WO2012119426A1 - Method, device and apparatus for obtaining frequency discrimination result of auto frequency control - Google Patents

Method, device and apparatus for obtaining frequency discrimination result of auto frequency control Download PDF

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Publication number
WO2012119426A1
WO2012119426A1 PCT/CN2011/079094 CN2011079094W WO2012119426A1 WO 2012119426 A1 WO2012119426 A1 WO 2012119426A1 CN 2011079094 W CN2011079094 W CN 2011079094W WO 2012119426 A1 WO2012119426 A1 WO 2012119426A1
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WO
WIPO (PCT)
Prior art keywords
frequency
result
user equipment
discriminating
frequency control
Prior art date
Application number
PCT/CN2011/079094
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French (fr)
Chinese (zh)
Inventor
王军
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/079094 priority Critical patent/WO2012119426A1/en
Priority to CN2011800015285A priority patent/CN102369763B/en
Publication of WO2012119426A1 publication Critical patent/WO2012119426A1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, device, and device for acquiring frequency discrimination results of automatic frequency control. Background technique
  • High Speed Packet Access (HSPA) system is an upgrade of Wideband Code Division Multiple Access (WCDMA) system, compared to a dedicated physical channel in a WCDMA system (Dedicate Physical Channel; The following is abbreviated as DPCH.
  • WCDMA Wideband Code Division Multiple Access
  • DPCH Dedicate Physical Channel
  • the main purpose is to increase the High Speed-Physical Downlink Shared Channel (HS-PDSCH) to support high-speed services.
  • the HSPA system has two dedicated channels, one DPCH, and one is the HS-PDSCH.
  • the DPCH supports the soft handover technology.
  • the user equipment (User Equipment; hereinafter referred to as the UE) and the multiple cells on the network side maintain communication at the same time, and the communication content with each cell is the same.
  • the UE typically performs a combining process on the received data of the plurality of cells to obtain a gain.
  • the following frequency discrimination mode is adopted to support the above soft handover: the automatic frequency control (Auto Frequency Control; hereinafter referred to as AFC) device on the UE side combines the frequency discrimination results obtained by the frequency discrimination module as the frequency discrimination result of the AFC device.
  • the frequency discrimination modules in the AFC device respectively correspond to cells in which the UE can receive data. Each frequency discrimination module corresponds to a cell of one UE.
  • the frequency discriminating module corresponding to each cell in the AFC device is specifically configured to obtain a frequency offset of a frequency of the data received by the UE relative to a frequency of the data sent by the cell, where the frequency offset includes a local oscillator frequency of the UE and a base station where the cell is located. Poor and Doppler shift.
  • the Doppler frequency offset is generated by the relative motion of the UE and the antenna of the cell. At this time, there is a deviation between the frequency at which the UE receives data and the frequency at which the cell transmits data. And the faster the relative motion speed of the UE, the larger the Doppler frequency offset.
  • the relative speed is positive (such as when the UE is close to the cell), and the Doppler frequency offset is also positive.
  • the Doppler frequency offset is negative when the relative speed is negative (for example, when the UE is away from the cell).
  • the inventors have found that at least the following problems exist in the prior art:
  • the UE side does not consider the moving speed of the UE, but directly discriminates all the cells in the AFC. The result is merged.
  • the Doppler frequency offset will seriously affect the reception of the HS-PDSCH in the HSPA system, thereby affecting the performance of the HSPA system, resulting in low communication stability and low data transmission performance.
  • the embodiment of the invention provides a method, a device and a device for acquiring a frequency-detection result of an automatic frequency control, which are used to solve the problem that the moving speed of the UE is not considered in the soft handover process of the HSPA system in the prior art, and the communication stability of the HSPA system is low. , the defect of low data transmission performance.
  • An embodiment of the present invention provides a method for obtaining a frequency identification result of an automatic frequency control, including: acquiring, from a plurality of frequency discriminating modules, a frequency discriminating result of a plurality of cells corresponding to the user equipment; Receiving a cell corresponding to the data, where the plurality of cells include a serving cell of the user equipment;
  • An embodiment of the present invention provides an apparatus for acquiring a frequency-determined result of an automatic frequency control, including: a first acquiring module, configured to acquire, from a plurality of frequency-detecting modules, a frequency-collecting result of multiple cells corresponding to the user equipment;
  • the cell is a cell corresponding to the user equipment, and the plurality of cells include a serving cell of the user equipment;
  • a second obtaining module configured to acquire a frequency discriminating result of the automatic frequency control according to a size relationship between the moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the multiple cells.
  • the embodiment of the invention further provides an automatic frequency control device, which comprises a plurality of frequency discriminating modules, an automatic frequency control frequency discriminating result obtaining device, a loop filter, a processing module and a voltage controlled crystal oscillator;
  • the plurality of frequency discriminating modules are configured to obtain a frequency discriminating result of the multiple cells corresponding to the user equipment; the multiple cells are the cells that the user equipment can receive the data; the multiple cells include the a serving cell of the user equipment;
  • the frequency-frequency result obtaining device of the automatic frequency control is configured to determine, according to the frequency discriminating result of the plurality of cells acquired by the plurality of frequency discriminating modules, a relationship between a moving speed of the user equipment and a preset threshold Obtaining the frequency identification result of the automatic frequency control;
  • the loop filter is configured to filter the frequency identification result of the automatic frequency control acquired by the frequency-determining result obtaining device of the automatic frequency control;
  • the processing module is configured to acquire a voltage value according to the frequency discriminating result of the automatic frequency control filtered by the loop filter;
  • the voltage controlled crystal oscillator is configured to generate a corresponding frequency oscillation signal according to the voltage value obtained by the processing module, where the frequency oscillation signal is used as a clock source for the user equipment to work normally.
  • the frequency identification result of the multiple cells corresponding to the user equipment is obtained by using multiple frequency discrimination modules; the multiple cells are the user equipment Receiving a cell corresponding to the data, where the plurality of cells include a serving cell of the user equipment; and automatically acquiring, according to a size relationship between a moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the multiple cells.
  • Frequency control results of frequency control is not considered in the prior art, resulting in low communication stability and low data transmission performance.
  • the moving speed of the user equipment is taken into consideration in the soft handover process, and the frequency identification result of the automatic frequency control can be accurately obtained according to the relationship between the moving speed of the user equipment and the preset threshold.
  • FIG. 1 is a schematic structural view of a prior art AFC device
  • FIG. 2 is a flow chart of a method for acquiring a frequency discrimination result of automatic frequency control according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for acquiring a frequency discrimination result of automatic frequency control according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus for acquiring frequency discriminating results of automatic frequency control according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an apparatus for acquiring frequency discriminating results of automatic frequency control according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an automatic frequency control device according to an embodiment of the present invention. detailed description
  • the DPCH channel supports the soft handover technology, and the UE can simultaneously maintain communication through the DPCH and multiple cells on the network side, and the communication content is the same as that of each cell.
  • the UE can discriminate each cell of the soft handover, and then combine the frequency discrimination results as a final frequency discrimination result.
  • the frequency discrimination is used to support the soft handover.
  • the DPCH In the HSPA system, when the HS-PDSCH is used, the DPCH also exists. At this time, the DPCH is mainly used to transmit signaling and work. Rate control command.
  • the method of combining the above-mentioned frequency discrimination results also has a gain, but when the mobile speed of the UE is high, since the HS-PDSCH used in the HSPA system does not support the soft handover technology, the UE only needs the same time. Communicate with a cell (ie, the current serving cell).
  • a cell ie, the current serving cell.
  • the Doppler frequency offset caused by the high-speed mobile of the UE will result in a larger frequency offset between the UE and the serving cell, and since the HS-PDSCH only tracks the serving cell, the above-mentioned method of combining the frequency discrimination results is adopted. It will not bring any gain to the system, but will seriously affect the performance of HS-PDSCH communication, resulting in low communication stability and low data transmission performance. This problem can be solved by the following technical solution of the embodiment of the present invention.
  • the prior art AFC device may include multiple frequency discriminating modules 1, a merging module 2, a loop filter 3, a processing module 4, and a voltage-controlled crystal oscillator (hereinafter referred to as VCXO). ) 5.
  • VCXO voltage-controlled crystal oscillator
  • each frequency discrimination module 1 corresponds to one cell.
  • the plurality of frequency discriminating modules 1 respectively correspond to a plurality of cells in which the UE can receive data.
  • Each frequency discriminating module 1 is configured to obtain a frequency deviation of a frequency of a corresponding cell transmission data and a preset receiving frequency as a frequency discrimination result.
  • the merging module 2 is connected to the plurality of frequency discriminating modules 1 respectively, and the merging module 2 is used to combine the frequency discriminating results obtained by the plurality of frequency discriminating modules 1 as the frequency discriminating result of the AFC.
  • the loop filter 3 is connected to the merging module 2, and the loop filter 3 is used for filtering the frequency discrimination result of the AFC processed by the merging module 2.
  • the processing module 4 is connected to the loop filter 3, and the processing module 4 is configured to acquire a voltage value according to the frequency discrimination result of the AFC filtered by the loop filter 3. For example, the processing module 4 may first add the frequency deviation of the frequency discrimination result of the filtered AFC to the current frequency pre-stored in the processing module 4 to obtain the adjusted frequency.
  • the pre-stored current frequency is the last adjusted frequency.
  • the processing module 4 is further configured to map the adjusted frequency to a voltage value.
  • the VCX05 is connected to the processing module 4, and the VCX05 is configured to generate a corresponding frequency oscillation signal according to the voltage value obtained by the processing module 4.
  • the frequency oscillation signal serves as a clock source for the UE to work normally.
  • the moving speed of the UE is not considered, and the frequency discriminating results of the plurality of cells corresponding to the UE are directly combined.
  • the Doppler frequency offset for example, the UE moves linearly between the two cells A and B, and the UE is at the cell A at this time.
  • the Doppler frequency offset frequency discrimination result is 700 Hz
  • the Doppler frequency offset frequency difference result of the UE relative to the cell B is -700 Hz.
  • the result of the combination is that the frequency discrimination result of the AFC is 0, thereby causing the VCXO to not perform adjustment, resulting in data transmission. Low performance and low soft switching efficiency.
  • FIG. 2 is a flowchart of a method for acquiring a frequency discrimination result of an AFC according to an embodiment of the present invention.
