WO2010130091A1 - 同频干扰抑制方法和装置 - Google Patents

同频干扰抑制方法和装置 Download PDF

Info

Publication number
WO2010130091A1
WO2010130091A1 PCT/CN2009/071779 CN2009071779W WO2010130091A1 WO 2010130091 A1 WO2010130091 A1 WO 2010130091A1 CN 2009071779 W CN2009071779 W CN 2009071779W WO 2010130091 A1 WO2010130091 A1 WO 2010130091A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
base station
spreading
spread spectrum
function
Prior art date
Application number
PCT/CN2009/071779
Other languages
English (en)
French (fr)
Inventor
谢铂云
邱勇
刘晟
邢平平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2009/071779 priority Critical patent/WO2010130091A1/zh
Priority to CN200980000121.3A priority patent/CN102318195B/zh
Publication of WO2010130091A1 publication Critical patent/WO2010130091A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a co-channel interference suppression method and apparatus.
  • Micro-cells came into being.
  • Such a micro cell may include a cell with a smaller coverage than a macro cell, such as a Femto cell, a Pico cell, and the like, and may be, for example, a Home eNodeB (Home eNodeB), a Home Cell, and an access point (Access). Point) and private cells, etc., as well as private networks of certain frequency layers.
  • Such micro cells may include CSG (Closed Subscriber Group) cells and non-CSG cells.
  • microcells and macrocells may be deployed on the same frequency in order to make full use of spectrum resources. Since the coverage of the micro cell is small and is completely within the coverage of the macro cell, the macro cell will cause great interference to the micro cell.
  • the micro-cell has a small transmission power, and has less interference to terminals other than the micro-cell coverage in the macro-cell, but has a large interference to the terminal that is in the micro-cell coverage area and resides in the macro-cell.
  • Embodiments of the present invention provide a co-channel interference suppression method and apparatus, which reduce interference between intra-frequency cells.
  • the embodiment of the present invention provides a co-channel interference suppression method, including: starting a spread spectrum function according to a measurement result of performing measurement on an intra-frequency macro cell;
  • the embodiment of the present invention further provides a co-channel interference suppression method, including: receiving a signal sent by a micro cell base station, where the signal is subjected to a spread spectrum function by the micro cell base station, and then performing a spread spectrum process; The spread spectrum function is initiated by the measurement result measured according to the same frequency macro cell;
  • an embodiment of the present invention further provides a communication apparatus, including: an activation unit, configured to start a spread spectrum function according to a measurement result of performing measurement on an intra-frequency macro cell;
  • a processing unit configured to perform a spreading process on the signal to be transmitted, and send the signal processed by the spreading.
  • the embodiment of the present invention further provides a communication apparatus, including: a receiving unit, configured to receive a signal sent by a micro cell base station, where the signal is subjected to a spread spectrum function by the micro cell base station, and then performing a spread spectrum process.
  • the spreading function is initiated by a measurement result measured according to an intra-frequency macro cell;
  • the processing unit performs despreading processing on the signal received by the receiving unit.
  • a micro cell is deployed in a macro cell, and a macro cell and a micro cell are in the same frequency, and when interference occurs to a terminal under the micro cell, the cell is activated in the micro cell base station according to the measurement condition of the macro cell.
  • the frequency function performs spreading processing on the signal to be transmitted, effectively eliminating strong interference between the micro cell and the co-frequency macro cell in the network.
  • FIG. 1 is a schematic flowchart diagram of a co-channel interference suppression method according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a co-channel interference suppression method according to another embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a co-channel interference suppression method according to another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a co-channel interference suppression method according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a communication apparatus according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a communication apparatus according to another embodiment of the present invention.
  • an embodiment of the present invention provides a co-channel interference suppression method, including:
  • Step 101 The spread spectrum function is started according to the measurement result of the measurement of the same frequency macro cell.
  • Step 102 Perform a spread spectrum processing on the signal to be transmitted, and send the spread spectrum processed signal.
  • an embodiment of the present invention further provides a co-channel interference suppression method, including:
  • 201 Receive a signal sent by the micro cell base station, where the signal is subjected to a spreading function after the micro cell base station starts the spreading function; and the spreading function is started by the measurement result measured according to the same frequency macro cell.
  • the signal sent by the micro cell base station is received. Because the interference between the micro cell and the co-frequency macro cell is suppressed, the spreading function is started in the micro cell base station, and the signal to be sent is performed. Spread spectrum processing.
  • a micro cell is deployed in a macro cell, and a macro cell and a micro cell are in the same frequency, and when interference occurs to a terminal under the micro cell, the cell is activated in the micro cell base station according to the measurement condition of the macro cell.
  • the frequency function performs spreading processing on the signal to be transmitted, effectively eliminating strong interference between the micro cell and the co-frequency macro cell in the network.
  • another embodiment of the present invention provides a co-channel interference suppression method, including:
  • the micro-cell base station measures the wireless environment, and starts the spread spectrum function according to the measurement result.
  • the micro-cell base station measures the signal strength of the same-frequency macro cell. If the measured signal strength of the same-frequency macro cell and the signal strength of the micro-cell satisfy certain conditions, the spreading function in the micro-cell base station is activated.
  • the micro-cell base station itself may start the spread spectrum function according to the measurement result; or the micro-cell base station may be configured by the network management node in the system, and the network management node starts the spread spectrum function in the micro-cell base station.
  • the spreading function in the micro-cell base station can be activated by the following methods:
  • the signal strength threshold s tesh is set , and the s tesh can be configured by the micro cell base station or the network management node, and the s tosh can be the value when the signal strength of the same frequency macro cell and the signal strength of the micro cell are equal, when measuring When the obtained signal strength of the intra- frequency macro cell is greater than s tesh , it is determined that the signal strength of the same-frequency macro cell is higher than that of the micro- region , and the spreading function in the micro-cell base station is activated. Or, when the measured frequency of the same-frequency macro cell is greater than s tesh -s.
  • ⁇ the spread spectrum function in the micro cell base station is started, S. ⁇ is an offset that can be configured by a microcell base station or network management node.
  • the spread spectrum function is started according to the measurement result of the measurement wireless environment.
  • whether the spread spectrum function is started according to the signal quality may be determined, that is, the micro cell base station measures the same frequency macro cell.
  • Signal quality if the measured signal quality of the same-frequency macro cell and the signal quality of the micro-region meet certain conditions, the spreading function in the micro-cell base station is activated, and the specific implementation method and the signal strength are used to determine whether to start the expansion.
  • the frequency function is similar, for example, if the signal quality of the same-frequency macro cell is higher than the signal quality threshold Q tesh , or the signal quality of the same-frequency macro cell is higher than
  • the Q tesh is a value when the signal quality of the intra- frequency macro cell and the signal quality of the micro cell are equal, the Q.
  • Ffsrt is the offset.
  • the microcell base station After the microcell base station starts the spread spectrum function, it transmits information indicating that the spread spectrum function is activated to the UE.
  • the micro cell may directly notify the UEs that are allowed to access the information indicating that the spreading function is activated.
  • the information indicating that the spread spectrum function is activated may further include indicating which specific letter to which The signal of the channel is spread, and the signals of which channels are not spread. That is, whether a signal of one channel or a plurality of channels is spread can be indicated by using a flag, and whether the signals of the plurality of channels are spread or not can be respectively indicated by a plurality of flags.
