WO2018126456A1 - 一种测量方法、基站及终端 - Google Patents

一种测量方法、基站及终端 Download PDF

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Publication number
WO2018126456A1
WO2018126456A1 PCT/CN2017/070485 CN2017070485W WO2018126456A1 WO 2018126456 A1 WO2018126456 A1 WO 2018126456A1 CN 2017070485 W CN2017070485 W CN 2017070485W WO 2018126456 A1 WO2018126456 A1 WO 2018126456A1
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WIPO (PCT)
Prior art keywords
measurement
narrow bandwidth
terminal
bandwidth
base station
Prior art date
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PCT/CN2017/070485
Other languages
English (en)
French (fr)
Inventor
杨宁
许华
Original Assignee
广东欧珀移动通信有限公司
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 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2017/070485 priority Critical patent/WO2018126456A1/zh
Priority to CN201780081706.7A priority patent/CN110178422B/zh
Priority to AU2017391230A priority patent/AU2017391230B2/en
Priority to RU2019124507A priority patent/RU2733901C1/ru
Priority to CA3053261A priority patent/CA3053261C/en
Priority to US16/476,195 priority patent/US11026113B2/en
Priority to EP17890822.4A priority patent/EP3565340B1/en
Priority to PCT/CN2017/083076 priority patent/WO2018126574A1/zh
Priority to SG11201907279SA priority patent/SG11201907279SA/en
Priority to KR1020197022564A priority patent/KR102364114B1/ko
Priority to JP2019536940A priority patent/JP6982081B2/ja
Priority to TW106146418A priority patent/TW201826821A/zh
Publication of WO2018126456A1 publication Critical patent/WO2018126456A1/zh
Priority to ZA2019/05190A priority patent/ZA201905190B/en
Priority to US17/244,546 priority patent/US11711712B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • 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
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a measurement method, a base station, and a terminal.
  • a terminal receives a downlink signal over the entire system bandwidth.
  • the downlink signal includes a physical downlink control channel (PDCCH) and a downlink common reference signal, such as a cell-specific reference signal (CRS) and a channel state information reference signal (Channel State Information Reference Signals, CSI-RS).
  • the system bandwidth supported by the LTE system is 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz. The typical and more widely used system bandwidths are 20MHz and 10MHz.
  • the downlink channel corresponds to 100 physical resource blocks (PRBs) and 50 PRBs, respectively.
  • PRBs physical resource blocks
  • the terminal will always blindly check the PDCCH on the entire downlink system bandwidth, which will result in a large power consumption of the terminal.
  • the bandwidth of the carrier may be very wide, for example, it can reach 200 MHz.
  • the terminal still receives the PDCCH over the full bandwidth as in the LTE system, the fourth generation mobile communication technology (5-Generation, 4G) system, the power consumption of the terminal will be very high.
  • the downlink signal can be demodulated at 1.4 MHz, that is, 6 PRB bandwidths.
  • a terminal needs to measure channel state information (CSI) of a downlink channel and feed back to the base station.
  • the base station will use the CSI fed back by the terminal as an important basis for scheduling downlink data.
  • the measurement of the CSI of the downlink channel by the terminal is generally performed by measuring a downlink reference signal such as a CRS or a CSI-RS. Since the two downlink reference signals are transmitted by the base station over the entire system bandwidth, it is difficult to obtain an accurate downlink channel CSI. Therefore, it is necessary to solve the problem that the terminal operating on a narrow bandwidth measures the CSI of the downlink channel.
  • the embodiments of the present invention provide a measurement method, a base station, and a terminal, which enable the terminal to flexibly switch between a narrow bandwidth and a system bandwidth, and implement downlink channel CSI measurement while reducing terminal power consumption.
  • a first aspect of the embodiments of the present invention provides a measurement method, including:
  • the base station sends a handover message of the narrow bandwidth reception mode to the terminal, instructing the terminal to switch to the specified narrow bandwidth to receive the information;
  • the base station schedules the terminal to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the measuring method further includes:
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the base station Scheduling the terminal to switch to at least two different measurement narrow bandwidths to measure downlink reference signals, including:
  • the base station configures the terminal to measure a measurement parameter of the downlink reference signal, where the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the period in the period Measuring, by the narrow bandwidth, the first time period information of the downlink reference signal, the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth during the period, the measurement The parameter is sent to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and again The length of time to enter the narrow bandwidth receiving mode;
  • the terminal scheduling, according to the measurement parameter, the terminal to sequentially switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal.
  • a trigger signal on the narrow-bandwidth physical downlink control channel where the triggering signal is used to trigger the terminal to switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter to measure downlink Reference signal.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and the physical downlink control by using the narrow bandwidth when the measurement parameter is sent to the terminal Channel indicating a configuration of the measurement parameter of the terminal;
  • the base station instructs the terminal to perform measurement using another configured measurement parameter by using the narrow bandwidth physical downlink control channel.
  • the base station Scheduling the terminal to switch to at least two different measurement narrow bandwidths to measure downlink reference signals, including:
  • the base station And transmitting, by the base station, the first downlink control information on the narrow downlink physical downlink control channel, where the first downlink control information includes the bandwidth information of the first measurement narrow bandwidth and the start of measuring the first measurement narrow bandwidth a time and an end time; scheduling the terminal to switch to the first measurement narrow bandwidth to measure a downlink reference signal;
  • the base station After the terminal measures the narrow bandwidth of the first measurement and switches back to the narrow bandwidth, the base station sends second downlink control information on the narrow downlink physical downlink control channel, where the second downlink control information is used. And including a bandwidth information of the second measurement narrow bandwidth and a start time and an end time of measuring the second measurement narrow bandwidth; and scheduling, by the terminal, to switch to the second measurement narrow bandwidth to measure a downlink reference signal.
  • the base station configures a corresponding measurement narrow bandwidth index for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate that the terminal is to be switched to a narrow measurement.
  • Bandwidth information for bandwidth.
  • the measuring method further includes:
  • the receiving station Receiving the channel state information of the downlink channel reported by the terminal, where the channel state information of the downlink channel is calculated by the terminal according to a preset algorithm, and the measurement result of the at least two different measurement narrow bandwidths is calculated; or, the receiving station The measurement result reported by the terminal for the at least two measured narrow bandwidths, Calculating channel state information of the downlink channel according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • a second aspect of the embodiments of the present invention provides a measurement method, including:
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the measuring method further includes:
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the at least two different measurement narrow bandwidths include a first measurement narrow bandwidth and a second measurement narrow bandwidth
  • the channel state information of the downlink channel needs to be measured, according to the The scheduling of the base station sequentially switches to at least two different measurement narrow bandwidths to measure the downlink reference signal, including:
  • the measurement parameter used by the terminal to measure the downlink reference signal where the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the period
  • the first measurement narrow bandwidth measures the first time period information of the downlink reference signal
  • the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth in the period Sending the measurement parameter to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a first measurement narrow bandwidth measurement downlink reference signal, and switching to a second measurement narrow bandwidth measurement downlink reference signal And the length of time to enter the narrow bandwidth receiving mode again;
  • the method before measuring the downlink reference signal by sequentially switching to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter, the method further includes:
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when receiving the measurement parameter, determining, by using an indication of the narrow bandwidth physical downlink control channel The configuration of the measurement parameters;
  • the base station needs to modify the currently used measurement parameter, receive information that the base station sends through the narrow bandwidth physical downlink control channel, indicating that the terminal uses another configured measurement parameter to perform measurement.
  • the at least two different measurement narrow bandwidths include a first measurement narrow bandwidth and a second measurement narrow bandwidth
  • the channel state information of the downlink channel needs to be measured, according to the The scheduling of the base station sequentially switches to at least two different measurement narrow bandwidths to measure the downlink reference signal, including:
  • first downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, where the first downlink control information includes bandwidth information of the first measurement narrow bandwidth and measuring the first measurement a start time and an end time of the narrow bandwidth; switching to the first measurement narrow bandwidth to measure the downlink reference signal;
  • Second downlink control information sent by the base station on the physical downlink control channel of the narrow bandwidth, where the second downlink control information includes The second measurement narrow bandwidth bandwidth information and the start time and end time of measuring the second measurement narrow bandwidth; and switching to the second measurement narrow bandwidth to measure the downlink reference signal.
  • the measuring method further includes:
  • the base station And reporting the channel state information of the downlink channel to the base station, where the channel state information of the downlink channel is calculated by the terminal according to a preset algorithm, the measurement result of the at least two different measurement narrow bandwidths Obtaining; or reporting, to the base station, a measurement result of the at least two measured narrow bandwidths, so that the base station calculates channel state information of the downlink channel according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • a third aspect of the embodiments of the present invention provides a base station, including:
  • a sending unit configured to send a handover message of the narrow bandwidth receiving mode to the terminal, to instruct the terminal to switch to the specified narrow bandwidth to receive information
  • a scheduling unit configured to: when the channel state information of the downlink channel needs to be measured, the base station schedules the terminal to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the sending unit is further configured to send downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the scheduling unit is specifically configured to:
  • the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the first period in the period Measure a narrow bandwidth to measure first time period information of the downlink reference signal, and use, in the period, the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth, and use the measurement parameter Sending to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and entering again The duration of the narrow bandwidth reception mode;
  • the terminal scheduling, according to the measurement parameter, the terminal to sequentially switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal.
  • scheduling according to the measurement parameter, the terminal sequentially switches to Before the downlink measurement signal is measured on the first measurement narrow bandwidth and the second measurement narrow bandwidth, the sending unit is further configured to send a trigger signal on the narrow bandwidth physical downlink control channel, where the trigger signal is used And triggering, by the terminal, to switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter to measure a downlink reference signal.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when the sending unit sends the measurement parameter to the terminal, the scheduling unit further And indicating, by using the narrow bandwidth physical downlink control channel, a configuration of the measurement parameter of the terminal;
  • the scheduling unit is further configured to instruct the terminal to perform measurement by using another configured measurement parameter by using the narrow bandwidth physical downlink control channel.
  • the scheduling unit is specifically configured to:
  • the second downlink control information is sent on the physical downlink control channel of the narrow bandwidth, where the second downlink control information includes the The second measuring the bandwidth information of the narrow bandwidth and measuring the start time and the end time of the narrow bandwidth of the second measurement; scheduling the terminal to switch to measure the downlink reference signal on the second measurement narrow bandwidth.
  • the scheduling unit is further configured to configure a corresponding measurement narrow bandwidth index for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate that the terminal is to be switched The measured bandwidth information of narrow bandwidth.
  • the scheduling unit is further configured to receive channel state information of a downlink channel that is reported by the terminal, where channel state information of the downlink channel is used by the terminal according to a preset algorithm to the at least two And measuring the measurement result of the narrow bandwidth by the terminal; or receiving the measurement result of the at least two measurement narrow bandwidths reported by the terminal, and calculating channel state information of the downlink channel according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • a fourth aspect of the present invention provides a base station, including:
  • a processor configured to call the program code stored in the memory, and performs the following operations:
  • the terminal When it is required to measure channel state information of the downlink channel, the terminal is scheduled to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the processor is further configured to send, by using the transceiver, downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the processor is specifically configured to:
  • the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the first period in the period Measure a first time period information of the downlink reference signal measured by the narrow bandwidth, and second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth during the period, by using the transceiver Transmitting the measurement parameter to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a first measurement narrow bandwidth measurement downlink reference signal, and switching to a second measurement narrow bandwidth measurement downlink reference The length of time the signal enters the narrow bandwidth receive mode again;
  • the terminal scheduling, according to the measurement parameter, the terminal to sequentially switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal.
  • the processor further uses, before scheduling, according to the measurement parameter, that the terminal sequentially switches to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal. to:
  • the downlink reference signal is measured over a narrow bandwidth.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and the processor is further configured to: when sending the measurement parameter to the terminal, pass the The physical downlink control channel of the narrow bandwidth indicates the configuration of the measurement parameter of the terminal;
  • the processor is further configured to instruct the terminal to perform measurement by using another configured measurement parameter by using the narrow bandwidth physical downlink control channel.
  • the processor is specifically configured to:
  • the base station After the terminal measures the narrow bandwidth of the first measurement and switches back to the narrow bandwidth, the base station sends second downlink control information on the narrow downlink physical downlink control channel, where the second downlink control information is used. And including a bandwidth information of the second measurement narrow bandwidth and a start time and an end time of measuring the second measurement narrow bandwidth; and scheduling, by the terminal, to switch to the second measurement narrow bandwidth to measure a downlink reference signal.
  • the processor is further configured to configure a corresponding measurement narrow bandwidth index for the at least two measurement narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate that the terminal is to be switched The measured bandwidth information of narrow bandwidth.
  • the processor is further configured to receive, by using the transceiver, channel state information of a downlink channel that is reported by the terminal, where channel state information of the downlink channel is determined by the terminal according to a preset algorithm. Calculating the measurement result of the at least two different measurement narrow bandwidths; or the processor is further configured to receive, by the transceiver, the at least two measurements reported by the terminal The measurement result of the narrow bandwidth is calculated according to a preset algorithm, and channel state information of the downlink channel is calculated according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • a fifth aspect of the embodiments of the present invention provides a terminal, including:
  • a receiving unit configured to receive a handover message of a narrow bandwidth receiving mode sent by the base station
  • a switching unit configured to switch to receive information according to the switching message to a specified narrow bandwidth
  • the switching unit is further configured to: when the channel state information of the downlink channel needs to be measured, sequentially switch to at least two different measurement narrow bandwidths to measure the downlink reference signal according to the scheduling of the base station;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the receiving unit is further configured to receive downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the receiving unit is specifically configured to:
  • the measurement parameter used by the terminal to measure the downlink reference signal where the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the period
  • the first measurement narrow bandwidth measures the first time period information of the downlink reference signal
  • the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth in the period Sending the measurement parameter to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a first measurement narrow bandwidth measurement downlink reference signal, and switching to a second measurement narrow bandwidth measurement downlink reference signal And the length of time to enter the narrow bandwidth receiving mode again;
  • the switching unit is specifically configured to:
  • the switching unit sequentially switches to the measurement parameter according to the measurement parameter.
  • the receiving unit is further configured to:
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when receiving the measurement parameter, the switching unit is further configured to pass the narrow bandwidth physical Determining, by the indication of the downlink control channel, the configuration of the measurement parameter;
  • the receiving unit is further configured to receive, by the base station, the measurement parameter sent by using the narrow bandwidth physical downlink control channel, indicating that the terminal uses another configuration, to perform measurement. Information.
  • the receiving unit is specifically configured to:
  • first downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, where the first downlink control information includes bandwidth information of the first measurement narrow bandwidth and measuring the first measurement Start time and end time of narrow bandwidth;
  • the switching unit is specifically configured to switch to the first measurement narrow bandwidth to measure a downlink reference signal
  • the receiving unit is further configured to receive second downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, where the narrow bandwidth is switched back after the measurement of the first measurement narrow bandwidth, where
  • the second downlink control information includes the bandwidth information of the second measurement narrow bandwidth and the start time and the end time of measuring the second measurement narrow bandwidth;
  • the switching unit is further configured to switch to the second measurement narrow bandwidth measurement Downlink reference signal.
  • the receiving unit is further configured to receive, by the base station, a corresponding measurement narrow bandwidth index configured for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate The bandwidth information of the narrow bandwidth that the terminal is to switch to.
  • the switching unit is further configured to report, to the base station, channel state information of a downlink channel, where channel state information of the downlink channel is used by the terminal according to a preset algorithm to the at least two Calculating the measurement results of the narrow bandwidths of the different measurements; or reporting the measurement results of the at least two measurement narrow bandwidths to the base station, so that the base station calculates the calculation according to the preset algorithm.
  • Channel state information of the line channel
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • a sixth aspect of the embodiments of the present invention provides a terminal, including:
  • a processor a memory, a transmitter, a receiver, and a bus, the processor, the memory, the transmitter, and the receiver being connected by a bus, wherein the transmitter is for transmitting a signal, and the receiver is for receiving a signal,
  • the transmitter and the receiver are respectively independently set or integrated, the memory is for storing a set of program codes, and the processor is used to call the program code stored in the memory to perform the following operations:
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the processor is further configured to receive, by using the receiver, downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the processor is specifically configured to receive the base station by using the receiver.
  • Configuring the terminal to measure a measurement parameter of the downlink reference signal where the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the first period in the period
  • the processor is further configured to: before the downlink reference signal is measured by sequentially switching to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter, by using the And receiving, by the receiver, a trigger signal sent by the base station on the narrow downlink physical downlink control channel, where the trigger signal is used to trigger the terminal to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when receiving the measurement parameter, the processor is further configured to pass the narrow bandwidth physical Determining, by the indication of the downlink control channel, the configuration of the measurement parameter;
  • the base station needs to modify the measurement parameter currently used, receiving, by the receiver, information that is sent by the base station by using the narrow bandwidth physical downlink control channel, indicating that the terminal uses another configured measurement parameter to perform measurement. .
  • the processor is specifically configured to:
  • first downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, where the first downlink control information includes bandwidth information and measurement of the first measurement narrow bandwidth Determining, by the first measurement, a start time and an end time of the narrow bandwidth; switching to measuring the downlink reference signal on the first measurement narrow bandwidth;
  • the receiver Switching back to the narrow bandwidth after measuring the first measurement narrow bandwidth, receiving, by the receiver, second downlink control information that is sent by the base station on the narrow bandwidth physical downlink control channel, the second downlink
  • the control information includes the second measurement narrow bandwidth bandwidth information and a start time and an end time of measuring the second measurement narrow bandwidth; and switching to the second measurement narrow bandwidth to measure the downlink reference signal.
  • the processor is further configured to: by using the receiving, the base station, a corresponding measurement narrow bandwidth index configured for the at least two measured narrow bandwidth bandwidth information, the measurement narrow bandwidth index A bandwidth information for measuring a narrow bandwidth that the terminal is to switch to.
  • the processor is further configured to send, by the transmitter, the base station And reporting the channel state information of the downlink channel, where the channel state information of the downlink channel is calculated by the terminal according to a preset algorithm, the measurement result of the at least two different measurement narrow bandwidths; or reporting to the base station Determining at least two measurement results of the narrow bandwidth, so that the base station calculates channel state information of the downlink channel according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • a seventh aspect of the embodiments of the present invention provides a computer storage medium, the computer storage medium comprising a set of program code for performing the method according to any one of the first aspects of the embodiments of the present invention.
  • the eighth aspect of the embodiments of the present invention provides a computer storage medium, comprising a program code, for performing the method according to any implementation of the second aspect of the embodiments of the present invention.
  • the base station configures a handover message to indicate a narrow bandwidth reception mode that the terminal switches to.
  • the terminal can receive signals on a narrow bandwidth smaller than the system bandwidth, so that the terminal does not need to detect a larger system bandwidth, and the terminal can be lowered.
  • the configuration in the narrow-bandwidth PDCCH includes only the UE-specific search space and the fixed control channel unit aggregation level, which can reduce the amount of information detected by the terminal, thereby further reducing the terminal power consumption;
  • the base station may schedule the terminal to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal, and then calculate the CSI of the downlink channel by the terminal or the base station according to the result measured on the narrow bandwidth of different measurements. Finally, the balance between terminal power consumption and system performance is achieved, ensuring that the CSI of the downlink channel is obtained by measurement, and a reference is provided for scheduling downlink data.
  • FIG. 1 is a schematic structural diagram of a communication system in an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a first embodiment of a measuring method according to the present invention.
  • FIG. 3 is a schematic flow chart of a second embodiment of a measuring method according to the present invention.
  • FIG. 4 is a schematic diagram of measuring a downlink reference signal by using the method shown in FIG. 3 according to an embodiment of the present invention
  • FIG. 5 is a schematic flow chart of a third embodiment of a measuring method according to the present invention.
  • FIG. 6 is a schematic flow chart of a fourth embodiment of a measuring method according to the present invention.
  • FIG. 7 is a schematic diagram of measuring a downlink reference signal by using the method shown in FIG. 6 according to an embodiment of the present invention.
  • FIG. 8 is a schematic flow chart of a fifth embodiment of a measuring method according to the present invention.
  • FIG. 9 is a schematic flow chart of a sixth embodiment of a measuring method according to the present invention.
  • FIG. 10 is a schematic flow chart of a seventh embodiment of a measuring method according to the present invention.
  • FIG. 11 is a schematic flow chart of an eighth embodiment of a measuring method according to the present invention.
  • FIG. 12 is a schematic structural diagram of a first embodiment of a base station according to the present invention.
  • FIG. 13 is a schematic structural diagram of a second embodiment of a base station according to the present invention.
  • FIG. 14 is a schematic structural diagram of a first embodiment of a terminal according to the present invention.
  • Figure 15 is a schematic diagram showing the composition of a second embodiment of the terminal of the present invention.
  • FIG. 1 is a schematic structural diagram of a communication system in an embodiment of the present invention.
  • the base station and the at least one terminal may be included, and the terminal may also be called a user equipment (User Equipment, UE).
  • UE User Equipment
  • the base station may be an evolved Node B (eNB), a Node B (Node B, NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), and a home base station. (for example, Home evolved NodeB, or Home Node B, HNB), BaseBand Unit (BBU), and the like. It may also be referred to by those skilled in the art as a base transceiver station, a wireless base station, a wireless transceiver, a transceiver function, a Base Station Subsystem (BSS), or some other suitable terminology.
  • eNB evolved Node B
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • HNB BaseBand Unit
  • BSS Base Station Subsystem
  • the PDCCH may carry the scheduling downlink control information, and may specifically include a transmission format, a resource allocation, an uplink scheduling permission, a power control, and an uplink retransmission information.
  • the downlink data of the service may be transmitted to the UE, and the retransmission feedback of the terminal is received.
  • the base station can schedule the terminal to work in the narrow bandwidth working mode, and can also schedule the terminal to switch between the narrow bandwidth and the system bandwidth. When the CSI of the downlink channel needs to be measured, the scheduling terminal switches to measure the narrow bandwidth measurement downlink reference signal.
  • the terminal may include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, and a video.
  • a device a digital audio player (eg, an MP3 player), a camera, a game console, or any other device of similar functionality.
  • a terminal may also be referred to by a person skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile device.
  • Terminal wireless terminal, remote terminal, handheld device, user agent, mobile client, client or some other suitable terminology. It can receive control information configured by the base station and time-frequency domain resources scheduled by the base station to perform uplink service data. And retransmit the transmission of feedback information. It is also possible to switch between narrow bandwidth and narrow bandwidth measurement according to the scheduling of the base station. The measurement of the CSI of the downlink channel is implemented.
  • the terminal can be configured to operate on a narrow bandwidth smaller than the system bandwidth.
  • the measurement method of the present invention will be described in detail below with reference to FIG.
  • the measurement method includes the following steps:
  • the base station sends a handover message of the narrow bandwidth reception mode to the terminal, and instructs the terminal to switch to the specified narrow bandwidth to receive information.
  • the handover message may include a time indicating that the terminal enters the narrow bandwidth reception mode and a position of the narrow bandwidth on the frequency band when entering the narrow bandwidth reception mode.
  • the time of entering the narrow bandwidth receiving mode may include a start time of entering the narrow bandwidth receiving mode, and after receiving the switching message, the terminal enters a narrow bandwidth receiving mode at a specified starting time until receiving The base station sends a message to stop the narrow bandwidth reception mode to switch to the system bandwidth; or it can switch from the current narrow bandwidth to other narrow bandwidth or system bandwidth when receiving the message sent by the base station to switch to other narrow bandwidth or system bandwidth.
  • the time of entering the narrow bandwidth receiving mode may include the time of entering the narrow bandwidth receiving mode, or may also include the ending time of entering the narrow bandwidth receiving mode, and the terminal may enter the narrow bandwidth receiving at the specified starting time. Mode, switching back to the system bandwidth reception information at the specified termination time.
  • the base station may indicate, by using high layer signaling, such as Radio Resource Control (RRC), or physical layer signaling, such as DCI, that the terminal switches to a mode that only receives narrow bandwidth.
  • RRC Radio Resource Control
  • the base station can indicate the specific moment when the terminal narrowband reception mode starts, and the specific location of the narrow bandwidth in the frequency band. In this way, the terminal can switch to the specified narrow bandwidth to receive information according to the handover message.
  • the terminal In the narrow bandwidth reception mode, the terminal can retune its own RF bandwidth to a frequency domain width that is only received by the receiving system indicating the terminal, that is, a specified narrow bandwidth.
  • the terminal will tune its own radio unit to the frequency band position of the narrow bandwidth indicated by the system. PRB on.
  • the terminal can only receive signals located on the 6 PRBs. Due to the reduction in the receiving RF bandwidth, the terminal can obtain the effect of power saving.
  • the terminal can detect signals without using a wide system bandwidth, but only needs to receive signals and detection signals on a narrow bandwidth smaller than the system bandwidth, thereby reducing the workload of the terminal, reducing the power consumption of the terminal, and improving the terminal receiving signals. effectiveness.
  • the downlink signal can be demodulated at 1.4 MHz, that is, 6 PRB bandwidths.
  • MTC Machine Type Communications
  • the downlink bandwidth becomes smaller, the power consumption of the terminal is saved.
  • the function of the terminal is subject to a relatively large limitation.
  • the width of the narrow bandwidth in the embodiment of the present invention is smaller than the width of the system bandwidth. That is, the narrow bandwidth in the embodiment of the present invention refers to the width in the frequency domain smaller than the system bandwidth. It is a different concept from the 1.4MHz bandwidth in existing 4G systems.
  • the typical system bandwidth of the existing 4G system is 10 MHz and 20 MHz.
  • the narrow bandwidth in the embodiment of the present invention may be a bandwidth of less than 10 MHz such as 2 MHz and 5 MHz; when the system bandwidth is 20 MHz, The narrow bandwidth in the embodiment of the present invention may be a bandwidth of less than 20 MHz such as 5 MHz, 10 MHz, 12 MHz, or the like.
  • the narrow bandwidth in the embodiment of the present invention may also be a bandwidth less than 1.4 MHz such as 0.6 MHz.
  • the narrow bandwidth can also be less than the bandwidth of the system bandwidth in a 5G system.
  • the power consumption of the terminal is mainly embodied in two aspects.
  • the terminal detects the signal on the entire system bandwidth.
  • the terminal performs blind detection on the PDCCH, and the blind detection of the PDCCH includes detecting different aggregation levels of the control channel unit, such as 2 4, 8 and different DCI lengths, etc.
  • the terminal detected DCI contains both DCI for a single terminal, needs to be detected in the UE-specific search space, and also contains DCI for multiple terminals, which needs to be detected in the common search space.
  • the downlink control information for the terminal may also be sent in the physical downlink control channel located on the narrow bandwidth.
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the PDCCH used by the base station to schedule the terminal is located on the narrow bandwidth indicated by the base station.
  • a PDCCH located on a narrow bandwidth may carry DCI for a single different terminal without DCI for all terminals located on a narrow bandwidth; or, a PDCCH located on a narrow bandwidth only Contains UE-specific search space, not There is a public search space.
  • the control channel unit aggregation level may be fixed. For example, when the base station configures the narrow bandwidth reception mode to the terminal, the terminal may be assigned its control channel unit aggregation level.
  • the PDCCH includes only the UE-specific search space and the fixed control channel unit aggregation level, the amount of information that the terminal needs to detect when receiving the PDCCH located on the narrow bandwidth can be reduced, so that the power consumption of the terminal can be further reduced.
  • the base station schedules the terminal to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal.
  • width of the at least two different measurement narrow bandwidths is less than the width of the system bandwidth.
  • the narrow bandwidth and the at least two different measurement narrow bandwidths are respectively located on different frequency bands, and may be partially overlapped or completely independent.
  • the present invention is not limited thereto, and the sum of the at least two different measurement narrow bandwidths may be a system.
  • the bandwidth may also be a part of the system bandwidth, and the embodiment of the present invention is also not limited in any way.
  • the base station may instruct the terminal to measure the downlink reference signal at a specified time or periodically to other narrow bandwidths that are located at different frequency positions, that is, to measure the narrow bandwidth, and the terminal may A narrow band CSI is formed by measuring a downlink reference signal located within a narrow bandwidth of measurement.
  • the base station may configure the terminal to use the measured narrowband CSI to form the CSI feedback of the downlink channel to the base station; or the base station configuration terminal may directly feed back the measured narrowband CSI to the base station, and then the base station calculates the downlink channel according to the at least two narrowband CSIs.
  • CSI Provide reference for the base station to schedule downlink data. Achieve a balance between terminal power consumption and system performance.
  • one measurement narrow bandwidth can also be used for measurement.
  • the accuracy of the measurement results is high.
  • FIG. 3 is a schematic flowchart of a second embodiment of a measurement method according to the present invention.
  • the method includes the following steps:
  • the base station sends a handover message of the narrow bandwidth reception mode to the terminal, and instructs the terminal to switch to the specified narrow bandwidth to receive information.
  • the base station configures the terminal to measure a measurement parameter of the downlink reference signal, and send the measurement parameter to the terminal.
  • the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and a first period in which the terminal is used to measure the downlink reference signal in the first measurement narrow bandwidth.
  • the period includes the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and entering the narrow bandwidth receiving mode again.
  • the length of time includes the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and entering the narrow bandwidth receiving mode again.
  • the terminal is scheduled to switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal according to the measurement parameter.
  • FIG. 4 is a schematic diagram of measuring a downlink reference signal by using the method shown in FIG. 3 according to an embodiment of the present invention, where a base station may be configured to measure a period of a downlink reference signal and measure a downlink reference signal on each measured narrow bandwidth in a period.
  • Time period information For example, T1 to T1+L are a complete period, T3 to T4 are periods for measuring the downlink reference signal on the measurement narrow bandwidth 1, and T5 to T6 are periods for measuring the downlink reference signal on the measurement narrow bandwidth 2.
  • the base station can schedule the terminal to switch to these two measurement narrow bandwidth measurements.
  • Downlink reference signal the base station can also configure time information of the terminal in a narrow bandwidth.
  • the base station may pre-configure the terminal to be in a narrowband reception mode at times T1 to T2; and tune to the measurement narrow bandwidth 1 to measure the downlink reference signal at time T3 to T4; and tune at time T5 to T6.
  • the downlink reference signal is measured on the measurement narrow bandwidth 2; it returns to the narrow bandwidth reception mode at the time of T1+L ⁇ T2+L.
  • the time T2 to T3 is a time interval reserved for the terminal to be tuned from the narrow bandwidth to the measurement narrow bandwidth 1
  • the time T5 to T6 is the time interval reserved for the terminal to tune from the measurement narrow bandwidth 1 to the measurement narrow bandwidth 2
  • T6 ⁇ T1+L is the time left for the terminal to tune back to narrow bandwidth from measuring narrow bandwidth 2.
  • L is the length of the entire measurement period.
  • the measurement narrow bandwidth 1 and the measurement narrow bandwidth 2 are both located on the system bandwidth.
  • the embodiment of the present invention adopts two methods for measuring a narrow bandwidth for measurement, and those skilled in the art should understand that when measuring a narrow bandwidth of three or more, the same manner can be adopted in the above manner. Make measurements.
  • the terminal may start to downlink according to the period when entering the narrow bandwidth mode. Measurement of the CSI of the channel. The signaling overhead of the base station can be saved.
  • the terminal may not immediately perform measurement according to the measurement parameter after entering the narrow bandwidth reception mode, but may wait for the trigger of the base station.
  • steps S501-S502 are the same as steps S301-S302 of FIG. 3, and steps S504 and S303 are the same.
  • steps S504 and S303 are the same.
  • step S504 It also includes the following steps:
  • the triggering signal is used to trigger the terminal to switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter to measure a downlink reference signal.
  • the base station can use the signal on the PDCCH of the narrow bandwidth, such as several bits in the DCI, to trigger the terminal to start measurement, and the terminal starts to start measurement as shown in FIG. 4 after receiving the trigger signal.
  • the signal on the PDCCH of the narrow bandwidth such as several bits in the DCI
  • the flexibility of the base station scheduling terminal measurement can be improved.
  • the measurement parameters configured by the base station for the terminal include at least two different configurations, and the narrow bandwidth is adopted when the measurement parameter is sent to the terminal.
  • the physical downlink control channel indicates a configuration of the measurement parameter of the terminal;
  • the base station may instruct the terminal to perform measurement using another configured measurement parameter by using the narrow bandwidth physical downlink control channel.
  • the base station pre-configures three sets of parameters of different configurations, and the base station first uses the narrow bandwidth PDCCH to trigger the terminal to start measuring according to the parameters of the first set configuration; at a later time, the base station can reuse the narrow bandwidth PDCCH to indicate the terminal adopting.
  • the parameters of the second or third set of configurations begin to measure.
  • FIG. 6 is a schematic flowchart of a fourth embodiment of a measurement method according to the present invention.
  • the method includes the following steps:
  • the base station sends a handover message of the narrow bandwidth receiving mode to the terminal, and instructs the terminal to switch to the specified narrow bandwidth to receive information.
  • the base station sends the first downlink control information on the narrow downlink physical downlink control channel, and the terminal is scheduled to switch to the first measurement narrow bandwidth to measure the downlink reference signal.
  • the first downlink control information includes bandwidth information of the first measurement narrow bandwidth and A start time and an end time of the first measurement narrow bandwidth are measured.
  • the base station sends second downlink control information on the physical downlink control channel of the narrow bandwidth, and schedules the terminal to switch to The second measurement measures a downlink reference signal on a narrow bandwidth.
  • the second downlink control information includes bandwidth information of the second measurement narrow bandwidth and a start time and an end time of measuring the second measurement narrow bandwidth.
  • the base station may configure a corresponding measurement narrow bandwidth index for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate the The bandwidth information for measuring narrow bandwidth that the terminal is going to switch to.
  • the base station can divide the system bandwidth into a plurality of measurement narrow bandwidths in advance, such as measuring narrow bandwidth 1, measuring narrow bandwidth 2, etc., different measurement narrow bandwidths correspond to different measurement narrow bandwidth indexes, and the base station passes high layer signaling, such as RRC.
  • the signaling is pre-configured to the terminal, or may be pre-stored directly on the base station and the terminal.
  • FIG. 7 is a schematic diagram of measuring a downlink reference signal by using the method shown in FIG. 6 according to an embodiment of the present invention.
  • the base station schedules the terminal in the narrow bandwidth receiving mode through the narrowband PDCCH, and retunes to different measurement narrow bandwidths to measure the corresponding narrowband CSI.
  • the base station can indicate the index of the measurement narrow bandwidth to be measured by the DCI transmitted over the narrow bandwidth PDCCH, and the time at which the measurement starts and ends.
  • the terminal in the narrow bandwidth receiving mode will retune to measure the corresponding narrowband CSI on the corresponding measurement narrow bandwidth, and tune back to the narrowband receiving mode after the measurement ends.
  • the terminal receives the scheduling indication of the base station at times T1 to T2, and the terminal measures the narrowband CSI for measuring the narrow bandwidth 1 at times T3 to T4.
  • T2 to T3 are times when the terminal is tuned from a narrow bandwidth to a narrow bandwidth 1 is measured.
  • the terminal receives the scheduling indication of the base station from T5 to T6, and the terminal measures the narrowband CSI for measuring the narrow bandwidth 2 at times T7 to T8.
  • T6 to T7 are times when the terminal is tuned from a narrow bandwidth to a narrow bandwidth 2 is measured.
  • the base station schedules the terminal to perform measurement on different measurement narrow bandwidths in a single trigger manner, which can improve the measurement flexibility and facilitate the flexible configuration of the base station according to current needs.
  • the base station can perform the method of the embodiment shown in FIG.
  • FIG. 8 is a schematic flowchart of a fifth embodiment of a measurement method according to the present invention. in this embodiment, the measurement method includes:
  • the base station sends a handover message of the narrow bandwidth receiving mode to the terminal, and instructs the terminal to switch to the specified narrow bandwidth to receive information.
  • the base station schedules the terminal to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal.
  • S803 Receive channel state information of a downlink channel that is reported by the terminal, where channel state information of the downlink channel is calculated by the terminal according to a preset algorithm, and the measurement result of the at least two different measurement narrow bandwidths is calculated according to a preset algorithm; or Receiving the measurement result of the at least two measurement narrow bandwidths reported by the terminal, and calculating channel state information of the downlink channel according to a preset algorithm.
  • the base station may configure a pre-agreed preset algorithm to the terminal, and the terminal may calculate the CSI of the system bandwidth by measuring a narrowband CSI obtained by measuring different narrow bandwidth information reference signals according to the configured calculation method.
  • the preset algorithm may include, but is not limited to, weighted summation, averaging, or averaging after removing the extremum.
  • the base station may assign different weights to different narrowband CSIs, and the terminal obtains the CSI required by the base station by weighting and summing the narrowband CSIs.
  • the weight configuration may be performed according to the frequency domain position and/or width of the narrow bandwidth, for example, the frequency domain location allocation of a most frequently used frequency. Higher weights, assigning lower weights to frequency domain locations with lower usage rates; or assigning higher weights to narrow bandwidths with larger widths, and lower weights for narrow bandwidths with smaller widths.
  • the embodiment of the present invention does not limit anything.
  • the terminal can report the calculated result to the base station, such as the Physical Uplink Control Channel (PUCCH) or the uplink control information (Uplink Control Information, UCI) transmitted on the Physical Uplink Shared Channel (PUSCH). ) Report to the base station.
  • the base station such as the Physical Uplink Control Channel (PUCCH) or the uplink control information (Uplink Control Information, UCI) transmitted on the Physical Uplink Shared Channel (PUSCH).
  • the terminal may also directly report the obtained narrowband CSI to the base station by the base station configuration, such as by using UCI on PUCCH or PUSCH. Reported.
  • the base station may allocate different PUCCH resources for different narrowband CSIs (corresponding to different measurement narrow bandwidths).
  • the terminal may combine different narrowband CSIs into a group of data transmissions in a predetermined manner, such as sequentially combining narrowband CSI1, narrowband CSI2, etc. into a group of data and feeding back to the base station.
  • the base station After receiving the narrowband CSI, the base station can calculate the CSI of the uplink and downlink channels of the system bandwidth according to the preset algorithm described in the foregoing terminal, and details are not described herein.
  • the base station can also trigger the terminal to stop measuring the downlink reference signal by using DCI on the PDCCH of the narrow bandwidth. After the base station obtains the CSI of the downlink channel reported by the terminal or the reported narrowband CSI, the base station may temporarily stop the terminal to measure the downlink reference signal. The base station may also trigger the terminal to start measuring the downlink reference signal again at a later time.
  • any of the methods of FIG. 3 to FIG. 7 may be used to measure the narrow band.
  • CSI narrow band.
  • the embodiment of the invention is not limited at all.
  • the measurement method includes:
  • S901 The terminal receives a handover message of a narrow bandwidth reception mode sent by the base station, and switches to a specified narrow bandwidth to receive information.
  • the handover message includes a time indicating that the terminal enters the narrow bandwidth reception mode and a position of the narrow bandwidth on the frequency band when entering the narrow bandwidth reception mode.
  • the terminal may further receive downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • S902 When it is required to measure channel state information of the downlink channel, according to scheduling of the base station, sequentially switch to at least two different measurement narrow bandwidths to measure the downlink reference signal.
  • width of at least two different measurement narrow bandwidths is less than the width of the system bandwidth.
  • FIG. 9 is a description of an embodiment on the terminal side. For details, refer to the description of the embodiment on the base station side shown in FIG. 2, and details are not described herein again.
  • the measurement method includes:
  • S1001 The terminal receives a handover message of a narrow bandwidth reception mode sent by the base station, and switches to a specified narrow bandwidth to receive information.
  • S1002 Receive, by the base station, a measurement parameter that is used by the terminal to measure the downlink reference signal.
  • the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and a first period information used by the terminal to measure the downlink reference signal in the first measurement narrow bandwidth in the period.
  • the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth in the period and send the measurement parameter to the terminal; wherein the period includes the terminal entering The narrow bandwidth reception mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and the time of entering the narrow bandwidth reception mode again.
  • the downlink reference signal is measured by sequentially switching to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter.
  • the method may further include:
  • the measurement parameter that the base station may configure for the terminal includes at least two different configurations, and the physical downlink control of the narrow bandwidth is adopted when receiving the measurement parameter.
  • the indication of the channel determines a configuration of the measurement parameter;
  • the base station needs to modify the currently used measurement parameter, receive information that the base station sends through the narrow bandwidth physical downlink control channel, indicating that the terminal uses another configured measurement parameter to perform measurement.
  • FIG. 10 is a description of an embodiment on the terminal side. For details, refer to the description of the embodiment on the base station side shown in FIG. 3 to FIG. 5, and details are not described herein again.
  • FIG. 11 is a schematic flowchart diagram of an eighth embodiment of a measurement method according to the present invention.
  • the measurement method includes:
  • the terminal receives a handover message of a narrow bandwidth reception mode sent by the base station, and switches to a specified narrow bandwidth to receive information.
  • S1102 Receive first downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, and switch to the first measurement narrow bandwidth to measure a downlink reference signal.
  • the first downlink control information includes bandwidth information of the first measurement narrow bandwidth and a start time and an end time of measuring the first measurement narrow bandwidth.
  • S1103 After measuring the narrow bandwidth of the first measurement, switching back to the narrow bandwidth, receiving second downlink control information sent by the base station on the narrow downlink physical downlink control channel, and switching to the second measurement narrow
  • the downlink reference signal is measured over the bandwidth.
  • the second downlink control information includes bandwidth information of the second measurement narrow bandwidth and a start time and an end time of measuring the second measurement narrow bandwidth.
  • the method further includes:
  • a corresponding measurement narrow bandwidth index configured for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate bandwidth information of the measurement narrow bandwidth to which the terminal is to be switched.
  • FIG. 11 is a description of an embodiment on the terminal side. For the specific process, refer to the description of the embodiment on the side of the base station shown in FIG. 6, and details are not described herein again.
  • the measuring method may further include:
  • the measuring method further includes:
  • the base station And reporting the channel state information of the downlink channel to the base station, where the channel state information of the downlink channel is calculated by the terminal according to a preset algorithm, the measurement result of the at least two different measurement narrow bandwidths; or
  • the base station reports the measurement result of the at least two measured narrow bandwidths, so that the base station calculates channel state information of the downlink channel according to a preset algorithm;
  • the preset algorithm may include, but is not limited to, weighted summation, averaging, or averaging after removing the extremum value.
  • the base station includes:
  • the sending unit 100 is configured to send a handover message of the narrow bandwidth receiving mode to the terminal, and instruct the terminal to switch to the specified narrow bandwidth to receive information.
  • the scheduling unit 200 is configured to: when the channel state information of the downlink channel needs to be measured, the base station schedules the terminal to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the sending unit 100 is further configured to send downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the scheduling unit 200 is specifically configured to:
  • the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the first period in the period Measure a narrow bandwidth to measure first time period information of the downlink reference signal, and use, in the period, the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth, and use the measurement parameter Sending to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and entering again The duration of the narrow bandwidth reception mode;
  • the terminal scheduling, according to the measurement parameter, the terminal to sequentially switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal.
  • the sending unit 100 is further configured to: before scheduling, according to the measurement parameter, that the terminal sequentially switches to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal.
  • the downlink reference signal is measured.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when the sending unit 100 sends the measurement parameter to the terminal, the scheduling unit 200 is further configured to pass The narrow bandwidth physical downlink control channel indicates a configuration of the measurement parameter of the terminal;
  • the scheduling unit 200 is further configured to indicate, by using the narrow bandwidth physical downlink control channel, that the terminal uses another configured measurement parameter to perform measurement, if the currently used measurement parameter needs to be modified.
  • the scheduling unit 200 is specifically configured to:
  • the second downlink control information is sent on the physical downlink control channel of the narrow bandwidth, where the second downlink control information includes the The second measuring the bandwidth information of the narrow bandwidth and measuring the start time and the end time of the narrow bandwidth of the second measurement; scheduling the terminal to switch to measure the downlink reference signal on the second measurement narrow bandwidth.
  • the scheduling unit 200 is further configured to configure a corresponding measurement narrow bandwidth index for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate that the measurement to be switched by the terminal is narrow. Bandwidth information for bandwidth.
  • the scheduling unit 200 is further configured to receive channel state information of a downlink channel that is reported by the terminal, where the channel state information of the downlink channel is used by the terminal to perform the at least two different measurements according to a preset algorithm.
  • the measurement result of the narrow bandwidth is calculated; or, the measurement result of the at least two measurement narrow bandwidths reported by the terminal is received, and the channel state information of the downlink channel is calculated according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • FIG. 13 is a schematic structural diagram of a second embodiment of a base station according to the present invention.
  • the base station includes:
  • a processor 110 a memory 120, a transceiver 130, and a bus 140
  • the processor 110, the memory 120, and the transceiver 130 are connected by a bus 140
  • the transceiver 130 is configured to transceive signals and communicate with a terminal
  • the memory 120 is configured to store a set of program codes
  • the processor 110 is configured to invoke the program code stored in the memory 120 to perform the following operations:
  • the terminal When it is required to measure channel state information of the downlink channel, the terminal is scheduled to switch to at least two different measurement narrow bandwidths to measure the downlink reference signal;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the processor 110 is further configured to send, by using the transceiver 130, downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the processor 110 is specifically configured to:
  • the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the first period in the period Measure a first time period information of the downlink reference signal measured by the narrow bandwidth, and second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth during the period, by using the transceiver Sending the measurement parameter to the terminal, where the period includes the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, and switching to the second measurement narrow bandwidth measurement downlink The reference signal and the length of time to enter the narrow bandwidth reception mode again;
  • the terminal scheduling, according to the measurement parameter, the terminal to sequentially switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth to measure a downlink reference signal.
  • the processor 110 is further configured to: before the terminal is scheduled to switch to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter, the processor 110 is further configured to:
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and the processor 110 is further configured to pass the narrow bandwidth when the measurement parameter is sent to the terminal.
  • the physical downlink control channel indicates a configuration of the measurement parameter of the terminal;
  • the processor 110 is further configured to indicate, by using the narrow bandwidth physical downlink control channel, that the terminal uses another configured measurement parameter to perform measurement, if the currently used measurement parameter needs to be modified.
  • the processor 110 is specifically configured to:
  • the base station After the terminal measures the narrow bandwidth of the first measurement and switches back to the narrow bandwidth, the base station sends second downlink control information on the narrow downlink physical downlink control channel, where the second downlink control information is used. And including a bandwidth information of the second measurement narrow bandwidth and a start time and an end time of measuring the second measurement narrow bandwidth; and scheduling, by the terminal, to switch to the second measurement narrow bandwidth to measure a downlink reference signal.
  • the processor 110 is further configured to configure a corresponding measurement narrow bandwidth index for the at least two measured narrow bandwidth bandwidth information, where the measurement narrow bandwidth index is used to indicate that the measurement to be switched by the terminal is narrow Bandwidth information for bandwidth.
  • the processor 110 is further configured to receive, by using the transceiver 130, channel state information of a downlink channel that is reported by the terminal, where channel state information of the downlink channel is used by the terminal according to a preset algorithm.
  • the measurement result of the at least two different measurement narrow bandwidths is calculated by the processor 110; or the processor 110 is further configured to receive, by the transceiver 130, the measurement result reported by the terminal for the at least two measurement narrow bandwidths, according to The preset algorithm calculates channel state information of the downlink channel;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • the terminal includes:
  • the receiving unit 300 is configured to receive a handover message of a narrow bandwidth receiving mode sent by the base station;
  • the switching unit 400 is configured to switch to receive information according to the switching message to the specified narrow bandwidth.
  • the switching unit 400 is further configured to: when the channel state information of the downlink channel needs to be measured, sequentially switch to at least two different measurement narrow bandwidths to measure the downlink reference signal according to the scheduling of the base station;
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the receiving unit 300 is further configured to receive downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the receiving unit 300 is specifically configured to:
  • the measurement parameter used by the terminal to measure the downlink reference signal where the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the period
  • the first measurement narrow bandwidth measures the first time period information of the downlink reference signal
  • the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth in the period Sending the measurement parameter to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a first measurement narrow bandwidth measurement downlink reference signal, and switching to a second measurement narrow bandwidth measurement downlink reference signal And the length of time to enter the narrow bandwidth receiving mode again;
  • the switching unit 400 is specifically configured to:
  • the receiving unit 300 is further configured to:
  • the trigger signal is used to trigger the terminal to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when receiving the measurement parameter, the switching unit 400 is further configured to use the narrow bandwidth physical downlink control channel. Instructing to determine a configuration of the measurement parameter;
  • the receiving unit 300 is further configured to receive, by the base station, the measurement parameter sent by using the narrow-band physical downlink control channel, indicating that the terminal uses another configuration. Measured information.
  • the receiving unit 300 is specifically configured to:
  • first downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, where the first downlink control information includes bandwidth information of the first measurement narrow bandwidth and measuring the first measurement Start time and end time of narrow bandwidth;
  • the switching unit 400 is specifically configured to switch to the first measurement narrow bandwidth to measure a downlink reference signal
  • the receiving unit 300 is further configured to receive second downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, after the measuring the narrow bandwidth is measured,
  • the second downlink control information includes bandwidth information of the second measurement narrow bandwidth and a start time and an end time of measuring the second measurement narrow bandwidth;
  • the switching unit 400 is further configured to switch to the second measurement narrow bandwidth.
  • the downlink reference signal is measured.
  • the receiving unit 300 is further configured to receive, by the base station, a corresponding measured narrow bandwidth index configured for the at least two measured narrow bandwidth bandwidth information, where the measured narrow bandwidth index is used to indicate that the terminal is to be Switched to measure bandwidth information of narrow bandwidth.
  • the switching unit 400 is further configured to report, to the base station, channel state information of a downlink channel, where channel state information of the downlink channel is narrowed by the terminal to the at least two different measurements according to a preset algorithm.
  • the measurement result of the bandwidth is calculated; or the measurement result of the at least two measurement narrow bandwidths is reported to the base station, so that the base station calculates channel state information of the downlink channel according to a preset algorithm;
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • the terminal includes:
  • the receiver 240 is configured to receive signals, the transmitter 230 and the receiver 240 are respectively independently set or integrated, the memory 220 is configured to store a set of program codes, and the processor 210 is configured to call
  • the program code stored in the memory 220 performs the following operations:
  • narrow bandwidth and the width of the at least two different measurement narrow bandwidths are both smaller than the width of the system bandwidth.
  • the processor 210 is further configured to receive, by using the receiver 240, downlink control information for the terminal in a physical downlink control channel located on the narrow bandwidth;
  • the downlink control information is located in a terminal-specific search space corresponding to the terminal and uses a control channel unit aggregation level corresponding to the terminal.
  • the processor 210 is specifically configured to receive, by using the receiver 240, the base station configuration.
  • the terminal is configured to measure a measurement parameter of the downlink reference signal, where the measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and the terminal is used in the period to use a narrow bandwidth in the first measurement Measure the first time period information of the downlink reference signal, the second time period information used by the terminal to measure the downlink reference signal in the second measurement narrow bandwidth in the period, and send the measurement parameter to the
  • the terminal includes: the terminal entering the narrow bandwidth receiving mode, switching to the first measurement narrow bandwidth measurement downlink reference signal, switching to the second measurement narrow bandwidth measurement downlink reference signal, and entering the narrow again The length of the bandwidth receiving mode;
  • the processor 210 is further configured to receive, by the receiver 240, before measuring the downlink reference signal by sequentially switching to the first measurement narrow bandwidth and the second measurement narrow bandwidth according to the measurement parameter.
  • a trigger signal sent by the base station on the narrow bandwidth physical downlink control channel, where the trigger signal is used to trigger the terminal to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
  • the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when receiving the measurement parameter, the processor 210 is further configured to pass the narrow bandwidth physical downlink control channel. Instructing to determine a configuration of the measurement parameter;
  • the receiver 240 receives, by the base station, the measurement, by using the narrow bandwidth physical downlink control channel, that the terminal uses another configured measurement parameter to perform measurement. information.
  • the processor 210 is specifically configured to:
  • first downlink control information that is sent by the base station on the narrow downlink physical downlink control channel, where the first downlink control information includes bandwidth information of the first measured narrow bandwidth and Measuring a start time and an end time of the first measurement narrow bandwidth; switching to measuring the downlink reference signal on the first measurement narrow bandwidth;
  • the receiver 240 Switching back to the narrow bandwidth after measuring the first measurement narrow bandwidth, receiving, by the receiver 240, second downlink control information that is sent by the base station on the narrow bandwidth physical downlink control channel, the second The downlink control information includes the second measurement narrow bandwidth bandwidth information and a start time and an end time of measuring the second measurement narrow bandwidth; and switching to the second measurement narrow bandwidth to measure the downlink reference signal.
  • the processor 210 is further configured to: by using the received base station, a corresponding measured narrow bandwidth index configured for the at least two measured narrow bandwidth bandwidth information, where the measured narrow bandwidth index is used to indicate The bandwidth information of the narrow bandwidth measured to be switched by the terminal.
  • the processor 210 is further configured to report, by using the transmitter 230, channel state information of a downlink channel to the base station, where channel state information of the downlink channel is determined by the terminal according to a preset algorithm. Calculating the measurement result of the at least two different measurement narrow bandwidths; or reporting the measurement results of the at least two measurement narrow bandwidths to the base station, so that the base station calculates the downlink channel according to a preset algorithm.
  • Channel status information ;
  • the receiver 240 receives the stop measurement message sent by the base station, and stops measuring the downlink reference signal.
  • the preset algorithm includes weighted summation, averaging, or averaging after removing the extremum.
  • the base station introduced in this embodiment may be used to implement some or all of the processes in the method embodiment of the present invention, which are described in conjunction with FIG. 2 and FIG. 6, and perform some or all of the functions of the device embodiment introduced by the present invention in conjunction with FIG.
  • the terminal introduced in this embodiment may be used to implement some or all of the processes in the method embodiment of the present invention in conjunction with FIG. 7 to FIG. 9, and perform some or all of the functions in the device embodiment introduced by the present invention in conjunction with FIG. I will not repeat them here.
  • the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or code via a computer-readable medium and executed by a hardware-based processing unit.
  • the computer readable medium can comprise a computer readable storage medium (which corresponds to a tangible medium such as a data storage medium) or a communication medium comprising, for example, any medium that facilitates transfer of the computer program from one place to another in accordance with a communication protocol. .
  • computer readable media generally may correspond to (1) a non-transitory tangible computer readable storage medium, or (2) a communication medium such as a signal or carrier wave.
  • Data storage media may be any available media that can be accessed by one or more computers or one or more processors to retrieve instructions, code and/or data structures for use in carrying out the techniques described herein.
  • the computer program product can comprise a computer readable medium.
  • certain computer-readable storage media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, flash memory, or may be used to store instructions or data structures. Any other medium in the form of the desired program code and accessible by the computer. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (eg, infrared, radio, and microwave) to send commands from a website, server, or other remote source, coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies (eg, infrared, radio, and microwave) are included in the definition of the media.
  • coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology eg, infrared, radio, and microwave
  • a magnetic disk and an optical disk include a compact disk (CD), a laser disk, an optical disk, a digital video disk (DVD), a flexible disk, and a Blu-ray disk, wherein the disk usually reproduces data magnetically, and the disk passes the laser Optically copy data. Combinations of the above should also be included within the scope of computer readable media.
  • processors such as one or more digital signal processors (DSPs), general purpose microprocessors, application specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable logic arrays
  • processors may refer to any of the foregoing structures or any other structure suitable for implementing the techniques described herein.
  • the functionality described herein may be provided within dedicated hardware and/or software modules configured for encoding and decoding, or incorporated in a combined codec.
  • the techniques can be fully implemented in one or more circuits or logic elements.
  • the techniques of the present invention can be broadly implemented by a variety of devices or devices, including a wireless handset, an integrated circuit (IC), or a collection of ICs (eg, a chipset).
  • IC integrated circuit
  • Various components, modules or units are described in this disclosure to emphasize functional aspects of the apparatus configured to perform the disclosed techniques, but are not necessarily required to be implemented by different hardware units. Rather, as described above, various units may be combined in a codec hardware unit or combined with suitable software and/or by a collection of interoperable hardware units (including one or more processors as described above). Or firmware to provide.
  • system and “network” are used interchangeably herein. It should be understood that the term “and/or” herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. , B exists alone These three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods 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 exist physically separately, or two or more units may be integrated into one unit.

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Abstract

本发明实施例公开一种测量方法、基站及终端，方法包括：基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。采用本发明实施例，可使得终端在窄带宽和系统带宽进行灵活切换，在降低终端功耗的同时，实现下行信道CSI的测量。

Description

一种测量方法、基站及终端 技术领域
本发明涉及通信技术领域，尤其涉及一种测量方法、基站及终端。
背景技术
在长期演进(Long Term Evolution，LTE)系统中，终端在整个系统带宽上接收下行信号。其中，下行信号包括物理下行控制信道(Physical Downlink Control Channel，PDCCH)和下行公共参考信号如小区特定参考信号(Cell-specific Reference Signals，CRS)和信道状态信息测量参考信号(Channel State Information Reference Signals，CSI-RS)。LTE系统支持的系统带宽有1.4MHz、3MHz、5MHz、10MHz、15MHz和20MHz。其中比较典型、应用较多的系统带宽是20MHz和10MHz。在下行信道分别对应100个物理资源块(Physical Resource Block，PRB)和50个PRB。
在现有的LTE系统中，终端会一直在整个下行系统带宽上盲检PDCCH，这样会导致终端的功耗较大。尤其在第五代移动通信技术(5-Generation，5G)系统以及后续系统带宽较大的移动通信技术系统中，由于载波的带宽可能非常宽，例如可达到200MHz。如果终端仍然像在LTE系统即第四代移动通信技术(5-Generation，4G)系统中一样在全带宽上接收PDCCH，那样终端的功耗将非常高。对于支持机器通信(Machine Type Communications，MTC)的终端而言，可以在1.4MHz即6个PRB带宽上去解调下行信号。此种类型的终端，由于下行带宽变小，终端的功耗得以节约。但是由于此类终端只能工作在较窄的带宽上，如6个PRB上，终端的功能会受比较大的限制。例如，在蜂窝系统中，终端需要测量下行信道的信道状态信息(Channel State Information，CSI)，并向基站反馈。基站将根据终端反馈的CSI，作为调度下行数据的重要依据。终端对下行信道的CSI的测量一般是通过测量下行参考信号如CRS或CSI-RS完成的，由于这两种下行参考信号是由基站在整个系统带宽上发送的，难以获得准确的下行信道的CSI，因此需要解决在窄带宽上工作的终端测量下行信道的CSI的问题。
发明内容
本发明实施例提供了一种测量方法、基站及终端，可使得终端在窄带宽和系统带宽进行灵活切换，在降低终端功耗的同时，实现下行信道CSI的测量。
本发明实施例第一方面提供一种测量方法，包括：
基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
在一种可能的实现方式中，所述测量方法还包括：
在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，在根据所述测量参数调度所述终端依次切换到 所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，还包括：
在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在将所述测量参数发送给所述终端时，通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
若需要修改当前使用的测量参数，则所述基站通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
基站在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，所述基站在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述基站为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
在一种可能的实现方式中，其特征在于，所述测量方法还包括：
接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，接收所述终端上报的对所述至少两个测量窄带宽的测量结果， 根据预设算法计算得到下行信道的信道状态信息；
向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
在一种可能的实现方式中，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本发明实施例第二方面提供一种测量方法，包括：
终端接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息；
当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
在一种可能的实现方式中，所述测量方法还包括：
接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，在根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，还包括：
接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
在一种可能的实现方式中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
若所述基站需要修改当前使用的测量参数，则接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；切换到所述第一测量窄带宽上测量下行参考信号；
当测量完所述第一测量窄带宽之后切换回所述窄带宽，接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；切换到所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
在一种可能的实现方式中，所述测量方法还包括：
向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算 得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
接收所述基站发送的停止测量的消息，停止测量下行参考信号。
在一种可能的实现方式中，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本发明实施例第三方面提供一种基站，包括：
发送单元，用于向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
调度单元，用于当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
在一种可能的实现方式中，所述发送单元还用于在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述调度单元具体用于：
配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，在根据所述测量参数调度所述终端依次切换到 所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述发送单元还用于在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在所述发送单元将所述测量参数发送给所述终端时，所述调度单元还用于通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
若需要修改当前使用的测量参数，则所述调度单元还用于通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述调度单元具体用于：
在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述调度单元还用于为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
在一种可能的实现方式中，所述调度单元还用于接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
在一种可能的实现方式中，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本发明第四方面提供一种基站，包括：
处理器、存储器、收发器和总线，所述处理器、存储器和收发器通过总线连接，其中，所述收发器用于收发信号，与终端进行通信，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行以下操作：
通过所述收发器向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
当需要测量下行信道的信道状态信息时，调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
在一种可能的实现方式中，所述处理器还用于通过所述收发器在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于：
配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，通过所述收发器将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，在根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述处理器还用于：
通过所述收发器在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，所述处理器还用于在将所述测量参数发送给所述终端时，通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
若需要修改当前使用的测量参数，则所述处理器还用于通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于：
在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，所述基站在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述处理器还用于为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
在一种可能的实现方式中，所述处理器还用于通过所述收发器接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，所述处理器还用于通过所述收发器接收所述终端上报的对所述至少两个测量 窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
在一种可能的实现方式中，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本发明实施例第五方面提供一种终端，包括：
接收单元，用于接收基站发送的窄带宽接收模式的切换消息；
切换单元，用于根据所述切换消息切换到指定的窄带宽上接收信息；
所述切换单元还用于当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
在一种可能的实现方式中，所述接收单元还用于接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述接收单元具体用于：
接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
所述切换单元具体用于：
根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，在所述切换单元根据所述测量参数依次切换到 所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述接收单元还用于：
接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
在一种可能的实现方式中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，所述切换单元还用于通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
若所述基站需要修改当前使用的测量参数，则所述接收单元还用于接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述接收单元具体用于：
接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；
所述切换单元具体用于切换到所述第一测量窄带宽上测量下行参考信号；
当测量完所述第一测量窄带宽之后切换回所述窄带宽，所述接收单元还用于接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；所述切换单元还用于切换到所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述接收单元还用于接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
在一种可能的实现方式中，所述切换单元还用于向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下 行信道的信道状态信息；
接收所述基站发送的停止测量的消息，停止测量下行参考信号。
在一种可能的实现方式中，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本发明实施例第六方面提供一种终端，包括：
处理器、存储器、发射机、接收机和总线，所述处理器、存储器、发射机和接收机通过总线连接，其中，所述发射机用于发射信号，所述接收机用于接收信号，所述发射机和所述接收机分别独立设置或集成设置，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行以下操作：
通过所述接收机接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息；
当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
在一种可能的实现方式中，所述处理器还用于通过所述接收机接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于通过所述接收机接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测 量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述处理器还用于在根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，通过所述接收机接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
在一种可能的实现方式中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，所述处理器还用于通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
若所述基站需要修改当前使用的测量参数，则通过所述接收机接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
在一种可能的实现方式中，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于：
通过所述接收机接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；切换到所述第一测量窄带宽上测量下行参考信号；
当测量完所述第一测量窄带宽之后切换回所述窄带宽，通过所述接收机接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；切换到所述第二测量窄带宽上测量下行参考信号。
在一种可能的实现方式中，所述处理器还用于通过所述接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
在一种可能的实现方式中，所述处理器还用于通过所述发射机向所述基站 上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
通过所述接收机接收所述基站发送的停止测量的消息，停止测量下行参考信号。
在一种可能的实现方式中，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本发明实施例第七方面提供了一种计算机存储介质，所述计算机存储介质包括一组程序代码，用于执行如本发明实施例第一方面任一实现方式所述的方法。
本发明实施例第八方面提供了一种计算机存储介质，所述计算机存储介质包括一组程序代码，用于执行如本发明实施例第二方面任一实现方式所述的方法。
实施本发明实施例，具有如下有益效果：
基站通过配置切换消息，指示终端切换到的窄带宽接收模式，在窄带宽接收模式下，终端可以在小于系统带宽的窄带宽上接收信号，使得终端无需再检测较大的系统带宽，可以降低终端的功耗和检测信号的时延；在窄带宽的PDCCH中配置只含有UE特定搜索空间和固定的控制信道单元聚合等级，可以减少终端检测的信息量，从而可以进一步降低终端功耗；当需要测量下行信道的CSI时，基站可以调度终端切换到至少两个不同的测量窄带宽上来测量下行参考信号，然后由终端或由基站根据在不同测量窄带宽上测量得到的结果计算出下行信道的CSI，最终达到终端功耗和系统性能的平衡，确保测量得到下行信道的CSI，为调度下行数据提供参考。
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为本方面实施例中通信系统的架构示意图；
图2为本发明测量方法第一实施例的流程示意图；
图3为本发明测量方法第二实施例的流程示意图；
图4为本发明实施例采用图3所示方法测量下行参考信号的示意图；
图5为本发明测量方法的第三实施例的流程示意图；
图6为本发明测量方法第四实施例的流程示意图；
图7为本发明实施例采用图6所示方法测量下行参考信号的示意图；
图8为本发明测量方法第五实施例的流程示意图；
图9为本发明测量方法第六实施例的流程示意图；
图10为本发明测量方法第七实施例的流程示意图；
图11为本发明测量方法第八实施例的流程示意图；
图12为本发明基站的第一实施例的组成示意图；
图13为本发明基站的第二实施例的组成示意图；
图14为本发明终端的第一实施例的组成示意图；
图15为本发明终端的第二实施例的组成示意图。
具体实施方式
本发明的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或装置没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或装置固有的其它步骤或单元。
随着人们通信需求的不断提高，通信技术正快速发展，可以为用户提供更大的带宽，更快的上下行传输速度等。例如，在5G系统中，可以提供高达200MHz的系统带宽。但是随着系统带宽的扩展，如果终端在比较大的系统带宽上接收PDCCH，终端的功耗较高，如果终端一直处于较窄的带宽工作，又会影响系统性能，导致终端无法正常测量下行信道的CSI，从而对下行数据的传输造成影响。因此，本发明实施例提供了一种测量方法，使得终端可以切换 到小于系统带宽的窄带宽上工作，从而节省终端功耗，又可以在需要测量下行信道的CSI时，切换到两个或以上的测量窄带宽测量下行参考信号，然后根据测量结果得到下行信道的CSI。为了便于说明，本发明实施例中以5G系统来进行描述，本领域技术人员应当理解，本发明实施例中的实施方式同样可适用于现有通信系统以及未来更高级别如6G、7G的通信系统，本发明实施例不作任何限定。
下面结合附图对本发明实施例的测量方法及设备进行详细说明。
请参照图1，为本方面实施例中通信系统的架构示意图。其中可以包括基站和至少一个终端，终端也可生称之为用户设备(User Equipment，UE)。
其中，基站可以是演进型节点B(evolved Node B，eNB)、节点B(Node B，NB)、基站控制器(Base Station Controller，BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)、基带单元(BaseBand Unit，BBU)等。其也可以被本领域技术人员称之为基站收发机、无线基站、无线收发机、收发机功能、基站子系统(Base Station Sub system，BSS)或者一些其它适当的术语。其可以在PDCCH中承载调度下行控制信息，可具体包含传输格式、资源分配、上行调度许可、功率控制以及上行重传信息等。并可以向UE传输业务的下行数据，接收终端的重传反馈等。基站可以调度终端在窄带宽工作模式下工作，也可以调度终端在窄带宽和系统带宽之间切换，在需要测量下行信道的CSI时，调度终端切换到测量窄带宽测量下行参考信号。
其中，终端可以包括蜂窝电话、智能电话、会话启动协议(Session Initiation Protocol，SIP)电话、膝上型计算机、个人数字助理(Personal Digital Assistant，PDA)、卫星无线电、全球定位系统、多媒体设备、视频设备、数字音频播放器(例如，MP3播放器)、照相机、游戏控制台或者其它任何相似功能的设备。终端也可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户站、接入终端、移动终端、无线终端、远程终端、手持设备、用户代理、移动客户端、客户端或者一些其它适当的术语。其可以接收基站配置的控制信息以及基站调度的时频域资源来进行上行业务数据以 及重传反馈信息的传输。还可以根据基站的调度在窄带宽和测量窄带宽之间进行切换。实现对下行信道的CSI的测量。
为了降低终端的功耗，本发明实施例中可以配置终端在小于系统带宽的窄带宽上工作，下面将结合图2-图10对本发明的测量方法进行详细说明。
请参照图2，为本发明测量方法的第一实施例的流程示意图；在本实施例中，所述测量方法包括以下步骤：
S201，基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息。
其中，所述窄带宽的宽度小于系统带宽的宽度。所述切换消息中可以包含指示终端进入所述窄带宽接收模式的时间以及进入所述窄带宽接收模式时窄带宽在频带上的位置。
可选地，进入所述窄带宽接收模式的时间可以包含进入所述窄带宽接收模式的起始时间，终端接收到该切换消息后，在指定的起始时间进入窄带宽接收模式，直至接收到基站发送的停止窄带宽接收模式的消息时切换到系统带宽；或者也可以在接收到基站发送的切换到其他窄带宽或系统带宽的消息时，从当前窄带宽切换到其他窄带宽或系统带宽。
进入所述窄带宽接收模式的时间除了包含进入所述窄带宽接收模式的时间之外，或者还可以包含进入所述窄带宽接收模式的终止时间，终端可以在指定的起始时间进入窄带宽接收模式，在指定的终止时间切换回系统带宽接收信息。
可选地，基站可以通过高层信令，如无线资源控制协议(Radio Resource Control，RRC)，或者物理层信令，如DCI来指示终端切换到只接收窄带宽的模式。基站可以指示终端窄带宽接收模式开始的具体时刻，以及窄带宽在频带上的具体位置。这样，终端可以根据该切换消息切换到指定的窄带宽上接收信息。在窄带宽接收模式下，终端可以将自己的射频带宽调谐(retune)到只接收系统指示终端接收的频率域宽度即指定的窄带宽上。例如，如果基站指示终端的窄带宽是6个PRB(以15K Hz子载波间隔为例，就是1.4MHz)，那么终端就会将自己的射频单元调谐到系统指示的窄带宽所在的频带位置的6个PRB 上。此时，终端只能接收到位于这6个PRB上的信号。由于接收射频带宽的减少，终端可以获得省电的效果。终端可以不用在较宽的系统带宽上去检测信号，而只需要在小于系统带宽的窄带宽上接收信号和检测信号，减少了终端的工作量，降低了终端的功耗，提升了终端接收信号的效率。
需要说明的是，对于支持机器通信(Machine Type Communications，MTC)的终端而言，可以在1.4MHz即6个PRB带宽上去解调下行信号。对于此种类型终端，由于下行带宽变小，终端的功耗得以节约。但是由于此类终端只能工作在较窄的带宽上，如6个PRB上，终端的功能会受比较大的限制。本发明实施例中的窄带宽的宽度小于系统带宽的宽度，即本发明实施例中窄带宽是指小于系统带宽的频率域上的宽度。与现有4G系统中的1.4MHz的带宽是不同的概念。例如，现有4G系统中比较典型的系统带宽为10MHz和20MHz，当系统带宽为10MHz时，本发明实施例中的窄带宽可以是2MHz、5MHz等小于10MHz的带宽；当系统带宽为20MHz时，本发明实施例中的窄带宽可以是5MHz、10MHz、12MHz等小于20MHz的带宽。当系统带宽为1.4MHz时，本发明实施例中的窄带宽也可以是0.6MHz等小于1.4MHz的带宽。对于更大带宽的5G系统，窄带宽同样可以是小于5G系统中系统带宽的带宽。
由于终端的功耗主要体现在两方面，第一方面，终端在整个系统带宽上检测信号；第二方面，终端对PDCCH的盲检，PDCCH的盲检包括检测不同的控制信道单元聚合等级如2，4，8以及不同DCI长度等，终端检测的DCI既包含只针对单个终端的DCI，需要在UE特定搜索空间检测，也包含针对多个终端的DCI，需要在公共搜索空间检测。由于检测的内容较多，也会导致终端的功耗较高，此时，还可以在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息。
其中，所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
在窄带宽接收模式下，基站用来调度终端的PDCCH位于基站所指示的窄带宽上。为了减少终端接收这种PDCCH的复杂度，可以在位于窄带宽上的PDCCH携带针对单个不同终端的DCI，而不含有针对位于窄带宽上所有终端的DCI；或者说，位于窄带宽上的PDCCH只含有UE特定搜索空间，而不含 有公共搜索空间。同时，针对单个不同终端的DCI，其控制信道单元聚合等级可以是固定的，例如可以在基站向终端配置窄带宽接收模式时就向终端指定其控制信道单元聚合等级是多少。
由于PDCCH中只含有UE特定搜索空间和固定的控制信道单元聚合等级，因此，可以减少终端在接收位于窄带宽上的PDCCH时需要检测的信息量，从而可以进一步降低终端的功耗。
S202，当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号。
其中，所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
所述窄带宽、至少两个不同的测量窄带宽分别位于不同的频带上，可以有部分重叠或完全独立，本发明不作任何限定，且所述至少两个不同的测量窄带宽之和可以为系统带宽，也可以为系统带宽的一部分，本发明实施例同样不作任何限定。
对于处在窄带宽接收模式下的终端，基站可以指示终端在指定时间或者周期性的调谐到位于不同频率位置的其它窄带宽即测量窄带宽上去测量下行参考信号，在测量窄带宽上，终端可以通过测量位于测量窄带宽内的下行参考信号形成窄带的CSI。基站可以配置终端利用测量得到的窄带CSI形成下行信道的CSI反馈给基站；或者也可以由基站配置终端将测量得到的窄带CSI直接反馈给基站，然后由基站根据至少两个窄带CSI计算得到下行信道的CSI。为基站进行下行数据的调度提供参考。实现终端功耗和系统性能的平衡。
当然，除了使用两个及以上的测量窄带宽进行测量之外，也可以使用一个测量窄带宽进行测量，当使用两个及以上的测量窄带宽进行测量时，测量结果的准确性较高。
请参照图3，为本发明测量方法的第二实施例的流程示意图；在本实施例中，所述方法包括以下步骤：
S301，基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息。
S302，基站配置所述终端用于测量所述下行参考信号的测量参数，将所述测量参数发送给所述终端。
可选地，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息。
其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长。
S303，根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可参见图4，为本发明实施例采用图3所示方法测量下行参考信号的示意图，其中，基站可以配置测量下行参考信号的周期以及在周期内用于在各个测量窄带宽上测量下行参考信号的时段信息。例如T1～T1+L为一个完整的周期，T3～T4为在测量窄带宽1上测量下行参考信号的时段，T5～T6为在测量窄带宽2上测量下行参考信号的时段。假设L为14ms，T3～T4占用其中的第5ms至第6ms，T5～T6占用其中的第8ms至第11ms，则在每个周期内，基站都可以调度终端切换到这两个测量窄带宽测量下行参考信号。当然，基站还可以配置终端处于窄带宽的时段信息。例如，如图4所示，基站可以预先配置终端在T1～T2时间上处于窄带接收模式；而在T3～T4时间上调谐到测量窄带宽1上测量下行参考信号；在T5～T6时间上调谐到测量窄带宽2上测量下行参考信号；在在T1+L～T2+L的时间上再回到窄带宽接收模式下。其中，时间T2～T3是留给终端从窄带宽调谐到测量窄带宽1上的时间间隔，时间T5～T6是留给终端从测量窄带宽1调谐到测量窄带宽2上的时间间隔，而T6～T1+L是留给终端从测量窄带宽2调谐回窄带宽的时间。L是整个测量的周期的长度。其中测量窄带宽1和测量窄带宽2都位于系统带宽上。
需要说明的是，为了便于描述，本发明实施例采用了两个测量窄带宽进行测量的方式，本领域技术人员应当理解，当测量窄带宽为3个或以上时，同样可以的采用上述方式依次进行测量。
在本发明实施例中，通过配置具体的周期和不同测量窄带宽上测量下行参考信号的时段信息，终端可以在进入窄带宽模式时即开始按照周期进行下行 信道的CSI的测量。可以节省基站的信令开销。当然，在另一种实现方式中，基站配置了上述测量参数之后，终端也可以在进入窄带宽接收模式之后，不立即按照测量参数进行测量，而可以等待基站的触发。
请参见图5，为本发明测量方法的第三实施例的流程示意图；在本实施例中，步骤S501-S502和图3步骤S301-S302相同，步骤S504和步骤S303相同，在步骤S504之前，还包括以下步骤：
S503，在所述窄带宽的物理下行控制信道上发送触发信号。
所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，基站可以利用在窄带宽的PDCCH上的信号，如DCI里的若干bit，触发终端开始测量，终端收到触发信号后才开始按如图4所示方式开始测量。
通过触发的方式来调度终端测量，可以提升基站调度终端测量的灵活性。
且在图3-图5所示实施例中，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在将所述测量参数发送给所述终端时，通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
若需要修改当前使用的测量参数，则所述基站可以通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
例如，基站预配置了三套不同配置的参数，基站先利用窄带宽PDCCH触发终端开始按第一套配置的参数开始测量；在之后的某一时刻，基站可以再利用窄带宽的PDCCH指示终端采用第二套或第三套配置的参数开始测量。
请参照图6，为本发明测量方法的第四实施例的流程示意图；在本实施例中，所述方法包括以下步骤：
S601，基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息。
S602，基站在所述窄带宽的物理下行控制信道发送第一下行控制信息，调度所述终端切换到所述第一测量窄带宽上测量下行参考信号。
其中，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及 测量所述第一测量窄带宽的开始时间和结束时间。
S603，当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，所述基站在所述窄带宽的物理下行控制信道发送第二下行控制信息，调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
其中，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间。
可选地，为了减少带宽信息在DCI中占用的空间，所述基站可以为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。基站可以预先将系统带宽划分为若干测量窄带宽，如测量窄带宽1、测量窄带宽2等，不同的测量窄带宽对应不同的测量窄带宽索引(index)，由基站通过高层信令，如RRC信令预先配置给终端，或者也可以直接在基站和终端上预先存储。
具体测量过程可参见图7，为本发明实施例采用图6所示方法测量下行参考信号的示意图。
基站通过窄带PDCCH调度处于窄带宽接收模式下的终端，调谐(retune)到不同的测量窄带宽上去测量对应的窄带CSI。例如，基站可以通过在窄带宽PDCCH上传输的DCI指示终端将要测量的测量窄带宽的索引，以及测量开始的时间和结束的时间。处于窄带宽接收模式下的终端在收到对应的调度信息后，将调谐(retune)到对应的测量窄带宽上测量对应的窄带CSI，并在测量结束后调谐回窄带接收模式下。如图7所示，终端在T1～T2时刻接到基站的调度指示，终端将在T3～T4时刻测量针对测量窄带宽1的窄带CSI。T2～T3是终端从窄带宽调谐到测量窄带宽1的时间。对测量窄带宽1的测量结束后，终端在T5～T6时刻接到基站的调度指示，终端在T7～T8时刻测量针对测量窄带宽2的窄带CSI。T6～T7是终端从窄带宽调谐到测量窄带宽2的时间。
在本实施例中，基站通过单次触发的方式来调度终端在不同的测量窄带宽上进行测量，可以提升测量的灵活性，利于基站根据当前的需要灵活配置。
为了得到最终的下行信道的CSI，基站可以执行图8所示实施例的方法。
请参照图8，为本发明为本发明测量方法的第五实施例的流程示意图；在本实施例中，所述测量方法包括：
S801，基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息。
S802，当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号。
S803，接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息。
可选地，基站可以向终端配置预先约定的预设算法，终端可以按被配置的计算方法通过测量不同测量窄带宽的信息参考信号得到的窄带CSI，来计算出系统带宽的CSI。
所述预设算法可以包括但不限于加权求和、求平均值或去掉极值后取平均值。
例如，基站可以为不同的窄带CSI分配不同的权重，终端通过对测量得到窄带CSI加权求和得到基站需要的CSI。如：终端测量得到窄带CSI1和窄带CSI2，基站预先分配的权重分别为w1和w2，终端需要向基站汇报的CSI＝w1*CSI1+w2*CSI2。终端也可以对CSI1和CSI2求平均值得到CSI＝(CSI1+CSI2)/2。当测量窄带宽较多时，还可以对其中的极大值和极小值去除后，再求平均值。
其中，当采用加权求和的方式计算系统带宽上下行信道的CSI时，可以根据测量窄带宽的频域位置和/或宽度进行权重配置，例如，对某个最常被使用的频域位置分配较高的权重，对某个使用率较低的频域位置分配较低的权重；或者对宽度较大的测量窄带宽分配较高的权重，对宽度较小的测量窄带宽分配较低的权重等，本发明实施例不作任何限定。
终端可以向基站上报计算得到的结果，如通过物理上行控制信道(Physical Uplink Control Channel，PUCCH)或在物理上行共享信道(Physical Uplink Shared Channel，PUSCH)上传输的上行控制信息(Uplink Control Information，UCI)向基站汇报。
当然，终端除了上报计算得到的下行信道的CSI之外，也可以由基站配置终端将获得的窄带CSI直接反馈给基站，如通过PUCCH或PUSCH上的UCI 上报。可选地，当通过PUCCH反馈时，基站可以为不同的窄带CSI(对应不同的测量窄带宽)分配不同的PUCCH资源。当通过UCI反馈时，终端可以将不同的窄带CSI，按预先约定的方式组合为一组数据传输，如将窄带CSI1，窄带CSI2等顺序组合为一组数据向基站反馈。
基站收到这些窄带CSI之后，可以根据上述终端侧描述的预设算法进行计算得到系统带宽上下行信道的CSI，此处不再赘述。
S804，向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
且基站还可以通过窄带宽的PDCCH上的DCI，触发终端停止测量下行参考信号。当基站在获得终端上报的下行信道的CSI或上报的各个窄带CSI之后，基站可以暂时停止终端测量下行参考信号。基站也可以在之后的某一时刻，再次触发终端开始测量下行参考信号。
需要说明的是，以上图2-图8所示的测量方法的实施例可以独立实施，也可以相互组合实施，例如，图8实施例中可以采用图3-图7任一种方式来测量窄带CSI。本发明实施例不作任何限定。
请参照图9，为本发明测量方法的第六实施例的流程示意图；在本实施例中，所述测量方法包括：
S901，终端接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息。
其中，所述窄带宽的宽度小于系统带宽的宽度。所述切换消息中包含指示终端进入所述窄带宽接收模式的时间以及进入所述窄带宽接收模式时窄带宽在频带上的位置。
可选地，终端还可以接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
S902，当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号。
其中，至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
图9为终端侧的实施例描述，其具体过程可参见图2所示基站侧的实施例描述，此处不再赘述。
请参照图10，为本发明测量方法的第七实施例的流程示意图；在本实施例中，所述测量方法包括：
S1001，终端接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息。
S1002，接收所述基站配置所述终端用于测量所述下行参考信号的测量参数。
所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长。
S1003，根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，在根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，还可以包括：
接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
可选地，在图10所示实施例中，所述基站可以为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
若所述基站需要修改当前使用的测量参数，则接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
图10为终端侧的实施例描述，其具体过程可参见图3-图5所示基站侧的实施例描述，此处不再赘述。
请参照图11，为本发明测量方法的第八实施例的流程示意图，在本实施例中，所述测量方法包括：
S1101，终端接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息。
S1102，接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，切换到所述第一测量窄带宽上测量下行参考信号。
所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间。
S1103，当测量完所述第一测量窄带宽之后切换回所述窄带宽，接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，切换到所述第二测量窄带宽上测量下行参考信号。
所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间。
可选地，在图11所示实施例中，还可以包括：
接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
图11为终端侧的实施例描述，其具体过程可参见6所示基站侧的实施例描述，此处不再赘述。
可选地，在图9-图11所示的实施例中，所述测量方法还可以包括：
所述测量方法还包括：
向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
接收所述基站发送的停止测量的消息，停止测量下行参考信号。
所述预设算法可以包括但不限于加权求和、求平均值或去掉极值后取平均 值。
请参照图12，为本发明基站的第一实施例的组成示意图；在本实施例中，所述基站包括：
发送单元100，用于向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
调度单元200，用于当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
可选地，所述发送单元100还用于在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述调度单元200具体用于：
配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，在根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述发送单元100还用于在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽 上测量下行参考信号。
可选地，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在所述发送单元100将所述测量参数发送给所述终端时，所述调度单元200还用于通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
若需要修改当前使用的测量参数，则所述调度单元200还用于通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述调度单元200具体用于：
在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
可选地，所述调度单元200还用于为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
可选地，所述调度单元200还用于接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
可选地，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
请参照图13，为本发明基站的第二实施例的组成示意图；在本实施例中， 所述基站包括：
处理器110、存储器120、收发器130和总线140，所述处理器110、存储器120和收发器130通过总线140连接，其中，所述收发器130用于收发信号，与终端进行通信，所述存储器120用于存储一组程序代码，所述处理器110用于调用所述存储器120中存储的程序代码，执行以下操作：
通过所述收发器130向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
当需要测量下行信道的信道状态信息时，调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
可选地，所述处理器110还用于通过所述收发器130在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器110具体用于：
配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，通过所述收发器130将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，在根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述处理器110还用于：
通过所述收发器130在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，所述基站为所述终端配置的测量参数包括至少两种不同的配置，所述处理器110还用于在将所述测量参数发送给所述终端时，通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
若需要修改当前使用的测量参数，则所述处理器110还用于通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器110具体用于：
在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，所述基站在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
可选地，所述处理器110还用于为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
可选地，所述处理器110还用于通过所述收发器130接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，所述处理器110还用于通过所述收发器130接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
可选地，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
请参照图14，为本发明终端的第一实施例的组成示意图，在本实施例中，所述终端包括：
接收单元300，用于接收基站发送的窄带宽接收模式的切换消息；
切换单元400，用于根据所述切换消息切换到指定的窄带宽上接收信息；
所述切换单元400还用于当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
可选地，所述接收单元300还用于接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述接收单元300具体用于：
接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
所述切换单元400具体用于：
根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，在所述切换单元400根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述接收单元300还用于：
接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述 触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
可选地，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，所述切换单元400还用于通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
若所述基站需要修改当前使用的测量参数，则所述接收单元300还用于接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述接收单元300具体用于：
接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；
所述切换单元400具体用于切换到所述第一测量窄带宽上测量下行参考信号；
当测量完所述第一测量窄带宽之后切换回所述窄带宽，所述接收单元300还用于接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；所述切换单元400还用于切换到所述第二测量窄带宽上测量下行参考信号。
可选地，所述接收单元300还用于接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
可选地，所述切换单元400还用于向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
接收所述基站发送的停止测量的消息，停止测量下行参考信号。
可选地，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
请参照图15，为本发明终端的第二实施例的组成示意图；在本实施例中，所述终端包括：
处理器210、存储器220、发射机230、接收机240和总线250，所述处理器210、存储器220、发射机230和接收机240通过总线250连接，其中，所述发射机230用于发射信号，所述接收机240用于接收信号，所述发射机230和所述接收机240分别独立设置或集成设置，所述存储器220用于存储一组程序代码，所述处理器210用于调用所述存储器220中存储的程序代码，执行以下操作：
通过所述接收机240接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息；
当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
可选地，所述处理器210还用于通过所述接收机240接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器210具体用于通过所述接收机240接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
可选地，所述处理器210还用于在根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，通过所述接收机240接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
可选地，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，所述处理器210还用于通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
若所述基站需要修改当前使用的测量参数，则通过所述接收机240接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
可选地，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器210具体用于：
通过所述接收机240接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；切换到所述第一测量窄带宽上测量下行参考信号；
当测量完所述第一测量窄带宽之后切换回所述窄带宽，通过所述接收机240接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；切换到所述第二测量窄带宽上测量下行参考信号。
可选地，所述处理器210还用于通过所述接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
可选地，所述处理器210还用于通过所述发射机230向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法 对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
通过所述接收机240接收所述基站发送的停止测量的消息，停止测量下行参考信号。
可选地，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
本实施例中介绍的基站可以用以实施本发明结合图2-图6介绍的方法实施例中的部分或全部流程，以及执行本发明结合图10介绍的装置实施例中的部分或全部功能，本实施例中介绍的终端可以用以实施本发明结合图7-图9介绍的方法实施例中的部分或全部流程，以及执行本发明结合图12介绍的装置实施例中的部分或全部功能，在此不再赘述。
在一个或多个实例中，所描述的功能可以硬件、软件、固件或其任何组合来实施。如果以软件实施，则功能可作为一个或多个指令或代码而存储于计算机可读媒体上或经由计算机可读媒体而发送，且通过基于硬件的处理单元执行。计算机可读媒体可包含计算机可读存储媒体(其对应于例如数据存储媒体等有形媒体)或通信媒体，通信媒体包含(例如)根据通信协议促进计算机程序从一处传送到另一处的任何媒体。以此方式，计算机可读媒体大体上可对应于(1)非瞬时的有形计算机可读存储媒体，或(2)例如信号或载波等通信媒体。数据存储媒体可为可由一个或多个计算机或一个或多个处理器存取以检索指令、代码及/或数据结构以用于实施本发明中所描述的技术的任何可用媒体。计算机程序产品可包含计算机可读媒体。
通过实例而非限制，某些计算机可读存储媒体可包括RAM、ROM、EEPROM、CD-ROM或其它光盘存储器、磁盘存储器或其它磁性存储装置、快闪存储器，或可用以存储呈指令或数据结构的形式的所要程序代码且可由计算机存取的任何其它媒体。而且，任何连接可适当地称为计算机可读媒体。举例来说，如果使用同轴电缆、光缆、双绞线、数字用户线(DSL)或无线技术(例如，红外线、无线电及微波)而从网站、服务器或其它远程源发送指令，则同轴电缆、光缆、双绞线、DSL或无线技术(例如，红外线、无线电及微波)包含于媒体的定义中。然而，应理解，计算机可读存储媒体及数据存储媒体不包含 连接、载波、信号或其它瞬时媒体，而是有关非瞬时有形存储媒体。如本文中所使用，磁盘及光盘包含压缩光盘(CD)、激光光盘、光学光盘、数字影音光盘(DVD)、软性磁盘及蓝光光盘，其中磁盘通常以磁性方式复制数据，而光盘通过激光以光学方式复制数据。以上各物的组合还应包含于计算机可读媒体的范围内。
可由例如一个或多个数字信号处理器(DSP)、通用微处理器、专用集成电路(ASIC)、现场可编程逻辑阵列(FPGA)或其它等效集成或离散逻辑电路等一个或多个处理器来执行指令。因此，如本文中所使用的术语“处理器”可指代前述结构或适于实施本文中所描述的技术的任何其它结构中的任一者。另外，在一些方面中，可将本文中所描述的功能性提供于经配置以用于编码及解码的专用硬件及/或软件模块内，或并入于组合式编解码器中。而且，所述技术可完全实施于一个或多个电路或逻辑元件中。
本发明的技术可以广泛地由多种装置或设备来实施，所述装置或设备包含无线手持机、集成电路(IC)或IC集合(例如，芯片组)。在本发明中描述各种组件、模块或单元以强调经配置以执行所揭示技术的装置的功能方面，但未必要求通过不同硬件单元来实现。确切地说，如上文所描述，各种单元可组合于编解码器硬件单元中，或通过交互操作性硬件单元(包含如上文所描述的一个或多个处理器)的集合结合合适软件及/或固件来提供。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本发明的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B 这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
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 (54)

  1. 一种测量方法，其特征在于，包括：
    基站向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
    当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
    其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
  2. 如权利要求1所述的测量方法，其特征在于，所述测量方法还包括：
    在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
    所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
  3. 如权利要求1所述的测量方法，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
    基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
    根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  4. 如权利要求3所述的测量方法，其特征在于，在根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，还包括：
    在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  5. 如权利要求3或4所述的测量方法，其特征在于，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在将所述测量参数发送给所述终端时，通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
    若需要修改当前使用的测量参数，则所述基站通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
  6. 如权利要求1所述的测量方法，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
    基站在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
    当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，所述基站在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
  7. 如权利要求6所述的测量方法，其特征在于，所述基站为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
  8. 如权利要求1-4、6、7任一项所述的测量方法，其特征在于，所述测量方法还包括：
    接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
    向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
  9. 如权利要求8所述的测量方法，其特征在于，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
  10. 一种测量方法，其特征在于，包括：
    终端接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息；
    当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
    其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
  11. 如权利要求10所述的测量方法，其特征在于，所述测量方法还包括：
    接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
    所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
  12. 如权利要求10所述的测量方法，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
    接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
    根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  13. 如权利要求12所述的测量方法，其特征在于，在根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，还包括：
    接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
  14. 如权利要求12或13所述的测量方法，其特征在于，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
    若所述基站需要修改当前使用的测量参数，则接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
  15. 如权利要求10所述的测量方法，其特征在于，若所述至少两个不同 的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号，包括：
    接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；切换到所述第一测量窄带宽上测量下行参考信号；
    当测量完所述第一测量窄带宽之后切换回所述窄带宽，接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；切换到所述第二测量窄带宽上测量下行参考信号。
  16. 如权利要求15所述的测量方法，其特征在于，接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
  17. 如权利要求10-13、15、16任一项所述的测量方法，其特征在于，所述测量方法还包括：
    向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
    接收所述基站发送的停止测量的消息，停止测量下行参考信号。
  18. 如权利要求17所述的测量方法，其特征在于，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
  19. 一种基站，其特征在于，包括：
    发送单元，用于向终端发送窄带宽接收模式的切换消息，指示所述终端切 换到指定的窄带宽上接收信息；
    调度单元，用于当需要测量下行信道的信道状态信息时，所述基站调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
    其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
  20. 如权利要求19所述的基站，其特征在于，所述发送单元还用于在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
    所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
  21. 如权利要求19所述的基站，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述调度单元具体用于：
    配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
    根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  22. 如权利要求21所述的基站，其特征在于，在根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述发送单元还用于在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  23. 如权利要求20或21所述的基站，其特征在于，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在所述发送单元将所述测量参数发送给所述终端时，所述调度单元还用于通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
    若需要修改当前使用的测量参数，则所述调度单元还用于通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
  24. 如权利要求19所述的基站，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述调度单元具体用于：
    在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
    当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
  25. 如权利要求24所述的基站，其特征在于，所述调度单元还用于为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
  26. 如权利要求19-22、24、25任一项所述的基站，其特征在于，所述调度单元还用于接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
    向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
  27. 如权利要求26所述的基站，其特征在于，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
  28. 一种基站，其特征在于，包括：
    处理器、存储器、收发器和总线，所述处理器、存储器和收发器通过总线连接，其中，所述收发器用于收发信号，与终端进行通信，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行以下操作：
    通过所述收发器向终端发送窄带宽接收模式的切换消息，指示所述终端切换到指定的窄带宽上接收信息；
    当需要测量下行信道的信道状态信息时，调度所述终端依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
    其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
  29. 如权利要求28所述的基站，其特征在于，所述处理器还用于通过所述收发器在位于所述窄带宽上的物理下行控制信道中发送针对所述终端的下行控制信息；
    所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
  30. 如权利要求28所述的基站，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于：
    配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，通过所述收发器将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第 二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
    根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  31. 如权利要求30所述的基站，其特征在于，在根据所述测量参数调度所述终端依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述处理器还用于：
    通过所述收发器在所述窄带宽的物理下行控制信道上发送触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  32. 如权利要求30或31所述的基站，其特征在于，所述基站为所述终端配置的测量参数包括至少两种不同的配置，所述处理器还用于在将所述测量参数发送给所述终端时，通过所述窄带宽的物理下行控制信道指示所述终端所述测量参数的配置情况；
    若需要修改当前使用的测量参数，则所述处理器还用于通过所述窄带宽的物理下行控制信道指示所述终端使用另一种配置的测量参数进行测量。
  33. 如权利要求28所述的基站，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于：
    在所述窄带宽的物理下行控制信道发送第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第一测量窄带宽上测量下行参考信号；
    当所述终端测量完所述第一测量窄带宽并切换回所述窄带宽之后，所述基站在所述窄带宽的物理下行控制信道发送第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；调度所述终端切换到所述第二测量窄带宽上测量下行参考信号。
  34. 如权利要求33所述的基站，其特征在于，所述处理器还用于为所述至少两个测量窄带宽的带宽信息配置对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
  35. 如权利要求28-31、33、34任一项所述的基站，其特征在于，所述处理器还用于通过所述收发器接收所述终端上报的下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，所述处理器还用于通过所述收发器接收所述终端上报的对所述至少两个测量窄带宽的测量结果，根据预设算法计算得到下行信道的信道状态信息；
    向所述终端发送停止测量的消息，指示所述终端停止测量下行参考信号。
  36. 如权利要求35所述的基站，其特征在于，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
  37. 一种终端，其特征在于，包括：
    接收单元，用于接收基站发送的窄带宽接收模式的切换消息；
    切换单元，用于根据所述切换消息切换到指定的窄带宽上接收信息；
    所述切换单元还用于当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
    其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
  38. 如权利要求37所述的终端，其特征在于，所述接收单元还用于接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
    所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
  39. 如权利要求37所述的终端，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述接收单元具体用于：
    接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
    所述切换单元具体用于：
    根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  40. 如权利要求39所述的终端，其特征在于，在所述切换单元根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，所述接收单元还用于：
    接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
  41. 如权利要求39或40所述的终端，其特征在于，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，所述切换单元还用于通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
    若所述基站需要修改当前使用的测量参数，则所述接收单元还用于接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
  42. 如权利要求37所述的终端，其特征在于，若所述至少两个不同的测 量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述接收单元具体用于：
    接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；
    所述切换单元具体用于切换到所述第一测量窄带宽上测量下行参考信号；
    当测量完所述第一测量窄带宽之后切换回所述窄带宽，所述接收单元还用于接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；所述切换单元还用于切换到所述第二测量窄带宽上测量下行参考信号。
  43. 如权利要求42所述的终端，其特征在于，所述接收单元还用于接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的带宽信息。
  44. 如权利要求37-40、42、43任一项所述的终端，其特征在于，所述切换单元还用于向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
    接收所述基站发送的停止测量的消息，停止测量下行参考信号。
  45. 如权利要求44所述的终端，其特征在于，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
  46. 一种终端，其特征在于，包括：
    处理器、存储器、发射机、接收机和总线，所述处理器、存储器、发射机和接收机通过总线连接，其中，所述发射机用于发射信号，所述接收机用于接 收信号，所述发射机和所述接收机分别独立设置或集成设置，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行以下操作：
    通过所述接收机接收基站发送的窄带宽接收模式的切换消息，切换到指定的窄带宽上接收信息；
    当需要测量下行信道的信道状态信息时，根据所述基站的调度，依次切换到至少两个不同的测量窄带宽上测量下行参考信号；
    其中，所述窄带宽和所述至少两个不同的测量窄带宽的宽度均小于系统带宽的宽度。
  47. 如权利要求46所述的终端，其特征在于，所述处理器还用于通过所述接收机接收位于所述窄带宽上的物理下行控制信道中针对所述终端的下行控制信息；
    所述下行控制信息位于与所述终端对应的终端特定搜索空间且使用与所述终端对应的控制信道单元聚合等级。
  48. 如权利要求46所述的终端，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于通过所述接收机接收所述基站配置所述终端用于测量所述下行参考信号的测量参数，所述测量参数包括所述终端用于测量所述下行参考信号的周期、所述终端在所述周期内用于在所述第一测量窄带宽测量所述下行参考信号的第一时段信息、所述终端在所述周期内用于在所述第二测量窄带宽测量所述下行参考信号的第二时段信息，将所述测量参数发送给所述终端；其中，所述周期包括所述终端进入所述窄带宽接收模式、切换至第一测量窄带宽测量下行参考信号、切换至第二测量窄带宽测量下行参考信号及再一次进入所述窄带宽接收模式的时长；
    根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号。
  49. 如权利要求48所述的终端，其特征在于，所述处理器还用于在根据所述测量参数依次切换到所述第一测量窄带宽和所述第二测量窄带宽上测量下行参考信号之前，通过所述接收机接收所述基站在所述窄带宽的物理下行控制信道上发送的触发信号，所述触发信号用于触发所述终端根据所述测量参数切换到系统带宽测量下行参考信号。
  50. 如权利要求48或49所述的终端，其特征在于，所述基站为所述终端配置的测量参数包括至少两种不同的配置，在接收所述测量参数时，所述处理器还用于通过所述窄带宽的物理下行控制信道的指示确定所述测量参数的配置情况；
    若所述基站需要修改当前使用的测量参数，则通过所述接收机接收所述基站通过所述窄带宽的物理下行控制信道发送的指示所述终端使用另一种配置的测量参数进行测量的信息。
  51. 如权利要求46所述的终端，其特征在于，若所述至少两个不同的测量窄带宽包括第一测量窄带宽和第二测量窄带宽，则所述处理器具体用于：
    通过所述接收机接收所述基站在所述窄带宽的物理下行控制信道发送的第一下行控制信息，所述第一下行控制信息中包含所述第一测量窄带宽的带宽信息以及测量所述第一测量窄带宽的开始时间和结束时间；切换到所述第一测量窄带宽上测量下行参考信号；
    当测量完所述第一测量窄带宽之后切换回所述窄带宽，通过所述接收机接收所述基站在所述窄带宽的物理下行控制信道发送的第二下行控制信息，所述第二下行控制信息中包含所述第二测量窄带宽的带宽信息以及测量所述第二测量窄带宽的开始时间和结束时间；切换到所述第二测量窄带宽上测量下行参考信号。
  52. 如权利要求51所述的终端，其特征在于，所述处理器还用于通过所述接收所述基站为所述至少两个测量窄带宽的带宽信息配置的对应的测量窄带宽索引，所述测量窄带宽索引用于指示所述终端将要切换到的测量窄带宽的 带宽信息。
  53. 如权利要求46-49、51、52任一项所述的终端，其特征在于，所述处理器还用于通过所述发射机向所述基站上报下行信道的信道状态信息，所述下行信道的信道状态信息由所述终端根据预设算法对所述至少两个不同的测量窄带宽的测量结果计算得到；或者，向所述基站上报对所述至少两个测量窄带宽的测量结果，以便所述基站根据预设算法计算得到下行信道的信道状态信息；
    通过所述接收机接收所述基站发送的停止测量的消息，停止测量下行参考信号。
  54. 如权利要求53所述的终端，其特征在于，所述预设算法包括加权求和、求平均值或去掉极值后取平均值。
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