WO2018126455A1 - 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 PDFInfo
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- WO2018126455A1 WO2018126455A1 PCT/CN2017/070483 CN2017070483W WO2018126455A1 WO 2018126455 A1 WO2018126455 A1 WO 2018126455A1 CN 2017070483 W CN2017070483 W CN 2017070483W WO 2018126455 A1 WO2018126455 A1 WO 2018126455A1
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- terminal
- measurement
- reference signal
- base station
- measurement parameter
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- 238000005259 measurement Methods 0.000 claims abstract description 427
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- 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
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- 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
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- 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
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- 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
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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- 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 information, where the width of the narrow bandwidth is smaller than the width of the system bandwidth;
- the base station schedules the terminal to switch to the system bandwidth measurement downlink reference signal.
- 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 schedules the terminal to switch to the system bandwidth measurement downlink reference signal, including:
- the base station is configured to measure the 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 to measure the downlink in the period. Transmitting the measurement parameter to the terminal according to the period information of the reference signal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a system bandwidth measurement downlink reference signal, and entering the narrow bandwidth again The length of the receiving mode;
- the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- the method before scheduling, by the terminal, to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter, the method further includes:
- a trigger signal is sent 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 base station schedules the terminal to switch to the system bandwidth measurement downlink reference signal, including:
- the base station is configured to measure the measurement parameter of the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single time, and send the measurement parameter to The terminal;
- 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 measuring method further includes:
- a second aspect of the embodiments of the present invention provides a measurement method, including:
- the terminal receives the switching message of the narrow bandwidth receiving mode sent by the base station, and switches to the specified narrow bandwidth to receive information, where the width of the narrow bandwidth is 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.
- switching to the system bandwidth measurement downlink reference signal includes:
- the measurement parameter used by the terminal to measure the downlink reference signal receives, by the base station, 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 to measure in the period Period information of the downlink reference signal; wherein the period includes a duration in which the terminal enters the narrow bandwidth receiving mode, switches to a system bandwidth measurement downlink reference signal, and enters the narrow bandwidth receiving mode again;
- the method before switching to the system bandwidth measurement downlink reference signal according to the measurement parameter, the method further includes:
- switching to the system bandwidth measurement downlink reference signal includes:
- the measurement parameter that is used by the terminal to measure the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single measurement;
- 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 measuring method further includes:
- a third aspect of the embodiments of the present invention provides a base station, including:
- a sending unit configured to send, to the terminal, a switching message of a narrow bandwidth receiving mode, to indicate that the terminal switches to receive information on a specified narrow bandwidth, where a width of the narrow bandwidth is smaller than a width of the system bandwidth;
- a scheduling unit configured to: when the channel state information of the downlink channel needs to be measured, schedule the terminal to switch to the system bandwidth measurement downlink reference signal.
- 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:
- 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 to measure the downlink reference in the period.
- the period information of the signal, the measurement parameter is sent to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a system bandwidth measurement downlink reference signal, and entering the narrow bandwidth receiving again The duration of the pattern;
- the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- the sending unit is further configured to send a trigger signal on the narrow bandwidth physical downlink control channel, before the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- 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 scheduling unit is specifically configured to:
- the measurement parameter includes a duration for the terminal to measure the downlink reference signal in a single measurement, and send the measurement parameter to the terminal;
- the measurement parameter configured by the base station for the terminal includes at least two different configurations
- the sending unit 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 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 further configured to receive channel state information of the downlink channel reported by the terminal, and send a message to the terminal to stop measurement, instructing the terminal to stop measuring the downlink reference signal.
- a fourth aspect of the present invention provides a base station, including:
- a processor configured to invoke program code stored in the memory, and execute Next operation:
- the base station schedules the terminal to switch to the system bandwidth measurement downlink reference signal.
- 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 configure, by the terminal, a measurement parameter of the downlink reference signal, where the measurement parameter includes a period used by the terminal to measure the downlink reference signal. And the period information that is used by the terminal to measure the downlink reference signal in the period, and send the measurement parameter to the terminal, where the period includes the terminal entering the narrow bandwidth receiving mode, and switching Measuring the downlink reference signal to the system bandwidth and the length of time to enter the narrow bandwidth receiving mode again;
- the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- the processor before the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter, the processor is further configured to:
- the processor is specifically configured to configure, by the terminal, a measurement parameter used to measure the downlink reference signal, where the measurement parameter includes, by the terminal, a single measurement of the downlink reference signal.
