WO2017202228A1 - 一种发送系统信息的方法、装置、基站及终端 - Google Patents

一种发送系统信息的方法、装置、基站及终端 Download PDF

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Publication number
WO2017202228A1
WO2017202228A1 PCT/CN2017/084521 CN2017084521W WO2017202228A1 WO 2017202228 A1 WO2017202228 A1 WO 2017202228A1 CN 2017084521 W CN2017084521 W CN 2017084521W WO 2017202228 A1 WO2017202228 A1 WO 2017202228A1
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Prior art keywords
window
period
offset
link measurement
radio link
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PCT/CN2017/084521
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English (en)
French (fr)
Inventor
路杨
孙立新
丁颖哲
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北京佰才邦技术有限公司
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Priority to US16/304,603 priority Critical patent/US10869262B2/en
Publication of WO2017202228A1 publication Critical patent/WO2017202228A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078Timing of allocation
    • H04L5/0085Timing of allocation when channel conditions change
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0203Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0096Indication of changes in allocation
    • H04L5/0098Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a base station, and a terminal for transmitting system information.
  • MulteFire is a new radio access technology based on Long Term Evolution (LTE), which can operate independently in unlicensed spectrum without the aid of licensed band carriers. MulteFire extends LTE to the unlicensed spectrum.
  • LTE Long Term Evolution
  • the MulteFire physical layer introduces a Listening Before Talk (LBT) mechanism similar to WiFi carrier sensing technology.
  • LBT Listening Before Talk
  • MulteFire introduces a Discovery Reference Signal (DRS), which contains the main downlink common control signals, including system broadcast and primary synchronization signal (PSS, Primary Sync). Signal), Secondary Synchronization Signal (SSS), Enhanced Primary Sync Signal (ePSS), Enhanced Secondary Sync Signal (eSSS), Cell Reference Signal (CRS, Cell Reference Signal)
  • DRS Discovery Reference Signal
  • PSS System broadcast and primary synchronization signal
  • SSS Secondary Synchronization Signal
  • ePSS Enhanced Primary Sync Signal
  • eSSS Enhanced Secondary Sync Signal
  • CRS Cell Reference Signal
  • the main system information block (MIB) and the enhanced system information block (eSIB) the DRS occupies 12 or 14 symbols in one downlink subframe.
  • the DRS is transmitted in the DRS Transmission Window (DTXW, DRS Transmission Window), and when the LBT of the base station is successful, the base station transmits the DRS once in the DTxW.
  • the length of the DTxW is 1 to 10 milliseconds (ms).
  • the base station may transmit DRS in any subframe within the DTxW, and the period of occurrence of the DTxW is at least 40 ms. And must be an integer multiple of 40ms.
  • the terminal (UE) detects the DRS within the DTxW for downlink synchronization, reception MIB, and eSIB.
  • the base station transmits CRS in each downlink subframe, and each subframe can be used as a radio link detection and measurement sample (Sample).
  • the terminal evaluates the downlink channel quality by measuring the reference signal received quality (RSRQ, Reference Signal Receive Quality) of the CRS signal.
  • RSRQ Reference Signal Receive Quality
  • the base station transmits the CRS only in the subframe in which the DRS is located or in other subframes that are transmitted by the Physical Downlink Shared Channel (PDSCH).
  • FIG. 1 is a schematic diagram of the CRS detected by the UE in the MulteFire system.
  • Multefire also introduces Discovery Signals Measurement Timing Configuration (DMTC), which indicates that the UE measures the reference signals of the serving cell and the neighboring cell in the DMTC window in which the period occurs for wireless link quality monitoring. , cell selection, cell reselection or handover.
  • the base station may configure an independent DMTC for the MF serving cell, the MF Pro-cell with the same frequency as the MF serving cell, and the MF Pro-cell with the MF serving cell. Since the Multefire system can only guarantee that the CRS is transmitted in the DRS subframe in the DTxW, the DMTC window of each frequency point and cell must include the corresponding frequency point and the DRS subframe of the cell to ensure the DRS subframe in the frequency point and the cell.
  • DMTC Discovery Signals Measurement Timing Configuration
  • the CRS measurement wherein the DMTC window length is 1ms-10ms.
  • the UE performs radio link quality measurement only in the DMTC of the serving cell, the DMTC of the same-frequency pre-cell, and the DMTC of the inter-frequency pre-cell.
  • each system information (SI) message is transmitted only in one SI window (SI-windows): one SI message is associated with one SI window, and only the SI message can be sent in the SI window and can be repeatedly sent. Multiple times, how many times SI messages are sent in the SI window, in which subframes are sent, etc., depending on the implementation of the base station, but other SI messages cannot be sent.
  • the SI window lengths of all SI messages are the same; and if the order of the SIs corresponding to the two windows is adjacent, the SI windows are next to each other, and neither overlap or overlap; the periods of different SI messages are independent. Configured.
  • the length of the SI window is specified by the si-WindowLength field of SystemInformationBlockType1 in SIB1, in ms.
  • the schedulingInfoList of SystemInformationBlockType1 specifies a list of SI messages, and the order of each SI message in the list is denoted by n (starting at 1). If 4 SI messages are specified in the schedulingInfoList, there will be 4 consecutive SI windows for transmitting the 4 SI messages, and n indicates that the SI messages are in the first SI window.
  • SFN%T guarantees the period of the SI
  • FLOOR(x/10) determines the starting radio frame offset of the SI window in the SI period.
  • one radio frame is 10ms.
  • the SI window starts from SFN0.
  • the length of each SI window can be selected from ms1, ms2, ms5, ms10, ms15, ms20, ms40.
  • the SI period may be 80ms, 160ms, 320ms, 640ms, 1280ms, 2560ms, 5120ms.
  • the UE in the idle (IDLE) state detects the SI Radio Network Temporary Identity (SI-RNTI) in each subframe in the SI window, and receives the message of the SI.
  • SI-RNTI SI Radio Network Temporary Identity
  • the SI window of the system information can be configured at any position according to the period.
  • the UE in the IDLE state can perform radio link measurement in any subframe, and each UE performs radio link measurement at different times, so the SI window of the system information cannot be saved in any position.
  • a wireless communication system for example, an MF system
  • all UEs in the cell perform radio link measurement only within a specified time window. If the configuration of the existing system information is used in such a system, The UE is caused to open the receiver outside the radio link measurement window to increase the power consumption of the UE.
  • the purpose of the embodiments of the present disclosure is to provide a method, an apparatus, a base station, and a terminal for transmitting system information, which solves the problem that the terminal needs to open the receiver outside the wireless link measurement window and increase the power consumption of the terminal.
  • embodiments of the present disclosure provide a method of transmitting system information, Applied to a base station, the method includes:
  • the SI is transmitted to the terminal through each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in the radio link measurement window of the serving cell where the terminal is located.
  • An embodiment of the present disclosure further provides an apparatus for transmitting system information, which is applied to a base station, and the apparatus includes:
  • a first processing module configured to determine a location of an SI window corresponding to each system information SI, and determine a configuration parameter of each SI window according to a window position of each SI;
  • a first sending module configured to send a discovery reference signal DRS to the terminal, where the enhanced system information block eSIB in the DRS carries configuration parameters of each SI window;
  • a second sending module configured to send the SI to the terminal by using the SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • Embodiments of the present disclosure also provide a base station, including:
  • a processor configured to determine a location of an SI window corresponding to each system information SI, and determine a configuration parameter of each SI window according to a window position of each SI;
  • the transmitter is connected to the processor, and is configured to: send a discovery reference signal DRS to the terminal, where the enhanced system information block eSIB in the DRS carries configuration parameters of each SI window;
  • the transmitter is further configured to send the SI to the terminal through each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • An embodiment of the present disclosure further provides a method for transmitting a system information message, which is applied to a terminal, and the method includes:
  • the SI sent by the base station is received from each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • An embodiment of the present disclosure further provides an apparatus for transmitting a system information message, which is applied to a terminal, and the apparatus includes:
  • a first receiving module configured to receive a discovery reference signal DRS sent by the base station, where the enhanced system information block eSIB in the DRS carries configuration parameters of the SI window corresponding to each system information SI;
  • a second processing module configured to determine a location of each SI window according to a configuration parameter of the SI window
  • a second receiving module configured to receive the SI sent by the base station from each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located .
  • An embodiment of the present disclosure further provides a terminal, including:
  • a receiver configured to receive a discovery reference signal DRS sent by the base station, where the enhanced system information block eSIB in the DRS carries configuration parameters of the SI window corresponding to each system information SI;
  • a processor connected to the receiver, is configured to implement the following functions: determining a location of each SI window according to a configuration parameter of the SI window;
  • the receiver is further configured to receive the SI sent by the base station from each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the partial SI window in the SI window corresponding to each SI is configured in the radio link measurement window of the serving cell where the terminal is located, so that the terminal attempts to receive system information while performing radio link measurement.
  • the invention solves the problem that the terminal needs to open the receiver outside the wireless link measurement window and increase the power consumption of the terminal, thereby achieving the effect of saving the power consumption of the UE and prolonging the usage time of the UE battery.
  • FIG. 1 is a schematic diagram of a CRS detected by a UE in a MulteFire system
  • FIG. 2 is a flowchart of a method for transmitting system information in a first embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for transmitting system information in a second embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a configuration of an SI window in a first example of the first implementation manner in the second embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a configuration of an SI window in a second example in the first implementation manner of the second embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a configuration of an SI window in an example in a fourth implementation manner of the second embodiment of the present disclosure
  • FIG. 7 is a flowchart of a method of transmitting system information in a third embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a configuration of an SI window in an example in a fourth implementation manner of the third embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of an apparatus for transmitting system information in a fourth embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a base station according to a fifth embodiment of the present disclosure.
  • FIG. 11 is a flowchart of a method of transmitting system information in a sixth embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of an apparatus for transmitting system information in a seventh embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a terminal in an eighth embodiment of the present disclosure.
  • the present disclosure is directed to the related art that when the configuration of the system information is used for the wireless communication system that intermittently transmits the cell reference signal, the problem that the UE needs to turn on the receiver outside the radio link measurement window and increase the power consumption of the UE is caused.
  • the following embodiments of the present disclosure provide a method, an apparatus, a base station, and a terminal for transmitting system information, by configuring a partial SI window in a radio link measurement window, so that the UE attempts to receive the system while performing radio link measurement. Information, thereby achieving the effect of saving the power consumption of the UE and prolonging the usage time of the UE battery.
  • a first embodiment of the present disclosure provides a method for transmitting system information, which is applied to a base station, and the method includes:
  • Step 201 Determine a location of an SI window corresponding to each system information, and determine a configuration parameter of each SI window according to a window position of each SI.
  • Step 202 Send a discovery reference signal to the terminal.
  • the enhanced system information block (eSIB) in the DRS carries the configuration parameters of each SI window.
  • Step 203 Send SI to the terminal through each SI window.
  • Each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the UE performs radio link measurements only within a specified time window. Therefore, the base station can determine the location of each SI window by acquiring configuration parameters of the radio link measurement window of the UE in the serving cell, so as to configure the SI window of the serving cell in the radio link measurement window of the serving cell. And because the wireless link measurement window includes: DMTC window and DTxW window. Therefore, the SI window of the serving cell can be configured in the DMTC window or in the DTxW window. That is, the above wireless link measurement window is a DMTC window or a DTxW window.
  • the terminal can attempt to receive system information while performing wireless link measurement.
  • the invention solves the problem that the terminal needs to open the receiver outside the wireless link measurement window and increase the power consumption of the terminal, thereby achieving the effect of saving the power consumption of the UE and prolonging the usage time of the UE battery.
  • a second embodiment of the present disclosure provides a method for transmitting system information, which is applied to a base station, and the method includes:
  • Step 301 Acquire configuration parameters of the radio link measurement window, determine a location of each SI window according to a configuration parameter of the radio link measurement window, and determine a configuration parameter of each SI window according to a window position of each SI.
  • the configuration parameters of the wireless link measurement window include: none The period of the line link measurement window, the subframe offset of the radio link measurement window during the period, and the duration of the radio link measurement window.
  • the wireless link measurement window is a DTxW window.
  • the configuration parameters of the DTxW window include: the period of the DTxW window, the subframe offset of the DTxW window during the period, and the duration of the DTxW window.
  • the configuration parameters of the SI window include the period of the SI window, the basic subframe offset of the SI window in the period, and the length of the SI window.
  • Step 302 Send a discovery reference signal to the terminal.
  • the enhanced system information block in the DRS carries the configuration parameters of each SI window.
  • T dtxw-Periodicity/10, where dtxw-Periodicity represents the period of the DTxW window.
