WO2016041415A1 - 一种发现信号的传输方法、小区发现的方法及装置 - Google Patents

一种发现信号的传输方法、小区发现的方法及装置 Download PDF

Info

Publication number
WO2016041415A1
WO2016041415A1 PCT/CN2015/085578 CN2015085578W WO2016041415A1 WO 2016041415 A1 WO2016041415 A1 WO 2016041415A1 CN 2015085578 W CN2015085578 W CN 2015085578W WO 2016041415 A1 WO2016041415 A1 WO 2016041415A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
discovery signal
unlicensed
idle state
band
Prior art date
Application number
PCT/CN2015/085578
Other languages
English (en)
French (fr)
Inventor
徐伟杰
潘学明
沈祖康
Original Assignee
电信科学技术研究院
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 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to JP2017507993A priority Critical patent/JP6437094B2/ja
Priority to US15/327,622 priority patent/US10098058B2/en
Priority to EP15842646.0A priority patent/EP3171642B1/en
Priority to KR1020177007221A priority patent/KR101913051B1/ko
Publication of WO2016041415A1 publication Critical patent/WO2016041415A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method for transmitting a discovery signal, a method and a device for cell discovery.
  • a base station uses a single antenna or multiple antennas to implement wireless signal coverage for a specific area. These specific areas are called cells, and the concept of a cell is often referred to as providing a service for a user terminal in this specific coverage area.
  • Logical entities including base station software and hardware subsystems. Deploying a small cell not only extends the coverage of the macro cell but also improves the throughput in a specific area.
  • the more small cells are deployed on the network the more users can be served by the small cell, and the performance gain brought by the small cell is enjoyed, so that the overall throughput of the network is greatly improved. It can be expected that in an actual network, it is likely that a large number of small cells are densely deployed in a geographical area where business demand is concentrated.
  • multiple small cells may use independent cell identifiers (IDs), or multiple neighboring small cells and/or transmission points (TPs) (described below as small cell/TP) share the same.
  • Cell ID The service load of a single small cell/TP fluctuates greatly in different time periods because the number of user equipments (UEs) served by a single small cell/TP is small.
  • the small cell/TP technology can be used to enable or disable the small cell/TP according to the actual service condition when the small cell/TP has no service transmission.
  • the small cell/TP that has been shut down can be opened when the UE has a service transmission.
  • the small cell/TP periodically transmits a discovery signal.
  • cellular communication networks use licensed spectrum resources for network deployment and service transmission. That is, the small cell/TP periodically transmits a discovery signal on the licensed spectrum resource.
  • the spectrum resources become more and more tense, and there may be a problem that the spectrum resources cannot be allocated for the discovery signal or the discovery signal is transmitted, resulting in strong interference.
  • the purpose of the present disclosure is to provide a method for transmitting a discovery signal, a method and a device for cell discovery, to solve the problem caused by the shortage of licensed spectrum resources.
  • a method for transmitting a discovery signal comprising:
  • the discovery signal is transmitted on the channel in the idle state in the unlicensed band during the discovery signal transmission period of the current period;
  • the discovery signal is not transmitted on the channel that is not in the idle state in the unlicensed band during the current period.
  • the determining whether the channel in the unlicensed frequency band is an idle state includes:
  • determining whether the channel in the unlicensed frequency band is an idle state includes:
  • Whether the channel in the unlicensed band is in an idle state is determined according to the received power on the channel in the unlicensed band.
  • determining, according to the received power on the channel in the unlicensed frequency band, whether the channel in the unlicensed frequency band is in an idle state includes:
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-LTE signal on the channel in the unlicensed band with the second threshold; if the receiving power of the non-LTE signal is higher than the second a threshold value, where the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal on the channel in the unlicensed band with the third threshold; if the received power of the LTE signal is higher than the third threshold a value, the channel in the unlicensed band is in an idle state; otherwise, the channel in the unlicensed band is in a non-idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-local carrier signal on the channel in the unlicensed band with the fourth threshold; if the received power of the non-local carrier signal Above the fourth threshold, the channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal of the non-operator on the channel in the unlicensed band with the fifth threshold; if the LTE is not the carrier The received power of the signal is higher than the fifth threshold, and the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state.
  • the method further includes:
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band.
  • the sending the discovery signal indication information includes:
  • the channel in the licensed band transmits the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the transmitting the discovery signal indication information includes:
  • the discovery signal indication information is transmitted in a first available downlink subframe of a discovery signal transmission period of a current period.
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel of at least one frequency point of the unlicensed frequency band, or the discovery signal, based on the foregoing embodiment of any of the discovery signal indication information.
  • the indication information is used to indicate whether at least one cell has a discovery signal transmission on a channel in the unlicensed frequency band.
  • a method for cell discovery comprising:
  • the receiving the discovery signal on the channel in the unlicensed frequency band includes:
  • the discovery signal indication information being used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band
  • the discovery signal indication information indicates discovery signal transmission on a channel in the unlicensed frequency band
  • the discovery signal is received on a channel in the unlicensed frequency band.
  • the receiving the discovery signal indication information includes:
  • the channel in the licensed band receives the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the receiving the discovery signal indication information includes:
  • the discovery signal indication information is received in a first available downlink subframe of a discovery signal transmission period of a current period.
  • the receiving the discovery signal on the channel in the unlicensed frequency band includes:
  • the discovery signal indication information indicates at least one frequency point in the unlicensed frequency band Whether there is a discovery signal transmission on the channel; or a discovery signal transmitted on a channel in which the cell with the discovery signal transmission indicated by the discovery signal indication information receives the unlicensed frequency band, the discovery signal indication information is used to indicate at least one cell Whether there is a discovery signal transmission on the channel in the unlicensed frequency band.
  • the receiving the discovery signal on the channel in the unlicensed frequency band includes:
  • the discovery signal is blindly detected on a channel in the unlicensed band at a known transmission time of the discovery signal.
  • the embodiment of the present disclosure further provides a discovery signal transmission apparatus, including:
  • a channel state determining module configured to determine whether a channel in the unlicensed band is in an idle state
  • the discovery signal transmission module is configured to: if the channel in the unlicensed frequency band is in an idle state, send a discovery signal on the idle state channel in the unlicensed frequency band during the discovery signal transmission period of the current period; if the channel in the unlicensed frequency band Not in the idle state, during the current period, the discovery signal is not transmitted on the channel that is not in the idle state in the unlicensed band.
  • the channel state determining module is specifically configured to:
  • the channel state determining module is specifically configured to:
  • Whether the channel in the unlicensed band is in an idle state is determined according to the received power on the channel in the unlicensed band.
  • the channel state determining module is specifically configured to:
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the total received power on the channel in the unlicensed band with the first threshold; if the total received power is higher than the first threshold, The channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-LTE signal on the channel in the unlicensed band with the second threshold; if the receiving power of the non-LTE signal is higher than the second a threshold value, where the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal on the channel in the unlicensed band with the third threshold; if the received power of the LTE signal is higher than the third threshold a value, the channel in the unlicensed frequency band is in an idle state, otherwise, the non-granting The channel in the right band is not idle; or,
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-local carrier signal on the channel in the unlicensed band with the fourth threshold; if the received power of the non-local carrier signal Above the fourth threshold, the channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal of the non-operator on the channel in the unlicensed band with the fifth threshold; if the LTE is not the carrier The received power of the signal is higher than the fifth threshold, and the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state.
  • the device further includes an indication information sending module,
  • the indication information sending module is configured to send the discovery signal indication information, where the discovery signal indication information is used to indicate whether a discovery signal transmission is on a channel in the unlicensed frequency band.
  • the indication information sending module is specifically configured to:
  • the discovery signal indication information is transmitted through a downlink control information (DCI) on a channel in the licensed frequency band.
  • DCI downlink control information
  • the indication information sending module is specifically configured to:
  • the discovery signal indication information is transmitted in a first available downlink subframe of a discovery signal transmission period of a current period.
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel of at least one of the unlicensed frequency bands;
  • the discovery signal indication information is used to indicate whether at least one cell has a discovery signal transmission on a channel in the unlicensed frequency band.
  • an access network device including:
  • the processor is used to read the program from memory and perform the following process:
  • the discovery signal is sent by the transceiver on the idle state channel in the unlicensed band; if not The channel in the right frequency band is not in an idle state, and the discovery signal is not transmitted on the channel that is not in the idle state in the unlicensed frequency band by the transceiver in the current period;
  • a transceiver for receiving and transmitting data under the control of a processor.
  • the processor reads the program from the memory and performs the following process:
  • the processor reads the program from the memory and performs the following process:
  • Whether the channel in the unlicensed band is in an idle state is determined according to the received power on the channel in the unlicensed band.
  • the processor reads the program from the memory and performs the following process:
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the total received power on the channel in the unlicensed band with the first threshold; if the total received power is higher than the first threshold, The channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-LTE signal on the channel in the unlicensed band with the second threshold; if the receiving power of the non-LTE signal is higher than the second a threshold value, where the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal on the channel in the unlicensed band with the third threshold; if the received power of the LTE signal is higher than the third threshold a value, the channel in the unlicensed band is in an idle state; otherwise, the channel in the unlicensed band is in a non-idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-local carrier signal on the channel in the unlicensed band with the fourth threshold; if the received power of the non-local carrier signal Above the fourth threshold, the channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-operator LTE signal on the channel in the unlicensed band with the fifth threshold; The received power of the LTE signal of the operator is higher than the fifth threshold, and the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state.
  • the processor reads the program from the memory and performs the following process:
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band.
  • the processor reads the program from the memory and performs the following process:
  • the channel in the licensed band transmits the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the processor reads the program from the memory and performs the following process:
  • the discovery signal indication information is transmitted in the first available downlink subframe of the discovery signal transmission period of the current period.
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel of at least one of the unlicensed frequency bands; or the discovery signal indication information is used to indicate that at least one cell is in the Whether there is a discovery signal transmission on the channel in the unlicensed band.
  • the embodiment of the present disclosure further provides a cell discovery apparatus, including:
  • a discovery signal receiving module configured to receive a discovery signal on a channel in an unlicensed frequency band, where the discovery signal is sent after the base station determines that the channel in the unlicensed frequency band is in an idle state;
  • a cell discovery module configured to discover a cell of the base station according to the discovery signal.
  • the discovery signal receiving module is specifically configured to:
  • the discovery signal indication information being used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band
  • the discovery signal indication information indicates discovery signal transmission on a channel in the unlicensed frequency band, receiving a discovery signal on a channel in the unlicensed frequency band.
  • the discovery signal receiving module is specifically configured to:
  • the channel in the licensed band receives the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the discovery signal receiving module is specific Used for:
  • the discovery signal indication information is received in the first available downlink subframe of the discovery signal transmission period of the current period.
  • the discovery signal receiving module is specifically configured to:
  • the discovery signal indication information indicates at least one frequency point in the unlicensed frequency band Whether there is a discovery signal transmission on the channel;
