WO2014067487A1 - 避免d2d传输干扰的处理方法、用户设备和基站 - Google Patents

避免d2d传输干扰的处理方法、用户设备和基站 Download PDF

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Publication number
WO2014067487A1
WO2014067487A1 PCT/CN2013/086492 CN2013086492W WO2014067487A1 WO 2014067487 A1 WO2014067487 A1 WO 2014067487A1 CN 2013086492 W CN2013086492 W CN 2013086492W WO 2014067487 A1 WO2014067487 A1 WO 2014067487A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
transmission
base station
indication information
uplink pilot
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Application number
PCT/CN2013/086492
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English (en)
French (fr)
Inventor
李强
余政
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2014067487A1 publication Critical patent/WO2014067487A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • TECHNICAL FIELD Embodiments of the present invention relate to the field of communications, and, more particularly, to a processing method, user equipment, and base station that avoid D2D transmission interference.
  • BACKGROUND OF THE INVENTION Device-to-Device (D2D) communication is a new technology that allows terminals to communicate directly by multiplexing cell resources under the control of the system.
  • the D2D generally multiplexes the uplink resources of the cell when transmitting signals.
  • the base station such as an evolved base station (e B or e-NodeB, evolutional Node B)
  • e B or e-NodeB, evolutional Node B can be directly established to establish a connection and corresponding data.
  • the D2D can occupy the frequency band resources used by the normal cellular communication to save the equipment cost of the user equipment (UE, User Equipment), and only needs to add a receiving function in the uplink frequency band.
  • the uplink transmission of the D2D transmission and the normal cellular system will exist at the same time, which may cause mutual interference.
  • the uplink transmission of the cellular system interferes with the D2D transmission, because the uplink transmission power of the cellular system is adjusted according to the path loss of the user equipment from the base station.
  • the uplink user equipment is far away from the base station and close to the D2D pair, Produces huge interference with D2D transmission. Summary of the invention
  • the embodiments of the present invention provide a method, a base station, and a user equipment for avoiding D2D transmission interference, which can resolve interference of uplink signal transmission of a user equipment to D2D transmission.
  • a first aspect a method for avoiding interference of a D2D transmission is provided, where the method includes: sending, to a first user equipment, information of an uplink pilot resource allocated to a second user equipment; receiving, by the first user equipment, indication information sent by the first user equipment, The indication information indicates interference information of the uplink transmission resource that the second user equipment performs D2D transmission on the first user equipment and the third user equipment; and performs interference coordination control according to the indication information.
  • performing interference coordination control device may be implemented as: scheduling the uplink transmission resource of the second user equipment to be different from the uplink transmission resource used by the D2D transmission.
  • performing interference coordination control according to the indication information may be implemented as: informing the third user equipment to increase power of the D2D transmission.
  • the implementation information is: the indication information indicates a signal strength of the second user equipment on the uplink pilot resource; or the indication information requests the base station to perform interference coordination control.
  • the uplink pilot resource includes a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • a second aspect of the present invention provides a method for processing interference of a D2D user equipment, the method comprising: receiving information about an uplink pilot resource allocated by the base station to a second user equipment, and monitoring the uplink pilot resource An uplink pilot signal sent by the user equipment; if the strength of the uplink pilot signal interferes with the D2D transmission of the D2D user equipment, sending, to the base station, indication information, where the indication information indicates that the second user equipment is in the uplink Information on the interference of the signal on the frequency resource to the D2D transmission.
  • the uplink pilot resource includes a detection reference signal SRS resource or a demodulation reference signal DMRS resource.
  • a base station in a third aspect, includes: a sending unit, configured to send, to the first user equipment, information of an uplink pilot resource allocated to the second user equipment; and a receiving unit, configured to receive the first user equipment And the indication information, where the indication information indicates the interference information of the uplink transmission resource that the second user equipment performs the D2D transmission on the first user equipment and the third user equipment, and the control unit is configured to perform interference coordination according to the indication information. control.
  • control unit is specifically configured to adjust the uplink transmission resource of the second user equipment to be different from the uplink transmission resource used by the D2D transmission.
  • control unit is specifically configured to notify the third user equipment to increase the power of the D2D transmission.
  • the implementation information is: the indication information is used to indicate a signal strength of the second user equipment on the uplink pilot resource; or the indication information is used to request a base station to perform Interference coordination control.
  • the third possible implementation manner is implemented as The uplink pilot resource includes a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • a user equipment configured to include: a receiving unit, configured to receive, by the base station, information about an uplink pilot resource that is allocated by the base station to the second user equipment; Listening, by the frequency resource, the uplink pilot signal sent by the second user equipment; the sending unit, configured to send, to the base station, indication information, if the strength of the uplink pilot signal forms interference to the D2D transmission of the user equipment, the indication information Information indicating interference of the signal of the second user equipment on the uplink pilot resource to the D2D transmission.
  • the uplink pilot resource includes a reference signal SRS resource or a demodulation reference signal DMRS resource.
  • the method for avoiding D2D transmission interference in the embodiment of the present invention by using the base station to receive the indication information sent by the first user equipment according to the obtained signal strength of the second user equipment on the uplink pilot resource, according to The indication information performs interference coordination control, thereby solving the interference of the uplink signal transmission of the user equipment on the D2D transmission.
  • FIG. 1 is a flow chart of a method for avoiding D2D transmission interference according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for processing interference of a D2D user equipment according to an embodiment of the present invention
  • FIG. 6 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is another schematic block diagram of a base station according to an embodiment of the present invention
  • FIG. 9 is another schematic block diagram of a user equipment according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD OFDM Frequency Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • Terminal which can be called User Equipment (UE, User Equipment) Mobile Station (MS, Mobile)
  • UE User Equipment
  • MS Mobile Station
  • a user equipment or the like can communicate with one or more core networks via a Radio Access Network (RAN), and can be a mobile terminal, such as a mobile phone (or "cellular" phone) and has a mobile terminal.
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (e B or e-NodeB, evolved Node B) in LTE. .
  • BTS Base Transceiver Station
  • NodeB base station
  • e B or e-NodeB evolved Node B
  • FIG. 1 is a flow chart of a method for avoiding D2D transmission interference in an embodiment of the present invention.
  • the method of Figure 1 is performed by a base station.
