WO2014079287A1 - 一种基于自干扰消除技术的通信方法、基站及通信系统 - Google Patents
一种基于自干扰消除技术的通信方法、基站及通信系统 Download PDFInfo
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- WO2014079287A1 WO2014079287A1 PCT/CN2013/085009 CN2013085009W WO2014079287A1 WO 2014079287 A1 WO2014079287 A1 WO 2014079287A1 CN 2013085009 W CN2013085009 W CN 2013085009W WO 2014079287 A1 WO2014079287 A1 WO 2014079287A1
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- 238000004891 communication Methods 0.000 title claims abstract description 729
- 238000000034 method Methods 0.000 title claims abstract description 90
- 230000008030 elimination Effects 0.000 title claims abstract description 40
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 40
- 238000005516 engineering process Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
Definitions
- the present invention relates to the field of communications, and in particular, to a communication method, a base station, and a communication system based on self-interference cancellation techniques. Background technique
- Full-duplex wireless communication is a technology that enables simultaneous simultaneous frequency communication between two base stations.
- the base station when the base station performs communication, the base station can receive the useful signal transmitted from other base stations, and can also receive the signal transmitted by itself, because the transmitting antenna and the receiving antenna of the base station are close to each other, the signal transmitted by itself The power is much larger than the signal power of the wanted signal, so the signal transmitted by itself becomes the self-interference signal received by the base station with respect to the useful signal.
- the self-interference signal will affect the normal communication of the base station and reduce the stability of the full-duplex wireless communication system, so the self-interference signal needs to be eliminated.
- the self-interference signal is mainly eliminated by the full-duplex elimination technology
- the full-duplex elimination technology is mainly based on the radio frequency elimination method. Since the radio frequency elimination method uses hardware to eliminate the self-interference signal, some band elimination performance is better, that is, the signal power is lower after self-interference cancellation, and the other band elimination performance is poor, that is, the signal power after self-interference cancellation is still relatively good. High, the signal band with the self-interference signal elimination has certain frequency selectivity by using the full-duplex elimination technology, and the full-duplex communication mode in the frequency band with poor performance elimination still affects the communication of the base station, so the communication system is stable. Less sexual. Summary of the invention
- Embodiments of the present invention provide a communication method, a base station, and a communication system based on a self-interference cancellation technique, which can improve stability of a communication system.
- a first aspect of the present invention provides a communication method based on a self-interference cancellation technique, including: The frequency band of the self-interference-cancelled signal is divided into at least one communication frequency band by comparing the power of the self-interference-cancelled signal with a first preset power threshold.
- the first preset power threshold is a first power threshold
- the comparing the power of the self-interference-removed signal with a first preset power threshold obtains at least one communication band including:
- the acquiring the communication manner corresponding to the communication frequency band includes:
- Obtaining a communication mode corresponding to the first communication frequency band is a full duplex communication mode.
- the communication method corresponding to the second communication frequency band is a half-duplex communication mode.
- the first preset power threshold is a second power threshold and a third power threshold, and the second power threshold is smaller than the third power threshold.
- the comparing the power of the self-interference-cancelled signal to the at least one communication frequency band by comparing the power of the self-interference-cancelled signal with the first preset power threshold includes: the power of the signal after the self-interference is cancelled The second power threshold and the third power threshold are simultaneously compared.
- the frequency band corresponding to the signal in the self-interference-cancellation signal whose power is less than or equal to the second power threshold is divided into a third communication frequency band.
- the frequency band corresponding to the signal in the self-interference-cancellation signal whose power is less than or equal to the third power threshold is greater than the second power threshold is divided into a fourth communication frequency band.
- the frequency band corresponding to the signal in the self-interference-cancellation signal whose power is greater than the third power threshold is divided into a fifth communication frequency band.
- the acquiring the communication manner corresponding to the communication frequency band includes:
- the communication mode corresponding to the third communication frequency band is a full duplex communication mode.
- the communication mode corresponding to the fourth communication band is a negotiation communication mode
- the negotiation communication mode is a communication mode determined by the base station according to the feedback information of the user equipment.
- the communication method corresponding to the fifth communication frequency band is a half-duplex communication mode.
- the method further includes: dividing the communication band into n sub-communication bands by comparing the power of the communication band with a second preset power threshold, n ⁇ 2.
- the n sub-communication bands are arranged in descending order of minimum power of the n sub-communication bands to obtain a first sub-communication band to an n-th sub-communication band.
- the transmission power is allocated for the first sub-communication band to the n-th communication band in descending order of transmission power.
- an embodiment of the present invention provides a base station, including:
- a dividing unit configured to compare a power band of the signal after the self-interference cancellation with a first preset power threshold, obtain a frequency band of the signal after the self-interference cancellation to obtain at least one communication frequency band, and send the communication frequency band to the acquiring unit .
- an acquiring unit configured to receive the communication frequency band sent by the dividing unit, acquire a communication mode corresponding to the communication frequency band, and send a communication mode corresponding to the communication frequency band and the communication frequency band to a sending unit.
- a sending unit configured to receive the communication frequency band and the communication sent by the acquiring unit And a communication mode corresponding to the communication band, and transmitting the communication band and the communication mode corresponding to the communication band to the user equipment, so that the user equipment and the base station according to the communication band and the communication mode corresponding to the communication band Communicate.
- the first preset power threshold includes: a first power threshold, where the dividing unit is specifically configured to:
- the acquiring unit is specifically configured to:
- Obtaining a communication mode corresponding to the first communication frequency band is a full duplex communication mode.
- the communication method corresponding to the second communication frequency band is a half-duplex communication mode.
- the first preset power threshold includes: a second power threshold and a third power threshold, where the second power threshold is less than the third power threshold.
- the dividing unit is specifically configured to:
- the power of the self-interference canceled signal is compared with the second power threshold and the third power threshold simultaneously.
- the frequency band corresponding to the signal in the self-interference-cancellation signal whose power is less than or equal to the second power threshold is divided into a third communication frequency band.
- the frequency band corresponding to the signal in the self-interference-cancellation signal whose power is greater than the third power threshold is divided into a fifth communication frequency band.
- the acquiring unit is specifically configured to:
- the communication mode corresponding to the third communication frequency band is a full duplex communication mode.
- the communication mode corresponding to the fourth communication frequency band is a negotiated communication mode.
- the communication method corresponding to the fifth communication frequency band is a half-duplex communication mode.
- the base station when the frequency band of the signal after the self-interference cancellation is divided into one communication frequency band, and the communication mode corresponding to the communication frequency band is a full double In the communication mode, the base station further includes: a subband dividing unit, configured to compare the power of the communication band with a second preset power threshold to divide the communication band into n sub-communication bands, n ⁇ 2 And transmitting the sub-communication frequency band to the sorting unit.
- a sorting unit configured to receive the sub-communication frequency band sent by the sub-band dividing unit, and arrange the n sub-communication bands according to a minimum power of the n sub-communication bands to obtain a first sub-communication
- the frequency band is transmitted to the nth sub-communication frequency band, and the first sub-communication frequency band is transmitted to the n-th sub-communication frequency band to the configuration unit.
- a configuration unit configured to receive the first sub-communication frequency band to the n-th sub-communication frequency band sent by the sorting unit, and use the first sub-communication frequency band to the n-th sub-communication frequency band in descending order of transmission power The transmit power is allocated.
- an embodiment of the present invention provides a communication system, including: a base station having the foregoing feature and at least one user equipment.
- An embodiment of the present invention provides a communication method, a base station, and a communication system based on a self-interference cancellation technology.
- the communication method based on the self-interference cancellation technology includes: comparing a power of a signal after self-interference cancellation with a first preset power threshold And dividing the frequency band of the signal after the self-interference cancellation into at least one communication frequency band; acquiring a communication mode corresponding to the communication frequency band; transmitting the communication frequency band and the communication mode corresponding to the communication frequency band to the user equipment, to facilitate the The user equipment communicates with the base station according to the communication band and the communication method corresponding to the communication band.
- the base station obtains the communication frequency band by dividing the frequency band of the signal after the interference cancellation, and acquires the corresponding communication mode
- the user equipment can flexibly select the communication mode according to the communication frequency band and the communication mode corresponding to the communication frequency band.
- the communication is increased, and the flexibility of the communication band is increased.
- the influence of frequency selectivity on communication is reduced, and the stability of the communication system is improved.
- FIG. 1 is a flowchart of a communication method based on self-interference cancellation technology according to an embodiment of the present invention
- FIG. 2 is a flowchart of another communication method based on self-interference cancellation technology according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a method for dividing a frequency band according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of another method for dividing a frequency band according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of cell area division according to an embodiment of the present invention
- FIG. 6 is a flowchart of still another communication method based on self-interference cancellation technology according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram of another method for dividing a frequency band according to an embodiment of the present invention
- FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention
- FIG. 9 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of still another base station according to an embodiment of the present disclosure.
- An embodiment of the present invention provides a communication method based on a self-interference cancellation technology, as shown in FIG. 1 , including:
- the base station reduces the power of the signal after the self-interference and the first preset power threshold. To compare, the frequency band of the self-interference-cancelled signal is divided to obtain at least one communication band.
- the base station acquires a communication manner corresponding to the communication frequency band.
- the communication method includes: a full duplex communication mode and a half duplex communication mode.
- the half-duplex communication modes include: FDD (Frequency Diviation Dupl ex) and TDD (Time Diviation Dupl ex).
- FDD Frequency Diviation Dupl ex
- TDD Time Diviation Dupl ex
- TDD Time Diviation Dupl ex
- TDD communication technology and FDD communication technology can be called TDD half-duplex communication technology and FDD half-duplex communication technology compared with full-duplex communication technology.
- TDD half-duplex is used.
- the half-duplex power threshold set in the communication system of the communication technology and the FDD half-duplex communication technology is the same.
- the base station sends the communication band and the communication mode corresponding to the communication band to the user equipment, so that the user equipment communicates with the base station according to the communication mode and the communication mode corresponding to the communication band.