  • a flag is used to indicate whether the physical broadcast channel is spread, or a flag is used to indicate whether the signals of the physical broadcast channel and the synchronization channel are spread, or two flags are used to indicate whether the physical broadcast channel and the synchronization are respectively used.
  • the signal of the channel is spread and the like.
  • the micro-cell base station can start the spread spectrum information by using the following method:
  • the network side sends information indicating that the spread spectrum function is activated to the access permission by the OMA (Open Mobile Alliance) / OTA (Over the Air) DM (Device Management) UE of the micro cell.
  • the OMA/OTA automatic configuration is implemented by using a short message as a carrier.
  • the OMA/OTA specification is used to package UE parameters in a specific format, thereby forming a specific short message to be sent to the UE. If the user's UE supports the OMA/OTA specification, the UE will convert the special short message, that is, the configuration information, into the UE parameter after the acknowledgment. Therefore, the information about the start of the spread spectrum function of the micro cell base station can be sent to the UE in the short message mode according to the OMA/OTA specification, and the UE converts the short message into the UE parameter according to the OMA/OTA format.
  • the macro cell that is in the same coverage is notified, and when the UE enters the macro cell that is in the same coverage as the micro cell, the macro cell notifies the UE that the micro cell has started the information of the spread spectrum function, when the UE After the UE is switched to the macro cell, or the UE is reselected to the macro cell, the core network MME (Management Entity, Mobility Mobile Management Entity) sends the macro cell base station to allow the UE to access. Micro cell list.
  • the macro cell can be delivered by using a dedicated signaling RRC (Radio Resource Control) connection establishment, an RRC connection reconfiguration, and the like.
  • RRC Radio Resource Control
  • an identifier may be set in the cell base station or other nodes in the network, where the identifier indicates that when the spreading function is turned off and then restarted, The UE that has notified that the information indicating that the spread spectrum function is activated will not be notified.
  • the UE After receiving the information indicating that the micro cell base station starts the spreading function, the UE sets the identifier bit.
  • the UE After receiving the information indicating that the micro-d and the base station initiates the spreading function, the UE sets and saves the flag of the micro-cell base station, that is, stores the location information of the micro-cell base station, and indicates that the UE learns the signal sent by the micro-cell base station. After the spread spectrum processing, if the UE receives the signal sent by the micro cell base station, the UE directly performs despreading processing.
  • the micro cell base station sends the signal subjected to the spread spectrum processing to the UE.
  • the signal to be transmitted is subjected to spread spectrum processing and then transmitted.
  • the microcell base station can spread the signal on the SCH (Synchronization Channel) and the signal on the PBCH (Physical Broadcast Channel) by a spreading code, and then divide the spread signal into time and frequency.
  • the two-dimensional time-frequency block is transmitted.
  • the microcell base station may perform spreading processing only on the signal on the PBCH, and then divide the spread spectrum signal into two-dimensional time-frequency blocks of time and frequency for transmission.
  • the micro cell base station may spread the signal on the PBCH and the signal on the PDSCH (Physical Downlink Shared Channel), and then divide the spread signal into a two-dimensional time-frequency block of time and frequency. Send it.
  • the microcell base station may spread the signals on the PBCH, the PDSCH, and the SCH, and then divide the spread spectrum signal into two-dimensional time-frequency blocks of time and frequency for transmission.
  • the UE despreads the received spread spectrum processed signal.
  • the flag of the micro cell base station has been set in the UE, and it is known that the signal transmitted by the micro cell base station is subjected to spreading processing, when the UE enters the micro cell.
  • the despreading process is directly performed on the received signal.
  • the UE receives the signal in a time-frequency block of the preset transmission synchronization signal, and uses the corresponding spreading code pair.
  • the received signal is despread to obtain a transmitted signal, and the PCI (Physical Cell Identity) of the micro cell base station is parsed.
  • the UE receives the signal in a preset time-frequency block of the main broadcast information.
  • the received signal is despread with the corresponding spreading code, and the main broadcast information is read.
  • the UE can parse the signals of the despread sync channel and the physical broadcast channel.
  • the UE If the signal of the spread spectrum processing sent by the micro cell base station is only the signal on the PBCH, the UE first synchronizes with the micro cell base station, and does not use the despreading method to receive the signal during the synchronization process, after the UE synchronizes with the micro cell base station.
  • the UE receives the signal of the physical broadcast channel in a preset time-frequency block.
  • the UE may confirm the spread spectrum channel according to the indication, and then despread according to parameters such as the corresponding spreading code and spreading factor. .
  • the UE may confirm the spread spectrum channel according to the indication, and then perform despreading according to parameters such as the corresponding spreading code and the spreading factor.
  • the SCH signal is despread, and the signals of the PBCH and PDSCH channels are despread after synchronization.
  • the micro cell base station when a large number of intra-frequency micro cells are deployed in the macro cell, whether to start the spreading function in the micro cell base station according to the radio environment, when the micro cell base station is activated After the spread spectrum function is activated, the active spread spectrum information is actively notified to allow access to the micro cell.
  • the UE provides a flexible signal transmission method for the micro cell base station, effectively eliminating interference between the micro cell and the co-frequency macro cell in the network, and at the same time, maintains high spectral efficiency to the maximum extent and provides a high peak rate. business.
  • another embodiment of the present invention provides a method for suppressing the same-frequency interference.
  • the UE does not receive the information that the micro-cell base station sent by the network side starts the spread spectrum, and the method includes:
  • step 401 the micro-cell base station measures the radio environment, and starts the spread spectrum function according to the measurement result.
  • the step 401 can be implemented by referring to step 301 in the method shown in FIG. 3, and details are not described herein again.
  • step 402 the micro-cell base station sends the signal of the spread spectrum processing to the UE.
  • the step 402 can be implemented by referring to step 304 in the method shown in FIG. 3, and details are not described herein again.
  • the UE despreads the received spread spectrum processed signal.
  • the UE performs OFDM (Orthogonal Frequency Division Multiplexing) demodulation on the signal transmitted by the received micro cell base station according to the location information of the micro cell that is allowed to be accessed by the UE, and simultaneously enters the micro cell. Start the timer. If the received signal is not spread, the UE may detect the micro cell base station after the timer has not timed out; if the received signal is spread by the micro cell base station, the UE cannot detect the OFDM signal. Microcell base station. In this embodiment, since the signal received by the UE is spread by the micro cell base station, the UE cannot detect the micro cell base station by using OFDM demodulation. When the timer expires, if the UE still does not demodulate the micro cell. In the area base station, the UE starts despreading, and performs despreading processing on the received signal.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the method provided in this embodiment when a large number of intra-frequency micro cells are deployed in the macro cell, whether to start the spreading function in the micro cell base station according to the radio environment, when the micro cell base station is activated After the spread spectrum function is enabled, the signal to be transmitted is spread-spectrumed to provide a flexible signal transmission method for the micro-cell base station.
  • the UE sets a timer, and when the timer expires, the despreading is started, and the reception is started. The signal is despreaded, effectively eliminating interference between the micro cell and the intra-frequency macro cell in the network.
  • FIG. 5 another embodiment of the present invention provides a communication device 500, including:
  • the starting unit 510 is configured to start a spreading function according to the measurement result of the measurement on the intra-frequency macro cell
  • the processing unit 520 is configured to perform a spreading process on the signal to be transmitted, and send the spread-processed signal.
  • the initiating unit 510 measures the signal strength of the intra-frequency macro cell. If the measured signal strength of the intra-frequency macro cell and the signal strength of the communication device 500 satisfy certain conditions, the spreading function in the communication device 500 is activated.
  • the signal strength threshold S tosh may be set, and the S tesh may be configured by a micro cell base station or a network management node, where the S tosh may be a value when the signal strength of the same frequency macro cell and the signal strength of the micro cell are equal.
