A cell adjustment method, related device and related equipment

Abstract

The present application discloses a method, related apparatus and related equipment for cell adjustment, which are used in the field of communications. In the embodiment method of the present application, when the first adjustment condition is met, the coverage areas of L first cells and the coverage areas of M second cells are adjusted, and then the adjusted L first cells are adjusted to the cell prohibited state, and the user equipment residing in the L adjusted first cells are switched to the M adjusted second cells, and when the second adjustment condition is met, the user equipment to be switched is selected from the user equipment residing in the M adjusted second cells, and then the user equipment to be switched is switched to the L adjusted first cells, and finally the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells are adjusted. Therefore, after the user equipment completes the cell adjustment, the service coverage range will not be affected, and the service will not be interrupted during the process of the user equipment switching cells, thereby ensuring the quality of service.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to a cell adjustment method, related apparatus, and related equipment. Background Art

[0002] With the rapid growth of wireless traffic, the continuous expansion of networks, and the increasing complexity of networking, network energy conservation and consumption reduction are facing more challenges, from non-splitting scenarios to various splitting scenarios. In low-load scenarios, or for users with low data demands and redundant signal coverage, it is possible to consider shutting down some antennas / RF channels to reduce RF power consumption. However, channel shutdown can degrade downlink rate, coverage, and other performance, so hard and soft splitting can be used. Hybrid digital-analog splitting and multi-sector solutions can reduce or limit the performance loss caused by channel shutdown.

[0003] Currently, intelligent or dynamic RF channel shutdown is available. This means shutting down some of the cell's transmit channels when there is no service or the service load is low during a set time period. Dynamic RF channel shutdown, on the other hand, means that when the cell's short-term service load is low during a set time period, the eNodeB shuts down some of the cell's transmit channels to save power consumption of the RF module. When the cell's instantaneous load increases, all transmit channels are quickly restored to ensure a secure user experience. However, in scenarios such as 8T networking, intelligent or dynamic RF channel shutdown can only shut down half of the channels. Forcibly shutting down more channels will affect service coverage and reduce service quality. Summary of the Invention

[0004] The present invention provides a method, apparatus, and device for cell adjustment, which ensures that the service coverage of a user equipment is not affected after the cell adjustment is completed, thereby ensuring service quality. Furthermore, service is not interrupted during the cell switching process of the user equipment, further ensuring service quality.

[0005] A first aspect of an embodiment of the present application provides a method for cell adjustment, which can be performed by a cell adjustment device, or can also be performed by a chip configured in the cell adjustment device, and this application is not limited to this. The method includes: when a first adjustment condition is met, adjusting the coverage areas of L first cells and the coverage areas of M second cells, at this time, the coverage areas of the L adjusted first cells overlap with the coverage areas of the M adjusted second cells, the L adjusted first cells and the M adjusted second cells use a first frequency point, L ≥ 1, M ≥ 1. Based on this, the adjusted L first cells are adjusted to the cell prohibited state, and the user equipment residing in the L adjusted first cells are switched to the M adjusted second cells. When the second adjustment condition is met, the user equipment to be switched is selected from the user equipment residing in the M adjusted second cells, and then the user equipment to be switched is switched to the L adjusted first cells. Finally, the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells are adjusted. At this time, the coverage area of the re-adjusted first cell does not overlap with the coverage area of the re-adjusted second cell, and the coverage area of each re-adjusted first cell does not overlap, and the coverage area of each re-adjusted second cell does not overlap.

[0006] In this embodiment, when the first adjustment condition is met, user equipment residing in one cell can be handed over to another cell using the same frequency, and the coverage areas of the cells can be adjusted to overlap. This ensures that the user equipment's service coverage remains unchanged after the cell adjustment, thus guaranteeing service quality. Secondly, when the second adjustment condition is met, the user can be handed back to a cell using the same frequency, and the coverage areas of the cells can be adjusted to not overlap. This ensures that service is not interrupted during the handover process, further guaranteeing service quality.

[0007] In a possible implementation of the first aspect, after adjusting the coverage areas of the L first cells and the coverage areas of the M second cells, and before adjusting the adjusted L first cells to a cell-barred state and handing over user equipment residing in the L adjusted first cells to the M adjusted second cells, it is also necessary to eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells. Secondly, after the adjusted L first cells are adjusted to a cell-barred state and user equipment residing in the L adjusted first cells is handed over to the M adjusted second cells, the L adjusted first cells are shut down.

[0008] In this embodiment, co-channel interference will occur within the overlapping coverage areas, which will directly affect the service quality of the user equipment. Based on the fact that the coverage areas of the first cell and the second cell overlap after adjustment, it is necessary to eliminate co-channel interference to ensure service quality. Secondly, since the user equipment residing in the first cell has been handed over to the second cell, shutting down the first cell can save data transmission and reception resources, thereby reducing the consumption of data transmission and reception resources in the cell and improving the energy saving effect of the cell.

[0009] In another possible implementation of the first aspect, when the physical resource block PRB utilization is less than a first preset threshold, at least one transmission channel of the M adjusted second cells is closed, and the number of transmission channels closed is less than or equal to the preset number threshold.

[0010] In this embodiment, after completing the switching of the user equipment, if the PRB utilization rate further decreases to less than the first preset threshold, it means that the data transceiver resources required by the user equipment residing in the second cell are decreasing, that is, the service load of the second cell is decreasing. At this time, the transmission channel of the second cell can be shut down, thereby saving the consumption of the cell's data transceiver resources again and further improving the cell's energy-saving effect.

[0011] In another possible implementation of the first aspect, after selecting the user equipment to be switched from the user equipment residing in the M adjusted second cells, and before switching the user equipment to be switched to the L adjusted first cells, it is also necessary to restore data transmission and reception of the L adjusted first cells, and eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

[0012] In this embodiment, in order to save the consumption of data receiving and sending resources of the cell, the first cell that does not provide business services is shut down in the above embodiment. When the demand for cell business increases, that is, the cell load increases, some user equipment in the second cell needs to be switched to the first cell. Therefore, it is necessary to restore data receiving and sending in the first cell to share the business services, thereby ensuring that the first cell can provide business services after the user equipment performs cell adjustment, further ensuring the service quality. Secondly, since the coverage areas of the first cell and the second cell still overlap at this time, the failure to avoid co-channel interference will directly affect the service quality of the user equipment. Therefore, it is also necessary to eliminate co-channel interference to ensure service quality.

[0013] In another possible implementation of the first aspect, before adjusting the coverage areas of the L first cells and the coverage areas of the M second cells, the service cell can be split into L first cells and M second cells based on the first weight, and at this time the service cell is a cell using the first frequency point.