- the duration of the measurement parameter is sent to the terminal;
- 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 further configured to: receive, by using the transceiver, channel state information of a downlink channel that is reported by the terminal, and send a message that stops measurement to the terminal, instructing the terminal to stop measuring Downlink reference signal.
- a fifth aspect of the embodiments of the present invention provides a terminal, including:
- a receiving unit configured to receive a switching message of a narrow bandwidth receiving mode sent by the base station, and switch to receive information on a specified narrow bandwidth, where a width of the narrow bandwidth is smaller than a width of the system bandwidth;
- the switching unit is configured to switch to the system bandwidth measurement downlink reference signal according to the scheduling of the base station when the channel state information of the downlink channel needs to be measured.
- 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 receive, by the base station, a measurement parameter that is used by the terminal to measure the downlink reference signal, where the measurement parameter includes that the terminal is used to measure the downlink a period of the reference signal and period information for measuring, by the terminal, the downlink reference signal in the period; wherein the period includes the terminal entering the narrow bandwidth receiving mode, and switching to a system 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 receiving unit before the switching unit switches to the system bandwidth measurement downlink reference signal according to the measurement parameter, the receiving unit is further configured to:
- the receiving unit is specifically configured to:
- the measurement parameter that is used by the terminal to measure the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single measurement;
- the switching unit is specifically configured to:
- the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when the receiving unit receives the measurement parameter, the switching unit is further configured to use the An indication of the narrow bandwidth physical downlink control channel determines a 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 switching unit is further configured to report channel state information of the downlink channel to the base station, receive a message of stopping measurement sent by the base station, and stop measuring the downlink reference signal.
- 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:
- 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, by using the receiver, the measurement parameter that the terminal configures, by the terminal, the downlink reference signal, where the measurement parameter includes Measuring a period of the downlink reference signal and the terminal is used in the period Measure period information of the downlink reference signal, where the period includes a duration in which the terminal enters the narrow bandwidth receiving mode, switches to a system bandwidth measurement downlink reference signal, and enters the narrow bandwidth receiving mode again;
- the processor is further configured to receive, by the receiver, physical downlink control of the base station in the narrow bandwidth, before switching to a system bandwidth measurement downlink reference signal according to the measurement parameter.
- a trigger signal sent on the channel 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 processor is specifically configured to:
- the base station configured to measure, by the terminal, a measurement parameter of the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single measurement;
- 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 processor is further configured to receive, by the receiver, the base station by using the narrow bandwidth physical downlink control channel, indicating that the terminal uses another Information about the measured parameters of the configuration.
- the processor is further configured to report, by using the transmitter, channel state information of a downlink channel to the base station, and receive, by using the receiver, a stop measurement message sent by the base station, and stop The downlink reference signal is measured.
- 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, the computer storage medium comprising a program code, for performing the method according to any implementation manner of the second aspect of the embodiment of the present invention. law.
- 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 the system bandwidth to measure the downlink reference signal, and in addition to detecting the downlink reference signal on the system bandwidth, the terminal may not need to detect the PDCCH on the system bandwidth, so that the terminal is in the system bandwidth.
- the power consumption can also be effectively controlled, and finally achieve a balance between terminal power consumption and system performance, ensuring that the CSI of the downlink channel is obtained by measurement, and provides a reference 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 flow chart of a fifth embodiment of a measuring method according to the present invention.
- FIG. 8 is a schematic flow chart of a sixth embodiment of a measuring method according to the present invention.
- FIG. 9 is a schematic flow chart of a seventh embodiment of a measuring method according to the present invention.
- FIG. 10 is a schematic structural diagram of a first embodiment of a base station according to the present invention.
- FIG. 11 is a schematic structural diagram of a second embodiment of a base station according to the present invention.
- FIG. 12 is a schematic structural diagram of a first embodiment of a terminal according to the present invention.
- Figure 13 is a schematic diagram showing the composition of a second embodiment of the terminal of the present invention.
- the embodiment of the present invention provides a measurement method, so that the terminal can switch to work on a narrow bandwidth smaller than the system bandwidth, thereby saving power consumption of the terminal, and switching to the system bandwidth measurement downlink when the CSI of the downlink channel needs to be measured.
- the signal is referenced to obtain the CSI of the downlink channel.
- the embodiment of the present invention is described in a 5G system, and those skilled in the art should understand that the embodiments in the embodiments of the present invention are equally applicable to existing communication systems and communications of higher levels such as 6G and 7G in the future.
