WO2015043285A1 - 一种校正信号发射方法和基站 - Google Patents

一种校正信号发射方法和基站 Download PDF

Info

Publication number
WO2015043285A1
WO2015043285A1 PCT/CN2014/082159 CN2014082159W WO2015043285A1 WO 2015043285 A1 WO2015043285 A1 WO 2015043285A1 CN 2014082159 W CN2014082159 W CN 2014082159W WO 2015043285 A1 WO2015043285 A1 WO 2015043285A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
time slot
signal
slot position
transmitting
Prior art date
Application number
PCT/CN2014/082159
Other languages
English (en)
French (fr)
Inventor
易雄书
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 EP14847528.8A priority Critical patent/EP3038310B1/en
Publication of WO2015043285A1 publication Critical patent/WO2015043285A1/zh
Priority to US15/079,654 priority patent/US10631290B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present invention relates to the field of communications, and in particular, to a correction signal transmitting method and a base station. Background technique
  • hybrid networks that is, at least two networks simultaneously cover and simultaneously provide services to users.
  • Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network and Time Division-Long Term Evolution (TD-LTE) network have achieved hybrid coverage, ie TD - SCDMA and TD-LTE hybrid networking scenarios, because the scenario is easy to meet the needs of users, so the scenario is widely used.
  • the networks in the above hybrid network are all using the Time Division Duplex (TDD) system for data communication, for example, TD-SCDMA network and TD-LTE network.
  • TDD Time Division Duplex
  • the uplink frequency and the downlink frequency are the same.
  • the downlink channel information can be estimated through the uplink channel information.
  • the premise of the estimation is that the remote radio unit (RRU) needs to be completed.
  • Channel correction The TD-SCDMA network and the TD-LTE network complete the RRU channel correction by transmitting a correction signal in the Guard Period (GP).
  • GP Guard Period
  • the frequencies used by the networks in the hybrid network are similar or the same, for example: TD-SCDMA network and TD-LTE network, so in the TD-SCDMA and TD-LTE hybrid networking scenarios, the TD-SCDMA network
  • the signal may leak into the GP of the TD-LTE network, causing interference to the correction signal in the GP; the signal of the TD-LTE network may also leak into the GP of the TD-SCDMA network, and the correction in the GP will also be performed.
  • an embodiment of the present invention provides a method for transmitting a correction signal, including:
  • a base station of the first network acquires a transmission slot position in a guard slot GP for transmitting a correction signal, the transmission slot position being determined based on a slot configuration of the second network and/or a signal transmitted by the second network And the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold;
  • the second network is a network included in the hybrid network where the first network is located;
  • the base station transmits the correction signal at the transmit slot position.
  • the base station of the first network acquires a transmit time slot position in a GP for transmitting a correction signal, including:
  • the base station of the first network calculates the number included in the GP when transmitting in the GP for transmitting the correction signal based on the slot configuration of the first network and the slot configuration of the second network
  • the semaphore of the second network is smaller than the position of the transmission slot of the preset semaphore; or
  • the base station of the first network calculates, based on the signal transmitted by the second network, a transmission time slot position of the second network included in the GP for transmitting the correction signal that is smaller than a preset signal amount.
  • the base station of the first network is based on a time slot configuration of the first network and the second network
  • the time slot configuration when the GP is used to transmit the correction signal, the semaphore of the second network included in the GP is smaller than the transmission time slot position of the preset semaphore, and includes:
  • the base station of the first network calculates, based on the slot configuration of the first network and the slot configuration of the second network, that the GP for transmitting the correction signal is not used for transmitting signals in the second network. The location of the transmission slot with the same slot position.
  • the base station of the first network calculates, according to the signal sent by the second network, a transmit correction signal
  • the semaphore of the second network included in the GP is smaller than the location of the transmission slot of the preset semaphore, and includes:
  • the base station of the first network calculates, based on the signal transmitted by the second network, the power generated by the signal transmitted by the second network on each time domain sample of the GP for transmitting the correction signal;
  • the base station selects a preset length from the GP and includes the number of consecutive interference time domain samples A time slot position smaller than a preset threshold is used as a transmission time slot position, wherein the interference time domain sample refers to a time domain sample whose power is less than a preset interference power threshold.
  • the base station of the first network calculates, according to the signal sent by the second network, a transmit correction signal
  • the semaphore of the second network included in the GP is smaller than the location of the transmission slot of the preset semaphore, and includes:
  • the base station of the first network calculates, based on the signal transmitted by the second network, the power generated by the signal transmitted by the second network on each time domain sample of the GP for transmitting the correction signal;
  • the base station selects a preset length from the GP and includes a slot position in which the number of consecutive interference time domain samples is less than a preset threshold as a transmission slot position, where the interference time domain sample is Refers to the time domain sample whose power is less than the preset interference power threshold.
  • the base station of the first network acquires a transmit time slot position in a guard time slot GP for transmitting a correction signal, including:
  • the base station of the first network receives indication information sent by the network side device, where the indication information indicates a location of a transmission slot in a guard slot GP for transmitting a correction signal, where the location of the transmission slot is based on the network side device
  • the slot configuration of the first network and the slot configuration of the second network are determined, and the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold.
  • an embodiment of the present invention provides a base station, where the base station is a base station of a first network, where the base station includes: an acquiring unit and a transmitting unit, where:
  • the acquiring unit is configured to acquire a transmit slot position in a guard slot GP for transmitting a correction signal, where the slot position is determined based on a slot configuration of the second network or a signal transmitted by the second network. And the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold; the second network is a network included in the hybrid network where the first network is located;
  • the transmitting unit is configured to transmit the correction signal at the transmitting time slot position.
  • the acquiring unit is specifically configured to calculate, according to a time slot configuration of the first network and a time slot configuration of the second network, a signal for transmitting a correction signal.
  • the signal amount of the second network included in the GP is smaller than the location of the transmission time slot of the preset semaphore; or
  • the obtaining unit is specifically configured to calculate, for use, a transmission correction based on a signal transmitted by the second network
  • the signal amount of the second network included in the GP of the signal is smaller than the transmission slot position of the preset semaphore.
  • the acquiring unit is specifically configured to use the time slot configuration of the first network and the second network The time slot configuration calculates a transmission slot position within the GP for transmitting the correction signal that is not the same as the slot position for transmitting the signal in the second network.
  • the acquiring unit is specifically configured to calculate the second network based on a signal that is sent by the second network
  • the transmitted signal is produced at each time domain sample of the GP for transmitting the correction signal; and the preset length is selected from the GP and the number of consecutive interference time domain samples is less than the preset width
  • the slot position of the value is used as the slot position of the transmission, where the interference time domain sample refers to a time domain sample whose power is less than the preset interference power threshold.
  • the acquiring unit is specifically configured to calculate the second network based on a signal that is sent by the second network
  • the transmitted signal is energy produced on each correction symbol of the GP for transmitting the correction signal; wherein the length of the correction symbol is equal to the length of the correction signal; and energy is selected from the correction symbols included in the GP The smallest correction symbol is used as the transmission slot position.
  • the acquiring unit is specifically configured to receive indication information that is sent by the network side device, where the indication information indicates a protection time slot GP for transmitting the correction signal.
  • a transmission slot position the transmission slot position is determined by the network side device based on a slot configuration of the first network and a slot configuration of the second network, and interference of a signal transmitted by the second network is less than The slot position of the preset interference threshold.
  • the base station of the first network acquires a transmission slot position in a guard slot GP for transmitting a correction signal, where the slot position is based on a slot configuration of the second network and/or a second network transmission. And determining, by the signal, that the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold; the second network is a network included in the hybrid network in which the first network is located; The transmit slot position transmits the correction signal. In this way, the time slot position at which the correction signal is transmitted is less interfered by the signal transmitted by the second network, so that the interference of the correction signal in the hybrid network can be reduced.
  • FIG. 1 is a schematic flowchart of a method for transmitting a correction signal according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another method for transmitting a correction signal according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an embodiment of the present invention. A variety of optional carrier configuration diagrams;
  • FIG. 6 is a schematic flowchart of another method for transmitting a correction signal according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a scenario according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention. detailed description
  • the hybrid network in which the first network is located may be any hybrid network in the communication field, for example, a hybrid network of TD-SCDMA and TD-LTE.
  • the first network may be any one of the hybrid networks
  • the second network is any one of the hybrid networks except the first network, for example: the first network is a TD-SCDMA network, and the second
  • the network can be a TD-LTE network; for example, the first network is a TD-LTE network, and the second network can be a TD-SCDMA network.
  • the base station in the embodiment of the present invention may be a base station of a TD-SCDMA network or a base station of a TD-LTE network.
  • the embodiment of the present invention focuses on the hybrid networking of the TD-SCDMA and the TD-LTE as an example, but the embodiment of the present invention is not limited.
  • GSM global system for mobile communication
  • CDMA code division Code division multiple access
  • WCDMA wideband code division multiple access
  • UMTS universal mobile telecommunication system
  • general packet radio Service general packet radio service, GPRS for short
  • LTE long term evolution
  • LTE-A advanced long term evolution advanced
  • WiMAX global interconnected microwave access
  • a base station may be a device that communicates with a user equipment (UE) or other communication station, such as a relay station, where the base station can provide communication in a specific physical area. cover.
  • the base station may be a base transceiver station (Base Transceiver Station, BTS for short) or a base station controller (BSC) in GSM or CDMA; or may be a Node B in UMTS (Node B, abbreviated as It is a radio network controller (RNC) in NB or UMTS; it may also be an evolved base station (Evolutional Node B, referred to as ENB or eNodeB) in LTE; or it may be a TD-SCDMA network.
  • the base station; or the other access network device that provides the access service in the wireless communication network, the present invention is not limited.
  • the UEs may be distributed throughout the wireless network, and each UE may be static or mobile.
  • a UE may be referred to as a terminal, a mobile station, a subscriber unit, a station, or the like.
  • the UE can be a cellular phone, a personal digital assistant (PDA), a wireless modem (modem), a wireless communication device, a handheld device, a laptop computer, a cordless phone. (cordless phone), wireless local loop (WLL), etc.
  • PDA personal digital assistant
  • modem wireless modem
  • WLL wireless local loop
  • the correction signal is not limited in the embodiment of the present invention.
  • the correction signal may be a Peak to Average Power Ratio (PAPR) signal, or simply a low peak-to-average ratio signal.
  • PAPR Peak to Average Power Ratio
  • the method includes: 101.
  • the base station of the first network acquires a transmit slot position in a GP for transmitting a correction signal, where the transmit slot position is determined based on a slot configuration of the second network and/or a signal transmitted by the second network, And the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold; the second network is the network included in the hybrid network where the first network is located.
  • the preset interference threshold may be set by a user, or may be preset in a communication system.
  • the preset interference threshold may be 0.
  • the interference of the signal transmitted by the second network which is smaller than the preset interference threshold, may specifically refer to a time slot position where the correction signal transmitted by the first network is less interfered by the signal transmitted by the second network than the preset interference threshold.
  • the interference of the signal transmitted by the second network in this embodiment may be the interference generated by the signal transmitted by the second network or the power or energy generated by the signal transmitted by the second network to obtain the signal transmitted by the second network.
  • the preset interference threshold is 0, that is, the transmission slot position does not include the signal transmitted by the second network, so that the correction signal transmitted at the transmission slot position has no interference.
  • the location of the transmit time slot in the GP that is used by the base station of the first network to obtain the correction signal may be that the base station obtains a transmit time slot position in the GP for transmitting the correction signal by using the base station; Receiving, by the network side device, the transmission slot position indication information in the GP for transmitting the correction signal, so as to acquire the transmission slot position in the GP according to the indication information; or the base station directly acquiring the transmission correction The location of the transmit slot in the GP of the signal.
  • the foregoing transmitting time slot position is determined based on a time slot configuration of the second network and/or a signal transmitted by the second network, which may be understood to be that the foregoing time slot position is based on a time slot configuration of the second network. Determining, or the above transmitting time slot position is determined based on a signal transmitted by the second network, or the transmitting time slot position is determined based on a time slot configuration of the second network and a signal transmitted by the second network.
  • the base station transmits the correction signal at the transmitting time slot position.
  • the foregoing transmitting may be specifically transmitting the correction signal by using a ZC sequence.
  • the base station of the first network acquires a transmission slot position in a guard slot GP for transmitting a correction signal, where the slot position is based on a slot configuration of the second network and/or a second network transmission. Determined by the signal, and the interference of the signal transmitted by the second network is less than the preset interference gate a limited time slot position; the second network is a network included in the hybrid network in which the first network is located; and the base station transmits the correction signal in the transmit time slot position. In this way, the time slot position at which the correction signal is transmitted is less interfered by the signal transmitted by the second network, so that the interference of the correction signal in the hybrid network can be reduced.
  • 2 is a schematic flowchart of another method for transmitting a correction signal according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • the base station of the first network calculates a transmit slot position in a GP for transmitting a correction signal, where the transmit slot position is calculated based on a slot configuration of the second network and/or a signal transmitted by the second network, And the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold; the second network is the network included in the hybrid network where the first network is located.
  • step 201 may be to dynamically calculate the location of the transmitting time slot, or statically calculate the location of the transmitting time slot.
  • the dynamic calculation may refer to calculating the position of the transmission time slot in the GP at the time when the correction signal needs to be transmitted, so that the position of the transmission time slot may be changed according to the signal of the second network.
  • the static calculation may mean pre-calculating the above-mentioned transmission slot position, i.e., the transmission slot position may be fixed.
  • step 201 may specifically include:
  • the base station of the first network calculates the second network included in the GP when transmitting in the GP for transmitting the correction signal based on the slot configuration of the first network and the slot configuration of the second network
  • the semaphore is less than the position of the transmission slot of the preset semaphore.
  • the smaller the signal quantity of the second network included in the location of the transmission slot the smaller the interference of the transmission in the position of the transmission slot by the signal transmitted by the second network.
  • the signal amount of the second network included in the GP is smaller than the transmission slot position of the preset signal amount.
