CN111182573B

CN111182573B - Signal transmission method, network parameter configuration method and communication equipment

Info

Publication number: CN111182573B
Application number: CN201811333519.6A
Authority: CN
Inventors: 柯颋; 吴丹; 刘建军; 侯雪颖; 张静文; 王启星
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2023-05-05
Anticipated expiration: 2038-11-09
Also published as: CN111182573A

Abstract

The invention provides a signal transmission method, a network parameter configuration method and communication equipment. The signal transmission method comprises the following steps: a first reference signal is transmitted, the first reference signal comprising at least two second reference signals, and the at least two second reference signals being distinguishable from each other, each second reference signal comprising at least one orthogonal frequency division multiplexing, OFDM, symbol. The method expands the detectable range of the RIM-RS by increasing the time length of reference signal transmission, and solves the problem that the RIM-RS detection range is smaller and cannot be simultaneously applied to inland areas and coastal areas.

Description

Signal transmission method, network parameter configuration method and communication equipment

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to a signal transmission method, a network parameter configuration method, and a communication device.

Background

In inland areas where the spring, summer and autumn are crossed, or coastal areas where winter is, an atmospheric waveguide (Surface waveguide) phenomenon is liable to occur. When the atmospheric waveguide phenomenon occurs, there will be a layer of the troposphere where the reverse temperature or water vapor decreases sharply with the height, called a waveguide layer, in which most of the radio wave radiation will be confined for super-refractive propagation. Beyond-the-horizon propagation allows radio signals to travel great distances and experience low path propagation losses.

For cellular wireless communication systems (e.g., 4G long term evolution (Long Term Evolution, LTE) systems, or 5G New Radio (NR) systems), when the atmospheric waveguide phenomenon occurs, the Downlink (DL) signal of the remote base station will cause strong interference to the uplink (UP LOAD, UL) data reception of the local base station. As shown in fig. 1, DL signals transmitted by remote scrambling stations (Interference site, or Aggressor site, or Interfering site) have higher energy after being spatially propagated over an ultra-long distance (e.g., tens or hundreds of kilometers) due to the presence of the atmospheric waveguide layer, which falls within the UL signal reception window of the local scrambling station (Victim site, or Interfered site), thereby causing stronger interference to UL data reception by the local base station.

Based on the existing network deployment experience, the atmospheric waveguide influence ranges of inland areas and coastal areas are different. In inland areas, more than 80% of the interference energy comes mainly from the source base stations within 150km (0.5 ms in the equivalent) from the victim station; in coastal areas, more than 80% of the interference energy mainly comes from the interference source base stations within a range of 280 km-320 km (which amounts to 0.93 ms-1.07 ms) from the victim station.

Currently, 3GPP establishes NR-RIM (Remote Interference Management for NR, NR remote interference management) topic in Rel-16 stage to systematically solve remote interference problem from standardization level. Currently, 5G NR networks may employ larger subcarrier spacing and shorter DL-UL periods than 4G LTE networks. For example, when the subcarrier spacing is 30kHz and the frame structure is DDDSU, the total length of UL symbols is about 0.5ms in one DL-UL period (2.5 ms), and RIM-RS (Reference Signal) transmitted from a remote base station can cover only a typical propagation range (about 150 km) of an atmospheric waveguide phenomenon in an inland region, but cannot cover a typical propagation range (about 280km to 320 km) of an atmospheric waveguide phenomenon in an coastal region. When a remote base station from 280km transmits a RIM-RS, the RIM-RS may exceed the UL symbol range of the current base station and fall on DL symbols, resulting in the base station failing to detect the RIM-RS transmitted by the remote base station and failing to trigger subsequent remote interference management operations.

Disclosure of Invention

The technical scheme of the invention aims to provide a signal transmission method, a network parameter configuration method and communication equipment, which are used for solving the problems that in the prior art, the duration of an UL symbol in a DL-UL period is shorter, the detection range of RIM-RS is smaller, and the method and the device cannot be simultaneously applied to inland areas and coastal areas.

An aspect of an embodiment of the present invention provides a signal transmission method, which is applied to a first communication device, where the method includes:

a first reference signal is transmitted, the first reference signal comprising at least two second reference signals, and the at least two second reference signals being distinguishable from each other, each second reference signal comprising at least one orthogonal frequency division multiplexing, OFDM, symbol.

In one aspect, the embodiment of the present invention provides a signal transmission method applied to a second communication device, where the method includes:

a first reference signal is received, the first reference signal comprising at least two second reference signals, and the at least two second reference signals being distinguishable from each other, each second reference signal comprising at least one orthogonal frequency division multiplexing, OFDM, symbol.

Another aspect of the embodiments of the present invention provides a network parameter configuration method, which is applied to a network side device, where the method includes:

Configuring a second reference signal included when the first communication equipment sends the first reference signal according to the maximum value of the remote interference propagation distance detection range supported by the first communication equipment; wherein at least two second reference signals included in the first reference signal can be distinguished from each other, and each second reference signal includes at least one orthogonal frequency division multiplexing OFDM symbol.

The embodiment of the invention also provides a communication device, wherein the communication device is a first communication device, and the communication device comprises a processor and a transceiver, wherein the transceiver is used for:

The embodiment of the invention also provides a communication device, wherein the communication device is a second communication device, and the communication device comprises a processor and a transceiver, wherein the transceiver is used for:

The embodiment of the invention also provides communication equipment, which comprises a processor and a transceiver, wherein the processor is used for:

The embodiment of the invention also provides communication equipment, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor; wherein the processor implements the signal transmission method according to any one of the above or implements the network parameter configuration method according to any one of the above when executing the program.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps of the signal transmission method as described in any one of the above, or implements the steps of the network parameter configuration method as described in any one of the above.

At least one of the above technical solutions of the invention has the following beneficial effects:

according to the signal transmission method provided by the embodiment of the invention, the detectable range of the RIM-RS is enlarged by increasing the time length of reference signal transmission, and the problem that the RIM-RS is smaller in detection range and cannot be simultaneously applied to inland areas and coastal areas is solved.