[0014] In this embodiment, by changing the weight of the digital domain of the serving cell, the beamforming effect of the serving cell can be changed, thereby splitting the serving cell into multiple cells. The number and coverage area of the resulting cells can be adjusted based on the first weight, thereby improving the feasibility and flexibility of this solution. Secondly, the first cell and the second cell obtained after splitting the serving cell are cells using the first frequency point. Therefore, when the user equipment subsequently switches between the first cell and the second cell, it does not need to use other frequencies. Therefore, using the same frequency point can save resource consumption.

[0015] In another possible implementation of the first aspect, the coverage areas of the L first cells and the coverage areas of the M second cells are adjusted based on the second weight. Secondly, the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells are adjusted based on the first weight.

[0016] In this implementation, different weights can be used to adjust the coverage area of the first cell and the coverage area of the second cell, thereby improving the feasibility and flexibility of this solution.

[0017] In another possible implementation manner of the first aspect, the first adjustment condition is that the PRB utilization rate is less than a second preset threshold, and the second adjustment condition is that the PRB utilization rate is greater than a third preset threshold.

[0018] In this embodiment, the PRB utilization rate can accurately reflect the load situation of the cell. Therefore, judging whether the cell adjustment of the user equipment is required based on the PRB utilization rate can more accurately judge the load situation of the cell, so that the switching of the user equipment can be completed in an appropriate scenario, thereby improving the feasibility of this solution and ensuring the reliability and accuracy of the cell adjustment.

[0019] In a second aspect, the present application provides a cell adjustment device, the cell adjustment device comprising:

[0020] an adjustment module, configured to adjust, when a first adjustment condition is met, coverage areas of the L first cells and coverage areas of the M second cells, wherein the coverage areas of the L adjusted first cells overlap with the coverage areas of the M adjusted second cells, the L adjusted first cells and the M adjusted second cells use a first frequency point, and L ≥ 1, M ≥ 1;

[0021] a handover module, configured to adjust the adjusted L first cells to a cell barring state, and handover user equipment residing in the L adjusted first cells to the M adjusted second cells;

[0022] A selection module, configured to select a user equipment to be handed over from the user equipments residing in the M adjusted second cells when a second adjustment condition is met;

[0023] The handover module is further configured to handover the user equipment to be handed over to the L adjusted first cells;

[0024] The adjustment module is also used to adjust the coverage areas of L adjusted first cells and the coverage areas of M adjusted second cells, wherein the coverage area of the re-adjusted first cell does not overlap with the coverage area of the re-adjusted second cell, and the coverage area of each re-adjusted first cell does not overlap, and the coverage area of each re-adjusted second cell does not overlap.

[0025] In a possible implementation of the second aspect, the cell adjustment device further includes a cancellation module and a shutdown module;

[0026] an elimination module, configured to, after the adjustment module adjusts the coverage areas of the L first cells and the coverage areas of the M second cells, and before the handover module adjusts the adjusted L first cells to a cell-barred state and hands over user equipment residing in the L adjusted first cells to the M adjusted second cells, eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells;

[0027] The shut-down module is configured to shut down the L adjusted first cells after the switching module adjusts the L adjusted first cells to a cell barring state and switches user equipment residing in the L adjusted first cells to the M adjusted second cells.

[0028] In another possible implementation of the second aspect, the shutdown module is further used to shut down at least one transmission channel of the M adjusted second cells when the physical resource block PRB utilization is less than a first preset threshold, wherein the number of transmission channels shut down is less than or equal to the preset number threshold.

[0029] In another possible implementation of the second aspect, the cell adjustment apparatus further includes a recovery module;

[0030] a recovery module, configured to recover data transmission and reception of the L adjusted first cells after the selection module selects the user equipment to be switched from the user equipment residing in the M adjusted second cells and before the switching module switches the user equipment to be switched to the L adjusted first cells;

[0031] The elimination module is further configured to eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

[0032] In another possible implementation of the second aspect, the cell adjustment device further includes a splitting module;

[0033] The splitting module is configured to split the serving cell into L first cells and M second cells based on a first weight before the adjustment module adjusts the coverage areas of the L first cells and the coverage areas of the M second cells, wherein the serving cell is a cell using the first frequency point.

[0034] In another possible implementation manner of the second aspect, the adjustment module is specifically configured to adjust the coverage areas of the L first cells and the coverage areas of the M second cells based on the second weight;

[0035] The adjustment module is specifically configured to adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells based on the first weight.

[0036] In another possible implementation of the second aspect, the first adjustment condition is that the PRB utilization rate is less than a second preset threshold;

[0037] The second adjustment condition is that the PRB utilization rate is greater than a third preset threshold.

[0038] In a third aspect, the present application provides a network device comprising a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the method in any possible implementation of the first aspect described above. Optionally, the network device also includes a memory. Optionally, the network device also includes a communication interface, the processor is coupled to the communication interface, and the communication interface is used to input and / or output information, wherein the information includes at least one of instructions and data. It should be understood that the communication interface can be implemented by the same hardware logic or by different hardware logic. For example, a hardware interface can have only input or output functions, or a hardware interface can have both input and output functions.

[0039] In another implementation, the network device is a chip or chip system configured in the network device. When the network device is a chip or chip system configured in the network device, the communication interface can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuits. The processor can also be embodied as a processing circuit or a logic circuit.

[0040] In the specific implementation process, the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip or can be set on different chips. The embodiments of the present application do not limit the type of memory and the setting method of the memory and the processor.

[0041] It should be understood that related information exchange processes, such as sending a message, can be the process of outputting a message from a processor, and receiving a message can be the process of inputting a received message into the processor. Specifically, the information output by the processor can be output to a transmitter, and the input information received by the processor can come from a receiver. The transmitter and receiver can be collectively referred to as a transceiver.

[0042] In a fourth aspect, the present application provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any possible implementation of the first aspect.

[0043] In a specific implementation, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, or various logic circuits. The input signal received by the input circuit may be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter. The input circuit and the output circuit may be the same circuit, which functions as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0044] In a fifth aspect, the present application provides a computer program product, which includes: a computer program (also referred to as code, or instructions), which, when executed, enables a computer to execute the method in any possible implementation of the first aspect above.

[0045] In a sixth aspect, the present application provides a computer-readable storage medium, which stores a computer program (also referred to as code, or instructions) which, when run on a computer, enables the computer to execute the method in any possible implementation of the first aspect above.

[0046] In the seventh aspect, the present application provides a non-volatile computer-readable storage medium, which stores a computer program (also referred to as code, or instructions) that, when run on a computer, enables the computer to execute the method in any possible implementation of the first aspect above.

[0047] In an eighth aspect, the present application provides a chip system comprising a processor and an interface, wherein the interface is used to obtain a program or instruction, and the processor is used to call the program or instruction to implement the functions involved in the first aspect.

[0048] In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the network device. The chip system can be composed of a chip or include a chip and other devices.

