Uplink power control method and apparatus

Abstract

This invention relates to the field of communications, and more particularly to an uplink power control method and apparatus. The method includes: acquiring time-frequency resource information for uplink transmission between a primary cell and neighboring cells; determining, based on the time-frequency resource information, the co-channel interference coefficient, the level interference coefficient, and the number of colliding resource blocks from the primary cell to the neighboring cells; determining, based on the co-channel interference coefficient, the level interference coefficient, and the number of colliding resource blocks, the interference value from the primary cell to the neighboring cells; and adjusting the uplink power control parameters of the primary cell based on the interference value. The uplink power control method and apparatus provided by this invention can control uplink power while comprehensively considering the communication quality of the primary cell and the degree of interference to neighboring cells.

Description

[Technical Field]

[0001] This invention relates to the field of communications, and more particularly to an uplink power control method and device. [Background Technology]

[0002] In the field of telecommunications, the transmit power of terminals such as mobile phones is lower than that of base stations, which can easily affect the user's communication quality due to insufficient uplink capability. To ensure the user's communication quality, it is necessary to increase the uplink power, that is, to increase the transmit power of the terminal. However, increasing the uplink power, especially the uplink power of terminals located at the cell edge, will increase the uplink noise floor of neighboring cells, thereby causing greater uplink interference to neighboring cells, ultimately creating a snowball effect and raising the overall interference level of a certain area. How to adjust the uplink power to both ensure the communication quality of the main cell and minimize interference to neighboring cells is a problem that needs to be solved. [Summary of the Invention]

[0003] In view of this, embodiments of the present invention provide an uplink power control method and device that can control uplink power while comprehensively considering the communication quality of the primary cell and the degree of interference to neighboring cells.

[0004] In a first aspect, embodiments of the present invention provide an uplink power control method, characterized in that it includes:

[0005] Obtain time and frequency resource information for uplink transmission between the primary cell and neighboring cells;

[0006] Based on the time-frequency resource information, determine the co-frequency interference coefficient, level interference coefficient, and number of collision resource blocks of the primary cell to the neighboring cells;

[0007] The interference value of the primary cell to the neighboring cell is determined based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks.

[0008] Adjust the uplink power control parameters of the main cell based on the interference value.

[0009] One possible implementation involves obtaining the time-frequency resource information for uplink transmission between the primary cell and neighboring cells, including:

[0010] Obtain the interference type of the primary cell to the neighboring cell, the uplink power spectral density of the primary cell and the neighboring cell, and the number of resource blocks occupied by the primary cell and the neighboring cell respectively;

[0011] Based on the aforementioned time-frequency resource information, the co-channel interference coefficient, level interference coefficient, and number of colliding resource blocks of the primary cell to neighboring cells are determined, including:

[0012] The co-channel interference coefficient is determined based on the type of interference from the primary cell to the neighboring cell, wherein different interference types correspond to different co-channel interference coefficient values;

[0013] Calculate the difference in uplink power spectral density between the primary cell and the neighboring cell, and determine the level interference coefficient based on the difference;

[0014] Based on the number of resource blocks occupied by the primary cell and the neighboring cell respectively, the number of resource blocks shared by the primary cell and the neighboring cell is determined, and the number of resource blocks shared by the primary cell and the neighboring cell is used to determine the number of collision resource blocks.

[0015] One possible implementation involves obtaining time-frequency resource information from multiple neighboring cells;

[0016] Based on the time-frequency resource information of the multiple neighboring cells, the co-frequency interference coefficient, the level interference coefficient, and the number of collision resource blocks of the main cell to each neighboring cell are determined respectively.

[0017] In one possible implementation, determining the interference value of the primary cell to the neighboring cell based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks includes:

[0018] The interference value is obtained by calculating the product of the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks for each neighboring cell, and summing the products of each neighboring cell.

[0019] In one possible implementation, adjusting the uplink power control parameters of the primary cell based on the interference value includes:

[0020] If the interference value is less than the first threshold, then the uplink power control parameter of the main cell is increased;

[0021] If the interference value is greater than or equal to the first threshold and less than or equal to the second threshold, the uplink power control parameters of the main cell are kept unchanged.

[0022] If the interference value is greater than the second threshold, then the uplink power control parameter of the main cell is reduced.

