CN115065581B

CN115065581B - Signal compensation method and related device

Info

Publication number: CN115065581B
Application number: CN202210641693.7A
Authority: CN
Inventors: 李玉宝
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2024-03-19
Anticipated expiration: 2042-06-08
Also published as: CN115065581A

Abstract

The application provides a signal compensation method and a related device, firstly, a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block are determined, wherein the first resource block and the second resource block respectively comprise at least one resource slice; then, calculating a spectrum compensation increment across resource slices based on the number of resource slices between a first resource slice in the first resource block and a second resource slice in the second resource block; finally, a spectrum compensation value for each resource tile between the first resource tile and the second resource tile is determined based on the first spectrum compensation value and the spectrum compensation increment. The efficiency and performance of signal compensation can be greatly improved.

Description

Signal compensation method and related device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a signal compensation method and a related device.

Background

With the development of technology, in a communication system, the processing effect of an analog filter at the front end of a radio frequency is limited, and the larger the bandwidth is, the larger the fluctuation of a frequency band is, and particularly, the larger fading is on a side band. It is often desirable to compensate the spectrum at baseband to minimize additional channel loss. How to improve the efficiency and the universality of the radio frequency signal compensation method becomes a difficult problem.

Disclosure of Invention

In view of this, the present application provides a signal compensation method and related device, which can be applied to communication network systems such as NR system, LTE system, etc., and consume less resources, thereby greatly improving the efficiency and performance of signal compensation.

In a first aspect, an embodiment of the present application provides a signal compensation method, where the method includes:

determining a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block, the first resource block and the second resource block respectively comprising at least one resource slice;

calculating a spectrum compensation increment across resource tiles based on a number of resource tiles between a first resource tile within the first resource tile and a second resource tile within the second resource tile;

and determining the spectrum compensation value of each resource slice between the first resource slice and the second resource slice based on the first spectrum compensation value and the spectrum compensation increment.

In a second aspect, an embodiment of the present application provides a chip for compensating for a spectrum of a resource block, including a processor configured to:

In a third aspect, an embodiment of the present application provides a terminal, where the apparatus includes a chip according to the second aspect of the embodiment of the present application.

In a fourth aspect, an embodiment of the present application provides a signal compensation apparatus for compensating a spectrum of a resource block, where the apparatus includes:

a determining unit configured to determine a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block, where the first resource block and the second resource block each include at least one resource slice;

an increment unit, configured to calculate a spectrum compensation increment across resource slices based on a number of resource slices between a first resource slice in the first resource block and a second resource slice in the second resource block;

and the compensation unit is used for determining the spectrum compensation value of each resource slice between the first resource slice and the second resource slice based on the first spectrum compensation value and the spectrum compensation increment.

In a fifth aspect, embodiments of the present application provide a computer storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a processor to perform part or all of the steps as described in the first aspect of the embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, by the above signal compensation method and related apparatus, first, a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block are determined, where the first resource block and the second resource block respectively include at least one resource slice; then, calculating a spectrum compensation increment across resource slices based on the number of resource slices between a first resource slice in the first resource block and a second resource slice in the second resource block; finally, a spectrum compensation value for each resource tile between the first resource tile and the second resource tile is determined based on the first spectrum compensation value and the spectrum compensation increment. The efficiency and performance of signal compensation can be greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a resource block according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a mobile communication system according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a signal compensation method according to an embodiment of the present application;

FIG. 4 is a flowchart illustrating another signal compensation method according to an embodiment of the present disclosure;

FIG. 5 is a flowchart illustrating another signal compensation method according to an embodiment of the present disclosure;

fig. 6A is a schematic diagram of a method for determining a unit gain difference without a dc subcarrier according to an embodiment of the present application;

fig. 6B is a schematic diagram of another method for determining a unit gain difference without a dc subcarrier according to an embodiment of the present application;

fig. 6C is a schematic diagram of a method for determining a unit gain difference with a dc subcarrier according to an embodiment of the present application;

FIG. 7 is a flowchart illustrating another signal compensation method according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a chip according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 11 is a block diagram illustrating functional units of a signal compensation device according to an embodiment of the present disclosure;

fig. 12 is a block diagram of functional units of another signal compensation device according to an embodiment of the present application.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship. The term "plurality" as used in the embodiments herein refers to two or more.

The "connection" in the embodiments of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way in the embodiments of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The background art and related terms of the present application will be described with reference to fig. 1, and fig. 1 is a schematic structural diagram of a resource block according to an embodiment of the present application.

(1) Resource Block (RB): 1 resource block may be formed by 7 orthogonal frequency division multiplexing symbols in the time domain and 12 subcarriers in the frequency domain, and in this embodiment of the present application, the resource block is described only in the frequency domain direction, that is, one resource block may include 12 subcarriers. One subcarrier is spaced 15kHz apart. One RB is 12 x 15khz in the frequency domain.

The resource blocks are contiguous in the frequency domain, the number of which is related to the frequency point bandwidth, e.g. 100 resource blocks for a 20MHz bandwidth and 50 resource blocks for a 10MHz bandwidth.

(2) Resource Element (RE): i.e. one subcarrier in the frequency domain, one orthogonal frequency division multiplexing symbol in the time domain, 12 resource slices can constitute one resource block in the frequency domain direction. Each resource slice is spaced at 15KHZ.