  • the slot position in the GP that is not the same as the slot position for transmitting the signal in the second network is calculated as the above-mentioned transmission slot position. That is, step 201 may specifically include:
  • the base station of the first network calculates, based on the slot configuration of the first network and the slot configuration of the second network, a slot in the GP for transmitting the correction signal and not used to transmit the signal in the second network.
  • the same location of the transmission slot That is, the time slot configuration of the first network and the time slot configuration of the second network are obtained in advance, and the time slot configuration of the first network may specifically include the time slot configuration of the GP.
  • the time slot position used for transmitting the signal in the foregoing second network may include: a downlink time slot for transmitting a downlink signal, an uplink time slot for transmitting an uplink signal, and a downlink pilot time slot (Downlink Pilot Time). Slot, DwPTS), GP or Uplink Pilot Time Slot (UpPTS).
  • the uplink time slot (or uplink subframe) and the downlink time slot (or downlink subframe) of TDD-LTE are both 1 millisecond (ms), and the ratio of DwPTS, GP, and UpPTS is 10:2. :2, ie DwPTS: GP: UpPTS is equal to 10:2:2, DwPTS, GP and UpPTS are 21952Ts, 4384Ts and 4384Ts, respectively, where Ts represents the time point of the sample, and ITs is equal to 1/(30.72* 10 ⁇ 6) seconds. .
  • the uplink and downlink time slots of TDD SCDMA are both 675 microseconds (us), DwPTS is 75 us, GP is 75 us, and UpPTS is 125 us.
  • the starting position of the GP area of TDD-LTE leads the GP area starting position of TD-SCDMA by 60.4us, that is, DwPTS and TDD of TD-SCDMA.
  • the LTE GP has the same 60.4 us slot position.
  • the DwPTS of TD-SCDMA has a downlink signal of 60.4 us, which may interfere with the GP of TDD-LTE, that is, the correction signal transmitted in 0-60.4us of the GP of TDD-LTE may have interference.
  • the time slot position of the above-mentioned transmitting time slot is 60.4 us+Xus in the GP
  • X represents an offset value
  • the value of X can refer to the propagation delay of the downlink signal transmitted by the second network to the first network.
  • the downlink signal may include a network normal public signal and a traffic signal, and also includes a transmitted correction signal.
  • the uplink time slot (or uplink subframe) and the downlink time slot (or downlink subframe) of TDD-LTE are both 1 millisecond (ms), and the ratio of DwPTS, GP, and UpPTS is 3:9.
  • ms millisecond
  • DwPTS, GP, and UpPTS are 3:9.
  • ie DwPTS: GP: UpPTS is equal to 3:9:2
  • DwPTS, GP and UpPTS are 6592Ts, 19744Ts and 4384Ts, respectively.
  • the uplink and downlink time slots of TDD SCDMA are both 675 microseconds (us), DwPTS is 75us, GP is 75us, and UpPTS is 125us.
  • the downlink signal of 234.4us in TD-SCDMA may interfere with the GP of TDD-LTE, that is, the correction signal transmitted in 0-234.4us of the GP of TDD-LTE may have interference.
  • the above-mentioned transmission slot position can be selected as the slot position of 234.4us+Xus in the GP.
  • the uplink time slot (or uplink subframe) and the downlink time slot (or downlink subframe) of TDD-LTE are both 1 millisecond (ms), and the ratio of DwPTS, GP, and UpPTS is 3:9.
  • ms millisecond
  • DwPTS, GP, and UpPTS are 3:9.
  • ie DwPTS: GP: UpPTS is equal to 3:9:2
  • DwPTS, GP and UpPTS are 6592Ts, 19744Ts and 4384Ts, respectively.
  • the uplink and downlink time slots of TDD SCDMA are both 675 us, DwPTS is 75 us, GP is 75 us, and UpPTS is 125 us.
  • TD-SCDMA has 210.4us downlink signal that may interfere with TDD-LTE GP, that is, the correction signal transmitted in 0-210.4us in TDD-LTE GP may have interference.
  • the above-mentioned transmission slot position can be selected as the slot position of 210.4us+Xus in the GP.
  • the TDD-LTE downlink signal has no influence on the correction signal in the GP of the TD-SCDMA in the above three scenarios.
  • the TDD-LTE channel is corrected, due to the interference signal leaked by other systems (such as TD-SCDMA), when the LTE receiving channel arrives, the LTE receiving channel is turned off, so the interference signal cannot enter, so there is no impact. However, it may also interfere with the correction signal in the TD-SCDMA GP.
  • the two networks can jointly consider the optimal correction signal transmission position of the two networks according to the time slot configuration and the correction signal transmission position.
  • the channel correction signal start position can be as follows:
  • the foregoing correction signal may specifically include a transmit channel correction signal and a receive channel correction signal, that is, the transmit time slot position may specifically refer to a transmit channel correction signal start position or a receive channel correction signal start position.
  • the start position of the transmit channel correction signal for the TDD-LTE network may be any position within the GP, such that the location of the transmit time slot in the TDD-LTE network in this embodiment may specifically refer to the transmit position of the receive channel correction signal, that is, The above correction signal of the TDD-LTE network may specifically refer to a channel correction signal.
  • the GP of the TDD-LTE network and the GP of the TD-SCDMA network have the same slot position in the time slot, so that the correction signal transmitted by the TDD-LTE network in the GP may also be applicable to the TD-SCDMA network.
  • the correction signal is transmitted in the GP, so that the embodiment of the present invention can separately calculate the transmission slot positions of the multiple networks included in the hybrid network to reduce the interference between the correction signals.
  • step 201 may specifically include:
  • the base station of the first network calculates, based on the signal transmitted by the second network, a transmission time slot position of the second network included in the GP for transmitting the correction signal that is smaller than a preset signal amount.
  • the signal transmission amount of the second network included in the GP at this time may be calculated to be smaller than the transmission time slot position of the preset signal amount.
  • the semaphore of the second network included in the GP is smaller than the preset semaphore by the calculation of the power of each time domain sample of the GP. Because when a time domain sample in the GP includes a signal of the second network, the time domain sample generates power, and the power is proportional to the signal amount of the second network. Specifically, by calculating the energy of each GP correction symbol, the semaphore of the second network included in the GP is smaller than the preset semaphore.
  • the correction symbol when a time domain sample in the GP includes a signal of the second network, the correction symbol generates energy, and the energy is proportional to the signal amount of the second network.
  • the above correction symbol may specifically be a length of time during which a single correction signal continues, that is, the correction symbol can understand the length and the correction signal. The same slot position. For example: GP is 100us, and a correction signal is 10us in length, then the GP can include a maximum of 10 correction symbols.
  • step 201 may include:
  • the base station of the first network calculates, based on the signal transmitted by the second network, the power generated by the signal transmitted by the second network on each time domain sample of the GP for transmitting the correction signal;
  • the base station selects a preset length from the GP and includes a slot position in which the number of consecutive interference time domain samples is less than a preset threshold as a transmission slot position, where the interference time domain sample refers to power Time domain samples that are less than the preset interference power threshold.
  • the time domain sample may be preset, for example, 30 or 50 time domain samples are set in the GP, and the power of each time domain sample is calculated. Since in the actual application, the signal of the second network leaks into the GP of the first network, it usually interferes with a time slot, so that the time slot can include one or more time domain samples, so that the power calculation can be performed. Get this time slot. On the contrary, it is possible to obtain a slot position in which the preset length is selected and the number of consecutive interference time domain samples is smaller than the preset threshold as the transmission slot position.
  • the preset length may specifically be equal to or greater than the length of the correction signal.
  • the foregoing base station may select a preset length from the GP and the slot position that includes the number of consecutive interference time domain samples that is smaller than the preset threshold.
  • the base station determines the time domain sample included in the GP and whose power is less than the interference power threshold as no interference time domain sample, and marks the time domain sample with the ⁇ mark; the power included in the GP and the power is greater than or equal to the interference power threshold. Time domain samples identified as having interference, and marked with "0";
  • the base station selects a slot position from the GP that has a preset length and includes consecutive ⁇ time domain samples less than the preset threshold as the transmission slot position.
  • the power of each time domain sample may also be specifically processed, for example: alpha (alpha) filtering.
  • the power of the time domain sample calculated above may be specifically calculated by using the following formula: Where p (n) represents the time domain sample power, n represents the time domain sample number, and r ( ) represents the time domain sample Receive signal, N represents the total number of time domain samples in the GP.
  • the power of the time domain samples can be calculated, and the above-mentioned transmission time slot position can be selected according to the power of each time domain sample.
  • step 201 may include:
  • a base station of the first network calculates, based on a signal transmitted by the second network, energy generated by the signal transmitted by the second network on each correction symbol of a GP for transmitting a correction signal; wherein a length of the correction symbol Equal to the length of the correction signal;
  • the base station selects the correction symbol with the smallest energy from the correction symbols included in the GP, and uses the correction symbol as the transmission slot position.
  • the length of the GP is 100us and the length of the correction symbol is 10us, then there are 10 possible corrected transmission positions, and the method of obtaining the interference power can be obtained by segmentation, such as
  • L represents the number of time domain samples in each segment
  • N represents the total number of GP samples.
  • the above-mentioned correction symbol may be a slot position whose length is the same as the length of the correction signal, and the above-mentioned correction symbol as the transmission slot position may specifically be the slot position corresponding to the correction symbol as the transmission slot. position.
  • the above correction symbols may be preset. Since in the practical application, the signal of the second network leaks into the GP of the first network, the at least one correction symbol is usually interfered, so that at least one correction symbol generates energy, so that the at least one correction symbol can be obtained by calculating the energy. . Instead, the correction symbol with the lowest energy is selected and the correction symbol is used as the transmission slot position.
  • the foregoing base station selects a correction symbol with the smallest energy from the correction symbols included in the GP, and the correction symbol is used as the location of the transmission slot, which may specifically include:
  • the base station selects a correction symbol with the smallest energy from the correction symbols included in the GP, and calculates interference power of each subcarrier in the correction symbol, and selects at least one subcarrier in the correction symbol that is less than a specific threshold.
  • the carrier acts as a subcarrier for transmitting the correction signal in the location of the transmission slot.
  • the receiving end may further perform noise reduction processing on the channel information (for example, channel estimation value, phase, etc.) according to the at least two subcarriers of the transmission correction signal.
  • the calculating the energy of the correction symbol may be specifically calculated as follows:
  • the base station performs a Fast Fourier Transform (FFT) transform on the corrected symbols in the GP, wherein the FFT size can use the FFT size in the uplink service or the downlink service. That is, the time domain signal for correcting the symbol is converted to the frequency domain signal by the above FFT.
  • FFT Fast Fourier Transform
  • the base station calculates the energy of the corrected symbol after the FFT conversion.
  • the power of each segment of the correction symbol can be calculated, and the above-mentioned transmission slot position can be selected according to the power of each correction symbol.
  • the base station of the first network calculates the second network included in the GP when transmitting in the GP for transmitting the correction signal based on the slot configuration of the first network and the slot configuration of the second network
  • the semaphore is less than the plurality of transmit time slot positions of the first predetermined semaphore; or
  • the base station of the first network calculates, based on the signal transmitted by the second network, a transmission slot position of the second network included in the plurality of transmission slot positions that is smaller than a second preset semaphore.
  • the second preset signal quantity is smaller than the first preset signal quantity, so that a plurality of different calculation manners can be implemented to obtain a transmission time slot position.
  • the base station transmits the correction signal at the transmitting time slot position.
  • FIG. 6 is a schematic flowchart of another method for transmitting a correction signal according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • the base station of the first network receives the indication information sent by the network side device, where the indication information indicates a location of a transmission slot in a guard slot GP for transmitting a correction signal, where the location of the transmission slot is based on the network side device.
  • the slot configuration of the first network and the slot configuration of the second network are determined, and the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold.
  • the network side device may be an operation, management, and maintenance (OAM) unit.
  • OAM operation, management, and maintenance
  • the specific time that the OAM unit sends to the base station may be the location of the transmission slot of the multiple scenarios (for example, the table in the second embodiment), and the base station selects the current correction signal according to the current slot configuration scenario. Transmit slot position.
  • the base station transmits the correction signal at the transmit time slot position.
  • the location of the transmitting time slot is calculated by the network side device, and the base station receives the indication information, thereby reducing interference of the correction signal in the hybrid networking.
  • a first base station 701 including a TD-SCDMA network, a second base station 702 of a TD-LTE network, and a user equipment 703 are included.
  • the first base station 701 and the second base station 702 perform data communication to the user equipment 703 at the same time or at a particularly similar time.
  • the carrier configuration shown in FIG. 3 will be described below as an example.
  • the carrier of TD-SCDMA is 1.025 ms shorter than that of TD-LTE.
  • the carrier of TD-LTE When the carrier of TD-LTE is switched to GP, the carrier of TD-SCDMA is still in DwPTS, and the GP of TD-LTE and DwPTS of TD-SCDMA are 60.4us. Same slot position. That is, the DwPTS of TD-SCDMA still transmits the downlink signal within the 60.4us, and the receiving channel of the TD-LTE base station is turned on in the GP, if the correction signal is transmitted within 0-60.4us of the GP, and TD- The downlink signal transmitted by the SCDMA DwPTS in this 60.4us is likely to leak to the receiving channel of the TD-LTE base station, thereby producing interference to the correction signal in the GP.
  • the 60.4 us-Xus in the GP can be selected as the above-mentioned transmitting time slot position in the various manners described above, that is, the 60.4 us-Xus transmitting correction signal in the GP.
  • the following is a device embodiment of the present invention.
  • the device embodiment of the present invention is used to perform the method for implementing the first to second embodiments of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, and the specific technical details are not disclosed. Please refer to Embodiment 1 and Embodiment 2 of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention, where the base station is a first network a base station, as shown in FIG.
  • the base station includes: an obtaining unit 81 and a transmitting unit 82, where: an acquiring unit 81 is configured to acquire a transmission slot position in a guard slot GP for transmitting a correction signal, where the transmitting The time slot position is determined based on a time slot configuration of the second network or a signal transmitted by the second network, and the interference of the signal transmitted by the second network is less than a preset time interval of the interference threshold; The network included in the hybrid networking where the first network is located.
  • the preset interference threshold may be set by a user, or may be preset in a communication system.
  • the preset interference threshold may be 0.
  • the interference of the signal transmitted by the second network which is smaller than the preset interference threshold, may specifically refer to a time slot position where the correction signal transmitted by the first network is less interfered by the signal transmitted by the second network than the preset interference threshold.
  • the interference of the signal transmitted by the second network in this embodiment may be the interference generated by the signal transmitted by the second network or the power or energy generated by the signal transmitted by the second network to obtain the signal transmitted by the second network.
  • the preset interference threshold is 0, that is, the signal transmitted by the second network is not included in the location of the transmitting time slot, so that the correction signal sent at the position of the transmitting time slot has no interference.
  • the transmitting unit 82 is configured to transmit the correction signal at the transmitting time slot position.
  • the foregoing transmitting may be specifically transmitting the correction signal by using a ZC sequence.
  • FIG. 9 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the base station is a base station of the first network.
  • the base station includes: an obtaining unit 91 and a transmitting unit 92, where: the obtaining unit 91 Means for calculating a transmission slot position in a GP for transmitting a correction signal, the transmission slot position being calculated based on a slot configuration of the second network and/or a signal transmitted by the second network, and being subjected to the second The interference of the signal transmitted by the network is less than the slot position of the preset interference threshold;
  • the second network is a network included in the hybrid networking where the first network is located.