  • the discovery signal indication information is used to indicate whether at least one cell is on a channel in the unlicensed frequency band.
  • the discovery signal receiving module is specifically configured to:
  • the discovery signal is blindly detected on a channel in the unlicensed band at a known transmission time of the discovery signal.
  • the discovery signal can be sent on the unlicensed frequency band, thereby avoiding the shortage of the licensed frequency band resources, resulting in the problem that the spectrum resources cannot be allocated for the discovery signal or the discovery signal is transmitted to cause strong interference.
  • the embodiment of the present disclosure further provides a UE, including:
  • the processor reads the program from memory and performs the following process:
  • the processor reads the program from the memory and performs the following process:
  • the discovery signal indication information being used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band
  • the discovery signal indication information indicates discovery signal transmission on a channel in the unlicensed frequency band, receiving a discovery signal on a channel in the unlicensed frequency band.
  • the processor reads the program from the memory and performs the following process:
  • the channel in the licensed band receives the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the processor reads the program from the memory and performs the following process:
  • the discovery signal indication information is received in the first available downlink subframe of the discovery signal transmission period of the current period.
  • the processor reads the program from the memory and performs the following process:
  • the discovery signal indication information indicates at least one frequency point in the unlicensed frequency band Whether there is a discovery signal transmission on the channel;
  • the processor reads the program from the memory and performs the following process:
  • the discovery signal is blindly detected on a channel in the unlicensed band at a known transmission time of the discovery signal.
  • the technical solution provided by the embodiment of the present disclosure can transmit the discovery signal on the unlicensed frequency band, thereby avoiding the shortage of the licensed frequency band resource, resulting in the problem that the spectrum resource cannot be allocated for the discovery signal or the discovery signal is transmitted to cause strong interference.
  • FIG. 1 is a flowchart of a discovery signal transmission method provided by an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a cell discovery method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a discovery signal transmission apparatus provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a cell discovery apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • Existing spectrum resources can be divided into licensed spectrum resources (also known as licensed bands) and unlicensed spectrum resources (also known as unlicensed bands).
  • the licensed frequency band is a well-defined dedicated spectrum resource, and the interference is basically predictable.
  • the unlicensed band does not have a specific application system, and can be a variety of Line communication systems use shared unlicensed bands by preempting resources.
  • wireless communication systems using unlicensed bands include Bluetooth, Wireless Hi-Fi (WiFi), and the like.
  • the technical solution provided by the embodiment of the present disclosure can transmit the discovery signal on the unlicensed frequency band, thereby avoiding the shortage of the licensed frequency band resource, resulting in the problem that the spectrum resource cannot be allocated for the discovery signal or the discovery signal is transmitted to cause strong interference.
  • the method for transmitting the discovery signal provided by the embodiment of the present disclosure is as shown in FIG. 1 , and specifically includes the following operations:
  • Step 100 Determine whether the channel in the unlicensed frequency band is in an idle state.
  • the unlicensed band refers to a frequency band such as 2.4 GHz or 5 GHz that can be used without being authorized by the radio spectrum management department.
  • Step 110 If the channel in the unlicensed frequency band is in an idle state, the discovery signal is sent on the idle state channel in the unlicensed frequency band during the discovery signal transmission period of the current period.
  • the discovery signal may be a discovery signal specified by the Third Generation Partnership Project (3GPP) Release 12, ie, Primary Synchronization Signal (PSS)/Secondary Synchronization Signal (SSS)/Cell Specific Reference Signal (CRS). And a network configurable channel quality information reference signal (CSI-RS); or a newly designed discovery signal.
  • the newly designed discovery signal has at least some or all functions that provide UE group time-frequency synchronization, cell and/or transmission point detection/RRM measurement, and a newly designed discovery signal different from the R12 discovery signal.
  • Step 120 If the channel in the unlicensed band is not in an idle state, in the current period, the discovery signal is not sent on the channel that is not in the unlicensed band.
  • the discovery signal transmission method provided by the embodiments of the present disclosure can not only solve the problem caused by the shortage of licensed spectrum resources. Since the channel of the unlicensed band is first confirmed to be idle, only the idle state is used to transmit the discovery signal on the channel of the unlicensed band, which can avoid interference to other communication systems working on the channel of the unlicensed band.
  • small cell/TP For devices with multi-channel simultaneous detection capabilities, such as macro base stations, small cell/TP. It is possible to simultaneously determine whether multiple channels of the unlicensed band are idle, if at least one channel is empty In the idle state, the discovery signal is transmitted on all or part of the channel in the idle state; if no channel is in the idle state, the discovery signal is not transmitted on the unlicensed band.
  • devices with multi-channel simultaneous detection capability can determine whether one channel in the unlicensed frequency band is in an idle state, and if it is in an idle state, send a discovery signal on the channel. Otherwise, it is continued to judge whether another channel of the unlicensed band is in an idle state, and so on, until there is no channel on the channel in which the idle state is found or the unlicensed band is available.
  • the specific ones of the unlicensed frequency bands may be determined according to requirements or pre-agreed, and the disclosure is not limited. If the at least two channels in the unlicensed frequency band are judged, the order of the judgment may be random, or may be in the channel order, which is not limited in this disclosure.
  • the channel in the unlicensed frequency band may be specifically measured within a predetermined time period before the discovery signal transmission period of the current period; and whether the channel in the unlicensed frequency band is determined according to the measurement result is Idle state.
  • the period refers to the transmission period of the discovery signal.
  • it may be a discovery signal transmission period specified by 3GPP Release 12: 40 ms, 80 ms, 160 ms, and the like.
  • the end time of the predetermined time period may be the start time of the discovery signal transmission period of the current period, or may be earlier than the start time of the discovery signal transmission period of the current period.
  • the time interval from the start time of the predetermined time period to the start time of the discovery signal transmission period of the current period is a size of a distributed interframe space (DIFS) in the existing WiFi system.
  • DIFS distributed interframe space
  • the measurement may be continuously performed within the predetermined period of time described above, or may be measured discontinuously at least once in the predetermined period of time described above.
  • step 100 when the foregoing step 100 is performed, specifically, according to the received power on the channel in the unlicensed frequency band, it is determined whether the channel in the unlicensed frequency band is in an idle state.
  • the received power on the channel in the unlicensed frequency band refers to the received power on a single channel, whether it is determined whether at least two channels are in an idle state or whether a single channel is in an idle state.
  • Implementation manner 1 By comparing the total received power on the channel in the unlicensed frequency band with the first threshold a value, determining whether the channel in the unlicensed band is in an idle state; if the total received power is higher than the first threshold, the channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is idle status.
  • the total received power on the channel in the unlicensed band refers to the non-authorization within the predetermined time period.
  • each measurement result indicates that the channel is idle, it is determined that the channel is idle; if at least one measurement result indicates that the channel is not idle, it is determined that the channel is not in an idle state.
  • the second method determines whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-LTE signal on the channel in the unlicensed band with the second threshold; if the receiving power of the non-LTE signal is higher than the first The second threshold value, the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state.
  • the LTE signal refers to a signal sent by the LTE system.
  • the non-LTE signal refers to a signal transmitted by a communication system other than the LTE system on a channel in the unlicensed frequency band.
  • the received power of the non-LTE signal on the channel in the unlicensed band refers to the predetermined period of time, The total received power of the non-LTE signal on the channel in the unlicensed band, or the average received power of the non-LTE signal, or the measured maximum received power of the non-LTE signal, or the received power of the non-LTE signal measured at any one time.
  • the predetermined time period if each measurement result indicates that the channel is idle, it is determined that the channel is idle; if at least one measurement result indicates that the channel is not idle, it is determined that the channel is not in an idle state.
  • the received power of the LTE signal on the channel in the unlicensed frequency band is measured according to the information of the LTE signal such as the LTE cell ID, and the received power of the LTE signal is subtracted from the total received power of the channel in the unlicensed frequency band.
  • Received power of non-LTE signals is measured according to the information of the LTE signal such as the LTE cell ID, the LTE signal is obtained, and then received from the channel in the unlicensed frequency band. The LTE signal is subtracted from the total signal to obtain a non-LTE signal, and then the received power of the non-LTE signal is measured.
  • the information of the LTE signal may be obtained through search detection, or may be obtained by inter-base station transmission (for example, by X2 receiving transmission), or may be an LTE cell ID of the neighboring/neighboring base station preset by the network planning information. And so on.
  • the base station performs channel estimation and/or data detection and decoding on the received signal according to the obtained information such as the cell ID, and combines the result of the channel estimation to reconstruct the LTE signal.
  • the process of reconstructing the LTE signal is, for example, generating an original pilot sequence according to the LTE cell ID and/or generating data symbols according to the process specified by the existing 36.212 protocol according to the decoded data, and estimating the original pilot sequence or the data symbol and the channel.
  • the channel factor H is multiplied to obtain a reconstructed LTE signal.
  • This implementation mode 2 is applicable to a scenario where a single carrier uses an unlicensed band. If the received power of the non-LTE signal is higher than the second threshold, it is considered that a signal of a communication system (such as WiFi) other than the LTE system exists on the channel of the unlicensed frequency band, and the discovery signal is not sent to avoid interference; Otherwise, it is considered that there is no communication system other than the LTE system on the channel of the above unlicensed frequency band, and the discovery signal is transmitted.
  • a communication system such as WiFi
  • the third method is to compare whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal on the channel in the unlicensed band with the third threshold; if the receiving power of the LTE signal is higher than the third door Limit, the channel in the unlicensed band is idle, otherwise the channel in the unlicensed band is not idle.
  • the received power of the LTE signal on the channel in the unlicensed band refers to the non-period within the predetermined time period.
  • each measurement result indicates that the channel is idle, it is determined that the channel is idle; if at least one measurement result indicates that the channel is not idle, it is determined that the channel is not in an idle state.
  • the received power of the LTE signal on the unlicensed frequency band is measured according to the information of the LTE signal such as the LTE cell ID.
  • the information of the LTE signal may be obtained through search detection, or may be obtained by inter-base station transmission (for example, by X2 receiving transmission), or may be an LTE cell ID of the neighboring/neighboring base station preset by the network planning information. And so on.
  • This implementation manner 3 is applicable to a scenario where a single carrier uses an unlicensed band. If the received power of the LTE signal is higher than the third threshold, the channel of the unlicensed band is considered to be occupied by the LTE system, and the discovery signal is sent; otherwise, the channel of the unlicensed band is considered to be occupied by the communication system other than the LTE system. The discovery signal is not sent.
  • the fourth method is to determine whether the channel in the unlicensed band is idle by comparing the received power of the non-local carrier signal on the channel in the unlicensed band with the fourth threshold; if the signal is not received by the carrier The power is higher than the fourth threshold, and the channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state.
  • the non-operator signal refers to a signal other than the LTE signal of the operator.
  • the received power of the non-local carrier signal refers to the unlicensed frequency band in the predetermined time period.
  • the total received power of the non-operator signal on the channel, or the average received power of the non-operator signal, or the measured maximum received power of the non-operator signal, or the received power of the non-local carrier signal measured at any one time.
  • each measurement result indicates that the channel is idle, it is determined that the channel is idle; if at least one measurement result indicates that the channel is not idle, it is determined that the channel is not in an idle state.
  • the received power of the non-operator signal on the unlicensed frequency band is measured according to the information of the LTE signal of the operator, such as the LTE cell ID of the operator, and further, the total received power of the channel in the unlicensed frequency band is used.
  • the received power of the carrier's LTE signal is subtracted, and the received power of the non-operator signal is obtained.
