Millimeter-wave spectrum resource sharing methods, resource pool reflectors, equipment and media

Abstract

This invention provides a millimeter-wave spectrum resource sharing method, resource pool reflector, device, and medium, relating to the field of communication technology. The method includes: acquiring the shareable spectrum resources available from each millimeter-wave base station; upon receiving a resource request from a macro base station, acquiring the location grid of the user equipment (UE) and its associated target base station from the resource request; if the target base station has available spectrum resources, generating resource allocation information based on the available spectrum resources and sending it to the macro base station; and the macro base station instructing the UE to establish a communication connection with the target base station based on the resource allocation information, thereby achieving spectrum resource sharing. By sharing the idle resources of millimeter-wave base stations with base stations requiring additional wireless resources, interference between different devices accessing broadband spectrum heterogeneously in millimeter-wave mobile communication networks can be resolved, reducing problems such as terminals being unable to use millimeter-wave broadband networks in weak signal areas and communication interruptions caused by differences in the hardware performance of millimeter-wave transceivers from different terminals.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to a millimeter-wave spectrum resource sharing method, resource pool reflector, device, and medium. Background Technology

[0002] For indoor and outdoor millimeter-wave mobile communication scenarios, in densely populated urban areas and hotspots such as office buildings, large shopping malls, and stadiums hosting temporary events, multiple network operators provide multiple network coverages for the same area based on existing network conditions. Different operators use their respective licensed frequencies in the sub-6GHz band to provide network coverage for their respective users. While the millimeter-wave band offers abundant bandwidth resources, the high propagation loss of millimeter waves limits the uplink and downlink communication distance of a single base station due to attenuation. Therefore, even in scenarios with dense deployment of millimeter-wave base stations, coverage blind spots and weak signal areas still exist. Summary of the Invention

[0003] This invention provides a millimeter-wave spectrum resource sharing method, resource pool reflector, device, and medium to address the shortcomings of existing technologies in densely deployed millimeter-wave base stations, where coverage blind spots and weak signal areas still exist.

[0004] This invention provides a millimeter-wave spectrum resource sharing method, comprising:

[0005] Obtain the shared spectrum resources available for sale from each millimeter-wave base station;

[0006] When a resource request from a macro base station is received, the location grid of the user equipment in the resource request and the target base station associated with the location grid in each millimeter-wave base station are obtained.

[0007] Based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources, and the resource allocation information is sent to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0008] According to the millimeter-wave spectrum resource sharing method provided by the present invention, the resource request is initiated by the macro base station when it detects that the user equipment has burst traffic and that there are idle resources of the millimeter-wave base station associated with the location grid of the user equipment.

[0009] According to the millimeter-wave spectrum resource sharing method provided by the present invention, the shared spectrum resources are obtained by the millimeter-wave base station from evaluating the available spectrum resources based on its own resource occupancy.

[0010] The shared spectrum resources include time resources at the time slot level, frequency resources at the resource block (RB) level, spatial resources at the grid level, and power resources.

[0011] According to the millimeter-wave spectrum resource sharing method provided by the present invention, the target base station includes one or more, and the step of obtaining 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:

[0012] Obtain the location grid of the user equipment in the resource request, and determine the millimeter-wave base station associated with the location grid among the millimeter-wave base stations;

[0013] The millimeter-wave base stations associated with the location grid are sorted in ascending order of distance from the user equipment, and the nearest neighboring base station to the user equipment is determined according to the sorting order.

[0014] If the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold, a target base station is selected from the millimeter-wave base stations associated with the location grid. The target base station is one of the top preset number of millimeter-wave base stations associated with the location grid that is closest to the user equipment, or the target base station is one of the millimeter-wave base stations associated with the location grid that is less than a preset second distance threshold, where the second distance threshold is greater than the first distance threshold.

[0015] According to the millimeter-wave spectrum resource sharing method provided by the present invention, the macro base station includes one or more; when the macro base station includes multiple macro base stations, the step of generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station includes:

[0016] Obtain the scheduling policy corresponding to the macro base station; the scheduling policy includes scheduling priority.

[0017] Resource allocation information is generated based on the scheduling strategy and the available spectrum resources, and the resource allocation information is sent to the macro base station.

[0018] According to the millimeter-wave spectrum resource sharing method provided by the present invention, before acquiring the shared spectrum resources available for transfer from the millimeter-wave base station, the method further includes:

[0019] The registration information of the millimeter-wave base station is obtained; the registration information includes the basic information of the millimeter-wave base station, including location information, base station beam pointing area information, and base station power information; the basic information is obtained by user equipment within the common coverage area of ​​the millimeter-wave base station and the macro base station through measurement and reporting.

