Signal interference control method, LTE system, physical layer device, storage medium

Abstract

The application provides a signal interference control method, an LTE system, a physical layer device and a storage medium. The signal interference control method comprises the following steps: determining target position information, wherein the target position information comprises a position allocation condition of a first RB in a transmission spectrum, and the first RB is a set of spectrum resources which are not used at a next moment; and sending the target position information to the physical layer device, so that the physical layer device determines a target CRS according to the target position information and reduces the transmission power of the target CRS, wherein the target CRS is a CRS corresponding to the first RB at the next moment. According to the technical scheme of the embodiment, the target CRS can be subjected to power reduction processing, the channel interference of the target CRS on a neighboring cell is reduced, the spectrum efficiency of the neighboring cell is improved, and the user experience of the communication system is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wireless communication, and particularly relates to a signal interference control method, an LTE system, a physical layer device and a storage medium. BACKGROUND

[0002] With the continuous development of the fifth generation communication (5G) technology, the number of 5G new radio (5G NR) terminals is increasing, but a large proportion of users still use the fourth generation communication (4G) long term evolution (LTE) terminal. In order to meet the communication needs of different systems, the dynamic spectrum sharing (DSS) technology can be used to deploy the LTE system and the NR system on the same spectrum, so that the two systems can use the same spectrum resource at the same time.

[0003] The LTE system will send the CRS in each transmission time interval (TTI), and the CRS is usually sent in the full bandwidth, which can easily cause interference to the channel of the NR system, resulting in a decrease in the spectral efficiency of the NR system. According to the relevant protocol, the channel of the NR system can perform resource element (RE) level rate matching for the CRS of the resource block (RB) of the cell, and then reduce the interference of the CRS through downgrading scheduling. However, the existing protocol does not indicate how to reduce the interference of the CRS from the neighbor cell, and the spectral efficiency and user experience of the NR system will still be affected. SUMMARY

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] The embodiments of the present application provide a signal interference control method, an LTE system, a physical layer device and a storage medium, which can perform power reduction processing on the CRS, reduce the channel interference of the CRS on the neighbor cell, and improve the spectral efficiency and user experience of the neighbor cell.

[0006] In a first aspect, the embodiments of the present application provide a signal interference control method applied to an LTE system, wherein the LTE system is in communication connection with a physical layer device, and the method comprises the following steps:

[0007] determining target position information, wherein the target position information comprises a position allocation condition of a first RB in a transmission spectrum, and the first RB is a set of spectrum resources which are not used at a next moment;

[0008] sending the target position information to the physical layer device, so that the physical layer device determines a target CRS according to the target position information and reduces transmitting power of the target CRS, wherein the target CRS is a CRS corresponding to the first RB at a next time point.

[0009] In a second aspect, an embodiment of the present application provides a signal interference control method, applied to a physical layer device, wherein the physical layer device is in communication connection with an LTE system, and the method comprises the following steps of:

[0010] obtaining target position information sent by the LTE system, wherein the target position information comprises position allocation of a first RB in a transmission spectrum, and the first RB is a set of spectrum resources which are not used at a next time point;

[0011] determining a target CRS according to the target position information and reducing transmitting power of the target CRS, wherein the target CRS is a CRS corresponding to the first RB at a next time point.

[0012] In a third aspect, an embodiment of the present application provides an LTE system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the signal interference control method according to the first aspect when executing the computer program.

[0013] In a fourth aspect, an embodiment of the present application provides a physical layer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the signal interference control method according to the second aspect when executing the computer program.

[0014] In a fifth aspect, an embodiment of the present application provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are used to execute the signal interference control method according to the first aspect or the signal interference control method according to the second aspect.

