CN112532338A - Anti-interference method, device and system for communication network - Google Patents
Anti-interference method, device and system for communication network Download PDFInfo
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- H—ELECTRICITY
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- H04K3/84—Jamming or countermeasure characterized by its function related to preventing electromagnetic interference in petrol station, hospital, plane or cinema
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Abstract
The invention discloses an anti-interference method for a communication network, which comprises the following steps: acquiring preset adjusting parameters; adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority; and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor. Therefore, after the path loss compensation factor is adjusted, the uplink power of the aviation UE is adjusted, namely the uplink power of the aviation UE at a certain height is reduced, and the interference of the aviation UE on an uplink between cells is further reduced. In addition, by means of the embodiment, under the condition that the aviation UE has the right of path loss factor adjustment, the aviation UE can adjust the path loss compensation factor by itself without complex signaling interaction between the base station and the aviation UE or adjustment of the path loss compensation factor by the base station, so that the implementation is simple, and the overhead of the base station and the aviation UE is reduced.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to an anti-interference method, apparatus, and system for a communication network.
Background
The unmanned aerial vehicle needs to be accessed to the network in the using process, namely, the unmanned aerial vehicle is used as aviation UE to be accessed to the network, compared with ground UE, the public coverage range of the aviation UE across cells is obviously increased, and the power of the unmanned aerial vehicle is also increased along with the increase of the height of the unmanned aerial vehicle.
Disclosure of Invention
In view of this, the embodiment of the present invention discloses an anti-interference method, an apparatus, and a system for a communication network, which reduce interference of aviation UE to uplink of an adjacent cell and improve network communication quality of the adjacent cell of the aviation UE by reducing uplink power of the aviation UE.
The embodiment of the invention discloses an anti-interference method for a communication network, which comprises the following steps:
acquiring preset adjusting parameters;
adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority;
and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
Optionally, the method further includes:
receiving a path loss compensation factor adjustment mark sent by a base station; and the path loss compensation factor adjusting mark indicates that the aviation UE has path loss compensation factor adjusting authority.
Optionally, under the condition that the adjustment parameter includes the altitude of the aviation UE or the path transmission mode of the aviation UE:
the preset adjustment conditions include:
the altitude of the aviation UE has changed;
or
The path transmission mode of the wireless signal where the aviation UE is located is changed; the path transmission modes include line-of-sight transmission of LOS radio signals and non-line-of-sight transmission of NOLS radio signals.
Optionally, the adjusting the path loss compensation factor includes:
determining that the aviation UE is in an LOS scene or an NLOS scene;
when the aviation UE is in an LOS scene, acquiring each compensation parameter in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and when the aviation UE is in the NLOS scene, acquiring the height of the current aviation UE and each parameter in the NLOS scene, and calculating a path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
Optionally, each compensation parameter in the LOS scenario includes:
the compensation amount of the path LOSs and the path LOSs compensation parameter value of the aviation UE in the LOS scene.
Optionally, each compensation parameter in the NLOS scenario includes:
the threshold value and the altitude threshold value of the path loss compensation parameter and the compensation amount of the path loss of the aviation UE in the NLOS scene.
Optionally, the path loss compensation parameter is calculated by the base station;
or the path loss compensation parameter is calculated by the aviation UE.
The embodiment of the invention also discloses an anti-interference device of the communication network, which comprises:
the device comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring preset adjustment parameters;
the system comprises a path loss compensation factor adjusting unit, a path loss compensation factor adjusting unit and a path loss compensation factor adjusting unit, wherein the path loss compensation factor adjusting unit is used for adjusting a path loss compensation factor under the condition that a preset adjusting parameter accords with a preset adjusting condition and the aviation UE has a path loss compensation factor adjusting authority;
and the uplink power adjusting unit is used for reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
Optionally, the path loss compensation factor adjusting unit includes:
the scene determining unit is used for determining that the aviation UE is in an LOS scene or an NLOS scene;
the first path LOSs compensation factor adjusting subunit is used for acquiring each compensation parameter in an LOS scene when the aviation UE is in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and the first path loss compensation factor adjusting subunit is used for acquiring the height of the current aviation UE and each parameter in the NLOS scene when the aviation UE is in the NLOS scene, and calculating the path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
The embodiment of the invention also discloses an anti-interference data transmission system of the communication network, which comprises:
a base station and an aviation UE;
the base station is used for sending a path loss compensation factor adjustment mark to the aviation UE; the path loss compensation factor adjustment mark indicates that the aviation UE has path loss compensation factor adjustment permission;
the aviation UE is used for executing the anti-interference method of the communication network.