- the base station obtains the communication frequency band by dividing the frequency band of the signal after the interference cancellation, and acquires the corresponding communication mode, so that the user equipment can flexibly select the communication mode according to the communication frequency band and the communication mode corresponding to the communication frequency band.
- Communication increases the flexibility in the use of the communication band, and reduces the influence of frequency selectivity on communication compared to the prior art, thereby improving the stability of the communication system.
- the first preset power threshold may be set before the frequency band is divided, or may be flexibly adjusted according to the needs of the communication system. In actual applications, the first preset power threshold may be based on The communication of full-duplex communication mode or half-duplex communication mode requires specific settings.
- the first preset power threshold may include one or more power thresholds, and the frequency band of the self-interference-cancelled signal may be divided into at least one communication frequency band by using different first preset power thresholds.
- a communication method based on the self-interference cancellation technology provided by the embodiment of the present invention includes: S201.
- the base station performs self-interference cancellation on the self-interference signal to obtain a self-interference cancellation signal.
- the embodiment of the present invention performs the elimination of the self-interference signal by using the full-duplex elimination technology.
- the full-duplex elimination technology is mainly based on the radio frequency elimination method, and the specific implementation process may refer to the prior art, which is not described in the present invention.
- the base station compares the power of the signal after the interference cancellation with the first power threshold, and divides the frequency band of the signal after the self-interference cancellation into at least one communication frequency band.
- the base station may compare the power of the self-interference-cancelled signal with the first power threshold. Then, the base station compares the frequency of the signal after the self-interference cancellation signal to a signal that is less than or equal to the first power threshold. Dividing into a first communication frequency band, dividing a frequency band corresponding to a signal whose power in the self-interference cancellation signal is greater than the first power threshold into a second communication frequency band.
- the curve M represents the power of the self-interference signal received by the base station
- the curve N represents the power of the signal after the interference cancellation
- the power P is the first power threshold
- the first power threshold is the full-duplex communication mode.
- the signal power threshold after self-interference cancellation according to the specific communication quality requirements.
- the frequency band corresponding to the self-interference-cancelled signal is divided into a frequency band A, a frequency band B, and a frequency band C by comparing the power of the self-interference-cancelled signal with the first power threshold.
- the frequency band A is a frequency band corresponding to a signal in which the power in the signal after the interference cancellation is less than or equal to the first power threshold, that is, the first communication frequency band, and the first communication frequency band has better self-interference cancellation performance, and is in full duplex.
- the communication requirement of the communication mode; the frequency band B and the frequency band C are the frequency bands corresponding to the signals in the signal after the interference cancellation is greater than the first power threshold, that is, the second communication frequency band, and the self-interference cancellation performance of the second communication frequency band is poor. , Eliminate performance does not meet the communication requirements of full-duplex communication.
- the base station acquires a communication manner corresponding to the communication frequency band.
- the communication mode corresponding to the first communication band can be obtained as a full-duplex communication mode;
- the interference cancellation performance is poor, and the elimination performance does not meet the communication requirements of the full duplex communication mode, and the communication mode corresponding to the second communication frequency band can be obtained as a half duplex communication mode.
- the communication method corresponding to the frequency band A is a full-duplex communication method
- the communication method corresponding to the frequency band B and the frequency band C is a half-duplex communication method.
- S204 The base station sends the communication band and the communication mode corresponding to the communication band to the user equipment.
- the base station can transmit, by using a broadcast mode, the communication frequency band and the communication mode corresponding to the communication frequency band to all user equipments in the communication system, so that the user equipment can communicate with the communication frequency band according to the communication frequency band and the communication mode corresponding to the communication frequency band.
- the base station communicates.
- the user equipment communicates with the base station according to the communication frequency band and a communication mode corresponding to the communication frequency band.
- the user equipment When the user equipment communicates with the first communication frequency band, the user equipment learns that the communication mode corresponding to the first communication frequency band is a full-duplex communication mode according to the communication frequency band and the communication mode corresponding to the communication frequency band, and the user equipment adopts The full duplex communication mode communicates with the base station.
- the user equipment When the user equipment communicates with the second communication frequency band, the user equipment learns that the communication mode corresponding to the second communication frequency band is a half-duplex communication mode according to the communication frequency band and the communication mode corresponding to the communication frequency band, and the user equipment adopts The half duplex communication mode communicates with the base station.
- the frequency band of the self-interference-cancelled signal is divided into one communication frequency band, and the communication mode corresponding to the communication frequency band is a full-duplex communication mode, as shown in FIG.
- the method further includes: dividing the communication frequency band into n sub-communication bands by comparing the power of the communication band with a second preset power threshold, n ⁇ 2, wherein the second preset power threshold is smaller than Determining a first preset power threshold; arranging the n sub-communication bands in order from a minimum to a minimum of the n sub-communication bands to obtain a first sub-communication band to an n-th sub-communication band; The transmission order is allocated to the first sub-communication band to the n-th sub-communication band in a small order.
- the second preset power threshold is assumed to be a fourth power threshold X and a fifth power threshold Y, and the fourth power threshold X is greater than the fifth power threshold ⁇ .
- the curve M represents the self-interference signal power received by the base station
- the curve N represents the signal power after the self-interference cancellation
- the power P is the first power threshold
- the first power threshold is set according to the specific communication quality requirement in the full-duplex communication mode.
- the signal power threshold after interference cancellation; in practical applications, the fourth power threshold X and the fifth power threshold Y may be set according to specific conditions.
- the self-drying is performed by comparing the power of the self-interference-cancelled signal with the first power threshold
- the frequency band division of the signal after the interference cancellation obtains a communication frequency band, and the communication mode corresponding to the communication frequency band is a full-duplex communication mode. Then, by comparing the power of the communication band with the fourth power threshold X and the fifth power threshold Y, the sub-communication band D that is less than or equal to the fifth power threshold Y, that is, the first sub-communication band is obtained, and is obtained to be greater than the fifth power.
- the sub-communication band E and the sub-communication band G which are equal to the fourth power threshold X, and the second sub-communication band, and the sub-communication band F, which is greater than the fourth power threshold X, is the third sub-communication band, according to the three sub-bands.
- the minimum power of the communication band is arranged in a small to large order to obtain a first sub-communication band, a second sub-communication band, and a third sub-communication band, and then the first sub-communication band is in descending order of transmission power,
- the second sub-communication band and the third sub-communication band allocate transmit powers as a first transmit power, a second transmit power, and a third transmit power.
- the first sub-communication band has better self-interference cancellation performance, and the first sub-communication band is allocated a higher power of the first transmission power, and when the base station communicates, the first sub-communication band can be used for each frequency.
- the point is used as the primary carrier, covering all the cells managed by the base station, that is, the area A shown in FIG. 5, the area A is a circular area having a radius of a with the point 0 as the center, and the center 0 is the location of the base station.
- the radius a is determined by the maximum value of the current base station transmit power, and the maximum value of the current base station transmit power may be calculated by the fifth power threshold Y according to the provisions of the prior art.
- the self-interference cancellation performance of the second sub-communication band is between the self-interference cancellation performance of the first sub-communication band and the third sub-communication band, and the power of the second transmission power is allocated to the second sub-communication band by the first transmission Between the power and the third transmit power, when the base station communicates, each frequency point in the second sub-communication frequency band can be used as the first secondary carrier, covering most of the cells managed by the base station, that is, shown in FIG.
- the area B is a circular area having a radius of b from the center of the point 0, where the center 0 is the location where the base station is located, and the radius b is determined by the maximum value of the current base station transmit power, the current base station
- the maximum value of the transmit power can be calculated from the fourth power threshold X according to the specifications of the prior art.
- the self-interference cancellation performance of the third sub-communication frequency band is poor, and the power for allocating the third transmission power to the third sub-communication frequency band is low.
- each frequency point in the third sub-communication frequency band is used as the second auxiliary.
- the carrier is used to cover a small portion of the cell managed by the base station. That is, the area C shown in FIG. 5 is a circular area having a radius of c with a point 0 as a center, where the center 0 is the position where the base station is located, and the radius c is the power transmitted by the current base station.
- the maximum value determined by the maximum value, the maximum value of the current base station transmit power can be calculated from the first power threshold value P according to the provisions of the prior art.
- each frequency point in the frequency band D is used as a primary carrier, and each frequency point in the frequency band E and the frequency band G is used as a first secondary carrier, and each frequency point in the frequency band F is used as a second secondary carrier.
- the base station may broadcast, by using a broadcast frequency band, the carrier type used by each frequency point in the communication frequency band and the transmission power value used by the communication frequency band, and the like to all user equipments in the communication system, so as to facilitate the
- the user equipment communicates with the base station based on the communication band, the carrier type used at each frequency point in the communication band, and the transmission power value used by the communication band.
- each frequency point in the first sub-communication frequency band is used as a primary carrier, covering all the cells managed by the base station, each frequency point in the second sub-communication frequency band is used as the first secondary carrier, and the coverage base station is used. For most of the managed cells, each frequency point in the third sub-communication band is used as the second secondary carrier, covering a small portion of the cell managed by the base station.
- the base station may notify the user equipment to use the frequency point in the first sub-communication frequency band for full-duplex communication; when the user equipment is at the point When 0 is the center of the circle and the radius r satisfies the inside of the ring region where C ⁇ ⁇ 6 , the base station notifies the user equipment to use the frequency point in the second sub-communication band for full-duplex communication.
- the base station may also notify the user equipment to use the frequency point in the first sub-communication frequency band for full-duplex communication according to the specific situation; when the user is in a circular area with the point 0 as the center and the radius r satisfying The base station notifies the user equipment to use the frequency point in the third sub-communication frequency band to perform full-duplex communication.
- the base station can notify the user equipment to use the first The sub-communication frequency band or the frequency point in the second sub-communication frequency band is communicated. In this way, the base station can determine the corresponding sub-subject according to the location of the user equipment. Channel frequency band to communicate with a user equipment, and the different sub-bands corresponding to different communication transmission power to improve the flexibility of communication and the power consumption can be reduced.
- the location of the user equipment may be sent by the user equipment to the base station.
- Location information such as TA (Timing Advance), etc., makes the base station aware.
- the second preset power threshold may be one or more.
- the base station can compare the power of the communication band with the second preset power threshold, and The communication band division obtains n sub-communication bands, and allocates appropriate transmission power to the sorted n sub-communication bands.
- the base station notifies the user equipment to select an appropriate communication band and a communication mode corresponding to the communication band, and fully utilizes the full-duplex elimination technology to eliminate the characteristics of the frequency band of the self-interfering signal, reduces the bit error rate, and improves the communication quality. Thereby improving the stability of the communication system.
- the first preset power threshold is assumed to be a second power threshold and a third power threshold, and the second power threshold is smaller than the third power threshold.
- Another communication method based on the self-interference cancellation technology provided by the embodiment of the present invention, as shown in FIG. 6, includes:
- the base station performs self-interference cancellation on the self-interference signal to obtain a self-interference cancellation signal.
- the embodiment of the present invention performs the self-interference signal elimination by the full-duplex elimination technology.
- the full-duplex elimination technology is mainly based on the radio frequency elimination method, and the specific implementation process may refer to the prior art, which is not described in the present invention.
- the base station compares the power of the self-interference-cancelled signal with the second power threshold and the third power threshold to obtain a frequency band of the self-interference-cancelled signal to obtain at least one communication frequency band.
- the base station may compare the power of the self-interference-cancelled signal with the second power threshold and the third power threshold. Then, the base station cancels the self-interference-removed signal and the power is less than or equal to the second power threshold.
- the frequency band corresponding to the signal is divided into a third communication frequency band; the frequency band corresponding to the signal in the signal after the self-interference cancellation is greater than the signal whose power is greater than or equal to the third power threshold is divided into a fourth communication frequency band, The frequency band corresponding to the signal whose power is greater than the third power threshold in the self-interference cancellation signal is divided into the fifth communication frequency band.
- the curve M represents the power of the self-interference signal received by the base station
- the curve N represents the power of the signal after the interference cancellation
- the power R is the second power threshold
- the rate threshold is a signal power threshold after the self-interference cancellation according to the specific communication quality requirement in the full-duplex communication mode
- the power s is a third power threshold
- the third power threshold is a specific communication quality according to the half-duplex communication mode.
- the signal power threshold after the self-interference cancellation is required to be set.
- the frequency band corresponding to the signal after the interference cancellation is divided into a frequency band U, a frequency band V, a frequency band T, and a frequency band W.
- the frequency band V is a frequency band corresponding to a signal in which the power in the signal after the interference cancellation is less than or equal to the second power threshold, that is, a third communication frequency band, and the third communication frequency band has better self-interference cancellation performance and is in full duplex.
- the frequency band u and the frequency band T are frequency bands corresponding to the signal in the signal after the interference cancellation is greater than the signal whose power is greater than the second power threshold, that is, the fourth communication frequency band, the fourth communication
- the self-interference cancellation performance of the frequency band is between the third communication frequency band and the fifth communication frequency band
- the frequency band w is a frequency band corresponding to the signal in the signal after the interference cancellation is greater than the third power threshold value
- the base station acquires a communication manner corresponding to the communication frequency band.
- the communication mode corresponding to the third communication band can be obtained as a full-duplex communication mode;
- the interference cancellation performance is between the third communication frequency band and the fifth communication frequency band, and the communication mode corresponding to the fourth communication frequency band can be obtained as a negotiated communication mode; since the fifth communication frequency band has the worst self-interference cancellation performance, the cancellation performance is not
- the communication method corresponding to the fifth communication band can be obtained as a half-duplex communication mode in accordance with the communication requirement of the full-duplex communication mode.
- the negotiated communication mode is a communication mode determined by the base station according to the feedback information of the user equipment. As shown in Fig.
- the communication method corresponding to the frequency band V is a full-duplex communication method
- the communication method corresponding to the frequency band U and the frequency band T is a negotiated communication method
- the communication method corresponding to the frequency band W is a half-duplex communication method.
- the base station sends the communication band and the communication mode corresponding to the communication band to the user equipment.
- the base station may send, by using a broadcast mode, the communication frequency band and the communication mode corresponding to the communication frequency band to all user equipments in the communication system, so that the user equipment is configured according to the user equipment.
- the communication band and the communication method corresponding to the communication band communicate with the base station.
- the user equipment communicates with the base station according to the communication band and the communication mode corresponding to the communication band.
- the user equipment When the user equipment communicates with the third communication band, the user equipment learns that the communication mode of the third communication band pair is a full-duplex communication mode according to the communication band and the communication mode corresponding to the communication band, and the user equipment adopts The full duplex communication mode communicates with the base station.
- the user equipment When the user equipment communicates with the fourth communication frequency band, the user equipment learns that the communication mode of the fourth communication frequency band pair is a negotiated communication mode according to the communication frequency band and the communication mode corresponding to the communication frequency band, and the user equipment adopts the negotiated communication mode.
- the mode communicates with the base station.
- the negotiation communication mode instructs the base station to determine the current communication mode of the user equipment by using the feedback information of the user equipment.
- the feedback information includes: information about the transmit power of the base station and the interference of the neighboring base station measured by the user equipment, and the base station detects the transmit power of the base station and the interference of the neighboring base station according to the measured by the user equipment. And determining the influence of the information on the self-interference cancellation performance of the base station.
- the base station sends a message to the user equipment to indicate that the user equipment communicates by using the communication mode determined by the negotiation communication mode.
- the user equipment When the user equipment communicates with the fifth communication frequency band, the user equipment learns that the communication mode corresponding to the fifth communication frequency band is a half-duplex communication mode according to the communication frequency band and the communication mode corresponding to the communication frequency band, and the user equipment adopts The half duplex communication mode communicates with the base station.
- the sequence of the communication method based on the self-interference cancellation technology provided by the embodiment of the present invention may be appropriately adjusted, and the steps may be correspondingly increased or decreased according to the situation, and any person skilled in the art may disclose the present invention.
- the method of change can be easily thought of, and therefore will not be described again.
- the half-duplex communication mode includes a TDD half-duplex communication mode and an FDD half-duplex communication mode, and the user equipment The choice of the communication mode actually employed is determined according to the communication system of the user equipment.
- a communication method based on the self-interference cancellation technology is provided in the embodiment of the present invention.
- the base station can divide the frequency band of the self-interference-removed signal into multiple communication frequency bands according to the characteristics of the signal band after self-interference cancellation, and obtain corresponding correspondence.
- the communication method enables the user equipment to flexibly select the communication method according to the communication band and the communication mode corresponding to the communication band to perform communication, thereby increasing flexibility in use of the communication band.
- An embodiment of the present invention provides a base station 80, including:
- the dividing unit 801 is configured to: after comparing the power of the self-interference-removed signal with the first preset power threshold, divide the frequency band of the self-interference-cancelled signal into at least one communication frequency band, and send the communication frequency band to obtain Unit 802.
- the first preset power threshold includes: a first power threshold.
- the first preset power threshold may further include: a second power threshold and a third power threshold, where the second power threshold is smaller than the third power threshold.
- the obtaining unit 802 is configured to receive the communication frequency band sent by the dividing unit 801, acquire a communication mode corresponding to the communication frequency band, and send the communication frequency band and the communication mode corresponding to the communication frequency band to the transmitting unit 803.
- the communication mode corresponding to the communication band may be a full-duplex communication method or a half-duplex communication method.
- the sending unit 803 is configured to receive the communication band sent by the acquiring unit 802 and a communication mode corresponding to the communication band, and send the communication band and the communication mode corresponding to the communication band to the user equipment, so as to facilitate The user equipment communicates with the base station according to the communication band and the communication method corresponding to the communication band.
- the dividing unit obtains the communication band by dividing the frequency band of the self-interference-removed signal, and the acquiring unit acquires the corresponding communication mode, so that the user equipment can transmit the communication band according to the sending unit and the communication mode corresponding to the communication band.
- Flexible choice of communication method for communication increasing flexibility in the use of communication bands, compared to prior art This reduces the impact of frequency selectivity on communication, thus improving the stability of the communication system.
- the dividing unit 801 is specifically configured to compare the power of the signal after the self-interference cancellation with the first power threshold; and corresponding to the signal that the power in the self-interference cancellation signal is less than or equal to the first power threshold.
- the frequency band is divided into a first communication frequency band; a frequency band corresponding to the signal in the signal after the self-interference cancellation is greater than the first power threshold is divided into a second communication frequency band.
- the acquiring unit 802 is specifically configured to acquire a communication mode corresponding to the first communication frequency band as a full-duplex communication mode, and obtain a communication mode corresponding to the second communication frequency band as a half-duplex communication mode.
- the dividing unit 801 is further configured to compare the power of the self-interference-cancelled signal with the second power threshold and the third power threshold; and if the power in the signal after the self-interference is cancelled is less than or equal to the
- the frequency band corresponding to the signal of the second power threshold is divided into a third communication frequency band; the frequency band corresponding to the signal whose power is less than or equal to the third power threshold and greater than the second power threshold is divided into fourth a communication band; dividing a frequency band corresponding to the signal in the signal after the self-interference cancellation that is greater than the third power threshold into a fifth communication band.
- the obtaining unit 802 is further configured to: obtain a communication mode corresponding to the third communication frequency band as a full-duplex communication mode; acquire a communication mode corresponding to the fourth communication frequency band as a negotiated communication mode; and acquire the fifth communication frequency band
- the corresponding communication method is half-duplex communication.
- the base station 80 further includes:
- a subband dividing unit 804 configured to divide the communication band into n sub-communication bands, n ⁇ 2, by comparing the power of the communication band with a second preset power threshold, and send the sub-communication band to Sorting unit 805.
- the sorting unit 805 is configured to receive the sub-communication frequency band sent by the sub-band dividing unit 804, and arrange the n sub-communication bands according to a minimum power of the n sub-communication bands from the smallest to the largest.
- the sub communication band to the nth sub communication band transmits the first sub communication band to the nth sub communication band to the configuration unit 806.
- the configuration unit 806 is configured to receive the first sub-communication frequency band to the n-th sub-communication frequency band that are sent by the sorting unit 805, and the first sub-communication frequency band to the n-th sub-sequence according to a transmission power from large to small
- the communication band allocates transmit power.
- the full-duplex elimination technique is used to eliminate the frequency bands of the self-interfering signals.
- the subband dividing unit can compare the power of the communication band with a second preset power threshold, divide the communication band into n sub-communication bands, and sort by the configuration unit. The next n sub-communication bands are allocated appropriate transmit power.
- the base station notifies the user equipment to select an appropriate communication mode, fully utilizes the full-duplex elimination technique to eliminate the characteristics of the frequency band of the self-interfering signal, and improves the stability of the communication system.
- the dividing unit obtains the communication frequency band by dividing the frequency band of the self-interference-removed signal, and the acquiring unit acquires the corresponding communication mode, so that the user equipment can send the communication frequency band and the communication frequency band according to the sending unit.
- the corresponding communication method flexibly selects the communication method for communication, and increases the flexibility in use of the communication band. Compared with the prior art, the influence of frequency selectivity on communication is reduced, thereby improving the stability of the communication system.
- the embodiment of the present invention provides a base station 90, as shown in FIG. 10, including:
- the processor 901 is configured to: after comparing the power of the signal after the self-interference cancellation with the first preset power threshold, divide the frequency band of the signal after the self-interference cancellation into at least one communication frequency band, and obtain the communication corresponding to the communication frequency band. And transmitting the communication band and the communication band communication mode to the transmitter 902.
- the first preset power threshold is a first power threshold, and the first preset power threshold may also be a second power threshold and a third power threshold, where the second power threshold is smaller than the third power threshold.
- the obtaining the communication manner corresponding to the communication frequency band includes:
- Obtaining a communication mode corresponding to the first communication band is a full-duplex communication mode; and acquiring a communication mode corresponding to the second communication band is a half-duplex communication mode.
- the transmitter 902 is configured to receive the communication band sent by the processor 901 and a communication mode corresponding to the communication band, and send the communication band and the communication mode corresponding to the communication band to the user equipment, so as to facilitate The user equipment according to the communication frequency band and The communication method corresponding to the communication band communicates with the base station.
- the processor obtains the communication mode by dividing the frequency band of the signal after the interference cancellation, and obtains a corresponding communication mode, so that the user equipment can flexibly select according to the communication frequency band sent by the transmitter and the communication mode corresponding to the communication frequency band.
- the communication method is used for communication, and the flexibility in use of the communication band is increased. Compared with the prior art, the influence of frequency selectivity on communication is reduced, thereby improving the stability of the communication system.
- the processor 901 is specifically configured to: compare the power of the self-interference-removed signal with a first preset power threshold, and divide the frequency band of the self-interference-removed signal to obtain at least one communication frequency band, including: Comparing the power of the cancelled signal with the first power threshold; dividing a frequency band corresponding to the signal whose power is less than or equal to the first power threshold in the signal after the interference cancellation is divided into a first communication frequency band; The frequency band corresponding to the signal whose power is greater than the first power threshold in the cancelled signal is divided into the second communication frequency band.
- the processor 901 is further configured to: divide the frequency band of the self-interference-cancelled signal into at least one communication frequency band by comparing the power of the self-interference-cancelled signal with a first preset power threshold, further comprising: The power of the self-interference-cancelled signal is compared with the second power threshold and the third power threshold; the frequency band corresponding to the signal in the signal after the self-interference cancellation is less than or equal to the second power threshold is divided into a third communication frequency band; the frequency band corresponding to the signal in the signal after the self-interference cancellation is less than or equal to the signal whose third power threshold is greater than the second power threshold is divided into a fourth communication frequency band; A frequency band corresponding to a signal whose medium power is greater than the third power threshold is divided into a fifth communication frequency band.
- the obtaining the communication mode corresponding to the communication frequency band includes: acquiring a communication mode corresponding to the third communication frequency band as a full-duplex communication mode; acquiring a communication mode corresponding to the fourth communication frequency band as a negotiation communication mode, the negotiating The communication mode is a communication mode determined by the base station according to the feedback information of the user equipment; and the communication mode corresponding to the fifth communication frequency band is a half-duplex communication mode.
- the processor 901 may be further configured to: The power is compared with the second preset power threshold, The communication frequency band is divided into n sub-communication bands, n ⁇ 2 ; and the n sub-communication bands are arranged in order from the smallest power of the n sub-communication bands to obtain the first sub-communication band to the n-th sub-communication. a frequency band; a transmission power is allocated for the first sub-communication band to the n-th sub-communication band in descending order of transmission power.
- the processor obtains the communication band by dividing the frequency band of the signal after the interference cancellation, and obtains a corresponding communication mode, so that the user equipment can correspond to the communication band and the communication band sent by the transmitter.
- the communication method flexibly selects the communication method for communication, and increases the flexibility in use of the communication band. Compared with the prior art, the influence of frequency selectivity on communication is reduced, thereby improving the stability of the communication system.
- the embodiment of the present invention provides a communication system, including any base station and user equipment provided by the embodiments of the present invention.
- the disclosed system, apparatus, and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separate.
- the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units.
- the purpose of the embodiment of the present embodiment can be achieved by selecting some or all of the units according to actual needs.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
- the readable storage medium when executed, executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as ROM, RAM, magnetic disk or optical disk.
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Abstract
本发明实施例提供一种基于自干扰消除技术的通信方法、基站和通信系统,涉及通信领域,能够提高通信系统的稳定性。所述通信方法包括:基站划分通信频带、获取各通信频带对应的通信方式,发送各通信频带及其通信方式至用户设备。本发明实施例提供的通信方法、基站和通信系统用于具有频率选择性的全双工消除技术消除后的自干扰信号频带进行通信。
Description
一种基于自干扰消除技术的通信方法、 基站及通信系统 本申请要求于 2012年 11月 20日提交中国专利局、申请号为 2Qm()471851. 5、 发明名称为 "一种基于自干扰消除技术的通信方法、 基站及通信系统" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信领域, 尤其涉及一种基于自干扰消除技术的通信方 法、 基站及通信系统。 背景技术
全双工无线通信是一种可以实现两个基站同时同频通信的技术。 在 该通信系统中, 基站进行通信时, 该基站可以收到来自其他基站发送的 有用信号, 也可以收到自身发送的信号, 由于该基站的发射天线和接收 天线距离很近, 自身发送的信号功率远大于有用信号的信号功率, 因此 自身发送的信号相对于有用信号来说就成为该基站接收到的自干扰信 号。 自干扰信号会影响基站的正常通信, 降低全双工无线通信系统的稳 定性, 因此需要对自干扰信号进行消除。
现有技术中, 主要通过全双工消除技术来进行自干扰信号的消除, 而全双工消除技术以射频消除法为主。由于射频消除法采用硬件来实现 自干扰信号的消除, 导致一些频带消除性能较好, 即自干扰消除后信号 功率较低, 另外一些频带消除性能较差, 即自干扰消除后的信号功率仍 然较高,采用该全双工消除技术进行自干扰信号消除后的信号频带具有 一定的频率选择性,在消除性能较差的频带采用全双工通信方式仍然会 影响基站的通信, 因此通信系统的稳定性较低。 发明内容
本发明的实施例提供一种基于自干扰消除技术的通信方法、 基站 及通信系统, 能够提高通信系统的稳定性。
为达到上述目的, 本发明的实施例采用如下技术方案:
本发明第一方面提供一种基于自干扰消除技术的通信方法,包括:
通过将自干扰消除后信号的功率与第一预设功率阈值做比较, 将 所述自干扰消除后信号的频带划分得到至少一个通信频带。
获取所述通信频带对应的通信方式。
发送所述通信频带及所述通信频带对应的通信方式至用户设备, 以便于所述用户设备根据所述通信频带及所述通信频带对应的通信方 式与基站进行通信。
结合第一方面的第一种可能实现方式, 所述第一预设功率阈值为 第一功率阈值, 所述通过将自干扰消除后信号的功率与第一预设功率 阈值做比较, 将所述自干扰消除后信号的频带划分得到至少一个通信 频带包括:
将所述自干扰消除后信号的功率与所述第一功率阈值做比较。 将所述自干扰消除后信号中功率小于等于所述第一功率阈值的信 号对应的频带划分为第一通信频带。
将所述自干扰消除后信号中功率大于所述第一功率阈值的信号对 应的频带划分为第二通信频带。
结合第一种可能实现方式的第二种可能实现方式, 所述获取所述 通信频带对应的通信方式包括:
获取所述第一通信频带对应的通信方式为全双工通信方式。
获取所述第二通信频带对应的通信方式为半双工通信方式。
结合第一方面的第三种可能实现方式, 所述第一预设功率阈值为 第二功率阈值和第三功率阈值, 所述第二功率阈值小于所述第三功率 阈值。
所述通过将自干扰消除后信号的功率与第一预设功率阈值做比 较,将所述自干扰消除后信号的频带划分得到至少一个通信频带包括: 将所述自干扰消除后信号的功率与所述第二功率阈值和所述第三 功率阈值同时做比较。
将所述自干扰消除后信号中功率小于等于所述第二功率阈值的信 号对应的频带划分为第三通信频带。
将所述自干扰消除后信号中功率小于等于所述第三功率阈值大于 所述第二功率阈值的信号对应的频带划分为第四通信频带。
将所述自干扰消除后信号中功率大于所述第三功率阈值的信号对 应的频带划分为第五通信频带。
结合第三种可能实现方式的第四种可能实现方式, 所述获取所述 通信频带对应的通信方式包括:
获取所述第三通信频带对应的通信方式为全双工通信方式。
获取所述第四通信频带对应的通信方式为协商通信方式, 所述协 商通信方式为所述基站根据所述用户设备的反馈信息确定的通信方 式。
获取所述第五通信频带对应的通信方式为半双工通信方式。
结合第一方面或第一至四种可能实现方式的第五种可能实现方 式, 当将所述自干扰消除后信号的频带划分得到一个通信频带, 且所 述通信频带对应的通信方式为全双工通信方式, 所述方法还包括: 通过将所述通信频带的功率与第二预设功率阈值做比较, 将所述 通信频带划分得到 n个子通信频带, n≥2。
将所述 n个子通信频带按照所述 n个子通信频带的最小功率由小 到大的顺序排列得到第 1子通信频带至第 n子通信频带。
按照发射功率由大到小的顺序为所述第 1子通信频带至第 n子通 信频带分配发射功率。
第二方面, 本发明实施例提供一种基站, 包括:
划分单元, 用于通过将自干扰消除后信号的功率与第一预设功率 阈值做比较, 将所述自干扰消除后信号的频带划分得到至少一个通信 频带, 并发送所述通信频带至获取单元。
获取单元, 用于接收所述划分单元发送的所述通信频带, 并获取 所述通信频带对应的通信方式, 发送所述通信频带及所述通信频带对 应的通信方式至发送单元。
发送单元, 用于接收所述获取单元发送的所述通信频带及所述通
信频带对应的通信方式, 并发送所述通信频带及所述通信频带对应的 通信方式至用户设备, 以便于所述用户设备根据所述通信频带及所述 通信频带对应的通信方式与所述基站进行通信。
结合第二方面的第一种可能实现方式, 所述第一预设功率阈值包 括: 第一功率阈值, 所述划分单元具体用于:
将所述自干扰消除后信号的功率与所述第一功率阈值做比较。 将所述自干扰消除后信号中功率小于等于所述第一功率阈值的信 号对应的频带划分为第一通信频带。
将所述自干扰消除后信号中功率大于所述第一功率阈值的信号对 应的频带划分为第二通信频带。
结合第一种可能的实现方式的第二种可能的实现方式, 所述获取 单元具体用于:
获取所述第一通信频带对应的通信方式为全双工通信方式。
获取所述第二通信频带对应的通信方式为半双工通信方式。
结合第二方面的第三种可能的实现方式, 所述第一预设功率阈值 包括: 第二功率阈值和第三功率阈值, 所述第二功率阈值小于所述第 三功率阈值。
所述划分单元具体用于:
将所述自干扰消除后信号的功率与所述第二功率阈值和所述第三 功率阈值同时做比较。
将所述自干扰消除后信号中功率小于等于所述第二功率阈值的信 号对应的频带划分为第三通信频带。
将所述自干扰消除后信号中功率小于等于所述第三功率阈值大于 所述第二功率阈值的信号对应的频带划分为第四通信频带。
将所述自干扰消除后信号中功率大于所述第三功率阈值的信号对 应的频带划分为第五通信频带。
结合第三种可能实现方式的第四种可能实现方式, 所述获取单元 具体用于:
获取所述第三通信频带对应的通信方式为全双工通信方式。
获取所述第四通信频带对应的通信方式为协商通信方式。
获取所述第五通信频带对应的通信方式为半双工通信方式。
结合第二方面或第一至四种可能实现方式的第五种可能实现方 式, 当将所述自干扰消除后信号的频带划分得到一个通信频带, 且所 述通信频带对应的通信方式为全双工通信方式, 所述基站还包括: 子频带划分单元, 用于通过将所述通信频带的功率与第二预设功 率阈值做比较, 将所述通信频带划分得到 n个子通信频带, n≥2, 并发 送所述子通信频带至排序单元。
排序单元,用于接收所述子频带划分单元发送的所述子通信频带, 并将所述 n个子通信频带按照所述 n个子通信频带的最小功率由小到 大的顺序排列得到第 1子通信频带至第 n子通信频带, 发送所述第 1 子通信频带至第 n子通信频带至配置单元。
配置单元, 用于接收所述排序单元发送的所述第 1子通信频带至 第 n子通信频带, 并按照发射功率由大到小的顺序为所述第 1子通信 频带至第 n子通信频带分配发射功率。
第三方面, 本发明实施例提供一种通信系统, 包括: 具有上述特 征的基站以及至少一个用户设备。
本发明实施例提供一种基于自干扰消除技术的通信方法、基站及通 信系统, 该基于自干扰消除技术的通信方法包括: 通过将自干扰消除后 信号的功率与第一预设功率阈值做比较,将所述自干扰消除后信号的频 带划分得到至少一个通信频带; 获取所述通信频带对应的通信方式; 发 送所述通信频带及所述通信频带对应的通信方式至用户设备,以便于所 述用户设备根据所述通信频带及所述通信频带对应的通信方式与基站 进行通信。这样一来, 当基站通过将自干扰消除后信号的频带划分得到 通信频带, 并获取对应的通信方式, 使得用户设备可以根据所述通信频 带及所述通信频带对应的通信方式灵活选择通信方式来进行通信,增加 了通信频带使用时的灵活性, 相对于现有技术, 减少了频率选择性对通 信的影响, 提高了通信系统的稳定性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1为本发明实施例提供的一种基于自干扰消除技术的通信方法 流程图;
图 2为本发明实施例提供的另一种基于自干扰消除技术的通信方 法流程图;
图 3为本发明实施例提供的一种频带划分方法示意图;
图 4为本发明实施例提供的又一种频带划分方法示意图; 图 5为本发明实施例提供的一种小区区域划分示意图;
图 6为本发明实施例提供的再一种基于自干扰消除技术的通信方 法流程图;
图 7为本发明实施例提供的再一种频带划分方法示意图; 图 8为本发明实施例提供的一种基站结构示意图;
图 9为本发明实施例提供的另一种基站结构示意图;
图 10为本发明实施例提供的再一种基站结构示意图 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进 行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的 范围。
本发明实施例提供一种基于自干扰消除技术的通信方法, 如图 1 所示, 包括:
S 101、 基站通过将自干扰消除后信号的功率与第一预设功率阈值
做比较,将所述自干扰消除后信号的频带划分得到至少一个通信频带。
S102、 基站获取所述通信频带对应的通信方式。
所述通信方式包括: 全双工通信方式和半双工通信方式。 所述半 双工通信 方式包括 : FDD ( Frequency Divi sion Dupl ex , 频分双工) 和 TDD ( Time Divi sion Dupl ex , 时分双工) 。 现有技术 中, TDD 是在同一频率的不同时隙来通信的, 不同的时隙可以分离发 送和接收的信息, 是一种双工通信技术, FDD 是在两个对称的频率信 道上发送和接收信息的, 也是一种双工通信技术, 本发明中称 TDD与 FDD 为半双工通信方式是相对于全双工通信方式来说的, 全双工通信 方式是在同一频率的同一时隙发送和接收信息的, 所以 TDD通信技术 与 FDD通信技术相对于全双工通信技术来说可以称为 TDD半双工通信 技术与 FDD半双工通信技术, 一般情况下, 在使用 TDD半双工通信技 术与 FDD半双工通信技术的通信系统中设置的半双工功率阈值是相同 的。
S103、 基站发送所述通信频带及所述通信频带对应的通信方式至 用户设备, 以便于所述用户设备根据所述通信频带及所述通信频带对 应的通信方式与基站进行通信。
这样一来, 基站通过将自干扰消除后信号的频带划分得到通信频 带, 并获取对应的通信方式, 使得用户设备可以根据所述通信频带及 所述通信频带对应的通信方式灵活选择通信方式来进行通信, 增加了 通信频带使用时的灵活性, 相对于现有技术, 减少了频率选择性对通 信的影响, 因此提高了通信系统的稳定性。
需要说明的是, 本发明实施例中的第一预设功率阈值可以是在频 带划分之前设置好的, 也可根据通信系统的需要灵活调整, 实际应用 中, 该第一预设功率阈值可以根据全双工通信方式或半双工通信方式 的通信要求具体设置。 所述第一预设功率阈值可以包括一个或多个功 率阈值, 通过不同的第一预设功率阈值可以将自干扰消除后信号的频 带划分得到至少一个通信频带。
示例的, 假设所述第一预设功率阈值为第一功率阈值。 本发明实 施例提供的一种基于自干扰消除技术的通信方法, 如图 2所示, 包括:
S201、基站对自干扰信号进行自干扰消除得到自干扰消除后信号。 本发明实施例通过全双工消除技术来进行自干扰信号的消除, 所 述全双工消除技术以射频消除法为主, 具体实施过程可以参考现有技 术, 本发明对此不做赘述。
S202、 基站通过将自干扰消除后信号的功率与第一功率阈值做比 较, 将所述自干扰消除后信号的频带划分得到至少一个通信频带。
首先, 基站可以将所述自干扰消除后信号的功率与所述第一功率 阈值做比较; 然后, 基站将所述自干扰消除后信号中功率小于等于所 述第一功率阈值的信号对应的频带划分为第一通信频带, 将所述自干 扰消除后信号中功率大于所述第一功率阈值的信号对应的频带划分为 第二通信频带。
如图 3所示, 曲线 M表示基站接收的自干扰信号的功率, 曲线 N 表示自干扰消除后的信号的功率, 功率 P为第一功率阈值, 该第一功 率阈值为全双工通信方式中根据具体通信质量要求设置的自干扰消除 后信号功率门限值。 通过将所述自干扰消除后信号的功率与所述第一 功率阈值做比较, 将自干扰消除后信号对应的频带划分为频带 A、 频 带 B和频带 C。 其中, 频带 A为自干扰消除后信号中功率小于等于所 述第一功率阈值的信号对应的频带, 即第一通信频带, 该第一通信频 带的自干扰消除性能较好, 且符合全双工通信方式的通信要求; 频带 B与频带 C 为自干扰消除后信号中功率大于所述第一功率阈值的信号 对应的频带, 即第二通信频带, 该第二通信频带的自干扰消除性能较 差, 消除性能不符合全双工通信方式的通信要求。
S203、 基站获取所述通信频带对应的通信方式。
由于第一通信频带的自干扰消除性能较好, 且符合全双工通信方 式的通信要求, 可以获取所述第一通信频带对应的通信方式为全双工 通信方式; 由于第二通信频带的自干扰消除性能较差, 消除性能不符 合全双工通信方式的通信要求, 可以获取所述第二通信频带对应的通 信方式为半双工通信方式。 如图 3所示, 频带 A对应的通信方式为全 双工通信方式, 频带 B和频带 C对应的通信方式为半双工通信方式。
5204、 基站发送所述通信频带及所述通信频带对应的通信方式至 用户设备。
基站可以通过广播方式将所述通信频带及所述通信频带对应的通 信方式发送至通信系统中的所有用户设备, 以便于所述用户设备根据 所述通信频带及所述通信频带对应的通信方式与基站进行通信。
5205、 用户设备根据所述通信频带及所述通信频带对应的通信方 式与基站进行通信。
当用户设备利用第一通信频带通信时, 该用户设备根据所述通信 频带及所述通信频带对应的通信方式获知该第一通信频带对应的通信 方式为全双工通信方式, 则该用户设备采用全双工通信方式与基站进 行通信。
当用户设备利用第二通信频带通信时, 该用户设备根据所述通信 频带及所述通信频带对应的通信方式获知该第二通信频带对应的通信 方式为半双工通信方式, 则该用户设备采用半双工通信方式与基站进 行通信。
需要说明的是,当歩骤 S202将所述自干扰消除后信号的频带划分 得到一个通信频带, 且所述通信频带对应的通信方式为全双工通信方 式, 如图 4所示。 所述方法还包括: 通过将所述通信频带的功率与第 二预设功率阈值做比较, 将所述通信频带划分得到 n个子通信频带, n≥2, 所述第二预设功率阈小于所述第一预设功率阈值; 将所述 n个子 通信频带按照所述 n个子通信频带的最小功率由小到大的顺序排列得 到第 1子通信频带至第 n子通信频带; 按照发射功率由大到小的顺序 为所述第 1子通信频带至第 n子通信频带分配发射功率。
示例的, 假设所述第二预设功率阈值为第四功率阈值 X和第五功 率阈值 Y , 所述第四功率阈值 X大于所述第五功率阈值¥。 曲线 M表示 基站接收的自干扰信号功率, 曲线 N表示自干扰消除后的信号功率, 功率 P为第一功率阈值, 该第一功率阈值为全双工通信方式中根据具 体通信质量要求设置的自干扰消除后信号功率门限值;在实际应用中, 第四功率阈值 X和第五功率阈值 Y可以根据具体情况设置。 通过将所 述自干扰消除后信号的功率与所述第一功率阈值做比较, 将所述自干
扰消除后信号的频带划分得到一个通信频带, 且所述通信频带对应的 通信方式为全双工通信方式。 然后, 通过将所述通信频带的功率与第 四功率阈值 X和第五功率阈值 Y做比较, 得到小于等于第五功率阈值 Y的子通信频带 D即第一子通信频带, 得到大于第五功率阈值 Y小于 等于第四功率阈值 X的子通信频带 E和子通信频带 G , 即第二子通信 频带, 以及大于第四功率阈值 X的子通信频带 F即第三子通信频带, 按照所述 3个子通信频带的最小功率由小到大的顺序排列得到第一子 通信频带、 第二子通信频带和第三子通信频带, 然后按照发射功率由 大到小的顺序为所述第一子通信频带、 第二子通信频带和第三子通信 频带分配发射功率为第一发射功率、 第二发射功率和第三发射功率。
进一歩的, 第一子通信频带的自干扰消除性能较好, 对第一子通 信频带分配第一发射功率的功率较高, 在基站通信时, 可以将所述第 一子通信频带内各频点作为主载波使用,覆盖基站管理的小区的全部, 即图 5中所示的区域 A , 该区域 A为以点 0为圆心以 a为半径的圆形 区域, 所述圆心 0为基站所在位置, 所述半径 a是由当前基站发射功 率的最大值确定的, 该当前基站发射功率的最大值可以根据现有技术 的规定由所述第五功率阈值 Y计算得到。
第二子通信频带的自干扰消除性能介于第一子通信频带和第三子 通信频带的自干扰消除性能之间, 对第二子通信频带分配第二发射功 率的功率大小介于第一发射功率和第三发射功率之间,在基站通信时, 可以将所述第二子通信频带内各频点作为第一辅载波使用, 覆盖基站 管理的小区的大部分, 即图 5中所示的区域 B , 该区域 B为以点 0为 圆心以 b为半径的圆形区域, 所述圆心 0为基站所在的位置, 所述半 径 b是由当前基站发射功率的最大值确定的, 该当前基站发射功率的 最大值可以根据现有技术的规定由所述第四功率阈值 X计算得到。
第三子通信频带的自干扰消除性能较差, 对第三子通信频带分配 第三发射功率的功率较低, 在基站通信时, 将所述第三子通信频带内 各频点作为第二辅载波使用, 覆盖基站管理的小区的小部分。 即图 5 中所示的区域 C , 该区域 C为以点 0为圆心以 c为半径的圆形区域, 所述圆心 0为基站所在的位置, 所述半径 c是由当前基站发射功率的
最大值确定的, 该当前基站发射功率的最大值可以根据现有技术的规 定由所述第一功率阈值 P计算得到。
如图 4所示, 在基站通信时, 频带 D中各频点作为主载波使用, 频带 E和频带 G中各频点作为第一辅载波使用, 频带 F中各频点作为 第二辅载波使用。 需要说明的是, 图 5中所述区域 A、 区域 B和区域 C 是所述基站管理的相同小区的不同区域, 所述区域 、 区域 B和区域 C 满足如下数学关系 C c (= ^。
基站可以通过广播方式将所述通信频带、 所述通信频带中各频点 使用的载波类型以及所述通信频带使用的发射功率值等相关信息发送 至通信系统中的所有用户设备, 以便于所述用户设备根据所述通信频 带、 所述通信频带中各频点使用的载波类型以及所述通信频带使用的 发射功率值等相关信息与基站进行通信。
示例的, 如图 5所示, 由于第一子通信频带内各频点作为主载波 使用, 覆盖基站管理的小区的全部, 第二子通信频带内各频点作为第 一辅载波使用, 覆盖基站管理的小区的大部分, 第三子通信频带内各 频点作为第二辅载波使用, 覆盖基站管理的小区的小部分。 当用户设 备处于以点 0为圆心、 半径 r满足6 < ≤ "的环形区域内部时, 基站可 以通知用户设备使用第一子通信频带内的频点进行全双工通信; 当用 户设备处于以点 0为圆心、 半径 r满足 C < ≤6的环形区域内部时, 基 站通知用户设备使用第二子通信频带内的频点进行全双工通信, 特别 的, 当小区承载的业务过多, 且小区的信道利用率过高时, 基站也可 以根据具体情况通知用户设备使用第一子通信频带内的频点进行全双 工通信; 当用户处于以点 0为圆心, 半径 r满足 的圆形区域内, 基站通知用户设备使用第三子通信频带内的频点进行全双工通信, 特 别的, 当小区承载的业务过多, 且小区的信道利用率过高时, 基站可 以通知用户设备使用第一子通信频带或第二子通信频带内的频点进行 通信。 这样一来, 基站可以根据用户设备所处的位置确定相应的子通 信频带来与用户设备进行通信, 而不同的子通信频带对应了不同的发 射功率, 提高了通信的灵活性, 并且可以减少功耗。
需要说明的是, 所述用户设备的位置可以由用户设备向基站发送
位置信息, 如 TA ( Timing Advance , 时间提前量) 等, 使基站获知。 特别的, 所述第二预设功率阈值可以为 1个或多个, 本发明只是示意 性说明,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到变化或替换, 在此不再详述。
这样一来, 当采用全双工消除技术消除自干扰后的信号的频带全 部满足全双工通信方式的要求时, 基站能够将所述通信频带的功率与 第二预设功率阈值做比较,将所述通信频带划分得到 n个子通信频带, 并对排序后的 n个子通信频带分配适当的发射功率。 通信时, 基站通 知用户设备选择合适的通信频带及通信频带对应的通信方式, 充分利 用了全双工消除技术消除自干扰后的信号的频带的特点, 降低了误码 率, 提高了通信质量, 从而提高了通信系统的稳定性。
示例的, 假设所述第一预设功率阈值为第二功率阈值和第三功率 阈值, 所述第二功率阈值小于所述第三功率阈值。 本发明实施例提供 的另一种基于自干扰消除技术的通信方法, 如图 6所示, 包括:
S601、基站对自干扰信号进行自干扰消除得到自干扰消除后信号。 本发明实施例通过全双工消除技术来进行自干扰信号的消除, 所 述全双工消除技术以射频消除法为主, 具体实施过程可以参考现有技 术, 本发明对此不做赘述。
S602、 基站通过将所述自干扰消除后信号的功率与所述第二功率 阈值和所述第三功率阈值同时做比较, 将所述自干扰消除后信号的频 带划分得到至少一个通信频带。
首先, 基站可以将所述自干扰消除后信号的功率与所述第二功率 阈值和第三功率阈值做比较; 然后, 基站将所述自干扰消除后信号中 功率小于等于所述第二功率阈值的信号对应的频带划分为第三通信频 带; 将所述自干扰消除后信号中功率大于所述第二功率阈值小于等于 第三功率阈值的信号对应的频带划分为第四通信频带, 将所述自干扰 消除后信号中功率大于所述第三功率阈值的信号对应的频带划分为第 五通信频带。
如图 7所示, 曲线 M表示基站接收的自干扰信号的功率, 曲线 N 表示自干扰消除后的信号的功率, 功率 R为第二功率阈值, 该第二功
率阈值为全双工通信方式中根据具体通信质量要求设置的自干扰消除 后信号功率门限值, 功率 s为第三功率阈值, 该第三功率阈值为半双 工通信方式中根据具体通信质量要求设置的自干扰消除后信号功率门 限值。 通过将所述自干扰消除后信号的功率与所述第二功率阈值和所 述第三功率阈值做比较, 将自干扰消除后信号对应的频带划分为频带 U、 频带 V、 频带 T和频带 W。 其中, 频带 V为自干扰消除后信号中功 率小于等于所述第二功率阈值的信号对应的频带, 即第三通信频带, 该第三通信频带的自干扰消除性能较好, 且符合全双工通信方式的通 信要求; 频带 u与频带 T为自干扰消除后信号中功率大于所述第二功 率阈值小于等于所述第三功率阈值的信号对应的频带, 即第四通信频 带, 该第四通信频带的自干扰消除性能介于第三通信频带和第五通信 频带之间; 频带 w为自干扰消除后信号中功率大于所述第三功率阈值 的信号对应的频带, 与第三通信频带和第四通信频带的自干扰消除性 能相比, 该频带自干扰消除性能最差, 消除性能不符合全双工通信方 式的通信要求。
5603、 基站获取所述通信频带对应的通信方式。
由于第三通信频带的自干扰消除性能较好, 且符合全双工通信方 式的通信要求, 可以获取所述第三通信频带对应的通信方式为全双工 通信方式; 由于第四通信频带的自干扰消除性能介于第三通信频带和 第五通信频带之间, 可以获取所述第四通信频带对应的通信方式为协 商通信方式; 由于第五通信频带的自干扰消除性能最差, 消除性能不 符合全双工通信方式的通信要求, 可以获取所述第五通信频带对应的 通信方式为半双工通信方式。 所述协商通信方式为所述基站根据所述 用户设备的反馈信息确定的通信方式。 如图 7所示, 频带 V对应的通 信方式为全双工通信方式, 频带 U和频带 T对应的通信方式为协商通 信方式, 频带 W对应的通信方式为半双工通信方式。
5604、 基站发送所述通信频带及所述通信频带对应的通信方式至 用户设备。
基站可以通过广播方式将所述通信频带及所述通信频带对应的通 信方式发送至通信系统中的所有用户设备, 以便于所述用户设备根据
所述通信频带及所述通信频带对应的通信方式与基站进行通信。
S605、 用户设备根据所述通信频带及所述通信频带对应的通信方 式与基站进行通信。
当用户设备利用第三通信频带通信时, 该用户设备根据所述通信 频带及所述通信频带对应的通信方式获知该第三通信频带对的通信方 式为全双工通信方式, 则该用户设备采用全双工通信方式与基站进行 通信。
当用户设备利用第四通信频带通信时, 该用户设备根据所述通信 频带及所述通信频带对应的通信方式获知该第四通信频带对的通信方 式为协商通信方式,则该用户设备采用协商通信方式与基站进行通信。
所述协商通信方式指示基站通过用户设备的反馈信息确定用户设 备当前通信方式。 具体的, 所述反馈信息包括: 用户设备测量到的所 述基站的发射功率、 外界邻区基站干扰等信息, 所述基站根据用户设 备测量到的所述基站的发射功率、 外界邻区基站干扰等信息, 确定所 述信息对该基站自干扰消除性能的影响, 若自干扰消除后信号的强度 达到的功率值小于等于基站接收机灵敏度的最小值, 确定用户设备使 用全双工通信方式; 若自干扰消除后信号的功率值大于基站接收机灵 敏度的最小值, 确定用户设备使用半双工通信方式。 需要说明的是, 所述基站接收机灵敏度的最小值可以参考现有技术中的协议进行设 置, 如 TS36. 101, 这里不再赘述。 进一歩的, 当通过协商通信方式确 定了用户设备的通信方式后, 基站向用户设备发送信息指示该用户设 备采用所述协商通信方式确定的通信方式进行通信。
当用户设备利用第五通信频带通信时, 该用户设备根据所述通信 频带及所述通信频带对应的通信方式获知该第五通信频带对应的通信 方式为半双工通信方式, 则该用户设备采用半双工通信方式与基站进 行通信。
需要说明的是,本发明实施例提供的基于自干扰消除技术的通信 方法的先后顺序可以进行适当调整, 歩骤也可以根据情况进行相应增 减, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到变化的方法, 因此不再赘述。
在实际应用中, 当用户设备利用通信频带进行通信时对应的通信 方式为半双工通信方式时, 由于半双工通信方式包含 TDD半双工通信 方式和 FDD半双工通信方式, 该用户设备对实际采用的通信方式的选 择是根据该用户设备的通信制式决定的。
本发明实施例提供的一种基于自干扰消除技术的通信方法, 该通 信方法中基站可以根据自干扰消除后信号频带的特点将自干扰消除后 信号的频带划分得到多个通信频带, 并获取对应的通信方式, 使得用 户设备可以根据所述通信频带及所述通信频带对应的通信方式灵活选 择通信方式来进行通信, 增加了通信频带使用时的灵活性。 本发明实施例提供一种基站 80, 包括:
划分单元 801, 用于通过将自干扰消除后信号的功率与第一预设 功率阈值做比较, 将所述自干扰消除后信号的频带划分得到至少一个 通信频带, 并发送所述通信频带至获取单元 802。
所述第一预设功率阈值包括: 第一功率阈值。
所述第一预设功率阈值还可以包括: 第二功率阈值和第三功率阈 值, 所述第二功率阈值小于所述第三功率阈值。
获取单元 802, 用于接收所述划分单元 801发送的所述通信频带, 并获取所述通信频带对应的通信方式, 发送所述通信频带及所述通信 频带对应的通信方式至发送单元 803。
所述通信频带对应的通信方式可以是全双工通信方式, 也可以是 半双工通信方式。
发送单元 803, 用于接收所述获取单元 802 发送的所述通信频带 及所述通信频带对应的通信方式, 并发送所述通信频带及所述通信频 带对应的通信方式至用户设备, 以便于所述用户设备根据所述通信频 带及所述通信频带对应的通信方式与基站进行通信。
这样一来, 划分单元通过将自干扰消除后信号的频带划分得到通 信频带, 获取单元获取对应的通信方式, 使得用户设备可以根据发送 单元发送的所述通信频带及所述通信频带对应的通信方式灵活选择通 信方式来进行通信, 增加了通信频带使用时的灵活性, 相对于现有技
术, 减少了频率选择性对通信的影响, 因此提高了通信系统的稳定性。 所述划分单元 801具体用于将所述自干扰消除后信号的功率与所 述第一功率阈值做比较; 将所述自干扰消除后信号中功率小于等于所 述第一功率阈值的信号对应的频带划分为第一通信频带; 将所述自干 扰消除后信号中功率大于所述第一功率阈值的信号对应的频带划分为 第二通信频带。
所述获取单元 802具体用于获取所述第一通信频带对应的通信方 式为全双工通信方式; 获取所述第二通信频带对应的通信方式为半双 工通信方式。
所述划分单元 801还用于将所述自干扰消除后信号的功率与所述 第二功率阈值和所述第三功率阈值同时做比较; 将所述自干扰消除后 信号中功率小于等于所述第二功率阈值的信号对应的频带划分为第三 通信频带; 将所述自干扰消除后信号中功率小于等于所述第三功率阈 值大于所述第二功率阈值的信号对应的频带划分为第四通信频带; 将 所述自干扰消除后信号中功率大于所述第三功率阈值的信号对应的频 带划分为第五通信频带。
所述获取单元 802还用于: 获取所述第三通信频带对应的通信方 式为全双工通信方式; 获取所述第四通信频带对应的通信方式为协商 通信方式;获取所述第五通信频带对应的通信方式为半双工通信方式。
进一歩的, 如图 9所示, 所述基站 80还包括:
子频带划分单元 804, 用于通过将所述通信频带的功率与第二预 设功率阈值做比较, 将所述通信频带划分得到 n个子通信频带, n≥2, 并发送所述子通信频带至排序单元 805。
排序单元 805, 用于接收所述子频带划分单元 804发送的所述子 通信频带, 并将所述 n个子通信频带按照所述 n个子通信频带的最小 功率由小到大的顺序排列得到第 1子通信频带至第 n子通信频带, 发 送所述第 1子通信频带至第 n子通信频带至配置单元 806。
配置单元 806, 用于接收所述排序单元 805发送的所述第 1子通 信频带至第 n子通信频带, 并按照发射功率由大到小的顺序为所述第 1子通信频带至第 n子通信频带分配发射功率。
这样一来, 采用全双工消除技术消除自干扰后的信号的频带全部
满足全双工通信方式的要求时, 子频带划分单元能够将所述通信频带 的功率与第二预设功率阈值做比较, 将所述通信频带划分得到 n个子 通信频带, 并由配置单元对排序后的 n个子通信频带分配适当的发射 功率。 通信时, 基站通知用户设备选择合适的通信方式, 充分利用了 全双工消除技术消除自干扰后的信号的频带的特点, 提高了通信系统 的稳定性。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描述的基站中涉及的具体歩骤, 可以参考前述基于自干扰消除技 术的通信方法的实施例中的对应过程, 在此不再赘述。
本发明实施例提供的基站, 划分单元通过将自干扰消除后信号的 频带划分得到通信频带, 获取单元获取对应的通信方式, 使得用户设 备可以根据发送单元发送的所述通信频带及所述通信频带对应的通信 方式灵活选择通信方式来进行通信,增加了通信频带使用时的灵活性, 相对于现有技术, 减少了频率选择性对通信的影响, 因此提高了通信 系统的稳定性。 本发明实施例提供一种基站 90, 如图 10所示, 包括:
处理器 901, 用于通过将自干扰消除后信号的功率与第一预设功 率阈值做比较, 将所述自干扰消除后信号的频带划分得到至少一个通 信频带, 获取所述通信频带对应的通信方式, 并发送所述通信频带及 通信频带的通信方式至发射机 902。
所述第一预设功率阈值为第一功率阈值, 所述第一预设功率阈值 也可以为第二功率阈值和第三功率阈值, 所述第二功率阈值小于所述 第三功率阈值。
所述获取所述通信频带对应的通信方式包括:
获取所述第一通信频带对应的通信方式为全双工通信方式; 获取 所述第二通信频带对应的通信方式为半双工通信方式。
发射机 902, 用于接收所述处理器 901 发送的所述通信频带及所 述通信频带对应的通信方式, 并发送所述通信频带及所述通信频带对 应的通信方式至用户设备, 以便于所述用户设备根据所述通信频带及
所述通信频带对应的通信方式与基站进行通信。
这样一来, 处理器通过将自干扰消除后信号的频带划分得到通信 频带, 获取对应的通信方式, 使得用户设备可以根据发射机发送的所 述通信频带及所述通信频带对应的通信方式灵活选择通信方式来进行 通信, 增加了通信频带使用时的灵活性, 相对于现有技术, 减少了频 率选择性对通信的影响, 因此提高了通信系统的稳定性。
所述处理器 901具体用于: 将自干扰消除后信号的功率与第一预 设功率阈值做比较, 将所述自干扰消除后信号的频带划分得到至少一 个通信频带包括: 将所述自干扰消除后信号的功率与所述第一功率阈 值做比较; 将所述自干扰消除后信号中功率小于等于所述第一功率阈 值的信号对应的频带划分为第一通信频带; 将所述自干扰消除后信号 中功率大于所述第一功率阈值的信号对应的频带划分为第二通信频 带。
所述处理器 901还可用于: 通过将自干扰消除后信号的功率与第 一预设功率阈值做比较, 将所述自干扰消除后信号的频带划分得到至 少一个通信频带还包括: 将所述自干扰消除后信号的功率与所述第二 功率阈值和所述第三功率阈值同时做比较; 将所述自干扰消除后信号 中功率小于等于所述第二功率阈值的信号对应的频带划分为第三通信 频带; 将所述自干扰消除后信号中功率小于等于所述第三功率阈值大 于所述第二功率阈值的信号对应的频带划分为第四通信频带; 将所述 自干扰消除后信号中功率大于所述第三功率阈值的信号对应的频带划 分为第五通信频带。
所述获取所述通信频带对应的通信方式包括: 获取所述第三通信 频带对应的通信方式为全双工通信方式; 获取所述第四通信频带对应 的通信方式为协商通信方式, 所述协商通信方式为所述基站根据所述 用户设备的反馈信息确定的通信方式; 获取所述第五通信频带对应的 通信方式为半双工通信方式。
当将所述自干扰消除后信号的频带划分得到一个通信频带, 且所 述通信频带对应的通信方式为全双工通信方式时, 所述处理器 901还 可用于: 通过将所述通信频带的功率与第二预设功率阈值做比较, 将
所述通信频带划分得到 n个子通信频带, n≥2 ; 将所述 n个子通信频带 按照所述 n个子通信频带的最小功率由小到大的顺序排列得到第 1子 通信频带至第 n子通信频带; 按照发射功率由大到小的顺序为所述第 1子通信频带至第 n子通信频带分配发射功率。
本发明实施例提供的基站中, 处理器通过将自干扰消除后信号的 频带划分得到通信频带, 获取对应的通信方式, 使得用户设备可以根 据发射机发送的所述通信频带及所述通信频带对应的通信方式灵活选 择通信方式来进行通信, 增加了通信频带使用时的灵活性, 相对于现 有技术, 减少了频率选择性对通信的影响, 因此提高了通信系统的稳 定性。
本发明实施例提供一种通信系统, 包括本发明实施例提供的任意 的基站以及用户设备。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实 施例仅仅是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能 划分, 实际实现时可以有另外的划分方式, 例如多个单元或组件可以 结合或者可以集成到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦合或直接耦合或通信连接可以 是通过一些接口, 装置或单元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开 的, 作为单元显示的部件可以是或者也可以不是物理单元, 即可以位 于一个地方, 或者也可以分布到多个网络单元上。 可以根据实际的需 要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理 单元中, 也可以是各个单元单独物理包括, 也可以两个或两个以上单 元集成在一个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分歩 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机
可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的歩骤; 而前述的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代 码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不 局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围 内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此, 本发明的保护范围应以所述权利要求的保护范围为准。
Claims
1、 一种基于自干扰消除技术的通信方法, 包括:
通过将自干扰消除后信号的功率与第一预设功率阈值做比较, 所述 少一个通信频带;
发送所述通信频带及所述通信频带对应的通信方式至用户设备, 以便于所述用户设备根据所述通信频带及所述通信频带对应的通信方 式与基站进行通信。
2、 根据权利要求 1所述的方法, 所述第一预设功率阈值为第一功 率阈值, 所述通过将自干扰消除后信号的功率与第一预设功率阈值做 比较, 将所述自干扰消除后信号的频带划分得到至少一个通信频带包 括:
将所述自干扰消除后信号的功率与所述第一功率阈值做比较; 将所述自干扰消除后信号中功率小于等于所述第一功率阈值的信 号对应的频带划分为第一通信频带;
将所述自干扰消除后信号中功率大于所述第一功率阈值的信号对 应的频带划分为第二通信频带。
3、 根据权利要求 2所述的方法, 所述获取所述通信频带对应的通 信方式包括:
获取所述第一通信频带对应的通信方式为全双工通信方式; 获取所述第二通信频带对应的通信方式为半双工通信方式。
4、 根据权利要求 1所述的方法, 所述第一预设功率阈值为第二功 率阈值和第三功率阈值, 所述第二功率阈值小于所述第三功率阈值; 所述通过将自干扰消除后信号的功率与第一预设功率阈值做比 较,将所述自干扰消除后信号的频带划分得到至少一个通信频带包括: 将所述自干扰消除后信号的功率与所述第二功率阈值和所述第三 功率阈值同时做比较;
将所述自干扰消除后信号中功率小于等于所述第二功率阈值的信 号对应的频带划分为第三通信频带;
将所述自干扰消除后信号中功率小于等于所述第三功率阈值大于 所述第二功率阈值的信号对应的频带划分为第四通信频带;
将所述自干扰消除后信号中功率大于所述第三功率阈值的信号对 应的频带划分为第五通信频带。
5、 根据权利要求 4所述的方法, 所述获取所述通信频带对应的通 信方式包括:
获取所述第三通信频带对应的通信方式为全双工通信方式; 获取所述第四通信频带对应的通信方式为协商通信方式, 所述协 商通信方式为所述基站根据所述用户设备的反馈信息确定的通信方 式;
获取所述第五通信频带对应的通信方式为半双工通信方式。
6、 根据权利要求 1至 5任意一项权利要求所述的方法, 当将所述 自干扰消除后信号的频带划分得到一个通信频带, 且所述通信频带对 应的通信方式为全双工通信方式, 所述方法还包括:
通过将所述通信频带的功率与第二预设功率阈值做比较, 将所述 通信频带划分得到 n个子通信频带, n≥2 ;
将所述 n个子通信频带按照所述 n个子通信频带的最小功率由小 到大的顺序排列得到第 1子通信频带至第 n子通信频带;
按照发射功率由大到小的顺序为所述第 1子通信频带至第 n子通 信频带分配发射功率。
7、 一种基站, 包括:
划分单元, 用于通过将自干扰消除后信号的功率与第一预设功率 阈值做比较, 将所述自干扰消除后信号的频带划分得到至少一个通信 频带, 并发送所述通信频带至获取单元;
获取单元, 用于接收所述划分单元发送的所述通信频带, 并获取 所述通信频带对应的通信方式, 发送所述通信频带及所述通信频带对 应的通信方式至发送单元;
发送单元, 用于接收所述获取单元发送的所述通信频带及所述通 信频带对应的通信方式, 并发送所述通信频带及所述通信频带对应的 通信方式至用户设备, 以便于所述用户设备根据所述通信频带及所述 通信频带对应的通信方式与所述基站进行通信。
8、 根据权利要求 7所述的基站, 所述第一预设功率阈值包括: 第 一功率阈值,
所述划分单元具体用于:
将所述自干扰消除后信号的功率与所述第一功率阈值做比较; 将所述自干扰消除后信号中功率小于等于所述第一功率阈值的信 号对应的频带划分为第一通信频带;
将所述自干扰消除后信号中功率大于所述第一功率阈值的信号对 应的频带划分为第二通信频带。
9、 根据权利要求 8所述的基站,
所述获取单元具体用于:
获取所述第一通信频带对应的通信方式为全双工通信方式; 获取所述第二通信频带对应的通信方式为半双工通信方式。
10、 根据权利要求 7所述的基站, 所述第一预设功率阈值包括: 第二功率阈值和第三功率阈值, 所述第二功率阈值小于所述第三功率 阈值;
所述划分单元具体用于:
将所述自干扰消除后信号的功率与所述第二功率阈值和所述第三 功率阈值同时做比较;
将所述自干扰消除后信号中功率小于等于所述第二功率阈值的信 号对应的频带划分为第三通信频带;
将所述自干扰消除后信号中功率小于等于所述第三功率阈值大于 所述第二功率阈值的信号对应的频带划分为第四通信频带;
将所述自干扰消除后信号中功率大于所述第三功率阈值的信号对 应的频带划分为第五通信频带。
11、 根据权利要求 10所述的基站,
所述获取单元具体用于:
获取所述第三通信频带对应的通信方式为全双工通信方式; 获取所述第四通信频带对应的通信方式为协商通信方式; 获取所述第五通信频带对应的通信方式为半双工通信方式。
12、 根据权利要求 7至 11任意一项权利要求所述的基站, 当将所 述自干扰消除后信号的频带划分得到一个通信频带, 且所述通信频带 对应的通信方式为全双工通信方式, 所述基站还包括:
子频带划分单元, 用于通过将所述通信频带的功率与第二预设功
率阈值做比较, 将所述通信频带划分得到 n个子通信频带, n≥2, 并发 送所述子通信频带至排序单元;
排序单元,用于接收所述子频带划分单元发送的所述子通信频带, 并将所述 n个子通信频带按照所述 n个子通信频带的最小功率由小到 大的顺序排列得到第 1子通信频带至第 n子通信频带, 发送所述第 1 子通信频带至第 n子通信频带至配置单元;
配置单元, 用于接收所述排序单元发送的所述第 1子通信频带至 第 n子通信频带, 并按照发射功率由大到小的顺序为所述第 1子通信 频带至第 n子通信频带分配发射功率。
13、 一种通信系统, 包括:
权利要求 7至 12任意一项权利要求所述的基站;
至少一个用户设备。
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