(3) DC subcarrier (DC subcarrier): in the subcarrier architecture of the orthogonal frequency division multiplexing, the center position is actually set to 0, and is not used, and is called a direct current subcarrier, the direct current subcarrier only exists in a long term evolution (Long Term Evolution, LTE) system, when the total number of resource blocks in the effective bandwidth in the system is even, the direct current subcarrier is generally not present, when the total number of resource blocks in the effective bandwidth in the system is odd, the direct current subcarrier exists in the most middle resource block, but the protocol prescribes that the direct current subcarrier does not transmit any data symbol, and no other purpose except 15KHZ is occupied.

The optical filter is difficult to realize the flatness of the whole frequency band in a long-term evolution system, a New Radio (NR) system, a 6G network system and the like, and the wider the bandwidth is, the larger the fluctuation is, so that the frequency spectrum needs to be compensated in a baseband, and the extra channel loss is reduced as much as possible.

The existing signal compensation method has overlarge operand and non-ideal approximate compensation performance when adopting time domain compensation, but 12 resource slices in a resource block cannot be aligned when adopting frequency domain compensation, and the signal compensation process is very complicated due to the existence of direct current subcarriers.

In order to solve the above problems, the embodiments of the present application provide a signal compensation method and related apparatus, which may be applicable to communication network systems such as NR systems, LTE systems, etc., and consume less resources, thereby greatly improving the efficiency and performance of signal compensation.

An application scenario of the signal compensation method according to the embodiment of the present application is described below with reference to fig. 2.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a mobile communication system according to an embodiment of the present application. The mobile communication system may be an LTE system, or may be a 5G system, and the 5G system is also called a New Radio (NR) system, or may be a next generation mobile communication technology system of 5G, which is not limited in this embodiment.

Optionally, the mobile communication system is applicable to different network architectures including, but not limited to, a relay network architecture, a dual link architecture, a car networking (Vehicle to Everything, V2X) architecture, etc.

The mobile communication system includes: access network device 220 and terminal device 240.

Access network device 220 may be a Base Station (BS), also referred to as a base station device, and is a device deployed in a radio access network (Radio Access Network, RAN) to provide wireless communication functionality. For example, the device for providing a base station function in the 2G network includes a base radio transceiver station (base transceiver station, BTS), the device for providing a base station function in the 3G network includes a node B (NodeB), the device for providing a base station function in the 4G network includes an evolved NodeB (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the device for providing a base station function in the 5G system is a gNB, and the device for providing a base station function in the future new communication system is a continuously evolved NodeB (english: ng-eNB), and the access network device 220 in the embodiment of the present disclosure further includes a device for providing a base station function in the future new communication system, etc., and the specific implementation of the access network device 220 is not limited. The access network device may also include Home base stations (henbs), relays (Relay), pico base stations Pico, etc.

The base station controller is a device for managing base stations, such as a base station controller (base station controller, BSC) in a 2G network, a radio network controller (radio network controller, RNC) in a 3G network, and may also be a device for controlling and managing base stations in a new communication system in the future.

The network side network (network) in the embodiment of the present disclosure is a communication network that provides a communication service for the terminal device 240, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on a core network side.

The Core Network may be an evolved packet Core Network (evolved packet Core, EPC), a 5G Core Network (english: 5G Core Network), or may be a new type of Core Network in future communication systems. The 5G Core Network is composed of a set of devices, and implements an access and mobility management function (Access and Mobility Management Function, AMF) for mobility management and the like, a user plane function (User Plane Function, UPF) for providing packet routing forwarding and quality of service (Quality of Service, qoS) management and the like, a session management function (Session Management Function, SMF) for providing session management, IP address allocation and management and the like. The EPC may be composed of an MME providing functions of mobility management, gateway selection, etc., a Serving Gateway (S-GW) providing functions of packet forwarding, etc., and a PDN Gateway (P-GW) providing functions of terminal address allocation, rate control, etc.

Access network device 220 and terminal device 240 establish a wireless connection over a wireless air interface. Optionally, the wireless air interface is a wireless air interface based on 5G standard, such as the wireless air interface is NR; or, the wireless air interface can also be a wireless air interface based on the technical standard of the next generation mobile communication network of 5G; alternatively, the wireless air interface may be a wireless air interface based on the 4G standard (LTE system). Access network device 220 may receive upstream data sent by terminal device 240 over a wireless connection.

Terminal device 240 may refer to a device in data communication with access network device 220. Terminal device 240 may communicate with one or more core networks via a radio access network. The terminal device 240 may be various forms of User Equipment (UE), access terminal devices, subscriber units, subscriber stations, mobile Stations (MS), remote stations, remote terminal devices, mobile devices, user terminal devices, terminal devices (terminal equipment), wireless communication devices, user agents, or user equipment. The terminal device 240 may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., which is not limited by this embodiment. Terminal device 240 may receive downlink data sent by access network device 220 via a wireless connection with access network device 220.

It should be noted that, when the mobile communication system shown in fig. 2 adopts the 5G system or the next generation mobile communication technology system of 5G, the above-mentioned network elements may have different names in the 5G system or the next generation mobile communication technology system of 5G, but have the same or similar functions, which is not limited by the embodiments of the present disclosure.