[0023] In one possible implementation, the uplink power control parameters include the desired physical uplink shared channel power P. 0_PUSCH and road loss compensation factor α;

[0024] Increasing the uplink power control parameters of the primary cell includes:

[0025] Based on the number of resource blocks required by the terminal and the path loss parameters, the expected physical uplink shared channel power is increased by the first step and the path loss compensation factor is increased by the second step; wherein, the increased expected physical uplink shared channel power is less than or equal to the first upper threshold and the increased path loss compensation factor is less than or equal to the second upper threshold.

[0026] The increased uplink power control parameters are sent to the terminal so that the terminal increases the uplink power according to the increased uplink power control parameters.

[0027] One possible implementation involves reducing the uplink power control parameters of the primary cell, including:

[0028] The expected physical uplink shared channel power is reduced by the first step, and the path loss compensation factor is reduced by the second step; wherein the reduced expected physical uplink shared channel power is greater than or equal to the first lower threshold, and the reduced path loss compensation factor is greater than or equal to the second lower threshold;

[0029] The reduced uplink power control parameters are sent to the terminal so that the terminal can reduce the uplink power according to the reduced uplink power control parameters.

[0030] In a second aspect, an uplink power control device according to an embodiment of the present invention is characterized by comprising:

[0031] The acquisition module is used to acquire time and frequency resource information for uplink transmission between the primary cell and neighboring cells;

[0032] The determination module is used to determine the co-channel interference coefficient, level interference coefficient, and number of collision resource blocks of the primary cell to the neighboring cell based on the time-frequency resource information; and to determine the interference value of the primary cell to the neighboring cell based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks.

[0033] The adjustment module is used to adjust the uplink power control parameters of the main cell based on the interference value.

[0034] Thirdly, embodiments of the present invention provide an electronic device, comprising:

[0035] At least one processor; and

[0036] At least one memory communicatively connected to the processor, wherein:

[0037] The memory stores program instructions that can be executed by the processor, and the processor can execute the method provided in the first aspect by calling the program instructions.

[0038] Fourthly, embodiments of the present invention provide a computer-readable storage medium comprising a stored program, wherein the program, when executed, controls the device containing the computer-readable storage medium to perform the method described in the first aspect.

[0039] It should be understood that the second to fourth aspects of the embodiments of the present invention are consistent with the technical solutions of the first aspect of the embodiments of the present invention, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be described again.

[0040] The uplink power control method and device provided in this embodiment of the invention can control the uplink power while comprehensively considering the communication quality of the main cell and the degree of interference to neighboring cells. [Attached Image Description]

[0041] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A schematic diagram of a communication scenario provided in an embodiment of the present invention;

[0043] Figure 2 A flowchart of an uplink power control method provided in an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of an uplink power control device provided in an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of another uplink power control device provided in an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

Detailed Implementation Methods

[0047] To better understand the technical solution of the present invention, the embodiments of this specification will be described in detail below with reference to the accompanying drawings.

[0048] It should be understood that the described embodiments are merely some, not all, of the embodiments in this specification. All other embodiments obtained by those skilled in the art based on the embodiments in this specification without inventive effort are within the scope of protection of this specification.

[0049] The terminology used in the embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in the embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0050] like Figure 1 As shown, in a communication scenario, the cell where the base station communicating with the terminal is located can be designated as the primary cell, and other cells surrounding the primary cell can be designated as neighboring cells. Insufficient uplink power from the terminal will affect the user's communication quality; excessive uplink power, especially from terminals located at the edge of the primary cell, can easily cause interference to neighboring cells. To address this issue, this invention provides an uplink power control method and device that can control uplink power while comprehensively considering the communication quality of the primary cell and the degree of interference to neighboring cells.

[0051] Figure 2 This is a flowchart illustrating an uplink power control method provided in an embodiment of the present invention. Figure 2 As shown, the above uplink power control method, when applied to a primary cell base station, may include:

[0052] Step 101: Obtain the time and frequency resource information for uplink transmission between the main cell and neighboring cells.

