WO2018137138A1 - 相位调整方法及装置 - Google Patents

相位调整方法及装置 Download PDF

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Publication number
WO2018137138A1
WO2018137138A1 PCT/CN2017/072481 CN2017072481W WO2018137138A1 WO 2018137138 A1 WO2018137138 A1 WO 2018137138A1 CN 2017072481 W CN2017072481 W CN 2017072481W WO 2018137138 A1 WO2018137138 A1 WO 2018137138A1
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WO
WIPO (PCT)
Prior art keywords
phase adjustment
phase
reference signal
synchronization reference
base station
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PCT/CN2017/072481
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English (en)
French (fr)
Inventor
张晓风
方李明
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2017/072481 priority Critical patent/WO2018137138A1/zh
Publication of WO2018137138A1 publication Critical patent/WO2018137138A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems

Definitions

  • Embodiments of the present invention relate to the field of communications technologies, and in particular, to a phase adjustment method and apparatus.
  • the data communication is mainly based on data transmission, and can be implemented by using a base station and a terminal.
  • data communication since the data is usually transmitted in the form of symbols, in order to improve the transmission quality of the data, it is usually necessary to adjust the symbol phase of the terminal so that the symbol phase of the terminal and the symbol phase of the base station Synchronize.
  • a Pseudo random-number (PN) sequence is generally used to implement symbol phase synchronization between a terminal and a base station.
  • the specific operation may be: the base station may send a PN sequence to the terminal, and after receiving the PN sequence, the terminal receives the PN sequence.
  • the base station Since the base station sends the PN sequence to the terminal, other data is usually simultaneously transmitted to the terminal. Therefore, the PN sequence may interfere with other data during the transmission. In order to reduce the occurrence of the interference, the transmission power is usually reduced to transmit the PN sequence. However, since the transmission power of the transmission PN sequence is lowered, it may be difficult for the terminal to detect the maximum peak value of the correlation waveform after receiving the PN sequence transmitted by the base station. Therefore, when the phase adjustment of the local PN sequence is performed, the accuracy of the adjustment is lowered.
  • the embodiment of the invention provides a phase adjustment method and device.
  • the technical solution is as follows:
  • a phase adjustment method comprising:
  • the access message carries a synchronization reference signal for adjusting a phase, and the synchronization reference signal is determined based on a synchronous orthogonal code
  • phase adjustment information or the detection failure information sent by the base station Determining whether the phase adjustment information or the detection failure information sent by the base station is received within a specified time period, where the specified time period is a time after the sending of the access message and a time specified by the time when the access message is sent And the phase adjustment information or the detection failure information is determined by the base station based on the synchronization reference signal, where the phase adjustment information includes a phase adjustment direction and a phase adjustment size;
  • the detection failure information sent by the base station is received within the specified time period, or the phase adjustment information or the detection failure information sent by the base station is not received within the specified time period, based on a preset phase adjustment rule Performing phase adjustment on the synchronization reference signal, where the preset phase adjustment rule is used to describe a direction and a large phase adjustment small.
  • the synchronization reference signal is determined by the terminal based on the synchronous orthogonal code
  • the synchronous orthogonal code may be a codeword used in the codeword set stored by the terminal for processing the user data.
  • a synchronous orthogonal code refers to a codeword or a codeword sequence which can be used as an address code in the case of synchronous transmission and has good autocorrelation characteristics and cross-correlation characteristics. Therefore, in the embodiment of the present invention, a synchronous reference is used.
  • the signal is phase-adjusted to improve the accuracy of the phase adjustment.
  • the synchronous orthogonal code may be a Walsh code or the like.
  • the unmodulated synchronous orthogonal code may be determined as a synchronization reference signal.
  • the synchronous orthogonal code may be modulated with a PN sequence, and the obtained modulation result is determined to be synchronized. And reference the signal, and send the synchronization reference signal to the base station, so that the base station acquires phase adjustment information by using the synchronization reference signal.
  • the synchronization reference signal may further modulate the access message, thereby improving stability of transmitting the synchronization reference signal, and further improving accuracy of subsequent phase adjustment.
  • the sending, by the base station, an access message includes:
  • the access message is sent to the base station on a time slot indicated by the time slot indication information.
  • the terminal may send the other information of the terminal to the base station at the same time as the synchronization reference signal is sent, for example, the address information, the check code, and the like of the terminal may be sent.
  • the synchronization error may be too large when the data is transmitted between the terminal and the base station, and the signal and noise are relatively small, so that the base station cannot send the terminal.
  • the information is demodulated and affects subsequent operations. Therefore, before the terminal sends an access message to the base station, the terminal can also adjust the phase of the synchronization reference signal by using the minimum phase unit, so that the subsequent base station receives the access sent by the terminal. When the message is received, the access message can be demodulated accurately, which ensures the feasibility of subsequent phase adjustment operations.
  • the method further includes:
  • phase adjustment of the synchronization reference signal based on the preset phase adjustment rule includes:
  • the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction and the minimum phase unit, phase adjustment of the phase of the synchronization reference signal according to the preset phase direction according to the minimum phase unit;
  • the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction and the chip unit, phase adjustment of the phase of the synchronization reference signal according to the preset phase direction according to the chip unit;
  • phase adjustment rule includes performing phase adjustment based on the preset phase direction, the minimum phase unit, and the chip unit, based on the preset phase direction, respectively, phase of the synchronization reference signal
  • the phase adjustment is alternated in accordance with the minimum phase unit and the chip unit.
  • the degree of each adjustment is small. Therefore, when the terminal adjusts the phase of the synchronization reference signal according to the preset phase direction according to the chip unit, Multiple adjustments can be made based on the chip unit.
  • phase adjustment method comprising:
  • the correlation waveform is a waveform obtained by performing a correlation operation between the synchronization reference signal carried in the access message and the locally stored synchronization reference signal, where the peak-to-average ratio is The ratio between the maximum peak value and the amplitude mean of the correlation waveform, or the ratio between the power and power mean of the peak corresponding to the largest peak in the correlation waveform;
  • the terminal When the peak-to-average ratio is less than a preset threshold, sending a detection failure message to the terminal, so that after receiving the detection failure message, the terminal performs phase on the synchronization reference signal based on a preset phase adjustment rule. Adjusting, the preset phase adjustment rule is used to describe the direction and size of the phase adjustment;
  • phase adjustment information of the synchronization reference signal based on a peak corresponding to a maximum peak in the correlation waveform, and transmitting the phase adjustment information to the And a terminal, so that the terminal performs phase adjustment on the synchronization reference signal based on the phase adjustment information.
  • the synchronization reference signal is determined by the terminal based on the synchronous orthogonal code
  • the synchronous orthogonal code may be a codeword used in the codeword set stored by the terminal for processing the user data.
  • the synchronous orthogonal code has a good autocorrelation property and a cross-correlation property. Therefore, in the embodiment of the present invention, the phase adjustment operation is performed by synchronizing the reference signal, thereby improving the accuracy of the phase adjustment.
  • the base station may send a detection failure message to the terminal when the peak-to-average ratio is less than the preset threshold, or may not perform any processing.
  • the base station may compare the correlation waveform with a preset waveform, and compare a peak corresponding to a maximum peak in the correlation waveform with a position of a preset reference point in the preset waveform; and determine the maximum peak corresponding to The moving direction of the wave peak to the preset reference point and the moving distance; the moving direction is determined as the phase adjusting direction, and the moving distance is determined as the phase adjusting size.
  • the determining, according to the synchronization reference signal for adjusting a phase carried in the access message, determining a peak-to-average ratio of the correlation waveform including:
  • Dividing the maximum peak by the amplitude average yields a peak-to-average ratio of the correlation waveform.
  • the base station may perform a correlation operation on the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain the correlation waveform, and may also synchronize the synchronization reference signal carried in the access message with the local storage.
  • the correlation signal is decomposed by the reference signal to obtain the correlation waveform.
  • the determining, according to the synchronization reference signal for adjusting a phase carried in the access message, determining a peak-to-average ratio of the correlation waveform including:
  • the method when receiving the access message sent by the terminal, determining, according to the synchronization reference signal with the adjusted phase carried in the access message, determining the peak-to-average ratio of the correlation waveform, the method further includes:
  • the broadcast message carries time slot indication information, and is used to indicate that the terminal sends the synchronization reference signal on a time slot indicated by the time slot indication information.
  • the terminal identifier of the terminal may be stored in the base station. Therefore, in order to achieve fine adjustment of the phase between the base station and the terminal, The base station may send the broadcast message to the terminal corresponding to the terminal identifier based on the terminal identifier.
  • the terminal identifier may not be stored in the base station, and therefore, the base station may send a broadcast message to multiple terminals.
  • phase adjustment device having a function of realizing the behavior of the phase adjustment method in the first aspect described above.
  • the phase adjustment device includes at least one module for implementing the phase adjustment method provided by the first aspect described above.
  • phase adjustment device having a function of realizing the behavior of the phase adjustment method in the second aspect described above.
  • the phase adjustment device includes at least one module for implementing the phase adjustment method provided by the second aspect described above.
  • a terminal comprising: a transmitter, a receiver, a memory, and a processor, wherein the memory, the transmitter, and the receiver are respectively connected to the processor, and the memory is stored There is program code for calling the program code to perform the phase adjustment method described in the first aspect above.
  • a base station comprising: a transmitter, a receiver, a memory, and a processor, wherein the memory, the transmitter, and the receiver are respectively connected to the processor, and the memory is stored There is program code for calling the program code to perform the phase adjustment method described in the second aspect above.
  • a computer storage medium for storing computer software instructions for a terminal provided by the fifth aspect, comprising a program designed to perform the first aspect described above.
  • a computer storage medium for storing computer software instructions for a base station provided by the sixth aspect above, comprising a program for performing the second aspect described above.
  • an access message carrying a synchronization reference signal may be sent to a base station, and the detection failure information sent by the base station is received within a specified time period.
  • the phase of the synchronization reference signal may be adjusted based on the preset phase adjustment rule. Since the synchronous orthogonal code has an autocorrelation property and a cross-correlation property, the synchronous reference signal also has an autocorrelation property, and does not interfere with other data in the process of transmitting the synchronous reference signal, thereby being relatively easy.
  • Detecting the maximum peak value of the correlation waveform also ensures the accuracy of the phase adjustment, thereby ensuring the phase synchronization of the symbol of the data transmission when the data communication between the subsequent terminal and the base station is performed, thereby further improving the quality of the data transmission. .
  • FIG. 1A is a schematic structural diagram of a phase adjustment system architecture according to an embodiment of the present invention.
  • FIG. 1B is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 3A is a schematic structural diagram of a first phase adjustment apparatus according to an embodiment of the present invention.
  • FIG. 3B is a schematic structural diagram of a sending module according to an embodiment of the present disclosure.
  • 3C is a schematic structural diagram of a second phase adjustment apparatus according to an embodiment of the present invention.
  • 3D is a schematic structural diagram of a second adjustment module according to an embodiment of the present invention.
  • FIG. 4A is a schematic structural diagram of a third phase adjustment apparatus according to an embodiment of the present invention.
  • FIG. 4B is a schematic structural diagram of a first determining module according to an embodiment of the present invention.
  • 4C is a schematic structural diagram of another first determining module according to an embodiment of the present invention.
  • 4D is a schematic structural diagram of a fourth phase adjustment apparatus according to an embodiment of the present invention.
  • FIG. 1A is a schematic structural diagram of a phase adjustment system architecture according to an exemplary embodiment.
  • the system includes a base station 1 and a terminal 2.
  • the base station 1 and the terminal 2 can communicate with each other.
  • the symbol phase between the terminal 2 and the base station 1 is usually adjusted.
  • the base station 1 may determine a peak-to-average ratio based on the synchronization reference signal, and determine the phase of the terminal 2 when the peak-to-average ratio is greater than a preset threshold. The information is adjusted and the phase adjustment information is sent to the terminal 2.
  • the terminal 2 receives the phase adjustment information, the phase of the synchronization reference signal can be adjusted.
  • the phase adjustment may be performed on the synchronization reference signal based on the preset phase adjustment rule.
  • the transmission power is usually reduced to transmit the PN sequence. Since the transmission power of the transmitted PN sequence is lowered, it may be difficult for the terminal to detect the maximum peak value of the relevant waveform after receiving the PN sequence transmitted by the base station, thereby reducing the accuracy of the phase adjustment.
  • the phase rule is to adjust the phase of the minimum phase unit or the chip unit according to the preset direction, thereby improving the accuracy of the phase adjustment when the phase adjustment is performed by the preset phase adjustment rule, thereby improving the quality of the data transmission.
  • the phase adjustment system may include only one terminal 2 and a plurality of terminals 2.
  • only three terminals 2 are taken as an example for description.
  • FIG. 1B is a schematic structural diagram of a base station, which mainly includes a processor 110 having one or more processing cores, a memory 120 including one or more computer readable storage media, and communication, according to an exemplary embodiment.
  • the bus 130, the transmitter 140, the receiver 150, and the like, and the memory 120, the transmitter 140, and the receiver 150 are connected to the processor 110 via the communication bus 130, respectively.
  • the structure of the base station shown in FIG. 1B does not constitute a limitation to the base station, and may include more or less components than those illustrated, or may combine some The components, or the different components, are not limited in this embodiment of the present invention.
  • the processor 110 is a control center of the base station, and the processor 110 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more An integrated circuit for controlling the execution of the program of the present invention.
  • the processor 110 can implement the phase adjustment method provided by the embodiment of FIG. 2 below by running or executing a software program and/or module stored in the memory 120 and calling data stored in the memory 120.
  • the memory 120 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or may store information and Other types of dynamic storage devices of instructions may also be Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other optical discs. Storage, optical storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures And any other medium that can be accessed by the integrated circuit, but is not limited thereto.
  • the memory 120 can exist independently and be coupled to the processor 110 via a communication bus 130.
  • the memory 120 can also be integrated with the processor 110.
  • Transmitter 140 and receiver 150 use devices such as any transceiver for communicating with other devices or communication networks, such as Wireless Local Area Networks (WLANs) and the like.
  • WLANs Wireless Local Area Networks
  • the communication bus 130 described above can include a path for communicating information between the processor 110, the memory 120 transmitter 140, and the receiver 150.
  • FIG. 2 is a flowchart of a phase adjustment method according to an exemplary embodiment. Referring to FIG. 2, the method includes the following steps.
  • Step 201 The base station sends a broadcast message to the terminal, where the broadcast message carries the time slot indication information, and is used to indicate that the terminal sends the synchronization reference signal on the time slot indicated by the time slot indication information.
  • the base station may send the broadcast message to one terminal, or may send the broadcast message to multiple terminals. Specifically, the following two possibilities may be included.
  • the terminal identifier of the terminal may be stored in the base station. Therefore, in order to achieve fine adjustment of the phase between the base station and the terminal, The base station may send the broadcast message to the terminal corresponding to the terminal identifier based on the terminal identifier.
  • the terminal identifier is used to uniquely identify the terminal, and the terminal identifier may be a MAC (Media Access Control) address, a factory serial number, and the like of the terminal.
  • MAC Media Access Control
  • the terminal identifier may not be stored in the base station, and therefore, the base station may send a broadcast message to multiple terminals.
  • the synchronization reference signal is determined by the terminal based on the synchronous orthogonal code
  • the synchronous orthogonal code may be a codeword used in the codeword set stored by the terminal for processing the user data.
  • a synchronous orthogonal code refers to a codeword or a codeword sequence which can be used as an address code in the case of synchronous transmission and has good autocorrelation characteristics and cross-correlation characteristics. Therefore, in the embodiment of the present invention, a synchronous reference is used.
  • the signal is phase-adjusted to improve the accuracy of the phase adjustment.
  • the synchronous orthogonal code may be a Walsh code or the like.
  • the broadcast message sent by the base station may carry the time slot indication information, of course, The time slot indication information may not be carried.
  • the time slot indication information may be carried in the broadcast message sent by the base station in order to facilitate subsequent management of the terminal.
  • Step 202 When the terminal receives the broadcast message sent by the base station, the terminal sends an access message to the base station, where the access message carries a synchronization reference signal for adjusting the phase.
  • the terminal may send an access message to the base station when receiving the broadcast message sent by the base station, or may send the access message when the broadcast message sent by the base station is not received. And when the terminal receives the broadcast message sent by the base station, the terminal may determine whether the broadcast message carries the time slot indication information; when the broadcast message carries the time slot indication information, when the time slot indication information indicates The access message is sent to the base station on the slot. Certainly, the terminal may also send the access message to the base station when receiving the broadcast message sent by the base station, whether the time slot indication information is carried in the broadcast message.
  • the terminal may parse the received broadcast message and identify the parsed content to determine whether the broadcast message carries the slot indication information.
  • the terminal may parse the received broadcast message and identify the parsed content to determine whether the broadcast message carries the slot indication information.
  • the unmodulated synchronous orthogonal code may be determined as a synchronization reference signal.
  • the synchronous orthogonal code may be performed with a PN sequence. Modulation, determining the obtained modulation result as a synchronization reference signal, and transmitting the synchronization reference signal to the base station, so that the base station acquires phase adjustment information through the synchronization reference signal.
  • the synchronization reference signal may further modulate the access message, thereby improving stability of transmitting the synchronization reference signal, and further improving accuracy of subsequent phase adjustment.
  • the terminal may send other information of the terminal to the base station at the same time as the synchronization reference signal is sent, for example, address information, a check code, and the like of the terminal may be sent.
  • the synchronization error may be too large when the data is transmitted between the terminal and the base station, and the signal and noise are relatively small.
  • the base station cannot demodulate the information sent by the terminal, which affects the subsequent operations. Therefore, before the terminal sends the access message to the base station, the terminal can also adjust the phase of the synchronization reference signal by using the minimum phase unit, thereby receiving at the subsequent base station.
  • the access message can be demodulated accurately, which ensures the feasibility of the subsequent phase adjustment operation.
  • Step 203 When the base station receives the access message sent by the terminal, determining a peak-to-average ratio of the correlation waveform based on the synchronization reference signal for adjusting the phase carried in the access message, where the correlation waveform is carried in the access message.
  • the waveform obtained by correlating the synchronization reference signal with the locally stored synchronization reference signal, the peak-to-average ratio is the ratio between the maximum peak value and the amplitude mean of the correlation waveform, or the peak corresponding to the largest peak in the correlation waveform. The ratio between the power and the power mean.
  • the base station determines, according to the synchronization reference signal for adjusting the phase carried in the access message,
  • the operation of the peak-to-average ratio of the correlation waveform may be: performing a correlation operation on the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain the correlation waveform; performing peak detection on the correlation waveform; determining the correlation waveform The maximum peak value and the amplitude mean of the correlation waveform; dividing the maximum peak value by the amplitude average value to obtain a peak-to-average ratio of the correlation waveform.
  • the base station when the peak-to-average ratio is a ratio between a power and a power mean of a peak corresponding to a maximum peak in the correlation waveform, the base station is configured to adjust a phase based on the information carried in the access message.
  • Synchronizing the reference signal, determining the peak-to-average ratio of the associated waveform may be: synchronizing the reference signal carried in the access message with the local storage Synchronizing the reference signal to perform a correlation operation to obtain the correlation waveform; performing peak detection on the correlation waveform; determining a power of a peak corresponding to a maximum peak in the correlation waveform and a power average of the correlation waveform; and a peak power corresponding to the maximum peak Dividing by the power average gives the peak-to-average ratio of the correlation waveform.
  • the base station may perform a correlation operation on the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain the correlation waveform, and may also synchronize the synchronization reference signal carried in the access message with the local storage.
  • the correlation operation is performed by decomposing the reference signal to obtain the correlation operation.
  • the related operation may be referred to the related art, which is not described in detail in the embodiment of the present invention.
  • the base station can detect all peaks of the correlation waveform, or can only detect part of the peak of the correlation waveform, and the base station can perform peak detection on the correlation waveform through the peak detector, and of course, peak detection can be performed by other methods.
  • the peak-to-average ratio may be a ratio between a maximum peak value and an amplitude mean value of the correlation waveform, or a power and power mean value of a peak corresponding to a maximum peak value in the correlation waveform.
  • the ratio between the peaks in practical applications, can also be the ratio of other parameters of the relevant waveform.
  • Step 204 The base station determines whether the peak-to-average ratio is less than the preset threshold, and when the peak-to-average ratio is less than the preset threshold, performing the following step 205; when the peak-to-average ratio is greater than or equal to the preset threshold The operation of step 206 below is performed.
  • Step 205 When the peak-to-average ratio is less than the preset threshold, the base station sends a detection failure message to the terminal.
  • the preset threshold may be set in advance, for example, the preset threshold may be 1, 2, 3, and the like.
  • the base station may send a detection failure message to the terminal when the peak-to-average ratio is less than the preset threshold, or may not perform any processing.
  • Step 206 When the peak-to-average ratio is greater than or equal to a preset threshold, the base station determines phase adjustment information of the synchronization reference signal based on a peak corresponding to the maximum peak in the correlation waveform, where the phase adjustment information includes a phase adjustment direction and a phase adjustment size. And transmitting the phase adjustment information to the terminal.
  • the base station may compare the correlation waveform with a preset waveform, and compare a peak corresponding to a maximum peak in the correlation waveform with a position of a preset reference point in the preset waveform; and determine a peak corresponding to the maximum peak. Moving to a moving direction of the preset reference point and a moving distance; determining the moving direction as the phase adjusting direction, determining the moving distance as a phase adjustment size, and transmitting the phase adjustment information to the terminal.
  • the base station may send the broadcast message to a terminal, and may also send the broadcast message to multiple terminals, and at the same time, any one of the multiple terminals may send the synchronization reference signal to the terminal.
  • the address information is sent to the base station. Therefore, after the base station determines the phase adjustment information, the phase adjustment information can be accurately sent to the corresponding terminal, and the base station can send the phase adjustment information based on the address information sent by the terminal. To the corresponding terminal.
  • Step 207 The terminal determines whether the phase adjustment information or the detection failure information sent by the base station is received within a specified time period, where the specified time period is a time interval after the transmission of the access message and the time when the access message is sent is specified. segment.
  • the base station may send a detection failure message to the terminal when the peak-to-average ratio is less than the preset threshold, and may not send any message.
  • the terminal may always wait for the message state, wasting.
  • the operating resources of the terminal bring a burden to the operation of the terminal. Therefore, in order to save the operating resources of the terminal, reduce
  • the terminal can also determine whether the phase adjustment information or the detection failure message sent by the base station is received within a specified time period, and the specified time period is after the sending of the access message and is different from the time when the access message is sent. The time period for which the duration is specified.
  • the specified duration may be set in advance, for example, the specified duration may be 1 minute, 2 minutes, 3 minutes, and the like.
  • Step 208 When the terminal receives the detection failure information sent by the base station within the specified time period, or does not receive the phase adjustment information sent by the base station within the specified time period, the synchronization reference is based on the preset phase adjustment rule.
  • the signal is phase adjusted, and the preset phase adjustment rule is used to describe the direction and magnitude of the phase adjustment.
  • the operation of adjusting the phase of the synchronization reference signal by the terminal based on the preset phase adjustment rule may include the following three cases.
  • the terminal when the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction and the minimum phase unit, the terminal performs phase adjustment on the phase of the synchronization reference signal according to the minimum phase unit based on the preset phase direction.
  • the base station and the terminal may have performed coarse adjustment of the phase before performing the above steps.
  • the terminal only needs to follow the minimum phase of the phase of the synchronization reference signal based on the preset phase direction.
  • the unit can be fine-tuned by making one or more adjustments.
  • the terminal can obtain the minimum phase unit by adjusting the phase of the clock to The phase of the synchronization reference signal is adjusted.
  • the terminal can obtain the minimum phase unit not only by adjusting the phase of the clock, but also by other means.
  • the timing at which the terminal adjusts the clock transmission edge signal is to adjust the phase of the clock, and the terminal can adjust the phase of the clock through the phase locked loop.
  • the actual application can also be adjusted by other methods.
  • the operation of the terminal to adjust the phase of the clock by means of a phase-locked loop or the like can be referred to the related art.
  • the base station and the terminal may not perform phase adjustment before performing the foregoing steps.
  • the phase of the synchronization reference signal based on the preset phase direction may be repeatedly performed according to the minimum phase.
  • the unit performs phase adjustment operations.
  • the terminal when the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction and the chip unit, the terminal performs phase adjustment on the phase of the synchronization reference signal according to the chip unit according to the preset phase direction.
  • the phase when the terminal adjusts the phase by the chip unit, the phase may be adjusted according to a fractional multiple of the chip unit, or the phase may be adjusted according to an integer multiple of the chip unit. Wherein, since the phase adjustment is performed according to the chip unit, the degree of each adjustment is small. Therefore, when the terminal performs phase adjustment on the phase of the synchronization reference signal according to the chip unit based on the preset phase direction, it is required to be based on the The chip unit is adjusted multiple times.
  • the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction, the minimum phase unit, and the chip unit
  • the phase of the synchronization reference signal is respectively followed according to the preset phase direction.
  • the minimum phase unit and the chip unit alternately perform phase adjustment.
  • each codeword includes a plurality of chips. Therefore, in order to improve the speed and accuracy of the phase adjustment, the terminal may select the phase of the synchronization reference signal according to the minimum phase unit and the code according to the preset phase direction.
  • the slice unit performs multiple phase adjustments alternately. And when the terminal adjusts the phase through the chip unit, The phase is adjusted by a fractional multiple of the chip unit, and the phase can also be adjusted in integer multiples of the chip unit.
  • the method of alternately performing phase adjustment may be that the unit of the minimum phase and the chip unit alternately perform phase adjustment, or may perform the phase adjustment of the minimum phase unit multiple times, and then perform multiple times of chip. The phase adjustment of the unit.
  • the phase of the synchronization reference signal can be adjusted based on the phase adjustment direction and the phase adjustment size.
  • the terminal can adjust the waveform of the synchronization reference signal to the right direction by 3 chip units.
  • the synchronization reference signal sent by the terminal to the base station may be a synchronous orthogonal code that does not pass modulation, the peak-to-average ratio of the autocorrelation of the synchronization reference signal is not high enough. Therefore, in order to further improve the phase adjustment accuracy, The synchronous orthogonal code can be further modulated with the PN sequence to obtain a synchronization reference signal with strong autocorrelation characteristics, and then the operations of the above steps 201 to 208 are repeatedly performed, thereby improving the accuracy of the phase adjustment and realizing the phase adjustment. Fine tuning.
  • the terminal may send the synchronization reference signal to the base station when receiving the broadcast message carrying the slot indication information.
  • the base station may perform a correlation operation on the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain a correlation waveform.
  • the correlation waveform is then subjected to peak detection, and when the peak-to-average ratio of the correlation waveform is less than a preset threshold, the base station may send the detection failure message to the terminal or not transmit any message.
  • the phase adjustment may be performed by using a preset phase adjustment rule.
  • the synchronous orthogonal code has an autocorrelation property and a cross-correlation property
  • the synchronous reference signal also has an autocorrelation property and a cross-correlation property, and does not interfere with other data in the process of transmitting the synchronous reference signal, thereby It is relatively easy for the base station or the terminal to detect the maximum peak value of the correlation waveform.
  • the preset phase rule refers to adjusting the phase of the synchronous reference signal according to the preset direction by the minimum phase unit or the chip unit, the phase adjustment can be improved when the phase adjustment is performed by the preset phase adjustment rule. The accuracy, and thus the data communication between the subsequent terminal and the base station, the phase of the symbol of the data transmission is synchronized, further improving the quality of the data transmission.
  • FIG. 3A is a schematic structural diagram of a phase adjustment apparatus according to an embodiment of the present invention.
  • the apparatus includes: a sending module 301, a determining module 302, and a first adjusting module 303.
  • the sending module 301 is configured to send, to the base station, an access message, where the access message carries a synchronization reference signal for adjusting a phase, where the synchronization reference signal is determined based on a synchronous orthogonal code;
  • the determining module 302 is configured to determine whether the phase adjustment information or the detection failure information sent by the base station is received within a specified time period, where the specified time period is after the time when the access message is sent and the time when the access message is sent is specified.
  • the phase adjustment information or the detection failure information is determined by the base station based on the synchronization reference signal, where the phase adjustment information includes a phase adjustment direction and a phase adjustment size;
  • the first adjustment module 303 is configured to be based on the preset when the detection failure information sent by the base station is received within the specified time period, or the phase adjustment information or the detection failure information sent by the base station is not received within the specified time period.
  • the phase adjustment rule performs phase adjustment on the synchronization reference signal, and the preset phase adjustment rule is used to describe the direction and size of the phase adjustment.
  • the sending module 301 includes:
  • the determining sub-module 3011 is configured to: when receiving the broadcast message sent by the base station, determine whether the broadcast message carries the time slot indication information;
  • the sending sub-module 3012 is configured to send the access message to the base station in the time slot indicated by the time slot indication information when the time slot indication information is carried in the broadcast message.
  • the apparatus further includes:
  • the second adjustment module 304 is configured to adjust the phase of the synchronization reference signal based on the phase adjustment direction and the phase adjustment size when receiving the phase adjustment information sent by the base station.
  • the second adjustment module 304 includes:
  • the first adjustment sub-module 3041 is configured to: when the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction and the minimum phase unit, the phase of the synchronization reference signal is performed according to the minimum phase unit according to the preset phase direction. Phase adjustment
  • the second adjustment sub-module 3042 is configured to: when the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction and the chip unit, the phase of the synchronization reference signal is based on the chip unit based on the preset phase direction. Perform phase adjustment;
  • the third adjustment sub-module 3043 is configured to: when the preset phase adjustment rule includes performing phase adjustment based on the preset phase direction, the minimum phase unit, and the chip unit, based on the preset phase direction, the synchronization reference signal
  • the phases are alternately phase-adjusted according to the minimum phase unit and the chip unit.
  • the terminal may send the synchronization reference signal to the base station when receiving the broadcast message carrying the slot indication information.
  • the base station may perform a correlation operation on the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain a correlation waveform.
  • the correlation waveform is then subjected to peak detection, and when the peak-to-average ratio of the correlation waveform is less than a preset threshold, the base station may send the detection failure message to the terminal or not transmit any message.
  • the phase adjustment may be performed by using a preset phase adjustment rule.
  • the synchronous orthogonal code has an autocorrelation property and a cross-correlation property
  • the synchronous reference signal also has an autocorrelation property and a cross-correlation property, and does not interfere with other data in the process of transmitting the synchronous reference signal, thereby It is relatively easy for the base station or the terminal to detect the maximum peak value of the correlation waveform.
  • the preset phase rule refers to adjusting the phase of the synchronous reference signal according to the preset direction by the minimum phase unit or the chip unit, the phase adjustment can be improved when the phase adjustment is performed by the preset phase adjustment rule. The accuracy, and thus the data communication between the subsequent terminal and the base station, the phase of the symbol of the data transmission is synchronized, further improving the quality of the data transmission.
  • FIG. 4A is a phase adjustment apparatus according to an exemplary embodiment.
  • the apparatus includes: a first determining module 401, a first sending module 402, and a second determining module 403.
  • the first determining module 401 is configured to determine, according to the synchronization reference signal for adjusting the phase carried in the access message, the peak-to-average ratio of the correlation waveform when the access message sent by the terminal is received, where the correlation waveform is the connection A waveform obtained by correlating a synchronization reference signal carried in the message with a locally stored synchronization reference signal, the peak-to-average ratio being a ratio between a maximum peak value and an amplitude mean value of the correlation waveform, or a maximum peak value of the correlation waveform The ratio of the power of the corresponding peak to the mean of the power;
  • the first sending module 402 is configured to send a detection failure message to the terminal when the peak-to-average ratio is less than a preset threshold, so that the terminal, after receiving the detection failure message, is based on a preset phase adjustment rule. Synchronizing the reference signal for phase adjustment, the preset phase adjustment rule is used to describe the direction and size of the phase adjustment;
  • a second determining module 403 configured to determine phase adjustment information of the synchronization reference signal based on a peak corresponding to a maximum peak in the correlation waveform when the peak-to-average ratio is greater than or equal to the preset threshold, and send the phase adjustment information To the terminal, so that the terminal performs phase adjustment on the synchronization reference signal based on the phase adjustment information.
  • the first determining module 401 includes:
  • the first calculation sub-module 4011 is configured to perform a correlation operation between the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain the correlation waveform.
  • a first detecting sub-module 4012 configured to perform peak detection on the correlation waveform
  • a first determining sub-module 4013 configured to determine a maximum peak value in the correlation waveform and an amplitude mean value of the correlation waveform
  • the second calculation sub-module 4014 is configured to divide the maximum peak value by the amplitude average value to obtain a peak-to-average ratio of the correlation waveform.
  • the first determining module 401 includes:
  • the third calculation sub-module 4015 is configured to perform a correlation operation between the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain the correlation waveform.
  • a second detecting sub-module 4016 configured to perform peak detection on the correlation waveform
  • a second determining sub-module 4017 configured to determine a power of a peak corresponding to a maximum peak in the correlation waveform and a power average of the correlation waveform
  • the fourth calculation sub-module 4018 is configured to divide the power of the peak corresponding to the maximum peak by the power average to obtain a peak-to-average ratio of the correlation waveform.
  • the apparatus further includes:
  • the second sending module 404 is configured to send a broadcast message to the terminal, where the broadcast message carries time slot indication information, and is used to indicate that the terminal sends the synchronization reference signal on the time slot indicated by the time slot indication information.
  • the terminal may send the synchronization reference signal to the base station when receiving the broadcast message carrying the slot indication information.
  • the base station may perform a correlation operation on the synchronization reference signal carried in the access message and the locally stored synchronization reference signal to obtain a correlation waveform.
  • the correlation waveform is then subjected to peak detection, and when the peak-to-average ratio of the correlation waveform is less than a preset threshold, the base station may send the detection failure message to the terminal or not transmit any message.
  • the phase adjustment may be performed by using a preset phase adjustment rule.
  • the synchronous orthogonal code has an autocorrelation property and a cross-correlation property
  • the synchronous reference signal also has an autocorrelation property and a cross-correlation property, and does not interfere with other data in the process of transmitting the synchronous reference signal, thereby It is relatively easy for the base station or the terminal to detect the maximum peak value of the correlation waveform.
  • the preset phase rule refers to adjusting the phase of the synchronous reference signal according to the preset direction by the minimum phase unit or the chip unit, the phase adjustment can be improved when the phase adjustment is performed by the preset phase adjustment rule. The accuracy, and thus the data communication between the subsequent terminal and the base station, the phase of the symbol of the data transmission is synchronized, further improving the quality of the data transmission.
  • phase adjustment device provided by the foregoing embodiment is only illustrated by the division of each functional module in the phase adjustment. In actual applications, the function distribution may be performed by different functional modules as needed. In order to divide the internal structure of the device into different functional modules to complete all or part of the functions described above.
  • phase adjustment device and the phase adjustment method embodiment provided in the foregoing embodiments are in the same concept, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种相位调整方法及装置，属于通信技术领域。所述方法包括：终端在接收到携带时隙指示信息的广播消息时，可以将携带同步参考信号的接入消息发送至基站。基站在接收到该接入消息时，可以基于该同步参考信号确定相关波形，并在相关波形的峰均比小于预设阈值时，将检测失败信息发送至该终端或者不发送任何消息。当该终端接收到基站发送的检测失败消息或者未在指定时间段内接收到基站发送的任何消息时，可以通过预设相位调整规则进行相位调整。由于该预设相位规则是指按照预设方向进行最小相位单位或者码片单位的相位调整，从而在通过该预设相位调整规则进行相位调整时，提高了相位调整的准确性，进而提高了数据传输的质量。

Description

相位调整方法及装置 技术领域
本发明实施例涉及通信技术领域，特别涉及一种相位调整方法及装置。
背景技术
随着通信技术的发展，数据通信的应用范围越来越广泛。其中，该数据通信主要以数据传输为基础，并且可以依靠基站和终端来实现。在进行数据通信时，由于数据通常是以码元的形式来传输，因此，为了提高数据的传输质量，通常需要对终端的码元相位进行调整，使终端的码元相位与基站的码元相位进行同步。
目前，通常采用伪随机数(Pseudo random-number，PN)序列实现终端与基站之间的码元相位同步，具体操作可以为：基站可以向终端发送一个PN序列，终端在接收到该PN序列后，确定接收到的PN序列与本地的PN序列之间的相关波形；然后将该相关波形的最大峰值与预设峰值进行比较；当该相关波形的最大峰值大于或等于该预设峰值时，确定该终端接收到的PN序列与本地的PN序列的相位一致；当该相关波形的最大峰值小于该预设峰值时，终端对本地的PN序列码的相位进行调整，然后重复执行上述确定接收到的PN序列与本地的PN序列之间的相关波形的操作，直至该相关波形的最大峰值大于或等于该预设峰值，从而使后续终端与基站之间进行数据通信时，数据传输的码元相位是同步的，进而提高了数据传输的质量。
由于基站向终端发送PN序列时，通常还将其他数据同时发送给终端，因此，该PN序列在传输过程中会对其他数据造成干扰。为了减少该干扰的发生，通常会降低发送功率来发送该PN序列，但是，由于降低发送PN序列的发送功率，可能会导致终端在接收到基站发送的PN序列后，难以检测相关波形的最大峰值，从而对本地的PN序列进行相位调整时，调整的准确度降低。
发明内容
为了提高相位调整的准确度，从而提高数据传输的质量，本发明实施例提供了一种相位调整方法及装置。所述技术方案如下：
第一方面，提供了一种相位调整方法，所述方法包括：
向基站发送接入消息，所述接入消息携带用于调整相位的同步参考信号，所述同步参考信号为基于同步正交码确定得到；
判断是否在指定时间段内接收到所述基站发送的相位调整信息或检测失败信息，所述指定时间段为发送所述接入消息之后且与发送所述接入消息的时间相距指定时长的时间段，所述相位调整信息或所述检测失败信息均为所述基站基于所述同步参考信号确定得到，所述相位调整信息包括相位调整方向和相位调整大小；
当在所述指定时间段内接收到所述基站发送的检测失败信息，或者未在所述指定时间段内接收到所述基站发送的相位调整信息或检测失败信息时，基于预设相位调整规则对所述同步参考信号进行相位调整，所述预设相位调整规则用于描述进行相位调整的方向和大 小。
需要说明的是，同步参考信号是终端基于同步正交码确定得到的，且该同步正交码可以为终端存储的码字集合中用于对用户数据进行处理的码字。通常情况下同步正交码是指在同步传输的情况下可以作为地址码，且具有良好的自相关特性以及互相关特性的码字或码字序列，因此，在本发明实施例中通过同步参考信号进行相位调整的操作，从而可以提高相位调整的准确度。其中，该同步正交码可以为Walsh(沃什)码等等。
另外，可以将未经过调制的同步正交码确定为同步参考信号，当然为了提高相位调整的准确度，也可以将该同步正交码与一个PN序列进行调制，将得到的调制结果确定为同步参考信号，并将该同步参考信号发送至基站，使基站通过该同步参考信号获取相位调整信息。可选地，该同步参考信号还可以进一步调制接入消息，从而提高传输该同步参考信号的稳定性，进一步的提高了后续调整相位的准确度。
可选地，所述向基站发送接入消息，包括：
当接收到所述基站发送的广播消息时，判断所述广播消息中是否携带时隙指示信息；
当所述广播消息中携带所述时隙指示信息时，在所述时隙指示信息所指示的时隙上向所述基站发送所述接入消息。
可选地，该终端在发送该同步参考信号的同时，还可以将该终端的其他信息一并发送给该基站，比如，可以发送该终端的地址信息、校验码等等。
可选地，由于当终端与基站之间的相位相差太大时，可能会导致终端与基站之间在进行数据传输时，同步误差过大，信噪比较小，从而造成基站无法对终端发送的信息进行解调，影响后续的操作，因此，终端在向基站发送接入消息之前，该终端还可以自行通过最小相位单位调整同步参考信号的相位，从而在后续基站接收到终端发送的接入消息时，可以准确的对该接入消息进行解调，保证了后续进行相位调整操作的可行性。
可选地，所述向基站发送接入消息之后，还包括：
当接收到所述基站发送的相位调整信息时，基于所述相位调整方向和所述相位调整大小，对所述同步参考信号的相位进行调整。
可选地，所述基于预设相位调整规则对所述同步参考信号进行相位调整，包括：
当所述预设相位调整规则包括基于预设相位方向和最小相位单位进行相位调整时，基于所述预设相位方向对所述同步参考信号的相位按照所述最小相位单位进行相位调整；
当所述预设相位调整规则包括基于所述预设相位方向和码片单位进行相位调整时，基于所述预设相位方向对所述同步参考信号的相位按照所述码片单位进行相位调整；
当所述预设相位调整规则包括基于所述预设相位方向、所述最小相位单位和所述码片单位进行相位调整时，基于所述预设相位方向，对所述同步参考信号的相位分别按照所述最小相位单位和所述码片单位交替进行相位调整。
需要说明的是，由于按照码片单位进行相位调整，每一次调整的程度是较小的，因此，终端基于该预设相位方向对该同步参考信号的相位按照该码片单位进行相位调整时，可以基于该码片单位进行多次的调整。
第二方面，提供了另一种相位调整方法，所述方法包括：
当接收到终端发送的接入消息时，基于所述接入消息中携带的用于调整相位的同步参 考信号，确定相关波形的峰均比，所述相关波形为所述接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算后得到的波形，所述峰均比为所述相关波形的最大峰值与幅度均值之间的比值，或者为所述相关波形中最大峰值对应的波峰的功率与功率均值之间的比值；
当所述峰均比小于预设阈值时，向所述终端发送检测失败消息，以使所述终端在接收到所述检测失败消息后，基于预设相位调整规则对所述同步参考信号进行相位调整，所述预设相位调整规则用于描述进行相位调整的方向和大小；
当所述峰均比大于或等于所述预设阈值时，基于所述相关波形中最大峰值对应的波峰，确定所述同步参考信号的相位调整信息，并将所述相位调整信息发送至所述终端，以使所述终端基于所述相位调整信息对所述同步参考信号进行相位调整。
需要说明的是，同步参考信号是终端基于同步正交码确定得到的，且该同步正交码可以为终端存储的码字集合中用于对用户数据进行处理的码字。通常情况下同步正交码具有良好的自相关特性以及互相关特性，因此，在本发明实施例中通过同步参考信号进行相位调整的操作，从而可以提高相位调整的准确度。
可选地，该基站可以在该峰均比小于该预设阈值时，向终端发送检测失败消息，也可以不做任何处理。
可选地，该基站可以将该相关波形与预设波形进行比较，并将该相关波形中最大峰值对应的波峰与预设波形中的预设参考点的位置进行比较；确定该最大峰值对应的波峰移动到预设参考点的移动方向以及移动距离；将该移动方向确定为该相位调整方向，将该移动距离确定为相位调整大小。
可选地，所述基于所述接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，包括：
对所述接入消息中携带的同步参考信号与所述本地存储的同步参考信号进行相关运算，得到所述相关波形；
对所述相关波形进行峰值检测；
确定所述相关波形中的最大峰值和所述相关波形的幅度均值；
将所述最大峰值除以所述幅度均值，得到所述相关波形的峰均比。
需要说明的是，基站可以对接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算，得到该相关波形，也可以对接入消息中携带的同步参考信号与本地存储的同步参考信号进行分解的相关运算，得到该相关波形。
可选地，所述基于所述接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，包括：
对所述接入消息中携带的同步参考信号与所述本地存储的同步参考信号进行相关运算，得到所述相关波形；
对所述相关波形进行峰值检测；
确定所述相关波形中最大峰值对应的波峰的功率和所述相关波形的功率均值；
将所述最大峰值对应的波峰的功率除以所述功率均值，得到所述相关波形的峰均比。
可选地，所述当接收到终端发送的接入消息时，基于所述接入消息中携带的用调整相位的同步参考信号，确定相关波形的峰均比之前，还包括：
向所述终端发送广播消息，所述广播消息中携带时隙指示信息，用于指示所述终端在所述时隙指示信息所指示的时隙上发送所述同步参考信号。
在一种可能的实现方式中，当基站与终端之间事先进行了相位的粗调时，该基站中可以存储有该终端的终端标识，因此，为了实现基站与终端之间相位的精调，该基站可以基于该终端标识，将该广播消息发送给终端标识对应的终端。
在另一种可能的实现方式中，当该基站需要与终端进行第一次的相位调整时，该基站中可能未存储终端标识，因此，该基站可以将广播消息发送给多个终端。
第三方面，提供了一种相位调整装置，所述相位调整装置具有实现上述第一方面中相位调整方法行为的功能。该相位调整装置包括至少一个模块，该至少一个模块用于实现上述第一方面所提供的相位调整方法。
第四方面，提供了另一种相位调整装置，所述相位调整装置具有实现上述第二方面中相位调整方法行为的功能。该相位调整装置包括至少一个模块，该至少一个模块用于实现上述第二方面所提供的相位调整方法。
第五方面，提供了一种终端，该终端包括：发射器、接收器、存储器和处理器，所述存储器、所述发送器和所述接收器分别与所述处理器连接，所述存储器存储有程序代码，所述处理器用于调用程序代码，执行上述第一方面所述的相位调整方法。
第六方面，提供了一种基站，该基站包括：发射器、接收器、存储器和处理器，所述存储器、所述发送器和所述接收器分别与所述处理器连接，所述存储器存储有程序代码，所述处理器用于调用程序代码，执行上述第二方面所述的相位调整方法。
第七方面，提供了一种计算机存储介质，用于储存为上述第五方面提供的终端所用的计算机软件指令，其包含用于执行上述第一方面所设计的程序。
第八方面，提供了一种计算机存储介质，用于储存为上述第六方面提供的基站所用的计算机软件指令，其包含用于执行上述第二方面所设计的程序。
本发明实施例提供的技术方案带来的有益效果是：在本发明实施例中，可以向基站发送携带同步参考信号的接入消息，并在指定时间段内接收到基站发送的检测失败信息，或者未在指定时间段内接收到检测失败消息或相位调整信息时，可以基于预设相位调整规则对同步做参考信号的相位进行调整。由于该同步正交码具有自相关特性以及互相关特性，因此，该同步参考信号同样具有自相关特性，且在传输该同步参考信号的过程中不会与其他数据发生干扰，从而可以较为容易的检测到该相关波形的最大峰值，也保证了该相位调整的准确性，进而使后续终端与基站之间进行数据通信时，保证了数据传输的码元相位同步，进一步地提高了数据传输的质量。
附图说明
图1A是本发明实施例提供的一种相位调整系统架构的结构示意图；
图1B是本发明实施例提供的一种基站的结构示意图；
图2是本发明实施例提供的一种相位调整方法流程图；
图3A是本发明实施例提供的第一种相位调整装置的结构示意图；
图3B是本发明实施例提供的一种发送模块的结构示意图；
图3C是本发明实施例提供的第二种相位调整装置的结构示意图；
图3D是本发明实施例提供的一种第二调整模块的结构示意图；
图4A是本发明实施例提供的第三种相位调整装置的结构示意图；
图4B是本发明实施例提供的一种第一确定模块的结构示意图；
图4C是本发明实施例提供的另一种第一确定模块的结构示意图；
图4D是本发明实施例提供的第四种相位调整装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
在对本发明实施例进行详细地解释说明之前，先对本发明实施例的系统架构予以介绍。图1A是根据一示例性实施例示出的一种相位调整系统架构的结构示意图，参见图1A，该系统包括基站1和终端2。其中，该基站1与该终端2之间可以进行通信。为了提高基站1与终端2在通信过程中的数据传输质量，通常会对终端2与基站1之间的码元相位进行调整。
具体地，基站1可以在接收到终端2发送的携带同步参考信号的接入消息时，基于该同步参考信号确定峰均比，并当该峰均比大于预设阈值时，确定终端2的相位调整信息，并将该相位调整信息发送给终端2。当终端2接收到该相位调整信息时，可以对同步参考信号的相位进行调整。当该终端未接收到基站发送的相位调整信息时，还可以基于预设相位调整规则对该同步参考信号进行相位调整。由于现有技术中，使用PN序列进行相位调整时，该PN序列在传输过程中，为了减少该PN序列与其他数据之间发生干扰的情况，通常会降低发送功率来发送该PN序列，但是，由于降低发送PN序列的发送功率，可能会导致终端在接收到基站发送的PN序列后，难以检测相关波形的最大峰值，从而降低了相位调整的准确性。而在本发明实施例中，通过同步参考信号进行相位调整时，由于该同步参考信号具有自相关特性以及互相关特性，从而可以较为容易的检测到该相关波形的最大峰值，同时，由于该预设相位规则是指按照预设方向进行最小相位单位或者码片单位的相位调整，从而在通过该预设相位调整规则进行相位调整时，提高了相位调整的准确性，进而提高了数据传输的质量。
需要说明的是，在实际实现过程中，该相位调整系统中可以仅包括一个终端2，也包括多个终端2，本发明实施例的附图中仅以三个终端2为例进行说明。
图1B是根据一示例性实施例示出的一种基站的结构示意图，该基站主要包括有一个或者一个以上处理核心的处理器110、包括有一个或一个以上计算机可读存储介质的存储器120、通信总线130、发射机140以及接收机150等，且该存储器120、发射机140和接收机150分别通过通信总线130与处理器110连接。本领域技术人员可以理解，图1B中示出的基站的结构并不构成对基站的限定，可以包括比图示更多或更少的部件，或者组合某些 部件，或者不同的部件布置，本发明实施例对此不做限定。
其中，该处理器110是该基站的控制中心，该处理器110可以一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本发明方案程序执行的集成电路。其中，该处理器110可以通过运行或执行存储在存储器120内的软件程序和/或模块，以及调用存储在存储器120内的数据，来实现下文图2实施例所提供的相位调整方法。
其中，该存储器120可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其它类型的静态存储设备，随机存取存储器(random access memory，RAM))或者可存储信息和指令的其它类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其它光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其它磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由集成电路存取的任何其它介质，但不限于此。存储器120可以是独立存在，通过通信总线130与处理器110相连接。存储器120也可以和处理器110集成在一起。
发射机140和接收机150，使用任何收发器一类的装置，用于与其它设备或通信网络通信，比如，无线局域网(Wireless Local Area Networks，WLAN)等。
另外，上述通信总线130可包括一通路，在上述处理器110、存储器120发射机140和接收机150之间传送信息。
图2是根据一示例性实施例示出的一种相位调整方法的流程图，参见图2，该方法包括如下步骤。
步骤201：基站向终端发送广播消息，该广播消息中携带时隙指示信息，用于指示终端在该时隙指示信息所指示的时隙上发送同步参考信号。
其中，基站可以将该广播消息发送给一个终端，也可以发送给多个终端。具体可以包括如下两种可能。
在一种可能的实现方式中，当基站与终端之间事先进行了相位的粗调时，该基站中可以存储有该终端的终端标识，因此，为了实现基站与终端之间相位的精调，该基站可以基于该终端标识，将该广播消息发送给终端标识对应的终端。
需要说明的是，终端标识用于唯一标识该终端，且该终端标识可以为该终端的MAC(Media Access Control，媒体访问控制)地址、出厂序列号等等。
在另一种可能的实现方式中，当该基站需要与终端进行第一次的相位调整时，该基站中可能未存储终端标识，因此，该基站可以将广播消息发送给多个终端。
需要说明的是，同步参考信号是终端基于同步正交码确定得到的，且该同步正交码可以为终端存储的码字集合中用于对用户数据进行处理的码字。通常情况下同步正交码是指在同步传输的情况下可以作为地址码，且具有良好的自相关特性以及互相关特性的码字或码字序列，因此，在本发明实施例中通过同步参考信号进行相位调整的操作，从而可以提高相位调整的准确度。其中，该同步正交码可以为Walsh(沃什)码等等。
另外，在本发明实施例中，基站发送的广播消息中可以携带时隙指示信息，当然，也 可以不携带该时隙指示信息。其中，为了便于后续对终端进行管理，通常情况下该基站发送的广播消息中可以携带有该时隙指示信息。
步骤202：当终端接收到基站发送的广播消息时，向基站发送接入消息，该接入消息携带用于调整相位的同步参考信号。
需要说明的是，该终端可以在接收到基站发送的广播消息时，向基站发送接入消息，也可以在未接收到该基站发送的广播消息时，发送该接入消息。且当终端接收到基站发送的广播消息时，该终端可以判断该广播消息中是否携带时隙指示信息；当该广播消息中携带该时隙指示信息时，在该时隙指示信息所指示的时隙上向该基站发送该接入消息。当然，该终端还可以在接收到基站发送的广播消息时，无论该广播消息中是否携带该时隙指示信息，都可以向该基站发送该接入消息。
其中，终端可以对接收到的广播消息进行解析，并对解析的内容进行识别，以判断该广播消息中是否携带时隙指示信息。且该终端对广播消息进行解析的操作，以及识别解析内容的操作均可以参考相关技术，本发明实施例对此不再进行一一赘述。
需要说明的是，在本发明实施例中，可以将未经过调制的同步正交码确定为同步参考信号，当然为了提高相位调整的准确度，也可以将该同步正交码与一个PN序列进行调制，将得到的调制结果确定为同步参考信号，并将该同步参考信号发送至基站，以使基站通过该同步参考信号获取相位调整信息。可选地，该同步参考信号还可以进一步调制接入消息，从而提高传输该同步参考信号的稳定性，进一步的提高了后续调整相位的准确度。
另外，在实际应用中，该终端在发送该同步参考信号的同时，还可以将该终端的其他信息一并发送给该基站，比如，可以发送该终端的地址信息、校验码等等。
进一步地，在本发明实施例中，由于当终端与基站之间的相位相差太大时，可能会导致终端与基站之间在进行数据传输时，同步误差过大，信噪比较小，从而造成基站无法对终端发送的信息进行解调，影响后续的操作，因此，终端在向基站发送接入消息之前，该终端还可以自行通过最小相位单位调整同步参考信号的相位，从而在后续基站接收到终端发送的接入消息时，可以准确的对该接入消息进行解调，保证了后续进行相位调整操作的可行性。
步骤203：当基站接收到终端发送的接入消息时，基于该接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，该相关波形为该接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算后得到的波形，该峰均比为该相关波形的最大峰值与幅度均值之间的比值，或者为该相关波形中最大峰值对应的波峰的功率与功率均值之间的比值。
在一种可能的实现方式中，当该峰均比为该相关波形的最大峰值与幅度均值之间的比值时，该基站基于该接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比的操作可以为：对该接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算，得到该相关波形；对该相关波形进行峰值检测；确定该相关波形中的最大峰值和该相关波形的幅度均值；将该最大峰值除以该幅度均值，得到该相关波形的峰均比。
在另一种可能的实现方式中，当该峰均比为该相关波形中最大峰值对应的波峰的功率与功率均值之间的比值，该基站基于该接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比的操作可以为：对该接入消息中携带的同步参考信号与该本地存储 的同步参考信号进行相关运算，得到该相关波形；对该相关波形进行峰值检测；确定该相关波形中最大峰值对应的波峰的功率和该相关波形的功率均值；将该最大峰值对应的波峰的功率除以该功率均值，得到该相关波形的峰均比。
需要说明的是，基站可以对接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算，得到该相关波形，也可以对接入消息中携带的同步参考信号与本地存储的同步参考信号进行分解的相关运算，得到该相关运算。且该终端对接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算或者分解的相关运算的操作可以参考相关技术，本发明实施例对此不再进行一一赘述。
另外，该基站可以检测相关波形的全部峰值，也可以仅仅检测相关波形的部分峰值，且该基站可以通过波峰检测器对该相关波形进行峰值检测，当然也可以通过其他方式进行峰值检测。
还需要说明的是，在本发明实施例中，该峰均比可以为该相关波形的最大峰值与幅度均值之间的比值，或者，为该相关波形中最大峰值对应的波峰的功率与功率均值之间的比值，在实际应用中，该峰均比还可以是相关波形的其他参数的比值。
步骤204：基站判断该峰均比是否小于该预设阈值，并当该峰均比小于该预设阈值时，执行下述步骤205的操作；当该峰均比大于或等于该预设阈值时，执行下述步骤206的操作。
步骤205：当该峰均比小于该预设阈值时，基站向终端发送检测失败消息。
需要说明的是，该预设阈值可以事先设置，比如，该预设阈值可以为1、2、3等等。
另外，该基站可以在该峰均比小于该预设阈值时，向终端发送检测失败消息，也可以不做任何处理。
步骤206：当该峰均比大于或等于预设阈值时，基站基于该相关波形中最大峰值对应的波峰，确定该同步参考信号的相位调整信息，该相位调整信息包括相位调整方向和相位调整大小，并将该相位调整信息发送给该终端。
具体地，该基站可以将该相关波形与预设波形进行比较，并将该相关波形中最大峰值对应的波峰与预设波形中的预设参考点的位置进行比较；确定该最大峰值对应的波峰移动到预设参考点的移动方向以及移动距离；将该移动方向确定为该相位调整方向，将该移动距离确定为相位调整大小，并将该相位调整信息发送给该终端。
其中，由于该基站可以将该广播消息发送给一个终端，也可以将该广播消息发送给多个终端，同时，该多个终端中的任一个终端在发送同步参考信号时，可以将该终端的地址信息发送至基站，因此，为了基站在确定该相位调整信息后，可以将该相位调整信息准确的发送至对应的终端中，该基站可以基于该终端发送的地址信息，将该相位调整信息发送至对应的终端。
步骤207：终端判断是否在指定时间段内接收到该基站发送的相位调整信息或检测失败信息，该指定时间段为发送该接入消息之后且与发送该接入消息的时间相距指定时长的时间段。
其中，由于当峰均比小于预设阈值时，该基站可以向终端发送检测失败消息，也可以不发送任何消息，当基站不发送任何消息给终端时，终端可能会一直处于等待消息状态，浪费了终端的运行资源，给终端的运行带来负担。因此，为了节省终端的运行资源，减轻 终端的运行负担，该终端还可以判断是否在指定时间段内接收到基站发送的相位调整信息或检测失败消息，该指定时间段为发送该接入消息之后且与发送该接入消息的时间相距指定时长的时间段。
需要说明的是，该指定时长可以事先设置，比如，该指定时长可以为1分钟、2分钟、3分钟等等。
步骤208：当终端在该指定时间段内接收到该基站发送的检测失败信息，或者未在该指定时间段内接收到该基站发送的相位调整信息时，基于预设相位调整规则对该同步参考信号进行相位调整，该预设相位调整规则用于描述进行相位调整的方向和大小。
其中，终端基于预设相位调整规则对该同步参考信号进行相位调整的操作可以包括下述三种情况。
第一种情况，当该预设相位调整规则包括基于预设相位方向和最小相位单位进行相位调整时，终端基于该预设相位方向对该同步参考信号的相位按照该最小相位单位进行相位调整。
其中，由上述步骤可知，该基站与终端在执行上述步骤之前，可能已经进行了相位的粗调，此时，该终端只需基于该预设相位方向对该同步参考信号的相位按照该最小相位单位进行一次或多次调整，即可实现相位的精调。
需要说明的是，由于通常情况下在调整相位之前，终端与基站之间的时钟已经同步，因此，为了使相位调整的更加准确，终端可以通过调整时钟的相位来获取最小相位单位，以对该同步参考信号的相位进行调整。当然，该终端不仅可以通过调整时钟的相位的方式获取该最小相位单位，还可以通过其他方式获取。其中，终端调整时钟发送边沿信号的时机即为调整时钟的相位，且终端可以通过锁相环调整该时钟的相位，当然在实际应用中也可以通过其他方式进行调整。另外，该终端通过锁相环等方式调整时钟的相位的操作可以参考相关技术，本发明实施例对此不再进行一一赘述。
另外，该基站与终端在执行上述步骤之前，可能未进行过相位的调整，此时为了提高相位调整的准确度，可以重复执行基于该预设相位方向对该同步参考信号的相位按照该最小相位单位进行相位调整的操作。
第二种情况，当该预设相位调整规则包括基于该预设相位方向和码片单位进行相位调整时，终端基于该预设相位方向对该同步参考信号的相位按照该码片单位进行相位调整。
需要说明的是，当终端通过该码片单位对该相位进行调整时，可以按照小数倍的码片单位对相位进行调整，也可以按照整数倍的码片单位对该相位进行调整。其中，由于按照码片单位进行相位调整，每一次调整的程度是较小的，因此，终端基于该预设相位方向对该同步参考信号的相位按照该码片单位进行相位调整时，需要基于该码片单位进行多次的调整。
第三种情况，当该预设相位调整规则包括基于该预设相位方向、该最小相位单位和该码片单位进行相位调整时，基于该预设相位方向，对该同步参考信号的相位分别按照该最小相位单位和该码片单位交替进行相位调整。
其中，由于每个码字包括多个码片，因此，为了提高相位调整的速度及准确度，终端可以基于该预设相位方向，对该同步参考信号的相位分别按照该最小相位单位和该码片单位进行多次交替完成相位调整。且当终端通过该码片单位对该相位进行调整时，可以按照 小数倍的码片单位对相位进行调整，也可以按照整数倍的码片单位对该相位进行调整。
需要说明的是，该多次交替进行相位调整的方式可以是最小相位的单位与码片单位轮流交替进行相位调整，也可以是进行多次最小相位单位的相位调整后，再进行多次码片单位的相位调整。
另外，当终端接收到基站发送的相位调整信息时，可以基于该相位调整方向和相位调整大小，对该同步参考信号的相位进行调整。
比如，当该相位调整方向为右方向，相位调整大小为3个码片单位时，终端可以将该同步参考信号的波形向右方向调整3个码片单位。
进一步地，由于终端发送给基站的同步参考信号可以是未通过调制的同步正交码，导致该同步参考信号的自相关的峰均比不够高，因此，为了更进一步的提高相位调整准确度，可以将该同步正交码继续与PN序列进行调制，得到自相关特性较强的同步参考信号，之后重复执行上述步骤201至步骤208的操作，从而提高相位调整的准确度，实现对相位调整的精调。
在本发明实施例中，终端可以在接收到携带时隙指示信息的广播消息时，将同步参考信号发送至基站。基站在接收到该携带同步参考信号的接入消息时，可以对该接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算，得到相关波形。之后对该相关波形进行峰值检测，并在该相关波形的峰均比小于预设阈值时，该基站可以将该检测失败消息发送至该终端或者不发送任何消息。当终端未在指定时间段内接收到基站发送任何消息，或者接收到了基站发送的检测失败消息时，可以通过预设相位调整规则进行相位调整。由于该同步正交码具有自相关特性以及互相关特性，因此，该同步参考信号同样具有自相关特性以及互相关特性，且在传输该同步参考信号的过程中不会与其他数据发生干扰，从而使基站或者终端都较为容易的检测到该相关波形的最大峰值。另外，由于该预设相位规则是指对同步参考信号的相位按照预设方向进行最小相位单位或者码片单位的调整，从而在通过该预设相位调整规则进行相位调整时，可以提高相位调整的准确性，进而使后续终端与基站之间进行数据通信时，数据传输的码元相位是同步的，进一步地提高了数据传输的质量。
图3A是本发明实施例提供的一种相位调整装置的结构示意图，参见图3A，该装置包括：发送模块301、判断模块302和第一调整模块303。
发送模块301，用于向基站发送接入消息，该接入消息携带用于调整相位的同步参考信号，该同步参考信号为基于同步正交码确定得到；
判断模块302，用于判断是否在指定时间段内接收到该基站发送的相位调整信息或检测失败信息，该指定时间段为发送该接入消息之后且与发送该接入消息的时间相距指定时长的时间段，该相位调整信息或该检测失败信息均为该基站基于该同步参考信号确定得到，该相位调整信息包括相位调整方向和相位调整大小；
第一调整模块303，由于当在该指定时间段内接收到该基站发送的检测失败信息，或者未在该指定时间段内接收到该基站发送的相位调整信息或检测失败信息时，基于预设相位调整规则对该同步参考信号进行相位调整，该预设相位调整规则用于描述进行相位调整的方向和大小
可选地，参见图3B，该发送模块301包括：
判断子模块3011，用于当接收到该基站发送的广播消息时，判断该广播消息中是否携带时隙指示信息；
发送子模块3012，用于当该广播消息中携带该时隙指示信息时，在该时隙指示信息所指示的时隙上向该基站发送该接入消息。
可选地，参见图3C，该装置还包括：
第二调整模块304，用于当接收到该基站发送的相位调整信息时，基于该相位调整方向和该相位调整大小，对该同步参考信号的相位进行调整。
可选地，参见图3D，该第二调整模块304包括：
第一调整子模块3041，用于当该预设相位调整规则包括基于预设相位方向和最小相位单位进行相位调整时，基于该预设相位方向对该同步参考信号的相位按照该最小相位单位进行相位调整；
第二调整子模块3042，用于当该预设相位调整规则包括基于该预设相位方向和码片单位进行相位调整时，基于该预设相位方向对该同步参考信号的相位按照该码片单位进行相位调整；
第三调整子模块3043，用于当该预设相位调整规则包括基于该预设相位方向、该最小相位单位和该码片单位进行相位调整时，基于该预设相位方向，对该同步参考信号的相位分别按照该最小相位单位和该码片单位交替进行相位调整。
在本发明实施例中，终端可以在接收到携带时隙指示信息的广播消息时，将同步参考信号发送至基站。基站在接收到该携带同步参考信号的接入消息时，可以对该接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算，得到相关波形。之后对该相关波形进行峰值检测，并在该相关波形的峰均比小于预设阈值时，该基站可以将该检测失败消息发送至该终端或者不发送任何消息。当终端未在指定时间段内接收到基站发送任何消息，或者接收到了基站发送的检测失败消息时，可以通过预设相位调整规则进行相位调整。由于该同步正交码具有自相关特性以及互相关特性，因此，该同步参考信号同样具有自相关特性以及互相关特性，且在传输该同步参考信号的过程中不会与其他数据发生干扰，从而使基站或者终端都较为容易的检测到该相关波形的最大峰值。另外，由于该预设相位规则是指对同步参考信号的相位按照预设方向进行最小相位单位或者码片单位的调整，从而在通过该预设相位调整规则进行相位调整时，可以提高相位调整的准确性，进而使后续终端与基站之间进行数据通信时，数据传输的码元相位是同步的，进一步地提高了数据传输的质量。
图4A是根据一示例性实施例提供的一种相位调整装置，参见图4A，该装置包括：第一确定模块401、第一发送模块402和第二确定模块403。
第一确定模块401，用于当接收到终端发送的接入消息时，基于该接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，该相关波形为该接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算后得到的波形，该峰均比为该相关波形的最大峰值与幅度均值之间的比值，或者为该相关波形中最大峰值对应的波峰的功率与功率均值之间的比值；
第一发送模块402，用于用于当该峰均比小于预设阈值时，向该终端发送检测失败消息，以使该终端在接收到该检测失败消息后，基于预设相位调整规则对该同步参考信号进行相位调整，该预设相位调整规则用于描述进行相位调整的方向和大小；
第二确定模块403，用于当该峰均比大于或等于该预设阈值时，基于该相关波形中最大峰值对应的波峰，确定该同步参考信号的相位调整信息，并将该相位调整信息发送至该终端，以使该终端基于该相位调整信息对该同步参考信号进行相位调整。
可选地，参见图4B，该第一确定模块401包括：
第一计算子模块4011，用于对该接入消息中携带的同步参考信号与该本地存储的同步参考信号进行相关运算，得到该相关波形；
第一检测子模块4012，用于对该相关波形进行峰值检测；
第一确定子模块4013，用于确定该相关波形中的最大峰值和该相关波形的幅度均值；
第二计算子模块4014，用于将该最大峰值除以该幅度均值，得到该相关波形的峰均比。
可选地，参见图4C，该第一确定模块401包括：
第三计算子模块4015，用于对该接入消息中携带的同步参考信号与该本地存储的同步参考信号进行相关运算，得到该相关波形；
第二检测子模块4016，用于对该相关波形进行峰值检测；
第二确定子模块4017，用于确定该相关波形中最大峰值对应的波峰的功率和该相关波形的功率均值；
第四计算子模块4018，用于将该最大峰值对应的波峰的功率除以该功率均值，得到该相关波形的峰均比。
可选地，参见图4D，该装置还包括：
第二发送模块404，用于向该终端发送广播消息，该广播消息中携带时隙指示信息，用于指示该终端在该时隙指示信息所指示的时隙上发送该同步参考信号。
综上所述，在本发明实施例中，终端可以在接收到携带时隙指示信息的广播消息时，将同步参考信号发送至基站。基站在接收到该携带同步参考信号的接入消息时，可以对该接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算，得到相关波形。之后对该相关波形进行峰值检测，并在该相关波形的峰均比小于预设阈值时，该基站可以将该检测失败消息发送至该终端或者不发送任何消息。当终端未在指定时间段内接收到基站发送任何消息，或者接收到了基站发送的检测失败消息时，可以通过预设相位调整规则进行相位调整。由于该同步正交码具有自相关特性以及互相关特性，因此，该同步参考信号同样具有自相关特性以及互相关特性，且在传输该同步参考信号的过程中不会与其他数据发生干扰，从而使基站或者终端都较为容易的检测到该相关波形的最大峰值。另外，由于该预设相位规则是指对同步参考信号的相位按照预设方向进行最小相位单位或者码片单位的调整，从而在通过该预设相位调整规则进行相位调整时，可以提高相位调整的准确性，进而使后续终端与基站之间进行数据通信时，数据传输的码元相位是同步的，进一步地提高了数据传输的质量。
需要说明的是：上述实施例提供的相位调整装置在相位调整时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完 成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的相位调整装置与相位调整方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (16)

  1. 一种相位调整方法，其特征在于，所述方法包括：
    向基站发送接入消息，所述接入消息携带用于调整相位的同步参考信号，所述同步参考信号为基于同步正交码确定得到；
    判断是否在指定时间段内接收到所述基站发送的相位调整信息或检测失败信息，所述指定时间段为发送所述接入消息之后且与发送所述接入消息的时间相距指定时长的时间段，所述相位调整信息或所述检测失败信息均为所述基站基于所述同步参考信号确定得到，所述相位调整信息包括相位调整方向和相位调整大小；
    当在所述指定时间段内接收到所述基站发送的检测失败信息，或者未在所述指定时间段内接收到所述基站发送的相位调整信息或检测失败信息时，基于预设相位调整规则对所述同步参考信号进行相位调整，所述预设相位调整规则用于描述进行相位调整的方向和大小。
  2. 根据权利要求1所述的方法，其特征在于，所述向基站发送接入消息，包括：
    当接收到所述基站发送的广播消息时，判断所述广播消息中是否携带时隙指示信息；
    当所述广播消息中携带所述时隙指示信息时，在所述时隙指示信息所指示的时隙上向所述基站发送所述接入消息。
  3. 根据权利要求1所述的方法，其特征在于，所述向基站发送接入消息之后，还包括：
    当接收到所述基站发送的相位调整信息时，基于所述相位调整方向和所述相位调整大小，对所述同步参考信号的相位进行调整。
  4. 根据权利要求1所述的方法，其特征在于，所述基于预设相位调整规则对所述同步参考信号进行相位调整，包括：
    当所述预设相位调整规则包括基于预设相位方向和最小相位单位进行相位调整时，基于所述预设相位方向对所述同步参考信号的相位按照所述最小相位单位进行相位调整；
    当所述预设相位调整规则包括基于所述预设相位方向和码片单位进行相位调整时，基于所述预设相位方向对所述同步参考信号的相位按照所述码片单位进行相位调整；
    当所述预设相位调整规则包括基于所述预设相位方向、所述最小相位单位和所述码片单位进行相位调整时，基于所述预设相位方向，对所述同步参考信号的相位分别按照所述最小相位单位和所述码片单位交替进行相位调整。
  5. 一种相位调整方法，其特征在于，所述方法包括：
    当接收到终端发送的接入消息时，基于所述接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，所述相关波形为所述接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算后得到的波形，所述峰均比为所述相关波形的最大峰值与幅度均值之间的比值，或者为所述相关波形中最大峰值对应的波峰的功率与功率均值之间的比值；
    当所述峰均比小于预设阈值时，向所述终端发送检测失败消息，以使所述终端在接收到 所述检测失败消息后，基于预设相位调整规则对所述同步参考信号进行相位调整，所述预设相位调整规则用于描述进行相位调整的方向和大小；
    当所述峰均比大于或等于所述预设阈值时，基于所述相关波形中最大峰值对应的波峰，确定所述同步参考信号的相位调整信息，并将所述相位调整信息发送至所述终端，以使所述终端基于所述相位调整信息对所述同步参考信号进行相位调整。
  6. 根据权利要求5所述的方法，其特征在于，所述基于所述接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，包括：
    对所述接入消息中携带的同步参考信号与所述本地存储的同步参考信号进行相关运算，得到所述相关波形；
    对所述相关波形进行峰值检测；
    确定所述相关波形中的最大峰值和所述相关波形的幅度均值；
    将所述最大峰值除以所述幅度均值，得到所述相关波形的峰均比。
  7. 根据权利要求5所述的方法，其特征在于，所述基于所述接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，包括：
    对所述接入消息中携带的同步参考信号与所述本地存储的同步参考信号进行相关运算，得到所述相关波形；
    对所述相关波形进行峰值检测；
    确定所述相关波形中最大峰值对应的波峰的功率和所述相关波形的功率均值；
    将所述最大峰值对应的波峰的功率除以所述功率均值，得到所述相关波形的峰均比。
  8. 根据权利要求5所述的方法，其特征在于，所述当接收到终端发送的接入消息时，基于所述接入消息中携带的用调整相位的同步参考信号，确定相关波形的峰均比之前，还包括：
    向所述终端发送广播消息，所述广播消息中携带时隙指示信息，用于指示所述终端在所述时隙指示信息所指示的时隙上发送所述同步参考信号。
  9. 一种相位调整装置，其特征在于，所述装置包括：
    发送模块，用于向基站发送接入消息，所述接入消息携带用于调整相位的同步参考信号，所述同步参考信号为基于同步正交码确定得到；
    判断模块，用于判断是否在指定时间段内接收到所述基站发送的相位调整信息或检测失败信息，所述指定时间段为发送所述接入消息之后且与发送所述接入消息的时间相距指定时长的时间段，所述相位调整信息或所述检测失败信息均为所述基站基于所述同步参考信号确定得到，所述相位调整信息包括相位调整方向和相位调整大小；
    第一调整模块，由于当在所述指定时间段内接收到所述基站发送的检测失败信息，或者未在所述指定时间段内接收到所述基站发送的相位调整信息或检测失败信息时，基于预设相位调整规则对所述同步参考信号进行相位调整，所述预设相位调整规则用于描述进行相位调整的方向和大小。
  10. 根据权利要求9所述的装置，其特征在于，所述发送模块包括：
    判断子模块，用于当接收到所述基站发送的广播消息时，判断所述广播消息中是否携带时隙指示信息；
    发送子模块，用于当所述广播消息中携带所述时隙指示信息时，在所述时隙指示信息所指示的时隙上向所述基站发送所述接入消息。
  11. 根据权利要求9所述的装置，其特征在于，所述装置还包括：
    第二调整模块，用于当接收到所述基站发送的相位调整信息时，基于所述相位调整方向和所述相位调整大小，对所述同步参考信号的相位进行调整。
  12. 根据权利要求9所述的装置，其特征在于，所述第二调整模块包括：
    第一调整子模块，用于当所述预设相位调整规则包括基于预设相位方向和最小相位单位进行相位调整时，基于所述预设相位方向对所述同步参考信号的相位按照所述最小相位单位进行相位调整；
    第二调整子模块，用于当所述预设相位调整规则包括基于所述预设相位方向和码片单位进行相位调整时，基于所述预设相位方向对所述同步参考信号的相位按照所述码片单位进行相位调整；
    第三调整子模块，用于当所述预设相位调整规则包括基于所述预设相位方向、所述最小相位单位和所述码片单位进行相位调整时，基于所述预设相位方向，对所述同步参考信号的相位分别按照所述最小相位单位和所述码片单位交替进行相位调整。
  13. 一种相位调整装置，其特征在于，所述装置包括：
    第一确定模块，用于当接收到终端发送的接入消息时，基于所述接入消息中携带的用于调整相位的同步参考信号，确定相关波形的峰均比，所述相关波形为所述接入消息中携带的同步参考信号与本地存储的同步参考信号进行相关运算后得到的波形，所述峰均比为所述相关波形的最大峰值与幅度均值之间的比值，或者为所述相关波形中最大峰值对应的波峰的功率与功率均值之间的比值；
    第一发送模块，用于当所述峰均比小于预设阈值时，向所述终端发送检测失败消息，以使所述终端在接收到所述检测失败消息后，基于预设相位调整规则对所述同步参考信号进行相位调整，所述预设相位调整规则用于描述进行相位调整的方向和大小；
    第二确定模块，用于当所述峰均比大于或等于所述预设阈值时，基于所述相关波形中最大峰值对应的波峰，确定所述同步参考信号的相位调整信息，并将所述相位调整信息发送至所述终端，以使所述终端基于所述相位调整信息对所述同步参考信号进行相位调整。
  14. 根据权利要求13所述的装置，其特征在于，所述第一确定模块包括：
    第一计算子模块，用于对所述接入消息中携带的同步参考信号与所述本地存储的同同步参考信号进行相关运算，得到所述相关波形；
    第一检测子模块，用于对所述相关波形进行峰值检测；
    第一确定子模块，用于确定所述相关波形中的最大峰值和所述相关波形的幅度均值；
    第二计算子模块，用于将所述最大峰值除以所述幅度均值，得到所述相关波形的峰均比。
  15. 根据权利要求13所述的装置，其特征在于，所述第一确定模块包括：
    第三计算子模块，用于对所述接入消息中携带的同步参考信号与所述本地存储的同步参考信号进行相关运算，得到所述相关波形；
    第二检测子模块，用于对所述相关波形进行峰值检测；
    第二确定子模块，用于确定所述相关波形中最大峰值对应的波峰的功率和所述相关波形的功率均值；
    第四计算子模块，用于将所述最大峰值对应的波峰的功率除以所述功率均值，得到所述相关波形的峰均比。
  16. 根据权利要求13所述的装置，其特征在于，所述装置还包括：
    第二发送模块，用于向所述终端发送广播消息，所述广播消息中携带时隙指示信息，用于指示所述终端在所述时隙指示信息所指示的时隙上发送所述同步参考信号。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0776099A2 (en) * 1995-11-21 1997-05-28 AT&T Corp. Code division multiple access mobile radio system
CN1175140A (zh) * 1996-07-09 1998-03-04 株式会社日立制作所 Cdma通信系统和方法
CN1881857A (zh) * 1997-02-28 2006-12-20 交互数字技术公司 用于扩展频谱码分多址通信的正交码同步系统和方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0776099A2 (en) * 1995-11-21 1997-05-28 AT&T Corp. Code division multiple access mobile radio system
CN1175140A (zh) * 1996-07-09 1998-03-04 株式会社日立制作所 Cdma通信系统和方法
CN1881857A (zh) * 1997-02-28 2006-12-20 交互数字技术公司 用于扩展频谱码分多址通信的正交码同步系统和方法

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