Drawings

FIG. 1 is a schematic illustration of the effect of an atmospheric waveguide layer on signal transmission;

fig. 2 is a schematic diagram of a system architecture to which a signal transmission method according to an embodiment of the present invention is applied;

FIG. 3 is a schematic diagram of one of the data frame structures;

FIG. 4 is a schematic diagram of another data frame structure;

fig. 5 is a schematic flow chart of a first implementation of a signal transmission method according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a reference frame according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a first reference signal according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a first time length determining method according to an embodiment of the present invention;

FIGS. 9a, 9b and 9c are different embodiments of the method for determining the preset value;

fig. 10 is a schematic flow chart of a second implementation of the signal transmission method according to the embodiment of the present invention;

FIG. 11 is a second flow chart of a second embodiment of a signal transmission method according to the present invention;

fig. 12 is a schematic diagram of a method for determining a downlink transmission target set according to an embodiment of the present invention;

fig. 13 is a schematic flow chart of a third implementation of the signal transmission method according to the embodiment of the present invention;

fig. 14 is a schematic structural diagram of a communication device according to a first embodiment of the present invention;

fig. 15 is a schematic structural diagram of a communication device according to a second embodiment of the present invention;

fig. 16 is a schematic structural view of a communication device according to a third embodiment of the present invention;

fig. 17 is a schematic structural diagram of a communication device according to a fourth embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The signal transmission method of the embodiment of the invention is applied to a wireless communication system, wherein the wireless communication system can be a TDD system, and the TDD system at least comprises a TD-LTE system and an NR system. Fig. 2 is a schematic diagram of an architecture of a wireless communication system according to an embodiment of the present invention, as shown in fig. 2, where the wireless communication system includes at least two communication devices 10, in practical application, a connection between at least two communication devices 10 may be a wireless connection, and for convenience and intuitionistic representation of a connection relationship between each communication device 10, a solid line is adopted in fig. 2.

In the embodiment of the present invention, the wireless communication system includes a plurality of communication devices 10, and each communication device 10 may be a commonly used base station, an evolved node b (evolved node base station, eNB), a network side device in a 5G system (for example, a next generation base station (next generation node base station, gNB) or a transmitting and receiving point (transmission and reception point, TRP)) or a cell device.

With the above-described wireless communication system, when the atmospheric waveguide phenomenon occurs, there is a layer in the troposphere in which the reverse temperature or water vapor becomes drastically small with the height, called a waveguide layer, in which most of the radio wave radiation will be confined for super-refractive propagation. Beyond-the-horizon propagation allows radio signals to travel great distances and experience low path propagation losses. Based on this, when the atmospheric waveguide phenomenon occurs, the DL signal of the remote base station 11 still has higher energy after being propagated through the ultra-long distance space, which falls within the UL signal receiving window of the local base station 12, thereby causing stronger interference to UL signal reception of the local base station 12.

In order to solve the above-mentioned interference problem, in the wireless communication information, by making the interfered base station send a reference signal for indicating that the interfered base station is interfered by the remote base station, the interfered base station can detect the reference signal, and determine whether the sent signal interferes with other base stations, so as to execute further remote interference management operation, and avoid further interference; alternatively, the Shi Rao base station (remote base station 11) may transmit dedicated interference detection reference signals capable of distinguishing different base stations, so that the interfered base station (second base station 12) may determine the interference source by detecting the reference signals transmitted by the interfering base station, so as to execute subsequent remote interference management operation, and avoid interference.

Based on the existing network deployment experience, the atmospheric waveguide influence ranges of inland areas and coastal areas are different. In inland areas, more than 80% of the interference energy comes mainly from the interfering source base stations within 150km (0.5 ms in the equivalent) from the interfered base station; in coastal areas, more than 80% of the interference energy mainly comes from the interference source base stations within a range of 280 km-320 km (which is reduced by 0.93 ms-1.07 ms) from the interfered base stations.

In a 4G LTE network, signal transmission generally adopts a DDDSU frame structure, a subcarrier interval is 15kHz, and a minimum DL-UL period is 5ms, where D represents a downlink subframe, U represents an uplink subframe, and S represents a special slot, where S generally adopts an X: Y: Z configuration, where X: Y: Z configuration is 9:3:2 or 3:9:2. In the configuration of X, Y and Z, X represents the number of DL symbols in the special time slot, Y represents the number of Guard Period (GP) symbols, and Z represents the number of UL symbols.

As shown in fig. 3, when DDDSU is adopted in the 4G LTE network and a special slot is configured by 9:3:2, in a DL-UL period of 5ms, there are 16 UL symbols in total, and the range of the longest distance of RIM-RS signals that can be detected by the base station in UL resources by the remote base station is:

i.e. the furthest range of RIM-RS signals that the base station can detect in UL resources that the remote base station transmits is 343km. Clearly, a detection radius of 343km covers the typical propagation range of the atmospheric waveguide phenomenon.

However, 5G NR supports more flexible signal transmission schemes, such as supporting multiple subcarrier spacings of 15kHz, 30kHz, 60kHz, etc.

As shown in fig. 4, if a 30kHz subcarrier spacing configuration is adopted in the 5G NR network, when the DDDSU frame structure and a special slot configuration of 10:2:2 are adopted, the DL-UL period length is shortened to 2.5ms, and there are 16 UL symbols in total, the farthest range of RIM-RS signals that can be detected by the base station in UL resources by the remote base station is:

obviously, a detection radius of 171km can only cover the typical propagation range of the atmospheric waveguide phenomenon in inland regions (about 150 km), but cannot cover the typical propagation range of the atmospheric waveguide phenomenon in coastal regions (about 280km to 320 km). When a remote base station from 280km transmits a RIM-RS, the RIM-RS may exceed the UL symbol range of the current base station and fall on DL symbols, resulting in the base station failing to detect the RIM-RS transmitted by the remote base station and failing to trigger subsequent remote interference management operations.

In order to solve the problem that the detection range of the RIM-RS is too small due to the fact that the duration of the UL symbol in the DL-UL period is short, the embodiment of the invention provides a signal transmission method, and the detection range of the RIM-RS is enlarged by increasing the time length of reference signal transmission, so that the problem that the detection range of the RIM-RS is small and cannot be simultaneously applied to inland and coastal areas is solved.

In the embodiment of the present invention, the DL signal-UL signal period (DL-UL period) is sometimes referred to as an uplink/downlink transition period (DL-UL switching period) or an uplink/downlink transmission period (DL-UL transmission periodicity).

Fig. 5 is a schematic flow chart of a first implementation manner of a signal transmission method according to an embodiment of the present invention, where the signal transmission method is applied to a first communication device, and includes:

s510, a first reference signal is transmitted, the first reference signal comprising at least two second reference signals, and the at least two second reference signals being distinguishable from each other, each second reference signal comprising at least one orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol.