[0053] Specifically, the time-frequency resource information obtained in this step may include the type of interference from the primary cell to neighboring cells, the uplink power spectral density of the primary cell and neighboring cells, and the number of resource blocks occupied by the primary cell and neighboring cells respectively. Among them, the interference type may include inter-frequency interference, co-frequency interference without modulo-3 interference, and co-frequency interference with modulo-3 interference.

[0054] After obtaining the time and frequency resource information, continue to step 102.

[0055] Step 102: Based on the time-frequency resource information, determine the co-channel interference coefficient, level interference coefficient, and number of collision resource blocks of the main cell to the neighboring cells.

[0056] The method for determining the co-channel interference coefficient is as follows:

[0057] If the interference type experienced by a neighboring cell is inter-frequency interference, then the co-frequency interference coefficient of that neighboring cell is a first preset value; if the interference type is co-frequency but there is no modulo-3 interference, then the co-frequency interference coefficient of that neighboring cell is a second preset value; if the interference type is co-frequency and there is modulo-3 interference, then the co-frequency interference coefficient of that neighboring cell is a third preset value. The second preset value is greater than the first preset value and less than the third preset value. For example, the first preset value can be set to 0, the second preset value to 1, and the third preset value to 2.

[0058] The method for determining the level interference coefficient is as follows:

[0059] When the uplink power spectral density difference between the primary cell and neighboring cells is large, the terminal is generally located in the central area of ​​the primary cell and far from the neighboring cells. In this case, it generally will not cause interference to the neighboring cells, and the level interference coefficient can be set to the fourth set value. It should be noted that a difference of more than 9 dB between the uplink power spectral density of the primary cell and neighboring cells can be considered large.

[0060] When the difference in uplink power spectral density between the primary cell and neighboring cells is small, the terminal is generally located in the edge area of ​​the primary cell, close to the neighboring cells, and is prone to causing interference to the neighboring cells. In this case, the level interference coefficient can be set to the fifth setting value. It should be noted that when the difference in uplink power spectral density between the primary cell and neighboring cells is less than 3dB, this difference can generally be considered small.

[0061] When the difference in uplink power spectral density between the primary cell and the neighboring cell falls between the two scenarios mentioned above (generally, a difference between 4dB and 8dB is considered to be between these two scenarios), the terminal is generally still within the coverage area of ​​the primary cell, and its location is between the central and edge areas of the primary cell. Therefore, the level interference coefficient can be set to the sixth setting value at this time. The sixth setting value is greater than the fourth setting value and less than the fifth setting value. For example, the fourth setting value can be set to 0, the fifth setting value to 2, and the sixth setting value to 1.

[0062] The method for determining the number of collision resource blocks is as follows:

[0063] Resource blocks shared by the primary cell and neighboring cells are used as collision resource blocks, and the number of collision resource blocks is counted. For example, if the primary cell occupies 72 resource blocks (0-71) and the neighboring cell occupies 80 resource blocks (5-84), the number of collision resource blocks is 67 (5-71).

[0064] If time-frequency resource information of multiple neighboring cells is obtained in step 101, in this step, it is necessary to determine the co-frequency interference coefficient, level interference coefficient and number of collision resource blocks of the main cell to each neighboring cell based on the time-frequency resource information of each neighboring cell.

[0065] After determining the co-frequency interference coefficient, level interference coefficient, and number of collision resource blocks, continue to step 103.

[0066] Step 103: Determine the interference value of the main cell to the neighboring cell based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks.

[0067] Specifically, the interference value can be calculated using the following formula:

[0068]

[0069] Where I represents the interference value, T i D represents the co-channel interference coefficient of the i-th neighboring cell. i RB represents the signal level interference coefficient of the i-th neighboring cell. i represents the number of collision resource blocks of the i-th neighboring cell; n represents the total number of neighboring cells. After obtaining the interference value, continue to step 104.

[0070] Step 104: Adjust the uplink power control parameters of the main cell according to the interference value.

[0071] Specifically, the uplink power can be adjusted by changing the magnitude of the uplink power control parameters. These parameters include the desired physical uplink shared channel power and the path loss compensation factor.

[0072] If the interference value is less than the first threshold, the expected physical uplink shared channel power can be increased by a first step and the path loss compensation factor by a second step, based on the number of resource blocks required by the terminal and the path loss parameters. The primary cell base station can obtain the number of resource blocks required by the terminal and the path loss parameters through communication with the terminal. The increased expected physical uplink shared channel power is less than or equal to the first upper threshold, and the increased path loss compensation factor is less than or equal to the second upper threshold.

[0073] If the interference value is greater than or equal to the first threshold and less than or equal to the second threshold, the uplink power control parameters of the main cell remain unchanged.

[0074] If the interference value is greater than the second threshold, the expected physical uplink shared channel power needs to be reduced by the first step size, and the path loss compensation factor needs to be reduced by the second step size. The reduced expected physical uplink shared channel power is greater than or equal to the first lower threshold, and the reduced path loss compensation factor is greater than or equal to the second lower threshold.

[0075] It should be noted that, in the embodiments of the present invention, the first step length corresponding to the expected physical uplink shared channel power and the second step length corresponding to the path loss compensation factor are respectively set.

[0076] For example, the first step size can be set to 3 dB, and the second step size to 0.1. When increasing the expected physical uplink shared channel power, add 3 dB to the original expected physical uplink shared channel power value each time; when increasing the path loss compensation factor, add 0.1 to the original path loss compensation factor value each time; the increased expected physical uplink shared channel power and path loss compensation factor cannot exceed the corresponding upper threshold. Similarly, when decreasing the expected physical uplink shared channel power, subtract 3 dB from the original expected physical uplink shared channel power value each time; when decreasing the path loss compensation factor, subtract 0.1 from the original path loss compensation factor value each time; the decreased expected physical uplink shared channel power and path loss compensation factor cannot be lower than the corresponding lower threshold.

[0077] After obtaining the new uplink power control parameter values, the new uplink power control parameters can be sent to the terminal so that the terminal can adjust the uplink power according to the new power control parameters.

[0078] Specifically, the terminal can adjust the uplink power using the following formula:

[0079]

[0080] Specifically, the terminal sets the transmit power of its Physical Uplink Shared Channel (PUSCH) once in each subframe. Among them, P... PUSCH (i) represents the transmit power of PUSCH, P CMAX M represents the terminal's maximum transmit power. PUSCH (i) represents the number of resource blocks occupied by PUSCH, P 0_PUSCH (j) represents the expected physical uplink shared channel power (i.e., the PUSCH power that the primary cell base station hopes to receive), α represents the path loss compensation factor, PL is the downlink path loss measured by the terminal physical layer, and Δ TF (i) represents the Modulation and Coding Scheme (MCS) compensation factor, and f(i) represents the power adjustment amount.

[0081] Furthermore, after the terminal adjusts the uplink power, steps 101-104 can be repeated to adjust the uplink power in real time according to changes in the communication environment.

[0082] The uplink power control method provided in this embodiment of the invention can control the uplink power while taking into account both the user's communication quality and the degree of interference experienced by neighboring cells.

[0083] Figure 3 This is a schematic diagram of an uplink power control device provided in an embodiment of the present invention. Figure 3 As shown, the aforementioned uplink power control device may include:

[0084] The acquisition module 21 is used to acquire the time and frequency resource information for uplink transmission between the main cell and neighboring cells;

[0085] The determining module 22 is used to determine the co-channel interference coefficient, level interference coefficient, and number of collision resource blocks of the primary cell to the neighboring cell based on the time-frequency resource information; and to determine the interference value of the primary cell to the neighboring cell based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks.

[0086] The adjustment module 23 is used to adjust the uplink power control parameters of the main cell according to the interference value.

[0087] Specifically, the determining module 22 is used to determine the co-channel interference coefficient based on the type of interference between the primary cell and the neighboring cell, wherein different interference types correspond to different co-channel interference coefficient values; calculate the difference in uplink power spectral density between the primary cell and the neighboring cell, and determine the level interference coefficient based on the difference; and determine the number of resource blocks shared by the primary cell and the neighboring cell based on the number of resource blocks occupied by the primary cell and the neighboring cell respectively, wherein the number of resource blocks shared by the primary cell and the neighboring cell is used to determine the number of collision resource blocks.

[0088] Specifically, the adjustment module 23 is used to increase the uplink power control parameter of the main cell if the interference value is less than a first threshold; keep the uplink power control parameter of the main cell unchanged if the interference value is greater than or equal to the first threshold and less than or equal to a second threshold; and decrease the uplink power control parameter of the main cell if the interference value is greater than the second threshold.

[0089] The adjustment module 23 is further configured to, based on the number of resource blocks required by the terminal and the path loss parameters, increase the expected physical uplink shared channel power by a first step length and increase the path loss compensation factor by a second step length; wherein the increased expected physical uplink shared channel power is less than or equal to a first upper threshold and the increased path loss compensation factor is less than or equal to a second upper threshold; or, decrease the expected physical uplink shared channel power by a first step length and decrease the path loss compensation factor by a second step length; wherein the decreased expected physical uplink shared channel power is greater than or equal to a first lower threshold and the decreased path loss compensation factor is greater than or equal to a second lower threshold.

[0090] Figure 3 The uplink power control device provided in the illustrated embodiment can be used to execute the present invention. Figure 2 The implementation principle and technical effects of the method embodiment shown can be further referred to the relevant description in the method embodiment.

[0091] Figure 4 This is a schematic diagram of another uplink power control device provided in an embodiment of the present invention. Figure 4 As shown, the aforementioned uplink power control device may further include:

[0092] The sending module 24 is used to send the increased uplink power control parameters to the terminal so that the terminal increases the uplink power according to the increased uplink power control parameters; or, it is used to send the decreased uplink power control parameters to the terminal so that the terminal decreases the uplink power according to the decreased uplink power control parameters.

[0093] Figure 5 A schematic diagram of the structure of an electronic device provided for the implementation of the present invention. Figure 5 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0094] like Figure 5 As shown, the electronic device may include at least one processor; and at least one memory communicatively connected to the processor, wherein the memory stores program instructions executable by the processor, and the processor can execute the present invention by calling the program instructions. Figure 2 The illustrated embodiment provides an uplink power control method. The electronic device is manifested in the form of a general-purpose computing device. The components of the electronic device may include, but are not limited to: one or more processors 410, a communication interface 420, a memory 430, and a communication bus 440 connecting different system components (including the memory 430 and the processing unit 410).

[0095] Communication bus 440 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) buses, Micro Channel Architecture (MAC) buses, Enhanced ISA buses, Video Electronics Standards Association (VESA) local buses, and Peripheral Component Interconnect (PCI) buses.

[0096] Electronic devices typically include a variety of computer-readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, and removable and non-removable media.

[0097] Memory 430 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0098] A program / utility having a set (at least one) of program modules can be stored in memory 430. Such program modules include—but are not limited to—an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. The program modules typically perform the functions and / or methods described in the embodiments of the present invention.

[0099] Processor 410 executes various functional applications and data processing by running programs stored in memory 430, such as implementing the present invention. Figure 2 The uplink power control method provided in the illustrated embodiment.

[0100] This invention provides a computer-readable storage medium including a stored program, wherein the program, when executed, controls the device containing the computer-readable storage medium to perform the invention. Figure 2 The uplink power control method provided in the illustrated embodiment.

[0101] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including—but not limited to—electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of transmitting, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0102] The program code contained on a computer-readable medium may be transmitted using any suitable medium, including—but not limited to—wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0103] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0104] The foregoing has described specific embodiments of the invention. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired results. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0105] In the description of this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this invention, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this invention, as well as the features of different embodiments or examples, without contradiction.

[0106] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0107] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of the invention pertain.

[0108] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0109] In the embodiments provided by this invention, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0110] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An uplink power control method, characterized in that, include: Obtain time and frequency resource information for uplink transmission between the primary cell and neighboring cells; Based on the time-frequency resource information, determine the co-frequency interference coefficient, level interference coefficient, and number of collision resource blocks of the primary cell to the neighboring cells; The interference value of the primary cell to the neighboring cell is determined based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks. Adjust the uplink power control parameters of the main cell based on the interference value; The acquisition of time-frequency resource information for uplink transmission between the primary cell and neighboring cells includes: Obtain the interference type of the primary cell to the neighboring cell, the uplink power spectral density of the primary cell and the neighboring cell, and the number of resource blocks occupied by the primary cell and the neighboring cell respectively; Based on the aforementioned time-frequency resource information, the co-channel interference coefficient, level interference coefficient, and number of colliding resource blocks of the primary cell to neighboring cells are determined, including: The co-channel interference coefficient is determined based on the type of interference from the primary cell to the neighboring cell, wherein different interference types correspond to different co-channel interference coefficient values; Calculate the difference in uplink power spectral density between the primary cell and the neighboring cell, and determine the level interference coefficient based on the difference; Based on the number of resource blocks occupied by the primary cell and the neighboring cell respectively, the number of resource blocks shared by the primary cell and the neighboring cell is determined, and the number of resource blocks shared by the primary cell and the neighboring cell is used to determine the number of collision resource blocks.