  • the obtaining unit 91 may calculate the location of the transmitting time slot dynamically, or may calculate the location of the transmitting time slot by static.
  • the dynamic calculation may refer to calculating the position of the transmission time slot in the GP at the time when the correction signal needs to be transmitted, so that the position of the transmission time slot may be changed according to the signal of the second network.
  • the static calculation may mean pre-calculating the above-mentioned transmission time slot position, i.e., the transmission time slot position may be fixed.
  • the obtaining unit 91 may be specifically configured to calculate, according to the slot configuration of the first network and the slot configuration of the second network, when transmitting in the GP for transmitting the correction signal,
  • the semaphore of the second network included in the GP is smaller than the location of the transmission slot of the preset semaphore.
  • the signal amount of the second network included in the GP is smaller than the transmission slot position of the preset signal amount.
  • the slot position in the GP that is not the same as the slot position for transmitting the signal in the second network is calculated as the above-mentioned transmission slot position. That is, the obtaining unit 91 is specifically configured to calculate, according to the slot configuration of the first network and the slot configuration of the second network, that the GP for transmitting the correction signal is not used for transmitting the signal in the second network.
  • the slot position is the same as the slot position.
  • the time slot configuration of the first network and the time slot configuration of the second network are obtained in advance, and the time slot configuration of the first network may specifically include the time slot configuration of the GP.
  • the slot position used for transmitting the signal in the foregoing second network may specifically include: a downlink time slot for transmitting a downlink signal, an uplink time slot for transmitting an uplink signal, a DwPTS or an UpPTS, and the like.
  • the obtaining unit 91 may be specifically configured to calculate, according to the signal transmitted by the second network, that the semaphore of the second network included in the GP for transmitting the correction signal is less than a preset semaphore Transmit slot position.
  • the signal transmission amount of the second network included in the GP at this time may be calculated to be smaller than the transmission time slot position of the preset signal amount.
  • the semaphore of the second network included in the GP is smaller than the preset semaphore by the calculation of the power of each time domain sample of the GP. Because when a time domain sample in the GP includes a signal of the second network, the time domain sample generates power, and the power is proportional to the signal amount of the second network.
  • the semaphore of the second network included in the GP is smaller than the preset semaphore by calculating the energy of each GP correction symbol. Time slot location.
  • the correction symbol Because when a time domain sample in the GP includes a signal of the second network, the correction symbol generates energy, and the energy is proportional to the signal amount of the second network.
  • the above correction symbol may specifically be a length of time during which a single correction signal continues, that is, the correction symbol can understand a slot position whose length is the same as the length of the correction signal. For example: GP is 100us, and a correction signal is 10us in length, then the GP includes 10 correction symbols.
  • the obtaining unit 91 is specifically configured to calculate, according to the signal transmitted by the second network, a power generated by the signal transmitted by the second network on each time domain sample of the GP used to transmit the correction signal; And selecting, from the GP, a preset length, and including a slot position where the number of consecutive interference time domain samples is less than a preset threshold, where the interference time domain sample refers to power Time domain samples that are less than the preset interference power threshold.
  • the time domain sample may be preset, for example, 30 or 50 time domain samples are set in the GP, and the power of each time domain sample is calculated. Since in the actual application, the signal of the second network leaks into the GP of the first network, it usually interferes with a time slot, so that the time slot can include one or more time domain samples, so that the power calculation can be performed. Get this time slot. On the contrary, it is possible to obtain a slot position in which the preset length is selected and the number of consecutive interference time domain samples is smaller than the preset threshold as the transmission slot position.
  • the preset length may specifically be equal to or greater than the length of the correction signal.
  • the obtaining unit 91 may select a preset length from the GP and include a slot position in which the number of consecutive interference time domain samples is less than a preset threshold.
  • the obtaining unit 91 determines the time domain sample included in the GP and whose power is less than the interference power threshold as the absence of the interference time domain sample, and marks the time domain with the " ⁇ mark; the power included in the GP and the power is greater than or equal to the interference power threshold.
  • the sample point is determined to be a time domain sample with interference, and the mark is marked with "0"; the acquisition unit 91 selects a preset length from the GP and includes the number of consecutive " ⁇ time domain samples less than the preset threshold
  • the slot position is taken as the transmission slot position.
  • the power of each time domain sample may also be specifically processed, for example: alpha (alpha) filtering.
  • the obtaining unit 91 is specifically configured to calculate, according to the signal transmitted by the second network, the energy generated by the signal transmitted by the second network on each correction symbol of the GP used to transmit the correction signal;
  • the length of the correction symbol is equal to the length of the correction signal; and from the GP package Among the correction symbols included, the correction symbol with the smallest energy is selected, and the correction symbol is used as the transmission slot position.
  • the above-mentioned correction symbol may be a slot position whose length is the same as the length of the correction signal, and the above-mentioned correction symbol as the transmission slot position may specifically be the slot position corresponding to the correction symbol as the transmission slot. position.
  • the above correction symbols may be preset. Since in the actual application, the signal of the second network leaks into the GP of the first network, the at least one correction symbol is usually interfered, so that the at least one correction symbol generates energy, so that the at least one correction can be obtained by calculating the energy. symbol. Instead, the correction symbol with the lowest energy is selected and the correction symbol is used as the transmission slot position.
  • the foregoing base station selects a correction symbol with the smallest energy from the correction symbols included in the GP, and the correction symbol is used as the location of the transmission slot, which may specifically include:
  • the obtaining unit 91 selects the correction symbol with the smallest energy from the correction symbols included in the GP, and calculates the interference power of each subcarrier in the correction symbol, and selects at least the subcarrier in the correction symbol that the interference power is less than a specific threshold.
  • One subcarrier is used as a subcarrier in the transmission slot position for transmitting the correction signal.
  • At least one subcarrier in which the interference power is less than a specific threshold in the selected energy small correction symbol can be implemented as a subcarrier for transmitting the correction signal in the transmission slot position.
  • the interference of the correction signal can be further reduced.
  • this embodiment can also transmit the above correction signal on all subcarriers of the above energy small correction symbol.
  • the receiving end may further perform noise reduction processing on the channel information (e.g., channel estimation value, phase, etc.) according to the at least one subcarrier of the transmission correction signal.
  • the calculating the energy of the correction symbol may be specifically calculated as follows:
  • the obtaining unit 91 performs FFT transformation on the correction symbols in the GP, wherein the FFT size (size) can use the FFT size in the uplink service or the downlink service. That is, the time domain signal for correcting the symbol is converted to the frequency domain signal by the above FFT.
  • the acquisition unit 91 calculates the energy of the corrected symbol after the FFT conversion.
  • the power of the time domain samples can be calculated, and the above-mentioned transmission time slot position can be selected according to the power of each time domain sample.
  • the transmitting unit 92 is configured to transmit the correction signal at the transmitting time slot position.
  • the obtaining unit 91 may be further configured to receive indication information sent by the network side device, where the indication information indicates a transmission time slot position in the protection time slot GP for transmitting the correction signal, and the transmission time slot position And determining, by the network side device, a time slot configuration of the first network and a time slot configuration of the second network, and the interference of the signal transmitted by the second network is less than a preset time interval of the interference threshold.
  • the network side device may be an OAM unit.
  • OAM unit For the OAM unit to calculate the location of the foregoing transmission slot, refer to the embodiment shown in FIG. 3-5.
  • the specific time that the OAM unit sends to the base station may be the location of the transmission slot of the multiple scenarios (for example, the table in the second embodiment), and the base station selects the current correction signal according to the current slot configuration scenario. Transmit slot position.
  • the location of the transmitting time slot is calculated by the network side device, and the base station receives the indication information, thereby reducing interference of the correction signal in the hybrid networking.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the base station is a base station of a first network. As shown in FIG.
  • the base station includes: a memory 101 and a transmitter 102, and a memory 101 and The processor 103 is connected to the processor 103, wherein the memory 101 is configured to store a set of program codes, and the code used by the processor 103 to call the memory 101 performs the following operations: acquiring the transmission in the guard time slot GP for transmitting the correction signal a slot position, where the slot position is determined based on a slot configuration of the second network and/or a signal transmitted by the second network, and the interference of the signal transmitted by the second network is less than a preset interference threshold.
  • the second network is a network included in the hybrid networking where the first network is located;
  • the correction signal is transmitted by the transmitter 102 at the transmission slot position.
  • the preset interference threshold may be set by a user, or may be preset in a communication system.
  • the preset interference threshold may be 0.
  • the time slot position that the interference of the signal transmitted by the second network is less than the preset interference threshold may specifically refer to the time slot position where the correction signal transmitted by the first network is interfered by the signal transmitted by the second network by less than the preset interference threshold.
  • the interference of the signal transmitted by the second network in this embodiment may be the amount of signals transmitted through the second network or the second network The power or energy generated by the transmitted signal is used to obtain interference from the signal transmitted by the second network.
  • the interference indicating the correction signal transmitted by the first network at the transmission slot position is smaller.
  • the preset interference threshold is 0, that is, the signal transmitted by the second network is not included in the location of the transmission slot, so that the correction signal transmitted at the location of the transmission slot has no interference.
  • processor 103 can also be configured to perform the following operations:
  • the transmission slot position being calculated based on a slot configuration of the second network and/or a signal transmitted by the second network, and transmitted by the second network
  • the interference of the signal is smaller than the slot position of the preset interference threshold
  • the second network is a network included in the hybrid network where the first network is located
  • the correction signal is transmitted by the transmitter 102 at the transmission slot position.
  • the operation performed by the processor 103 to calculate the location of the transmission time slot in the GP for transmitting the correction signal may specifically include:
  • the signal amount of the second network included in the GP is less than a pre- Set the location of the transmit time slot of the semaphore.
  • the smaller the signal quantity of the second network included in the location of the transmission slot the smaller the interference of the transmission in the position of the transmission slot by the signal transmitted by the second network.
  • the signal amount of the second network included in the GP is smaller than the transmission slot position of the preset signal amount.
  • the slot position in the GP that is not the same as the slot position for transmitting the signal in the second network is calculated as the above-mentioned transmission slot position.
  • the time slot configuration performed by the processor 103 and the time slot configuration of the second network performed by the processor 103, when the intra-GP transmission for transmitting the correction signal is performed, where the GP includes The operation of the second network may be performed by using a slot configuration of the first network and a slot configuration of the second network to calculate a transmit correction signal.
  • the location of the transmission slot in the GP that is not the same as the location of the slot used to transmit the signal in the second network.
  • the time slot configuration of the first network and the time slot configuration of the second network are obtained in advance, and the time slot configuration of the first network may specifically include the time slot configuration of the GP.
  • the operation performed by the processor 103 to calculate the location of the transmit time slot in the GP for transmitting the correction signal may specifically include:
  • the base station of the first network calculates, based on the signal transmitted by the second network, a transmission time slot position of the second network included in the GP for transmitting the correction signal that is smaller than a preset signal amount.
  • the base station of the first network that is executed by the processor 103 calculates, according to the signal that is sent by the second network, that the semaphore of the second network included in the GP for transmitting the correction signal is smaller than the preset semaphore.
  • the operation of the slot position may specifically include:
  • the time domain sample may be preset, for example, 30 or 50 time domain samples are set in the GP, and the power of each time domain sample is calculated. Since in the actual application, the signal of the second network leaks into the GP of the first network, it usually interferes with a time slot, so that the time slot can include one or more time domain samples, so that the power calculation can be performed. Get this time slot. On the contrary, it is possible to obtain a slot position in which the preset length is selected and the number of consecutive interference time domain samples is smaller than the preset threshold as the transmission slot position.
  • the preset length may specifically be equal to or greater than the length of the correction signal.
  • the processor 103 may select a preset length from the GP and include a slot position in which the number of consecutive interference time domain samples is less than a preset threshold.
  • the processor 103 determines the time domain sample included in the GP and whose power is less than the interference power threshold as no interference time domain sample, and marks the time domain with the " ⁇ flag; the power included in the GP and the power is greater than or equal to the interference power threshold.
  • the sample point is determined as a time domain sample with interference, and the mark is marked with "0"; the base station selects a time slot from the GP that has a preset length and includes consecutive ⁇ time domain samples less than the preset threshold
  • the position is the position of the transmission slot.
  • the power of each time domain sample may also be specifically processed, for example: alpha (alpha) filtering.
  • the base station of the first network executed by the processor 103 is based on the message sent by the second network.
  • the operation of calculating the semaphore of the second network included in the GP for transmitting the correction signal is smaller than the location of the transmission slot of the preset semaphore may specifically include:
  • the processor 103 is configured to select a correction symbol with the smallest energy from the correction symbols included in the GP, and the correction symbol is used as the location of the transmission slot.
  • the processor 103 selects a correction symbol with the smallest energy from the correction symbols included in the GP, and calculates an interference power of each subcarrier in the correction symbol, and selects at least a subcarrier in the correction symbol that the interference power is less than a specific threshold.
  • One subcarrier is used as a subcarrier in the transmission slot position for transmitting the correction signal.
  • the transmitter 102 may specifically include:
  • RRU remote radio unit
  • a transmit slot position in a guard slot GP for transmitting a correction signal is obtained, where the slot position is determined based on a slot configuration of the second network and/or a signal transmitted by the second network. And the interference of the signal transmitted by the second network is less than the slot position of the preset interference threshold; the second network is a network included in the hybrid network where the first network is located; and the transmitting station is located at the transmitting time slot The correction signal. In this way, the time slot position at which the correction signal is transmitted is less interfered by the signal transmitted by the second network, so that the interference of the correction signal in the hybrid network can be reduced.
  • the storage medium may be a magnetic disk, an optical disk, or a read-only memory (Read-Only Memory,
  • ROM Read Only Memory
  • RAM Random Access Memory
  • system and “network” are often used interchangeably herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明实施例公开了一种校正信号发射方法，包括：第一网络的基站获取用于发射校正信号的保护时隙GP中的发射时隙位置，所述发射时隙位置是基于第二网络的时隙配置和/或第二网络发射的信号而确定的，且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置；所述第二网络为所述第一网络所在的混合组网包括的网络；所述基站在所述发射时隙位置发射所述校正信号。相应地，本发明实施例还公开一种基站。本发明实施例可以降低混合组网中校正信号的干扰。