  • the LTE cell ID of the operator the LTE signal of the operator is obtained, and the LTE signal of the carrier is obtained, and the LTE signal of the carrier is subtracted from the total signal received by the channel in the unlicensed band. It is not the carrier signal, and then the received power of the non-operator signal is measured.
  • the information about the LTE signal of the operator may be obtained through search and detection, or may be obtained by transmission between the base stations (for example, by X2 receiving transmission), or It is obtained by information such as the LTE cell ID of the neighboring cell/neighboring base station preset by the network planning information.
  • the base station performs channel estimation and/or data detection and decoding on the received signal according to the obtained information such as the operator's LTE cell ID, and combines the result of the channel estimation to reconstruct the carrier LTE signal.
  • the implementation manner 4 is applicable to a scenario in which multiple operators participating in at least one LTE system operator share spectrum on an unlicensed frequency band. If the received power of the non-operator signal is higher than the fourth threshold, the channel of the unlicensed band is considered to be occupied by the communication system other than the carrier, and the discovery signal is not sent to avoid interference; otherwise, the above is considered The channel of the unlicensed band is occupied by the operator and sends a discovery signal.
  • the fifth method is to compare whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-operator LTE signal on the channel in the unlicensed band with the fifth threshold; if not the carrier The received power of the LTE signal is higher than the fifth threshold, and the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state.
  • the LTE signal that is not the carrier refers to the signal sent by the LTE system of other operators other than the carrier.
  • the received power of the LTE signal that is not the operator on the channel in the unlicensed band refers to the predetermined time.
  • the total received power of the LTE signal that is not the operator's LTE signal on the channel in the above-mentioned unlicensed frequency band, or the average received power of the LTE signal that is not the operator's LTE signal, or the measured maximum reception of the LTE signal other than the carrier The power, or the received power of the LTE signal that is not the operator's LTE signal measured at any one time.
  • the predetermined time period if each measurement result indicates that the channel is idle, it is determined that the channel is idle; if at least one measurement result indicates that the channel is not idle, it is determined that the channel is not in an idle state.
  • the received power of the LTE signal of the non-operator on the channel in the unlicensed band is measured according to the information of the LTE signal other than the LTE cell ID of the operator.
  • the information of the LTE signal such as the LTE cell ID of the operator, may be searched for by the search.
  • the measurement may also be obtained by inter-base station transmission (for example, by X2 receiving transmission), or by using information such as the LTE cell ID of the neighboring/neighboring base station preset by the network planning information.
  • the implementation manner 5 is applicable to a scenario in which a multi-operator LTE system shares a spectrum of an unlicensed frequency band. If the received power of the LTE signal that is not the carrier is higher than the fifth threshold, the channel of the unlicensed band is considered to be occupied by the LTE system of other operators. To avoid interference, the discovery signal is not sent; otherwise, the above is considered The channel of the unlicensed band can be occupied by the LTE system of the operator, and the discovery signal is sent.
  • discovery signal indication information is further sent, where the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band.
  • the discovery signal indication information may indicate whether a channel on one or more frequency points of the unlicensed frequency band has a discovery signal transmission.
  • the discovery signal indication information may also indicate whether one or more cells have discovery signal transmissions on the unlicensed frequency band.
  • the one or more cells belong to the same base station.
  • the blind detection workload of the discovery signal by the UE can be avoided or reduced.
  • mapping information of the frequency point or the cell and the indication bit may be established in the discovery signal indication information.
  • each frequency point or cell corresponds to one bit. On the corresponding bit, "1" indicates discovery signal transmission, and "0" indicates that the discovery signal is not transmitted.
  • the discovery signal indication information may be transmitted in a downlink indication channel of the licensed frequency band (the following line control information (DCI), or a newly set indication channel).
  • DCI line control information
  • the binding relationship between the downlink indication channel and the discovery signal transmission may be established, for example, the indication channel on a certain subframe or a certain subframe interval indicates a discovery signal on the periodic transmission opportunity of the discovery signal immediately adjacent to the indication channel.
  • the transmission condition; or the downlink indication channel subframe is transmitted in the same subframe as the discovery signal or in the subsequent subframe of the discovery signal subframe, where the carrier/cell of the downlink indication channel transmission needs to be the same as the discovery signal transmission carrier/cell Downlink transmission timing.
  • the discovery signal indication information may also be transmitted on the unlicensed frequency band, and thus the present disclosure does not limit the transmission of the discovery signal indication information on which frequency band.
  • the embodiment of the present disclosure further provides a method for cell discovery. As shown in FIG. 2, the method specifically includes the following operations:
  • Step 200 Receive a discovery signal on a channel in an unlicensed frequency band, where the discovery signal is sent after the base station determines that the channel in the unlicensed frequency band is in an idle state.
  • Step 210 Discover a cell of the base station according to the discovery signal.
  • the channel of the unlicensed band is first confirmed to be idle, only the idle state is used to transmit the discovery signal on the channel of the unlicensed band, which can avoid interference to other communication systems working on the channel of the unlicensed band.
  • the cell discovery method can be divided into a process of discovering a signal transmission and a process of performing cell discovery based on a discovery signal.
  • the discovery signal indication information may be received, where the discovery signal indication information is used to indicate whether there is a discovery signal transmission on the channel in the unlicensed frequency band; if the discovery signal indication information indicates the unauthorized authorization There is a discovery signal transmission on the channel in the frequency band, and a discovery signal is received on the channel in the unlicensed frequency band.
  • the discovery signal indication information indicates that there is discovery signal transmission on the channel of one or more frequency points
  • the discovery signals of different cells are received on the channel of the indicated frequency point. If the discovery signal indication information indicates that there is discovery signal transmission on one or more cells, the discovery signal of the channel of the unlicensed frequency band is received in the indicated cell.
  • the discovery signal indication information may be received through the DCI by using a channel in the licensed frequency band.
  • the discovery signal indication information is received in a first available downlink subframe of the discovery signal transmission period of the current period.
  • the implementation of the discovery signal on the channel in the unlicensed frequency band may be implemented by blindly detecting the discovery signal on the channel in the unlicensed frequency band at the time of transmission of the known discovery signal.
  • the embodiment of the present disclosure further provides a discovery signal transmission device, as shown in FIG. 3, including:
  • the channel state determining module 301 is configured to determine whether a channel in the unlicensed frequency band is in an idle state
  • the discovery signal transmission module 302 is configured to: if the channel in the unlicensed frequency band is in an idle state, send the channel in the idle state in the unlicensed frequency band during the discovery signal transmission period of the current period.
  • the discovery signal if the channel in the unlicensed band is not in an idle state, the signal is not found on the channel that is not in the idle state in the unlicensed band during the current period.
  • the channel state determining module is specifically configured to:
  • the channel state determining module is specifically configured to:
  • Whether the channel in the unlicensed band is in an idle state is determined according to the received power on the channel in the unlicensed band.
  • the channel state determining module is specifically configured to:
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the total received power on the channel in the unlicensed band with the first threshold; if the total received power is higher than the first threshold, The channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-LTE signal on the channel in the unlicensed band with the second threshold; if the receiving power of the non-LTE signal is higher than the second a threshold value, where the channel in the unlicensed frequency band is not in an idle state; otherwise, the channel in the unlicensed frequency band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal on the channel in the unlicensed band with the third threshold; if the received power of the LTE signal is higher than the third threshold a value, the channel in the unlicensed band is in an idle state; otherwise, the channel in the unlicensed band is in a non-idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the non-local carrier signal on the channel in the unlicensed band with the fourth threshold; if the received power of the non-local carrier signal Above the fourth threshold, the channel in the unlicensed band is not in an idle state; otherwise, the channel in the unlicensed band is in an idle state; or
  • Determining whether the channel in the unlicensed band is in an idle state by comparing the received power of the LTE signal of the non-operator on the channel in the unlicensed band with the fifth threshold; if the LTE is not the carrier The received power of the signal is higher than the fifth threshold, and the channel in the unlicensed frequency band is not It is in an idle state, otherwise, the channel in the unlicensed band is in an idle state.
  • the channel state determining module is further configured to:
  • the received power of the LTE signal on the channel in the unlicensed frequency band is measured according to the acquired information of the LTE signal.
  • the channel state determining module is further configured to:
  • the apparatus further includes an indication information sending module, configured to:
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band.
  • the indication information sending module is specifically configured to:
  • the channel in the licensed band transmits the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the indication information sending module is specifically configured to:
  • the discovery signal indication information is transmitted in the first available downlink subframe of the discovery signal transmission period of the current period.
  • the discovery signal indication information is used to indicate whether there is a discovery signal transmission on a channel of at least one of the unlicensed frequency bands;
  • the discovery signal indication information is used to indicate whether at least one cell has a discovery signal transmission on a channel in the unlicensed frequency band.
  • the embodiment of the present disclosure further provides an access network device, as shown in FIG. 4, including:
  • the processor 400 is configured to read a program from the memory 420 and perform the following process:
  • the discovery signal is transmitted through the transceiver 410 on the idle state channel in the unlicensed band; if the channel in the unlicensed band is not idle a state in which the discovery signal is not transmitted on the channel that is not idle in the unlicensed band during the current period;
  • the transceiver 410 is configured to receive and transmit data under the control of the processor.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 400 and various circuits of memory represented by memory 420.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 410 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.
  • the access network device may be, but is not limited to, a small cell/TP.
  • the disclosure further provides a cell discovery device, as shown in FIG. 5, including:
  • the discovery signal receiving module 501 is configured to receive a discovery signal on a channel in an unlicensed frequency band, where the discovery signal is sent after the base station determines that the channel in the unlicensed frequency band is in an idle state;
  • the cell discovery module 502 is configured to discover a cell of the base station according to the discovery signal.
  • the discovery signal receiving module is specifically configured to:
  • the discovery signal indication information being used to indicate whether there is a discovery signal transmission on a channel in the unlicensed frequency band
  • the discovery signal indication information indicates discovery signal transmission on a channel in the unlicensed frequency band, receiving a discovery signal on a channel in the unlicensed frequency band.
  • the discovery signal receiving module when receiving the discovery signal indication information, is specifically configured to:
  • the channel in the licensed band receives the discovery signal indication information through downlink control information (DCI).
  • DCI downlink control information
  • the discovery signal receiving module when receiving the discovery signal indication information, is specifically configured to:
  • the discovery signal indication information is received in the first available downlink subframe of the discovery signal transmission period of the current period.
  • the discovery signal receiving module when receiving the discovery signal on the channel in the unlicensed frequency band, is specifically configured to:
  • the discovery signal indication information indicates whether there is a discovery signal transmission on a channel of at least one of the unlicensed frequency bands;
  • the discovery signal indication information is used to indicate whether at least one cell is on a channel in the unlicensed frequency band.
  • the discovery signal receiving module is specifically configured to:
  • the discovery signal is blindly detected on the channel in the unlicensed band.
  • the embodiment of the present disclosure further provides a user equipment (UE), as shown in FIG. 6, which includes:
  • the processor 600 reads the program from the memory 620 and performs the following process:
  • the transceiver 610 is configured to receive and transmit data under the control of the processor 600.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present disclosure may employ computer usable storage media (including but one or more of the computer usable program code embodied therein. It is not limited to the form of a computer program product implemented on a disk storage, a CD-ROM, an optical memory, or the like.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

