WO2016123766A1 - 信号处理方法和相关设备 - Google Patents

信号处理方法和相关设备 Download PDF

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Publication number
WO2016123766A1
WO2016123766A1 PCT/CN2015/072252 CN2015072252W WO2016123766A1 WO 2016123766 A1 WO2016123766 A1 WO 2016123766A1 CN 2015072252 W CN2015072252 W CN 2015072252W WO 2016123766 A1 WO2016123766 A1 WO 2016123766A1
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Prior art keywords
signal
received signal
delay
received
channel
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PCT/CN2015/072252
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English (en)
French (fr)
Inventor
陈子欢
李昆
�龙昊
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201580075507.6A priority Critical patent/CN107210809B/zh
Priority to EP15880722.2A priority patent/EP3244552A4/en
Priority to PCT/CN2015/072252 priority patent/WO2016123766A1/zh
Publication of WO2016123766A1 publication Critical patent/WO2016123766A1/zh
Priority to US15/668,602 priority patent/US10177824B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0891—Space-time diversity
    • H04B7/0897—Space-time diversity using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1081—Reduction of multipath noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0882—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using post-detection diversity
    • H04B7/0885—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using post-detection diversity with combination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/005—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by adjustment in the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a signal processing method and related equipment.
  • LTE Long Term Evolution
  • the communication system based on LTE technology, 4G technology and 5G technology small stations will be deployed intensively. Wireless backhaul will accelerate in the future, and the future return of millimeter wave may become mainstream.
  • the dense deployment of small stations is often in densely populated areas, while the densely populated areas often have complex communication environments, such as neighborhood environments. Therefore, the small station backhaul communication scenario is different from the conventional millimeter wave communication environment, and will become complicated, and more non-line-of-sight communication environments will appear.
  • the non-line-of-sight communication environment poses a challenge to the millimeter-wave small station backhaul.
  • the main challenges include: channel fading and channel multipath become very complicated. For large fading scenarios, traditional antenna schemes are generally used to improve antenna gain and spatial diversity techniques.
  • the inventor of the present invention found in the research and practice that for multipath scenarios, the conventional scheme generally directly eliminates all multipath signals as interference, which makes the signal receiving gain in the multipath scenario low.
  • the embodiments of the present invention provide a signal processing method and related equipment, so as to improve signal receiving gain in a multipath scenario.
  • a first aspect of the embodiments of the present invention provides a signal processing method, including:
  • the N-channel delay-compensated received signal is combined and processed.
  • the determining the N directions of the received signals corresponding to the same signal source includes: performing omnidirectional scanning by using an antenna to determine that there are X1 directions of the received signals corresponding to the same signal source; and comparing the received signal powers in the X1 directions
  • the larger N directions are determined to be N directions of received signals corresponding to the same signal source, the X1 being an integer and the X1 being greater than or equal to the N.
  • the configuring a beam direction of the antenna into the N directions includes:
  • the beam directions of the N single beam antennas are configured into the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the method further includes: performing equalization processing on the N received signals received by the antenna to obtain the received signals after the N equalization processing;
  • estimating a delay of the N received signals received by the antenna, and delaying compensation of the N received signals by using the estimated delay of the N received signals to obtain a received signal after N delay compensation include:
  • the processing of the N-channel delay-compensated received signal includes:
  • the calculating the combined weight of the received signal after the N-way delay compensation comprises: a square error criterion for calculating a combined weight of the received signal after the N-way delay compensation; or calculating a combined weight of the received signal after the N-way delay compensation based on a least squares criterion; or based on a maximum signal-to-noise ratio criterion Calculating a combined weight of the received signal after the N-way delay compensation.
  • estimating the delay of the received signal after the N equalization processing including:
  • estimating the delay of the received signal after the N equalization processing including:
  • the method further includes: performing equalization processing on the N-channel delay-compensated received signal to obtain an N-channel equalized received signal;
  • the combining the processing of the N-channel delay-compensated received signal includes combining the received signals of the N-channel equalization processing.
  • the combining the received signals after the N equalization processing includes:
  • the calculating the combined weight of the received signal after the N equalization processing comprises: based on a minimum average
  • the square error criterion calculates a combined weight of the received signal after the N equalization processing; or calculates a combined weight of the received signal after the N equalized processing based on a least squares criterion; or based on a maximum signal to noise ratio criterion Calculating a combined weight of the received signal after the N equalization process.
  • the eleventh possible implementation of the first aspect includes:
  • Calculating the delay time of the N-channel received signal, and the delay time Ti of the ith-channel received signal is the sum of the signal sequences entering the sliding window in the ith channel received signal in the training sequence insertion period And a receiving moment of a signal sequence having a maximum cross-correlation value between the training sequences, wherein the i-th received signal is any one of the N received signals; and based on the calculated delay of the N received signals The delay of the N received signals is calculated at all times.
  • the twelfth possible implementation of the first aspect includes:
  • the method further includes: performing an omnidirectional scan using an antenna to determine that there are X2 directions corresponding to the received signal of the same signal source; and receiving signals of the received signal in the direction Xi in the X2 directions are greater than the received signal of the direction Xj Modifying the beam direction configuration of the antenna such that the beam direction of the modified antenna includes the direction Xi, the direction Xi being different from any one of the N directions.
  • the direction Xj is any one of the N directions.
  • a second aspect of the embodiments of the present invention provides a signal processing apparatus, including:
  • a controller configured to determine that there are N directions corresponding to the received signal of the same signal source; and configure a beam direction of the antenna into the N directions;
  • a delay estimating circuit configured to estimate a delay of the N received signals received by the antenna, wherein the N received signals are in one-to-one correspondence with the N directions, and the N is an integer greater than 1;
  • a delay compensation circuit configured to delay-compensate the N-channel equalized received signal by using the estimated delay of the N-channel received signals to obtain a N-channel delayed compensated received signal
  • the combiner is configured to combine the received signals after the N-way delay compensation.
  • the controller is specifically configured to perform an omnidirectional scan by using an antenna to determine that there are X1 directions corresponding to the received signal of the same signal source; and determine N directions of the relatively large received signal power in the X1 directions as There are N directions corresponding to the received signals of the same signal source; the beam direction of the antenna is configured into the N directions, the X1 is an integer and the X1 is greater than or equal to the N.
  • the controller is specifically used,
  • the beam directions of the N single beam antennas are configured into the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the signal processing apparatus further includes An equalizer, configured to perform equalization processing on the N received signals received by the antenna to obtain an N-channel equalized received signal before estimating a delay of the N received signals received by the antenna;
  • the delay estimation circuit is specifically configured to estimate a delay of the received signal after the N equalization processing
  • the delay compensation circuit is specifically configured to perform delay compensation on the N-channel equalization received signal to obtain the N-channel delay-compensated reception by using the estimated delay of the N-channel equalization received signal. signal.
  • the combiner is specifically configured to calculate a combined signal of the received signal after the N-way delay compensation Weighting; using the calculated combined weight of the received signal of the N-way delay compensation to delay the N-way
  • the compensated received signal is weighted to obtain a received signal after the N-way delay compensation, and the received signals after the N-way delay compensation are combined.
  • the combiner in the calculating the combining weight of the received signal after the N-way delay compensation, is specifically configured to calculate a combined weight of the received signal after the N-way delay compensation based on a minimum mean square error criterion; or calculate a received signal of the N-channel delayed compensated based on a least squares criterion Combining the weights; or calculating the combined weights of the received signals after the N-way delay compensation based on the maximum signal-to-noise ratio criterion.
  • the delay estimation circuit is specifically configured to calculate a cross-correlation value between the training sequence and a signal sequence entering the sliding window in the N-channel equalization processed received signal, the length of the sliding window and the training The length of the sequence is the same; the delay time of the received signal after the N-channel equalization processing is calculated, wherein the delay time Ti of the received signal after the i-th equalization processing is the i-th equalization processing in the training sequence insertion period a receiving time of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal, wherein the received signal after the i-th equalization processing is Determining any one of the received signals after the equalization processing; calculating the delay of the received signal after the N equalization processing based on the calculated delay time of the received signal after the N equalization processing late.
  • the delay estimation circuit is specifically configured to calculate a cross-correlation value between the reference sequence and a signal sequence that enters the sliding window in the N-channel equalization processed received signal, where the reference sequence is the N a signal sequence of length L bits in the i-th received signal in the received signal of the equalization process, the width of the sliding window being the same as the width of the reference sequence; and the receiving after the N-way equalization processing is calculated a delay time of the signal, wherein the delay time Ti of the received signal after the i-th equalization processing is in each of the signal sequences entering the sliding window in the received signal after the i-th equalization processing in the training sequence insertion period
  • the received signal after the i-th equalization process is any one of the received signals after the N-channel equalization process;
  • the signal processing apparatus further includes And an equalizer configured to perform equalization processing on the N-channel delay-compensated received signal to obtain an N-channel equalized received signal before combining the N-channel delayed-compensated received signal;
  • the combiner is specifically configured to combine the received signals after the N equalization processing.
  • the combiner is specifically configured to calculate a combined signal of the received signal after the N equalization process Weighting; using the calculated combined weight of the N-channel equalized received signal to weight the received signal after the N-way equalization processing to obtain the weighted processing after the N-way equalization processing a signal; combining the received signals after the N-way equalization processing.
  • the combiner in the calculating the combining weight of the received signal after the N equalization processing, is specifically configured to calculate a combined weight of the received signal after the N equalization processing based on a minimum mean square error criterion; or calculate a received signal of the N equalized processing based on a least squares criterion Combining the weights; or calculating the combined weights of the received signals after the N equalization processing based on the maximum signal to noise ratio criterion.
  • the delay estimating circuit is specifically configured to calculate a cross-correlation value between the training sequence and a signal sequence entering the sliding window in the N received signals, the length of the sliding window and the length of the training sequence Calculating the delay time of the N-channel received signal, wherein the delay time Ti of the ith-channel received signal is in each signal sequence entering the sliding window in the ith received signal in the training sequence insertion period Receiving time of the signal sequence having the largest cross-correlation value with the training sequence, wherein The first channel received signal is any one of the N channels of received signals; and the delay of the N channels of received signals is calculated based on the calculated delay times of the N channels of received signals.
  • the delay estimation circuit is specifically configured to calculate a cross-correlation value between a reference sequence and a signal sequence entering the sliding window in the N received signals, where the reference sequence is the N received signals a signal sequence of length L bits in the received signal of the i-th channel, the width of the sliding window being the same as the width of the reference sequence; calculating a delay time of the N-channel received signal, wherein the i-th channel is received
  • the delay time Ti of the signal is the reception timing of the signal sequence having the largest cross-correlation value with the training sequence in each of the signal sequences entering the sliding window in the i-th received signal in the training sequence insertion period.
  • the first channel received signal is any one of the N channels of received signals; and the delay of the N channel received signals is calculated based on the calculated delay times of the N channels of received signals.
  • the controller is further configured to perform omnidirectional scanning by using the antenna after the N-channel delay-compensated received signal is combined to determine that there are X2 directions corresponding to the received signal of the same signal source.
  • the beam direction configuration of the antenna is modified such that the beam direction of the antenna after the configuration is modified.
  • the direction Xi is included, and the direction Xi is different from any one of the N directions, and the direction Xj is any one of the N directions.
  • a third aspect of the embodiments of the present invention provides a signal processing apparatus, including:
  • processor performs the following steps by calling code or instructions in the memory:
  • the N-channel delay-compensated received signal is combined and processed.
  • the determining that the N directions of the received signals corresponding to the same signal source include: performing omnidirectional scanning by using an antenna to determine that there is a corresponding signal source Receiving X1 directions of signals; determining N directions of relatively large received signal powers in the X1 directions as N directions of received signals corresponding to the same signal source, the X1 being an integer and the X1 Greater than or equal to the N.
  • the configuring a beam direction of the antenna into the N directions includes:
  • the beam directions of the N single beam antennas are configured into the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the estimating the antenna receiving Before the delay of the received signal of the N way the processor performs equalization processing on the N received signals received by the antenna to obtain the received signal after the N equalization process;
  • estimating a delay of the N received signals received by the antenna, and delaying compensation of the N received signals by using the estimated delay of the N received signals to obtain a received signal after N delay compensation include:
  • the processing of the N-channel delay-compensated received signal includes:
  • the calculating the combined weight of the received signal after the N-way delay compensation comprises: a square error criterion for calculating a combined weight of the received signal after the N-way delay compensation; or calculating a combined weight of the received signal after the N-way delay compensation based on a least squares criterion; or based on a maximum signal-to-noise ratio criterion Calculating a combined weight of the received signal after the N-way delay compensation.
  • estimating the delay of the received signal after the N equalization processing including:
  • estimating the delay of the received signal after the N equalization processing including:
  • the delay of the received signal after the N-channel equalization processing is calculated based on the calculated delay time of the N-channel equalization received signal.
  • the processor Before the delay-compensated received signal is combined, the processor performs equalization processing on the N-channel delayed-compensated received signal to obtain an N-channel equalized received signal;
  • the combining the processing of the N-channel delay-compensated received signal includes combining the received signals of the N-channel equalization processing.
  • the combining the received signals after the N equalization processing includes:
  • the calculating the combining weight of the received signal after the N equalization processing comprises: based on a minimum average The square error criterion calculates a combined weight of the received signal after the N equalization processing; or calculates a combined weight of the received signal after the N equalized processing based on a least squares criterion; or based on a maximum signal to noise ratio criterion Calculating a combined weight of the received signal after the N equalization process.
  • the eleventh possible implementation manner of the third aspect The estimating the delay of the N received signals includes:
  • Calculating the delay time of the N-channel received signal, and the delay time Ti of the ith-channel received signal is the sum of the signal sequences entering the sliding window in the ith channel received signal in the training sequence insertion period And a receiving moment of a signal sequence having a maximum cross-correlation value between the training sequences, wherein the i-th received signal is any one of the N received signals; and based on the calculated delay of the N received signals The delay of the N received signals is calculated at all times.
  • the twelfth possible implementation of the third aspect includes:
  • the processor also performs an omnidirectional scan using an antenna to determine that there are X2 directions corresponding to the received signal of the same signal source; the received signal power of the received signal in the direction Xi in the X2 directions is greater than the received signal of the direction Xj
  • modifying the beam direction configuration of the antenna such that the beam direction of the modified antenna after the configuration includes the direction Xi, the direction Xi being different from any one of the N directions, wherein, the direction Xj is any one of the N directions.
  • a fourth aspect of the embodiments of the present invention provides a wireless transmission device, including: an antenna and any one of the signal processing devices provided by the embodiments of the present invention.
  • the signal receiving end of the embodiment of the present invention determines that there are N directions of the received signal corresponding to the same signal source; configures the beam direction of the antenna as the N directions; and estimates the N path received by the antenna. Delay in receiving the signal, using the estimated reception after the N-way equalization processing a delay of the signal, respectively performing delay compensation on the N received signals to obtain an N-channel delayed compensated received signal, wherein the N-channel received signals are in one-to-one correspondence with the N directions; The received signal is combined and processed.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore,
  • the received signal after the equalization processing is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is combined and processed, and the above technical solution abandons the same signal source in the conventional technology.
  • Corresponding multipath signal cancellation mechanism and more fully utilize the multipath signal corresponding to the same signal source, it is found that this method is beneficial to improve the signal receiving gain in multipath scenarios.
  • FIG. 1 is a schematic flowchart of a signal processing method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart diagram of another signal processing method according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of a wireless transmission device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a multipath scenario with an obstacle according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a signal entering a sliding window at several adjacent moments according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another signal processing method according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram of another wireless transmission device according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a signal processing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another signal processing apparatus according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of another signal processing apparatus according to an embodiment of the present disclosure.
  • FIG. 5-a is a schematic diagram of another signal processing apparatus according to an embodiment of the present invention.
  • FIG. 5-b is a schematic diagram of another signal processing apparatus according to an embodiment of the present invention.
  • FIG. 5-c is a schematic diagram of another signal processing apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another signal processing apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another wireless transmission device according to an embodiment of the present invention.
  • the embodiments of the present invention provide a signal processing method and related equipment, so as to improve signal receiving gain in a multipath scenario.
  • a signal processing method may include: determining that there are N directions of received signals corresponding to the same signal source; configuring a beam direction of the antenna as the N directions; a delay of the N received signals received by the antenna, wherein the N received signals are in one-to-one correspondence with the N directions, and the N is an integer greater than 1, and the estimated delay of the N received signals is utilized. And performing delay compensation on the N received signals to obtain N-channel delayed compensated received signals; and combining the N-way delayed-compensated received signals into a combined processing.
  • FIG. 1 is a schematic flowchart diagram of a signal processing method according to an embodiment of the present invention.
  • a signal processing method provided by an embodiment of the present invention may include:
  • the received signals corresponding to the same signal source that is, the received signals are generated by the same transmission signal transmitted by the same signal source through the wireless channel.
  • the same transmitted signal transmitted by the same source may be reflected (for example, there is a barrier) or the like through a complicated wireless channel, and thus the received signal arriving at the receiving end may come from multiple directions.
  • the N directions of the received signals corresponding to the same signal source can be determined in various ways.
  • an omnidirectional scan can be performed by using an antenna to determine that there are X1 directions corresponding to the received signals of the same signal source; and N directions of relatively large received signal powers in the X1 directions are determined to exist corresponding to the same signal source.
  • the N directions of the received signal can be performed using an antenna to determine that there are X1 directions corresponding to the received signal of the same signal source; In any of the N directions, it is determined that there are N directions of the received signals corresponding to the same signal source, and the X1 is greater than or equal to the N.
  • an omnidirectional scan can be performed using an antenna to determine X1 directions of received signals corresponding to the same signal source; one direction in which the received signal power is maximized in the X1 directions and the received signal power in the X1 directions. Any of the X-1 directions other than the largest one direction is determined to have N directions of the received signals corresponding to the same signal source, and the X1 is greater than or equal to the N.
  • the configuring the beam direction of the antenna into the N directions may include: configuring a beam direction of the multi-beam antenna into the N directions; or The beam direction of the single beam antenna is configured in the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the received signal mentioned in the various embodiments of the present invention may be, for example, a microwave signal (for example, a millimeter wave signal) or a signal of other wavelengths.
  • the N received signals are in one-to-one correspondence with the N directions.
  • the N-channel received signal and the N-channel delayed compensated received signal are in one-to-one correspondence.
  • the delay of the N received signals received by the antenna is estimated, that is, the delay between the N received signals received by the antenna is estimated.
  • the combined signal obtained by combining the N-channel delay-compensated received signals may be subjected to demodulation processing.
  • the execution body of the solution in this embodiment may be a signal processing device, a wireless transmission device (for example, a relay station, a base station, or a wireless backhaul device such as a small station backhaul device) or the like.
  • a wireless transmission device for example, a relay station, a base station, or a wireless backhaul device such as a small station backhaul device
  • the signal receiving end in this embodiment determines that there are N directions of the received signal corresponding to the same signal source; configures the beam direction of the antenna as the N directions; and estimates the antenna a delay of the received N received signals, and delaying the N received signals by using the estimated delay of the received signals after the N equalization processes to obtain N received delay compensated received signals,
  • the N-channel received signals are in one-to-one correspondence with the N directions; and the received signals after the N-channel delay compensation are combined and processed.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore,
  • the received signal after the equalization processing is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is combined and processed, and the above technical solution abandons the same signal source in the conventional technology.
  • Corresponding multipath signal cancellation mechanism and more fully utilize the multipath signal corresponding to the same signal source, it is found that this method is beneficial to improve the signal receiving gain in multipath scenarios.
  • the method before the estimating the delay of the N received signals received by the antenna, the method further includes: performing equalization processing on the N received signals received by the antenna to The received signal after N equalization processing is obtained.
  • the receiving signal may include, for example, estimating a delay of the received signal after the N-channel equalization processing, and using the estimated delay of the received signal after the N-channel equalization processing, respectively, the received signal after the N-channel equalization processing Delay compensation is performed to obtain a received signal after N-way delay compensation.
  • the combining the N-channel delay-compensated received signal may include: calculating a combined right of the N-channel delayed compensated received signal And performing weighting processing on the N-channel delay-compensated received signal by using the calculated combined weight of the N-channel delay-compensated received signal to obtain a weighted-processed received signal after N-way delay compensation And merging the weighted processed received signals after the N-way delay compensation.
  • the calculating, by the N-way delay compensation, the combined weight of the received signal may include: calculating the N-way delay compensation based on a minimum mean square error criterion Calculating the combined weight of the received signal; or calculating the combined weight of the received signal after the N-way delay compensation based on the least squares criterion; or calculating the received signal after the N-way delay compensation based on the maximum signal-to-noise ratio criterion The weight of the combined road.
  • the combined weight of the received signal after the N-way delay compensation can also be calculated by other mechanisms.
  • the combined weight of the received signal after delay compensation corresponds to the received signal power, which is greater than the received signal corresponding to the received signal after the j-th delay compensation.
  • the combined weight of the received signal after the i-th delay compensation is greater than or equal to the combined weight of the received signal after the j-th delay compensation.
  • the combined weight of the received signal after the delay of the corresponding signal-to-noise ratio is larger, that is, the reception after the delay compensation of the i-th channel
  • the signal corresponds to the signal-to-noise ratio of the received signal, and is greater than the signal-to-noise ratio of the received signal after the j-th delay compensation, and the combined weight of the received signal after the i-th delay is greater than or equal to the j-th delay
  • the combined weight of the received signal after compensation is not limited to the manner of calculating the combined weight of the received signal after the N-way delay compensation.
  • the combined weight of the received signal after the N-way delay compensation is calculated based on the minimum mean square error criterion, or the combination of the received signals after the N-way delay compensation is calculated based on the least squares criterion
  • the road weight value; or calculating the combined weight of the received signal after the N-way delay compensation based on the maximum signal-to-noise ratio criterion since the importance difference of the received signal after the N-way delay compensation is considered to some extent, it is advantageous
  • the calculated combined weight of the received signal with the N-way delay compensation is more in line with the expected effect, thereby further improving the signal receiving gain in the multi-path scenario.
  • the estimating a delay of the received signal after the N-channel equalization processing may include: calculating a training sequence and entering the received signal after the N-way equalization processing a cross-correlation value between the signal sequences in the sliding window, the length of the sliding window being the same as the length of the training sequence; calculating a delay time of the received signal after the N-way equalization processing, wherein the i-th equalization processing The delay time Ti of the received signal is the cross-correlation value between the training sequence and the training sequence entering the sliding window in the received signal after the i-th equalization processing in the training sequence insertion period.
  • the delay time of the signal calculates the delay of the received signal after the N equalization process.
  • the estimating a delay of the received signal after the N equalization process includes: calculating a reference sequence and the received signal after the N equalization process Entering a cross-correlation value between signal sequences in the sliding window, wherein the reference sequence is a signal sequence of length L bits in the i-th received signal in the N-channel equalized received signal, The width of the sliding window is the same as the width of the reference sequence; calculating a delay time of the received signal after the N-channel equalization processing, wherein the delay time Ti of the received signal after the i-th equalization processing is inserted into the training sequence a receiving time of a signal sequence having the largest cross-correlation value with the training sequence in each of the signal sequences in the sliding window in the received signal after the i-th equalization processing in the period, the ith path
  • the received signal after the equalization processing is any one of the received signals after the N equalization processing; and the received after the N equalization processing is calculated based on the calculated delay time
  • the sliding window can be physically a first-in first-out buffer, and the sliding window can enter/exit one or more bits at a time.
  • the method before the combining the N-channel delay-compensated received signals, further includes: performing equalization processing on the N-channel delay-compensated received signals.
  • the combining the N-channel delay-compensated received signal may include combining the received signals after the N-channel equalization processing.
  • the combining the N-channel equalized received signals may include: calculating a combined right of the N-channel equalized received signals And performing weighting processing on the N-channel equalization processed received signal by using the calculated combined weight of the N-channel equalized received signal to obtain a weighted processed received signal after N equalization processing; And combining the received signals after the N-channel equalization processing.
  • the calculating, by the N-way equalization processing, the combined weight of the received signal comprises: calculating, after the N-way equalization processing, the receiving based on the minimum mean square error criterion Combining the weight of the signal; or calculating the combined weight of the received signal after the N equalization processing based on the least squares criterion; or calculating the combined signal of the N equalized processing based on the maximum SNR criterion Road weight.
  • the estimating the delay of the N received signals may include: calculating a training sequence and a signal sequence entering the sliding window in the N received signals a cross-correlation value, the length of the sliding window is the same as the length of the training sequence; calculating a delay time of the N-channel received signal, and a delay time Ti of the i-th received signal is within a training sequence insertion period a receiving moment of a signal sequence having a maximum cross-correlation value between the training sequence and the training sequence in the i-channel received signal, wherein the i-th receiving signal is the Any one of the N channels of received signals; calculating a delay of the N channels of received signals based on the calculated delay times of the N channels of received signals.
  • the estimating the delay of the N received signals may include: calculating a reference sequence and a signal sequence of the N received signals into the sliding window. a cross-correlation value, wherein the reference sequence is a signal sequence of length L bits in an i-th received signal of the N-channel received signals, a width of the sliding window and a width of the reference sequence
  • the delay time Ti of the received signal is calculated, and the delay time Ti of the received signal of the i-th channel is entered in each signal sequence in the sliding window in the received signal of the i-th channel during the training sequence insertion period.
  • the ith channel received signal is any one of the N channels of received signals; based on the calculated N-channel received signals The delay of the N received signals is calculated at the delay time.
  • the method may further include: performing an omnidirectional scan using the antenna to determine that there are X2 directions of the received signal corresponding to the same signal source; receiving signal power of the received signal in the direction Xi in the X2 directions is greater than receiving in the direction Xj
  • the beam direction configuration of the antenna is modified such that the beam direction of the antenna after the configuration is modified includes the direction Xi, the direction Xi being different from any of the N directions
  • the direction, the direction Xj is different from any one of the N directions.
  • intersection between the set of the X2 directions and the set of the X1 directions may be an empty set or a non-empty set.
  • the beam direction configuration of the antenna can be adaptively adjusted according to the result of the omni-directional scanning, thereby facilitating the beam direction configuration effect of the optimal or optimal antenna, thereby further improving the signal in the multipath scenario. Receive gain.
  • FIG. 2 is a schematic diagram of a signal processing method according to another embodiment of the present invention.
  • the signal processing method shown in FIG. 2-a can be embodied, for example, on the wireless transmission device of the architecture shown in FIG. 2-b.
  • the wireless transmission device of the architecture shown in FIG. 2-b includes a scanning antenna and a multi-beam antenna.
  • a signal processing method provided by another embodiment of the present invention may include:
  • the wireless transmission device performs an omnidirectional scan using the scan antenna to determine that there are X1 directions of the received signals corresponding to the same signal source.
  • X1 is an integer greater than 1, for example, said X1 is equal to 2, 3, 4, 5, 10, 15, or other values.
  • the wireless transmission device in this embodiment may be, for example, a wireless backhaul device such as a relay station, a base station, or a small station backhaul device.
  • a wireless backhaul device such as a relay station, a base station, or a small station backhaul device.
  • the wireless transmission device determines N directions in which the received signal power in the X1 directions are relatively large as N directions in which the received signals corresponding to the same signal source exist.
  • N is an integer greater than 1, for example, the N is equal to 2, 3, 4, 5, 9, 13, 14, or other values.
  • the wireless transmission device may also determine any N directions of the X1 directions as having N directions corresponding to the received signals of the same signal source, where the X1 Greater than or equal to the N.
  • the wireless transmission device may perform an omnidirectional scan using an antenna to determine that there are X1 directions corresponding to the received signal of the same signal source; divide one direction and the X1 direction in which the received signal power is the largest in the X1 directions. Any of the X-1 directions other than the one direction in which the received signal power is the largest is determined to have N directions of the received signals corresponding to the same signal source, and the X1 is greater than or equal to the N.
  • the wireless transmission device configures a beam direction of the multi-beam antenna of the wireless transmission device into the N directions.
  • the wireless transmission device may configure the multi-beam antenna of the wireless transmission device by configuring a phase shifter circuit or a multiplier circuit connected to the multi-beam antenna.
  • the beam direction is configured in the N directions.
  • the wireless transmission device performs equalization processing on the N received signals received by the multi-beam antenna to obtain an N-channel equalized received signal.
  • the N received signals are in one-to-one correspondence with the N directions.
  • the N-channel received signal and the N-channel equalized received signal are in one-to-one correspondence.
  • the wireless transmission device estimates a delay of the received signal after the N equalization processing.
  • the estimating the delay of the received signal after the N equalization processing may include: calculating a training sequence and the received signal after the N equalization processing. Entering a cross-correlation value between signal sequences in the sliding window, the length of the sliding window being the same as the length of the training sequence; calculating a delay time of the received signal after the N-way equalization processing, the i-th equalization processing
  • the delay time Ti of the received signal is the cross-correlation value between the training sequence and the training sequence entering the sliding window in the received signal after the i-th equalization processing in the training sequence insertion period.
  • the received signal after the i-th equalization processing may be any one of the N-channel equalized received signals; based on the calculated N-way equalization processing
  • the delay of the received signal after the N-channel equalization process is calculated at the delay time of the received signal.
  • the training sequence is known to both the signal transmitting end and the signal receiving end.
  • the length of the training sequence can be configured according to actual needs.
  • the estimating the delay of the received signal after the N-channel equalization processing comprises: calculating a reference sequence and entering the slipped signal after the N-channel equalization processing a cross-correlation value between the signal sequences in the window, wherein the reference sequence is a signal sequence of length L bits in the i-th received signal in the N-channel equalized received signal, the sliding The width of the window is the same as the width of the reference sequence; the delay time of the received signal after the N-channel equalization processing is calculated, wherein the delay time Ti of the received signal after the i-th equalization processing is within the training sequence insertion period a receiving time of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal after the i-th equalization processing, after the i-th equalization processing
  • the received signal is any one of the received signals after the N equalization processing; and the N equalization processing is calculated based on the calculated delay time of the received signal after the N equalization
  • L represents the length of the training sequence.
