WO2012012942A1 - 一种基站子系统获知移动终端能力的方法和装置 - Google Patents

一种基站子系统获知移动终端能力的方法和装置 Download PDF

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Publication number
WO2012012942A1
WO2012012942A1 PCT/CN2010/075523 CN2010075523W WO2012012942A1 WO 2012012942 A1 WO2012012942 A1 WO 2012012942A1 CN 2010075523 W CN2010075523 W CN 2010075523W WO 2012012942 A1 WO2012012942 A1 WO 2012012942A1
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WIPO (PCT)
Prior art keywords
mobile terminal
interference
received signal
capability
threshold
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PCT/CN2010/075523
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English (en)
French (fr)
Inventor
江宁
柯昌伟
王欣晖
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to PCT/CN2010/075523 priority Critical patent/WO2012012942A1/zh
Publication of WO2012012942A1 publication Critical patent/WO2012012942A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0628Diversity capabilities

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for implementing a capability of a base station subsystem to learn a mobile terminal in a GSM (Global System for Mobile Communications) system.
  • GSM Global System for Mobile Communications
  • the network architecture of the GSM system is shown in Figure 1. It includes the core network, BSC (Base Station Controller) and BTS (Base Station).
  • BSC Base Station Controller
  • BTS Base Station
  • the BSC and BTS can be collectively referred to as the base station subsystem (BSS).
  • Base Station Subsystem Base Station Subsystem
  • the interface between the core network and the BSC is called the A interface
  • the interface between the BSC and the BTS is called the Abis interface
  • the interface between the BTS and the mobile terminal is called the Um interface
  • the core network, the BSC, and the BTS Work together to provide complete mobile voice service capabilities to mobile terminals.
  • GSM wireless networks are covered and served by several base stations. GSM commercial wireless networks often require dozens or even hundreds of base stations to complete coverage and meet traffic demands.
  • the GSM network can use very limited frequency resources.
  • the GSM system uses a cellular structure to resolve the contradiction between the demand for traffic and the limited frequency resources of the mobile communication system.
  • the frequency reuse method brought by the cellular structure inevitably introduces a considerable amount of co-channel interference and adjacent-channel interference to the GSM network, and the interference levels of these co-channel interference and adjacent-channel interference are closely related to the frequency reuse. More severe, making the GSM network a network with limited interference.
  • GSM and HSPA+ evolved high-speed packet access
  • LTE Long Term Evolution
  • HSPA+ or LTE occupies most of the spectrum resources
  • GSM occupies a small portion of spectrum resources, but the number of GSM users does not decrease drastically. This requires the GSM network to provide voice services to these users with relatively less spectrum resources.
  • a more compact frequency reuse method for the GSM system is one of the ways to solve the spectrum resource dilemma, but obviously, this Closer frequency Multiplexing also inevitably brings more co-channel interference and adjacent-channel interference, which also makes the GSM network more into a network with limited interference.
  • the emergence of single-antenna interference suppression cancellation technology enables mobile terminals to take advantage of this technology in eliminating interference and achieve good voice processing performance in interference-limited environments.
  • some mobile terminals supporting single-antenna interference suppression cancellation technology can still achieve good voice processing performance in the case of co-channel interference of 0 dB or 3 dB.
  • the single antenna interference suppression cancellation technology enables the base station subsystem to allocate some relatively large interference and poor quality channels to mobile terminals supporting single antenna interference suppression cancellation technology, instead of being allocated to traditional mobile terminals that do not support the technology. Through such processing, it is possible to obtain good overall network performance in an environment where interference is limited.
  • the mobile terminal reports the support capability of the single antenna interference suppression cancellation of the mobile terminal through the interface with the base station subsystem, but if the mobile terminal supporting the single antenna interference suppression cancellation is used for some reasons, such as software design defects, there is no When the support capability is reported, the base station subsystem cannot know the support capability of the single antenna interference suppression cancellation of the mobile terminal.
  • the technical problem to be solved by the present invention is to provide a method and apparatus for a base station subsystem to learn the capabilities of a mobile terminal, which can actively detect a mobile terminal without reporting the single antenna interference suppression cancellation support capability of the mobile terminal.
  • Single antenna interference suppression eliminates the support capability.
  • the present invention provides a method for a base station subsystem to learn the capabilities of a mobile terminal, including: the base station subsystem applies one or more rounds of a specific type of downlink frame of a mobile terminal to be tested for single antenna interference suppression cancellation support capability.
  • the method further includes: the base station subsystem determining the a mobile terminal to be tested for single antenna interference suppression cancellation support capability; The base station subsystem determines the mobile terminal to be tested for single antenna interference suppression cancellation support capability according to one or more of the following information:
  • a parameter that reflects the interference handling capability of the mobile terminal in the measurement report sent by the mobile terminal (1) A parameter that reflects the interference handling capability of the mobile terminal in the measurement report sent by the mobile terminal;
  • the specific type of downlink frame comprises a voice channel (TCH) frame and/or a slow associated control channel (SACCH) frame.
  • TCH voice channel
  • SACCH slow associated control channel
  • the base station subsystem will be the same After the frequency interference signal and the measured signal are respectively subjected to Gaussian filtering minimum frequency shift keying (GMSK) modulation, the modulated co-channel interference signal and the measured signal are vector-added to form a downlink signal and sent to the mobile terminal;
  • the co-channel interference signal is an interference signal having the same phase as the signal to be measured, or an interference signal having a phase difference of ⁇ /2 from the measured signal; or the base station subsystem directly performs the same-frequency interference signal and the measured signal.
  • the modulated downlink signal is sent to the mobile terminal.
  • the base station subsystem applies one or more rounds of co-channel interference to a specific type of downlink frame of the mobile terminal to be tested for the single antenna interference suppression cancellation support capability, and analyzes the mobile terminal reporting during the application of the same frequency interference period.
  • the receiving signal parameter in the measurement report, the step of determining whether the mobile terminal has the single antenna interference suppression cancellation support capability comprises: the specific type of the mobile terminal of the base station subsystem to the single antenna interference suppression cancellation support capability to be tested
  • the downlink frame applies a round of co-channel interference, analyzes the received signal parameters in the measurement report reported by the mobile terminal during the application of the same-frequency interference, and determines whether to continue to apply the same-frequency interference based on the analysis result, and if it is determined to continue to apply the same-frequency interference, Then, co-channel interference is continuously applied to the specific type of downlink frame of the mobile terminal until it is determined whether the mobile terminal has single-antenna interference suppression cancellation support capability.
  • the base station subsystem applies a round of co-channel interference to a specific type of downlink frame of the mobile terminal, and analyzes the receiving in the measurement report reported by the mobile terminal during the application of the same-frequency interference.
  • a signal parameter in the step of determining whether the mobile terminal has a single antenna interference suppression cancellation support capability,
  • the base station subsystem determines that the mobile terminal has a single antenna interference suppression cancellation support capability.
  • the base station subsystem applies multiple rounds of co-channel interference to a specific type of downlink frame of the mobile terminal, and analyzes a received signal parameter in a measurement report reported by the mobile terminal during co-channel interference, and determines the Whether the mobile terminal has the single antenna interference suppression cancellation support capability,
  • the base station subsystem determines that the mobile terminal has a single antenna interference suppression cancellation support capability; or, if each round applies the same
  • the analysis result obtained by the frequency interference is better than a preset threshold threshold, and the base station subsystem determines that the mobile terminal has a single antenna interference suppression cancellation support capability.
  • the received signal parameter is a received signal quality parameter, or is a received signal quality parameter and a received signal strength parameter; and the step of analyzing the received signal parameter in the measurement report reported by the mobile terminal during the intra-frequency interference is included : averaging the received signal quality parameter values in the N consecutive recent measurement reports, and determining whether the obtained result is smaller than the first threshold threshold; or, for N consecutively recent, the received signal quality parameter values are smaller than the first threshold.
  • the value of the received signal quality parameter in the measurement report of the value is determined by the standard deviation, and the obtained result is judged to be smaller than the second threshold threshold; or, the quality of the received signal in the measurement report containing the received signal strength parameter value smaller than the third threshold threshold value
  • the parameter value is averaged to determine whether the obtained result is smaller than the first threshold threshold; or, the standard deviation is obtained for the received signal quality parameter value in the measurement report containing the received signal strength parameter value smaller than the third threshold threshold value, and the obtained result is determined.
  • the present invention provides an apparatus for learning the capabilities of a mobile terminal, including a capability learning unit, wherein: the capability learning unit is configured to: a specific type of downlink of a mobile terminal to be tested for single antenna interference suppression cancellation support capability
  • the frame applies one or more rounds of co-channel interference, analyzes the received signal parameters in the measurement report reported by the mobile terminal during the application of the same-frequency interference, and determines whether the mobile terminal has the single-antenna interference suppression cancellation support capability.
  • the apparatus further includes a test target determining unit, wherein: the test target determining unit is configured to: determine a mobile terminal to be tested for single antenna interference suppression cancellation support capability according to one or more of the following information, and notify The capability learning unit: (1) a parameter that reflects the interference processing capability of the mobile terminal in the measurement report sent by the mobile terminal; (2) a measurement result for the uplink; (3) a traffic load.
  • the specific type of downlink frame comprises a voice channel (TCH) frame and/or a slow associated control channel (SACCH) frame.
  • the capability learning unit is configured to: perform Gaussian Filtering Minimum Frequency Shift Keying (GMSK) modulation on the same frequency and the signal to be measured, and then combine the modulated co-channel interference signal with the measured
  • GMSK Gaussian Filtering Minimum Frequency Shift Keying
  • the signals are vector-added to form a downlink signal, which is sent to the mobile terminal, and the same-frequency interference signal is an interference signal having the same phase as the measured signal, or an interference signal having a phase difference of ⁇ /2 from the measured signal; or After the same-frequency interference signal and the measured signal are directly subjected to adaptive quadrature phase shift keying (QPSK) modulation, the modulated downlink signal is sent to the mobile terminal.
  • QPSK adaptive quadrature phase shift keying
  • the capability learning unit is configured to: apply a round of co-channel interference to a specific type of downlink frame of the mobile terminal to be tested for single antenna interference suppression cancellation support, and analyze the mobile terminal during the application of co-channel interference Receiving signal parameters in the reported measurement report, and determining whether to continue to apply co-channel interference based on the analysis result, and if it is determined to continue to apply co-channel interference, continuing to apply co-channel interference to a specific type of downlink frame of the mobile terminal until judging Whether the mobile terminal has single antenna interference suppression cancellation support capability.
  • the capability learning unit is configured to: after applying a round of co-channel interference to a specific type of downlink frame of the mobile terminal, when an analysis result obtained by applying the same frequency interference is better than a preset threshold threshold, Determining that the mobile terminal has a single antenna interference suppression cancellation support capability; or After applying multiple rounds of co-channel interference to a specific type of downlink frame of the mobile terminal, if the analysis result obtained by applying the same-frequency interference in one round is better than a preset threshold threshold, determining that the mobile terminal has a single antenna The interference suppression cancellation support capability; or, after applying multiple rounds of the same frequency interference to the specific type of downlink frame of the mobile terminal, if the analysis result obtained by applying the same frequency interference in each round is better than the preset threshold threshold, Then, the mobile terminal is determined to have a single antenna interference suppression cancellation support capability.
  • the received signal parameter is a received signal quality parameter, or is a received signal quality parameter and a received signal strength parameter;
  • the capability learning unit is configured to: measure a measurement report reported by the mobile terminal during the application of the same frequency interference
  • receives signal parameters average the received signal quality parameter values in N consecutive recent measurement reports, and determine whether the obtained result is smaller than the first threshold threshold; or, for N consecutively recent, received signal quality parameters
  • the value of the received signal quality parameter in the measurement report whose value is less than the first threshold value is used to determine the standard deviation, and the result is determined to be less than the second threshold threshold; or, the measurement containing the received signal strength parameter value is less than the third threshold threshold
  • the average value of the received signal quality parameter in the report is averaged to determine whether the obtained result is less than the first threshold threshold; or, the standard of the received signal quality parameter in the measurement report containing the received signal strength parameter value less than the third threshold threshold value Poor, judge whether the result is less than the second threshold threshold;
  • N is an integer.
  • the invention can actively detect the support capability of the single antenna interference suppression cancellation of the mobile terminal without the mobile terminal not reporting its single antenna interference suppression cancellation support capability, thereby effectively using the single antenna interference suppression cancellation technology to enable GSM
  • the network still has good overall network performance in an environment with limited interference.
  • FIG. 1 is a network architecture of a conventional GSM system
  • FIG. 2 is a flow chart of a base station subsystem actively learning the capabilities of a mobile terminal by applying co-channel interference to a TCH frame according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of the present invention
  • 4 is a schematic diagram of a 26 multiframe that applies co-channel interference to a TCH/H of a mobile terminal in a first subchannel according to Embodiment 1 of the present invention
  • FIG. 5 is a base station subsystem according to Embodiment 2 of the present invention, which applies a SACCH frame.
  • FIG. 1 is a network architecture of a conventional GSM system
  • FIG. 2 is a flow chart of a base station subsystem actively learning the capabilities of a mobile terminal by applying co-channel interference to a TCH frame according to Embodiment 1 of the present
  • FIG. 6 is a schematic diagram of a 26 multiframe of applying the same frequency interference to the SACCH at the full rate of a mobile terminal according to the second embodiment of the present invention
  • FIG. 7 is a schematic diagram of the present invention.
  • 2 is a schematic diagram of a 26 multiframe that applies co-channel interference to a SACCH of a mobile terminal half rate second subchannel
  • FIG. 8 is a base station subsystem according to Embodiment 3 of the present invention, which jointly applies co-channel interference to a TCH frame and a SACCH frame.
  • FIG. 9 is a schematic diagram of a 26 multiframe of applying the same frequency interference to both TCH/F and SACCH of a mobile terminal according to Embodiment 3 of the present invention;
  • FIG. 10 is a third embodiment of the present invention.
  • FIG. 11 is a device for knowing the capabilities of the mobile terminal according to an embodiment of the present invention; Intentions.
  • the base station subsystem analyzes the measurement report reported by the mobile terminal, and applies one or more rounds of detection to the specific type of downlink frame of the mobile terminal with the same frequency interference and back feedback. The analysis of the measurement is performed to obtain the support capability of the single antenna interference suppression cancellation of the mobile terminal.
  • the base station subsystem actively learns that the single antenna interference suppression cancellation support capability of the mobile terminal may include two phases: In the first phase, the base station subsystem determines the mobile terminal to be tested for the single antenna interference suppression cancellation support capability; that is, the base station subsystem A mobile terminal that needs to be aware of the single antenna interference suppression cancellation support capability is determined.
  • the mobile terminal interference processing can be embodied in the measurement report sent by the mobile terminal.
  • Capability parameters such as received signal quality parameters and/or received signal strength parameters, to determine the mobile terminal; or, the base station subsystem may also determine some or some of the services served by certain carrier frequencies or cells based on measurements of the uplink.
  • the mobile terminal needs to perform single-antenna interference suppression cancellation support capability; or, the base station subsystem may determine that one or some mobile terminals served by certain carrier frequencies or cells need to perform single-antenna interference suppression cancellation support based on traffic load.
  • the step of determining, by the base station subsystem at this stage, the mobile terminal that determines the single antenna interference suppression cancellation support capability to be tested may be omitted.
  • the base station subsystem applies one or more rounds of co-channel interference to the specific type of downlink frame of the mobile terminal to be tested for the single-antenna interference suppression cancellation support capability, and analyzes the reported by the mobile terminal during the application of the same-frequency interference.
  • the received signal parameter in the measurement report determines whether the mobile terminal has single antenna interference suppression cancellation support capability.
  • the specific type of downlink frame includes a TCH (Voice Channel) frame and/or a SACCH (Slow Associated Control Channel) frame, that is, it may be that only the same frequency interference is applied to the TCH frame, or only the same frequency is applied to the SACCH frame. Interference, or, co-channel interference is applied to the TCH frame and the SACCH frame.
  • the received signal parameter may be only a received signal quality parameter, or may be a related parameter such as a received signal quality parameter and a received signal strength parameter.
  • the manner of applying one or more rounds of co-channel interference may be: applying a round of co-channel interference to a specific type of downlink frame, and the power strength and duration of the applied co-channel interference may be according to the base station subsystem.
  • the policy is set, and then analyzes the received signal quality, the received signal strength and other related parameters in the one or more measurement reports reported by the mobile terminal during the application of the co-channel interference, for example, whether the parameters are better than the set threshold threshold, the base station Based on the analysis results, the system decides whether to continue to apply co-channel interference.
  • the power intensity and duration of applying the co-channel interference may be set according to the strategy of the base station subsystem, which may be equivalent to the corresponding setting of the previous round, or may be different. This.
  • the base station subsystem analyzes the received signal quality in the one or more measurement reports reported by the mobile terminal during the application of the round of co-channel interference, and receives Related parameters such as signal strength, for example, whether these parameters are better than the set threshold threshold, the threshold threshold may be equivalent to the corresponding setting of the previous round, or may be different.
  • the base station subsystem determines whether to continue to apply co-channel interference based on the analysis result. By analogy, until the base station subsystem considers that the single-antenna interference suppression cancellation capability of the mobile terminal can be obtained, the process of the base station subsystem actively learning the single-antenna 4 suppression suppression capability of the mobile terminal is completed.
  • the base station subsystem can analyze the received signal quality, the received signal strength and other related parameters in the measurement report reported by the mobile terminal after the same-frequency interference, and combine various preset threshold thresholds preset by the base station subsystem.
  • the base station subsystem can analyze the received signal quality, the received signal strength and other related parameters in the measurement report reported by the mobile terminal after the same-frequency interference, and combine various preset threshold thresholds preset by the base station subsystem.
  • the specific value of the determination of the single antenna interference suppression cancellation capability of the specific mobile terminal such as applying several rounds of co-channel interference, the power intensity and duration of the applied co-channel interference, the threshold value for determining the threshold, etc. It is implemented according to the strategy of the base station subsystem.
  • the base station subsystem determines whether the mobile terminal has single antenna interference suppression cancellation support capability by applying only one round of co-channel interference
  • the analysis result obtained by applying the same frequency interference is better than a preset threshold threshold.
  • the base station subsystem determines that the mobile terminal has single antenna interference suppression cancellation support capability
  • the base station subsystem determines whether the mobile terminal has single antenna interference suppression cancellation support capability by applying multiple rounds of co-channel interference
  • the implementation manner for example, the maximum possible mode, as long as the analysis result obtained by applying the same frequency interference in one round is better than the preset threshold threshold, that is, the mobile terminal has the single antenna interference suppression cancellation support capability; or
  • the strongest limiting principle that is, the analysis result obtained by applying the same-frequency interference in each round is better than the preset threshold threshold, and it is judged that the mobile terminal has the single-antenna interference suppression elimination support capability.
  • the modulation method of the co-channel interference applied by the base station subsystem may be various.
  • the co-channel interference is an interference signal having the same phase as the signal to be measured, and the same-frequency interference signal and the measured signal are respectively GMSK ( Gaussian-Filtered Minimum Shift Keying, after the modulation, the two modulated signals are vector-added to form a downlink signal and sent to the mobile terminal; or a phase difference from the measured signal, pie/ 2 (ie ⁇ /2 ) interference signal, the same frequency interference signal and the measured signal are respectively GMSK modulated, then the two modulated signals are vector added to form a downlink signal and sent to the mobile terminal;
  • an adaptive QPSK Quadature Phase Shift Keying
  • the modulated downlink signal is then sent to the mobile terminal.
  • Adaptive QPSK modulation can use the prior art in the prior literature, such as the method provided by 3GPP TS 45.004.
  • the same frequency interference signal and the measured signal use different training sequences.
  • the BTS in the base station subsystem may separately complete the process of actively obtaining the single antenna interference suppression cancellation support capability of the mobile terminal, or the BSC and the BTS may jointly complete the single antenna interference suppression cancellation of the mobile terminal. The process of supporting capabilities.
  • the mobile terminal that needs to perform the single-antenna interference suppression cancellation support capability can be determined by the BTS, or the mobile terminal that needs to learn the single-antenna interference suppression cancellation support capability can be determined by the BSC, and then the BTS is notified; Applying one or more rounds of co-channel interference to a specific type of downlink frame of the interference suppression cancellation-capable mobile terminal may be performed by the BTS, and analyzing the received signal parameters in the measurement report reported by the mobile terminal during the application of the same-frequency interference, determining the location Whether the mobile terminal has the single antenna interference suppression cancellation support capability may be completed by the BTS or the BSC, or may be jointly performed by the BTS and the BSC, and the present invention does not specifically limit this.
  • the mobile terminal is in the dedicated mode, and the base station subsystem actively learns the single antenna interference suppression cancellation capability of the mobile terminal by applying the same-frequency interference to the TCH frame, and the steps include: Step 201, the base station subsystem
  • the mobile terminal that needs to perform the single antenna interference suppression cancellation support capability is determined by the relevant parameters in the measurement report sent by the mobile terminal that reflect the interference processing capability of the mobile terminal, such as the received signal quality parameter.
  • the base station subsystem may determine the mobile terminal by using various parameters, such as a received signal quality parameter and/or a received signal strength parameter, in the measurement report sent by the mobile terminal, which may be reflected by the mobile terminal interference processing capability; or the base station The system determines that one or some mobile terminals served by certain carrier frequencies or cells need to perform single-antenna interference suppression cancellation support capability based on the measurement results of the uplink; or the base station subsystem determines that the payload is based on the traffic load.
  • One or some mobile terminals serving frequency or cell services need to be aware of the single antenna interference suppression cancellation support capability.
  • the phase of the mobile terminal interference processing capability in the measurement report transmitted by the mobile terminal is used.
  • the off parameters determine the mobile terminal that needs to be aware of the single antenna interference suppression cancellation support capability.
  • Step 201 is an optional step, and the mobile terminal that needs to perform the single antenna interference suppression cancellation support capability may be the default one or some mobile terminals.
  • the modulation method of the co-channel interference applied by the base station subsystem may be various.
  • the co-channel interference may be embodied as an interference signal with the same phase as the signal to be measured modulated by GMSK, or a phase difference from the measured signal.
  • the /2 GMSK modulated signal can be embodied as an adaptive QPSK modulated signal composed of the measured signal.
  • the power of the same-frequency interference can be various, such as the power of the same-frequency interference and the measured signal, or the same-frequency interference is higher than the measured signal by l-2dB.
  • the downlink TCH frame of the mobile terminal is applied with a same-frequency interference with the QPSK modulation of the measured signal, and the power of the same-frequency interference is equal to the measured signal power.
  • Step 203 The base station subsystem applies the same frequency to the TCH frame belonging to the same mobile terminal in each of the 26 multiframes in units of 26 multiframes, and the same frequency trunk 4 is continuously applied to 4 consecutive frames. 26 on the multiframe.
  • the co-channel interference is applied to 24 TCH frames in each of the 26 multiframes, and the co-channel interference is continuously applied to 4 consecutive 26 multiframes;
  • the co-channel interference is applied to 12 TCH frames belonging to the first mobile terminal in each of the 26 multiframes, and the co-channel interference is continuously applied to 4 consecutive 26 multiframes,
  • the co-channel interference is applied to 12 TCH frames belonging to the second mobile terminal in each of the 26 multiframes, and the co-channel interference is continuously applied to 4 consecutive 26 multiframes.
  • the continuous mode of co-channel interference can also have a variety of options, such as the application of four consecutive 26 multiframes, or two consecutive 6 or sixteen multiframes.
  • the co-channel interference is applied to 24 TCH frames in each of the 26 multiframes of the mobile terminal, and the co-channel interference is continuously applied to 4 consecutive 26 multiframes, as shown in the figure.
  • 3 is a schematic diagram of the base station subsystem applying interference to the TCH frame for the full rate voice channel. As shown in Figure 4, for a half rate voice channel, the base station subsystem applies the TCH frame to the dry Schematic diagram of the disturbance.
  • the received signal quality parameter value in the measurement report of the threshold value TO (for example, less than 2) is set to the standard deviation.
  • the first method is to obtain the average value of the received signal quality parameter values in the N consecutive recent measurement reports; the second method is through N consecutive recent The received signal quality parameter value in the measurement report whose received signal quality is less than a specific threshold value TO (for example, less than 2) is used to obtain a standard deviation; or, the third method is combined with the received signal quality in the downlink measurement report, and the received signal strength is together Obtaining, for example, only the average value of the received signal quality parameter value in the measurement report containing the received signal strength less than a certain threshold value T2; the fourth method is to combine the received signal quality in the downlink measurement report, and the received signal strength is acquired together, For example, the standard deviation is only obtained for the received signal quality parameter value in the measurement report containing the received signal strength less than a certain threshold value T2.
  • a specific threshold value TO for example, less than 2
  • the parameter value is the standard deviation.
  • Step 205 The base station subsystem compares the result of step 204 with a preset threshold threshold. If the result of step 204 is better than a preset threshold, the interference suppression capability of the terminal is considered to be strong. It may be a mobile terminal that supports single-antenna interference suppression cancellation, otherwise it is not considered to be a mobile terminal that supports single-antenna interference suppression cancellation.
  • the method can be used as follows: Method 1, if the average value of the received signal quality parameter values in the N consecutive recent measurement reports is less than a specific threshold value TO (for example, less than 2), the interference suppression capability of the terminal is considered. Strong, may be a mobile terminal supporting single-antenna interference suppression cancellation; Method 2, if N consecutively recent, the received signal quality is less than a specific set threshold value T0 (such as less than 2) of the received signal quality parameter value If the standard deviation is less than the threshold value T1 (for example, less than 0.05), the interference suppression capability of the terminal is considered to be strong, which may be a mobile terminal supporting single-antenna interference suppression cancellation; or, method 3, if the received signal strength is less than a certain The value of the received signal quality parameter in the measurement report of the threshold value T2 (for example, less than -65dBm) is smaller than the threshold threshold T0 (for example, less than 2), or, in the fourth method, if the received signal strength is less than a certain gate If the standard deviation of
  • the base station subsystem may have multiple processing manners, for example, in the first method, the process of actively learning the capability of the mobile terminal is terminated, and step 206 is performed; or, method two
  • the base station subsystem decides to continue to apply another round of co-channel interference based on the result.
  • the power intensity and duration of applying the co-channel interference may be set according to the strategy of the base station subsystem, which may be equivalent to the corresponding setting of the previous round. It can also be different from this.
  • the base station subsystem analyzes the received signal quality, the received signal strength and other related parameters in the one or more measurement reports reported by the mobile terminal during the round of the same frequency interference, for example, whether the parameters are better than a set threshold threshold , the threshold threshold can be equal to the corresponding setting of the previous round, or it can be different.
  • step 206 is performed.
  • the processing of multiple determination results after applying multiple rounds of co-channel interference can be implemented in various ways according to the specific application environment and implementation characteristics according to the base station subsystem. For example, the maximum possible mode is adopted.
  • the mobile terminal In the judgment result after applying the same-frequency interference in each round, as long as the result is that the mobile terminal has the single-antenna interference suppression cancellation capability, the mobile terminal is considered to have single-antenna interference suppression cancellation. Capability; or use the strongest limit principle.
  • the base station subsystem In each round of judgments after applying the same-frequency interference, only the result of each judgment considers that the mobile terminal has single-antenna interference suppression cancellation capability, and the mobile terminal is considered to have Single antenna interference suppression cancellation capability.
  • the base station subsystem For the judgment result of the mobile terminal that does not support the single antenna interference suppression cancellation, the base station subsystem considers that the process of actively learning the capability of the mobile terminal ends, and performs step 206.
  • Step 206 The process in which the base station subsystem actively learns the single antenna interference suppression cancellation capability of the mobile terminal ends.
  • the mobile terminal is in the dedicated mode, and the base station subsystem actively learns the single-antenna interference suppression cancellation capability of the mobile terminal by applying the same-frequency interference to the SACCH frame.
  • Step 301 The base station subsystem determines, by using a related parameter that reflects the interference handling capability of the mobile terminal in the measurement report sent by the mobile terminal, such as a received signal quality parameter, to determine a mobile terminal that needs to learn the single antenna interference suppression cancellation support capability.
  • the base station subsystem may determine the mobile terminal by using various parameters, such as a received signal quality parameter and/or a received signal strength parameter, in the measurement report sent by the mobile terminal, which may be reflected by the mobile terminal interference processing capability; or the base station The system determines that one or some mobile terminals served by certain carrier frequencies or cells need to perform single-antenna interference suppression cancellation support capability based on the measurement results of the uplink; or the base station subsystem determines that the payload is based on the traffic load.
  • One or some mobile terminals serving frequency or cell services need to be aware of the single antenna interference suppression cancellation support capability.
  • the mobile terminal that needs to perform the single-antenna interference suppression cancellation support capability is determined by using relevant parameters in the measurement report transmitted by the mobile terminal that reflect the interference processing capability of the mobile terminal, such as the received signal quality parameter.
  • Step 301 is an optional step, and the mobile terminal that needs to perform the single antenna interference suppression cancellation support capability may be the default one or some mobile terminals.
  • Step 302 The base station subsystem applies a co-frequency interference to the downlink SACCH frame of the mobile terminal that is determined to be required to perform single-antenna interference suppression cancellation support capability, and performs adaptive QPSK modulation on the measured signal, where the power of the same-frequency interference is equal to Measure signal power.
  • the modulation method of the co-channel interference applied by the base station subsystem may be various.
  • the co-channel interference may be embodied as an interference signal with the same phase as the signal to be measured modulated by GMSK, or a phase difference from the measured signal.
  • the /2 GMSK modulated signal can be embodied as an adaptive QPSK modulated signal composed of the measured signal.
  • the power of the same-frequency interference can be various, such as the power of the same-frequency interference and the measured signal, or the same-frequency interference is higher than the measured signal by l-2dB.
  • the same-frequency interference with the QPSK modulation of the measured signal is applied to the downlink SACCH frame of the mobile terminal, and the power of the same-frequency interference is equal to the measured signal power.
  • Step 303 The base station subsystem applies the co-channel interference to the SACCH frame belonging to the same mobile terminal in each of the 26 multiframes in units of 26 multiframes, and the co-channel interference is continuously applied to the four consecutive 26 multiframes.
  • the co-channel interference is applied to one SACCH frame in each of the 26 multiframes, and the co-channel interference is continuously applied to four consecutive 26 multiframes;
  • the co-channel interference is applied to one SACCH frame belonging to the first mobile terminal in each of the 26 multiframes, and the co-channel interference is continuously applied to 4 consecutive 26 multiframes, for each The same frequency interference is applied to 1 SACCH frame belonging to the second mobile terminal in the 26 multiframe, and the co-channel interference is continuously applied to 4 consecutive 26 multiframes.
  • the continuous mode of co-channel interference can also have various options, for example, it can be applied to consecutive 4 26 multiframes, or to 2 consecutive 6 or 6 26 multiframes.
  • the co-channel interference is applied to one SACCH frame in each of the 26 multiframes of the mobile terminal, and the co-channel interference is continuously applied to four consecutive 26 multiframes, as shown in FIG. 6.
  • Shown is a schematic diagram of the base station subsystem applying interference to the SACCH frame for a full rate voice channel.
  • Figure 7 is a schematic diagram of the base station subsystem applying interference to the SACCH frame for a half rate voice channel.
  • T3 T3
  • the first method is to obtain the average value of the received signal quality parameter values in the N consecutive recent measurement reports; the second method is through N consecutive recent The received signal quality parameter value in the measurement report whose received signal quality is less than a specific threshold value T3 (for example, less than 3) is used to obtain a standard deviation; or, the third method is combined with the received signal quality in the downlink measurement report, and the received signal strength is together Obtaining, for example, only the average value of the received signal quality parameter value in the measurement report containing the received signal strength less than a certain threshold value T4; the fourth method is to combine the received signal quality and the received signal strength together in the downlink measurement report, For example, the standard deviation is only obtained for the received signal quality parameter value in the measurement report containing the received signal strength less than a certain threshold value T4.
  • T3 for example, less than 3
  • the parameter value is the standard deviation.
  • Step 305 The base station subsystem compares the result of step 304 with a preset threshold threshold. If the result of step 304 is better than a preset threshold, the terminal is considered to be the end.
  • the interference suppression capability of the terminal is strong, and may be a mobile terminal supporting single-antenna interference suppression cancellation, otherwise it is not considered to be a mobile terminal supporting single-antenna interference suppression cancellation.
  • the method can be used as follows: Method 1, if the average value of the received signal quality parameter values in the N consecutive recent measurement reports is less than a specific threshold value T3 (for example, less than 3), the interference suppression capability of the terminal is considered. Strong, may be a mobile terminal supporting single-antenna interference suppression cancellation; Method 2, if N consecutively recent, the received signal quality is less than a specific set threshold value T3 (such as less than 3) of the received signal quality parameter value If the standard deviation is smaller than the threshold value T4 (for example, less than 0.1), the interference suppression capability of the terminal is considered to be strong, and may be a mobile terminal supporting single-antenna interference suppression cancellation; or, method 3, if the received signal strength is less than a certain The value of the received signal quality parameter in the measurement report of the threshold value T5 (such as less than -60dBm) is less than the threshold threshold T3 (for example, less than 3), or, in the fourth method, if the received signal strength is less than a threshold threshold T5 ( For example,
  • the interference suppression capability of the terminal may support a single antenna interference cancellation suppression mobile terminal.
  • the base station subsystem may have multiple processing manners, for example, in the first method, the process of actively learning the capability of the mobile terminal is terminated, and step 306 is performed; or The base station subsystem decides to continue to apply another round of co-channel interference based on the result.
  • the power intensity and duration of applying the co-channel interference may be set according to the strategy of the base station subsystem, which may be equivalent to the corresponding setting of the previous round. It can also be different from this.
  • the base station subsystem analyzes the received signal quality, the received signal strength and other related parameters in the one or more measurement reports reported by the mobile terminal during the round of the same frequency interference, for example, whether the parameters are better than a set threshold threshold , the threshold threshold can be equal to the corresponding setting of the previous round, or it can be different. And so on, until the base station subsystem considers that the process of actively learning the capabilities of the mobile terminal ends, step 306 is performed.
  • the processing of multiple determination results after applying multiple rounds of co-channel interference can be implemented in various ways according to the specific application environment and implementation characteristics according to the base station subsystem. For example, the maximum possible mode is adopted.
  • the mobile terminal is considered to have single-antenna interference suppression cancellation.
  • Ability or use the strongest limit principle, only one after each round of co-channel interference
  • the base station subsystem considers that the process of actively learning the capability of the mobile terminal ends, and performs step 306.
  • Step 306 The process in which the base station subsystem actively learns the single antenna interference suppression cancellation capability of the mobile terminal ends.
  • the mobile terminal is in the dedicated mode, and the base station subsystem actively learns the single-antenna interference suppression cancellation capability of the mobile terminal by jointly applying the same-frequency interference to the TCH frame and the SACCH frame, and the steps include: Step 401
  • the base station subsystem determines, by using the relevant parameters of the mobile terminal interference processing capability in the measurement report sent by the mobile terminal, such as the received signal quality parameter, the mobile terminal that needs to learn the single antenna interference suppression cancellation support capability.
  • the base station subsystem may determine the mobile terminal by using various parameters, such as a received signal quality parameter and/or a received signal strength parameter, in the measurement report sent by the mobile terminal, which may be reflected by the mobile terminal interference processing capability; or the base station The system determines that one or some mobile terminals served by certain carrier frequencies or cells need to perform single-antenna interference suppression cancellation support capability based on the measurement results of the uplink; or the base station subsystem determines that the payload is based on the traffic load.
  • One or some mobile terminals serving frequency or cell services need to be aware of the single antenna interference suppression cancellation support capability.
  • the mobile terminal that needs to perform the single-antenna interference suppression cancellation support capability is determined by using relevant parameters in the measurement report transmitted by the mobile terminal that reflect the interference processing capability of the mobile terminal, such as the received signal quality parameter.
  • Step 401 is an optional step, and the mobile terminal that needs to perform the single antenna interference suppression cancellation support capability may be the default one or some mobile terminals.
  • Step 402 The base station subsystem applies an adaptive signal to the measured signal to the downlink TCH frame and the SACCH frame of the mobile terminal that is determined to be required to perform the single antenna interference suppression cancellation support capability.
  • the co-channel interference of QPSK modulation, the power of the co-channel interference is equal to the power of the signal under test.
  • the modulation method of co-channel interference applied by the base station subsystem can be various, for example, the co-channel interference is a multi-purpose
  • the power of the same-frequency interference can be various, such as the power of the same-frequency interference and the measured signal, or the same-frequency interference is higher than the measured signal by l-2dB.
  • the downlink TCH frame and the SACCH frame of the mobile terminal are applied with a same-frequency interference with the QPSK modulation of the measured signal, and the power of the same-frequency interference is equal to the measured signal power.
  • Step 403 The base station subsystem applies the co-channel interference to the TCH frame and the SACCH frame belonging to the same mobile terminal in each of the 26 multiframes in units of 26 multiframes, and the co-channel interference is continuously applied to the four consecutive 26 complexes.
  • the same frequency interference is applied to one SACCH frame and 24 TCH frames in each of the 26 multiframes, and the co-channel interference is continuously applied to four consecutive 26 complexes.
  • the same frequency interference is applied to one SACCH frame and 12 TCH frames belonging to the first mobile terminal in each of the 26 multiframes, and the same frequency interference is continuously applied to four
  • the co-channel interference is applied to 1 SACCH frame and 12 TCH frames belonging to the second mobile terminal in each 26 multiframe, and the co-channel interference is continuously applied to 4 consecutive 26 complexes.
  • the continuous mode of co-channel interference can also have various options, for example, it can be applied to consecutive 4 26 multiframes, or to 2 consecutive 6 or 6 26 multiframes.
  • the co-channel interference is applied to one SACCH frame and 24 TCH frames in each of the 26 multiframes of the mobile terminal, and the co-channel interference is continuously applied to four consecutive 26 complexes.
  • the frame as shown in Figure 9, is a schematic diagram of the base station subsystem jointly applying interference to the TCH frame and the SACCH frame for a full rate voice channel. As shown in FIG. 10, for a half rate voice channel, the base station subsystem jointly applies interference to the TCH frame and the SACCH frame.
  • T6 such as less than 2
  • the average value of the received signal quality parameter values in the N consecutive recent measurement reports is obtained; the second method is to measure the N thresholds that are less than the specified threshold value T6 (for example, less than 3).
  • the received signal quality parameter value is used to obtain the standard deviation; or, the third method is combined with the received signal quality in the downlink measurement report, and the received signal strength is acquired together, for example, only the measurement report containing the received signal strength less than a certain threshold value T7
  • the received signal quality parameter value is averaged in the method; the fourth method is combined with the received signal quality in the downlink measurement report, and the received signal strength is acquired together, for example, only in the measurement report containing the received signal strength less than a certain threshold value T7.
  • the signal quality parameter value is found to be standard deviation.
  • the parameter value is the standard deviation.
  • Step 405 The base station subsystem compares the result of the step 404 with a preset threshold threshold. If the result of the step 404 is better than a preset threshold, the interference suppression capability of the terminal is considered to be strong. It may be a mobile terminal that supports single-antenna interference suppression cancellation, otherwise it is not considered to be a mobile terminal that supports single-antenna interference suppression cancellation. Specifically, it can be used as follows: Method 1, if the average value of the received signal quality parameter values in a consecutive recent measurement report is less than a specific threshold value ⁇ 6 (for example, less than 3), the interference suppression capability of the terminal is considered.
  • a specific threshold value ⁇ 6 for example, less than 3
  • the terminal may be a mobile terminal supporting single-antenna interference suppression cancellation;
  • Method 2 if a consecutively recent, received signal quality is less than a specific threshold value of the threshold ⁇ 6 (such as less than 3), the received signal quality parameter value If the standard deviation is less than the threshold value of the specified threshold ⁇ 7 (for example, less than 0.05), the terminal has a strong interference suppression capability, which may be a mobile terminal supporting single-antenna interference suppression cancellation; or, method 3, if the received signal strength is less than a certain The average value of the received signal quality parameter in the measurement report of the threshold value ⁇ 8 (such as less than -70dBm) is less than the threshold threshold T6 (for example, less than 3), or, in the fourth method, if the received signal strength is less than a certain threshold value T8 ( For example, the measurement signal quality parameter value standard deviation in the measurement report less than -70dBm is less than the threshold threshold T7 (such as less than 0.0) 5), the terminal is considered to have strong interference suppression capability
  • the base station subsystem may have multiple processing manners, for example, in the first method, the process of actively learning the capability of the mobile terminal is terminated, and step 406 is performed; or , the base station subsystem decides to continue based on the result Add another round of co-channel interference.
  • the power intensity and duration of applying the co-channel interference can be set according to the strategy of the base station subsystem, which can be equivalent to the corresponding setting of the previous round, or different.
  • the base station subsystem analyzes the received signal quality, the received signal strength and other related parameters in the one or more measurement reports reported by the mobile terminal during the round of the same frequency interference, for example, whether the parameters are better than a set threshold threshold , the threshold threshold can be equal to the corresponding setting of the previous round, or it can be different.
  • step 406 is performed.
  • the processing of multiple determination results after applying multiple rounds of co-channel interference can be implemented in various ways according to the specific application environment and implementation characteristics according to the base station subsystem. For example, the maximum possible mode is adopted.
  • the mobile terminal is considered to have single-antenna interference suppression cancellation. Capability; or use the strongest limit principle.
  • the base station subsystem considers that the process of actively learning the capability of the mobile terminal ends, and performs step 406. Step 406: The process in which the base station subsystem actively learns the single antenna interference suppression cancellation capability of the mobile terminal ends.
  • the device for learning the capability of the mobile terminal is applicable to the base station subsystem, including the test target determining unit 111 and the capability learning unit 112, wherein: the test target determining unit 111 is configured to: Determining the mobile terminal to be tested for the single antenna interference suppression cancellation support capability, and informing the capability learning unit; the capability learning unit 112 is configured to: select a specific type of the mobile terminal to be tested for the single antenna interference suppression cancellation support capability
  • the downlink frame applies one or more rounds of co-channel interference, analyzes the received signal parameters in the measurement report reported by the mobile terminal during the application of the same-frequency interference, and determines whether the mobile terminal has the single-antenna interference suppression cancellation support capability.
  • the test target determining unit 111 is an optional module, and the default function can be set in the capability learning unit 112.
  • One or some terminals are mobile terminals that support the single antenna interference suppression cancellation capability to be tested.
  • the test target determining unit 111 is configured to: determine a mobile terminal to be tested for single antenna interference suppression cancellation support capability according to one or more of the following information: (1) a measurement report sent by the mobile terminal Parameters that reflect the interference handling capabilities of the mobile terminal; (2) measurement results for the uplink; (3) traffic load.
  • the particular type of downstream frame includes a voice channel (TCH) frame and/or a slow associated control channel (SACCH) frame.
  • TCH voice channel
  • SACCH slow associated control channel
  • the capability learning unit 112 is configured to: perform GMSK modulation on the same-frequency interference signal and the measured signal, and then perform vector summation on the modulated co-channel interference signal and the measured signal to form a downlink signal transmission.
  • the co-channel interference signal is an interference signal having the same phase as the measured signal, or an interference signal that is ⁇ /2 out of phase with the measured signal; or, the same-frequency interference signal and the measured signal are directly After performing adaptive QPSK modulation, the modulated downlink signal is sent to the mobile terminal.
  • the capability learning unit 112 is configured to: apply a round of co-channel interference to a specific type of downlink frame of the mobile terminal to be tested for single antenna interference suppression cancellation support, and analyze the movement during the application of co-channel interference a received signal parameter in the measurement report reported by the terminal, and determining whether to continue to apply co-channel interference based on the analysis result, and if it is determined to continue to apply the same-frequency interference, continuing to apply the same-frequency interference to the specific type of downlink frame of the mobile terminal until It is determined whether the mobile terminal has a single antenna interference suppression cancellation support capability.
  • the capability learning unit 112 is configured to: after applying a round of co-channel interference to a specific type of downlink frame of the mobile terminal, the analysis result obtained by applying the same-frequency interference is better than a preset threshold threshold And determining that the mobile terminal has a single antenna interference suppression cancellation support capability; or, after applying multiple rounds of co-channel interference to a specific type of downlink frame of the mobile terminal, if one of the rounds applies the same frequency interference, the analysis result is excellent.
  • the mobile terminal Determining, by a preset threshold value, the mobile terminal has a single antenna interference suppression cancellation support capability; or, after applying multiple rounds of co-channel interference to a specific type of downlink frame of the mobile terminal, if each round is applied.
  • the analysis result obtained by the same frequency interference is better than the preset threshold threshold, and the mobile terminal is determined to have the single antenna interference suppression cancellation support capability.
  • the received signal parameter is a received signal quality parameter, or is a received signal quality parameter and a received signal strength parameter;
  • the capability learning unit 112 is configured to: measure the measurement reported by the mobile terminal during the application of the co-channel interference When receiving the signal parameters in the report: average the received signal quality parameter values in the N consecutive recent measurement reports, and determine whether the obtained result is smaller than the first threshold threshold; or, for N consecutively recent, received signal quality
  • the value of the received signal quality parameter in the measurement report whose parameter value is less than the first threshold value is used to determine the standard deviation, and whether the obtained result is less than the second threshold threshold; or, the parameter value containing the received signal strength is less than the third threshold threshold value.
  • the average value of the received signal quality parameter value in the measurement report is used to determine whether the obtained result is smaller than the first threshold threshold value; or, the value of the received signal quality parameter in the measurement report containing the received signal strength parameter value less than the third threshold threshold value Standard deviation, whether the result is less than the second threshold; N is an integer.
  • the device for learning the capabilities of the mobile terminal may be located in the BTS, or partially located in the BTS, and partially located in the BSC (for example, the test target determining unit 111 is located in the BSC, and the capability learning unit 112 is located in the BTS; or the test target determining unit 111 is located. In the BSC, a part of the capability learning unit 112 is located in the BTS, and a part is located in the BSC.
  • the specific implementation may be implemented in various manners, which is not specifically limited by the present invention.
  • the present invention provides a method and apparatus for a base station subsystem to learn the capabilities of a mobile terminal. By testing the same frequency interference of the mobile terminal, the mobile terminal can actively detect the mobile terminal without reporting its single antenna interference suppression cancellation support capability.
  • the single antenna cancellation suppression cancellation capability of the mobile terminal can effectively use the single antenna interference suppression cancellation technology, so that the GSM network still obtains good overall network performance in an interference-limited environment.

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Abstract

本发明公开了一种基站子系统获知移动终端能力的方法和装置,其中,所述方法包括:基站子系统对待测试单天线干扰抑制消除支持能力的移动终端的特定类型的下行帧施加一轮或多轮同频干扰,分析施加同频干扰期间所述移动终端上报的测量报告中的接收信号参数,判断所述移动终端是否具有单天线干扰抑制消除支持能力。本发明能够在移动终端不上报其单天线干扰抑制消除支持能力的情况下,主动地检测出移动终端的单天线干扰抑制消除的支持能力,从而可以有效地使用单天线干扰抑制消除技术,使GSM网络在干扰受限的环境中,依然得到很好的整体网络性能。

Description

一种基站子系统获知移动终端能力的方法和装置
技术领域 本发明涉及移动通信领域, 尤其涉及一种实现 GSM ( Global System for Mobile Communications , 全球移动通讯系统) 系统中, 基站子系统获知移动 终端的能力的方法和装置。
背景技术
GSM 系统的网络构架如图 1 所示, 包括核心网、 BSC ( Base Station Controller, 基站控制器)和 BTS ( Base Station, 基站)三层, BSC和 BTS 又可被合称为基站子系统(BSS Base Station Subsystem ) , 其中, 核心网和 BSC之间的接口称为 A接口, BSC与 BTS之间的接口称为 Abis接口, BTS 与移动终端间的接口称为 Um接口; 核心网、 BSC和 BTS协同工作, 向移 动终端提供完整的移动话音服务功能。 GSM无线网络是由若干个基站提供覆盖和服务的, GSM商用无线网络 往往需要几十个甚至几百个基站才能完成覆盖并满足话务需求, 而 GSM 网 络能利用的频率资源又非常有限, 这就构成了一对矛盾。 为此, GSM系统釆 用蜂窝结构来解决话务需求与移动通信系统频率资源有限的矛盾。 但蜂窝结 构带来的频率复用方式不可避免地给 GSM 网络引入了相当数量的同频干扰 和邻频干扰, 并且这些同频干扰和邻频干扰的干扰水平随着频率复用程度的 紧密而更加严峻, 使 GSM网络成为干扰受限的网络。 随着技术的演进, GSM与 HSPA+(演进的高速分组接入)或 LTE( Long Term Evolution, 长期演进)的共谱运营会导致运营商希望将有限的频谱资源 在不同的无线技术(GSM, HSPA+, LTE等)中动态共享, 其中的一个应用 场景为: HSPA+或 LTE占用了大部分频谱资源, GSM占用较少部分频谱资 源,但 GSM用户的数量并没有急剧减少。 这就需要 GSM网络以相对更少的 频谱资源来为这些用户提供话音服务, 此时, 对 GSM 系统釆用更为紧密的 频率复用方式是解决频谱资源困境的方式之一, 但显然, 这种更紧密的频率 复用也必然带来更多的同频干扰和邻频干扰, 也同样使 GSM 网络更加成为 干扰受限的网络。 单天线干扰抑制消除技术的出现, 使移动终端可以利用这一技术在消除 干扰方面的优势, 在干扰受限的环境中得到很好的话音处理性能。 比如, 一 些支持单天线干扰抑制消除技术的移动终端能在同频干扰为 OdB或 3dB的场 景下, 依然得到很好的话音处理性能。 单天线干扰抑制消除技术使得基站子 系统能将一些相对干扰较大, 质量较差的信道分配给支持单天线干扰抑制消 除技术的移动终端, 而不是分配给传统的不支持该技术的移动终端, 通过这 样的处理, 能在干扰受限的环境中, 依然得到很好的整体网络性能。 现有技术中, 移动终端通过与基站子系统之间的接口上报移动终端的单 天线干扰抑制消除的支持能力, 但如果支持单天线干扰抑制消除的移动终端 因为一些原因, 如软件设计缺陷, 没有上报其支持能力, 那么基站子系统就 无法得知该移动终端的单天线干扰抑制消除的支持能力。
发明内容 本发明所要解决的技术问题是提供一种基站子系统获知移动终端的能力 的方法和装置, 能够在移动终端不上报其单天线干扰抑制消除支持能力的情 况下, 主动地检测出移动终端的单天线干扰抑制消除的支持能力。 为了解决上述技术问题, 本发明提供一种基站子系统获知移动终端能力 的方法, 包括: 基站子系统对待测试单天线干扰抑制消除支持能力的移动终端的特定类 型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰期间所述移动终端 上报的测量报告中的接收信号参数, 判断所述移动终端是否具有单天线干扰 抑制消除支持能力。 优选地, 在基站子系统对待测试单天线干扰抑制消除支持能力的移动终 端的特定类型的下行帧施加一轮或多轮同频干扰之前, 所述方法还包括: 所述基站子系统确定所述待测试单天线干扰抑制消除支持能力的移动终 端; 其中, 所述基站子系统根据如下信息中的一种或多种确定所述待测试单 天线干扰抑制消除支持能力的移动终端:
( 1 )移动终端发送的测量报告中体现移动终端干扰处理能力的参数;
( 2 )对上行的测量结果; ( 3 )话务负荷。 优选地, 所述特定类型的下行帧包括语音信道(TCH )帧和 /或慢速随路 控制信道(SACCH ) 帧。 优选地, 在所述基站子系统对所述待测试单天线干扰抑制消除支持能力 的移动终端的特定类型的下行帧施加一轮或多轮同频干扰的步骤中, 所述基站子系统将同频干扰信号与被测信号分别进行高斯滤波最小移频 键控 ( GMSK )调制后, 再将调制后的同频干扰信号与被测信号进行矢量相 加合成一个下行信号发送给所述移动终端; 所述同频干扰信号是与被测信号 相位相同的干扰信号, 或者是与被测信号相位相差 π/2的干扰信号; 或者, 所述基站子系统将同频干扰信号与被测信号直接进行自适应正交相移键 控(QPSK )调制后, 将调制后的下行信号发送给所述移动终端。 优选地, 所述基站子系统对所述待测试单天线干扰抑制消除支持能力的 移动终端的特定类型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰 期间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是 否具有单天线干扰抑制消除支持能力的步骤包括: 所述基站子系统对所述待测试单天线干扰抑制消除支持能力的移动终端 的特定类型的下行帧施加一轮同频干扰, 分析施加同频干扰期间所述移动终 端上报的测量报告中的接收信号参数, 并基于分析结果确定是否继续施加同 频干扰, 若确定继续施加同频干扰, 则对所述移动终端的特定类型的下行帧 继续施加同频干扰, 直到判断出所述移动终端是否具有单天线干扰抑制消除 支持能力。 优选地, 在所述基站子系统对所述移动终端的特定类型的下行帧施加一 轮同频干扰, 分析施加同频干扰期间所述移动终端上报的测量报告中的接收 信号参数, 判断所述移动终端是否具有单天线干扰抑制消除支持能力的步骤 中,
当施加同频干扰得到的分析结果优于预先设定的门限阔值, 则所述基站 子系统判断所述移动终端具有单天线干扰抑制消除支持能力。 优选地, 在所述基站子系统对所述移动终端的特定类型的下行帧施加多 轮同频干扰, 分析施加同频干扰期间所述移动终端上报的测量报告中的接收 信号参数, 判断所述移动终端是否具有单天线干扰抑制消除支持能力的步骤 中,
若其中一轮施加同频干扰得到的分析结果优于预先设定的门限阔值, 则 所述基站子系统判断所述移动终端具有单天线干扰抑制消除支持能力;或者 , 若每一轮施加同频干扰得到的分析结果均优于预先设定的门限阔值, 则 所述基站子系统判断所述移动终端具有单天线干扰抑制消除支持能力。 优选地, 所述接收信号参数为接收信号质量参数, 或者为接收信号质量 参数和接收信号强度参数; 所述分析施加同频干扰期间所述移动终端上报的测量报告中的接收信号 参数的步骤包括: 对 N个连续最近的测量报告中的接收信号质量参数值求均值,判断得到 的结果是否小于第一门限阔值; 或者, 对 N个连续最近的、接收信号质量参数值小于第一门限阔值的测量报告 中的接收信号质量参数值求标准差 ,判断得到的结果是否小于第二门限阔值; 或者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号 质量参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号 质量参数值求标准差, 判断得到的结果是否小于第二门限阔值; 其中, N为整数。 为了解决上述技术问题, 本发明提供一种获知移动终端能力的装置, 包 括能力获知单元, 其中: 所述能力获知单元设置成: 对待测试单天线干扰抑制消除支持能力的移 动终端的特定类型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰期 间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否 具有单天线干扰抑制消除支持能力。
优选地, 所述装置还包括测试目标确定单元, 其中: 所述测试目标确定单元设置成: 根据如下信息中的一种或多种确定待测 试单天线干扰抑制消除支持能力的移动终端,并告知所述能力获知单元: ( 1 ) 移动终端发送的测量报告中体现移动终端干扰处理能力的参数; ( 2 )对上行 的测量结果; (3 )话务负荷。 优选地, 所述特定类型的下行帧包括语音信道(TCH )帧和 /或慢速随路 控制信道(SACCH ) 帧。 优选地, 所述能力获知单元是设置成: 将同频干 4尤信号与被测信号分别 进行高斯滤波最小移频键控(GMSK )调制后, 再将调制后的同频干扰信号 与被测信号进行矢量相加合成一个下行信号发送给所述移动终端, 所述同频 干扰信号是与被测信号相位相同的干扰信号,或者是与被测信号相位相差 π/2 的干扰信号; 或者, 将同频干扰信号与被测信号直接进行自适应正交相移键 控(QPSK )调制后, 将调制后的下行信号发送给所述移动终端。 优选地, 所述能力获知单元是设置成: 对所述待测试单天线干扰抑制消 除支持能力的移动终端的特定类型的下行帧施加一轮同频干扰, 分析施加同 频干扰期间所述移动终端上报的测量报告中的接收信号参数, 并基于分析结 果确定是否继续施加同频干扰, 若确定继续施加同频干扰, 则对所述移动终 端的特定类型的下行帧继续施加同频干扰, 直到判断出所述移动终端是否具 有单天线干扰抑制消除支持能力。 优选地, 所述能力获知单元是设置成: 对所述移动终端的特定类型的下 行帧施加一轮同频干扰后, 当施加同频干扰得到的分析结果优于预先设定的 门限阔值, 则判断所述移动终端具有单天线干扰抑制消除支持能力; 或者, 对所述移动终端的特定类型的下行帧施加多轮同频干扰后, 若其中一轮施加 同频干扰得到的分析结果优于预先设定的门限阔值, 则判断所述移动终端具 有单天线干扰抑制消除支持能力; 或者, 对所述移动终端的特定类型的下行 帧施加多轮同频干扰后, 若每一轮施加同频干扰得到的分析结果均优于预先 设定的门限阔值, 则判断所述移动终端具有单天线干扰抑制消除支持能力。 优选地, 所述接收信号参数为接收信号质量参数, 或者为接收信号质量 参数和接收信号强度参数; 所述能力获知单元是设置成: 在分析施加同频干扰期间所述移动终端上 报的测量报告中的接收信号参数时:对 N个连续最近的测量报告中的接收信 号质量参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对 N 个连续最近的、 接收信号质量参数值小于第一门限阔值的测量报告中的接收 信号质量参数值求标准差, 判断得到的结果是否小于第二门限阔值; 或者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号质量 参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对含有接收 信号强度参数值小于第三门限阔值的测量报告中的接收信号质量参数值求标 准差, 判断得到的结果是否小于第二门限阔值; 其中, N为整数。
本发明能够在移动终端不上报其单天线干扰抑制消除支持能力的情况 下, 主动地检测出移动终端的单天线干扰抑制消除的支持能力, 从而可以有 效地使用单天线干扰抑制消除技术, 使 GSM网络在干扰受限的环境中, 依 然得到很好的整体网络性能。
附图概述 图 1 是传统 GSM系统的网络构架; 图 2 是本发明实施例一的基站子系统通过对 TCH帧施加同频干扰的方 式主动获知移动终端能力的流程图; 图 3是本发明实施例一的对一个移动终端的 TCH/F施加同频干扰的一个 26复帧示意图; 图 4本发明实施例一的对一个处于第一子信道的移动终端的 TCH/H施加 同频干扰的一个 26复帧示意图; 图 5是本发明实施例二的基站子系统通过对 SACCH帧施加同频干扰的 方式主动获知移动终端能力的流程图; 图 6是本发明实施例二的对一个移动终端全速率时的 SACCH施加同频 干扰的一个 26复帧示意图; 图 7 是本发明实施例二的对一个移动终端半速率第二子信道时的 SACCH施加同频干扰的一个 26复帧示意图; 图 8 是本发明实施例三的基站子系统通过对 TCH帧和 SACCH帧联合 施加同频干扰的方式主动获知移动终端能力的流程图; 图 9是本发明实施例三的对一个移动终端的 TCH/F和 SACCH都施加同 频干扰的一个 26复帧示意图; 图 10是本发明实施例三的对一个处于第一子信道移动终端的 TCH/H和 SACCH都施加同频干扰的一个 26复帧示意图; 图 11是本发明实施例的获知移动终端的能力的装置示意图。
本发明的较佳实施方式 本发明的基本构思是, 基站子系统通过分析移动终端上报的测量报告, 结合对移动终端的特定类型的下行帧施加一轮或多轮检测用同频干扰后反馈 的测量 告的分析, 来获知移动终端的单天线干扰抑制消除的支持能力。 具体地, 基站子系统主动获知移动终端的单天线干扰抑制消除支持能力 可包括两个阶段: 第一阶段, 基站子系统确定待测试单天线干扰抑制消除支持能力的移动 终端; 也即基站子系统确定需要进行单天线干扰抑制消除支持能力获知的移 动终端。 具体地, 可以通过移动终端发送的测量报告中的体现移动终端干扰处理 能力的参数, 如接收信号质量参数和 /或接收信号强度参数来确定移动终端; 或者, 基站子系统也可以基于对上行的测量结果来确定被某些载频或小区服 务的某个或某些移动终端需要进行单天线干扰抑制消除支持能力获知;或者, 基站子系统也可以基于话务负荷来确定被某些载频或小区服务的某个或某些 移动终端需要进行单天线干扰抑制消除支持能力获知。 也可以设置默认的待测试单天线干扰抑制消除支持能力的移动终端, 比 如, 指定的某个或某些移动终端固定需要进行单天线干扰抑制消除支持能力 获知, 或者, 每个终端均需要进行单天线干扰抑制消除支持能力获知, 则可 省略本阶段的基站子系统确定待测试单天线干扰抑制消除支持能力的移动终 端的步骤。 第二阶段, 基站子系统对所述待测试单天线干扰抑制消除支持能力的移 动终端的特定类型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰期 间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否 具有单天线干扰抑制消除支持能力。 其中, 该特定类型的下行帧包括 TCH (语音信道 )帧和 /或 SACCH (慢 速随路控制信道)帧,即:可以是只对 TCH帧施加同频干扰,或者只对 SACCH 帧施加同频干扰, 或者, 对 TCH帧和 SACCH帧联合施加同频干扰。 上述接收信号参数可以仅是接收信号质量参数, 也可以是接收信号质量 参数和接收信号强度参数等相关参数。 第二阶段中, 施加一轮或多轮同频干扰的方式可以是: 对特定类型的下 行帧先施加一轮同频干扰, 施加的同频干扰的功率强度和持续时间可以根据 基站子系统的策略来设置, 然后分析施加同频干扰期间移动终端上报的一个 或多个测量报告中的接收信号质量, 接收信号强度等相关参数, 比如, 这些 参数是否优于设定的门限阔值, 基站子系统基于分析结果决定是否继续施加 同频干扰。 如基站基于分析结果判定继续施加另外一轮, 同样的, 施加该同 频干扰的功率强度和持续时间可以根据基站子系统的策略来设置, 可以等同 于之前一轮的相应设置, 也可以不同于此。 然后, 基站子系统分析施加该轮 同频干扰期间移动终端上报的一个或多个测量报告中的接收信号质量, 接收 信号强度等相关参数, 比如, 这些参数是否优于设定的门限阔值, 该门限阔 值可以等同于之前一轮的相应设置, 也可以不同于此。 基站子系统基于分析 结果决定是否继续施加同频干扰。 以此类推, 直到基站子系统认为已经能得 出移动终端的单天线干扰抑制消除能力的情况, 则完成基站子系统主动地获 知移动终端的单天线干 4尤抑制消除能力的过程。
第二阶段中, 基站子系统可以通过分析施加了同频干扰后的移动终端上 报的测量报告中的接收信号质量, 接收信号强度等相关参数, 结合基站子系 统预先设置的各种相关门限阔值来判决移动终端的单天线干扰抑制消除能 力。 具体的移动终端的单天线干扰抑制消除能力的判决的特定数值, 如施加 几轮同频干扰, 施加的同频干扰的功率强度和持续时间, 用于判断的设定的 门限阔值等, 可根据基站子系统的策略来实现。 比如, 当基站子系统仅通过 施加一轮同频干扰即判断出所述移动终端是否具有单天线干扰抑制消除支持 能力时, 当施加同频干扰得到的分析结果优于预先设定的门限阔值时, 则该 基站子系统判断移动终端具有单天线干扰抑制消除支持能力; 当基站子系统 通过施加多轮同频干扰判断所述移动终端是否具有单天线干扰抑制消除支持 能力时, 可釆用多种实现方式, 例如釆取最大可能方式, 只要其中一轮施加 同频干扰得到的分析结果优于预先设定的门限阔值, 即判断移动终端具有单 天线干扰抑制消除支持能力; 或者, 釆用最强限定原则方式, 即每一轮施加 同频干扰得到的分析结果均优于预先设定的门限阔值, 才判断移动终端具有 单天线干扰抑制消除支持能力。
第二阶段中, 基站子系统施加的同频干扰的调制方式可以是多样的, 比 如该同频干扰是一个与被测信号相位相同的干扰信号, 同频干扰信号与被测 信号分别进行 GMSK ( Gaussian-Filtered Minimum Shift Keying, 高斯滤波最 小移频键控)调制后, 再将两个调制后的信号进行矢量相加合成一个下行信 号发送给移动终端; 或是一个与被测信号相位相差 pie/2 (即 π/2 ) 的干扰信 号, 同频干扰信号与被测信号分别进行 GMSK调制后, 再将两个调制后的信 号进行矢量相加合成一个下行信号发送给移动终端; 或是可以体现为釆用与 被测信号组成的一个自适应 QPSK ( Quadrature Phase Shift Keying, 正交相移 键控 )调制信号, 同频干扰信号与被测信号直接进行自适应 QPSK调制后, 再将调制后的下行信号发送给移动终端。 自适应 QPSK调制可以釆用已有文 献中的现有技术, 如 3GPP TS 45.004所提供的方法。 同频干扰信号与被测信 号釆用不同的训练序列。 上述方法具体实现时,可以是由基站子系统中的 BTS单独完成主动获知 移动终端的单天线干扰抑制消除支持能力的过程, 也可以是 BSC和 BTS共 同完成主动获知移动终端的单天线干扰抑制消除支持能力的过程。 比如, 可 以由 BTS确定需要进行单天线干扰抑制消除支持能力获知的移动终端,也可 以由 BSC确定需要进行单天线干扰抑制消除支持能力获知的移动终端,再告 知 BTS; 对所述待测试单天线干扰抑制消除支持能力的移动终端的特定类型 的下行帧施加一轮或多轮同频干扰可以由 BTS完成,分析施加同频干扰期间 所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否具 有单天线干扰抑制消除支持能力可以由 BTS或 BSC完成, 也可以由 BTS和 BSC共同完成, 本发明不对此进行具体限制。
以下结合附图和具体实施例对本发明进行详细描述。 实施例一 如图 2所示,移动终端处于专用模式下,基站子系统通过对 TCH帧施加 同频干扰的方式主动获知移动终端的单天线干扰抑制消除能力的步骤包括: 步骤 201 , 基站子系统通过移动终端发送的测量报告中的体现移动终端 干扰处理能力的相关参数, 如接收信号质量参数, 来确定需要进行单天线干 扰抑制消除支持能力获知的移动终端。 基站子系统可以用多种方式, 比如可以通过移动终端发送的测量报告中 的体现移动终端干扰处理能力的相关参数,如接收信号质量参数和 /或接收信 号强度参数来确定移动终端; 或基站子系统基于对上行的测量结果来确定被 某些载频或小区服务的某个或某些移动终端需要进行单天线干扰抑制消除支 持能力获知; 或基站子系统基于话务负荷来确定被某些载频或小区服务的某 个或某些移动终端需要进行单天线干扰抑制消除支持能力获知。 本实施例中 釆用的是通过移动终端发送的测量报告中的体现移动终端干扰处理能力的相 关参数, 如接收信号质量参数, 来确定需要进行单天线干扰抑制消除支持能 力获知的移动终端。 步骤 201为可选步骤, 需要进行单天线干扰抑制消除支持能力获知的移 动终端可以是默认的某个或某些移动终端。 步骤 202 , 基站子系统给被确定需要进行单天线干扰抑制消除支持能力 获知的移动终端的下行 TCH帧施加一个与被测信号进行自适应 QPSK调制 的同频干扰, 该同频干扰的功率等于被测信号功率。 基站子系统施加的同频干扰的调制方式可以是多样的, 比如该同频干扰 可以体现为一个釆用 GMSK调制的与被测信号相位相同的干扰信号,或是一 个与被测信号相位相差 pie/2的 GMSK调制信号, 或是可以体现为釆用与被 测信号组成的一个自适应 QPSK调制信号。 同频干扰的功率可以是多样的, 比如同频干扰与被测信号等功率, 或同频干扰比被测信号高 l-2dB等。 在本 实施例中,釆用的是对移动终端的下行 TCH帧施加一个与被测信号进行自适 应 QPSK调制的同频干扰, 该同频干扰的功率等于被测信号功率。 步骤 203 , 基站子系统以 26复帧为单位, 对每个 26复帧中属于同一移 动终端的 TCH帧都施加该同频干 4尤,并且该同频干 4尤持续施加到 4个连续的 26复帧上。 具体来说,可以是:对于全速率语音信道,对每个 26复帧中的 24个 TCH 帧都施加该同频干扰,并且该同频干扰持续施加到 4个连续的 26复帧上;对 于半速率语音信道来说,对每个 26复帧中的属于第一移动终端的 12个 TCH 帧都施加该同频干扰,并且该同频干扰持续施加到 4个连续的 26复帧上,对 每个 26复帧中的属于第二移动终端的 12个 TCH帧都施加该同频干扰,并且 该同频干扰持续施加到 4个连续的 26复帧上。同频干扰的持续方式也可以有 多种选择, 比如可以对连续的 4个 26复帧施加, 也可以对连续的 2个或 6 个 26复帧施加。 在本实施例中, 釆用的是对移动终端的每个 26复帧中的 24 个 TCH帧都施加该同频干扰, 并且该同频干扰持续施加到 4个连续的 26复 帧, 如图 3所示, 为对于全速率语音信道,基站子系统对 TCH帧施加干扰的 示意图。如图 4所示, 为对于半速率语音信道,基站子系统对 TCH帧施加干 扰的示意图。 步骤 204 , 获取施加同频干扰期间移动终端上报的一个或多个测量报告 中的接收信号质量, 接收信号强度等相关参数, 通过对 N ( N=2 )个连续最 近的, 接收信号质量小于特定设置的门限阔值 TO (比如小于 2 )的测量报告 中的接收信号质量参数值求标准差。 根据基站子系统的具体应用环境和实现特性有多种实现方法, 如方法一 是通过对 N个连续最近的测量报告中的接收信号质量参数值求均值; 方法二 是通过对 N个连续最近的, 接收信号质量小于特定设置的门限阔值 TO (比 如小于 2 ) 的测量报告中的接收信号质量参数值求标准差; 或者, 方法三是 结合下行测量报告中的接收信号质量, 接收信号强度一起进行获取, 比如只 对含有接收信号强度小于某个门限阔值 T2 的测量报告中的接收信号质量参 数值求均值; 方法四是结合下行测量报告中的接收信号质量, 接收信号强度 一起进行获取, 比如只对含有接收信号强度小于某个门限阔值 T2 的测量报 告中的接收信号质量参数值求标准差。 在本实施例中, 釆用的方法二, 即通 过对 N ( N=2 )个连续最近的,接收信号质量小于特定设置的门限阔值 TO (比 如小于 2 ) 的测量报告中的接收信号质量参数值求标准差。 步骤 205 , 基站子系统基于步骤 204的获取结果, 与预先设定的门限阔 值进行比较, 若步骤 204的获取结果优于预先设定的门限阔值, 则认为该终 端的干扰抑制能力强, 可能是支持单天线干扰抑制消除的移动终端, 否则就 认为不是支持单天线干扰抑制消除的移动终端。 具体来说, 可以釆用如: 方法一, 若 N个连续最近的测量报告中的接收 信号质量参数值的均值小于特定设置的门限阔值 TO (比如小于 2 )就认为该 终端的干扰抑制能力强, 可能是支持单天线干扰抑制消除的移动终端; 方法 二, 若 N个连续最近的, 接收信号质量小于特定设置的门限阔值 T0 (比如 小于 2 ) 的测量报告中的接收信号质量参数值的标准差小于特定设置的门限 阔值 T1 (比如小于 0.05 ) , 就认为该终端的干扰抑制能力强, 可能是支持单 天线干扰抑制消除的移动终端; 或者, 方法三, 如接收信号强度小于某个门 限阔值 T2 (比如小于 -65dBm ) 的测量报告中的接收信号质量参数值均值小 于门限阔值 T0 (比如小于 2 ) , 或者, 方法四, 如接收信号强度小于某个门 限阔值 T2 (比如小于 -65dBm ) 的测量报告中的接收信号质量参数值标准差 小于门限阔值 T1 (比如小于 0.05 ) , 就认为该终端的干扰抑制能力强, 可能 是支持单天线干扰抑制消除的移动终端。 对于可能是支持单天线干扰抑制消除的移动终端这样的判断结果, 基站 子系统可以有多种处理方式, 比如方法一, 认为该主动获知移动终端能力的 过程结束, 执行步骤 206; 或者, 方法二, 基站子系统基于结果决定继续施 加另外一轮同频干扰, 同样的, 施加该同频干扰的功率强度和持续时间可以 根据基站子系统的策略来设置, 可以等同于之前一轮的相应设置, 也可以不 同于此。 然后, 基站子系统分析施加该轮同频干扰期间移动终端上报的一个 或多个测量报告中的接收信号质量, 接收信号强度等相关参数, 比如, 这些 参数是否优于一个设定的门限阔值, 该门限阔值可以等同于之前一轮的相应 设置, 也可以不同于此。 以此类推, 直到基站子系统认为该主动获知移动终 端能力的过程结束, 执行步骤 206。 对施加多轮同频干扰后的多次判断结果的处理, 根据基站子系统可根据 具体应用环境和实现特性有多种实现方式。 比如: 釆取最大可能方式, 每一 轮施加同频干扰后的判断结果中, 只要有一次的结果是认为该移动终端具有 单天线干扰抑制消除能力,就认为该移动终端具有单天线干扰抑制消除能力; 或是釆用最强限定原则方式, 每一轮施加同频干扰后的判断结果中, 只有每 次的判断结果都认为该移动终端具有单天线干扰抑制消除能力, 才认为该移 动终端具有单天线干扰抑制消除能力。 对于不是支持单天线干扰抑制消除的移动终端这样的判断结果, 基站子 系统认为该主动获知移动终端能力的过程结束, 执行步骤 206。 步骤 206 , 基站子系统主动获知移动终端的单天线干扰抑制消除能力的 过程结束。
实施例二 如图 5所示, 移动终端处于专用模式下, 基站子系统通过对 SACCH帧 施加同频干扰的方式主动获知移动终端的单天线干扰抑制消除能力的步骤包 括: 步骤 301 , 基站子系统通过移动终端发送的测量报告中的体现移动终端 干扰处理能力的相关参数, 如接收信号质量参数, 来确定需要进行单天线干 扰抑制消除支持能力获知的移动终端。 基站子系统可以用多种方式, 比如可以通过移动终端发送的测量报告中 的体现移动终端干扰处理能力的相关参数,如接收信号质量参数和 /或接收信 号强度参数来确定移动终端; 或基站子系统基于对上行的测量结果来确定被 某些载频或小区服务的某个或某些移动终端需要进行单天线干扰抑制消除支 持能力获知; 或基站子系统基于话务负荷来确定被某些载频或小区服务的某 个或某些移动终端需要进行单天线干扰抑制消除支持能力获知。 本实施例中 釆用的是通过移动终端发送的测量报告中的体现移动终端干扰处理能力的相 关参数, 如接收信号质量参数, 来确定需要进行单天线干扰抑制消除支持能 力获知的移动终端。 步骤 301为可选步骤, 需要进行单天线干扰抑制消除支持能力获知的移 动终端可以是默认的某个或某些移动终端。 步骤 302, 基站子系统给被确定需要进行单天线干扰抑制消除支持能力 获知的移动终端的下行 SACCH帧施加一个与被测信号进行自适应 QPSK调 制的同频干扰, 该同频干扰的功率等于被测信号功率。 基站子系统施加的同频干扰的调制方式可以是多样的, 比如该同频干扰 可以体现为一个釆用 GMSK调制的与被测信号相位相同的干扰信号,或是一 个与被测信号相位相差 pie/2的 GMSK调制信号, 或是可以体现为釆用与被 测信号组成的一个自适应 QPSK调制信号。 同频干扰的功率可以是多样的, 比如同频干扰与被测信号等功率, 或同频干扰比被测信号高 l-2dB等。 在本 实施例中, 釆用的是对移动终端的下行 SACCH帧施加一个与被测信号进行 自适应 QPSK调制的同频干扰, 该同频干扰的功率等于被测信号功率。 步骤 303 , 基站子系统以 26复帧为单位, 对每个 26复帧中属于同一移 动终端的 SACCH帧施加该同频干扰, 并且该同频干扰持续施加到 4个连续 的 26复帧上。 具体来说,可以是:对于全速率语音信道,对每个 26复帧中的 1个 SACCH 帧施加该同频干扰,并且该同频干扰持续施加到 4个连续的 26复帧上;对于 半速率语音信道来说, 对每个 26复帧中的属于第一移动终端的 1个 SACCH 帧施加该同频干扰,并且该同频干扰持续施加到 4个连续的 26复帧上,对每 个 26复帧中的属于第二移动终端的 1个 SACCH帧施加该同频干扰,并且该 同频干扰持续施加到 4个连续的 26复帧上。同频干扰的持续方式也可以有多 种选择, 比如可以对连续的 4个 26复帧施加, 也可以对连续的 2个或 6个 26复帧施加。 在本实施例中, 釆用的是对移动终端的每个 26复帧中的 1个 SACCH帧施加该同频干扰,并且该同频干扰持续施加到 4个连续的 26复帧, 如图 6所示, 为对于全速率语音信道, 基站子系统对 SACCH帧施加干扰的 示意图。 如图 7所示, 为对于半速率语音信道, 基站子系统对 SACCH帧施 加干扰的示意图。 步骤 304 , 获取施加同频干扰期间移动终端上报的一个或多个测量报告 中的接收信号质量, 接收信号强度等相关参数, 通过对 N ( N=2 )个连续最 近的, 接收信号质量小于特定设置的门限阔值 T3 (比如小于 2 )的测量报告 中的接收信号质量参数值求标准差。 根据基站子系统的具体应用环境和实现特性有多种实现方法, 如方法一 是通过对 N个连续最近的测量报告中的接收信号质量参数值求均值; 方法二 是通过对 N个连续最近的, 接收信号质量小于特定设置的门限阔值 T3 (比 如小于 3 ) 的测量报告中的接收信号质量参数值求标准差; 或者, 方法三是 结合下行测量报告中的接收信号质量, 接收信号强度一起进行获取, 比如只 对含有接收信号强度小于某个门限阔值 T4 的测量报告中的接收信号质量参 数值求均值; 方法四是结合下行测量报告中的接收信号质量, 接收信号强度 一起进行获取, 比如只对含有接收信号强度小于某个门限阔值 T4 的测量报 告中的接收信号质量参数值求标准差。 在本实施例中, 釆用的方法二, 即通 过对 N ( N=2 )个连续最近的,接收信号质量小于特定设置的门限阔值 T3 (比 如小于 2 ) 的测量报告中的接收信号质量参数值求标准差。 步骤 305 , 基站子系统基于步骤 304的获取结果, 与预先设定的门限阔 值进行比较, 若步骤 304的获取结果优于预先设定的门限阔值, 则认为该终 端的干扰抑制能力强, 可能是支持单天线干扰抑制消除的移动终端, 否则就 认为不是支持单天线干扰抑制消除的移动终端。 具体来说, 可以釆用如: 方法一, 若 N个连续最近的测量报告中的接收 信号质量参数值的均值小于特定设置的门限阔值 T3 (比如小于 3 )就认为该 终端的干扰抑制能力强, 可能是支持单天线干扰抑制消除的移动终端; 方法 二, 若 N个连续最近的, 接收信号质量小于特定设置的门限阔值 T3 (比如 小于 3 ) 的测量报告中的接收信号质量参数值的标准差小于特定设置的门限 阔值 T4 (比如小于 0.1 ) , 就认为该终端的干扰抑制能力强, 可能是支持单 天线干扰抑制消除的移动终端; 或者, 方法三, 如接收信号强度小于某个门 限阔值 T5 (比如小于 -60dBm ) 的测量报告中的接收信号质量参数值均值小 于门限阔值 T3 (比如小于 3 ) , 或者, 方法四, 如接收信号强度小于某个门 限阔值 T5 (比如小于 -60dBm ) 的测量报告中的接收信号质量参数值标准差 小于门限阔值 T4 (比如小于 0.1 ) , 就认为该终端的干扰抑制能力强, 可能 是支持单天线干扰抑制消除的移动终端。 对于可能是支持单天线干扰抑制消除的移动终端这样的判断结果, 基站 子系统可以有多种处理方式, 比如方法一, 认为该主动获知移动终端能力的 过程结束, 执行步骤 306; 或者, 方法二, 基站子系统基于结果决定继续施 加另外一轮同频干扰, 同样的, 施加该同频干扰的功率强度和持续时间可以 根据基站子系统的策略来设置, 可以等同于之前一轮的相应设置, 也可以不 同于此。 然后, 基站子系统分析施加该轮同频干扰期间移动终端上报的一个 或多个测量报告中的接收信号质量, 接收信号强度等相关参数, 比如, 这些 参数是否优于一个设定的门限阔值, 该门限阔值可以等同于之前一轮的相应 设置, 也可以不同于此。 以此类推, 直到基站子系统认为该主动获知移动终 端能力的过程结束, 执行步骤 306。 对施加多轮同频干扰后的多次判断结果的处理, 根据基站子系统可根据 具体应用环境和实现特性有多种实现方式。 比如: 釆取最大可能方式, 每一 轮施加同频干扰后的判断结果中, 只要有一次的结果是认为该移动终端具有 单天线干扰抑制消除能力,就认为该移动终端具有单天线干扰抑制消除能力; 或是釆用最强限定原则方式, 每一轮施加同频干扰后的判断结果中, 只有每 次的判断结果都认为该移动终端具有单天线干扰抑制消除能力, 才认为该移 动终端具有单天线干扰抑制消除能力。 对于不是支持单天线干扰抑制消除的移动终端这样的判断结果, 基站子 系统认为该主动获知移动终端能力的过程结束, 执行步骤 306。 步骤 306 , 基站子系统主动获知移动终端的单天线干扰抑制消除能力的 过程结束。
实施例三 如图 8所示, 移动终端处于专用模式下, 基站子系统通过对 TCH帧和 SACCH 帧联合施加同频干扰的方式主动获知移动终端的单天线干扰抑制消 除能力的步骤包括: 步骤 401 , 基站子系统通过移动终端发送的测量报告中的体现移动终端 干扰处理能力的相关参数, 如接收信号质量参数, 来确定需要进行单天线干 扰抑制消除支持能力获知的移动终端。 基站子系统可以用多种方式, 比如可以通过移动终端发送的测量报告中 的体现移动终端干扰处理能力的相关参数,如接收信号质量参数和 /或接收信 号强度参数来确定移动终端; 或基站子系统基于对上行的测量结果来确定被 某些载频或小区服务的某个或某些移动终端需要进行单天线干扰抑制消除支 持能力获知; 或基站子系统基于话务负荷来确定被某些载频或小区服务的某 个或某些移动终端需要进行单天线干扰抑制消除支持能力获知。 本实施例中 釆用的是通过移动终端发送的测量报告中的体现移动终端干扰处理能力的相 关参数, 如接收信号质量参数, 来确定需要进行单天线干扰抑制消除支持能 力获知的移动终端。 步骤 401为可选步骤, 需要进行单天线干扰抑制消除支持能力获知的移 动终端可以是默认的某个或某些移动终端。 步骤 402 , 基站子系统给被确定需要进行单天线干扰抑制消除支持能力 获知的移动终端的下行 TCH帧和 SACCH帧施加一个与被测信号进行自适应 QPSK调制的同频干扰, 该同频干扰的功率等于被测信号功率。 基站子系统 施加的同频干扰的调制方式可以是多样的, 比如该同频干扰是一个釆用
GMSK调制的与被测信号相位相同的干扰信号, 或是一个与被测信号相位相 差 pie/2的 GMSK调制信号, 或是可以体现为釆用与被测信号组成的一个自 适应 QPSK调制信号。 同频干扰的功率可以是多样的, 比如同频干扰与被测 信号等功率, 或同频干扰比被测信号高 l-2dB等。 在本实施例中, 釆用的是 对移动终端的下行 TCH 帧和 SACCH 帧施加一个与被测信号进行自适应 QPSK调制的同频干扰, 该同频干扰的功率等于被测信号功率。 步骤 403 , 基站子系统以 26复帧为单位, 对每个 26复帧中属于同一移 动终端的 TCH帧和 SACCH帧施加该同频干扰,并且该同频干扰持续施加到 4个连续的 26复帧上。 具体来说,可以是:对于全速率语音信道,对每个 26复帧中的 1个 SACCH 帧和 24个 TCH帧施加该同频干扰, 并且该同频干扰持续施加到 4个连续的 26复帧上; 对于半速率语音信道来说, 对每个 26复帧中的属于第一移动终 端的 1个 SACCH帧和 12个 TCH帧施加该同频干扰, 并且该同频干扰持续 施加到 4个连续的 26复帧上, 对每个 26复帧中的属于第二移动终端的 1个 SACCH帧和 12个 TCH帧施加该同频干扰, 并且该同频干扰持续施加到 4 个连续的 26复帧上。 同频干扰的持续方式也可以有多种选择, 比如可以对连 续的 4个 26复帧施加, 也可以对连续的 2个或 6个 26复帧施加。 在本实施 例中, 釆用的是对移动终端的每个 26复帧中的 1个 SACCH帧和 24个 TCH 帧施加该同频干扰, 并且该同频干扰持续施加到 4个连续的 26复帧, 如图 9 所示, 为对于全速率语音信道,基站子系统对 TCH帧和 SACCH帧联合施加 干扰的示意图。 如图 10所示, 为对于半速率语音信道, 基站子系统对 TCH 帧和 SACCH帧联合施加干扰的示意图。 步骤 404, 获取施加同频干扰期间移动终端上报的一个或多个测量报告 中的接收信号质量, 接收信号强度等相关参数, 通过对 N ( N=2 )个连续最 近的, 接收信号质量小于特定设置的门限阔值 T6 (比如小于 2 )的测量报告 中的接收信号质量参数值求标准差。 根据基站子系统的具体应用环境和实现特性有多种实现方法, 如方法一 是通过对 N个连续最近的测量报告中的接收信号质量参数值求均值; 方法二 是通过对 N个连续最近的, 接收信号质量小于特定设置的门限阔值 T6 (比 如小于 3 ) 的测量报告中的接收信号质量参数值求标准差; 或者, 方法三是 结合下行测量报告中的接收信号质量, 接收信号强度一起进行获取, 比如只 对含有接收信号强度小于某个门限阔值 T7 的测量报告中的接收信号质量参 数值求均值; 方法四是结合下行测量报告中的接收信号质量, 接收信号强度 一起进行获取, 比如只对含有接收信号强度小于某个门限阔值 T7 的测量报 告中的接收信号质量参数值求标准差。 在本实施例中, 釆用的方法二, 即通 过对 N ( N=2 )个连续最近的,接收信号质量小于特定设置的门限阔值 T6 (比 如小于 2 ) 的测量报告中的接收信号质量参数值求标准差。 步骤 405 , 基站子系统基于步骤 404的获取结果, 与预先设定的门限阔 值进行比较, 若步骤 404的获取结果优于预先设定的门限阔值, 则认为该终 端的干扰抑制能力强, 可能是支持单天线干扰抑制消除的移动终端, 否则就 认为不是支持单天线干扰抑制消除的移动终端。 具体来说, 可以釆用如: 方法一, 若 Ν个连续最近的测量报告中的接收 信号质量参数值的均值小于特定设置的门限阔值 Τ6 (比如小于 3 )就认为该 终端的干扰抑制能力强, 可能是支持单天线干扰抑制消除的移动终端; 方法 二, 若 Ν个连续最近的, 接收信号质量小于特定设置的门限阔值 Τ6 (比如 小于 3 ) 的测量报告中的接收信号质量参数值的标准差小于特定设置的门限 阔值 Τ7 (比如小于 0.05 ) , 就认为该终端的干扰抑制能力强, 可能是支持单 天线干扰抑制消除的移动终端; 或者, 方法三, 如接收信号强度小于某个门 限阔值 Τ8 (比如小于 -70dBm ) 的测量报告中的接收信号质量参数值均值小 于门限阔值 T6 (比如小于 3 ) , 或者, 方法四, 如接收信号强度小于某个门 限阔值 T8 (比如小于 -70dBm ) 的测量报告中的接收信号质量参数值标准差 小于门限阔值 T7 (比如小于 0.05 ) , 就认为该终端的干扰抑制能力强, 可能 是支持单天线干扰抑制消除的移动终端。 对于可能是支持单天线干扰抑制消除的移动终端这样的判断结果, 基站 子系统可以有多种处理方式, 比如方法一, 认为该主动获知移动终端能力的 过程结束, 执行步骤 406; 或者, 方法二, 基站子系统基于结果决定继续施 加另外一轮同频干扰, 同样的, 施加该同频干扰的功率强度和持续时间可以 根据基站子系统的策略来设置, 可以等同于之前一轮的相应设置, 也可以不 同于此。 然后, 基站子系统分析施加该轮同频干扰期间移动终端上报的一个 或多个测量报告中的接收信号质量, 接收信号强度等相关参数, 比如, 这些 参数是否优于一个设定的门限阔值, 该门限阔值可以等同于之前一轮的相应 设置, 也可以不同于此。 以此类推, 直到基站子系统认为该主动获知移动终 端能力的过程结束, 执行步骤 406。 对施加多轮同频干扰后的多次判断结果的处理, 根据基站子系统可根据 具体应用环境和实现特性有多种实现方式。 比如: 釆取最大可能方式, 每一 轮施加同频干扰后的判断结果中, 只要有一次的结果是认为该移动终端具有 单天线干扰抑制消除能力,就认为该移动终端具有单天线干扰抑制消除能力; 或是釆用最强限定原则方式, 每一轮施加同频干扰后的判断结果中, 只有每 次的判断结果都认为该移动终端具有单天线干扰抑制消除能力, 才认为该移 动终端具有单天线干扰抑制消除能力。 对于不是支持单天线干扰抑制消除的移动终端这样的判断结果, 基站子 系统认为该主动获知移动终端能力的过程结束, 执行步骤 406。 步骤 406 , 基站子系统主动获知移动终端的单天线干扰抑制消除能力的 过程结束。
如图 11所示,为本发明实施例的获知移动终端能力的装置,可应用于基 站子系统, 包括测试目标确定单元 111和能力获知单元 112 , 其中: 所述测试目标确定单元 111设置成: 确定待测试单天线干扰抑制消除支 持能力的移动终端, 并告知所述能力获知单元; 所述能力获知单元 112设置成: 对所述待测试单天线干扰抑制消除支持 能力的移动终端的特定类型的下行帧施加一轮或多轮同频干扰, 分析施加同 频干扰期间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动 终端是否具有单天线干扰抑制消除支持能力。 测试目标确定单元 111为可选模块, 能力获知单元 112中可设置默认的 某个或某些终端为待测试单天线干扰抑制消除支持能力的移动终端。 优选地, 所述测试目标确定单元 111是设置成: 才艮据如下信息中的一种 或多种确定待测试单天线干扰抑制消除支持能力的移动终端: ( 1 )移动终端 发送的测量报告中体现移动终端干扰处理能力的参数; ( 2 )对上行的测量结 果; (3 )话务负荷。 所述特定类型的下行帧包括语音信道(TCH )帧和 /或慢速随路控制信道 ( SACCH ) 帧。 优选地, 所述能力获知单元 112是设置成: 将同频干扰信号与被测信号 分别进行 GMSK调制后,再将调制后的同频干扰信号与被测信号进行矢量相 加合成一个下行信号发送给所述移动终端, 所述同频干扰信号是与被测信号 相位相同的干扰信号, 或者是与被测信号相位相差 π/2的干扰信号; 或者, 将同频干扰信号与被测信号直接进行自适应 QPSK调制后, 将调制后的下行 信号发送给所述移动终端。 优选地, 所述能力获知单元 112是设置成: 对所述待测试单天线干扰抑 制消除支持能力的移动终端的特定类型的下行帧施加一轮同频干扰, 分析施 加同频干扰期间所述移动终端上报的测量报告中的接收信号参数, 并基于分 析结果确定是否继续施加同频干扰, 若确定继续施加同频干扰, 则对所述移 动终端的特定类型的下行帧继续施加同频干扰, 直到判断出所述移动终端是 否具有单天线干扰抑制消除支持能力。 优选地, 所述能力获知单元 112是设置成: 对所述移动终端的特定类型 的下行帧施加一轮同频干扰后, 当施加同频干扰得到的分析结果优于预先设 定的门限阔值, 则判断所述移动终端具有单天线干扰抑制消除支持能力; 或 者, 对所述移动终端的特定类型的下行帧施加多轮同频干扰后, 若其中一轮 施加同频干扰得到的分析结果优于预先设定的门限阔值, 则判断所述移动终 端具有单天线干扰抑制消除支持能力; 或者, 对所述移动终端的特定类型的 下行帧施加多轮同频干扰后, 若每一轮施加同频干扰得到的分析结果均优于 预先设定的门限阔值, 则判断所述移动终端具有单天线干扰抑制消除支持能 力。 优选地, 所述接收信号参数为接收信号质量参数, 或者为接收信号质量 参数和接收信号强度参数; 所述能力获知单元 112是设置成: 在分析施加同频干扰期间所述移动终 端上报的测量报告中的接收信号参数时:对 N个连续最近的测量报告中的接 收信号质量参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对 N个连续最近的、接收信号质量参数值小于第一门限阔值的测量报告中的 接收信号质量参数值求标准差, 判断得到的结果是否小于第二门限阔值; 或 者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号 质量参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对含有 接收信号强度参数值小于第三门限阔值的测量报告中的接收信号质量参数值 求标准差, 判断得到的结果是否小于第二门限阔值; 其中, N为整数。 上述获知移动终端能力的装置可均位于 BTS 中, 也可以部分位于 BTS 中, 部分位于 BSC中 (比如测试目标确定单元 111位于 BSC中, 能力获知 单元 112位于 BTS中; 或者测试目标确定单元 111位于 BSC中, 能力获知 单元 112中的一部分位于 BTS中, 一部分位于 BSC中) , 具体可有多种实 现方式, 本发明不对此做具体限定。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。 尽管本发明结合特定实施例进行了描述, 但是对于本领域的技术人员来 说, 可以在不背离本发明的精神或范围的情况下进行修改和变化。 这样的修 改和变化被视作在本发明的范围和附加的权利要求书范围之内。
工业实用性 本发明提供一种基站子系统获知移动终端的能力的方法和装置, 通过对 移动终端施加同频干扰进行测试, 能够在移动终端不上报其单天线干扰抑制 消除支持能力的情况下, 主动地检测出移动终端的单天线干扰抑制消除的支 持能力, 从而可以有效地使用单天线干扰抑制消除技术, 使 GSM网络在干 扰受限的环境中, 依然得到很好的整体网络性能。

Claims

权 利 要 求 书
1、 一种基站子系统获知移动终端能力的方法, 包括: 基站子系统对待测试单天线干扰抑制消除支持能力的移动终端的特定类 型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰期间所述移动终端 上报的测量报告中的接收信号参数, 判断所述移动终端是否具有单天线干扰 抑制消除支持能力。
2、 如权利要求 1所述的方法, 其中: 在基站子系统对待测试单天线干扰抑制消除支持能力的移动终端的特定 类型的下行帧施加一轮或多轮同频干扰之前, 所述方法还包括: 所述基站子系统确定所述待测试单天线干扰抑制消除支持能力的移动终 端; 其中, 所述基站子系统根据如下信息中的一种或多种确定所述待测试单 天线干扰抑制消除支持能力的移动终端:
( 1 )移动终端发送的测量报告中体现移动终端干扰处理能力的参数; ( 2 )对上行的测量结果;
( 3 )话务负荷。
3、 如权利要求 1所述的方法, 其中: 所述特定类型的下行帧包括语音信道(TCH )帧和 /或慢速随路控制信道 ( SACCH ) 帧。
4、 如权利要求 1所述的方法, 其中: 在所述基站子系统对所述待测试单天线干扰抑制消除支持能力的移动终 端的特定类型的下行帧施加一轮或多轮同频干扰的步骤中, 所述基站子系统将同频干扰信号与被测信号分别进行高斯滤波最小移频 键控 ( GMSK )调制后, 再将调制后的同频干扰信号与被测信号进行矢量相 加合成一个下行信号发送给所述移动终端; 所述同频干扰信号是与被测信号 相位相同的干扰信号, 或者是与被测信号相位相差 π/2的干扰信号; 或者, 所述基站子系统将同频干扰信号与被测信号直接进行自适应正交相移键 控(QPSK )调制后, 将调制后的下行信号发送给所述移动终端。
5、 如权利要求 1所述的方法, 其中: 所述基站子系统对所述待测试单天线干扰抑制消除支持能力的移动终端 的特定类型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰期间所述 移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否具有单 天线干扰抑制消除支持能力的步骤包括: 所述基站子系统对所述待测试单天线干扰抑制消除支持能力的移动终端 的特定类型的下行帧施加一轮同频干扰, 分析施加同频干扰期间所述移动终 端上报的测量报告中的接收信号参数, 并基于分析结果确定是否继续施加同 频干扰, 若确定继续施加同频干扰, 则对所述移动终端的特定类型的下行帧 继续施加同频干扰, 直到判断出所述移动终端是否具有单天线干扰抑制消除 支持能力。
6、 如权利要求 1 ~ 5中任意一项所述的方法, 其中: 在所述基站子系统对所述移动终端的特定类型的下行帧施加一轮同频干 扰,分析施加同频干扰期间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否具有单天线干扰抑制消除支持能力的步骤中, 当施加同频干扰得到的分析结果优于预先设定的门限阔值, 则所述基站 子系统判断所述移动终端具有单天线干扰抑制消除支持能力。
7、 如权利要求 1 ~ 5中任意一项所述的方法, 其中: 在所述基站子系统对所述移动终端的特定类型的下行帧施加多轮同频干 扰,分析施加同频干扰期间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否具有单天线干扰抑制消除支持能力的步骤中, 若其中一轮施加同频干扰得到的分析结果优于预先设定的门限阔值, 则 所述基站子系统判断所述移动终端具有单天线干扰抑制消除支持能力;或者 , 若每一轮施加同频干扰得到的分析结果均优于预先设定的门限阔值, 则 所述基站子系统判断所述移动终端具有单天线干扰抑制消除支持能力。
8、 如权利要求 1 ~ 5中任意一项所述的方法, 其中: 所述接收信号参数为接收信号质量参数, 或者为接收信号质量参数和接 收信号强度参数; 所述分析施加同频干扰期间所述移动终端上报的测量报告中的接收信号 参数的步骤包括: 对 N个连续最近的测量报告中的接收信号质量参数值求均值,判断得到 的结果是否小于第一门限阔值; 或者, 对 N个连续最近的、接收信号质量参数值小于第一门限阔值的测量报告 中的接收信号质量参数值求标准差 ,判断得到的结果是否小于第二门限阔值; 或者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号 质量参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号 质量参数值求标准差, 判断得到的结果是否小于第二门限阔值; 其中, N为整数。
9、 一种获知移动终端能力的装置, 包括能力获知单元, 其中: 所述能力获知单元设置成: 对待测试单天线干扰抑制消除支持能力的移 动终端的特定类型的下行帧施加一轮或多轮同频干扰, 分析施加同频干扰期 间所述移动终端上报的测量报告中的接收信号参数, 判断所述移动终端是否 具有单天线干扰抑制消除支持能力。
10、 如权利要求 9所述的装置, 还包括测试目标确定单元, 其中: 所述测试目标确定单元设置成: 根据如下信息中的一种或多种确定待测 试单天线干扰抑制消除支持能力的移动终端,并告知所述能力获知单元: ( 1 ) 移动终端发送的测量报告中体现移动终端干扰处理能力的参数; ( 2 )对上行 的测量结果; (3 )话务负荷。
11、 如权利要求 9所述的装置, 其中: 所述特定类型的下行帧包括语音信道(TCH )帧和 /或慢速随路控制信道 ( SACCH ) 帧。
12、 如权利要求 9所述的装置, 其中: 所述能力获知单元是设置成: 将同频干扰信号与被测信号分别进行高斯 滤波最小移频键控 ( GMSK )调制后, 再将调制后的同频干扰信号与被测信 号进行矢量相加合成一个下行信号发送给所述移动终端, 所述同频干扰信号 是与被测信号相位相同的干扰信号, 或者是与被测信号相位相差 π/2的干扰 信号; 或者, 将同频干扰信号与被测信号直接进行自适应正交相移键控 ( QPSK )调制后, 将调制后的下行信号发送给所述移动终端。
13、 如权利要求 9所述的装置, 其中: 所述能力获知单元是设置成: 对所述待测试单天线干扰抑制消除支持能 力的移动终端的特定类型的下行帧施加一轮同频干扰, 分析施加同频干扰期 间所述移动终端上报的测量报告中的接收信号参数, 并基于分析结果确定是 否继续施加同频干扰, 若确定继续施加同频干扰, 则对所述移动终端的特定 类型的下行帧继续施加同频干扰, 直到判断出所述移动终端是否具有单天线 干扰抑制消除支持能力。
14、 如权利要求 9 ~ 13中任意一项所述的装置, 其中: 所述能力获知单元是设置成: 对所述移动终端的特定类型的下行帧施加 一轮同频干扰后,当施加同频干扰得到的分析结果优于预先设定的门限阔值, 则判断所述移动终端具有单天线干扰抑制消除支持能力; 或者, 对所述移动 终端的特定类型的下行帧施加多轮同频干扰后, 若其中一轮施加同频干扰得 到的分析结果优于预先设定的门限阔值, 则判断所述移动终端具有单天线干 扰抑制消除支持能力; 或者, 对所述移动终端的特定类型的下行帧施加多轮 同频干扰后, 若每一轮施加同频干扰得到的分析结果均优于预先设定的门限 阔值, 则判断所述移动终端具有单天线干扰抑制消除支持能力。
15、 如权利要求 9 ~ 13中任意一项所述的装置, 其中: 所述接收信号参数为接收信号质量参数, 或者为接收信号质量参数和接 收信号强度参数; 所述能力获知单元是设置成: 在分析施加同频干扰期间所述移动终端上 报的测量报告中的接收信号参数时:对 N个连续最近的测量报告中的接收信 号质量参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对 N 个连续最近的、 接收信号质量参数值小于第一门限阔值的测量报告中的接收 信号质量参数值求标准差, 判断得到的结果是否小于第二门限阔值; 或者, 对含有接收信号强度参数值小于第三门限阔值的测量报告中的接收信号质量 参数值求均值, 判断得到的结果是否小于第一门限阔值; 或者, 对含有接收 信号强度参数值小于第三门限阔值的测量报告中的接收信号质量参数值求标 准差, 判断得到的结果是否小于第二门限阔值; 其中, N为整数。
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