  • the execution body of the method for obtaining the frequency discrimination result of the AFC of the present embodiment is an AFC frequency discrimination result acquisition device.
  • the frequency discrimination result obtaining means of the AFC may be located in the AFC device on the UE side.
  • the method for obtaining the frequency identification result of the AFC in this embodiment may include the following steps: 100.
  • the UE can receive the cell corresponding to the data, where the plurality of cells include the serving cell of the UE and the non-serving cell of the UE, that is, the neighboring cell of the UE.
  • the plurality of frequency discriminating modules in the embodiment are in one-to-one correspondence with the plurality of cells. Each frequency discriminating module can acquire the frequency deviation of the frequency of the transmission data of one cell and the preset reception frequency, that is, the frequency discrimination result.
  • the method for obtaining the frequency identification result of the AFC in this embodiment is obtained by using multiple frequency discriminating modules.
  • the moving speed of the UE is not considered in the prior art, resulting in low communication stability and low data transmission performance.
  • the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, which can effectively improve the communication stability of the HSPA system. Sex and data transmission performance; thus it can also be greatly changed Good UE experience.
  • the method further includes: determining a size relationship between a moving speed of the UE and a preset threshold.
  • the speed of the UE can be detected by setting a speed detector in the UE.
  • FIG. 3 is a flowchart of a method for obtaining a frequency discrimination result of an AFC according to another embodiment of the present invention.
  • the embodiment shown in FIG. 3 further explains the technical solution of the embodiment of the present invention in detail based on the embodiment shown in FIG. 2 above.
  • the method for obtaining the frequency identification result of the AFC in this embodiment may specifically include the following:
  • 200 and 201 can be in no order.
  • the frequency identification result of the serving cell is used as a frequency discriminating result of the AFC.
  • the 205 is located after 204.
  • the 205 may also be located after 203.
  • the frequency discriminating result of the multiple cells is combined as the frequency discriminating result of the AFC according to 203. At this time, it is equivalent to obtaining the gain by combining, reducing the probability of the UE dropping the network, improving the data transmission performance and the network. Stability.
  • the moving speed of the UE is less than the preset threshold, the noise impact of the cell other than the serving cell in the multiple cells on the serving cell is smaller than that obtained by the merge mode, so the frequency discriminating result of the multiple cells can be obtained. Merged as a result of the AFC's frequency discrimination.
  • the frequency discriminating result of the serving cell is obtained from the frequency discriminating result of the multiple cells as described in 202. Since the moving speed of the UE is large at this time, the Doppler frequency offset has a great influence on the system performance, and the Doppler frequency offset of the UE relative to a certain one of the multiple cells is positive, then relative to the cell The Doppler shift of another neighboring cell may be negative. At this time, if the combination of the frequency discrimination results of multiple cells is still used, the Doppler frequency offset values of multiple cells may be canceled positively and negatively, and the Doppler frequency offset of multiple cells is obtained, which seriously affects system performance.
  • the noise impact of the cell other than the serving cell in the multiple cells on the serving cell is larger than that obtained by the merge mode. Therefore, the frequency discriminating result of the serving cell may be obtained from the frequency discriminating result of the multiple cells. Therefore, noise can be filtered out, data transmission performance and network stability can be improved.
  • the determination of the preset threshold in the foregoing embodiment may be performed as follows:
  • the preset threshold needs to be satisfied, when the moving speed of the UE takes the preset threshold, the cells other than the serving cell in the multiple cells are in the serving cell.
  • the influence of noise is just equivalent to the gain obtained by combining multiple cells in a combined manner.
  • the method for obtaining the frequency identification result of the AFC in this embodiment changes the moving speed of the UE in the prior art, resulting in low communication stability and low data transmission performance.
  • the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, and the communication of the HSPA system can be effectively improved. Stability and data transfer performance; thus greatly improving the UE experience.
  • the technical solution of the present invention of the above embodiment can be applied to a high speed mobile scene of the HSPA system.
  • the UE is often in a moving state away from a certain cell A and close to the cell B during the moving process.
  • the range that can be covered by both cells A and B creates a soft handoff.
  • the existing AFC frequency discrimination technology scheme is adopted, the performance will be greatly lost or even the data transmission is interrupted.
  • the UE first follows the carrier frequency of the serving cell A (at this time, the UE uses the frequency discriminating result of the cell A, and the cell B has a Doppler frequency offset), and the cell B signal is gradually enhanced.
  • the serving cell change signaling is sent to the network side, the cell B becomes the serving cell, and the UE becomes the frequency discriminating result of the cell B, ensuring the carrier frequency of the serving cell. Therefore, the technical solution of the embodiment of the present invention can effectively improve data transmission performance.
  • FIG. 4 is a schematic structural diagram of an apparatus for acquiring a frequency identification result of an AFC according to an embodiment of the present invention.
  • the device for obtaining a frequency of the AFC of the present embodiment may specifically include: a first acquiring module 10 and a second acquiring module 11.
  • the first obtaining module 10 is configured to obtain, from a plurality of frequency discriminating modules, a frequency discriminating result of the multiple cells corresponding to the UE, where the multiple cells are all the cells corresponding to the data that the UE can receive, where the multiple cells include the UE. Service area.
  • the second obtaining module 11 is connected to the first acquiring module 10, and the second obtaining module 11 is configured to acquire the AFC according to the size relationship between the moving speed of the UE and the preset threshold, and the frequency discriminating result of the multiple cells received by the first acquiring module 10. Frequency identification results.
  • the method for obtaining the AFC of the AFC in this embodiment can be referred to the description of the foregoing related method embodiments by using the above-mentioned module, and details are not described herein again.
  • the frequency-of-frequency result obtaining device of the AFC in this embodiment obtains the frequency discriminating result of the multiple cells corresponding to the UE by using the foregoing module; and obtains the frequency relationship between the moving speed of the UE and the preset threshold and the frequency discriminating result of the multiple cells.
  • AFC's frequency discrimination results Changed in the prior art The moving speed of the UE is not considered, resulting in low communication stability and low data transmission performance. With the technical solution of the embodiment, the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, and the communication of the HSPA system can be effectively improved. Stability and data transfer performance; thus also greatly improving the UE experience.
  • FIG. 5 is a schematic structural diagram of an apparatus for acquiring a frequency identification result of an AFC according to another embodiment of the present invention.
  • the frequency-determining result obtaining apparatus of the AFC of the present embodiment may further include the determining module 12 only on the basis of the embodiment shown in FIG.
  • the determining module 12 is configured to determine a magnitude relationship between a moving speed of the UE and a preset threshold.
  • the second obtaining module 11 is connected to the determining module 12, and the second obtaining module 11 is configured to determine the relationship between the moving speed of the UE and the preset threshold according to the determining module 12, and the plurality of cells received by the first acquiring module 10.
  • the frequency result obtains the frequency discrimination result of AFC.
  • the second obtaining module 11 may specifically include the acquiring unit 111 and the processing unit 112, when the moving speed of the UE is greater than or equal to a preset threshold, according to the method for obtaining the frequency of the AFC.
  • the obtaining unit 111 is connected to the determining module 12 and the first acquiring module 10, respectively.
  • the obtaining unit 111 is configured to: when the determining module 12 determines that the moving speed of the UE is greater than or equal to a preset threshold, the multiple cells received from the first acquiring module 10 The frequency discrimination result of the serving cell is obtained in the frequency discrimination result.
  • the processing unit 112 is connected to the obtaining unit 111, and the processing unit 112 is configured to use the frequency discriminating result of the serving cell obtained by the obtaining unit 111 as the frequency discriminating result of the AFC.
  • the second obtaining module 11 does not include the obtaining unit 111 and the processing unit 112, when the determining module 12 determines that the moving speed of the UE is less than a preset threshold, on the basis of the discriminating result obtaining device of the AFC.
  • the second acquisition module 11 is connected to the determination module 12, which is not shown in FIG.
  • the second obtaining module 11 is specifically configured to combine the frequency discriminating results of the multiple cells as the frequency discriminating result of the AFC when the determining module 12 determines that the moving speed of the UE is less than a preset threshold.
  • the frequency discrimination result obtaining device of the AFC of the embodiment may further include a transmitting module 13.
  • the sending module 13 is configured to send a frequency discriminating result of the AFC to the loop filter, so that the loop filter filters the frequency discriminating result of the AFC, and the processing module obtains a voltage value according to the frequency discriminating result of the filtered AFC.
  • the VCXO generates a corresponding frequency oscillation signal according to the voltage value, and the frequency oscillation signal serves as a clock source for the UE to work normally.
  • the determining module 12 determines that the moving speed of the UE is greater than or equal to the preset threshold, as shown in FIG.
  • the sending module 13 is connected to the processing unit 112, and the sending module 13 is configured to send the AFC processed by the processing unit 112 to the loop filter. Frequency identification results.
  • the sending module 13 should be connected to the second obtaining module 11, which is not shown in the figure. At this time, the sending module 13 is configured to send the second acquiring module to the loop filter. 11 Process the obtained frequency discrimination result of AFC.
  • the method for obtaining the AFC of the AFC in this embodiment can be referred to the description of the foregoing related method embodiments by using the above-mentioned module, and details are not described herein again.
  • the discriminating result obtaining device of the AFC of the present embodiment can change the moving speed of the UE without considering the UE in the prior art by using the above module, resulting in low communication stability and low data transmission performance.
  • the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, and the communication of the HSPA system can be effectively improved. Stability and data transfer performance; thus also greatly improving the UE experience.
  • FIG. 6 is a schematic structural diagram of an AFC device according to an embodiment of the present invention. As shown in FIG. 6, the AFC device of the embodiment includes a plurality of frequency discriminating modules 20 and a frequency discriminating result obtaining device of the AFC.
  • Loop filter 40 processing module 50 and VCXO60;
  • the plurality of frequency discriminating modules 20 are configured to obtain the frequency discriminating result of the multiple cells of the UE; the multiple cells are all cells that the UE can receive corresponding to the data.
  • AFC frequency discrimination result obtaining device 30 A plurality of frequency discriminating modules 20 are connected to each other, and the frequency discriminating result obtaining means 30 of the AFC is configured to obtain the AFC according to the frequency discriminating result of the plurality of cells acquired by the plurality of frequency discriminating modules 20 and the magnitude relationship between the moving speed of the UE and the preset threshold. The frequency of the results.
  • the loop filter 40 is connected to the frequency discrimination result obtaining means 30 of the AFC, and the loop filter 40 is configured to filter the frequency discrimination result of the AFC acquired by the frequency discrimination result obtaining means 30 of the AFC.
  • the processing module 50 is connected to the loop filter 40, and the processing module 50 is configured to obtain a voltage value according to the frequency discrimination result of the AFC filtered by the loop filter 40. For example, the processing module 50 may first add the frequency deviation of the frequency discrimination result of the AFC filtered by the loop filter 40 to the current frequency pre-stored in the processing module 50 to obtain the adjusted frequency. The pre-stored current frequency is the last adjusted frequency.
  • the processing module 50 is further configured to map the adjusted frequency to a voltage value.
  • the processing module 50 can be integrated with an accumulator and a converter.
  • the accumulator is configured to add the frequency deviation of the frequency discrimination result of the AFC obtained by filtering the loop filter 40 to the pre-stored current frequency to obtain the adjusted frequency.
  • the converter is used to map the accumulator adjusted frequency to a voltage value.
  • the VCXO 60 is connected to the processing module 50.
  • the VCXO 60 generates a corresponding frequency oscillation signal according to the voltage value obtained by the processing module 50, and the frequency oscillation signal serves as a clock source for the UE to work normally.
  • the preset receiving frequency used when the plurality of frequency discriminating modules 20 acquire the frequency deviation as the frequency discriminating result may be generated according to the frequency oscillation signal generated by the VCXO 60.
  • the frequency-detecting result obtaining device 30 of the AFC in this embodiment may adopt the frequency-collecting result obtaining device of the AFC in the embodiment shown in FIG. 4 or FIG. 5, and may be implemented in the foregoing FIG. 2 or FIG.
  • the method for obtaining the frequency of the AFC is used to obtain the result of the frequency discrimination of the AFC.
  • the AFC device of this embodiment can change the moving speed of the UE without considering the UE in the prior art by using the plurality of frequency discriminating modules 20, the frequency discriminating result obtaining device 30, the loop filter 40, the processing module 50, and the VCXO 60 of the AFC. , resulting in low communication stability and low data transmission performance.
  • the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination can be obtained according to the relationship between the moving speed of the UE and the preset threshold.
  • the communication stability and data transmission performance of the HSPA system can be effectively improved; thus, the UE experience can be greatly improved.
  • the device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to at least two network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

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Abstract

Embodiments of the present invention provide a method, a device and an apparatus for obtaining a frequency discrimination result of auto frequency control. The method comprises: acquiring, from multiple frequency discrimination modules, frequency discrimination results of multiple cells corresponding to a user equipment, the multiple cells being cells corresponding to data capable of being received by the user equipment, and the multiple cells comprising a serving cell of the user equipment; according to a magnitude relation between the moving speed of the user equipment and a preset threshold and according to the frequency discrimination results of the multiple cells, acquiring a frequency discrimination result of auto frequency control. By using the technical solution of the embodiments of the present invention, the communication stability and data transmission performance of an HSPA system can be improved effectively.

Description

自动频率控制的鉴频结果获取方法、 装置与设备 技术领域  Method, device and device for acquiring frequency identification result of automatic frequency control
本发明实施例涉及通信技术领域， 尤其涉及一种自动频率控制的鉴频 结果获取方法、 装置与设备。 背景技术  The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, device, and device for acquiring frequency discrimination results of automatic frequency control. Background technique
高速分组接入 ( High Speed Packet Access; 以下简称 HSPA ) ***是 宽带码分多址 （ Wideband Code Division Multiple Access； 以下简称 WCDMA )***的升级，相对于 WCDMA***中的专用物理信道（ Dedicate Physical Channel; 以下简称 DPCH )主要是增加了高速物理下行共享信道 ( High Speed- Physical Downlink Shared Channel; 以下简称 HS-PDSCH ) 以支持高速业务。 这样， HSPA***就有两个专用信道， 一个 DPCH, — 个是 HS-PDSCH。 DPCH支持软切换技术， 对应的软切换过程中， 由于用 户设备（ User Equipment; 以下简称 UE )和网络侧多个小区同时保持通信， 且和每个小区的通信内容都相同。 UE 通常对该多个小区的接收数据做合 并处理以获得增益。 具体地采用如下鉴频方式以支持上述软切换： UE 侧 的自动频率控制 （ Auto Frequency Control; 以下简称 AFC )设备将其中的 鉴频模块得到的鉴频结果进行合并作为 AFC设备的鉴频结果。 AFC设备 中的鉴频模块分别对应 UE能够接收到数据的小区。 每一个鉴频模块对应 一个 UE的小区。其中 AFC设备中的各小区对应的鉴频模块具体用于获取 UE接收的数据的频率相对于该小区发送的该数据的频率的频偏， 该频率 偏差包括 UE与该小区所在基站的本振频率差和多普勒频偏。 其中多普勒 频偏是指 UE和该小区天线存在相对运动而产生的， 此时 UE接收数据的 频率和该小区发送数据的频率存在偏差。 且 UE相对运动速度越快， 多普 勒频偏越大。 相对速度为正 （如 UE靠近小区时） ， 多普勒频偏也为正。 相对速度为负 （例如 UE远离小区时） 导致的多普勒频偏为负。 在实现本发明过程中， 发明人发现现有技术中至少存在如下问题： 上 述支持软切换的鉴频方案中， UE侧并没有考虑 UE的移动速度， 而直接 在 AFC中将所有小区的鉴频结果做合并，例如当 UE相对移动速度较大时， 多普勒频偏会严重影响 HSPA***中 HS-PDSCH的接收，从而影响 HSPA ***性能， 造成通信稳定性较低、 数据传输性能较低。 发明内容 High Speed Packet Access (HSPA) system is an upgrade of Wideband Code Division Multiple Access (WCDMA) system, compared to a dedicated physical channel in a WCDMA system (Dedicate Physical Channel; The following is abbreviated as DPCH. The main purpose is to increase the High Speed-Physical Downlink Shared Channel (HS-PDSCH) to support high-speed services. Thus, the HSPA system has two dedicated channels, one DPCH, and one is the HS-PDSCH. The DPCH supports the soft handover technology. In the corresponding soft handover process, the user equipment (User Equipment; hereinafter referred to as the UE) and the multiple cells on the network side maintain communication at the same time, and the communication content with each cell is the same. The UE typically performs a combining process on the received data of the plurality of cells to obtain a gain. Specifically, the following frequency discrimination mode is adopted to support the above soft handover: the automatic frequency control (Auto Frequency Control; hereinafter referred to as AFC) device on the UE side combines the frequency discrimination results obtained by the frequency discrimination module as the frequency discrimination result of the AFC device. The frequency discrimination modules in the AFC device respectively correspond to cells in which the UE can receive data. Each frequency discrimination module corresponds to a cell of one UE. The frequency discriminating module corresponding to each cell in the AFC device is specifically configured to obtain a frequency offset of a frequency of the data received by the UE relative to a frequency of the data sent by the cell, where the frequency offset includes a local oscillator frequency of the UE and a base station where the cell is located. Poor and Doppler shift. The Doppler frequency offset is generated by the relative motion of the UE and the antenna of the cell. At this time, there is a deviation between the frequency at which the UE receives data and the frequency at which the cell transmits data. And the faster the relative motion speed of the UE, the larger the Doppler frequency offset. The relative speed is positive (such as when the UE is close to the cell), and the Doppler frequency offset is also positive. The Doppler frequency offset is negative when the relative speed is negative (for example, when the UE is away from the cell). In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: In the above-mentioned frequency-modulation scheme supporting soft handover, the UE side does not consider the moving speed of the UE, but directly discriminates all the cells in the AFC. The result is merged. For example, when the relative movement speed of the UE is large, the Doppler frequency offset will seriously affect the reception of the HS-PDSCH in the HSPA system, thereby affecting the performance of the HSPA system, resulting in low communication stability and low data transmission performance. Summary of the invention
本发明实施例提供一种自动频率控制的鉴频结果获取方法、 装置与设 备， 用以解决现有技术中 HSPA***的软切换过程中未考虑 UE的移动速 度， 造成 HSPA***通信稳定性较低、 数据传输性能较低的缺陷。  The embodiment of the invention provides a method, a device and a device for acquiring a frequency-detection result of an automatic frequency control, which are used to solve the problem that the moving speed of the UE is not considered in the soft handover process of the HSPA system in the prior art, and the communication stability of the HSPA system is low. , the defect of low data transmission performance.
本发明实施例提供一种自动频率控制的鉴频结果获取方法， 包括： 从多个鉴频模块中获取用户设备对应的多个小区的鉴频结果； 所述多 个小区为所述用户设备能够接收到数据对应的小区， 所述多个小区中包括 所述用户设备的服务小区；  An embodiment of the present invention provides a method for obtaining a frequency identification result of an automatic frequency control, including: acquiring, from a plurality of frequency discriminating modules, a frequency discriminating result of a plurality of cells corresponding to the user equipment; Receiving a cell corresponding to the data, where the plurality of cells include a serving cell of the user equipment;
根据所述用户设备的移动速度与预设阈值的大小关系以及所述多个 小区的鉴频结果获取自动频率控制的鉴频结果。  And obtaining a frequency discriminating result of the automatic frequency control according to a magnitude relationship between a moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the plurality of cells.
本发明实施例提供一种自动频率控制的鉴频结果获取装置， 包括： 第一获取模块， 用于从多个鉴频模块中获取用户设备对应的多个小区 的鉴频结果； 所述多个小区为所述用户设备能够接收到数据对应的小区， 所述多个小区中包括所述用户设备的服务小区；  An embodiment of the present invention provides an apparatus for acquiring a frequency-determined result of an automatic frequency control, including: a first acquiring module, configured to acquire, from a plurality of frequency-detecting modules, a frequency-collecting result of multiple cells corresponding to the user equipment; The cell is a cell corresponding to the user equipment, and the plurality of cells include a serving cell of the user equipment;
第二获取模块， 用于根据所述用户设备的移动速度与预设阈值的大小 关系以及所述多个小区的鉴频结果获取自动频率控制的鉴频结果。  And a second obtaining module, configured to acquire a frequency discriminating result of the automatic frequency control according to a size relationship between the moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the multiple cells.
本发明实施例还提供一种自动频率控制设备， 包括多个鉴频模块、 自 动频率控制的鉴频结果获取装置、 环路滤波器、 处理模块和压控晶体振荡 器； 所述多个鉴频模块， 用于获取用户设备对应的多个小区的鉴频结果； 所述多个小区为所述用户设备能够接收到数据对应的小区； 所述多个小区 中包括所述用户设备的服务小区； The embodiment of the invention further provides an automatic frequency control device, which comprises a plurality of frequency discriminating modules, an automatic frequency control frequency discriminating result obtaining device, a loop filter, a processing module and a voltage controlled crystal oscillator; The plurality of frequency discriminating modules are configured to obtain a frequency discriminating result of the multiple cells corresponding to the user equipment; the multiple cells are the cells that the user equipment can receive the data; the multiple cells include the a serving cell of the user equipment;
所述自动频率控制的鉴频结果获取装置， 用于根据所述多个鉴频模块 获取到的所述多个小区的鉴频结果、 以及所述用户设备的移动速度与预设 阈值的大小关系获取自动频率控制的鉴频结果；  The frequency-frequency result obtaining device of the automatic frequency control is configured to determine, according to the frequency discriminating result of the plurality of cells acquired by the plurality of frequency discriminating modules, a relationship between a moving speed of the user equipment and a preset threshold Obtaining the frequency identification result of the automatic frequency control;
所述环路滤波器， 用于对所述自动频率控制的鉴频结果获取装置获取 的所述自动频率控制的鉴频结果进行滤波；  The loop filter is configured to filter the frequency identification result of the automatic frequency control acquired by the frequency-determining result obtaining device of the automatic frequency control;
所述处理模块， 用于根据所述环路滤波器滤波后的所述自动频率控制 的鉴频结果获取一电压值；  The processing module is configured to acquire a voltage value according to the frequency discriminating result of the automatic frequency control filtered by the loop filter;
所述压控晶体振荡器， 用于根据所述处理模块获取的所述电压值产生 对应的频率振荡信号， 所述频率振荡信号作为所述用户设备正常工作的时 钟源。  The voltage controlled crystal oscillator is configured to generate a corresponding frequency oscillation signal according to the voltage value obtained by the processing module, where the frequency oscillation signal is used as a clock source for the user equipment to work normally.
本发明实施例的自动频率控制的鉴频结果获取方法、 装置与设备， 通 过从多个鉴频模块中获取用户设备对应的多个小区的鉴频结果； 所述多个 小区为所述用户设备能够接收到数据对应的小区， 所述多个小区中包括所 述用户设备的服务小区； 根据所述用户设备的移动速度与预设阈值的大小 关系以及所述多个小区的鉴频结果获取自动频率控制的鉴频结果。 改变了 现有技术中未考虑用户设备的移动速度， 造成通信稳定性较低、 数据传输 性能较低。 采用本发明实施例的技术方案， 软切换过程中考虑到了用户设 备的移动速度， 并能够根据用户设备的移动速度与预设阈值的大小关系获 取准确的自动频率控制的鉴频结果， 能够有效地提高 HSPA***的通信稳 定性以及数据传输性能； 从而也能极大改善用户设备的体验。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见地， 下 面描述中的附图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他的附图。 The method, device, and device for obtaining the frequency identification result of the automatic frequency control according to the embodiment of the present invention, the frequency identification result of the multiple cells corresponding to the user equipment is obtained by using multiple frequency discrimination modules; the multiple cells are the user equipment Receiving a cell corresponding to the data, where the plurality of cells include a serving cell of the user equipment; and automatically acquiring, according to a size relationship between a moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the multiple cells. Frequency control results of frequency control. The moving speed of the user equipment is not considered in the prior art, resulting in low communication stability and low data transmission performance. According to the technical solution of the embodiment of the present invention, the moving speed of the user equipment is taken into consideration in the soft handover process, and the frequency identification result of the automatic frequency control can be accurately obtained according to the relationship between the moving speed of the user equipment and the preset threshold. Improve the communication stability and data transmission performance of the HSPA system; thus, it can greatly improve the user equipment experience. DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.
图 1为现有技术的 AFC 设备的结构示意图；  1 is a schematic structural view of a prior art AFC device;
图 2为本发明一实施例提供的自动频率控制的鉴频结果获取方法的流 程图；  2 is a flow chart of a method for acquiring a frequency discrimination result of automatic frequency control according to an embodiment of the present invention;
图 3为本发明另一实施例提供的自动频率控制的鉴频结果获取方法的 流程图；  3 is a flowchart of a method for acquiring a frequency discrimination result of automatic frequency control according to another embodiment of the present invention;
图 4为本发明一实施例提供的自动频率控制的鉴频结果获取装置的结 构示意图；  4 is a schematic structural diagram of an apparatus for acquiring frequency discriminating results of automatic frequency control according to an embodiment of the present invention;
图 5为本发明另一实施例提供的自动频率控制的鉴频结果获取装置的 结构示意图；  FIG. 5 is a schematic structural diagram of an apparatus for acquiring frequency discriminating results of automatic frequency control according to another embodiment of the present invention; FIG.
图 6为本发明实施例提供的自动频率控制设备的结构示意图。 具体实施方式  FIG. 6 is a schematic structural diagram of an automatic frequency control device according to an embodiment of the present invention. detailed description
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本 发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描 述， 显然， 所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例， 都属于本发明保护的范围。  The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
DPCH信道支持软切换技术， UE可以通过 DPCH和网络侧多个小区 同时保持通信， 且和每个小区的通信内容都相同。 UE 可以对软切换的每 个小区进行鉴频， 然后将这些鉴频结果合并作为最终鉴频结果， 例如 WCDMA***中就是采用这种鉴频方式支持软切换。 在 HSPA***中， 使 用 HS-PDSCH时， DPCH也同时存在，此时 DPCH主要用来传送信令和功 率控制命令。 当 UE移动速度较低时， 采用上述鉴频结果合并的方式也是 有增益的， 但是当 UE 的移动速度较高时， 由于 HSPA ***中采用的 HS-PDSCH不支持软切换技术， 同一时刻 UE只与一个小区 （即当前服务 小区） 进行通信。 当 UE 高速移动时， UE 高速移动带来的多普勒频偏将 会导致 UE和服务小区的频偏较大， 且由于 HS-PDSCH只跟踪服务小区， 此时采用上述鉴频结果合并的方式不会给***带来任何增益， 反而会严重 影响 HS-PDSCH通信性能， 造成通信稳定性较低、 数据传输性能较低。 采 用下述本发明实施例的技术方案可以解决此问题。 The DPCH channel supports the soft handover technology, and the UE can simultaneously maintain communication through the DPCH and multiple cells on the network side, and the communication content is the same as that of each cell. The UE can discriminate each cell of the soft handover, and then combine the frequency discrimination results as a final frequency discrimination result. For example, in the WCDMA system, the frequency discrimination is used to support the soft handover. In the HSPA system, when the HS-PDSCH is used, the DPCH also exists. At this time, the DPCH is mainly used to transmit signaling and work. Rate control command. When the UE moves at a lower speed, the method of combining the above-mentioned frequency discrimination results also has a gain, but when the mobile speed of the UE is high, since the HS-PDSCH used in the HSPA system does not support the soft handover technology, the UE only needs the same time. Communicate with a cell (ie, the current serving cell). When the UE moves at a high speed, the Doppler frequency offset caused by the high-speed mobile of the UE will result in a larger frequency offset between the UE and the serving cell, and since the HS-PDSCH only tracks the serving cell, the above-mentioned method of combining the frequency discrimination results is adopted. It will not bring any gain to the system, but will seriously affect the performance of HS-PDSCH communication, resulting in low communication stability and low data transmission performance. This problem can be solved by the following technical solution of the embodiment of the present invention.
图 1为现有技术的 AFC设备的结构示意图。 如图 1所示， 现有技术 的 AFC设备可以包括多个鉴频模块 1、 合并模块 2、 环路滤波器 3、 处理 模块 4和压控晶体振荡器 （ Voltage-controlled Crystal oscillator; 以下简称 VCXO ) 5。  1 is a schematic structural view of a prior art AFC device. As shown in FIG. 1 , the prior art AFC device may include multiple frequency discriminating modules 1, a merging module 2, a loop filter 3, a processing module 4, and a voltage-controlled crystal oscillator (hereinafter referred to as VCXO). ) 5.
在软切换过程， 现有技术中在 UE侧采用图 1所示的 AFC设备对 UE 的接收频率进行调整， 以便增强数据传输性能、 提高软切换效率。 如图 1 所示， 每个鉴频模块 1对应一个小区。 多个鉴频模块 1分别对应 UE能够 接收到数据的多个小区。 每个鉴频模块 1用于获取对应小区发送数据的频 率与预设的接收频率的频率偏差作为鉴频结果。 合并模块 2分别与多个鉴 频模块 1连接， 合并模块 2用于将多个鉴频模块 1得到的鉴频结果进行合 并作为 AFC的鉴频结果。 环路滤波器 3与合并模块 2连接， 环路滤波器 3 用于对合并模块 2处理得到的 AFC的鉴频结果进行滤波处理。处理模块 4 与环路滤波器 3连接， 处理模块 4用于根据环路滤波器 3 滤波处理后的 AFC的鉴频结果获取一个电压值。例如处理模块 4可以先将作为滤波处理 后的 AFC的鉴频结果的频率偏差与处理模块 4中预存储的当前频率相加， 得到调整后的频率。 该预存储的当前频率为上一次调整后的频率。 处理模 块 4还用于将调整后的频率映射为一个电压值。 VCX05与处理模块 4连 接， VCX05用于根据处理模块 4得到的电压值产生对应的频率振荡信号， 该频率振荡信号作为 UE正常工作的时钟源。 In the soft handover process, the AFC device shown in FIG. 1 is used to adjust the receiving frequency of the UE on the UE side in the prior art, so as to enhance data transmission performance and improve soft handover efficiency. As shown in FIG. 1, each frequency discrimination module 1 corresponds to one cell. The plurality of frequency discriminating modules 1 respectively correspond to a plurality of cells in which the UE can receive data. Each frequency discriminating module 1 is configured to obtain a frequency deviation of a frequency of a corresponding cell transmission data and a preset receiving frequency as a frequency discrimination result. The merging module 2 is connected to the plurality of frequency discriminating modules 1 respectively, and the merging module 2 is used to combine the frequency discriminating results obtained by the plurality of frequency discriminating modules 1 as the frequency discriminating result of the AFC. The loop filter 3 is connected to the merging module 2, and the loop filter 3 is used for filtering the frequency discrimination result of the AFC processed by the merging module 2. The processing module 4 is connected to the loop filter 3, and the processing module 4 is configured to acquire a voltage value according to the frequency discrimination result of the AFC filtered by the loop filter 3. For example, the processing module 4 may first add the frequency deviation of the frequency discrimination result of the filtered AFC to the current frequency pre-stored in the processing module 4 to obtain the adjusted frequency. The pre-stored current frequency is the last adjusted frequency. The processing module 4 is further configured to map the adjusted frequency to a voltage value. The VCX05 is connected to the processing module 4, and the VCX05 is configured to generate a corresponding frequency oscillation signal according to the voltage value obtained by the processing module 4. The frequency oscillation signal serves as a clock source for the UE to work normally.
上述现有技术中， 未考虑 UE的移动速度， 而将该 UE对应的多个小 区的鉴频结果直接合并。 例如出于连接态（正在进行语音或者数据传输业 务） 的 UE高速移动过程中， 由于多普勒频偏的存在， 例如 UE在两小区 A和 B之间直线移动，此时 UE对小区 A的多普勒频偏鉴频结果为 700Hz, UE相对小区 B的多普勒频偏鉴频结果为 -700Hz,合并的结果是 AFC的鉴 频结果为 0, 从而导致 VCXO不做调整， 造成数据传输性能较低， 软切换 效率较低。  In the above prior art, the moving speed of the UE is not considered, and the frequency discriminating results of the plurality of cells corresponding to the UE are directly combined. For example, during the high-speed movement of the UE in the connected state (the voice or data transmission service is in progress), due to the existence of the Doppler frequency offset, for example, the UE moves linearly between the two cells A and B, and the UE is at the cell A at this time. The Doppler frequency offset frequency discrimination result is 700 Hz, and the Doppler frequency offset frequency difference result of the UE relative to the cell B is -700 Hz. The result of the combination is that the frequency discrimination result of the AFC is 0, thereby causing the VCXO to not perform adjustment, resulting in data transmission. Low performance and low soft switching efficiency.
图 2为本发明一实施例提供的 AFC的鉴频结果获取方法的流程图。 本实施例的 AFC的鉴频结果获取方法的执行主体为一 AFC的鉴频结果获 取装置。 该 AFC的鉴频结果获取装置可以位于 UE侧的 AFC设备中。 如 图 2所示， 本实施例的 AFC的鉴频结果获取方法， 具体可以包括如下： 100、 从多个鉴频模块中获取 UE对应的多个小区的鉴频结果； 其中该多个小区为 UE能够接收到数据对应的小区， 其中多个小区中 包括 UE的服务小区以及该 UE的非服务小区即 UE的邻区。 其中本实施 例中的多个鉴频模块与多个小区一一对应。 每一个鉴频模块能够获取一个 小区的发送数据的频率与预设的接收频率的频率偏差即鉴频结果。  FIG. 2 is a flowchart of a method for acquiring a frequency discrimination result of an AFC according to an embodiment of the present invention. The execution body of the method for obtaining the frequency discrimination result of the AFC of the present embodiment is an AFC frequency discrimination result acquisition device. The frequency discrimination result obtaining means of the AFC may be located in the AFC device on the UE side. As shown in FIG. 2, the method for obtaining the frequency identification result of the AFC in this embodiment may include the following steps: 100. Acquire, from a plurality of frequency discriminating modules, a frequency discriminating result of multiple cells corresponding to the UE; where the multiple cells are The UE can receive the cell corresponding to the data, where the plurality of cells include the serving cell of the UE and the non-serving cell of the UE, that is, the neighboring cell of the UE. The plurality of frequency discriminating modules in the embodiment are in one-to-one correspondence with the plurality of cells. Each frequency discriminating module can acquire the frequency deviation of the frequency of the transmission data of one cell and the preset reception frequency, that is, the frequency discrimination result.
101、根据 UE的移动速度与预设阈值的大小关系以及多个小区的鉴频 结果获取 AFC的鉴频结果。  101. Acquire a frequency identification result of the AFC according to a relationship between a moving speed of the UE and a preset threshold, and a frequency discrimination result of the multiple cells.
本实施例的 AFC 的鉴频结果获取方法， 通过从多个鉴频模块中获取 The method for obtaining the frequency identification result of the AFC in this embodiment is obtained by using multiple frequency discriminating modules.
UE对应的多个小区的鉴频结果； 根据 UE的移动速度与预设阈值的大小 关系以及多个小区的鉴频结果获取 AFC 的鉴频结果。 改变了现有技术中 未考虑 UE的移动速度， 造成通信稳定性较低、 数据传输性能较低。 采用 本实施例的技术方案， 软切换过程中考虑到了 UE的移动速度并能够根据 UE的移动速度与预设阈值的大小关系获取准确的 AFC的鉴频结果， 能够 有效地提高 HSPA***的通信稳定性以及数据传输性能； 从而也能极大改 善 UE的体验。 The frequency discriminating result of the multiple cells corresponding to the UE; obtaining the frequency discriminating result of the AFC according to the magnitude relationship between the moving speed of the UE and the preset threshold and the frequency discriminating result of the plurality of cells. The moving speed of the UE is not considered in the prior art, resulting in low communication stability and low data transmission performance. With the technical solution of the embodiment, the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, which can effectively improve the communication stability of the HSPA system. Sex and data transmission performance; thus it can also be greatly changed Good UE experience.
可选地， 在上述实施例的 100之前或者 100与 101之间还包括： 确定 UE的移动速度与预设阈值的大小关系。 例如可以通过在 UE 中设置一个 速度检测器， 来检测 UE的移动速度。  Optionally, before the 100 of the foregoing embodiment or between 100 and 101, the method further includes: determining a size relationship between a moving speed of the UE and a preset threshold. For example, the speed of the UE can be detected by setting a speed detector in the UE.
图 3为本发明另一实施例提供的 AFC的鉴频结果获取方法的流程图。 图 3所示实施实施例在上述图 2所示实施例的基础上， 进一步详细解释本 发明实施例的技术方案。 如图 3所示， 本实施例的 AFC的鉴频结果获取 方法， 具体可以包括如下：  FIG. 3 is a flowchart of a method for obtaining a frequency discrimination result of an AFC according to another embodiment of the present invention. The embodiment shown in FIG. 3 further explains the technical solution of the embodiment of the present invention in detail based on the embodiment shown in FIG. 2 above. As shown in FIG. 3, the method for obtaining the frequency identification result of the AFC in this embodiment may specifically include the following:
200、 从多个鉴频模块中获取 UE对应的多个小区的鉴频结果； 执行 201 ;  200. Acquire, from multiple discriminating modules, a frequency discriminating result of multiple cells corresponding to the UE; performing 201;
201、 判断 UE的移动速度是否大于等于预设阈值； 当确定 UE的移动 速度大于等于预设阈值时， 执行 202, 否则当确定 UE的移动速度小于预 设阈值时， 执行 203;  201, determining whether the moving speed of the UE is greater than or equal to a preset threshold; when it is determined that the moving speed of the UE is greater than or equal to a preset threshold, performing 202, otherwise performing 203 when determining that the moving speed of the UE is less than a preset threshold;
其中 200和 201可以没有先后顺序。  200 and 201 can be in no order.
202、 从多个小区的鉴频结果中获取服务小区的鉴频结果； 执行 204; 202: Obtain a frequency identification result of the serving cell from the frequency discriminating result of the multiple cells;
203、 将多个小区的鉴频结果合并作为 AFC的鉴频结果； 203. Combine the frequency identification results of the multiple cells as the frequency discrimination result of the AFC.
204、 将服务小区的鉴频结果作为 AFC的鉴频结果；  204. The frequency identification result of the serving cell is used as a frequency discriminating result of the AFC.
可选地， 203和 204之后， 进一步还包括如下 205。 图 3 中是以 205 位于 204之后为例， 同理， 该 205也可以位于 203之后。  Optionally, after 203 and 204, further comprising the following 205. In Fig. 3, the 205 is located after 204. For the same reason, the 205 may also be located after 203.
205、 向环路滤波器发送 AFC 的鉴频结果， 以供环路滤波器对 AFC 的鉴频结果进行滤波， 并由处理模块根据滤波后的 AFC 的鉴频结果获取 一电压值，再由 VCXO根据该电压值产生对应的频率振荡信号， 该频率振 荡信号作为 UE正常工作的时钟源。  205. Send a frequency discriminating result of the AFC to the loop filter, so that the loop filter filters the frequency discriminating result of the AFC, and the processing module obtains a voltage value according to the frequency discriminating result of the filtered AFC, and then the VCXO. A corresponding frequency oscillation signal is generated according to the voltage value, and the frequency oscillation signal is used as a clock source for the UE to work normally.
本实施例中， 当 UE的移动速度小于预设阈值时， 此时按照 203所述， 将多个小区的鉴频结果合并作为 AFC 的鉴频结果。 此时相当于可以通过 合并的方式以获取增益， 减低 UE掉网的概率， 提高数据传输性能及网络 的稳定性。 且 UE的移动速度小于预设阈值时， 多个小区中服务小区之外 的其他小区对服务小区的噪声影响相对于通过合并的方式获取的增益较 小， 因此可以将多个小区的鉴频结果合并作为 AFC的鉴频结果。 In this embodiment, when the moving speed of the UE is less than the preset threshold, the frequency discriminating result of the multiple cells is combined as the frequency discriminating result of the AFC according to 203. At this time, it is equivalent to obtaining the gain by combining, reducing the probability of the UE dropping the network, improving the data transmission performance and the network. Stability. When the moving speed of the UE is less than the preset threshold, the noise impact of the cell other than the serving cell in the multiple cells on the serving cell is smaller than that obtained by the merge mode, so the frequency discriminating result of the multiple cells can be obtained. Merged as a result of the AFC's frequency discrimination.
当 UE的移动速度大于等于预设阈值时， 此时按照 202中所述， 从多 个小区的鉴频结果中获取服务小区的鉴频结果。 由于此时 UE的移动速度 较大， 多普勒频偏对***性能的影响较大， 且 UE相对于多个小区中的某 个小区的多普勒频偏为正， 那么相对于与该小区相邻的另一个小区的多普 勒频偏就可能为负。 此时若仍采用将多个小区的鉴频结果合并可能会将多 个小区的多普勒频偏值正负抵消， 得到多个小区的多普勒频偏为 0, 严重 影响了***性能。 此时多个小区中服务小区之外的其他小区对服务小区的 噪声影响相对于通过合并的方式获取的增益较大， 因此可以采取从多个小 区的鉴频结果中获取服务小区的鉴频结果， 因此可以滤除噪声， 提高数据 传输性能及网络的稳定性。  When the moving speed of the UE is greater than or equal to the preset threshold, the frequency discriminating result of the serving cell is obtained from the frequency discriminating result of the multiple cells as described in 202. Since the moving speed of the UE is large at this time, the Doppler frequency offset has a great influence on the system performance, and the Doppler frequency offset of the UE relative to a certain one of the multiple cells is positive, then relative to the cell The Doppler shift of another neighboring cell may be negative. At this time, if the combination of the frequency discrimination results of multiple cells is still used, the Doppler frequency offset values of multiple cells may be canceled positively and negatively, and the Doppler frequency offset of multiple cells is obtained, which seriously affects system performance. At this time, the noise impact of the cell other than the serving cell in the multiple cells on the serving cell is larger than that obtained by the merge mode. Therefore, the frequency discriminating result of the serving cell may be obtained from the frequency discriminating result of the multiple cells. Therefore, noise can be filtered out, data transmission performance and network stability can be improved.
但是上述实施例中的预设阈值的确定可以通过如下方式： 该预设阈值 需要满足， 当 UE的移动速度取该预设阈值时， 多个小区中服务小区之外 的其他小区对服务小区的噪声影响过正好相当于将多个小区以合并的方 式获取的增益。  However, the determination of the preset threshold in the foregoing embodiment may be performed as follows: The preset threshold needs to be satisfied, when the moving speed of the UE takes the preset threshold, the cells other than the serving cell in the multiple cells are in the serving cell. The influence of noise is just equivalent to the gain obtained by combining multiple cells in a combined manner.
本实施例的 AFC的鉴频结果获取方法， 改变了现有技术中未考虑 UE 的移动速度， 造成通信稳定性较低、 数据传输性能较低。 采用本实施例的 技术方案， 软切换过程中考虑到了 UE的移动速度， 并能够根据 UE的移 动速度与预设阈值的大小关系获取准确的 AFC 的鉴频结果， 能够有效地 提高 HSPA***的通信稳定性以及数据传输性能； 从而也能极大改善 UE 的体验。  The method for obtaining the frequency identification result of the AFC in this embodiment changes the moving speed of the UE in the prior art, resulting in low communication stability and low data transmission performance. With the technical solution of the embodiment, the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, and the communication of the HSPA system can be effectively improved. Stability and data transfer performance; thus greatly improving the UE experience.
上述实施例的本发明的技术方案可以应用于 HSPA ***高速移动场 景。 例如典型如高铁场景中， 由于高铁的网络一般沿铁路线规划， 因此 UE在移动过程中， 经常处于远离某小区 A, 靠近小区 B的运动状态， 在 小区 A和 B都能覆盖的范围， 就产生了软切换。 此时如果采用现有 AFC 鉴频技术方案， 性能会有较大损失甚至数传中断。 采用本发明上述实施例 的技术方案， UE会先紧跟服务小区 A的载波频率 （此时 UE采用小区 A 的鉴频结果， 和小区 B存在多普勒频偏）， 当小区 B信号逐渐增强到网络 侧下发服务小区变更信令后， 小区 B变成服务小区， UE变成采用小区 B 的鉴频结果， 确保紧跟服务小区的载波频率。 因此采用本发明实施例的 技术方案， 能够有效提升数据传输性能。 The technical solution of the present invention of the above embodiment can be applied to a high speed mobile scene of the HSPA system. For example, in a typical high-speed rail scenario, since the high-speed rail network is generally planned along the railway line, the UE is often in a moving state away from a certain cell A and close to the cell B during the moving process. The range that can be covered by both cells A and B creates a soft handoff. At this time, if the existing AFC frequency discrimination technology scheme is adopted, the performance will be greatly lost or even the data transmission is interrupted. With the technical solution of the foregoing embodiment of the present invention, the UE first follows the carrier frequency of the serving cell A (at this time, the UE uses the frequency discriminating result of the cell A, and the cell B has a Doppler frequency offset), and the cell B signal is gradually enhanced. After the serving cell change signaling is sent to the network side, the cell B becomes the serving cell, and the UE becomes the frequency discriminating result of the cell B, ensuring the carrier frequency of the serving cell. Therefore, the technical solution of the embodiment of the present invention can effectively improve data transmission performance.
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机 可读取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。  A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
图 4为本发明一实施例提供的 AFC的鉴频结果获取装置的结构示意 图。 如图 4所示， 本实施例的 AFC的鉴频结果获取装置， 具体可以包括： 第一获取模块 10和第二获取模块 11。  FIG. 4 is a schematic structural diagram of an apparatus for acquiring a frequency identification result of an AFC according to an embodiment of the present invention. As shown in FIG. 4, the device for obtaining a frequency of the AFC of the present embodiment may specifically include: a first acquiring module 10 and a second acquiring module 11.
其中第一获取模块 10用于从多个鉴频模块中获取 UE对应的多个小区 的鉴频结果； 该多个小区为 UE能够接收到数据对应的所有小区， 该多个 小区中包括 UE的服务小区。 第二获取模块 11与第一获取模块 10连接， 第二获取模块 11用于根据 UE的移动速度与预设阈值的大小关系以及第一 获取模块 10接收的多个小区的鉴频结果获取 AFC的鉴频结果。  The first obtaining module 10 is configured to obtain, from a plurality of frequency discriminating modules, a frequency discriminating result of the multiple cells corresponding to the UE, where the multiple cells are all the cells corresponding to the data that the UE can receive, where the multiple cells include the UE. Service area. The second obtaining module 11 is connected to the first acquiring module 10, and the second obtaining module 11 is configured to acquire the AFC according to the size relationship between the moving speed of the UE and the preset threshold, and the frequency discriminating result of the multiple cells received by the first acquiring module 10. Frequency identification results.
本实施例的 AFC的鉴频结果获取装置， 通过采用上述模块实现 AFC 详细可以参考上述相关方法实施例的记载， 在此不再赘述。  For example, the method for obtaining the AFC of the AFC in this embodiment can be referred to the description of the foregoing related method embodiments by using the above-mentioned module, and details are not described herein again.
本实施例的 AFC 的鉴频结果获取装置， 通过采用上述模块通过接收 UE对应的多个小区的鉴频结果； 根据 UE的移动速度与预设阈值的大小 关系以及多个小区的鉴频结果获取 AFC 的鉴频结果。 改变了现有技术中 未考虑 UE的移动速度， 造成通信稳定性较低、 数据传输性能较低。 采用 本实施例的技术方案， 软切换过程中考虑到了 UE的移动速度， 并能够根 据 UE的移动速度与预设阈值的大小关系获取准确的 AFC的鉴频结果，能 够有效地提高 HSPA***的通信稳定性以及数据传输性能； 从而也能极大 改善 UE的体验。 The frequency-of-frequency result obtaining device of the AFC in this embodiment obtains the frequency discriminating result of the multiple cells corresponding to the UE by using the foregoing module; and obtains the frequency relationship between the moving speed of the UE and the preset threshold and the frequency discriminating result of the multiple cells. AFC's frequency discrimination results. Changed in the prior art The moving speed of the UE is not considered, resulting in low communication stability and low data transmission performance. With the technical solution of the embodiment, the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, and the communication of the HSPA system can be effectively improved. Stability and data transfer performance; thus also greatly improving the UE experience.
图 5为本发明另一实施例提供的 AFC的鉴频结果获取装置的结构示 意图。 如图 5所示， 本实施例的 AFC的鉴频结果获取装置在上述图 4所 示实施例的基础上， 仅以还可以包括确定模块 12。 该确定模块 12用于确 定 UE的移动速度与预设阈值的大小关系。此时第二获取模块 11与确定模 块 12连接，第二获取模块 11用于根据确定模块 12确定的 UE的移动速度 与预设阈值的大小关系以及第一获取模块 10接收的多个小区的鉴频结果 获取 AFC的鉴频结果。  FIG. 5 is a schematic structural diagram of an apparatus for acquiring a frequency identification result of an AFC according to another embodiment of the present invention. As shown in FIG. 5, the frequency-determining result obtaining apparatus of the AFC of the present embodiment may further include the determining module 12 only on the basis of the embodiment shown in FIG. The determining module 12 is configured to determine a magnitude relationship between a moving speed of the UE and a preset threshold. At this time, the second obtaining module 11 is connected to the determining module 12, and the second obtaining module 11 is configured to determine the relationship between the moving speed of the UE and the preset threshold according to the determining module 12, and the plurality of cells received by the first acquiring module 10. The frequency result obtains the frequency discrimination result of AFC.
可选地， 在上述实施例的 AFC的鉴频结果获取装置的基础上， 当 UE 的移动速度大于等于预设阈值时， 第二获取模块 11 具体可以包括获取单 元 111和处理单元 112。  Optionally, the second obtaining module 11 may specifically include the acquiring unit 111 and the processing unit 112, when the moving speed of the UE is greater than or equal to a preset threshold, according to the method for obtaining the frequency of the AFC.
其中获取单元 111分别与确定模块 12与第一获取模块 10连接， 获取 单元 111用于当确定模块 12确定 UE的移动速度大于等于预设阈值时，从 第一获取模块 10接收的多个小区的鉴频结果中获取服务小区的鉴频结果。 处理单元 112与获取单元 111连接， 处理单元 112用于将获取单元 111获 取的服务小区的鉴频结果作为 AFC的鉴频结果。  The obtaining unit 111 is connected to the determining module 12 and the first acquiring module 10, respectively. The obtaining unit 111 is configured to: when the determining module 12 determines that the moving speed of the UE is greater than or equal to a preset threshold, the multiple cells received from the first acquiring module 10 The frequency discrimination result of the serving cell is obtained in the frequency discrimination result. The processing unit 112 is connected to the obtaining unit 111, and the processing unit 112 is configured to use the frequency discriminating result of the serving cell obtained by the obtaining unit 111 as the frequency discriminating result of the AFC.
可选地， 在上述实施例的 AFC 的鉴频结果获取装置的基础上， 当确 定模块 12确定 UE的移动速度小于预设阈值时， 第二获取模块 11不包括 获取单元 111和处理单元 112。此时第二获取模块 11与确定模块 12连接， 图 5中未示出。 第二获取模块 11具体用于当确定模块 12确定 UE的移动 速度小于预设阈值时， 将多个小区的鉴频结果合并作为 AFC的鉴频结果。  Optionally, the second obtaining module 11 does not include the obtaining unit 111 and the processing unit 112, when the determining module 12 determines that the moving speed of the UE is less than a preset threshold, on the basis of the discriminating result obtaining device of the AFC. At this time, the second acquisition module 11 is connected to the determination module 12, which is not shown in FIG. The second obtaining module 11 is specifically configured to combine the frequency discriminating results of the multiple cells as the frequency discriminating result of the AFC when the determining module 12 determines that the moving speed of the UE is less than a preset threshold.
可选地， 在上述实施例的 AFC 的鉴频结果获取装置的基础上， 本实 施例的 AFC的鉴频结果获取装置还可以包括发送模块 13。 该发送模块 13 用于向环路滤波器发送 AFC的鉴频结果， 以供环路滤波器对 AFC的鉴频 结果进行滤波， 并由处理模块根据滤波后的 AFC 的鉴频结果获取一电压 值，再由 VCXO根据该电压值产生对应的频率振荡信号， 该频率振荡信号 作为 UE正常工作的时钟源。 当确定模块 12确定 UE的移动速度大于等于 预设阈值时， 如图 5所示， 发送模块 13与处理单元 112连接， 发送模块 13用于向环路滤波器发送处理单元 112处理得到的 AFC的鉴频结果。 当 确定模块 12确定 UE的移动速度小于预设阈值时， 发送模块 13应该与第 二获取模块 11连接， 图中未示出， 此时发送模块 13用于向环路滤波器发 送第二获取模块 11处理得到的 AFC的鉴频结果。 Optionally, based on the frequency-acquisition result obtaining device of the AFC in the above embodiment, The frequency discrimination result obtaining device of the AFC of the embodiment may further include a transmitting module 13. The sending module 13 is configured to send a frequency discriminating result of the AFC to the loop filter, so that the loop filter filters the frequency discriminating result of the AFC, and the processing module obtains a voltage value according to the frequency discriminating result of the filtered AFC. Then, the VCXO generates a corresponding frequency oscillation signal according to the voltage value, and the frequency oscillation signal serves as a clock source for the UE to work normally. When the determining module 12 determines that the moving speed of the UE is greater than or equal to the preset threshold, as shown in FIG. 5, the sending module 13 is connected to the processing unit 112, and the sending module 13 is configured to send the AFC processed by the processing unit 112 to the loop filter. Frequency identification results. When the determining module 12 determines that the moving speed of the UE is less than the preset threshold, the sending module 13 should be connected to the second obtaining module 11, which is not shown in the figure. At this time, the sending module 13 is configured to send the second acquiring module to the loop filter. 11 Process the obtained frequency discrimination result of AFC.
需要说明的是， 本实施例中采用上述多个可选方案并行方式。 实际应 用中上述多个可选方案可以单独作为本发明的一个实施例。  It should be noted that, in this embodiment, the foregoing multiple parallel manners are adopted. The above various alternatives in the actual application may be individually used as an embodiment of the present invention.
本实施例的 AFC的鉴频结果获取装置， 通过采用上述模块实现 AFC 详细可以参考上述相关方法实施例的记载， 在此不再赘述。  For example, the method for obtaining the AFC of the AFC in this embodiment can be referred to the description of the foregoing related method embodiments by using the above-mentioned module, and details are not described herein again.
本实施例的 AFC 的鉴频结果获取装置， 通过采用上述模块能够改变 了现有技术中未考虑 UE的移动速度， 造成通信稳定性较低、 数据传输性 能较低。 采用本实施例的技术方案， 软切换过程中考虑到了 UE的移动速 度，并能够根据 UE的移动速度与预设阈值的大小关系获取准确的 AFC的 鉴频结果， 能够有效地提高 HSPA***的通信稳定性以及数据传输性能； 从而也能极大改善 UE的体验。  The discriminating result obtaining device of the AFC of the present embodiment can change the moving speed of the UE without considering the UE in the prior art by using the above module, resulting in low communication stability and low data transmission performance. With the technical solution of the embodiment, the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination result can be obtained according to the relationship between the moving speed of the UE and the preset threshold, and the communication of the HSPA system can be effectively improved. Stability and data transfer performance; thus also greatly improving the UE experience.
图 6为本发明实施例提供的 AFC设备的结构示意图。 如图 6所示， 本实施例的 AFC设备， 包括多个鉴频模块 20、 AFC的鉴频结果获取装置 FIG. 6 is a schematic structural diagram of an AFC device according to an embodiment of the present invention. As shown in FIG. 6, the AFC device of the embodiment includes a plurality of frequency discriminating modules 20 and a frequency discriminating result obtaining device of the AFC.
30、 环路滤波器 40、 处理模块 50和 VCXO60; 30. Loop filter 40, processing module 50 and VCXO60;
其中多个鉴频模块 20用于获取 UE的多个小区的鉴频结果；该多个小 区为 UE能够接收到数据对应的所有小区。 AFC的鉴频结果获取装置 30 与多个鉴频模块 20连接， AFC的鉴频结果获取装置 30用于根据多个鉴频 模块 20获取的多个小区的鉴频结果、以及 UE的移动速度与预设阈值的大 小关系获取 AFC的鉴频结果。 环路滤波器 40与 AFC的鉴频结果获取装 置 30连接， 环路滤波器 40用于对 AFC的鉴频结果获取装置 30获取的 AFC的鉴频结果进行滤波。 处理模块 50与环路滤波器 40连接， 处理模块 50用于根据环路滤波器 40滤波后的 AFC的鉴频结果获取一电压值。例如 该处理模块 50可以先将作为环路滤波器 40滤波后的 AFC的鉴频结果的 频率偏差与处理模块 50 中预存储的当前频率相加， 得到调整后的频率。 该预存储的当前频率为上一次调整后的频率。 处理模块 50还用于将调整 后的频率映射为一个电压值。 因此该处理模块 50可以采用一个累加器和 一个转换器集成。累加器用于实现将作为环路滤波器 40滤波后得到的 AFC 的鉴频结果的频率偏差与预存储的当前频率相加得到调整后的频率。 转换 器用于将累加器调整后的频率映射为一个电压值。 VCXO60与处理模块 50 连接， VCXO60根据处理模块 50获取的电压值产生对应的频率振荡信号， 该频率振荡信号作为 UE正常工作的时钟源。例如多个鉴频模块 20获取作 为鉴频结果的频率偏差时采用的预设的接收频率可以根据 VCXO60 产生 的该频率振荡信号产生。 The plurality of frequency discriminating modules 20 are configured to obtain the frequency discriminating result of the multiple cells of the UE; the multiple cells are all cells that the UE can receive corresponding to the data. AFC frequency discrimination result obtaining device 30 A plurality of frequency discriminating modules 20 are connected to each other, and the frequency discriminating result obtaining means 30 of the AFC is configured to obtain the AFC according to the frequency discriminating result of the plurality of cells acquired by the plurality of frequency discriminating modules 20 and the magnitude relationship between the moving speed of the UE and the preset threshold. The frequency of the results. The loop filter 40 is connected to the frequency discrimination result obtaining means 30 of the AFC, and the loop filter 40 is configured to filter the frequency discrimination result of the AFC acquired by the frequency discrimination result obtaining means 30 of the AFC. The processing module 50 is connected to the loop filter 40, and the processing module 50 is configured to obtain a voltage value according to the frequency discrimination result of the AFC filtered by the loop filter 40. For example, the processing module 50 may first add the frequency deviation of the frequency discrimination result of the AFC filtered by the loop filter 40 to the current frequency pre-stored in the processing module 50 to obtain the adjusted frequency. The pre-stored current frequency is the last adjusted frequency. The processing module 50 is further configured to map the adjusted frequency to a voltage value. Therefore, the processing module 50 can be integrated with an accumulator and a converter. The accumulator is configured to add the frequency deviation of the frequency discrimination result of the AFC obtained by filtering the loop filter 40 to the pre-stored current frequency to obtain the adjusted frequency. The converter is used to map the accumulator adjusted frequency to a voltage value. The VCXO 60 is connected to the processing module 50. The VCXO 60 generates a corresponding frequency oscillation signal according to the voltage value obtained by the processing module 50, and the frequency oscillation signal serves as a clock source for the UE to work normally. For example, the preset receiving frequency used when the plurality of frequency discriminating modules 20 acquire the frequency deviation as the frequency discriminating result may be generated according to the frequency oscillation signal generated by the VCXO 60.
可选地， 本实施例中的 AFC的鉴频结果获取装置 30可以采用上述图 4或者图 5所示实施例的 AFC的鉴频结果获取装置，详细可以采用上述图 2或者图 3所示实施例的 AFC的鉴频结果获取方法来实现 AFC的鉴频结 果的获取， 详细可以参考上述相关实施例的记载， 在此不再赘述。  Optionally, the frequency-detecting result obtaining device 30 of the AFC in this embodiment may adopt the frequency-collecting result obtaining device of the AFC in the embodiment shown in FIG. 4 or FIG. 5, and may be implemented in the foregoing FIG. 2 or FIG. For example, the method for obtaining the frequency of the AFC is used to obtain the result of the frequency discrimination of the AFC. For details, refer to the description of the related embodiments, and details are not described herein.
本实施例的 AFC设备， 通过采用上述多个鉴频模块 20、 AFC的鉴频 结果获取装置 30、环路滤波器 40、处理模块 50和 VCXO60能够改变了现 有技术中未考虑 UE的移动速度， 造成通信稳定性较低、 数据传输性能较 低。 采用本实施例的技术方案， 软切换过程中考虑到了 UE的移动速度， 并能够根据 UE的移动速度与预设阈值的大小关系获取准确的 AFC的鉴频 结果， 能够有效地提高 HSPA***的通信稳定性以及数据传输性能； 从而 也能极大改善 UE的体验。 The AFC device of this embodiment can change the moving speed of the UE without considering the UE in the prior art by using the plurality of frequency discriminating modules 20, the frequency discriminating result obtaining device 30, the loop filter 40, the processing module 50, and the VCXO 60 of the AFC. , resulting in low communication stability and low data transmission performance. With the technical solution of the embodiment, the moving speed of the UE is taken into consideration in the soft handover process, and the accurate AFC frequency discrimination can be obtained according to the relationship between the moving speed of the UE and the preset threshold. As a result, the communication stability and data transmission performance of the HSPA system can be effectively improved; thus, the UE experience can be greatly improved.
以上所描述的装置实施例仅仅是示意性的， 其中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， 或者也可以分布到至少两 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模块来实现 本实施例方案的目的。 本领域普通技术人员在不付出创造性的劳动的情况 下， 即可以理解并实施。  The device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to at least two network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.
最后应说明的是： 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。  It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

权 利 要 求 Rights request
1、 一种自动频率控制的鉴频结果获取方法， 其特征在于， 包括： 从多个鉴频模块中获取用户设备对应的多个小区的鉴频结果； 所述多 个小区为所述用户设备能够接收到数据对应的小区， 所述多个小区中包括 所述用户设备的服务小区；  A method for obtaining a frequency-determining result of an automatic frequency control, comprising: obtaining, from a plurality of frequency discriminating modules, a frequency discriminating result of a plurality of cells corresponding to the user equipment; wherein the plurality of cells are the user equipment Receiving a cell corresponding to the data, where the plurality of cells include a serving cell of the user equipment;
根据所述用户设备的移动速度与预设阈值的大小关系以及所述多个 小区的鉴频结果获取自动频率控制的鉴频结果。  And obtaining a frequency discriminating result of the automatic frequency control according to a magnitude relationship between a moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the plurality of cells.
2、 根据权利要求 1所述的方法， 其特征在于， 还包括：  2. The method according to claim 1, further comprising:
确定所述用户设备的移动速度与所述预设阈值的大小关系。  Determining a magnitude relationship between a moving speed of the user equipment and the preset threshold.
3、 根据权利要求 1 所述的方法， 其特征在于， 根据所述用户设备的 移动速度与预设阈值的大小关系以及所述多个小区的鉴频结果获取自动 频率控制的鉴频结果， 包括：  The method according to claim 1, wherein the frequency discrimination result of the automatic frequency control is obtained according to the magnitude relationship between the moving speed of the user equipment and a preset threshold, and the frequency discrimination result of the multiple cells, including :
当所述用户设备的移动速度大于等于所述预设阈值时， 从所述多个小 区的鉴频结果中获取所述服务小区的鉴频结果； 并将所述服务小区的鉴频 结果作为所述自动频率控制的鉴频结果。  When the moving speed of the user equipment is greater than or equal to the preset threshold, obtaining a frequency discriminating result of the serving cell from a frequency discriminating result of the multiple cells; and using a frequency discriminating result of the serving cell as a location The frequency discrimination result of the automatic frequency control is described.
4、 根据权利要求 1 所述的方法， 其特征在于， 根据所述用户设备的 移动速度与预设阈值的大小关系以及所述多个小区的鉴频结果获取自动 频率控制的鉴频结果， 包括：  The method according to claim 1, wherein the frequency identification result of the automatic frequency control is obtained according to the magnitude relationship between the moving speed of the user equipment and a preset threshold, and the frequency discrimination result of the multiple cells, including :
当所述用户设备的移动速度小于所述预设阈值时， 将所述多个小区的 鉴频结果合并作为所述自动频率控制的鉴频结果。  And when the moving speed of the user equipment is less than the preset threshold, combining the frequency discriminating results of the multiple cells as the frequency discriminating result of the automatic frequency control.
5、 根据权利要求 1-4任一所述的方法， 其特征在于， 还包括： 向环路滤波器发送所述自动频率控制的鉴频结果， 以供所述环路滤波 器对所述自动频率控制的鉴频结果进行滤波， 并由处理模块根据滤波后的 所述自动频率控制的鉴频结果获取一电压值， 再由压控晶体振荡器根据所 述电压值产生对应的频率振荡信号， 所述频率振荡信号作为所述用户设备 正常工作的时钟源。 The method according to any one of claims 1 to 4, further comprising: transmitting, to the loop filter, the frequency discrimination result of the automatic frequency control, for the loop filter to The frequency control result of the frequency control is filtered, and the processing module obtains a voltage value according to the filtered frequency detection result of the automatic frequency control, and then the voltage controlled crystal oscillator generates a corresponding frequency oscillation signal according to the voltage value, The frequency oscillation signal is used as a clock source for the user equipment to work normally.
6、 一种自动频率控制的鉴频结果获取装置， 其特征在于， 包括： 第一获取模块， 用于从多个鉴频模块中获取用户设备对应的多个小区 的鉴频结果； 所述多个小区为所述用户设备能够接收到数据对应的小区， 所述多个小区中包括所述用户设备的服务小区； An apparatus for obtaining a frequency-detecting result of an automatic frequency control, comprising: a first acquiring module, configured to acquire, from a plurality of frequency discriminating modules, a frequency discriminating result of a plurality of cells corresponding to the user equipment; The cell is a cell corresponding to the user equipment, and the plurality of cells include a serving cell of the user equipment;
第二获取模块， 用于根据所述用户设备的移动速度与预设阈值的大小 关系以及所述多个小区的鉴频结果获取自动频率控制的鉴频结果。  And a second obtaining module, configured to acquire a frequency discriminating result of the automatic frequency control according to a size relationship between the moving speed of the user equipment and a preset threshold, and a frequency discriminating result of the multiple cells.
7、 根据权利要求 6所述的装置， 其特征在于， 还包括：  7. The device according to claim 6, further comprising:
确定模块， 用于确定所述用户设备的移动速度与所述预设阈值的大小 关系。  And a determining module, configured to determine a size relationship between a moving speed of the user equipment and the preset threshold.
8、 根据权利要求 6所述的装置， 其特征在于， 所述第二获取模块， 包括：  The device according to claim 6, wherein the second acquiring module comprises:
获取单元， 用于当所述用户设备的移动速度大于等于所述预设阈值 时， 从所述多个小区的鉴频结果中获取所述服务小区的鉴频结果；  And an obtaining unit, configured to acquire, when the moving speed of the user equipment is greater than or equal to the preset threshold, a frequency discriminating result of the serving cell from a frequency discriminating result of the multiple cells;
处理单元， 用于将所述服务小区的鉴频结果作为所述自动频率控制的 鉴频结果。  And a processing unit, configured to use a frequency discriminating result of the serving cell as a frequency discriminating result of the automatic frequency control.
9、 根据权利要求 6所述的装置， 其特征在于， 所述第二获取模块， 具体用于当所述用户设备的移动速度小于所述预设阈值时， 将所述多个小 区的鉴频结果合并作为所述自动频率控制的鉴频结果。  The apparatus according to claim 6, wherein the second acquiring module is configured to: when the moving speed of the user equipment is less than the preset threshold, discriminate the plurality of cells The result is combined as a result of the frequency discrimination of the automatic frequency control.
10、 根据权利要求 6-9任一所述的装置， 其特征在于， 还包括： 发送模块， 用于向环路滤波器发送所述自动频率控制的鉴频结果， 以 供所述环路滤波器对所述自动频率控制的鉴频结果进行滤波， 并由处理模 块根据滤波后的所述自动频率控制的鉴频结果获取一电压值， 再由压控晶 体振荡器根据所述电压值产生对应的频率振荡信号， 所述频率振荡信号作 为所述用户设备正常工作的时钟源。  The device according to any one of claims 6-9, further comprising: a sending module, configured to send the frequency discriminating result of the automatic frequency control to the loop filter, for the loop filtering The device filters the frequency identification result of the automatic frequency control, and the processing module obtains a voltage value according to the filtered frequency detection result of the automatic frequency control, and then generates a corresponding value according to the voltage value by the voltage controlled crystal oscillator. The frequency oscillation signal is used as a clock source for the normal operation of the user equipment.
1 1、 一种自动频率控制设备， 其特征在于， 包括多个鉴频模块、 自动 频率控制的鉴频结果获取装置、环路滤波器、处理模块和压控晶体振荡器； 所述多个鉴频模块， 用于获取用户设备对应的多个小区的鉴频结果； 所述多个小区为所述用户设备能够接收到数据对应的小区； 所述多个小区 中包括所述用户设备的服务小区； 1 1 . An automatic frequency control device, comprising: a plurality of frequency discrimination modules, a frequency acquisition result acquisition device for automatic frequency control, a loop filter, a processing module, and a voltage controlled crystal oscillator; The plurality of frequency discriminating modules are configured to obtain a frequency discriminating result of the multiple cells corresponding to the user equipment; the multiple cells are the cells that the user equipment can receive the data; the multiple cells include the a serving cell of the user equipment;
所述自动频率控制的鉴频结果获取装置， 用于根据所述多个鉴频模块 获取到的所述多个小区的鉴频结果、 以及所述用户设备的移动速度与预设 阈值的大小关系获取自动频率控制的鉴频结果；  The frequency-frequency result obtaining device of the automatic frequency control is configured to determine, according to the frequency discriminating result of the plurality of cells acquired by the plurality of frequency discriminating modules, a relationship between a moving speed of the user equipment and a preset threshold Obtaining the frequency identification result of the automatic frequency control;
所述环路滤波器， 用于对所述自动频率控制的鉴频结果获取装置获取 的所述自动频率控制的鉴频结果进行滤波；  The loop filter is configured to filter the frequency identification result of the automatic frequency control acquired by the frequency-determining result obtaining device of the automatic frequency control;
所述处理模块， 用于根据所述环路滤波器滤波后的所述自动频率控制 的鉴频结果获取一电压值；  The processing module is configured to acquire a voltage value according to the frequency discriminating result of the automatic frequency control filtered by the loop filter;
所述压控晶体振荡器， 用于根据所述处理模块获取的所述电压值产生 对应的频率振荡信号， 所述频率振荡信号作为所述用户设备正常工作的时 钟源。  The voltage controlled crystal oscillator is configured to generate a corresponding frequency oscillation signal according to the voltage value obtained by the processing module, where the frequency oscillation signal is used as a clock source for the user equipment to work normally.
PCT/CN2011/079094 2011-08-30 2011-08-30 Method, device and apparatus for obtaining frequency discrimination result of auto frequency control WO2012119426A1 (en)

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