CN110636638B - Neighbor cell management method, device, base station and storage medium - Google Patents
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Abstract
The embodiment of the invention provides a neighbor cell management method, a neighbor cell management device, a base station and a storage medium, wherein the neighbor cell management method, the neighbor cell management device, the base station and the storage medium acquire cell global identification information of neighbor cells and synchronous signal block information under global identification information of each cell in the neighbor cells, and configure synchronous signal block information under global identification information of one cell in the neighbor cells as one neighbor cell instance, namely set all synchronous signal block information related to global identification information of one cell in the neighbor cells as one neighbor cell instance; and defining all synchronous signal block information under the cell global identification information as a neighbor cell example by taking the cell global identification information in the cell as a unit, wherein the method is suitable for transmitting a plurality of SSBs at different frequency domain positions, and the SSBs correspond to neighbor cell management of one or more cells of the cell global identification information, thereby effectively solving the problem of complexity of neighbor cell management of the cells in a 5G NR and other communication systems and providing reliable guarantee for maintenance of the communication system.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for managing a neighbor cell, a base station, and a storage medium.
Background
The 5G NR (New Radio) communication system introduces the concept of SSB (Synchronous Signal Block, synchronization signal block), and a real bandwidth cell may send multiple SSBs at different frequency domain locations (i.e. different frequency points) for measurement, timing synchronization, and determining whether to allow access. Because a real bandwidth cell in a 5G NR communication system can send multiple SSBs at different frequency domain positions, corresponding to one or more NCGIs (New Radio Cell Global Identifier, cell global identities in a new radio frequency system), the cell definition of the 5G NR communication system is more complex than that of the existing LTE (Long Term Evolution ) and other communication systems, which brings a great challenge to the management of the neighbor cells of the 5G NR communication system, and a scheme suitable for the neighbor cell management in the 5G NR communication system has not been proposed yet.
Disclosure of Invention
The embodiment of the invention provides a neighbor cell management method, a neighbor cell management device, a base station and a storage medium, which mainly solve the technical problems that: a neighbor management scheme suitable for a 5G NR communication system is provided.
In order to solve the above technical problems, an embodiment of the present invention provides a method for managing a neighbor cell, including:
acquiring cell global identification information of neighbor cells and synchronizing signal block information under each cell global identification information;
and configuring the synchronous signal block information under the global identification information of one cell of the adjacent cell as an adjacent cell example.
In order to solve the above technical problem, an embodiment of the present invention further provides a neighbor cell management apparatus, including:
the information acquisition module is used for acquiring the cell global identification information of the adjacent cells and the synchronous signal block information under each cell global identification information;
and the processing module is used for configuring the synchronous signal block information under the global identification information of one cell of the adjacent cell as an adjacent cell example.
In order to solve the technical problems, the embodiment of the invention also provides a base station, which comprises a processor, a memory and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the neighbor cell management method as described above.
To solve the above technical problem, embodiments of the present invention also provide a computer-readable storage medium storing one or more programs executable by one or more processors to implement the steps of the neighbor cell management method as described above.
The beneficial effects of the invention are as follows:
according to the neighbor cell management method, the neighbor cell management device, the base station and the storage medium provided by the embodiment of the invention, the neighbor cell management scheme comprises the steps of obtaining the global identification information of cells of the neighbor cells and the synchronous signal block information under the global identification information of each cell in the neighbor cells, and configuring the synchronous signal block information under the global identification information of one cell of the neighbor cells as one neighbor cell instance, namely setting all the synchronous signal block information associated with the global identification information of one cell of the neighbor cells as one neighbor cell instance; the proposal provided by the embodiment of the invention takes the cell global identification information in the cell as a unit, defines all the synchronous signal block information under the cell global identification information as a neighbor cell example, is suitable for transmitting a plurality of SSBs on different frequency domain positions, and the SSBs correspond to neighbor cell management of one or more cells of the cell global identification information, thereby effectively solving the problem of neighbor cell management complexity of the cells in the 5G NR and other communication systems and providing reliable guarantee for the maintenance of the communication system.
Additional features and corresponding advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of SSB in a real bandwidth cell according to a first embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for managing a neighboring cell according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a first mode of acquiring global identification information of a cell and synchronization signal block information according to a first embodiment of the present invention;
fig. 4 is a flowchart illustrating a second mode of acquiring global identification information and synchronization signal block information of a cell according to the first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a neighbor cell management device according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of a base station structure according to a third embodiment of the present invention;
fig. 7 is a schematic diagram of a neighbor cell example according to a third embodiment of the present invention;
fig. 8 is a schematic diagram of a neighbor discovery flow based on air interface measurement according to a third embodiment of the present invention;
fig. 9 is a schematic diagram of another neighbor discovery flow based on air interface measurement according to the third embodiment of the present invention;
fig. 10 is a schematic diagram of a neighbor cell self-configuration flow based on signaling interaction between base stations according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is given with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment one:
with the development of communication technology, communication systems such as 5G NR and the like are gradually applied, cell definition of the communication systems such as 5G NR and the like is more complex than that of the communication systems such as the existing LTE and the like, and a neighbor cell management method in the existing communication system is not suitable for the communication systems such as 5G NR and the like, which brings great challenges to management of neighbor cells of the 5G NR communication system, and a scheme suitable for neighbor cell management in the 5G NR communication system is not available at present. Aiming at the problem, the embodiment takes the cell global identification (Cell Global Identifier, CGI) information in the cell as a unit, defines all synchronous signal block information under the cell global identification information as a neighbor cell example, is suitable for transmitting a plurality of SSBs at different frequency domain positions, and the SSBs correspond to neighbor cell management of complex cells of one or more cell global identification information, thereby effectively solving the problem of neighbor cell management complexity of the cells in the 5G NR and the like communication system and providing reliable guarantee for the maintenance of the communication system. In order to facilitate understanding, the SSB introduced by the communication system such as 5G NR will be described in the following.
The 5G NR protocol specifies that multiple SSBs can be sent in different frequency domain locations in a real bandwidth cell, and SSBs in partial frequency domain locations can directly and explicitly indicate the sending frequency domain locations of the system information block types (System Information Block, SIB) 1, and by reading SIB1, NCGIs corresponding to the SSBs, that is, SSB information under NCGI information, that is, SSB information associated with the NCGI information, can be obtained. As shown in fig. 1, it is assumed that SSB1, SSB2, and SSB3 are transmitted at three frequency domain positions of one real bandwidth cell, respectively, and configuration information of SSB1 and SSB3 explicitly indicates SIB1 transmission frequency domain positions, and SSB1 and SSB3 each determine their own ncgi=5 and ncgi=6 through SIB1 indicated by itself. The 5G NR protocol specifies that for SSBs that cannot directly and explicitly indicate SIB1, it can be linked to other SSBs that can directly and explicitly indicate SIB1, from which the NCGI to which they belong is indirectly determined. For example, it is assumed that SSB2 in fig. 1 cannot explicitly indicate SIB1, but it is explicitly determined that the configuration information thereof can determine that the ncgi=5 to which the SSB1 belongs itself, that is, the SSB2 can obtain the transmission frequency domain position of SIB1 from the configuration information of SSB1, further read the SIB1 message from the frequency domain position, and determine that the ncgi=5 to which the SSB1 belongs itself from the read SIB1 message.
It should be understood that SSB is not limited to 5G NR communication system, but is applicable to other communication systems after 5G NR according to specific requirements. The method for managing the neighbor cells provided in this embodiment is not limited to the 5G NR communication system, and is also applicable to other communication systems in which SSB is introduced. The neighbor cell management method provided in this embodiment is shown in fig. 2, and includes:
s201: and acquiring the cell global identification information of the neighbor cells and the synchronous signal block information under the global identification information of each cell.
It should be understood that, in this embodiment, the global cell identity may also be different according to the specific communication system, for example, in the 5G NR communication system, the global cell identity may be identified by the NCGI.
It should be understood that, in this embodiment, the cell global identification information and the synchronization signal block information under each cell global identification information may be transferred through any message capable of transferring the cell global identification information and the synchronization signal block information of the neighboring cell, that is, the cell global identification information and the synchronization signal block information under each cell global identification information may be obtained. Including, but not limited to, various configuration information, test information, and the like, for example.
S202: and configuring the synchronous signal block information under the global identification information of one cell of the adjacent cell as an adjacent cell example.
That is, with the global cell identifier information in the neighboring cell as a unit, all the synchronous signal block information under one global cell identifier information is defined as one neighboring cell instance, so that the method is suitable for transmitting multiple SSBs at different frequency domain positions, and the multiple SSBs correspond to the neighboring cell management of one or more cells with global cell identifier information, and for the cells of the communication system such as 5G NR with multiple SSBs and one or more NCGI identifiers, the problem of complexity of neighboring cell management of the cells is effectively solved, and reliable guarantee is provided for the maintenance of the communication system.
For ease of understanding, the following description will be given by way of further example of two exemplary ways of acquiring the cell global identification information of the neighboring cells and the synchronization signal block information under the global identification information of each cell.
Mode one: an example process is shown with reference to fig. 3, comprising:
s301: and receiving the cell configuration information sent by the neighbor cell.
The cell configuration information sent by the neighbor cell includes configuration information of a first serving cell of the neighbor cell (in this example, the serving cell of the neighbor cell is referred to as a first serving cell, which may include one serving cell or may include multiple serving cells), and neighbor cell instance configuration information of the first serving cell, where the first serving cell configuration information includes cell global identification information of the first serving cell and synchronization signal block information under the cell global identification information.
S302: when the neighbor cell instance configuration information of the first serving cell includes cell global identification information of a second serving cell of the home terminal (in this example, the serving cell of the home terminal of the base station is called as the second serving cell, which may include one serving cell or may include a plurality of serving cells), all cell global identification information of the first serving cell and synchronization signal block information under the cell global identification information are acquired.
The method is based on neighbor cell self-configuration acquisition of signaling interaction between base stations. Optionally, in an example, after the base station local end obtains the cell global identifier information of the first service cell and the synchronization signal block information under the cell global identifier information, and configures the synchronization signal block information under one cell global identifier information of the first service cell as one neighboring cell instance, the base station local end may further send the cell configuration information of the base station local end to the neighboring cell, so that the neighboring cell can perform configuration management of its own neighboring cell instance. It should be understood that the base station may not configure information to the neighboring cell.
In addition, it should be understood that, in an example, the Cell configuration information may be triggered and sent to the base station home terminal by the neighbor Cell after the initial configuration of the Cell is completed, or may be sent when a change of the Cell configuration is detected, where the change of the Cell configuration includes, but is not limited to, a change of the configuration information of the base station home terminal serving Cell itself (including, but not limited to, a change of frequency points or PCIs (Physical Cell ID) corresponding to one or more SSBs), a change of the neighbor Cell configuration information of the base station home terminal serving Cell, and so on.
Mode two: an example process is shown with reference to fig. 4, comprising:
s401: and transmitting measurement configuration to the terminal, wherein the measurement configuration comprises frequency points and physical cell identifiers.
Alternatively, in one example, the measurement configuration in this embodiment may be issued when an unknown physical cell identity is detected at a certain frequency point, where the physical cell identity is the unknown physical cell identity.
Optionally, in another example, the measurement configuration may also be issued after detecting that a frequency point of a certain synchronization signal block changes, where the measurement configuration includes a frequency point of the frequency point after the synchronization signal block changes, and the physical cell identifier is a physical cell identifier corresponding to the frequency point after the synchronization signal block changes.
S402: and receiving measurement response information sent by the terminal.
Optionally, the measurement response information in this step may include global cell identifier information and synchronization signal block information under the global cell identifier information, where the global cell identifier information is obtained by the terminal from SIB1 messages corresponding to the frequency point and the physical cell identifier according to a synchronization signal block corresponding to the frequency point.
S403: and extracting the cell global identification information of the neighbor cell and each synchronizing signal block information under the cell global identification information from the received measurement response information.
Optionally, the synchronization signal block information in this embodiment includes at least one of frequency point, physical cell identity PCI, subcarrier spacing, and a master system information block (Master Information Block, MIB) indication of whether access is allowed. For example, in one example, the synchronization signal block information is included in a MIB indication of frequency point, PCI, subcarrier spacing, whether access is allowed.
In this embodiment, after the cell global identification information acquired from the neighboring cell and each piece of synchronization signal block information under the cell global identification information, configuring the synchronization signal block information under one piece of cell global identification information of the neighboring cell as one neighboring cell instance includes:
for each cell global identification information of the adjacent cell, when the cell global identification information does not exist in the adjacent cell instance configuration list of the second service cell of the local terminal, the cell global identification information and the synchronous signal block information below the cell global identification information are directly added into the adjacent cell instance configuration list of the second service cell of the local terminal to serve as an adjacent cell instance.
For each cell global identification information of the neighboring cell, when the cell global identification information exists in the neighboring cell instance configuration list of the local second service cell, but the synchronization signal block information under the cell global identification information is inconsistent with the synchronization signal block information under the cell global identification information in the neighboring cell instance configuration list of the local second service cell, updating the synchronization signal block information under the cell global identification information in the neighboring cell instance configuration list of the local second service cell into the synchronization signal block information under the corresponding cell global identification information under the neighboring cell, and thus completing the updating of the neighboring cell instance.
Aiming at the complexity problem of neighbor management in the existing 5G NR communication system, the neighbor management method provided by the embodiment defines all synchronous signal block information under the global identification information of the cell as one neighbor example, so that the method is suitable for transmitting a plurality of SSBs at different frequency domain positions, and the SSBs correspond to one or more neighbor management of the cells of the global identification information of the cell, thereby providing reliable guarantee for maintenance of the communication system.
Embodiment two:
the present embodiment provides a neighbor cell management apparatus, which may be applied to various base stations, as shown in fig. 5, including:
the information obtaining module 501 is configured to obtain cell global identifier information of a neighboring cell and synchronization signal block information under global identifier information of each cell. It should be understood that, in this embodiment, the global cell identity may also be different according to the specific communication system, for example, in the 5G NR communication system, the global cell identity may be identified by the NCGI. In this embodiment, the global identification information of the cell and the synchronization signal block information under each global identification information of the cell may be transferred through any message capable of transferring the global identification information of the cell and the synchronization signal block information of the neighboring cell, that is, the global identification information of the cell and the synchronization signal block information under each global identification information of the cell may be obtained. Including, but not limited to, various configuration information, test information, and the like, for example.
The processing module 502 is configured to configure synchronization signal block information under global identifier information of a cell of a neighboring cell as a neighboring cell instance. That is, the neighbor cell management device uses the global cell identifier information in the neighbor cell as a unit, defines all the synchronous signal block information under one global cell identifier information as one neighbor cell instance, so as to be suitable for neighbor cell management of cells which can send multiple SSBs on different frequency domain positions and correspond to one or more global cell identifier information, and effectively solves the problem of complexity of neighbor cell management of the cells in the 5G NR and other communication systems with multiple SSBs and one or more NCGI identifiers, and provides reliable guarantee for maintenance of the communication system.
In an example of this embodiment, the information obtaining module 501 is configured to receive cell configuration information sent by a neighboring cell, where the cell configuration information includes neighboring cell own first service cell configuration information and neighboring cell instance configuration information of the first service cell, the first service cell configuration information includes cell global identification information of the first service cell and synchronization signal block information under the cell global identification information, and is configured to obtain, when the neighboring cell instance configuration information of the first service cell includes cell global identification information of a local second service cell, the cell global identification information of the first service cell and synchronization signal block information under the cell global identification information.
At this time, the information obtaining module 501 is based on neighbor cell self-configuration obtaining of signaling interaction between base stations. Optionally, in an example, the information obtaining module 501 obtains global identifier information of each cell in the first serving cell and synchronization signal block information under global identifier information of each cell, and after the processing module 502 configures the synchronization signal block information under global identifier information of one cell in the first serving cell as an adjacent cell instance, cell configuration information of the base station may also be sent to the adjacent cell, so that the adjacent cell performs configuration management of its own adjacent cell instance. It should be understood that the base station may not configure information to the neighboring cell.
In addition, it should be understood that, in an example, the Cell configuration information may be triggered and sent by the neighbor Cell after the initial configuration of the Cell is completed, or may be sent when the neighbor Cell detects that the Cell configuration changes, where the Cell configuration changes include, but are not limited to, a change in configuration information of the serving Cell of the base station local end itself (including, but not limited to, a change in frequency point or PCI (Physical Cell ID) corresponding to one or more SSBs, a change in configuration information of the neighbor Cell of the serving Cell of the base station local end, and so on.
In another example, the information obtaining module 501 is configured to send a measurement configuration to a terminal, where the measurement configuration includes a frequency point and a physical cell identifier, and is configured to receive measurement response information sent by the terminal, where the measurement response information includes global cell identifier information and synchronization signal block information under the global cell identifier information, and the global cell identifier information is obtained by the terminal from SIB1 messages corresponding to the frequency point and the physical cell identifier according to a synchronization signal block corresponding to the frequency point. The information acquisition module 501 extracts cell global identification information of a neighboring cell and each synchronization signal block information under the cell global identification information from the received measurement response information.
Alternatively, in one example, the measurement configuration may be issued by the information acquisition module 501 upon detecting an unknown physical cell identity at a frequency point, the physical cell identity being the unknown physical cell identity.
Optionally, in another example, the measurement configuration may also be issued after detecting that a frequency point of a certain synchronization signal block changes, where the measurement configuration includes a frequency point of the frequency point after the synchronization signal block changes, and the physical cell identifier is a physical cell identifier corresponding to the frequency point after the synchronization signal block changes.
Optionally, the synchronization signal block information in this embodiment includes, but is not limited to, at least one of a frequency point, a physical cell identifier PCI, a subcarrier spacing, and an MIB indication of whether access is allowed.
In an example of this embodiment, the processing module 502 is configured to, for each piece of global identifier information of a neighboring cell, directly add the global identifier information of the cell and the synchronization signal block information below the global identifier information of the cell to the neighboring cell instance configuration list of the second serving cell of the local end as one neighboring cell instance when the global identifier information of the cell does not exist in the neighboring cell instance configuration list of the second serving cell of the local end.
Optionally, in an example of this embodiment, the processing module 502 is further configured to update, for each piece of global identifier information of a neighboring cell, when the piece of global identifier information of the cell already exists in the neighboring cell instance configuration list of the second serving cell of the local terminal, but the piece of synchronization signal block information under the global identifier information of the cell is inconsistent with the piece of synchronization signal block information under the global identifier information of the cell in the neighboring cell instance configuration list of the second serving cell of the local terminal, the piece of synchronization signal block information under the global identifier information of the cell in the neighboring cell instance configuration list of the second serving cell of the local terminal to the piece of synchronization signal block information under the global identifier information of the corresponding cell in the neighboring cell, so that updating of the neighboring cell instance can be completed.
It should be understood that the functions of the information acquisition module 501 and the processing module 502 of the neighbor cell management device in this embodiment may be implemented by a processor or a controller of a base station, which may define all synchronization signal block information under the global identifier information of a cell as one neighbor cell instance for management, and provide a reliable guarantee for maintenance of a communication system.
Embodiment III:
the present embodiment also provides a base station, as shown in fig. 6, which includes a processor 601, a memory 602, and a communication bus 603;
a communication bus 603 for enabling communication connection between the processor 601 and the memory 602;
the processor 601 is configured to execute one or more programs stored in the memory 602 to implement the steps of the neighbor cell management method as described in the above embodiments.
The present embodiment also provides a computer-readable storage medium storing one or more programs executable by one or more processors to implement the steps of the neighbor cell management method as shown in the above embodiments.
For ease of understanding, the present embodiment is further illustrated below in conjunction with an application of the 5G NR communication system as an example.
In this example, the specific content of the 5G NR communication system neighbor cell management method based on SSB includes the following:
and (3) a step of: neighbor cell instance definition
The present embodiment defines all SSB information associated with one NCGI information in a real bandwidth Cell as one neighbor Cell example, for example, referring to fig. 7, it is assumed that Cell a and Cell B are two real bandwidth cells, and since Cell B has two NCGIs, cell B serves as a neighbor Cell of Cell a, and there are two neighbor Cell examples 1 and 2 in Cell a, wherein:
neighbor Cell example 1 is associated with SSB1 and SSB2 at ncgi=5 in Cell B;
neighbor Cell example 2 is associated with SSB3 at ncgi=6 in Cell B.
As shown in fig. 7, cell a also includes two NCGIs, ncgi=7 and ncgi=8, respectively, and the two NCGIs simultaneously have two neighbor Cell instances of Cell B, that is, neighbor Cell instance configuration lists of the two NCGIs are configured with each SSB information in ncgi=5 and each Cell instance of SSB information in ncgi=6 and ncgi=6.
For ease of understanding, this embodiment will be described below by taking two ways of obtaining NCGI information and SSB information as examples.
Example one: neighbor discovery based on air interface measurement
Referring to fig. 8, assuming that the initial Cell B in fig. 7 is an unknown neighbor Cell of Cell a, describing the neighbor Cell discovery procedure based on air interface measurement includes:
s801: cell a finds an unknown PCI for a certain frequency point (SSB corresponding to the frequency point is SSB 1) that does not belong to its own neighbor.
The process of finding an unknown PCI in this embodiment includes, but is not limited to, reporting the unknown PCI by air interface measurement and transmitting the unknown PCI to the master base station MN by the dual-link secondary base station SN.
S802: cell a issues a reported CGI (Cell Global Identifier, cell global identity) measurement configuration of the frequency point PCI to the UE, including the frequency point and the unknown PCI.
S803: the UE reads SIB1 indicated by the frequency point PCI in the Cell B according to the received reported CGI measurement configuration, acquires target NCGI information corresponding to the SSB1 from the SIB1, wherein the target NCGI information simultaneously contains all associated SSBs, and the SSB information in the example comprises but is not limited to frequency points, PCI, subcarrier intervals, MIB indications whether access is allowed or not and the like; when the target NCGI is associated with only one SSB, the information of the SSB associated with the target NCGI may only include MIB indication about whether to allow access, and the base station side may derive the SSB information according to the measurement object by itself, because the base station obtains the information such as the frequency point, the PCI, and the subcarrier interval of the SSB under the target NCGI when obtaining the unknown PCI.
S804: the UE reports the CGI measurement response information, and Cell a may configure the NCGI of Cell B to be its own neighbor Cell instance according to the received NCGI information.
In the above procedure, cell a configures a CGI measurement of SSB1 (one SSB associated with ncgi=5) related frequency PCI for the UE, and since ncgi=5 associates SSB1 and SSB2 simultaneously, cell a configures a CGI measurement of SSB2 related frequency PCI for the UE, so that the same NCGI information can be obtained. In the above procedure, all SSBs associated with the same NCGI in a real bandwidth cell may be reported through one CGI measurement, and a different NCGI in a real bandwidth cell needs to be rediscovered through another measurement.
For example, a CGI measurement procedure in which Cell a configures SSB2 related frequency point PCI for UE will be described as an example. Referring to fig. 9, it is assumed that the initial Cell B in fig. 7 is an unknown neighbor Cell of Cell a, and the neighbor Cell discovery procedure based on air interface measurement includes:
s901: cell a configures SSB 2-related frequency point measurements for the UE.
S902: and the UE measures the SSB2 related frequency point PCI in the Cell B according to the received measurement configuration.
S903: the UE reports SSB1 related frequency point PCI of Cell B to Cell a.
S904: cell A discovers that the UE reports unknown PCI which does not belong to the neighboring Cell, and reports CGI measurement configuration of SSB1 related frequency point PCI to the UE.
S905: the UE reads SIB1 indicated by SSB2 in the Cell B according to the received reported CGI measurement configuration, acquires NCGI=5 corresponding to the SSB1, and simultaneously contains SSB1 and SSB2 associated with the NCGI=5, wherein the SSB information comprises but is not limited to frequency points, PCI, subcarrier intervals, MIB indications whether access is allowed or not and the like;
s906: the UE reports CGI information, and Cell a configures ncgi=5 of Cell B as its own neighbor Cell instance according to the NCGI information.
Similarly, in the above process, cell a configures CGI measurement of SSB2 related frequency PCI for UE, and since ncgi=5 associates SSB1 and SSB2 simultaneously, cell a configures CGI measurement of SSB1 related frequency PCI for UE, which can also obtain the same NCGI information.
The above procedure does not find another ncgi=6 in Cell B and its associated SSB3, and can be rediscovered by Cell a issuing SSB3 related frequency point measurements.
Example two: neighbor cell self-configuration based on signaling interaction between base stations
Referring to fig. 10, the neighbor cell self-configuration procedure based on signaling interaction between base stations includes:
s1001: cell a sends its own serving Cell and neighbor Cell configuration (i.e., cell configuration information) to Cell B through inter-base station signaling interactions.
It should be appreciated that cell configuration information may be signaled specifically by including, but not limited to, xn Setup Request/Response and gNodeB Configuration Update signaling.
S1002: and (3) the Cell B receives the Cell configuration information of the Cell A, detects whether the opposite terminal Cell A configures the NCGI of the own Cell as a neighboring Cell instance, and if so, adds the Cell A as neighboring Cell instances of all NCGIs of the own Cell.
S1003: alternatively, cell B sends its own serving Cell and neighbor configuration to Cell a through inter-base station signaling interactions, including but not limited to Xn Setup Request/Response and gNodeB Configuration Update.
S1004: cell a receives information of Cell B, detects whether the NCGI of the own Cell is configured as a unidirectional neighbor Cell by the opposite Cell B, if so, adds Cell B as a neighbor Cell of all the NCGIs of the own Cell.
In an example, assuming that an initial Cell a configures an ncgi=5 of a Cell B as its own neighbor Cell, and that a Cell B does not configure a Cell a as its own neighbor Cell, a neighbor Cell self-configuration procedure based on signaling interaction between base stations at this time includes:
cell a sends its own Cell configuration information to Cell B through inter-base station signaling interaction, including but not limited to serving Cell configuration information and neighbor Cell instance configuration information, specifically including but not limited to signaling transmission through Xn Setup Request/Response and gNodeB Configuration Update, etc.
Cell B receives the Cell configuration information of Cell a, and finds that ncgi=5 of its own Cell is configured as a neighbor by ncgi=7 and ncgi=8 of Cell a, and Cell B configures ncgi=7 and ncgi=8 of Cell a as a neighbor of its own cells ncgi=5 and ncgi=6.
Cell B sends its own serving Cell and neighbor configuration to Cell a through inter-base station signaling interactions, including but not limited to Xn Setup Request/Response and gNodeB Configuration Update.
Cell a receives information of Cell B, and finds that ncgi=7 and ncgi=8 of its own Cell are configured as neighbor cells by ncgi=5 and ncgi=6 of Cell a, and that itself configures only ncgi=5 of its own neighbor Cell, and Cell a configures ncgi=5 and ncgi=6 of Cell B as neighbor cells of its own Cell ncgi=7 and ncgi=8 at the same time.
It can be seen that, through the above example, all SSBs associated under one NCGI may be defined as one neighbor cell instance, when one or more frequency points or PCIs corresponding to one or more SSBs are changed, the neighbor cell instance is represented as being changed, and at this time, new neighbor cell instance information may be used to replace old neighbor cell instance information. The neighbor cell instance information updating process includes, but is not limited to, the neighbor cell discovery based on air interface measurement and the signaling interaction process based on the base station, and the obtained same NCGI is different in associated SSB configuration, which is not described herein.
The embodiment can solve the complexity problem of neighbor management of the cells in the existing 5G NR system by defining all synchronous signal block information under the global identification information of the cells as one neighbor example by taking the global identification information of the cells in the cells as a unit, thereby effectively solving the complexity problem of neighbor management of the cells in the 5G NR and the like communication system and providing reliable guarantee for maintenance of the communication system.
It will be appreciated by those skilled in the art that the modules or steps of the embodiments of the invention described above may be implemented in a general purpose computing device, they may be centralized on a single computing device, or distributed over a network of computing devices, or they may alternatively be implemented in program code executable by computing devices, such that they are stored in a computer storage medium (ROM/RAM, magnetic or optical disk) and, in some cases, the steps shown or described may be performed in a different order than what is shown or described, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps in them may be fabricated into a single integrated circuit module. Therefore, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a further detailed description of embodiments of the invention in connection with the specific embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (11)
1. A neighbor cell management method, comprising:
acquiring cell global identification information of a neighboring cell and synchronization signal block information under each cell global identification information under the condition that the number of the synchronization signal block information of the neighboring cell is at least two;
and configuring the synchronous signal block information under one cell global identification information of the adjacent cell as an adjacent cell example by taking the cell global identification information as a unit.
2. The neighbor cell management method of claim 1, wherein the acquiring cell global identification information of the neighbor cell and synchronization signal block information under each cell global identification information comprises:
receiving cell configuration information sent by a neighbor cell, wherein the cell configuration information comprises configuration information of a first service cell of the neighbor cell and neighbor cell instance configuration information of the first service cell, and the configuration information of the first service cell comprises cell global identification information of the first service cell and synchronous signal block information under the cell global identification information;
and when the neighbor cell instance configuration information of the first service cell comprises the cell global identification information of the second service cell of the local end, acquiring all cell global identification information of the first service cell and synchronous signal block information under the cell global identification information.
3. The neighbor cell management method of claim 1, wherein the acquiring cell global identification information of the neighbor cell and synchronization signal block information under each cell global identification information comprises:
issuing measurement configuration to a terminal, wherein the measurement configuration comprises frequency points and physical cell identifiers;
and receiving measurement response information sent by the terminal, wherein the measurement response information comprises cell global identification information and synchronous signal block information under the cell global identification information, and the cell global identification information is obtained from a system information block type 1 message corresponding to the frequency point and the physical cell identification by the terminal according to the synchronous signal block corresponding to the frequency point.
4. The neighbor management method of claim 2, wherein the cell configuration information is transmitted by the neighbor cell after completion of cell initial configuration or upon detection of a change in cell configuration.
5. The neighbor cell management method of claim 3, wherein the measurement configuration is issued upon detection of an unknown physical cell identity at a frequency point, the physical cell identity included in the measurement configuration being the unknown physical cell identity;
or alternatively, the first and second heat exchangers may be,
the measurement configuration is configured to detect that a frequency point of a certain synchronization signal block is issued after the frequency point is changed, the frequency point included in the measurement configuration is the frequency point after the synchronization signal block is changed, and the physical cell identifier included in the measurement configuration is the physical cell identifier corresponding to the frequency point after the synchronization signal block is changed.
6. The method for managing a neighboring cell according to any of claims 1-5, wherein configuring synchronization signal block information under global identification information of a cell of the neighboring cell as a neighboring cell instance comprises:
and for each piece of cell global identification information of the adjacent cell, when the cell global identification information does not exist in the adjacent cell instance configuration list of the second service cell of the local terminal, adding the cell global identification information and the synchronous signal block information below the cell global identification information into the adjacent cell instance configuration list of the second service cell of the local terminal to serve as an adjacent cell instance.
7. The method for managing a neighboring cell according to any of claims 1-5, wherein configuring synchronization signal block information under global identification information of a cell of the neighboring cell as a neighboring cell instance comprises:
and for each piece of cell global identification information of the adjacent cell, when the cell global identification information exists in a neighboring cell instance configuration list of the second service cell of the local terminal, and the synchronous signal block information under the cell global identification information is inconsistent with the synchronous signal block information under the cell global identification information in the neighboring cell instance configuration list of the second service cell of the local terminal, updating the synchronous signal block information under the cell global identification information in the neighboring cell instance configuration list of the second service cell of the local terminal into the synchronous signal block information under the cell global identification information in the neighboring cell.
8. The neighbor management method of any of claims 1-5, wherein the synchronization signal block information comprises at least one of a frequency point, a physical cell identity, a subcarrier spacing, a primary system information block indication of whether access is allowed.
9. A neighbor cell management apparatus comprising:
the information acquisition module is used for acquiring the cell global identification information of the adjacent cell and the synchronous signal block information under each cell global identification information under the condition that the synchronous signal block information of the adjacent cell is at least two;
and the processing module is used for configuring the synchronous signal block information under the global identification information of one cell of the adjacent cell as an adjacent cell example by taking the global identification information of the cell as a unit.
10. A base station comprising a processor, a memory and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor is configured to execute one or more programs stored in a memory to implement the steps of the neighbor cell management method according to any of claims 1-8.
11. A computer readable storage medium storing one or more programs executable by one or more processors to implement the steps of the neighbor cell management method of any of claims 1-8.
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