  • s(m) denotes a training sequence
  • y i (m+n) denotes a signal sequence in which the reception time in the incoming sliding window in the i-th received signal is the time n.
  • R i (n) represents a cross-correlation value between the training sequence and the signal sequence in the incoming sliding window in the i-th received signal that is the time n.
  • m 1,...,L.
  • Tj the delay time of the received signal after the j-th equalization process
  • Tj the delay time of the received signal after the j-th equalization process
  • the sliding window can be physically a first-in first-out buffer, and the sliding window can enter/exit one or more bits at a time.
  • the signal sequence of the received signal after the i-th equalization processing enters the sliding window at several adjacent moments in FIG. 2-d, and the sliding window is used in FIG. 2-d. You can enter/exit a bit as an example.
  • the wireless transmission device performs delay compensation on the N-channel equalization received signal by using the estimated delay of the N-channel equalized received signal to obtain an N-channel delayed compensated received signal.
  • the wireless transmission device may perform delay compensation on the received signal after the i-th equalization processing by using the estimated delay of the received signal after the i-th equalization processing to obtain the received signal after the i-th delay compensation.
  • the wireless transmission device delay-compensates the received signal after the j-th equalization processing by using the estimated delay of the received signal after the j-th equalization processing to obtain the received signal after the j-th delay compensation.
  • the received signal after the i-th equalization processing is any one of the received signals after the N-channel equalization processing.
  • the wireless transmission device combines the received signals after the N-channel delay compensation.
  • the wireless transmission device performs the combining processing on the N-channel delay-compensated received signal, and may include, for example, calculating the N-channel delay-compensated received signal. Combining weights; using the calculated combined weights of the N-channel delay-compensated received signals to weight the received signals after the N-way delay compensation to obtain weighting processing after N-way delay compensation Receive signal; combine the weighted processed received signals after the N-way delay compensation.
  • the received signal of the i-th delay compensation may be weighted by using the calculated combined weight of the received signal of the i-th delay compensation to obtain the weighted processing after the i-th delay compensation. signal.
  • the received signal of the j-th delay compensation may be weighted by the calculated combined weight of the received signal of the j-th delay compensation to obtain the received signal after the weighted processing of the j-th delay compensation.
  • the weighting processing method of the received signal after the other road delay compensation is deduced by analogy.
  • the received signal after the i-th delay compensation is any one of the received signals after the N-way delay compensation.
  • the calculating, by the N-way delay compensation, the combined weight of the received signal may include: calculating the N-way delay compensation based on a minimum mean square error criterion Calculating the combined weight of the received signal; or calculating the combined weight of the received signal after the N-way delay compensation based on the least squares criterion; or calculating the received signal after the N-way delay compensation based on the maximum signal-to-noise ratio criterion The weight of the combined road.
  • the combined weight of the received signal after the N-way delay compensation can also be calculated by other mechanisms.
  • the combined weight of the received signal after the delay compensation corresponding to the received signal power is larger, that is, the received signal corresponding to the i-th delay compensation corresponds to
  • the combined weight of the received signal after the i-th delay compensation is greater than or equal to the received signal after the j-th delay compensation The weight of the road.
  • the combined weight of the received signal after the delay of the corresponding signal-to-noise ratio is larger, that is, the reception after the delay compensation of the i-th channel
  • the signal corresponds to the received signal SNR, which is greater than the jth delay
  • the combined weight of the received signal after the i-th delay compensation is greater than or equal to the combined weight of the received signal after the j-th delay compensation.
  • the embodiment of the present invention is not limited to the manner of calculating the combined weight of the received signal after the N-way delay compensation.
  • the combined weight of the received signal after the N-way delay compensation is calculated based on the minimum mean square error criterion, or the combination of the received signals after the N-way delay compensation is calculated based on the least squares criterion
  • the road weight value; or calculating the combined weight of the received signal after the N-way delay compensation based on the maximum signal-to-noise ratio criterion since the importance difference of the received signal after the N-way delay compensation is considered to some extent, it is advantageous
  • the calculated combined weight of the received signal with the N-way delay compensation is more in line with the expected effect, thereby further improving the signal receiving gain in the multi-path scenario.
  • the wireless transmission device may perform demodulation processing on the combined signal obtained by combining the N-channel delay-compensated received signals.
  • the wireless transmission device may further perform an omnidirectional scan using the antenna to determine that the presence corresponds to the same X2 directions of the received signal of the signal source; in the case where the received signal power of the received signal of the direction Xi in the X2 directions is greater than the received signal power of the received signal of the direction Xj, the beam direction configuration of the antenna is modified to cause modification
  • the configured beam direction of the antenna includes the direction Xi, the direction Xi is different from any one of the N directions, and the direction Xj is any one of the N directions.
  • intersection between the set of the X2 directions and the set of the X1 directions may be an empty set or a non-empty set.
  • a wireless transmission device can periodically perform an omnidirectional scan using an antenna to determine that one or more directions of received signals corresponding to the same source are present.
  • the beam direction configuration of the antenna can be adaptively adjusted according to the result of the omni-directional scanning, thereby facilitating the beam direction configuration effect of the optimal or optimal antenna, thereby further improving the signal in the multipath scenario. Receive gain.
  • the received N signals are equalized to obtain N received signals, and the N received signals are in one-to-one correspondence with the N directions; and the delay of the received signals after the N equalization processing is estimated.
  • delaying compensation of the N-channel equalized received signal to obtain a N-channel delayed compensated received signal; and delaying the N-way delay compensation
  • the subsequent received signals are combined and processed.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore,
  • the received signal after the equalization processing is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is combined and processed, and the above technical solution abandons the same signal source in the conventional technology.
  • Corresponding multipath signal elimination mechanism but more fully utilizes multipath signals corresponding to the same signal source, and it is found that this method is beneficial to improve signal receiving gain in multipath scenarios.
  • FIG. 3-a is a schematic flowchart diagram of a signal processing method according to another embodiment of the present invention.
  • the signal processing method shown in FIG. 3-a can be embodied, for example, on the wireless transmission device of the architecture shown in FIG. 3-b.
  • the wireless transmission device of the architecture shown in FIG. 3-b includes a scanning antenna and N single beam antennas.
  • a signal processing method provided by another embodiment of the present invention may include:
  • the wireless transmission device performs an omnidirectional scan using the scan antenna to determine that there are X1 directions corresponding to the received signals of the same signal source.
  • X1 is an integer greater than 1, for example, said X1 is equal to 2, 3, 4, 5, 10, 15, or other values.
  • the wireless transmission device in this embodiment may be, for example, a wireless backhaul device such as a relay station, a base station, or a small station backhaul device.
  • a wireless backhaul device such as a relay station, a base station, or a small station backhaul device.
  • the wireless transmission device determines, in the N directions, that the received signal power in the X1 direction is relatively large, as the N directions of the received signals corresponding to the same signal source.
  • N is an integer greater than 1, for example, the N is equal to 2, 3, 4, 5, 9, 13, 14, or other values.
  • the wireless transmission device may also determine any N directions of the X1 directions as having N directions corresponding to the received signals of the same signal source, where the X1 Greater than or equal to the N.
  • the wireless transmission device may perform an omnidirectional scan using an antenna to determine that there are X1 directions corresponding to the received signal of the same signal source; divide one direction and the X1 direction in which the received signal power is the largest in the X1 directions. Any of the X-1 directions other than the one direction in which the received signal power is the largest is determined to have N directions of the received signals corresponding to the same signal source, and the X1 is greater than or equal to the N.
  • the wireless transmission device configures a beam direction of the N single beam antennas of the wireless transmission device into the N directions.
  • the N single-beam antennas are in one-to-one correspondence with the N directions. That is, the beam directions of different ones of the N single beam antennas are arranged in different directions among the N directions.
  • the wireless transmission device may configure a beam of N single beam antennas of the wireless transmission device by configuring a phase shifter circuit or a multiplier circuit connected to the N single beam antennas.
  • the direction is configured in the N directions.
  • the wireless transmission device performs equalization processing on the N received signals received by the N single beam antennas to obtain an N-channel equalized received signal.
  • the N received signals are in one-to-one correspondence with the N directions.
  • the N-channel received signal and the N-channel equalized received signal are in one-to-one correspondence.
  • the wireless transmission device estimates a delay of the received signal after the N equalization processing.
  • the estimating the delay of the received signal after the N equalization processing may include: calculating a training sequence and the received signal after the N equalization processing. Entering a cross-correlation value between signal sequences in the sliding window, the length of the sliding window being the same as the length of the training sequence; calculating a delay time of the received signal after the N-way equalization processing, the i-th equalization processing
  • the delay time Ti of the received signal is the cross-correlation value between the training sequence and the training sequence entering the sliding window in the received signal after the i-th equalization processing in the training sequence insertion period.
  • the received signal after the i-th equalization processing may be any one of the N-channel equalized received signals; based on the calculated N-way equalization processing Calculating the received signal of the N-channel equalization processing by the delay time of the received signal delay.
  • the training sequence is known to both the signal transmitting end and the signal receiving end.
  • the length of the training sequence can be configured according to actual needs.
  • the estimating the delay of the received signal after the N-channel equalization processing comprises: calculating a reference sequence and entering the slipped signal after the N-channel equalization processing a cross-correlation value between the signal sequences in the window, wherein the reference sequence is a signal sequence of length L bits in the i-th received signal in the N-channel equalized received signal, the sliding The width of the window is the same as the width of the reference sequence; the delay time of the received signal after the N-channel equalization processing is calculated, wherein the delay time Ti of the received signal after the i-th equalization processing is within the training sequence insertion period a receiving time of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal after the i-th equalization processing, after the i-th equalization processing
  • the received signal is any one of the received signals after the N-channel equalization processing; and the N-way equalization processing is calculated based on the calculated delay time of the received signal after
  • L represents the length of the training sequence.
  • s(m) denotes a training sequence
  • y i (m+n) denotes a signal sequence in which the reception time in the incoming sliding window in the i-th received signal is the time n.
  • R i (n) represents a cross-correlation value between the training sequence and the signal sequence in the incoming sliding window in the i-th received signal that is the time n.
  • m 1,...,L.
  • Tj the delay time of the received signal after the j-th equalization process
  • Tj the delay time of the received signal after the j-th equalization process
  • the sliding window can be physically a first-in first-out buffer, and the sliding window can enter/exit one or more bits at a time.
  • the signal sequence of the received signal after the i-th equalization processing enters the sliding window at several adjacent moments in FIG. 2-d, and the sliding window is used in FIG. 2-d. You can enter/exit a bit as an example.
  • the wireless transmission device performs delay compensation on the N-channel equalization received signal by using the estimated delay of the N-channel equalized received signal to obtain an N-channel delayed compensated received signal.
  • the wireless transmission device may perform delay compensation on the received signal after the i-th equalization processing by using the estimated delay of the received signal after the i-th equalization processing to obtain the received signal after the i-th delay compensation.
  • the wireless transmission device delay-compensates the received signal after the j-th equalization processing by using the estimated delay of the received signal after the j-th equalization processing to obtain the received signal after the j-th delay compensation.
  • the manner of delay compensation for the received signals after other equalization processes is deduced by analogy.
  • the received signal after the i-th equalization processing is any one of the received signals after the N-channel equalization processing.
  • the wireless transmission device combines the received signals after the N-channel delay compensation.
  • the wireless transmission device performs the combining processing on the N-channel delay-compensated received signal, and may include, for example, calculating the N-channel delay-compensated received signal. Combining weights; using the calculated combined weights of the N-channel delay-compensated received signals to weight the received signals after the N-way delay compensation to obtain weighting processing after N-way delay compensation Receive signal; combine the weighted processed received signals after the N-way delay compensation.
  • the received signal of the i-th delay compensation may be weighted by using the calculated combined weight of the received signal of the i-th delay compensation to obtain the weighted processing after the i-th delay compensation. signal.
  • the received signal of the j-th delay compensation may be weighted by the calculated combined weight of the received signal of the j-th delay compensation to obtain the received signal after the weighted processing of the j-th delay compensation.
  • the weighting processing method of the received signal after the other road delay compensation is deduced by analogy.
  • the received signal after the i-th delay compensation is the received signal after the N-way delay compensation Any one of the numbers.
  • the calculating, by the N-way delay compensation, the combined weight of the received signal may include: calculating the N-way delay compensation based on a minimum mean square error criterion Calculating the combined weight of the received signal; or calculating the combined weight of the received signal after the N-way delay compensation based on the least squares criterion; or calculating the received signal after the N-way delay compensation based on the maximum signal-to-noise ratio criterion The weight of the combined road.
  • the combined weight of the received signal after the N-way delay compensation can also be calculated by other mechanisms.
  • the combined weight of the received signal after the delay compensation corresponding to the received signal power is larger, that is, the received signal corresponding to the i-th delay compensation corresponds to
  • the combined weight of the received signal after the i-th delay compensation is greater than or equal to the received signal after the j-th delay compensation The weight of the road.
  • the combined weight of the received signal after the delay of the corresponding signal-to-noise ratio is larger, that is, the reception after the delay compensation of the i-th channel
  • the signal corresponds to the signal-to-noise ratio of the received signal, and is greater than the signal-to-noise ratio of the received signal after the j-th delay compensation, and the combined weight of the received signal after the i-th delay is greater than or equal to the j-th delay
  • the combined weight of the received signal after compensation is not limited to the manner of calculating the combined weight of the received signal after the N-way delay compensation.
  • the combined weight of the received signal after the N-way delay compensation is calculated based on the minimum mean square error criterion, or the combination of the received signals after the N-way delay compensation is calculated based on the least squares criterion
  • the road weight value; or calculating the combined weight of the received signal after the N-way delay compensation based on the maximum signal-to-noise ratio criterion since the importance difference of the received signal after the N-way delay compensation is considered to some extent, it is advantageous
  • the calculated combined weight of the received signal with the N-way delay compensation is more in line with the expected effect, thereby further improving the signal receiving gain in the multi-path scenario.
  • the wireless transmission device may perform demodulation processing on the combined signal obtained by combining the N-channel delay-compensated received signals.
  • the wireless transmission device may further perform an omnidirectional scan using the antenna to determine that the presence corresponds to the same X2 directions of the received signal of the signal source; connection of the direction Xi in the X2 directions
  • the beam direction configuration of the antenna is modified to include the direction Xi, the direction Xi Different from any one of the N directions, the direction Xj is any one of the N directions.
  • intersection between the set of the X2 directions and the set of the X1 directions may be an empty set or a non-empty set.
  • a wireless transmission device can periodically perform an omnidirectional scan using an antenna to determine that one or more directions of received signals corresponding to the same source are present.
  • the beam direction configuration of the antenna can be adaptively adjusted according to the result of the omni-directional scanning, thereby facilitating the beam direction configuration effect of the optimal or optimal antenna, thereby further improving the signal in the multipath scenario. Receive gain.
  • the beam directions of the N single beam antennas are configured as the N directions;
  • the N received signals received by the beam antenna are equalized to obtain an N-channel equalized received signal, and the N received signals are in one-to-one correspondence with the N directions; and the N-channel equalized received signal is estimated.
  • the received signal after the road delay compensation is combined.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore,
  • the received signal after the equalization processing is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is combined and processed, and the above technical solution abandons the same signal source in the conventional technology.
  • Corresponding multipath signal cancellation mechanism but more fully utilize the multipath signal corresponding to the same signal source. In practice, it is found that this method is beneficial to improve the signal receiving gain in multipath scenarios.
  • FIG. 2-a and FIG. 3-a mainly perform equalization processing on the received signal first, and then delay compensation, and then perform the combining processing as an example, of course, in other implementations.
  • the received signal may be delayedly compensated and then equalized, and then In the joint processing, the specific implementation process can be analogized.
  • an embodiment of the present invention further provides a signal processing apparatus 400, which may include: a main control unit 410, a delay estimating unit 430, a delay compensation unit 440, and a combining unit 450.
  • the main control unit 410 is configured to determine that there are N directions of the received signals corresponding to the same signal source; and configure a beam direction of the antenna into the N directions.
  • the delay estimating unit 430 is configured to estimate a delay of the N received signals received by the antenna.
  • the delay compensation unit 440 is configured to delay-compensate the N received signals by using the estimated delay of the received signal to obtain a received signal after N-way delay compensation;
  • the combining unit 450 is configured to combine the received signals after the N-way delay compensation.
  • the main control unit 410 is specifically configured to perform omnidirectional scanning by using an antenna to determine that there are X1 directions corresponding to the received signals of the same signal source; and to use N directions of relatively large received signals in the X1 directions, It is determined that there are N directions of the received signals corresponding to the same signal source; the beam directions of the antennas are configured as the N directions.
  • the main control unit 410 is specifically configured to:
  • the beam direction of the multibeam antenna is configured into the N directions.
  • the beam directions of the N single beam antennas are configured into the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the signal processing apparatus 400 may further include: an equalizing unit 420, configured to perform equalization processing on the N received signals received by the antenna to obtain an N-channel equalized received signal, where the N-channel received signal and the N directions correspond one by one.
  • an equalizing unit 420 configured to perform equalization processing on the N received signals received by the antenna to obtain an N-channel equalized received signal, where the N-channel received signal and the N directions correspond one by one.
  • the delay estimating unit 430 is specifically configured to estimate a delay of the received signal after the N equalization processing.
  • the delay compensation unit 440 is specifically configured to perform delay compensation on the N-channel equalization received signal to obtain an N-channel delay by using the estimated delay of the N-channel equalization received signal. Received signal after late compensation.
  • the combining unit 450 is specifically configured to calculate a combined weight of the received signal after the N-way delay compensation; and use the calculated combined weight of the received signal of the N-way delay compensation
  • the N-channel delay-compensated received signal is weighted to obtain a N-channel delay-compensated received signal, and the N-channel delayed-compensated received signal is combined.
  • the combining unit 450 is specifically configured to be based on a minimum average in calculating the combined weight of the received signal after the N-way delay compensation.
  • a square error criterion for calculating a combined weight of the received signal after the N-way delay compensation or calculating a combined weight of the received signal after the N-way delay compensation based on a least squares criterion; or based on a maximum signal-to-noise ratio criterion Calculating a combined weight of the received signal after the N-way delay compensation.
  • the delay estimating unit 430 is specifically configured to calculate a cross-correlation value between the training sequence and a signal sequence that enters the sliding window in the received signal after the N-way equalization processing, the length of the sliding window and the training The length of the sequence is the same; the delay time of the received signal after the N-channel equalization processing is calculated, wherein the delay time Ti of the received signal after the i-th equalization processing is the i-th equalization processing in the training sequence insertion period a receiving time of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal, wherein the received signal after the i-th equalization processing is And describing any one of the received signals after the N-channel equalization processing; and calculating a delay of the received signal after the N-channel equalization processing based on the calculated delay time of the received signal after the N-channel equalization processing.
  • the delay estimating unit 430 may be specifically configured to calculate a signal sequence that enters a sliding window in the reference sequence and the N-channel equalized processed received signal.
  • a cross-correlation value wherein the reference sequence is a signal sequence of length L bits in an i-th received signal in the N-channel equalized received signal, the width of the sliding window is The width of the reference sequence is the same; the delay time of the received signal after the N-channel equalization process is calculated, wherein the delay time Ti of the received signal after the i-th equalization process is the i-th equalization in the training sequence insertion period
  • the received signal in the processed signal enters the sequence of the signal in the sliding window and the training sequence a receiving moment of a signal sequence having a maximum cross-correlation value, wherein the received signal after the i-th equalization processing is any one of the N-channel equalized received signals; based on the calculated N
  • the delay of the received signal after the equalization process is calculated as the delay of
  • the signal processing apparatus 400 may further include: an equalization unit 420, configured to perform equalization processing on the N-channel delay-compensated received signal to obtain an N-way before combining the N-channel delay-compensated received signal The received signal after equalization processing.
  • an equalization unit 420 configured to perform equalization processing on the N-channel delay-compensated received signal to obtain an N-way before combining the N-channel delay-compensated received signal The received signal after equalization processing.
  • the combining unit 450 is specifically configured to perform a combining process on the received signals after the N-channel equalization processing.
  • the combining unit 450 is specifically configured to calculate a combined weight of the received signal after the N equalization processing; and use the calculated combined weight of the received signal of the N equalized processing to the N
  • the received signal after the equalization processing is weighted to obtain a received signal after the N-way equalization processing; and the received signals after the N-way equalization processing are combined.
  • the combining unit 450 is specifically configured to be based on a minimum mean square in terms of calculating a combined weight of the received signal after the N-way equalization processing.
  • the error criterion calculates a combined weight of the N-channel equalized received signal; or calculates a combined weight of the N-channel equalized received signal based on a least squares criterion; or, based on a maximum signal-to-noise ratio
  • the criterion calculates a combined weight of the received signal after the N equalization processing.
  • the delay estimating unit 430 is specifically configured to calculate a cross-correlation value between the training sequence and a signal sequence that enters the sliding window in the N received signals,
  • the length of the sliding window is the same as the length of the training sequence; calculating a delay time of the N-channel received signal, wherein the delay time Ti of the i-th received signal is the ith path in the training sequence insertion period a receiving moment of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal, wherein the ith received signal is the N received signal Any one of the paths; calculating the delay of the N received signals based on the calculated delay times of the N received signals.
  • the delay estimating unit 430 may be specifically configured to calculate a cross-correlation value between the reference sequence and a signal sequence that enters the sliding window in the N received signals.
  • the reference sequence is a signal sequence of length L bits in the i-th received signal of the N received signals, the width of the sliding window being the same as the width of the reference sequence; a delay time of the N-channel received signal, wherein the delay time Ti of the i-th received signal is in the signal sequence of the i-th received signal in the training sequence insertion period and enters into the sliding window a receiving moment of a signal sequence having a maximum cross-correlation value between sequences, wherein the i-th received signal is any one of the N received signals; and calculating based on the calculated delay time of the N received signals The delay of the N-channel received signal.
  • the main control unit 410 is further configured to perform omnidirectional scanning by using an antenna after the N-channel delay-compensated received signal is combined to determine that there is an X2 corresponding to the received signal of the same signal source.
  • the beam direction configuration of the antenna is modified such that the antenna after the configuration is modified
  • the beam direction includes the direction Xi, which is different from any one of the N directions, wherein the direction Xj is any one of the N directions.
  • the signal processing apparatus 400 may further include a demodulation unit 460 configured to perform the combining signal obtained by combining the N-channel delay-compensated received signals. Demodulation processing.
  • the signal processing device 400 is a wireless transmission device or deployed in a wireless transmission device (a wireless transmission device such as a relay station, a base station, or a wireless backhaul device such as a small station backhaul device) or the like.
  • a wireless transmission device such as a relay station, a base station, or a wireless backhaul device such as a small station backhaul device
  • the functions of the functional modules of the signal processing apparatus 400 of the present embodiment may be specifically implemented according to the method in the foregoing method embodiments, and the specific implementation process may refer to the related description of the foregoing method embodiments, and details are not described herein again.
  • Some or all of the functional modules in the signal processing device 400 may be implemented by hardware circuits, and some or all of the functional modules in the signal processing device 400 may also be implemented by a processor (such as a digital signal processor) by executing execution code or instructions.
  • the signal processing apparatus 400 of the embodiment of the present invention determines that there is a corresponding signal source. After the N directions of the received signal; configuring the beam direction of the antenna into the N directions; estimating the delay of the N received signals received by the antenna, and using the estimated received signal after the N equalization process Delaying, respectively, delaying compensation of the N received signals to obtain N-channel delayed compensated received signals, wherein the N-channel received signals are in one-to-one correspondence with the N directions; The received signal is combined and processed.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore,
  • the received signal after the equalization processing is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is combined and processed, and the above technical solution abandons the same signal source in the conventional technology.
  • Corresponding multipath signal cancellation mechanism and more fully utilize the multipath signal corresponding to the same signal source, it is found that this method is beneficial to improve the signal receiving gain in multipath scenarios.
  • an embodiment of the present invention further provides a signal processing apparatus 500, which may include: a controller 510, a delay estimation circuit 520, a delay compensation circuit 530, and a combiner 540.
  • the controller 510 is configured to determine that there are N directions of the received signals corresponding to the same signal source; and configure a beam direction of the antenna into the N directions.
  • the delay estimation circuit 520 is configured to estimate a delay of the N received signals received by the antenna, the N received signals are in one-to-one correspondence with the N directions, and the N is an integer greater than 1.
  • the delay compensation circuit 530 is configured to delay-compensate the N-channel equalized received signal by using the estimated delay of the N-channel received signals to obtain an N-channel delayed compensated received signal.
  • the combiner 540 is configured to combine the received signals after the N-way delay compensation.
  • the controller 510 is specifically configured to perform omnidirectional scanning by using an antenna to determine that there are X1 directions corresponding to received signals of the same signal source;
  • the N directions in which the received signal power is relatively large are determined to have N directions of the received signals corresponding to the same signal source;
  • the beam direction of the antenna is configured as the N directions, the X1 is an integer and the X1 is greater than Or equal to the N.
  • the controller 510 is specifically configured to:
  • the beam directions of the N single beam antennas are configured into the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the signal processing apparatus 500 further includes an equalizer 550, configured to perform equalization processing on the N received signals received by the antenna to obtain an N-way equalization before estimating a delay of the N received signals received by the antenna.
  • an equalizer 550 configured to perform equalization processing on the N received signals received by the antenna to obtain an N-way equalization before estimating a delay of the N received signals received by the antenna.
  • the delay estimation circuit 520 is specifically configured to estimate a delay of the received signal after the N equalization processing
  • the delay compensation circuit 530 is specifically configured to perform delay compensation on the N-channel equalization received signal by using the estimated delay of the N-channel equalization received signal to obtain N-way delay compensation. receive signal.
  • the combiner 540 is specifically configured to calculate a combined weight of the N-channel delay-compensated received signal; and use the calculated N-way delay compensation The combined weight of the received signal is weighted by the N-channel delayed compensated received signal to obtain a weighted processed received signal after N-way delay compensation; and the N-way delayed compensated weighted processing The received signals are combined.
  • the combiner 540 is specifically configured to be based on a minimum mean square in terms of calculating a combined weight of the received signal after the N-way delay compensation.
  • the error criterion calculates a combined weight of the received signal after the N-way delay compensation; or calculates a combined weight of the received signal after the N-way delay compensation based on a least squares criterion; or, based on a maximum signal-to-noise ratio
  • the criterion calculates the combined weight of the received signal after the N-way delay compensation.
  • the delay estimation circuit 520 is specifically configured to calculate between the training sequence and the signal sequence that enters the sliding window in the received signal after the N equalization processing. a cross-correlation value, the length of the sliding window being the same as the length of the training sequence; calculating a delay time of the received signal after the N-channel equalization processing, wherein the delay time of the received signal after the i-th equalization processing , in the received signal after the i-th equalization processing in the training sequence insertion period a receiving moment of a signal sequence having the largest cross-correlation value between the training sequences and the signal sequence in the sliding window, wherein the received signal after the i-th equalization processing is the N-way equalization processing Any one of the received signals; and calculating a delay of the received signal after the N-channel equalization processing based on the calculated delay time of the N-channel equalization received signal.
  • the delay estimation circuit 520 is specifically configured to calculate between the reference sequence and the signal sequence that enters the sliding window in the N-channel equalization processed received signal. a cross-correlation value, wherein the reference sequence is a signal sequence of length L bits in the i-th received signal in the N-channel equalized received signal, the width of the sliding window and the reference The width of the sequence is the same; the delay time of the received signal after the N-channel equalization processing is calculated, wherein the delay time Ti of the received signal after the i-th equalization processing is the i-th equalization processing in the training sequence insertion period a receiving time of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal, wherein the received signal after the i-th equalization processing is Determining any one of the received signals after the equalization processing; calculating the delay of the received signal after the N equalization processing based on the calculated delay time of the received signal after the N equalization processing
  • the signal processing apparatus 500 further includes: an equalizer 550, configured to combine the received signals after delay compensation by the N channels Before processing, the N-channel delay-compensated received signal is equalized to obtain an N-channel equalized received signal;
  • the combiner 540 is specifically configured to perform the combining process on the received signals after the N-channel equalization processing.
  • the combiner 540 is specifically configured to calculate a combined weight of the received signal after the N equalization processing; and use the calculated N equalization processing
  • the combined weight of the received signal is weighted to the received signal after the N equalization process to obtain the weighted processed received signal after the N equalization process; and the weighted processing after the N equalization process
  • the received signals are combined.
  • the combiner 540 is specifically configured to be based on a minimum mean square in terms of calculating a combined weight of the received signal after the N equalization process. Mistake Calculating, by the difference criterion, a combined weight of the received signal after the N equalization processing; or calculating a combined weight of the received signal after the N equalization based on a least squares criterion; or based on a maximum signal to noise ratio The criterion calculates a combined weight of the received signal after the N equalization processing.
  • the delay estimation circuit 520 is specifically configured to calculate a cross-correlation value between the training sequence and a signal sequence entering the sliding window in the N received signals.
  • the length of the sliding window is the same as the length of the training sequence; calculating a delay time of the N-channel received signal, wherein the delay time Ti of the i-th received signal is the ith in the training sequence insertion period a receiving moment of a signal sequence having the largest cross-correlation value between the training sequence and the training sequence in the received signal, wherein the ith received signal is the N received signal Any one of the paths; calculating a delay of the N received signals based on the calculated delay times of the N received signals.
  • the delay estimation circuit 520 is specifically configured to calculate a cross-correlation value between a reference sequence and a signal sequence entering the sliding window in the N received signals.
  • the reference sequence is a signal sequence of length L bits in the i-th received signal of the N received signals, the width of the sliding window being the same as the width of the reference sequence; a delay time of the N-channel received signal, wherein the delay time Ti of the i-th received signal is in the signal sequence of the i-th received signal in the training sequence insertion period and enters into the sliding window a receiving moment of a signal sequence having a maximum cross-correlation value between sequences, wherein the i-th received signal is any one of the N received signals; and calculating based on the calculated delay time of the N received signals The delay of the N-channel received signal.
  • the controller 510 is further configured to perform omnidirectional scanning by using an antenna after the N-channel delay-compensated received signal is combined and processed. Determining that there are X2 directions corresponding to the received signals of the same signal source; in the case where the received signal power of the received signal of the direction Xi in the X2 directions is greater than the received signal power of the received signal of the direction Xj, modifying the antenna
  • the beam direction is configured such that the beam direction of the antenna after the configuration is modified includes the direction Xi, the direction Xi is different from any one of the N directions, and the direction Xj is in the N directions Any direction.
  • the signal processing apparatus 500 may further include The demodulation processor 560 performs demodulation processing on the combined signal obtained by combining the N-channel delay-compensated received signals.
  • the signal processing device 500 is a wireless transmission device or deployed in a wireless transmission device (a wireless transmission device such as a relay station, a base station, or a wireless backhaul device such as a small station backhaul device) or the like.
  • a wireless transmission device such as a relay station, a base station, or a wireless backhaul device such as a small station backhaul device
  • the signal processing apparatus 500 of the embodiment of the present invention determines that there are N directions of the received signals corresponding to the same signal source; configures the beam direction of the antenna as the N directions; and estimates the N received by the antenna.
  • the delay of the received signal of the road is delayed by the estimated delay of the received signal after the equalization of the N channels to obtain the received signal of the N way delay compensation, the N receiving The signal is in one-to-one correspondence with the N directions; and the received signals after the N-way delay compensation are combined.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore,
  • the received signal after the equalization processing is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is combined and processed, and the above technical solution abandons the same signal source in the conventional technology.
  • Corresponding multipath signal cancellation mechanism and more fully utilize the multipath signal corresponding to the same signal source, it is found that this method is beneficial to improve the signal receiving gain in multipath scenarios.
  • an embodiment of the present invention further provides a signal processing apparatus 600, which may include:
  • the processor 610 can perform the following steps by calling code or instructions in the memory 620:
  • the N-channel delay-compensated received signal is combined and processed.
  • determining the N directions of the received signals corresponding to the same signal source includes: performing omnidirectional scanning by using an antenna to determine that there are X1 received signals corresponding to the same signal source. a direction in which N directions of relatively large received signal powers in the X1 directions are determined to be N directions of received signals corresponding to the same signal source, the X1 being an integer and the X1 being greater than or equal to N.
  • configuring the beam direction of the antenna into the N directions includes:
  • the beam directions of the N single beam antennas are configured into the N directions, and the N single beam antennas are in one-to-one correspondence with the N directions.
  • the processor before the estimating the delay of the N received signals received by the antenna, performs equalization processing on the N received signals received by the antenna to obtain N. Received signal after equalization processing;
  • estimating a delay of the N received signals received by the antenna, and delaying compensation of the N received signals by using the estimated delay of the N received signals to obtain a received signal after N delay compensation include:
  • the combining the N-channel delay-compensated received signals includes:
  • the calculating, by the N-way delay compensation, the combined weight of the received signal comprises: calculating, after the N-way delay compensation, the receiving based on the minimum mean square error criterion Combining the weight of the signal; or calculating the combined weight of the received signal after the N-way delay compensation based on the least squares criterion; or calculating the combined signal of the N-channel delayed compensation based on the maximum SNR criterion Road weight.
  • the estimating a delay of the received signal after the N equalization processing includes:
  • the estimating a delay of the received signal after the N equalization processing includes:
  • the processor equalizes the N-channel delayed compensated received signal. Processing to obtain a received signal after N equalization processing;
  • the combining the processing of the N-channel delay-compensated received signal includes combining the received signals of the N-channel equalization processing.
  • the combining and processing the N-channel equalized received signals includes:
  • the calculating, by the N-way equalization processing, the combined weight of the received signal comprises: calculating, after the N-way equalization processing, the receiving based on the minimum mean square error criterion Combining the weight of the signal; or calculating the combined weight of the received signal after the N equalization processing based on the least squares criterion; or calculating the combined signal of the N equalized processing based on the maximum SNR criterion Road weight.
  • the estimating the delay of the N received signals comprises: calculating a mutual interaction between the training sequence and the signal sequence entering the sliding window in the N received signals a correlation value, the length of the sliding window being the same as the length of the training sequence;
  • the estimating the delay of the N received signals comprises: calculating a mutual reference between the reference sequence and the signal sequence of the N received signals entering the sliding window a correlation value, wherein the reference sequence is in an i-th received signal of the N received signals a signal sequence of length L bits, the width of the sliding window being the same as the width of the reference sequence;
  • the processor also performs an omnidirectional scan using an antenna to determine that there are X2 directions corresponding to the received signal of the same signal source; the received signal power of the received signal in the direction Xi in the X2 directions is greater than the received signal of the direction Xj
  • modifying the beam direction configuration of the antenna such that the beam direction of the modified antenna after the configuration includes the direction Xi, the direction Xi being different from any one of the N directions, wherein, the direction Xj is any one of the N directions.
  • the signal processing device 600 is a wireless transmission device or deployed in a wireless transmission device (a wireless transmission device such as a relay station, a base station, or a wireless backhaul device such as a small station backhaul device) or the like.
  • a wireless transmission device such as a relay station, a base station, or a wireless backhaul device such as a small station backhaul device
  • the signal processing apparatus 600 of the embodiment of the present invention determines that there are N directions of the received signals corresponding to the same signal source; configures the beam direction of the antenna as the N directions; and estimates the N received by the antenna.
  • the delay of the received signal of the road is delayed by the estimated delay of the received signal after the equalization of the N channels to obtain the received signal of the N way delay compensation, the N receiving The signal is in one-to-one correspondence with the N directions; and the received signals after the N-way delay compensation are combined.
  • the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore, The received signal after the equalization process is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is obtained.
  • the above technical solution abandons the mechanism of eliminating the multipath signal corresponding to the same signal source in the conventional technology, and fully utilizes the multipath signal corresponding to the same signal source, and finds that this method is beneficial to improve the multipath scene.
  • the signal reception gain since N is an integer greater than 1, the N received signals corresponding to the N directions include the multipath received signals corresponding to the same signal source, and the above solution considers the delay problem of the multipath received signals, and therefore, The received signal after the equalization process is subjected to delay compensation to obtain the N-channel delayed-compensated received signal; and the N-channel delayed-compensated received signal is obtained.
  • an embodiment of the present invention further provides a wireless transmission device, which may include an antenna 710 and a signal processing device 720.
  • the signal processing device 720 can be any one of the above embodiments.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of any one of the signal processing methods described in the foregoing method embodiments.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to 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 electrical or otherwise.
  • the units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, It may be that each unit physically exists alone, or two or more units may be integrated in one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the above-described integrated unit if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, server or network device, etc., and in particular a processor in a computer device) to perform all or part of the steps of the above-described methods of various embodiments of the present invention.
  • the foregoing storage medium may include: a U disk, a mobile hard disk, a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), and the like. The medium of the code.

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Abstract

一种信号处理方法和相关设备，其中，一种信号处理方法，包括：确定存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向；估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数；将所述N路延迟补偿后的接收信号进行合路处理。本发明实施例的技术方案有利于提高多径场景下的信号接收增益。

Description

信号处理方法和相关设备 技术领域
本发明涉及通信技术领域，具体涉及信号处理方法和相关设备。
背景技术
随着业务需求的不断增长，通信网络的相关技术也在不断演进。未来长期演进(英文：Long Term Evolution，缩写：LTE)技术、4G技术和5G技术等技术逐渐会被使用。
其中，在基于LTE技术、4G技术和5G技术的通信系统中，小站将会进行密集部署。无线回传在未来将会呈加速增长态势，未来毫米波的回传方式可能将成主流。其中，小站的密集部署往往是在人口密集的区域，而人口密集的区域往往通信环境复杂，比如街区环境等等。因此小站回传通信场景与常规的毫米波通信环境不同，将会变得复杂化，会出现较多的非视距通信环境。而非视距通信环境对毫米波小站回传带来挑战，挑战主要包括：信道衰落变大和信道多径变得非常复杂。对于大衰落场景，传统方案中一般采用提高天线增益以及采用空间分集技术来解决。
本发明的发明人在研究和实践过程中发现，对于多径场景，传统方案一般是直接将所有多径信号作为干扰全部进行消除，这使得多径场景下的信号接收增益较低。
发明内容
本发明实施例提供信号处理方法和相关设备，以期提高多径场景下的信号接收增益。
本发明实施例第一方面提供一种信号处理方法，包括：
确定存在对应同一信号源的接收信号的N个方向；
将天线的波束方向配置为所述N个方向；
估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1 的整数；
将所述N路延迟补偿后的接收信号进行合路处理。
结合第一方面，在第一方面的第一种可能的实施方式中，
所述确定存在对应同一信号源的接收信号的N个方向包括：利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1为整数且所述X1大于或者等于所述N。
结合第一方面或第一方面的第一种可能的实施方式，在第一方面的第二种可能的实施方式中，所述将天线的波束方向配置为所述N个方向，包括：
将多波束天线的波束方向配置为所述N个方向；
或者，
将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式，在第一方面的第三种可能的实施方式中，所述估算所述天线接收到的N路接收信号的延迟之前，还包括：对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
所述估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号包括：
估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
结合第一方面的第三种可能的实施方式，在第一方面的第四种可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理包括：
计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补 偿后的加权处理后的接收信号进行合并。
结合第一方面的第四种可能的实施方式，在第一方面的第五种可能的实施方式中，所述计算所述N路延迟补偿后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
结合第一方面的第三种可能的实施方式或第一方面的第四种可能的实施方式或第一方面的第五种可能的实施方式，在第一方面的第六种可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：
计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
结合第一方面的第三种可能的实施方式或第一方面的第四种可能的实施方式或第一方面的第五种可能的实施方式，在第一方面的第七种可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：
计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值 最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式，在第一方面的第八种可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理之前，还包括：对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
所述将所述N路延迟补偿后的接收信号进行合路处理包括：将所述N路均衡处理后的接收信号进行合路处理。
结合第一方面的第八种可能的实施方式，在第一方面的第九种可能的实施方式中，所述将所述N路均衡处理后的接收信号进行合路处理包括：
计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
结合第一方面的第九种可能的实施方式，在第一方面的第十种可能的实施方式中，所述计算所述N路均衡处理后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
结合第一方面的第八种可能的实施方式或第一方面的第九种可能的实施方式或第一方面的第十种可能的实施方式，在第一方面的第十一种可能的实施方式中，所述估算所述N路接收信号的延迟，包括：
计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所 述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
结合第一方面的第八种可能的实施方式或第一方面的第九种可能的实施方式或第一方面的第十种可能的实施方式，在第一方面的第十二种可能的实施方式中，所述估算所述N路接收信号的延迟，包括：
计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
结合第一方面或第一方面的第一种至第十二种可能的实施方式中的任意一种可能的实施方式，在第一方面的第十三种可能的实施方式中，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，
所述方法还包括：利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
本发明实施例第二方面提供一种信号处理装置，包括：
控制器，用于确定存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向；
延迟估算电路，用于估算所述天线接收到的N路接收信号的延迟，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数；
延迟补偿电路，用于利用估算出的所述N路接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；
合路器，用于将所述N路延迟补偿后的接收信号进行合路处理。
结合第二方面，在第二方面的第一种可能的实施方式中，
所述控制器具体用于，利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向，所述X1为整数且所述X1大于或等于所述N。
结合第二方面或第二方面的第一种可能的实施方式，在第二方面的第二种可能的实施方式中，在所述将天线的波束方向配置为所述N个方向的方面，所述控制器具体用于，
将多波束天线的波束方向配置为所述N个方向；
或者，
将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式，在第二方面的第三种可能的实施方式中，所述信号处理装置还包括：均衡器，用于在估算所述天线接收到的N路接收信号的延迟之前，对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
其中，所述延迟估算电路具体用于，估算所述N路均衡处理后的接收信号的延迟；
所述延迟补偿电路具体用于，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
结合第二方面的第三种可能的实施方式，在第二方面的第四种可能的实施方式中，所述合路器具体用于，计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟 补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
结合第二方面的第四种可能的实施方式，在第二方面的第五种可能的实施方式中，在所述计算所述N路延迟补偿后的接收信号的合路权值的方面，所述合路器具体用于，基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
结合第二方面的第三种可能的实施方式或第二方面的第四种可能的实施方式或第二方面的第五种可能的实施方式，在第二方面的第六种可能的实施方式中，所述延迟估算电路具体用于，计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
结合第二方面的第三种可能的实施方式或第二方面的第四种可能的实施方式或第二方面的第五种可能的实施方式，在第二方面的第七种可能的实施方式中，所述延迟估算电路具体用于，计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其 中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式，在第二方面的第八种可能的实施方式中，所述信号处理装置还包括：均衡器，用于在将所述N路延迟补偿后的接收信号进行合路处理之前，对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
其中，所述合路器具体用于，将所述N路均衡处理后的接收信号进行合路处理。
结合第二方面的第八种可能的实施方式，在第二方面的第九种可能的实施方式中，所述合路器具体用于，计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
结合第二方面的第九种可能的实施方式，在第二方面的第十种可能的实施方式中，在所述计算所述N路均衡处理后的接收信号的合路权值的方面，所述合路器具体用于，基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
结合第二方面的第八种可能的实施方式或第二方面的第九种可能的实施方式或第二方面的第十种可能的实施方式，在第二方面的第十一种可能的实施方式中，所述延迟估算电路具体用于，计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所 述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
结合第二方面的第八种可能的实施方式或第二方面的第九种可能的实施方式或第二方面的第十种可能的实施方式，在第二方面的第十二种可能的实施方式中，所述延迟估算电路具体用于，计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
结合第二方面或第二方面的第一种至第十二种可能的实施方式中的任意一种可能的实施方式，在第二方面的第十三种可能的实施方式中，
所述控制器还用于，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
本发明实施例第三方面提供一种信号处理装置，包括：
处理器和存储器；其中，所述处理器通过调用所述存储器中的代码或指令以执行如下步骤：
确定存在对应同一信号源的接收信号的N个方向；
将天线的波束方向配置为所述N个方向；
估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1 的整数；
将所述N路延迟补偿后的接收信号进行合路处理。
结合第三方面，在第三方面的第一种可能的实施方式中，所述确定存在对应同一信号源的接收信号的N个方向包括：利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1为整数且所述X1大于或者等于所述N。
结合第三方面或第三方面的第一种可能的实施方式，在第三方面的第二种可能的实施方式中，所述将天线的波束方向配置为所述N个方向，包括：
将多波束天线的波束方向配置为所述N个方向；
或者，
将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
结合第三方面或第三方面的第一种可能的实施方式或第三方面的第二种可能的实施方式，在第三方面的第三种可能的实施方式中，所述估算所述天线接收到的N路接收信号的延迟之前，处理器对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
所述估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号包括：
估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
结合第三方面的第三种可能的实施方式，在第三方面的第四种可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理包括：
计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补 偿后的加权处理后的接收信号进行合并。
结合第三方面的第四种可能的实施方式，在第三方面的第五种可能的实施方式中，所述计算所述N路延迟补偿后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
结合第三方面的第三种可能的实施方式或第三方面的第四种可能的实施方式或第三方面的第五种可能的实施方式，在第三方面的第六种可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：
计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
结合第三方面的第三种可能的实施方式或第三方面的第四种可能的实施方式或第三方面的第五种可能的实施方式，在第三方面的第七种可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：
计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值 最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
结合第三方面或第三方面的第一种可能的实施方式或第三方面的第二种可能的实施方式，在第三方面的第八种可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理之前，所述处理器对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
所述将所述N路延迟补偿后的接收信号进行合路处理包括：将所述N路均衡处理后的接收信号进行合路处理。
结合第三方面的第八种可能的实施方式，在第三方面的第九种可能的实施方式中，所述将所述N路均衡处理后的接收信号进行合路处理包括：
计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
结合第三方面的第九种可能的实施方式，在第三方面的第十种可能的实施方式中，所述计算所述N路均衡处理后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
结合第三方面的第八种可能的实施方式或第三方面的第九种可能的实施方式或第三方面的第十种可能的实施方式，在第三方面的第十一种可能的实施方式中，所述估算所述N路接收信号的延迟，包括：
计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所 述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
结合第三方面的第八种可能的实施方式或第三方面的第九种可能的实施方式或第三方面的第十种可能的实施方式，在第三方面的第十二种可能的实施方式中，所述估算所述N路接收信号的延迟，包括：
计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
结合第三方面或第三方面的第一种至第十二种可能的实施方式中的任意一种可能的实施方式，在第三方面的第十三种可能的实施方式中，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，
所述处理器还利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，其中，所述方向Xj为所述N个方向中的任意一个方向。
本发明实施例第四方面提供一种无线传输设备，包括：天线和本发明实施例提供的任意一种信号处理装置。
由上可见，本发明实施例的信号接收端在确定存在对应同一信号源的接收信号的N个方向之后；将天线的波束方向配置为所述N个方向；估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路均衡处理后的接收 信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，所述N路接收信号和所述N个方向一一对应；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而较充分利用同一信号源对应的多径信号，实践发现这种方式有利于提高多径场景下的信号接收增益。
附图说明
为了更清楚地说明本发明实施例技术方案，下面将对实施例和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性的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例提供的一种信号处理方法的流程示意图；
图2-a为本发明实施例提供的另一种信号处理方法的流程示意图；
图2-b为本发明实施例提供的一种无线传输设备的示意图；
图2-c为本发明实施例提供的一种存在障碍物的多径场景的示意图；
图2-d为本发明实施例提供的信号在相邻几个时刻进入滑窗的示意图；
图3-a为本发明实施例提供的另一种信号处理方法的流程示意图；
图3-b为本发明实施例提供的另一种无线传输设备的示意图
图4-a为本发明实施例提供的一种信号处理装置的示意图；
图4-b为本发明实施例提供的另一种信号处理装置的示意图；
图4-c为本发明实施例提供的另一种信号处理装置的示意图；
图5-a为本发明实施例提供的另一种信号处理装置的示意图；
图5-b为本发明实施例提供的另一种信号处理装置的示意图；
图5-c为本发明实施例提供的另一种信号处理装置的示意图；
图6为本发明实施例提供的另一种信号处理装置的示意图；
图7为本发明实施例提供的另一种无线传输设备的示意图。
具体实施方式
本发明实施例提供信号处理方法和相关设备，以期提高多径场景下的信号接收增益。
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，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，下面所描述的实施例仅仅是本发明的一部分实施例，而非全部的实施例。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它实施例，都属于本发明保护的范围。
本发明一种信号处理方法的一个实施例，一种信号处理方法可包括：确定存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向；估算所述天线接收到的N路接收信号的延迟，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；将所述N路延迟补偿后的接收信号进行合路处理。
首先请参见图1，图1为本发明的一个实施例提供的一种信号处理方法的流程示意图。其中，图1所示，本发明的一个实施例提供的一种信号处理方法可包括：
101、确定存在对应同一信号源的接收信号的N个方向。
其中，对应同一信号源的接收信号，即这些接收信号是由同一信号源发送的同一发送信号经过无线信道传输而产生的。同一信号源发送的同一发送信号经过复杂的无线信道可能被反射(例如存在阻挡物)等，因此到达接收端的接收信号可能来自多个方向。
在实际应用中，可通过多种方式确定存在对应同一信号源的接收信号的N个方向。例如可利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向。又例如可利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的 任意N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1大于或等于所述N。又例如可利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中接收信号功率最大的1个方向和所述X1个方向中除接收信号功率最大的1个方向之外的X1-1个方向中的任意N-1个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1大于或等于所述N。
102、将天线的波束方向配置为所述N个方向。
可选的，在本发明一些可能的实施方式中，所述将天线的波束方向配置为所述N个方向可包括：将多波束天线的波束方向配置为所述N个方向；或者将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。当然，也可能通过其它的方式将天线的波束方向配置为所述N个方向。
103、估算所述所述天线接收到的N路接收信号的延迟；利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
其中，本发明的各实施例中提及的接收信号例如可以为微波信号(例如毫米波信号)或者其他波长的信号。
其中，所述N路接收信号和所述N个方向一一对应。
其中，所述N路接收信号和所述N路延迟补偿后的接收信号一一对应。
其中，估算所述所述天线接收到的N路接收信号的延迟，即估算所述所述天线接收到的N路接收信号之间的延迟。
104、将所述N路延迟补偿后的接收信号进行合路处理。
进一步的，还可将所述N路延迟补偿后的接收信号进行合路处理而得到的合路信号进行解调处理。
其中，本实施例方案的执行主体可为信号处理装置、无线传输设备(例如中继站、基站、或小站回传设备等无线回传设备)等等。
可以看出，本实施例中的信号接收端在确定存在对应同一信号源的接收信号的N个方向之后；将天线的波束方向配置为所述N个方向；估算所述天线 接收到的N路接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，所述N路接收信号和所述N个方向一一对应；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而较充分利用同一信号源对应的多径信号，实践发现这种方式有利于提高多径场景下的信号接收增益。
可选的，在本发明一些可能的实施方式中，所述估算所述天线接收到的N路接收信号的延迟之前，还可包括：对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号。其中，所述估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，例如可包括：估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
可选的，在本发明一些可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理，可以包括：计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，所述计算所述N路延迟补偿后的接收信号的合路权值，可包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。当然亦可通过其它机制计算所述N路延迟补偿后的接收信号的合路权值。例如，所述N路延迟补偿后的接收信号中，对应接收信号功 率越大的那一路延迟补偿后的接收信号的合路权值越大，即，在第i路延迟补偿后的接收信号对应接收信号功率，大于在第j路延迟补偿后的接收信号对应接收信号功率的情况下，第i路延迟补偿后的接收信号的合路权值大于或等于第j路延迟补偿后的接收信号的合路权值。又例如，所述N路延迟补偿后的接收信号中，对应接收信号信噪比越大的那一路延迟补偿后的接收信号的合路权值越大，即在第i路延迟补偿后的接收信号对应接收信号信噪比，大于在第j路延迟补偿后的接收信号对应接收信号信噪比的情况下，第i路延迟补偿后的接收信号的合路权值大于或等于第j路延迟补偿后的接收信号的合路权值。当然本发明实施例也不限于上述举例的计算所述N路延迟补偿后的接收信号的合路权值的方式。
可以理解的是，例如若基于基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值，由于在一定程度上考虑N路延迟补偿后的接收信号的重要性差异，因此有利于使得计算出的所述N路延迟补偿后的接收信号的合路权值更符合预期效果，进而有利于进一步提高多径场景下的信号接收增益。
可选的，在本发明一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，可以包括：计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
可选的，在本发明一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：计算参考序列与所述N路均衡处理后的接收信号中 进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
其中，上述滑窗在物理上可为一个先进先出的缓存器，滑窗每次可进/出一个或多个比特。
可选的，在本发明一些可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理之前，还包括：对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号。其中，所述将所述N路延迟补偿后的接收信号进行合路处理，可包括：将所述N路均衡处理后的接收信号进行合路处理。
可选的，在本发明一些可能的实施方式中，所述将所述N路均衡处理后的接收信号进行合路处理，可包括：计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，所述计算所述N路均衡处理后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
可选的，在本发明一些可能的实施方式中，所述估算所述N路接收信号的延迟，可包括：计算训练序列与所述N路接收信号中进入到滑窗中的信号序列 之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明的一些可能的实施方式中，所述估算所述N路接收信号的延迟，可以包括：计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明一些可能的实施方式中，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，
所述方法还可包括：利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj不同于所述N个方向中的任意一个方向。
其中，所述X2个方向的集合和所述X1个方向的集合之间的交集可为空集或非空集。
可以理解，由于还可以根据全向扫描的结果来自适应的调整天线的波束方向配置，因此有利于实现较优或最优的天线的波束方向配置效果，进而有利于进一步提高多径场景下的信号接收增益。
为便于更好的理解和实施本发明实施例的上述方案，下面通过一些具体的应用场景进行举例说明。
请参见图2-a和图2-b，其中，图2-a为本发明的另一个实施例提供的一种信号处理方法的流程示意图。图2-a所示的信号处理方法例如可在图2-b所示架构的无线传输设备上具体实施。其中，图2-b所示架构的无线传输设备包括扫描天线和多波束天线。其中，图2-a所示，本发明的另一个实施例提供的一种信号处理方法可包括：
201、无线传输设备利用扫描天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向。
其中，所述X1为大于1的整数，例如所述X1等于2、3、4、5、10、15或其它值。
其中，本实施例中的无线传输设备例如可为中继站、基站、或小站回传设备等无线回传设备等。
202、无线传输设备将所述X1个方向中的接收信号功率相对较大的N个方向确定为存在对应同一信号源的接收信号的N个方向。
其中，所述N为大于1的整数，例如所述N等于2、3、4、5、9、13、14或其它值。
可替换的，在其它的一些可能的实施方式中，无线传输设备也可将所述X1个方向中的任意N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1大于或等于所述N。又例如无线传输设备可利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中接收信号功率最大的1个方向和所述X1个方向中除接收信号功率最大的1个方向之外的X1-1个方向中的任意N-1个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1大于或等于所述N。
203、无线传输设备将无线传输设备的多波束天线的波束方向配置为所述N个方向。
可选的，在本发明一些可能的实施方式中，无线传输设备可通过配置与多波束天线连接的移相器电路或乘法器电路，来将无线传输设备的多波束天线的 波束方向配置为所述N个方向。
204、无线传输设备将所述多波束天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号。
其中，所述N路接收信号和所述N个方向一一对应。
其中，所述N路接收信号和所述N路均衡处理后的接收信号一一对应。
205、无线传输设备估算所述N路均衡处理后的接收信号的延迟。
可选的，在本发明的一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，例如可包括：计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号可为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
其中，训练序列对信号发送端和信号接收端都是已知的。训练序列的长度可根据实际需要来配置。
可选的，在本发明一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理 后的接收信号的延迟。
举例来说，计算两个信号序列的互相关值的公式可如下：
Figure PCTCN2015072252-appb-000001
其中，L表示训练序列的长度。s(m)表示训练序列，yi(m+n)表示第i路接收信号中的进入滑窗中的接收时刻为时刻n的信号序列。其中，Ri(n)表示训练序列与第i路接收信号中的进入滑窗中的接收时刻为时刻n的信号序列之间的互相关值。其中，m＝1,…,L。
例如，假设Ti表示第i路均衡处理后的接收信号的延迟时刻，Tj表示第j路均衡处理后的接收信号的延迟时刻，若以Tj为参考，计算出的第i路均衡处理后的接收信号的延迟△Ti，其中，△Ti＝Tj-Ti，其它路均衡处理后的接收信号的延迟计算方式以此类推，可以理解，由于是以Tj为参考，因此第j路均衡处理后的接收信号的延迟△Tj等于0。
当然，亦可用其他时刻(如所述N路均衡处理后的接收信号的延迟时刻的平均值或最大值)为参考，具体计算方式类似。
其中，上述滑窗在物理上可为一个先进先出的缓存器，滑窗每次可进/出一个或多个比特。例如图2-d所示，图2-d示出的第i路均衡处理后的接收信号中在相邻几个时刻进入到滑窗中的信号序列，图2-d中以滑窗每次可进/出一个比特为例。
206、无线传输设备利用所述估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
具体的，无线传输设备可以利用估算出的第i路均衡处理后的接收信号的延迟，对所述第i路均衡处理后的接收信号进行延迟补偿以得到第i路延迟补偿后的接收信号。无线传输设备利用估算出的第j路均衡处理后的接收信号的延迟，对所述第j路均衡处理后的接收信号进行延迟补偿以得到第j路延迟补偿后的接收信号。对其他路均衡处理后的接收信号的进行延迟补偿的方式以此类 推。其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路。
207、无线传输设备将所述N路延迟补偿后的接收信号进行合路处理。
可选的，在本发明的一些可能的实施方式中，无线传输设备将所述N路延迟补偿后的接收信号进行合路处理，例如可以包括：计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
具体的，可利用计算出的第i路延迟补偿后的接收信号的合路权值对第i路延迟补偿后的接收信号进行加权处理，以得到第i路延迟补偿后的加权处理后的接收信号。可以利用计算出的第j路延迟补偿后的接收信号的合路权值对第j路延迟补偿后的接收信号进行加权处理，以得到第j路延迟补偿后的加权处理后的接收信号。其中，对其他路延迟补偿后的接收信号进行加权处理方式以此类推。其中，所述第i路延迟补偿后的接收信号为所述N路延迟补偿后的接收信号中的任意一路。
可选的，在本发明一些可能的实施方式中，所述计算所述N路延迟补偿后的接收信号的合路权值，可包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。当然亦可通过其它机制计算所述N路延迟补偿后的接收信号的合路权值。例如，所述N路延迟补偿后的接收信号中，对应接收信号功率越大的那一路延迟补偿后的接收信号的合路权值越大，即，在第i路延迟补偿后的接收信号对应接收信号功率，大于在第j路延迟补偿后的接收信号对应接收信号功率的情况下，第i路延迟补偿后的接收信号的合路权值大于或等于第j路延迟补偿后的接收信号的合路权值。又例如，所述N路延迟补偿后的接收信号中，对应接收信号信噪比越大的那一路延迟补偿后的接收信号的合路权值越大，即在第i路延迟补偿后的接收信号对应接收信号信噪比，大于在第j路延 迟补偿后的接收信号对应接收信号信噪比的情况下，第i路延迟补偿后的接收信号的合路权值大于或等于第j路延迟补偿后的接收信号的合路权值。当然本发明实施例也不限于上述举例的计算所述N路延迟补偿后的接收信号的合路权值的方式。
可以理解的是，例如若基于基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值，由于在一定程度上考虑N路延迟补偿后的接收信号的重要性差异，因此有利于使得计算出的所述N路延迟补偿后的接收信号的合路权值更符合预期效果，进而有利于进一步提高多径场景下的信号接收增益。
进一步的，无线传输设备还可将所述N路延迟补偿后的接收信号进行合路处理而得到的合路信号进行解调处理。
可选的，在本发明一些可能的实施方式中，在将所述N路延迟补偿后的接收信号进行合路处理之后，无线传输设备还可利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
其中，所述X2个方向的集合和所述X1个方向的集合之间的交集可为空集或非空集。
例如，无线传输设备可周期性的利用天线进行全向扫描，以确定存在对应所述同一信号源的接收信号的一个或多个方向。
可以理解，由于还可以根据全向扫描的结果来自适应的调整天线的波束方向配置，因此有利于实现较优或最优的天线的波束方向配置效果，进而有利于进一步提高多径场景下的信号接收增益。
可以看出，本实施例中在确定存在对应同一信号源的接收信号的N个方向之后；将多波束天线的波束方向配置为所述N个方向；将所述多波束天线接收 到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号，所述N路接收信号和所述N个方向一一对应；估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而是较充分的利用了同一信号源对应的多径信号，实践发现这种方式有利于提高多径场景下的信号接收增益。
为便于更好的理解和实施本发明实施例的上述方案，下面通过一些具体的应用场景进行举例说明。
请参见图3-a和图3-b，其中，图3-a为本发明的另一个实施例提供的一种信号处理方法的流程示意图。图3-a所示的信号处理方法例如可在图3-b所示架构的无线传输设备上具体实施。其中，图3-b所示架构的无线传输设备包括扫描天线和N个单波束天线。其中，图3-a所示，本发明的另一个实施例提供的一种信号处理方法可包括：
301、无线传输设备利用扫描天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向。
其中，所述X1为大于1的整数，例如所述X1等于2、3、4、5、10、15或其它值。
其中，本实施例中的无线传输设备例如可为中继站、基站、或小站回传设备等无线回传设备等。
302、无线传输设备将所述X1个方向中的接收信号功率相对较大的N个方向确定为存在对应同一信号源的接收信号的N个方向。
其中，所述N为大于1的整数，例如所述N等于2、3、4、5、9、13、14或其它值。
可替换的，在其它的一些可能的实施方式中，无线传输设备也可将所述X1个方向中的任意N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1大于或等于所述N。又例如无线传输设备可利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中接收信号功率最大的1个方向和所述X1个方向中除接收信号功率最大的1个方向之外的X1-1个方向中的任意N-1个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1大于或等于所述N。
303、无线传输设备将无线传输设备的N个单波束天线的波束方向配置为所述N个方向。
其中，N个单波束天线和所述N个方向一一对应。即，N个单波束天线中的不同天线的波束方向配置为所述N个方向中的不同方向。
可选的，在本发明一些可能的实施方式中，无线传输设备可通过配置与N个单波束天线连接的移相器电路或乘法器电路，来将无线传输设备的N个单波束天线的波束方向配置为所述N个方向。
304、无线传输设备将所述N个单波束天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号。
其中，所述N路接收信号和所述N个方向一一对应。
其中，所述N路接收信号和所述N路均衡处理后的接收信号一一对应。
305、无线传输设备估算所述N路均衡处理后的接收信号的延迟。
可选的，在本发明的一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，例如可包括：计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号可为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的 延迟。
其中，训练序列对信号发送端和信号接收端都是已知的。训练序列的长度可根据实际需要来配置。
可选的，在本发明一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
举例来说，计算两个信号序列的互相关值的公式可如下：
Figure PCTCN2015072252-appb-000002
其中，L表示训练序列的长度。s(m)表示训练序列，yi(m+n)表示第i路接收信号中的进入滑窗中的接收时刻为时刻n的信号序列。其中，Ri(n)表示训练序列与第i路接收信号中的进入滑窗中的接收时刻为时刻n的信号序列之间的互相关值。其中，m＝1,…,L。
例如，假设Ti表示第i路均衡处理后的接收信号的延迟时刻，Tj表示第j路均衡处理后的接收信号的延迟时刻，若以Tj为参考，计算出的第i路均衡处理后的接收信号的延迟△Ti，其中，△Ti＝Tj-Ti，其它路均衡处理后的接收信号的延迟计算方式以此类推，可以理解，由于是以Tj为参考，因此第j路均衡处理后的接收信号的延迟△Tj等于0。
当然，亦可用其他时刻(如所述N路均衡处理后的接收信号的延迟时刻的 平均值或最大值)为参考，具体计算方式类似。
其中，上述滑窗在物理上可为一个先进先出的缓存器，滑窗每次可进/出一个或多个比特。例如图2-d所示，图2-d示出的第i路均衡处理后的接收信号中在相邻几个时刻进入到滑窗中的信号序列，图2-d中以滑窗每次可进/出一个比特为例。
306、无线传输设备利用所述估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
具体的，无线传输设备可以利用估算出的第i路均衡处理后的接收信号的延迟，对所述第i路均衡处理后的接收信号进行延迟补偿以得到第i路延迟补偿后的接收信号。无线传输设备利用估算出的第j路均衡处理后的接收信号的延迟，对所述第j路均衡处理后的接收信号进行延迟补偿以得到第j路延迟补偿后的接收信号。对其他路均衡处理后的接收信号的进行延迟补偿的方式以此类推。其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路。
307、无线传输设备将所述N路延迟补偿后的接收信号进行合路处理。
可选的，在本发明的一些可能的实施方式中，无线传输设备将所述N路延迟补偿后的接收信号进行合路处理，例如可以包括：计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
具体的，可利用计算出的第i路延迟补偿后的接收信号的合路权值对第i路延迟补偿后的接收信号进行加权处理，以得到第i路延迟补偿后的加权处理后的接收信号。可以利用计算出的第j路延迟补偿后的接收信号的合路权值对第j路延迟补偿后的接收信号进行加权处理，以得到第j路延迟补偿后的加权处理后的接收信号。其中，对其他路延迟补偿后的接收信号进行加权处理方式以此类推。其中，所述第i路延迟补偿后的接收信号为所述N路延迟补偿后的接收信 号中的任意一路。
可选的，在本发明一些可能的实施方式中，所述计算所述N路延迟补偿后的接收信号的合路权值，可包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。当然亦可通过其它机制计算所述N路延迟补偿后的接收信号的合路权值。例如，所述N路延迟补偿后的接收信号中，对应接收信号功率越大的那一路延迟补偿后的接收信号的合路权值越大，即，在第i路延迟补偿后的接收信号对应接收信号功率，大于在第j路延迟补偿后的接收信号对应接收信号功率的情况下，第i路延迟补偿后的接收信号的合路权值大于或等于第j路延迟补偿后的接收信号的合路权值。又例如，所述N路延迟补偿后的接收信号中，对应接收信号信噪比越大的那一路延迟补偿后的接收信号的合路权值越大，即在第i路延迟补偿后的接收信号对应接收信号信噪比，大于在第j路延迟补偿后的接收信号对应接收信号信噪比的情况下，第i路延迟补偿后的接收信号的合路权值大于或等于第j路延迟补偿后的接收信号的合路权值。当然本发明实施例也不限于上述举例的计算所述N路延迟补偿后的接收信号的合路权值的方式。
可以理解的是，例如若基于基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值，由于在一定程度上考虑N路延迟补偿后的接收信号的重要性差异，因此有利于使得计算出的所述N路延迟补偿后的接收信号的合路权值更符合预期效果，进而有利于进一步提高多径场景下的信号接收增益。
进一步的，无线传输设备还可将所述N路延迟补偿后的接收信号进行合路处理而得到的合路信号进行解调处理。
可选的，在本发明一些可能的实施方式中，在将所述N路延迟补偿后的接收信号进行合路处理之后，无线传输设备还可利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接 收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
其中，所述X2个方向的集合和所述X1个方向的集合之间的交集可为空集或非空集。
例如，无线传输设备可周期性的利用天线进行全向扫描，以确定存在对应所述同一信号源的接收信号的一个或多个方向。
可以理解，由于还可以根据全向扫描的结果来自适应的调整天线的波束方向配置，因此有利于实现较优或最优的天线的波束方向配置效果，进而有利于进一步提高多径场景下的信号接收增益。
可以看出，本实施例中在无线传输设备确定存在对应同一信号源的接收信号的N个方向之后；将N个单波束天线的波束方向配置为所述N个方向；将所述N个单波束天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号，所述N路接收信号和所述N个方向一一对应；估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而是较充分的利用了同一信号源对应的多径信号，实践过程中发现，这种方式有利于提高多径场景下的信号接收增益。
可以理解，图2-a和图3-a对应的实施例中主要是以先对接收信号进行均衡处理，而后再对其进行延迟补偿，之后在进行合路处理为例的，当然在其他实施方式中，也可先对接收信号进行延迟补偿，而后再对其进行均衡处理，之后 在进行合路处理，具体实现过程可类推。
参见图4-a，本发明实施例还提供一种信号处理装置400，可包括：主控单元410、延迟估算单元430、延迟补偿单元440和合路单元450。
主控单元410，用于确定存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向。
延迟估算单元430，用于估算所述天线接收到的N路接收信号的延迟。
延迟补偿单元440，用于利用估算出的所述接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；
合路单元450，用于将所述N路延迟补偿后的接收信号进行合路处理。
可选的，在本发明一些可能的实施方式中，
所述主控单元410具体用于，利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向。
可选的，在本发明一些可能的实施方式中，在所述将天线的波束方向配置为所述N个方向的方面，所述主控单元410具体用于，
将多波束天线的波束方向配置为所述N个方向.
或者，
将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
参见图4-b，可选的，在本发明一些可能的实施方式中，
信号处理装置400还可包括：均衡单元420，用于将所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号，其中，所述N路接收信号和所述N个方向一一对应。
其中，延迟估算单元430具体用于，估算所述N路均衡处理后的接收信号的延迟。
延迟补偿单元440具体用于，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延 迟补偿后的接收信号。
可选的，在本发明一些可能的实施方式中，
所述将合路单元450具体用于，计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，在所述计算所述N路延迟补偿后的接收信号的合路权值的方面，所述将合路单元450具体用于，基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
可选的，在本发明一些可能的实施方式中，
所述延迟估算单元430具体用于，计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
可选的，在本发明的一些可能的实施方式中，所述延迟估算单元430可具体用于，计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列 之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
参见图4-c，可选的，在本发明一些可能的实施方式中，
信号处理装置400还可包括：均衡单元420，用于在将所述N路延迟补偿后的接收信号进行合路处理之前，对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号。
其中，所述合路单元450具体用于，将所述N路均衡处理后的接收信号进行合路处理。
可选的，在本发明一些可能的实施方式中，
所述合路单元450具体用于，计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，在所述计算所述N路均衡处理后的接收信号的合路权值的方面，所述合路单元450具体用于，基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
可选的，在本发明一些可能的实施方式中，所述延迟估算单元430具体用于，计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明一些可能的实施方式中，所述延迟估算单元430可具体用于，计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明一些可能的实施方式中，
所述主控单元410还用于，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，其中，所述方向Xj为所述N个方向中的任意一个方向。
可选的，在本发明一些可能的实施方式中，信号处理装置400还可以包括解调单元460，用于将所述N路延迟补偿后的接收信号进行合路处理而得到的合路信号进行解调处理。
其中，信号处理装置400为无线传输设备或部署于无线传输设备中(无线传输设备例如中继站、基站、或小站回传设备等无线回传设备)等等。
可以理解的是，本实施例的信号处理装置400的各功能模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。信号处理装置400中的部分或全部功能模块可由硬件电路实现，信号处理装置400中的部分或全部功能模块也可处理器(如数字信号处理器)通过完成执行代码或指令来实现。
由上可见，本发明实施例的信号处理装置400在确定存在对应同一信号源 的接收信号的N个方向之后；将天线的波束方向配置为所述N个方向；估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，所述N路接收信号和所述N个方向一一对应；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而较充分利用同一信号源对应的多径信号，实践发现这种方式有利于提高多径场景下的信号接收增益。
参见图5-a，本发明实施例还提供一种信号处理装置500，可以包括：控制器510、延迟估算电路520、延迟补偿电路530和合路器540。
控制器510，用于确定存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向。
延迟估算电路520，用于估算所述天线接收到的N路接收信号的延迟，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数。
延迟补偿电路530，用于利用估算出的所述N路接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
合路器540，用于将所述N路延迟补偿后的接收信号进行合路处理。
可选的，在本发明一些可能实施方式中，所述控制器510具体用于，利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向，所述X1为整数且所述X1大于或等于所述N。
可选的，在本发明一些可能的实施方式中，在所述将天线的波束方向配置为所述N个方向的方面，所述控制器510具体用于，
将多波束天线的波束方向配置为所述N个方向；
或者，
将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
参见图5-b，可选的，在本发明一些可能的实施方式中，
所述信号处理装置500还包括：均衡器550，用于在估算所述天线接收到的N路接收信号的延迟之前，对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
其中，所述延迟估算电路520具体用于，估算所述N路均衡处理后的接收信号的延迟；
所述延迟补偿电路530具体用于，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
可选的，在本发明一些可能的实施方式中，所述合路器540具体用于计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，在所述计算所述N路延迟补偿后的接收信号的合路权值的方面，所述合路器540具体用于，基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
可选的，在本发明的一些可能的实施方式中，所述延迟估算电路520具体用于，计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进 入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
可选的，在本发明的一些可能的实施方式中，所述延迟估算电路520具体用于，计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
参见图5-c，可选的，在本发明一些可能的实施方式中，所述信号处理装置500还包括：均衡器550，用于在将所述N路延迟补偿后的接收信号进行合路处理之前，对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
其中，所述合路器540具体用于，将所述N路均衡处理后的接收信号进行合路处理。
可选的，在本发明一些可能的实施方式中，所述合路器540具体用于计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，在所述计算所述N路均衡处理后的接收信号的合路权值的方面，所述合路器540具体用于，基于最小均方误 差准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
可选的，在本发明的一些可能的实施方式中，所述延迟估算电路520具体用于，计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明的一些可能的实施方式中，所述延迟估算电路520具体用于，计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明一些可能的实施方式中，所述控制器510还用于，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
可选的，在本发明一些可能的实施方式中，信号处理装置500还可以包括 解调处理器560，用于将所述N路延迟补偿后的接收信号进行合路处理而得到的合路信号进行解调处理。
其中，信号处理装置500为无线传输设备或部署于无线传输设备中(无线传输设备例如中继站、基站、或小站回传设备等无线回传设备)等等。
可以理解的是，本实施例的信号处理装置500的各模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
由上可见，本发明实施例的信号处理装置500在确定存在对应同一信号源的接收信号的N个方向之后；将天线的波束方向配置为所述N个方向；估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，所述N路接收信号和所述N个方向一一对应；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而较充分利用同一信号源对应的多径信号，实践发现这种方式有利于提高多径场景下的信号接收增益。
参见图6，本发明实施例还提供一种信号处理装置600，可包括：
处理器610和存储器620；其中，处理器610和存储器620通过总线630耦合连接。其中，所述处理器610可通过调用所述存储器620中的代码或指令以执行如下步骤：
确定存在对应同一信号源的接收信号的N个方向；
将天线的波束方向配置为所述N个方向；
估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1 的整数；
将所述N路延迟补偿后的接收信号进行合路处理。
可选的，在本发明一些可能的实施方式中，所述确定存在对应同一信号源的接收信号的N个方向包括：利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1为整数且所述X1大于或者等于所述N。
可选的，在本发明一些可能的实施方式中，所述将天线的波束方向配置为所述N个方向，包括：
将多波束天线的波束方向配置为所述N个方向；
或者，
将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
可选的，在本发明一些可能的实施方式中，所述估算所述天线接收到的N路接收信号的延迟之前，处理器对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
所述估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号包括：
估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
可选的，在本发明一些可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理包括：
计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，所述计算所述N路延迟补偿后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
可选的，在本发明一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：
计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
可选的，在本发明一些可能的实施方式中，所述估算所述N路均衡处理后的接收信号的延迟，包括：
计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路 均衡处理后的接收信号的延迟。
可选的，在本发明一些可能的实施方式中，所述将所述N路延迟补偿后的接收信号进行合路处理之前，所述处理器对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
所述将所述N路延迟补偿后的接收信号进行合路处理包括：将所述N路均衡处理后的接收信号进行合路处理。
可选的，在本发明一些可能的实施方式中，所述将所述N路均衡处理后的接收信号进行合路处理包括：
计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
可选的，在本发明一些可能的实施方式中，所述计算所述N路均衡处理后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
可选的，在本发明一些可能的实施方式中，所述估算所述N路接收信号的延迟包括：计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明一些可能的实施方式中，所述估算所述N路接收信号的延迟包括：计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的 长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
可选的，在本发明一些可能的实施方式中，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，
所述处理器还利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，其中，所述方向Xj为所述N个方向中的任意一个方向。
其中，信号处理装置600为无线传输设备或部署于无线传输设备中(无线传输设备例如中继站、基站、或小站回传设备等无线回传设备)等等。
可以理解的是，本实施例的信号处理装置600的各模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
由上可见，本发明实施例的信号处理装置600在确定存在对应同一信号源的接收信号的N个方向之后；将天线的波束方向配置为所述N个方向；估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，所述N路接收信号和所述N个方向一一对应；将所述N路延迟补偿后的接收信号进行合路处理。其中，由于N为大于1的整数，因此N个方向对应的N路接收信号就包括了同一信号源对应的多径接收信号，并且上述方案考虑了多径接收信号的延迟问题，因此，对N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；并将所述N路延迟补偿后的接收信号 进行合路处理，上述技术方案摒弃了传统技术中将同一信号源对应的多径信号消除的机制，而较充分利用同一信号源对应的多径信号，实践发现这种方式有利于提高多径场景下的信号接收增益。
参见图7，本发明实施例还提供一种无线传输设备，可包括天线710和信号处理装置720。其中，信号处理装置720可为上述实施例中的任意一种信号处理装置。
本发明实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时包括上述方法实施例中记载的任意一种信号处理方法的部分或全部步骤。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可能可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可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，例如上述单元的划分，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，可以是电性或其它的形式。
上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存在，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，也可以采用软件功能单元的形式实现。
上述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以为个人计算机、服务器或者网络设备等，具体可以是计算机设备中的处理器)执行本发明各个实施例上述方法的全部或部分步骤。其中，而前述的存储介质可包括：U盘、移动硬盘、磁碟、光盘、只读存储器(ROM，Read-Only Memory)或者随机存取存储器(RAM，Random Access Memory)等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (43)

  1. 一种信号处理方法，其特征在于，包括：
    确定存在对应同一信号源的接收信号的N个方向；
    将天线的波束方向配置为所述N个方向；
    估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数；
    将所述N路延迟补偿后的接收信号进行合路处理。
  2. 根据权利要求1所述的方法，其特征在于，
    所述确定存在对应同一信号源的接收信号的N个方向包括：利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1为整数且所述X1大于或者等于所述N。
  3. 根据权利要求1至2任一项所述的方法，其特征在于，所述将天线的波束方向配置为所述N个方向，包括：
    将多波束天线的波束方向配置为所述N个方向；
    或者，
    将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述估算所述天线接收到的N路接收信号的延迟之前，还包括：对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
    所述估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号包括：
    估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补 偿以得到N路延迟补偿后的接收信号。
  5. 根据权利要求4所述的方法，其特征在于，所述将所述N路延迟补偿后的接收信号进行合路处理包括：
    计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
  6. 根据权利要求5所述的方法，其特征在于，所述计算所述N路延迟补偿后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
  7. 根据权利要求4至6任一项所述的方法，其特征在于，所述估算所述N路均衡处理后的接收信号的延迟，包括：
    计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
    计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
    基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
  8. 根据权利要求4至6任一项所述的方法，其特征在于，所述估算所述N路均衡处理后的接收信号的延迟，包括：
    计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参 考序列的宽度相同；
    计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
    基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
  9. 根据权利要求1至3任一项所述的方法，其特征在于，所述将所述N路延迟补偿后的接收信号进行合路处理之前，还包括：对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
    所述将所述N路延迟补偿后的接收信号进行合路处理包括：将所述N路均衡处理后的接收信号进行合路处理。
  10. 根据权利要求9所述的方法，其特征在于，所述将所述N路均衡处理后的接收信号进行合路处理包括：
    计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
  11. 根据权利要求10所述的方法，其特征在于，所述计算所述N路均衡处理后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
  12. 根据权利要求9至11任一项所述的方法，其特征在于，所述估算所述N路接收信号的延迟，包括：
    计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
    计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
  13. 根据权利要求9至11任一项所述的方法，其特征在于，所述估算所述N路接收信号的延迟，包括：
    计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
    计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
  14. 根据权利要求1至13任一项所述的方法，其特征在于，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，
    所述方法还包括：利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
  15. 一种信号处理装置，其特征在于，包括：
    控制器，用于确定存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向；
    延迟估算电路，用于估算所述天线接收到的N路接收信号的延迟，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数；
    延迟补偿电路，用于利用估算出的所述N路接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号；
    合路器，用于将所述N路延迟补偿后的接收信号进行合路处理。
  16. 根据权利要求15所述的信号处理装置，其特征在于，
    所述控制器具体用于，利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向；将天线的波束方向配置为所述N个方向，所述X1为整数且所述X1大于或等于所述N。
  17. 根据权利要求15或16所述的信号处理装置，其特征在于，在所述将天线的波束方向配置为所述N个方向的方面，所述控制器具体用于，
    将多波束天线的波束方向配置为所述N个方向；
    或者，
    将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
  18. 根据权利要求15至17任一项所述的信号处理装置，其特征在于，所述信号处理装置还包括：均衡器，用于在估算所述天线接收到的N路接收信号的延迟之前，对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
    其中，所述延迟估算电路具体用于，估算所述N路均衡处理后的接收信号的延迟；
    所述延迟补偿电路具体用于，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
  19. 根据权利要求18所述的信号处理装置，其特征在于，所述合路器具体用于，计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
  20. 根据权利要求19所述的信号处理装置，其特征在于，
    在所述计算所述N路延迟补偿后的接收信号的合路权值的方面，所述合路器具体用于，基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
  21. 根据权利要求18至20任一项所述的信号处理装置，其特征在于，
    所述延迟估算电路具体用于，计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
  22. 根据权利要求18至20任一项所述的信号处理装置，其特征在于，
    所述延迟估算电路具体用于，计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
  23. 根据权利要求15至17任一项所述的信号处理装置，其特征在于，所述 信号处理装置还包括：均衡器，用于在将所述N路延迟补偿后的接收信号进行合路处理之前，对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
    其中，所述合路器具体用于，将所述N路均衡处理后的接收信号进行合路处理。
  24. 根据权利要求23所述的信号处理装置，其特征在于，所述合路器具体用于，计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
  25. 根据权利要求24所述的信号处理装置，其特征在于，
    在所述计算所述N路均衡处理后的接收信号的合路权值的方面，所述合路器具体用于，基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者，基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
  26. 根据权利要求23至25任一项所述的信号处理装置，其特征在于，所述延迟估算电路具体用于，计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
  27. 根据权利要求23至25任一项所述的信号处理装置，其特征在于，所述延迟估算电路具体用于，计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列 的宽度相同；计算所述N路接收信号的延迟时刻，其中，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
  28. 根据权利要求15至27任一项所述的信号处理装置，其特征在于，
    所述控制器还用于，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，所述方向Xj为所述N个方向中的任意一个方向。
  29. 一种信号处理装置，其特征在于，包括：
    处理器和存储器；其中，所述处理器通过调用所述存储器中的代码或指令以执行如下步骤：
    确定存在对应同一信号源的接收信号的N个方向；
    将天线的波束方向配置为所述N个方向；
    估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号，其中，所述N路接收信号和所述N个方向一一对应，所述N为大于1的整数；
    将所述N路延迟补偿后的接收信号进行合路处理。
  30. 根据权利要求29所述的信号处理装置，其特征在于，
    所述确定存在对应同一信号源的接收信号的N个方向包括：利用天线进行全向扫描以确定存在对应同一信号源的接收信号的X1个方向；将所述X1个方向中的接收信号功率相对较大的N个方向，确定为存在对应同一信号源的接收信号的N个方向，所述X1为整数且所述X1大于或者等于所述N。
  31. 根据权利要求29至30任一项所述的信号处理装置，其特征在于，所述 将天线的波束方向配置为所述N个方向，包括：
    将多波束天线的波束方向配置为所述N个方向；
    或者，
    将N个单波束天线的波束方向配置为所述N个方向，所述N个单波束天线和所述N个方向一一对应。
  32. 根据权利要求29至30任一项所述的信号处理装置，其特征在于，所述估算所述天线接收到的N路接收信号的延迟之前，处理器对所述天线接收到的N路接收信号进行均衡处理以得到N路均衡处理后的接收信号；
    所述估算所述天线接收到的N路接收信号的延迟，利用估算出的所述N路接收信号的延迟，分别对所述N路接收信号进行延迟补偿以得到N路延迟补偿后的接收信号包括：
    估算所述N路均衡处理后的接收信号的延迟，利用估算出的所述N路均衡处理后的接收信号的延迟，分别对所述N路均衡处理后的接收信号进行延迟补偿以得到N路延迟补偿后的接收信号。
  33. 根据权利要求32所述的信号处理装置，其特征在于，所述将所述N路延迟补偿后的接收信号进行合路处理包括：
    计算所述N路延迟补偿后的接收信号的合路权值；利用计算出的所述N路延迟补偿后的接收信号的合路权值对所述N路延迟补偿后的接收信号进行加权处理，以得到N路延迟补偿后的加权处理后的接收信号；将所述N路延迟补偿后的加权处理后的接收信号进行合并。
  34. 根据权利要求33所述的信号处理装置，其特征在于，所述计算所述N路延迟补偿后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最小二乘准则计算所述N路延迟补偿后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路延迟补偿后的接收信号的合路权值。
  35. 根据权利要求32至34任一项所述的信号处理装置，其特征在于，所述估算所述N路均衡处理后的接收信号的延迟，包括：
    计算训练序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号 序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
    计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
    基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
  36. 根据权利要求32至34任一项所述的信号处理装置，其特征在于，所述估算所述N路均衡处理后的接收信号的延迟，包括：
    计算参考序列与所述N路均衡处理后的接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路均衡处理后的接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
    计算所述N路均衡处理后的接收信号的延迟时刻，其中，第i路均衡处理后的接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路均衡处理后的接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路均衡处理后的接收信号为所述N路均衡处理后的接收信号中的任意一路；
    基于计算出的所述N路均衡处理后的接收信号的延迟时刻计算出所述N路均衡处理后的接收信号的延迟。
  37. 根据权利要求29至31任一项所述的信号处理装置，其特征在于，所述将所述N路延迟补偿后的接收信号进行合路处理之前，所述处理器对所述N路延迟补偿后的接收信号进行均衡处理以得到N路均衡处理后的接收信号；
    所述将所述N路延迟补偿后的接收信号进行合路处理包括：将所述N路均衡处理后的接收信号进行合路处理。
  38. 根据权利要求37所述的信号处理装置，其特征在于，所述将所述N路均衡处理后的接收信号进行合路处理包括：
    计算所述N路均衡处理后的接收信号的合路权值；利用计算出的所述N路均衡处理后的接收信号的合路权值对所述N路均衡处理后的接收信号进行加权处理，以得到N路均衡处理后的加权处理后的接收信号；将所述N路均衡处理后的加权处理后的接收信号进行合并。
  39. 根据权利要求38所述的信号处理装置，其特征在于，所述计算所述N路均衡处理后的接收信号的合路权值包括：基于最小均方误差准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最小二乘准则计算所述N路均衡处理后的接收信号的合路权值；或者基于最大信噪比准则计算所述N路均衡处理后的接收信号的合路权值。
  40. 根据权利要求37至39任一项所述的信号处理装置，其特征在于，所述估算所述N路接收信号的延迟，包括：
    计算训练序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，所述滑窗的长度与所述训练序列的长度相同；
    计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
  41. 根据权利要求37至39任一项所述的信号处理装置，其特征在于，所述估算所述N路接收信号的延迟，包括：
    计算参考序列与所述N路接收信号中进入到滑窗中的信号序列之间的互相关值，其中，所述参考序列为所述N路接收信号中的第i路接收信号中的长度为L个比特的信号序列，所述滑窗的宽度与所述参考序列的宽度相同；
    计算所述N路接收信号的延迟时刻，第i路接收信号的延迟时刻Ti，为训练序列插入周期内的所述第i路接收信号中进入到滑窗中的各信号序列中的与所述训练序列之间的互相关值最大的信号序列的接收时刻，其中，所述第i路接收信号为所述N路接收信号中的任意一路；基于计算出的所述N路接收信号的延迟时刻计算出所述N路接收信号的延迟。
  42. 根据权利要求29至41任一项所述的信号处理装置，其特征在于，在所述将所述N路延迟补偿后的接收信号进行合路处理之后，
    所述处理器还利用天线进行全向扫描以确定存在对应所述同一信号源的接收信号的X2个方向；在X2个方向中的方向Xi的接收信号的接收信号功率大于方向Xj的接收信号的接收信号功率的情况下，修改所述天线的波束方向配置以使得修改配置后的所述天线的波束方向包括所述方向Xi，所述方向Xi不同于所述N个方向中的任意一个方向，其中，所述方向Xj为所述N个方向中的任意一个方向。
  43. 一种无线传输设备，其特征在于，包括：天线和如权利要求15～42任一项所述的信号处理装置。
PCT/CN2015/072252 2015-02-04 2015-02-04 信号处理方法和相关设备 Ceased WO2016123766A1 (zh)

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