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

Abstract

本公开文本公开了一种发现信号的传输方法、小区发现方法及装置。该方法包括：判断非授权频段中的信道是否为空闲状态；如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道发送发现信号；如果非授权频段中的信道不为空闲状态，在当前周期不在非授权频段中所述不为空闲状态的信道发送发现信号。根据本公开文本实施例提供的技术方案，可以在非授权频段上发送发现信号，从而避免授权频段资源紧张，导致无法为发现信号分配频谱资源或者发送发现信号导致较强干扰的问题。

Description

一种发现信号的传输方法、小区发现的方法及装置
相关申请的交叉参考
本申请主张在2014年9月19日在中国提交的中国专利申请号No.201410484626.4的优先权，其全部内容通过引用包含于此。
技术领域
本公开文本涉及通信技术领域，尤其涉及一种发现信号的传输方法、小区发现的方法及装置。
背景技术
随着技术发展以及数据业务的爆发式增长，越来越多的微小区(Pico cell)，家庭基站(Home NodeB)等低功率基站被部署用于提供局部的小覆盖，这类基站可统称为小小区(small cell)。在无线通信中，基站采用单天线或多天线实现对特定区域的无线信号覆盖，这些特定区域被称为小区，小区这一概念也常常指为这一特定覆盖区域内的用户终端提供服务的包含基站软件和硬件子系统在内的逻辑实体。部署small cell不仅可以扩展宏小区(Macro cell)的覆盖，也能够提升特定区域内的吞吐量。一般地，网络中部署的small cell越多，则有更多的用户可以被small cell服务，享受到small cell带来的性能增益，使得网络整体吞吐量得到更大的提升。可以预期，在实际网络中，很可能出现在业务需求集中的地理区域内大量密集部署small cell的情况。
在small cell实际部署场景中，多个small cell可以采用独立的小区标识(ID)，也可以是多个邻近的small cell和/或传输点(TP)(以下描述为small cell/TP)共享相同小区ID。由于单个small cell/TP所服务的用户设备(User Equipment，UE)数量较少，因此不同的时间段内单个small cell/TP的业务负荷波动比较大。为了节能以及减轻对其他small cell/TP的干扰，在small cell/TP没有业务传输时，可以采用小小区开/关(small cell on/off)技术根据实际业务情况开启或者关闭small cell/TP。为了让UE可以发现关闭了的small cell/TP，以使UE有业务传输时可以打开已经被关闭了的small cell/TP，需要 small cell/TP周期性地发射发现信号。
目前，蜂窝通信网络使用授权频谱资源进行网络部署和业务传输。即，small cell/TP周期性地在授权频谱资源上发射发现信号。但随着基站数目的不断增加，频谱资源越来越紧张，可能出现无法为发现信号分配频谱资源或者发送发现信号导致较强干扰的问题。
发明内容
(一)要解决的技术问题
本公开文本的目的是提供一种发现信号的传输方法、小区发现的方法及装置，以解决授权频谱资源紧张导致的问题。
(二)技术方案
本公开文本的目的是通过以下技术方案实现的：
一种发现信号的传输方法，包括：
判断非授权频段中的信道是否为空闲状态；
如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上发送发现信号；以及
如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中所述不为空闲状态的信道上发送发现信号。
可选地，所述判断非授权频段中的信道是否为空闲状态包括：
在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；以及
根据测量结果判断非授权频段中的信道是否为空闲状态。
基于上述任意方法实施例，可选地，所述判断非授权频段中的信道是否为空闲状态包括：
根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
可选地，所述根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态包括：
通过比较非授权频段中的信道上的接收总功率与第一门限值，判断所述 非授权频段中的信道是否为空闲状态；如果所述接收总功率高于第一门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非LTE信号的接收功率高于第二门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述LTE信号的接收功率高于第三门限值，所述非授权频段中的信道为空闲状态，否则，所述非授权频段中的信道为非空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商信号的接收功率高于第四门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商的LTE信号的接收功率高于第五门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态。
可选地，该方法还包括：
发送发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输。
可选地，所述发送发现信号指示信息包括：
在授权频段中的信道，通过下行控制信息(DCI)发送发现信号指示信息。
基于上述任意发现信号指示信息的实施例，可选地，所述发送发现信号指示信息包括：
在当前周期的发现信号传输时段的第一个可用的下行子帧，发送所述发现信号指示信息。
基于上述任意发现信号指示信息的实施例，可选地，所述发现信号指示信息用于指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
一种小区发现的方法，包括：
在非授权频段中的信道上接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
根据所述发现信号发现所述基站的小区。
可选地，所述在所述非授权频段中的信道上接收发现信号包括：
接收发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输；以及
如果所述发现信号指示信息指示所述非授权频段中的信道上有发现信号传输，在所述非授权频段中的信道上接收所述发现信号。
可选地，所述接收发现信号指示信息包括：
在授权频段中的信道，通过下行控制信息(DCI)接收所述发现信号指示信息。
基于上述任意方法实施例，可选地，所述接收发现信号指示信息包括：
在当前周期的发现信号传输时段的第一个可用的下行子帧，接收所述发现信号指示信息。
基于上述任意方法实施例，可选地，所述在非授权频段中的信道上接收发现信号包括：
在所述发现信号指示信息指示的所述非授权频段中有发现信号传输的频点的信道上接收各个小区的发现信号，所述发现信号指示信息指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，在所述发现信号指示信息指示的有发现信号传输的小区接收非授权频段的信道上传输的发现信号，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
可选地，如果没有接收到发现信号指示信息，所述在所述非授权频段中的信道上接收发现信号包括：
在已知的发现信号的传输时刻，在所述非授权频段中的信道上盲检所述发现信号。
基于与方法同样的发明构思，本公开文本实施例还提供一种发现信号传输装置，包括：
信道状态判断模块，用于判断非授权频段中的信道是否为空闲状态；以及
发现信号传输模块，用于如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上发送发现信号；如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中所述不为空闲状态的信道上发送发现信号。
可选地，所述信道状态判断模块具体用于：
在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；以及
根据测量结果判断非授权频段中的信道是否为空闲状态。
可选地，所述信道状态判断模块具体用于：
根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
可选地，所述信道状态判断模块具体用于：
通过比较非授权频段中的信道上的接收总功率与第一门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述接收总功率高于第一门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非LTE信号的接收功率高于第二门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述LTE信号的接收功率高于第三门限值，所述非授权频段中的信道为空闲状态，否则，所述非授 权频段中的信道为非空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商信号的接收功率高于第四门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商的LTE信号的接收功率高于第五门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态。
可选地，该装置还包括指示信息发送模块，
所述指示信息发送模块用于发送所述发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输。
可选地，所述指示信息发送模块具体用于：
在授权频段中的信道，通过下行控制信息(DCI)发送所述发现信号指示信息。
可选地，所述指示信息发送模块具体用于：
在当前周期的发现信号传输时段的第一个可用的下行子帧，发送所述发现信号指示信息。
可选地，所述发现信号指示信息用于指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
基于与方法同样的发明构思，本公开文本实施例还提供一种接入网设备，包括：
处理器、存储器和收发机；
处理器用于从存储器中读取程序，执行下列过程：
判断非授权频段中的信道是否为空闲状态；
如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上通过收发机发送发现信号；如果非授 权频段中的信道不为空闲状态，在当前周期内，不通过收发机在非授权频段中所述不为空闲状态的信道上发送发现信号；
收发机，用于在处理器的控制下接收和发送数据。
可选地，所述处理器从存储器中读取程序，执行下列过程：
在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；以及
根据测量结果判断非授权频段中的信道是否为空闲状态。
可选地，所述处理器从存储器中读取程序，执行下列过程：
根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
可选地，所述处理器从存储器中读取程序，执行下列过程：
通过比较非授权频段中的信道上的接收总功率与第一门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述接收总功率高于第一门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非LTE信号的接收功率高于第二门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述LTE信号的接收功率高于第三门限值，所述非授权频段中的信道为空闲状态，否则，所述非授权频段中的信道为非空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商信号的接收功率高于第四门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本 运营商的LTE信号的接收功率高于第五门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态。
可选地，所述处理器从存储器中读取程序，执行下列过程：
发送发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输。
可选地，所述处理器从存储器中读取程序，执行下列过程：
在授权频段中的信道，通过下行控制信息(DCI)发送发现信号指示信息。
可选地，所述处理器从存储器中读取程序，执行下列过程：
在当前周期的发现信号传输时段的第一个可用的下行子帧，发送发现信号指示信息。
可选地，所述发现信号指示信息用于指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
基于与方法同样的发明构思，本公开文本实施例还提供一种小区发现装置，其包括：
发现信号接收模块，用于在非授权频段中的信道上接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
小区发现模块，用于根据所述发现信号发现所述基站的小区。
可选地，所述发现信号接收模块具体用于：
接收发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输；以及
如果所述发现信号指示信息指示所述非授权频段中的信道上有发现信号传输，在所述非授权频段中的信道上接收发现信号。
可选地，当接收所述发现信号指示信息时，所述发现信号接收模块具体用于：
在授权频段中的信道，通过下行控制信息(DCI)接收发现信号指示信息。
可选地，当接收所述发现信号指示信息时，所述发现信号接收模块具体 用于：
在当前周期的发现信号传输时段的第一个可用的下行子帧，接收发现信号指示信息。
可选地，当在非授权频段中的信道上接收发现信号时，所述发现信号接收模块具体用于：
