 5G (NR) is not broadcast periodically; 5G ( There are two kinds of SIB messages in NR), one is periodic broadcast, and the other is sent according to UE request.

S200: Filter candidate PCIs in the PCI candidate list according to the neighboring cell frequency point information, the neighboring cell PCI, and the neighboring cell system information.

When the 5G network performs network planning, a group of PCIs can be planned for the cells of the same frequency as the PCI candidate list, and the PCI candidate list can be filtered according to the neighbor frequency point information, the neighbor PCI and the neighbor system information. Candidate PCI; if the PCI candidate list is not pre-planned, 1008 PCIs are used as the candidate list, and the candidate PCIs in the PCI candidate list are filtered according to the neighbor frequency point information, the neighbor PCI and the neighbor system information.

S300: Configure the PCI of the to-be-configured cell according to the remaining candidate PCIs in the PCI candidate list.

Select a suitable PCI from the remaining candidate PCIs in the PCI candidate list. If it cannot be selected, you can report it to the network management side for processing.

In this embodiment, when a PCI is configured for a cell, the adjacent cell frequency point information, the adjacent cell PCI, and the adjacent cell system information of each adjacent cell of the to-be-configured cell are acquired through air interface listening; The area PCI and the adjacent area system information filter the candidate PCIs in the PCI candidate list; and automatically configure the PCI of the to-be-configured cell according to the remaining candidate PCIs in the PCI candidate list. On the one hand, it reduces labor costs, and on the other hand, it improves the efficiency of PCI configuration and reduces the error rate. The technical solution of this embodiment can avoid PCI conflicts, improve the handover success rate, reduce the call drop rate caused by abnormal handover, and improve the user satisfaction of the 5G network.

Example 2

In this embodiment, referring to FIG. 2 , the method for configuring a 5G physical cell identity includes the following steps:

S10: Acquire adjacent cell frequency point information, adjacent cell PCI, and adjacent cell system information of each adjacent cell of the cell to be configured.

S20: Filter and remove the PCI of the same-frequency adjacent area from the PCI candidate list according to the frequency point information of the adjacent area and the PCI of the territory.

After S20 is performed, some PCIs are filtered from the PCI candidate list, and at this time, S30 needs to be performed: it is determined whether the PCI candidate list is empty. That is, after judging some PCIs, whether there is still a candidate PCI in the PCI candidate list, if the PCI candidate list is empty, execute S80: report an alarm; if the PCI candidate list is not empty, execute S40.

S40: Filter the intra-frequency adjacent cell PCIs corresponding to each intra-frequency adjacent cell from the PCI candidate list according to the adjacent cell frequency point information and the intra-frequency adjacent cell system information in the adjacent cell system information.

After S40 is performed, some PCIs are filtered from the PCI candidate list, and at this time, S30 needs to be performed: it is determined whether the PCI candidate list is empty. That is, it is judged whether there is a candidate PCI in the PCI candidate list after filtering some PCIs this time. If the PCI candidate list is empty, execute S80: report an alarm; if the PCI candidate list is not empty, execute S50.

S50: Filter the PCI of each inter-frequency neighbor cell with the same frequency as the to-be-configured cell from the PCI candidate list according to the neighbor cell frequency point information and the inter-frequency neighbor cell system information in the neighbor cell system information.

After S50 is performed, some PCIs are filtered from the PCI candidate list, and at this time, S30 needs to be performed: it is determined whether the PCI candidate list is empty. That is, it is determined whether there is a candidate PCI in the PCI candidate list after filtering some PCIs this time. If the PCI candidate list is empty, perform S80: report an alarm; if the PCI candidate list is not empty, perform S60.

S60: Filter out the PCIs whose modulo results of the candidate PCIs on the preset parameters are the same as the results of the PCIs in the neighboring region taking the modulo on the preset parameters from the PCI candidate list.

After S60 is performed, some PCIs are filtered from the PCI candidate list, and at this time, S30 needs to be performed: it is determined whether the PCI candidate list is empty. That is, it is determined whether there is a candidate PCI in the PCI candidate list after filtering some PCIs this time. If the PCI candidate list is empty, perform S80: report an alarm; if the PCI candidate list is not empty, perform S70.

S70: Configure the PCI of the to-be-configured cell according to the remaining candidate PCIs in the PCI candidate list.

It can be understood that the order of the above steps S20, S40, S50 and S60 can be changed. Preferably, filtering is performed in the filtering order of S20, S40, S50 and S60, the filtering efficiency is higher and the filtering effect is better.