  • S tosh may be a value when the signal strength of the same frequency macro cell and the signal strength of the micro cell are equal.
  • S. ⁇ is an offset that can be configured by a microcell base station or network management node.
  • the spread spectrum function is started according to the measurement result of the measurement wireless environment, and according to the signal strength of the cell, whether the spread spectrum function is started according to the signal quality may be determined, and the specific implementation method and the signal strength are used to determine whether The function of starting the spread spectrum is similar, for example, if the signal quality of the same-frequency macro cell is higher than the signal quality threshold Q tesh , or the signal quality of the same-frequency macro cell is higher than At the microcell
  • the spreading function is started in the base station, where the Q tesh is a value when the signal quality of the same-frequency macro cell and the signal quality of the micro- region are equal, the Q. Ffsrt is the offset.
  • the processing unit 520 After the activation unit 510 activates the spreading function of the communication device 500, the processing unit 520 performs a spreading process on the signal to be transmitted and transmits it.
  • the processing unit 520 may perform spreading on the signal on the SCH and the signal on the PBCH with a spreading code, and then divide the spread signal into two-dimensional video blocks of time and frequency for transmission; or, may only be on the PBCH
  • the signal is subjected to spread spectrum processing, and then the spread spectrum signal is divided into two-dimensional time-frequency blocks of time and frequency for transmission; or, the micro-cell base station can spread the signal on the PBCH and the signal on the PDSCH, and then The spread spectrum signal is divided into two-dimensional time-frequency blocks of time and frequency for transmission.
  • the microcell base station may spread the signals on the PBCH, PDSCH, and SCH, and then divide the spread spectrum signal into two-dimensional time-frequency blocks of time and frequency for transmission.
  • the communication device 500 may further include a notifying unit 530 for notifying the user equipment of the information indicating that the spreading function is activated.
  • the notification unit 530 sends information indicating that the spread spectrum function is activated to the UE, and the information indicating that the spread spectrum function is activated may further include indicating which channels of the signals are specifically spread.
  • the signal of the channel has no sign of spreading. That is, whether a signal of one channel or a plurality of channels is spread can be indicated by using a flag, and whether the signals of the plurality of channels are spread or not can be respectively indicated by a plurality of flags.
  • the notification unit 503 can directly notify the UEs that are permitted to access the information indicating that the spreading function is activated. If the list of UEs that are allowed to access is not stored in the communication device 500, the UE may be informed by other network nodes. For example, the UE may be notified of the spread spectrum information by the cell base station by: The network side transmits information indicating that the spreading function is activated through the application layer protocol OMA/OTA DM to the UE that is allowed to access the micro cell.
  • the OMA/OTA automatic configuration is implemented by using a short message as a carrier, and the OMA/OTA specification is used to package the UE parameters in a specific format, thereby forming a specific short message to be sent to the UE. If the user's UE supports the OMA/OTA specification, the UE will convert this special short message, that is, the configuration information, into the UE parameter after the acknowledgment. Therefore, the information about the start of the spread spectrum function of the micro cell base station can be sent to the UE in the short message mode according to the OMA/OTA specification, and the UE converts the short message into the UE parameter according to the OMA/OTA format.
  • the macro cell is notified to the same macro.
  • the macro cell notifies the UE that the micro cell initiates the spreading function, when the UE After the cell is switched to the macro cell, or the UE is reselected to the macro cell, the core network MME sends a micro cell list that allows the UE to access the macro cell base station.
  • the macro cell can be delivered by using a dedicated signaling RRC connection establishment, RRC connection reconfiguration, and the like.
  • another embodiment of the present invention provides a communication apparatus 600, including: a receiving unit 610, configured to receive a signal sent by a micro cell base station, where the signal is started by the micro cell base station to perform a spreading function. Spreading processing, the spreading function being initiated by a measurement result measured according to a co-frequency macro cell;
  • the processing unit 620 performs despreading processing on the signal received by the receiving unit 610.
  • the communication device 600 enters the coverage area of the micro cell base station, and the micro cell base station allows the communication device to access.
  • the micro cell base station activates the spread spectrum function and performs spreading processing on the transmitted signal.
  • the receiving unit 610 of the communication device 600 receives the spread spectrum processed signal transmitted by the micro cell base station.
  • the processing unit 620 performs despreading processing on the signal received by the receiving unit 610. If the signal subjected to the spread spectrum processing transmitted by the micro cell base station is a signal on the SCH and a signal on the PBCH, the communication device 600 is in a time-frequency block of the preset transmission synchronization signal.
  • Receiving a signal despreading the received signal with a corresponding spreading code to obtain a transmitted signal, parsing the PCI of the micro cell base station, and then receiving in a preset time-frequency block transmitting the main broadcast information.
  • the signal is despread by the corresponding spreading code to read the main broadcast information.
  • the communication device 600 first synchronizes with the micro cell base station, and does not use the despreading method to receive the signal during the synchronization process, and synchronizes with the micro cell base station. Thereafter, the signal of the physical broadcast channel is received in a preset time-frequency block.
  • the communication device 600 confirms the spread spectrum channel, and then despreads according to parameters such as the corresponding spreading code and spreading factor.
  • the communication device 600 confirms the spread spectrum channel, and then despreads according to parameters such as the corresponding spreading code and spreading factor.
  • the SCH signal is despread, and the signals of the PBCH and PDSCH channels are despread after synchronization.
  • the receiving unit 610 is further configured to receive information indicating that the micro cell base station starts the spreading function, and the information indicating that the spreading function is activated may further include indicating which channels of the specific frequency are spread, and which channels are not. A sign for spreading. That is, whether a signal of one channel or a plurality of channels is spread may be indicated by using a flag, and whether the signals of the plurality of channels are spread may also respectively indicate a plurality of flags for each channel; the communication device
  • the indicator 600 may further include an identifier setting unit 630, configured to set an identifier according to the information received by the receiving unit 610, where the identifier indicates that the microcell base station activates a spreading function, and the microcell base station is configured to start spreading in the communication device 600. Identification of the function, when the communication device 600 enters the micro cell When the coverage is over, the received signal transmitted by the micro cell can be directly subjected to despreading processing.
  • the communication device 600 may further include a timer setting unit 640 for setting a timer.
  • the processing unit 620 is configured to perform despreading processing on the signal if the micro cell base station is not detected after the timer expires.
  • the communication device 600 performs OFDM demodulation on the signal transmitted by the received micro cell base station according to the location information of the micro cell allowed to access the micro cell, and starts the timer at the same time, if the received signal is not expanded.
  • the communication device 600 may detect the micro cell base station when the timer has not timed out; if the received signal is spread by the micro cell base station, the communication device 600 cannot detect the micro cell base station by OFDM demodulation.
  • the communication device 600 since the signal received by the receiving unit 610 is spread by the micro cell base station, the communication device 600 cannot detect the micro cell base station by OFDM demodulation, and if the timer expires, if there is still no solution.
  • the processing unit 620 performs despreading and performs despreading processing on the received signal.
  • the method provided in this embodiment when a large number of intra-frequency micro cells are deployed in the macro cell, determining whether to activate the spreading function in the micro cell base station according to the radio environment, and when the micro cell base station starts the spreading function, the signal to be sent.
  • the spread spectrum processing provides a flexible signal transmission method for the micro cell base station.

Description

同频干扰抑制方法和装置
技术领域 本发明涉及通信技术领域，特别涉及一种同频干扰抑制方法和装 置。
背景技术
用户需求随着移动通信技术的发展越来越多样化，系统设备为了 适应这种需求也出现多样化，备受关注的家庭室内覆盖和企业级的内 部覆盖基站以及其他私有网络 ( Private Network )等微小区应运而生。 这种微小区可以包括 Femto小区、 Pico小区等相对于宏小区而言覆盖 范围较小的小区，例如可以是 HeNB( Home eNodeB,家庭演进基站）、 家庭小区（ Home Cell )、接入点（ Access Point )以及私有小区（ Private Cell )等，还有某些特定频率层的私有网络。这种微小区可以包括 CSG ( Closed Subscriber Group, 限制签约用户组 ) 小区和非 CSG小区。
在网络部署时由于频谱资源的紧缺和昂贵，运营商为了充分利用 频谱资源， 可能将微小区和宏小区在同一个频率上部署。 由于微小区 覆盖范围小， 完全位于宏小区的覆盖范围内，宏小区将对微小区造成 很大干扰。微小区发射功率较小， 对宏小区内微小区覆盖以外的终端 干扰较小，但对处于微小区覆盖区域又驻留在宏小区内的终端干扰较 大。
现有技术中， 对于宏小区之间的干扰， 采用了干扰随机化、 干扰 消除以及干扰协调技术等方法来消除干扰，对于宏小区之间的干扰消 除主要是在小区的边缘进行频率复用。但是， 由于整个微小区覆盖范 围都位于宏小区中，无法采用现有技术中宏小区之间干扰解决方案对 微小区与宏小区之间的同频干扰进行消除。 发明内容
本发明实施例提供了一种同频干扰抑制方法和装置，减少同频小 区之间的干扰。
一方面， 本发明实施例提供了一种同频干扰抑制方法， 包括： 根 据对同频宏小区进行测量的测量结果， 启动扩频功能；
将待发送的信号进行扩频处理， 发送所述经扩频处理的信号。 另一方面，本发明实施例还提供了一种同频干扰抑制方法，包括： 接收微小区基站发送的信号，所述信号由所述微小区基站启动扩频功 能后进行扩频处理；所述扩频功能由根据对同频宏小区进行测量的测 量结果启动；
对所述接收到的信号进行解扩处理。
另一方面， 本发明实施例还提供了一种通信装置， 包括： 启动单 元， 用于根据对同频宏小区进行测量的测量结果启动扩频功能；
处理单元， 用于对待发送的信号进行扩频处理， 并发送所述经扩 频处理的信号。
另一方面， 本发明实施例还提供了一种通信装置， 包括： 接收单 元， 用于接收微小区基站发送的信号， 所述信号由所述微小区基站启 动扩频功能后进行扩频处理，所述扩频功能由根据对同频宏小区进行 测量的测量结果启动；
处理单元， 对所述接收单元接收到的信号进行解扩处理。
根据本发明实施例提供的方法， 在宏小区中部署微小区，宏小区 与微小区同频， 对微小区下的终端产生干扰时， 根据对宏小区的测量 情况，在微小区基站中启动扩频功能，对待发送的信号进行扩频处理， 有效地消除了网络中微小区和同频宏小区之间的强干扰。 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性的前提下， 还可以根据这 些附图获得其他的附图。
图 1 所示为本发明的一个实施例提供的一种同频干扰抑制方法 流程示意图；
图 2 所示为本发明的另一个实施例提供的一种同频干扰抑制方 法流程示意图；
图 3 所示为本发明的另一个实施例提供的一种同频干扰抑制方 法示意图；
图 4 所示为本发明的另一个实施例提供的一种同频干扰抑制方 法示意图；
图 5 所示为本发明的另一个实施例提供的一种通信装置的结构 示意图；
图 6 所示为本发明的另一个实施例提供的一种通信装置的结构 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 通技术人员在没有做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。 参照图 1 , 本发明的一个实施例提供了一种同频干扰抑制方法， 包括：
101 : 才艮据对同频宏小区进行测量的测量结果， 启动扩频功能。 102: 将待发送的信号进行扩频处理， 发送所述经扩频处理的信 号。
参照图 2,本发明实施例还提供了一种同频干扰抑制方法， 包括：
201 : 接收微小区基站发送的信号， 所述信号由所述微小区基站 启动扩频功能后进行扩频处理；所述扩频功能由根据对同频宏小区进 行测量的测量结果启动。
当 UE进入到允许接入的微小区时，接收到微小区基站发送的信 号， 由于为了抑制微小区和同频宏小区之间的干扰，微小区基站中启 动扩频功能， 对待发送的信号进行扩频处理。
202: 对所述接收到的信号进行解扩处理。
根据本发明实施例提供的方法， 在宏小区中部署微小区， 宏小区 与微小区同频， 对微小区下的终端产生干扰时， 根据对宏小区的测量 情况，在微小区基站中启动扩频功能，对待发送的信号进行扩频处理， 有效地消除了网络中微小区和同频宏小区之间的强干扰。
参照图 3，本发明的另一个实施例提供了一种同频干扰抑制方法， 包括：
301 : 微小区基站测量无线环境， 根据测量结果启动扩频功能。 微小区基站测量同频宏小区的信号强度，如果测量得到的同频宏 小区的信号强度与所述微小区的信号强度满足一定条件时，则启动微 小区基站中的扩频功能。可以由微小区基站自身根据测量结果启动扩 频功能； 或者可以由系统中的网管节点对微小区基站进行配置， 网管 节点启动该微小区基站中的扩频功能。 根据同频宏小区的信号强度与所述微小区的信号强度满足一定 条件启动微小区基站中的扩频功能可以通过以下方法实现：
例如， 设置信号强度门限值 stesh , 该 stesh可以由微小区基站或者 网管节点配置，该 stosh可以是同频宏小区的信号强度和微小区的信号 强度相等时的取值， 当测量得到的同频宏小区的信号强度大于 stesh 时， 则确定同频宏小区的信号强度高于微小区的信号强度， 启动微小 区基站中的扩频功能。 或者， 当测量得到的同频宏小区的信号强度大 于 stesh -s。^时， 启动微小区基站中的扩频功能， S。^是一个偏移量， 可以由微小区基站或者网管节点进行配置。
在本发明实施例中， 根据测量无线环境的测量结果启动扩频功 能， 除了根据小区的信号强度外，还可以根据信号质量来判断是否启 动扩频功能， 即微小区基站测量同频宏小区的信号质量， 如果测量得 到的同频宏小区的信号质量与所述微小区的信号质量满足一定条件 时， 则启动微小区基站中的扩频功能， 具体实现方法和根据信号强度 来判断是否启动扩频功能相似， 例如， 若所述同频宏小区的信号质量 高于信号质量门限值 Qtesh , 或者同频宏小区的信号质量高于
Qtesh - Q。^时， 在所述微小区基站中启动扩频功能， 所述 Qtesh为所述 同频宏小区的信号质量和微小区的信号质量相等时的取值，所述 Q。ffsrt 为偏移量。
302: 告知 UE微小区基站启动了扩频功能。
微小区基站启动了扩频功能后， 向 UE发送表示启动了扩频功能 的信息。
如果微小区基站中保存了允许接入该微小区的 UE的列表， 则微 小区可以直接将表示启动了扩频功能的信息通知给这些允许接入的 UE。 表示启动了扩频功能的信息可以进一步包括指示具体对哪些信 道的信号进行了扩频， 对哪些信道的信号没有进行扩频的标志。 即对 于一个信道或多个信道的信号是否进行了扩频可以使用一个标志进 行指示，针对多个信道的信号是否进行了扩频也可以分别使多个标志 对每个信道进行指示。 例如， 使用一个标志指示对物理广播信道是否 进行了扩频，或者使用一个标志指示对物理广播信道和同步信道的信 号是否进行了扩频，或者使用两个标志分别指示是否对物理广播信道 和同步信道的信号进行了扩频等。
如果微小区中没有保存允许接入的 UE列表， 可以通过其他网络 节点告知 UE。 例如， 可以通过以下方法将微小区基站启动扩频的信 息告示 UE:
网络侧通过应用层协议 OMA ( Open Mobile Alliance , 开放移动 联盟） /OTA ( Over the air, 空中下载技术） DM ( Device Management, 设备管理）将表示启动了扩频功能的信息发送给允许接入该微小区的 UE。 其中的 OMA/OTA自动配置是通过短信作为载体来实现的， OMA/OTA规范用来将 UE参数按特定的格式进行包装， 进而形成特 定的短信发送到 UE。 如果用户的 UE支持 OMA/OTA规范的话， 在 确认后 UE就会将这种特殊的短信息， 即配置信息转变为 UE参数。 因此，可以将微小区基站启动扩频功能的信息按照 OMA/OTA规范设 置后通过短信息方式下发给 UE, UE将该短信按照 OMA/OTA格式 转变为 UE参数保存。
或者， 微小区基站启动扩频功能时， 通知同覆盖的宏小区， 当 UE进入和该微小区同覆盖的宏小区时， 宏小区将表示微小区启动了 扩频功能的信息通知 UE, 当 UE切换到该宏小区， 或者 UE小区重 选到该宏小区后进行位置注册过程中， 核心网 MME ( Management Entity, Mobility移动管理实体）向宏小区基站下发允许该 UE接入的 微小区列表。宏小区可以通过专用信令 RRC( Radio Resource Control, 无线资源控制）连接建立、 RRC连接重配置等消息下发。
在本实施例中， 当将标识启动了扩频功能的信息通知给 UE后， 可以在该 小区基站中或者网络中的其他节点设置一个标识，该标识 指示当扩频功能关闭后重新启动时，对于已经通知过表示启动了扩频 功能的信息的 UE将不再通知。
303: UE在接收到表示微小区基站启动了扩频功能的信息后，设 置标识位。
UE在接收到表示微 d、区基站启动了扩频功能的信息后， 设置并 保存该微小区基站的标志位， 即保存该微小区基站的位置信息， 表示 UE获知该微小区基站发送的信号经过扩频处理， 若以后 UE接收到 该微小区基站发送的信号后， 直接进行解扩处理。
304: 微小区基站向 UE发送经过扩频处理的信号。
由于微小区基站启动了扩频功能，对需要发送的信号进行扩频处 理然后发送。 微小区基站可以对 SCH ( Synchronization Channel, 同 步信道）上的信号和 PBCH ( Physical Broadcast Channel, 物理广播信 道）上的信号以扩频码进行扩频， 然后将经扩频的信号划分到时间和 频率的二维时频块中进行发送。或者，微小区基站可以只对 PBCH上 的信号进行扩频处理，然后将经过扩频的信号划分到时间和频率的二 维时频块中进行发送。 或者， 微小区基站可以对 PBCH上的信号和 PDSCH ( Physical Downlink Shared Channel, 物理下行共享信道）上 的信号进行扩频，然后将经过扩频的信号划分到时间和频率的二维时 频块中进行发送。 或者， 微小区基站可以对 PBCH、 PDSCH和 SCH 上的信号进行扩频，然后将经过扩频的信号划分到时间和频率的二维 时频块中进行发送。 305: UE对接收的经过扩频处理的信号进行解扩。
对于允许 UE接入、 且启动了扩频功能的微小区基站， UE中已 经设置了该微小区基站的标志位，知道该微小区基站所发送的信号经 过了扩频处理， 当 UE进入该微小区的覆盖时， 对于所接收的信号， 直接进行解扩处理。
若微小区基站所发送的经过扩频处理的信号是 SCH上的信号和 PBCH上的信号， 首先， UE在预设的发送同步信号的时频块中接收 信号， 并以相应的扩频码对所接收的信号进行解扩得到被传输的信 号， 解析出该微小区基站的 PCI ( Physical Cell Identity, 物理小区标 识）， 然后， UE在预设的发送主广播信息的时频块中接收信号， 并以 相应的扩频码对所接收的信号进行解扩， 读取主广播信息。 UE可以 解析解扩后的同步信道和物理广播信道的信号。
若微小区基站所发送的经过扩频处理的信号仅是 PBCH上的信 号， UE首先和微小区基站进行同步， 同步过程中不采用解扩的方法 接收信号， 当 UE和该微小区基站同步后， UE在预设的时频块中接 收物理广播信道的信号。
若微小区基站所发送的 PBCH上的信号和 PDSCH上的信号为经 过扩频处理的信号， UE可以根据指示确认扩频的信道， 然后根据相 应的扩频码和扩频因子等参数进行解扩。
若微小区基站所发送的 PBCH、 SCH和 PDSCH上的信号为经过 扩频处理的信号， UE可以根据指示确认扩频的信道， 然后根据相应 的扩频码和扩频因子等参数进行解扩， 首先对 SCH信号进行解扩， 在进行同步后再对 PBCH和 PDSCH信道的信号进行解扩。
在本实施例提供的方法中， 在宏小区内部署大量同频微小区时， 根据无线环境决定是否启动微小区基站中的扩频功能，当微小区基站 启动了扩频功能后， 主动将启动扩频信息告知允许接入该微小区的
UE, 为微小区基站提供了灵活的信号发射方法， 有效地消除了网络 中微小区和同频宏小区之间的干扰， 同时， 在最大程度上保持了高的 频谱效率， 提供了高峰值速率业务。
参照图 4, 本发明另一实施例提供了一种同频干扰抑制方法， 在 本实施例中， UE没有接收到网络侧发送的微小区基站启动扩频的信 息， 该方法包括：
步骤 401中， 微小区基站测量无线环境， 根据测量结果启动扩频 功能， 具体的， 步骤 401可以参照图 3所示方法中步骤 301实现， 此 处不再赘述。
步骤 402中， 微小区基站向 UE发送经过扩频处理的信号， 具体 的，步骤 402可以参照图 3所示方法中步骤 304实现，此处不再赘述。
403: UE对接收的经过扩频处理的信号进行解扩。
UE根据自身保存的允许接入微小区的位置信息， 当进入微小区 时， 对接收到的微小区基站发送的信号进行 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频分复用）解调， 并同时启动 定时器。 如果接收到的信号没有经过扩频， 则 UE可以在定时器未超 时就检测到所述微小区基站；如果所接收的信号被微小区基站进行了 扩频， UE通过 OFDM解调无法检测得到该微小区基站。 在本实施例 中， 由于 UE所接收的信号被微小区基站进行了扩频， 因此， UE通 过 OFDM解调无法检测到该微小区基站， 当定时器超时后， 若 UE 仍没有解调出微小区基站， 则 UE启动解扩， 对所接收到的信号进行 解扩处理。
根据本实施例提供的方法， 在宏小区内部署大量同频微小区时， 根据无线环境决定是否启动微小区基站中的扩频功能，当微小区基站 启动了扩频功能后， 对待发送的信号进行扩频处理， 为微小区基站提 供了灵活的信号发射方法， 同时， UE通过设置定时器， 当定时器超 时后， 即启动解扩， 对接收到的信号进行解扩处理， 有效地消除了网 络中微小区和同频宏小区之间的干扰。
参照图 5 , 本发明的另一个实施例提供了一种通信装置 500, 包 括：
启动单元 510, 用于根据对同频宏小区进行测量的测量结果启动 扩频功能； 处理单元 520, 用于对待发送的信号进行扩频处理， 并发 送所述经扩频处理的信号。
启动单元 510对同频宏小区的信号强度进行测量，如果测量得到 的同频宏小区的信号强度与通信装置 500的信号强度满足一定条件 时， 启动该通信装置 500中的扩频功能。 具体可以为： 设置信号强度 门限值 Stosh , 该 Stesh可以由微小区基站或者网管节点配置， 该 Stosh可 以是同频宏小区的信号强度和微小区的信号强度相等时的取值，当测 量得到的同频宏小区的信号强度大于 Stosh时，则确定同频宏小区的信 号强度高于微小区的信号强度，启动微小区基站中的扩频功能。或者， 当测量得到的同频宏小区的信号强度大于 Stosh - Soffset时， 启动微小区 基站中的扩频功能， S。^是一个偏移量， 可以由微小区基站或者网管 节点进行配置。
在本发明实施例中， 根据测量无线环境的测量结果启动扩频功 能， 除了根据小区的信号强度外，还可以根据信号质量来判断是否启 动扩频功能，具体实现方法和根据信号强度来判断是否启动扩频功能 相似， 例如， 若所述同频宏小区的信号质量高于信号质量门限值 Qtesh , 或者同频宏小区的信号质量高于
Figure imgf000012_0001
时， 在所述微小区 基站中启动扩频功能， 所述 Qtesh为所述同频宏小区的信号质量和微 小区的信号质量相等时的取值， 所述 Q。ffsrt为偏移量。
在启动单元 510启动通信装置 500的扩频功能后， 处理单元 520 对需要发送的信号进行扩频处理后发送。 处理单元 520可以对 SCH 上的信号和 PBCH上的信号以扩频码进行扩频，然后将经扩频的信号 划分到时间和频率的二维视频块中进行发送； 或者， 可以只对 PBCH 上的信号进行扩频处理，然后将经过扩频的信号划分到时间和频率的 二维时频块中进行发送； 或者，微小区基站可以对 PBCH上的信号和 PDSCH上的信号进行扩频， 然后将经过扩频的信号划分到时间和频 率的二维时频块中进行发送。或者，微小区基站可以对 PBCH、PDSCH 和 SCH上的信号进行扩频， 然后将经过扩频的信号划分到时间和频 率的二维时频块中进行发送。
通信装置 500还可以包括通知单元 530, 用于将表示启动了扩频 功能的信息通知给用户设备。 启动单元 510启动了扩频功能后， 通知 单元 530向 UE发送表示启动了扩频功能的信息， 表示启动了扩频功 能的信息可以进一步包括指示具体对哪些信道的信号进行了扩频，对 哪些信道的信号没有进行扩频的标志。即对于一个信道或多个信道的 信号是否进行了扩频可以使用一个标志进行指示，针对多个信道的信 号是否进行了扩频也可以分别使多个标志对每个信道进行指示。如果 通信装置 500中保存了允许接入该通信装置的 UE的列表， 通知单元 503可以直接将标识启动了扩频功能的信息通知给这些允许接入的 UE。 如果通信装置 500中没有保存允许接入的 UE列表， 可以通过 其他网络节点告知 UE。 例如， 可以通过以下方法将 小区基站启动 扩频的信息告示 UE: 网络侧通过应用层协议 OMA/OTA DM将表示启动了扩频功能的 信息发送给允许接入该微小区的 UE。 其中的 OMA/OTA自动配置是 通过短信作为载体来实现的， OMA/OTA规范用来将 UE参数按特定 的格式进行包装， 进而形成特定的短信发送到 UE。 如果用户的 UE 支持 OMA/OTA规范的话， 在确认后 UE就会将这种特殊的短信息， 即配置信息转变为 UE参数。 因此， 可以将微小区基站启动扩频功能 的信息按照 OMA/OTA规范设置后通过短信息方式下发给 UE, UE 将该短信按照 OMA/OTA格式转变为 UE参数保存。
或者， 启动单元 510启动扩频功能时， 通知同覆盖的宏小区， 当 UE进入和该微小区同覆盖的宏小区时， 宏小区将表示微小区启动了 扩频功能的信息通知 UE, 当 UE切换到该宏小区， 或者 UE小区重 选到该宏小区后进行位置注册过程中，核心网 MME向宏小区基站下 发允许该 UE接入的微小区列表。 宏小区可以通过专用信令 RRC连 接建立、 RRC连接重配置等消息下发。
参照图 6, 本发明的另一实施例提供了一种通信装置 600, 包括： 接收单元 610, 用于接收微小区基站发送的信号， 所述信号由所 述微小区基站启动扩频功能后进行扩频处理，所述扩频功能由根据对 同频宏小区进行测量的测量结果启动；
处理单元 620, 对接收单元 610接收到的信号进行解扩处理。 通信装置 600进入了微小区基站的覆盖区域，且该微小区基站允 许该通信装置接入， 该微小区基站启动了扩频功能， 对发送的信号进 行扩频处理。通信装置 600的接收单元 610接收微小区基站发送的经 过扩频处理的信号。处理单元 620对接收单元 610接收的信号进行解 扩处理。 若微小区基站所发送的经过扩频处理的信号是 SCH上的信 号和 PBCH上的信号，通信装置 600在预设的发送同步信号的时频块 中接收信号，并以相应的扩频码对所接收的信号进行解扩得到被传输 的信号， 解析出该微小区基站的 PCI, 然后， 在预设的发送主广播信 息的时频块中接收信号， 并以相应的扩频码对所接收的信号进行解 扩， 读取主广播信息。
若微小区基站所发送的经过扩频处理的信号仅是 PBCH上的信 号， 通信装置 600首先和微小区基站进行同步， 同步过程中不采用解 扩的方法接收信号， 当和该微小区基站同步后， 在预设的时频块中接 收物理广播信道的信号。
若微小区基站所发送的 PBCH上的信号和 PDSCH上的信号为经 过扩频处理的信号， 通信装置 600确认扩频的信道， 然后根据相应的 扩频码和扩频因子等参数进行解扩。
若微小区基站发送的 PBCH、 SCH和 PDSCH上的信号为经过扩 频处理的信号， 通信装置 600确认扩频的信道， 然后才艮据相应的扩频 码和扩频因子等参数进行解扩， 首先对 SCH信号进行解扩， 在进行 同步后再对 PBCH和 PDSCH信道的信号进行解扩。
接收单元 610还用于接收表示所述微小区基站启动了扩频功能 的信息，表示启动了扩频功能的信息可以进一步包括指示具体对哪些 信道的信号进行了扩频， 对哪些信道的信号没有进行扩频的标志。 即 对于一个信道或多个信道的信号是否进行了扩频可以使用一个标志 进行指示，针对多个信道的信号是否进行了扩频也可以分别使多个标 志对每个信道进行指示； 该通信装置 600还可以包括标识设置单元 630, 用于根据接收单元 610接收得到的信息设置标识， 该标识指示 所述微小区基站启动了扩频功能，由于通信装置 600中设置了指示微 小区基站启动扩频功能的标识，则当该通信装置 600进入了该微小区 覆盖的范围时，可以对接收到的该微小区发送的信号直接进行解扩处 理。
通信装置 600还可以包括定时器设置单元 640,用于设置定时器； 处理单元 620用于若所述定时器超时后未检测到所述微小区基 站， 对所述信号进行解扩处理。 通信装置 600根据自身保存的允许接 入微小区的位置信息， 当进入微小区时， 对接收到的微小区基站发送 的信号进行 OFDM解调， 同时启动定时器， 如果接收到的信号没有 经过扩频，则通信装置 600可以在定时器未超时就检测到所述微小区 基站； 如果所接收的信号被微小区基站进行了扩频， 通信装置 600通 过 OFDM解调无法检测得到该微小区基站。 在本实施例中， 由于接 收单元 610所接收的信号被微小区基站进行了扩频， 因此， 通信装置 600通过 OFDM解调无法检测到该微小区基站， 当定时器超时后，若 仍没有解调出微小区基站， 则处理单元 620进行解扩， 对所接收到的 信号进行解扩处理。
根据本实施例提供的方法， 在宏小区内部署大量同频微小区时， 根据无线环境决定是否启动微小区基站中的扩频功能，当微小区基站 启动了扩频功能后， 对待发送的信号进行扩频处理， 为微小区基站提 供了灵活的信号发射方法。
本领域技术人员还可以意识到，结合本申请文件中所公开的实施 例描述的各示例的单元及算法步骤， 能够以电子硬件、计算机软件或 者二者的结合来实现， 为了清楚地说明硬件和软件的可互换性， 在上 述说明中已经按照功能一般性地描述了各示例的组成及步骤。结合本 文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执 行的软件模块， 或者二者的结合来实施。 软件模块可以置于随机存储 器（RAM )、 内存、 只读存储器（ROM )、 电可编程 ROM、 电可擦除 可编程 ROM、 寄存器、 硬盘、 可移动磁盘、 CD-ROM, 或任意其它 形式的存储介质中。
以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种同频干扰抑制方法， 其特征在于， 包括：
才艮据对同频宏小区进行测量的测量结果， 启动扩频功能； 将待发送的信号进行扩频处理， 发送所述经扩频处理的信号。
2、 根据权利要求 1所述的方法， 其特征在于， 所述将待发送 的信号进行扩频处理包括：
对物理广播信道的信号进行扩频处理； 或者，
对同步信道的信号和物理广播信道的信号进行扩频处理； 或者， 对物理广播信道的信号和物理下行共享信道的信号进行扩频处 理； 或者，
对物理广播信道的信号、同步信道的信号和物理下行共享信道的 信号进行扩频处理。
3、 根据权利要求 1或 2所述的方法， 其特征在于， 该方法还 包括： 将表示启动了扩频功能的信息通知给用户设备。
4、 根据权利要求 3所述的方法， 其特征在于， 所述表示启动 了扩频功能的信息包括指示是否对信道的信号进行扩频处理的标志， 包括：对于一个信道或多个信道的信号是否进行了扩频可以使用一个 标志进行指示； 或者， 用多个标志对多个信道的信号是否进行了扩频 分别进行单独指示。
5、 根据权利要求 3所述的方法， 其特征在于， 所述将表示启 动了扩频功能的信息通知给用户设备包括：
微小区基站将表示所述微小区基站启动了扩频功能的信息通知 给所述用户设备； 或者，
通过应用层协议将所述表示启动了扩频功能的信息通知给所述 用户设备； 或者， 将所述表示启动了扩频功能的信息通知同覆盖的宏小区，所述宏 小区将所述表示启动了扩频功能的信息通知给所述用户设备。
6、 根据权利要求 1或 2所述的方法， 其特征在于， 所述根据 对同频宏小区进行测量的测量结果， 启动扩频功能， 包括：
若所述同频宏小区的信号强度高于信号强度门限值 Stesh ,或者同 频宏小区的信号强度高于 Stesh - Soffset时， 在所述微小区基站中启动扩 频功能，所述 Sthresh为所述同频宏小区的信号强度和微小区的信号强度 相等时的取值， 所述 S。^为偏移量； 或者，
若所述同频宏小区的信号质量高于信号质量门限值 Qtosh , 或者 同频宏小区的信号质量高于 Qthresh - Qoffset时， 在所述微小区基站中启动 扩频功能， 所述 Qtosh为所述同频宏小区的信号质量和微小区的信号 质量相等时的取值， 所述 Q。^为偏移量。
7、 根据权利要求 3所述的方法， 其特征在于， 所述将表示启 动了扩频功能的信息通知给用户设备后， 设置标识， 所述标识指示在 下一次重新启动扩频后，对于已经通知了所述表示启动了扩频功能的 信息的用户设备， 不通知表示再次启动扩频功能的信息。
8、 一种同频干扰抑制方法， 其特征在于， 包括：
接收微小区基站发送的信号，所述信号由所述微小区基站启动扩 频功能后进行扩频处理；所述扩频功能由根据对同频宏小区进行测量 的测量结果启动；
对所述接收到的信号进行解扩处理。
9、 根据权利要求 8所述的方法， 其特征在于， 所述经过扩频 处理的信号包括： 同步信道的信号和物理广播信道的信号；
或者， 所述经过扩频处理的信号包括： 物理广播信道的信号； 或者， 所述经过扩频处理的信号包括： 物理广播信道的信号和物 理下行共享信道的信号；
或者， 所述经过扩频处理的信号包括： 物理广播信道的信号、 同 步信道的信号和物理广播信道的信号。
10、 根据权利要求 8或 9所述的方法， 其特征在于， 该方法还 包括：
接收表示所述微 d、区基站启动了扩频功能的信息；
根据所述信息设置标识，该标识指示所述微小区基站启动了扩频 功能。
11、 根据权利要求 8或 9所述的方法， 其特征在于， 该方法还 包括：
设置定时器；
所述对所述接收到的信号进行解扩处理包括：
若所述定时器超时后未检测到所述微小区基站，对所述信号进行 解扩处理。
12、 一种通信装置， 其特征在于， 包括：
启动单元，用于根据对同频宏小区进行测量的测量结果启动扩频 功能；
处理单元， 用于对待发送的信号进行扩频处理， 并发送所述经扩 频处理的信号。
13、 根据权利要求 12所述的通信装置， 其特征在于， 所述处理 单元用于对同步信道的信号和物理广播信道的信号进行扩频处理；或 者， 对物理广播信道的信号进行扩频处理； 或者， 对物理广播信道和 物理下行共享信道的信号进行扩频处理； 或者， 对物理广播信道、 同 步信道和物理下行共享信道的信号进行扩频处理。
14、 根据权利要求 12或 13所述的通信装置， 其特征在于， 还 包括：
通知单元， 用于将表示启动了扩频功能的信息通知给用户设备。
15、 一种通信设备， 其特征在于， 包括：
接收单元， 用于接收微小区基站发送的信号， 所述信号由所述微 小区基站启动扩频功能后进行扩频处理，所述扩频功能由根据对同频 宏小区进行测量的测量结果启动；
处理单元， 对所述接收单元接收到的信号进行解扩处理。
16、 根据权利要求 15所述的通信装置， 其特征在于， 所述接收 单元还用于接收表示所述微小区基站启动了扩频功能的信息；
该通信装置还包括标识设置单元， 用于根据所述信息设置标识， 该标识指示所述微小区基站启动了扩频功能。
17、 根据权利要求 15所述的通信装置， 其特征在于， 还包括： 定时器设置单元， 用于设置定时器；
所述处理单元用于若所述定时器超时后未检测到所述微小区基 站， 对所述信号进行解扩处理。
PCT/CN2009/071779 2009-05-13 2009-05-13 同频干扰抑制方法和装置 WO2010130091A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2009/071779 WO2010130091A1 (zh) 2009-05-13 2009-05-13 同频干扰抑制方法和装置
CN200980000121.3A CN102318195B (zh) 2009-05-13 2009-05-13 同频干扰抑制方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/071779 WO2010130091A1 (zh) 2009-05-13 2009-05-13 同频干扰抑制方法和装置

