CN116723515A - Millimeter wave spectrum resource sharing method, resource pool reflector, equipment and medium - Google Patents
Millimeter wave spectrum resource sharing method, resource pool reflector, equipment and medium Download PDFInfo
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- 238000013468 resource allocation Methods 0.000 claims abstract description 57
- 238000004891 communication Methods 0.000 claims abstract description 36
- 238000004590 computer program Methods 0.000 claims description 13
- 238000012163 sequencing technique Methods 0.000 claims description 8
- 238000010295 mobile communication Methods 0.000 abstract description 5
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a millimeter wave spectrum resource sharing method, a resource pool reflector, equipment and a medium, and relates to the technical field of communication, wherein the method comprises the following steps: obtaining shared spectrum resources which can be given out by each millimeter wave base station; when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and an associated target base station thereof; if the target base station has available spectrum resources, generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information, so that spectrum resource sharing is realized. By sharing the idle resources of the millimeter wave base station to the base station needing additional wireless resources, the interference of different devices in the millimeter wave mobile communication network in the heterogeneous access to the broadband spectrum can be solved, and the problems that the millimeter wave broadband network cannot be used by a terminal in a weak signal area, communication interruption is caused by the hardware performance difference of millimeter wave transceivers of different terminals and the like are reduced.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a millimeter wave spectrum resource sharing method, a resource pool reflector, a device, and a medium.
Background
For millimeter wave mobile communication indoor and outdoor scenes, in dense urban areas and hot spot areas, such as office buildings, large commercial superproviders, stadiums for temporary activities and the like, based on the existing network conditions, multiple network operators can provide multiple network coverage for the same area, and different operators provide network coverage for respective users at frequency bands lower than 6GHz by using respective authorized frequencies. In the millimeter wave frequency band, although bandwidth resources are rich, because millimeter wave propagation loss is large and uplink and downlink communication distances of a single station are limited due to attenuation, a coverage blind area and a weak signal area still exist in a scene of dense deployment of millimeter wave base stations.
Disclosure of Invention
The invention provides a millimeter wave spectrum resource sharing method, a resource pool reflector, equipment and a medium, which are used for solving the defect that coverage blind areas and weak signal areas still exist in the dense deployment scene of millimeter wave base stations in the prior art.
The invention provides a millimeter wave spectrum resource sharing method, which comprises the following steps:
Obtaining shared spectrum resources which can be given out by each millimeter wave base station;
when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station;
according to the shared spectrum resource, if the available spectrum resource exists in the target base station, generating resource allocation information based on the available spectrum resource, and sending the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
According to the millimeter wave spectrum resource sharing method provided by the invention, the resource request is initiated by the macro base station when the macro base station detects that the user equipment has burst service flow and the millimeter wave base station associated with the position grid where the user equipment is located has idle resources.
According to the millimeter wave spectrum resource sharing method provided by the invention, the shared spectrum resource is obtained by evaluating the available spectrum resource according to the resource occupation condition of the millimeter wave base station;
The shared spectrum resources include time resources with granularity of time slots, frequency resources with granularity of Resource Blocks (RBs), space resources with granularity of grids, and power resources.
According to the millimeter wave spectrum resource sharing method provided by the invention, the target base station comprises one or more of the position grids of the user equipment in the resource request, and the target base station associated with the position grids in each millimeter wave base station comprises:
acquiring a position grid of user equipment in the resource request, and determining a millimeter wave base station associated with the position grid in each millimeter wave base station;
sequencing each millimeter wave base station associated with the position grid according to the sequence from small to large distance from the user equipment, and determining the adjacent base station closest to the user equipment according to the sequencing sequence;
if the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold value, selecting a target base station from millimeter wave base stations associated with the position grid; the target base station is a pre-preset number of millimeter wave base stations closest to the user equipment in the millimeter wave base stations associated with the position grid, or the target base station is a millimeter wave base station with a distance smaller than a preset second distance threshold value from the user equipment in the millimeter wave base stations associated with the position grid, and the second distance threshold value is larger than the first distance threshold value.
According to the millimeter wave spectrum resource sharing method provided by the invention, the macro base station comprises one or more than one macro base stations; when the macro base station includes a plurality of macro base stations, the generating resource allocation information based on the available spectrum resources and transmitting the resource allocation information to the macro base stations includes:
acquiring a scheduling strategy corresponding to the macro base station; the scheduling policy comprises a scheduling priority;
generating resource allocation information according to the scheduling strategy and the available spectrum resources, and sending the resource allocation information to the macro base station.
According to the millimeter wave spectrum resource sharing method provided by the invention, before the millimeter wave base station obtains the shared spectrum resource which can be obtained, the method further comprises the following steps:
acquiring registration information of the millimeter wave base station; the registration information comprises basic information of the millimeter wave base station, wherein the basic information comprises position information, base station beam pointing region information and base station power information; the basic information is obtained by measuring and reporting user equipment in the common coverage area of the millimeter wave base station and the macro base station;
and registering the millimeter wave base station according to the registration information.
According to the millimeter wave spectrum resource sharing method provided by the invention, after the shared spectrum resource which can be let out by each millimeter wave base station is obtained, the method further comprises the following steps:
And summarizing and updating the shared spectrum resources by adopting a three-dimensional space grid so as to enable the shared spectrum resources of the same millimeter wave base station to be positioned in the same space grid.
The invention also provides a resource pool reflector comprising:
the first acquisition module is used for acquiring shared spectrum resources which can be given out by each millimeter wave base station;
the second acquisition module is used for acquiring a position grid of the user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station when the resource request of the macro base station is received;
the resource sharing module is used for generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station if the available spectrum resources exist in the target base station according to the shared spectrum resources; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the millimeter wave spectrum resource sharing method according to any one of the above when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a millimeter wave spectrum resource sharing method as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a millimeter wave spectrum resource sharing method as described in any one of the above.
The invention provides a millimeter wave spectrum resource sharing method, a resource pool reflector, equipment and a medium, wherein the shared spectrum resource which can be given out by each millimeter wave base station is obtained, and when a resource request of a macro base station is received, the position grid of user equipment in the resource request and a target base station related to the position grid are obtained; according to the obtained shared spectrum resources, if the available spectrum resources exist in the target base station, generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station; the macro base station instructs the user equipment to establish communication connection with the target base station based on the resource allocation information, so that the user equipment shares available spectrum resources. By utilizing the idle resources of a plurality of millimeter wave base stations to carry out resource sharing on the base stations needing additional wireless resources, the problems that different devices in the millimeter wave mobile communication network interfere when accessing the broadband spectrum in a heterogeneous manner, the millimeter wave broadband network cannot be used by a terminal in a weak signal area, communication interruption is caused by the hardware performance difference of millimeter wave transceivers of different terminals and the like can be solved.
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In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a millimeter wave spectrum resource sharing method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a process for obtaining shared spectrum resources that can be allocated by a millimeter wave base station according to an embodiment of the present invention;
fig. 3 is a schematic coverage diagram of a macro base station and a millimeter wave base station according to an embodiment of the present invention;
fig. 4 is a second flowchart of a millimeter wave spectrum resource sharing method provided by the present invention;
fig. 5 is a schematic deployment diagram of a millimeter wave base station according to an embodiment of the present invention;
fig. 6 is a schematic time relationship diagram of a spectrum resource sharing method of a millimeter wave base station according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the construction of a resource pool reflector provided by the present invention;
fig. 8 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a millimeter wave spectrum resource sharing method, which is applied to a millimeter wave resource pool reflector, and adopts a resource pool reflector mechanism based on space-time frequency and power domain to realize the sharing of wireless spectrum resources of different millimeter wave base stations, wherein the resource pool reflector mechanism is based on a multi-dimensional shared resource pool, each base station searches available resources from the resource pool and performs pre-occupied resource request, the resource pool is based on the reflector mechanism, at each resource scheduling time point, the determined resource allocation information is fed back to the relevant base station, and the base station performs the scheduling of the relevant resources according to the resource allocation information provided by the reflector. Wherein the resource pool may be deployed at a network edge server (MEC) or at a location that is quickly accessible by macro base stations and distributed kiosks. The resource sharing mechanism can solve the problems that in the future millimeter wave mobile communication network, various different devices interfere when accessing the broadband spectrum in a heterogeneous manner, the millimeter wave broadband network cannot be used by the terminal in a weak signal area, communication interruption is caused by the hardware performance difference of millimeter wave transceivers of different terminals, and the like.
Specifically, referring to fig. 1, fig. 1 is a flow chart of a millimeter wave spectrum resource sharing method provided by the embodiment of the present invention, and based on fig. 1, the millimeter wave spectrum resource sharing method provided by the embodiment of the present invention includes:
step 100, obtaining shared spectrum resources which can be let out by each millimeter wave base station;
the shared spectrum resources which can be given out by each millimeter wave base station are acquired, and the shared spectrum resources can be actively reported by the millimeter wave base station at regular or idle time, or can be reported by the millimeter wave base station in response to the request of the resource pool reflector, and the method is not particularly limited. The millimeter wave resource pool reflector receives attribute information of the millimeter wave base station, wherein the attribute information comprises spectrum resources which can be given out by the millimeter wave base station, and the spectrum resources are radio frequency resources. And continuously updating resource yielding information provided by each millimeter wave base station based on a certain granularity of time-space frequency and power domain according to the attribute information.
Step 200, when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station;
when a resource request of a macro base station is received, a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station are acquired. When the macro base station needs to schedule uplink and downlink service of the millimeter wave frequency band for one User Equipment (UE), besides using a switching or double-link mode to call millimeter wave micro base station wireless resources, the macro base station can also inquire wireless resource mask information of a grid at the current position of the User Equipment (UE) by accessing to a millimeter wave resource pool reflector, if idle resources exist, the macro base station requests the wireless resources which are hoped to be obtained from the millimeter wave resource pool reflector, and the resource dimension comprises time-frequency space and power.
Step 300, according to the shared spectrum resource, if it is determined that the target base station has available spectrum resources, generating resource allocation information based on the available spectrum resources, and transmitting the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
And the millimeter wave resource pool reflector determines the allocation mode of time-frequency space and power resources in the grid of the position of the User Equipment (UE) according to the received resource request of the macro base station and informs the request base station. Specifically, according to the obtained shared spectrum resource, if it is determined that the available spectrum resource exists in the target base station, generating resource allocation information based on the target spectrum resource, and transmitting the resource allocation information to the macro base station. The macro base station indicates the User Equipment (UE) to access the target base station according to the resource allocation information of the millimeter wave resource pool reflector, and establishes communication connection with the target base station, so that the User Equipment (UE) can use the available spectrum resources of the target base station to realize spectrum resource sharing.
Further, the millimeter wave resource pool reflector can receive resource requests of one or more macro base stations at the same time or within a certain time period; one or more millimeter wave base stations associated with the location grid where the user equipment UE is located may be provided, and the target base station is part or all of all the millimeter wave base stations associated with the location grid where the user equipment UE is located; the same macro base station may send a resource request to the millimeter wave resource pool reflector for one or more user equipment UEs within its coverage area.
In this embodiment, by acquiring shared spectrum resources that can be given off by each millimeter wave base station, when a resource request of a macro base station is received, a location grid of a user equipment in the resource request and an associated target base station thereof are acquired; according to the obtained shared spectrum resources, if the available spectrum resources exist in the target base station, generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station; the macro base station instructs the user equipment to establish communication connection with the target base station based on the resource allocation information, so that the user equipment shares available spectrum resources. By utilizing the idle resources of a plurality of millimeter wave base stations to carry out resource sharing on the base stations needing additional wireless resources, the problems that different devices in the millimeter wave mobile communication network interfere when accessing the broadband spectrum in a heterogeneous manner, the millimeter wave broadband network cannot be used by a terminal in a weak signal area, communication interruption is caused by the hardware performance difference of millimeter wave transceivers of different terminals and the like can be solved.
Preferably, the resource request is initiated by the macro base station when it is detected that the user equipment UE has bursty traffic and the mmwave base station associated with the location grid where the user equipment UE is located has idle resources. That is, when the UE needs high throughput service, the macro base station interacts with the millimeter wave resource pool reflector to obtain which millimeter wave base stations in the grid where the UE is located have idle resources capable of providing communication service, and each available radio resource information reported by the millimeter wave base stations associated with the grid where the UE is located.
Further, the shared spectrum resource is obtained by evaluating the available spectrum resource by the millimeter wave base station according to the self resource occupation condition; the shared spectrum resources include time resources with granularity of time slots, frequency resources with granularity of resource blocks RB, space resources with granularity of grids, and power resources. Wherein the granularity of the time resource yielding is actually determined by the time control granularity of the millimeter wave resource pool reflector. The frequency resources are identified based on different three-dimensional grid space locations at a time resource granularity. Spatial grid granularity is constrained by millimeter wave base station beam pointing resolution.
Preferably, before obtaining the shared spectrum resources that can be given out by each millimeter wave base station, each millimeter wave base station needs to register with the millimeter wave resource pool reflector, and the millimeter wave resource pool reflector obtains the shared spectrum resources that can be given out by each registered millimeter wave resource pool reflector. Thus, prior to step 100, further comprising:
step 001, acquiring registration information of the millimeter wave base station; the registration information comprises basic information of the millimeter wave base station, wherein the basic information comprises position information, base station beam pointing region information and base station power information; the basic information is obtained by measuring and reporting user equipment in the common coverage area of the millimeter wave base station and the macro base station;
And step 002, registering the millimeter wave base station according to the registration information.
First, registration information of each millimeter wave base station is acquired, the acquired registration information including basic information of each millimeter wave base station, the registration information including position information of the millimeter wave base station, base station beam pointing region information, and base station power information. The basic information is obtained by measuring and reporting user equipment in the common coverage area of the millimeter wave base station and the macro base station. And registering the millimeter wave base stations according to the registration information of each millimeter wave base station. The registered millimeter wave base station can let spectrum resources be shared through the millimeter wave resource pool reflector.
Further, for the available shared spectrum resources of the registered millimeter wave base station, the grouping and summarizing are performed by adopting a three-dimensional space grid, and after step 100, the method may further include:
and 110, summarizing and updating the shared spectrum resources by adopting a three-dimensional space grid so as to enable the shared spectrum resources of the same millimeter wave base station to be positioned in the same space grid.
After the shared spectrum resources which can be given off by each registered millimeter wave base station are acquired, the acquired shared spectrum resources are summarized and updated by adopting a three-dimensional space grid, and the shared spectrum resources of the same millimeter wave base station are positioned in the same space grid.
Referring to fig. 2, fig. 2 is a schematic diagram of a process for obtaining shared spectrum resources available to a millimeter wave base station according to an embodiment of the present invention, where in fig. 2, each millimeter wave base station, such as a base station a, a base station B, a base station C, and a base station D, is a millimeter wave base station that has been registered in a reflector of a millimeter wave resource pool, and includes a fixed base station and a movable base station. For a fixed base station, base station position information, base station beam pointing region information, average history measurement report information, base station power information, and the like are provided at the time of initial registration. When the related information exceeds the set threshold change, reporting again; for the movable base station, reporting the same information as the fixed base station by adopting a periodic or non-periodic (threshold triggering) mode for registration.
For registered millimeter wave base stations, adopting modes such as regular reporting or threshold triggering and the like to send shared spectrum resources which can be registered and let out to a millimeter wave resource pool reflector, adopting a three-dimensional space grid mode to gather and update the acquired shared spectrum resources by the millimeter wave resource pool reflector, and positioning the shared spectrum resources of the same millimeter wave base station in the same space grid in the millimeter wave resource pool reflector.
Preferably, there may be one or more macro base stations that send the resource request to the millimeter wave resource pool reflector, and when there are a plurality of macro base stations, in step 300, the macro base stations generate resource allocation information based on the acquired available spectrum resources, and send the resource allocation information to the macro base stations, which specifically includes:
Step 301, obtaining a scheduling policy corresponding to the macro base station; the scheduling policy comprises a scheduling priority;
and step 302, generating resource allocation information according to the scheduling strategy and the available spectrum resources, and transmitting the resource allocation information to the macro base station.
When resource requests of a plurality of macro base stations are acquired, a scheduling strategy corresponding to the macro base stations is acquired, the scheduling strategy comprises scheduling priority of the macro base stations, resource allocation information is generated according to the acquired shared spectrum resources and the scheduling strategy, and the generated resource allocation information is sent to the macro base stations.
Further, there may be one or more target base stations associated with the location grid of the UE requesting the resource, and in step 200, the obtaining the location grid of the UE in the resource request, and the target base station associated with the location grid of the UE in each mmwave base station includes:
step 201, acquiring a location grid of a user equipment in the resource request, and determining a millimeter wave base station associated with the location grid in each millimeter wave base station;
step 202, sorting all millimeter wave base stations associated with the position grid according to the sequence from small distance to large distance of the user equipment, and determining adjacent base stations closest to the user equipment according to the sorting sequence;
Step 203, if the distance between the neighboring base station and the ue exceeds a preset first distance threshold, selecting a target base station from the millimeter wave base stations associated with the location grid; the target base station is a pre-preset number of millimeter wave base stations closest to the user equipment in the millimeter wave base stations associated with the position grid, or the target base station is a millimeter wave base station with a distance smaller than a preset second distance threshold value from the user equipment in the millimeter wave base stations associated with the position grid, and the second distance threshold value is larger than the first distance threshold value.
The method comprises the steps of acquiring a position grid of User Equipment (UE) in a resource request, firstly, determining a millimeter wave base station associated with the position grid in each millimeter wave base station, then sequencing each millimeter wave base station associated with the position grid of the User Equipment (UE) according to the sequence from small distance to large distance of the millimeter wave base station and determining the millimeter wave base station closest to the User Equipment (UE) according to the sequencing sequence. If the distance between the millimeter wave base station closest to the user equipment UE and the user equipment UE exceeds a preset first distance threshold value, selecting a target base station from all millimeter wave base stations associated with the position grid where the user equipment UE is located. The selected target base station is a preset number of millimeter wave base stations closest to the user equipment UE in each millimeter wave base station associated with the position grid where the user equipment UE is located, or is a millimeter wave base station with a distance smaller than a preset second distance threshold value from the user equipment UE in each millimeter wave base station associated with the position grid where the user equipment UE is located, and the second distance threshold value is larger than the first distance threshold value.
In one embodiment, the millimeter wave resource pool reflector uses a three-dimensional space grid as a main index, and the information reported by each millimeter wave base station is summarized and updated, and the specific processing flow of the spectrum resource sharing method is described below based on single grid granularity. Each millimeter wave base station evaluates available wireless resources according to the current wireless resource occupation condition, and specifically comprises time resources with time slots as granularity, frequency resources with Resource Blocks (RBs) as units, space resources with grids as granularity and resources with power as granularity. The granularity of the time resource yielding is actually determined by the time control granularity of the millimeter wave resource pool reflector, the frequency resource is identified on the time resource granularity based on different three-dimensional grid space positions, and the space grid granularity is constrained by the beam pointing resolution of the millimeter wave base station. The base station using the passive phase shifter can use only a few active transceiver units, so that the cost is greatly reduced, and meanwhile, the beamforming is supported, and the millimeter wave base station with the passive phase shifter array and the active transceiver units is used as an example, and the coverage schematic diagram of the millimeter wave base station and the macro base station to a specific area is shown in fig. 3.
Based on fig. 3, for the UE entering the common coverage area of the macro base station and the millimeter wave micro base station, the UE may report the position of its own position grid relative to the macro base station, the positions of the plurality of millimeter wave base stations, the signal strength of a certain beam of a certain millimeter wave base station, and other information to the macro base station through measurement and reporting. And the reported information is acquired by a millimeter wave resource pool reflector after being processed and is used as basic information of spectrum resource sharing. After a certain amount of information is accumulated, the millimeter wave resource pool reflector can report the position information of the relative macro base station according to the user equipment UE, and when the millimeter wave micro base station does not transmit signals, the signal strength expectation of the user equipment UE and the adjacent millimeter wave base stations in a grid with a certain size in the geographic area is determined.
Referring to another flow chart of the spectrum resource sharing method shown in fig. 4, when the macro base station needs to schedule uplink and downlink services of the millimeter wave frequency band for one or more user equipment UE in its coverage area, the macro base station scheduler queries, by accessing to the millimeter wave resource pool reflector, wireless resource mask information of a grid where the user equipment UE is currently located, thereby querying whether available shared resources exist in the millimeter wave base station associated with the grid where the user equipment UE is located. And if the available resources are determined to exist, initiating a resource application to the millimeter wave resource pool reflector based on the wireless resources which are expected to be obtained, wherein the applied resource dimension comprises time-frequency space and power. And the millimeter wave resource pool reflector determines the allocation mode of time-frequency space and power resources in each grid after the request window is ended based on strategies such as priority and the like according to the received requests of a plurality of macro base stations, and notifies the requested macro base stations in a scheduling window. And the macro base station receiving the configuration confirmation message accesses the corresponding millimeter wave base station to communicate according to the correct steps by the corresponding user equipment UE according to the configuration schedule, so as to realize the spectrum resource sharing of the millimeter wave base station.
The advantage of using a millimeter wave resource pool reflector is that the communication network can only use Sub-6GHz macro base stations to provide services during idle periods while turning off millimeter wave base stations within the coverage area. When the User Equipment (UE) needs high throughput service, the macro base station interacts with the millimeter wave resource pool reflector to obtain which millimeter wave micro base stations in the grid where the current User Equipment (UE) is located can provide communication service and available radio resource information reported by each millimeter wave base station associated with the grid where the user equipment is located.
The millimeter wave base station registered to the millimeter wave resource pool reflector is mainly a millimeter wave type2-O base station, and taking a 26GHz millimeter wave micro base station as an example, the millimeter wave base station is easy to be blocked by obstacles due to the millimeter wave propagation characteristic, and the service continuity can be influenced in the complex environment. But due to networking costs and control maintenance overhead, coverage cannot be improved by greatly increasing the density of micro-station deployment. In this embodiment, a typical deployment scenario of the millimeter wave base station is shown in fig. 5, and in fig. 5, the UE1 that is closer to the millimeter wave base station a may directly obtain the service of the millimeter wave base station a. When the distance between the millimeter wave resource pool reflector and the millimeter wave base station is far, for example, the user equipment UE2 and the user equipment UE3, the millimeter wave resource pool reflector can establish communication with the user equipment UE2 and the user equipment UE3 by utilizing shared spectrum resources which are given out by a plurality of adjacent idle millimeter wave base stations according to the given-out resources reported by the millimeter wave base station by using macro diversity and a multipoint assistance technology.
The duration of each scheduled millimeter wave resource by the millimeter wave resource pool reflector is determined based on some configuration granularity, e.g., 50 milliseconds or 100 millimeters, etc. The millimeter wave base station involved will complete all the work of cell initialization within the configured handover delay window.
When the user equipment UE is provided with the access service of the "main millimeter wave single cell a", the processing flow is consistent with the handover or dual connectivity workflow. However, when the macro diversity multipoint assistance mechanism is adopted, besides the cell a, the cells of the plurality of idle millimeter wave base stations selected by the millimeter wave resource pool reflector also use the same time-frequency resource and the beams pointing to the grid where the user equipment UE is located, and send downlink information to the user equipment UE based on the macro diversity mechanism. In uplink, the multiple selected millimeter wave base stations providing shared spectrum resources also receive uplink information sent by the UE according to configuration, after demodulation, the received soft value is transferred to a "primary millimeter wave single cell a", and after soft combining, uplink decoding is performed.
In a multi-operator network, when different operators use respective authorized frequency bands, when the millimeter wave base station is in an idle state, the millimeter wave base station can register with a millimeter wave resource pool reflector and provide resource yielding information based on 'space-time and power domain' granularity. Because different operators use different authorized millimeter wave frequency bands, when macro diversity scheduling is performed, the millimeter wave resource pool reflector can only use millimeter wave frequency resources of the same operator and related base stations to perform macro diversity. When the millimeter wave base station adopts a shared frequency resource deployment mode, namely, the millimeter wave base stations deployed by different operators can provide services for the user equipment, so that resource sharing is realized.
Further, based on the working principle of the millimeter wave resource pool reflector, in order to improve the processing efficiency, the registration of the base station is performed based on the granularity of the positioning grid of the coverage area when the shared resource is indicated. And can support a single intra-operator macro base station to assume control plane and use one or more millimeter wave base stations to perform macro diversity service on specific user equipment UE. Macro diversity across operators may also be supported. When the cross-operation Shang Hong diversity is performed, if an authorization mode is adopted in the millimeter wave frequency band between operators, macro diversity can only be performed by utilizing the millimeter wave base stations of the same operators; if a sharing mode is adopted in the millimeter wave frequency band, macro diversity can be provided for User Equipment (UE) belonging to different operators. The working principle of the millimeter wave resource pool reflector further comprises that the millimeter wave base station identifies the yielding shared resource on the reflector based on the resource yielding time granularity. The time relationship of the spectrum resource sharing method of the millimeter wave base station is shown in fig. 6, wherein the identified shared resource is required to be completed before the application for the resource begins. In fig. 6, a millimeter wave base station provides available shared resources and is identified by mask information, a base station which needs to use millimeter wave frequency band resources accesses a resource pool reflector to search and request the shared resources, and the millimeter wave resource pool reflector coordinates resource request conflict of a macro base station; and responding to the resource request of the macro base station, and determining the shared resource available to the macro base station issuing the application. The millimeter wave base station communicates with the user equipment UE using the obtained shared resources after scheduling preparation of the shared resources. Note that the interval duration of the time domain shown in fig. 6 is for exemplary illustration only.
The millimeter wave spectrum resource sharing method provided by the embodiment of the invention aims to provide wireless resource service for User Equipment (UE) in each geographic grid in a way which is as fast and as accurate as possible by utilizing the millimeter wave resource pool reflector. When the UE is located far away from the millimeter wave base station, if the link budget is allowed, a plurality of base stations can be easily scheduled, and communication is realized in a macro diversity mode. For the UE requiring higher communication reliability, the reliability can be further improved by macro diversity.
For coordinated shared resources, power resources are also an important factor in addition to time, frequency and spatial beam resources. For downstream signals, for a commonly used passive phase shifter millimeter wave base station, if there is only one source transceiver, it is usually only possible to transmit in one slot pointing to 1 beam direction, and full power can be used. For uplink signals, because the terminal transmission power is limited, configuring a plurality of millimeter wave base stations for macro diversity reception will raise the total link gain.
In this embodiment, the macro base station and the millimeter wave base station are utilized to establish the millimeter wave resource pool reflector based on the space three-dimensional grid by utilizing the beamforming and positioning capabilities of the macro base station and the millimeter wave base station. Each millimeter wave base station can identify sharable resources on the millimeter wave resource pool reflector according to the use condition of wireless resources in the three-dimensional grid. For a base station needing extra wireless resources, for example, the base station finds that the channel quality of the user equipment UE does not meet the service requirement, or the stable communication cannot be maintained due to environmental disturbance, but other millimeter wave base stations currently exist in a space grid where the user equipment UE is located, so that resource application can be performed, and the communication with the user equipment UE is maintained by utilizing a cooperative mode of a plurality of external millimeter wave base stations.
Further, the millimeter wave resource pool reflector is utilized to provide wireless resource service for the user equipment UE in each geographic grid in a manner as fast and accurate as possible, when the user equipment UE is located at a position far away from the millimeter wave base station, if the link budget is allowed, a plurality of base stations can be scheduled, communication is realized in a macro diversity mode, and for the user equipment UE with high requirements on communication reliability, the reliability can be further improved in a macro diversity mode. Specifically, the downlink direction is mainly configured with macro diversity, so that a plurality of base stations use beams pointing to the same grid to send the same signal on the same time-frequency resource, so that the user equipment UE can receive stronger wireless signals, and for the uplink direction, a plurality of millimeter wave base stations are configured to receive uplink signals of the user equipment UE, and uplink signal quality is improved through a multipoint cooperation receiving mode.
The resource pool reflector provided by the invention is described below, and the resource pool reflector described below and the millimeter wave spectrum resource sharing method described above can be referred to correspondingly.
Referring to fig. 7, a resource pool reflector provided by an embodiment of the present invention includes:
a first obtaining module 10, configured to obtain shared spectrum resources that can be given off by each millimeter wave base station;
A second obtaining module 20, configured to obtain, when a resource request of a macro base station is received, a location grid of a user equipment in the resource request, and a target base station associated with the location grid in each millimeter wave base station;
a resource sharing module 30, configured to generate resource allocation information based on the available spectrum resources and send the resource allocation information to the macro base station if it is determined that the target base station has the available spectrum resources according to the shared spectrum resources; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
In one embodiment, the resource request is initiated by the macro base station upon detecting that the user equipment has bursty traffic and that a millimeter wave base station associated with a location grid in which the user equipment is located has idle resources.
In one embodiment, the shared spectrum resource is obtained by evaluating the available spectrum resource by the millimeter wave base station according to the resource occupation condition of the millimeter wave base station;
the shared spectrum resources include time resources with granularity of time slots, frequency resources with granularity of Resource Blocks (RBs), space resources with granularity of grids, and power resources.
In one embodiment, the target base station includes one or more of the second acquisition modules 20, and is further configured to:
acquiring a position grid of user equipment in the resource request, and determining a millimeter wave base station associated with the position grid in each millimeter wave base station;
sequencing each millimeter wave base station associated with the position grid according to the sequence from small to large distance from the user equipment, and determining the adjacent base station closest to the user equipment according to the sequencing sequence;
if the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold value, selecting a target base station from millimeter wave base stations associated with the position grid; the target base station is a pre-preset number of millimeter wave base stations closest to the user equipment in the millimeter wave base stations associated with the position grid, or the target base station is a millimeter wave base station with a distance smaller than a preset second distance threshold value from the user equipment in the millimeter wave base stations associated with the position grid, and the second distance threshold value is larger than the first distance threshold value.
In one embodiment, the macro base station includes one or more; when the macro base station includes a plurality of macro base stations, the resource sharing module 30 is further configured to:
Acquiring a scheduling strategy corresponding to the macro base station; the scheduling policy comprises a scheduling priority;
generating resource allocation information according to the scheduling strategy and the available spectrum resources, and sending the resource allocation information to the macro base station.
In one embodiment, the resource pool reflector further comprises a registration module for:
acquiring registration information of the millimeter wave base station; the registration information comprises basic information of the millimeter wave base station, wherein the basic information comprises position information, base station beam pointing region information and base station power information; the basic information is obtained by measuring and reporting user equipment in the common coverage area of the millimeter wave base station and the macro base station;
and registering the millimeter wave base station according to the registration information.
In one embodiment, the first obtaining module 10 is further configured to:
and summarizing and updating the shared spectrum resources by adopting a three-dimensional space grid so as to enable the shared spectrum resources of the same millimeter wave base station to be positioned in the same space grid.
Fig. 8 illustrates a physical structure diagram of an electronic device, as shown in fig. 8, which may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. Processor 810 may invoke logic instructions in memory 830 to perform a millimeter wave spectrum resource sharing method comprising:
Obtaining shared spectrum resources which can be given out by each millimeter wave base station;
when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station;
according to the shared spectrum resource, if the available spectrum resource exists in the target base station, generating resource allocation information based on the available spectrum resource, and sending the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, where the computer program, when executed by a processor, can perform a millimeter wave spectrum resource sharing method provided by the above methods, where the method includes:
obtaining shared spectrum resources which can be given out by each millimeter wave base station;
when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station;
according to the shared spectrum resource, if the available spectrum resource exists in the target base station, generating resource allocation information based on the available spectrum resource, and sending the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the millimeter wave spectrum resource sharing method provided by the above methods, the method comprising:
Obtaining shared spectrum resources which can be given out by each millimeter wave base station;
when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station;
according to the shared spectrum resource, if the available spectrum resource exists in the target base station, generating resource allocation information based on the available spectrum resource, and sending the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The millimeter wave spectrum resource sharing method is characterized by comprising the following steps of:
obtaining shared spectrum resources which can be given out by each millimeter wave base station;
when a resource request of a macro base station is received, acquiring a position grid of user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station;
according to the shared spectrum resource, if the available spectrum resource exists in the target base station, generating resource allocation information based on the available spectrum resource, and sending the resource allocation information to the macro base station; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
2. The millimeter wave spectrum resource sharing method of claim 1, wherein the resource request is initiated by the macro base station upon detecting that the user equipment has bursty traffic and that a millimeter wave base station associated with a location grid in which the user equipment is located has idle resources.
3. The millimeter wave spectrum resource sharing method according to claim 1, wherein the shared spectrum resource is obtained by evaluating a concessible spectrum resource by the millimeter wave base station according to the resource occupation condition of the millimeter wave base station;
The shared spectrum resources include time resources with granularity of time slots, frequency resources with granularity of Resource Blocks (RBs), space resources with granularity of grids, and power resources.
4. The millimeter wave spectrum resource sharing method according to claim 1, wherein the target base station includes one or more of the location grid of the user equipment in the resource request, and the target base station associated with the location grid in each of the millimeter wave base stations, includes:
acquiring a position grid of user equipment in the resource request, and determining a millimeter wave base station associated with the position grid in each millimeter wave base station;
sequencing each millimeter wave base station associated with the position grid according to the sequence from small to large distance from the user equipment, and determining the adjacent base station closest to the user equipment according to the sequencing sequence;
if the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold value, selecting a target base station from millimeter wave base stations associated with the position grid; the target base station is a pre-preset number of millimeter wave base stations closest to the user equipment in the millimeter wave base stations associated with the position grid, or the target base station is a millimeter wave base station with a distance smaller than a preset second distance threshold value from the user equipment in the millimeter wave base stations associated with the position grid, and the second distance threshold value is larger than the first distance threshold value.
5. The millimeter wave spectrum resource sharing method of claim 1, wherein the macro base station comprises one or more of; when the macro base station includes a plurality of macro base stations, the generating resource allocation information based on the available spectrum resources and transmitting the resource allocation information to the macro base stations includes:
acquiring a scheduling strategy corresponding to the macro base station; the scheduling policy comprises a scheduling priority;
generating resource allocation information according to the scheduling strategy and the available spectrum resources, and sending the resource allocation information to the macro base station.
6. The millimeter wave spectrum resource sharing method according to claim 1, wherein before the obtaining the shared spectrum resource that the millimeter wave base station can give out, further comprising:
acquiring registration information of the millimeter wave base station; the registration information comprises basic information of the millimeter wave base station, wherein the basic information comprises position information, base station beam pointing region information and base station power information; the basic information is obtained by measuring and reporting user equipment in the common coverage area of the millimeter wave base station and the macro base station;
and registering the millimeter wave base station according to the registration information.
7. The millimeter wave spectrum resource sharing method according to claim 1, wherein after the obtaining the shared spectrum resource that can be given out by each millimeter wave base station, further comprises:
and summarizing and updating the shared spectrum resources by adopting a three-dimensional space grid so as to enable the shared spectrum resources of the same millimeter wave base station to be positioned in the same space grid.
8. A resource pool reflector, comprising:
the first acquisition module is used for acquiring shared spectrum resources which can be given out by each millimeter wave base station;
the second acquisition module is used for acquiring a position grid of the user equipment in the resource request and a target base station associated with the position grid in each millimeter wave base station when the resource request of the macro base station is received;
the resource sharing module is used for generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station if the available spectrum resources exist in the target base station according to the shared spectrum resources; the macro base station indicates the user equipment to establish communication connection with the target base station based on the resource allocation information so as to enable the user equipment to share the available spectrum resources.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the millimeter wave spectrum resource sharing method of any one of claims 1 to 7 when the program is executed by the processor.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the millimeter wave spectrum resource sharing method of any one of claims 1 to 7.
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