Another point to be noted is that in the mobile communication system shown in fig. 2, a plurality of access network devices 220 and/or a plurality of terminal devices 240 may be included, and only one access network device 220 and one terminal device 240 are shown in fig. 2 for illustration, but the embodiment of the present disclosure is not limited thereto.

After an application scenario of the signal compensation method of the present application is introduced, a signal compensation method in an embodiment of the present application is described below with reference to fig. 3, and fig. 3 is a schematic flow chart of the signal compensation method provided in the embodiment of the present application, which is used for compensating a spectrum of a resource block, and specifically includes the following steps:

step 301, determining a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block.

The first resource block and the second resource block respectively include at least one resource slice, the first resource block and the second resource block may be adjacent resource blocks or non-adjacent resource blocks, the first resource slice may be any one of the resource slices included in the first resource block, and the second resource slice may be any one of the resource slices included in the second resource block, which is not specifically limited herein.

In one possible embodiment, the first spectrum compensation value corresponding to the first resource slice may be determined first, and then the second spectrum compensation value corresponding to the second resource slice may be determined based on a preset fitting order, a sampling rate, and the number of resource slices between the first resource slice and the second resource slice.

It can be seen that by determining the first spectrum compensation value for the first resource block and the second spectrum compensation value for the second resource block, a reference can be provided for subsequent signal compensation, and an accurate spectrum compensation value for each resource slice can be obtained without actually measuring each resource slice.

Step 302, calculating a spectrum compensation increment crossing resource slices based on the number of resource slices between a first resource slice in the first resource block and a second resource slice in the second resource block;

the spectrum compensation increment may be understood as a value of a subsequent resource slice increased in spectrum compensation with respect to a previous resource slice, a spectrum compensation difference value between the first spectrum compensation value and the second spectrum compensation value may be determined first, and then the spectrum compensation increment may be determined based on the number of resource slices between the first resource slice and the second resource slice and the spectrum compensation difference value. For example, the number of resource slices between the first resource slice and the second resource slice is 12, and the spectrum compensation difference is 12db, the spectrum compensation increment may be 1db.

It can be seen that, based on the number of resource slices between the first resource slice in the first resource block and the second resource slice in the second resource block, the spectrum compensation increment of the cross resource slice is calculated, so that the step length between the resource slices can be determined, and the accurate spectrum compensation value of each resource slice can be determined conveniently.

Step 303, determining a spectrum compensation value of each resource slice between the first resource slice and the second resource slice based on the first spectrum compensation value and the spectrum compensation increment.

Wherein, for each resource slice, the following steps may be performed: a spectrum compensation value for the resource tile is calculated based on the first spectrum compensation value, the spectrum compensation increment, and an offset value for the resource tile relative to the first resource tile. For example, the offset value of the first resource slice after the first resource slice may be 1, the offset value of the second resource slice after the first resource slice may be 2, the spectrum compensation value of the first resource slice after the first resource slice may be obtained by adding a spectrum compensation increment on the basis of the first spectrum compensation value, the spectrum compensation value of the second resource slice after the first resource slice may be obtained by adding a spectrum compensation increment twice on the basis of the first spectrum compensation value, and so on, which will not be described herein.

Therefore, the efficiency and performance of signal compensation can be greatly improved through the method.

The following describes another signal compensation method in the embodiment of the present application with reference to fig. 4, and fig. 4 is a schematic flow chart of another signal compensation method provided in the embodiment of the present application, which is used for compensating a spectrum of a resource block, and specifically includes the following steps:

step 401, determining a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block.

Step 402, calculating a spectrum compensation increment across resource slices based on the number of resource slices between a first resource slice in the first resource block and a second resource slice in the second resource block.

Step 403, determining a spectrum compensation value of each resource slice between the first resource slice and the second resource slice based on the first spectrum compensation value and the spectrum compensation increment.

Step 404, determining a fit compensation sum based on the first spectrum compensation value, the second spectrum compensation value and the spectrum compensation value of each resource slice.

Step 405, determining a sum of actual spectrum offsets of the first resource slice, the second resource slice and the respective resource slices.

Wherein the sum of the actual spectral offsets may be determined by making an actual measurement for each resource slice.

Step 406, determining whether the error value between the sum of the fitting compensation and the sum of the actual compensation meets a preset error threshold.

When the error value does not meet the preset error threshold, step 407 is executed; and when the error value meets the preset error threshold value, executing step 408.

Step 407, reselecting the first resource tile and/or the second resource tile such that the number of resource tiles between the first resource tile and the second resource tile is reduced to a first number.

For example, if the number of resource slices between the current first resource slice and the second resource slice is 24, the first resource slice and/or the second resource slice may be reselected such that the number of resource slices therebetween is 12.

Therefore, when the error of the fitted compensation value is larger, the interpolation interval can be reduced, and the accuracy of the determined fitting compensation can be improved.

Step 408, reselecting the first resource tile and/or the second resource tile such that a number of resource tiles between the first resource tile and the second resource tile increases to a second number.

Therefore, when the fitted compensation value is in the error range, the interpolation interval is further enlarged, and the signal compensation efficiency is improved.

In a possible embodiment, when the error value meets the preset error threshold, the number of resource slices between the first resource slice and the second resource slice may be determined as an initial number of resource slices, where the initial number of resource slices is used to indicate the number of resource slices between the first resource slice and/or the second resource slice when the first resource slice and/or the second resource slice are reselected. Therefore, when signal compensation is performed next time, the initial resource piece quantity is directly called to select the first resource piece and the second resource piece, the quantity of the resource pieces at intervals between the first resource piece and the second resource piece is not needed to be considered, and the efficiency and the performance of the signal compensation are improved.

For easy understanding, the signal compensation method in the embodiment of the present application is described below with reference to fig. 5, and fig. 5 is a schematic flow chart of another signal compensation method provided in the embodiment of the present application, which specifically includes the following steps:

in step 501, m+1 target resource blocks are determined according to the total number of resource blocks N and the gain calculation interval X.

Wherein the gain calculation interval X represents the number of resource blocks of the interval between the resource blocks needing gain calculation, the target resource block represents the resource blocks needing gain calculation, N is a positive integer greater than 1, X is a natural number less than or equal to N-1, M is equal to The representation is rounded up, it being understood that the gain calculation herein may be understood as the calculation of the spectral compensation value.

The total number of resource blocks N may be determined according to the bandwidth of the current communication system, for example, 100 resource blocks in a 20MHz bandwidth and 50 resource blocks in a 10MHz bandwidth.

The gain calculation interval X may be determined from a preset database, which is not described herein.

When determining the target resource blocks, the method may start from the first resource block, that is, the first resource block is the first target resource block, the number of resource blocks spaced between the second target resource block and the first target resource block is X, and similarly, the number of resource blocks spaced between the (m+1) th target resource block and the (M) th target resource block is X.

Note that the (m+1) -th target resource block is virtual in nature, and the (m+1) -th target resource block needs to be determined in order to determine the gain of the (M) -th target resource block that is actually present.

For example, when there are 19 resource blocks, if the gain calculation interval is 0, i.e., N is 19, x is 0, then M is 19, it may be determined that all of the 19 resource blocks are target resource blocks, and it is further required to determine the 20 th target resource block, which is a virtual resource block, and the number of resource blocks spaced from the 19 th target resource block is 0; and if the gain calculation interval is 2, i.e., N is 19 and X is 2, then M is equal toAnd (3) after the upward rounding, M is equal to 7, and the first resource block, the fourth resource block, the seventh resource block, the tenth resource block, the thirteenth resource block, the sixteenth resource block and the nineteenth resource block in the 19 resource blocks are determined to be the first 7 target resource blocks, and the virtual twenty-second resource block is also determined to be the 8 target resource block. And so on, they are not described in detail herein.

It will be appreciated that the size of the gain calculation interval is proportional to the speed of the subsequent frequency domain compensation and inversely proportional to the accuracy of the frequency domain compensation. The gain calculation interval is the maximum interval that the final signal compensation result is smaller than the error range, and then an inaccurate signal compensation result may be obtained by increasing the resource block interval.

Therefore, M+1 target resource blocks are determined according to the total number of the resource blocks N and the gain calculation interval X, so that the signal compensation efficiency can be improved while the signal compensation performance is ensured as much as possible.

Step 502, calculating gains of the first resource slice of each target resource block to obtain M+1 first gains.

In the frequency domain, one target resource block may include 12 resource blocks, each of which is continuous in the frequency domain, and each of which is continuous in the frequency domain, so that gains of a first resource block of each target resource block may be preferentially calculated to obtain m+1 first gains, where each first gain corresponds to each target resource block.

The gain of the first resource slice of each target resource block can be determined according to a preset fitting order, a sampling rate and a resource slice interval, so that the m+1 first gains are obtained, wherein the resource slice interval represents the number of resource slices between the first resource slice of any one target resource block except the first target resource block and the first resource slice of the first target resource block, namely the number of resource slices between the first resource slice and the second resource slice.

Specifically, the preset fitting order represents the order of data fitting, and in brief, the higher the fitting order is, the more accurate the data obtained by final fitting is, and the preset fitting order can be set according to the needs and will not be described herein.

Specifically, the resource chip spacing between the first resource chip of the first target resource block may be set to 0, when the total number of the resource blocks is even, there is no direct current subcarrier, so that the number of resource chips between the first resource chip of the second target resource block and the first resource chip of the first target resource block is 12, the number of resource chips between the first resource chip of the third target resource block and the first resource chip of the first target resource block is 24, and so on, the resource chip spacing of each target resource block may be obtained. When the total number of the resource blocks is odd, there is a direct current subcarrier, and since the direct current subcarrier only exists in the middle resource block, one can be added to the resource block interval of the target resource block after the direct current subcarrier, for example, three resource blocks exist now, and all three resource blocks are target resource blocks, then the direct current subcarrier will exist on the second resource block, then the number of resource blocks between the first resource block of the second target resource block and the first resource block of the first target resource block is 12, and the number of resource blocks between the first resource block of the third target resource block and the first resource block of the first target resource block is 25, and so on, and will not be repeated herein.

In one possible embodiment, i represents a resource tile spacing, a _z The Gain can be calculated by the following formula, where z represents a preset fitting order, and the maximum value of the preset fitting order is Z, fs, which represents the sampling rate, and 15KHZ represents the length of one resource slice:

it can be seen that, with reference to the first resource slice of the first target resource block, gains of the first resource slice of other target resource blocks relative to the first resource slice of the first resource block can be determined, so as to obtain m+1 first gains.