[0049] It should be noted that the beneficial effects brought about by the implementation methods of the second to eighth aspects of this application can be understood with reference to the implementation method of the first aspect, and therefore are not repeated. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of the system framework in the embodiment of the present application;

[0051] Figure 2 A schematic diagram of an embodiment of a method for cell adjustment in an embodiment of the present application;

[0052] Figure 3 Schematic diagram of forming a first cell and a second cell through digital-analog hybrid beamforming in an embodiment of the present application;

[0053] Figure 4 This is another schematic diagram of forming a first cell and a second cell through digital-analog hybrid beamforming in an embodiment of the present application;

[0054] Figure 5 This is a flowchart of a cell adjustment method in an embodiment of the present application;

[0055] Figure 6 This is a schematic diagram of an embodiment of a cell adjustment device in an embodiment of the present application;

[0056] Figure 7 This is a schematic block diagram of a communication device in an embodiment of the present application. DETAILED DESCRIPTION

[0057] The present invention provides a method, apparatus, and device for cell adjustment, which ensures that the service coverage of a user equipment is not affected after the cell adjustment is completed, thereby ensuring service quality. Furthermore, service is not interrupted during the cell switching process of the user equipment, further ensuring service quality.

[0058] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as LTE systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, and universal mobile telecommunication systems (UMTS). With the continuous development of communication systems, the technical solutions of the present application can be applied to fifth-generation (5G) systems or new radio (NR) systems, and can also be applied to future networks such as 6G systems and even future systems; or can also be used in device-to-device (D2D) systems, machine-to-machine (M2M) systems, and so on.

[0059] It should be understood that the network device in the communication system can be any device with wireless transceiver function or a chip that can be set in the device, and the device includes but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (for example, Home evolved NodeB, or Home Node B, HNB), Base Band Unit (BBU), Access Point (AP) in Wireless Fidelity (WIFI) system, Wireless Relay Node, Wireless Backhaul Node, Transmission Point (TP) It can also be a device used in 5G, 6G or even future systems, such as a gNB in an NR system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), a distributed unit (DU), a picocell, a femtocell, or a road side unit (RSU) in a vehicle to everything (V2X) or intelligent driving scenario.

[0060] In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include a radio unit (RU). The CU implements some gNB functions, while the DU implements some gNB functions. For example, the CU implements the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer, while the DU implements the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical layer (PHY). Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling, such as RRC layer signaling or PDCP layer signaling, can also be considered to be sent by the DU, or by both the DU and the RU. It is understood that a network device can be a CU node, a DU node, or a device that includes both a CU node and a DU node. Furthermore, the CU can be classified as a network device in the access network (RAN) or a network device in the core network (CN), without limitation here.

[0061] In the embodiments disclosed in the present application, the device for implementing the function of the network device may be the network device; or it may be a device capable of supporting the network device to implement the function, such as a chip system, which may be installed in the network device.

[0062] It should also be understood that the terminal device in the communication system may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wireless terminal in the aforementioned V2X vehicle network or an RSU of wireless terminal type, etc. The embodiment of the present application does not limit the application scenario.

[0063] In order to make the above-mentioned purpose, technical scheme and advantage of the present application easier to understand, detailed description is provided below.The detailed description proposes various embodiments of equipment and / or process by using block diagrams, flow charts and / or examples.Because these block diagrams, flow charts and / or examples include one or more functions and / or operations, it will be understood by those skilled in the art that each function and / or operation in these block diagrams, flow charts or examples can be implemented individually and / or jointly by many hardware, software, firmware or any combination thereof.The terms "first", "second", "third", "fourth" etc. (if any) in the specification and claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than the content illustrated or described herein. In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0064] With the rapid growth of wireless traffic, the continuous expansion of networks, and the increasing complexity of networking, network energy conservation and consumption reduction are facing greater challenges, from non-split scenarios to various split scenarios. In low-load scenarios, or for users with low data demands and redundant signal coverage, shutting down some antennas / RF channels can be considered to reduce RF power consumption. However, channel shutdown degrades downlink rate, coverage, and other performance, so hard and soft splitting can be used. Hybrid digital-analog splitting and multi-sector solutions can reduce or limit the performance loss caused by channel shutdown. Currently, it is possible to shut down some transmit channels in a cell when there is no traffic or the traffic load is low within a set time period. Alternatively, the eNodeB can shut down some transmit channels in a cell when the cell has low short-term traffic load within a set time period to save RF module power. When the cell load increases, all transmit channels can be quickly restored to ensure a good user experience. However, in scenarios such as 8T networks, intelligent or dynamic RF channel shutdown can only shut down half of the channels. Forcibly shutting down more channels would affect service coverage and reduce service quality.

[0065] To solve the above problems, the embodiments of the present application provide a cell adjustment method, related apparatus, and related equipment that can ensure service quality. To better understand the cell adjustment method, related apparatus, and related equipment disclosed in the embodiments of the present application, the technical solution of the present application will be described below in conjunction with the accompanying drawings.

[0066] First, the system architecture of the communication system used in the embodiment of the present invention is described. This application can be used for a network device and multiple UEs to form a communication system, and can also be used for multiple network devices and multiple UEs to form a communication system. Based on this, Figure 1 A schematic diagram of the system framework in the embodiment of the present application is shown in FIG. Figure 1As shown, the network device and UE1 to UE6 form a communication system, wherein the network device may include one or more panels. In this communication system, UE1 to UE6 send uplink data to the network device, and the network device needs to receive the uplink data sent by UE1 to UE6, that is, it can complete the data transmission and reception between UE1 to UE6 and the network device. In addition, UE4 to UE6 can also form a communication system. Therefore, in this communication system, the network device can send downlink data to UE1, UE2 and UE5, and the network device needs to receive the uplink data sent by UE1, UE2 and UE5, that is, it can complete the data transmission and reception between UE1, UE2 and UE5 and the network device. In the communication system composed of UE4 to UE6, UE5 sends downlink data to UE4 and UE6, and UE5 needs to receive the uplink data sent by UE4 and UE6, that is, it can complete the data transmission and reception between UE5 and UE4 and UE6.

[0067] Secondly, some terms or concepts involved in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0068] 1. Channel Shutdown

[0069] In low-load scenarios, or for users with low data demands and redundant signal coverage, you can consider shutting down some antennas / RF channels to reduce RF power consumption. The RF module has two branches, downlink and uplink. Shutting down the downlink transmit channel primarily means shutting down components such as the power amplifier (PA) when there is no valid downlink information to transmit.

[0070] 2. Split Sector

[0071] Sector splitting can be accomplished in various ways, including hard splitting, soft splitting, and hybrid digital-analog splitting. Hard splitting uses a Butler matrix to map remote radio unit (RRU) channels to antennas. Two channels are mapped to the left beam, and two channels are mapped to the right beam, thus spatially separating users belonging to the left and right beams. Soft splitting replaces the hard-split Butler matrix with flexible baseband weighting to achieve beam region mapping. Hybrid digital-analog splitting, on the other hand, uses baseband weighting and antenna hardware weights to shape the beam region.

[0072] 3. Multi-sector solution

[0073] The multi-sector solution uses narrow-beam, high-gain antennas to split sectors, improve network coverage, increase the number of cells, and thus increase network system capacity.

[0074] Based on the above introduction, the cell adjustment method used in the embodiment of the present application is described in detail below with the network device as the execution subject. Figure 2 , Figure 2 This is a schematic diagram of an embodiment of a method for cell adjustment in an embodiment of the present application. The method for cell adjustment includes the following steps.

[0075] 101. Split a serving cell into L first cells and M second cells.

[0076] In this embodiment, the network device first splits the service cell into L first cells and M second cells. Specifically, based on digital-analog hybrid splitting and according to the first weight, the service cell is split into L first cells and M second cells. The service cell is a cell using the first frequency point. Therefore, the L first cells and the M second cells all use the first frequency point, that is, only a single-layer frequency point is needed to complete this solution, thereby saving resource consumption. Secondly, the coverage areas of the first cell and the second cell obtained by splitting do not overlap, and the coverage areas of each first cell do not overlap, and the coverage areas of each second cell do not overlap, minimizing the overlapping area to reduce co-frequency interference. At this time, L≥1, M≥1, that is, splitting the service cell can obtain at least one first cell and one second cell. At this time, user equipment residing in all first cells and user equipment residing in all second cells can perform normal data transmission and reception.

[0077] For ease of understanding, the following description is made by taking splitting a serving cell into one first cell and one second cell as an example. Table 1 shows the first cell and the second cell obtained based on the first weight.

[0078] Table 1

[0079]

[0080]

[0081] X in Table 1 is a variable that is adjusted according to actual conditions. Therefore, by changing the weight of the digital domain of the serving cell, the beamforming effect of the serving cell can be changed, thereby splitting the serving cell into multiple cells. The number and coverage area of the cells obtained after splitting can be adjusted based on the first weight (i.e., the X value shown in Table 1 is adjusted), thereby improving the feasibility and flexibility of this solution.

[0082] Further, based on the first cell and the second cell obtained based on the first weight shown in Table 1, an example of obtaining one first cell and one cell is given for explanation. Figure 3 , Figure 3FIG. 1 is a schematic diagram of forming a first cell and a second cell by using digital-analog hybrid beamforming in an embodiment of the present application. Figure 3 As shown, the serving cell 200 performs the splitting based on the digital-analog hybrid by the first weight. Figure 3 The simulation shaping example shown in Figure (A) is then based on Figure 3 The analog shaping example shown in Figure (A) is digitally shaped to obtain Figure 3 In the example diagram of the digital shaping of the first cell and the second cell shown in Figure (B), it can be seen that the coverage area of the first cell and the coverage area of the second cell overlap very little, and the coverage area of the first cell and the coverage area of the second cell together form the coverage area of the serving cell. It should be understood that Figure 3 The example is only used to briefly introduce how to form the first cell and the second cell and should not be understood as a limitation of the present application.

[0083] 102. When a first adjustment condition is met, adjust the coverage areas of the L first cells and the coverage areas of the M second cells.

[0084] In this embodiment, when the network device determines that the first adjustment condition is met, the network device adjusts the coverage areas of the L first cells obtained in step 101 and the coverage areas of the M second cells obtained in step 101 .

[0085] Specifically, the first adjustment condition is that the physical resource block (PRB) utilization rate is less than a second preset threshold value. The second preset threshold value may be 20% or 30%, etc. The specific second preset threshold value needs to be flexibly determined based on actual conditions and multiple PRB utilization data, and is not limited here. Since RB refers to the specific physical resource used to actually send high-layer data and signaling information at the physical layer. Each RB is composed of 12 orthogonal frequency division multiplexing (OFDM) subcarriers in frequency. The 12 subcarriers can be physically continuous or distributed, which is related to the specific system configuration mode and is not limited here. Based on this, when the PRB utilization rate is less than the second preset threshold value, it means that the user equipment has a small data demand at this time, or there is redundancy in the signal coverage within the L first cells and the M second cells. At this time, it can be determined that the data transmission and reception load within the L first cells and the M second cells is low, that is, it is in a low-load scenario. Therefore, in order to reduce radio frequency power consumption, it is necessary to adjust the coverage area of the L first cells and the coverage area of the M second cells.

[0086] Furthermore, the network device adjusts the coverage areas of the L first cells and the coverage areas of the M second cells based on the second weight value. The first weight value and the second weight value are different, and the coverage areas of the adjusted first cells and the adjusted second cells overlap. The adjusted coverage areas of the first cells and the adjusted second cells can be approximately equivalent to the overlapping areas of the coverage areas of the L first cells and the M second cells when the first weight value is used. As a result, after the cell adjustment is completed, the user equipment does not affect the service coverage range, thereby ensuring service quality.

[0087] Furthermore, when the physical resource block (PRB) utilization rate is less than a first preset threshold, at least one transmit channel of the M adjusted second cells is shut down. At this time, the number of shut-down transmit channels is less than or equal to a preset number threshold, and the first preset threshold is less than a second preset threshold. Specifically, after the user equipment handover is completed, if the data transceiver load of the M second cells continues to decrease, or the M second cells do not perform data transmission and reception (i.e., no service) within a preset time period, or the data transceiver resources required by the user equipment residing in the second cell are relatively small, the transmit channel of the second cell can be shut down. This can further save the consumption of the cell's data transceiver resources and further improve the cell's energy saving effect. Secondly, in this solution, the preset number threshold is half of the transmit channels of the second cell. For example, if the number of transmit channels of the second cell is 4, the preset number threshold is 2. Alternatively, if the number of transmit channels of the second cell is 16, the preset number threshold is 8. In this way, a certain amount of data transmission and reception requirements can be met while ensuring energy saving, thereby ensuring service quality.

[0088] For ease of understanding, the following description is made by taking splitting the serving cell into one first cell and one second cell as an example. Table 2 shows the first cell and the second cell obtained based on the second weight.

[0089] Table 2

[0090]

[0091] Y in Table 2 is a variable that is adjusted according to actual conditions. Therefore, by changing the weight of the digital domain of the serving cell, the beamforming effect of the serving cell can be changed, thereby splitting the serving cell into multiple cells. The number and coverage area of the cells obtained after splitting can be adjusted based on the second weight (i.e., the Y value shown in Table 2 is adjusted), thereby improving the feasibility and flexibility of this solution.

[0092] Further, based on the first cell and the second cell obtained based on the second weight shown in Table 2, a first cell and a cell are obtained as an example for explanation. Figure 4 , Figure 4 FIG. 1 is another schematic diagram of forming a first cell and a second cell by using digital-analog hybrid beamforming in an embodiment of the present application. Figure 4 As shown, the serving cell 300 performs the splitting based on the digital-analog hybrid by the second weight. Figure 4 The simulation shaping example shown in Figure (A) is then based on Figure 4 The analog shaping example shown in Figure (A) is digitally shaped to obtain Figure 4 In the example diagram of the digital shaping of the first cell and the second cell shown in Figure (B), it can be seen that the coverage area of the first cell is basically similar to the coverage area of the second cell, and the coverage area of the first cell is similar to the coverage area of the serving cell (i.e. Figure 3 The coverage area of the second cell is similar to the coverage area of the serving cell. Figure 4 The example is only used to briefly introduce how to form the first cell and the second cell after adjusting the coverage range, and should not be understood as a limitation of the present application.

[0093] 103. Eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

[0094] In this embodiment, since co-channel interference will be generated in the overlapping coverage area, the co-channel interference generated at this time will directly affect the service quality of the user equipment. The coverage range of the L adjusted first cells and the M adjusted second cells overlap, and there is strong interference between the cells. At this time, the network equipment needs to eliminate the co-channel interference between the cells (that is, the L adjusted first cells and the M adjusted second cells) to ensure normal signaling reception and transmission, thereby ensuring service quality.

[0095] To facilitate understanding, the co-channel interference problem faced by different channels or symbols and how to solve co-channel interference are introduced.

[0096] 1. Cell-specific reference signal (CRS)

[0097] For CRS, when the coverage of the L adjusted first cells and the M adjusted second cells overlap, since the CRS is sent at a fixed position, there will be strong co-channel interference. Based on this, it is necessary to adjust the physical cell identifiers (PCIs) of all split cells of the L adjusted first cells and the M adjusted second cells, and the modulo 3 of each cell should be as unequal as possible. For example, if there is 1 first cell and 1 second cell, then Port 2 and Port 3 are turned off (Muting), while Port 0 and Port 1 only send the first symbol, and other ports are muting. If there are 2 first cells and 2 second cells, then Port 1, Port 2 and Port 3 are all muting, and only Port 0 sends the first symbol.

[0098] 2. Primary synchronization signal (PSS) and secondary synchronization signal (SSS)

[0099] For PSS and SSS, when the coverage areas of cells overlap, strong co-channel interference will occur because PSS and SSS are transmitted at fixed locations. PSS and SSS are transmitted in subframes 0 and 5, respectively. Based on the above characteristics, the L adjusted first cells and M adjusted second cells can be transmitted in a 10 millisecond (ms) rotation.

[0100] 3. Physical Broadcast Channel (PBCH)

[0101] For PBCH, when the coverage areas of cells overlap, strong co-channel interference will occur because PBCH is transmitted at a fixed location. PBCH has a 40ms cycle and is retransmitted three times, meaning it is transmitted in subframe 0 every 10ms. Based on the aforementioned characteristics, the L adjusted first cells and the M adjusted second cells can be transmitted in a rotational manner between 10ms and 40ms.

[0102] 4. Physical Hybrid-ARQ Indicator Channel (PHICH)

[0103] For PHICH, when coverage between cells overlaps, it can be interfered with by neighboring cell CRS and the physical downlink control channel (PDCCH), resulting in strong co-channel interference. To address this, the phich-Duration parameter is configured as extended, and PHICH is distributed over symbols 1 to 3. Only symbol 1 conflicts with the neighboring cell CRS; in the event of a conflict, the CRS is not transmitted.

[0104] 5. Physical Control Format Indicator Channel (PCFICH)

[0105] For PCFICH, if the coverage areas of cells overlap, PCFICH will also be interfered with by the CRS and PDCCH of neighboring cells, resulting in strong co-channel interference. Based on this, in one possible implementation, when the phich-Duration parameter is configured as extended, the number of PDCCH symbols is fixed to 3, and PCFICH is not transmitted. In another possible implementation, PCFICH is transmitted normally, and the CRS of the neighboring cell's PCFICH and the PCFICH of the current cell that overlap is not transmitted.

[0106] 6. PDCCH

[0107] For PDCCH, if the coverage of two cells overlaps, the PDCCH will be interfered with by the CRS and PDCCH of the neighboring cell, resulting in strong co-channel interference. Based on this, the L adjusted REs of the first cell's PDCCH and the M adjusted REs of the second cell's PDCCH and the neighboring cell's CRS overlap, and the PDCCH is not transmitted. If both L and M are 1, the two cells are time-division scheduled to avoid interference with the neighboring cell's PDCCH. If at least one of L and M is not 1, transmission is carried out in a time-division rotation.

[0108] 7. Physical downlink shared channel (PDSCH)

[0109] For PDSCH, if the coverage areas of two cells overlap, PDSCH will be affected by the CRS and PDCCH of the neighboring cell, resulting in strong co-channel interference. Based on this, the phich-Duration parameter is configured as extended, and the number of PDCCH symbols is fixed to 3. If both L and M are 1, the two cells are time-division scheduled to avoid interference with neighboring cell PDSCH. If at least one of L and M is not 1, transmission is carried out in a time-division rotation.

[0110] 8. System Information Block (SIB)

[0111] For SIBs, when the coverage of cells overlaps, SIBs will be interfered with by the PDCCH and PDSCH of neighboring cells, resulting in strong co-channel interference. Since SIB1 has an 80ms period and is retransmitted four times, SIB1 is transmitted in subframe 5 of a 20ms period, while SIB 2 to SIB16 are transmitted in non-SIB1 subframes within the SI window. Based on the above characteristics, if both L and M are 1, then both cells transmit SIB1, with staggered control channel elements (CCEs) and PDSCH RBs, and both transmit SIB 2 to SIB16. If at least one of L and M is not 1, SIB 2 to SIB16 are transmitted in a time-division rotation.

[0112] 9. Physical random access channel (PRACH) and physical uplink shared channel (PUCCH)

[0113] For PRACH and PUCCH, when the coverage areas between cells overlap, user equipment between multiple cells may transmit uplink signals simultaneously, resulting in strong co-channel interference. Based on this, in one possible implementation, one cell can be selected, the selected PUCCH can be moved inward, and the PRACH can automatically move with the PUCCH. In another possible implementation, the first cell is configured according to Index 3 and the second cell is configured according to Index 4. At this time, the PRACH channels between the two cells are staggered in subframes, so the scheduling request indicator (SRI) and channel quality indicator (CQI) resource allocation time are staggered.

[0114] 10. SRS

[0115] For SRS, when the coverage of cells overlaps, user equipments in multiple cells may transmit uplink signals simultaneously, which may cause strong co-channel interference. Based on this, demodulation reference signal (DMRS) measurement is directly used instead of SRS measurement.

[0116] 104. Adjust the adjusted L first cells to a cell barring state, and hand over user equipment camped in the L adjusted first cells to the M adjusted second cells.

[0117] In this embodiment, after eliminating co-channel interference between the L adjusted first cells and the M adjusted second cells in step 103, the adjusted L first cells are adjusted to an access class barring (ACB) state, and user equipment residing in the L adjusted first cells are switched to the M adjusted second cells. Based on the foregoing embodiment, it can be seen that in a low-load scenario, in order to reduce radio frequency power consumption, the L first cells are adjusted to ACB, that is, the user equipment cannot access the adjusted L first cells, nor can it reside in the adjusted L first cells, and the user equipment will not use the adjusted L first cells as candidate cells during selection and reselection.

[0118] Furthermore, since the adjusted L first cells are adjusted to a cell-barred state, that is, the adjusted L first cells will no longer provide corresponding resources for data transmission and reception of user equipment residing in the adjusted L first cells, in order to avoid affecting the normal data transmission and reception of user equipment residing in the adjusted L first cells, it is also necessary to send a switching command to the user equipment residing in the adjusted L first cells, so that the user equipment residing in the adjusted L first cells switches to the adjusted M second cells based on the switching instruction, so as to ensure that all user equipment in the service cell can achieve normal data transmission and reception, thereby ensuring the quality of service.

[0119] 105. Turn off the L adjusted first cells.

[0120] In this embodiment, since the L adjusted first cells have been adjusted to ACBs and all the originally resident user equipments have been switched to the adjusted M second cells, the network device will shut down the L adjusted first cells to save channel resources.

[0121] 106. When the second adjustment condition is met, select a user equipment to be handed over from the user equipments residing in the M adjusted second cells.

[0122] In this embodiment, when the second adjustment condition is met, the network device selects a user device to be switched from the user devices residing in the M adjusted second cells. The second adjustment condition is that the PRB utilization rate is greater than a third preset threshold value. The third preset threshold value can be 20% or 30%, etc. The specific third preset threshold value needs to be flexibly determined based on the actual situation and the data of multiple PRB utilization rates, which is not limited here. When the PRB utilization rate is less than the third preset threshold value, it means that the user equipment has a large demand for data at this time. At this time, it can be determined that the data transmission and reception load in the M adjusted second cells is large, that is, it is in a high-load scenario. Therefore, in order to better provide business services to the user equipment, the first cell needs to start transmitting and receiving data.

[0123] Furthermore, the network device calculates the uplink equivalent reference signal receiving power (RSRP) of the first cell formed by the first weight and the uplink equivalent RSRP of the second cell formed by the first weight of the user equipment, and selects the cell to be switched by the user equipment according to the corresponding RSRP, that is, the user equipment whose uplink equivalent RSRP of the first cell formed by the first weight is better than the uplink equivalent RSRP of the second cell formed by the first weight is the user equipment to be switched (that is, the user who needs to switch back to the first cell).

[0124] 107. Resume data transmission and reception of the L adjusted first cells.

[0125] In this embodiment, in order to provide better service to the user equipment, the network device resumes data transmission and reception of the L adjusted first cells.

[0126] 108. Eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

[0127] In this embodiment, since co-channel interference will occur within the overlapping coverage areas, the co-channel interference generated will directly affect the service quality of the user equipment. The coverage areas of the L adjusted first cells and the M adjusted second cells overlap, and strong interference exists between the cells. In this case, the network equipment needs to eliminate the co-channel interference between the cells to ensure normal signaling transmission and reception, thereby ensuring service quality. The specific method for eliminating co-channel interference is similar to that described in step 104 and will not be repeated here.

[0128] 109. Hand over the user equipment to be handed over to the L adjusted first cells.

[0129] In this embodiment, the network device switches the user equipment to be switched selected in step 106 to the L adjusted first cells. Specifically, a switching command is sent to the user equipment to be switched, instructing the user equipment to be switched to switch to the L adjusted first cells.

[0130] 110. Adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells.

[0131] In this embodiment, the network device adjusts the coverage areas of the L adjusted first cells and the M adjusted second cells, so that the coverage areas of the adjusted first cells do not overlap with the coverage areas of the adjusted second cells. Specifically, the network device adjusts the coverage areas of the L adjusted first cells and the M adjusted second cells based on the first weight, that is, returns to the first cells and second cells obtained in step 101. At this point, user equipment residing in all first cells and user equipment residing in all second cells can transmit and receive data normally.

[0132] To further understand Figure 2 as well as Figure 2 The cell adjustment method described in the corresponding embodiment is described by taking the example of splitting the serving cell into one first cell and one second cell. Figure 5 , Figure 5 This is a flow chart of a cell adjustment method in an embodiment of the present application, as shown in the figure. Figure 5 The figure (A) in the middle shows the first cell and the second cell obtained by using the first weight. At this time, the coverage area of the first cell is different from the coverage area of the second cell, and both are performing normal data transmission and reception. When the first adjustment condition is met, Figure 5 The middle (B) figure shows the first cell and the second cell obtained by using the second weight. The coverage area of the first cell is similar to the coverage area of the second cell, and the coverage area of the first cell is similar to the coverage area of the second cell. Figure 5 The coverage area of the first cell shown in Figure (A) is similar to the coverage area of the second cell after superposition. Similarly, the coverage area of the second cell is also similar to Figure 5 The coverage area of the first cell shown in Figure (A) is similar to the coverage area of the second cell after being superimposed. At this time, it is necessary to eliminate the co-channel interference between the first cell and the second cell, and then hand over the user equipment residing in the first cell to the second cell. After the handover of the user equipment is completed, Figure 5 As shown in the figure (C), the first cell will be shut down and normal data transmission and reception will be carried out in the second cell. When the second adjustment condition is met, Figure 5In the diagram (D), the first cell and the second cell obtained by using the second weight are shown. At this time, data transmission and reception of the first cell will be restored, and the co-channel interference between the first cell and the second cell needs to be eliminated. Then, based on the method described in the above embodiment, the user equipment to be switched is selected and the user equipment to be switched is switched to the first cell. Finally, the coverage area of the first cell and the coverage area of the second cell are adjusted to obtain Figure 5 The middle (E) figure shows the first cell and the second cell obtained by using the first weight.

[0133] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. It can be understood that in order to realize the above functions, the cell adjustment device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the modules and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0134] In the embodiments of the present application, the cell adjustment device can be divided into functional modules based on the above-mentioned method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic and is only a logical functional division. In actual implementation, other division methods may be used.

[0135] Therefore, the cell adjustment device in this application is described in detail below. Figure 6 , Figure 6 FIG. 1 is a schematic diagram of an embodiment of a cell adjustment device in an embodiment of the present application. Figure 6 As shown, the cell adjustment device 600 includes:

[0136] an adjustment module 601, configured to adjust, when a first adjustment condition is met, coverage areas of the L first cells and coverage areas of the M second cells, wherein the coverage areas of the L adjusted first cells overlap with the coverage areas of the M adjusted second cells, the L adjusted first cells and the M adjusted second cells use a first frequency point, and L ≥ 1, M ≥ 1;

[0137] A switching module 602 is configured to adjust the adjusted L first cells to a cell barring state, and switch user equipment residing in the L adjusted first cells to the M adjusted second cells;

[0138] A selection module 603 is configured to select a user equipment to be handed over from the user equipments residing in the M adjusted second cells when a second adjustment condition is met;

[0139] The handover module 602 is further configured to handover the user to be handed over to the L adjusted first cells;

[0140] The adjustment module 601 is also used to adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells, wherein the coverage area of the re-adjusted first cell does not overlap with the coverage area of the re-adjusted second cell, and the coverage area of each re-adjusted first cell does not overlap, and the coverage area of each re-adjusted second cell does not overlap.

[0141] In an optional implementation, in the above Figure 6 On the basis of the corresponding embodiment, in another embodiment of the cell adjustment device 600 provided in the embodiment of the present application, the cell adjustment device 600 further includes a eliminating module 604 and a shutting down module 605;

[0142] an elimination module 604, configured to, after the adjustment module 601 adjusts the coverage areas of the L first cells and the coverage areas of the M second cells, and before the switching module 602 adjusts the adjusted L first cells to a cell-barred state and switches user equipment residing in the L adjusted first cells to the M adjusted second cells, eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells;

[0143] The shut-down module 605 is configured to shut down the L adjusted first cells after the switching module 602 adjusts the adjusted L first cells to a cell barring state and switches user equipment residing in the L adjusted first cells to the M adjusted second cells.

[0144] In an optional implementation, in the above Figure 6 On the basis of the corresponding embodiment, in another embodiment of the cell adjustment device 600 provided in the embodiment of the present application, the shutdown module 605 is further used to shut down at least one transmission channel of the M adjusted second cells when the physical resource block PRB utilization rate is less than the first preset threshold, wherein the number of the shut-down transmission channels is less than or equal to the preset number threshold

[0145] In an optional implementation, in the above Figure 6On the basis of the corresponding embodiment, in another embodiment of the cell adjustment device 600 provided in the embodiment of the present application, the cell adjustment device 600 further includes a recovery module 606;

[0146] a recovery module 606, configured to recover data transmission and reception of the L adjusted first cells after the selection module 603 selects the user equipment to be handed over from the user equipment residing in the M adjusted second cells and before the handover module 602 hands over the user equipment to be handed over to the L adjusted first cells;

[0147] The elimination module 604 is further configured to eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

[0148] In an optional implementation, in the above Figure 6 On the basis of the corresponding embodiment, in another embodiment of the cell adjustment device 600 provided in the embodiment of the present application, the cell adjustment device 600 further includes a splitting module 607;

[0149] The splitting module 607 is configured to split the serving cell into L first cells and M second cells based on the first weight before the adjusting module 601 adjusts the coverage areas of the L first cells and the coverage areas of the M second cells, wherein the serving cell is a cell using the first frequency.

[0150] In an optional implementation, in the above Figure 6 On the basis of the corresponding embodiment, in another embodiment of the cell adjustment device 600 provided in the embodiment of the present application, the adjustment module 601 is specifically configured to adjust the coverage areas of the L first cells and the coverage areas of the M second cells based on the second weight;

[0151] The adjustment module 601 is specifically configured to adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells based on the first weight.

[0152] In an optional implementation, in the above Figure 6 On the basis of the corresponding embodiment, in another embodiment of the cell adjustment device 600 provided in the embodiment of the present application, the first adjustment condition is that the PRB utilization rate is less than the second preset threshold;

[0153] The second adjustment condition is that the PRB utilization rate is greater than a third preset threshold.

[0154] Figure 7 FIG. 7 is a schematic block diagram of a communication device 700 in an embodiment of the present application. Figure 7As shown, the communication device 700 includes a processor 710, a transceiver 720, and a memory 730. The processor 710, the transceiver 720, and the memory 730 communicate with each other via an internal connection path. The memory 730 is used to store instructions, and the processor 710 is used to execute the instructions stored in the memory 730 to control the transceiver 720 to send and / or receive signals.

[0155] It should be understood that the communication device 700 may correspond to the network device in the above-mentioned method embodiment and may be used to execute the various steps and / or processes performed by the network device in the above-mentioned method embodiment. Optionally, the memory 730 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. The memory 730 may be a separate device or integrated into the processor 710. The processor 710 may be used to execute the instructions stored in the memory 730, and when the processor 710 executes the instructions stored in the memory, the processor 710 is used to execute the various steps and / or processes of the above-mentioned method embodiment corresponding to the network device.

[0156] Optionally, the communication device 700 is the network device in the above embodiment.

[0157] The transceiver 720 may include a transmitter and a receiver. The transceiver 720 may further include an antenna, which may be one or more. The processor 710, memory 730, and transceiver 720 may be integrated on different chips. For example, the processor 710 and memory 730 may be integrated in a baseband chip, and the transceiver 720 may be integrated in a radio frequency chip. The processor 710, memory 730, and transceiver 720 may also be integrated on the same chip. This application does not limit this.

[0158] Optionally, the communication device 700 is a component configured in a network device, such as a circuit, a chip, a chip system, etc.

[0159] The transceiver 720 may also be a communication interface, such as an input / output interface, a circuit, etc. The transceiver 720 , the processor 710 , and the memory 720 may all be integrated into the same chip, such as a baseband chip.

[0160] The present application also provides a cell adjustment device, comprising at least one processor, wherein the at least one processor is configured to execute a computer program stored in a memory, so that the cell adjustment device performs the method performed by the cell adjustment device in any of the above method embodiments.

[0161] It should be understood that the cell adjustment device may be one or more chips. For example, the cell adjustment device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0162] An embodiment of the present application further provides a cell adjustment device, comprising a processor and a communication interface. The communication interface is coupled to the processor. The communication interface is configured to input and / or output information. The information includes at least one of instructions and data. The processor is configured to execute a computer program to cause the cell adjustment device to perform the method performed by the network device in any of the above method embodiments.

[0163] The present application also provides a cell adjustment device, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program from the memory, so that the cell adjustment device executes the method executed by the network device in any of the above method embodiments.

[0164] During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it will not be described in detail here.

[0165] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0166] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0167] According to the method provided in the embodiment of the present application, the present application also provides a computer-readable storage medium, which stores a program code, and when the program code is run on a computer, the computer executes Figure 3 The methods performed by the various units in the illustrated embodiments.

[0168] The modules in the above-mentioned various apparatus embodiments correspond completely to the various units in the method embodiments, and the corresponding modules or units perform the corresponding steps. For example, the communication unit (transceiver) performs the receiving or sending steps in the method embodiments, and other steps except sending and receiving can be performed by the processing unit (processor). The functions of the specific units can be referred to in the corresponding method embodiments. Among them, there can be one or more processors.

[0169] As used in this specification, the terms "component," "module," "system," and the like are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer. By way of illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside in a process and / or an execution thread, and a component can be located on a computer and / or distributed between two or more computers. In addition, these components can be executed from various computer-readable media having various data structures stored thereon. Components can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component on a local system, a distributed system, and / or a network, such as the Internet interacting with other systems via signals).

[0170] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0171] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0172] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0173] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0174] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0175] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0176] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for cell adjustment, characterized in that: include: When the first adjustment condition is met, adjusting the coverage areas of the L first cells and the coverage areas of the M second cells, wherein the coverage areas of the L adjusted first cells overlap with the coverage areas of the M adjusted second cells, the L adjusted first cells and the M adjusted second cells use the first frequency point, L ≥ 1, M ≥ 1; Adjust the adjusted L first cells to a cell barring state, and hand over user equipment residing in the L adjusted first cells to the M adjusted second cells; When the second adjustment condition is met, selecting a user equipment to be handed over from the user equipments residing in the M adjusted second cells; Handing over the user equipment to be handed over to the L adjusted first cells; Adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells, wherein the coverage areas of the re-adjusted first cells do not overlap with the coverage areas of the re-adjusted second cells, and the coverage areas of each re-adjusted first cell do not overlap, and the coverage areas of each re-adjusted second cell do not overlap.

2. The method according to claim 1, characterized in that After adjusting the coverage areas of the L first cells and the coverage areas of the M second cells, and before adjusting the adjusted L first cells to a cell barring state and handing over user equipment residing in the L adjusted first cells to the M adjusted second cells, the method further includes: Eliminating co-channel interference between the L adjusted first cells and the M adjusted second cells; After the adjusted L first cells are adjusted to a cell barring state and user equipment residing in the L adjusted first cells is handed over to the M adjusted second cells, the method further includes: The L adjusted first cells are turned off.

3. The method according to claim 2, characterized in that The method further comprises: When the physical resource block (PRB) utilization rate is less than a first preset threshold, at least one transmission channel of the M adjusted second cells is closed, wherein the number of the closed transmission channels is less than or equal to a preset number threshold.

4. The method according to claim 2 or 3, characterized in that After selecting a user equipment to be switched from the user equipments residing in the M adjusted second cells and before switching the user equipment to be switched to the L adjusted first cells, the method further includes: Resuming data transmission and reception of the L adjusted first cells; Eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

5. The method according to any one of claims 1 to 4, characterized in that Before adjusting the coverage areas of the L first cells and the coverage areas of the M second cells, the method further includes: The serving cell is split into the L first cells and the M second cells based on the first weight, wherein the serving cell is a cell using the first frequency point.

6. The method according to claim 5, characterized in that The adjusting the coverage areas of the L first cells and the coverage areas of the M second cells includes: Adjusting the coverage areas of the L first cells and the coverage areas of the M second cells based on a second weight; The adjusting the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells includes: The coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells are adjusted based on the first weight.

7. The method according to any one of claims 1 to 4, characterized in that The first adjustment condition is that the PRB utilization rate is less than a second preset threshold; The second adjustment condition is that the PRB utilization rate is greater than a third preset threshold.

8. A cell adjustment device, characterized in that: include: an adjustment module, configured to adjust, when a first adjustment condition is met, coverage areas of the L first cells and coverage areas of the M second cells, wherein the coverage areas of the L adjusted first cells overlap with the coverage areas of the M adjusted second cells, the L adjusted first cells and the M adjusted second cells use a first frequency point, L ≥ 1, M ≥ 1; a handover module, configured to adjust the adjusted L first cells to a cell barring state, and handover user equipment residing in the L adjusted first cells to the M adjusted second cells; A selection module, configured to select a user equipment to be switched from the user equipments residing in the M adjusted second cells when a second adjustment condition is met; The switching module is further configured to switch the user equipment to be switched to the L adjusted first cells; The adjustment module is also used to adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells, wherein the coverage area of the re-adjusted first cell does not overlap with the coverage area of the re-adjusted second cell, and the coverage area of each re-adjusted first cell does not overlap, and the coverage area of each re-adjusted second cell does not overlap.

9. The cell adjustment device according to claim 8, characterized in that: The cell adjustment device further includes a cancellation module and a shutdown module; The elimination module is configured to eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells after the adjustment module adjusts the coverage areas of the L first cells and the coverage areas of the M second cells and before the handover module adjusts the adjusted L first cells to a cell barred state and hands over user equipment residing in the L adjusted first cells to the M adjusted second cells; The shutdown module is configured to shut down the L adjusted first cells after the switching module adjusts the adjusted L first cells to a cell-barred state and switches user equipment residing in the L adjusted first cells to the M adjusted second cells.

10. The cell adjustment device according to claim 9, characterized in that: The shutdown module is further configured to shut down at least one transmission channel of the M adjusted second cells when the physical resource block (PRB) utilization rate is less than a first preset threshold, wherein the number of shut-down transmission channels is less than or equal to a preset number threshold.

11. The cell adjustment device according to claim 9 or 10, characterized in that: The cell adjustment device further includes a recovery module; The recovery module is configured to restore data transmission and reception of the L adjusted first cells after the selection module selects the user equipment to be switched from the user equipment residing in the M adjusted second cells and before the switching module switches the user equipment to be switched to the L adjusted first cells; The elimination module is further configured to eliminate co-channel interference between the L adjusted first cells and the M adjusted second cells.

12. The cell adjustment device according to any one of claims 8 to 11, characterized in that: The cell adjustment device further includes a splitting module; The splitting module is configured to split the serving cell into the L first cells and the M second cells based on a first weight before the adjustment module adjusts the coverage areas of the L first cells and the coverage areas of the M second cells, wherein the serving cell is a cell using the first frequency.

13. The cell adjustment device according to claim 12, characterized in that: The adjustment module is specifically configured to adjust the coverage areas of the L first cells and the coverage areas of the M second cells based on the second weight; The adjustment module is specifically configured to adjust the coverage areas of the L adjusted first cells and the coverage areas of the M adjusted second cells based on the first weight.

14. The cell adjustment device according to any one of claims 8 to 11, characterized in that: The first adjustment condition is that the PRB utilization rate is less than a second preset threshold; The second adjustment condition is that the PRB utilization rate is greater than a third preset threshold.

15. A network device, characterized in that: include: Processor, memory, input and output interfaces; The processor is coupled to the memory and the input / output interface; The processor executes the method according to any one of claims 1 to 7 by running the code in the memory.

16. A chip, characterized in that: The chip includes at least one processor, the at least one processor is communicatively connected to at least one memory, and the at least one memory stores instructions; the instructions are executed by the at least one processor according to any one of claims 1 to 7. 17 . A computer-readable storage medium storing instructions, which, when executed on a computer, cause the computer to execute the method according to claim 1 .

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