Further, as shown in FIG. 3 , Q1 represents the cell to be configured, and Q1 represents the same-frequency neighboring cell of the cell to be configured. S20 can avoid the PCI collision of adjacent intra-frequency cells, wherein, S20 includes: determining the adjacent intra-frequency point that is the same as the frequency point of the to-be-configured cell from the adjacent frequency point information of all adjacent cells; determining Neighboring cell PCIs corresponding to the same frequency points in each neighboring cell; filtering candidate PCIs that are the same as the corresponding neighboring cell PCIs from the PCI candidate list.

Further, as shown in FIG. 4 , Q1 represents the cell to be configured, Q2 represents the same-frequency neighbor of the cell to be configured, and Q3 represents the same-frequency neighbor of the same-frequency neighbor Q2 of the cell Q1 to be configured. S40 can avoid PCI confusion, and avoid that the PCI of the to-be-configured cell is the same as that of the same-frequency neighboring cell. Wherein, S40 includes: obtaining the same-frequency neighboring cell system information SIB3 according to the neighboring cell frequency point information and the neighboring cell system information; obtaining the same-frequency neighboring cell system information corresponding to each same-frequency neighboring cell Frequency adjacent area PCI; filter and remove the intra-frequency adjacent area PCI corresponding to each intra-frequency adjacent area from the PCI candidate list.

Further, as shown in FIG. 5 , Q1 represents the cell to be configured, Q4 represents the inter-frequency adjacent cell of the to-be-configured cell, and Q5 represents the adjacent cell of the inter-frequency adjacent cell Q4 having the same frequency as the to-be-configured cell Q1. S50 can also avoid PCI confusion, and avoid that when the frequency of the cell to be configured is the same as the frequency of the adjacent cell of the inter-frequency adjacent cell, the PCI of the cell to be configured is the same as the PCI of the adjacent cell of the inter-frequency adjacent cell. Wherein, S50 includes: obtaining inter-frequency adjacent cell system information SIB4 according to the adjacent cell frequency point information and the adjacent cell system information; Configuring the PCI of the adjacent cells of the same frequency of the cell; filtering and removing the PCI of the adjacent cells of the same frequency as the to-be-configured cell of each inter-frequency adjacent cell from the PCI candidate list.

Further, S60 includes: acquiring a first modulo result of each remaining candidate PCI in the PCI candidate list to a preset parameter; acquiring a second modulo result of the preset parameter by the PCI of the same-frequency adjacent area ; filter the PCIs whose first modulo result is the same as the second modulo result from the PCI candidate list. Among them, the preset parameters include 3, 4 and 30.

Because, when the PCI of the cell to be configured and the PCI of the same-frequency neighboring cell are the same as the result of modulo 3, it will affect the terminal to receive the Primary Synchronization Signal (PSS, Primary Synchronization Signal). The first modulo operation is performed on the candidate PCI, and the first modulo operation is that the candidate PCI is modulo 3; the first modulo operation is performed on the adjacent area PCI; the result of filtering the first modulo operation from the PCI candidate list is the same candidate PCI.

Since, when the PCI of the cell to be configured and the PCI of the same-frequency neighboring cell are the same as the result of modulo 4, the demodulation reference signal (DMRS, DeModulation Reference Signal) of the physical broadcast channel (PBCH) will be interfered. Each remaining candidate PCI in the PCI candidate list is subjected to a second modulo operation, where the second modulo operation is the candidate PCI to modulo 4; the second modulo operation is performed on the adjacent PCI; candidate PCIs with the same result of the second modulo operation.

Because, when the PCI of the to-be-configured cell and the PCI of the same-frequency adjacent cell have the same result of modulo 30, the demodulation reference signal interference of the uplink physical control channel (PUCCH) and uplink physical shared channel (PUSCH) will be caused, and the detection will also be caused. Reference signal (SRS, Sounding Reference Signal) interference, therefore, the third modulo operation can be performed on each remaining candidate PCI in the PCI candidate list, and the third modulo operation is the candidate PCI pair 30 modulo; A third modulo operation is performed on the zone PCI; candidate PCIs with the same result of the third modulo operation are filtered from the PCI candidate list.

Exemplarily, when the PCI of the same-frequency neighboring cell of the to-be-configured cell is 7, and the result of modulo 3 is 1, the candidate PCI whose modulo 3 result is 1 is filtered from the remaining candidate PCIs in the PCI candidate list.

Example 3

In this embodiment, referring to FIG. 6 , a 5G physical cell identifier configuration apparatus 1 includes: a neighbor cell information acquisition module 100 , a PCI filtering module 200 and a PCI configuration module 300 .