Description

一种校正信号发射方法和基站
本申请要求于 2013 年 9 月 25 日提交中国专利局、 申请号为 201310441861.9, 发明名称为 "一种校正信号发射方法和基站 " 的中国专利 申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信领域， 尤其涉及一种校正信号发射方法和基站。 背景技术
随着用户对业务需求和网络技术的发展， 以及用户的业务需求， 混合组合 网， 即至少两个网络同时覆盖且同时为用户提供服务。 例如： 目前时分 -同步 码分多址 ( Time Division- Synchronous Code Division Multiple Access， TD-SCDMA ) 网络和时分-长期演进（Time Division- Long Term Evolution, TD-LTE )网络已实现混合覆盖， 即 TD-SCDMA和 TD-LTE混合组网场景， 由 于该场景容易满足用户的需求，从而该场景得到广泛应用。 由于上述混合组网 中的网络都是釆用时分双工（ Time Division Duplex, TDD )系统进行数据通信， 例如： TD-SCDMA网络和 TD-LTE网络。 在 TDD系统中上行频率和下行频率 都是相同的， 在通信过程中就可以通过上行的信道信息估算下行的信道信息， 然而该估算的前提是需要完成拉远射频单元（ Remote Radio Unit, RRU )的通 道校正。 而 TD-SCDMA网络和 TD-LTE网络通过在保护时隙 （ Guard Period, GP )发送校正信号来完成 RRU的通道校正。
在实际应用中由于混合组网中的网络使用的频点相近或者相同， 例如： TD-SCDMA网络和 TD-LTE网络，这样在 TD-SCDMA和 TD-LTE混合组网场 景下， TD-SCDMA网络的信号可能会泄露 TD-LTE网络的 GP内， 从而对该 GP内的校正信号造成干扰； TD-LTE网络的信号也可能会泄露 TD-SCDMA网 络的 GP内， 同样会对该 GP内的校正信号造成干扰。 可见， 目前混合组网中 校正信号存在干扰。 发明内容 本发明实施例提供了一种校正信号发射方法和基站，可以降低混合组网中 校正信号的干扰。
第一方面， 本发明实施例提供一种校正信号发射方法， 包括：
第一网络的基站获取用于发射校正信号的保护时隙 GP 中的发射时隙位 置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信号 而确定的， 且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述第二网络为所述第一网络所在的混合组网包括的网络；
所述基站在所述发射时隙位置发射所述校正信号。
在第一方面的第一种可能的实现方式中，所述第一网络的基站获取用于发 射校正信号的 GP中的发射时隙位置， 包括：
所述第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时 隙配置， 计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所述第 二网络的信号量小于预设信号量的发射时隙位置； 或者
所述第一网络的基站基于所述第二网络发射的信号，计算用于发射校正信 号的 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现 方式中，所述第一网络的基站基于所述第一网络的时隙配置和所述第二网络的 时隙配置， 计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所述 第二网络的信号量小于预设信号量的发射时隙位置， 包括：
所述第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时 隙配置， 计算用于发射校正信号的 GP内不与所述第二网络中用于发射信号的 时隙位置相同的发射时隙位置。
结合第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现 方式中， 所述第一网络的基站基于所述第二网络发射的信号，计算用于发射校 正信号的 GP 内包括的所述第二网络的信号量小于预设信号量的发射时隙位 置， 包括：
所述第一网络的基站基于所述第二网络发射的信号，计算所述第二网络发 射的信号在用于发射校正信号的 GP的每个时域样点上生产的功率；
所述基站从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数 小于预设阔值的时隙位置作为发射时隙位置，其中， 所述干扰时域样点是指功 率小于预设干扰功率门限的时域样点。
结合第一方面的第一种可能的实现方式，在第一方面的第四种可能的实现 方式中， 所述第一网络的基站基于所述第二网络发射的信号，计算用于发射校 正信号的 GP 内包括的所述第二网络的信号量小于预设信号量的发射时隙位 置， 包括：
所述第一网络的基站基于所述第二网络发射的信号，计算所述第二网络发 射的信号在用于发射校正信号的 GP的每个时域样点上生产的功率；
所述基站从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数 小于预设阔值的时隙位置作为发射时隙位置，其中， 所述干扰时域样点是指功 率小于预设干扰功率门限的时域样点。
结合第一方面，在第一方面的第五种可能的实现方式中， 所述第一网络的 基站获取用于发射校正信号的保护时隙 GP中的发射时隙位置， 包括：
所述第一网络的基站接收网络侧设备发送的指示信息，所述指示信息指示 用于发射校正信号的保护时隙 GP中的发射时隙位置， 发射时隙位置是所述网 络侧设备基于所述第一网络的时隙配置和第二网络的时隙配置而确定的，且受 到第二网络发射的信号的干扰小于预设干扰门限的时隙位置。
第二方面， 本发明实施例提供一种基站， 所述基站为第一网络的基站， 所 述基站包括： 获取单元和发射单元， 其中：
所述获取单元， 用于获取用于发射校正信号的保护时隙 GP中的发射时隙 位置，所述发射时隙位置是基于第二网络的时隙配置或者第二网络发射的信号 而确定的， 且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述第二网络为所述第一网络所在的混合组网包括的网络；
所述发射单元， 用于在所述发射时隙位置发射所述校正信号。
在第二方面的第一种可能的实现方式中，所述获取单元具体用于基于所述 第一网络的时隙配置和所述第二网络的时隙配置，计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所述第二网络的信号量小于预设信号量的发 射时隙位置； 或者
所述获取单元具体用于基于所述第二网络发射的信号，计算用于发射校正 信号的 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。 结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现 方式中，所述获取单元具体用于基于所述第一网络的时隙配置和所述第二网络 的时隙配置， 计算用于发射校正信号的 GP内不与所述第二网络中用于发射信 号的时隙位置相同的发射时隙位置。
结合第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现 方式中， 所述获取单元具体用于基于所述第二网络发射的信号，计算所述第二 网络发射的信号在用于发射校正信号的 GP的每个时域样点上生产的功率； 并 从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数小于预设阔值 的时隙位置作为发射时隙位置， 其中， 所述干扰时域样点是指功率小于预设干 扰功率门限的时域样点。
结合第二方面的第一种可能的实现方式，在第二方面的第四种可能的实现 方式中， 所述获取单元具体用于基于所述第二网络发射的信号，计算所述第二 网络发射的信号在用于发射校正信号的 GP的每个校正符号上生产的能量； 其 中， 所述校正符号的长度等于所述校正信号的长度； 并从所述 GP包括的校正 符号中选择出能量最小的校正符号， 并将该校正符号作为发射时隙位置。
结合第二方面，在第二方面的第五种可能的实现方式中， 所述获取单元具 体用于接收网络侧设备发送的指示信息，所述指示信息指示用于发射校正信号 的保护时隙 GP中的发射时隙位置，发射时隙位置是所述网络侧设备基于所述 第一网络的时隙配置和第二网络的时隙配置而确定的，且受到第二网络发射的 信号的干扰小于预设干扰门限的时隙位置。
上述技术方案中， 第一网络的基站获取用于发射校正信号的保护时隙 GP 中的发射时隙位置， 所述发射时隙位置是基于第二网络的时隙配置和 /或者第 二网络发射的信号而确定的，且受到第二网络发射的信号的干扰小于预设干扰 门限的时隙位置； 所述第二网络为所述第一网络所在的混合组网包括的网络； 所述基站在所述发射时隙位置发射所述校正信号。这样可以实现发送校正信号 的时隙位置受到第二网络发射的信号的干扰比较少，从而可以降低混合组网中 校正信号的干扰。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付 出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1是本发明实施例提供的一种校正信号发射方法的流程示意图； 图 2是本发明实施例提供的另一种校正信号发射方法的流程示意图； 图 3-图 5是本发明实施例提供的多种可选的载波配置示意图；
图 6是本发明实施例提供的另一种校正信号发射方法的流程示意图； 图 7 是本发明实施例提供的一种场景示意图；
图 8是本发明实施例提供的一种基站结构示意图；
图 9是本发明实施例提供的另一种基站结构示意图；
图 10是本发明实施例提供的另一种基站结构示意图。 具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是 全部的实施例。基于本发明中的实施例， 本领域普通技术人员在没有作出创造 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。
本发明实施例中， 第一网络所在的混合组网可以是通信领域任何混合组 网， 例如 TD-SCDMA和 TD-LTE的混合组网。 其中， 上述第一网络可以是这 些混合组网中任一网络，第二网络是这些混合组网中除第一网络之外的任一网 络， 例如： 第一网络为 TD-SCDMA网络， 第二网络就可以为 TD-LTE网络； 又如第一网络为 TD-LTE网络， 第二网络就可以为 TD-SCDMA网络。 即本发 明实施例中的基站可以是 TD-SCDMA网络的基站， 也可以是 TD-LTE网络的 基站。 本发明实施例重点以 TD-SCDMA和 TD-LTE的混合组网为例进行重点 介绍， 但本发明实施例并不限定。
本发明实施例提供的技术方案可以应用于各种无线通信网络， 例如： 全球 移动通信 ( global system for mobile communication, 简称为 GSM ) 系统、 码分 多址 （code division multiple access , 简称为 CDMA ) 系统、 宽带码分多址 ( wideband code division multiple access， 简称为 WCDMA )系统、通用移动通 信 ( universal mobile telecommunication system, 简称为 UMTS ) 系统、 通用分 组无线业务 ( general packet radio service, 简称为 GPRS )系统、长期演进（ long term evolution , 简称为 LTE ) 系统、 先进的长期演进 ( long term evolution advanced, 简称为 LTE-A )系统、全球互联微波接入 ( worldwide interoperability for microwave access, 简称为 WiMAX ) 系统等。 术语 "网络" 和 "系统" 可 以相互替换。
在本发明实施例中， 基站 （base station, 简称为 BS ) 可以是与用户设备 ( user equipment, 简称为 UE )或其它通信站点如中继站点， 进行通信的设备， 基站可以提供特定物理区域的通信覆盖。例如，基站具体可以是 GSM或 CDMA 中的基站收发台 （ Base Transceiver Station, 简称为 BTS )或基站控制器（ Base Station Controller, 简称为 BSC ); 也可以是 UMTS中的节点 B ( Node B， 简称 为 NB )或者 UMTS中的无线网络控制器 （ Radio Network Controller, 简称为 RNC ); 还可以是 LTE中的演进型基站（ Evolutional Node B， 简称为 ENB或 eNodeB ); 或者可以是 TD-SCDMA网络的基站； 或者， 也可以是无线通信网 络中的提供接入服务的其他接入网设备， 本发明并不限定。
在本发明实施例中， UE可以分布于整个无线网络中， 每个 UE可以是静 态的或移动的。 UE可以称为终端 （terminal ), 移动台 （ mobile station )， 用户 单元 ( subscriber unit )，站台（ station )等。 UE可以为蜂窝电话（ cellular phone )， 个人数字助理 （personal digital assistant , 简称为 PDA ) , 无线调制解调器 ( modem ) , 无线通信设备， 手持设备 （ handheld )， 膝上型电脑 （laptop computer ), 无绳电话 ( cordless phone )， 无线本地环路 ( wireless local loop, 简称为 WLL ) 台等。
另外， 本发明实施例对校正信号也不作限定， 例如， 校正信号可以是低峰 值平均功率比 （ Peak to Average Power Ratio PAPR )信号， 或者简称低峰均比 信号。
图 1是本发明实施例提供的一种校正信号发射方法的流程示意图， 如图 1 所示， 包括： 101、 第一网络的基站获取用于发射校正信号的 GP中的发射时隙位置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信号而确 定的，且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述 第二网络为所述第一网络所在的混合组网包括的网络。
可选的， 上述预设干扰门限可以是用户设置的，也可以是通信系统中预设 定义的， 例如， 上述预设干扰门限可以是 0。 受到第二网络发射的信号的干扰 小于预设干扰门限的时隙位置具体可以是指第一网络发射的校正信号受到第 二网络发射的信号的干扰小于预设干扰门限的时隙位置。且本实施例中受到第 二网络发射的信号的干扰可以是通过第二网络发射的信号量或者第二网络发 射的信号产生的功率或者能量来得到第二网络发射的信号的干扰。当上述发射 时隙位置包括第二网络的信号量越小时，表示第一网络在该发射时隙位置发射 的校正信号的干扰越小。 例如， 上述预设干扰门限为 0时， 即上述发射时隙位 置中不包括第二网络发射的信号，这样在该发射时隙位置发送的校正信号就不 存在干扰。
可选的， 第一网络的基站获取用于发射校正信号的 GP中的发射时隙位置 具体可以是该基站通过计算获取用于发射校正信号的 GP中的发射时隙位置； 还可以是该基站接收网络侧设备发送的用于指示用于发射校正信号的 GP中的 发射时隙位置指示信息， 从而根据该指示信息获取 GP中的发射时隙位置； 还 可以是该基站直接获取用于发射校正信号的 GP中的发射时隙位置。
可选的， 上述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发 射的信号而确定的具体可以是理解为，上述发射时隙位置是基于第二网络的时 隙配置确定的， 或者上述发射时隙位置是基于第二网络发射的信号确定的， 或 者上述发射时隙位置是基于第二网络的时隙配置和第二网络发射的信号而确 定的。
102、 基站在所述发射时隙位置发射所述校正信号。
可选的， 上述发射具体可以是釆用 ZC序列发射该校正信号。
上述技术方案中， 第一网络的基站获取用于发射校正信号的保护时隙 GP 中的发射时隙位置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二 网络发射的信号而确定的，且受到第二网络发射的信号的干扰小于预设干扰门 限的时隙位置； 所述第二网络为所述第一网络所在的混合组网包括的网络； 所 述基站在所述发射时隙位置发射所述校正信号。这样可以实现发送校正信号的 时隙位置受到第二网络发射的信号的干扰比较少，从而可以降低混合组网中校 正信号的干扰。 图 2是本发明实施例提供的另一种校正信号发射方法的流程示意图，如图 2所示， 包括：
201、 第一网络的基站计算用于发射校正信号的 GP中的发射时隙位置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信号而计 算的，且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述 第二网络为所述第一网络所在的混合组网包括的网络。
可选的， 步骤 201可以是动态地计算上述发射时隙位置，也可以是静态是 计算上述发射时隙位置。其中，动态计算可以是指在需要发射上述校正信号时， 计算此时 GP内的发射时隙位置， 这样可以实现随第二网络的信号而改变上述 发射时隙位置。静态计算可以是指预先计算上述发射时隙位置， 即该发射时隙 位置可以是固定。
可选的， 对于静态计算， 步骤 201具体可以包括：
第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时隙配 置， 计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所述第二网 络的信号量小于预设信号量的发射时隙位置。
其中，发射时隙位置内包括的第二网络的信号量越小， 那么发射时隙位置 内发射受到第二网络发射的信号干扰也就越小。具体可以是预先估算出在用于 发射校正信号的 GP发射时， 所述 GP内包括的所述第二网络的信号量小于预 设信号量的发射时隙位置。 例如计算该 GP内不与所述第二网络中用于发射信 号的时隙位置相同的时隙位置作为上述发射时隙位置。即步骤 201具体可以包 括：
第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时隙配 置， 计算用于发射校正信号的 GP内不与所述第二网络中用于发射信号的时隙 位置相同的发射时隙位置。 即预先获取第一网络的时隙配置和第二网络的时隙配置， 其中， 第一网络 的时隙配置具体可以包括上述 GP的时隙配置。
可选的， 上述第二网络中用于发射信号的时隙位置具体可以包括： 用于发 射下行信号的下行时隙、 用于发射上行信号的上行时隙、 下行导频时隙 ( Downlink Pilot Time Slot, DwPTS )、 GP或者上行导频时隙（ Uplink Pilot Time Slot ， UpPTS )等。
下面以具体场景介绍上述发射时隙位置的计算：
例如图 3所示的场景， TDD-LTE的上行时隙 （或者上行子帧）和下行时 隙（或者下行子帧）都为 1毫秒（ ms )， DwPTS, GP和 UpPTS之比为 10:2:2， 即 DwPTS:GP: UpPTS等于 10:2:2， DwPTS, GP和 UpPTS分别为 21952Ts、 4384Ts和 4384Ts，其中， Ts表示釆样时间点， ITs等于 1/(30.72* 10Λ6)秒。 TDD SCDMA的上行时隙和下行时隙都为 675微秒（us )， DwPTS为 75us， GP为 75us, UpPTS为 125us。
通过上述就可以得到对于 TD-SCDMA 的 GP 区起始位置为 1.025ms+0.675ms+0.075ms=l.775ms。 对于 TDD-LTE 的 GP 区起始位置为 lms+0.71458ms= 1.71458ms 0 即 TDD-LTE的 GP区起始位置超前 TD-SCDMA 的 GP区起始位置 60.4us， 即 TD-SCDMA的 DwPTS与 TDD-LTE的 GP存在 相同 60.4us的时隙位置。 这样 TD-SCDMA的 DwPTS就有 60.4us的下行信号 可能会干扰至 TDD-LTE的 GP， 即 TDD-LTE的 GP中 0-60.4us中发射的校正 信号可能会存在干扰。 对于该场景就可以选择上述发射时隙位置为 GP 内 60.4us+Xus的时隙位置， X表示偏移值， X的取值可以参考第二网络发射的下 行信号到第一网络的传播时延，且该下行信号可以包括网络正常公共信号和业 务信号， 同时也包括发射的校正信号。
例如图 4所示的场景， TDD-LTE的上行时隙 （或者上行子帧）和下行时 隙（或者下行子帧）都为 1毫秒（ms )， DwPTS, GP和 UpPTS之比为 3:9:2， 即 DwPTS:GP: UpPTS等于 3:9:2， DwPTS, GP和 UpPTS分别为 6592Ts、 19744Ts和 4384Ts。 TDD SCDMA的上行时隙和下行时隙都为 675微秒（ us )， DwPTS为 75us， GP为 75us， UpPTS为 125us。
通过上述就可以得到对于 TD-SCDMA 的 GP 区起始位置为 0.7ms+0.675ms+0.075ms=1.45ms。 对于 TDD-LTE 的 GP 区起始位置为 lms+0.21458ms=1.21458ms。 即 TDD-LTE的 GP区起始位置超前 TD-SCDMA 的 GP区起始位置 234.4us，即 TD-SCDMA的 DwPTS与 TDD-LTE的 GP存在 相同 75us的时隙位置， 且 TD-SCDMA的下行时隙与 TDD-LTE的 GP存在相 同 159.4us的时隙位置。这样 TD-SCDMA就有 234.4us的下行信号可能会干扰 至 TDD-LTE的 GP，即 TDD-LTE的 GP中 0-234.4us中发射的校正信号可能会 存在干扰。 对于该场景就可以选择上述发射时隙位置为 GP内 234.4us+Xus的 时隙位置。
例如图 5所示的场景， TDD-LTE的上行时隙 （或者上行子帧）和下行时 隙（或者下行子帧）都为 1毫秒（ms )， DwPTS, GP和 UpPTS之比为 3:9:2， 即 DwPTS:GP: UpPTS等于 3:9:2， DwPTS, GP和 UpPTS分别为 6592Ts、 19744Ts和 4384Ts。 TDD SCDMA的上行时隙和下行时隙都为 675 us, DwPTS 为 75us， GP为 75us， UpPTS为 125us。
通过上述就可以得到对于 TD-SCDMA 的 GP 区起始位置为 0.675ms+0.675ms+0.075ms= 1.425ms。 对于 TDD-LTE 的 GP 区起始位置为 lms+0.21458ms=1.21458ms。 即 TDD-LTE的 GP区起始位置超前 TD-SCDMA 的 GP区起始位置 210.4us，即 TD-SCDMA的 DwPTS与 TDD-LTE的 GP存在 相同 75us的时隙位置， 且 TD-SCDMA的下行时隙与 TDD-LTE的 GP存在相 同 135.4us的时隙位置。这样 TD-SCDMA就有 210.4us的下行信号可能会干扰 至 TDD-LTE的 GP，即 TDD-LTE的 GP中 0-210.4us中发射的校正信号可能会 存在干扰。 对于该场景就可以选择上述发射时隙位置为 GP内 210.4us+Xus的 时隙位置。
通过上述分析还可以得出在上述三种场景中 TDD-LTE 下行信号对 TD-SCDMA的 GP内的校正信号是不存在影响。且 TDD-LTE发通道校正的时 候， 由于其他系统（如 TD-SCDMA )泄露的干扰信号， 到达 LTE的接收通道 时， LTE的接收通道是关断的， 所以干扰信号进不来， 因而没有影响， 但也可 能会干扰到 TD-SCDMA GP里校正信号， 从这个意义上说， 两个网络可以根 据时隙配置和校正信号发射位置， 联合考虑两个网络的最优校正信号发射位 置。 对于 TDD-LTE的上述发射时隙位置 （包括发通道校正信号起始位置和收 通道校正信号起始位置）可以如下表示所示：
Figure imgf000012_0001
可选的， 上述校正信号具体可以包括发通道校正信号和收通道校正信号， 即上述发射时隙位置具体可以是指发通道校正信号起始位置或者收通道校正 信号起始位置。 对于 TDD-LTE网络的发通道校正信号起始位置可以是在 GP 内任意位置， 这样本实施例中对于 TDD-LTE网络上述发射时隙位置具体可以 是指收通道校正信号的发射位置， 即对于 TDD-LTE网络上述校正信号具体可 以是指收通道校正信号。
另外， 从上面实例可以得到， TDD-LTE网络的 GP和 TD-SCDMA网络的 GP是存在时隙相同的时隙位置，这样 TDD-LTE网络在 GP内发射的校正信号 同样可能对 TD-SCDMA网络在 GP内发射的校正信号， 从而本发明实施例还 可以分别计算混合组网下包括的多个网络的发送时隙位置，以降低校正信号之 间干扰。
可选的， 对于动态计算， 步骤 201具体可以包括：
第一网络的基站基于所述第二网络发射的信号，计算用于发射校正信号的 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。
即可以在需要发射校正信号时， 计算此时 GP内包括的所述第二网络的信 号量小于预设信号量的发射时隙位置。 其中， 具体可以通过计算 GP各时域样 点的功率得到 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙 位置。 因为当 GP内某个时域样点包括第二网络的信号时， 那么该时域样点就 会产生功率， 且功率与第二网络的信号量成正比。 具体可以通过计算 GP各校 正符号的能量得到 GP内包括的所述第二网络的信号量小于预设信号量的发射 时隙位置。 因为当 GP内某个时域样点包括第二网络的信号时， 那么该校正符 号就会产生能量， 且能量与第二网络的信号量成正比。 其中， 上述校正符号具 体可以是单个校正信号持续的时间长度，即校正符号可以理解长度与校正信号 长度相同的时隙位置。 例如： GP为 100us， 而一个校正信号为长度 10us， 那 么该 GP就可以包括最大 10校正符号。
可选的， 步骤 201可以包括：
所述第一网络的基站基于所述第二网络发射的信号，计算所述第二网络发 射的信号在用于发射校正信号的 GP的每个时域样点上生产的功率；
基站从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数小于 预设阔值的时隙位置作为发射时隙位置， 其中， 所述干扰时域样点是指功率小 于预设干扰功率门限的时域样点。
可选的， 其中， 上述时域样点可以是预先设置的， 例如在 GP 内设置 30 个或者 50个时域样点， 再计算每个时域样点的功率。 由于在实际应用中第二 网络的信号泄露至第一网络的 GP内通常会干扰到一段时隙， 这样这一段时隙 就可以包括一个或者多个时域样点，从而可以通过上述功率的计算得到这一段 时隙。相反就可以得到选择出预设长度且包括连续的干扰时域样点的个数小于 预设阔值的时隙位置作为发射时隙位置。其中， 上述预设长度具体可以是等于 或者大于校正信号的长度。
上述基站从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数 小于预设阔值的时隙位置作为发射时隙位置具体还可以包括：
基站将 GP包括的且功率小于干扰功率门限的时域样点确定为不存在干扰 时域样点， 并标记用 "Γ 标记； 将 GP 包括的且功率大于或者等于干扰功率 门限的时域样点确定为存在干扰的时域样点， 并标记用 "0" 标记；
基站从 GP中选择出预设长度且包括连续的 Γ 的时域样点的个数小于预 设阔值的时隙位置作为发射时隙位置。
可选的，在上述计算每个时域样点的功率之后，还可以对每个时域样点的 功率进行特定的处理， 例如： 阿尔法（alpha )滤波。
可选的， 上述计算时域样点的功率具体可以通过如下公式计算：
Figure imgf000013_0001
其中， p (n)表示时域样点功率， n表示时域样点编号， r ( )表示时域样点 接收信号， N表示 GP内总共的时域样点数。
通过上述描述就可以实现通过计算时域样点的功率，再根据各个时域样点 的功率选择出上述发射时隙位置。
可选的， 步骤 201可以包括：
第一网络的基站基于所述第二网络发射的信号，计算所述第二网络发射的 信号在用于发射校正信号的 GP的每个校正符号上生产的能量； 其中， 所述校 正符号的长度等于所述校正信号的长度；
基站从所述 GP包括的校正符号中选择出能量最小的校正符号， 并将该校 正符号作为发射时隙位置。
如 GP长度为 100us，校正符号长度 10us，那么就存在 10个可能的校正发 射位置， 可以釆取分段求取干扰功率的方法， 如
1 k*L
P (k) = - ∑ |r (n)|2, N = K - L,l < L < N
L n (k - 1 L+1
其中 k表示分段标号， 取值 0≤k < 10， L表示每段里面的时域样点个数， 1≤ L≤ N， N表示 GP总的样点个数。
可选的，由于上述校正符号具体可以是长度与校正信号长度相同的时隙位 置， 这样， 上述将该校正符号作为发射时隙位置具体可以是将该校正符号对应 的时隙位置作为发射时隙位置。上述校正符号可以是预先设置的。 由于在实际 应用中第二网络的信号泄露至第一网络的 GP内通常会干扰到至少一个校正符 号， 这样至少一个校正符号就会产生能量，从而可以通过上述能量的计算得到 这至少一个校正符号。相反就可以得到选择出能量最小的校正符号， 并将该校 正符号作为发射时隙位置。
可选的， 上述基站从所述 GP包括的校正符号中选择出能量最小的校正符 号， 并将该校正符号作为发射时隙位置， 具体可以包括：
基站从所述 GP包括的校正符号中选择出能量最小的校正符号， 并计算该 校正符号内每个子载波的干扰功率，选择出该校正符号包括的子载波中干扰功 率小于特定门限的至少一个子载波作为发射时隙位置中用于发射所述校正信 号的子载波。
这样就可以实现选择能量小校正符号中干扰功率小于特定门限的至少 2 个子载波作为发射时隙位置中用于发射所述校正信号的子载波。从而可以进一 步降低校正信号的干扰。 当然， 本实施例还可以在上述能量小校正符号的所有 子载波上发送上述校正信号。通过上述方式，接收端还可以根据发射校正信号 的上述至少 2个子载波对信道信息（例如： 信道估计值、 相位等）进行降噪处 理。
可选的， 上述计算校正符号的能量具体可以通过如下方式计算：
基站对 GP内的校正符号进行快速傅里叶变换（Fast Fourier Transform, FFT )变换，其中， FFT大小（size )可以釆用上行业务或者下行业务中 FFT size。 即通过上述 FFT将校正符号釆用的时域信号变换至频域信号。
基站计算 FFT转换后的校正符号的能量。
通过上述描述就可以实现通过计算每段校正符号的功率，再根据各个校正 符号的功率选择出上述发射时隙位置。
第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时隙配 置， 计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所述第二网 络的信号量小于第一预设信号量的多个发射时隙位置； 或者
第一网络的基站基于所述第二网络发射的信号，计算所述多个发射时隙位 置内包括的所述第二网络的信号量小于第二预设信号量的发射时隙位置。
其中， 上述第二预设信号量小于上述第一预设信号量， 这样就可以实现经 过多次不同的计算方式， 得到发射时隙位置。
202、 基站在所述发射时隙位置发射所述校正信号。
上述技术方案，在上面实施例的基础上实现了多种可选的实施方式，且都 可以实现降低混合组网中校正信号的干扰。 图 6是本发明实施例提供的另一种校正信号发射方法的流程示意图，如图 6所示， 包括：
601、 第一网络的基站接收网络侧设备发送的指示信息， 所述指示信息指 示用于发射校正信号的保护时隙 GP中的发射时隙位置， 发射时隙位置是所述 网络侧设备基于所述第一网络的时隙配置和第二网络的时隙配置而确定的，且 受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置。 可选的， 上述网络侧设备具体可以是操作、 管理和维护 （ Operation Administration and Maintenance, OAM )单元。 其中， OAM单元计算上述发 射时隙位置具体可以参考图 3-5所示的实施方式。 且 OAM单元向基站发送的 具体可以是多种场景的发射时隙位置 （例如： 第二个实施例中的表）， 基站再 根据当前的时隙配置场景选择出用于发送当前的校正信号的发射时隙位置。
602、 基站在所述发射时隙位置发射所述校正信号。
上述技术方案中， 可以实现由网络侧设备计算上述发射时隙位置，基站再 接收上述指示信息， 从而实现降低混合组网中校正信号的干扰。 下面以一个具体的应用场景进行举例说明：
如图 7所示， 包括 TD-SCDMA网络的第一基站 701、 TD-LTE网络的第 二基站 702和用户设备 703。 当第一基站 701和第二基站 702同时或者在一个 特别相近的时间向用户设备 703进行数据通信时。具体的通信数据载波的配置 可以参考图 3-图 5所示的配置。 下面以图 3所示的载波配置为例进行说明。 TD-SCDMA的载波比 TD-LTE的载波滞后 1.025ms，这样 TD-LTE的载波切换 为 GP 时， TD-SCDMA 的载波还是处于 DwPTS， 且 TD-LTE 的 GP 与 TD-SCDMA的 DwPTS存在 60.4us相同时隙位置。 即 TD-SCDMA的 DwPTS 在这 60.4us内还在发射下行信号， 而 TD-LTE的基站的接收通道在 GP内是打 开的， 如果在 GP的 0-60.4us 内发射校正信号时， 而 TD-SCDMA的 DwPTS 在这 60.4us内发射的下行信号就很有可能泄露至 TD-LTE的基站的接收通道， 从而对 GP内的校正信号生产干扰。 这样本发明实施例还可以通过上面介绍的 多种方式， 选择 GP 内的 60.4us-Xus 内为上述发射时隙位置， 即在 GP 内的 60.4us-Xus发射校正信号。 下面为本发明装置实施例，本发明装置实施例用于执行本发明方法实施例 一至二实现的方法， 为了便于说明， 仅示出了与本发明实施例相关的部分， 具 体技术细节未揭示的， 请参照本发明实施例一和实施例二。 图 8是本发明实施例提供的一种基站结构示意图，所述基站为第一网络的 基站， 如图 8所示， 所述基站包括： 获取单元 81和发射单元 82， 其中： 获取单元 81，用于获取用于发射校正信号的保护时隙 GP中的发射时隙位 置，所述发射时隙位置是基于第二网络的时隙配置或者第二网络发射的信号而 确定的，且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所 述第二网络为所述第一网络所在的混合组网包括的网络。
