CN109068348B - Method, device, equipment and storage medium for eliminating coexistence interference - Google Patents
Method, device, equipment and storage medium for eliminating coexistence interference Download PDFInfo
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Abstract
The embodiment of the application discloses a method, a device, equipment and a storage medium for eliminating coexistence interference, wherein the method is applied to a base station and comprises the following steps: acquiring preset uplink sub-bands and preset harmonic sub-bands, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-bands is different from the frequency corresponding to any frequency point in the harmonic sub-bands; receiving uplink data sent by UE; and if the uplink data is transmitted through the frequency points in the uplink sub-frequency band, transmitting the downlink data to the UE by using the frequency points in the harmonic sub-frequency band.
Description
Technical Field
The embodiments of the present application relate to electronic technologies, and relate to, but are not limited to, a method, an apparatus, a device, and a storage medium for eliminating coexistence interference.
Background
Fifth Generation Mobile Communication Technology (5G) in previous implementations, because of The influence of newly configured high frequency 5G (i.e. operating in 3.5G or 5G frequency band) Communication loss, it is desirable to increase coverage through The existing fourth Generation Mobile Communication (4G) network in The interim, i.e. so-called 5G Non-independent Networking (NSA); alternatively, in a 5G independent networking (SA), The 3rd Generation Partnership Project (3 GPP) may define some low frequency bands (e.g. 4G bands) as uplink coverage alone, so as to enhance The network coverage. However, in both NSA and SA, the spectrum resources of the low band are only used as the uplink coverage, and are not used as the spectrum resources of the data volume, for example, for the transmission of downlink data. The combination of such a 4G network and a New 5G Radio (NR) inevitably has a coexistence problem, that is, the harmonic of the 4G band falls within the receiving band of the 5G NR, thereby affecting the reception of the 5G NR signal at the UE side.
At present, for the coexistence problem of the 4G network and the 5G NR network under NSA, the harmonic waves of the 4G spectrum are mainly attenuated by a hardware filter to realize coexistence.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method, an apparatus, a device, and a storage medium for eliminating coexistence interference to solve the problems in the related art.
The technical scheme of the embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a method for eliminating coexistence interference, where the method is applied to a base station, and the method includes:
acquiring preset uplink sub-bands and preset harmonic sub-bands, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-bands is different from the frequency corresponding to any frequency point in the harmonic sub-bands;
receiving uplink data sent by User Equipment (UE);
and if the uplink data is transmitted through the frequency points in the uplink sub-frequency band, transmitting the downlink data to the UE by using the frequency points in the harmonic sub-frequency band.
In a second aspect, an embodiment of the present application provides another method for cancelling coexistence interference, where the method is applied to a UE, and the method includes:
based on preset uplink sub-bands and preset harmonic sub-bands, the harmonic frequency corresponding to any frequency point in the uplink sub-bands is different from the frequency corresponding to any frequency point in the harmonic sub-bands, and uplink data are sent to a base station through the frequency points in the uplink sub-bands;
and receiving downlink data sent by the base station through the frequency points in the harmonic sub-frequency band.
In a third aspect, an embodiment of the present application provides an apparatus for eliminating coexistence interference, including:
the frequency band acquisition module is configured to acquire a preset uplink sub-frequency band and a preset harmonic sub-frequency band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-frequency band is different from the frequency corresponding to any frequency point in the harmonic sub-frequency band;
a first receiving module configured to receive uplink data sent by the UE;
a first sending module, configured to send downlink data to the UE by using the frequency points in the harmonic sub-band if the uplink data is transmitted through the frequency points in the uplink sub-band.
In a fourth aspect, an embodiment of the present application provides another apparatus for eliminating coexistence interference, including:
the second sending module is configured to send uplink data to the base station through the frequency points in the uplink sub-frequency band based on preset uplink sub-frequency bands and preset harmonic sub-frequency bands, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-frequency bands is different from the frequency corresponding to any frequency point in the harmonic sub-frequency bands;
and the second receiving module is configured to receive downlink data sent by the base station through the frequency point in the harmonic sub-band.
In a fifth aspect, an embodiment of the present application provides an apparatus for canceling coexistence interference, including a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor implements the steps in any one of the above methods for canceling coexistence interference when executing the program.
In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in any one of the above methods for canceling coexistence interference.
In the embodiment of the present application, a method for eliminating coexistence interference is provided, in which uplink data is transmitted through a frequency point in a preset uplink sub-band, and downlink data is transmitted through a frequency point in a preset harmonic sub-band, because a harmonic frequency corresponding to any frequency point in the uplink sub-band is different from a frequency corresponding to any frequency point in the harmonic sub-band, when a UE transmits data by using a frequency point in the uplink sub-band, the harmonic frequency of the frequency point does not affect the UE to receive the downlink data, that is, the UE does not affect the reception of the UE downlink data when transmitting the uplink data.