在所述发现信号指示信息指示的所述非授权频段中有发现信号传输的频点的信道上接收各个小区的发现信号，所述发现信号指示信息指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
在所述发现信号指示信息指示的有发现信号传输的小区接收非授权频段的信道上传输的发现信号，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
可选地，所述发现信号接收模块具体用于：
在已知的发现信号的传输时刻，在所述非授权频段中的信道上盲检所述发现信号。
根据本公开文本实施例提供的技术方案，可以在非授权频段上发送发现信号，从而避免授权频段资源紧张，导致无法为发现信号分配频谱资源或者发送发现信号导致较强干扰的问题。
基于与方法同样的发明构思，本公开文本实施例还提供一种UE，其包括：
处理器、存储器和收发机；
处理器从存储器中读取程序，执行下列过程：
在非授权频段中的信道上通过收发机接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
根据所述发现信号发现所述基站的小区。
可选地，处理器从存储器中读取程序，执行下列过程：
接收发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输；以及
如果所述发现信号指示信息指示所述非授权频段中的信道上有发现信号传输，在所述非授权频段中的信道上接收发现信号。
可选地，处理器从存储器中读取程序，执行下列过程：
在授权频段中的信道，通过下行控制信息(DCI)接收发现信号指示信息。
可选地，处理器从存储器中读取程序，执行下列过程：
在当前周期的发现信号传输时段的第一个可用的下行子帧，接收发现信号指示信息。
可选地，处理器从存储器中读取程序，执行下列过程：
在所述发现信号指示信息指示的所述非授权频段中有发现信号传输的频点的信道上接收各个小区的发现信号，所述发现信号指示信息指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
在所述发现信号指示信息指示的有发现信号传输的小区接收的非授权频段的信道上传输的发现信号，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
如果没有接收到发现信号指示信息，处理器从存储器中读取程序，执行下列过程：
在已知的发现信号的传输时刻，在所述非授权频段中的信道上盲检所述发现信号。
(三)有益效果
本公开文本的有益效果如下：
本公开文本实施例提供的技术方案，可以在非授权频段上发送发现信号，从而避免授权频段资源紧张，导致无法为发现信号分配频谱资源或者发送发现信号导致较强干扰的问题。
附图说明
为了更清楚地说明本公开文本实施例或现有技术中的技术方案，下面将对实施例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公开文本的一些实施例，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为本公开文本实施例提供的发现信号传输方法流程图；
图2为本公开文本实施例提供的小区发现方法流程图；
图3为本公开文本实施例提供的发现信号传输装置示意图；
图4为本公开文本实施例提供的接入网设备的结构示意图；
图5为本公开文本实施例提供的小区发现装置示意图；
图6为本公开文本实施例提供的UE的结构示意图。
具体实施方式
下面结合附图和实施例，对本公开文本的具体实施方式做进一步描述。以下实施例仅用于说明本公开文本，但不用来限制本公开文本的范围。
为使本公开文本实施例的目的、技术方案和优点更加清楚，下面将结合本公开文本实施例的附图，对本公开文本实施例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公开文本的一部分实施例，而不是全部的实施例。基于所描述的本公开文本的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开文本所属领域内具有一般技能的人士所理解的通常意义。本公开文本专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
下面将结合本公开文本实施例中的附图，对本公开文本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公开文本一部分实施例，而不是全部的实施例。基于本公开文本中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
现有频谱资源可以分为授权频谱资源(又称授权频段)和非授权频谱资源(又称非授权频段)。其中，授权频段为划分好的专用频谱资源，其干扰基本可预知。另一方面，非授权频段没有规划具体的应用系统，可以为多种无 线通信系统通过抢占资源的方式使用共享的非授权频段。目前使用非授权频段的无线通信系统包括蓝牙、无线高保真(WiFi)等。本公开文本实施例提供的技术方案，可以在非授权频段上发送发现信号，从而避免授权频段资源紧张，导致无法为发现信号分配频谱资源或者发送发现信号导致较强干扰的问题。
下面将结合附图，对本公开文本实施例提供的技术方案进行详细说明。
本公开文本实施例提供的发现信号的传输方法如图1所示，具体包括如下操作：
步骤100、判断非授权频段中的信道是否为空闲状态。
本公开文本实施例中，非授权频段指2.4GHz或5GHz等不经无线电频谱管理部门授权即可使用的频段。
步骤110、如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中该空闲状态的信道上发送发现信号。
本公开文本实施例中，发现信号既可以是第三代合作伙伴计划(3GPP)版本12规定的发现信号，即主同步信号(PSS)/辅同步信号(SSS)/小区专属参考信号(CRS)以及网络可配置的信道质量信息参考信号(CSI-RS)；也可以是新设计的发现信号。其中新设计的发现信号至少具有提供UE组时频同步、小区和/或传输点检测/RRM测量等部分或全部功能，且不同于R12发现信号的新设计的发现信号。
步骤120、如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中该不为空闲状态的信道上发送发现信号。
本公开文本实施例提供的发现信号传输方法，不仅能够解决授权频谱资源紧张导致的问题。由于首先确认非授权频段的信道是否空闲，只有空闲状态时，才在非授权频段的信道上发送发现信号，能够避免对非授权频段的信道上工作的其他通信系统造成干扰。
本公开文本实施例提供的技术方案，可以但不仅适用于small cell/TP发送发现信号。
对于具备多信道同时检测能力的设备，例如宏基站、small cell/TP。可以同时判断非授权频段的多个信道是否为空闲状态，如果有至少一个信道为空 闲状态，则在空闲状态的全部或部分信道上发送发现信号；如果没有信道为空闲状态，则不在非授权频段上发送发现信号。
对于不具备多信道同时检测能力的设备，甚至具备多信道同时检测能力的设备，也可以判断非授权频段中的一个信道是否为空闲状态，如果为空闲状态，则在该信道上发送发现信号，否则，继续判断非授权频段的另一个信道是否为空闲状态，以此类推，直至找到空闲状态的信道或者非授权频段上没有可以继续进行判断的信道。
本公开文本实施例中，具体对非授权频段中的哪些信道进行判断，可以根据需求确定或者预先约定，本公开文本不做限定。如果对非授权频段中的至少两个信道进行判断，判断的顺序可以是随机的，也可以按照信道顺序，本公开文本对此不做限定。
基于上述任一实现方式，在执行步骤100时，具体可以在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；根据测量结果判断非授权频段中的信道是否为空闲状态。
本公开文本实施例中，周期是指发现信号的发送周期。例如，可以是3GPP版本12规定的发现信号发送周期：40ms、80ms、160ms等等。
本公开文本实施例中，上述预定时间段的结束时刻可以是当前周期的发现信号传输时段的起始时刻，也可以早于当前周期的发现信号传输时段的起始时刻。可选地，上述预定时间段的起始时刻到当前周期的发现信号发送时段的起始时刻的时间间隔为现有WiFi系统中分布式帧间空隙(DIFS)的大小。
本公开文本实施例中，既可以在上述预定时段内持续测量，也可以在上述预定时段中不连续地测量至少一次。
基于上述任一实现方式，执行上述步骤100时，具体是根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
应当指出的是，无论同时判断至少两个信道是否为空闲状态，还是依次判断单个信道是否为空闲状态，上述非授权频段中的信道上的接收功率，是指单个信道上的接收功率。
其具体实现方式有多种，下面例举几种优选的实现方式。
实现方式一、通过比较非授权频段中的信道上的接收总功率与第一门限 值，判断非授权频段中的该信道是否为空闲状态；如果接收总功率高于第一门限值，非授权频段中的该信道不为空闲状态，否则，非授权频段中的该信道为空闲状态。
如果是在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道，则上述非授权频段中的信道上的接收总功率，是指该预定时间段内、上述非授权频段中的信道上每次的接收总功率，或者各次测量的平均接收功率，或者测量到的最大接收功率，或者任意一次测量的接收功率。可选地，在该预定时间段内，如果每次测量结果均指示该信道空闲，则判断该信道空闲；如果有至少一次测量结果指示该信道非空闲，则判断该信道不为空闲状态。
实现方式二、通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断非授权频段中的该信道是否为空闲状态；如果非LTE信号的接收功率高于第二门限值，非授权频段中的该信道不为空闲状态，否则，非授权频段中的该信道为空闲状态。
其中，LTE信号是指LTE系统发出的信号。
其中，非LTE信号是指，除LTE系统之外的通信系统在该非授权频段中的信道上传输的信号。
如果是在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道，则上述非授权频段中的信道上非LTE信号的接收功率，是指该预定时间段内、上述非授权频段中的信道上非LTE信号的接收总功率，或者非LTE信号的平均接收功率，或者测量到的非LTE信号的最大接收功率，或者任意一次测量的非LTE信号的接收功率。可选地，在该预定时间段内，如果每次测量结果均指示该信道空闲，则判断该信道空闲；如果有至少一次测量结果指示该信道非空闲，则判断该信道不为空闲状态。
其中，测量非授权频段上的非LTE信号接收功率的实现方式有多种。例如，根据LTE小区ID等等LTE信号的信息，测量非授权频段中的信道上的LTE信号的接收功率，进而从非授权频段中的信道的接收总功率中减去LTE信号的接收功率，得到非LTE信号的接收功率。又例如，根据LTE小区ID等等LTE信号的信息，得到LTE信号，进而从非授权频段中的信道接收到的 总信号中减去LTE信号，得到非LTE信号，再测量非LTE信号的接收功率。
其中，LTE小区ID等等LTE信号的信息可以通过搜索检测得到，也可以通过基站间传输(例如通过X2接收传输)得到，也可以通过网络规划信息预置的邻区/邻基站的LTE小区ID等信息得到。
基站根据所得的上述小区ID等信息对接收到的信号中进行信道估计和/或进行数据检测与译码，结合信道估计的结果，进而重构出LTE信号。
其中重构LTE信号的过程例如：根据LTE小区ID生成原始导频序列和/或根据译码的数据按照现有36.212协议规定的过程生成数据符号，将原始导频序列或数据符号与信道估计得出的信道因子H相乘，即得到重构的LTE信号。
该实现方式二适用于单运营商使用非授权频段的场景。如果非LTE信号的接收功率高于第二门限值，则认为在上述非授权频段的信道上存在LTE系统之外的通信系统(如WiFi)的信号，为避免干扰，则不发送发现信号；否则，认为在上述非授权频段的信道上不存在LTE系统之外的通信系统，发送发现信号。
实现方式三、通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断非授权频段中的该信道是否为空闲状态；如果LTE信号的接收功率高于第三门限值，非授权频段中的该信道为空闲状态，否则，非授权频段中的该信道为非空闲状态。
如果是在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道，则上述非授权频段中的信道上LTE信号的接收功率，是指该预定时间段内、上述非授权频段中的信道上LTE信号的接收总功率，或者LTE信号的平均接收功率，或者测量到的LTE信号的最大接收功率，或者任意一次测量的LTE信号的接收功率。可选地，在该预定时间段内，如果每次测量结果均指示该信道空闲，则判断该信道空闲；如果有至少一次测量结果指示该信道非空闲，则判断该信道不为空闲状态。
其中，测量非授权频段上的LTE信号接收功率的实现方式有多种。例如，根据LTE小区ID等等LTE信号的信息，测量非授权频段中的信道上的LTE信号的接收功率。
其中，LTE小区ID等等LTE信号的信息可以通过搜索检测得到，也可以通过基站间传输(例如通过X2接收传输)得到，也可以通过网络规划信息预置的邻区/邻基站的LTE小区ID等信息得到。
该实现方式三适用于单运营商使用非授权频段的场景。如果LTE信号的接收功率高于第三门限值，则认为上述非授权频段的信道被LTE系统占用，发送发现信号；否则，认为上述非授权频段的信道被LTE系统之外的通信系统占用，不发送发现信号。
实现方式四、通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断非授权频段中的该信道是否为空闲状态；如果非本运营商信号的接收功率高于第四门限值，非授权频段中的该信道不为空闲状态，否则，非授权频段中的该信道为空闲状态。
其中，非本运营商信号是指，除本运营商的LTE信号之外的其他信号。
如果是在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道，则上述非本运营商信号的接收功率，是指该预定时间段内、上述非授权频段中的信道上非本运营商信号的接收总功率，或者非本运营商信号的平均接收功率，或者测量到的非本运营商信号的最大接收功率，或者任意一次测量的非本运营商信号的接收功率。可选地，在该预定时间段内，如果每次测量结果均指示该信道空闲，则判断该信道空闲；如果有至少一次测量结果指示该信道非空闲，则判断该信道不为空闲状态。
其中，测量非授权频段上的非本运营商信号接收功率的实现方式有多种。例如，根据本运营商LTE小区ID等等本运营商LTE信号的信息，测量非授权频段中的信道上的本运营商LTE信号的接收功率，进而从非授权频段中的信道的接收总功率中减去本运营商LTE信号的接收功率，得到非本运营商信号的接收功率。又例如，根据本运营商LTE小区ID等等本运营商LTE信号的信息，得到本运营商LTE信号，进而从非授权频段中的信道接收到的总信号中减去本运营商LTE信号，得到非本运营商信号，再测量非本运营商信号的接收功率。
其中，本运营商LTE小区ID等等本运营商LTE信号的信息可以通过搜索检测得到，也可以通过基站间传输(例如通过X2接收传输)得到，也可 以通过网络规划信息预置的邻区/邻基站的LTE小区ID等信息得到。
基站根据所得的上述本运营商LTE小区ID等信息对接收到的信号中进行信道估计和/或进行数据检测与译码，结合信道估计的结果，进而重构出本运营商LTE信号。
其中重构本运营商LTE信号的过程可以参照上述实现方式二，此处不再赘述。
该实现方式四适用于至少一个LTE系统运营商参与的多运营商在非授权频段上共享频谱的场景。如果非本运营商信号的接收功率高于第四门限值，则认为上述非授权频段的信道被本运营商之外的通信系统占用，为避免干扰，则不发送发现信号；否则，认为上述非授权频段的信道被本运营商占用，发送发现信号。
实现方式五、通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断非授权频段中的该信道是否为空闲状态；如果非本运营商的LTE信号的接收功率高于第五门限值，非授权频段中的该信道不为空闲状态，否则，非授权频段中的该信道为空闲状态。
其中，非本运营商的LTE信号是指本运营商之外的其他运营商的LTE系统发出的信号。
如果是在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道，则上述非授权频段中的信道上非本运营商的LTE信号的接收功率，是指该预定时间段内、上述非授权频段中的信道上非本运营商的LTE信号的接收总功率，或者非本运营商的LTE信号的平均接收功率，或者测量到的非本运营商的LTE信号的最大接收功率，或者任意一次测量的非本运营商的LTE信号的接收功率。可选地，在该预定时间段内，如果每次测量结果均指示该信道空闲，则判断该信道空闲；如果有至少一次测量结果指示该信道非空闲，则判断该信道不为空闲状态。
其中，测量非授权频段上的非本运营商的LTE信号接收功率的实现方式有多种。例如，根据非本运营商的LTE小区ID等等LTE信号的信息，测量非授权频段中的信道上的非本运营商的LTE信号的接收功率。
其中，非本运营商的LTE小区ID等等LTE信号的信息可以通过搜索检 测得到，也可以通过基站间传输(例如通过X2接收传输)得到，也可以通过网络规划信息预置的邻区/邻基站的LTE小区ID等信息得到。
该实现方式五适用于多运营商的LTE系统共享非授权频段的频谱的场景。如果非本运营商的LTE信号的接收功率高于第五门限值，则认为上述非授权频段的信道被其他运营商的LTE系统占用，为避免干扰，则不发送发现信号；否则，认为上述非授权频段的信道可以被本运营商的LTE系统占用，发送发现信号。
基于上述任意实施例，可选地，还发送发现信号指示信息，该发现信号指示信息用于指示非授权频段中的信道上是否有发现信号传输。
具体的，发现信号指示信息可以指示非授权频段的一个或多个频点上的信道是否有发现信号传输。
发现信号指示信息也可以指示一个或多个小区在非授权频段上是否有发现信号传输。可选地，这一个或多个小区归属于同一基站。
通过向UE发送发现信号指示信息，可以避免或减少UE对发现信号的盲检工作量。
具体的，发现信号指示信息中可以建立频点或小区与指示比特的映射关系。例如每个频点或小区对应一个比特，在该对应比特上，“1”表示发现信号传输，“0”表示发现信号不传输。
具体的，发现信号指示信息可以在授权频段的下行指示信道(如下行控制信息(DCI)，或新设定的指示信道)中传输。可以建立传输该下行指示信道与发现信号传输之间的绑定关系，例如某一子帧或某一子帧区间上的指示信道指示该指示信道后紧邻的发现信号周期性传输机会上的发现信号传输情况；或者，该下行指示信道子帧在与发现信号相同子帧或在发现信号子帧的后续子帧上传输，其中下行指示信道传输的载波/小区需要与发现信号传输载波/小区具有相同的下行传输定时。
应当指出的是，也可以在非授权频段上发送发现信号指示信息，因此本公开文本并不以在何种频段上发送发现信号指示信息为限定。
本公开文本实施例还提供一种小区发现的方法，如图2所示，该方法具体包括如下操作：
步骤200、在非授权频段中的信道上接收发现信号，该发现信号是基站确定非授权频段中的信道为空闲状态后发送的。
步骤210、根据该发现信号发现该基站的小区。
根据本公开文本实施例提供的方法，不仅能够解决授权频谱资源紧张导致的问题。由于首先确认非授权频段的信道是否空闲，只有空闲状态时，才在非授权频段的信道上发送发现信号，能够避免对非授权频段的信道上工作的其他通信系统造成干扰。
小区发现方法可以分为发现信号传输的过程和根据发现信号进行小区发现的过程。对于发现信号传输的过程，可选地，可以接收发现信号指示信息，该发现信号指示信息用于指示该非授权频段中的信道上是否有发现信号传输；如果该发现信号指示信息指示该非授权频段中的信道上有发现信号传输，在该非授权频段中的信道上接收发现信号。
其中，如果发现信号指示信息指示在一个或多个频点的信道上有发现信号传输，则在指示的频点的信道上接收不同小区的发现信号。如果发现信号指示信息指示在一个或多个小区上有发现信号传输，则在指示的小区中接收非授权频段的频道的发现信号。
可选地，具体可以在授权频段中的信道，通过DCI接收发现信号指示信息。
可选地，在当前周期的发现信号传输时段的第一个可用的下行子帧，接收发现信号指示信息。
如果没有接收到发现信号指示信息，在非授权频段中的信道上接收发现信号的实现方式可以是：在已知的发现信号的传输时刻，在该非授权频段中的信道上盲检发现信号。
基于与方法同样的发明构思，本公开文本实施例还提供一种发现信号传输装置，如图3所示，包括：
信道状态判断模块301，用于判断非授权频段中的信道是否为空闲状态；以及
发现信号传输模块302，用于如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上发送 发现信号；如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中所述不为空闲状态的信道上发现信号。
可选地，所述信道状态判断模块具体用于：
在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；以及
根据测量结果判断非授权频段中的信道是否为空闲状态。
基于上述任意装置实施例，可选地，所述信道状态判断模块具体用于：
根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
可选地，所述信道状态判断模块具体用于：
通过比较非授权频段中的信道上的接收总功率与第一门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述接收总功率高于第一门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非LTE信号的接收功率高于第二门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述LTE信号的接收功率高于第三门限值，所述非授权频段中的信道为空闲状态，否则，所述非授权频段中的信道为非空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商信号的接收功率高于第四门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商的LTE信号的接收功率高于第五门限值，所述非授权频段中的信道不 为空闲状态，否则，所述非授权频段中的信道为空闲状态。
可选地，判断非授权频段中的信道是否为空闲状态之前，所述信道状态判断模块还用于：
根据获取的LTE信号的信息，测量非授权频段中的信道上的LTE信号的接收功率。
可选地，所述信道状态判断模块还用于：
根据测量到的所述非授权频段中的信道的接收总功率和所述LTE信号的接收功率，确定所述非授权频段中的信道上非LTE信号的接收功率。
基于上述任意装置实施例，可选地，还包括指示信息发送模块，用于：
发送发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输。
可选地，所述指示信息发送模块具体用于：
在授权频段中的信道，通过下行控制信息(DCI)发送发现信号指示信息。
可选地，所述指示信息发送模块具体用于：
在当前周期的发现信号传输时段的第一个可用的下行子帧，发送发现信号指示信息。
可选地，所述发现信号指示信息用于指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
基于与方法同样的发明构思，本公开文本实施例还提供一种接入网设备，如图4所示，包括：
处理器400，用于从存储器420中读取程序，执行下列过程：
判断非授权频段中的信道是否为空闲状态；
如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上通过收发机410发送发现信号；如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中所述不为空闲状态的信道上发送发现信号；以及
收发机410，用于在处理器的控制下接收和发送数据。
其中，在图4中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器400代表的一个或多个处理器和存储器420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机410可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器400负责管理总线架构和通常的处理，存储器420可以存储处理器400在执行操作时所使用的数据。
本公开文本实施例中，接入网设备可以但不仅限于是small cell/TP。
基于与方法同样的发明构思，本公开文本还提供一种小区发现装置，如图5所示，包括：
发现信号接收模块501，用于在非授权频段中的信道上接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
小区发现模块502，用于根据所述发现信号发现所述基站的小区。
可选地，所述发现信号接收模块具体用于：
接收发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输；以及
如果所述发现信号指示信息指示所述非授权频段中的信道上有发现信号传输，在所述非授权频段中的信道上接收发现信号。
可选地，接收发现信号指示信息时，所述发现信号接收模块具体用于：
在授权频段中的信道，通过下行控制信息(DCI)接收发现信号指示信息。
可选地，接收发现信号指示信息时，所述发现信号接收模块具体用于：
在当前周期的发现信号传输时段的第一个可用的下行子帧，接收发现信号指示信息。
可选地，在非授权频段中的信道上接收发现信号时，所述发现信号接收模块具体用于：
在所述发现信号指示信息指示的所述非授权频段中有发现信号传输的频 点的信道上接收各个小区的发现信号，所述发现信号指示信息指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
在所述发现信号指示信息指示的有发现信号传输的小区接收非授权频段的信道上传输的发现信号，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
如果没有接收到发现信号指示信息，所述发现信号接收模块具体用于：
在已知的发现信号的传输时刻，在所述非授权频段中的信道上盲检发现信号。
基于与方法同样的发明构思，本公开文本实施例还提供一种用户设备(UE)，如图6所示，其包括：
处理器600从存储器620中读取程序，执行下列过程：
在非授权频段中的信道上通过收发机610接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；
根据所述发现信号发现所述基站的小区；
收发机610，用于在处理器600的控制下接收和发送数据。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口630还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理，存储器620可以存储处理器600在执行操作时所使用的数据。
本领域内的技术人员应明白，本公开文本的实施例可提供为方法、系统、或计算机程序产品。因此，本公开文本可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开文本可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但 不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开文本是参照根据本公开文本实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开文本的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开文本范围的所有变更和修改。
显然，本领域的技术人员可以对本公开文本进行各种改动和变型而不脱离本公开文本的精神和范围。这样，倘若本公开文本的这些修改和变型属于本公开文本权利要求及其等同技术的范围之内，则本公开文本也意图包含这些改动和变型在内。

