CN113055895B - Spectrum resource sharing method and device - Google Patents
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- CN113055895B CN113055895B CN201911378446.7A CN201911378446A CN113055895B CN 113055895 B CN113055895 B CN 113055895B CN 201911378446 A CN201911378446 A CN 201911378446A CN 113055895 B CN113055895 B CN 113055895B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Abstract
The invention provides a method and equipment for sharing frequency spectrum resources. The method comprises the steps of determining a first initial sub-band of a ground cell, a second initial sub-band of a null cell and a shared sub-band; and then the first initial sub-band, the second initial sub-band and the shared sub-band are adopted to bear the signaling and/or the service of the first terminal in the ground cell and the second terminal in the air cell, so that the sharing of the frequency spectrum resources between the ground network and the air network is realized, the waste of the frequency spectrum resources is avoided, and the utilization rate of the frequency spectrum resources is improved.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for sharing spectrum resources.
Background
With the continuous development of wireless communication technology, wireless technology is developed from 2G to 5G, the most important and basic wireless spectrum resource in the wireless communication technology is the wireless spectrum resource, and now for 5G system, most of the spectrum resources below 2.6GHz basic coverage layer are allocated. In some special industries, such as the public security industry, due to different requirements of wireless networking performance and/or security, a private network requirement which the user can hopefully belong to and networking requirements of different application scenes are provided, so that the requirement of the 5G broadband system frequency spectrum is more tense.
For example, public safety agencies desire to provide both ground and air network coverage support. In the prior art, if one ground network is adopted to take account of both ground terminal and air terminal access and service bearing, too many ground cells can be detected by the air terminal during air operation, and a plurality of ground cells transmit system messages and beacon channel signals, so that the interference on the air terminal to receive a ground resident cell beacon channel is too large, and the wireless network access and cell residence of the air terminal are influenced. Therefore, based on interference analysis, at present, one ground network is generally established to cover the ground terminal, and another air network is established to cover the air terminal, and the frequency spectrum resources of the two networks are independent and work independently.
Because the number of terminals of the ground network is generally large, and the number of terminals of the air helicopter is generally small, the wireless resources of the ground network are congested and the air network has low service capacity or no service in emergency scenes or major security situations. Under the condition that the air wireless resources are idle or the utilization rate is low, the idle frequency spectrum resources of the air network cannot be used by the terminal of the ground network, so that the waste of the air wireless resources is caused, and the frequency spectrum utilization rate is low.
Disclosure of Invention
The invention provides a method and equipment for sharing frequency spectrum resources, which are used for improving the utilization rate of the frequency spectrum resources.
In a first aspect, the present invention provides a method for sharing spectrum resources, where the method includes:
determining a first initial sub-band of a ground cell, a second initial sub-band of a null cell and a shared sub-band; the first initial sub-band and the second initial sub-band have different frequencies; the shared sub-band is part or all of the first initial sub-band and/or the second initial sub-band;
using the first initial sub-band, the second initial sub-band and the shared sub-band to carry signaling and/or service of a first terminal in the ground cell and a second terminal in the air cell;
the shared sub-band is used for carrying signaling and/or services of the first terminal and/or the second terminal, sub-bands other than the shared sub-band in the first initial sub-band are used for carrying signaling and/or services of the first terminal, and sub-bands other than the shared sub-band in the second initial sub-band are used for carrying signaling and/or services of the second terminal.
Optionally, if the shared subband is part or all of the second initial subband, the using the first initial subband, the second initial subband and the shared subband to carry signaling and/or services of the first terminal in the ground cell and the second terminal in the air cell includes:
and adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell, and adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell.
Optionally, the priority of the first sub-band in the frequency point priorities of the first terminal is higher than the priority of the shared sub-band;
the using the first initial sub-band and the shared sub-band to carry signaling and/or services of the first terminal in the ground cell includes:
adopting the first initial sub-band to bear the signaling and/or the service of the first terminal in the ground cell;
and if the load of the ground cell reaches a first preset threshold value, adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell.
Optionally, the first initial subband is a part of a first bandwidth of the terrestrial cell; the first frequency offset of the synchronization signal and the physical broadcast channel block SSB of the terrestrial cell satisfy the following equation:
first frequency offset = (first bandwidth-first initial subband)/2.
Optionally, if the shared subband is a part or all of the first initial subband, the using the first initial subband, the second initial subband and the shared subband to carry signaling and/or traffic of the first terminal in the ground cell and the second terminal in the air cell includes:
and using the first initial sub-band to carry signaling and/or services of the first terminal in the ground cell, and using the second initial sub-band and the shared sub-band to carry signaling and/or services of the second terminal in the air cell.
Optionally, the priority of the second initial subband in the frequency point priorities of the second terminal is higher than the priority of the shared subband;
the using the second initial sub-band and the shared sub-band to carry signaling and/or traffic of the second terminal in the air cell includes:
adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell;
and if the load of the air cell reaches a second preset threshold value, adopting the second initial sub-band and the shared sub-band to bear the signaling and/or the service of a second terminal in the air cell.
Optionally, the second initial subband is a part of a second bandwidth of the air cell; the second frequency offset of the SSB of the air cell satisfies the following equation:
second frequency offset = (second bandwidth-second initial subband)/2.
Optionally, the method further includes:
and according to the network identifications to which the first terminal and the second terminal respectively belong, respectively routing the signaling and/or the service of the first terminal and the second terminal to the core networks corresponding to the network identifications to which the first terminal and the second terminal respectively belong so as to process the signaling and/or the service.
Optionally, the method further includes:
and updating the configuration of the shared sub-band according to the frequency utilization rate of the shared sub-band and the number of the first terminal and the second terminal.
In a second aspect, the present invention provides an apparatus for sharing spectrum resources, including:
a configuration module, configured to determine a first initial subband of a ground cell, a second initial subband of an empty cell, and a shared subband; the first initial sub-band and the second initial sub-band have different frequencies; the shared sub-band is part or all of the first initial sub-band and/or the second initial sub-band;
a processing module, configured to use the first initial subband, the second initial subband, and the shared subband to carry signaling and/or traffic of a first terminal in the ground cell and a second terminal in the air cell;
the shared sub-band is used for carrying signaling and/or services of the first terminal and/or the second terminal, sub-bands other than the shared sub-band in the first initial sub-band are used for carrying signaling and/or services of the first terminal, and sub-bands other than the shared sub-band in the second initial sub-band are used for carrying signaling and/or services of the second terminal.
Optionally, if the shared subband is part or all of the second initial subband, the processing module is configured to:
and adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell, and adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell.
Optionally, the priority of the first sub-band in the frequency point priorities of the first terminal is higher than the priority of the shared sub-band;
the processing module is used for:
adopting the first initial sub-band to bear the signaling and/or the service of the first terminal in the ground cell;
and if the load of the ground cell reaches a first preset threshold value, adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell.
Optionally, the first initial subband is a part of a first bandwidth of the terrestrial cell; the first frequency offset of the SSB of the terrestrial cell satisfies the following equation:
first frequency offset = (first bandwidth-first initial subband)/2.
Optionally, if the shared subband is a part or all of the first initial subband, the processing module is configured to:
and using the first initial sub-band to carry signaling and/or services of the first terminal in the ground cell, and using the second initial sub-band and the shared sub-band to carry signaling and/or services of the second terminal in the air cell.
Optionally, the priority of the second initial subband in the priorities of the frequency points of the second terminal is higher than the priority of the shared subband;
the processing module is used for:
adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell;
and if the load of the air cell reaches a second preset threshold value, adopting the second initial sub-band and the shared sub-band to bear the signaling and/or the service of a second terminal in the air cell.
Optionally, the second initial subband is a part of a second bandwidth of the air cell; the second frequency offset of the SSB of the air cell satisfies the following equation:
second frequency offset = (second bandwidth-second initial subband)/2.
Optionally, the processing module is further configured to:
and according to the network identifiers to which the first terminal and the second terminal belong, respectively routing the signaling and/or the service of the first terminal and the second terminal to the core networks corresponding to the network identifiers to which the first terminal and the second terminal belong so as to process the signaling and/or the service.
Optionally, the configuration module is further configured to:
and updating the configuration of the shared sub-band according to the frequency utilization rate of the shared sub-band and the number of the first terminal and the second terminal.
In a third aspect, the present invention provides a network device comprising a memory and a processor; the memory is connected with the processor;
the memory for storing a computer program;
the processor is configured to implement the method for sharing spectrum resources according to any one of the first aspect.
In a fourth aspect, the present invention provides a storage medium having stored thereon a computer program which, when executed by a processor, implements a method of sharing spectrum resources as in the first aspect described above.
The invention provides a method and a device for sharing frequency spectrum resources, wherein the method comprises the steps of determining a first initial sub-band of a ground cell, a second initial sub-band of a null cell and a shared sub-band; and then, the first initial sub-band, the second initial sub-band and the shared sub-band are adopted to bear the signaling and/or the service of the first terminal in the ground cell and the second terminal in the aerial cell, so that the sharing of the frequency spectrum resources between the ground network and the aerial network is realized, the waste of the frequency spectrum resources is avoided, and the utilization rate of the frequency spectrum resources is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a network system of a spectrum resource sharing method according to the present invention;
fig. 2 is a schematic flowchart of a method for sharing spectrum resources according to the present invention;
FIG. 3 is a diagram of a shared sub-band according to the present invention;
fig. 4 is a schematic structural diagram of a spectrum resource sharing apparatus according to the present invention;
fig. 5 is a schematic structural diagram of a network device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram of a network system of a spectrum resource sharing method according to the present invention. As shown in fig. 1, the whole network system includes a ground network and an air network which are independent of each other, and the terminal devices in the system are classified into the ground network and the air network according to the use and service conditions, and are bound to the core network of the ground network and the core network of the air network. The terminal equipment such as mobile phones on the ground is divided and attached to the ground network and bound to the core network of the ground network, and the terminal equipment on the air helicopter is divided and attached to the core network of the air network. The binding mode between the terminal device and the core Network may be a RAN Sharing mode based on Public Land Mobile Network Identity (PLMN ID) or a RAN Sharing mode based on Dedicated Core Network (DCN) binding, which is not specifically limited in the present invention.
If a network system has Frequency Division Duplex (FDD) 2x20M spectrum resources, if a 2x20M bandwidth is directly decomposed into two sub-bandwidth spectrums, 2x15M is used for establishing an independent ground network, 2x5M is used for establishing an air network, and the two networks completely and independently operate, then in the case that spectrum resources of one network are in shortage and the other network has idle spectrum resources, the network with the shortage of spectrum resources cannot use the idle resources of the other network, which causes waste of spectrum resources and low utilization rate of spectrum resources. Therefore, the invention realizes the spectrum resource sharing between the two networks by defining the sharing sub-band in the spectrum resource of the ground network and/or the air network, thereby reducing the waste of the spectrum resource and improving the utilization rate of the spectrum resource.
Fig. 2 is a schematic flowchart of a method for sharing spectrum resources according to the present invention. The method is performed by a network device, such as a base station. As shown in fig. 2, the method includes:
s201, determining a first initial sub-band of a ground cell, a second initial sub-band of a null cell and a shared sub-band; the first initial sub-band and the second initial sub-band have different frequencies; the shared sub-band is part or all of the first initial sub-band and/or the second initial sub-band.
In the present embodiment, a description will be given of a ground 5G network and an air 5G network. When a network is built, the frequency spectrum resources are respectively allocated with the carrier frequency and the bandwidth of a 5G cell to a ground 5G network and an air 5G network according to service use conditions, and the carrier frequency and the bandwidth are used for building independent ground 5G cells and air 5G cells; the frequency resources of the Synchronization Signal and physical broadcast channel block (SSB) of the ground 5G cell and the air 5G cell are defined to be staggered in the frequency domain, so that the beacon channel resources of the ground 5G cell and the air 5G cell are separated and do not interfere with each other. And determining the sharing strategy of the ground 5G cell frequency and the air 5G cell frequency according to the carrier frequency and the bandwidth of the ground 5G cell and the air 5G cell, and the number of terminals of the ground 5G network and the air 5G network.
And dividing the frequency spectrum resources into a first initial sub-band of a ground 5G cell and a second initial sub-band of an air 5G cell, wherein the frequencies of the first initial sub-band and the second initial sub-band are different. If it is required that the ground terminal can use the resources of the air 5G network, a shared sub-band is defined in the second initial sub-band of the air 5G network, and the shared sub-band can be used by the ground terminal as well as the air terminal. If it is required that the air terminal can use the resources of the ground 5G network, a shared sub-band is defined in the first initial sub-band of the ground 5G network, and the shared sub-band can be used by the air terminal as well as the ground terminal. If it is required that the terrestrial terminal can use the resources of the air 5G network and at the same time the air terminal can use the resources of the terrestrial 5G network, the shared sub-band may be defined in the first initial sub-band and the second initial sub-band, respectively.
Furthermore, a first bandwidth of the terrestrial 5G network and a second bandwidth of the air 5G network are also associated with the shared sub-band, the first bandwidth being the sum of the first initial sub-band plus a bandwidth that the terrestrial terminal can use the air 5G network, and the second bandwidth being the sum of the second initial sub-band plus a bandwidth that the air terminal can use the terrestrial 5G network.
S202, the first initial sub-band, the second initial sub-band and the shared sub-band are adopted to bear signaling and/or services of the first terminal in the ground cell and the second terminal in the air cell.
The shared sub-band is used for carrying signaling and/or traffic of the first terminal and/or the second terminal, sub-bands other than the shared sub-band in the first initial sub-band are used for carrying signaling and/or traffic of the first terminal, and sub-bands other than the shared sub-band in the second initial sub-band are used for carrying signaling and/or traffic of the second terminal.
For example, when resources of the terrestrial 5G network are tight, signaling and/or traffic of the first terminal may be carried using the shared sub-band in the second preliminary sub-band, or when resources of the air 5G network are tight, signaling and/or traffic of the second terminal may be carried using the shared sub-band in the first preliminary sub-band.
The method for sharing spectrum resources provided by this embodiment determines a first initial subband of a ground cell, a second initial subband of a null cell, and a shared subband; and then the first initial sub-band, the second initial sub-band and the shared sub-band are adopted to bear the signaling and/or the service of the first terminal in the ground cell and the second terminal in the air cell, so that the sharing of the frequency spectrum resources between the ground network and the air network is realized, the waste of the frequency spectrum resources is avoided, and the utilization rate of the frequency spectrum resources is improved.
The method of the present invention is described with reference to specific examples. Optionally, if the shared subband is a part or all of the second initial subband, S202 uses the first initial subband, the second initial subband, and the shared subband to carry signaling and/or traffic of the first terminal in the ground cell and the second terminal in the air cell, including:
and adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell, and adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell.
As shown in fig. 3, assuming that the FDD 2x20M spectrum is currently available, two independent terrestrial 5G networks and aerial 5G networks are constructed. Defining PLMN IDs of a terrestrial 5G network and an aerial 5G network as PLMN ID1 and PLMN ID2 respectively, a home network of a first terminal of the terrestrial 5G network is the terrestrial 5G network of the PLMN ID1, and a home network of a second terminal of the aerial 5G network is the aerial 5G network of the PLMN ID 2.
Assuming that the terrestrial terminals are allowed to use the spectrum resources of the air 5G cell, according to the number of the terrestrial terminals, the number of the air terminals and the traffic model, determining that the first bandwidth of the terrestrial 5G cell is 20M, the second bandwidth of the air-terrestrial 5G cell is 5M, and determining that the first Initial subband Initial Common BWP1 of the terrestrial 5G cell is 15M, and the second Initial subband Initial Common BWP2 of the air 5G cell is 5M, determining a shared subband BWP1 in the second Initial subband. The first Initial subband Initial Common BWP1 and the shared subband BWP1 may both be used to carry signaling and/or traffic for the first terminal in the terrestrial 5G cell, and the second Initial subband Initial Common BWP2 is 5M used to carry signaling and/or traffic for the second terminal in the air 5G cell.
The common parameters of terrestrial 5G cells may be defined as follows:
and (2) SSB: for the configuration of the SSB, the time domain position is fixed, the frequency domain occupies 20rb, and the frequency domain position of the SSB is not at the center of the default first bandwidth C-BWP of the terrestrial 5G cell 20M, and the frequency position configuration of the SSB of the cell is calculated according to the bandwidth of 15M of the Initial BWP In1 corresponding to the Initial Common BWP1 of the first Initial sub-band of the terrestrial 5G cell, so that the frequency Offset needs to be configured for the SSB; as shown In fig. 3, the first frequency Offset = (C-BWP-Initial BWP In 1)/2; after frequency Offset in the frequency domain, the PBCH also frequency-offsets its associated Demodulation Reference Signal (DMRS).
Physical Random Access Channel (PRACH): the sub-band division has no influence on the time domain configuration, and the frequency domain configures the frequency offset of the PRACH according to the frequency position of the carrier center of the 5G cell.
Physical Downlink Control Channel (PDCCH): the configuration of Common parameters of the PDCCH at the cell level is configured according to Initial Common BWP1, and the DMRS of the PDCCH is frequency-offset according to Initial Common BWP1.
Physical Uplink Control Channel (PUCCH): the configuration of the Common parameters of the cell-level PUCCH is configured according to Initial Common BWP1, and the DMRS of the PUCCH is frequency-offset according to Initial Common BWP1.
The air 5G cell common parameter definition can be configured according to the normal cell bandwidth 5M in the prior art.
UE level parameter configuration and scheduling:
a user-Specific PDCCH/PUCCH (UE-Specific PDCCH/PUCCH) at a user level is configured according to an activated subband, initial parameters of a first terminal and a second terminal and a Default subband Default BWP are configured according to an Initial BWP In1 and an Initial BWP In2, respectively, and a Dedicated subband Default BWP is configured according to a UE condition, and if the first terminal is allowed to use a shared subband BWP1 of an air 5G cell, the BWP1 may be configured as a Default BWP of the first terminal.
Optionally, the priority of the first initial subband in the priority of the frequency point of the first terminal is higher than the priority of the shared subband, that is, the first terminal preferentially selects the ground 5G cell for access. Meanwhile, the shared priority of the shared sub-band is also set, for example, the second terminal can be scheduled preferentially, and the shared priority can be used for the first terminal in a shared scheduling mode when the second terminal is idle.
Therefore, the above-mentioned using the first initial subband and the shared subband to carry signaling and/or traffic of the first terminal in the terrestrial cell includes:
adopting the first initial sub-band to bear the signaling and/or the service of the first terminal in the ground cell; and if the load of the ground cell reaches a first preset threshold value, adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell.
The first terminal accesses to a home network, that is, a ground 5G cell, and if the load of the ground 5G cell reaches a first preset threshold, for example, the usage rate of a first Initial subband Initial Common BWP1 of the ground 5G cell reaches 80%, the ground 5G cell starts subband load balancing across carriers. And allocating and scheduling wireless resources for the selected first terminal, such as the terminal of the video service, by adopting a shared sub-band BWP1 of an air 5G cell. And the air 5G cell schedules the first terminal redirected by the ground 5G network to use the shared sub-band frequency resource according to the wireless resource of the cell and the use condition of the shared sub-band.
Optionally, the method may further include:
and according to the network identifiers to which the first terminal and the second terminal belong, respectively routing the signaling and/or the service of the first terminal and the second terminal to the core networks corresponding to the network identifiers to which the first terminal and the second terminal belong so as to process the signaling and/or the service.
For example, in the above process, the terrestrial 5G cell redirects the first terminal, the first terminal accesses the air 5G cell, the air 5G cell determines that the first terminal belongs to the terrestrial network PLMN ID1, and after scheduling the shared sub-band radio resource, the first terminal to which the terrestrial 5G network PLMN ID1 belongs is routed to the core network corresponding to the PLMN ID1 in a RAN Sharing manner. Therefore, the terminals of the PLMN ID1 dynamically share and use the air interface resources of the air 5G cells, finish the signaling and service processing of the home core network and eliminate the possible network and service isolation of the core network side.
In the above embodiment, the first terminal of the ground network shares the resource of the air network. Accordingly, the second terminal of the over-the-air network may also share the resources of using the terrestrial network.
Optionally, if the shared subband is a part or all of the first initial subband, the using the first initial subband, the second initial subband and the shared subband to carry signaling and/or traffic of the first terminal in the ground cell and the second terminal in the air cell includes:
and using the first initial sub-band to carry signaling and/or services of the first terminal in the ground cell, and using the second initial sub-band and the shared sub-band to carry signaling and/or services of the second terminal in the air cell.
Optionally, the priority of the second initial subband in the frequency point priorities of the second terminal is higher than the priority of the shared subband;
the using the second initial sub-band and the shared sub-band to carry signaling and/or traffic of the second terminal in the air cell includes:
adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell;
and if the load of the air cell reaches a second preset threshold value, adopting the second initial sub-band and the shared sub-band to bear the signaling and/or the service of a second terminal in the air cell.
Optionally, the second initial subband is a part of a second bandwidth of the air cell; the second frequency offset of the SSB of the air cell satisfies the following equation:
second frequency offset = (second bandwidth-second initial subband)/2.
If the second terminal of the air network shares the resource using the ground network, it only needs to define the sub-band BWP2 that can be shared in the carrier of the ground 5G cell with reference to the above embodiment, and correspondingly define the bandwidth, SSB offset, initial sub-band of the air 5G cell, initial sub-band specified by the UE, and Dedicated sub-band, and specify that the shared sub-band BWP2 is a Dedicated BWP of the air terminal; defining the frequency priority of an air network home terminal as the highest frequency of an air 5G cell and the second highest frequency priority of a ground 5G cell; and setting shared algorithm threshold parameters and strategies, so that when the wireless resources of the air 5G cell are congested, starting load balance to trigger the air 5G terminal to redirect to the ground 5G cell, and sharing the wireless sub-band resources defined by the ground 5G cell. The specific implementation principle is the same as that in the above embodiments, and details are not described here.
In the above embodiments, it is illustrated that the first terminal of the ground network shares the resource of the air network, and the second terminal of the air network may share the resource of the ground network. It will be appreciated that both cases may coexist, i.e. the first terminal of the terrestrial network shares the resources of the air network and the second terminal of the air network shares the resources of the terrestrial network, as long as both configurations are done.
In addition, in the present invention, the configuration of the shared subband may be adjusted according to actual conditions, that is, the configuration of the shared subband is updated according to the frequency utilization rate of the shared subband and the number of the first terminal and the second terminal.
After the shared sub-band of the 5G cross-carrier is defined, the attribute and the parameter of the shared sub-band can be flexibly redefined and reconfigured according to the utilization rate of the cell carrier, the number of terminals and the service condition of the terminal service of the ground and air 5G networks, so that the size of the shared bandwidth and the shared strategy can be dynamically adjusted, and the frequency spectrum utilization rate is improved.
Fig. 4 is a schematic structural diagram of a spectrum resource sharing apparatus according to the present invention. As shown in fig. 4, the apparatus 40 includes:
a configuration module 401, configured to determine a first initial subband of a ground cell, a second initial subband of an empty cell, and a shared subband; the first initial sub-band and the second initial sub-band have different frequencies; the shared sub-band is part or all of the first initial sub-band and/or the second initial sub-band;
a processing module 402, configured to use the first initial subband, the second initial subband, and the shared subband to carry signaling and/or traffic of a first terminal in the ground cell and a second terminal in the air cell;
the shared sub-band is used for carrying signaling and/or services of the first terminal and/or the second terminal, sub-bands other than the shared sub-band in the first initial sub-band are used for carrying signaling and/or services of the first terminal, and sub-bands other than the shared sub-band in the second initial sub-band are used for carrying signaling and/or services of the second terminal.
Optionally, if the shared subband is a part or all of the second initial subband, the processing module 402 is configured to:
and adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell, and adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell.
Optionally, the priority of the first sub-band in the frequency point priorities of the first terminal is higher than the priority of the shared sub-band;
the processing module 402 is configured to:
adopting the first initial sub-band to bear the signaling and/or the service of the first terminal in the ground cell;
and if the load of the ground cell reaches a first preset threshold value, adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell.
Optionally, the first initial subband is a part of a first bandwidth of the ground cell; the first frequency offset of the SSB of the terrestrial cell satisfies the following equation:
first frequency offset = (first bandwidth-first initial subband)/2.
Optionally, if the shared subband is a part or all of the first initial subband, the processing module 402 is configured to:
and using the first initial sub-band to carry signaling and/or services of the first terminal in the ground cell, and using the second initial sub-band and the shared sub-band to carry signaling and/or services of the second terminal in the air cell.
Optionally, the priority of the second initial subband in the frequency point priorities of the second terminal is higher than the priority of the shared subband;
the processing module 402 is configured to:
adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell;
and if the load of the air cell reaches a second preset threshold value, adopting the second initial sub-band and the shared sub-band to bear the signaling and/or the service of a second terminal in the air cell.
Optionally, the second initial subband is a part of a second bandwidth of the air cell; the second frequency offset of the SSB of the air cell satisfies the following equation:
second frequency offset = (second bandwidth-second initial subband)/2.
Optionally, the processing module 402 is further configured to:
and according to the network identifiers to which the first terminal and the second terminal belong, respectively routing the signaling and/or the service of the first terminal and the second terminal to the core networks corresponding to the network identifiers to which the first terminal and the second terminal belong so as to process the signaling and/or the service.
Optionally, the configuration module 401 is further configured to:
and updating the configuration of the shared sub-band according to the frequency utilization rate of the shared sub-band and the number of the first terminal and the second terminal.
The spectrum resource sharing apparatus provided in this embodiment may be used to execute the spectrum resource sharing method in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 5 is a schematic structural diagram of a network device provided in the present invention. As shown in fig. 5, the network device 50 includes a memory 501 and a processor 502; the memory 501 is connected to the processor 502.
A memory 501 for storing a computer program.
A processor 502 for, when a computer program is executed, implementing a method of sharing spectrum resources as in any one of the above embodiments.
The present invention provides a storage medium having stored thereon a computer program which, when executed by a processor, implements a method of sharing spectrum resources as in any of the above embodiments.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for sharing spectrum resources, the method comprising:
determining a first initial sub-band of a ground cell, a second initial sub-band of a null cell and a shared sub-band; the first initial sub-band and the second initial sub-band are different in frequency; the shared sub-band is part or all of the first initial sub-band and/or the second initial sub-band;
using the first initial sub-band, the second initial sub-band and the shared sub-band to carry signaling and/or services of a first terminal in the ground cell and a second terminal in the air cell; the shared sub-band is used for carrying signaling and/or traffic of the first terminal and/or the second terminal, sub-bands other than the shared sub-band in the first initial sub-band are used for carrying signaling and/or traffic of the first terminal, and sub-bands other than the shared sub-band in the second initial sub-band are used for carrying signaling and/or traffic of the second terminal;
the method further comprises the following steps:
and updating the configuration of the shared sub-band according to the frequency utilization rate of the shared sub-band and the number of the first terminal and the second terminal.
2. The method according to claim 1, wherein if the shared sub-band is part or all of the second initial sub-band, the using the first initial sub-band, the second initial sub-band and the shared sub-band to carry signaling and/or traffic of the first terminal in the terrestrial cell and the second terminal in the air cell comprises:
and adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell, and adopting the second initial sub-band to bear the signaling and/or the service of the second terminal in the air cell.
3. The method according to claim 2, characterized in that the priority of the first initial subband in the frequency point priorities of the first terminal is higher than the priority of the shared subband;
the using the first initial sub-band and the shared sub-band to carry signaling and/or traffic of the first terminal in the ground cell includes:
adopting the first initial sub-band to bear the signaling and/or the service of the first terminal in the ground cell;
and if the load of the ground cell reaches a first preset threshold value, adopting the first initial sub-band and the shared sub-band to bear the signaling and/or the service of the first terminal in the ground cell.
4. The method of claim 2, wherein the first initial subband is a portion of a first bandwidth of the terrestrial cell; the first frequency offset of the synchronization signal and the physical broadcast channel block SSB of the terrestrial cell satisfies the following equation:
first frequency offset = (first bandwidth-first initial subband)/2.
5. The method of claim 1, wherein if the shared subband is part or all of the first initial subband, the using the first initial subband, the second initial subband, and the shared subband to carry signaling and/or traffic of the first terminal in the terrestrial cell and the second terminal in the air cell comprises:
and adopting the first initial sub-band to bear the signaling and/or the service of the first terminal in the ground cell, and adopting the second initial sub-band and the shared sub-band to bear the signaling and/or the service of the second terminal in the air cell.
6. The method according to claim 5, wherein the priority of the second initial subband in the frequency point priorities of the second terminal is higher than the priority of the shared subband;
the using the second initial sub-band and the shared sub-band to carry signaling and/or traffic of the second terminal in the air cell includes:
adopting the second initial sub-band to bear the signaling and/or the service of a second terminal in the aerial cell;
and if the load of the air cell reaches a second preset threshold value, adopting the second initial sub-band and the shared sub-band to bear the signaling and/or the service of a second terminal in the air cell.
7. The method of claim 5, wherein the second initial subband is a portion of a second bandwidth of the null cell; the second frequency offset of the SSB of the air cell satisfies the following equation:
second frequency offset = (second bandwidth-second initial subband)/2.
8. The method according to any one of claims 1-7, further comprising:
and according to the network identifiers to which the first terminal and the second terminal belong, respectively routing the signaling and/or the service of the first terminal and the second terminal to the core networks corresponding to the network identifiers to which the first terminal and the second terminal belong so as to process the signaling and/or the service.
9. A network device comprising a memory and a processor; the memory is connected with the processor;
the memory for storing a computer program;
the processor, configured to, when the computer program is executed, implement the method for sharing spectrum resources according to any of claims 1-8.
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