The gain of the first resource piece of each target resource block is calculated to obtain M+1 first gains, so that the fitting of the resource pieces between every two target resource blocks can be facilitated, the gain of each resource piece is determined under the condition that each resource piece is not measured, and the signal compensation efficiency is greatly improved.

Step 503, determining the second gain of each remaining resource slice according to the gain difference value of every two consecutive first gains.

Wherein the remaining resource slices represent resource slices other than the first resource slice of each of the first M target resource blocks. For example, when the total number of resource blocks is N, the total number of resource blocks is 12N, the first gain of the first resource block of m+1 target resource blocks is known, the number of remaining resource blocks is 12N-M, and the second gain of 12N-M remaining resource blocks can be determined according to the gain difference between every two consecutive first gains.

Specifically, M gain differences may be determined according to the m+1 first gains, where the gain differences represent differences between the first gain of the first resource slice of any one target resource block and the first gain of the first resource slice of the previous target resource block; then, determining M unit gain differences of the first M target resource blocks according to the M gain differences, wherein the M unit gain differences are in one-to-one correspondence with the first M target resource blocks; and finally, determining the second gain of each residual resource piece in the first M target resource blocks according to the first M gains and the M unit gain differences.

In a possible embodiment, when the total number of resource blocks N is an even number, the M unit gain differences may be obtained by dividing each gain difference by a first unit resource slice number, where the first unit resource slice number represents a product of the number of resource slices included in each resource block and (x+1). Each resource block here includes 12 resource slices, and x is a gain calculation interval.

For the sake of understanding, the following description will exemplify a method for calculating a unit gain difference of any one target resource block, and fig. 6A may be referred to, where fig. 6A is a schematic diagram of a method for determining a unit gain difference without a direct current subcarrier according to an embodiment of the present application, and a horizontal axis of the diagram is a frequency domain, and a vertical axis of the diagram is a gain amplitude, where it is known that a gain calculation interval is 0, and a target resource block RB1 includes 12 resource slices, which are respectively RE0, RE1, RE2, RE3, RE4, RE5, RE6, RE7, RE8, RE9, RE10, and RE11. At this time, knowing the first gain of RE0 of RB1 and the first gain of the first resource slice RE0 of RB2, the gain difference between RB1 and RB2 can be calculated, and then the unit gain difference of each resource slice in RB1 can be obtained by dividing by 12 x (0+1), it can be understood that the second gain of RE1 in RB1 is the first gain of RE0 in RB1 plus the unit gain difference, the second gain of RE2 in RB1 is the second gain of RE1 in RB1 plus the unit gain difference, and so on, the second gains of RE1, RE2, RE3, RE4, RE5, RE6, RE7, RE8, RE9, RE10, RE11 can be obtained.

Here, RE0, RE1, etc. indicate what number of resource slices corresponds to the target resource block, and do not represent any specific resource slice.

Similarly, in calculating the second gain of each resource slice in RB2, the gain difference between RB2 and RB3 needs to be determined by dividing by 12, which is not described herein.

Fig. 6A shows a case where the gain calculation interval is 0, and in the following, a case where the gain calculation interval is 1 is shown in conjunction with fig. 6B, which is easier to understand by comparison. Fig. 6B is a schematic diagram of another method for determining a unit gain difference value without a direct current subcarrier according to the embodiment of the present application, where the horizontal axis of the diagram is a frequency domain and the vertical axis is a gain amplitude, and it can be seen that, the known gain calculation interval is 1, the target resource block RB1 includes 12 resource blocks, where the target resource block is RB1 and RB3, one resource block RB2 is spaced between RB1 and RB3, the RB2 also includes 12 resource blocks, where the first gain of the first resource block of RB1 and the first gain of the first resource block of RB3 are known, then the gain difference value of RB1 and RB3 can be determined first, and then the gain difference value is divided by 12×1+1, to obtain a unit gain difference value between RB1 and RB3, and then the second gain of the remaining resource blocks between RB1 and RB3 is obtained by sequentially accumulating the unit gain difference value, that is the first gain of RE0 in RB1 and the second gain of RB1 is the unit gain difference value, and the second gain of RE1 in RB1 is the second gain of RE1, and the second gain of RE1 is the second gain of the unit gain difference value in RB1, and the second gain of the remaining resource blocks can be obtained.

In a possible embodiment, when the total number N of resource blocks is an odd number, a special gain difference value of the M gain difference values may be determined, where the special gain difference value represents a gain difference value corresponding to two consecutive target resource blocks including the (N/2) +1 th resource block; and dividing the special gain difference by a second unit resource piece number to obtain a special gain difference, and dividing M-1 gain differences except the special gain difference by a first unit resource piece number to obtain M-1 unit gain differences, wherein the first unit resource piece number represents the product of the number of resource pieces included in each resource block and (X+1), and the second unit resource piece number is equal to the first unit resource piece number plus one.