The adjacent cell information acquisition module 100 is used to acquire the adjacent cell frequency point information, the adjacent cell PCI and the adjacent cell system information of each adjacent cell of the cell to be configured; the PCI filtering module 200 is used to obtain the adjacent cell frequency point information, the The neighbor PCI and the neighbor system information filter candidate PCIs in the PCI candidate list; the PCI configuration module 300 is configured to configure the PCI of the to-be-configured cell according to the remaining candidate PCIs in the PCI candidate list.

The 5G physical cell identifier configuration device 1 disclosed in this embodiment is configured to execute the 5G physical cell identifier configuration method described in the above-mentioned embodiments through the cooperative use of the neighbor cell information acquisition module 100 , the PCI filtering module 200 and the PCI configuration module 300 . The implementation and beneficial effects involved in the embodiment are also applicable in this embodiment, and are not repeated here.

It can be understood that the embodiments of the present invention relate to a terminal device, including a memory and a processor, where the memory is used to store a computer program, and the computer program executes the 5G physical device described in the embodiments of the present invention when the computer program runs on the processor. Cell ID configuration method.

It can be understood that the terminal device includes a 5G base station.

It can be understood that the embodiment of the present invention relates to a readable storage medium, which stores a computer program, and the computer program executes the 5G physical cell identifier configuration method described in the embodiment of the present invention when the computer program runs on the processor.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may also be implemented in other manners. The apparatus embodiments described above are only schematic, for example, the flowcharts and structural diagrams in the accompanying drawings show the possible implementation architectures and functions of the apparatuses, methods and computer program products according to various embodiments of the present invention and operation. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions. It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart diagrams, can be implemented using dedicated hardware-based systems that perform the specified functions or actions. be implemented, or may be implemented in a combination of special purpose hardware and computer instructions.

In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.

If the functions are implemented in the form of software function modules and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a smart phone, a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention.

Claims (10)

1. A method for configuring a 5G Physical Cell Identifier (PCI), the method comprising:

acquiring neighbor cell frequency point information, neighbor cell PCI and neighbor cell system information of each neighbor cell of a cell to be configured;

filtering candidate PCIs in a PCI candidate list according to the neighbor frequency point information, the neighbor PCIs and the neighbor system information;

and configuring the PCI of the cell to be configured according to the remaining candidate PCI in the PCI candidate list.

2. The method of claim 1, wherein filtering the candidate PCIs in the PCI candidate list comprises:

and filtering and removing the PCI of the same-frequency neighbor cell from the PCI candidate list according to the neighbor cell frequency point information and the PCI of the neighbor cell.

3. The method of claim 2, further comprising:

obtaining same-frequency neighbor cell system information according to the neighbor cell frequency point information and the neighbor cell system information;

acquiring the PCI of the same-frequency neighboring cells corresponding to each same-frequency neighboring cell from the system information of the same-frequency neighboring cells;

and filtering and removing the PCI of the same-frequency adjacent regions corresponding to the PCI candidate list.

4. The method of claim 2, further comprising:

acquiring pilot frequency adjacent cell system information according to the adjacent cell frequency point information and the adjacent cell system information;

acquiring the PCI of the neighbor cell of each pilot frequency neighbor cell with the same frequency as the cell to be configured from the pilot frequency neighbor cell system information;

and filtering and removing the PCIs of the adjacent cells with the same frequency as the cell to be configured in each pilot frequency adjacent cell from the PCI candidate list.

5. The method of claim 2, further comprising:

obtaining a first modulus result of each remaining candidate PCI in the PCI candidate list to a preset parameter;

acquiring a second modulus result of the PCI of the same-frequency adjacent cell to the preset parameter;

filtering the PCIs with the first modulus result and the second modulus result which are the same from the PCI candidate list.

6. The method of claim 5G physical cell identity configuration, in which the preset parameters comprise 3, 4 and 30.

7. A 5G physical cell identity configuration apparatus, comprising:

the neighbor cell information acquisition module is used for acquiring neighbor cell frequency point information, neighbor cell PCI and neighbor cell system information of each neighbor cell of the cell to be configured;

the PCI filtering module is used for filtering the candidate PCI in the PCI candidate list according to the adjacent cell frequency point information, the adjacent cell PCI and the adjacent cell system information;

and the PCI configuration module is used for configuring the PCI of the cell to be configured according to the residual candidate PCI in the PCI candidate list.

8. A terminal device comprising a memory and a processor, the memory being configured to store a computer program which, when run on the processor, performs the 5G physical cell identity configuration method of any of claims 1 to 6.

9. The terminal device of claim 8, wherein the terminal device comprises a base station.

10. A readable storage medium, characterized in that it stores a computer program which, when run on a processor, performs the 5G physical cell identity configuration method of any of claims 1 to 6.

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