Drawings
Fig. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present application;
fig. 2A is a schematic flow chart illustrating an implementation of a method for canceling coexistence interference according to an embodiment of the present application;
fig. 2B is a diagram illustrating a coexistence problem between the LTE B3 band and the NR n78 band according to an embodiment of the present disclosure;
fig. 2C is a schematic diagram of frequency division according to an embodiment of the present application;
fig. 2D is a schematic diagram of another frequency division according to the embodiment of the present application;
fig. 3 is a schematic flow chart illustrating another implementation of a method for canceling coexistence interference according to an embodiment of the present application;
fig. 4 is a schematic flow chart illustrating another implementation of a method for canceling coexistence interference according to an embodiment of the present application;
fig. 5 is a flowchart illustrating an implementation of another method for canceling coexistence interference according to an embodiment of the present application;
fig. 6 is a flowchart illustrating an implementation of another method for canceling coexistence interference according to an embodiment of the present application;
fig. 7 is a flowchart illustrating another implementation of a method for canceling coexistence interference according to an embodiment of the present application;
fig. 8A is a circuit diagram illustrating coexistence interference in a UE according to an embodiment of the present disclosure;
fig. 8B is a circuit diagram illustrating a UE side for solving coexistence interference according to an embodiment of the present disclosure;
fig. 9A is a schematic structural diagram illustrating an apparatus for canceling coexistence interference according to an embodiment of the present application;
fig. 9B is a schematic structural diagram of another apparatus for canceling coexistence interference according to an embodiment of the present disclosure;
fig. 9C is a schematic structural diagram of a further apparatus for canceling coexistence interference according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of another apparatus for canceling coexistence interference according to an embodiment of the present application;
fig. 11 is a hardware entity diagram of an apparatus for canceling coexistence interference according to an embodiment of the present disclosure.
Detailed Description
The technical solution of the present application is further elaborated below with reference to the drawings and the embodiments.
In this embodiment, a communication network architecture is provided first, and fig. 1 is a schematic view of a composition structure of the network architecture in the embodiment of the present application, and as shown in fig. 1, the network architecture includes a UE 11 and a base station 12, where the UE 11 may send uplink data to the base station 12 through a 4G frequency band, and the base station 12 may send downlink data to the UE 11 through a 5G frequency band. In general, the UE 11 may be implemented as various mobile terminals having duplex communication capabilities, such as a mobile phone, a tablet computer, a personal digital assistant, a navigator, a digital phone, a video phone, a television, a sensing device, and so on.
The embodiment of the present application provides a method for eliminating coexistence interference, where the method is applied to a base station, and functions implemented by the method may be implemented by a processor in the base station calling a program code, where of course the program code may be stored in a computer storage medium, and as can be seen, the base station at least includes the processor and the storage medium.
Fig. 2A is a schematic flow chart illustrating an implementation of a method for canceling coexistence interference according to an embodiment of the present application, as shown in fig. 2A, the method includes:
s201, acquiring a preset uplink sub-band and a preset harmonic sub-band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-band is different from the frequency corresponding to any frequency point in the harmonic sub-band;
here, the number of the preset uplink sub-band and the preset harmonic sub-band is not limited, and there is at least one preset uplink sub-band and one preset harmonic sub-band, but a harmonic frequency (for example, a second harmonic frequency) corresponding to any frequency point in the uplink sub-band is different from a frequency corresponding to any frequency point in the harmonic sub-band, so that, on the UE side, when the UE transmits uplink data through a frequency point in the uplink sub-band, a transmission harmonic frequency (for example, a second harmonic frequency) of the frequency point is not within a reception frequency band (that is, the harmonic sub-band) of the UE, so that the UE does not interfere with the UE receiving downlink data transmitted by the base station through the harmonic sub-band.
S202, receiving uplink data sent by UE;
here, it should be noted that the timing relationship between steps S201 and S202 is not limited, and generally, before receiving uplink data sent by the UE, the base station already acquires a preset uplink sub-band and a preset downlink sub-band, for example, when the base station starts to operate after being powered on, the base station acquires the preset uplink sub-band and the preset downlink sub-band and stores them locally, and then allocates spectrum resources used for uplink data transmission and downlink data transmission based on the preset uplink sub-band and the preset downlink sub-band, so that the UE accessing the base station transmits uplink data through frequency points in the uplink sub-band, and the base station transmits downlink data through frequency points in the downlink sub-band, thereby avoiding interference of downlink data reception caused by uplink data transmission on the UE side.
S203, if the uplink data is transmitted through the frequency point in the uplink sub-band, the frequency point in the harmonic sub-band is utilized to transmit downlink data to the UE.
In the embodiment of the present application, a method for eliminating coexistence interference is provided, in which uplink data is transmitted through a frequency point in a preset uplink sub-band, and downlink data is transmitted through a frequency point in a preset harmonic sub-band, because a harmonic frequency corresponding to any frequency point in the uplink sub-band is different from a frequency corresponding to any frequency point in the harmonic sub-band, when a UE transmits data by using a frequency point in the uplink sub-band, the harmonic frequency of the frequency point does not affect the UE to receive the downlink data, that is, the UE does not affect the reception of the UE downlink data when transmitting the uplink data.
In other embodiments, for step S201, the acquiring preset uplink sub-band and harmonic sub-band includes the following steps:
s2011, if the harmonic frequency band corresponding to the uplink frequency band to be allocated belongs to the downlink frequency band to be allocated, dividing the uplink frequency band to obtain M uplink sub-frequency bands, and further obtaining M harmonic sub-frequency bands corresponding to the M uplink sub-frequency bands;
here, M is an integer of 1 or more, and generally, M is 2, 3, 4, or 5. However, theoretically, the larger M is, the better it is, because the obtained harmonic sub-band is narrower, the spectrum utilization rate of the downlink frequency band is higher when resource allocation is performed on the divided harmonic sub-band. For example, if the uplink frequency band is 1710MHz to 1785MHz, and the uplink frequency band is divided into two segments on average, the two obtained uplink sub-frequency bands are an a frequency band and a B frequency band, and the bandwidth of each uplink sub-frequency band is 37.5 MHz; correspondingly, the two obtained harmonic sub-bands are an a1 band and a B1 band, so as to avoid the problem of coexistence interference caused by the influence of the transmission of uplink data on the reception of downlink data on the UE side, in a cell covered by the same base station, if the a band is used for uplink data transmission, the downlink data transmission can only use the B1 band, and the a1 band cannot be used for downlink data transmission; similarly, if the B band is used for uplink data transmission, downlink data transmission can only use the a1 band, and downlink data transmission cannot be performed using the B1 band. It can be seen that, if the bandwidth of the divided uplink sub-band is narrower when frequency division is performed, that is, the number M of the uplink sub-bands is larger, the harmonic sub-band is correspondingly narrower, so that when spectrum resources are allocated in the same cell, the bandwidth of the harmonic sub-band that cannot be used for transmitting downlink data is narrower, thereby improving the frequency utilization rate.
In other embodiments, the uplink frequency band belongs to a frequency band used by a fourth generation mobile communication technology 4G, such as an LTE B3 frequency band, and the downlink frequency band belongs to a frequency band used by a fifth generation mobile communication technology 5G, such as an NR n78 frequency band. When a 4G network is networked with a 5G NR, if an LTE B3 frequency band is used as the uplink frequency band and an NR n78 frequency band is used as the downlink frequency band, then, on the UE side, when the UE transmits uplink data by using a frequency point of an LTE B3 frequency band, as shown in fig. 2B, a transmission harmonic frequency (e.g., a second harmonic frequency) corresponding to any frequency point of the LTE B3 frequency bands 1710MHz to 1785MHz is exactly between a receiving frequency band 3300MHz of the 5G NR and 3800MHz, that is, the second harmonic frequency band of the LTE B3 frequency bands 1710MHz to 1785MHz is the same as a frequency point of 3420MHz to 3570MHz in the receiving frequency band of the 5G NR, so that if downlink data received by the UE is transmitted through a certain frequency point of the 3420MHz to 3570MHz (e.g., a frequency point corresponding to 3420MHz), it may cause the UE to transmit uplink data by using a frequency point of the LTE B3 frequency band (e.g., a frequency point corresponding to 1710MHz), the second harmonic frequency corresponding to a frequency point in the LTE B3 frequency band (for example, the second harmonic frequency corresponding to 1710MHz is 3420MHz) is directly radiated by the internal 4G antenna and received by the 5G antenna, thereby interfering with the receiving performance of the 5G antenna.
As can be seen from the above analysis, in the above example, the uplink frequency band LTE B3 to be allocated is 1710MHz to 1785MHz, and the corresponding harmonic frequency band 3420MHz to 3570MHz is exactly 3420MHz to 3570MHz in the downlink frequency band 5G NR to be allocated, so that the LTE B3 frequency band may be divided to obtain M uplink sub-bands, and M harmonic sub-bands corresponding to the M uplink sub-bands are naturally obtained, for example, as shown in fig. 2C, the LTE B3 frequency band 1710MHz to 1785MHz is divided into two segments, that is, an a frequency band (i.e., 1710MHz to 1747.5MHz) and a B frequency band (i.e., 1747.5MHz to 1785MHz), and correspondingly, the obtained harmonic sub-bands are an a1 frequency band (i.e., 3420MHz to 3495MHz) and a B1 frequency band (i.e., 3495MHz to 3570 MHz);
as shown in fig. 2D, the LTE B3 frequency band 1710MHz to 1785MHz is divided into four segments, that is, the C frequency band (i.e., 1710MHz to 1728.75MHz), the D frequency band (i.e., 1728.75MHz to 1747.5MHz), the E frequency band (i.e., 1747.5MHz to 1765.75MHz), and the F frequency band (i.e., 1765.75MHz to 1785MHz), and correspondingly, the obtained harmonic sub-bands are the C1 frequency band (i.e., 3420MHz to 3457.5MHz), the D1 frequency band (i.e., 3457.5MHz to 3495MHz), the E1 frequency band (i.e., 3495MHz to 3531.5MHz), and the F1 frequency band (i.e., 3531.5MHz to 3570 MHz). Here, the uplink frequency band may be divided unequally, that is, the manner of dividing the uplink frequency band is not limited.
S2012, at least one uplink sub-band is obtained from the M uplink sub-bands, and other harmonic sub-bands except the harmonic sub-band corresponding to the at least one uplink sub-band are obtained from the M harmonic sub-bands.
For example, the M uplink sub-bands are the frequency band a and the frequency band B in the above example, and the corresponding M harmonic sub-bands are the frequency band a1 and the frequency band B1, and the two sets of data including the uplink sub-band and the harmonic sub-band are obtained as follows: the first group includes the a band and the B1 band, and the second group includes the B band and the a1 band, which are the results of step S2012; for another example, the M uplink sub-bands are the C band, the D band, the E band, and the F band in the above example, and the corresponding M harmonic sub-bands are the C1 band, the D1 band, the E1 band, and the F1 band, and the four sets of data including the uplink sub-band and the harmonic sub-band are obtained as follows: the first group includes a C band, a D1 band, an E1 band, and an F1 band, the second group includes a D band, a C1 band, an E1 band, and an F1 band, the third group includes an E band, a C1 band, a D1 band, and an F1 band, and the fourth group includes an F band, a C1 band, a D1 band, and an E1 band, which are the results of step S2012, but not limited to these four groups of data, for example, the data may be a combination of a C band, a D band, an E1 band, and an F1 band, that is, in the obtained uplink sub-band and harmonic sub-band, the harmonic frequency corresponding to any frequency point in the uplink sub-band and the frequency corresponding to any frequency point in the harmonic sub-band must be different, so that, in the cell covered by the base station, the obtained uplink sub-band is used for uplink data transmission, and the obtained harmonic sub-band is used for downlink data transmission, the sending of uplink data can be prevented from interfering with the receiving performance of downlink data at the UE side, so as to realize coexistence of the two networks.
An embodiment of the present application provides another method for canceling coexistence interference, where the method is applied to a base station, and fig. 3 is a schematic flow chart illustrating an implementation of another method for canceling coexistence interference according to an embodiment of the present application, and as shown in fig. 3, the method includes:
s301, acquiring preset uplink sub-bands and harmonic sub-bands, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-bands is different from the frequency corresponding to any frequency point in the harmonic sub-bands;
s302, detecting whether UE is accessed in a cell covered by the base station; if yes, executing step S303; otherwise, returning to execute the step S302;
s303, indicating the UE to transmit uplink data by using the frequency point in the uplink sub-frequency band;
actually, fig. 3 provides a technical scheme for statically allocating spectrum resources, that is, when performing communication networking, spectrum resources are already allocated to each base station, taking a combination including a C frequency band, a D1 frequency band, an E1 frequency band, and an F1 frequency band as an example, in a certain base station, transmission of uplink data is implemented through a frequency point in the C frequency band, and transmission of downlink data is implemented through any frequency point in the D1 frequency band, the E1 frequency band, and the F1 frequency band. And when the UE is detected to be accessed to the cell covered by the base station, the UE is indicated to transmit uplink data by using the frequency point in the C frequency band.
S304, receiving uplink data sent by the UE through the frequency point in the uplink sub-frequency band;
s305, sending downlink data to the UE by using the frequency points in the harmonic sub-frequency band.
Here, it should be noted that step S304 and step S305 have no timing relationship, that is, the base station transmits downlink data to the UE by using the frequency point in the harmonic sub-band regardless of whether uplink data transmitted by the UE is received.
An embodiment of the present application provides another method for canceling coexistence interference, where the method is applied to a base station, and fig. 4 is a schematic flow chart illustrating an implementation of another method for canceling coexistence interference according to an embodiment of the present application, and as shown in fig. 4, the method includes:
s401, acquiring a preset uplink sub-band and a preset harmonic sub-band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-band is different from the frequency corresponding to any frequency point in the harmonic sub-band;
s402, receiving uplink data sent by UE;
s403, determining a frequency point for transmitting the uplink data according to the uplink data sent by the UE;
s404, detecting whether the frequency point for transmitting the uplink data belongs to the uplink sub-frequency band; if yes, go to step S405; otherwise, go to step S406;
actually, fig. 4 provides a technical scheme for dynamically allocating spectrum resources, that is, when receiving uplink data sent by a UE, first determining whether a frequency point for transmitting the uplink data belongs to the uplink sub-band, and if so, the base station sends downlink data to the UE by using the frequency point in the harmonic sub-band, thereby avoiding that sending of the uplink data on the UE side affects the receiving performance of the downlink data.
S405, sending downlink data to the UE by using the frequency points in the harmonic sub-frequency band;
s406, sending downlink data to the UE by using the frequency point in the harmonic sub-band or the frequency points in other communication bands except the harmonic sub-band.
An embodiment of the present application provides another method for canceling coexistence interference, where the method is applied to a UE, and fig. 5 is a schematic flowchart illustrating an implementation of the another method for canceling coexistence interference according to the embodiment of the present application, and as shown in fig. 5, the method includes:
s501, sending uplink data to a base station through frequency points in an uplink sub-band based on a preset uplink sub-band and the preset harmonic sub-band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-band is different from the frequency corresponding to any frequency point in the harmonic sub-band;
generally, before performing step S501, the UE receives a communication instruction sent by a base station, where the communication instruction is used to instruct the UE to send uplink data to the base station through a frequency point in the uplink sub-band.
S502, receiving downlink data sent by the base station through the frequency points in the harmonic sub-frequency band.
Here, step S501 and step S502 do not have a timing relationship, and uplink data can be transmitted and the downlink data can be received.
Fig. 6 is a schematic flow chart illustrating an implementation of another method for canceling coexistence interference according to an embodiment of the present application, and as shown in fig. 6, the method includes:
s601, a base station acquires a preset uplink sub-band and a preset harmonic sub-band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-band is different from the frequency corresponding to any frequency point in the harmonic sub-band;
s602, when the base station detects that the UE is accessed to a cell covered by the base station, the base station sends a communication instruction to the UE, wherein the communication instruction is used for indicating the UE to send uplink data by using a frequency point in the uplink sub-frequency band;
s603, the UE receives the communication instruction;
s604, the UE sends uplink data to the base station by using the frequency point indicated by the communication instruction;
s605, the base station receives the uplink data;
s606, the base station sends downlink data to the UE by using the frequency points in the harmonic sub-frequency band;
s607, the UE receives the downlink data.
Similarly, step S604 and step S607 have no timing relationship, that is, the UE may receive the downlink data while transmitting the uplink data.
Fig. 7 is a schematic flow chart illustrating an implementation of another method for canceling coexistence interference according to an embodiment of the present application, and as shown in fig. 7, the method includes:
s701, a base station acquires a preset uplink sub-band and a preset harmonic sub-band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-band is different from the frequency corresponding to any frequency point in the harmonic sub-band;
s702, UE sends uplink data to a base station;
s703, the base station receives the uplink data;
s704, the base station determines a frequency point for transmitting the uplink data according to the uplink data;
s705, if the frequency point for transmitting the uplink data belongs to the uplink sub-band, transmitting downlink data to the UE by using the frequency point in the harmonic sub-band;
s706, the UE receives the downlink data.
The combination of the 4G network and the 5G NR inevitably causes the coexistence problem, which is mainly reflected in the UE side, as shown in fig. 8A, if the 4G band (e.g., LTE B3 band) is used as the transmission band of uplink data in the transmission link, the reception link, if the 5G band (for example, NR n78 band) is used as the receiving band of the downlink data, the coexistence problem is mainly manifested in that the second harmonic frequency 2f0 of the 4G band (i.e., the transmission frequency TX of the LTE antenna on the transmission link is 2f0) is directly radiated by the internal LTE antenna and received by the 5G NR antenna, the frequency band of the 5G NR communication (i.e. the receiving frequency RX of the 5G NR antenna on the receiving chain is 2f0) is exactly the frequency spectrum of the second harmonic frequency 2f0 of the 4G frequency band, thereby affecting the receiving performance of the 5G NR antenna. At present, for coexistence of the 4G network and the 5G network, the harmonic of the 4G spectrum is mainly attenuated by a hardware filter to realize coexistence of the two networks, as shown in fig. 8B, the main idea is to add a filter 801 between a matching circuit 802 and a matching circuit 803 on a transmission link to realize attenuation of a harmonic frequency 2f0, that is, to filter the harmonic frequency 2f0 by the filter 801, so as to achieve coexistence of the 4G and the 5G.
In addition, as shown in fig. 2B, this gives coexistence between typical LTE B3 and NR n78, where the harmonic frequencies of LTE B3 are well within the 5G NR receive band. This is a great risk to the coexistence problem when LTE B3 and NR n78 work together. The solution of the hardware path is mainly to realize harmonic filtering by adding a filter on the transmission link, but has the defect of increasing the cost.
Through careful analysis, the operating bandwidth of the LTE B3 at the UE's transmit link is between 1710MHz and 1785MHz, and the corresponding harmonic frequency 3420MHz to 3570MHz is within NR n78, 150 MHz. If the distributed switching is realized during data transmission, harmonic avoidance can be realized on the base station side, and the main idea is to separate the layout of the 4G base station from the layout of the 5G base station through an algorithm. As shown in fig. 2C, a concept of the present solution is given, where, at a base station side, an LTE B3 frequency band is segmented to obtain an a frequency band and a B frequency band, and naturally, the obtained harmonic sub-frequency band can also be segmented to obtain an a1 frequency band and a B1 frequency band, and if the a frequency band and the B1 frequency band are combined and the B frequency band and the a1 frequency band are combined, the cross interference avoidance of harmonics can be achieved, that is, the a frequency band is allocated to a 4G base station for transmission of uplink data, and the B1 frequency band is allocated to a 5G base station for transmission of downlink data, so that, at a UE side, when the UE transmits uplink data through the a frequency band, the harmonic frequency of the a frequency band does not interfere with the reception of signals of the B1 frequency band; similarly, as shown in fig. 2D, the LTE B3 frequency band is divided into 4 segments, i.e., a C frequency band, a D frequency band, an E frequency band, and an F frequency band, the naturally obtained harmonic sub-band can be divided into 4 segments, i.e., a C1 frequency band, a D1 frequency band, an E1 frequency band, and an F1 frequency band, the C frequency band, a D1 frequency band, an E1 frequency band, and an F1 frequency band are combined, i.e., C/D1\ E1\ F1, the D frequency band, the C1 frequency band, the E1 frequency band, and the F1 frequency band are combined, i.e., E/C1\ D1\ F1 frequency band is combined, the F frequency band, the C1 frequency band, the D1 frequency band, and the E1 frequency band are combined, i.e., the F/C1, the E D1, the E1 frequency band, the e., the E/C1, the e., the E1 frequency band, the data is combined based on a certain data transmission of the downlink sub-band, the data transmission is performed by using the data transmission sub-band, the data transmission of the data transmission sub-band, the data transmission of the data transmission sub-band, the data transmission method of the uplink sub-band, in this way, since the harmonic sub-band for transmitting downlink data is different from the harmonic sub-band corresponding to the sub-band of LTE B3 for transmitting uplink data, the harmonic point can be perfectly avoided, thereby avoiding coexistence interference. For example, based on the combination C/D1\ E1\ F1, any frequency point in the C band is used for uplink data transmission, and any frequency point in the D1 band, the E1 band or the F1 band is used for downlink data transmission, and since the frequency of the frequency point used for downlink data transmission is different from the harmonic frequency corresponding to the frequency point of the C band used for uplink data transmission, the transmission of uplink data at the UE side does not affect the reception of downlink data. It should be noted that similar splitting schemes can implement split networking, and this is not illustrated here.
Based on the foregoing embodiments, the present application provides an apparatus for eliminating coexistence interference, where the apparatus includes modules and units included in the modules, and the apparatus may be implemented by a processor in a device; of course, the implementation can also be realized through a specific logic circuit; in implementation, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.
Fig. 9A is a schematic structural diagram of a device for eliminating coexistence interference according to an embodiment of the present application, and as shown in fig. 9A, the device 900 includes a frequency band obtaining module 901, a first receiving module 902, and a first sending module 903, where:
a frequency band obtaining module 901 configured to obtain a preset uplink sub-frequency band and a preset harmonic sub-frequency band, where a harmonic frequency corresponding to any frequency point in the uplink sub-frequency band is different from a frequency corresponding to any frequency point in the harmonic sub-frequency band;
a first receiving module 902, configured to receive uplink data sent by a UE;
a first sending module 903, configured to send downlink data to the UE by using the frequency points in the harmonic sub-band if the uplink data is transmitted through the frequency points in the uplink sub-band.
In other embodiments, as shown in fig. 9B, the apparatus further comprises:
an indicating module 904, configured to indicate the UE to send the uplink data by using the frequency point in the uplink sub-band when it is detected that the UE accesses the cell covered by the base station.
In other embodiments, as shown in fig. 9C, the apparatus further comprises:
a determining module 905 configured to determine, according to uplink data sent by the UE, a frequency point for transmitting the uplink data; and if the frequency point for transmitting the uplink data belongs to the uplink sub-frequency band, determining that the uplink data is transmitted through the frequency point in the uplink sub-frequency band.
In other embodiments, the frequency band obtaining module 901 includes:
a frequency band dividing unit 9011, configured to divide the uplink frequency band to obtain M uplink sub-frequency bands and further obtain M harmonic sub-frequency bands corresponding to the M uplink sub-frequency bands, if the harmonic frequency band corresponding to the uplink frequency band to be allocated belongs to the downlink frequency band to be allocated;
a frequency band obtaining unit 9012, configured to obtain at least one uplink sub-frequency band from the M uplink sub-frequency bands, and obtain, from the M harmonic sub-frequency bands, other harmonic sub-frequency bands except for the harmonic sub-frequency band corresponding to the at least one uplink sub-frequency band.
In other embodiments, the uplink frequency band belongs to a frequency band used by a fourth generation mobile communication technology 4G, and the downlink frequency band belongs to a frequency band used by a fifth generation mobile communication technology 5G.
Fig. 10 is a schematic structural diagram of a further apparatus for canceling coexistence interference according to an embodiment of the present application, and as shown in fig. 10, the apparatus 100 includes a second sending module 101 and a second receiving module 102; wherein:
a second sending module 101, configured to send uplink data to a base station through a frequency point in an uplink sub-band based on a preset uplink sub-band and the preset harmonic sub-band, where a harmonic frequency corresponding to any frequency point in the uplink sub-band is different from a frequency corresponding to any frequency point in the harmonic sub-band;
a second receiving module 102, configured to receive downlink data sent by the base station through a frequency point in the harmonic sub-band.
The above description of the apparatus embodiments, similar to the above description of the method embodiments, has similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
It should be noted that, in the embodiment of the present application, if the method for eliminating coexistence interference is implemented in the form of a software functional module and is sold or used as a standalone product, it may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a base station or a UE to perform all or part of the methods described in the corresponding embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.
Correspondingly, an embodiment of the present invention provides an apparatus for canceling coexistence interference, and fig. 11 is a schematic diagram of a hardware entity of the apparatus for canceling coexistence interference according to the embodiment of the present invention, as shown in fig. 11, the hardware entity of the apparatus 110 for canceling coexistence interference includes: the apparatus includes a memory 111 and a processor 112, the memory 111 stores a computer program operable on the processor 112, and the processor 112 executes the program to implement the steps in the method for canceling coexistence interference provided in the above embodiments.
The Memory 111 is configured to store instructions and applications executable by the processor 112, and may also buffer data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or already processed by the processor 112 and modules in the device 110, and may be implemented by a FLASH Memory (FLASH) or a Random Access Memory (RAM).
Correspondingly, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps in the method for canceling coexistence interference provided in the foregoing embodiments.
Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in embodiments of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a base station or a UE to perform all or part of the methods described in the corresponding embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A method for canceling coexistence interference, the method being applied to a base station, the method comprising:
acquiring preset uplink sub-bands and preset harmonic sub-bands, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-bands is different from the frequency corresponding to any frequency point in the harmonic sub-bands; wherein, the acquiring of the preset uplink sub-band and the preset harmonic sub-band comprises: if the harmonic frequency band corresponding to the uplink frequency band to be allocated belongs to the downlink frequency band to be allocated, dividing the uplink frequency band to obtain M uplink sub-frequency bands, and further obtaining M harmonic sub-frequency bands corresponding to the M uplink sub-frequency bands; acquiring at least one uplink sub-band from the M uplink sub-bands, and acquiring other harmonic sub-bands except the harmonic sub-band corresponding to the at least one uplink sub-band from the M harmonic sub-bands as bands for transmitting downlink data;
receiving uplink data sent by UE;
and if the uplink data is transmitted through the frequency points in the uplink sub-frequency band, transmitting the downlink data to the UE by using the frequency points in the harmonic sub-frequency band.
2. The method of claim 1, wherein before receiving uplink data transmitted by the UE, the method further comprises:
and when the UE is detected to be accessed to the cell covered by the base station, indicating the UE to transmit the uplink data by using the frequency point in the uplink sub-frequency band.
3. The method of claim 1, wherein after the receiving uplink data transmitted by the UE, the method further comprises:
determining a frequency point for transmitting the uplink data according to the uplink data sent by the UE;
and if the frequency point for transmitting the uplink data belongs to the uplink sub-frequency band, determining that the uplink data is transmitted through the frequency point in the uplink sub-frequency band.
4. The method of claim 1, wherein the uplink frequency band belongs to a frequency band used by a fourth generation mobile communication technology 4G, and wherein the downlink frequency band belongs to a frequency band used by a fifth generation mobile communication technology 5G.
5. A method for canceling coexistence interference, the method being applied to a UE and comprising:
based on preset uplink sub-bands and preset harmonic sub-bands, the harmonic frequency corresponding to any frequency point in the uplink sub-bands is different from the frequency corresponding to any frequency point in the harmonic sub-bands, and uplink data are sent to a base station through the frequency points in the uplink sub-bands;
receiving downlink data sent by the base station through the frequency points in the harmonic sub-frequency band; wherein, the harmonic sub-band for transmitting the downlink data is configured by the base station by dividing the uplink frequency band when the harmonic frequency band corresponding to the uplink frequency band to be allocated belongs to the downlink frequency band to be allocated, and the process includes: dividing the uplink frequency band to obtain M uplink sub-frequency bands, and further obtaining M harmonic sub-frequency bands corresponding to the M uplink sub-frequency bands; and acquiring at least one uplink sub-band from the M uplink sub-bands, and acquiring other harmonic sub-bands except the harmonic sub-band corresponding to the at least one uplink sub-band from the M harmonic sub-bands as the bands for transmitting the downlink data.
6. An apparatus for canceling coexistence interference, comprising:
the frequency band acquisition module is configured to acquire a preset uplink sub-frequency band and a preset harmonic sub-frequency band, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-frequency band is different from the frequency corresponding to any frequency point in the harmonic sub-frequency band; wherein, the acquiring of the preset uplink sub-band and the preset harmonic sub-band comprises: if the harmonic frequency band corresponding to the uplink frequency band to be allocated belongs to the downlink frequency band to be allocated, dividing the uplink frequency band to obtain M uplink sub-frequency bands, and further obtaining M harmonic sub-frequency bands corresponding to the M uplink sub-frequency bands; acquiring at least one uplink sub-band from the M uplink sub-bands, and acquiring other harmonic sub-bands except the harmonic sub-band corresponding to the at least one uplink sub-band from the M harmonic sub-bands as bands for transmitting downlink data;
a first receiving module configured to receive uplink data sent by the UE;
a first sending module, configured to send the downlink data to the UE by using the frequency points in the harmonic sub-band if the uplink data is transmitted through the frequency points in the uplink sub-band.
7. An apparatus for canceling coexistence interference, comprising:
the second sending module is configured to send uplink data to the base station through the frequency points in the uplink sub-frequency band based on preset uplink sub-frequency bands and preset harmonic sub-frequency bands, wherein the harmonic frequency corresponding to any frequency point in the uplink sub-frequency bands is different from the frequency corresponding to any frequency point in the harmonic sub-frequency bands;
and the second receiving module is configured to receive downlink data sent by the base station through the frequency point in the harmonic sub-band.
8. An apparatus for canceling coexistence interference, comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor implements the steps of the method for canceling coexistence interference according to any one of claims 1 to 4 or 5 when executing the program.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for canceling coexistence interference according to any one of claims 1 to 4 or 5.
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| CN111698686B (en) * | 2019-03-11 | 2023-01-13 | 中国移动通信有限公司研究院 | Wireless communication method and frequency allocation device |
| CN109951207A (en) * | 2019-03-20 | 2019-06-28 | Oppo广东移动通信有限公司 | Radio frequency system and electronic equipment |
| CN109889216B (en) * | 2019-03-25 | 2021-04-02 | Oppo广东移动通信有限公司 | Radio frequency front-end device and terminal |
| CN110299931B (en) * | 2019-06-25 | 2021-06-04 | Oppo广东移动通信有限公司 | Interference control method and related product |
| CN110366275A (en) * | 2019-07-22 | 2019-10-22 | 维沃移动通信有限公司 | A kind of method and terminal reducing multiple network mutual interference |
| CN111698187A (en) | 2019-12-13 | 2020-09-22 | 广东工业大学 | Frequency division multiple access communication method based on harmonic modulation technology |
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| CN114554564A (en) * | 2020-11-26 | 2022-05-27 | 华为技术有限公司 | Network device, user terminal, chip, wireless communication system and method |
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