Publications (1)

Publication Number Publication Date
WO2010130091A1 true WO2010130091A1 (zh) 2010-11-18

Family

ID=43084609

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/071779 WO2010130091A1 (zh) 2009-05-13 2009-05-13 同频干扰抑制方法和装置

Country Status (2)

Country Link
CN (1) CN102318195B (zh)
WO (1) WO2010130091A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014110967A1 (zh) * 2013-01-21 2014-07-24 华为技术有限公司 一种信号接收方法及终端
US9439124B2 (en) 2012-08-10 2016-09-06 Huawei Technologies Co., Ltd. Mobility control method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167772A (zh) * 2017-05-09 2017-09-15 成都锦江电子系统工程有限公司 一种相位编码消除同频干扰方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1196843A (zh) * 1995-08-01 1998-10-21 西门子公司 用于减少蜂窝结构的无线电系统中同信道干扰的方法与配置
CN1518253A (zh) * 2003-01-15 2004-08-04 华为技术有限公司 一种正交频分复用调制解调的装置及方法
CN1787416A (zh) * 2004-12-08 2006-06-14 大唐移动通信设备有限公司 一种码分多址系统信道化码的分配方法
CN1909413A (zh) * 2005-08-02 2007-02-07 上海原动力通信科技有限公司 时隙码分多址蜂窝系统中传输可变速率数据的方法
US20080187065A1 (en) * 2007-02-06 2008-08-07 Inha-Industry Partnership Institute System and Method for Co-Channel Interference Cancellation in Cellular OFDM Systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101272603B (zh) * 2007-03-19 2013-04-17 华为技术有限公司 终端测量受限网络小区的方法及设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1196843A (zh) * 1995-08-01 1998-10-21 西门子公司 用于减少蜂窝结构的无线电系统中同信道干扰的方法与配置
CN1518253A (zh) * 2003-01-15 2004-08-04 华为技术有限公司 一种正交频分复用调制解调的装置及方法
CN1787416A (zh) * 2004-12-08 2006-06-14 大唐移动通信设备有限公司 一种码分多址系统信道化码的分配方法
CN1909413A (zh) * 2005-08-02 2007-02-07 上海原动力通信科技有限公司 时隙码分多址蜂窝系统中传输可变速率数据的方法
US20080187065A1 (en) * 2007-02-06 2008-08-07 Inha-Industry Partnership Institute System and Method for Co-Channel Interference Cancellation in Cellular OFDM Systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9439124B2 (en) 2012-08-10 2016-09-06 Huawei Technologies Co., Ltd. Mobility control method and apparatus
WO2014110967A1 (zh) * 2013-01-21 2014-07-24 华为技术有限公司 一种信号接收方法及终端

Also Published As

Publication number Publication date
CN102318195A (zh) 2012-01-11
CN102318195B (zh) 2014-04-02

Similar Documents

Publication Publication Date Title
JP6382864B2 (ja) セルラ通信ネットワークにおけるノード検出
CN107005898B (zh) 用于服务和切换的低等待时间和/或增强型分量载波发现
JP6407894B2 (ja) 休止セルにアクセスするための方法および装置
EP2709406B1 (en) Method and apparatus for cell selection in a wireless communication system
JP5885857B2 (ja) ネットワークノード及びネットワークノードにおける方法
KR101898109B1 (ko) 무선통신시스템에서 셀 선택 방법 및 장치
US8634868B2 (en) Uplink selection using sounding reference signals in radiocommunication systems
WO2016186044A1 (ja) 端末装置、基地局装置および方法
JP7300832B2 (ja) スタンドアロンマルチキャストブロードキャスト単一周波数ネットワークセル捕捉
TW201419894A (zh) 共存無線系統之間的系統間撥叫切換
US20140004850A1 (en) Apparatus and method for controlling paging in heterogeneous wireless network system
TW201517534A (zh) 用於減少從蜂巢網路到無線區域網路的干擾的通道選擇
TW200812410A (en) Cumulative neighboring cell list
EP3142421B1 (en) Device to device proximity service for terminals served by different cells
JP2022513947A (ja) システム情報を更新する方法、及びそれを使用するワイヤレス送信／受信ユニット
WO2014121507A1 (zh) 设备到设备通信方法、终端和网络设备
US20160057684A1 (en) Co-Channel Deployment of New and Legacy Carrier Types
TW201739296A (zh) 在無線通訊中發現實體細胞辨識符
JP2017169219A (ja) ユーザ端末、プロセッサ、及び方法
JP2018504047A (ja) アンライセンススペクトルにおける発見のためのタイミング情報
KR20170027320A (ko) 비허가된 라디오 주파수 스펙트럼 대역을 통한 동기화 신호들의 송신 및 수신
CN110191485B (zh) 用于测量的递送的方法和装置
US9668202B2 (en) Communication control method, user terminal, and processor
KR20180054694A (ko) 디바이스-대-디바이스 송신 및 수신을 위한 주파수 결정
EP3603327A1 (en) Terminal devices, infrastructure equipment and methods

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980000121.3

Country of ref document: CN

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

Ref document number: 09844504

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09844504

Country of ref document: EP

Kind code of ref document: A1