According to the signal transmission method, the transmitted first reference signal comprises at least two second reference signals which can be distinguished from each other, so that the transmission time length of the first reference signal is increased, and the detectable range of the first reference signal can be remarkably enlarged when the signal transmission method is applied to data transmission of short-period frames.

Specifically, in the embodiment of the present invention, the second reference signals include at least one OFDM symbol, each of the second reference signals is formed as a signal Resource (Resource) of the first reference signal, and at least two second reference signals are combined to form the first reference signal. The at least two second reference signals are transmitted together when transmitted by the first communication device but at a time interval from each other.

From the above, it can be understood that at least two second reference signals included in the first reference signal do not overlap each other in the time domain.

In the embodiment of the present invention, when the at least two second reference signals are in the same DL signal-UL signal period, at least one of the following configuration differences is distinguished from each other:

frequency domain location, pseudo-random sequence and orthogonal cover code (Orthogonal Cover Code, OCC) scrambling code.

In the signal transmission method, by enabling a plurality of second reference signals in the first reference signals to be distinguished from each other, when a receiving end detects at least one second reference signal in a listening window, the second reference signals can be distinguished from each other, and further, the spatial propagation delay of the first reference signals can be estimated according to the time domain transmission position of the detected second reference signals and the time domain receiving position of the detected second reference signals. Further, the receiving end can further determine how many DL symbols need to be subjected to far-end interference suppression according to the spatial propagation delay of the first reference signal.

In addition, when at least two second reference signals are distinguished from each other by frequency domain positions, different second reference signals use different frequency domain start positions; for example, when transmitting a first reference signal, a first second reference signal is transmitted on a sub-band of 0-20 MHz, and a second reference signal is transmitted on a sub-band of 20-40 MHz, based on which two second reference signals are transmitted at different frequency domain starting positions; or alternatively, the process may be performed,

When the second reference signal adopts a comb-tooth structure in the frequency domain, the first second reference signal and the second reference signal are both transmitted in the sub-band of 0-20 MHz, but the first second reference signal starts to be transmitted from the first Subcarrier (SC) and the second reference signal starts to be transmitted from the second SC. And the comb of the second reference signal is 2, i.e. the second reference signal has non-zero power every 1 SC in the frequency domain.

When at least two second reference signals are distinguished from each other by a pseudo-random sequence, different second reference signals use different pseudo-random sequences; when at least two second reference signals are distinguished from each other by an OCC scrambling code, different second reference signals use different frequency domain OCC scrambling codes. Those skilled in the art will be able to understand the specific manner in which the transmitted at least two second reference signals are distinguished from each other in the above manner, and will not be illustrated here.

Further, in the embodiment of the present invention, in step S510, the transmitted first reference signal is a remote interference management reference signal RIM-RS, or the first reference signal is used to provide information of at least one of the following:

the first communication device is subject to far-end interference;

The first communication device receives the maximum uplink OFDM symbol number of far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

a communication device identification of the first communication device.

Specifically, when the first reference signal is transmitted according to a pre-configured transmission manner (e.g., according to a pre-configured transmission location), it may indicate that the transmitted first reference signal is a RIM-RS or that the first communication device is subject to far-end interference;

when a first reference signal is transmitted according to a predetermined convention, a second communication device located at a remote end can receive the first reference signal, indicating the existence of an atmospheric waveguide phenomenon.

In addition, the communication device identifier of the first communication device may be represented by a transmission mode of the first reference signal and/or a transmission mode of the second reference signal (for example, a transmission position of the second reference signal is predetermined), and when receiving the first reference signal transmitted by a different communication device, the device identifier of the communication device transmitting the first reference signal may be determined according to the transmission position of the second reference signal, so as to distinguish the different communication devices; thus, the first reference signal can be used to provide a communication device identification of the first communication device.

It should be understood that the foregoing implementation manner in which the first reference signal is a remote interference management reference signal RIM-RS, and the first reference signal is used to provide the first communication device with remote interference, whether an atmospheric waveguide phenomenon exists, and a communication device identifier of the first communication device is merely for illustration, and is not limited thereto, and is not illustrated herein.

Further, the first reference signal is further configured to provide a maximum uplink OFDM symbol number of the first communication device subjected to far-end interference, with the following specific reasons:

if the second communication device (specifically, the remote interfering base station) listens to the first reference signal in the xth UL OFDM symbol, and the second communication device knows in advance that the first communication device (i.e., the communication device transmitting the first reference signal, specifically, the remote interfering base station) transmits the DL symbol position of the first reference signal at the unified maximum DL transmission boundary, then the second communication device can infer the path propagation distance of the first reference signal.

The second communication device can infer that if it itself also transmits DL data (e.g., PDSCH, DL reference signal, etc.) at the same maximum DL transmission boundary, it will cause far-end interference to the first communication device for up to X UL OFDM symbols based on the channel diversity assumption.

Based on the above principle, the first reference signal can provide information of the maximum uplink OFDM symbol number of the first communication device subject to far-end interference.

In the embodiment of the present invention, in step S510, in the step of transmitting the first reference signal, the transmission manner of the first reference signal is as follows:

and transmitting all the second reference signals of the first reference signals in one transmission period of downlink transmission.

For example, one transmission period of the downlink transmission may be 2min. And selecting one DL signal-UL signal period to transmit the first reference signal in the transmission period, wherein the length of the DL signal-UL signal period is 5ms, and transmitting each second reference signal included in the first reference signal in the transmission period of 2min by adopting the transmission mode.

Optionally, the sending manner of the second reference signal may also be:

and transmitting the second reference signal of the part of the first reference signal in one transmission period of downlink transmission, and transmitting all the second reference signals of the first reference signal in at least two transmission periods.

For example, one transmission period of the downlink transmission is 2min, wherein in the current one transmission period, the second reference signal of the portion of the first reference signal is transmitted, for example, if the first reference signal includes two second reference signals, only one second reference signal may be transmitted in the transmission period; when the first reference signal includes three second reference signals, one or two second reference signals may be transmitted in the transmission period; when the next transmission period with the preset time interval arrives, transmitting a second reference signal of other parts in the next transmission period; it will be appreciated that in the above manner, when the first reference signal includes a plurality of second reference signals, by transmitting a part of the second reference signals per transmission period, all the second reference signals can be transmitted in a plurality of transmission periods.

Further, in the embodiment of the present invention, in S510, when the first reference signal is transmitted, the time domain end position of the transmitted first reference signal is aligned with the first reference point;

the first reference point is a DL signal transmission boundary in a DL signal-UL signal period.

As shown in fig. 6, in the signal transmission method according to the embodiment of the present invention, the structure of the transmitted data frame is schematically shown. With a DL signal-UL signal period of 2.5ms, a frame structure of DDDSU, a subcarrier spacing of 30kHz, and S of 10:2:2, the first reference point is the DL signal transmission boundary in the DL signal-UL signal period, i.e. at position a in fig. 6.

In the embodiment of the present invention, the time domain end position of the transmitted first reference signal is aligned with the first reference point, and as shown in fig. 6 and 7, the time domain end position of the first reference signal is aligned with the position a.

Based on the above, a first reference signal comprising at least two second reference signals is transmitted, one second reference signal is present and one second reference signal is present, and the time domain end position is aligned with the first reference point. That is, referring to fig. 7, in the first reference signal, the first reference signal includes a first second reference signal 100 and a second reference signal 200, wherein a time domain end position of the first second reference signal 100 is aligned with a first reference point.

In addition, according to fig. 6, the first reference point is a DL signal transmission boundary within a DL signal-UL signal period, i.e., the base station cannot schedule UL transmissions after the first reference point.

It should be noted that, all base stations in the network have a common understanding about DL signal-UL signal period and DL signal transmission boundary (i.e., first reference point) in DL signal-UL signal period, and may be specifically configured or agreed in advance.

Optionally, in the embodiment of the present invention, in order to avoid affecting transmission of other signals, in step S510, in the step of transmitting the first reference signal, the second reference signal is not transmitted on at least one of the following time-frequency resources:

UL signal, guard Period (GP), primary synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary Synchronization Signal, SSS), physical broadcast channel (Physical Broadcast Channel, PBCH), and synchronization signal block (Synchronization Signal Block, SSB).

Optionally, in the embodiment of the present invention, in step S510, in the step of sending the first reference signal, a time interval between two adjacent second reference signals is less than or equal to the first duration;

Wherein the first time length is equal to a difference between the second time length and a preset value, wherein the preset value is greater than or equal to zero.

By adopting the above manner, by setting the time interval between two adjacent second reference signals, the receiving end can be ensured to at least sense one second reference signal in the signal sensing window (such as 0.5 ms), and the detectable range of the reference signal can be remarkably enlarged (such as exceeding 0.5 ms) under the constraint of a short-period frame structure (such as 2.5 ms).

It is understood that, preferably, when the first reference signal is transmitted, the second reference signal is not transmitted on any one of the time-frequency resources of the UL signal, GP, PSS, SSS, PBCH and SSB under the condition that the time interval between the adjacent two second reference signals is guaranteed to be less than or equal to the first duration.

Optionally, in the step of sending the first reference signal, when the first reference signal includes at least three second reference signals, a time interval between every two adjacent second reference signals is equal to the first duration.

Optionally, in an embodiment of the present invention, the second duration is determined in one of the following manners:

the second duration is the time length of the first interception window;

The second duration is a time interval from the second reference point to the right boundary of the DL signal-UL signal period; the second reference point is an UL signal receiving boundary in a DL signal-UL signal period;

the second duration is a time interval from the first reference point to a right boundary of a DL signal-UL signal period.

Optionally, the first listening window may be a listening window of the receiving end listening reference signal, and specifically may be determined according to a preset or a preset configuration;

in addition, as shown in fig. 6, the second reference point is the UL signal receiving boundary in the DL signal-UL signal period, that is, the position b in fig. 6.

In the embodiment of the present invention, according to the pre-configuration, the first reference point and the second reference point may be different time domain positions, or the first reference point and the second reference point may also have the same time domain position, that is, the time domain position of the first reference point coincides with the time domain position of the second reference point.

According to the signal transmission method provided by the embodiment of the invention, when the time interval between two adjacent second reference signals is smaller than or equal to the time length of the first interception window, the principle that a receiving end can at least intercept one second reference signal in the signal interception window (the first signal interception window) can be as follows:

Referring to fig. 8, the first listening window has a time length of M OFDM Signals (OS), and when the repetition transmission period of the first reference Signal is N OS, where N is less than or equal to M, the receiving end listens to each first reference Signal in the first listening window, that is, the receiving end tries to listen to at least one second reference Signal of each first reference Signal in the first listening window, and when the interval between two adjacent second reference signals is less than the time length of the first listening window, there is always a part of energy of one second reference Signal falling in the first listening window, that is, there is a possibility that at least one second reference Signal is detected by the receiving end.

According to the above, optionally, the second duration may also be a time interval from the second reference point to the right boundary of the DL signal-UL signal period, or may also be a time interval from the first reference point to the right boundary of the DL signal-UL signal period, and by adopting the determining manner of the two second durations, the problem that when the above-mentioned second duration is the time length of the first listening window, different listening window configurations are adopted by different base stations, and different understandings are given to the second duration, which causes the method described in the embodiment of the present invention to be unable to be effectively implemented.

In the embodiment of the present invention, as shown in fig. 6, the second reference point (location b) is an UL reception boundary in the DL signal-UL signal period, which means that the base station does not expect UL reception before the second reference point.

In one embodiment, when the second duration is the time interval from the second reference point to the right boundary of the DL signal-UL signal period, the receiving end is restricted to listen to the first reference signal in all UL symbols after the second reference point;

in another embodiment, the second duration is a time interval from the first reference point to the right boundary of the DL signal-UL signal period, i.e. the receiving end is allowed to listen to the first reference signal in all UL symbols after the second reference point and in a time interval between the first reference point and the second reference point.

In the embodiment of the present invention, optionally, the preset value is determined according to one of the following methods:

the preset value is equal to zero;

the preset value is determined according to the time length of the second reference signal;

the preset value is determined according to the time length of the second interception window; the second listening window is the minimum time window in which the receiving end of the first reference signal can correctly receive the second reference signal.

When the preset value is equal to zero, it can be ensured that part of the energy of one second reference signal always falls in the first listening window, i.e. at least one second reference signal is possibly detected by the receiving end. However, the detection performance of the first reference signal cannot be ensured.

Optionally, when the preset value is determined according to the time length of the second listening window:

if the second reference signal includes 1 OFDM symbol and the time length of the second listening window is equal to 1 OFDM symbol, the preset value is equal to the time length of 1 OFDM symbol;

if the time length of the second listening window is equal to M OFDM symbols, the preset value is equal to the time length of M-1 OFDM symbols, where M is greater than or equal to 2.

Here, when the first reference signal and the service data employ different subcarrier spacings (SubCarrier Spacing, SCS), the OFDM symbol duration is a duration of an OFDM symbol determined according to the SCS of the first reference signal.

Referring to fig. 9a, 9b and 9c, when the minimum time window (second listening window) in which the receiving end of the first reference signal can correctly receive the second reference signal has a time length of M OSs, reliable detection performance of the first reference signal can be ensured only when the second reference signal of at least M OSs falls within the first listening window.

In the embodiment of the present invention, referring to fig. 9a, 9b and 9c, for example, when the time interval between two adjacent second reference signals (the first second reference signal 100 and the second reference signal 200) is smaller than or equal to the first duration, the first duration is equal to the difference between the second duration and the preset value, the second duration is the time length of the first listening window (for example, 8 OS), and if the second reference signal includes 1OS and the time length of the second listening window is equal to 1OS, the preset value is equal to the duration of 1 OFDM symbol. As shown in fig. 9c, in this case, as long as the first duration=8os—1os=7os, it can be ensured that at least one second reference signal is present, which can be reliably detected within the first listening window.

If the time length of the second listening window is equal to M OFDM symbols, the preset value is equal to the time length of M-1 OFDM symbols, wherein M is greater than or equal to 2.

As shown in fig. 9a, when the time length of the first listening window is 8 OSs (i.e., the second duration=8os), m=2, and the preset value is M-1=1, so long as the first duration=7os, at least one second reference signal can be ensured to exist, and the second reference signal can be reliably detected in the first listening window. That is, the preset value=the second time period-the first time period=8 OS-7os=1 os= (M-1) OS.

As shown in fig. 9b, when the time length of the first listening window is 8 OSs (i.e., the second duration=8os), m=1, the preset value is M-1=0, and as long as the first duration=8os, at least one second reference signal can be ensured to exist, and can be reliably detected in the first listening window. That is, the preset value=the second time period-the first time period=8 OS-8 os=0 os= (M-1) OS.

In another aspect of the embodiment of the present invention, when the preset value is determined according to the time length of the second reference signal:

if the second reference signal includes 1 OFDM symbol, the preset value is equal to a duration of 1 OFDM symbol;

if the second reference signal includes M OFDM symbols, the preset value is equal to a duration of M-1 OFDM symbols, where M is greater than or equal to 2.

The principle of determining the preset value according to the time length of the second reference signal is the same as that of determining the preset value according to the time length of the second listening window, and will not be described in detail herein.

In addition, it can be understood that when the time length of the second listening window is exactly equal to the time length of the second reference signal, the preset value determined according to the above two methods is the same.

Optionally, the signal transmission method according to the embodiment of the present invention further includes:

And configuring the time domain position of the second reference signal included in the first reference signal according to the maximum value of the supported remote interference propagation distance detection range.

Optionally, in the signal transmission method, the configured time domain position of the second reference signal in the first reference signal satisfies the following relation:

S+W≥H；

wherein S is a transmission interval of two second reference signals furthest apart, W is a preset listening window duration of the receiving end, and H is a maximum value of a remote interference propagation distance detection range supported by the first communication device.

Specifically, when the time intervals between every two adjacent second reference signals are equal, the transmission interval S of the two second reference signals farthest from each other can be calculated by the following relation:

S＝(s-1)×d；

where s is the number of second reference signals included in the second reference signals, and d is a transmission interval of two adjacent second reference signals.

Based on the above configuration mode, according to the maximum value of the supported remote interference propagation distance detection range, the time domain position of the second reference signal included in the first reference signal is configured, so that the configured second reference signal is ensured to satisfy the relation of s+w being greater than or equal to H, and if the distance between the first communication device and the second communication device is smaller than or equal to the maximum value H of the remote interference propagation distance detection range supported by the first communication device, the first communication device can ensure that at least one second reference signal in the transmitted first reference signal can be detected by the second communication device when the first reference signal is transmitted.

Optionally, in the step of configuring the second reference signal included in the first reference signal, the second reference signal is not configured on at least one of the following time-frequency resources;

UL signal, guard slot GP, primary synchronization signal PSS, secondary synchronization signal SSS, physical broadcast channel PBCH, and synchronization signal block SSB.

Based on the above manner, when the time domain position of the second reference signal is configured, the configured time domain position needs to be staggered from the above signal so as to avoid affecting the above signal.

In addition, the embodiment of the present invention further provides a signal transmission method of the second embodiment, which is applied to a second communication device, where, as shown in fig. 10, the method includes:

s1010, receiving a first reference signal, where the first reference signal includes at least two second reference signals, and the at least two second reference signals can be distinguished from each other, and each second reference signal includes at least one orthogonal frequency division multiplexing OFDM symbol.

Optionally, as shown in fig. 11, the method further includes:

s1110, interception of at least one second reference signal in the first reference signals;

s1120, determining a downlink transmission target set according to the at least one second reference signal;

S1130, performing interference suppression operation on the downlink transmission target set.

Based on the signal transmission method, when at least one second reference signal in the first reference signals is detected, a downlink transmission target set is determined, and an interference suppression operation is performed on the downlink transmission target set.

Optionally, in step S1130, performing an interference suppression operation on the downlink transmission target set includes:

if the downlink transmission target set includes at least one downlink OFDM symbol, performing interference suppression operation on the at least one downlink OFDM symbol by at least one of the following modes:

downlink data is not sent;

limiting the value range of the downtilt angle of the antenna;

limiting the antenna beam forming direction; and

limiting the range of the downlink transmitting power.

Optionally, in step S1120, the determining the downlink transmission target set according to the detected at least one second reference signal includes:

and determining the downlink transmission target set according to the time domain sending position and the time domain receiving position of the at least one second reference signal.

Specifically, the determining the downlink transmission target set according to the time domain sending position and the time domain receiving position of the at least one second reference signal includes:

Determining that the downlink transmission target set includes all DL signals after a third reference point within a DL signal-UL signal period;

wherein the third reference point is located before the first reference point, and the time interval between the third reference point and the first reference point is equal to the sum of a third duration, a fourth duration and a preset constant,

the third duration is a time interval from the time domain receiving position of the second reference signal to the second reference point, wherein the time interval is detected by the second communication equipment;

the fourth duration is the time interval from the time domain transmitting position of the second reference signal to the first reference point;

the first reference point is a DL signal transmission boundary in a DL signal-UL signal period, and the second reference point is a UL signal reception boundary in the DL signal-UL signal period.

As shown in fig. 12, for example, when the first reference signal transmitted by the first communication device includes two second reference signals, the first second reference signal 100 and the second reference signal 200, if the second reference signal 200 is received by the second communication device, the time interval from the time domain receiving position of the second reference signal 200 to the second reference point (position b) is denoted as X, the time interval from the time domain transmitting position of the second reference signal 200 to the first reference point (position a) is denoted as Y, and DL signals transmitted by the first communication device in x+y DL symbols before the first reference point may cause strong far-end interference to UL signals of the second communication device.

Therefore, the second communication device needs to perform interference suppression operation in all DL symbols after the third reference point (location c), wherein the third reference point is before the first reference point, and the duration Z from the third reference point to the first reference point is the sum of the X-th duration (third duration), the Y-th duration (fourth duration), and the preset constant.

Optionally, the preset constant is 0, 1 OFDM symbol or-1 OFDM symbol.

In the embodiment of the present invention, in step S1120, the determining the downlink transmission target set according to the detected at least one second reference signal includes:

when at least two second reference signals are detected, respectively determining a downlink transmission resource set corresponding to each detected second reference signal;

and determining each combined aggregate set of the downlink transmission resource sets as the downlink transmission target set.

Specifically, when the at least two second reference signals are detected from the first reference signals sent by the same communication device, the second downlink transmission resource sets calculated according to different second reference signals should be identical;

when the at least two second reference signals are detected from the first reference signals sent by different base stations, the second downlink transmission resource sets calculated according to the different second reference signals may be different, and the combined set is taken as the downlink transmission target set, that is, the second communication device may be an interference source of a plurality of interfered stations, and then interference suppression needs to be performed on the farthest interfered station.

It can be appreciated that when the second communication device suppresses enough DL symbols so that the DL signal with interference suppressed does not interfere with the remote-end victim station, the DL signal with interference suppressed will not naturally interfere with the near-end victim station.

frequency domain location, pseudo-random sequence, and OCC scrambling code.

Optionally, in the step of listening for at least one second reference signal in the first reference signals, a time domain end position of the first reference signal is aligned with a first reference point;

Optionally, the first reference signal is a remote interference management reference signal RIM-RS, or the first reference signal is used to provide information of at least one of:

the first communication device is subject to far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

a communication device identification of the first communication device.

In particular, reference may be made to the above detailed description of the first embodiment for a specific configuration of the first reference signal transmitted by the first communication device, which may be received by the second communication device, and will not be described in detail here.

The present invention also provides a method for configuring network parameters according to a third embodiment, which is applied to a network side device, as shown in fig. 13, and includes:

s1310, configuring a second reference signal included when the first communication equipment sends the first reference signal according to the maximum value of the remote interference propagation distance detection range supported by the first communication equipment; wherein at least two second reference signals included in the first reference signal can be distinguished from each other, and each second reference signal includes at least one orthogonal frequency division multiplexing OFDM symbol.

Optionally, the second reference signal included in the configured first reference signal satisfies the following relation:

S+W≥H

Specifically, the transmission interval S of the two second reference signals farthest from each other can be calculated by the following relation:

S＝(s-1)×d；

Optionally, in the configured first reference signals, a time interval between two adjacent second reference signals is smaller than or equal to a first duration;

wherein the first time length is equal to a difference between the second time length and a preset value, wherein the preset value is greater than or equal to zero;

the second duration is determined by one of the following modes:

the second duration is a time interval from the first reference point to a right boundary of a DL signal-UL signal period; the first reference point is a DL signal transmission boundary in a DL signal-UL signal period.

Optionally, in the step of configuring a second reference signal included when the first communication device transmits a first reference signal, the second reference signal is not configured on at least one of the following time-frequency resources;

The embodiment of the present invention further provides a communication device, where the communication device is a first communication device, as shown in fig. 14, and the communication device includes a processor 1410 and a transceiver 1420, where the transceiver 1420 is configured to:

Optionally, when the at least two second reference signals are within the same DL signal-UL signal period, they are distinguished from each other by at least one of the following configuration differences:

Frequency domain position, pseudo-random sequence and orthogonal cover code OCC scrambling code.

Optionally, when the transceiver 1420 transmits a first reference signal, a time domain end position of the first reference signal is aligned with a first reference point;

the first communication device is subject to far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

a communication device identification of the first communication device.

Optionally, the at least two second reference signals do not overlap each other in the time domain.

Optionally, when the transceiver 1420 transmits the first reference signal, the second reference signal is not transmitted on at least one of the following time-frequency resources:

Optionally, when the transceiver 1420 transmits the first reference signal, a time interval between two adjacent second reference signals is less than or equal to the first duration;

Optionally, when the transceiver 1420 transmits the first reference signal, a time interval between every two adjacent second reference signals is equal to the first duration.

Optionally, the second duration is determined in one of the following manners:

the second duration is the time length of the first interception window;

Optionally, the preset value is determined according to one of the following methods:

the preset value is equal to zero;

Optionally, when the preset value is determined according to the time length of the second reference signal:

Optionally, the processor 1410 is configured to:

Optionally, the configured time domain position of the second reference signal in the first reference signal satisfies the following relation:

S+W≥H

Optionally, in the step of transmitting the first reference signal by the transceiver 1420, the second reference signal of the whole first reference signal is transmitted in one transmission period of the downlink transmission; or alternatively, the process may be performed,

The embodiment of the present invention further provides another communication device, where the communication device is a second communication device, as shown in fig. 15, including a processor 1510 and a transceiver 1520, where the transceiver 1520 is configured to:

Optionally, the processor 1510 is configured to:

listening for at least one second reference signal of the first reference signals;

determining a downlink transmission target set according to the at least one second reference signal;

and executing interference suppression operation on the downlink transmission target set.

Optionally, the processor 1510 performs an interference suppression operation on the downlink transmission target set, including:

downlink data is not sent;

limiting the value range of the downtilt angle of the antenna;

limiting the antenna beam forming direction; and

limiting the range of the downlink transmitting power.

Optionally, the processor 1510 determines the set of downlink transmission targets according to the at least one second reference signal, including:

Optionally, the determining, by the processor 1510, the downlink transmission target set according to the time-domain transmission position and the time-domain reception position of the at least one second reference signal, includes:

Optionally, the preset constant is 0, 1 OFDM symbol or-1 OFDM symbol.

frequency domain location, pseudo-random sequence, and OCC scrambling code.

Optionally, when the processor 1510 listens for at least one second reference signal in the first reference signals, the time domain end position of the first reference signal is aligned with a first reference point;

the first communication device is subject to far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

a communication device identification of the first communication device.

The present invention also provides another communication device, as shown in fig. 16, comprising a processor 1610 and a transceiver 1620, wherein the processor 1610 is configured to:

S+W≥H

the second duration is determined by one of the following modes:

Optionally, when the processor 1610 configures a second reference signal included when the first communication device transmits a first reference signal, the second reference signal is not configured on at least one of the following time-frequency resources;

In an aspect of the embodiment of the present invention, a communication device is provided, where the communication device may be a network side device, such as a base station, and as shown in fig. 17, when the communication device is a network side device, the communication device includes a transceiver 1701, a memory 1702, a processor 1700, and a program stored in the memory 1702 and capable of running on the processor 1700; the processor 1700 invokes and executes programs and data stored in the memory 1702.

The transceiver 1701 receives and transmits data under the control of the processor 1700, and in particular, the processor 1700 is configured to read a program in the memory 1702, and execute the following procedures:

Alternatively, the processor 1700 is configured to read a program in the memory 1702, and perform the following process:

It will be appreciated that the processor 1700 is further configured to read the program in the memory 1702 and execute the respective processes corresponding to the respective signal transmission methods described above, which are not further illustrated herein.

Where in FIG. 17, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1700 and various circuits of memory represented by the memory 1702. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1701 may be a number of elements, i.e. include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1702 may store data used by the processor 1700 in performing operations.

Those skilled in the art will appreciate that all or part of the steps implementing the above embodiments may be implemented by hardware, or may be implemented by a program including instructions for performing some or all of the steps of the above methods; and the program may be stored in a readable storage medium, which may be any form of storage medium.

In addition, a specific embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the steps in the signal transmission method as set forth in any one of the above, or implements the steps in the network parameter configuration method as set forth in any one of the above.

In the several embodiments provided in this application, it should be understood that the disclosed methods and apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes should also be considered as being within the scope of the present invention.

Claims

1. A signal transmission method applied to a first communication device, the method comprising:

transmitting a first reference signal, wherein in a transmission period of the first reference signal, the first reference signal comprises at least two signal resources, the at least two signal resources can be distinguished from each other, and each signal resource comprises at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol;

the at least two signal resources are not overlapped in the time domain, and a time interval exists between any two adjacent signal resources.

2. The signal transmission method according to claim 1, wherein the at least two signal resources are within the same DL signal-UL signal period and are distinguished from each other by at least one of the following configuration differences:

3. The signal transmission method according to claim 1, wherein in the step of transmitting the first reference signal, a time domain end position of the first reference signal is aligned with a first reference point;

4. The signal transmission method of claim 1, wherein the first reference signal is a remote interference management reference signal RIM-RS or the first reference signal is used to provide information of at least one of:

The first communication device is subject to far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

a communication device identification of the first communication device.

5. The signal transmission method according to claim 1, wherein in the step of transmitting the first reference signal, the signal resource is not transmitted on at least one of the following time-frequency resources:

6. The signal transmission method according to claim 1, wherein in the step of transmitting the first reference signal, a time interval between two adjacent signal resources is less than or equal to a first duration;

7. The signal transmission method according to claim 6, wherein in the step of transmitting the first reference signal, a time interval between every two adjacent signal resources is equal to the first duration.

8. The signal transmission method of claim 6, wherein the second time period is determined by one of:

The second duration is the time length of the first interception window;

the second duration is a time interval from a first reference point to a right boundary of a DL signal-UL signal period, and the first reference point is a DL signal transmission boundary in the DL signal-UL signal period.

9. The signal transmission method according to claim 6, wherein the preset value is determined according to one of the following methods:

the preset value is equal to zero;

the preset value is determined according to the time length of the signal resource;

the preset value is determined according to the time length of the second interception window; the second listening window is the minimum time window in which the receiving end of the first reference signal can correctly receive the signal resource.

10. The signal transmission method of claim 9, wherein when the preset value is determined according to a time length of the second listening window:

if the signal resource includes 1 OFDM symbol and the time length of the second listening window is equal to 1 OFDM symbol, the preset value is equal to the time length of 1 OFDM symbol;

11. The signal transmission method according to claim 9, wherein when the preset value is determined according to a time length of the signal resource:

if the signal resource comprises 1 OFDM symbol, the preset value is equal to the duration of 1 OFDM symbol;

if the signal resource includes M OFDM symbols, the preset value is equal to a duration of M-1 OFDM symbols, where M is greater than or equal to 2.

12. The signal transmission method according to claim 1, characterized in that the method further comprises:

and configuring the time domain position of the signal resource included in the first reference signal according to the maximum value of the supported remote interference propagation distance detection range.

13. The signal transmission method according to claim 12, wherein,

the configured time domain position of the signal resource in the first reference signal satisfies the following relation:

S+W≥H

wherein S is a transmission interval of two signal resources farthest from each other, W is a preset listening window duration of the receiving end, and H is a maximum value of a remote interference propagation distance detection range supported by the first communication device.

14. The signal transmission method according to claim 1, wherein in the step of transmitting the first reference signal, all of the signal resources of the first reference signal are transmitted in one transmission period of the downlink transmission; or alternatively, the process may be performed,

and transmitting the signal resources of the part of the first reference signal in one transmission period of downlink transmission, and transmitting all the signal resources of the first reference signal in at least two transmission periods.

15. A signal transmission method applied to a second communication device, the method comprising:

receiving a first reference signal, wherein in a transmission period of the first reference signal, the first reference signal comprises at least two signal resources, the at least two signal resources can be distinguished from each other, and each signal resource comprises at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol;

16. The signal transmission method according to claim 15, characterized in that the method further comprises:

listening for at least one signal resource in the first reference signal;

Determining a downlink transmission target set according to the at least one detected signal resource;

17. The signal transmission method according to claim 16, wherein the performing an interference suppression operation on the downlink transmission target set includes:

downlink data is not sent;

limiting the value range of the downtilt angle of the antenna;

limiting the antenna beam forming direction; and

limiting the range of the downlink transmitting power.

18. The method of claim 16, wherein determining the set of downlink transmission targets based on the at least one signal resource detected comprises:

and determining the downlink transmission target set according to the time domain sending position and the time domain receiving position of the at least one detected signal resource.

19. The method according to claim 18, wherein the determining the downlink transmission target set according to the time domain transmission position and the time domain reception position of the at least one signal resource includes:

the third duration is the time interval from the time domain receiving position of the signal resource to the second reference point, which is detected by the second communication equipment;

the fourth duration is the time interval from the time domain transmitting position of the signal resource to the first reference point;

20. The signal transmission method according to claim 19, wherein the preset constant is 0, 1 OFDM symbol or-1 OFDM symbol.

21. The method of claim 16, wherein determining the set of downlink transmission targets based on the at least one signal resource detected comprises:

when at least two signal resources are detected, respectively determining a downlink transmission resource set corresponding to each detected signal resource;

22. The signal transmission method of claim 15, wherein the at least two signal resources are within a same DL signal-UL signal period and are distinguished from each other by at least one of the following configuration differences:

frequency domain location, pseudo-random sequence, and OCC scrambling code.

23. The signal transmission method according to claim 16, wherein in the step of listening to at least one signal resource in the first reference signal, a time domain end position of the first reference signal is aligned with a first reference point;

24. The signal transmission method of claim 15, wherein the first reference signal is a remote interference management reference signal RIM-RS or the first reference signal is used to provide information of at least one of:

the first communication device is subject to far-end interference;

the maximum number of uplink OFDM symbols subject to far-end interference by the first communication device;

whether or not an atmospheric waveguide phenomenon exists;

the communication device identity of the first communication device.

25. A network parameter configuration method applied to a network side device, the method comprising:

configuring signal resources included when the first communication equipment sends a first reference signal according to the maximum value of a remote interference propagation distance detection range supported by the first communication equipment; wherein, in the transmission period of the first reference signal, at least two signal resources included in the first reference signal can be distinguished from each other, and each signal resource includes at least one orthogonal frequency division multiplexing OFDM symbol;

26. The network parameter configuration method according to claim 25, wherein the signal resources included in the configured first reference signal satisfy the following relation:

S+W≥H

27. The network parameter configuration method according to claim 25, wherein in the configured first reference signal, a time interval between two adjacent signal resources is less than or equal to a first duration;

the second duration is determined by one of the following modes:

the second duration is the time interval from the first reference point to the right boundary of the DL signal-UL signal period; the first reference point is a DL signal transmission boundary in a DL signal-UL signal period.

28. The network parameter configuration method according to claim 25, wherein in the step of configuring signal resources included when the first communication device transmits the first reference signal, the signal resources are not configured on at least one of the following time-frequency resources;

29. A communication device, wherein the communication device is a first communication device comprising a processor and a transceiver, wherein the transceiver is configured to:

30. The communication device of claim 29, wherein the at least two signal resources are within a same DL signal-UL signal period and are distinguished from each other by at least one of the following configuration differences:

31. The communication device of claim 29, wherein the transceiver transmits the first reference signal with a time domain end position of the first reference signal aligned with the first reference point;

32. The communication device of claim 29, wherein the first reference signal is a remote interference management reference signal, RIM-RS, or the first reference signal is configured to provide information of at least one of:

The first communication device is subject to far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

a communication device identification of the first communication device.

33. The communication device of claim 29, wherein the transceiver does not transmit the signal resources on at least one of the following time-frequency resources when transmitting the first reference signal:

34. The communication device of claim 29, wherein when the transceiver transmits the first reference signal, a time interval between two adjacent signal resources is less than or equal to the first duration;

35. The communication device of claim 34, wherein the transceiver transmits the first reference signal at a time interval between every two adjacent signal resources equal to the first duration.

36. The communication device of claim 34, wherein the second duration is determined by one of:

The second duration is the time length of the first interception window;

37. The communication device of claim 34, wherein the preset value is determined according to one of the following methods:

the preset value is equal to zero;

38. The communication device of claim 37, wherein when the preset value is determined according to a time length of a second listening window:

39. The communication device of claim 37, wherein when the preset value is determined according to a length of time of the signal resource:

40. The communication device of claim 29, wherein the processor is configured to:

41. The communication device of claim 40, wherein,

S+W≥H

42. The communication device according to claim 29, wherein in the step of transmitting the first reference signal by the transceiver, all of the signal resources of the first reference signal are transmitted during one transmission period of the downlink transmission; or alternatively, the process may be performed,

43. A communication device, wherein the communication device is a second communication device comprising a processor and a transceiver, wherein the transceiver is configured to:

44. The communication device of claim 43, wherein the processor is configured to:

Listening for at least one signal resource in the first reference signal;

45. The communication device of claim 44, wherein the processor performs interference suppression operations on the set of downlink transmission targets, comprising:

downlink data is not sent;

limiting the value range of the downtilt angle of the antenna;

limiting the antenna beam forming direction; and

limiting the range of the downlink transmitting power.

46. The communication device of claim 44, wherein the processor determines a set of downlink transmission targets based on the at least one signal resource sensed, comprising:

47. The communication device of claim 46, wherein the processor determines the set of downlink transmission targets based on time-domain transmit locations and time-domain receive locations of the at least one signal resource that is heard, comprising:

48. The communication device of claim 47, wherein the predetermined constant is 0, 1 OFDM symbol, or-1 OFDM symbol.

49. The communication device of claim 44, wherein the processor determines a set of downlink transmission targets based on the at least one signal resource sensed, comprising:

50. The communication device of claim 43, wherein the at least two signal resources are within a same DL signal-UL signal period and are distinguished from one another by at least one of the following configuration differences:

frequency domain location, pseudo-random sequence, and OCC scrambling code.

51. The communication device of claim 44, wherein the processor, while listening for at least one signal resource in the first reference signal, aligns a time domain ending position of the first reference signal with a first reference point;

52. The communication device of claim 43, wherein the first reference signal is a remote interference management reference signal, RIM-RS, or the first reference signal is used to provide information of at least one of:

the first communication device is subject to far-end interference;

whether or not an atmospheric waveguide phenomenon exists;

the communication device identity of the first communication device.

53. A communication device comprising a processor and a transceiver, the processor configured to:

54. The communication device of claim 53, wherein the signal resources included in the configured first reference signal satisfy the relationship:

S+W≥H

55. The communication device of claim 53, wherein in the first reference signal configured, a time interval between two adjacent signal resources is less than or equal to a first duration;

the second duration is determined by one of the following modes:

56. The communication device of claim 53, wherein the processor, when configuring signal resources included when the first communication device transmits a first reference signal, does not configure the signal resources on at least one of the following time-frequency resources;

57. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the program being characterized in that the processor, when executing the program, implements the signal transmission method according to any one of claims 1 to 14, or implements the signal transmission method according to any one of claims 15 to 24, or implements the network parameter configuration method according to any one of claims 25 to 28.

58. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the signal transmission method according to any one of claims 1-14, or the signal transmission method according to any one of claims 15-24, or the network parameter configuration method according to any one of claims 25 to 28.