  • step 303 the SI is sent to the terminal through each SI window.
  • Each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the above step 301 includes four specific implementations.
  • the first information of the SI is not transmitted in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other.
  • the first implementation specifically includes the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DTxW window).
  • the periods of the SI windows may be different, but they are all integer multiples of the period of the DTxW window.
  • the subframe offset of the radio link measurement window (ie, DTxW window) in the period is used as the basic subframe offset of the SI window in the period.
  • the subframe offset of the DTxW window in the period is 0, that is, the basic subframe offset of each SI window in the period is 0.
  • SI-Periodicity represents the period of the SI window
  • x table Shows the starting subframe offset of the SI window during the period. Specifically, when it is necessary to calculate a certain SI window starting frame number, the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • Duration represents the duration of the radio link measurement window (ie DTxW window)
  • N1 represents the number of SI windows configured in the radio link measurement window (ie DTxW window).
  • the N1 may be the total number of SI windows, or may be smaller than the total number of SI windows. That is, all SI windows can be configured in the DTxW window, or some SI windows can be configured in the DTxW window.
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 1.
  • the basic subframe offset in the period of the SI window, the sequence number and the length in the SI message list may be substituted into the above formula.
  • the starting subframe offset of the SI window in the period is calculated.
  • the eSIB further includes a first information indicating that the terminal does not send the SI in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other. In addition, there is no strict sequence between the above steps.
  • the N-N1 SI windows are located outside the DTxW window.
  • the N-N1 SI window is configured outside the DTxW window to maximize the power consumption of the UE.
  • N is the total number of SI windows.
  • the base station can use the same Broadcast Radio Network Temporary Identity (RNTI), ie SI-RNTI
  • RNTI Broadcast Radio Network Temporary Identity
  • the downlink control information (DCI, Downlink Control Information) of the eSIB and the SI is scrambled, and the UE receives the eSIB and the SI using the SI-RNTI.
  • the transmission of the eSIB and the SI is independent of each other, and the DRS subframe can only transmit the eSIB without transmitting the SI, that is, the SI is configured in the non-DRS subframe of the DTxW window. Therefore, if there is a subframe in which the DRS is to be transmitted in the SI window, the subframe cannot transmit the SI.
  • the position and configuration parameters of each SI window are determined using the first implementation described above in two specific examples.
  • the DTxW window has a period of 40 milliseconds (ms) and the DTxW window has a duration of 4 ms.
  • the length of each SI window is 2 ms, the number of SI windows is 2, specifically the S1-1 window and the SI-2 window, and the period of the S1-1 window is 80 ms, and the period of the SI-2 window is 160 ms.
  • a part of the SI window is configured in the DTxW window, and a specific configuration diagram is shown in FIG. 5, wherein the total number of SI windows is 2, specifically, an S1-1 window and an SI-2 window, and Configure the SI-1 window in the DTxW window and configure the SI-2 window outside the DTxW window.
  • the period of the DTxW window is 40 ms
  • the duration of the DTxW window is 4 ms
  • the length of each SI window is 4 ms
  • the period of the S1-1 window is 80 ms
  • the period of the SI-2 window is 160 ms.
  • the second information of the eSIB and the SI can be simultaneously transmitted in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other.
  • the second implementation specifically includes the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DTxW window).
  • the periods of the SI windows may be different, but they are all integer multiples of the period of the DTxW window.
  • the subframe offset of the radio link measurement window (ie DTxW window) is used in the period.
  • the basic subframe offset for the SI window in the period.
  • the subframe offset of the DTxW window in the period is 0, that is, the basic subframe offset of each SI window in the period is 0.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • Duration represents the duration of the radio link measurement window (ie DTxW window)
  • N1 represents the number of SI windows configured in the radio link measurement window (ie DTxW window).
  • the N1 may be the total number of SI windows, or may be smaller than the total number of SI windows. That is, all SI windows can be configured in the DTxW window, or some SI windows can be configured in the DTxW window.
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 1.
  • the basic subframe offset in the period of the SI window, the sequence number and the length in the SI message list may be substituted into the above formula.
  • the starting subframe offset of the SI window in the period is calculated.
  • the eSIB further includes a second information for indicating that the terminal can simultaneously send the eSIB and the SI in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other. That is, it indicates that the eSIB and SI are allowed to be simultaneously transmitted in the DRS subframe, that is, the SI can be in the DTxW window.
  • There are subframes to be transmitted so only eSIB may be transmitted in the DRS subframe, and eSIB and one SI may be simultaneously transmitted. Since the DRS can be sent in any subframe in the DTxW window, the eSIB may be sent simultaneously with any SI window in which the SI is located in the DTxW window. In addition, there is no strict sequence between the above steps.
  • the base station may separately schedule the eSIB and the SI by using different downlink control information (DCI, Downlink Control Information), for example, using different sizes of DCI or different formats.
  • the DCI can also schedule eSIB and SI with the same DCI. That is, the downlink control information corresponding to the eSIB may be the same as or different from the DCI corresponding to the SI.
  • the DCI may be scrambled by using different broadcast RNTIs, that is, the UE uses different broadcast RNTIs to detect the eSIB and the SI.
  • the same broadcast RNTI that is, the SI-RNTI may also be used.
  • the DCI is added, that is, the UE uses the SI-RNTI to detect the eSIB and the SI.
  • the eSIB and the first SI are sent in the DRS subframe, and the specific steps include the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DTxW window).
  • each SI window in the first step refers to an SI window other than the SI window corresponding to the first SI.
  • the subframe offset of the radio link measurement window (ie, DTxW window) in the period is used as the basic subframe offset of the SI window in the period.
  • the subframe offset of the DTxW window in the period is 0, that is, the basic subframe offset of each SI window in the period is 0.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • the starting frame number and the starting subframe number of the SI window except the SI window corresponding to the first SI are calculated.
  • Duration represents the duration of the radio link measurement window (ie DTxW window)
  • N1 represents the number of SI windows configured in the radio link measurement window (ie DTxW window).
  • x represents the starting subframe offset of the SI window in the period
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 2.
  • the eSIB further includes a third information for instructing the terminal to simultaneously send the eSIB and the first SI in the DRS subframe, and is used to indicate that the terminal does not send in the DRS subframe.
  • the fourth information of the SI other than the SI transmitted simultaneously with the eSIB that is, it indicates that the eSIB and the first SI are allowed to be simultaneously transmitted in the DRS subframe.
  • the period of the SI window corresponding to the first SI is an integer multiple of eSIB, and the first SI is fixedly configured, that is, configured to be sent simultaneously with the eSIB. In addition, there is no strict sequence between the above steps.
  • the N-N1 SI windows are located outside the DTxW window.
  • the N-N1 SI window is configured outside the DTxW window to maximize the power consumption of the UE.
  • N is the total number of SI windows.
  • the SI transmitted simultaneously with the eSIB may not be the first SI but other SIs.
  • the base station can separately schedule the eSIB and the SI by using different downlink control information, for example, DCI of different sizes or DCI of different formats, or the same.
  • the DCI may be scrambled by using different broadcast RNTIs, that is, the UE uses different broadcast RNTIs to detect the eSIB and the SI.
  • the same broadcast RNTI, that is, the SI-RNTI may also be used.
  • the DCI is added, that is, the UE uses the SI-RNTI to detect the eSIB and the SI.
  • all SI windows are configured in K wireless link measurement windows, and in this implementation, the configuration parameters of the SI window further include the period of the wireless link measurement window and the K wireless links.
  • the number of SI windows configured in each wireless link measurement window of the measurement window specifically includes the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DTxW window), and the period of each SI window is greater than or equal to K times the period of the radio link measurement window.
  • the periods of the SI windows may be different, but they are all integer multiples of the period of the DTxW window.
  • the subframe offset of the radio link measurement window (ie, DTxW window) in the period is used as the basic subframe offset of the SI window in the period.
  • the subframe offset of the DTxW window in the period is 0, that is, the basic subframe offset of each SI window in the period is 0.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • Duration represents the duration of the radio link measurement window (ie DTxW window)
  • N2 represents each radio link measurement window in the K radio link measurement windows (ie DTxW window) (ie The number of SI windows configured in the DTxW window).
  • the sixth step and the seventh step there are two methods for calculating the starting subframe offset of each SI window in the period, which are the sixth step and the seventh step, respectively, and therefore, the sixth step and the seventh step. Steps are a side-by-side step, and you can choose one.
  • n represents the sequence number of the SI window in the SI message list.
  • N2 represents the number of SI windows configured in each radio link measurement window (ie DTxW window) in K radio link measurement windows (ie DTxW window)
  • m represents the SI window in the kth wireless chain
  • x' represents the virtual start subframe offset of the SI window in the SI period
  • n represents the sequence number of the SI window in the SI message list, and n is greater than or equal to 1
  • x represents the starting subframe offset of the SI window
  • N2 represents the number of SI windows configured in each radio link measurement window of the K radio link measurement windows
  • Offset represents the basic subframe offset of the SI window in the period
  • Periodicity represents the period of the radio link measurement window.
  • the foregoing eSIB further includes a fifth information for instructing the terminal to configure all the SI windows in the K radio link measurement windows, and the foregoing steps are not strict.
  • this implementation supports a non-continuous configuration of the SI window, ie, an interval may occur between the two SI windows.
  • the position and configuration parameters of each SI window are determined using a fourth implementation described above with one specific example.
  • all SI windows are non-contiguously configured, wherein the number of SI windows is 2, specifically S1-1 window and SI-2 window, and a specific configuration diagram is shown in FIG. 6, where S1- 1 window is configured in the first DTxW window, and the SI-2 window is configured in the second DTxW window.
  • the period of the DTxW window is 40 ms
  • the duration of the DTxW window is 4 ms
  • the length of each SI window is 4 ms
  • the period of the S1-1 window is 80 ms
  • the period of the SI-2 window is 160 ms.
  • the starting subframe offset of the SI-1 window in the period and the starting subframe offset of the SI-2 window in the period are calculated by using the method in the seventh step above.
  • a third embodiment of the present disclosure provides a method for transmitting system information, which is applied to a base station, and the method includes:
  • Step 701 Acquire configuration parameters of the radio link measurement window, determine a location of each SI window according to a configuration parameter of the radio link measurement window, and determine a configuration parameter of each SI window according to a window position of each SI.
  • the configuration parameters of the wireless link measurement window include: a period of a radio link measurement window, a subframe offset of the radio link measurement window during the period, and a duration of the radio link measurement window. time.
  • the wireless link measurement window is a DMTC window. Accordingly, the configuration parameters of the DMTC window include: the period of the DMTC window, the subframe offset of the DMTC window during the period, and the duration of the DMTC window.
  • the configuration parameters of the SI window include the period of the SI window, the basic subframe offset of the SI window in the period, and the length of the SI window.
  • Step 702 Send a discovery reference signal to the terminal.
  • the enhanced system information block in the DRS carries the configuration parameters of each SI window.
  • DMTC window starting subframe number dmtc-Offset mod 10;
  • T dmtc-Periodicity/10; where dmtc-Offset represents the subframe offset of the DMTC window in the period, and dmtc-Periodicity represents the period of the DMTC window.
  • Step 703 sending SI to the terminal through each SI window.
  • Each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the above step 701 includes four specific implementations.
  • the first information of the SI is not transmitted in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other.
  • the first implementation specifically includes the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DMTC window).
  • the periods of the SI windows may be different, but they are all integer multiples of the period of the DMTC window.
  • the subframe offset of the radio link measurement window (ie, the DMTC window) in the period is used as the basic subframe offset of the SI window in the period.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • N1 represents the number of SI windows configured in the wireless link measurement window (ie DMTC window). Specifically, the N1 may be the total number of SI windows, or may be smaller than the total number of SI windows. That is, all SI windows can be configured in the DMTC window, or some SI windows can be configured in the DMTC window.
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 1.
  • the basic subframe offset in the period of the SI window, the sequence number and the length in the SI message list may be substituted into the above formula.
  • the starting subframe offset of the SI window in the period is calculated.
  • the eSIB further includes a first information indicating that the terminal does not send the SI in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other. In addition, there is no strict sequence between the above steps.
  • the N-N1 SI windows are located outside the DMTC window.
  • the N-N1 SI window is configured outside the DMTC window to maximize the power consumption of the UE.
  • N is the total number of SI windows.
  • the base station can use the same Broadcast Radio Network Temporary Identity (RNTI), ie, the SI-RNTI scrambles the DCI of the scheduled eSIB and SI, and the UE receives the eSIB and SI using the SI-RNTI.