  • 101. Send, to the first user equipment, information about an uplink pilot resource allocated to the second user equipment.
  • 102. Receive indication information sent by the first user equipment.
  • the indication information indicates interference information of the uplink transmission resource that the second user equipment performs D2D transmission on the first user equipment and the third user equipment;
  • the base station may receive the indication information that is sent by the first user equipment according to the obtained signal strength of the second user equipment on the uplink pilot resource, and perform interference coordination control according to the indication information, thereby solving the user setting.
  • the interference coordination control is performed according to the indication information, where the scheduling may be: scheduling the uplink transmission resource of the second user equipment to be different from the uplink transmission resource used by the D2D transmission. That is, through resource scheduling, the uplink transmission resources of the second user equipment and the uplink transmission resources used by the D2D transmission are staggered in the frequency domain.
  • the interference coordination control is performed according to the indication information, and specifically, the third user equipment is notified to increase the power of the D2D transmission.
  • the third user equipment increases the power of the D2D transmission, the signal strength of the D2D received by the second user equipment is enhanced.
  • the uplink transmission signal The impact on D2D transmission will be smaller.
  • the indication information sent by the first user equipment may indicate the signal strength of the second user equipment on the uplink pilot resource, or request the base station to perform interference coordination control.
  • the uplink pilot resource of the second user equipment may be a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • FIG. 2 is an interaction flow diagram of avoiding D2D transmission interference in an embodiment of the present invention.
  • the base station allocates a D2D uplink transmission resource for the first user equipment (UE1) and the third user equipment (UE2).
  • the base station may allocate a part of the uplink transmission resources (including the resources in the frequency domain and the time domain) to the D2D transmission, and the D2D transmission of the first user equipment and the third user equipment is performed in the resource collection.
  • the base station instructs the second user equipment (UE2) to send an uplink pilot signal on the SRS resource.
  • UE2 the second user equipment
  • the SRS resource (including the frequency domain and the time domain resource) may be configured to the second user equipment by using the RRC signaling, indicating that the second user equipment is at a specific time.
  • the frequency domain location transmits the uplink pilot signal using a specific SRS pilot sequence.
  • the base station sends the SRS resource information that is allocated to the second user equipment to the first user equipment.
  • the SRS resource information (including the frequency domain and the time domain resource) may be notified to the first user equipment, so that the first user equipment monitors the first user equipment on the SRS resource.
  • Uplink pilot signal may be notified to the first user equipment, so that the first user equipment monitors the first user equipment on the SRS resource.
  • the first user equipment monitors an uplink pilot signal of the second user equipment on the SRS resource.
  • the first user equipment After receiving the SRS resource information of the second user equipment, the first user equipment monitors the uplink pilot signal of the second user equipment on the SRS resource information.
  • the first user equipment sends the monitored uplink pilot signal strength information of the second user equipment to the base station.
  • the base station sends resource scheduling information to the UE2.
  • the base station may send the resource scheduling information to the second user equipment, and the uplink transmission resource of the second user equipment is avoided by the D2D uplink transmission resource to avoid interference to the D2D uplink transmission.
  • FIG. 3 is another flow chart of an embodiment of the present invention for avoiding D2D transmission interference.
  • Steps 301, 302, 303, and 304 are similar to steps 201, 202, 203, and 204 of FIG. 2, and the present invention will not be described again.
  • the first user equipment sends the indication information to the base station.
  • the first user equipment determines the interference level of the uplink pilot signal to the D2D signal transmitted by the third user equipment to the first user equipment according to the strength of the uplink pilot signal of the second user equipment being monitored on the SRS resource information. If the first user equipment determines that the uplink pilot signal has strong interference to the D2D transmission, the normal communication of the D2D is affected, and the indication information is sent to the base station, where the indication information indicates that the second user equipment is on the uplink pilot resource. The signal interferes with the D2D transmission.
  • the base station notifies the third user equipment to increase the transmission power of the D2D.
  • the method for performing interference coordination control by the base station in addition to scheduling the uplink transmission resource of the second user equipment to avoid the D2D transmission resource, may also notify the third user equipment to increase the D2D transmission power. After the third user equipment increases the D2D transmission power, the strength of the D2D transmission signal received by the first user equipment is enhanced, and the influence of the corresponding uplink transmission signal of the second user equipment on the interference of the D2D transmission is reduced.
  • FIG. 4 is another flow chart of an interaction avoiding D2D transmission interference in an embodiment of the present invention.
  • the base station allocates a D2D uplink transmission resource for the first user equipment (UE1) and the third user equipment (UE2).
  • the base station may allocate a part of the uplink transmission resources (including the resources in the frequency domain and the time domain) to the D2D transmission, and the D2D transmission of the first user equipment and the third user equipment is performed in the resource collection.
  • the base station instructs the second user equipment (UE2) to send an uplink pilot signal on the DMRS resource.
  • UE2 the second user equipment
  • the second user equipment may be configured with the DMRS resource by using the RRC signaling to indicate that the second user equipment adopts the specific DMRS pilot sequence in the specific time-frequency domain location. Send an uplink pilot signal.
  • the base station sends the DMRS resource information that is allocated to the second user equipment to the first user equipment.
  • the eNB After the eNB sends the DMRS resource information to the second user equipment, the DMRS resource information (including the bit) And the information of the sequence is notified to the first user equipment, so that the first user equipment listens to the uplink pilot signal of the first user equipment on the DMRS resource.
  • the first user equipment monitors an uplink pilot signal of the second user equipment on the DMRS resource.
  • the first user equipment After receiving the DMRS resource information of the second user equipment, the first user equipment monitors the uplink pilot signal of the second user equipment on the DMRS resource information.
  • the first user equipment sends the obtained uplink pilot signal strength information of the second user equipment to the base station.
  • the first user equipment monitors the uplink pilot signal strength of the second user equipment, it can determine whether the uplink transmission signal of the second user equipment interferes with the D2D transmission. If it is judged that the uplink transmission signal signal of the second user equipment has little influence on the D2D transmission, it may not be reported. If it is determined that the uplink transmission signal of the second user equipment may interfere with the D2D transmission, the uplink pilot signal strength of the second user equipment may be sent to the base station.
  • the base station sends resource scheduling information to the UE2.
  • the base station may send the resource scheduling information to the second user equipment, and the uplink transmission resource of the second user equipment is avoided by the D2D uplink transmission resource to avoid interference to the D2D uplink transmission.
  • FIG. 5 is a flowchart of a method for D2D user equipment interference processing according to an embodiment of the present invention. The method of Figure 5 is performed by a first user device.
  • the indication information indicates information of interference of the signal of the second user equipment on the uplink pilot resource to the D2D transmission.
  • the base station by monitoring the signal of the second user equipment on the uplink pilot resource and transmitting the indication information to the base station according to the signal strength thereof, the base station performs interference coordination control, thereby solving the interference of the uplink signal transmission of the user equipment on the D2D transmission. .
  • the uplink pilot resource may be a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • FIG. 6 is a schematic block diagram of a base station 600 in accordance with an embodiment of the present invention.
  • the base station 600 can include a sending unit 601, receiving a single Element 602 and control unit 603.
  • the sending unit 601 can send information about the uplink pilot resource allocated to the second user equipment to the first user equipment.
  • the receiving unit 602 can receive the indication information sent by the first user equipment.
  • the indication information indicates the interference information of the uplink transmission resource that the second user equipment performs D2D transmission on the first user equipment and the third user equipment;
  • the control unit 603 can perform interference coordination control according to the indication information.
  • the base station 600 may receive the indication information that is sent by the first user equipment according to the acquired signal strength of the second user equipment on the uplink pilot resource, and perform interference coordination control according to the indication information, and solve the user equipment.
  • the interference of the uplink signal transmission to the D2D transmission may be received.
  • control unit 603 may schedule the uplink transmission resource of the second user equipment to be different from the uplink transmission resource used by the D2D transmission.
  • control unit 603 can notify the third user equipment to increase the power of the D2D transmission.
  • the indication information sent by the first user equipment may be used to indicate the signal strength of the second user equipment on the uplink pilot resource, or request the base station to perform interference coordination control.
  • the uplink pilot resource may be a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • the base station 600 may perform the method performed by the base station in FIG. 2 to FIG. 4, and the present invention is not described herein again.
  • FIG. 7 is a schematic block diagram of a user equipment 700 in accordance with an embodiment of the present invention.
  • the user equipment 700 can include a receiving unit 701, a listening unit 702, and a transmitting unit 703.
  • the receiving unit 701 can receive, by the base station, information about an uplink pilot resource allocated by the base station to the second user equipment.
  • the monitoring unit 702 can monitor the uplink pilot signal sent by the second user equipment on the uplink pilot resource.
  • the transmitting unit 703 may send the indication information to the base station if the strength of the uplink pilot signal interferes with the D2D transmission of the user equipment.
  • the indication information indicates information of interference of the signal of the second user equipment on the uplink pilot resource to the D2D transmission.
  • the user equipment 700 monitors the signal of the second user equipment on the uplink pilot resource and sends the indication information to the base station according to the signal strength thereof, so that the base station performs interference coordination control, and the user equipment is solved.
  • the uplink pilot resource may be a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • the user equipment 700 may perform the method performed by the first user equipment (UE1) of FIG. 2 to FIG. 4 and the method performed by the first user equipment of FIG. 5, and details are not described herein.
  • FIG 8 is a schematic block diagram of a base station 800 in accordance with an embodiment of the present invention.
  • the base station 800 can include a transmitting unit 803, a receiving unit 801, a processor 802, and a memory 804.
  • the sending unit 803 can send information about the uplink pilot resource allocated to the second user equipment to the first user equipment.
  • the receiving unit 801 can receive the indication information sent by the first user equipment.
  • the indication information indicates that the second user equipment performs interference information of the uplink transmission resource of the D2D transmission to the first user equipment and the third user equipment.
  • the processor 802 can perform interference coordination control according to the indication information.
  • the memory 804 can store instructions for causing the processor 802 to perform interference coordination control according to the indication information.
  • the base station 800 may receive the indication information that is sent by the first user equipment according to the obtained signal strength of the second user equipment on the uplink pilot resource, and perform interference coordination control according to the indication information, and solve the user equipment.
  • the interference of the uplink signal transmission to the D2D transmission may be performed by the base station 800 to perform interference coordination control according to the indication information.
  • the processor 802 controls the operation of the base station 800, which may also be referred to as a CPU (Central Processing Unit).
  • Memory 804 can include read only memory and random access memory and provides instructions and data to processor 802.
  • a portion of the memory 804 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the various components of the base station 800 are coupled together by a bus system 805, wherein the bus system 805 may include, in addition to the data bus, Including power bus, control bus and status signal bus.
  • bus system 805 may include, in addition to the data bus, Including power bus, control bus and status signal bus.
  • various buses are labeled as bus system 805 in the figure.
  • Processor 802 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 802 or an instruction in a form of software.
  • the processor 802 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like. Combined with the implementation of the present invention
  • the steps of the method disclosed in the example may be directly implemented by the hardware decoding processor, or by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 804, and the processor 802 reads the information in the memory 804 and combines the hardware to perform the steps of the above method.
  • the processor 802 may schedule the uplink transmission resource of the second user equipment to be different from the uplink transmission resource used by the D2D transmission.
  • the processor 802 can notify the third user equipment to increase the power of the D2D transmission.
  • the indication information sent by the first user equipment may be used to indicate the signal strength of the second user equipment on the uplink pilot resource, or request the base station to perform interference coordination control.
  • the uplink pilot resource may be a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • the base station 800 may perform the method performed by the base station of FIG. 2 to FIG. 4, and the present invention is not described herein again.
  • FIG. 9 is a schematic block diagram of a user equipment 900 in accordance with an embodiment of the present invention.
  • User equipment 900 can include a transmitting unit 903, a receiving unit 901, a processor 902, and a memory 904.
  • the receiving unit 901 can receive, by the base station, information about an uplink pilot resource allocated by the base station to the second user equipment.
  • the processing unit 902 can monitor, by the receiving unit 901, the uplink pilot signal sent by the second user equipment on the uplink pilot resource.
  • the storage unit 904 can store an instruction for the processing unit 902 to monitor the uplink pilot signal sent by the second user equipment on the uplink pilot resource by the accepting unit 901.
  • the transmitting unit 903 may send the indication information to the base station if the strength of the uplink pilot signal interferes with the D2D transmission of the user equipment.
  • the indication information indicates information of interference of the signal of the second user equipment on the uplink pilot resource to the D2D transmission.
  • the user equipment 900 monitors the uplink signal transmission of the user equipment to the D2D by monitoring the signal of the second user equipment on the uplink pilot resource and transmitting the indication information to the base station according to the signal strength thereof. Transmission interference.
  • the processor 902 controls the operation of the user equipment 900, which may also be referred to as a CPU (Central Processing Unit).
  • Memory 904 can include read only memory and random access memory and provides instructions and data to processor 902. A portion of the memory 904 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the various components of the user equipment 900 are coupled together by a bus system 905.
  • the bus system 905 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 905 in the figure.
  • Processor 902 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 902 or an instruction in the form of software.
  • the processor 902 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by the hardware decoding processor, or by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 904, and the processor 902 reads the information in the memory 904 and combines the hardware to perform the steps of the above method.
  • the uplink pilot resource may be a sounding reference signal SRS resource or a demodulation reference signal DMRS resource.
  • the user equipment 900 may perform the method performed by the first user equipment (UE1) of FIG. 2 to FIG. 4 and the method performed by the first user equipment of FIG. 5, and details are not described herein again.
  • the disclosed systems, devices, and methods may It is achieved in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and the like, which can store program codes.

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Abstract

本发明实施例提供了一种避免D2D传输干扰的处理方法、基站和用户设备。该方法包括：向第一用户设备发送分配给第二用户设备的上行导频资源的信息；接收该第一用户设备发送的指示信息，其中，该指示信息指示该第二用户设备对该第一用户设备和第三用户设备执行D2D传输的上行传输资源的干扰信息；根据该指示信息进行干扰协调控制。本发明实施例的用于避免D2D传输干扰的方法，通过使得基站接收第一用户设备根据获取的第二用户设备在上行导频资源上的信号强度发送的指示信息，并根据该指示信息进行干扰协调控制，从而解决了用户设备的上行信号传输对D2D传输的干扰。

Description

避免 D2D传输干扰的处理方法、 用户设备和基站 本申请要求于 2012年 11月 2日提交中国专利局、 申请号为 CN 201210431991. X、 发明名称为 "避免 D2D传输干扰的处理方法、 用户设备和基站" 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 本发明实施例涉及通信领域， 并且更具体地， 涉及一种避免 D2D传输干扰的处理方 法、 用户设备和基站。 背景技术 设备到设备 （Device-to-Device， D2D)通信是一种在系统的控制下， 允许终端之间 通过复用小区资源直接进行通信的新型技术。 D2D在传输信号时一般复用小区的上行链 路资源。 在 D2D传输中， 如果用户设备 D1和用户设备 D2发现彼此距离很近， 就可以 绕开基站， 比如演进型基站（e B或 e-NodeB， evolutional Node B )， 直接建立连接并将 相应的数据发送给对方。 D2D可以占用正常的蜂窝通信所使用的频带资源以节省用户设 备 （UE， User Equipment) 的设备成本， 只需要增加一个在上行频带的接收功能。
由于占用了蜂窝通信的上行频带， D2D传输和正常的蜂窝系统的上行传输会同时存 在， 这就有可能会产生相互之间的干扰。 特别是蜂窝系统的上行传输对于 D2D传输的 干扰， 因为蜂窝系统上行传输功率是根据用户设备距离基站的路径损耗进行调整的， 当 上行用户设备距离基站很远而距离 D2D对很近时， 就会产生对 D2D传输的巨大干扰。 发明内容
本发明实施例提供一种用于避免 D2D传输干扰的方法、 基站和用户设备， 能够解 决用户设备的上行信号传输对 D2D传输的干扰。
第一方面， 提供了一种避免 D2D传输干扰的方法， 该方法包括： 向第一用户设备 发送分配给第二用户设备的上行导频资源的信息； 接收该第一用户设备发送的指示信 息，其中， 该指示信息指示该第二用户设备对该第一用户设备和第三用户设备执行 D2D 传输的上行传输资源的干扰信息； 根据该指示信息进行干扰协调控制。