2. The method according to claim 1, characterized in that, Obtain time-frequency resource information from multiple neighboring cells; Based on the time-frequency resource information of the multiple neighboring cells, the co-frequency interference coefficient, the level interference coefficient, and the number of collision resource blocks of the main cell to each neighboring cell are determined respectively.

3. The method according to claim 1, characterized in that, Based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks, the interference value of the primary cell to the neighboring cell is determined, including: The interference value is obtained by calculating the product of the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks for each neighboring cell, and summing the products of each neighboring cell.

4. The method according to claim 1, characterized in that, Based on the interference value, adjust the uplink power control parameters of the primary cell, including: If the interference value is less than the first threshold, then the uplink power control parameter of the main cell is increased; If the interference value is greater than or equal to the first threshold and less than or equal to the second threshold, the uplink power control parameters of the main cell are kept unchanged. If the interference value is greater than the second threshold, then the uplink power control parameter of the main cell is reduced.

5. The method according to claim 4, characterized in that, The uplink power control parameters include the desired physical uplink shared channel power P. 0_PUSCH and road loss compensation factor α; Increasing the uplink power control parameters of the primary cell includes: Based on the number of resource blocks required by the terminal and the path loss parameters, the expected physical uplink shared channel power is increased by the first step and the path loss compensation factor is increased by the second step; wherein, the increased expected physical uplink shared channel power is less than or equal to the first upper threshold and the increased path loss compensation factor is less than or equal to the second upper threshold. The increased uplink power control parameters are sent to the terminal so that the terminal increases the uplink power according to the increased uplink power control parameters.

6. The method according to claim 5, characterized in that, Reducing the uplink power control parameters of the primary cell includes: The expected physical uplink shared channel power is reduced by the first step, and the path loss compensation factor is reduced by the second step; wherein the reduced expected physical uplink shared channel power is greater than or equal to the first lower threshold, and the reduced path loss compensation factor is greater than or equal to the second lower threshold; The reduced uplink power control parameters are sent to the terminal so that the terminal can reduce the uplink power according to the reduced uplink power control parameters.

7. An uplink power control device, characterized in that, include: The acquisition module is used to acquire time and frequency resource information for uplink transmission between the primary cell and neighboring cells; The determination module is used to determine the co-channel interference coefficient, level interference coefficient, and number of collision resource blocks of the primary cell to neighboring cells based on the time-frequency resource information. The interference value of the primary cell to the neighboring cell is determined based on the co-channel interference coefficient, the level interference coefficient, and the number of collision resource blocks. The adjustment module is used to adjust the uplink power control parameters of the main cell according to the interference value; The acquisition module is specifically used for: Obtain the interference type of the primary cell to the neighboring cell, the uplink power spectral density of the primary cell and the neighboring cell, and the number of resource blocks occupied by the primary cell and the neighboring cell respectively; The determining module is specifically used for: The co-channel interference coefficient is determined based on the type of interference from the primary cell to the neighboring cell, wherein different interference types correspond to different co-channel interference coefficient values; Calculate the difference in uplink power spectral density between the primary cell and the neighboring cell, and determine the level interference coefficient based on the difference; Based on the number of resource blocks occupied by the primary cell and the neighboring cell respectively, the number of resource blocks shared by the primary cell and the neighboring cell is determined, and the number of resource blocks shared by the primary cell and the neighboring cell is used to determine the number of collision resource blocks.

8. An electronic device, characterized in that, include: At least one processor; as well as At least one memory communicatively connected to the processor, wherein: The memory stores program instructions that can be executed by the processor, and the processor can execute the method as described in any one of claims 1 to 6 by calling the program instructions.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device on which the computer-readable storage medium is located to perform the method of any one of claims 1 to 6.

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