  • RNTI Broadcast Radio Network Temporary Identity
  • the transmission of the eSIB and the SI is independent of each other, and the DRS subframe can only transmit the eSIB without transmitting the SI, that is, the SI is configured in the non-DRS subframe of the DMTC window. Therefore, if there is a subframe in which the DRS is to be transmitted in the SI window, SI cannot be transmitted in the subframe.
  • the second information of the eSIB and the SI can be simultaneously transmitted in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other.
  • the second implementation specifically includes the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DMTC window).
  • the period of each SI window may be different, but it is the period of the DMTC window. Integer multiple.
  • the subframe offset of the radio link measurement window (ie, the DMTC window) in the period is used as the basic subframe offset of the SI window in the period.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • Duration represents the duration of the radio link measurement window (ie DMTC window)
  • N1 represents the number of SI windows configured in the radio link measurement window (ie DMTC window).
  • the N1 may be the total number of SI windows, or may be smaller than the total number of SI windows. That is, all SI windows can be configured in the DMTC window, or some SI windows can be configured in the DMTC window.
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 1.
  • the basic subframe offset in the period of the SI window, the sequence number and the length in the SI message list may be substituted into the above formula.
  • the starting subframe offset of the SI window in the period is calculated.
  • the eSIB further includes a second information for indicating that the terminal can simultaneously send the eSIB and the SI in the DRS subframe, and the transmissions of the eSIB and the SI are independent of each other. That is, it indicates that the eSIB and SI are allowed to be simultaneously transmitted in the DRS subframe, that is, the SI can be in the DMTC window.
  • There are subframes to be transmitted so only eSIB may be transmitted in the DRS subframe, and eSIB and one SI may be simultaneously transmitted. Since the DRS can be sent in any subframe in the DMTC window, the eSIB may be sent simultaneously with any SI window in which the SI is located in the DMTC window. In addition, there is no strict sequence between the above steps.
  • the base station may separately schedule the eSIB and the SI by using different downlink control information (DCI, Downlink Control Information), for example, using different sizes of DCI or different formats.
  • the DCI can also schedule eSIB and SI with the same DCI. That is, the downlink control information corresponding to the eSIB may be the same as or different from the DCI corresponding to the SI.
  • the DCI may be scrambled by using different broadcast RNTIs, that is, the UE uses different broadcast RNTIs to detect the eSIB and the SI.
  • the same broadcast RNTI that is, the SI-RNTI may also be used.
  • the DCI is added, that is, the UE uses the SI-RNTI to detect the eSIB and the SI.
  • the eSIB and the first SI are sent in the DRS subframe, and the specific steps include the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DMTC window).
  • each SI window in the first step refers to an SI window other than the SI window corresponding to the first SI.
  • the subframe offset of the radio link measurement window (ie, the DMTC window) in the period is used as the basic subframe offset of the SI window in the period.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • the starting frame number and the starting subframe number of the SI window except the SI window corresponding to the first SI are calculated.
  • Duration represents the duration of the radio link measurement window (ie DMTC window)
  • N1 represents the number of SI windows configured in the radio link measurement window (ie DMTC window).
  • x represents the starting subframe offset of the SI window in the period
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 2.
  • the eSIB further includes a third information for instructing the terminal to simultaneously send the eSIB and the first SI in the DRS subframe, and is used to indicate that the terminal does not send in the DRS subframe.
  • the fourth information of the SI other than the SI transmitted simultaneously with the eSIB that is, it indicates that the eSIB and the first SI are allowed to be simultaneously transmitted in the DRS subframe.
  • the period of the SI window corresponding to the first SI is an integer multiple of eSIB, and the first SI is fixedly configured, that is, configured to be sent simultaneously with the eSIB. In addition, there is no strict sequence between the above steps.
  • the N-N1 SI windows are located outside the DMTC window.
  • the N-N1 SI window is configured outside the DMTC window to maximize the power consumption of the UE.
  • N is the total number of SI windows.
  • the SI transmitted simultaneously with the eSIB may not be the first SI but other SIs.
  • the eSIB and the same are sent in the DRS subframe.
  • the base station can separately schedule the eSIB and the SI by using different downlink control information, for example, using DCIs of different sizes or DCIs of different formats, or scheduling the eSIBs and SIs by the same DCI. That is, the downlink control information corresponding to the eSIB may be the same as or different from the DCI corresponding to the SI.
  • the DCI may be scrambled by using different broadcast RNTIs, that is, the UE uses different broadcast RNTIs to detect the eSIB and the SI.
  • the same broadcast RNTI, that is, the SI-RNTI may also be used.
  • the DCI is added, that is, the UE uses the SI-RNTI to detect the eSIB and the SI.
  • all SI windows are configured in K wireless link measurement windows, and in this implementation, the configuration parameters of the SI window further include the period of the wireless link measurement window and the K wireless links.
  • the number of SI windows configured in each wireless link measurement window of the measurement window specifically includes the following steps:
  • the period of each SI window is set to an integral multiple of the period of the radio link measurement window (ie, the DMTC window), and the period of each SI window is greater than or equal to K times the period of the radio link measurement window.
  • the periods of the SI windows may be different, but they are all integer multiples of the period of the DMTC window.
  • the subframe offset of the radio link measurement window (ie, the DMTC window) in the period is used as the basic subframe offset of the SI window in the period.
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the SI window starting subframe number.
  • Duration represents the duration of the radio link measurement window (ie DMTC window)
  • N2 represents each radio link measurement window in the K radio link measurement windows (ie DMTC window) (ie The number of SI windows configured in the DMTC window).
  • the sixth step and the seventh step there are two methods for calculating the starting subframe offset of each SI window in the period, which are the sixth step and the seventh step, respectively, and therefore, the sixth step and the seventh step. Steps are a side-by-side step, and you can choose one.
  • n the sequence number of the SI window in the SI message list.
  • N2 represents the number of SI windows configured in each radio link measurement window (ie, DMTC window) in K radio link measurement windows (ie, DMTC window)
  • m represents SI window in the kth wireless chain
  • Periodicity indicates the period of the radio link measurement window (ie, the DMTC window)
  • Offset indicates the basic subframe offset of the SI window in the period.
  • x' represents the virtual start subframe offset of the SI window in the SI period
  • n represents the sequence number of the SI window in the SI message list, and n is greater than or equal to 1
  • x represents the starting subframe offset of the SI window
  • N2 represents the number of SI windows configured in each radio link measurement window of the K radio link measurement windows
  • Offset represents the basic subframe offset of the SI window in the period
  • Periodicity represents the period of the radio link measurement window.
  • the foregoing eSIB further includes a fifth information for instructing the terminal to configure all the SI windows in the K radio link measurement windows, and there is no strict sequence between the foregoing steps.
  • this implementation supports a non-continuous configuration of the SI window, ie, an interval may occur between the two SI windows.
  • the position and configuration parameters of each SI window are determined using a fourth implementation described above with one specific example.
  • all SI windows are non-contiguously configured, wherein the number of SI windows is 2, specifically S1-1 window and SI-2 window, and a specific configuration diagram is shown in FIG. 8, where S1- 1 window is configured in the first DMTC window, and the SI-2 window is configured in the second DMTC window.
  • the period of the DMTC window is 80ms
  • the duration of the DMTC window is 4ms
  • the subframe offset of the DMTC window is 5ms
  • the length of each SI window is 4ms
  • the period of the S1-1 window is 160ms
  • SI-2 The window has a period of 320ms.
  • the starting subframe offset of the SI-1 window in the period and the starting subframe offset of the SI-2 window in the period are calculated by using the seventh step described above.
  • a fourth embodiment of the present disclosure provides an apparatus for transmitting system information, which is applied to a base station, and the apparatus includes:
  • a first processing module 901 configured to determine a location of an SI window corresponding to each system information SI, and determine a configuration parameter of each SI window according to a window position of each SI;
  • a first sending module 902 configured to send a discovery reference signal DRS to the terminal, where the enhanced system information block eSIB in the DRS carries configuration parameters of each SI window;
  • the second sending module 903 is configured to send the SI to the terminal through each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the first processing module 901 includes:
  • an obtaining unit configured to acquire configuration parameters of the wireless link measurement window, and determine a location of each SI window according to a configuration parameter of the wireless link measurement window.
  • the configuration parameters of the radio link measurement window include: a period of the radio link measurement window, a subframe offset of the radio link measurement window during the period, and a duration of the radio link measurement window.
  • the configuration parameter of the SI window includes a period of the SI window, a basic subframe offset of the SI window in the period, and a length of the SI window.
  • the first processing module 901 includes:
  • a first setting unit configured to set a period of each SI window to an integer multiple of a period of the wireless link measurement window
  • a second setting unit configured to use a subframe offset of the radio link measurement window in a period as a basic subframe offset of the SI window in the period;
  • the eSIB further includes: first information indicating that the terminal does not send the SI in the DRS subframe, or second information indicating that the terminal can simultaneously send the eSIB and the SI in the DRS subframe;
  • the processing module 901 further includes:
  • the eSIB further includes a third information for indicating that the terminal simultaneously sends the eSIB and the first SI in the DRS subframe, and is used to indicate that the terminal does not send the SI that is sent simultaneously with the eSIB in the DRS subframe.
  • the fourth information of the SI other than the first information; the first processing module 901 further includes:
  • the downlink control information DCI corresponding to the eSIB is the same as or different from the DCI corresponding to the SI, and if the DCI corresponding to the eSIB is different from the DCI corresponding to the SI, the eSIB
  • the corresponding DCI and SI corresponding DCI use the same or no phase
  • the same wireless network temporary identifier RNTI scrambles.
  • the eSIB further includes a fifth information for instructing the terminal to configure all the SI windows in the K radio link measurement windows; the configuration parameters of the SI window further include the period of the radio link measurement window and the K The number of SI windows configured in each radio link measurement window of the radio link measurement window is greater than or equal to K times the period of the radio link measurement window.
  • the first processing module 901 further includes:
  • the wireless link measurement window configures the DMTC window for the DRS transmission DTxW window or the discovery signal measurement time.
  • the terminal can attempt to receive system information while performing wireless link measurement, thereby solving the problem that the terminal needs to open the receiver outside the wireless link measurement window and increase the power consumption of the terminal.
  • the apparatus for transmitting system information provided by the fourth embodiment of the present disclosure is an apparatus for applying the foregoing method for transmitting system information applied to a base station, that is, all the embodiments of the method for transmitting system information applied to the base station are applicable.
  • the device can achieve the same or similar benefits.
  • a fifth embodiment of the present disclosure provides a base station, where the base station includes:
  • the processor 1001 is configured to determine a location of an SI window corresponding to each system information SI, and determine a configuration parameter of each SI window according to a window position of each SI;
  • the transmitter 1002 is connected to the processor 1001, and is configured to: send a discovery reference signal DRS to the terminal, where the enhanced system information block eSIB in the DRS carries configuration parameters of each SI window;
  • the transmitter 1002 is further configured to send the SI to the terminal through each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the base station configures a part of the SI window in each SI window in the DMTC window or the DTxW window, so that the terminal can try to receive system information while performing wireless link measurement, thereby solving the terminal.
  • the problem that the receiver needs to be turned on outside the wireless link measurement window to increase the power consumption of the terminal achieves the effect of saving the power consumption of the UE and prolonging the usage time of the UE battery.
  • the base station can perform SI configuration in the wireless measurement window and outside the wireless window respectively, and the SI configured in the wireless measurement window and outside the wireless measurement window are independent of each other, and have different SI window calculation criteria.
  • the base station can configure the SI window in the wireless measurement window by using the methods in Embodiment 1 to Embodiment 3.
  • the base station includes two sets of SI scheduling information in the eSIB, corresponding to the SIs configured in the wireless measurement window and outside the wireless window.
  • the same SIB can be SI in the wireless measurement window respectively
  • the SI transmission outside the wireless measurement window, the SIB included in the SI within the wireless measurement window and outside the wireless measurement window may be the same or different.
  • the number of SIs sent by the base station in the wireless measurement window is two, and the number of SIs sent outside the wireless measurement window is three.
  • a total of nine SIBs are sent: SIB3/SIB4/SIB5/ SIB6/SIB7/SIB8/SIB9/SIB10/SIB11.
  • the SIB included in the SI-1 configured by the base station in the radio measurement window includes SIB3/SIB4/SIB5, and SI-2 includes SIB6/SIB7/SIB8/SIB9/SIB10/SIB11; SI-1 configured outside the radio measurement window includes SIB3/ SIB4/SIB5, SI-2 includes SIB6/SIB7/SIB8, and SI-3 includes SIB9/SIB10/SIB11.
  • the UE may choose to receive in the wireless measurement window or receive it outside the wireless measurement window. For example, a UE that requires high power saving performance may select to receive the SIB in the wireless measurement window, and the broadcast reception delay. A more demanding UE may choose to receive the SIB outside of the wireless measurement window.
  • a sixth embodiment of the present disclosure provides a method for transmitting a system information message, which is applied to a terminal, and the method includes:
  • Step 1101 Receive a discovery reference signal sent by the base station.
  • the enhanced system information block in the DRS carries configuration parameters of the SI window corresponding to each system information.
  • the configuration parameters of the SI window include the period of the SI window, the basic subframe offset of the SI window in the period, and the length of the SI window.
  • Step 1102 Determine the location of each SI window according to the configuration parameters of the SI window.
  • Step 1103 Receive SI sent by the base station from each SI window.
  • Each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located.
  • the wireless link measurement window includes: a DMTC window and a DTxW window. Therefore, the SI window of the serving cell can be configured within the DMTC window or within the DTxW window.
  • the terminal can try to receive system information while performing radio link measurement, thereby saving.
  • step 1102 includes the following four implementations. formula.
  • the eSIB further includes a first information for indicating that the terminal does not send the SI in the DRS subframe, and the first implementation manner specifically includes the following steps:
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the starting subframe number of the SI window.
  • x represents the starting subframe offset of the SI window in the period
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • w Indicates the length of the SI window. Specifically, when it is required to calculate a starting subframe offset of a certain SI in a period, the base subframe offset in the period, the sequence number and the length in the SI message list are substituted into the above formula to calculate the The starting subframe offset of the SI window during the period.
  • the UE can detect the eSIB and SI using the same Broadcast Radio Network Temporary Identity (RNTI), ie, SI-RNTI.
  • RNTI Broadcast Radio Network Temporary Identity
  • the manner of determining the location of each SI window is the same as that of the first implementation described above, and the difference is that the eSIB further includes a means for indicating that the terminal can simultaneously send the eSIB and the SI in the DRS subframe.
  • the second message is the same as that of the first implementation described above, and the difference is that the eSIB further includes a means for indicating that the terminal can simultaneously send the eSIB and the SI in the DRS subframe.
  • the eSIB further includes a third information for indicating that the terminal simultaneously sends the eSIB and the first SI in the DRS subframe, and is used to indicate that the terminal does not send the eSIB in the DRS subframe.
  • the fourth information of the SI other than the SI that is simultaneously transmitted, and the third implementation specifically includes The following steps:
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the starting subframe number of the SI window.
  • the first step and the second step are only used to calculate the starting frame numbers of the SI windows other than the SI window corresponding to the first SI in each SI window. Start subframe number.
  • x represents the starting subframe offset of the SI window in the period
  • Offset represents the basic subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list
  • n is greater than or equal to 2
  • w Indicates the length of the SI window. Specifically, when it is required to calculate a starting subframe offset of a certain SI window in a period, the basic subframe offset in the period of the SI window, the sequence number and the length in the SI message list are substituted into the above formula, and then the equation can be calculated. The starting subframe offset of the SI window during the period.
  • the UE may detect the eSIB and the SI by using different broadcast RNTIs, and may also detect the eSIB and the same broadcast RNTI. SI; and if the base station schedules eSIB and SI with the same DCI, the UE detects the eSIB and SI using the SI-RNTI.
  • the eSIB further includes a fifth information for instructing the terminal to configure all the SI windows in the K radio link measurement windows, and the configuration parameters of the SI window further include the radio link measurement window.
  • the fourth implementation specifically includes the following steps:
  • SI-Periodicity represents the period of the SI window
  • x represents the starting subframe offset of the SI window in the period.
  • the SI window starting frame number can be calculated by substituting the period of the SI window and the starting subframe offset in the period into the above formula.
  • the starting subframe offset of the SI window in the period is substituted into the above formula to calculate the starting subframe number of the SI window.
  • the method includes two methods for calculating a starting subframe offset of each SI window in a period, which are respectively the third step and the fourth step described below, and therefore, the following third step and The fourth step is a parallel method. You can choose one of them.
  • x represents the starting subframe offset of the SI window in the period
  • n represents the sequence number of the SI window in the SI message list.
  • N2 represents the number of SI windows configured in each radio link measurement window of the K radio link measurement windows
  • m represents the SI window sequence number of the SI window in the kth radio link measurement window
  • Offset represents the basic subframe offset of the SI window during the period
  • w represents the length of the SI window.
  • x' represents the virtual start subframe offset of the SI window in the SI period
  • n represents the sequence number of the SI window in the SI message list, and n is greater than or equal to 1
  • w represents the length of the SI window
  • x represents the SI window Start subframe offset
  • N2 represents each wireless link measurement window in K wireless link measurement windows
  • Offset represents the basic subframe offset of the SI window in the period
  • Periodicity represents the period of the wireless link measurement window.
  • the radio link measurement window may be a DMTC window or a DTxW window.
  • the position of the DTxW window can be calculated by:
  • T dtxw-Periodicity/10, where dtxw-Periodicity represents the period of the DTxW window.
  • the location of the DMTC window can be calculated by:
  • DMTC window starting subframe number dmtc-Offset mod 10;
  • T dmtc-Periodicity/10; where dmtc-Offset represents the subframe offset of the DMTC window in the period, and dmtc-Periodicity represents the period of the DMTC window.
  • a seventh embodiment of the present disclosure provides an apparatus for transmitting a system information message, which is applied to a terminal, and the apparatus includes:
  • the first receiving module 1201 is configured to receive a discovery reference signal DRS sent by the base station, where the enhanced system information block eSIB in the DRS carries configuration parameters of the SI window corresponding to each system information SI.
  • a second processing module 1202 configured to determine a location of each SI window according to a configuration parameter of the SI window
  • the second receiving module 1203 is configured to receive the SI sent by the base station from each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located. in.
  • the configuration parameters of the SI window include a period of the SI window, a basic subframe offset of the SI window in the period, and a length of the SI window.
  • the second processing module 1202 includes:
  • the eSIB further includes a first information indicating that the terminal does not send the SI in the DRS subframe, or a second information indicating that the terminal can simultaneously send the eSIB and the SI in the DRS subframe;
  • the second processing module 1202 further includes:
  • the eSIB further includes a third information for indicating that the terminal simultaneously sends the eSIB and the first SI in the DRS subframe, and is used to indicate that the terminal does not send in the DRS subframe, but is sent simultaneously with the eSIB.
  • the fourth information of the SI other than the SI; the second processing module 1202 further includes:
  • the configuration parameter of the SI window further includes a period of the radio link measurement window and the K The number of SI windows configured in each wireless link measurement window of the wireless link measurement window; the second processing module 1202 further includes:
  • the number of SI windows configured in each radio link measurement window, m indicates the SI window sequence number of the SI window in the kth radio link measurement window, and Periodicity indicates the period of the radio link measurement window Offset represents the basic subframe offset of the SI window in the period, and w represents the length of the SI window;
  • the virtual start subframe offset within, n represents the sequence number of the SI window in the SI message list, and n is greater than or equal to 1, and w represents the length of the SI window;
  • the wireless link measurement window configures the DMTC window for the DRS transmission DTxW window or the discovery signal measurement time.
  • the terminal can try to receive system information while performing radio link measurement, thereby saving.
  • the apparatus for transmitting system information provided by the seventh embodiment of the present disclosure is an apparatus that applies the above-described method for transmitting system information applied to a terminal, that is, all the embodiments of the method for transmitting system information applied to the terminal are applicable.
  • the device can achieve the same or similar benefits.
  • an eighth embodiment of the present disclosure provides a terminal, including:
  • the receiver 1301 is configured to receive a discovery reference signal DRS sent by the base station, where the enhanced system information block eSIB in the DRS carries configuration parameters of the SI window corresponding to each system information SI.
  • the processor 1302 is connected to the receiver 1301, and is configured to implement the following functions: according to the SI window. Configuration parameters to determine the location of each SI window;
  • the receiver 1301 is further configured to receive the SI sent by the base station from each SI window, where each SI window corresponds to one SI, and a part of the SI window in each SI window is configured in a radio link measurement window of the serving cell where the terminal is located. .
  • the terminal can try to receive system information while performing radio link measurement, thereby saving.
  • the UE in the embodiment of the present disclosure may be a mobile phone (or mobile phone), or other device capable of transmitting or receiving a wireless signal, including a user equipment (terminal), a personal digital assistant (PDA), and wireless modulation.
  • a user equipment terminal
  • PDA personal digital assistant
  • Mediator wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, client terminal equipment (CPE) or portable broadband wireless device (Mifi) capable of converting mobile signals into wifi signals, A smart home appliance or other device that can spontaneously communicate with a mobile communication network without human operation.

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Abstract

本公开提供了一种发送系统信息的方法、装置、基站及终端,其中,该方法包括:确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;向终端发送发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个SI窗口的配置参数;通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。

Description

一种发送系统信息的方法、装置、基站及终端
相关申请的交叉引用
本申请主张在2016年5月27日在中国提交的中国专利申请号No.201610366233.2的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,特别涉及一种发送系统信息的方法、装置、基站及终端。
背景技术
MulteFire是一种新的基于长期演进(LTE,Long Term Evolution)的无线接入技术,该技术可以不借助授权频段载波独立运行于非授权频谱中。MulteFire将LTE扩展到非授权频谱中,为了与WiFi设备公平竞争非授权频段信道资源,MulteFire物理层引入类似WiFi的载波监听技术的先听后说(LBT,Listen Before Talk)机制。其中,在基站或终端监听到非授权频段信道被占用(即LBT失败)时,停止发送信号,当监听到信道空闲(即LBT成功)时,才发送信号。
为了提高LBT机制下基站的下行公共控制信号传输效率,MulteFire引入了发现参考信号(DRS,Discovery Reference Signal),DRS包含了主要的下行公共控制信号,包括系统广播、主同步信号(PSS,Primary Sync Signal)、辅同步信号(SSS,Secondary Sync Signal)、增强主同步信号(ePSS,enhanced Primary Sync Signal)、增强辅同步信号(eSSS,enhanced Secondary Sync Signal)、小区参考信号(CRS,Cell Reference Signal)、主系统信息块(MIB,Master Information Block)和增强的系统信息块(eSIB,enhanced System Information Block),DRS占用一个下行子帧中的12个或14个符号(Symbol)。DRS在DRS传输窗口(DTxW,DRS Transmission Window)中传输,当基站的LBT成功时,基站在DTxW内发送一次DRS。DTxW的长度为1到10毫秒(ms),根据LBT结果,基站可能在DTxW内任意子帧发送DRS,DTxW出现的周期最小为40ms, 并且必须为40ms的整数倍。终端(UE)在DTxW内检测DRS以进行下行同步、接收MIB和eSIB。
在LTE系统中,基站在每个下行子帧中都发送CRS,每个子帧都可作为无线链路检测和测量样本(Sample)。终端通过测量CRS信号的参考信号接收质量(RSRQ,Reference Signal Receive Quality)评估下行信道质量。在Multefire系统中,基站只在DRS所在的子帧或者在其他有物理下行共享信道(PDSCH,Physical Downlink Shared Channel)发送的子帧发送CRS,图1为MulteFire系统中UE检测到的CRS示意图。
此外,Multefire还引入了发现信号测量时间配置(DMTC,Discovery Signals Measurement Timing Configuration),DMTC配置指示UE在周期出现的DMTC窗口对服务小区和临小区的参考信号进行测量,用于无线链路质量监测、小区选择、小区重选或切换。基站可以为MF服务小区、与MF服务小区同频的MF临小区以及与MF服务小区异频的MF临小区配置独立的DMTC。由于Multefire系统只能保证在DTxW内的DRS子帧发送CRS,因此每个频点、小区的DMTC窗口必须包含对应频点、小区的DRS子帧以保证对该频点、小区中的DRS子帧的CRS的测量,其中,DMTC窗口长度为1ms-10ms。UE只在服务小区的DMTC、同频临小区的DMTC和异频临小区的DMTC内进行无线链路质量测量。
在LTE系统中,每个系统信息(SI)消息只在一个SI窗口(SI-windows)中传输:一个SI消息跟一个SI窗口相关联,该SI窗口内只能发这个SI消息且可以重复发送多次,在SI窗口内发多少次SI消息,在哪些子帧上发送等,取决于基站的实现,但不能发送其它SI消息。所有SI消息的SI窗口长度都相同;且如果两个窗口对应的SI的顺序是相邻的话,SI窗口之间是紧挨着的,既不相互重叠也没有间隔;不同SI消息的周期是独立配置的。
其中,SI窗口的长度由SIB1中的SystemInformationBlockType1的si-WindowLength字段指定,以ms为单位。SystemInformationBlockType1的schedulingInfoList指定了SI消息的列表,每个SI消息在该列表中的顺序以n表示(从1开始)。假如schedulingInfoList中指定了4个SI消息,则会有4个连续的SI窗口用于发送这4个SI消息,而n表明了SI消息在第几个SI窗口。此时每个SI 消息有一个起始子帧偏移计算公式x=(n-1)*w,其中w为SI窗口长度,x为起始子帧偏移,以ms为单位;则SI窗口的起始帧(SFN)满足SFN%T=FLOOR(x/10),SI窗口的起始子帧号(a)满足a=x%10,其中T为对应SI消息的周期,由SI的周期指定(以10ms为单位)。SFN%T保证了SI的周期,FLOOR(x/10)确定SI窗口在SI周期内的起始无线帧偏移。其中,一个无线帧为10ms。
其中,x决定了SI窗口在该SI周期内的起始帧和起始子帧,SFN%T保证了SI窗口在SI周期内只出现一次,而x=(n-1)*w保证了SI窗口之间不重叠,没有空隙。
当SI窗口确定了以后,基站会决定在每个SI的窗口内发送多少次SI,具体发送的次数根据基站的实现可能不同。但在SFN%2=0的无线帧内的子帧5,由于要用于传输SIB1,因此不能传输SI。
SI窗口从SFN0开始,每个SI窗口长度可选择ms1,ms2,ms5,ms10,ms15,ms20,ms40,SI周期可能为80ms,160ms,320ms,640ms,1280ms,2560ms,5120ms。空闲(IDLE)状态的UE在SI窗口中的每个子帧检测SI无线网络临时标识(SI-RNTI),接收该SI的消息。系统信息的SI窗口可以根据周期配置在任意位置。
在LTE系统中,IDLE状态下的UE可以在任何子帧进行无线链路测量,每个UE进行无线链路测量的时间不同,因此系统信息的SI窗口无论配置在任何位置都不能达到省电的目的。但对于间断性发送小区参考信号的无线通信系统(例如MF系统),小区中所有UE只在指定时间窗口内进行无线链路测量,如果将现有系统信息的配置用于此类系统中,将导致UE在无线链路测量窗口外开启接收机,增大UE的功耗。
发明内容
本公开实施例的目的在于提供一种发送系统信息的方法、装置、基站及终端,解决了终端需要在无线链路测量窗口外开启接收机,增大终端的功耗的问题。
为了达到上述目的,本公开的实施例提供了一种发送系统信息的方法, 应用于基站,该方法包括:
确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
向终端发送发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个SI窗口的配置参数;
通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
本公开的实施例还提供了一种发送系统信息的装置,应用于基站,该装置包括:
第一处理模块,用于确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
第一发送模块,用于向终端发送发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个SI窗口的配置参数;
第二发送模块,用于通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
本公开的实施例还提供过了一种基站,包括:
处理器,用于确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
发送机,与处理器连接,用于实现如下功能:向终端发送发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个SI窗口的配置参数;
发送机,还用于通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
本公开的实施例还提供了一种发送系统信息消息的方法,应用于终端,该方法包括:
接收基站发送的发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
根据SI窗口的配置参数,确定出每个SI窗口的位置;
从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
本公开的实施例还提供了一种发送系统信息消息的装置,应用于终端,该装置包括:
第一接收模块,用于接收基站发送的发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
第二处理模块,用于根据SI窗口的配置参数,确定出每个SI窗口的位置;
第二接收模块,用于从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
本公开的实施例还提供了一种终端,包括:
接收机,用于接收基站发送的发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
处理器,与接收机连接,用于实现如下功能:根据SI窗口的配置参数,确定出每个SI窗口的位置;
接收机,还用于从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
本公开的上述方案至少包括以下有益效果:
在本公开的实施例中,通过将各SI对应的SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中,使得终端在进行无线链路测量的同时尝试接收系统信息,解决了终端需要在无线链路测量窗口外开启接收机,增大终端的功耗的问题,达到了节省UE的功耗、延长UE电池的使用时间的效果。
附图说明
图1为MulteFire系统中UE检测到的CRS示意图;
图2为本公开第一实施例中发送系统信息的方法的流程图;
图3为本公开第二实施例中发送系统信息的方法的流程图;
图4为本公开第二实施例中第一种实现方式第一个实例中SI窗口的配置示意图;
图5为本公开第二实施例中第一种实现方式中第二个实例中SI窗口的配置示意图;
图6为本公开第二实施例中第四种实现方式中实例中SI窗口的配置示意图;
图7为本公开第三实施例中发送系统信息的方法的流程图;
图8为本公开第三实施例中第四种实现方式中实例中SI窗口的配置示意图;
图9为本公开第四实施例中发送系统信息的装置的结构示意图;
图10为本公开第五实施例中基站的结构示意图;
图11为本公开第六实施例中发送系统信息的方法的流程图;
图12为本公开第七实施例中发送系统信息的装置的结构示意图;
图13为本公开第八实施例中终端的结构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
本公开针对相关技术中将系统信息的配置用于间断性发送小区参考信号的无线通信系统时,导致UE需要在无线链路测量窗口外开启接收机,增大UE的功耗的问题。本公开的下述实施例提供了一种发送系统信息的方法、装置、基站及终端,通过将部分SI窗口配置在无线链路测量窗口中,使UE在进行无线链路测量的同时尝试接收系统信息,从而达到节省UE的功耗、延长UE电池的使用时间的效果。
第一实施例
如图2所示,本公开的第一实施例提供了一种发送系统信息的方法,应用于基站,该方法包括:
步骤201,确定每个系统信息对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数。
步骤202,向终端发送发现参考信号。
其中,DRS中的增强的系统信息块(eSIB)中携带每个SI窗口的配置参数。
步骤203,通过各SI窗口向终端发送SI。
其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
在本公开的第一实施例中,对于间断性发送小区参考信号的无线通信系统(例如MF系统)而言,UE只在指定时间窗口内进行无线链路测量。因此基站可以通过获取UE在服务小区的无线链路测量窗口的配置参数,确定出每个SI窗口的位置,以便将服务小区的SI窗口配置在服务小区的无线链路测量窗口中。而由于无线链路测量窗口包括:DMTC窗口和DTxW窗口。因此,可将服务小区的SI窗口配置在DMTC窗口内或者DTxW窗口内。即,上述无线链路测量窗口为DMTC窗口或者DTxW窗口。
由此可见,在本公开的第一实施例中,通过将各SI窗口中的部分SI窗口配置于DMTC窗口内或者DTxW窗口内,使得终端可以在进行无线链路测量的同时尝试接收系统信息,解决了终端需要在无线链路测量窗口外开启接收机,增大终端的功耗的问题,达到了节省UE的功耗、延长UE电池的使用时间的效果。
第二实施例
如图3所示,本公开的第二实施例提供了一种发送系统信息的方法,应用于基站,该方法包括:
步骤301,获取无线链路测量窗口的配置参数,根据无线链路测量窗口的配置参数,确定每个SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数。
在本公开的第二实施例中,上述无线链路测量窗口的配置参数包括:无 线链路测量窗口的周期、无线链路测量窗口在周期内的子帧偏移以及无线链路测量窗口的持续时间。需要说明的是,在本公开的第二实施例中,上述无线链路测量窗口为DTxW窗口。相应地,DTxW窗口的配置参数包括:DTxW窗口的周期、DTxW窗口在周期内的子帧偏移以及DTxW窗口的持续时间。
此外,上述SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度。
步骤302,向终端发送发现参考信号。
其中,DRS中的增强的系统信息块中携带每个SI窗口的配置参数。
需要说明的是,DTxW窗口起始帧号mod T=0;
DTxW窗口起始子帧号=0;
T=dtxw-Periodicity/10,其中,dtxw-Periodicity表示DTxW窗口的周期。
步骤303,通过各SI窗口向终端发送SI。
其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
在本公开的第二实施例中,上述步骤301包括四种具体的实现方式。
其中,在第一种实现方式中,DRS子帧中不发送SI的第一信息,且eSIB和SI的传输相互独立。且该第一种实现方式具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DTxW窗口)的周期的整数倍。
其中,各SI窗口的周期可能各不相同,但其均为DTxW窗口的周期的整数倍。
第二步,将无线链路测量窗口(即DTxW窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
其中,DTxW窗口在周期内的子帧偏移为0,即,每个SI窗口在周期内的基本子帧偏移均为0。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表 示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
第五步,通过公式w=FLOOR(Duration/N1)计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DTxW窗口)的持续时间,N1表示配置于无线链路测量窗口(即DTxW窗口)中的SI窗口的数量。具体地,该N1可以为SI窗口的总数,也可以小于SI窗口的总数。即,可将所有SI窗口全配置于DTxW窗口中,也可将部分SI窗口配置于DTxW窗口中。
第六步,通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
其中,在第一种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,且eSIB和SI的传输相互独立。此外,上述各个步骤之间没有严格的先后顺序。
需要说明的是,当只有部分SI窗口配置在DTxW窗口中时,且假设前N1个SI窗口位于DTxW窗口内,后N-N1个SI窗口位于DTxW窗口外。此时若序号越靠后的SI窗口出现的周期越大,在空口中的传输频率越低,那么将后N-N1个SI窗口配置在DTxW窗口外能最大程度地节省UE的功耗。其中,N为SI窗口的总数。
此外,基站可以使用相同的广播无线网络临时标识(RNTI),即SI-RNTI 对调度eSIB和SI的下行控制信息(DCI,Downlink Control Information)进行加扰,UE使用SI-RNTI接收eSIB和SI。而由于eSIB与SI的传输相互独立,并且DRS子帧只能发送eSIB不发送SI,即将SI配置在DTxW窗口的非DRS子帧中。因此在SI窗口中如果有要传输DRS的子帧,则该子帧不能传输SI。
在本公开的第二实施例中,以两个具体实例阐述使用上述第一种实现方式确定每个SI窗口的位置和配置参数。
在第一个实例中,将所有SI窗口全配置于DTxW窗口中,其具体的配置示意图如图4所示,其中,DTxW窗口的周期为40毫秒(ms),DTxW窗口的持续时间为4ms,每个SI窗口的长度为2ms,SI窗口的个数为2,具体为S1-1窗口和SI-2窗口,且S1-1窗口的周期为80ms,SI-2窗口的周期为160ms。且SI-1窗口在周期内的起始子帧偏移x=0,起始位置满足;SI-1窗口起始帧帧号%8=0;SI-1窗口起始子帧号=0;SI-2窗口在周期内的起始子帧偏移x=2,起始位置满足;SI-2窗口起始帧帧号%16=0;SI-2窗口起始子帧号=2。
在第二个实例中,将部分SI窗口配置于DTxW窗口中,其具体的配置示意图如图5所示,其中,SI窗口的总数为2,具体为S1-1窗口和SI-2窗口,且将SI-1窗口配置在DTxW窗口内,将SI-2窗口配置在DTxW窗口外。DTxW窗口的周期为40ms,DTxW窗口的持续时间为4ms,每个SI窗口的长度为4ms,S1-1窗口的周期为80ms,SI-2窗口的周期为160ms。SI-1窗口在周期内的起始子帧偏移x=0,起始位置满足;SI-1窗口起始帧帧号%8=0;SI-1窗口起始子帧号=0;SI-2窗口在周期内的起始子帧偏移x=4,起始位置满足;SI-2窗口起始帧帧号%16=0;SI-2窗口起始子帧号=4。
在第二种实现方式中,DRS子帧中能够同时发送eSIB和SI的第二信息,且eSIB和SI的传输相互独立。且该第二种实现方式具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DTxW窗口)的周期的整数倍。
其中,各SI窗口的周期可能各不相同,但其均为DTxW窗口的周期的整数倍。
第二步,将无线链路测量窗口(即DTxW窗口)在周期内的子帧偏移作 为SI窗口在周期内的基本子帧偏移。
其中,DTxW窗口在周期内的子帧偏移为0,即,每个SI窗口在周期内的基本子帧偏移均为0。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
第五步,通过公式w=FLOOR(Duration/N1)计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DTxW窗口)的持续时间,N1表示配置于无线链路测量窗口(即DTxW窗口)中的SI窗口的数量。具体地,该N1可以为SI窗口的总数,也可以小于SI窗口的总数。即,可将所有SI窗口全配置于DTxW窗口中,也可将部分SI窗口配置于DTxW窗口中。
第六步,通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
其中,在第二种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息,且eSIB和SI的传输相互独立。即,表明允许在DRS子帧中同时发送eSIB和SI,即,SI可以在DTxW窗口的所 有子帧中发送,因此在DRS子帧中可能只发送eSIB,也可能同时发送eSIB和一个SI。而由于DRS可以在DTxW窗口中任何一个子帧发送,因此eSIB可能与SI位于DTxW窗口内的任何一个SI窗口同时发送。此外,上述各个步骤之间没有严格的先后顺序。
需要说明的是,若在DRS子帧中同时发送eSIB和一个SI,基站可以用不同的下行控制信息(DCI,Downlink Control Information)分别对eSIB和SI进行调度,例如用不同大小的DCI或不同格式的DCI,也可以同一个DCI对eSIB和SI进行调度。即,eSIB对应的下行控制信息与该SI对应的DCI可以相同,也可以不相同。其中,当基站用不同的DCI调度eSIB和SI时,可以使用不同的广播RNTI对DCI进行加扰,即UE使用不同的广播RNTI检测eSIB和SI;也可以使用相同的广播RNTI,即SI-RNTI对DCI进行加饶,即UE使用SI-RNTI检测eSIB和SI。
在第三种实现方式中,在DRS子帧中发送eSIB和第一个SI,且其具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DTxW窗口)的周期的整数倍。
其中,各SI窗口的周期可能各不相同,但其均为DTxW窗口的周期的整数倍。需要说明的是,第一步中的各SI窗口是指除了第一个SI对应的SI窗口以外的其他SI窗口。
第二步,将无线链路测量窗口(即DTxW窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
其中,DTxW窗口在周期内的子帧偏移为0,即,每个SI窗口在周期内的基本子帧偏移均为0。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
需要说明的是,上述第三步和第四步中计算的是除第一个SI对应的SI窗口以外的其他SI窗口的起始帧号和起始子帧号。
第五步,通过公式w=FLOOR(Duration/(N1-1)),计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DTxW窗口)的持续时间,N1表示配置在无线链路测量窗口(即DTxW窗口)内的SI窗口的数量。
第六步,通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式,即可算出该SI窗口在周期内的起始子帧偏移。
其中,在第三种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息。即,表明允许在DRS子帧中同时发送eSIB和第一个SI。其中,该第一个SI对应的SI窗口的周期是eSIB的整数倍,且第一个SI是固定配置的,即配置其与eSIB同时发送。此外,上述各个步骤之间没有严格的先后顺序。
需要说明的是,当只有部分SI窗口配置在DTxW窗口中时,且假设前N1个SI窗口位于DTxW窗口内,后N-N1个SI窗口位于DTxW窗口外。此时若序号越靠后的SI窗口出现的周期越大,在空口中的传输频率越低,那么将后N-N1个SI窗口配置在DTxW窗口外能最大程度地节省UE的功耗。其中,N为SI窗口的总数。
此外,在第三种实现方式中,与eSIB同时发送的SI也可以不是第一个SI,而是其他SI。但需要进一步说明的是,在DRS子帧中同时发送eSIB和SI时,基站可以用不同的下行控制信息分别对eSIB和SI进行调度,例如用不同大小的DCI或不同格式的DCI,也可以同一个DCI对eSIB和SI进行调度。即,eSIB对应的下行控制信息与该SI对应的DCI可以相同,也可以不相同。其中,当基站用不同的DCI调度eSIB和SI时,可以使用不同的广播RNTI对DCI进行加扰,即UE使用不同的广播RNTI检测eSIB和SI;也可以使用相同的广播RNTI,即SI-RNTI对DCI进行加饶,即UE使用SI-RNTI检测eSIB和SI。
在第四种实现方式中,所有SI窗口配置在K个无线链路测量窗口内,且在该实现方式中,SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量。且该第四种实现方式具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DTxW窗口)的周期的整数倍,且每个SI窗口的周期大于或等于无线链路测量窗口的周期的K倍。
其中,各SI窗口的周期可能各不相同,但其均为DTxW窗口的周期的整数倍。
第二步,将无线链路测量窗口(即DTxW窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
其中,DTxW窗口在周期内的子帧偏移为0,即,每个SI窗口在周期内的基本子帧偏移均为0。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口 起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
第五步,通过公式w=FLOOR(Duration/N2),计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DTxW窗口)的持续时间,N2表示在K个无线链路测量窗口(即DTxW窗口)中每个无线链路测量窗口(即DTxW窗口)中配置的SI窗口的数量。
在第四种实现方式中,有两种计算每个SI窗口在周期内的起始子帧偏移的方法,分别为下述的第六步和第七步,因此,第六步和第七步属于并列步骤,二选一即可。
第六步,通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在K个无线链路测量窗口(即DTxW窗口)每个无线链路测量窗口(即DTxW窗口)中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口(即DTxW窗口)中的SI窗口序号,Periodicity表示无线链路测量窗口(即DTxW窗口)的周期;Offset表示SI窗口在周期内的基本子帧偏移。
第七步,首先通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移,然后通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移。
其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1;x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。
在第四种实现方式中,上述eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息,且上述步骤之间没有严格的 先后顺序。此外,该实现方式支持SI窗口非连续配置,即,前后两个SI窗口之间可能出现间隔。
在本公开的第二实施例中,以一个具体实例阐述使用上述第四种实现方式确定每个SI窗口的位置和配置参数。
在该实例中,将所有SI窗口非连续配置,其中,SI窗口的个数为2,具体为S1-1窗口和SI-2窗口,其具体的配置示意图如图6所示,其中,S1-1窗口配置在第一个DTxW窗口中,将SI-2窗口配置在第二个DTxW窗口中。DTxW窗口的周期为40ms,DTxW窗口的持续时间为4ms,每个SI窗口的长度为4ms,且S1-1窗口的周期为80ms,SI-2窗口的周期为160ms。且SI-1窗口在周期内的起始子帧偏移x=0,起始位置满足;SI-1窗口起始帧帧号%8=0;SI-1窗口起始子帧号=0;SI-2窗口在周期内的起始子帧偏移x=40,起始位置满足;SI-2窗口起始帧帧号%16=4;SI-2窗口起始子帧号=0。其中,SI-1窗口在周期内的起始子帧偏移和SI-2窗口在周期内的起始子帧偏移均是采用上述第七步中的方式计算得到的。
第三实施例
如图7所示,本公开的第三实施例提供了一种发送系统信息的方法,应用于基站,该方法包括:
步骤701,获取无线链路测量窗口的配置参数,根据无线链路测量窗口的配置参数,确定每个SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数。
在本公开的第三实施例中,上述无线链路测量窗口的配置参数包括:无线链路测量窗口的周期、无线链路测量窗口在周期内的子帧偏移以及无线链路测量窗口的持续时间。需要说明的是,在本公开的第三实施例中,上述无线链路测量窗口为DMTC窗口。相应地,DMTC窗口的配置参数包括:DMTC窗口的周期、DMTC窗口在周期内的子帧偏移以及DMTC窗口的持续时间。
此外,上述SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度。
步骤702,向终端发送发现参考信号。
其中,DRS中的增强的系统信息块中携带每个SI窗口的配置参数。
需要说明的是,DMTC窗口起始帧号mod T=FLOOR(dmtc-Offset/10);
DMTC窗口起始子帧号=dmtc-Offset mod 10;
T=dmtc-Periodicity/10;其中,dmtc-Offset表示DMTC窗口在周期内的子帧偏移,dmtc-Periodicity表示DMTC窗口的周期。
步骤703,通过各SI窗口向终端发送SI。
其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
在本公开的第三实施例中,上述步骤701包括四种具体地实现方式。
其中,在第一种实现方式中,DRS子帧中不发送SI的第一信息,且eSIB和SI的传输相互独立。且该第一种实现方式具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DMTC窗口)的周期的整数倍。
其中,各SI窗口的周期可能各不相同,但其均为DMTC窗口的周期的整数倍。
第二步,将无线链路测量窗口(即DMTC窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
第五步,通过公式w=FLOOR(Duration/N1)计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DMTC 窗口)的持续时间,N1表示配置于无线链路测量窗口(即DMTC窗口)中的SI窗口的数量。具体地,该N1可以为SI窗口的总数,也可以小于SI窗口的总数。即,可将所有SI窗口全配置于DMTC窗口中,也可将部分SI窗口配置于DMTC窗口中。
第六步,通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
其中,在第一种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,且eSIB和SI的传输相互独立。此外,上述各个步骤之间没有严格的先后顺序。
需要说明的是,当只有部分SI窗口配置在DMTC窗口中时,且假设前N1个SI窗口位于DMTC窗口内,后N-N1个SI窗口位于DMTC窗口外。此时若序号越靠后的SI窗口出现的周期越大,在空口中的传输频率越低,那么将后N-N1个SI窗口配置在DMTC窗口外能最大程度地节省UE的功耗。其中,N为SI窗口的总数。
此外,基站可以使用相同的广播无线网络临时标识(RNTI),即SI-RNTI对调度eSIB和SI的DCI进行加扰,UE使用SI-RNTI接收eSIB和SI。而由于eSIB与SI的传输相互独立,并且DRS子帧只能发送eSIB不发送SI,即将SI配置在DMTC窗口的非DRS子帧中。因此在SI窗口中如果有要传输DRS的子帧,则在该子帧不能传输SI。
在第二种实现方式中,DRS子帧中能够同时发送eSIB和SI的第二信息,且eSIB和SI的传输相互独立。且该第二种实现方式具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DMTC窗口)的周期的整数倍。
其中,各SI窗口的周期可能各不相同,但其均为DMTC窗口的周期的 整数倍。
第二步,将无线链路测量窗口(即DMTC窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
第五步,通过公式w=FLOOR(Duration/N1)计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DMTC窗口)的持续时间,N1表示配置于无线链路测量窗口(即DMTC窗口)中的SI窗口的数量。具体地,该N1可以为SI窗口的总数,也可以小于SI窗口的总数。即,可将所有SI窗口全配置于DMTC窗口中,也可将部分SI窗口配置于DMTC窗口中。
第六步,通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
其中,在第二种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息,且eSIB和SI的传输相互独立。即,表明允许在DRS子帧中同时发送eSIB和SI,即,SI可以在DMTC窗口的所 有子帧中发送,因此在DRS子帧中可能只发送eSIB,也可能同时发送eSIB和一个SI。而由于DRS可以在DMTC窗口中任何一个子帧发送,因此eSIB可能与SI位于DMTC窗口内的任何一个SI窗口同时发送。此外,上述各个步骤之间没有严格的先后顺序。
需要说明的是,若在DRS子帧中同时发送eSIB和一个SI,基站可以用不同的下行控制信息(DCI,Downlink Control Information)分别对eSIB和SI进行调度,例如用不同大小的DCI或不同格式的DCI,也可以同一个DCI对eSIB和SI进行调度。即,eSIB对应的下行控制信息与该SI对应的DCI可以相同,也可以不相同。其中,当基站用不同的DCI调度eSIB和SI时,可以使用不同的广播RNTI对DCI进行加扰,即UE使用不同的广播RNTI检测eSIB和SI;也可以使用相同的广播RNTI,即SI-RNTI对DCI进行加饶,即UE使用SI-RNTI检测eSIB和SI。
在第三种实现方式中,在DRS子帧中发送eSIB和第一个SI,且其具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DMTC窗口)的周期的整数倍。
其中,各SI窗口的周期可能各不相同,但其均为DMTC窗口的周期的整数倍。需要说明的是,第一步中的各SI窗口是指除了第一个SI对应的SI窗口以外的其他SI窗口。
第二步,将无线链路测量窗口(即DMTC窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
需要说明的是,上述第三步和第四步中计算的是除第一个SI对应的SI窗口以外的其他SI窗口的起始帧号和起始子帧号。
第五步,通过公式w=FLOOR(Duration/(N1-1)),计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DMTC窗口)的持续时间,N1表示配置在无线链路测量窗口(即DMTC窗口)内的SI窗口的数量。
第六步,通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式,即可算出该SI窗口在周期内的起始子帧偏移。
其中,在第三种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息。即,表明允许在DRS子帧中同时发送eSIB和第一个SI。其中,该第一个SI对应的SI窗口的周期是eSIB的整数倍,且第一个SI是固定配置的,即配置其与eSIB同时发送。此外,上述各个步骤之间没有严格的先后顺序。
需要说明的是,当只有部分SI窗口配置在DMTC窗口中时,且假设前N1个SI窗口位于DMTC窗口内,后N-N1个SI窗口位于DMTC窗口外。此时若序号越靠后的SI窗口出现的周期越大,在空口中的传输频率越低,那么将后N-N1个SI窗口配置在DMTC窗口外能最大程度地节省UE的功耗。其中,N为SI窗口的总数。
此外,在第三种实现方式中,与eSIB同时发送的SI也可以不是第一个SI,而是其他SI。但需要进一步说明的是,在DRS子帧中同时发送eSIB和 SI时,基站可以用不同的下行控制信息分别对eSIB和SI进行调度,例如用不同大小的DCI或不同格式的DCI,也可以同一个DCI对eSIB和SI进行调度。即,eSIB对应的下行控制信息与该SI对应的DCI可以相同,也可以不相同。其中,当基站用不同的DCI调度eSIB和SI时,可以使用不同的广播RNTI对DCI进行加扰,即UE使用不同的广播RNTI检测eSIB和SI;也可以使用相同的广播RNTI,即SI-RNTI对DCI进行加饶,即UE使用SI-RNTI检测eSIB和SI。
在第四种实现方式中,所有SI窗口配置在K个无线链路测量窗口内,且在该实现方式中,SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量。且该第四种实现方式具体包括如下步骤:
第一步,将每个SI窗口的周期设置为无线链路测量窗口(即DMTC窗口)的周期的整数倍,且每个SI窗口的周期大于或等于无线链路测量窗口的周期的K倍。
其中,各SI窗口的周期可能各不相同,但其均为DMTC窗口的周期的整数倍。
第二步,将无线链路测量窗口(即DMTC窗口)在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移。
第三步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期和在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始帧号。
第四步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口的在周期内的起始子帧偏移代入上述公式中即可算出该SI窗口起始子帧号。
第五步,通过公式w=FLOOR(Duration/N2),计算得到SI窗口的长度。
其中,w表示SI窗口的长度,Duration表示无线链路测量窗口(即DMTC窗口)的持续时间,N2表示在K个无线链路测量窗口(即DMTC窗口)中每个无线链路测量窗口(即DMTC窗口)中配置的SI窗口的数量。
在第四种实现方式中,有两种计算每个SI窗口在周期内的起始子帧偏移的方法,分别为下述的第六步和第七步,因此,第六步和第七步属于并列步骤,二选一即可。
第六步,通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在K个无线链路测量窗口(即DMTC窗口)每个无线链路测量窗口(即DMTC窗口)中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口(即DMTC窗口)中的SI窗口序号,Periodicity表示无线链路测量窗口(即DMTC窗口)的周期;Offset表示SI窗口在周期内的基本子帧偏移。
第七步,首先通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移,然后通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移。
其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1;x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。
在第四种实现方式中,上述eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息,且上述步骤之间没有严格的先后顺序。此外,该实现方式支持SI窗口非连续配置,即,前后两个SI窗口之间可能出现间隔。
在本公开的第三实施例中,以一个具体实例阐述使用上述第四种实现方式确定每个SI窗口的位置和配置参数。
在该实例中,将所有SI窗口非连续配置,其中,SI窗口的个数为2,具体为S1-1窗口和SI-2窗口,其具体的配置示意图如图8所示,其中,S1-1窗口配置在第一个DMTC窗口中,将SI-2窗口配置在第二个DMTC窗口中。DMTC窗口的周期为80ms,DMTC窗口的持续时间为4ms,DMTC窗口在周期内的子帧偏移为5ms,每个SI窗口的长度为4ms,且S1-1窗口的周期为160ms,SI-2窗口的周期为320ms。且SI-1窗口在周期内的起始子帧偏移x=5,起始位置满足;SI-1窗口起始帧帧号%16=0;SI-1窗口起始子帧号=5;SI-2窗口在周期内的起始子帧偏移x=85,起始位置满足;SI-2窗口起始帧帧号%32=8;SI-2窗口起始子帧号=5。其中,SI-1窗口在周期内的起始子帧偏移和SI-2窗口在周期内的起始子帧偏移均是采用上述第七步的方式计算得到的。
第四实施例
如图9所示,本公开的第四实施例提供了一种发送系统信息的装置,应用于基站,该装置包括:
第一处理模块901,用于确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
第一发送模块902,用于向终端发送发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个SI窗口的配置参数;
第二发送模块903,用于通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
可选地,第一处理模块901包括:
获取单元,用于获取无线链路测量窗口的配置参数,并根据无线链路测量窗口的配置参数,确定每个SI窗口的位置。
其中,无线链路测量窗口的配置参数包括:无线链路测量窗口的周期、无线链路测量窗口在周期内的子帧偏移以及无线链路测量窗口的持续时间。
可选地,SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度;第一处理模块901包括:
第一设置单元,用于将每个SI窗口的周期设置为无线链路测量窗口的周期的整数倍;
第二设置单元,用于将无线链路测量窗口在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移;
第一计算单元,用于通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号;其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移;
第二计算单元,用于通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
可选地,eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,或者,用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息;第一处理模块901还包括:
第三计算单元,用于通过公式w=FLOOR(Duration/N1)计算得到SI窗口的长度;其中,w表示SI窗口的长度,Duration表示无线链路测量窗口的持续时间,N1表示配置于无线链路测量窗口中的SI窗口的数量;
第四计算单元,用于通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1。
可选地,eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息;第一处理模块901还包括:
第五计算单元,用于通过公式w=FLOOR(Duration/(N1-1)),计算得到SI窗口的长度,其中,w表示SI窗口的长度,Duration表示无线链路测量窗口的持续时间,N1表示配置在无线链路测量窗口内的SI窗口的数量;
第六计算单元,用于通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2。
可选地,若在DRS子帧中同时发送eSIB和SI,该eSIB对应的下行控制信息DCI与该SI对应的DCI相同或者不相同,且若eSIB对应的DCI与该SI对应的DCI不同,eSIB对应的DCI与SI对应的DCI使用相同的或者不相 同的无线网络临时标识RNTI加扰。
可选地,eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息;SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,每个SI窗口的周期大于或等于无线链路测量窗口的周期的K倍;第一处理模块901还包括:
第七计算单元,用于通过公式w=FLOOR(Duration/N2),计算得到SI窗口的长度,其中,w表示SI窗口的长度,Duration表示无线链路测量窗口的持续时间,N2表示在K个无线链路测量窗口中每个无线链路测量窗口中配置的SI窗口的数量;
第八计算单元,用于通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口中的SI窗口序号,Periodicity表示无线链路测量窗口的周期;Offset表示SI窗口在周期内的基本子帧偏移;
或者,
第九计算单元,用于通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移;其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1;
第十计算单元,用于通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移;其中,x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。
可选地,无线链路测量窗口为DRS传输DTxW窗口或者发现信号测量时间配置DMTC窗口。
在本公开的第四实施例中,通过将各SI窗口中的部分SI窗口配置于 DMTC窗口内或者DTxW窗口内,使得终端可以在进行无线链路测量的同时尝试接收系统信息,解决了终端需要在无线链路测量窗口外开启接收机,增大终端的功耗的问题,达到了节省UE的功耗、延长UE电池的使用时间的效果。
需要说明的是,本公开第四实施例提供的发送系统信息的装置是应用上述应用于基站的发送系统信息的方法的装置,即上述应用于基站的发送系统信息的方法的所有实施例均适用于该装置,且均能达到相同或相似的有益效果。
第五实施例
如图10所示,本公开的第五实施例提供了一种基站,该基站包括:
处理器1001,用于确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
发送机1002,与处理器1001连接,用于实现如下功能:向终端发送发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个SI窗口的配置参数;
发送机1002,还用于通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
在本公开的第五实施例中,基站通过将各SI窗口中的部分SI窗口配置于DMTC窗口内或者DTxW窗口内,使得终端可以在进行无线链路测量的同时尝试接收系统信息,解决了终端需要在无线链路测量窗口外开启接收机,增大终端的功耗的问题,达到了节省UE的功耗、延长UE电池的使用时间的效果。
需要说明的是,基站可分别在无线测量窗口内和无线窗口外进行SI配置,在无线测量窗口内和在无线测量窗口外配置的SI相互独立,并且有不同的SI窗口计算准则。其中,基站可使用实施例一至实施例三中的方法将SI窗口配置在无线测量窗口内。
此外,基站在eSIB中包含两套SI调度信息,分别对应在无线测量窗口内和在无线窗口外配置的SI。相同的SIB可以分别在无线测量窗口内的SI 和无线测量窗口外的SI发送,在无线测量窗口内和在无线测量窗口外的SI包含的SIB可以相同也可以不同。
举例来说,基站配置在无线测量窗口内发送的SI个数为2个,在无线测量窗口外发送的SI个数为3个,除了eSIB,一共要发送9个SIB:SIB3/SIB4/SIB5/SIB6/SIB7/SIB8/SIB9/SIB10/SIB11。基站在无线测量窗口内配置的SI-1包含的SIB包括SIB3/SIB4/SIB5,SI-2包括SIB6/SIB7/SIB8/SIB9/SIB10/SIB11;在无线测量窗口外配置的SI-1包括SIB3/SIB4/SIB5,SI-2包括SIB6/SIB7/SIB8,SI-3包括SIB9/SIB10/SIB11。对于相同的SIB,UE可以选择在无线测量窗口内接收,也可以在无线测量窗口外接收,例如,对节电性能要求较高的UE可选择在无线测量窗口内接收SIB,对广播接收时延要求较高的UE可选择在无线测量窗口外接收SIB。
第六实施例
如图11所示,本公开的第六实施例提供了一种发送系统信息消息的方法,应用于终端,该方法包括:
步骤1101,接收基站发送的发现参考信号。
其中,DRS中的增强的系统信息块中携带每个系统信息对应的SI窗口的配置参数。而SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度。
步骤1102,根据SI窗口的配置参数,确定出每个SI窗口的位置。
步骤1103,从每个SI窗口接收基站发送的SI。
其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。其中,无线链路测量窗口包括:DMTC窗口和DTxW窗口。因此,服务小区的SI窗口可配置在DMTC窗口内或者DTxW窗口内。
在本公开的第六实施例中,由于基站将各SI窗口中的部分SI窗口配置于DMTC窗口内或者DTxW窗口内,使得终端可以在进行无线链路测量的同时尝试接收系统信息,从而达到节省UE的功耗、延长UE电池的使用时间的效果。
其中,在本公开的第六实施例中,上述步骤1102的包括以下四种实现方 式。
其中,在第一种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,且第一种实现方式具体包括如下步骤:
第一步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期以及在周期内的起始子帧偏移代入上述公式即可算出该SI窗口起始帧号。
第二步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口在周期内的起始子帧偏移代入上述公式即可算出该SI窗口起始子帧号。
第三步,通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1,w表示SI窗口的长度。具体地,当需要计算某个SI在周期内的起始子帧偏移,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
需要说明的是,在上述第一种实现方式中,上述步骤之间没有严格的先后顺序。且UE可以使用相同的广播无线网络临时标识(RNTI),即SI-RNTI检测eSIB和SI。
在第二种实现方式中,确定出每个SI窗口的位置的方式与上述第一种实现当时一样,区别就在于eSIB中还包括一用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息。
在第三种实现方式中,eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息,且第三种实现方式具体包括 如下步骤:
第一步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期以及在周期内的起始子帧偏移代入上述公式即可算出该SI窗口起始帧号。
第二步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口在周期内的起始子帧偏移代入上述公式即可算出该SI窗口起始子帧号。
需要说明的是,在第三种实现方式中,针对于上述第一步和第二步只用于计算各SI窗口中除第一个SI对应的SI窗口以外的其他SI窗口起始帧号和起始子帧号。
第三步,通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2,w表示SI窗口的长度。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移,将该SI窗口在周期内的基本子帧偏移、在SI消息列表中的序号以及长度代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
需要说明的是,在第二种和第三种实现方式中,若基站用不同的DCI调度eSIB和SI,UE可以使用不同的广播RNTI检测eSIB和SI,也可以使用相同的广播RNTI检测eSIB和SI;而若基站用相同的DCI调度eSIB和SI,UE使用SI-RNTI检测eSIB和SI。
在第四种实现方式中,eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息,且SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量。相应地,第四种实现方式具体包括如下步骤:
第一步,通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号。
其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移。具体地,当需要计算某个SI窗口起始帧号时,将该SI窗口的周期以及在周期内的起始子帧偏移代入上述公式即可算出该SI窗口起始帧号。
第二步,通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
具体地,当需要计算某个SI窗口起始子帧号时,将该SI窗口在周期内的起始子帧偏移代入上述公式即可算出该SI窗口起始子帧号。
在第四种实现方式中,包括两种计算每个SI窗口在周期内的起始子帧偏移的方法,分别为下述的第三步和第四步,因此,下述第三步和第四步属于并列的方式,二选一即可。
第三步,通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移。
其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口中的SI窗口序号,Periodicity表示无线链路测量窗口的周期,Offset表示SI窗口在周期内的基本子帧偏移,w表示SI窗口的长度。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口对应的各参数代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
第四步,首先通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移,然后通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移。
其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1,w表示SI窗口的长度;x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口 中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。具体地,当需要计算某个SI窗口在周期内的起始子帧偏移时,将该SI窗口对应的各参数代入上述公式即可算出该SI窗口在周期内的起始子帧偏移。
需要说明的是,在上述四种实现方式中,无线链路测量窗口可以为DMTC窗口或者DTxW窗口。
其中,若无线链路测量窗口为DTxW窗口,则可通过以下方式计算DTxW窗口的位置:
DTxW窗口起始帧号mod T=0;
DTxW窗口起始子帧号=0;
T=dtxw-Periodicity/10,其中,dtxw-Periodicity表示DTxW窗口的周期。
而若无线链路测量窗口为DMTC窗口,则可通过以下方式计算DMTC窗口的位置:
DMTC窗口起始帧号mod T=FLOOR(dmtc-Offset/10);
DMTC窗口起始子帧号=dmtc-Offset mod 10;
T=dmtc-Periodicity/10;其中,dmtc-Offset表示DMTC窗口在周期内的子帧偏移,dmtc-Periodicity表示DMTC窗口的周期。
第七实施例
如图12所示,本公开的第七实施例提供了一种发送系统信息消息的装置,应用于终端,该装置包括:
第一接收模块1201,用于接收基站发送的发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
第二处理模块1202,用于根据SI窗口的配置参数,确定出每个SI窗口的位置;
第二接收模块1203,用于从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
可选地,SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度;第二处理模块1202包括:
第十一计算单元,用于通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号;其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移;
第十二计算单元,用于通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
可选地,若eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,或者,用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息;第二处理模块1202还包括:
第十三计算单元,用于通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1,w表示SI窗口的长度。
可选地,若eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息;第二处理模块1202还包括:
第十四计算单元,用于通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2,w表示SI窗口的长度。
可选地,若eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息,SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量;第二处理模块1202还包括:
第十五计算单元,用于通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在 K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口中的SI窗口序号,Periodicity表示无线链路测量窗口的周期,Offset表示SI窗口在周期内的基本子帧偏移,w表示SI窗口的长度;
或者,
第十六计算单元,用于通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移;其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1,w表示SI窗口的长度;
第十七计算单元,用于通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移;其中,x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。
可选地,无线链路测量窗口为DRS传输DTxW窗口或者发现信号测量时间配置DMTC窗口。
在本公开的第七实施例中,由于基站将各SI窗口中的部分SI窗口配置于DMTC窗口内或者DTxW窗口内,使得终端可以在进行无线链路测量的同时尝试接收系统信息,从而达到节省UE的功耗、延长UE电池的使用时间的效果。
需要说明的是,本公开第七实施例提供的发送系统信息的装置是应用上述应用于终端的发送系统信息的方法的装置,即上述应用于终端的发送系统信息的方法的所有实施例均适用于该装置,且均能达到相同或相似的有益效果。
第八实施例
如图13所示,本公开的第八实施例提供了一种终端,包括:
接收机1301,用于接收基站发送的发现参考信号DRS,其中,DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
处理器1302,与接收机1301连接,用于实现如下功能:根据SI窗口的 配置参数,确定出每个SI窗口的位置;
接收机1301,还用于从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于终端所在服务小区的无线链路测量窗口中。
在本公开的第八实施例中,由于基站将各SI窗口中的部分SI窗口配置于DMTC窗口内或者DTxW窗口内,使得终端可以在进行无线链路测量的同时尝试接收系统信息,从而达到节省UE的功耗、延长UE电池的使用时间的效果。
需要说明的是,本公开实施例中的UE,可以是移动电话机(或手机),或者其他能够发送或接收无线信号的设备,包括用户设备(终端)、个人数字助理(PDA)、无线调制调解器、无线通信装置、手持装置、膝上型计算机、无绳电话、无线本地回路(WLL)站、能够将移动信号转换为wifi信号的客户终端设备(CPE)或便携式宽带无线装置(Mifi)、智能家电、或其它不通过人的操作就能自发与移动通信网络通信的设备等。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (25)

  1. 一种发送系统信息的方法,应用于基站,所述方法包括:
    确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
    向终端发送发现参考信号DRS,其中,所述DRS中的增强的系统信息块eSIB中携带所述每个SI窗口的配置参数;
    通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且所述各SI窗口中的部分SI窗口配置于所述终端所在服务小区的无线链路测量窗口中。
  2. 如权利要求1所述的方法,其中,所述确定每个系统信息SI对应的SI窗口的位置的步骤,包括:
    获取所述无线链路测量窗口的配置参数,并根据所述无线链路测量窗口的配置参数,确定每个SI窗口的位置;其中,所述无线链路测量窗口的配置参数包括:无线链路测量窗口的周期和无线链路测量窗口的持续时间。
  3. 如权利要求1所述的方法,其中,所述无线链路测量窗口的配置参数还包括:无线链路测量窗口在周期内的子帧偏移。
  4. 如权利要求3所述的方法,其中,所述SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度;
    所述确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数的步骤,包括:
    将每个SI窗口的周期设置为所述无线链路测量窗口的周期的整数倍;
    将无线链路测量窗口在周期内的子帧偏移作为SI窗口在周期内的基本子帧偏移;
    通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口起始帧号;其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移;
    通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
  5. 如权利要求4所述的方法,其中,所述eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,或者,用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息。
  6. 如权利要求5所述的方法,其中,
    所述确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数的步骤,还包括:
    通过公式w=FLOOR(Duration/N1)计算得到SI窗口的长度;其中,w表示SI窗口的长度,Duration表示无线链路测量窗口的持续时间,N1表示配置于无线链路测量窗口中的SI窗口的数量;
    通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1。
  7. 如权利要求4所述的方法,其中,所述eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息。
  8. 如权利要求7所述的方法,其中,
    所述确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数的步骤,还包括:
    通过公式w=FLOOR(Duration/(N1-1)),计算得到SI窗口的长度,其中,w表示SI窗口的长度,Duration表示无线链路测量窗口的持续时间,N1表示配置在无线链路测量窗口内的SI窗口的数量;
    通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2。
  9. 如权利要求5或7所述的方法,其中,若在DRS子帧中同时发送eSIB和SI,该eSIB对应的下行控制信息DCI与该SI对应的DCI相同或者不相同,且若eSIB对应的DCI与该SI对应的DCI不同,所述eSIB对应的DCI与所述SI对应的DCI使用相同的或者不相同的无线网络临时标识RNTI加扰。
  10. 如权利要求4所述的方法,其中,eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息;所述SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,每个SI窗口的周期大于或等于所述无线链路测量窗口的周期的K倍。
  11. 如权利要求10所述的方法,其中,
    所述确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数的步骤,还包括:
    通过公式w=FLOOR(Duration/N2),计算得到所述SI窗口的长度,其中,w表示SI窗口的长度,Duration表示无线链路测量窗口的持续时间,N2表示在K个无线链路测量窗口中每个无线链路测量窗口中配置的SI窗口的数量;
    通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口中的SI窗口序号,Periodicity表示无线链路测量窗口的周期;Offset表示SI窗口在周期内的基本子帧偏移;
    或者,
    通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移;其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1;
    通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移;其中,x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。
  12. 如权利要求1所述的方法,其中,所述无线链路测量窗口为DRS传输DTxW窗口或者发现信号测量时间配置DMTC窗口。
  13. 一种发送系统信息的装置,应用于基站,所述装置包括:
    第一处理模块,用于确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
    第一发送模块,用于向终端发送发现参考信号DRS,其中,所述DRS中的增强的系统信息块eSIB中携带所述每个SI窗口的配置参数;
    第二发送模块,用于通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且所述各SI窗口中的部分SI窗口配置于所述终端所在服务小区的无线链路测量窗口中。
  14. 一种基站,包括:
    处理器,用于确定每个系统信息SI对应的SI窗口的位置,并根据每个SI的窗口位置确定每个SI窗口的配置参数;
    发送机,与所述处理器连接,用于实现如下功能:向终端发送发现参考信号DRS,其中,所述DRS中的增强的系统信息块eSIB中携带所述每个SI窗口的配置参数;
    所述发送机,还用于通过各SI窗口向终端发送SI,其中,每个SI窗口对应一个SI,且所述各SI窗口中的部分SI窗口配置于所述终端所在服务小区的无线链路测量窗口中。
  15. 一种发送系统信息消息的方法,应用于终端,所述方法包括:
    接收基站发送的发现参考信号DRS,其中,所述DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
    根据SI窗口的配置参数,确定出每个所述SI窗口的位置;
    从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于所述终端所在服务小区的无线链路测量窗口中。
  16. 如权利要求15所述的方法,其中,所述SI窗口的配置参数包括SI窗口的周期、SI窗口在周期内的基本子帧偏移以及SI窗口的长度;
    所述根据SI窗口的配置参数,确定出每个所述SI窗口的位置的步骤,包括:
    通过公式SI窗口起始帧号%T=FLOOR(x/10),计算得到每个SI窗口 起始帧号;其中,T=SI-Periodicity/10,SI-Periodicity表示SI窗口的周期,x表示SI窗口在周期内的起始子帧偏移;
    通过公式SI窗口起始子帧号=x%10,计算得到每个SI窗口起始子帧号。
  17. 如权利要求16所述的方法,其中,若所述eSIB中还包括一用于指示终端在DRS子帧中不发送SI的第一信息,或者,用于指示终端在DRS子帧中能够同时发送eSIB和SI的第二信息。
  18. 如权利要求17所述的方法,其中,
    所述根据SI窗口的配置参数,确定出每个所述SI窗口的位置的步骤,还包括:
    通过公式x=Offset+(n-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1,w表示SI窗口的长度。
  19. 如权利要求16所述的方法,其中,若所述eSIB中还包括一用于指示终端在DRS子帧中同时发送eSIB和第一个SI的第三信息,以及用于指示终端在DRS子帧中不发送除与eSIB同时发送的SI以外的SI的第四信息。
  20. 如权利要求19所述的方法,其中,
    所述根据SI窗口的配置参数,确定出每个所述SI窗口的位置的步骤,还包括:
    通过公式x=Offset+(n-2)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,Offset表示SI窗口在周期内的基本子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于2,w表示SI窗口的长度。
  21. 如权利要求16所述的方法,其中,若eSIB中还包括一用于指示终端将所有SI窗口配置在K个无线链路测量窗口内的第五信息,
    所述SI窗口的配置参数还包括无线链路测量窗口的周期和在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量。
  22. 如权利要求21所述的方法,其中,
    所述根据SI窗口的配置参数,确定出每个所述SI窗口的位置的步骤,还包括:
    通过公式x=Offset+(k-1)*Periodicity+(m-1)*w,计算得到每个SI窗口在周期内的起始子帧偏移;其中,x表示SI窗口在周期内的起始子帧偏移,k=FLOOR((n-1)/N2)+1,m=n%N,n表示SI窗口在SI消息列表中的序号,n大于等于1,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,m表示SI窗口在第k个无线链路测量窗口中的SI窗口序号,Periodicity表示无线链路测量窗口的周期,Offset表示SI窗口在周期内的基本子帧偏移,w表示SI窗口的长度;
    或者,
    通过公式x’=(n-1)*w,计算得到每个SI窗口在SI周期内的虚拟起始子帧偏移;其中,x’表示SI窗口在SI周期内的虚拟起始子帧偏移,n表示SI窗口在SI消息列表中的序号,且n大于等于1,w表示SI窗口的长度;
    通过公式x=Offset+x’+FLOOR((n-1)/N2)*(Periodicity-N2*w),计算得到每个SI窗口的起始子帧偏移;其中,x表示SI窗口的起始子帧偏移,N2表示在K个无线链路测量窗口每个无线链路测量窗口中配置的SI窗口的数量,Offset表示SI窗口在周期内的基本子帧偏移,Periodicity表示无线链路测量窗口的周期。
  23. 如权利要求15至22任一项所述的方法,其中,所述无线链路测量窗口为DRS传输DTxW窗口或者发现信号测量时间配置DMTC窗口。
  24. 一种发送系统信息消息的装置,应用于终端,所述装置包括:
    第一接收模块,用于接收基站发送的发现参考信号DRS,其中,所述DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
    第二处理模块,用于根据SI窗口的配置参数,确定出每个所述SI窗口的位置;
    第二接收模块,用于从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于所述终端所在服务小区的无线链路测量窗口中。
  25. 一种终端,包括:
    接收机,用于接收基站发送的发现参考信号DRS,其中,所述DRS中的增强的系统信息块eSIB中携带每个系统信息SI对应的SI窗口的配置参数;
    处理器,与所述接收机连接,用于实现如下功能:根据SI窗口的配置参数,确定出每个所述SI窗口的位置;
    所述接收机,还用于从每个SI窗口接收基站发送的SI,其中,每个SI窗口对应一个SI,且各SI窗口中的部分SI窗口配置于所述终端所在服务小区的无线链路测量窗口中。
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