在第一种可能的实现方式中， 结合第一方面， 根据该指示信息进行干扰协调控制具 体可实现为： 调度使得该第二用户设备的上行传输资源与该 D2D传输所使用的上行传 输资源不同。
在第二种可能的实现方式中， 结合第一方面， 根据该指示信息进行干扰协调控制具 体可实现为： 通知该第三用户设备提高该 D2D传输的功率。
在第三种可能的实现方式中， 结合第一方面， 具体实现为： 该指示信息指示该第二 用户设备在该上行导频资源上的信号强度； 或者该指示信息请求基站进行干扰协调控 制。
在第四种可能的实现方式中， 结合第一方面或第一方面的第一种可能的实现方式至 第一方面的第三种可能的实现方式中任一种可能的实现方式， 具体实现为： 该上行导频 资源包括探测参考信号 SRS资源或解调参考信号 DMRS资源。
第二方面， 提出了一种 D2D用户设备干扰处理的方法， 该方法包括： 接收基站发 送的该基站分配给第二用户设备的上行导频资源的信息； 在该上行导频资源上监听该第 二用户设备发送的上行导频信号；如果该上行导频信号的强度对该 D2D用户设备的 D2D 传输形成干扰， 则向该基站发送指示信息， 该指示信息指示该第二用户设备在该上行导 频资源上的信号对该 D2D传输的干扰的信息。
在第一种可能的实现方式中， 结合第二方面， 具体实现为： 该上行导频资源包括探 测参考信号 SRS资源或解调参考信号 DMRS资源。
第三方面， 提出了一种基站， 该基站包括： 发送单元， 用于向第一用户设备发送分 配给第二用户设备的上行导频资源的信息； 接收单元， 用于接收该第一用户设备发送的 指示信息， 其中， 该指示信息指示该第二用户设备对该第一用户设备和第三用户设备执 行 D2D传输的上行传输资源的干扰信息； 控制单元， 用于根据该指示信息进行干扰协 调控制。
在第一种可能的实现方式中， 结合第三方面， 具体实现为： 该控制单元具体用于调 度使得该第二用户设备的上行传输资源与该 D2D传输所使用的上行传输资源不同。
在第二种可能的实现方式中， 结合第三方面， 具体实现为： 该控制单元具体用于通 知该第三用户设备提高该 D2D传输的功率。
在第三种可能的实现方式中， 结合第三方面， 具体实现为： 该指示信息用于指示该 第二用户设备在该上行导频资源上的信号强度； 或者该指示信息用于请求基站进行干扰 协调控制。 在第四种可能的实现方式中， 结合第三方面或第三方面的第一种可能的实现方式至 第三方面的第三种可能的实现方式中任一种可能的实现方式， 具体实现为： 该上行导频 资源包括探测参考信号 SRS资源或解调参考信号 DMRS资源。
第四方面， 提出了一种用户设备， 该用户设备包括： 接收单元， 用于接收基站发送 的该基站分配给第二用户设备的上行导频资源的信息； 监听单元， 用于在该上行导频资 源上监听该第二用户设备发送的上行导频信号； 发送单元， 用于如果该上行导频信号的 强度对该用户设备的 D2D传输形成干扰， 则向该基站发送指示信息， 该指示信息指示 该第二用户设备在该上行导频资源上的信号对该 D2D传输的干扰的信息。
在第一种可能的实现方式中， 结合第四方面， 具体实现为： 该上行导频资源包括探 测参考信号 SRS资源或解调参考信号 DMRS资源。
基于以上技术方案， 本发明实施例的用于避免 D2D传输干扰的方法， 通过使得基 站接收第一用户设备根据获取的第二用户设备在上行导频资源上的信号强度发送的指 示信息， 并根据该指示信息进行干扰协调控制， 从而解决了用户设备的上行信号传输对 D2D传输的干扰。 附图说明 为了更清楚地说明本发明实施例的技术方案， 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是本发明实施例避免 D2D传输干扰的方法流程图；
图 2是本发明实施例避免 D2D传输干扰的交互流程图；
图 3是是本发明实施例避免 D2D传输干扰的另一交互流程图；
图 4是是本发明实施例避免 D2D传输干扰的另一交互流程图；
图 5是本发明实施例 D2D用户设备干扰处理的方法流程图；
图 6是本发明实施例基站的示意框图；
图 7是本发明实施例用户设备的示意框图；
图 8是本发明实施例基站的另一示意框图； 图 9是本发明实施例用户设备的另一示意框图。 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。
应理解， 本发明实施例的技术方案可以应用于各种通信系统， 例如： 全球移动通讯 (GSM, Global System of Mobile communication)系统、码分多址（CDMA, Code Division Multiple Access)系统、宽带码分多址（WCDMA, Wideband Code Division Multiple Access) 系统、通用分组无线业务（GPRS, General Packet Radio Service ) 长期演进（LTE， Long Term Evolution) 系统、 LTE频分双工 (FDD, Frequency Division Duplex) 系统、 LTE 时分双工（TDD， Time Division Duplex ) 通用移动通信系统（UMTS, Universal Mobile Telecommunication System) 等。
终端（Terminal),可以称之为用户设备（UE， User Equipment ) 移动台（MS， Mobile
Station ) 用户设备等， 可以经无线接入网 （RAN, Radio Access Network) 与一个或多 个核心网进行通信， 可以是移动终端， 如移动电话 （或称为"蜂窝"电话） 和具有移动终 端的计算机， 例如， 可以是便携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装 置， 它们与无线接入网交换语言和 /或数据。
基站， 可以是 GSM或 CDMA中的基站 （BTS， Base Transceiver Station), 也可以 是 WCDMA中的基站 （NodeB), 还可以是 LTE中的演进型基站 （e B或 e-NodeB， evolutional Node B )。
图 1是本发明实施例避免 D2D传输干扰的方法流程图。 图 1的方法由基站执行。
101， 向第一用户设备发送分配给第二用户设备的上行导频资源的信息。 102， 接收 该第一用户设备发送的指示信息。 其中， 该指示信息指示该第二用户设备对第一用户设 备和第三用户设备执行 D2D传输的上行传输资源的干扰信息；
103， 根据该指示信息进行干扰协调控制。
本发明实施例中，基站可接收第一用户设备根据获取的第二用户设备在上行导频资 源上的信号强度发送的指示信息， 并根据该指示信息进行干扰协调控制， 解决了用户设 备的上行信号传输对 D2D传输的干扰。
可选地， 根据指示信息进行干扰协调控制， 具体可以实现为： 调度使得该第二用户 设备的上行传输资源与该 D2D传输所使用的上行传输资源不同。 即通过资源调度， 把 第二用户设备的上行传输资源与 D2D传输所使用的上行传输资源在频域上错开。
可选地， 根据指示信息进行干扰协调控制， 具体还可以实现为： 通知该第三用户设 备提高该 D2D传输的功率。 当第三用户设备提高 D2D传输的功率时， 第二用户设备收 到的 D2D的信号强度会增强， 此时虽然第二用户设备的上行传输的信号强度不会减小， 但该上行传输的信号对 D2D传输的影响就会变小。
可选地， 第一用户设备发送的指示信息， 可以指示所述第二用户设备在所述上行导 频资源上的信号强度， 或者请求基站进行干扰协调控制。
可选地，第二用户设备的上行导频资源，可以是探测参考信号 SRS资源或解调参考 信号 DMRS资源。
图 2是本发明实施例避免 D2D传输干扰的交互流程图。
201， 基站为第一用户设备 (UE1)和第三用户设备 (UE2)分配 D2D上行传输资源。 基站可以划分出一部分上行传输资源（包括频域和时域的资源）给 D2D传输使用， 第一用户设备和第三用户设备的 D2D传输在该资源集合内进行。
202, 基站指示第二用户设备 (UE2)在 SRS资源上发送上行导频信号。
当基站判断第二用户设备可能会对 D2D传输产生较强干扰， 可以通过 RRC信令给 第二用户设备配置 SRS资源 （包括频域和时域的资源）， 指示第二用户设备在特定的时 频域位置采用特定的 SRS导频序列发送上行导频信号。
203 , 基站将分配给第二用户设备的 SRS资源信息发送给第一用户设备。
基站为第二用户设备分配 SRS资源信息之后， 可将该 SRS资源信息 （包括频域和 时域的资源）通知给第一用户设备， 以便第一用户设备在该 SRS资源上监听第一用户设 备的上行导频信号。
204， 第一用户设备在该 SRS资源上监听第二用户设备的上行导频信号。
第一用户设备收到第二用户设备的 SRS资源信息后， 在该 SRS资源信息上监听第 二用户设备的上行导频信号。
205，第一用户设备将监听到的第二用户设备的上行导频信号强度信息发送给基站。 206， 基站向 UE2发送资源调度信息。
基站在收到第一用户设备上报的信息之后， 根据上报的信息， 如果发现该上行导频 信号的强度超过一定的门限， 说明第二用户设备的上行传输对第一用户设备的 D2D传 输产生了较强的干扰。 此时， 基站可向第二用户设备发送资源调度信息， 将第二用户设 备的上行传输资源避开该 D2D上行传输的资源， 以避免对 D2D上行传输的干扰。
图 3是本发明实施例避免 D2D传输干扰的另一交互流程图。
步骤 301、 302、 303和 304与图 2的步骤 201、 202、 203和 204类似， 本发明在此 不再赘述。
305， 第一用户设备向基站发送指示信息。
第一用户设备根据在该 SRS资源信息上监听第二用户设备的上行导频信号的强度， 判断该上行导频信号对第三用户设备向第一用户设备传输的 D2D信号的干扰程度。 如 果第一用户设备判断该上行导频信号对 D2D传输产生较强的干扰， 会影响到 D2D的正 常通信， 可向基站发送指示信息， 该指示信息指示第二用户设备在该上行导频资源上的 信号对该 D2D传输形成信号干扰。
306， 基站通知第三用户设备提高 D2D的传输功率。
基站进行干扰协调控制的方法， 除了调度第二用户设备的上行传输资源避开 D2D 传输资源外， 还可以通知第三用户设备提高 D2D传输功率。 第三用户设备提高 D2D传 输功率后， 第一用户设备接收到的 D2D传输信号的强度就会增强， 相应的第二用户设 备的上行传输信号对 D2D传输的干扰的影响就会减小。
图 4是本发明实施例避免 D2D传输干扰的另一交互流程图。
401， 基站为第一用户设备 (UE1)和第三用户设备 (UE2)分配 D2D上行传输资源。 基站可以划分出一部分上行传输资源（包括频域和时域的资源）给 D2D传输使用， 第一用户设备和第三用户设备的 D2D传输在该资源集合内进行。
402, 基站指示第二用户设备 (UE2)在 DMRS资源上发送上行导频信号。
当基站判断第二用户设备可能会对 D2D传输产生较强干扰， 可以通过 RRC信令给 第二用户设备配置 DMRS 资源， 指示第二用户设备在特定的时频域位置采用特定的 DMRS导频序列发送上行导频信号。
403， 基站将分配给第二用户设备的 DMRS资源信息发送给第一用户设备。
基站为第二用户设备分配 DMRS资源信息之后， 可将该 DMRS资源信息 （包括位 置和序列的信息） 通知给第一用户设备， 以便第一用户设备在该 DMRS 资源上监听第 一用户设备的上行导频信号。
404， 第一用户设备在该 DMRS资源上监听第二用户设备的上行导频信号。
第一用户设备收到第二用户设备的 DMRS资源信息后， 在该 DMRS资源信息上监 听第二用户设备的上行导频信号。
405， 第一用户设备将监听获得的第二用户设备的上行导频信号强度信息发送给基 站。
第一用户设备监听获得第二用户设备的上行导频信号强度后，可以判断第二用户设 备的上行传输信号是否会对 D2D传输形成干扰。 如果判断第二用户设备的上行传输信 号信号对 D2D传输的影响不大， 可不上报。 如果判断第二用户设备的上行传输信号会 对 D2D传输形成干扰， 可向基站发送第二用户设备的上行导频信号强度。
406， 基站向 UE2发送资源调度信息。
基站在收到第一用户设备上报的信息之后， 根据上报的信息， 如果发现该上行导频 信号的强度超过一定的门限， 说明第二用户设备的上行传输对第一用户设备的 D2D传 输产生了较强的干扰。 此时， 基站可向第二用户设备发送资源调度信息， 将第二用户设 备的上行传输资源避开该 D2D上行传输的资源， 以避免对 D2D上行传输的干扰。
图 5是本发明实施例 D2D用户设备干扰处理的方法流程图。 图 5的方法由第一用 户设备执行。
501， 接收基站发送的该基站分配给第二用户设备的上行导频资源的信息。
502， 在该上行导频资源上监听该第二用户设备发送的上行导频信号；
503， 如果该上行导频信号的强度对该 D2D用户设备的 D2D传输形成干扰， 则向 该基站发送指示信息。该指示信息指示该第二用户设备在该上行导频资源上的信号对该 D2D传输的干扰的信息。
本发明实施例中，通过监听第二用户设备在上行导频资源上的信号并根据其信号强 度向基站发送指示信息以便基站进行干扰协调控制，解决了用户设备的上行信号传输对 D2D传输的干扰。
可选地，本发明实施例中，该上行导频资源可以是探测参考信号 SRS资源或解调参 考信号 DMRS资源。
图 6是本发明实施例基站 600的示意框图。 基站 600可包括发送单元 601， 接收单 元 602和控制单元 603。
发送单元 601，可向第一用户设备发送分配给第二用户设备的上行导频资源的信息。 接收单元 602， 可接收该第一用户设备发送的指示信息。 其中， 该指示信息指示该 第二用户设备对第一用户设备和第三用户设备执行 D2D传输的上行传输资源的干扰信 息；
控制单元 603， 可根据该指示信息进行干扰协调控制。
本发明实施例中，基站 600可接收第一用户设备根据获取的第二用户设备在上行导 频资源上的信号强度发送的指示信息， 并根据该指示信息进行干扰协调控制， 解决了用 户设备的上行信号传输对 D2D传输的干扰。
可选地， 作为一个实施例， 控制单元 603可调度使得该第二用户设备的上行传输资 源与该 D2D传输所使用的上行传输资源不同。
可选地， 作为另一个实施例， 控制单元 603可通知该第三用户设备提高该 D2D传 输的功率。
可选地， 可选地， 第一用户设备发送的指示信息， 可以指示所述第二用户设备在所 述上行导频资源上的信号强度， 或者请求基站进行干扰协调控制。
可选地， 该上行导频资源可以是探测参考信号 SRS资源或解调参考信号 DMRS资 源。
本发明实施例中， 基站 600可执行图 2至图 4的基站执行的方法， 本发明在此不再 赘述。
图 7是本发明实施例用户设备 700的示意框图。用户设备 700可包括接收单元 701， 监听单元 702和发送单元 703。
接收单元 701， 可接收基站发送的该基站分配给第二用户设备的上行导频资源的信 息。
监听单元 702， 可在该上行导频资源上监听该第二用户设备发送的上行导频信号。 发送单元 703， 如果该上行导频信号的强度对该用户设备的 D2D传输形成干扰， 则 可向该基站发送指示信息。该指示信息指示该第二用户设备在该上行导频资源上的信号 对该 D2D传输的干扰的信息。
本发明实施例中，用户设备 700通过监听第二用户设备在上行导频资源上的信号并 根据其信号强度向基站发送指示信息以便基站进行干扰协调控制，解决了用户设备的上 行信号传输对 D2D传输的干扰。
可选地，本发明实施例中，该上行导频资源可以是探测参考信号 SRS资源或解调参 考信号 DMRS资源。
本发明实施例中， 用户设备 700可执行图 2至图 4的第一用户设备 （UE1 ) 执行的 方法和图 5的第一用户设备执行的方法， 本发明在此不再赘述。
图 8是本发明实施例基站 800的示意框图。 基站 800可包括发送单元 803， 接收单 元 801、 处理器 802和存储器 804。
发送单元 803，可向第一用户设备发送分配给第二用户设备的上行导频资源的信息。 接收单元 801， 可接收该第一用户设备发送的指示信息。 其中， 该指示信息指示该 第二用户设备对第一用户设备和第三用户设备执行 D2D传输的上行传输资源的干扰信 息。
处理器 802， 可根据该指示信息进行干扰协调控制。
存储器 804， 可存储使得处理器 802根据该指示信息进行干扰协调控制的指令。 本发明实施例中，基站 800可接收第一用户设备根据获取的第二用户设备在上行导 频资源上的信号强度发送的指示信息， 并根据该指示信息进行干扰协调控制， 解决了用 户设备的上行信号传输对 D2D传输的干扰。
处理器 802控制基站 800的操作， 处理器 802还可以称为 CPU (Central Processing Unit, 中央处理单元）。存储器 804可以包括只读存储器和随机存取存储器， 并向处理器 802 提供指令和数据。 存储器 804 的一部分还可以包括非易失性随机存取存储器 (NVRAM) 0具体的应用中， 基站 800的各个组件通过总线系统 805耦合在一起， 其中 总线系统 805除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。 但是为了清楚说明起见， 在图中将各种总线都标为总线系统 805。
上述本发明实施例揭示的方法可以应用于处理器 802中， 或者由处理器 802实现。 处理器 802可能是一种集成电路芯片， 具有信号的处理能力。 在实现过程中， 上述方法 的各步骤可以通过处理器 802中的硬件的集成逻辑电路或者软件形式的指令完成。上述 的处理器 802可以是通用处理器、 数字信号处理器（DSP)、 专用集成电路（ASIC)、 现 成可编程门阵列 （FPGA) 或者其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分 立硬件组件。 可以实现或者执行本发明实施例中的公开的各方法、 步骤及逻辑框图。 通 用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施 例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成， 或者用译码处理器中 的硬件及软件模块组合执行完成。 软件模块可以位于随机存储器， 闪存、 只读存储器， 可编程只读存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该 存储介质位于存储器 804， 处理器 802读取存储器 804中的信息， 结合其硬件完成上述 方法的步骤。
可选地， 作为一个实施例， 处理器 802可调度使得该第二用户设备的上行传输资源 与该 D2D传输所使用的上行传输资源不同。
可选地， 作为另一个实施例， 处理器 802可通知该第三用户设备提高该 D2D传输 的功率。
可选地， 可选地， 第一用户设备发送的指示信息， 可以指示所述第二用户设备在所 述上行导频资源上的信号强度， 或者请求基站进行干扰协调控制。
可选地， 该上行导频资源可以是探测参考信号 SRS资源或解调参考信号 DMRS资 源。
本发明实施例中， 基站 800可执行图 2至图 4的基站执行的方法， 本发明在此不再 赘述。
图 9是本发明实施例用户设备 900的示意框图。用户设备 900可包括发送单元 903， 接收单元 901、 处理器 902和存储器 904。
接收单元 901， 可接收基站发送的该基站分配给第二用户设备的上行导频资源的信 息。
处理单元 902， 可通过接受单元 901在该上行导频资源上监听该第二用户设备发送 的上行导频信号。
存储单元 904， 可存储使得处理单元 902通过接受单元 901在该上行导频资源上监 听该第二用户设备发送的上行导频信号的指令。
发送单元 903， 如果该上行导频信号的强度对该用户设备的 D2D传输形成干扰， 则 可向该基站发送指示信息。该指示信息指示该第二用户设备在该上行导频资源上的信号 对该 D2D传输的干扰的信息。
本发明实施例中，用户设备 900通过监听第二用户设备在上行导频资源上的信号并 根据其信号强度向基站发送指示信息以便基站进行干扰协调控制，解决了用户设备的上 行信号传输对 D2D传输的干扰。 处理器 902 控制用户设备 900 的操作， 处理器 902 还可以称为 CPU ( Central Processing Unit, 中央处理单元）。 存储器 904可以包括只读存储器和随机存取存储器， 并向处理器 902提供指令和数据。存储器 904的一部分还可以包括非易失性随机存取存 储器（NVRAM)。具体的应用中， 用户设备 900的各个组件通过总线系统 905耦合在一 起， 其中总线系统 905除包括数据总线之外， 还可以包括电源总线、 控制总线和状态信 号总线等。 但是为了清楚说明起见， 在图中将各种总线都标为总线系统 905。
上述本发明实施例揭示的方法可以应用于处理器 902中， 或者由处理器 902实现。 处理器 902可能是一种集成电路芯片， 具有信号的处理能力。 在实现过程中， 上述方法 的各步骤可以通过处理器 902中的硬件的集成逻辑电路或者软件形式的指令完成。上述 的处理器 902可以是通用处理器、 数字信号处理器（DSP)、 专用集成电路（ASIC)、 现 成可编程门阵列 （FPGA) 或者其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分 立硬件组件。 可以实现或者执行本发明实施例中的公开的各方法、 步骤及逻辑框图。 通 用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施 例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成， 或者用译码处理器中 的硬件及软件模块组合执行完成。 软件模块可以位于随机存储器， 闪存、 只读存储器， 可编程只读存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该 存储介质位于存储器 904， 处理器 902读取存储器 904中的信息， 结合其硬件完成上述 方法的步骤。
可选地，本发明实施例中，该上行导频资源可以是探测参考信号 SRS资源或解调参 考信号 DMRS资源。
本发明实施例中， 用户设备 900可执行图 2至图 4的第一用户设备 （UE1 ) 执行的 方法和图 5的第一用户设备执行的方法， 本发明在此不再赘述。
本领域普通技术人员可以意识到， 结合本文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、 或者计算机软件和电子硬件的结合来实现。 这些功能究 竟以硬件还是软件方式来执行， 取决于技术方案的特定应用和设计约束条件。 专业技术 人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认 为超出本发明的范围。
所属领域的技术人员可以清楚地了解到， 为描述的方便和简洁， 上述描述的系统、 装置和单元的具体工作过程， 可以参考前述方法实施例中的对应过程， 在此不再赘述。
在本申请所提供的几个实施例中， 应该理解到， 所揭露的系统、 装置和方法， 可以 通过其它的方式实现。 例如， 以上所描述的装置实施例仅仅是示意性的， 例如， 所述单 元的划分， 仅仅为一种逻辑功能划分， 实际实现时可以有另外的划分方式， 例如多个单 元或组件可以结合或者可以集成到另一个系统， 或一些特征可以忽略， 或不执行。 另一 点， 所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口， 装置 或单元的间接耦合或通信连接， 可以是电性， 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的， 作为单元显示 的部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也可以分布到多个 网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的 目的。
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理单元中， 也可以是 各个单元单独物理存在， 也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存 储在一个计算机可读取存储介质中。 基于这样的理解， 本发明的技术方案本质上或者说 对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来， 该 计算机软件产品存储在一个存储介质中， 包括若干指令用以使得一台计算机设备（可以 是个人计算机， 服务器， 或者网络设备等）执行本发明各个实施例所述方法的全部或部 分步骤。 而前述的存储介质包括： U 盘、 移动硬盘、 只读存储器 （ROM, Read-Only Memory ) 随机存取存储器 （RAM, Random Access Memory ) 磁碟或者光盘等各种可 以存储程序代码的介质。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限于此， 任何 熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想到变化或替换， 都应 涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应所述以权利要求的保护范围 为准。

Claims

权利要求
1、 一种避免 D2D传输干扰的处理方法， 其特征在于， 包括：
向第一用户设备发送分配给第二用户设备的上行导频资源的信息；
接收所述第一用户设备发送的指示信息， 其中， 所述指示信息指示所述第二用户设 备对所述第一用户设备和第三用户设备执行 D2D传输的上行传输资源的干扰信息； 根据所述指示信息进行干扰协调控制。
2、 如权利要求 1所述的方法， 其特征在于， 所述根据所述指示信息进行干扰协调 控制包括： 调度使得所述第二用户设备的上行传输资源与所述 D2D传输所使用的上行 传输资源不同。
3、 如权利要求 1所述的方法， 其特征在于， 所述根据所述指示信息进行干扰协调 控制包括： 通知所述第三用户设备提高所述 D2D传输的功率。
4、 如权利要求 1所述的方法， 其特征在于，
所述指示信息用于指示所述第二用户设备在所述上行导频资源上的信号强度； 或者 所述指示信息用于请求基站进行干扰协调控制。
5、 如权利要求 1至 4任一项所述的方法， 其特征在于， 所述上行导频资源包括探 测参考信号 SRS资源或解调参考信号 DMRS资源。
6、 一种 D2D用户设备干扰处理的方法， 其特征在于， 包括：
接收基站发送的所述基站分配给第二用户设备的上行导频资源的信息；
在所述上行导频资源上监听所述第二用户设备发送的上行导频信号；
如果所述上行导频信号的强度对所述 D2D用户设备的 D2D传输形成干扰， 则向所 述基站发送指示信息， 所述指示信息指示所述第二用户设备对所述 D2D传输的干扰信 息。
7、 如权利要求 6所述的方法， 其特征在于， 所述上行导频资源包括探测参考信号 SRS资源或解调参考信号 DMRS资源。
8、 一种基站， 其特征在于， 包括：
发送单元， 用于向第一用户设备发送分配给第二用户设备的上行导频资源的信息； 接收单元， 用于接收所述第一用户设备发送的指示信息， 其中， 所述指示信息指示 所述第二用户设备对所述第一用户设备和第三用户设备执行 D2D传输的上行传输资源 的干扰信息；
控制单元， 用于根据所述指示信息进行干扰协调控制。
9、 如权利要求 8所述的基站， 其特征在于， 所述控制单元具体用于调度使得所述 第二用户设备的上行传输资源与所述 D2D传输所使用的上行传输资源不同。
10、 如权利要求 8所述的基站， 其特征在于， 所述控制单元具体用于通知所述第三 用户设备提高所述 D2D传输的功率。
11、 如权利要求 8所述的基站， 其特征在于，
所述指示信息用于指示所述第二用户设备在所述上行导频资源上的信号强度； 或者 所述指示信息用于请求基站进行干扰协调控制。
12、 如权利要求 8至 11任一项所述的基站， 其特征在于， 所述上行导频资源包括 探测参考信号 SRS资源或解调参考信号 DMRS资源。
13、 一种用户设备， 其特征在于， 包括：
接收单元，用于接收基站发送的所述基站分配给第二用户设备的上行导频资源的信 息；
监听单元， 用于在所述上行导频资源上监听所述第二用户设备发送的上行导频信 号；
发送单元， 用于如果所述上行导频信号的强度对所述用户设备的 D2D传输形成干 扰， 则向所述基站发送指示信息， 所述指示信息指示所述第二用户设备对所述 D2D传 输的干扰信息。
14、 如权利要求 13所述的用户设备， 其特征在于， 所述上行导频资源包括探测参 考信号 SRS资源或解调参考信号 DMRS资源。
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