- the system is not limited in any way by the embodiment 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 downlink control information is scheduled, and specifically includes 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.
- the scheduling terminal switches to the system 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.
- the device can receive the control information configured by the base station and the time-frequency domain resources scheduled by the base station to perform uplink service data and retransmission feedback information. It is also possible to switch between narrow bandwidth and system bandwidth 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. 2-9.
- 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 Switching to the system bandwidth when the message sent by the base station stops the narrow bandwidth reception mode;
- 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. On the PRB. At this point, 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 a UE-specific search space without a common 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 a system bandwidth measurement downlink reference signal.
- the base station can instruct the terminal to measure downlink reference signals, such as CRS and/or CSI-RS, at a specified time or periodically tuned to the system bandwidth.
- the base station may pre-configure CRS and/or CSI-RS related parameters for the terminal, such as time-frequency resources of CRS and/or CSI-RS, sequence parameters used by CRS and/or CSI-RS signals, and the like.
- the CSI of the downlink channel is obtained according to the measurement result and reported to the base station.
- 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 period information in which the terminal is used to measure the downlink reference signal in the period.
- the period includes a duration in which the terminal enters the narrow bandwidth receiving mode, switches to a system bandwidth measurement downlink reference signal, and enters the narrow bandwidth receiving mode again.
- a base station may configure a period for measuring a downlink reference signal and period information for measuring the downlink reference signal in a period.
- T1 ⁇ T1+L is a complete period
- T3 ⁇ T4 are periods for measuring the downlink reference signal.
- L is 14ms
- T3 ⁇ T4 occupy the 5ms to 12ms
- the base station can schedule the terminal to switch to the system bandwidth measurement downlink reference signal in each cycle.
- the base station can also configure time information of the terminal in a narrow bandwidth. For example, as shown in FIG.
- the base station may pre-configure the terminal to be in a narrowband reception mode at times T1 to T2; and tune to the system bandwidth to measure the downlink reference signal at time T3 to T4; at time T4 to T1+L Go back to the narrow bandwidth receive mode.
- the time T2 ⁇ T3 is the time interval reserved for the terminal to be tuned from the narrow bandwidth to the system bandwidth.
- T4 ⁇ T1+L is the time left for the terminal to tune from the system bandwidth back to the narrow bandwidth.
- L is the length of the period of measurement.
- the terminal may start measuring the CSI of the downlink channel according to the period when entering the narrow bandwidth mode.
- 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. Before step S504, the following steps are further included:
- 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 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.
- 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 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 duration used by the terminal to measure the downlink reference signal in a single measurement.
- the trigger signal is used to trigger the terminal to switch to the system bandwidth to measure the downlink reference signal according to the measurement parameter.
- the base station directly configures the duration of the measurement by the terminal and informs the terminal that the duration is the duration of T3 to T4 in FIG. 4, and the terminal is scheduled to perform measurement by triggering, which can further improve the flexibility of the measurement of the scheduling terminal. . Since the base station only configures a single measurement duration, each narrow bandwidth reception mode can last for different times. In the narrow bandwidth reception mode, the terminal measurement is triggered, and the terminal performs a single measurement according to the single measurement duration. After a single measurement is completed, the measurement can be performed at a predetermined cycle, or a single trigger can be performed next time. In addition, the configuration of the trigger signal may be consistent with the embodiment shown in FIG. 5, and details are not described herein again.
- the embodiments of the measurement method shown in FIG. 2 to FIG. 6 may be implemented independently or in combination with each other, and the embodiment of the present invention is not limited thereto.
- the measurement parameters configured by the base station for the terminal may include at least two different configurations, where When the measurement parameter is sent to the terminal, the configuration of the measurement parameter of the terminal is indicated by the narrow downlink physical downlink control channel;
- the base station may also modify the currently used measurement parameter during the measurement process. If the measurement parameter currently used is to be modified, the base station indicates, by using the narrow bandwidth physical downlink control channel, that the terminal uses another configured measurement parameter. measuring.
- 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.
- the terminal when the system measures the downlink reference signal in the system bandwidth, the terminal can only receive and measure the downlink reference signal without detecting the PDCCH of the system bandwidth, thereby saving terminal energy consumption.
- the base station may further receive the channel state information of the downlink channel reported by the terminal; and send the stop measurement to the terminal. a message indicating that the terminal stops measuring the downlink reference signal.