[0020] The millimeter-wave base station is registered based on the registration information.

[0021] According to the millimeter-wave spectrum resource sharing method provided by the present invention, after obtaining the shareable spectrum resources available for transfer from each millimeter-wave base station, the method further includes:

[0022] The shared spectrum resources are aggregated and updated using a three-dimensional spatial grid so that the shared spectrum resources of the same millimeter-wave base station are located in the same spatial grid.

[0023] The present invention also provides a resource pool reflector, comprising:

[0024] The first acquisition module is used to acquire the shared spectrum resources that each millimeter-wave base station can cede;

[0025] The second acquisition module is used to acquire, when a resource request is received from a macro base station, the location grid of the user equipment in the resource request, and the target base station associated with the location grid in each millimeter-wave base station.

[0026] The resource sharing module is configured to, based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, generate resource allocation information based on the available spectrum resources, and send the resource allocation information to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0027] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the millimeter-wave spectrum resource sharing method described above.

[0028] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the millimeter-wave spectrum resource sharing method as described above.

[0029] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the millimeter-wave spectrum resource sharing method as described above.

[0030] This invention provides a millimeter-wave spectrum resource sharing method, resource pool reflector, device, and medium. By acquiring the shareable spectrum resources available from each millimeter-wave base station, when a resource request is received from a macro base station, the method acquires the location grid of the user equipment (UE) and its associated target base station from the resource request. Based on the acquired shareable spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on these available spectrum resources and sent to the macro base station. The macro base station instructs the UE to establish a communication connection with the target base station based on the resource allocation information, enabling the UE to share the available spectrum resources. By utilizing the idle resources of multiple millimeter-wave base stations to share resources with base stations requiring additional wireless resources, this invention can solve the interference caused by heterogeneous access to broadband spectrum by different devices in millimeter-wave mobile communication networks, reduce the inability of terminals to use millimeter-wave broadband networks in weak signal areas, and address communication interruptions caused by differences in the hardware performance of millimeter-wave transceivers from different terminals. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is one of the flowcharts illustrating the millimeter-wave spectrum resource sharing method provided in this embodiment of the invention;

[0033] Figure 2 This is a schematic diagram illustrating the process of obtaining tradable shared spectrum resources of millimeter-wave base stations according to an embodiment of the present invention;

[0034] Figure 3 This is a coverage diagram of macro base stations and millimeter-wave base stations provided in an embodiment of the present invention;

[0035] Figure 4 This is the second flowchart illustrating the millimeter-wave spectrum resource sharing method provided by the present invention;

[0036] Figure 5 This is a schematic diagram of the deployment of a millimeter-wave base station provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the time relationship of the spectrum resource sharing method for millimeter-wave base stations provided in an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the resource pool reflector provided by the present invention;

[0039] Figure 8This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0041] This invention proposes a millimeter-wave spectrum resource sharing method applied to millimeter-wave resource pool reflectors. Employing a resource pool reflector mechanism based on spatiotemporal frequency and power domains, it enables the sharing of wireless spectrum resources among different millimeter-wave base stations. The resource pool reflector mechanism is based on a multi-dimensional shared resource pool. Each base station searches for available resources in the pool and pre-requests resource allocation. Based on the reflector mechanism, the resource pool feeds back the determined resource allocation information to the relevant base stations at each resource scheduling time point. The base stations then schedule the relevant resources according to the resource allocation information provided by the reflector. This resource pool can be deployed at the network edge server (MEC) or in a location that can be quickly accessed by macro base stations and distributed small cells. This resource sharing mechanism can solve the interference caused by heterogeneous access to broadband spectrum by various devices in future millimeter-wave mobile communication networks, reduce the inability of terminals to use millimeter-wave broadband networks in weak signal areas, and address communication interruptions caused by differences in the hardware performance of millimeter-wave transceivers in different terminals.

[0042] Specifically, refer to Figure 1 , Figure 1 This is a flowchart illustrating the millimeter-wave spectrum resource sharing method provided in an embodiment of the present invention, based on... Figure 1 The millimeter-wave spectrum resource sharing method provided in this embodiment of the invention includes:

[0043] Step 100: Obtain the shared spectrum resources available for sale by each millimeter-wave base station;

[0044] The system acquires the shared spectrum resources available for sale from each millimeter-wave base station. These shared spectrum resources can be proactively reported by the millimeter-wave base stations periodically or during off-peak hours, or they can be reported by the base stations in response to requests from the resource pool reflector; no specific limitation is made here. The millimeter-wave resource pool reflector receives attribute information from the millimeter-wave base stations, including the spectrum resources they can sell (spectrum resources are radio frequency resources). Based on this attribute information, the system continuously updates the resource sale information provided by each millimeter-wave base station at a specific granularity of "spatiotemporal frequency and power domain."

[0045] Step 200: When a resource request from a macro base station is received, the location grid of the user equipment in the resource request and the target base station associated with the location grid in each millimeter-wave base station are obtained.

[0046] When a macro base station receives a resource request, it obtains the location grid of the user equipment (UE) in the resource request, as well as the target base station associated with that location grid among the millimeter-wave base stations. When a macro base station needs to schedule uplink and downlink services in the millimeter-wave band for a UE, in addition to using handover or dual-link methods to call the radio resources of the millimeter-wave micro base station, it can also access the millimeter-wave resource pool reflector to query the radio resource mask information of the UE's current location grid. If there are idle resources, it requests the desired radio resources from the millimeter-wave resource pool reflector. The resource dimensions include time-frequency-space and power.

[0047] Step 300: Based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources, and the resource allocation information is sent to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0048] The millimeter-wave resource pool reflector, based on the received resource request from the macro base station, determines the allocation method of time-frequency space-time and power resources in the grid where the user equipment (UE) is located and notifies the requesting base station. Specifically, based on the acquired shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the target spectrum resources and sent to the macro base station. The macro base station, based on the resource allocation information from the millimeter-wave resource pool reflector, instructs the UE to access the target base station and establish a communication connection with it, thereby enabling the UE to use the available spectrum resources of the target base station and achieving spectrum resource sharing.

[0049] Furthermore, the millimeter-wave resource pool reflector can receive resource requests from one or more macro base stations at the same time or within a certain time period; there can be one or more millimeter-wave base stations associated with the location grid of the user equipment (UE), and the target base station is some or all of all the millimeter-wave base stations associated with the location grid of the user equipment (UE); the same macro base station can send resource requests to the millimeter-wave resource pool reflector for one or more user equipment (UE) within its coverage area.

[0050] In this embodiment, by acquiring the shared spectrum resources available for sale from each millimeter-wave base station, when a resource request is received from a macro base station, the location grid of the user equipment and its associated target base station are acquired from the resource request. Based on the acquired shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources and sent to the macro base station. The macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources. By utilizing the idle resources of multiple millimeter-wave base stations to share resources with base stations that require additional wireless resources, interference between different devices accessing broadband spectrum heterogeneously in millimeter-wave mobile communication networks can be solved, reducing problems such as terminals being unable to use millimeter-wave broadband networks in weak signal areas and communication interruptions caused by differences in the hardware performance of millimeter-wave transceivers of different terminals.

[0051] Preferably, the resource request is initiated by the macro base station when it detects a burst of service traffic from the user equipment (UE) and when there are idle resources at the millimeter-wave base stations associated with the UE's location grid. That is, when the UE requires high-throughput services, the macro base station interacts with the millimeter-wave resource pool reflector to obtain information on which millimeter-wave base stations within the UE's current location grid have idle resources capable of providing communication services, as well as the available radio resources reported by each millimeter-wave base station associated with the UE's current location grid.

[0052] Furthermore, the shared spectrum resources are determined by the millimeter-wave base station's assessment of the available spectrum resources based on its own resource occupancy. These shared spectrum resources include time resources at the time slot level, frequency resources at the resource block (RB) level, spatial resources at the grid level, and power resources. The granularity of time resource allocation is actually determined by the time control granularity of the millimeter-wave resource pool reflector. Frequency resources are identified at the time resource granularity based on different three-dimensional grid spatial locations. The spatial grid granularity is constrained by the beam pointing resolution of the millimeter-wave base station.

[0053] Preferably, before acquiring the shared spectrum resources available for sale from 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 acquires the shared spectrum resources available for sale from the registered millimeter-wave resource pool reflectors. Therefore, before step 100, the process may further include:

[0054] Step 001: Obtain the registration information of the millimeter-wave base station; the registration information includes the basic information of the millimeter-wave base station, which includes location information, base station beam pointing area information, and base station power information; the basic information is obtained by user equipment within the common coverage area of ​​the millimeter-wave base station and the macro base station through measurement and reporting;

[0055] Step 002: Register the millimeter-wave base station according to the registration information.

[0056] First, the registration information of each millimeter-wave base station is obtained. This registration information includes basic information such as the base station's location, beam pointing area, and power. The basic information is obtained through measurements and reports from user equipment within the shared coverage area of ​​both millimeter-wave and macro base stations. The millimeter-wave base stations are then registered based on this registration information. The salable spectrum resources of registered millimeter-wave base stations can be shared through millimeter-wave resource pool reflectors.

[0057] Furthermore, for the tradable shared spectrum resources of registered millimeter-wave base stations, a three-dimensional spatial grid is used for grouping and summarizing. After step 100, the following may also be included:

[0058] Step 110: The shared spectrum resources are summarized and updated using a three-dimensional spatial grid so that the shared spectrum resources of the same millimeter-wave base station are located in the same spatial grid.

[0059] After obtaining the shared spectrum resources available for sale from each registered millimeter-wave base station, a three-dimensional spatial grid is used to summarize and update the obtained shared spectrum resources, with the shared spectrum resources of the same millimeter-wave base station located in the same spatial grid.

[0060] Reference Figure 2 , Figure 2 This is a schematic diagram illustrating the process of acquiring tradable shared spectrum resources for millimeter-wave base stations according to an embodiment of the present invention. Figure 2 In this context, base stations A, B, C, and D are millimeter-wave base stations already registered with the millimeter-wave resource pool reflectors, including both fixed and mobile base stations. For fixed base stations, initial registration provides base station location information, base station beam pointing area information, average historical measurement reporting information, and base station power information. When relevant information changes beyond a set threshold, it is re-reported. For mobile base stations, registration uses either periodic or aperiodic (threshold-triggered) methods to report the same information as fixed base stations.

[0061] For registered millimeter-wave base stations, the registered and transferable shared spectrum resources are sent to the millimeter-wave resource pool reflector through periodic reporting or threshold triggering. The millimeter-wave resource pool reflector uses a three-dimensional spatial grid to summarize and update the acquired shared spectrum resources. The shared spectrum resources of the same millimeter-wave base station are located in the same spatial grid in the millimeter-wave resource pool reflector.

[0062] Preferably, there can be one or more macro base stations sending resource requests to the millimeter-wave resource pool reflector. When there are multiple macro base stations, in step 300, resource allocation information is generated based on the acquired available spectrum resources, and the resource allocation information is sent to the macro base stations, specifically including:

[0063] Step 301: Obtain the scheduling strategy corresponding to the macro base station; the scheduling strategy includes scheduling priority;

[0064] Step 302: Generate resource allocation information according to the scheduling strategy and the available spectrum resources, and send the resource allocation information to the macro base station.

[0065] When multiple macro base stations receive resource requests, the scheduling policy corresponding to each macro base station is obtained. This scheduling policy includes the scheduling priority of the macro base station. Resource allocation information is generated based on the obtained shared spectrum resources and the scheduling policy, and the generated resource allocation information is sent to the macro base stations.

[0066] Furthermore, there may be one or more target base stations associated with the location grid of the user equipment (UE) requesting the resource. In step 200, obtaining the location grid of the UE in the resource request, and the target base stations associated with the location grid of the UE in each millimeter-wave base station, includes:

[0067] Step 201: Obtain the location grid of the user equipment in the resource request, and determine the millimeter-wave base station associated with the location grid among the millimeter-wave base stations;

[0068] Step 202: Sort the millimeter-wave base stations associated with the location grid in ascending order of distance from the user equipment, and determine the nearest neighboring base station to the user equipment according to the sorting order;

[0069] Step 203: If the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold, select a target base station from the millimeter-wave base stations associated with the location grid; the target base station is one of the top preset number of millimeter-wave base stations associated with the location grid that is closest to the user equipment, or the target base station is one of the millimeter-wave base stations associated with the location grid that is less than a preset second distance threshold, where the second distance threshold is greater than the first distance threshold.

[0070] To obtain the location grid of the User Equipment (UE) in the resource request, firstly, identify the millimeter-wave base stations associated with that location grid. Then, sort the millimeter-wave base stations associated with the UE's location grid in ascending order of distance from the UE, and determine the millimeter-wave base station closest to the UE according to the sorting order. If the distance between the nearest millimeter-wave base station and the UE exceeds a preset first distance threshold, select a target base station from the millimeter-wave base stations associated with the UE's location grid. The selected target base station is either a preset number of millimeter-wave base stations closest to the UE among those associated with the UE's location grid, or a millimeter-wave base station whose distance from the UE is less than a preset second distance threshold, where the second distance threshold is greater than the first distance threshold.

[0071] In one embodiment, the millimeter-wave resource pool reflector uses a three-dimensional spatial grid as the primary index to aggregate and update information reported by each millimeter-wave base station. The following describes the specific processing flow of the spectrum resource sharing method based on a single grid granularity. Each millimeter-wave base station assesses the available radio resources based on the current radio resource occupancy, specifically including time resources at the time slot granularity, frequency resources at the resource block (RB) unit, spatial resources at the grid granularity, and resources at the power granularity. The granularity of time resource allocation is actually determined by the time control granularity of the millimeter-wave resource pool reflector. Frequency resources are identified based on different three-dimensional grid spatial locations at the time resource granularity. The spatial grid granularity is constrained by the beam pointing resolution of the millimeter-wave base station. Base stations using passive phase shifters can use only a few active transceiver units, greatly reducing costs, while supporting beamforming. Taking a millimeter-wave base station configured with a passive phase shifter array and active transceiver units as an example, its coverage diagram for a specific area compared to a macro base station is shown below. Figure 3 As shown.

[0072] based on Figure 3 For a User Equipment (UE) entering an area shared by both a macro base station and a millimeter-wave micro base station, it can report information such as its own location grid relative to the macro base station, its location relative to multiple millimeter-wave base stations, and the signal strength of a specific beam from a particular millimeter-wave base station to the macro base station through measurement and reporting. This reported information is processed and acquired by the millimeter-wave resource pool reflector, serving as the basis for spectrum resource sharing. After accumulating a certain amount of information, the millimeter-wave resource pool reflector can determine the expected signal strength between the UE and multiple adjacent millimeter-wave base stations within a certain size grid area, when the millimeter-wave micro base station is not transmitting a signal, based on the UE's reported location relative to the macro base station.

[0073] Reference Figure 4 Another flowchart illustrating the spectrum resource sharing method shows that when a macro base station needs to schedule uplink and downlink services in the millimeter-wave band for one or more user equipment (UE) within its coverage area, the macro base station scheduler accesses the millimeter-wave resource pool reflector to query the radio resource mask information of the grid where the UE is currently located, thereby checking whether there are available shared resources among the millimeter-wave base stations associated with the grid where the UE is located. If available resources are determined, a resource request is initiated to the millimeter-wave resource pool reflector based on the desired radio resources. The requested resource dimensions include time-frequency space and power. Based on the multiple requests received from macro base stations, the millimeter-wave resource pool reflector determines the allocation method of time-frequency space and power resources in each grid after the request window closes, based on priority and other strategies, and notifies the requesting macro base stations in the scheduling window. Upon receiving the configuration confirmation message, the macro base station will schedule the corresponding UE to access the corresponding millimeter-wave base station for communication according to the configuration and follow the correct steps, thus achieving spectrum resource sharing among the millimeter-wave base stations.

[0074] The advantage of using millimeter-wave resource pool reflectors is that the communication network can provide services using only Sub-6GHz macro base stations during idle periods, while shutting down millimeter-wave base stations within the coverage area. When a user equipment (UE) requires high-throughput services, the macro base station interacts with the millimeter-wave resource pool reflector to obtain information on which millimeter-wave micro base stations within the current UE's location grid can provide communication services, as well as the available radio resource information reported by each millimeter-wave base station associated with the UE's location grid.

[0075] Millimeter-wave base stations registered with the millimeter-wave resource pool reflector are mainly millimeter-wave type 2-O base stations. Taking a 26GHz millimeter-wave micro base station as an example, due to the propagation characteristics of millimeter waves, they are easily blocked by obstacles, which can affect service continuity in complex environments. However, due to network construction costs and maintenance expenses, coverage cannot be improved by significantly increasing the deployment density of micro base stations. In this embodiment, a typical deployment scenario for millimeter-wave base stations is as follows: Figure 5 As shown, in Figure 5 In this scenario, User Equipment 1 (UE1), which is closer to Millimeter Wave Base Station A, can directly obtain services from Millimeter Wave Base Station A. When the distance to the Millimeter Wave Base Station is greater, such as for User Equipment UE2 and User Equipment UE3, the Millimeter Wave Resource Pool Reflector can establish communication with User Equipment UE2 and User Equipment UE3 by using macro diversity and multipoint assistance techniques, based on the available resources reported by the Millimeter Wave Base Station, and utilizing the shared spectrum resources offered by multiple adjacent idle Millimeter Wave Base Stations.

[0076] The duration of millimeter-wave resources scheduled by the millimeter-wave resource pool reflector each time is determined based on a certain configuration granularity, such as 50 milliseconds or 100 milliseconds. The millimeter-wave base stations involved will complete all cell initialization work within the configured handover delay window.

[0077] When providing access services to a User Equipment (UE) using "Main Millimeter Wave Single Cell A," the processing flow is consistent with the handover or dual connectivity workflow. However, when employing a macro diversity multi-point assistance mechanism, in addition to Cell A, multiple empty millimeter wave base stations selected by the millimeter wave resource pool reflector will also use the same time-frequency resources and beams pointing towards the grid where the UE is located to send downlink information to the UE based on the macro diversity mechanism. During uplink, multiple selected millimeter wave base stations providing shared spectrum resources will also receive the uplink information sent by the UE according to their configuration. After demodulation, the received soft value will be forwarded to "Main Millimeter Wave Single Cell A," and uplink decoding will be performed after soft combining.

[0078] In multi-carrier networks, when different carriers use their respective licensed frequency bands, millimeter-wave base stations, when idle, can register with the millimeter-wave resource pool reflector and provide resource allocation information based on the granularity of "spatiotemporal frequency and power domain." Because different carriers use different licensed millimeter-wave frequency bands, during macro diversity scheduling, the millimeter-wave resource pool reflector can only use millimeter-wave frequency resources and related base stations from the same carrier for macro diversity. However, when millimeter-wave base stations are deployed using a shared frequency resource approach, millimeter-wave base stations deployed by different carriers can all provide services to user equipment, achieving resource sharing.

[0079] Furthermore, based on the working principle of the millimeter-wave resource pool reflector, to improve processing efficiency, registered base stations indicate shared resources at the coverage area positioning grid granularity. It can also support a single operator's internal macro base station to assume the control plane and use one or more millimeter-wave base stations to provide macro diversity services to specific user equipment (UEs). Cross-operator macro diversity is also supported. In cross-operator macro diversity, if the millimeter-wave frequency bands between operators are licensed, macro diversity can only be performed using millimeter-wave base stations of the same operator; if the millimeter-wave frequency bands are shared, macro diversity can be provided to user equipment belonging to different operators. The working principle of the millimeter-wave resource pool reflector also includes the millimeter-wave base station identifying the shared resources allocated on the reflector based on the resource allocation time granularity. It is required that the identified shared resources be completed before the application for that resource begins. The time relationship of the spectrum resource sharing method of the millimeter-wave base station is as follows: Figure 6 As shown. In Figure 6In this system, millimeter-wave base stations provide salable shared resources, identified by mask information. Base stations requiring millimeter-wave frequency band resources access the resource pool reflector, search for and request shared resources, and the millimeter-wave resource pool reflector coordinates resource request conflicts among macro base stations. In response to a macro base station's resource request, it determines the shared resources available to the requesting macro base station. After scheduling and preparing the shared resources, the millimeter-wave base station uses the obtained shared resources to communicate with the user equipment (UE). It should be noted that... Figure 6 The time intervals shown are for illustrative purposes only.

[0080] The purpose of the millimeter-wave spectrum resource sharing method provided in this invention is to utilize millimeter-wave resource pool reflectors to provide radio resource services to user equipment (UEs) located within each geographical grid in the fastest and most accurate manner possible. When a UE is located far from a millimeter-wave base station, multiple base stations can be easily scheduled and communication can be achieved using macro diversity, provided the link budget permits. For UEs requiring high communication reliability, macro diversity can further enhance reliability.

[0081] In addition to time, frequency, and spatial beam resources, power resources are also an important factor for coordinated shared resources. For downlink signals, for commonly used passive phase shifter millimeter-wave base stations, if there is only one source transceiver, it can typically only transmit in one beam direction per time slot, and can use full power. For uplink signals, since the terminal's transmit power is limited, configuring multiple millimeter-wave base stations for macro diversity reception will improve the overall link gain.

[0082] In this embodiment, leveraging the beamforming and positioning capabilities of macro base stations and millimeter-wave base stations, a millimeter-wave resource pool reflector is established based on a spatial three-dimensional grid. Each millimeter-wave base station can identify shareable resources on the millimeter-wave resource pool reflector based on its own radio resource usage within the three-dimensional grid. For base stations requiring additional radio resources, for example, if a base station discovers that the channel quality of a user equipment (UE) does not meet service requirements, or that stable communication cannot be maintained due to environmental disturbances, but other millimeter-wave base stations in the spatial grid where the UE is located currently have shareable resources, a resource request can be made. Communication with the UE can be maintained through the collaborative approach of multiple external millimeter-wave base stations.

[0083] Furthermore, millimeter-wave resource pool reflectors are used to provide radio resource services to user equipment (UEs) located within each geographic grid as quickly and accurately as possible. When a UE is located far from a millimeter-wave base station, multiple base stations can be scheduled if the link budget permits, and communication can be achieved using macro diversity. For UEs with high reliability requirements, macro diversity can further improve reliability. Specifically, in the downlink direction, macro diversity is configured so that multiple base stations use beams pointing to the same grid and transmit the same signal on the same time-frequency resources, aiming to ensure that the UE receives a strong radio signal. In the uplink direction, multiple millimeter-wave base stations are configured to receive the uplink signal from the UE, and the uplink signal quality is improved through multi-point cooperative reception.

[0084] The resource pool reflector provided by the present invention is described below. The resource pool reflector described below can be referred to in correspondence with the millimeter-wave spectrum resource sharing method described above.

[0085] Reference Figure 7 The resource pool reflector provided in this embodiment of the invention includes:

[0086] The first acquisition module 10 is used to acquire the shared spectrum resources that each millimeter-wave base station can cede;

[0087] The second acquisition module 20 is used to acquire, when receiving a resource request from a macro base station, the location grid of the user equipment in the resource request, and the target base station associated with the location grid in each millimeter-wave base station;

[0088] The resource sharing module 30 is configured to, based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, generate resource allocation information based on the available spectrum resources, and send the resource allocation information to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0089] In one embodiment, the resource request is initiated by the macro base station when it detects a burst of service traffic on the user equipment and there are idle resources at the millimeter-wave base station associated with the location grid of the user equipment.

[0090] In one embodiment, the shared spectrum resources are obtained by the millimeter-wave base station from evaluating the available spectrum resources based on its own resource occupancy.

[0091] The shared spectrum resources include time resources at the time slot level, frequency resources at the resource block (RB) level, spatial resources at the grid level, and power resources.

[0092] In one embodiment, the target base station includes one or more, and the second acquisition module 20 is further configured to:

[0093] Obtain the location grid of the user equipment in the resource request, and determine the millimeter-wave base station associated with the location grid among the millimeter-wave base stations;

[0094] The millimeter-wave base stations associated with the location grid are sorted in ascending order of distance from the user equipment, and the nearest neighboring base station to the user equipment is determined according to the sorting order.

[0095] If the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold, a target base station is selected from the millimeter-wave base stations associated with the location grid. The target base station is one of the top preset number of millimeter-wave base stations associated with the location grid that is closest to the user equipment, or the target base station is one of the millimeter-wave base stations associated with the location grid that is less than a preset second distance threshold, where the second distance threshold is greater than the first distance threshold.

[0096] In one embodiment, the macro base station includes one or more; when the macro base station includes multiple macro base stations, the resource sharing module 30 is further configured to:

[0097] Obtain the scheduling policy corresponding to the macro base station; the scheduling policy includes scheduling priority.

[0098] Resource allocation information is generated based on the scheduling strategy and the available spectrum resources, and the resource allocation information is sent to the macro base station.

[0099] In one embodiment, the resource pool reflector further includes a registration module for:

[0100] The registration information of the millimeter-wave base station is obtained; the registration information includes the basic information of the millimeter-wave base station, including location information, base station beam pointing area information, and base station power information; the basic information is obtained by user equipment within the common coverage area of ​​the millimeter-wave base station and the macro base station through measurement and reporting.

[0101] The millimeter-wave base station is registered based on the registration information.

[0102] In one embodiment, the first acquisition module 10 is further configured to:

[0103] The shared spectrum resources are aggregated and updated using a three-dimensional spatial grid so that the shared spectrum resources of the same millimeter-wave base station are located in the same spatial grid.

[0104] Figure 8 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 8 As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute a millimeter-wave spectrum resource sharing method, which includes:

[0105] Obtain the shared spectrum resources available for sale from each millimeter-wave base station;

[0106] When a resource request from a macro base station is received, the location grid of the user equipment in the resource request and the target base station associated with the location grid in each millimeter-wave base station are obtained.

[0107] Based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources, and the resource allocation information is sent to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0108] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0109] On the other hand, the present invention also provides a computer program product, the computer program product comprising a computer program that can be stored on a non-transitory computer-readable storage medium, wherein when the computer program is executed by a processor, the computer is able to execute the millimeter-wave spectrum resource sharing method provided by the above methods, the method comprising:

[0110] Obtain the shared spectrum resources available for sale from each millimeter-wave base station;

[0111] When a resource request from a macro base station is received, the location grid of the user equipment in the resource request and the target base station associated with the location grid in each millimeter-wave base station are obtained.

[0112] Based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources, and the resource allocation information is sent to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0113] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the millimeter-wave spectrum resource sharing method provided by the methods described above, the method comprising:

[0114] Obtain the shared spectrum resources available for sale from each millimeter-wave base station;

[0115] When a resource request from a macro base station is received, the location grid of the user equipment in the resource request and the target base station associated with the location grid in each millimeter-wave base station are obtained.

[0116] Based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources, and the resource allocation information is sent to the macro base station; the macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources.

[0117] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0118] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for sharing millimeter-wave spectrum resources, characterized in that, include: Obtain the shared spectrum resources available for sale from each millimeter-wave base station; When a resource request from a macro base station is received, the location grid of the user equipment in the resource request and the target base station associated with the location grid in each millimeter-wave base station are obtained. Based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, resource allocation information is generated based on the available spectrum resources, and the resource allocation information is sent to the macro base station; The macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources; The target base station includes one or more, and the step of obtaining the location grid of the user equipment in the resource request, and the target base station associated with the location grid in each millimeter-wave base station, includes: Obtain the location grid of the user equipment in the resource request, and determine the millimeter-wave base station associated with the location grid among the millimeter-wave base stations; The millimeter-wave base stations associated with the location grid are sorted in ascending order of distance from the user equipment, and the nearest neighboring base station to the user equipment is determined according to the sorting order. If the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold, a target base station is selected from the millimeter-wave base stations associated with the location grid. The target base station is one of the top preset number of millimeter-wave base stations associated with the location grid that is closest to the user equipment, or the target base station is one of the millimeter-wave base stations associated with the location grid that is less than a preset second distance threshold, where the second distance threshold is greater than the first distance threshold.

2. The millimeter-wave spectrum resource sharing method according to claim 1, characterized in that, The resource request is initiated by the macro base station when it detects a sudden surge in service traffic to the user equipment and there are idle resources at the millimeter-wave base station associated with the location grid of the user equipment.

3. The millimeter-wave spectrum resource sharing method according to claim 1, characterized in that, The shared spectrum resources are obtained by the millimeter-wave base station from evaluating the available spectrum resources based on its own resource occupancy. The shared spectrum resources include time resources at the time slot level, frequency resources at the resource block (RB) level, spatial resources at the grid level, and power resources.

4. The millimeter-wave spectrum resource sharing method according to claim 1, characterized in that, The macro base station includes one or more; when the macro base station includes multiple macro base stations, the step of generating resource allocation information based on the available spectrum resources and sending the resource allocation information to the macro base station includes: Obtain the scheduling policy corresponding to the macro base station; the scheduling policy includes scheduling priority. Resource allocation information is generated based on the scheduling strategy and the available spectrum resources, and the resource allocation information is sent to the macro base station.

5. The millimeter-wave spectrum resource sharing method according to claim 1, characterized in that, Before obtaining the shared spectrum resources available for sale from each millimeter-wave base station, the process also includes: The registration information of the millimeter-wave base station is obtained; the registration information includes the basic information of the millimeter-wave base station, including location information, base station beam pointing area information, and base station power information; the basic information is obtained by user equipment within the common coverage area of ​​the millimeter-wave base station and the macro base station through measurement and reporting. The millimeter-wave base station is registered based on the registration information.

6. The millimeter-wave spectrum resource sharing method according to claim 1, characterized in that, After obtaining the shared spectrum resources available for sale by each millimeter-wave base station, the process also includes: The shared spectrum resources are aggregated and updated using a three-dimensional spatial grid so that the shared spectrum resources of the same millimeter-wave base station are located in the same spatial grid.

7. A resource pool reflector, characterized in that, include: The first acquisition module is used to acquire the shared spectrum resources that each millimeter-wave base station can cede; The second acquisition module is used to acquire, when a resource request is received from a macro base station, the location grid of the user equipment in the resource request, and the target base station associated with the location grid in each millimeter-wave base station. The resource sharing module is used to, based on the shared spectrum resources, if it is determined that the target base station has available spectrum resources, generate resource allocation information based on the available spectrum resources, and send the resource allocation information to the macro base station; The macro base station instructs the user equipment to establish a communication connection with the target base station based on the resource allocation information, so that the user equipment can share the available spectrum resources; The target base station includes one or more, and the step of obtaining the location grid of the user equipment in the resource request, and the target base station associated with the location grid in each millimeter-wave base station, includes: Obtain the location grid of the user equipment in the resource request, and determine the millimeter-wave base station associated with the location grid among the millimeter-wave base stations; The millimeter-wave base stations associated with the location grid are sorted in ascending order of distance from the user equipment, and the nearest neighboring base station to the user equipment is determined according to the sorting order. If the distance between the adjacent base station and the user equipment exceeds a preset first distance threshold, a target base station is selected from the millimeter-wave base stations associated with the location grid. The target base station is one of the top preset number of millimeter-wave base stations associated with the location grid that is closest to the user equipment, or the target base station is one of the millimeter-wave base stations associated with the location grid that is less than a preset second distance threshold, where the second distance threshold is greater than the first distance threshold.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the millimeter-wave spectrum resource sharing method as described in any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the millimeter-wave spectrum resource sharing method as described in any one of claims 1 to 6.

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