The invention also discloses aviation UE, which is characterized by comprising the following components:
a processor and a memory;
wherein the processor is configured to execute a program stored in the memory;
the memory is used for storing a program for executing the above method for protecting the communication network from interference.
The embodiment of the invention discloses an anti-interference method for a communication network, which comprises the following steps: acquiring preset adjusting parameters; adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority; and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor. Therefore, after the path loss compensation factor is adjusted, the uplink power of the aviation UE is adjusted, namely the uplink power of the aviation UE at a certain height is reduced, and the interference of the aviation UE on an uplink between cells is further reduced. In addition, by means of the embodiment, under the condition that the aviation UE has the right of path loss factor adjustment, the aviation UE can adjust the path loss compensation factor by itself without complex signaling interaction between the base station and the aviation UE or adjustment of the path loss compensation factor by the base station, so that the implementation is simple, and the overhead of the base station and the aviation UE is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for interference resistance of a communication network according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for adjusting a path loss compensation factor according to an embodiment of the present invention;
fig. 3 is an interaction diagram illustrating a method for interference resistance of communication according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram illustrating an apparatus for interference rejection of a communication network according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an aviation UE according to an embodiment of the present invention;
fig. 6 shows a schematic structural diagram of a data transmission system of a communication network resistant to interference according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The applicant finds that, when the aviation UE is in a high-altitude flight state, interference may be generated between cells serving the ground UE and the aviation UE, specifically, interference may be generated between uplink between cells adjacent to the aviation UE, and as the altitude of the aviation UE is continuously increased, the uplink power of the aviation UE is also continuously increased, and thus, the generated interference is also stronger and stronger.
In this case, in order to reduce interference, the applicant finds that it is possible to reduce the interference caused by the aviation UE to the uplink of the neighboring cell by reducing the uplink power of the aviation UE.
The transmission power of the UE is related to the path loss and the path loss compensation factor, the path loss compensation factor belongs to cell-level parameters, namely the path loss compensation factor is the same for the aviation UE and the ground UE, but the path loss compensation factor of the aviation UE can be adjusted due to the fact that wireless channels of the aviation UE and the ground UE are different, and therefore the purpose of reducing uplink power of the aviation UE is achieved.
Thus, the applicant has found that the adjustment of the uplink power of the aviation UE can be achieved by the following procedure: the method comprises the steps that firstly, a base station issues a request for measuring the height of the base station to aviation UE, the aviation UE measures the height of the base station and then sends the measured height of the aviation UE to the base station, the base station calculates a path loss compensation factor based on the height of the aviation UE and sends the path loss compensation factor to the aviation UE, and the aviation UE adjusts uplink power based on the path loss compensation factor.
Although the uplink power of the aviation UE can be adjusted through the interaction between the base station and the aviation UE, in the adjustment process, complex signaling interaction needs to be performed between the base station and the UE, and if the height of the aviation UE changes constantly, frequent interaction needs to be performed between the aviation UE and the base station, so that not only is the implementation complex, but also the overhead of the base station and the aviation UE is high, and the power consumption is high.
Therefore, in order to reduce the overhead of the aviation UE and the base station and reduce the power consumption of the base station and the aviation UE on the premise of reducing the interference of the aviation UE on the adjacent cells, the invention simplifies the interaction process of the base station and the aviation UE, and adjusts the uplink power of the aviation UE by calculating the path loss compensation factor by the aviation UE, wherein the specific adjustment process is as follows:
acquiring preset adjusting parameters; adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority; and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor. Through the adjustment, under the condition that the aviation UE has the adjustment permission of the path loss factor, the aviation UE can automatically adjust the uplink power based on the change of the aviation UE, so that complex signaling exchange between the base station and the aviation UE is not needed, the method is simple to realize, the expenses of the base station and the aviation UE are reduced, the power consumption is reduced, and the problem of reducing the communication interference of adjacent cells of the aviation UE is also solved.
Referring to fig. 1, a flowchart of a method for interference resistance of a communication network according to an embodiment of the present invention is shown, where the method includes:
s101: acquiring preset adjusting parameters;
in this embodiment, the aviation UE may continuously monitor the adjustment parameter, and when the adjustment parameter changes, it is likely that interference may be generated on an uplink between adjacent cells of the aviation UE, so that the communication quality between the UE and the base station in the adjacent cells may be affected.
Wherein, the preset adjustment parameters may include: the altitude of the aviation UE or the path transmission mode of the aviation UE. The path transmission mode of the aviation UE comprises two modes: LOS (line of sight, Chinese: line of sight transmission of radio signals) and NOLS (not line of sight, Chinese: non-line of sight transmission of radio signals).
S102: and adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with the preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment permission.
In this embodiment, after the aviation UE detects the adjustment parameter, it is determined whether the adjustment parameter meets a preset adjustment condition.
The preset conditions comprise the following two conditions:
the method comprises the following steps that firstly, the height of aviation UE is changed;
the second condition is that the path transmission mode of the wireless signal where the aviation UE is located is changed; wherein, the path transmission mode includes: line-of-sight transmission of LOS radio signals and non-line-of-sight transmission of NLOS radio signals.
When any one of the above conditions is satisfied, it indicates that the preset adjustment parameter meets the preset adjustment condition.
In this embodiment, in order to reduce the number of interactions between the aviation UE and the base station, the aviation UE may directly adjust the path loss compensation factor without sending information to the base station when detecting that the preset adjustment parameter meets the preset adjustment condition.
In order to realize that the aviation UE can directly adjust the path loss compensation factor, in this embodiment, an adjustment authority is set in the aviation UE, and the aviation UE can adjust the path loss compensation factor when the aviation UE meets the adjustment authority.
In this embodiment, the condition that the aviation UE is started to have the right to adjust the path loss compensation factor is that the aviation UE has a path loss compensation factor adjustment flag. The path loss compensation factor adjustment flag may be sent by the base station to the aviation UE. In one embodiment, the execution process of the aviation UE after acquiring the preset adjustment parameters includes:
judging whether the preset adjusting parameters meet preset adjusting conditions or not;
if the preset adjusting parameters accord with preset adjusting conditions, judging whether the aviation UE has a path loss compensation factor adjusting authority;
and if the aviation UE has the adjusting condition of the path loss compensation factor, adjusting the path loss compensation factor.
In this embodiment, when adjusting the path loss compensation factor, the path loss compensation factor needs to be calculated based on some compensation parameters, where the path loss compensation factor includes: the compensation amount of the path LOSs, the path LOSs compensation parameter value of the aviation UE in the LOS scene, the threshold value and the altitude threshold value of the path LOSs compensation parameter of the aviation UE in the NLOS scene and the like.
The adjustment of the path LOSs compensation factor needs to calculate the path LOSs compensation factor based on whether the current altitude of the aviation UE is in an LOS scene or an NLOS scene, and the specific calculation method of the path LOSs compensation factor will be described in detail below, which is not described in detail in this embodiment.
S104: and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
In this embodiment, after the path loss compensation factor is obtained through calculation, the uplink power of the aviation UE may be adjusted based on the path loss compensation factor, so as to reduce the uplink power of the aviation UE.
For example, the following steps are carried out: the uplink power of the aviation UE can be calculated by the following formula 1):
1)
wherein, PPUSCH,C(i) Representing the uplink power of the aviation UE;
PCMAX，c(i) represents the maximum transmit power of the aviation UE;
MPSUCH，c(i) indicating the number of RBs used for PUSCH transmission in the subframe i;
PO_PUSCH，c(j)＝PO_NOMINAI(j)+PO_UE_PUSCH (j)；
wherein, PONOMINAL PUSCH (j) is a cell-specific parameter, POUE pusch (j) is a UE-specific parameter, both indicated by higher layer signaling, which can be used to set different values for different uplink transmission packets. In addition, the value of the parameter j is related to the uplink transmitted data packet, and when the semi-persistent allowed data packet is transmitted, j is 0; when transmitting the data packet of the dynamic scheduling permission, j is 1; when transmitting the data packet of the random access response grant, j is 2.
ac(j) Is a cell-specific compensation for path loss;
for example, the following steps are carried out: when j is 0 or 1, a (j) is {0,0.4,0.5,0.6,0.7,0.8,0.9,1}, which is controlled by higher layer signaling. When j is 2, (j) is 1. In this document, j is 1, which adopts a dynamic scheduling condition, ac(j) Assume 0.5.
PLcIs based on the UE's estimate of the downlink, resulting open loop path loss compensation.
ΔTF，c(i) Is a MCS-based power adjustment value. MCS-based power adjustments may cause the UE to dynamically adjust the corresponding transmit power spectral density according to the selected MCS. The MCS of the UE is scheduled by the eNodeB, and the transmitting power spectral density of the UE can be adjusted quickly by setting the transmitting MCS of the UE, so that the effect similar to quick power control is achieved.
fc(i) Is the adjustment value of the current power control of the PUSCH, and the parameter is adjusted according to the TPC command on the PDCCH.
Δa(h, isLos) represents a path loss compensation factor.
In the embodiment, preset adjustment parameters are obtained; adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority; and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor. Therefore, after the path loss compensation factor is adjusted, the uplink power of the aviation UE is adjusted, namely the uplink power of the aviation UE at a certain height is reduced, and the interference of the aviation UE on an uplink between cells is further reduced. In addition, by means of the embodiment, under the condition that the aviation UE has the right of path loss factor adjustment, the aviation UE can adjust the path loss compensation factor by itself without complex signaling interaction between the base station and the aviation UE or adjustment of the path loss compensation factor by the base station, so that the implementation is simple, and the overhead of the base station and the aviation UE is reduced.
Referring to fig. 2, a schematic flow chart of a method for adjusting a path loss compensation factor according to an embodiment of the present invention is shown, where in this embodiment, the method includes:
s201: determining that the aviation UE is in an LOS scene or an NLOS scene;
in this embodiment, the aviation UE corresponds to different adjustment methods of the path loss compensation factor in different wireless channel states.
S202: when the aviation UE is in an LOS scene, acquiring each compensation parameter in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
in this embodiment, in an LOS scene, the path LOSs compensation factor may be calculated according to the compensation amount of the path LOSs and the path LOSs compensation parameter value of the aviation UE in the LOS scene.
S203: and when the aviation UE is in the NLOS scene, acquiring the height of the current aviation UE and each parameter in the NLOS scene, and calculating a path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
In this embodiment, when the aviation UE is in an NLOS scene, a calculation method for determining the altitude based on the aviation UE is required, which specifically includes:
when the height of the aviation UE is greater than or equal to a preset middle value of a height threshold, calculating a path loss compensation factor of the aviation UE based on an upper limit value of a path loss compensation parameter and a path loss compensation quantity of the aviation UE in the NOLS scene;
when the height of the aviation UE is greater than or equal to the lower limit value of a preset height threshold and less than the middle value of the preset height threshold, calculating a path loss compensation factor of the aviation UE based on the middle value of the path loss compensation parameter threshold and the compensation quantity of the path loss of the aviation UE in the NLOS scene;
and when the height of the aviation UE is smaller than the lower limit value of the preset height threshold, the path loss compensation factor is zero.
For example, the path loss compensation factor may be calculated by the following formula:
the ISLOS is 1, the aviation UE is in an LOS scene, and the ISLOS is 0, the aviation UE is in an NLOS scene;
aLOSrepresenting a path LOSs compensation parameter value of the aviation UE in an LOS scene;
ac(j) a compensation quantity representing a path loss;
h represents an altitude value of the aviation UE;
Hmedinmrepresenting a median value of a preset altitude threshold;
HLOWa lower limit value representing a preset height threshold;
It should be noted that the path loss compensation parameter may be sent by the base station to the aviation UE, or may be calculated by the aviation UE.