- the terminal may report the measured 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).
- UCI Uplink Control Information
- the base station can 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, 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.
- the measurement method includes:
- the terminal receives the handover message of the narrow bandwidth reception mode sent by the base station, and switches to the specified narrow bandwidth to receive the 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.
- FIG. 7 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:
- 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 measurement parameter includes a period in which the terminal is used to measure the downlink reference signal, and period information in which the terminal is used to measure the downlink reference signal in the period; where the period includes the terminal entering the terminal The narrow bandwidth reception mode, the time to switch to the system bandwidth measurement downlink reference signal, and the time to enter the narrow bandwidth reception mode again.
- the method may further include:
- FIG. 8 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.
- 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 measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single time.
- the method further includes:
- the measurement parameter configured by the base station for the terminal includes at least two different configurations.
- receiving the measurement parameter determining, by using an indication of the narrow bandwidth physical downlink control channel, the 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.
- the measuring method may further include:
- FIG. 9 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 base station includes:
- the sending unit 100 is 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, where the width of the narrow bandwidth is smaller than the width of the system bandwidth;
- the scheduling unit 200 is configured to, when the channel state information of the downlink channel needs to be measured, schedule the terminal to switch to the system bandwidth measurement downlink reference signal.
- 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:
- 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 to measure the downlink reference in the period.
- the period information of the signal, the measurement parameter is sent to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to a system bandwidth measurement downlink reference signal, and entering the narrow bandwidth receiving again The duration of the pattern;
- the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- the sending unit 100 is further configured to send a trigger signal on the narrow bandwidth physical downlink control channel, before the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter, where the trigger The signal is used to trigger the terminal to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- the scheduling unit 200 is specifically configured to:
- the measurement parameter includes a duration for the terminal to measure the downlink reference signal in a single measurement, and send the measurement parameter to the terminal;
- the measurement parameter configured by the base station for the terminal includes at least two different configurations, and the sending unit 100 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 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 further configured to receive channel state information of the downlink channel reported by the terminal, and send a message of stopping measurement to the terminal, to instruct the terminal to stop measuring the downlink reference signal.
- FIG. 11 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, and a storage
- the transceiver 120 and the transceiver 130 are connected by a bus 140, wherein the transceiver 130 is configured to transmit and receive signals to communicate with a terminal, the memory 120 is configured to store a set of program codes, and the processor 110 is configured to invoke the The program code stored in the memory 120 performs the following operations:
- the base station schedules the terminal to switch to the system bandwidth measurement downlink reference signal.
- 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 configured to configure, by the terminal, a measurement parameter used to measure the downlink reference signal, where the measurement parameter includes a period used by the terminal to measure the downlink reference signal, and the terminal And measuring period information of the downlink reference signal in the period, sending the measurement parameter to the terminal; wherein the period includes the terminal entering the narrow bandwidth receiving mode, switching to system bandwidth measurement a downlink reference signal and a duration of entering the narrow bandwidth receiving mode again;
- the terminal is scheduled to switch to the system bandwidth measurement downlink reference signal according to the measurement parameter.
- the processor 110 before scheduling, according to the measurement parameter, that the terminal switches to the system bandwidth measurement downlink reference signal, the processor 110 is further configured to:
- the trigger signal is sent by the transceiver 130 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 processor 110 is specifically configured to configure, by the terminal, a measurement parameter of the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single time, and Sending the measurement parameter to the terminal;
- 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 further configured to receive, by using the transceiver 130, channel state information of a downlink channel that is reported by the terminal, and send a message that stops measurement to the terminal, to instruct the terminal to stop measuring a downlink reference signal. .
- the terminal includes:
- the receiving unit 300 is configured to receive a handover message of a narrow bandwidth reception mode sent by the base station, and switch to receive information on a specified narrow bandwidth, where a width of the narrow bandwidth is smaller than a width of the system bandwidth;
- the switching unit 400 is configured to switch to the system bandwidth measurement downlink reference signal according to the scheduling of the base station when the channel state information of the downlink channel needs to be measured.
- 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 configured to receive, by the base station, a measurement parameter that is used by the terminal to measure the downlink reference signal, where the measurement parameter includes a period used by the terminal to measure the downlink reference signal. And the period information that is used by the terminal to measure the downlink reference signal in the period, where the period includes the terminal entering the narrow bandwidth receiving mode, switching to a system bandwidth measurement downlink reference signal, and entering again The duration of the narrow bandwidth reception mode;
- 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 receiving unit 300 is specifically configured to:
- the measurement parameter that is used by the terminal to measure the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single measurement;
- the switching unit 400 is specifically configured to:
- the measurement parameter configured by the base station for the terminal includes at least two different configurations, and when the receiving unit 300 receives the measurement parameter, the switching unit 400 is further configured to pass the narrow bandwidth.
- the indication of the physical downlink control channel determines 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 switching unit 400 is further configured to report channel state information of the downlink channel to the base station, receive a message for stopping measurement sent by the base station, and stop measuring the downlink reference signal.
- FIG. 13 is a schematic diagram of a composition of a second embodiment of a terminal according to the present invention. in this embodiment, 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:
- 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 configured to receive, by using the receiver 240, the base station to configure, by the terminal, a measurement parameter used by the terminal to measure the downlink reference signal, where the measurement parameter includes the terminal used in a measurement center. a period of the downlink reference signal and period information for measuring, by the terminal, the downlink reference signal in the period, where the period includes the terminal entering the narrow bandwidth receiving mode, and switching to a system bandwidth measurement downlink The reference signal and the length of time to enter the narrow bandwidth reception mode again;
- the processor 210 is further configured to: before the switching to the system bandwidth measurement downlink reference signal according to the measurement parameter, receive, by the receiver 240, the base station to send on the narrow bandwidth physical downlink control channel.
- 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 processor 210 is specifically configured to:
- the base station receives, by the receiver 240, the base station to configure, by the terminal, a measurement parameter used by the terminal to measure the downlink reference signal, where the measurement parameter includes a duration used by the terminal to measure the downlink reference signal in a single measurement;
- 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 processor 210 is further configured to receive, by the receiver 240, the base station by using the narrow bandwidth physical downlink control channel, indicating that the terminal uses another A configuration of measured parameters for measurement information.
- the processor 210 is further configured to report the downlink to the base station by using the transmitter 230.
- Channel state information of the channel receiving, by the receiver 240, the stop measurement message sent by the base station, and stopping measuring the downlink reference signal.
- 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.
- CD compact disk
- DVD digital video disk
- a flexible disk a hard disk
- Blu-ray disk wherein the disk usually reproduces data magnetically, and the disk passes the laser Optically copy data.
- the combination of the above should also be included in the computer readable media Inside.
- 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. There are three cases of B alone. 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
Description
Claims (42)
- 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,其中,所述窄带宽的宽度小于***带宽的宽度;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切换到***带宽测量下行参考信号。
- 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。
- 如权利要求1所述的测量方法,其特征在于,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切换到***带宽测量下行参考信号,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以及所述终端在所述周期内用于测量所述下行参考信号的时段信息,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***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切换到***带宽测量下行参考信号。
- 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切换到***带宽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***带宽测量下行参考信号。
- 如权利要求1所述的测量方法,其特征在于,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切换到***带宽测量下行参考信号,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单次测量所述下行参考信号的时长,将所述测量参数发送给所述终端;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切换到***带宽根据所述测量参数测量下行参考信号。
- 如权利要求3-5任一项所述的测量方法,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。
- 如权利要求1-5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;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。
- 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,其中,所述窄带宽的宽度小于***带宽的宽度;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,切换到***带宽测量下行参考信号。
- 如权利要求8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。
- 如权利要求8所述的测量方法,其特征在于,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,切换到***带宽测量下行参考信号,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以及所述终端在所述周期内用于测量所述下行参考信号的时段信息;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***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;根据所述测量参数切换到***带宽测量下行参考信号。
- 如权利要求10所述的测量方法,其特征在于,在根据所述测量参数切换到***带宽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***带宽测量下行参考信号。
- 如权利要求8所述的测量方法,其特征在于,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,切换到***带宽测量下行参考信号,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单次测量所述下行参考信号的时长;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;根据所述触发信号和所述测量参数切换到***带宽测量下行参考信号。
- 如权利要求10-12任一项所述的测量方法,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。
- 如权利要求8-12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;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。
- 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,其中,所述窄带宽的宽度小于***带宽的宽度;调度单元,用于当需要测量下行信道的信道状态信息时,调度所述终端切换到***带宽测量下行参考信号。
- 如权利要求15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。
- 如权利要求15所述的基站,其特征在于,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以及所述终端在所述周期内用于测量所述下行参考信号的时段信息,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***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切换到***带宽测量下行参考信号。
- 如权利要求17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切换到***带宽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***带宽测量下行参考信号。
- 如权利要求15所述的基站,其特征在于,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单次测量所述下行参考信号的时长,将所述测量参数发送给所述终端;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切换到***带宽根据所述测量参数测量下行参考信号。
- 如权利要求17-19任一项所述的基站,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,所述发送单元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。
- 如权利要求15-19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;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。
- 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,其中,所述窄带宽的宽度小于***带宽的宽度;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切换到***带宽测量下行参考信号。
- 如权利要求22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。
- 如权利要求22所述的基站,其特征在于,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以及所述终端在所述周期内用于测量所述下行参考信号的时段信息,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***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切换到***带宽测量下行参考信号。
- 如权利要求24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切换到***带宽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***带宽测量下行参考信号。
- 如权利要求22所述的基站,其特征在于,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单次测量所述下行参考信号的时长,将所述测量参数发送给所述终端;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 发所述终端切换到***带宽根据所述测量参数测量下行参考信号。
- 如权利要求24-26任一项所述的基站,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。
- 如权利要求24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;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。
- 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,切换到指定的窄带宽上接收信息,其中,所述窄带宽的宽度小于***带宽的宽度;切换单元,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,切换到***带宽测量下行参考信号。
- 如权利要求29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。
- 如权利要求28所述的终端,其特征在于,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以及所述终端在所述周期内用于测量所述下行参考信号的时段信息;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***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:根据所述测量参数切换到***带宽测量下行参考信号。
- 如权利要求31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切换到***带宽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***带宽测量下行参考信号。
- 如权利要求29所述的终端,其特征在于,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单次测量所述下行参考信号的时长;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;所述切换单元具体用于:根据所述触发信号和所述测量参数切换到***带宽测量下行参考信号。
- 如权利要求31-33任一项所述的终端,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,在所述接收单元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。
- 如权利要求29-33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;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。
- 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,其中,所述窄带宽的宽度小于***带宽的宽度;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,切换到***带宽测量下行参考信号。
- 如权利要求36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。
- 如权利要求36所述的终端,其特征在于,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以及所述终端在所述周期内用于测量所述下行参考信号的时段信息;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***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;根据所述测量参数切换到***带宽测量下行参考信号。
- 如权利要求38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切换到***带宽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***带宽测量下行参考信号。
- 如权利要求36所述的终端,其特征在于,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单次测量所述下行参考信号的时长;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;根据所述触发信号和所述测量参数切换到***带宽测量下行参考信号。
- 如权利要求38-40任一项所述的终端,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,则所述处理器还用于通过所述接收机,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。
- 如权利要求38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;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。
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WO2018126456A1 (zh) * | 2017-01-06 | 2018-07-12 | 广东欧珀移动通信有限公司 | 一种测量方法、基站及终端 |
CN111149318B (zh) * | 2017-10-02 | 2023-02-28 | 瑞典爱立信有限公司 | 用于极简载波操作的网络节点及由其执行的方法 |
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EP3917060B1 (en) | 2023-09-06 |
BR112019014029A2 (pt) | 2020-02-04 |
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IL267827B2 (en) | 2023-04-01 |
TWI751254B (zh) | 2022-01-01 |
CA3049282C (en) | 2021-09-14 |
PH12019501587A1 (en) | 2020-02-24 |
EP3917060A1 (en) | 2021-12-01 |
EP3557926B1 (en) | 2021-08-11 |
RU2727531C1 (ru) | 2020-07-22 |
EP3557926A4 (en) | 2019-12-18 |
US11452119B2 (en) | 2022-09-20 |
ZA201904738B (en) | 2020-12-23 |
IL267827B (en) | 2022-12-01 |
AU2017391826A1 (en) | 2019-08-01 |
EP3557926A1 (en) | 2019-10-23 |
JP2020503810A (ja) | 2020-01-30 |
CN110169168B (zh) | 2023-05-12 |
KR20190102010A (ko) | 2019-09-02 |
MX2019008088A (es) | 2019-08-29 |
AU2017391826B2 (en) | 2022-03-03 |
IL267827A (en) | 2019-10-31 |
JP6968890B2 (ja) | 2021-11-17 |
SG11201906250YA (en) | 2019-08-27 |
CA3049282A1 (en) | 2018-07-12 |
CN110169168A (zh) | 2019-08-23 |
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