WO2017000263A1 - 一种参考信号发送方法及装置 - Google Patents

一种参考信号发送方法及装置 Download PDF

Info

Publication number
WO2017000263A1
WO2017000263A1 PCT/CN2015/083004 CN2015083004W WO2017000263A1 WO 2017000263 A1 WO2017000263 A1 WO 2017000263A1 CN 2015083004 W CN2015083004 W CN 2015083004W WO 2017000263 A1 WO2017000263 A1 WO 2017000263A1
Authority
WO
WIPO (PCT)
Prior art keywords
time domain
cell
synchronization signal
domain symbols
user equipment
Prior art date
Application number
PCT/CN2015/083004
Other languages
English (en)
French (fr)
Inventor
马瑞泽大卫
官磊
马莎
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/083004 priority Critical patent/WO2017000263A1/zh
Priority to CN201580074671.5A priority patent/CN107210879B/zh
Publication of WO2017000263A1 publication Critical patent/WO2017000263A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a reference signal transmitting method and apparatus.
  • the spectrum deployed by the serving cell of the Long Term Evolution (LTE) system is the licensed spectrum, and the licensed spectrum is the spectrum that can be used after being purchased. Since the unlicensed spectrum is a spectrum that can be used without being purchased, the operation is performed. It is desirable to deploy a secondary serving cell of the unlicensed spectrum in the LTE system, so that the secondary serving cell of the unlicensed spectrum and the serving cell of the licensed spectrum perform carrier aggregation to serve the user equipment (User Equipment, UE).
  • An LTE system in which a secondary serving cell of an unlicensed spectrum is deployed may be referred to as an Unlicensed LTE (U-LTE) system.
  • U-LTE Unlicensed LTE
  • the base station Before the base station sends a signal on the channel where the secondary serving cell is located, it is required to perform Clear Channel Assessment (CCA) on the channel where the secondary serving cell is located according to the Listen-Before-Talk (LBT) principle.
  • CCA Clear Channel Assessment
  • LBT Listen-Before-Talk
  • the base station cannot temporarily transmit a signal on the channel; until the channel is found to be idle, the base station can send a signal on the channel, or the base station needs to perform a random backoff for a period of time, only in the fallback
  • the channel is idle during the time before the signal can be sent on the channel.
  • the Discovery Reference Signal is usually found by the Extended Synchronization Signal (PSS), the Secondary Synchronization Signal (SSS), and the Cell-specific Reference Signal (CRS). )composition.
  • PSS Extended Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CRS Cell-specific Reference Signal
  • the base station performs CCA before the secondary serving cell sends the DRS, and finds that the channel of the base station to the UE is idle, the base station sends the DRS to the UE, but the base station may not currently have data to send to the UE.
  • the idle period of the (Orthogonal Frequency Division Multiplexing, OFDM) symbol, one OFDM symbol is about 70 microseconds long, and two to three OFDM symbols is 140 to 210 microseconds.
  • the wireless Fidelity (WI-FI) device or other carrier's U-LTE base station has a CCA window of about 10 microseconds, and during the idle period of 140 to 210 microseconds, other nearby WI-FI devices or The U-LTE base station of other operators starts to transmit information according to the CCA detection that the channel is idle.
  • the data scheduling is to occupy the time domain resources continuously. Since the idle time period is short and due to the LBT constraint, the neighboring WI-FI device or the U-LTE base station of other operators does not perform normal data scheduling at the current base station. Send a message.
  • the idle period between adjacent CRS symbols is energy-filled, and the padding signal may be a random signal or an existing reference signal.
  • performing energy filling results in a decrease in the utilization of unlicensed spectrum resources and affects the use of unlicensed spectrum resources by other devices.
  • Embodiments of the present invention provide a reference signal transmitting method and apparatus, which can accurately estimate RSSI and effectively improve utilization of spectrum resources.
  • a method for transmitting a reference signal including:
  • the first set of time domain symbols comprising a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal
  • the second set of time domain symbols Include a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in a time domain;
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first
  • the cell has data or/and the first reference signal and the second reference signal, and the first cell is a secondary serving cell of the unlicensed spectrum or a serving cell of the licensed spectrum.
  • the method before the sending the first set of time domain symbols and the second set of time domain symbols to a user equipment, the method further includes:
  • the method After the sending the first group of time domain symbols and the second group of time domain symbols to the user equipment, the method also includes:
  • the time domain symbol is an orthogonal frequency division multiplexing OFDM symbol.
  • a reference signal receiving method including:
  • the base station Receiving a first group of time domain symbols and a second group of time domain symbols sent by the base station, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal, the second group The time domain symbol includes a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first group of time domain symbols and the second group of time domain symbols are consecutive in a time domain;
  • the first bandwidth is smaller than the second bandwidth, and the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth, where the dormant state is the first a cell has no data transmission and has a first reference signal transmission, and the open state is that the first cell has data or/and the first reference signal and the second reference signal are transmitted, and the first cell is an unlicensed spectrum.
  • the secondary serving cell or the serving cell of the licensed spectrum is the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth
  • the determining that the first cell is in an open state includes:
  • determining that the first cell is in a dormant state includes:
  • the method before the receiving the first group of time domain symbols and the second group of time domain symbols sent by the base station, the method further includes:
  • the base station And receiving, by the base station, a first configuration message and a second configuration message, where the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of a first frequency point, where the second configuration message is used to notify the The user equipment configures a time window for the user equipment, where the first frequency point is a frequency point where the first cell is located.
  • the method further includes:
  • a base station including:
  • a processing unit configured to generate a first group of time domain symbols and a second group of time domain symbols, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal, where The two sets of time domain symbols include time domain symbols carrying cell specific reference signals, and all time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in time domain;
  • a sending unit configured to send the first group of time domain symbols and the second group of time domain symbols to a user equipment
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first
  • the cell has data or/and the first reference signal and the second reference signal, and the first cell is a secondary serving cell of the unlicensed spectrum or a serving cell of the licensed spectrum.
  • the processing unit is further configured to:
  • the sending unit is further configured to:
  • the sending unit is further configured to:
  • the time domain symbol is an orthogonal frequency division multiplexing OFDM symbol.
  • a user equipment including:
  • a receiving unit configured to receive a first group of time domain symbols and a second group of time domain symbols sent by the base station, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal,
  • the second set of time domain symbols includes a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in a time domain;
  • a processing unit configured to determine that the first cell is in an on state, and the primary synchronization signal and the secondary synchronization signal occupy a first bandwidth of the first group of time domain symbols
  • the first bandwidth is smaller than the second bandwidth, and the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth, where the dormant state is the first a cell has no data transmission and has a first reference signal transmission, and the open state is that the first cell has data or/and the first reference signal and the second reference signal are transmitted, and the first cell is an unlicensed spectrum.
  • the secondary serving cell or the serving cell of the licensed spectrum is the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth
  • the processing unit is specifically configured to:
  • the receiving unit is further configured to:
  • the base station And receiving, by the base station, a first configuration message and a second configuration message, where the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of a first frequency point, where the second configuration message is used to notify the The user equipment configures a time window for the user equipment, where the first frequency point is a frequency point where the first cell is located.
  • the processing unit is further configured to:
  • a base station including:
  • a processor configured to generate a first set of time domain symbols and a second set of time domain symbols, where the first set of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal, where The two sets of time domain symbols include time domain symbols carrying cell specific reference signals, and all time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in time domain;
  • a transmitter configured to send the first set of time domain symbols and the second set of time domain symbols to a user equipment
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first The cell has data or / and the first reference
  • the test signal and the second reference signal transmission, the first cell is a secondary serving cell of the unlicensed spectrum or a serving cell of the licensed spectrum.
  • the processor is further configured to:
  • the transmitter is further configured to:
  • any one of the first to the second implementation manners in a third implementation manner, is further configured to:
  • the time domain symbol is an orthogonal frequency division multiplexing OFDM symbol.
  • a user equipment including:
  • a receiver configured to receive a first group of time domain symbols and a second group of time domain symbols sent by the base station, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal,
  • the second set of time domain symbols includes a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in a time domain;
  • a processor configured to determine that the first cell is in an on state, and the primary synchronization signal and the secondary synchronization signal occupy a first bandwidth of the first set of time domain symbols
  • the first bandwidth is smaller than the second bandwidth, and the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth,
  • the dormant state is that the first cell has no data transmission and has a first reference signal transmission
  • the open state is that the first cell has data or/and the first reference signal and the second reference signal transmission
  • the A cell is a secondary serving cell of an unlicensed spectrum or a serving cell of a licensed spectrum.
  • the processor is specifically configured to:
  • the receiver is further configured to:
  • the base station And receiving, by the base station, a first configuration message and a second configuration message, where the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of a first frequency point, where the second configuration message is used to notify the The user equipment configures a time window for the user equipment, where the first frequency point is a frequency point where the first cell is located.
  • the processor is further configured to:
  • Embodiments of the present invention provide a reference signal transmitting method and apparatus.
  • energy filling is performed during an idle period between adjacent CRS symbols to transmit a reference signal.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols, or when the first cell is in the sleep state, the primary synchronization signal And the secondary synchronization signal is transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth being less than the second bandwidth, and the second bandwidth transmitting the at least two of the a primary synchronization signal and the secondary synchronization signal, thereby transmitting a primary synchronization signal through different bandwidths according to different states of the cell
  • the secondary synchronization signal can accurately estimate the RSSI and effectively improve the utilization of spectrum resources.
  • FIG. 1 is a schematic diagram of a reference signal transmission provided by the prior art
  • FIG. 2 is a schematic diagram of a time-frequency position of a reference signal according to the prior art
  • FIG. 3 is a flowchart of a method for sending a reference signal according to an embodiment of the present invention
  • FIG. 4 is a flowchart of another method for transmitting a reference signal according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another method for transmitting a reference signal according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the base station transmits data and reference signals to the user equipment through the OFDMA time-frequency resources.
  • the data and the reference signal are transmitted according to the scheduling information sent by the base station.
  • the base station sends a control channel, where the control channel can carry scheduling information of the uplink data channel or the downlink data channel, where the scheduling information includes The control information such as the resource allocation information and the modulation and coding mode, the user equipment performs the downlink data channel reception or the uplink data channel transmission according to the scheduling information carried in the control channel.
  • time-frequency resources are divided into OFDM in the time domain dimension
  • the OFDM subcarriers in the symbol and frequency domain dimensions the smallest resource granularity is the Resource Element (RE), that is, the time-frequency grid point representing one OFDM symbol in the time domain and one OFDM subcarrier in the frequency domain.
  • the base station scheduling user equipment usually performs the resource block pair (RBP) granularity.
  • RBP resource block pair
  • One resource block pair occupies the length of one subframe in the time domain, and the width of the 12 OFDM subcarriers in the frequency domain, one The subframe includes 14 OFDM symbols.
  • the user equipment In order to maintain data transmission, or perform cell selection, reselection or handover, the user equipment needs to perform synchronization, cell identification, and radio resource management (RRM) measurement with the base station according to the reference signal sent by the base station.
  • the synchronization is further divided into initial coarse synchronization and time-frequency tracking fine synchronization.
  • the initial coarse synchronization is completed according to the PSS and SSS sent by the base station, and the time-frequency tracking fine synchronization is completed by the CRS sent by the base station.
  • Radio resource management measurements include measurements such as RSRP, RSRQ, and RSSI, which are currently done through CRS. As shown in FIG.
  • the reference signal time-frequency position diagram, the time-frequency position of the reference signal of the PSS, SSS, and CRS in the resource block pair shown in FIG. 2, the CRS of an antenna port is shown in FIG. A CRS including 2 or 4 antenna ports, and each subframe of the CRS on the carrier in the LTE active state is transmitted; the PSS/SSS transmission period is 5 ms.
  • a DRS is introduced based on the cell switching mechanism, and the DRS is composed of PSS/SSS and CRS, and the period of the DRS is long, and can be configured to be 40/80/160 ms, that is, the DRS is extended by the period.
  • PSS/SSS and CRS are composed for cell identification and RRM measurement.
  • the embodiment of the present invention provides a reference signal sending method, which is applied to a base station, as shown in FIG. 3, and includes:
  • Step 101 Generate a first set of time domain symbols and a second set of time domain symbols.
  • the first set of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal
  • the second set of time domain symbols includes a time domain symbol carrying a cell specific reference signal
  • the first The group time domain symbols and all time domain symbols included in the second set of time domain symbols are contiguous in the time domain. All of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in the time domain, and the first set of time domain symbols may be discontinuous, the second set of time domains
  • the symbol may not be continuous, but the The set of time domain symbols consisting of the first set of time domain symbols and the second set of time domain symbols is continuous.
  • Step 102 Send the first set of time domain symbols and the second set of time domain symbols to a user equipment.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first
  • the cell has data or/and the first reference signal and the second reference signal, and the first cell is a secondary serving cell of the unlicensed spectrum or a serving cell of the licensed spectrum.
  • energy filling is performed during an idle period between adjacent CRS symbols to transmit a reference signal.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols, or when the first cell is in the sleep state, the primary synchronization signal And the secondary synchronization signal is transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth being less than the second bandwidth, and the second bandwidth transmitting the at least two of the The primary synchronization signal and the secondary synchronization signal, so that the primary synchronization signal and the secondary synchronization signal are transmitted through different bandwidths according to different states of the cell, can accurately estimate the RSSI, thereby effectively improving the utilization of the spectrum resources.
  • the embodiment of the present invention provides a reference signal receiving method, which is applied to a user equipment, as shown in FIG. 4, and includes:
  • Step 201 Receive a first group of time domain symbols and a second group of time domain symbols sent by the base station.
  • the first set of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal
  • the second set of time domain symbols includes a time domain symbol carrying a cell specific reference signal
  • Step 202 Determine that the first cell is in an open state, and the primary synchronization signal and the secondary synchronization signal occupy a first bandwidth of the first group of time domain symbols, or determine that the first cell is in a dormant state, and The primary synchronization signal and the secondary synchronization signal occupy a second bandwidth of the first set of time domain symbols.
  • the first bandwidth is smaller than the second bandwidth, and the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth, where the dormant state is the first a cell has no data transmission and has a first reference signal transmission, and the open state is that the first cell has data or/and the first reference signal and the second reference signal are transmitted, and the first cell is an unlicensed spectrum.
  • the secondary serving cell or the serving cell of the licensed spectrum is the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth
  • the present invention determines that the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols when the cell is in the on state. Or, when the first cell is in the dormant state, the primary synchronization signal and the secondary synchronization signal are transmitted in the second bandwidth of the first group of time domain symbols, where the first bandwidth is smaller than the second bandwidth, and the second bandwidth is within the second bandwidth.
  • An embodiment of the present invention provides a reference signal sending method, as shown in FIG. 5, including:
  • Step 301 The base station sends a first configuration message and a second configuration message to the user equipment.
  • the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of the first frequency point
  • the second configuration message is used to notify the user equipment to configure a time window for the user equipment, where the first The frequency point is the frequency point of the first cell.
  • Step 302 The user equipment receives the first configuration message and the second configuration message sent by the base station.
  • the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of the first frequency point
  • the second configuration message is used to notify the user equipment to configure a time window for the user equipment, where the first The frequency point is the frequency point of the first cell.
  • the UE accesses the serving cell from the licensed spectrum, where the serving cell is a cell that grants a carrier on the spectrum.
  • the UE receives the first configuration information sent by the base station by using the serving cell, and configures the first frequency point of the secondary serving cell by using the first configuration information.
  • the base station may notify the UE to perform RRM measurement on the frequency of the unlicensed spectrum by using RRC dedicated signaling, where the frequency point may be the frequency of the secondary serving cell. It can also be other frequency points of the serving cell.
  • the UE may further receive, by using the serving cell, second configuration information that is sent by the base station, and configure, by using the second configuration information, a time window of the first frequency point, where the length of the time window may be 6 milliseconds (ms), and the first If all cells on the frequency point can occupy the channel, they need to send their respective DRSs in the common time window for the UE to perform detection and RRM measurement.
  • the time window is a set of time intervals in which a period occurs, for example, a period of 80 ms, and a time window of a measurement gap of 6 ms appears in each period.
  • Step 303 The base station performs an idle channel detection CCA on a channel of the base station to the first cell of the user equipment.
  • Step 304 The base station generates a first set of time domain symbols and a second set of time domain symbols.
  • the first set of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal
  • the second set of time domain symbols includes a time domain symbol carrying a cell specific reference signal
  • Step 305 The base station sends the first group time domain symbol and the second group time domain symbol to the user equipment.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first
  • the cell has data or/and the first reference signal and the second reference signal, and the first cell is an auxiliary device of the unlicensed spectrum.
  • a cell or a serving cell that grants spectrum.
  • the first reference signal is a DRS
  • the second reference signal is another reference signal (Reference Signal, RS).
  • Step 306 The user equipment receives the first group of time domain symbols and the second group of time domain symbols sent by the base station.
  • the first set of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal
  • the second set of time domain symbols includes a time domain symbol carrying a cell specific reference signal
  • Step 307 The user equipment determines a status of the first cell.
  • the state of the first cell is an open state or a dormant state, where the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is that the first cell has data or/and The first reference signal and the second reference signal are transmitted.
  • the UE may receive the first indication message sent by the base station, receive the first indication message sent by the base station, determine, according to the first indication message, that the first cell is in an open state, and receive the sending by the base station. And the first indication message is determined, according to the first indication message, that the first cell is in a dormant state. For example by receiving indication information in a control channel on the serving cell.
  • the first bandwidth is smaller than the second bandwidth, and the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth, where the first cell is unauthorized.
  • Step 308 The user equipment performs synchronization and/or identification of the first cell according to the detected primary synchronization signal and the secondary synchronization signal.
  • the primary synchronization signal and the secondary synchronization signal occupy a first bandwidth of the first group of time domain symbols, and according to the detected primary synchronization signal and the secondary synchronization signal Performing synchronization and/or identification of the target cell
  • the synchronization signal performs synchronization and/or identification of the target cell.
  • Step 309 The user equipment performs radio resource management measurement on the first cell according to the detected cell-specific reference signal.
  • the first bandwidth is a narrowband bandwidth
  • the second bandwidth is a broadband bandwidth.
  • the primary synchronization signal and the secondary synchronization signal within the wideband bandwidth are frequency domain repeat replicas of the primary synchronization signal and the secondary synchronization signal within the narrowband bandwidth.
  • the narrowband bandwidth is a bandwidth of 6 resource blocks, and the transmitted PSS/SSS is a normal PSS/SSS; and the bandwidth of the carrier may be 20 MHz.
  • the first cell is in a dormant state, in order to satisfy the LBT principle on the unlicensed spectrum. That is, the transmitted signal should occupy at least 80% of the current carrier bandwidth, then the normal PSS/SSS needs to be extended to the entire carrier bandwidth.
  • the current narrowband transmitted PSS/SSS can be repeatedly extended in the frequency domain to at least the whole. 80% of the bandwidth may also be the frequency domain extended transmission of the SSS on the PSS symbol, and the frequency domain extended transmission of the PSS on the SSS symbol.
  • the PSS/SSS frequency domain is extended to ensure the LBT principle of the unlicensed spectrum is satisfied; when there is data transmission (such as the open state), the normal downlink data rate matching is maintained, And normal narrowband PSS/SSS transmission.
  • the primary synchronization signal and the secondary synchronization signal may be detected within a time window of the measurement gap.
  • the UE identifies the first cell and/or synchronizes the first cell according to the detected primary and secondary synchronization signals. And detecting the CRS of the first cell to perform RRM measurement on the first cell.
  • the time domain symbol of the PSS/SSS is continuous with the time domain symbol of the CRS, so as to prevent other neighboring nodes (WI-FI devices or U-LTE base stations) from starting in the idle gap between the current adjacent CRS symbols. Sending a signal causes the above RSSI overestimation problem.
  • the reference signal sending method according to the present invention is used in a wireless communication system, especially in a U-LTE system.
  • the mainstream deployment scenario is used by carrier aggregation of the serving cell on the licensed spectrum and the secondary serving cell on the unlicensed spectrum.
  • the serving cell and the secondary serving cell may be deployed in a common station, or may be a non-co-site deployment, and two There is an ideal return path between the service cells.
  • the present invention is not limited to the scenario of the above-mentioned carrier aggregation, and may also be deployed in a scenario where there is no ideal backhaul path between the two serving cells, for example, the backhaul delay is large, and the information cannot be quickly coordinated between the two serving cells.
  • a secondary serving cell that can be independently accessed may be deployed, that is, carrier aggregation with the serving cell is not required at this time.
  • a part of the time domain symbols may be intercepted from the original PSS/SSS and CRS to transmit the truncated PSS/SSS and CRS.
  • the PSS/SSS is still in symbol 0 and symbol 5 of subframe 0 or subframe 5 (the symbol order is ranked from 0)
  • the present invention only intercepts CRS symbols on one or both sides of the PSS/SSS, such as symbol 0 and/or symbol 7 of subframe 0 or subframe 5.
  • the specific PSS is located in the last symbol of the subframe 0 or the subframe 5, that is, the symbol 13, and The SSS is located in symbol 2 of subframe 1 or subframe 6.
  • the time domain symbol position of PSS/SSS unchanged, and ensure that there is a symbol CRS, that is, symbol 0 of subframe 1 or 6.
  • There is another time domain symbol between the symbols of the PSS/SSS that is, the symbol 1 of the subframe 1 or 6.
  • the symbol 1 There may be no CRS on the symbol 1, for example, the number of ports of the CRS is 1 or 2 (if the number of CRS ports is 4) , then there is also CRS) on the symbol 1, then the symbol 1 can be filled, such as filling an existing CRS or other reference signal or even a random signal.
  • the embodiment of the present invention provides a base station 40, as shown in FIG. 6, including:
  • the processing unit 401 is configured to generate a first group of time domain symbols and a second group of time domain symbols, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal,
  • the second set of time domain symbols includes a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in time domain;
  • the sending unit 402 is configured to send, to the user equipment, the first group of time domain symbols and the second group of time domain symbols,
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first
  • the cell has data or/and the first reference signal and the second reference signal, and the first cell is a secondary serving cell of the unlicensed spectrum or a serving cell of the licensed spectrum.
  • energy filling is performed during an idle period between adjacent CRS symbols to transmit a reference signal.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols, or when the first cell is in the sleep state, the primary synchronization signal And the secondary synchronization signal is transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth being less than the second bandwidth, and the second bandwidth transmitting the at least two of the The primary synchronization signal and the secondary synchronization signal, so that the primary synchronization signal and the secondary synchronization signal are transmitted through different bandwidths according to different states of the cell, can accurately estimate the RSSI, thereby effectively improving the utilization of the spectrum resources.
  • the processing unit 401 is further configured to:
  • the sending unit 402 is further configured to:
  • the time domain symbols are orthogonal frequency division multiplexed OFDM symbols.
  • An embodiment of the present invention provides a user equipment 50, as shown in FIG. 7, including:
  • the receiving unit 501 is configured to receive the first group of time domain symbols and the second group sent by the base station a time domain symbol, the first set of time domain symbols including a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal, the second set of time domain symbols including a time domain symbol carrying a cell specific reference signal, All of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in time domain;
  • the processing unit 502 is configured to determine that the first cell is in an on state, and the primary synchronization signal and the secondary synchronization signal occupy a first bandwidth of the first group of time domain symbols,
  • the first bandwidth is smaller than the second bandwidth, and the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth, where the dormant state is the first a cell has no data transmission and has a first reference signal transmission, and the open state is that the first cell has data or/and the first reference signal and the second reference signal are transmitted, and the first cell is an unlicensed spectrum.
  • the secondary serving cell or the serving cell of the licensed spectrum is the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths are transmitted in the second bandwidth
  • the present invention determines that the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols when the cell is in the on state. Or, when the first cell is in the dormant state, the primary synchronization signal and the secondary synchronization signal are transmitted in the second bandwidth of the first group of time domain symbols, where the first bandwidth is smaller than the second bandwidth, and the second bandwidth is within the second bandwidth.
  • the processing unit 502 is specifically configured to:
  • the receiving unit 501 is further configured to:
  • the base station And receiving, by the base station, a first configuration message and a second configuration message, where the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of a first frequency point, where the second configuration message is used to notify the The user equipment configures a time window for the user equipment, where the first frequency point is a frequency point where the first cell is located.
  • the processing unit 502 is further configured to:
  • An embodiment of the present invention provides a base station 60, as shown in FIG. 8, including:
  • the processor 601 is configured to generate a first group of time domain symbols and a second group of time domain symbols, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal,
  • the second set of time domain symbols includes a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in time domain;
  • a transmitter 602 configured to send, to the user equipment, the first set of time domain symbols and the second set of time domain symbols,
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a first bandwidth of the first group of time domain symbols, or when the first cell is in a dormant state.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first set of time domain symbols, the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the dormant state is that the first cell has no data transmission and has a first reference signal transmission, and the open state is the first
  • the cell has data or/and the first reference signal and the second reference signal, and the first cell is a secondary serving cell of the unlicensed spectrum or a serving cell of the licensed spectrum.
  • energy filling is performed during an idle period between adjacent CRS symbols to transmit a reference signal.
  • the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols, Or, when the first cell is in a dormant state, the primary synchronization signal and the secondary synchronization signal are transmitted in a second bandwidth of the first group of time domain symbols, where the first bandwidth is smaller than the second bandwidth, and the second bandwidth is Transmitting the primary synchronization signal and the secondary synchronization signal transmitted in at least two of the first bandwidths, so that the primary synchronization signal and the secondary synchronization signal are transmitted through different bandwidths according to different states of the cell, and the RSSI can be accurately estimated, thereby effectively improving Utilization of spectrum resources.
  • the processor 601 is further configured to:
  • the transmitter 602 is also used to:
  • the transmitter 602 is also used to:
  • the time domain symbols are orthogonal frequency division multiplexed OFDM symbols.
  • An embodiment of the present invention provides a user equipment 70, as shown in FIG. 9, including:
  • the receiver 701 is configured to receive a first group of time domain symbols and a second group of time domain symbols sent by the base station, where the first group of time domain symbols includes a time domain symbol carrying a primary synchronization signal and a time domain symbol carrying a secondary synchronization signal.
  • the second set of time domain symbols includes a time domain symbol carrying a cell-specific reference signal, and all of the time domain symbols included in the first set of time domain symbols and the second set of time domain symbols are consecutive in time domain ;
  • the processor 702 is configured to determine that the first cell is in an on state, and the primary synchronization signal and the secondary synchronization signal occupy a first bandwidth of the first group of time domain symbols,
  • the first bandwidth is smaller than the second bandwidth, and at least two are transmitted in the second bandwidth.
  • the primary synchronization signal and the secondary synchronization signal transmitted in the first bandwidth, the sleep state is that the first cell has no data transmission and has a first reference signal transmission
  • the open state is the A cell has data or/and the first reference signal and a second reference signal
  • the first cell is a secondary serving cell of an unlicensed spectrum or a serving cell of a licensed spectrum.
  • the present invention determines that the primary synchronization signal and the secondary synchronization signal are transmitted in the first bandwidth of the first group of time domain symbols when the cell is in the on state. Or, when the first cell is in the dormant state, the primary synchronization signal and the secondary synchronization signal are transmitted in the second bandwidth of the first group of time domain symbols, where the first bandwidth is smaller than the second bandwidth, and the second bandwidth is within the second bandwidth.
  • the processor 702 is specifically configured to:
  • the receiver 701 is further configured to:
  • the base station And receiving, by the base station, a first configuration message and a second configuration message, where the first configuration message is used to indicate that the user equipment configures a radio resource management measurement of a first frequency point, where the second configuration message is used to notify the The user equipment configures a time window for the user equipment, where the first frequency point is a frequency point where the first cell is located.
  • the processor 702 is further configured to:
  • the disclosed apparatus and method may be implemented in other manners.
  • 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 separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to 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 be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Landscapes

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

Abstract

本发明的实施例提供一种参考信号发送方法及装置，涉及无线通信领域，能够准确估计RSSI，有效提高频谱资源的利用率。生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，向用户设备发送所述第一组时域符号和所述第二组时域符号，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输。该参考信号发送方法及装置用于传输参考信号。

Description

一种参考信号发送方法及装置 技术领域
本发明涉及无线通信领域，尤其涉及一种参考信号发送方法及装置。
背景技术
目前，长期演进(Long Term Evolution，LTE)***的服务小区所部署的频谱都是授权频谱，授权频谱是需要购买后才能使用的频谱，由于非授权频谱是不需要购买都可以使用的频谱，运营商希望在LTE***中部署非授权频谱的辅服务小区，使得非授权频谱的辅服务小区与授权频谱的服务小区进行载波聚合来服务用户设备(User Equipment，UE)。部署了非授权频谱的辅服务小区的LTE***可以称为非授权长期演进(Unlicensed LTE，U-LTE)***。
基站在辅服务小区所在信道上发送信号之前，需要根据先检测后发送(Listen-Before-Talk，LBT)原则对该辅服务小区所在的信道进行空闲信道检测(Clear Channel Assessment，CCA)，若检测到接收功率超过某阈值则该基站暂时不能在该信道上发送信号；直到发现该信道空闲，基站才可以在该信道上发送信号，或者，基站还需要进行随机回退一段时间，只有在回退时间内该信道都是空闲的，才可以在该信道上发送信号。
通常发现参考信号(Discovery Reference Signal，DRS)由拉长周期的主同步信号(Primary Synchronization Signal，PSS)、辅同步信号(Secondary Synchronization Signal，SSS)和小区特定参考信号(Cell-specific Reference Signal，CRS)组成。
示例的，如图1所示，假设基站在辅服务小区发送DRS前执行CCA，发现基站到UE的信道空闲，则基站向UE发送DRS，但可能基站当前没有数据需要向UE发送。在没有数据调度时，基于DRS当前的资源位置，两个CRS之间会有2到3个正交频分复用 (Orthogonal Frequency Division Multiplexing，OFDM)符号的空闲时段，一个OFDM符号大约时长为70微秒，2到3个OFDM符号就是140到210微秒。而无线保真(Wireless Fidelity，WI-FI)设备或其他运营商的U-LTE基站的CCA窗口为10微秒左右，在140到210微秒的空闲时段内，其他临近的WI-FI设备或其他运营商的U-LTE基站根据CCA检测认为信道空闲而开始发送信息。数据调度是连续占用时域资源的，由于所述空闲时段较短且由于LBT约束，而临近的WI-FI设备或其他运营商的U-LTE基站在当前基站进行正常的数据调度时是不会发送信息的。这样导致将其他临近的WI-FI设备或其他运营商的U-LTE基站发送的信息视为干扰，导致接收信号强度指示(Received Signal Strength Indicator，RSSI)高估，参考信号接收质量(RS Received Quality，RSRQ)低估。
现有技术中，在没有数据调度而发送DRS时，将相邻的CRS符号之间的空闲时段进行能量填充，填充信号可以是随机信号或已有参考信号等。但是，进行能量填充导致非授权频谱资源的利用率降低，且影响其他设备使用非授权频谱资源。
因此，如何准确估计RSSI，提高频谱资源的利用率是一个亟待解决的问题。
发明内容
本发明的实施例提供一种参考信号发送方法及装置，能够准确估计RSSI，有效提高频谱资源的利用率。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，提供一种参考信号发送方法，包括：
生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
向用户设备发送所述第一组时域符号和所述第二组时域符号，
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
结合第一方面，在第一种可实现方式中，在所述向用户设备发送所述第一组时域符号和所述第二组时域符号之前，所述方法还包括：
对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
结合第一方面或第一种可实现方式，在第二种可实现方式中，在所述向用户设备发送所述第一组时域符号和所述第二组时域符号之后，所述方法还包括：
向所述用户设备发送第一指示消息，所述第一指示消息用于指示所述用户设备确定第一小区为开启态或休眠态。
结合第一方面、第一种至第二种可实现方式中任意一项，在第三种可实现方式中，在所述对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA之前，所述方法还包括：
向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
结合第一方面、第一种至第三种可实现方式中任意一项，在第四种可实现方式中，所述时域符号是正交频分复用OFDM符号。
第二方面，提供一种参考信号接收方法，包括：
接收基站发送的第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
结合第二方面，在第一种可实现方式中，
所述确定所述第一小区为开启态包括：
接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态，
或，所述确定所述第一小区为休眠态包括：
接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
结合第二方面或第一种可实现方式，在第二种可实现方式中，在所述接收基站发送的第一组时域符号和第二组时域符号之前，所述方法还包括：
接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
结合第二种可实现方式，在第三种可实现方式中，所述方法还包括：
在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
第三方面，提供一种基站，包括：
处理单元，用于生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
发送单元，用于向用户设备发送所述第一组时域符号和所述第二组时域符号，
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
结合第三方面，在第一种可实现方式中，所述处理单元还用于：
对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
结合第三方面或第一种可实现方式，在第二种可实现方式中，所述发送单元还用于：
向所述用户设备发送第一指示消息，所述第一指示消息用于指 示所述用户设备确定第一小区为开启态或休眠态。
结合第三方面、第一种至第二种可实现方式中任意一项，在第三种可实现方式中，所述发送单元还用于：
向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
结合第三方面、第一种至第三种可实现方式中任意一项，在第四种可实现方式中，所述时域符号是正交频分复用OFDM符号。
第四方面，提供一种用户设备，包括：
接收单元，用于接收基站发送的第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
处理单元，用于确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
结合第四方面，在第一种可实现方式中，所述处理单元具体用于：
接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态；
或，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
结合第四方面或第一种可实现方式，在第二种可实现方式中，所述接收单元还用于：
接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
结合第二种可实现方式，在第三种可实现方式中，所述处理单元还用于：
在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
第五方面，提供一种基站，包括：
处理器，用于生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
发射器，用于向用户设备发送所述第一组时域符号和所述第二组时域符号，
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参 考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
结合第五方面，在第一种可实现方式中，所述处理器还用于：
对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
结合第五方面或第一种可实现方式，在第二种可实现方式中，所述发射器还用于：
向所述用户设备发送第一指示消息，所述第一指示消息用于指示所述用户设备确定第一小区为开启态或休眠态。
结合第五方面、第一种至第二种可实现方式中任意一项，在第三种可实现方式中，所述发射器还用于：
向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
结合第五方面、第一种至第三种可实现方式中任意一项，在第四种可实现方式中，所述时域符号是正交频分复用OFDM符号。
第六方面，提供一种用户设备，包括：
接收器，用于接收基站发送的第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
处理器，用于确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述 休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
结合第六方面，在第一种可实现方式中，所述处理器具体用于：
接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态；
或，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
结合第六方面或第一种可实现方式，在第二种可实现方式中，所述接收器还用于：
接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
结合第二种可实现方式，在第三种可实现方式中，所述处理器还用于：
在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
本发明的实施例提供一种参考信号发送方法及装置。相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在发送参考信号时，当小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输，或，当第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽发送主同步信号 和辅同步信号能够准确估计RSSI，有效提高频谱资源的利用率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术提供一种一种参考信号发送示意图；
图2为现有技术提供一种参考信号时频位置示意图；
图3为本发明实施例提供一种参考信号发送方法流程图；
图4为本发明实施例提供另一种参考信号发送方法流程图；
图5为本发明实施例提供又一种参考信号发送方法流程图；
图6为本发明实施例提供一种基站结构示意图；
图7为本发明实施例提供一种用户设备结构示意图；
图8为本发明实施例提供另一种基站结构示意图；
图9为本发明实施例提供另一种用户设备结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
LTE***中基站通过OFDMA时频资源向用户设备传输数据和参考信号。用户设备向基站传输数据和参考信号时，需要根据基站发送的调度信息传输数据和参考信号，例如基站发送控制信道，该控制信道可以承载上行数据信道或下行数据信道的调度信息，该调度信息包括资源分配信息和调制编码方式等控制信息，用户设备根据所述控制信道中承载的调度信息来进行下行数据信道的接收或上行数据信道的发送。其中，时频资源被划分成时间域维度上的OFDM 符号和频率域维度上的OFDM子载波，最小的资源粒度为资源元素(Resource Element，RE)，即表示时间域上的一个OFDM符号和频率域上的一个OFDM子载波的时频格点。基站调度用户设备通常以资源块对(RBP，Resource Block Pair)为粒度来进行的，一个资源块对在时间域上占用一个子帧的长度，频率域上占12个OFDM子载波的宽度，一个子帧包括14个OFDM符号。
用户设备为了维持数据传输，或者进行小区选择，重选或切换，用户设备需要根据基站发送的参考信号与基站进行同步、小区识别和无线资源管理(Radio Resource Management，RRM)测量。其中，同步又分为初始粗同步和时频跟踪精同步，初始粗同步是根据基站发送的PSS和SSS来完成的，时频跟踪精同步是通过基站发送的CRS来完成的。无线资源管理测量包括RSRP，RSRQ和RSSI等测量，当前是通过CRS来完成的。如图2所示，参考信号时频位置示意图，图2中所示一个资源块对内PSS、SSS和CRS等参考信号的时频位置，图2中所示为一个天线端口的CRS，还可以包括2或4个天线端口的CRS，且CRS在LTE激活态的载波上的每个子帧都会被发送；PSS/SSS发送周期为5ms。需要说明的是，LTE***中基于小区开关机制又引入了DRS，该DRS由PSS/SSS和CRS组成，且该DRS的周期较长，可以配置为40/80/160ms，即DRS由周期拉长的PSS/SSS和CRS组成，用于小区识别和RRM测量。
本发明实施例提供一种参考信号发送方法，应用于基站，如图3所示，包括：
步骤101、生成第一组时域符号和第二组时域符号。
所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的。所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的为所述第一组时域符号可能不连续，所述第二组时域符号可能不连续，但是所述 第一组时域符号和所述第二组时域符号组成的时域符号组是连续的。
步骤102、向用户设备发送所述第一组时域符号和所述第二组时域符号。
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在发送参考信号时，当小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输，或，当第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽发送主同步信号和辅同步信号能够准确估计RSSI，有效提高频谱资源的利用率。
本发明实施例提供一种参考信号接收方法，应用于用户设备，如图4所示，包括：
步骤201、接收基站发送的第一组时域符号和第二组时域符号。
所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的。
步骤202、确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽。
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在接收接收基站发送的第一组时域符号和第二组时域符号后，确定小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输，或，第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽传输主同步信号和辅同步信号，能够准确估计RSSI，有效提高频谱资源的利用率。
本发明实施例提供一种参考信号发送方法，如图5所示，包括：
步骤301、基站向用户设备发送第一配置消息和第二配置消息。
所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
步骤302、用户设备接收基站发送的第一配置消息和第二配置消息。
所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
具体的，UE从授权频谱上接入服务小区，该服务小区为授权频谱上的载波的小区。UE通过该服务小区接收基站发送的第一配置信息，通过该第一配置信息配置辅服务小区的第一频点。在配置辅服务小区的第一频点之前或之后，基站可以通过RRC专有信令通知UE进行非授权频谱上的频点的RRM测量，该频点可以为所述辅服务小区的频点，也可以是服务小区的其他频点。
UE还可以通过该服务小区接收基站发送的第二配置信息，通过该第二配置信息配置所述第一频点的时间窗，该时间窗的长度可以为6毫秒(ms)，且该第一频点上的所有小区如果可以占用信道，都需要在所述公共的时间窗中发送各自的DRS供UE进行检测和RRM测量。该时间窗是周期出现的一组时间间隔，比如80ms为周期，每个周期出现6个ms的测量间隙的时间窗。
步骤303、基站对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
步骤304、基站生成第一组时域符号和第二组时域符号。
所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的。
步骤305、基站向所述用户设备发送所述第一组时域符号和所述第二组时域符号。
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服 务小区或授权频谱的服务小区。需要说明的是，第一参考信号为DRS，第二参考信号为其他参考信号(Reference Signal，RS)。
步骤306、用户设备接收基站发送的第一组时域符号和第二组时域符号。
所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的。
步骤307、用户设备确定第一小区的状态。
所述第一小区的状态为开启态或休眠态，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输。
需要说明的是，UE可以接收基站发送的第一指示消息，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。例如通过接收服务小区上的控制信道中的指示信息。
确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
步骤308、用户设备根据检测到的所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，并根据检测到的所述主同步信号和所述辅同步信号进行所述目标小区的同步和/或识别
确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽，并根据检测到的所述主同步信号和所述辅同步信号进行所述目标小区的同步和/或识别。
步骤309、用户设备根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量。
需要说明的是，第一带宽为窄带带宽，第二带宽为宽带带宽。所述宽带带宽内的主同步信号和辅同步信号为窄带带宽内的主同步信号和辅同步信号的频域重复副本。
例如，窄带带宽为6个资源块的宽带，传输的PSS/SSS为正常的PSS/SSS；而该载波的带宽可能是20MHz，若第一小区处于休眠态，为了满足非授权频谱上的LBT原则，即发送信号要至少占用当前载波带宽的80％，那么正常的PSS/SSS就需要被扩展到整个载波带宽上，例如可以将当前窄带发送的PSS/SSS分别在频域重复的扩展到至少整个带宽的80％，也可以是PSS符号上进行SSS的频域扩展传输，SSS符号上进行PSS的频域扩展传输。从而可以保证在没有数据传输时(比如休眠态)，PSS/SSS频域扩展来保证满足非授权频谱的LBT原则；在有数据传输时(比如开启态)，保持正常的下行数据的速率匹配，和正常的窄带PSS/SSS发送。
UE配置第一配置信息和第二配置信息之后，就可以在测量间隙的时间窗内，检测主同步信号和辅同步信号。UE根据检测到的主辅同步信号识别第一小区和/或同步所述第一小区。且检测该第一小区的CRS，来对该第一小区进行RRM测量。其中，PSS/SSS所在时域符号与CRS所在时域符号是连续的，这样才能避免其他临近结点(WI-FI设备或U-LTE基站)在当前相邻CRS符号之间的空闲间隙中开始发送信号，而导致上述RSSI高估问题。
需要说明的是，本发明所述的参考信号发送方法用于无线通信***，尤其用于U-LTE***。主流部署场景是通过将授权频谱上的服务小区和非授权频谱上的辅服务小区进行载波聚合来使用。其中，服务小区与辅服务小区可以共站部署，也可以是非共站部署，两个 服务小区之间有理想的回传路径。但本发明也不限于上述载波聚合的场景，还可以部署在两个服务小区之间没有理想回传路径的场景，比如回传延迟较大，导致两个服务小区之间无法快速的协调信息。此外，还可以部署可以独立接入的辅服务小区，即此时不需要与服务小区进行载波聚合。
示例的，对于第一小区为频分双工(Frequency Division Duplexing，FDD)的情况，可以从原来的PSS/SSS和CRS中在时域上截取一部分时域符号来传输截短的PSS/SSS和CRS。例如，保持当前的参考信号所在的符号索引不变，PSS/SSS还是在子帧0或子帧5的符号6和符号5(符号排序从0排起)，而由于CRS所在时域符号的不连续性，本发明只截取PSS/SSS一侧或两侧的CRS符号，比如子帧0或子帧5的符号4和/或符号7。
对于第一小区为时分双工(Time Division Duplexing，TDD)的情况，由于PSS/SSS的符号本来就不连续，具体的PSS位于子帧0或子帧5的最后一个符号，即符号13，而SSS位于子帧1或子帧6的符号2。保持PSS/SSS的时域符号位置不变，之间保证有一个符号的CRS，即子帧1或6的符号0。PSS/SSS的符号之间还存在另一个时域符号，即子帧1或6的符号1，该符号1上有可能没有CRS，比如CRS的端口数为1或2(如果CRS端口数为4，则该符号1上也存在CRS)，则可以将该符号1进行填充，比如填充现有的CRS或其他参考信号甚至可以是随机信号。
本发明实施例提供一种基站40，如图6所示，包括：
处理单元401，用于生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
发送单元402，用于向用户设备发送所述第一组时域符号和所述第二组时域符号，
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在发送参考信号时，当小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输，或，当第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽发送主同步信号和辅同步信号能够准确估计RSSI，有效提高频谱资源的利用率。
所述处理单元401还用于：
对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
所述发送单元402还用于：
向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
所述时域符号是正交频分复用OFDM符号。
本发明实施例提供一种用户设备50，如图7所示，包括：
接收单元501，用于接收基站发送的第一组时域符号和第二组 时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
处理单元502，用于确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在接收接收基站发送的第一组时域符号和第二组时域符号后，确定小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输，或，第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽传输主同步信号和辅同步信号，能够准确估计RSSI，有效提高频谱资源的利用率。
所述处理单元502具体用于：
接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态；
或，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
所述接收单元501还用于：
接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
所述处理单元502还用于：
在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
本发明实施例提供一种基站60，如图8所示，包括：
处理器601，用于生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
发射器602，用于向用户设备发送所述第一组时域符号和所述第二组时域符号，
其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在发送参考信号时，当小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输， 或，当第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽发送主同步信号和辅同步信号能够准确估计RSSI，有效提高频谱资源的利用率。
所述处理器601还用于：
对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
所述发射器602还用于：
向所述用户设备发送第一指示消息，所述第一指示消息用于指示所述用户设备确定第一小区为开启态或休眠态。
所述发射器602还用于：
向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
所述时域符号是正交频分复用OFDM符号。
本发明实施例提供一种用户设备70，如图9所示，包括：
接收器701，用于接收基站发送的第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
处理器702，用于确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两 个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
相对于现有技术，在相邻的CRS符号之间的空闲时段进行能量填充来发送参考信号。本发明在接收接收基站发送的第一组时域符号和第二组时域符号后，确定小区为开启态时，主同步信号和辅同步信号在第一组时域符号的第一带宽内传输，或，第一小区为休眠态时，主同步信号和辅同步信号在第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，从而根据小区的不同状态，通过不同的带宽传输主同步信号和辅同步信号，能够准确估计RSSI，有效提高频谱资源的利用率。
所述处理器702具体用于：
接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态；
或，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
所述接收器701还用于：
接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
所述处理器702还用于：
在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
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，所揭露的装置及方法，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***，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包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、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以所述权利要求的保护范围为准。

Claims (27)

  1. 一种参考信号发送方法，其特征在于，包括：
    生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
    向用户设备发送所述第一组时域符号和所述第二组时域符号，
    其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
  2. 根据权利要求1所述的方法，其特征在于，在所述向用户设备发送所述第一组时域符号和所述第二组时域符号之前，所述方法还包括：
    对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
  3. 根据权利要求1或2所述的方法，其特征在于，在所述向用户设备发送所述第一组时域符号和所述第二组时域符号之后，所述方法还包括：
    向所述用户设备发送第一指示消息，所述第一指示消息用于指示所述用户设备确定第一小区为开启态或休眠态。
  4. 根据权利要求1-3任意一项权利要求所述的方法，其特征在于，在所述对所述基站到所述用户设备的所述第一小区的信道执行空 闲信道检测CCA之前，所述方法还包括：
    向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
  5. 根据权利要求1-4任意一项权利要求所述的方法，其特征在于，所述时域符号是正交频分复用OFDM符号。
  6. 一种参考信号接收方法，其特征在于，包括：
    接收基站发送的第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
    确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
    或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
    所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
  7. 根据权利要求6所述的方法，其特征在于，
    所述确定所述第一小区为开启态包括：
    接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态，
    或，所述确定所述第一小区为休眠态包括：
    接收所述基站发送的第一指示消息，根据所述第一指示消息确定 所述第一小区为休眠态。
  8. 根据权利要求6或7所述的方法，其特征在于，在所述接收基站发送的第一组时域符号和第二组时域符号之前，所述方法还包括：
    接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
  10. 一种基站，其特征在于，包括：
    处理单元，用于生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
    发送单元，用于向用户设备发送所述第一组时域符号和所述第二组时域符号，
    其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权 频谱的服务小区。
  11. 根据权利要求10所述的基站，其特征在于，所述处理单元还用于：
    对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
  12. 根据权利要求10或11所述的基站，其特征在于，所述发送单元还用于：
    向所述用户设备发送第一指示消息，所述第一指示消息用于指示所述用户设备确定第一小区为开启态或休眠态。
  13. 根据权利要求10-12任意一项权利要求所述的基站，其特征在于，所述发送单元还用于：
    向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
  14. 根据权利要求10-13任意一项权利要求所述的基站，其特征在于，所述时域符号是正交频分复用OFDM符号。
  15. 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第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
    处理单元，用于确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
    或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
    所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠 态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
  16. 根据权利要求15所述的用户设备，其特征在于，所述处理单元具体用于：
    接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态；
    或，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
  17. 根据权利要求15或16所述的用户设备，其特征在于，所述接收单元还用于：
    接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
  18. 根据权利要求17所述的用户设备，其特征在于，所述处理单元还用于：
    在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
  19. 一种基站，其特征在于，包括：
    处理器，用于生成第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
    发射器，用于向用户设备发送所述第一组时域符号和所述第二组 时域符号，
    其中，当第一小区为开启态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第一带宽内传输，或，当所述第一小区为休眠态时，所述主同步信号和所述辅同步信号在所述第一组时域符号的第二带宽内传输，所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
  20. 根据权利要求19所述的基站，其特征在于，所述处理器还用于：
    对所述基站到所述用户设备的所述第一小区的信道执行空闲信道检测CCA。
  21. 根据权利要求19或20所述的基站，其特征在于，所述发射器还用于：
    向所述用户设备发送第一指示消息，所述第一指示消息用于指示所述用户设备确定第一小区为开启态或休眠态。
  22. 根据权利要求19-21任意一项权利要求所述的基站，其特征在于，所述发射器还用于：
    向所述用户设备发送第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区的所在的频点。
  23. 根据权利要求19-22任意一项权利要求所述的基站，其特征在于，所述时域符号是正交频分复用OFDM符号。
  24. 一种用户设备，其特征在于，包括：
    接收器，用于接收基站发送的第一组时域符号和第二组时域符号，所述第一组时域符号包括承载主同步信号的时域符号和承载辅同 步信号的时域符号，所述第二组时域符号包括承载小区特定参考信号的时域符号，所述第一组时域符号和所述第二组时域符号包括的所有时域符号在时域上是连续的；
    处理器，用于确定第一小区为开启态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第一带宽，
    或，确定所述第一小区为休眠态，且所述主同步信号和所述辅同步信号占用所述第一组时域符号的第二带宽；
    所述第一带宽小于所述第二带宽，所述第二带宽内传输至少两个所述第一带宽内传输的所述主同步信号和所述辅同步信号，所述休眠态为所述第一小区无数据传输且有第一参考信号传输，所述开启态为所述第一小区有数据或/和所述第一参考信号以及第二参考信号传输，所述第一小区为非授权频谱的辅服务小区或授权频谱的服务小区。
  25. 根据权利要求24所述的用户设备，其特征在于，所述处理器具体用于：
    接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为开启态；
    或，接收所述基站发送的第一指示消息，根据所述第一指示消息确定所述第一小区为休眠态。
  26. 根据权利要求24或25所述的用户设备，其特征在于，所述接收器还用于：
    接收所述基站发送的第一配置消息和第二配置消息，所述第一配置消息用于指示所述用户设备配置第一频点的无线资源管理测量，所述第二配置消息用于通知所述用户设备为所述用户设备配置时间窗，所述第一频点为所述第一小区所在的频点。
  27. 根据权利要求26所述的用户设备，其特征在于，所述处理器还用于：
    在所述时间窗内检测所述小区特定参考信号、所述主同步信号和所述辅同步信号，并根据所述检测到的小区特定参考信号对所述第一 小区进行无线资源管理测量，并根据所述主同步信号和所述辅同步信号进行所述第一小区的同步和/或识别。
PCT/CN2015/083004 2015-06-30 2015-06-30 一种参考信号发送方法及装置 WO2017000263A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2015/083004 WO2017000263A1 (zh) 2015-06-30 2015-06-30 一种参考信号发送方法及装置
CN201580074671.5A CN107210879B (zh) 2015-06-30 2015-06-30 一种参考信号发送方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/083004 WO2017000263A1 (zh) 2015-06-30 2015-06-30 一种参考信号发送方法及装置

Publications (1)

Publication Number Publication Date
WO2017000263A1 true WO2017000263A1 (zh) 2017-01-05

Family

ID=57607450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/083004 WO2017000263A1 (zh) 2015-06-30 2015-06-30 一种参考信号发送方法及装置

Country Status (2)

Country Link
CN (1) CN107210879B (zh)
WO (1) WO2017000263A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019095439A1 (zh) * 2017-11-17 2019-05-23 Oppo广东移动通信有限公司 接收信号强度指示测量方法和终端设备
CN111970101A (zh) * 2018-01-05 2020-11-20 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN113133124A (zh) * 2019-12-31 2021-07-16 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111615191A (zh) * 2019-02-22 2020-09-01 中兴通讯股份有限公司 一种控制方法、装置及计算机可读存储介质
CN115150240B (zh) * 2022-06-27 2023-07-04 芯象半导体科技(北京)有限公司 一种基于NB-IoT***的时频同步的方法和装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483455A (zh) * 2008-01-07 2009-07-15 大唐移动通信设备有限公司 一种在物理资源块中***专用参考信号的方法和装置
CN102480342A (zh) * 2010-11-25 2012-05-30 普天信息技术研究院有限公司 一种传输参考信号的方法和***
CN102957654A (zh) * 2011-08-29 2013-03-06 中兴通讯股份有限公司 一种参考信号的传输方法及装置
US20140314048A1 (en) * 2012-01-30 2014-10-23 Lg Electronics Inc. Connection establishment method and apparatus for mtc ue

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013166720A1 (en) * 2012-05-11 2013-11-14 Renesas Mobile Corporation System and method for reference signal transmission to avoid collision
WO2014017765A1 (ko) * 2012-07-27 2014-01-30 엘지전자 주식회사 하향링크 동기 수행 방법 및 단말

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483455A (zh) * 2008-01-07 2009-07-15 大唐移动通信设备有限公司 一种在物理资源块中***专用参考信号的方法和装置
CN102480342A (zh) * 2010-11-25 2012-05-30 普天信息技术研究院有限公司 一种传输参考信号的方法和***
CN102957654A (zh) * 2011-08-29 2013-03-06 中兴通讯股份有限公司 一种参考信号的传输方法及装置
US20140314048A1 (en) * 2012-01-30 2014-10-23 Lg Electronics Inc. Connection establishment method and apparatus for mtc ue

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019095439A1 (zh) * 2017-11-17 2019-05-23 Oppo广东移动通信有限公司 接收信号强度指示测量方法和终端设备
CN111970101A (zh) * 2018-01-05 2020-11-20 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN111970101B (zh) * 2018-01-05 2022-07-05 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN113133124A (zh) * 2019-12-31 2021-07-16 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN113133124B (zh) * 2019-12-31 2022-11-01 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置

Also Published As

Publication number Publication date
CN107210879B (zh) 2019-10-25
CN107210879A (zh) 2017-09-26

Similar Documents

Publication Publication Date Title
US11153928B2 (en) Terminal apparatus, base station apparatus, communication method, and integrated circuit
CN108781362B (zh) 终端装置以及基站装置
US10574279B2 (en) Method for transmitting reference signal in cell that uses unlicensed frequency band and device
US10362602B2 (en) Air channel detection method and node device
JP6671372B2 (ja) 端末装置および通信方法
US10306637B2 (en) Radio base station and user terminal
US9603084B2 (en) Method and apparatus for measuring radio resource management, and method and apparatus for signalling signal to measure radio resource management
US10291374B2 (en) Reference signal detection method and receiving method, user equipment, and base station
US10230505B2 (en) Systems and methods for carrier aggregation deployment and organization in unlicensed bands
WO2016186077A1 (ja) 端末装置
US10728787B2 (en) Devices and method for measurement of wireless conditions of frequency bands
CN108370536B (zh) 网络节点、无线装置、方法和计算机程序
CN109923890A (zh) 测量方法、终端设备和网络设备
KR101861977B1 (ko) 무선 신호 측정 방법 및 디바이스
WO2017000263A1 (zh) 一种参考信号发送方法及装置
TW201334440A (zh) 進行小區參考信號干擾消除的方法
US20150280881A1 (en) Control channel configuration for stand-alone new carrier type
US20190320460A1 (en) Signal Transmission Method, Signal Transmission Control Method, User Equipment, and Base Station
EP3028495A1 (en) Method and apparatus for cell identification for further enhanced non-ca based icic for lte

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: 15896794

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15896794

Country of ref document: EP

Kind code of ref document: A1