In the embodiment, the aviation UE can automatically adjust the path loss compensation factor without performing complex communication with the base station, so that the implementation is simple, and the expenses of the base station and the aviation UE are reduced.
Referring to fig. 3, an interaction diagram of a method for resisting interference in communication according to an embodiment of the present invention is shown, and in this embodiment, the method includes:
s301: the base station sends a path loss compensation factor adjustment mark to the aviation UE; the path loss compensation factor adjustment mark indicates that the aviation UE has path loss compensation factor adjustment permission;
s302: acquiring preset adjusting parameters by aviation UE;
s302 in this embodiment is the same as S101 described above, and details are not described again in this embodiment.
S303: the method comprises the steps that the aviation UE adjusts a path loss compensation factor under the condition that preset adjustment parameters meet preset adjustment conditions and the aviation UE has a path loss compensation factor adjustment authority;
s303 in this embodiment is the same as S102 described above, and details are not described again in this embodiment.
S304: and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
S304 in this embodiment is the same as S103 described above, and details are not described again in this embodiment.
By the method of the embodiment, the base station only needs to interact with the aviation UE once, that is, the route loss compensation factor adjustment mark is sent to the aviation UE, and then the aviation UE has the route loss compensation factor adjustment authority. Under the condition that the aviation UE has the circuit loss factor adjusting authority, the aviation UE can automatically adjust the circuit loss compensation factor without complex signaling interaction between the base station and the aviation UE or adjusting the circuit loss compensation factor through the base station, so that the method is simple to implement and reduces the expenses of the base station and the aviation UE.
Referring to fig. 4, a schematic structural diagram of an apparatus for interference rejection of a communication network according to an embodiment of the present invention is shown, where in this embodiment, the apparatus includes:
an obtaining unit 401, configured to obtain a preset adjustment parameter;
a path loss compensation factor adjusting unit 402, configured to adjust a path loss compensation factor when a preset adjustment parameter meets a preset adjustment condition and the aviation UE has a path loss compensation factor adjustment permission;
an uplink power adjustment unit 403, configured to reduce the uplink power of the aviation UE based on the adjusted path loss compensation factor.
Optionally, the method further includes:
a receiving unit, configured to receive a path loss compensation factor adjustment flag sent by a base station; and the path loss compensation factor adjusting mark indicates that the aviation UE has path loss compensation factor adjusting authority.
Optionally, under the condition that the adjustment parameter includes the altitude of the aviation UE or the path transmission mode of the aviation UE:
the preset adjustment conditions include:
the altitude of the aviation UE has changed;
or
The path transmission mode of the wireless signal where the aviation UE is located is changed; the path transmission modes include line-of-sight transmission of LOS radio signals and non-line-of-sight transmission of NOLS radio signals.
Optionally, the path loss compensation factor adjusting unit includes:
the scene determining unit is used for determining that the aviation UE is in an LOS scene or an NLOS scene;
the first path LOSs compensation factor adjusting subunit is used for acquiring each compensation parameter in an LOS scene when the aviation UE is in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and the first path loss compensation factor adjusting subunit is used for acquiring the height of the current aviation UE and each parameter in the NLOS scene when the aviation UE is in the NLOS scene, and calculating the path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
Optionally, each compensation parameter in the LOS scenario includes:
the compensation amount of the path LOSs and the path LOSs compensation parameter value of the aviation UE in the LOS scene.
Optionally, each compensation parameter in the NLOS scenario includes:
the threshold value and the altitude threshold value of the path loss compensation parameter and the compensation amount of the path loss of the aviation UE in the NLOS scene.
Optionally, the path loss compensation parameter is calculated by the base station;
or the path loss compensation parameter is calculated by the aviation UE.
By the device of the embodiment, after the path loss compensation factor is adjusted, the uplink power of the aviation UE is adjusted, that is, the uplink power of the aviation UE at a certain height is reduced, and then the interference of the aviation UE on an uplink between cells is reduced. In addition, by means of the embodiment, under the condition that the aviation UE has the right of path loss factor adjustment, the aviation UE can adjust the path loss compensation factor by itself without complex signaling interaction between the base station and the aviation UE or adjustment of the path loss compensation factor by the base station, so that the implementation is simple, and the overhead of the base station and the aviation UE is reduced.
Referring to fig. 5, a schematic structural diagram of an aviation UE according to an embodiment of the present invention is shown, where the aviation UE includes:
a processor 501 and a memory 502;
wherein the processor is configured to execute a program stored in the memory;
the memory is configured to store a program configured to perform:
acquiring preset adjusting parameters;
adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority;
and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
Optionally, the method further includes:
receiving a path loss compensation factor adjustment mark sent by a base station; and the path loss compensation factor adjusting mark indicates that the aviation UE has path loss compensation factor adjusting authority.
Optionally, under the condition that the adjustment parameter includes the altitude of the aviation UE or the path transmission mode of the aviation UE:
the preset adjustment conditions include:
the altitude of the aviation UE has changed;
or
The path transmission mode of the wireless signal where the aviation UE is located is changed; the path transmission modes include line-of-sight transmission of LOS radio signals and non-line-of-sight transmission of NOLS radio signals.
Optionally, the adjusting the path loss compensation factor includes:
determining that the aviation UE is in an LOS scene or an NLOS scene;
when the aviation UE is in an LOS scene, acquiring each compensation parameter in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and when the aviation UE is in the NLOS scene, acquiring the height of the current aviation UE and each parameter in the NLOS scene, and calculating a path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
Optionally, each compensation parameter in the LOS scenario includes:
the compensation amount of the path LOSs and the path LOSs compensation parameter value of the aviation UE in the LOS scene.
Optionally, each compensation parameter in the NLOS scenario includes:
the threshold value and the altitude threshold value of the path loss compensation parameter and the compensation amount of the path loss of the aviation UE in the NLOS scene.
Optionally, the path loss compensation parameter is calculated by the base station;
or the path loss compensation parameter is calculated by the aviation UE.
Through the terminal of the embodiment, after the path loss compensation factor is adjusted, the uplink power of the aviation UE is adjusted, that is, the uplink power of the aviation UE at a certain height is reduced, and then the interference of the aviation UE on an uplink between cells is reduced. In addition, by means of the embodiment, under the condition that the aviation UE has the right of path loss factor adjustment, the aviation UE can adjust the path loss compensation factor by itself without complex signaling interaction between the base station and the aviation UE or adjustment of the path loss compensation factor by the base station, so that the implementation is simple, and the overhead of the base station and the aviation UE is reduced.
Referring to fig. 6, a schematic structural diagram of an anti-interference system of a communication network according to an embodiment of the present invention is shown, where in this embodiment, the system includes:
a base station 601 and an aviation UE 602;
the base station is used for sending a path loss compensation factor adjustment mark to the aviation UE; the path loss compensation factor adjustment mark indicates that the aviation UE has path loss compensation factor adjustment permission;
the aviation UE is used for acquiring preset adjusting parameters;
adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority;
and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
Optionally, the method further includes:
receiving a path loss compensation factor adjustment mark sent by a base station; and the path loss compensation factor adjusting mark indicates that the aviation UE has path loss compensation factor adjusting authority.
Optionally, under the condition that the adjustment parameter includes the altitude of the aviation UE or the path transmission mode of the aviation UE:
the preset adjustment conditions include:
the altitude of the aviation UE has changed;
or
The path transmission mode of the wireless signal where the aviation UE is located is changed; the path transmission modes include line-of-sight transmission of LOS radio signals and non-line-of-sight transmission of NOLS radio signals.
Optionally, the adjusting the path loss compensation factor includes:
determining that the aviation UE is in an LOS scene or an NLOS scene;
when the aviation UE is in an LOS scene, acquiring each compensation parameter in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and when the aviation UE is in the NLOS scene, acquiring the height of the current aviation UE and each parameter in the NLOS scene, and calculating a path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
Optionally, each compensation parameter in the LOS scenario includes:
the compensation amount of the path LOSs and the path LOSs compensation parameter value of the aviation UE in the LOS scene.
Optionally, each compensation parameter in the NLOS scenario includes:
the threshold value and the altitude threshold value of the path loss compensation parameter and the compensation amount of the path loss of the aviation UE in the NLOS scene.
Optionally, the path loss compensation parameter is calculated by the base station;
or the path loss compensation parameter is calculated by the aviation UE.
Through the system of the embodiment, the base station only needs to interact with the aviation UE once, namely, the path loss compensation factor adjustment mark is sent to the aviation UE, and then the aviation UE has the path loss compensation factor adjustment authority. Under the condition that the aviation UE has the circuit loss factor adjusting authority, the aviation UE can automatically adjust the circuit loss compensation factor without complex signaling interaction between the base station and the aviation UE or adjusting the circuit loss compensation factor through the base station, so that the method is simple to implement and reduces the expenses of the base station and the aviation UE.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A method for interference rejection in a communication network, comprising:
acquiring preset adjusting parameters;
adjusting the path loss compensation factor under the condition that the preset adjustment parameters accord with preset adjustment conditions and the aviation UE has the path loss compensation factor adjustment authority;
and reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
2. The method of claim 1, further comprising:
receiving a path loss compensation factor adjustment mark sent by a base station; and the path loss compensation factor adjusting mark indicates that the aviation UE has path loss compensation factor adjusting authority.
3. The method of claim 1, wherein if the tuning parameter comprises an altitude of the aviation UE or a path transmission mode of the aviation UE:
the preset adjustment conditions include:
the altitude of the aviation UE has changed;
or
The path transmission mode of the wireless signal where the aviation UE is located is changed; the path transmission modes include line-of-sight transmission of LOS radio signals and non-line-of-sight transmission of NOLS radio signals.
4. The method of claim 1, wherein the adjusting the path loss compensation factor comprises:
determining that the aviation UE is in an LOS scene or an NLOS scene;
when the aviation UE is in an LOS scene, acquiring each compensation parameter in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and when the aviation UE is in the NLOS scene, acquiring the height of the current aviation UE and each parameter in the NLOS scene, and calculating a path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
5. The method of claim 4, wherein the respective compensation parameters in the LOS scenario include:
the compensation amount of the path LOSs and the path LOSs compensation parameter value of the aviation UE in the LOS scene.
6. The method of claim 4, wherein the compensation parameters under the NLOS scenario include:
the threshold value and the altitude threshold value of the path loss compensation parameter and the compensation amount of the path loss of the aviation UE in the NLOS scene.
7. The method according to any of claims 4-6, wherein the path loss compensation parameter is calculated by the base station;
or the path loss compensation parameter is calculated by the aviation UE.
8. An apparatus for interference rejection in a communication network, comprising:
the device comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring preset adjustment parameters;
the system comprises a path loss compensation factor adjusting unit, a path loss compensation factor adjusting unit and a path loss compensation factor adjusting unit, wherein the path loss compensation factor adjusting unit is used for adjusting a path loss compensation factor under the condition that a preset adjusting parameter accords with a preset adjusting condition and the aviation UE has a path loss compensation factor adjusting authority;
and the uplink power adjusting unit is used for reducing the uplink power of the aviation UE based on the adjusted path loss compensation factor.
9. The apparatus of claim 8, wherein the path loss compensation factor adjusting unit comprises:
the scene determining unit is used for determining that the aviation UE is in an LOS scene or an NLOS scene;
the first path LOSs compensation factor adjusting subunit is used for acquiring each compensation parameter in an LOS scene when the aviation UE is in the LOS scene, and calculating a path LOSs compensation factor based on each compensation parameter in the LOS scene;
and the first path loss compensation factor adjusting subunit is used for acquiring the height of the current aviation UE and each parameter in the NLOS scene when the aviation UE is in the NLOS scene, and calculating the path loss compensation factor based on the height of the current aviation UE and each compensation parameter in the NLOS scene.
10. A data transmission system for a communication network that is resistant to interference, comprising:
a base station and an aviation UE;
the base station is used for sending a path loss compensation factor adjustment mark to the aviation UE; the path loss compensation factor adjustment mark indicates that the aviation UE has path loss compensation factor adjustment permission;
the aviation UE, which is used for executing the anti-interference method of the communication network in claims 1-7.
11. An airborne UE, comprising:
a processor and a memory;
wherein the processor is configured to execute a program stored in the memory;
the memory is used for storing a program for performing the method of interference rejection of the communication network of claims 1-7.
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