可选的， 上述预设干扰门限可以是用户设置的，也可以是通信系统中预设 定义的， 例如， 上述预设干扰门限可以是 0。 受到第二网络发射的信号的干扰 小于预设干扰门限的时隙位置具体可以是指第一网络发射的校正信号受到第 二网络发射的信号的干扰小于预设干扰门限的时隙位置。且本实施例中受到第 二网络发射的信号的干扰可以是通过第二网络发射的信号量或者第二网络发 射的信号产生的功率或者能量来得到第二网络发射的信号的干扰。当上述发射 时隙位置包括第二网络的信号量越小时，表示第一网络在该发射时隙位置发射 的校正信号的干扰越小。 例如， 上述预设干扰门限为 0时， 即上述发射时隙位 置中不包括第二网络发射的信号，这样在该发射时隙位置发送的校正信号就不 存在干扰
发射单元 82， 用于在所述发射时隙位置发射所述校正信号。
可选的， 上述发射具体可以是釆用 ZC序列发射该校正信号。
上述技术方案中， 获取用于发射校正信号的保护时隙 GP中的发射时隙位 置，所述发射时隙位置是基于第二网络的时隙配置或者第二网络发射的信号而 确定的，且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所 述第二网络为所述第一网络所在的混合组网包括的网络；在所述发射时隙位置 发射所述校正信号。这样可以实现发送校正信号的时隙位置受到第二网络发射 的信号的干扰比较少， 从而可以降低混合组网中校正信号的干扰。 图 9是本发明实施例提供的另一种基站结构示意图，所述基站为第一网络 的基站， 如图 9所示， 所述基站包括： 获取单元 91和发射单元 92， 其中： 获取单元 91，用于计算用于发射校正信号的 GP中的发射时隙位置， 所述 发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信号而计算 的，且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述第 二网络为所述第一网络所在的混合组网包括的网络。
可选的， 获取单元 91可以是动态地计算上述发射时隙位置， 也可以是静 态是计算上述发射时隙位置。其中， 动态计算可以是指在需要发射上述校正信 号时， 计算此时 GP内的发射时隙位置， 这样可以实现随第二网络的信号而改 变上述发射时隙位置。静态计算可以是指预先计算上述发射时隙位置， 即该发 射时隙位置可以是固定。
可选的， 对于静态计算， 获取单元 91具体可以用于基于所述第一网络的 时隙配置和所述第二网络的时隙配置， 计算在用于发射校正信号的 GP内发射 时，所述 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。
具体可以是预先估算出在用于发射校正信号的 GP发射时， 所述 GP内包 括的所述第二网络的信号量小于预设信号量的发射时隙位置。 例如计算该 GP 内不与所述第二网络中用于发射信号的时隙位置相同的时隙位置作为上述发 射时隙位置。 即获取单元 91具体可以用于基于所述第一网络的时隙配置和所 述第二网络的时隙配置， 计算用于发射校正信号的 GP内不与所述第二网络中 用于发射信号的时隙位置相同的发射时隙位置。
即预先获取第一网络的时隙配置和第二网络的时隙配置， 其中， 第一网络 的时隙配置具体可以包括上述 GP的时隙配置。
可选的， 上述第二网络中用于发射信号的时隙位置具体可以包括： 用于发 射下行信号的下行时隙、 用于发射上行信号的上行时隙、 DwPTS或者 UpPTS 等。
可选的， 对于动态计算， 获取单元 91具体可以用于基于所述第二网络发 射的信号， 计算用于发射校正信号的 GP内包括的所述第二网络的信号量小于 预设信号量的发射时隙位置。
即可以在需要发射校正信号时， 计算此时 GP内包括的所述第二网络的信 号量小于预设信号量的发射时隙位置。 其中， 具体可以通过计算 GP各时域样 点的功率得到 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙 位置。 因为当 GP内某个时域样点包括第二网络的信号时， 那么该时域样点就 会产生功率， 且功率与第二网络的信号量成正比。 具体可以通过计算 GP各校 正符号的能量得到 GP内包括的所述第二网络的信号量小于预设信号量的发射 时隙位置。 因为当 GP内某个时域样点包括第二网络的信号时， 那么该校正符 号就会产生能量， 且能量与第二网络的信号量成正比。 其中， 上述校正符号具 体可以是单个校正信号持续的时间长度，即校正符号可以理解长度与校正信号 长度相同的时隙位置。 例如： GP为 100us， 而一个校正信号为长度 10us， 那 么该 GP就包括 10校正符号。
可选的， 获取单元 91具体可以用于基于所述第二网络发射的信号， 计算 所述第二网络发射的信号在用于发射校正信号的 GP的每个时域样点上生产的 功率； 并从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数小于 预设阔值的时隙位置作为发射时隙位置， 其中， 所述干扰时域样点是指功率小 于预设干扰功率门限的时域样点。
可选的， 其中， 上述时域样点可以是预先设置的， 例如在 GP 内设置 30 个或者 50个时域样点， 再计算每个时域样点的功率。 由于在实际应用中第二 网络的信号泄露至第一网络的 GP内通常会干扰到一段时隙， 这样这一段时隙 就可以包括一个或者多个时域样点，从而可以通过上述功率的计算得到这一段 时隙。相反就可以得到选择出预设长度且包括连续的干扰时域样点的个数小于 预设阔值的时隙位置作为发射时隙位置。其中， 上述预设长度具体可以是等于 或者大于校正信号的长度。
上述获取单元 91从所述 GP内选择出预设长度且包括连续的干扰时域样 点的个数小于预设阔值的时隙位置作为发射时隙位置具体还可以包括：
获取单元 91将 GP包括的且功率小于干扰功率门限的时域样点确定为不 存在干扰时域样点， 并标记用 "Γ 标记； 将 GP包括的且功率大于或者等于 干扰功率门限的时域样点确定为存在干扰的时域样点， 并标记用 "0" 标记； 获取单元 91从 GP中选择出预设长度且包括连续的 "Γ 的时域样点的个 数小于预设阔值的时隙位置作为发射时隙位置。
可选的，在上述计算每个时域样点的功率之后，还可以对每个时域样点的 功率进行特定的处理， 例如： 阿尔法（alpha )滤波。
可选的， 获取单元 91具体可以用于基于所述第二网络发射的信号， 计算 所述第二网络发射的信号在用于发射校正信号的 GP的每个校正符号上生产的 能量； 其中， 所述校正符号的长度等于所述校正信号的长度； 并从所述 GP包 括的校正符号中选择出能量最小的校正符号，并将该校正符号作为发射时隙位 置。
可选的，由于上述校正符号具体可以是长度与校正信号长度相同的时隙位 置， 这样， 上述将该校正符号作为发射时隙位置具体可以是将该校正符号对应 的时隙位置作为发射时隙位置。上述校正符号可以是预先设置的。 由于在实际 应用中第二网络的信号泄露至第一网络的 GP内通常会干扰到至少一个校正符 号， 这样这至少一个校正符号就会产生能量，从而可以通过上述能量的计算得 到这至少一个校正符号。相反就可以得到选择出能量最小的校正符号， 并将该 校正符号作为发射时隙位置。
可选的， 上述基站从所述 GP包括的校正符号中选择出能量最小的校正符 号， 并将该校正符号作为发射时隙位置， 具体可以包括：
获取单元 91从所述 GP包括的校正符号中选择出能量最小的校正符号， 并计算该校正符号内每个子载波的干扰功率，选择出该校正符号包括的子载波 中干扰功率小于特定门限的至少一个子载波作为发射时隙位置中用于发射所 述校正信号的子载波。
这样就可以实现选择能量小校正符号中干扰功率小于特定门限的至少一 个子载波作为发射时隙位置中用于发射所述校正信号的子载波。从而可以进一 步降低校正信号的干扰。 当然， 本实施例还可以在上述能量小校正符号的所有 子载波上发送上述校正信号。通过上述方式，接收端还可以根据发射校正信号 的上述至少一个子载波对信道信息（例如： 信道估计值、 相位等）进行降噪处 理。
可选的， 上述计算校正符号的能量具体可以通过如下方式计算：
获取单元 91对 GP内的校正符号进行 FFT变换， 其中， FFT大小 （ size ) 可以釆用上行业务或者下行业务中 FFT size。即通过上述 FFT将校正符号釆用 的时域信号变换至频域信号。
获取单元 91计算 FFT转换后的校正符号的能量。
通过上述描述就可以实现通过计算时域样点的功率，再根据各个时域样点 的功率选择出上述发射时隙位置。
发射单元 92， 用于在所述发射时隙位置发射所述校正信号。 在另一个实施例中， 获取单元 91具体还可以用于接收网络侧设备发送的 指示信息， 所述指示信息指示用于发射校正信号的保护时隙 GP中的发射时隙 位置，发射时隙位置是所述网络侧设备基于所述第一网络的时隙配置和第二网 络的时隙配置而确定的，且受到第二网络发射的信号的干扰小于预设干扰门限 的时隙位置。
可选的， 上述网络侧设备具体可以是 OAM单元。 其中， OAM单元计算 上述发射时隙位置具体可以参考图 3-5所示的实施方式。 且 OAM单元向基站 发送的具体可以是多种场景的发射时隙位置 （例如： 第二个实施例中的表）， 基站再根据当前的时隙配置场景选择出用于发送当前的校正信号的发射时隙 位置。
该实施例中， 可以实现由网络侧设备计算上述发射时隙位置，基站再接收 上述指示信息， 从而实现降低混合组网中校正信号的干扰。
上述技术方案，在上面实施例的基础上实现了多种可选的实施方式，且都 可以实现降低混合组网中校正信号的干扰。 图 10是本发明实施例提供的另一种基站结构示意图， 所述基站为第一网 络的基站， 如图 10所示， 所述基站包括： 存储器 101和发射器 102， 以及分 别与存储器 101和发射器 102连接的处理器 103， 其中， 存储器 101用于存储 一组程序代码， 处理器 103用于调用存储器 101存储的代码执行如下操作： 获取用于发射校正信号的保护时隙 GP中的发射时隙位置， 所述发射时隙 位置是基于第二网络的时隙配置和 /或第二网络发射的信号而确定的， 且受到 第二网络发射的信号的干扰小于预设干扰门限的时隙位置；所述第二网络为所 述第一网络所在的混合组网包括的网络；
通过发射器 102在所述发射时隙位置发射所述校正信号。
可选的， 上述预设干扰门限可以是用户设置的，也可以是通信系统中预设 定义的， 例如， 上述预设干扰门限可以是 0。 受到第二网络发射的信号的干扰 小于预设干扰门限的时隙位置具体可以是指第一网络发射的校正信号受到第 二网络发射的信号的干扰小于预设干扰门限的时隙位置。且本实施例中受到第 二网络发射的信号的干扰可以是通过第二网络发射的信号量或者第二网络发 射的信号产生的功率或者能量来得到第二网络发射的信号的干扰。当上述发射 时隙位置包括第二网络的信号量越小时，表示第一网络在该发射时隙位置发射 的校正信号的干扰越小。 例如， 上述预设干扰门限为 0时， 即上述发射时隙位 置中不包括第二网络发射的信号，这样在该发射时隙位置发送的校正信号就不 存在干扰。
在另一个实施例中， 处理器 103还可以用于执行如下操作：
计算用于发射校正信号的 GP中的发射时隙位置， 所述发射时隙位置是基 于第二网络的时隙配置和 /或第二网络发射的信号而计算的， 且受到第二网络 发射的信号的干扰小于预设干扰门限的时隙位置；所述第二网络为所述第一网 络所在的混合组网包括的网络；
通过发射器 102在所述发射时隙位置发射所述校正信号。
可选的， 处理器 103执行的计算用于发射校正信号的 GP中的发射时隙位 置的操作具体可以包括：
基于所述第一网络的时隙配置和所述第二网络的时隙配置，计算在用于发 射校正信号的 GP内发射时， 所述 GP内包括的所述第二网络的信号量小于预 设信号量的发射时隙位置。
其中，发射时隙位置内包括的第二网络的信号量越小， 那么发射时隙位置 内发射受到第二网络发射的信号干扰也就越小。具体可以是预先估算出在用于 发射校正信号的 GP发射时， 所述 GP内包括的所述第二网络的信号量小于预 设信号量的发射时隙位置。 例如计算该 GP内不与所述第二网络中用于发射信 号的时隙位置相同的时隙位置作为上述发射时隙位置。
可选的，处理器 103执行的基于所述第一网络的时隙配置和所述第二网络 的时隙配置， 计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所 述第二网络的信号量小于预设信号量的发射时隙位置的操作具体可以包括： 基于所述第一网络的时隙配置和所述第二网络的时隙配置，计算用于发射 校正信号的 GP内不与所述第二网络中用于发射信号的时隙位置相同的发射时 隙位置。
即预先获取第一网络的时隙配置和第二网络的时隙配置， 其中， 第一网络 的时隙配置具体可以包括上述 GP的时隙配置。 可选的， 处理器 103执行的计算用于发射校正信号的 GP中的发射时隙位 置的操作具体可以包括：
第一网络的基站基于所述第二网络发射的信号，计算用于发射校正信号的 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。
可选的， 处理器 103 执行的第一网络的基站基于所述第二网络发射的信 号， 计算用于发射校正信号的 GP内包括的所述第二网络的信号量小于预设信 号量的发射时隙位置的操作具体可以包括：
基于所述第二网络发射的信号，计算所述第二网络发射的信号在用于发射 校正信号的 GP的每个时域样点上生产的功率；
从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数小于预设 阔值的时隙位置作为发射时隙位置，其中， 所述干扰时域样点是指功率小于预 设干扰功率门限的时域样点。
可选的， 其中， 上述时域样点可以是预先设置的， 例如在 GP 内设置 30 个或者 50个时域样点， 再计算每个时域样点的功率。 由于在实际应用中第二 网络的信号泄露至第一网络的 GP内通常会干扰到一段时隙， 这样这一段时隙 就可以包括一个或者多个时域样点，从而可以通过上述功率的计算得到这一段 时隙。相反就可以得到选择出预设长度且包括连续的干扰时域样点的个数小于 预设阔值的时隙位置作为发射时隙位置。其中， 上述预设长度具体可以是等于 或者大于校正信号的长度。
上述处理器 103从所述 GP内选择出预设长度且包括连续的干扰时域样点 的个数小于预设阔值的时隙位置作为发射时隙位置具体还可以包括：
处理器 103将 GP包括的且功率小于干扰功率门限的时域样点确定为不存 在干扰时域样点， 并标记用 "Γ 标记； 将 GP 包括的且功率大于或者等于干 扰功率门限的时域样点确定为存在干扰的时域样点， 并标记用 "0" 标记； 基站从 GP中选择出预设长度且包括连续的 Γ 的时域样点的个数小于预 设阔值的时隙位置作为发射时隙位置。
可选的，在上述计算每个时域样点的功率之后，还可以对每个时域样点的 功率进行特定的处理， 例如： 阿尔法（alpha )滤波。
可选的， 处理器 103 执行的第一网络的基站基于所述第二网络发射的信 号， 计算用于发射校正信号的 GP内包括的所述第二网络的信号量小于预设信 号量的发射时隙位置的操作具体可以包括：
基于所述第二网络发射的信号，计算所述第二网络发射的信号在用于发射 校正信号的 GP的每个校正符号上生产的能量； 其中， 所述校正符号的长度等 于所述校正信号的长度；
从所述 GP包括的校正符号中选择出能量最小的校正符号， 并将该校正符 号作为发射时隙位置
可选的， 上述处理器 103从所述 GP包括的校正符号中选择出能量最小的 校正符号， 并将该校正符号作为发射时隙位置， 具体可以包括：
处理器 103从所述 GP包括的校正符号中选择出能量最小的校正符号， 并 计算该校正符号内每个子载波的干扰功率，选择出该校正符号包括的子载波中 干扰功率小于特定门限的至少一个子载波作为发射时隙位置中用于发射所述 校正信号的子载波。
在另一个实施例中， 发射器 102具体可以包括：
拉远射频单元（Remote Radio Unit, RRU ), 用于在所述发射时隙位置发 射所述校正信号。
上述技术方案中， 获取用于发射校正信号的保护时隙 GP中的发射时隙位 置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信号 而确定的， 且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述第二网络为所述第一网络所在的混合组网包括的网络；在所述发射时隙位 置发射所述校正信号。这样可以实现发送校正信号的时隙位置受到第二网络发 射的信号的干扰比较少， 从而可以降低混合组网中校正信号的干扰。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程， 是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算 机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。 其中，所述的存储介质可为磁碟、光盘、只读存储记忆体（Read-Only Memory,
ROM )或随机存取存储器 ( Random Access Memory, 简称 RAM )等。
另外， 本文中术语"系统，，和"网络"在本文中常被可互换使用。 本文中术语
"和 /或，，， 仅仅是一种描述关联对象的关联关系， 表示可以存在三种关系， 例 如， A和 /或 可以表示： 单独存在 ， 同时存在 和^ 单独存在 B这三 种情况。 另外， 本文中字符" /，，， 一般表示前后关联对象是一种"或，，的关系。 在 上述实施例中，对各个实施例的描述都各有侧重， 某个实施例中没有详述的部 分， 可以参见其他实施例的相关描述。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之 权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims

权 利 要 求
1、 一种校正信号发射方法， 其特征在于， 包括：
第一网络的基站获取用于发射校正信号的保护时隙 GP 中的发射时隙位 置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信号 而确定的， 且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位置； 所述第二网络为所述第一网络所在的混合组网包括的网络；
所述基站在所述发射时隙位置发射所述校正信号。
2、 如权利要求 1所述的方法， 其特征在于， 所述第一网络的基站获取用 于发射校正信号的 GP中的发射时隙位置， 包括：
所述第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时 隙配置， 计算在用于发射校正信号的 GP内发射时， 所述 GP内包括的所述第 二网络的信号量小于预设信号量的发射时隙位置； 或者
所述第一网络的基站基于所述第二网络发射的信号，计算用于发射校正信 号的 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。
3、 如权利要求 2所述的方法， 其特征在于， 所述第一网络的基站基于所 述第一网络的时隙配置和所述第二网络的时隙配置，计算在用于发射校正信号 的 GP内发射时， 所述 GP内包括的所述第二网络的信号量小于预设信号量的 发射时隙位置， 包括：
所述第一网络的基站基于所述第一网络的时隙配置和所述第二网络的时 隙配置， 计算用于发射校正信号的 GP内不与所述第二网络中用于发射信号的 时隙位置相同的发射时隙位置。
4、 如权利要求 2所述的方法， 其特征在于， 所述第一网络的基站基于所 述第二网络发射的信号， 计算用于发射校正信号的 GP内包括的所述第二网络 的信号量小于预设信号量的发射时隙位置， 包括：
所述第一网络的基站基于所述第二网络发射的信号，计算所述第二网络发 射的信号在用于发射校正信号的 GP的每个时域样点上生产的功率； 所述基站从所述 GP内选择出预设长度且包括连续的干扰时域样点的个数 小于预设阔值的时隙位置作为发射时隙位置， 其中， 所述干扰时域样点是指功 率小于预设干扰功率门限的时域样点。
5、 如权利要求 2所述的方法， 其特征在于， 所述第一网络的基站基于所 述第二网络发射的信号， 计算用于发射校正信号的 GP内包括的所述第二网络 的信号量小于预设信号量的发射时隙位置， 包括：
所述第一网络的基站基于所述第二网络发射的信号，计算所述第二网络发 射的信号在用于发射校正信号的 GP的每个校正符号上生产的能量； 其中， 所 述校正符号的长度等于所述校正信号的长度；
所述基站从所述 GP包括的校正符号中选择出能量最小的校正符号， 并将 该校正符号作为发射时隙位置。
6、 如权利要求 1-5 中任一项所述的方法， 其特征在于， 所述第一网络的 基站获取用于发射校正信号的保护时隙 GP中的发射时隙位置， 包括：
所述第一网络的基站接收网络侧设备发送的指示信息，所述指示信息指示 用于发射校正信号的保护时隙 GP中的发射时隙位置， 发射时隙位置是所述网 络侧设备基于所述第一网络的时隙配置和第二网络的时隙配置而确定的，且受 到第二网络发射的信号的干扰小于预设干扰门限的时隙位置。
7、 一种基站， 其特征在于， 所述基站为第一网络的基站， 所述基站包括： 获取单元和发射单元， 其中：
所述获取单元， 用于获取用于发射校正信号的保护时隙 GP中的发射时隙 位置， 所述发射时隙位置是基于第二网络的时隙配置和 /或第二网络发射的信 号而确定的， 且受到第二网络发射的信号的干扰小于预设干扰门限的时隙位 置； 所述第二网络为所述第一网络所在的混合组网包括的网络；
所述发射单元， 用于在所述发射时隙位置发射所述校正信号。
8、 如权利要求 7所述的基站， 其特征在于， 所述获取单元具体用于基于 所述第一网络的时隙配置和所述第二网络的时隙配置，计算在用于发射校正信 号的 GP内发射时， 所述 GP内包括的所述第二网络的信号量小于预设信号量 的发射时隙位置； 或者
所述获取单元具体用于基于所述第二网络发射的信号，计算用于发射校正 信号的 GP内包括的所述第二网络的信号量小于预设信号量的发射时隙位置。
9、 如权利要求 8所述的基站， 其特征在于， 所述获取单元具体用于基于 所述第一网络的时隙配置和所述第二网络的时隙配置，计算用于发射校正信号 的 GP内不与所述第二网络中用于发射信号的时隙位置相同的发射时隙位置。
10、 如权利要求 8所述的基站， 其特征在于， 所述获取单元具体用于基于 所述第二网络发射的信号，计算所述第二网络发射的信号在用于发射校正信号 的 GP的每个时域样点上生产的功率； 并从所述 GP内选择出预设长度且包括 连续的干扰时域样点的个数小于预设阔值的时隙位置作为发射时隙位置， 其 中， 所述干扰时域样点是指功率小于预设干扰功率门限的时域样点。
11、 如权利要求 8所述的基站， 其特征在于， 所述获取单元具体用于基于 所述第二网络发射的信号，计算所述第二网络发射的信号在用于发射校正信号 的 GP的每个校正符号上生产的能量； 其中， 所述校正符号的长度等于所述校 正信号的长度； 并从所述 GP包括的校正符号中选择出能量最小的校正符号， 并将该校正符号作为发射时隙位置。
12、 如权利要求 7-11 中任一项所述的基站， 其特征在于， 所述获取单元 具体用于接收网络侧设备发送的指示信息，所述指示信息指示用于发射校正信 号的保护时隙 GP中的发射时隙位置， 发射时隙位置是所述网络侧设备基于所 述第一网络的时隙配置和第二网络的时隙配置而确定的，且受到第二网络发射 的信号的干扰小于预设干扰门限的时隙位置。
PCT/CN2014/082159 2013-09-25 2014-07-14 一种校正信号发射方法和基站 WO2015043285A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14847528.8A EP3038310B1 (en) 2013-09-25 2014-07-14 Correction signal transmitting method and base station
US15/079,654 US10631290B2 (en) 2013-09-25 2016-03-24 Correction signal transmission method and base station

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310441861.9A CN104468433B (zh) 2013-09-25 2013-09-25 一种校正信号发射方法和基站
CN201310441861.9 2013-09-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/079,654 Continuation US10631290B2 (en) 2013-09-25 2016-03-24 Correction signal transmission method and base station

Publications (1)

Publication Number Publication Date
WO2015043285A1 true WO2015043285A1 (zh) 2015-04-02

Family

ID=52741989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/082159 WO2015043285A1 (zh) 2013-09-25 2014-07-14 一种校正信号发射方法和基站

Country Status (4)

Country Link
US (1) US10631290B2 (zh)
EP (1) EP3038310B1 (zh)
CN (1) CN104468433B (zh)
WO (1) WO2015043285A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117240407A (zh) * 2023-10-26 2023-12-15 天地信息网络研究院(安徽)有限公司 一种连续帧帧头检测算法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104468433B (zh) * 2013-09-25 2018-07-20 华为技术有限公司 一种校正信号发射方法和基站
CN107426818B (zh) * 2016-05-24 2020-05-01 中国移动通信有限公司研究院 一种信号传输方法、基站、终端设备及系统
CN107733598B (zh) * 2016-08-11 2021-04-06 中国移动通信有限公司研究院 一种消息传输方法、用户设备及基站
JP6973502B2 (ja) 2017-04-28 2021-12-01 日本電気株式会社 ランダムアクセスプロセスの方法、端末デバイス、ネットワーク要素、および装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008160618A (ja) * 2006-12-26 2008-07-10 Kyocera Corp 無線通信システム、無線端末装置、基地局、および無線通信方法
CN101232314A (zh) * 2008-01-22 2008-07-30 中兴通讯股份有限公司 一种时分双工智能天线系统校正的方法及装置
CN101304276A (zh) * 2008-06-30 2008-11-12 华为技术有限公司 一种发射通道校正的方法及系统
CN102244531A (zh) * 2010-05-14 2011-11-16 电信科学技术研究院 一种天线校准位置动态调整的方法及装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5539730A (en) * 1994-01-11 1996-07-23 Ericsson Ge Mobile Communications Inc. TDMA/FDMA/CDMA hybrid radio access methods
US6175560B1 (en) * 1995-06-02 2001-01-16 Airspan Networks, Inc. Apparatus and method of establishing and maintaining communication paths in a wireless telecommunications system
CN101027857B (zh) * 2004-09-29 2011-02-02 富士通株式会社 发送功率控制装置及发送功率控制方法
US8948805B2 (en) * 2005-08-26 2015-02-03 Qualcomm Incorporated Method and apparatus for reliable transmit power and timing control in wireless communication
CN101064902B (zh) * 2006-04-25 2010-11-10 大唐移动通信设备有限公司 实时校准智能天线的方法
JP4399672B2 (ja) * 2006-08-30 2010-01-20 京セラ株式会社 通信装置及び制御方法
US8780790B2 (en) * 2008-01-07 2014-07-15 Qualcomm Incorporated TDD operation in wireless communication systems
US8670432B2 (en) * 2009-06-22 2014-03-11 Qualcomm Incorporated Methods and apparatus for coordination of sending reference signals from multiple cells
JP2011066874A (ja) * 2009-08-17 2011-03-31 Sony Corp 通信システム、通信装置及び通信方法、並びにコンピューター・プログラム
CN102007789B (zh) * 2009-11-12 2016-08-03 高通股份有限公司 用于促进动态时隙分配的装置和方法
US8897236B2 (en) * 2010-03-26 2014-11-25 Qualcomm Incorporated Physical downlink shared channel (PDSCH) protection
CN102201879B (zh) 2011-06-20 2013-06-19 合肥东芯通信股份有限公司 Lte系统干扰噪声的测量方法及设备
US8565114B2 (en) * 2011-07-29 2013-10-22 Nokia Corporation Cognitive radio resource utilization
CN104468433B (zh) * 2013-09-25 2018-07-20 华为技术有限公司 一种校正信号发射方法和基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008160618A (ja) * 2006-12-26 2008-07-10 Kyocera Corp 無線通信システム、無線端末装置、基地局、および無線通信方法
CN101232314A (zh) * 2008-01-22 2008-07-30 中兴通讯股份有限公司 一种时分双工智能天线系统校正的方法及装置
CN101304276A (zh) * 2008-06-30 2008-11-12 华为技术有限公司 一种发射通道校正的方法及系统
CN102244531A (zh) * 2010-05-14 2011-11-16 电信科学技术研究院 一种天线校准位置动态调整的方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3038310A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117240407A (zh) * 2023-10-26 2023-12-15 天地信息网络研究院(安徽)有限公司 一种连续帧帧头检测算法
CN117240407B (zh) * 2023-10-26 2024-01-12 天地信息网络研究院(安徽)有限公司 一种连续帧帧头检测方法

Also Published As

Publication number Publication date
US10631290B2 (en) 2020-04-21
EP3038310A4 (en) 2016-09-28
CN104468433B (zh) 2018-07-20
EP3038310A1 (en) 2016-06-29
EP3038310B1 (en) 2019-05-08
CN104468433A (zh) 2015-03-25
US20160205684A1 (en) 2016-07-14

Similar Documents

Publication Publication Date Title
US10411871B2 (en) Wireless communication method, device, and system
US9820244B2 (en) Time-advanced random access channel transmission
EP3490316B1 (en) Information transmission method and information transmission apparatus
US8243634B2 (en) Random access in time division duplex communication systems
WO2018059307A1 (zh) 通信方法、基站和终端设备
US11528728B2 (en) Information transmission method and device
WO2019213873A1 (zh) 无线通信方法和终端
US11558865B2 (en) Resource indication method, base station and terminal
US20210410182A1 (en) Random access method and apparatus
CN111343717B (zh) 一种寻呼消息的接收方法、发送方法、终端设备及网络设备
US20220046563A1 (en) Wireless Communication Method and Device
US10631290B2 (en) Correction signal transmission method and base station
CN108476491B (zh) 一种无线通信方法、设备及系统
US10405343B2 (en) Radio frame transmission method and wireless network device
EP3595352B1 (en) Method for transmitting information, method for receiving information, network device and terminal device
EP3402091B1 (en) Signal transmission method, receiving method, terminal device, base station and system
KR20150050308A (ko) Tdd 시스템에서 gp를 결정하는 방법 및 장치
WO2017190272A1 (zh) 一种干扰消除方法及基站
CN111432488B (zh) 终端设备、网络设备、上行发送方法和上行接收方法
WO2017166311A1 (zh) 一种上行信息的传输方法及设备、系统
EP3530044A1 (en) Modified multi-slot extended coverage random access channel transmission

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14847528

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2014847528

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE