CN111935831B - Frequency band allocation method, device, storage medium, network equipment and terminal - Google Patents
Frequency band allocation method, device, storage medium, network equipment and terminal Download PDFInfo
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- CN111935831B CN111935831B CN202010677967.9A CN202010677967A CN111935831B CN 111935831 B CN111935831 B CN 111935831B CN 202010677967 A CN202010677967 A CN 202010677967A CN 111935831 B CN111935831 B CN 111935831B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Abstract
The application discloses a frequency band allocation method, a frequency band allocation device, a storage medium, network equipment and a terminal, and relates to the technical field of communication. In the embodiment of the application, a selected target synchronization signal block when a target terminal is accessed is determined, then unallocated frequency bands in all frequency bands corresponding to the target synchronization signal block are searched, and finally the unallocated frequency bands are allocated to the target terminal. Because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block is allocated to the accessed terminal, the situation that a plurality of terminals work on the same frequency band in the same antenna direction can be avoided, signal interference among the terminals is also avoided, and then the error rate of the terminals during data transmission can be reduced and the accuracy of the terminals during data transmission can be improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a frequency band allocation method, an apparatus, a storage medium, a network device, and a terminal.
Background
With the development of communication technology, people have more and more requirements on the use of terminals, and therefore, when a plurality of terminals perform communication, frequency band allocation for different terminals becomes one of important points of research of those skilled in the art.
In the related art, the network device may allow the terminal to operate in a certain frequency band range based on the used communication technology, so as to meet different service requirements and reduce power consumption of the terminal. However, when multiple terminals operate in the same frequency band, signal interference occurs between the terminals.
Disclosure of Invention
The application provides a frequency band allocation method, a frequency band allocation device, a storage medium, network equipment and a terminal, which can solve the technical problem that when a plurality of terminals work in the same frequency band range, signal interference occurs among the terminals.
In a first aspect, an embodiment of the present application provides a frequency band allocation method, which is applied to a network device, and the method includes:
determining a target synchronous signal block selected when a target terminal is accessed;
searching unallocated frequency bands in all frequency bands corresponding to the target synchronous signal block;
and allocating the unallocated frequency band to the target terminal.
In a second aspect, an embodiment of the present application provides a frequency band allocation method, which is applied to a terminal, and the method includes:
selecting a target synchronous signal block, and accessing network equipment according to the target synchronous signal block;
and receiving the frequency band allocated by the network equipment, and working on the frequency band, wherein the frequency band is an unallocated frequency band searched by the network equipment in all frequency bands corresponding to the target synchronous signal block.
In a third aspect, an embodiment of the present application provides a frequency band allocation apparatus, which is applied to a network device, and the apparatus includes:
the direction determining module is used for determining a target synchronous signal block selected when a target terminal is accessed;
the frequency band searching module is used for searching unallocated frequency bands in all frequency bands corresponding to the target synchronous signal block;
and the frequency band allocation module is used for allocating the unallocated frequency band to the target terminal.
In a fourth aspect, an embodiment of the present application provides a frequency band allocation apparatus, which is applied to a terminal and includes
The access module is used for selecting a target synchronous signal block and accessing the network equipment according to the target synchronous signal block;
and the working module is used for receiving the frequency band allocated by the network equipment and working on the frequency band, wherein the frequency band is an unallocated frequency band searched by the network equipment in all frequency bands corresponding to the target synchronous signal block.
In a fifth aspect, the present application provides a computer storage medium storing a plurality of instructions, which are adapted to be loaded by a processor and executed to implement the steps of the method described above.
In a sixth aspect, an embodiment of the present application provides a network device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the steps of the method described above.
In a seventh aspect, an embodiment of the present application provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method described above.
The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:
the application provides a frequency band allocation method, which comprises the steps of firstly determining a target synchronous signal block selected when a target terminal is accessed, then searching unallocated frequency bands in all frequency bands corresponding to the target synchronous signal block, and finally allocating the unallocated frequency bands to the target terminal. Because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block is allocated to the accessed terminal, the situation that a plurality of terminals work on the same frequency band in the same antenna direction can be avoided, signal interference among the terminals is also avoided, and then the error rate of the terminals during data transmission can be reduced and the accuracy of the terminals during data transmission can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exemplary system architecture diagram of a frequency band allocation method according to an embodiment of the present application;
fig. 2 is a system interaction diagram of a frequency band allocation method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of a frequency band allocation method according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating an example of transmission and reception of a synchronization signal block according to an embodiment of the present application;
fig. 5 is a schematic flow chart of a frequency band allocation method according to another embodiment of the present application;
fig. 6 is a schematic diagram illustrating an example of a data storage manner of a database according to another embodiment of the present application;
fig. 7 is a flowchart illustrating a frequency band allocation method according to another embodiment of the present application;
fig. 8 is a schematic structural diagram of a frequency band allocation apparatus according to another embodiment of the present application;
fig. 9 is a schematic structural diagram of a frequency band allocation apparatus according to another embodiment of the present application;
fig. 10 is a schematic structural diagram of a frequency band allocation apparatus according to another embodiment of the present application;
fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the features and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
Fig. 1 is an exemplary system architecture diagram of a frequency band allocation method according to an embodiment of the present disclosure.
As shown in fig. 1, the system architecture may include at least one target terminal 110, a network device 120, and a network 130, the network 130 being used to provide a medium for communication links between the terminals. The network 130 may include various types of wired or wireless communication links, such as: the wired communication link includes optical fiber, twisted pair wire or coaxial cable, and the Wireless communication link includes bluetooth communication link, wireless-Fidelity (Wi-Fi) communication link or microwave communication link.
The target terminal 110 may be hardware or software. When the target terminal 110 is hardware, it may be various electronic devices having a display screen, including but not limited to smart phones, tablet computers, laptop portable computers, desktop computers, and the like. When the target terminal 110 is software, it may be installed in the electronic devices listed above. Which may be implemented as a plurality of software or software modules (e.g., for providing distributed services) or as a single software or software module, and is not particularly limited herein.
The network device 120 is an interface device for accessing the internet of a mobile device, and is a form of a radio station, which refers to a radio transceiver station for information transmission between the mobile device and a mobile terminal through a mobile communication switching center in a certain radio coverage area.
The target terminal 110 may have installed thereon various communication client applications, such as: drawing applications, video recording applications, video playing applications, voice capture applications, voice interaction applications, search-type applications, instant messaging tools, mailbox clients, social platform software, and the like.
Further, the Network devices 120 correspond to Public Land Mobile networks or operator identities (PLMNs), respectively. For network devices of different PLMNs, for the same standard communication technology, the corresponding frequency bands are different. For example, the frequency band range of the LTE technology corresponding to PLMN for china mobile includes 1880-1900MHz (20M), 2320-2370MHz (50M), 2575-2635MHz (65M); the frequency range of the LTE system technology corresponding to the PLMN in China Unicom comprises 2300-2320MHz (20M) and 2555-2575MHz (20M); the frequency band range of the LTE system technical area corresponding to the PLMN which is China telecom comprises 2370-2390MHz (20M) and 2635-2655MHz (20M).
It should be understood that the number of target terminals, networks, and network devices in fig. 1 is merely illustrative, and any number of target terminals, networks, and network devices may be used according to implementation needs.
Referring to fig. 2, fig. 2 is a system interaction diagram of a frequency band allocation method according to an embodiment of the present application, and a system interaction process in the frequency band allocation method will be described with reference to fig. 1 and fig. 2.
S201, the target terminal selects a target synchronous signal block in the direction of a target antenna and accesses the network equipment according to the target synchronous signal block.
S202, the network equipment determines a target synchronization signal block in the target antenna direction selected when the target terminal is accessed.
S203, the network device searches unallocated frequency bands in all frequency bands corresponding to the target synchronous signal block.
When the network device searches for an unallocated frequency band of all frequency bands corresponding to the target synchronization signal block, the specific execution steps include: acquiring a signal identifier of a target synchronization signal block and a terminal identifier of a target terminal; searching the allocated frequency band corresponding to the signal identifier in a database; and selecting one or more frequency bands different from the allocated frequency band from all the frequency bands corresponding to the target synchronous signal block as unallocated frequency bands.
And S204, the network equipment allocates the unallocated frequency band to the target terminal.
When the network device allocates the unallocated frequency band to the target terminal, the specific execution steps include: transmitting frequency band allocation information carrying a target frequency band to a target terminal corresponding to the terminal identifier, wherein the target frequency band is any one of unallocated frequency bands, and the frequency band allocation information is used for indicating the target terminal to work on the target frequency band; and adding the target frequency band, the signal identifier and the terminal identifier into a database.
S205, the target terminal receives the target frequency band allocated by the network equipment and works on the target frequency band.
Optionally, when the network device detects that the target terminal leaves the target frequency band, the signal identifier, and the terminal identifier in the database are deleted.
Optionally, when the network device detects that the target terminal is switched from the target frequency band to another frequency band, the target frequency band, the signal identifier, and the terminal identifier in the database are updated.
S206, when the network equipment finds that the unallocated frequency bands do not exist in all the frequency bands corresponding to the target synchronous signal block, acquiring all terminals connected to the target synchronous signal block; and determining the reference terminal with the priority lower than that of the target terminal in all the terminals, reducing the frequency band of the reference terminal, and taking the reduced frequency band as the unallocated frequency band.
In the embodiment of the application, a target synchronization signal block in a target antenna direction selected when a target terminal is accessed is determined, unallocated frequency bands in all frequency bands corresponding to the target synchronization signal block are searched, and the unallocated frequency bands are allocated to the target terminal. Because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction is allocated to the accessed terminal, the situation that a plurality of terminals work on the same frequency band in the same antenna direction can be avoided, signal interference among the terminals is avoided, and then the error rate of the terminals during data transmission can be reduced and the accuracy of the terminals during data transmission can be improved.
Referring to fig. 3, fig. 3 is a schematic flowchart illustrating a frequency band allocation method according to an embodiment of the present disclosure.
In the embodiment of the present application, a frequency band allocation method is applied to a network device, that is, an execution subject of the embodiment of the present application may be considered as a network device. It can be understood that, when performing communication or data transmission between a terminal and a network device, the terminal needs to operate on a frequency band supported by the network device, so in this embodiment of the present application, the frequency band allocation method mainly involves that the network device allocates a frequency band to the terminal that is within a coverage range of the network device and is accessed to the network device, so that the terminal operates on the frequency band allocated by the network device. As shown in fig. 3, a method for allocating frequency bands includes:
s301, determining a target synchronous signal block selected when the target terminal is accessed.
Optionally, the network device may be disposed at a specific location according to an actual situation, the network device may have multiple antennas or antenna devices, and different antennas may be disposed or installed in different directions, so that different antennas may transmit wireless Signals towards different antenna directions with the network device as a midpoint, where the wireless Signals may be Synchronization Signal blocks, where the Synchronization Signal blocks are Synchronization Signals and PBCH (Synchronization Signal and PBCH block, SSB) blocks, and are composed of three parts, namely Primary Synchronization Signals (PSS), secondary Synchronization Signals (SSS), and PBCH, and uplink resources may also be associated or carried in the Synchronization Signal blocks, where the uplink resources are Physical Random Access Channel (PRACH) resources. The PRACH is an Access Channel when a terminal starts to initiate a call, and after receiving a Fast Physical Access Channel (FPACH) response message, the terminal sends an RRC Connection Request message on the PRACH Channel according to information indicated by the Node B to establish an RRC Connection, so as to Access to a network device.
Further, the total range covered by the wireless signals in different antenna directions may be considered as the coverage range of the network device, that is, as long as the terminal in the coverage range of the network device can receive the synchronization signal block, but since the positions of the terminal in the coverage range of the network device are different relative to the network device, the signal quality between the terminal and the network device may be inconsistent after the different terminals access the network device by selecting different antenna directions. The terminal which enters the coverage area of the network equipment and has not been allocated with the frequency band can be defined as a target terminal, and after the target terminal enters the coverage area of the network equipment, a target synchronous signal block in the antenna direction with the optimal signal quality can be preferentially selected to access the network equipment.
Referring to fig. 4, fig. 4 is an exemplary schematic diagram of transmission and reception of a synchronization signal block according to an embodiment of the present invention, as shown in fig. 4, a network device forms a plurality of transmission beams or reception beams, such as 0, 1, 2, 8230, 7, by using a beam forming technique, such as digital beam forming or analog beam forming, and transmits or receives periodically (e.g., every 10 ms). The angle covered by each beam may be the same or different, and there may be overlapping portions between beams with different coverage angles, for example, a network device may transmit control information using a beam with a wider coverage angle and transmit data information using a beam with a narrower coverage angle. The terminals (UE 1 and UE2 in fig. 4) may receive information transmitted by the network device within the coverage of one or more beams or beam sets or beam groups therein.
The terminal may also form multiple receive beams through beamforming techniques, and determine to use one or more receive beams for reception corresponding to the downlink beams used by the network device. For convenience of description, the beams referred to in the embodiments of the present application may refer to a single or a plurality of beams.
Accordingly, a downlink transmission beam of a network device and a corresponding reception beam of a user device, or an uplink transmission beam of a user device and a corresponding reception beam of a network device, may be referred to as a pair of beam pairs, and a transmission link formed by the beam pair is referred to as a beam pair link. When the beam of the network device or the user equipment conforms to the beam correspondence characteristic, the corresponding reception beam may be determined from the transmission beam or the corresponding transmission beam may be determined from the reception beam.
The beam pair may include a transmission beam of a transmitting end and a reception beam of a receiving end, or, also referred to as an uplink beam or a downlink beam. For example, the beam pair may comprise a transmission beam of the network device or a reception beam of the user device, or a transmission beam of the user device or a reception beam of the network device.
Specifically, in this embodiment, in order to facilitate the target terminal to select an antenna direction with the best signal quality to access the network device, the network device 420 may continuously or after detecting that the target terminal 410 exists within the coverage area of the network device 420, combine the synchronization signal blocks 430 corresponding to different antenna directions into one synchronization signal block set, broadcast the different signal blocks 430 corresponding to each antenna direction in sequence in time, and the target terminal 410 within the coverage area of the network device 420 may receive the synchronization signal blocks 430 broadcast by the network device 420 in each antenna direction and test the signal quality corresponding to the synchronization signal blocks 430 in each antenna direction in sequence.
Optionally, the signal quality corresponding to the synchronization signal block may include any one or more of a data transmission rate, a signal strength, a data packet loss rate, and a data delay, and the target terminal may select a target synchronization signal block with an optimal signal quality according to the measured signal quality of each synchronization signal block, and decode the target synchronization signal block with the optimal signal quality to obtain an uplink resource carried in the target synchronization signal block, where the uplink resource may include a network configuration and an access parameter of the network device, and therefore the target terminal may access the network device according to the uplink resource, that is, establish a connection between the target terminal and the network device.
After the target terminal accesses the network device, the network device may determine, according to the uplink resource used when the target terminal accesses the network device, the antenna direction selected when the target terminal accesses the network device, and determine that the antenna direction is the target antenna direction, so that the network device may also determine the target synchronization signal block of the target antenna direction selected when the target terminal accesses the network device.
S302, searching unallocated frequency bands in all frequency bands corresponding to the target synchronous signal block.
It is understood that in the communication technology between the network device and the terminal, a partial Broadband (BWP) technology may be used, so that the terminal accessing the network device may operate on a certain frequency Band among frequency bands supported by the network device. Therefore, after the target terminal accesses the network device from the target synchronization signal block in the target antenna direction, the network device may search an unallocated frequency band in all frequency bands corresponding to the target synchronization signal block in the target antenna direction, where the network device allocates frequency bands to the synchronization signal blocks in different antenna directions, the frequency bands corresponding to different synchronization signal blocks may be different or partially overlapped, all frequency bands corresponding to the target synchronization signal block in the target antenna direction may be considered as a preset frequency band allocated to the target synchronization signal block in the target antenna direction by the network device, and the unallocated frequency band represents a frequency band which is not occupied by other terminals in all frequency bands corresponding to the target synchronization signal block, that is, an allocated frequency band in all frequency bands corresponding to the target synchronization signal block, and one or more different frequency bands, where the unallocated frequency band is in an idle state.
After the network device finds the unallocated frequency bands in all the frequency bands corresponding to the target synchronization signal block, the unallocated frequency bands can be marked, and the marked frequency bands become the allocated frequency bands in all the frequency bands corresponding to the target synchronization signal block, so that after a new terminal is accessed to the network device, the network device can quickly find the unallocated frequency bands in all the frequency bands corresponding to the target synchronization signal block based on the allocated frequency bands in all the frequency bands corresponding to the target synchronization signal block.
And S303, allocating the unallocated frequency bands to the target terminal.
After the network device finds the unallocated frequency band, it may send information carrying the unallocated frequency band to the target terminal, and after receiving the information, the target terminal may operate on the unallocated frequency band based on the information. Because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction is allocated to the accessed terminal, that is, the accessed terminal works on the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction, even if a plurality of terminals in the same antenna direction are avoided to work, because the plurality of terminals respectively work on different frequency bands corresponding to the target synchronization signal block in the same antenna direction, the signal interference between the terminals in the same antenna direction is also avoided, the error rate of the terminal in data transmission can be reduced, and the accuracy of the terminal in data transmission can be improved.
In the embodiment of the application, a target synchronization signal block in a target antenna direction selected when a target terminal is accessed is determined, then unallocated frequency bands in all frequency bands corresponding to the target synchronization signal block are searched, and finally the unallocated frequency bands are allocated to the target terminal. Because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction is allocated to the accessed terminal, the situation that a plurality of terminals work on the same frequency band in the same antenna direction can be avoided, signal interference among the terminals is avoided, and then the error rate of the terminals during data transmission can be reduced and the accuracy of the terminals during data transmission can be improved.
Referring to fig. 5, fig. 5 is a schematic flow chart of a frequency band allocation method according to another embodiment of the present application.
As shown in fig. 5, a method for allocating frequency bands includes:
s501, determining a target synchronous signal block selected when a target terminal is accessed.
For the description of step S501, please refer to the detailed description in step S301, which is not repeated here.
S502, acquiring a signal identifier of the target synchronization signal block and a terminal identifier of the target terminal.
After the target terminal accesses the network device from the target antenna direction based on the target synchronization signal block of the target antenna direction, that is, the connection is established between the target terminal and the network device, so that the network device obtains the signal identifier of the target synchronization signal block and the terminal identifier of the target terminal, wherein the network device obtains the signal identifier of the target synchronization signal block and the terminal identifier of the target terminal in a manner that the network device obtains the signal identifier of the target synchronization signal block and the terminal identifier of the target terminal from uplink resources when the target terminal accesses the network device; after the connection between the target terminal and the network device is established, the target terminal sends the identification information carrying the signal identification of the target synchronization signal block and the terminal identification of the target terminal to the network device, and the network device acquires the signal identification of the target synchronization signal block and the terminal identification of the target terminal from the identification information.
S503, searching the allocated frequency band corresponding to the signal identification in the database.
Optionally, a database may be set on the network device side, where the database is used to store allocation conditions of all frequency bands corresponding to synchronization signal blocks in different antenna directions of the network device. In order to facilitate the search of the allocated frequency band corresponding to the signal identifier in the database, the signal identifier of each synchronization signal block may be stored in the database in correspondence with the allocated frequency band.
The signal identifier and the allocated frequency band of each synchronization signal block in the database may be stored in various manners, such as a table, a matrix, or key value pairs, and the storage manner of data in the database is described below in terms of the storage manner of key value pairs.
Fig. 6 is a schematic diagram illustrating an example manner of storing data in a database according to another embodiment of the present application.
As shown in fig. 6, the database includes a plurality of groups of key value pairs, each group of key value pairs is used to store a signal identifier of a synchronization signal block and a terminal identifier of a terminal of an allocated frequency band, and each specific group of key value pairs includes a buffer key and a buffer value corresponding to the buffer key, where one buffer key is used to store a signal identifier of a synchronization signal block, and one buffer value is used to store a terminal identifier of a terminal of an allocated frequency band and an allocated frequency band in all frequency bands corresponding to the signal identifier of the synchronization signal block. For example, in fig. 6, a set of key value pairs in which a buffer key stores a signal identifier of a target synchronization signal block in a target antenna direction, and a buffer value in the set of key value pairs stores a signal identifier of a target synchronization signal block in the target antenna direction, where the buffer value in the set of key value pairs corresponds to an allocated frequency band in all frequency bands and a terminal identifier of a terminal allocated to the allocated frequency band. The database stores data through the cache keys, the signal identification of the target synchronization signal block in the target antenna direction corresponds to the allocated frequency band in all frequency bands, and the terminal identification of the terminal allocated with the allocated frequency band is also in one-to-one correspondence.
After the network device obtains the signal identifier of the target synchronization signal block in the target antenna direction, a target cache key storing the signal identifier of the target synchronization signal block in the target antenna direction can be searched in cache keys of the database, and a target cache value corresponding to the target cache key is obtained, so that the signal identifier of the target synchronization signal block in the target antenna direction stored in the target cache value corresponds to the allocated frequency bands in all the frequency bands.
S504, one or more frequency bands different from the allocated frequency band are selected from all the frequency bands corresponding to the target synchronization signal block as unallocated frequency bands.
After the signal identifier of the target synchronization signal block in the target antenna direction is found in the database to correspond to the allocated frequency band in all frequency bands, all frequency bands corresponding to the target synchronization signal block in the target antenna direction can be obtained, then one or more frequency bands different from the allocated frequency band can be selected from all frequency bands corresponding to the target synchronization signal block as unallocated frequency bands, the unallocated frequency bands represent frequency bands not occupied by other terminals in all frequency bands corresponding to the target synchronization signal block, that is, the allocated frequency bands in all frequency bands corresponding to the target synchronization signal block, and different one or more frequency bands, and at this time, the unallocated frequency bands are in an idle state.
And S505, transmitting the frequency band allocation information carrying the target frequency band to the target terminal corresponding to the terminal identifier, wherein the target frequency band is any one of the unallocated frequency bands, and the frequency band allocation information is used for indicating the target terminal to work on the target frequency band.
After searching for the unallocated frequency bands in all the frequency bands corresponding to the target synchronization signal block, frequency band allocation information carrying the target frequency band may be generated, and then the frequency band allocation information carrying the target frequency band is sent to the target terminal corresponding to the terminal identifier according to the acquired terminal identifier of the target terminal. Since the unallocated frequency band includes one or more frequency bands, any one of the unallocated frequency bands may be selected as the target frequency band, and then the frequency band allocation information is used to indicate the target terminal to operate on the target frequency band, that is, after the target terminal receives the frequency band allocation information carrying the target frequency band, the relevant network setting may be performed so that the target terminal may operate on the target frequency band.
S506, adding the target frequency band, the signal identification and the terminal identification to a database.
Optionally, the target frequency band, the signal identifier, and the terminal identifier may also be added to the database, so that the database identifies the target frequency band corresponding to the target synchronization signal block to which the unallocated frequency band belongs, and the specific identification manner may be that the target frequency band to be allocated to the target terminal is marked as the allocated frequency band corresponding to the signal identifier of the target synchronization signal block, and the target frequency band, the terminal identifier of the target terminal and the signal identifier of the target synchronization signal block are corresponding. When the database adopts the data storage manner as shown in fig. 6, the target frequency band and the terminal identifier of the target terminal may be stored in the cache value corresponding to the cache key in which the signal identifier of the target synchronization signal block is stored, so that the network device may quickly and accurately obtain the allocated frequency band corresponding to the signal identifier searched in the database.
And S507, deleting the target frequency band, the signal identifier and the terminal identifier in the database when the target terminal is detected to leave the target frequency band.
In order to ensure timely update of unallocated frequency bands in frequency bands corresponding to synchronization signal blocks in different antenna directions and improve the utilization rate of the frequency bands corresponding to the synchronization signal blocks, when it is detected that a target terminal leaves a target frequency band, that is, when it is detected that the target terminal does not work on the target frequency band, for example, the target terminal leaves the coverage area of a network device, the target frequency band, a signal identifier and a terminal identifier in a database may be deleted, and a specific deletion mode may be that the target frequency band is unmarked as an allocated frequency band corresponding to the signal identifier of the target synchronization signal block, and the target frequency band and the terminal identifier of the target terminal are unmarked as corresponding to the signal identifier of the target synchronization signal block. When the database adopts the data storage manner as shown in fig. 6, the target frequency band and the terminal identifier of the target terminal may be deleted from the cache value corresponding to the cache key in which the signal identifier of the target synchronization signal block is stored, so as to delete the target frequency band, the signal identifier and the terminal identifier in the database.
And S508, when the target terminal is detected to be switched to other frequency bands from the target frequency band, updating the target frequency band, the signal identifier and the terminal identifier in the database.
In order to ensure timely update of unallocated frequency bands in frequency bands corresponding to synchronization signal blocks in different antenna directions and improve utilization rate of the frequency bands corresponding to the synchronization signal blocks, when it is detected that a target terminal is switched from a target frequency band to other frequency bands, that is, when it is detected that the target terminal is switched from the target frequency band to other frequency bands to operate, for example, when the target terminal is switched from a first frequency band of a network device to a second frequency band of the network device to operate within a coverage area of the network device, the target frequency band, a signal identifier and a terminal identifier in a database may be updated, and a specific updating manner may be that a cancellation flag of the target frequency band allocated to the target terminal is marked as an allocated frequency band corresponding to a signal identifier of the target synchronization signal block in the target antenna direction, and the cancellation flag of the target frequency band and the terminal identifier of the target terminal is corresponding to a signal identifier of the target synchronization signal block in the target antenna direction. And then marking the new unallocated frequency band to be allocated to the target terminal as an allocated frequency band corresponding to the signal identifier of the synchronization signal block in the new antenna direction, and corresponding the new unallocated frequency band and the terminal identifier of the target terminal to the signal identifier of the synchronization signal block in the new antenna direction.
And S509, when the unallocated frequency bands do not exist in all the frequency bands corresponding to the target synchronization signal block, acquiring all the terminals connected to the target synchronization signal block.
It can be understood that all frequency bands corresponding to the target synchronization signal block in the target antenna direction are limited by a certain frequency band range, and therefore, a situation that all frequency bands corresponding to the target synchronization signal block in the target antenna direction are allocated may occur, that is, all frequency bands corresponding to the target synchronization signal block in the target antenna direction are occupied, and there is no idle situation in all frequency bands corresponding to the target synchronization signal block in the target antenna direction.
S5010, determining reference terminals with priorities lower than that of the target terminal in all the terminals, reducing the frequency bands of the reference terminals, and taking the reduced frequency bands as the unallocated frequency bands.
Optionally, all terminals connected to the target synchronization signal block perform data or signal interaction with the network device based on the type of the data service, so that the priority of each terminal may be determined according to the type of the data service of different terminals, for example, the type of the data service may be a data service of browsing a web page, or a data service of downloading a file, the priorities of different data services may be customized, when a terminal performs data or signal interaction with the network device based on a high-priority data service, it may be considered that the priority of the terminal is also higher, so that the priority among the terminals may be determined based on the type of the data service of each terminal, after the priorities of all terminals are obtained, a reference terminal having a lower priority than the target terminal among all terminals may be determined, then a frequency band in which the reference terminal is in use or in operation is narrowed, and the narrowed frequency band is used as an unallocated frequency band, and the unallocated frequency band is allocated to the target terminal, so that the target terminal operates on the unallocated frequency band.
Another possible implementation manner is that when a situation occurs that all frequency bands corresponding to the target synchronization signal block in the target antenna direction are allocated, the network device may instruct the target terminal to select a synchronization signal block in another antenna direction except for the target antenna direction for access, and may also implement allocation of an unallocated frequency band to the target terminal.
In the embodiment of the application, by acquiring the signal identifier of the target synchronization signal block and the terminal identifier of the target terminal, then searching the allocated frequency band corresponding to the signal identifier in the database, and finally selecting one or more frequency bands different from the allocated frequency band from all the frequency bands corresponding to the target synchronization signal block as the unallocated frequency band, because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction is allocated to the accessed terminal, it is possible to avoid that a plurality of terminals work on the same frequency band in the same antenna direction, and thus, signal interference between terminals is avoided, and the error rate when the terminals perform data transmission can be reduced and the accuracy when the terminals perform data transmission is improved.
Referring to fig. 7, fig. 7 is a flowchart illustrating a frequency band allocation method according to another embodiment of the present application.
As shown in fig. 7, a frequency band allocation method in this embodiment is applied to a terminal, and the frequency band allocation method includes:
s701, selecting a target synchronous signal block and accessing network equipment according to the target synchronous signal block.
Optionally, a terminal that enters a coverage area of the network device and has not been allocated with a frequency band may be defined as a target terminal, after the target terminal enters the coverage area of the network device, a synchronization signal block in an antenna direction with an optimal signal quality may be preferentially selected to access the network device, where the signal quality corresponding to the synchronization signal block may include any one or more of a data transmission rate, a signal strength, a data packet loss rate, and a data delay, and the target terminal may select a target synchronization signal block with an optimal signal quality according to the measured signal quality of each synchronization signal block, and decode the target synchronization signal block with the optimal signal quality to obtain an uplink resource carried in the target synchronization signal block, where the uplink resource may include a network configuration and an access parameter of the network device, so that the target terminal may access the network device according to the uplink resource, that is, the target terminal may establish a connection with the network device.
S702, receiving the frequency band allocated by the network equipment, and working on the frequency band, wherein the frequency band is an unallocated frequency band searched by the network equipment in all frequency bands corresponding to the target synchronous signal block.
When a target terminal accesses a network device from a target synchronization signal block in a target antenna direction, the network device may search an unallocated frequency band in all frequency bands corresponding to the target synchronization signal block in the target antenna direction, where the network device allocates frequency bands to synchronization signal blocks in different antenna directions, the frequency bands corresponding to different synchronization signal blocks may be different or partially overlapped, all frequency bands corresponding to the target synchronization signal block in the target antenna direction may be considered as preset frequency bands allocated to the target synchronization signal block in the target antenna direction by the network device, the unallocated frequency band represents a frequency band which is not occupied by other terminals in all frequency bands corresponding to the target synchronization signal block, that is, the allocated frequency bands in all frequency bands corresponding to the target synchronization signal block, and one or more different frequency bands, and at this time, the unallocated frequency band is in an idle state.
After the network device finds the unallocated frequency band, the information carrying the unallocated frequency band may be sent to the target terminal, and the target terminal may operate on the unallocated frequency band based on the information after receiving the information. Because the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction is allocated to the accessed terminal, that is, the accessed terminal works on the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction, even if a plurality of terminals in the same antenna direction are avoided to work, because the plurality of terminals respectively work on different frequency bands corresponding to the target synchronization signal block in the same antenna direction, the signal interference between the terminals in the same antenna direction is also avoided, the error rate of the terminal in data transmission can be reduced, and the accuracy of the terminal in data transmission can be improved.
In the embodiment of the application, since the unallocated frequency band in the frequency band corresponding to the target synchronization signal block in the target antenna direction is allocated to the accessed terminal, the situation that a plurality of terminals work in the same frequency band in the same antenna direction can be avoided, and signal interference among the terminals is also avoided, so that the error rate of the terminals during data transmission can be reduced, and the accuracy of the terminals during data transmission can be improved.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a frequency band allocation apparatus according to another embodiment of the present application.
As shown in fig. 8, in an embodiment of the present application, a frequency band allocation apparatus is applied in a network device, and the frequency band allocation apparatus 800 includes:
a direction determining module 810, configured to determine a target synchronization signal block selected when the target terminal accesses.
A frequency band searching module 820, configured to search an unallocated frequency band of all frequency bands corresponding to the target synchronization signal block.
A frequency band allocating module 830, configured to allocate an unallocated frequency band to a target terminal.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a frequency band allocation apparatus according to another embodiment of the present application.
As shown in fig. 9, in an embodiment of the present application, a frequency band allocation apparatus is applied in a network device, and the frequency band allocation apparatus 900 includes:
a direction determining module 910, configured to determine a target synchronization signal block selected when the target terminal accesses.
An identifier obtaining module 920, configured to obtain a signal identifier of the target synchronization signal block and a terminal identifier of the target terminal.
A frequency band searching module 930, configured to search the allocated frequency band corresponding to the signal identifier in the database.
A frequency band selecting module 940, configured to select one or more frequency bands different from the allocated frequency band from all frequency bands corresponding to the target synchronization signal block as an unallocated frequency band.
A frequency band sending module 950, configured to send frequency band allocation information carrying a target frequency band to a target terminal corresponding to the terminal identifier, where the target frequency band is any one of the unallocated frequency bands, and the frequency band allocation information is used to indicate that the target terminal operates on the target frequency band.
A data saving module 960, configured to add the target frequency band, the signal identifier, and the terminal identifier to the database.
The data deleting module 970 is configured to delete the target frequency band, the signal identifier, and the terminal identifier in the database when it is detected that the target terminal leaves the target frequency band.
And a data updating module 980, configured to update the target frequency band, the signal identifier, and the terminal identifier in the database when it is detected that the target terminal is switched from the target frequency band to another frequency band.
A terminal obtaining module 990, configured to obtain all terminals connected to the target synchronization signal block when it is found that there is no unallocated frequency band in all frequency bands corresponding to the target synchronization signal block.
The frequency band reduction module 9100 is configured to determine a reference terminal with a priority lower than that of the target terminal among all terminals, reduce the frequency band of the reference terminal, and use the reduced frequency band as an unallocated frequency band.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a frequency band allocation apparatus according to another embodiment of the present application.
As shown in fig. 10, in the embodiment of the present application, a frequency band allocation apparatus is applied in a terminal, and the frequency band allocation apparatus 1000 includes:
the access module 1010 is configured to select a target synchronization signal block and access a network device according to the target synchronization signal block.
The working module 1020 is configured to receive a frequency band allocated by the network device and work on the frequency band, where the frequency band is an unallocated frequency band found by the network device in all frequency bands corresponding to the target synchronization signal block.
Embodiments of the present application also provide a computer storage medium, which may store a plurality of instructions adapted to be loaded by a processor and to perform the steps of the method according to any of the above embodiments.
Embodiments of the present application further provide a network device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor executes the steps of the method in any one of the above embodiments.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 11, the terminal 1100 may include: at least one processor 1101, at least one network interface 1104, a user interface 1103, a memory 1105, at least one communication bus 1102.
Wherein a communication bus 1102 is used to enable the connection communication between these components.
The user interface 1103 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 1103 may also include a standard wired interface and a wireless interface.
The network interface 1104 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).
The Memory 1105 may include a Random Access Memory (RAM) or a Read-Only Memory (ROM). Optionally, the memory 1105 includes non-transitory computer-readable storage media. The memory 1105 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 1105 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 1105 may alternatively be at least one storage device located remotely from the processor 1101. As shown in fig. 11, a memory 1105, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a band allocation program.
In the terminal 1100 shown in fig. 11, the user interface 1103 is mainly used as an interface for providing input for a user, and acquiring data input by the user; the processor 1101 may be configured to call the frequency band allocation program stored in the memory 1105, and specifically perform the following operations:
selecting a target synchronous signal block, and accessing the network equipment according to the target synchronous signal block;
and receiving the frequency band allocated by the network equipment, and working on the frequency band, wherein the frequency band is an unallocated frequency band searched by the network equipment in all frequency bands corresponding to the target synchronous signal block. .
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application, which are essential or part of the technical solutions contributing to the prior art, or all or part of the technical solutions, may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the frequency band allocation method, apparatus, storage medium, network device and terminal provided by the present application, for those skilled in the art, according to the ideas of the embodiments of the present application, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be construed as limiting the present application.
Claims (12)
1. A frequency band allocation method is applied to network equipment, and is characterized in that the method comprises the following steps:
determining a target synchronous signal block selected when a target terminal is accessed;
searching the unallocated frequency bands in all the frequency bands corresponding to the target synchronization signal block, including: acquiring a signal identifier of the target synchronization signal block and a terminal identifier of the target terminal; searching the allocated frequency band corresponding to the signal identification in a database; selecting one or more frequency bands different from the allocated frequency band from all the frequency bands corresponding to the target synchronization signal block as unallocated frequency bands;
and allocating the unallocated frequency band to the target terminal.
2. The method of claim 1, wherein the allocating the unallocated frequency band to the target terminal comprises:
and sending frequency band allocation information carrying a target frequency band to a target terminal corresponding to the terminal identifier, wherein the target frequency band is any one of the unallocated frequency bands, and the frequency band allocation information is used for indicating that the target terminal works on the target frequency band.
3. The method of claim 2, wherein after the sending the frequency band allocation information carrying the target frequency band to the target terminal corresponding to the terminal identifier, the method further comprises:
and adding the target frequency band, the signal identification and the terminal identification to the database.
4. The method of claim 3, further comprising:
and deleting the target frequency band, the signal identification and the terminal identification in the database when the target terminal is detected to leave the target frequency band.
5. The method of claim 3, further comprising:
and when the target terminal is detected to be switched to other frequency bands from the target frequency band, updating the target frequency band, the signal identifier and the terminal identifier in the database.
6. The method of claim 1, further comprising:
when the unallocated frequency bands do not exist in all the frequency bands corresponding to the target synchronization signal block, acquiring all terminals connected to the target synchronization signal block;
and determining a reference terminal with a priority lower than that of the target terminal in all the terminals, reducing the frequency band of the reference terminal, and taking the reduced frequency band as the unallocated frequency band.
7. A frequency band allocation method is applied to a terminal, and the method comprises the following steps:
selecting a target synchronous signal block, and accessing network equipment according to the target synchronous signal block;
receiving the frequency band allocated by the network equipment and working on the frequency band, wherein the frequency band is an unallocated frequency band searched by the network equipment in all frequency bands corresponding to the target synchronous signal block;
wherein, the finding, by the network device, of the unallocated frequency bands corresponding to the target synchronization signal block includes: acquiring a signal identifier of the target synchronization signal block and a terminal identifier of a target terminal; searching the allocated frequency band corresponding to the signal identifier in a database; and selecting one or more frequency bands different from the allocated frequency bands as unallocated frequency bands from all the frequency bands corresponding to the target synchronization signal block.
8. A frequency band allocation device is applied to a network device, and the device comprises:
the direction determining module is used for determining a target synchronous signal block selected when a target terminal is accessed;
a frequency band searching module, configured to search an unallocated frequency band of all frequency bands corresponding to the target synchronization signal block, including: acquiring a signal identifier of the target synchronization signal block and a terminal identifier of the target terminal; searching the allocated frequency band corresponding to the signal identification in a database; selecting one or more frequency bands different from the allocated frequency band from all the frequency bands corresponding to the target synchronization signal block as unallocated frequency bands;
and the frequency band allocation module is used for allocating the unallocated frequency band to the target terminal.
9. A frequency band allocation device is characterized in that the device is applied to a terminal and comprises
The access module is used for selecting a target synchronous signal block and accessing the network equipment according to the target synchronous signal block;
the working module is used for receiving the frequency band allocated by the network equipment and working on the frequency band, wherein the frequency band is an unallocated frequency band searched by the network equipment in all frequency bands corresponding to the target synchronous signal block;
wherein, the finding, by the network device, of the unallocated frequency bands corresponding to the target synchronization signal block includes: acquiring a signal identifier of the target synchronization signal block and a terminal identifier of a target terminal; searching the allocated frequency band corresponding to the signal identification in a database; and selecting one or more frequency bands different from the allocated frequency band from all the frequency bands corresponding to the target synchronous signal block as unallocated frequency bands.
10. A computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the steps of the method according to any of claims 1 to 6 or 7.
11. A network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of any one of claims 1 to 6 when the program is executed by the processor.
12. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of claim 7 when executing the program.
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