[0015] The embodiment of the present application comprises: determining target position information, wherein the target position information comprises a position allocation condition of a first RB in a transmission spectrum, the first RB being a set of spectrum resources which are not used at a next moment; and sending the target position information to the physical layer device, so that the physical layer device determines a target CRS according to the target position information and reduces the transmission power of the target CRS, wherein the target CRS is a CRS corresponding to the first RB at the next moment. According to the technical scheme of the embodiment, the target CRS can be subjected to power reduction processing, the channel interference of the target CRS on a neighbor cell is reduced, the spectrum efficiency of the neighbor cell is improved, and the user experience of the communication system is improved.

[0016] Additional features and advantages of the application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the description and claims. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the technical scheme of the application, and constitute a part of the specification, and are used together with the embodiments of the application to explain the technical scheme of the application, and do not constitute a limitation on the technical scheme of the application.

[0018] Figure 1 is a flowchart of a signal interference control method applied to an LTE system provided by an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a DSS cell provided by another embodiment of the present application;

[0020] Figure 3 is a flowchart of determining a first RB and a second RB provided by another embodiment of the present application;

[0021] Figure 4 is a flowchart of determining target position information provided by another embodiment of the present application;

[0022] Figure 5 is a flowchart of reducing the transmission power of a target CRS provided by another embodiment of the present application;

[0023] Figure 6 is a flowchart of restoring the transmission power of a target CRS provided by another embodiment of the present application;

[0024] Figure 7 is a flowchart of a signal interference control method applied to a physical layer device provided by another embodiment of the present application;

[0025] Figure 8is a flow chart of determining target power provided by another embodiment of the present application;

[0026] Figure 9 is a flow chart of recovering target CRS transmit power provided by another embodiment of the present application;

[0027] Figure 10 is a flow chart of an example provided by the present application;

[0028] Figure 11 is a device diagram of an LTE system provided by another embodiment of the present application;

[0029] Figure 12 is a device diagram of a physical layer device provided by another embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0031] It should be noted that although the functional modules are divided in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in a manner different from the module division in the device or the order in the flow chart. The terms "first", "second", etc. in the specification, claims or above-described drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0032] The present application provides a signal interference control method, an LTE system, a physical layer device and a storage medium. The signal interference control method comprises: determining target position information, wherein the target position information comprises a position allocation condition of a first RB in a transmission spectrum, and the first RB is a set of spectrum resources which are not used at a next moment; and sending the target position information to the physical layer device, so that the physical layer device determines a target CRS according to the target position information and reduces transmit power of the target CRS, wherein the target CRS is a CRS corresponding to the first RB at the next moment. According to the technical solution of the present embodiment, the target CRS can be subjected to power reduction processing, the channel interference of the target CRS on a neighbor cell is reduced, the spectrum efficiency of the neighbor cell is improved, and thus the user experience of the communication system is improved.

[0033] It should be noted that the LTE system of the present embodiment can be deployed in Figure 2The illustrated DSS cell, the LTE system and the NR system are deployed in the DSS cell D, or it is a network with LTE system and NR system in the same coverage, which shares the spectrum with the LTE system or the system in the same coverage can be a universal mobile telecommunications system (UMTS), a global system for mobile communications (GSM), or a 6th generation mobile communication system (6G), etc. The embodiment does not make too many limitations on the type of system co-deployed with the LTE system. The transmission channel of the co-deployed system will be interfered by the CRS signal of the LTE system, and the transmission performance will be affected under the interference. It can be understood that the transmission channel interfered by the CRS can be a physical downlink shared channel (PDSCH) of the NR system. The type of transmission channel is not limited in the embodiment.

[0034] The embodiments of the application will be further described below with reference to the accompanying drawings. Unless otherwise specified, the embodiments of the application are taken as an example of LTE system deployed in a DSS cell, and the DSS cell co-deploys an NR system. The transmission channel of the NR system interfered by the CRS is taken as an example of NR PDSCH. This is only for the convenience of describing the technical solution of the embodiment, and is not a limitation on the technical solution of the application.

[0035] As shown in Figure 1 Figure 1 is a flowchart of a signal interference control method provided by an embodiment of the application. The signal interference control method is applied to an LTE system, and the LTE system is in communication connection with a physical layer device. The signal interference control method includes but is not limited to steps S110 and S120.

[0036] Step S110, determining target position information, wherein the target position information includes the position allocation of the first RB in the transmission spectrum, and the first RB is a set of spectrum resources not used at the next moment.

[0037] It should be noted that for two adjacent cells, the CRS of the respective LTE system will be transmitted in the full bandwidth. Therefore, the CRS of the cell will not only cause interference to the NR PDSCH of the cell, but also cause interference to the NR PDSCH of the adjacent cell, for example in Figure 2 ​In the shown example, the DSS-A cell and the DSS-B cell are two adjacent cells, and when the NR system of the DSS-B cell transmits signals in the allocated RB, the CRS signals of the DSS-A cell are transmitted in the full bandwidth, thereby causing interference to the NR PDSCH of the DSS-B cell, resulting in a decrease in the spectral efficiency of the NR system of the DSS-B cell. In this case, the embodiment reduces the interference of the CRS of the cell to the NR PDSCH of the adjacent cell by reducing the transmission power of the CRS.

[0038] It is worth noting that the LTE system does not maintain full scheduling at all times, such as Figure 2 In the DSS cell shown in FIG. 1, both the DSS-A cell and the DSS-B cell have a part of the RBs scheduled by the LTE system. If the power of the CRS in the allocated RB is reduced, the performance of the channel estimation and access of the LTE terminal side of the cell will be reduced. Therefore, the embodiment can determine the set of spectrum resources that are not used at the next time as the first RB through the scheduling module of the LTE system, and only reduce the power of the CRS in the first RB, thereby reducing the interference of the CRS to the NRPDSCH of the adjacent cell in the spectrum position corresponding to the first RB, improving the efficiency of the scheduling spectrum of the NR system of the adjacent cell, and avoiding adverse effects on the channel estimation and access of the LTE terminal side of the cell.

[0039] It should be noted that the target position information can be in any form, such as a set of positions of the first RB, or common bitmap information, etc. Those skilled in the art can select the specific form of the target position information according to the actual needs, and the physical layer device can identify the position of the first RB.

[0040] It is worth noting that after the DSS cell is successfully established and the NR system and the LTE system start to operate normally, the RE level rate matching and order reduction scheduling can be performed on the LTE CRS position through the NR system of the cell according to the related protocol, so as to reduce the interference of the CRS of the cell to the NRPDSCH of the cell. The specific process is a known technology to those skilled in the art, and will not be repeated here.

[0041] In step S120, the target position information is sent to the physical layer device, so that the physical layer device determines the target CRS according to the target position information and reduces the transmission power of the target CRS, wherein the target CRS is the CRS corresponding to the first RB at the next time.

[0042] It should be noted that the power adjustment of CRS is usually completed by physical layer equipment. Therefore, after the first RB is determined, the target location information including the location of the first RB is determined so that the physical layer equipment can determine the location of the first RB through the target location information and determine the CRS corresponding to the location of the first RB as the target CRS. Power reduction processing is performed on the target CRS at the next time to reduce the interference of the cell's CRS to the NR PDSCH of neighboring cells at the next time.

[0043] It should be noted that in this embodiment, the first RB is an RB that will not be used in the next moment, and the target CRS is the CRS corresponding to the position of the first RB in the next moment. Power reduction processing is performed before the CRS is transmitted in the next moment to achieve prediction and response to CRS interference. It is understood that during the operation of the LTE system, the technical solution of this embodiment can be executed once at every moment, or it can be executed periodically, depending on the actual needs.

[0044] It should be noted that the physical layer device can configure the transmit power of the CRS. In this embodiment, after reducing the transmit power of the target CRS, the corresponding power configuration parameters can be sent to the LTE system through resource mapping or Inverse Fast Fourier Transform (IFFT) and then through the Remote Radio Unit (RRU). This allows the LTE system to reduce the transmit power of the target CRS by applying the power configuration parameters. The information interaction process between the physical layer device and the LTE system is a technology well known to those skilled in the art and will not be described in detail here.

[0045] It is worth noting that this embodiment reduces the transmission power of the target CRS, enabling the target CRS to propagate to neighboring cells at a lower power, thereby reducing interference to the NR PDSCH of neighboring cells. During the execution process, there is no need to adjust the system configuration or CRS configuration of neighboring cells, which effectively simplifies the complexity of system configuration. There is also no need to configure additional resources for CRS in this cell to reduce interference, which effectively avoids the reduction of the number of symbols available for NR due to additional RE resource consumption.

[0046] Additionally, in one embodiment, reference is made to Figure 3 In execution Figure 1 Before step S110 in the illustrated embodiment, the following steps may also be included, but are not limited to:

[0047] Step S310: Determine the target resource size based on the resource requirements of the LTE system at the next time step;

[0048] In step S320, a second RB is determined in the transmission spectrum according to the target resource size, wherein the second RB is a set of spectrum resources used at the next moment;

[0049] In step S330, a set of spectrum resources not belonging to the second RB is determined as the first RB.

[0050] It is worth noting that, in order to determine the first RB, the second RB used at the next moment can be determined first, and then a set of resources other than the second RB is determined as the first RB. The resources used at the next moment can be generally determined according to resource requirements, which can be determined according to a buffer status report (BSR). After the baseband module of the LTE system obtains the BSR at the next moment, the size of the BSR is estimated to determine the target resource size, and then the second RB used at the next moment is determined from the resources available at the next moment according to the target resource size.

[0051] It should be noted that, since the second RB can be determined by the BSR, the set of resources other than the second RB can be directly determined as the first RB, thereby improving the efficiency of determining the first RB. It can be understood that the first RB can be a RB with continuous positions in the transmission spectrum, or a set of RBs separated by positions. The embodiment does not make too many limitations on the position continuity of the first RB.

[0052] In addition, in an embodiment, referring to step S110 of the embodiment shown in Figure 4 , Figure 1 The steps include but are not limited to the following steps:

[0053] In step S410, the position information of the first RB in the transmission spectrum is determined as the target position information.

[0054] Alternatively,

[0055] In step S420, a target RB bitmap of the next moment of the transmission spectrum is generated, and the target RB bitmap is determined as the target position information, wherein the target RB bitmap records the position allocation of the first RB and the second RB in the transmission spectrum.

[0056] It should be noted that, after the position of the first RB is determined according to the second RB, a set of position information of the first RB in the transmission spectrum can be obtained as the target position information, and the physical layer device can determine the target CRS as the target CRS corresponding to the target position information. The specific description of the position information can be determined according to actual requirements.

[0057] In addition, the target position information can also be a bitmap of the transmission spectrum. For example, taking a 20M bandwidth as an example, the target RB bitmap can be a bitmap composed of 100 bits of 0 and 1, wherein 1 represents the second RB and 0 represents the first RB, as shown in Figure 2 The target RB bitmap can be 111111000···00 (totally 100 bits). After obtaining the target RB bitmap, the physical layer device can determine the position allocation of the first RB and the second RB according to the distribution of 0 and 1, thereby providing a data basis for subsequent calculation of the power parameter.

[0058] In addition, in an embodiment, the step S120 of the embodiment shown in Figure 5 , Figure 1 may include but is not limited to the following steps:

[0059] S510, reporting the target position information to the physical layer device, so that the physical layer device determines the target resource position corresponding to the first RB according to the target position information, and determines the CRS corresponding to the target resource position as the target CRS;

[0060] S520, obtaining the target power of each target RE fed back by the physical layer device, the target RE being the RE corresponding to the target CRS, the target power being determined by the physical layer device according to a preset adjustment coefficient and the reference power of each target RE, the number of target REs being at least one, and the preset adjustment coefficient being a positive number less than or equal to 1;

[0061] S530, determining the target power as the transmission power of the corresponding target RE at the next moment.

[0062] It should be noted that, in order to reduce the power of the target CRS, the power of the target RE can be reduced. After the physical layer device determines the target CRS according to the target position information, each RE corresponding to the target CRS is determined as a target RE. Since the reference power of the target RE is configured by a high layer, a preset adjustment coefficient can be set in the physical layer device, for example, a suppression factor less than 1 is set, and the product of the suppression factor and the reference power is taken as the target power, so as to realize the power suppression of the RE, and the target power of the target RE is configured to the LTE system, so as to reduce the transmission power of the target CRS

[0063] It should be noted that the power suppression of the RE can be achieved by the physical layer device re-planning the transmission power of all REs. Taking the target RB bitmap as an example, after the physical layer device receives the target RB bitmap, the reference power pre-configured is obtained. Each bit in the target RB bitmap can correspond to an RE. Therefore, the transmission power of the RE corresponding to the value 1 in the target RB bitmap is the reference power E RS, and the transmission power of the RE corresponding to the value 0 is E RS x a, where a is a pre-set adjustment coefficient, and a e (0, 1], the smaller the value of a, the smaller the CRS power on the corresponding RE. The specific value can be adjusted according to actual needs.

[0064] It should be noted that after the power of the RE is re-planned, the LTE system can be mapped and IFFT transformed according to the existing protocol, and transmitted from the RRU, so that the LTE system can apply the target power of each target RE to suppress the target CRS in the next moment.

[0065] In addition, in an embodiment, after obtaining the target power of each target RE fed back by the physical layer device, the reference power of each target RE fed back by the physical layer device is also obtained; referring to Figure 6 After the step S530 of the embodiment shown is executed, the following steps are also included but are not limited to: Figure 5 The steps after the step S530 of the embodiment shown are also included but are not limited to:

[0066] Step S610: When the transmission duration of the target CRS meets the pre-set period, the transmission power of each target RE is restored to the corresponding reference power;

[0067] Or,

[0068] Step S620: The transmission power of the target RE meeting the pre-set condition is restored to the corresponding reference power.

[0069] It should be noted that the power reduction of the target CRS can effectively reduce the interference to the NR PDSCH of the neighboring cell, but for the cell, after reducing the CRS, the NR will cause interference to the LTE CRS, and has a certain influence on the channel estimation and access of the LTE terminal side. In order to reduce the influence, the power of the target CRS needs to be periodically restored.

[0070] It should be noted that the pre-set period can be a pre-set time length. After transmitting the target CRS in the next moment, the timer is counted. When the counting time length reaches the pre-set period, the transmission power of the target CRS is stopped, and the transmission power of the target RE is restored to the reference power. The specific pre-set period length can be set according to actual needs. Of course, after the transmission power of the target RE is restored to the reference power, the steps S510-S530 can be re-executed in the next moment. Figure 1The steps of the embodiment shown can also be performed again after a period of time to reduce interference with the adjacent NR PDSCH Figure 1 The steps of the embodiment shown are not limited here.

[0071] It should be noted that, in addition to setting a preset period for timing, a preset condition can also be set to restore the transmission power of the target RE, thereby providing sufficient resources for the LTE terminal side, for example, the preset condition can be that the third RB in the first RB is a subset of the first RB, and the power of the target RE is restored at the CRS position corresponding to the third RB; for another example, the preset condition can also be a subframe of the LTE system, and the power of the target RE is restored on the fixed subframe, and the interference of the Multicast Broadcast Single Frequency Network (MBSFN) subframe NR to the LTE CRS is further configured.

[0072] In addition, another embodiment of the present application also provides a signal interference control method applied to a physical layer device, the physical layer device being in communication connection with an LTE system, referring to Figure 7 , the signal interference control method includes but is not limited to the following steps:

[0073] Step S710, target position information sent by the LTE system is acquired, wherein the target position information includes the position allocation of the first RB in the transmission spectrum, and the first RB is a set of spectrum resources that are not used at the next moment;

[0074] Step S720, the target CRS is determined according to the target position information, and the transmission power of the target CRS is reduced, wherein the target CRS is the CRS corresponding to the first RB at the next moment.

[0075] It should be noted that the technical solution of the present embodiment is similar to the embodiment shown in Figure 1 The difference is that the execution subject of the present embodiment is a physical layer device, the physical layer device determines the position of the first RB according to the target position information reported by the LTE system, and performs power reduction processing on the target CRS transmitted at the next moment at the corresponding position, thereby reducing the interference with the adjacent channel, and the specific technical principles and effects can be referred to the description of the embodiment shown in Figure 1 For the sake of simplicity, the description is not repeated here.

[0076] In addition, in an embodiment, the target position information at least includes one of the following:

[0077] The position information of the first RB in the transmission spectrum;

[0078] a target RB bitmap of a next time of the transmission spectrum, wherein the target RB bitmap records a position allocation of the first RB and the second RB in the transmission spectrum, and the second RB is a set of spectrum resources used in the next time.

[0079] It should be noted that the technical solution of the embodiment is similar to the embodiment shown in Figure 3 and Figure 4 The difference is that the execution subject of the embodiment is a physical layer device. After the physical layer device obtains the target position information, the position of the first RB is determined according to the specific form of the target position information, and data basis is provided for the power reduction processing of the target CRS. The specific technical principles and effects can be referred to the description of the embodiment shown in Figure 3 and Figure 4 For the sake of brevity, the description is not repeated here.

[0080] In addition, in an embodiment, referring to step S720 of the embodiment shown in Figure 8 , Figure 7 The following steps are included but not limited to:

[0081] Step S810, determining a target resource position corresponding to the first RB according to the target position information, and determining a target CRS corresponding to the target resource position as the target CRS;

[0082] Step S820, determining a target RE corresponding to the target CRS, wherein the number of the target RE is at least one;

[0083] Step S830, determining a target power of each target RE according to a preset adjustment coefficient and a reference power of each target RE, wherein the preset adjustment coefficient is a positive number less than or equal to 1;

[0084] Step S840, feeding back the target power of each target RE to the LTE system, so that the LTE system determines the target power as the transmission power of the corresponding target RE in the next time.

[0085] It should be noted that the technical solution of the embodiment is similar to the embodiment shown in Figure 5 The difference is that the execution subject of the embodiment is a physical layer device. After the physical layer device obtains the target position information, the transmission power of the target RE is recalculated according to the preset adjustment coefficient and the reference power set by the higher layer, and is sent to the LTE system through resource mapping or IFFT transformation for application, so as to realize the power suppression of the target RE. The specific technical principles and effects can be referred to the description of the embodiment shown in Figure 5 For the sake of brevity, the description is not repeated here.

[0086] In addition, in an embodiment, referring to Figure 9After execution Figure 8 Following step S840 in the illustrated embodiment, the following steps are included, but are not limited to:

[0087] Step S910: The reference power corresponding to each target RE is sent to the LTE system so that after the transmission duration of the target CRS meets the preset period, the LTE system restores the transmission power of each target RE to the corresponding reference power, or restores the transmission power of the target RE that meets the preset conditions to the corresponding reference power.

[0088] It should be noted that the technical solution of this embodiment is different from... Figure 6 The embodiments shown are similar, the difference being that the execution entity in this embodiment is a physical layer device. The physical layer device simultaneously transmits the reference power and the target power to the LTE system, enabling the LTE system to recover the transmit power of the target RE, thereby reducing the impact of the CRS signal on signal estimation and access at the LTE terminal side. For specific technical principles and effects, please refer to... Figure 6 The descriptions corresponding to the embodiments shown are not repeated here for the sake of simplicity.

[0089] In addition, to better illustrate the technical solution of this embodiment, the following is combined with Figure 2 The DSS cell shown provides a specific example. In this example, the NR and LTE systems share the transmission spectrum in the DSS cell. Resource requirements are exemplified by BSR, and the power recovery of the target RE is exemplified by timing the CRS timer for a preset period. Figure 10 This example includes, but is not limited to, the following steps:

[0090] Step S1010: The DSS cell is successfully established. The DSS NR performs RE-level rate matching at the corresponding LTE CRS location to reduce CRS interference from LTE cells under this DSS.

[0091] In step S1020, the baseband module of the LTE system estimates the required RB scale based on the BSR size at the next time moment, determines the RB locations to be allocated and used, and then determines the set of unused RB locations or bitmap information based on the allocated RB locations.

[0092] Step S1030: When the CRS timer finishes counting, proceed to step S1020; otherwise, proceed to step S1040.

[0093] In step S1040, the physical layer device determines the target CRS based on the set of unused RB locations or bitmap information, and recalculates the transmit power of the RE corresponding to the target CRS based on the preset reference power and power suppression factor.

[0094] In step S1050, the recalculated transmit power of the RE is applied to the LTE system to complete the power reduction processing of the target CRS.

[0095] Additionally, refer to Figure 11 An embodiment of the present invention also provides an LTE system 1100, which includes: a memory 1110, a processor 1120, and a computer program stored in the memory 1110 and executable on the processor 1120.

[0096] The processor 1120 and the memory 1110 can be connected via a bus or other means.

[0097] The non-transient software program and instructions required to implement the signal interference control method of the above embodiments are stored in the memory 1110. When executed by the processor 1120, the signal interference control method of the above embodiments is executed, for example, the method described above is executed. Figure 1 Method steps S110 to S120 Figure 3 Method steps S310 to S330, Figure 4 Method steps S410 to S420 Figure 5 Method steps S510 to S530, Figure 6 Method steps S610 to S620.

[0098] Additionally, refer to Figure 12 An embodiment of the present invention also provides a physical layer device 1200, which includes a memory 1210, a processor 1220, and a computer program stored on the memory 1210 and executable on the processor 1220.

[0099] The processor 1220 and the memory 1210 can be connected via a bus or other means.

[0100] The non-transient software program and instructions required to implement the signal interference control method of the above embodiments are stored in the memory 1210. When executed by the processor 1220, the signal interference control method of the above embodiments is executed, for example, the above-described method is executed. Figure 7 Method steps S710 to S720 Figure 8 Method steps S810 to S840, Figure 9 Method step S910.

[0101] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; 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.

[0102] Furthermore, one embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or controller, for example, by a processor in the above-described LTE system embodiment, causing the processor to perform the signal interference control method described above, for example, performing the above-described... Figure 1 Method steps S110 to S120 Figure 3 Method steps S310 to S330, Figure 4 Method steps S410 to S420 Figure 5 Method steps S510 to S530, Figure 6 Method steps S610 to S620, for example, can be executed by a processor in the physical layer device described above, causing the processor to execute the signal interference control method in the above embodiments, for example, executing the method described above. Figure 7 Method steps S710 to S720 Figure 8 Method steps S810 to S840, Figure 9The method steps S910 in the above disclosed method can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be resident on a computer readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). The term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, it should be appreciated by those skilled in the art that computer readable media generally include computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

[0103] The above is a specific description of the preferred embodiments of the present application, but the present application is not limited to the above described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are included in the scope defined by the claims of the present application.

Claims

1. A signal interference control method applied to a long term evolution (LTE) system, the LTE system being in communication connection with a physical layer device, the method comprising: determining target position information, wherein the target position information comprises a position allocation of first resource blocks (RBs) in a transmission spectrum, the first RBs being a set of spectrum resources that are not to be used at a next time point; reporting the target position information to the physical layer device, so that the physical layer device determines a target resource position corresponding to the first RBs according to the target position information, and determines a target common reference signal (CRS) corresponding to the target resource position, the target CRS being a CRS corresponding to the first RBs at the next time point; obtaining a target power of each target resource element (RE) fed back by the physical layer device, the target REs being REs corresponding to the target CRS, the target power being determined by the physical layer device according to a preset adjustment coefficient and a reference power of each target RE, the number of the target REs being at least one, the preset adjustment coefficient being a positive number less than or equal to 1; and determining the target power as a transmission power of the corresponding target REs at the next time point. Before the determining of the target position information, the method further comprises: determining a target resource size according to a resource requirement of the LTE system at the next time point; determining second RBs in the transmission spectrum according to the target resource size, wherein the second RBs are a set of spectrum resources that are to be used at the next time point; and determining a set of spectrum resources that do not belong to the second RBs as the first RBs. The determining of the target position information comprises: determining position information of the first RBs in the transmission spectrum as the target position information; or generating a target RB bitmap of the next time point of the transmission spectrum, and determining the target RB bitmap as the target position information, wherein the target RB bitmap records position allocation of the first RBs and the second RBs in the transmission spectrum. After the obtaining of the target power of each target RE fed back by the physical layer device, the method further comprises obtaining the reference power of each target RE fed back by the physical layer device. After the determining of the target power as the transmission power of the corresponding target REs at the next time point, the method further comprises: when a transmission duration of the target CRS satisfies a preset period, restoring the transmission power of each target RE to the corresponding reference power; or restoring the transmission power of the target REs satisfying a preset condition to the corresponding reference power.

2. The method of claim 1, wherein, 5.A signal interference control method applied to a physical layer device, the physical layer device being in communication connection with an LTE system, the method comprising: obtaining target position information sent by the LTE system, wherein the target position information comprises a position allocation of first RBs in a transmission spectrum, the first RBs being a set of spectrum resources that are not to be used at a next time point; ​ ​ ​ 3. The method of claim 2, wherein, ​ ​ ​ ​ 4. The method of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ determining a target resource position corresponding to the first RB according to the target position information, and determining a target CRS corresponding to the target resource position as the target CRS, wherein the target CRS is a CRS corresponding to the first RB at a next moment; determining a target RE corresponding to the target CRS, wherein a quantity of the target RE is at least one; determining a target power of each target RE according to a preset adjustment coefficient and a reference power of each target RE, wherein the preset adjustment coefficient is a positive number less than or equal to 1; feeding back the target power of each target RE to the LTE system, so that the LTE system determines the target power as a transmission power of the corresponding target RE at a next moment.

6. The method of claim 5, wherein, The target position information at least includes one of: position information of the first RB in the transmission spectrum; a target RB bitmap of the transmission spectrum at a next moment, wherein the target RB bitmap records allocation of the first RB and a second RB in the transmission spectrum, and the second RB is a set of spectrum resources used at the next moment.

7. The method of claim 5, wherein, After the feeding back of the target power of each target RE to the LTE system, the method further includes: sending the reference power corresponding to each target RE to the LTE system, so that the LTE system restores the transmission power of each target RE to the corresponding reference power after a transmission duration of the target CRS satisfies a preset period, or restores the transmission power of the target RE satisfying a preset condition to the corresponding reference power.

8. An LTE system comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the signal interference control method according to any one of claims 1 to 4 when executing the computer program.

9. A physical layer device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the signal interference control method according to any one of claims 5 to 7 when executing the computer program.

10. A computer-readable storage medium storing computer-executable instructions, the computer-executable instructions comprising: The computer executable instructions are used to execute the signal interference control method according to any one of claims 1 to 7.

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