For the sake of understanding, the following description will be given by referring to fig. 6C, where fig. 6C is a schematic diagram of a method for determining a specific unit gain difference value of a direct current subcarrier according to an embodiment of the present application, the horizontal axis of the drawing is a frequency domain, the vertical axis is a gain amplitude, it is seen that the known gain calculation interval is 0, the target resource block RB1 includes 12 resource slices, which are respectively RE0, RE1, RE2, RE3, RE4, RE5, RE6, RE7, RE8, RE9, RE10, and RE11, and the DC subcarrier is located between RE5 and RE 6. At this time, knowing the first gain of RE0 in RB1 and the first gain of the first resource segment RE0 in RB2, a special gain difference between RB1 and RB2 can be calculated, and then the unit gain difference of each resource segment in RB1 can be obtained by dividing by 13 x (0+1), it can be understood that the second gain of RE1 in RB1 is the first gain of RE0 in RB1 plus the unit gain difference, the second gain of RE2 in RB1 is the second gain of RE1 in RB1 plus the unit gain difference, and because of the span of two subcarriers, the second gain of RE6 in RB1 is the second gain of RE5 in RB1 plus twice the unit gain difference, and so on, the second gains of RE1, RE2, RE3, RE4, RE5, RE6, RE7, RE8, RE9, RE10, RE11 can be obtained. And will not be described in detail herein.

It should be noted that, only when the (N/2) +1 th resource block is included between two consecutive target resource blocks and the total number N of the resource blocks is an odd number, the previous target resource block of the two consecutive target resource blocks needs to be divided by the first unit resource chip number when calculating the unit gain difference value, and the target resource blocks other than the previous target resource block of the two consecutive target resource blocks still need to be divided by the first unit resource chip number when calculating the unit gain difference value.

It can be seen that the second gain of each remaining resource slice is determined according to the gain difference value of every two continuous first gains, and the second gain of each remaining resource slice can be determined by a linear interpolation method, so that the processing efficiency is improved while the accuracy of the gains is ensured.

In step 504, a compensation coefficient for each resource slice is determined according to each first gain and each second gain.

Wherein M first compensation coefficients of a first resource slice of the first M target resource blocks may be determined according to the first M first gains, and a second compensation coefficient of each remaining resource slice may be determined according to the second gain of each remaining resource slice.

And step 505, compensating the radio frequency signal according to the compensation coefficient of each resource slice to obtain a compensated radio frequency signal.

The radio frequency signal can be compensated based on the first compensation coefficient and the second compensation coefficient, so as to obtain a compensated radio frequency signal.

The frequency domain compensation of the radio frequency signal can be referred to the existing compensation method, and will not be described herein.

It can be seen that, by the above signal compensation method, first, m+1 target resource blocks are determined according to the total number of resource blocks N and the gain calculation interval X, where the gain calculation interval X represents the number of resource blocks at intervals between resource blocks requiring gain calculation, the target resource blocks represent the resource blocks requiring gain calculation, N is a positive integer greater than 1, and X is a small integerA natural number equal to or greater than N-1, M being equal toThen, calculating the gain of the first resource piece of each target resource block to obtain M+1 first gains; then, determining a second gain of each remaining resource block according to a gain difference value of every two continuous first gains, wherein the remaining resource blocks represent resource blocks except for a first resource block of each target resource block in the first M target resource blocks; then, determining a compensation coefficient of each resource slice according to each first gain and each second gain; and finally, compensating the radio frequency signals according to the compensation coefficient of each resource slice to obtain the compensated radio frequency signals. The efficiency and performance of signal compensation can be greatly improved.

The following describes another signal compensation method in the embodiment of the present application with reference to fig. 7, and fig. 7 is a schematic flow chart of another signal compensation method provided in the embodiment of the present application, specifically including the following steps:

in step 701, c+1 resource blocks to be calculated are determined according to the estimated total number of resource blocks a and the first estimated calculation interval b 1.

Wherein the first estimated computation interval b1 represents the number of estimated resource blocks of the interval between the estimated resource blocks to be subjected to gain computation, the resource blocks to be computed represent the estimated resource blocks to be subjected to gain computation, a is a positive integer greater than 1, b1 is a natural number less than or equal to a-1, c is equal to Representing an upward rounding.

The step of determining the resource block to be calculated may refer to the description of step 301 in fig. 3, and will not be described herein.

Step 702, determining a fitting gain of each resource slice in the c+1 resource blocks to be calculated, so as to obtain a sum of fitting gains.

The gain of the first resource slice of each resource block to be calculated may be calculated first, and referring to the descriptions in step 502 and step 503, the fitting gain of each resource slice is determined, and the fitting gains of all the resource slices are summed to obtain the sum of the fitting gains.

Step 703, determining an actual gain of each resource slice in the c+1 resource blocks to be calculated, so as to obtain a sum of the actual gains.

The gain calculation formula in step 502 may be applied to each resource slice to obtain an actual gain of each resource slice, and the actual gains of all resource slices are summed to obtain a sum of the actual gains.

Step 704, determining whether an error value between the sum of the actual gains and the sum of the fitting gains meets a preset error threshold.

Step 705 is executed when the error value does not meet the preset error threshold; and when the error value accords with the preset error threshold value, executing step 706.

Step 705, determining the second estimated calculation interval b2 as the gain calculation interval when the error value does not meet the preset error threshold.

Wherein b2 is equal to b1-1. It will be appreciated that the size of the gain calculation interval is proportional to the speed of the subsequent frequency domain compensation and inversely proportional to the accuracy of the frequency domain compensation. The gain calculation interval can be reduced by one value.

In one possible embodiment, the gain calculation interval may be stored in an initial database, which may be directly invoked when signal compensation is actually required. The efficiency of signal compensation is improved while the signal compensation performance is ensured as much as possible.

Step 706, determining a third pre-estimated computation interval b3 when the error value meets the preset error threshold.

Wherein b3 is equal to b1+1.

Step 707, determining d+1 resource blocks to be calculated according to the estimated total number of resource blocks a and the third estimated calculation interval b3.

Wherein d is equal to Is rounded upward.

Step 708, determining a fitting gain of each resource slice in the d+1 resource blocks to be calculated, so as to obtain a sum of fitting gains.

Step 709, determining an actual gain of each resource slice in the c+1 resource blocks to be calculated, so as to obtain a sum of the actual gains.

Step 710, determining whether an error value between the sum of the actual gains and the sum of the fitting gains meets the preset error threshold.

In step 711, when the error value does not meet the preset error threshold, determining the fourth estimated calculation interval b4 as the gain calculation interval.

Wherein b4 is equal to b3-1.

It can be seen that steps 707-711 are actually loops of steps 701-705.

Step 712, determining m+1 target resource blocks according to the total number of resource blocks N and the gain calculation interval X.

In step 713, the gains of the first resource slice of each target resource block are calculated, resulting in m+1 first gains.

Step 714, determining a second gain for each remaining resource slice based on the gain difference for each two consecutive first gains.

In step 715, a compensation coefficient for each resource slice is determined according to each first gain and each second gain.

And 716, compensating the radio frequency signal according to the compensation coefficient of each resource slice to obtain a compensated radio frequency signal.

The steps not described in detail above may refer to the whole or part of the description of the method in fig. 5, and are not described herein.

Therefore, through the signal compensation method, the efficiency of signal compensation can be improved while the signal compensation performance is ensured as much as possible.

A chip according to an embodiment of the present application will be described with reference to fig. 8, and fig. 8 is a schematic structural diagram of a chip provided in an embodiment of the present application, where the chip 800 includes a processor 810 for compensating a spectrum of a resource block, and the processor 810 is configured to:

A terminal according to an embodiment of the present application will be described with reference to fig. 9, and fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application, where the terminal 900 includes a chip 800 as shown in fig. 8.

An electronic device according to an embodiment of the present application will be described with reference to fig. 10, and fig. 10 is a schematic structural diagram of an electronic device 1000 provided by an embodiment of the present application, where the electronic device 1000 includes a baseband Chip 1010, and the baseband Chip 1010 may be a System On Chip (SOC) including a microprocessor 1011, a digital signal processor 1012, and an accumulator 1013. The baseband chip 1010 may support a variety of network formats including, but not limited to, 2G, 3G, 4G, 5G, 6G, wiFi, and the like.

The microprocessor 1011 may be a CPU (central processing unit) formed by a large-scale integrated circuit, the dsp 1012 may be called by the microprocessor 1011 to calculate a unit gain difference between each resource block, and the accumulator 1013 (accumulator) may be called by the microprocessor 1011 to accumulate and calculate the unit gain difference to obtain a fitting gain of each resource block in each resource block.

Specifically, the microprocessor 1011 may call the digital signal processor 1012 to perform the following steps:

determining M+1 target resource blocks according to the total number of the resource blocks N and a gain calculation interval X, wherein the gain calculation interval X represents the number of the resource blocks needing gain calculation and the target resource blocks represent the resource blocks needing gain calculation, N is a positive integer greater than 1, X is a natural number less than or equal to N-1, and M is equal to [ N/(X+1) ];

calculating the gain of the first resource piece of each target resource block to obtain M+1 first gains;

wherein the microprocessor 1011 may invoke the accumulator 1013 to perform the steps of:

determining a second gain of each remaining resource piece in the first M target resource blocks according to a gain difference value of every two continuous first gains, wherein the remaining resource pieces represent resource pieces except for a first resource piece of each target resource block in the first M target resource blocks;

Determining a compensation coefficient of each resource piece in the first M target resource blocks according to each first gain and each second gain;

and compensating the radio frequency signals according to the compensation coefficient of each resource slice to obtain the compensated radio frequency signals.

Therefore, the baseband chip 1010 can be used for performing frequency domain compensation on radio frequency signals, is suitable for communication network systems such as an NR system and an LTE system, consumes less resources, and greatly improves the efficiency and performance of signal compensation.

It is understood that the baseband chip 1010 may further include a channel encoder, a modem, an interface module, etc., where the channel encoder mainly performs channel encoding, encryption, etc. of traffic information and control information, where the channel encoding includes convolutional encoding, FIRE code, parity code, interleaving, burst formatting, etc. The modem mainly performs the Gaussian Minimum Shift Keying (GMSK) modulation/demodulation mode required by the GSM system. The interface module comprises an analog interface, a digital interface, an auxiliary interface and the like, which are not shown in the figures for a long time.

Through the electronic equipment, firstly, M+1 target resource blocks are determined according to the total number of the resource blocks N and a gain calculation interval X, wherein the gain calculation interval X represents the number of the resource blocks needing gain calculation and the interval between the resource blocks, the target resource blocks represent the resource blocks needing gain calculation, N is a positive integer greater than 1, X is a natural number less than or equal to N-1, and M is equal to Then, calculating the gain of the first resource piece of each target resource block to obtain M+1 first gains; then, determining a second gain of each remaining resource block according to a gain difference value of every two continuous first gains, wherein the remaining resource blocks represent resource blocks except for a first resource block of each target resource block in the first M target resource blocks; then, determining a compensation coefficient of each resource slice according to each first gain and each second gain; and finally, compensating the radio frequency signals according to the compensation coefficient of each resource slice to obtain the compensated radio frequency signals. The efficiency and performance of signal compensation can be greatly improved.

The foregoing description of the embodiments of the present application has been presented primarily in terms of a method-side implementation. It will be appreciated that the electronic device, in order to achieve the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied as hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application may divide the functional units of the electronic device according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units may be implemented in hardware or in software functional units. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.

Fig. 11 shows a functional unit block diagram of a signal compensation apparatus according to the above embodiment in the case where respective functional blocks are divided for respective functions. As shown in fig. 11, the signal compensation device 1100 includes:

a determining unit 1110, configured to determine a first spectrum compensation value for a first resource block and a second spectrum compensation value for a second resource block, where the first resource block and the second resource block respectively include at least one resource slice;

an increment unit 1120 configured to calculate a spectrum compensation increment across resource slices based on a number of resource slices between a first resource slice in the first resource block and a second resource slice in the second resource block;

A compensation unit 1130 is configured to determine a spectrum compensation value of each resource tile between the first resource tile and the second resource tile based on the first spectrum compensation value and the spectrum compensation increment.

In the case of using integrated units, another signal compensation device 1200 in the embodiment of the present application will be described in detail below with reference to fig. 12, where the signal compensation device 1200 includes a processing unit 1201 and a communication unit 1202, where the processing unit 1201 is configured to perform any step in the foregoing method embodiments, and when performing data transmission such as sending, the communication unit 1202 is selectively invoked to complete a corresponding operation.

The signal compensation device 1200 may further include a storage unit 1203 for storing program codes and data. The processing unit 1201 may be a processor, the communication unit 1202 may be a wireless communication module, and the storage unit 1203 may be a memory.

The processing unit 1201 is specifically configured to:

The present application also provides a computer storage medium storing a computer program for electronic data exchange, the computer program causing a computer to execute some or all of the steps of any one of the methods described in the method embodiments above.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the methods described in the method embodiments above. The computer program product may be a software installation package, said computer comprising an electronic device.

It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, such as the above-described division of units, merely a division of logic functions, and there may be additional manners of dividing in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned method of the various embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored in a computer readable memory, which may include: flash disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples being provided solely to assist in the understanding of the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. A signal compensation method for compensating a spectrum of a resource block, the method comprising:

2. The method of claim 1, the determining a first spectral compensation value for a first resource block and a second spectral compensation value for a second resource block, comprising:

determining the first spectrum compensation value corresponding to the first resource slice;

and determining the second frequency spectrum compensation value corresponding to the second resource piece based on a preset fitting order, a sampling rate and the number of the resource pieces between the first resource piece and the second resource piece.

3. The method of claim 1, the calculating a spectrum compensation delta across resource tiles based on a number of resource tiles between a first resource tile within the first resource block and a second resource tile within the second resource block, comprising:

determining a spectral compensation difference between the first spectral compensation value and the second spectral compensation value;

The spectrum compensation increment is determined based on the number of resource tiles between the first resource tile and the second resource tile and the spectrum compensation difference.

4. The method of claim 1, the determining a spectral compensation value for each resource tile between the first resource tile and the second resource tile based on the first spectral compensation value and the spectral compensation delta, comprising:

for each resource slice, performing: a spectrum compensation value for the resource tile is calculated based on the first spectrum compensation value, the spectrum compensation increment, and an offset value for the resource tile relative to the first resource tile.

5. The method of claim 1, the method further comprising, after determining the spectral compensation value for each resource tile between the first resource tile and the second resource tile based on the first spectral compensation value and the spectral compensation delta:

determining a sum of fitting offsets based on the first spectral offset value, the second spectral offset value, and the spectral offset value for each resource tile;

determining a sum of actual spectrum offsets of the first resource slice, the second resource slice and the respective resource slices;

Judging whether an error value between the sum of the fitting compensation and the sum of the actual spectrum compensation accords with a preset error threshold value or not;

and when the error value does not meet the preset error threshold value, reselecting the first resource piece and/or the second resource piece so as to reduce the number of resource pieces between the first resource piece and the second resource piece to a first number.

6. The method of claim 5, after said determining whether an error value between the sum of the fit-offsets and the sum of the actual spectral offsets meets a preset error threshold, the method further comprising:

and when the error value accords with the preset error threshold value, reselecting the first resource piece and/or the second resource piece so that the number of resource pieces between the first resource piece and the second resource piece is increased to a second number.

7. The method of claim 5 or 6, after said determining whether an error value between the sum of the fit-offsets and the sum of the actual spectrum offsets meets a preset error threshold, the method further comprising:

and when the error value accords with the preset error threshold value, determining the number of the resource slices between the first resource slice and the second resource slice as an initial resource slice number, wherein the initial resource slice number is used for indicating the number of the resource slices between the first resource slice and/or the second resource slice when the first resource slice and/or the second resource slice are reselected.

8. A chip for compensating for a spectrum of a resource block, comprising a processor configured to:

9. A terminal comprising the chip of claim 8.

10. A signal compensation apparatus for compensating a spectrum of a resource block, the apparatus comprising:

11. A computer storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the method of any of claims 1-7.