Claims (30)

  1. 一种发现信号的传输方法，包括：
    判断非授权频段中的信道是否为空闲状态；
    如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上发送发现信号；以及
    如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中所述不为空闲状态的信道上发送发现信号。
  2. 根据权利要求1所述的方法，其中，所述判断非授权频段中的信道是否为空闲状态包括：
    在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；以及
    根据测量结果判断非授权频段中的信道是否为空闲状态。
  3. 根据权利要求1或2所述的方法，其中，所述判断非授权频段中的信道是否为空闲状态包括：
    根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
  4. 根据权利要求3所述的方法，其中，所述根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态包括：
    通过比较非授权频段中的信道上的接收总功率与第一门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述接收总功率高于第一门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
    通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非LTE信号的接收功率高于第二门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
    通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述LTE信号的接收功 率高于第三门限值，所述非授权频段中的信道为空闲状态，否则，所述非授权频段中的信道为非空闲状态；或者，
    通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商信号的接收功率高于第四门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
    通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商的LTE信号的接收功率高于第五门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态。
  5. 根据权利要求1至4中任一项所述的方法，还包括：
    发送发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输。
  6. 根据权利要求5所述的方法，其中，所述发送发现信号指示信息包括：
    在授权频段中的信道，通过下行控制信息(DCI)发送发现信号指示信息。
  7. 根据权利要求5或6所述的方法，其中，所述发送发现信号指示信息包括：
    在当前周期的发现信号传输时段的第一个可用的下行子帧，发送所述发现信号指示信息。
  8. 根据权利要求5或6所述的方法，其中，所述发现信号指示信息用于指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
    所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
  9. 一种小区发现的方法，包括：
    在非授权频段中的信道上接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
    根据所述发现信号发现所述基站的小区。
  10. 根据权利要求9所述的方法，其中，所述在所述非授权频段中的信 道上接收发现信号包括：
    接收发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输；以及
    如果所述发现信号指示信息指示所述非授权频段中的信道上有发现信号传输，在所述非授权频段中的信道上接收所述发现信号。
  11. 根据权利要求10所述的方法，其中，所述接收发现信号指示信息包括：
    在授权频段中的信道，通过下行控制信息(DCI)接收所述发现信号指示信息。
  12. 根据权利要求10或11所述的方法，其中，所述接收发现信号指示信息包括：
    在当前周期的发现信号传输时段的第一个可用的下行子帧，接收所述发现信号指示信息。
  13. 根据权利要求10或11所述的方法，其中，所述在非授权频段中的信道上接收发现信号包括：
    在所述发现信号指示信息指示的所述非授权频段中的有发现信号传输的频点的信道上接收各个小区的发现信号，所述发现信号指示信息指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
    在所述发现信号指示信息指示的有发现信号传输的小区接收非授权频段的信道传输的发现信号，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
  14. 根据权利要求9所述的方法，其中，所述在所述非授权频段中的信道上接收发现信号包括：
    在已知的发现信号的传输时刻，在所述非授权频段中的信道上盲检所述发现信号。
  15. 一种发现信号传输装置，包括：
    信道状态判断模块，用于判断非授权频段中的信道是否为空闲状态；以及
    发现信号传输模块，用于如果非授权频段中的信道为空闲状态，在当前 周期的发现信号传输时段，在非授权频段中所述空闲状态的信道上发送发现信号；如果非授权频段中的信道不为空闲状态，在当前周期内，不在非授权频段中所述不为空闲状态的信道上发送发现信号。
  16. 根据权利要求15所述的装置，其中，所述信道状态判断模块具体用于：
    在当前周期的发现信号传输时段之前的预定时间段内，测量非授权频段中的信道；以及
    根据测量结果判断非授权频段中的信道是否为空闲状态。
  17. 根据权利要求15或16所述的装置，其中，所述信道状态判断模块具体用于：
    根据非授权频段中的信道上的接收功率，判断非授权频段中的信道是否为空闲状态。
  18. 根据权利要求17所述的装置，其中，所述信道状态判断模块具体用于：
    通过比较非授权频段中的信道上的接收总功率与第一门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述接收总功率高于第一门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
    通过比较非授权频段中的信道上的非LTE信号的接收功率与第二门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非LTE信号的接收功率高于第二门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态；或者，
    通过比较非授权频段中的信道上的LTE信号的接收功率与第三门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述LTE信号的接收功率高于第三门限值，所述非授权频段中的信道为空闲状态，否则，所述非授权频段中的信道为非空闲状态；或者，
    通过比较非授权频段中的信道上的非本运营商信号的接收功率与第四门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商信号的接收功率高于第四门限值，所述非授权频段中的信道不为空闲状态， 否则，所述非授权频段中的信道为空闲状态；或者，
    通过比较非授权频段中的信道上的非本运营商的LTE信号的接收功率与第五门限值，判断所述非授权频段中的信道是否为空闲状态；如果所述非本运营商的LTE信号的接收功率高于第五门限值，所述非授权频段中的信道不为空闲状态，否则，所述非授权频段中的信道为空闲状态。
  19. 根据权利要求15至18中任一项所述的装置，还包括指示信息发送模块；
    其中，所述指示信息发送模块发送所述发现信号指示信息，所述发现信号指示信息用于指示所述非授权频段中的信道上是否有发现信号传输。
  20. 根据权利要求19所述的装置，其中，所述指示信息发送模块具体用于：
    在授权频段中的信道，通过下行控制信息(DCI)发送所述发现信号指示信息。
  21. 根据权利要求19或20所述的装置，其中，所述指示信息发送模块具体用于：
    在当前周期的发现信号传输时段的第一个可用的下行子帧，发送所述发现信号指示信息。
  22. 根据权利要求19或20所述的装置，其中，所述发现信号指示信息用于指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
    所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
  23. 一种小区发现装置，包括：
    发现信号接收模块，用于在非授权频段中的信道上接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
    小区发现模块，用于根据所述发现信号发现所述基站的小区。
  24. 根据权利要求23所述的装置，其中，所述发现信号接收模块具体用于：
    接收发现信号指示信息，所述发现信号指示信息用于指示所述非授权频 段中的信道上是否有发现信号传输；以及
    如果所述发现信号指示信息指示所述非授权频段中的信道上有发现信号传输，在所述非授权频段中的信道上接收发现信号。
  25. 根据权利要求24所述的装置，其中，当接收所述发现信号指示信息时，所述发现信号接收模块具体用于：
    在授权频段中的信道，通过下行控制信息(DCI)接收发现信号指示信息。
  26. 根据权利要求24或25所述的装置，其中，当接收所述发现信号指示信息时，所述发现信号接收模块具体用于：
    在当前周期的发现信号传输时段的第一个可用的下行子帧，接收发现信号指示信息。
  27. 根据权利要求24或25所述的装置，其中，当在非授权频段中的信道上接收发现信号时，所述发现信号接收模块具体用于：
    在所述发现信号指示信息指示的所述非授权频段中的至少一个频点的信道上盲检各个小区的发现信号，所述发现信号指示信息指示所述非授权频段中的至少一个频点的信道上是否有发现信号传输；或者，
    在所述发现信号指示信息指示的有发现信号传输的小区接收非授权频段的信道传输的发现信号，所述发现信号指示信息用于指示至少一个小区在所述非授权频段中的信道上是否有发现信号传输。
  28. 根据权利要求25所述的装置，其中，所述发现信号接收模块具体用于：
    在已知的发现信号的传输时刻，在所述非授权频段中的信道上盲检所述发现信号。
  29. 一种网络侧设备，包括：
    处理器；
    存储器，通过总线接口与所述处理器相连接，并且用于存储所述处理器在执行操作时所使用的程序和数据；以及
    收发机，用于在处理器的控制下接收和发送数据，
    当处理器调用并执行所述存储器中所存储的程序和数据时，实现如下的 功能模块：
    信道状态判断模块，用于判断非授权频段中的信道是否为空闲状态；以及
    发现信号传输模块，用于如果非授权频段中的信道为空闲状态，在当前周期的发现信号传输时段，通过所述收发机在非授权频段中所述空闲状态的信道上发送发现信号；如果非授权频段中的信道不为空闲状态，在当前周期内，不通过所述收发机在非授权频段中所述不为空闲状态的信道上发送发现信号。
  30. 一种用户侧设备，包括：
    处理器；
    存储器，通过总线接口与所述处理器相连接，并且用于存储所述处理器在执行操作时所使用的程序和数据；以及
    收发机，用于在处理器的控制下接收和发送数据，
    当处理器调用并执行所述存储器中所存储的程序和数据时，实现如下的功能模块：
    发现信号接收模块，用于通过所述收发机在非授权频段中的信道上接收发现信号，所述发现信号是基站确定非授权频段中的信道为空闲状态后发送的；以及
    小区发现模块，用于根据所述发现信号发现所述基站的小区。
PCT/CN2015/085578 2014-09-19 2015-07-30 一种发现信号的传输方法、小区发现的方法及装置 WO2016041415A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2017507993A JP6437094B2 (ja) 2014-09-19 2015-07-30 発見信号伝送方法、セル発見方法及び装置
US15/327,622 US10098058B2 (en) 2014-09-19 2015-07-30 Method and apparatus of transmitting discovery signal, method and apparatus of discovering cell
EP15842646.0A EP3171642B1 (en) 2014-09-19 2015-07-30 Discovery signal transmission method and device
KR1020177007221A KR101913051B1 (ko) 2014-09-19 2015-07-30 발견 신호의 전송 방법, 셀 발견 방법 및 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410484626.4 2014-09-19
CN201410484626.4A CN105491641B (zh) 2014-09-19 2014-09-19 一种发现信号的传输方法、小区发现的方法及装置

Publications (1)

Publication Number Publication Date
WO2016041415A1 true WO2016041415A1 (zh) 2016-03-24

Family

ID=55532536

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/085578 WO2016041415A1 (zh) 2014-09-19 2015-07-30 一种发现信号的传输方法、小区发现的方法及装置

Country Status (6)

Country Link
US (1) US10098058B2 (zh)
EP (1) EP3171642B1 (zh)
JP (1) JP6437094B2 (zh)
KR (1) KR101913051B1 (zh)
CN (1) CN105491641B (zh)
WO (1) WO2016041415A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112867122B (zh) * 2015-09-29 2024-04-16 荣耀终端有限公司 一种控制无线通信终端的发射功率的方法和无线通信终端
BR112018072987A2 (pt) 2016-05-11 2019-03-06 Telefonaktiebolaget Lm Ericsson (Publ) método implementado em um dispositivo de rede, método implementado em um dispositivo terminal, dispositivo de rede, dispositivo terminal, e, programa de computador
CN107770804B (zh) * 2016-08-22 2021-04-13 北京佰才邦技术有限公司 一种邻区信道测量方法、装置、终端及基站
US11343709B2 (en) * 2018-02-15 2022-05-24 Apple Inc. Hidden WLAN detection for better ecosystem design in 5G
CN110300459B (zh) * 2018-03-23 2021-05-18 维沃移动通信有限公司 一种信号传输方法及网络设备
JP6852028B2 (ja) * 2018-09-04 2021-03-31 株式会社東芝 電子装置及び方法
WO2023070296A1 (zh) * 2021-10-26 2023-05-04 北京小米移动软件有限公司 一种感知信号发送方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101179778A (zh) * 2006-11-07 2008-05-14 华为技术有限公司 一种共存性无线通信系统中的信息传输方法及装置
CN101778435A (zh) * 2010-01-13 2010-07-14 北京邮电大学 一种异构无线网络中频谱资源的分配方法及装置
CN102917456A (zh) * 2011-08-02 2013-02-06 华为技术有限公司 一种通信方法、多模终端和基站及系统
CN103686746A (zh) * 2012-09-06 2014-03-26 华为技术有限公司 设备发现信号传输的方法、设备及基站

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8635645B2 (en) * 2008-09-30 2014-01-21 Qualcomm Incorporated Apparatus and methods of providing and receiving venue level transmissions and services
US20120207033A1 (en) * 2011-02-11 2012-08-16 Renesas Mobile Corporation Shared Band Deployment Support Function For Connection Establishment
JP2013121091A (ja) * 2011-12-08 2013-06-17 Kddi Corp 無線ｌａｎアクセスポイント装置及び無線ｌａｎ端末装置
WO2013155672A1 (en) * 2012-04-17 2013-10-24 Renesas Mobile Corporation Method for avoiding interference between clusters of communication devices offloaded to unlicensed spectrum
US9210652B2 (en) 2012-07-06 2015-12-08 Futurewei Technologies, Inc. System and method for active scanning in multi-channel Wi-Fi system
JP5952921B2 (ja) 2013-01-18 2016-07-13 京セラ株式会社 通信制御方法、ユーザ端末、及び特定機器
WO2015174437A1 (ja) * 2014-05-15 2015-11-19 株式会社Ｎｔｔドコモ 無線基地局、ユーザ端末および無線通信システム
CN105101223A (zh) * 2014-05-16 2015-11-25 北京三星通信技术研究有限公司 一种在免许可频段上进行数据传输的方法和设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101179778A (zh) * 2006-11-07 2008-05-14 华为技术有限公司 一种共存性无线通信系统中的信息传输方法及装置
CN101778435A (zh) * 2010-01-13 2010-07-14 北京邮电大学 一种异构无线网络中频谱资源的分配方法及装置
CN102917456A (zh) * 2011-08-02 2013-02-06 华为技术有限公司 一种通信方法、多模终端和基站及系统
CN103686746A (zh) * 2012-09-06 2014-03-26 华为技术有限公司 设备发现信号传输的方法、设备及基站

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3171642A4 *

Also Published As

Publication number Publication date
EP3171642B1 (en) 2019-06-19
US20170188294A1 (en) 2017-06-29
JP6437094B2 (ja) 2018-12-12
EP3171642A4 (en) 2017-08-16
KR20170094116A (ko) 2017-08-17
CN105491641A (zh) 2016-04-13
EP3171642A1 (en) 2017-05-24
KR101913051B1 (ko) 2018-10-29
CN105491641B (zh) 2020-02-07
JP2017529764A (ja) 2017-10-05
US10098058B2 (en) 2018-10-09

Similar Documents

Publication Publication Date Title
WO2016041415A1 (zh) 一种发现信号的传输方法、小区发现的方法及装置
KR102084871B1 (ko) 혼합된 간섭 관리를 위한 시스템들 및 방법들
EP2719216B1 (en) Signal quality measurements of a user equipment on a subset of radio resource elements
US10098003B2 (en) Access node, a communication device, respective method performed thereby for carrier hopping
JP6350836B2 (ja) 情報伝送方法、基地局、およびユーザ機器
US20200245228A1 (en) Implicit system information (si) content variation enabling soft combining
US20130265961A1 (en) Network Control
TWI540848B (zh) 無線通信裝置與方法
US9967809B2 (en) Method and apparatus for modified reference signal transmission for cell discovery
JP6872634B2 (ja) 協調セル決定方法及びネットワークデバイス
EP2984764B1 (en) Ue-based interference cancellation by assisting signaling via d2d
WO2013149527A1 (zh) 一种测量方法和装置
JP2016541170A (ja) 移動性管理方法、装置及びシステム
US10004084B2 (en) Methods and apparatuses for coordinating resource scheduling between wireless networks
CN109565698B (zh) 基于非授权载波的上行调度方法和装置
US20150215855A1 (en) Apparatus for cell specific reference signal transmission on lte small cell
WO2020029277A1 (zh) Fbe的数据传输方法、装置及存储介质
CN110612743B (zh) 用于移动性管理的方法和设备
US9374720B2 (en) Optimizing cooperation areas and cover shifts in cellular communications network systems
KR101837869B1 (ko) 전력 제어 방법, 사용자 장비 및 통신 시스템
WO2022237803A1 (zh) 通信方法以及相关联的装置、介质和芯片
WO2019200617A1 (zh) 通信方法、装置、设备及系统
CN106233770B (zh) 小区测量方法、装置和通信系统
CN113630899A (zh) 与同步传送的冲突避免

Legal Events

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

Ref document number: 15842646

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15327622

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2017507993

Country of ref document: JP

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2015842646

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015842646

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20177007221

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE