WO2021248384A1 - Procédé et appareil de mesure - Google Patents

Procédé et appareil de mesure Download PDF

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Publication number
WO2021248384A1
WO2021248384A1 PCT/CN2020/095457 CN2020095457W WO2021248384A1 WO 2021248384 A1 WO2021248384 A1 WO 2021248384A1 CN 2020095457 W CN2020095457 W CN 2020095457W WO 2021248384 A1 WO2021248384 A1 WO 2021248384A1
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Prior art keywords
measurement
configuration information
period
csi
information
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PCT/CN2020/095457
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English (en)
Chinese (zh)
Inventor
胡荣贻
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202080100050.0A priority Critical patent/CN115428554A/zh
Priority to PCT/CN2020/095457 priority patent/WO2021248384A1/fr
Publication of WO2021248384A1 publication Critical patent/WO2021248384A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to communication technology, in particular to a measurement method and device.
  • the terminal device can perform the measurement process based on the reference signal sent by the network device, where the reference signal can be a synchronization signal block (SSB or SS/PBCH block) or a channel state information reference signal (channel state information-reference signal) , CSI-RS).
  • the reference signal can be a synchronization signal block (SSB or SS/PBCH block) or a channel state information reference signal (channel state information-reference signal) , CSI-RS).
  • SSB measurement timing configuration synchronization signal block measurement timing configuration information
  • SMTC synchronization signal block measurement timing configuration information
  • SMTC includes one or more of the period of SMTC, the duration of SMTC (or called window length), and the time offset of SMTC. Therefore, terminal equipment can measure SSB at the time domain position corresponding to SMTC, and, CSI- RS is a resource with very flexible configuration. At present, the measurement of CSI-RS is performed according to the period of CSI-RS.
  • the embodiments of the present application provide a measurement method and device to avoid the problem of reducing the efficiency of mobility measurement caused by not restricting the measurement time domain of the CSI-RS.
  • an embodiment of the present application provides a measurement method applied to a terminal device, including:
  • first time domain information Acquiring first time domain information, where the first time domain information is used to indicate a time domain position of a measurement channel state information reference signal CSI-RS;
  • an embodiment of the present application provides a measurement method applied to a network device, including:
  • first time domain information Acquiring first time domain information, where the first time domain information is used to indicate a time domain position of a measurement channel state information reference signal CSI-RS;
  • an embodiment of the present application provides a measurement device, which is applied to a terminal device, and includes:
  • An acquiring module configured to acquire first time domain information, where the first time domain information is used to indicate a time domain position of a measurement channel state information reference signal CSI-RS;
  • the processing module is configured to perform mobility measurement according to the first time domain information.
  • an embodiment of the present application provides a measurement device, which is applied to a network device, and includes:
  • An acquiring module configured to acquire first time domain information, where the first time domain information is used to indicate a time domain position of a measurement channel state information reference signal CSI-RS;
  • the sending module is configured to send the CSI-RS according to the first time domain information.
  • an embodiment of the present application provides a terminal device, including: a transceiver, a processor, and a memory;
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the measurement method described in the first aspect above.
  • an embodiment of the present application provides a network device, including: a transceiver, a processor, and a memory;
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the measurement method described in the second aspect above.
  • an embodiment of the present application provides a computer-readable storage medium that stores a computer-executable instruction in the computer-readable storage medium, and when the computer-executable instruction is executed by a processor, it is used to implement the above-mentioned first aspect.
  • an embodiment of the present application provides a computer-readable storage medium that stores a computer-executable instruction, and when the computer-executable instruction is executed by a processor, it is used to implement the above-mentioned second aspect. The measurement method described.
  • the embodiments of the present application provide a measurement method and device, the method including: acquiring first time domain information, where the first time domain information is used to indicate the time domain position of the measurement channel state information reference signal CSI-RS. Perform mobility measurement according to the first time domain information.
  • the mobility measurement of the CSI-RS can be performed at the time domain position indicated by the first time domain information, so as to realize the CSI-RS measurement.
  • the measurement time domain is constrained, thereby reducing the implementation complexity of mobility measurement and improving the efficiency of mobility measurement.
  • FIG. 1 is a schematic diagram of a communication scenario provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of mobility measurement provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of the configuration of two SMTCs of a measurement interval and a measurement object provided by an embodiment of the application;
  • FIG. 4 is a schematic diagram of implementing SMTC within the measurement interval provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of the implementation of SMTC all outside the measurement interval provided by an embodiment of the application.
  • FIG. 6 is a flowchart of a measurement method provided by one of the embodiments of this application.
  • FIG. 7 is a schematic diagram of a possible configuration of measurement time configuration information provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of a measurement window determined based on CSI-RS according to an embodiment of the application.
  • FIG. 9 is a flowchart of a measurement method provided by another embodiment of this application.
  • FIG. 10 is a structural schematic diagram 1 of a measuring device provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram 2 of the structure of the measuring device provided by an embodiment of the application.
  • FIG. 12 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • FIG. 13 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • 3GPP 3rd Generation Partnership, the third generation partnership project.
  • Terminal equipment It can be a device that includes wireless transceiver functions and can cooperate with network equipment to provide users with communication services.
  • terminal equipment may refer to User Equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, User agent or user device.
  • UE User Equipment
  • the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), and a wireless Communication function handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or networks after 5G, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Network equipment can be equipment used to communicate with terminal equipment, for example, it can be in the Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) communication system
  • the base station can also be the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) system, or the evolutional base station (Evolutional Node) in the LTE system B, eNB or eNodeB), or the network equipment may be a relay station, access point, in-vehicle equipment, wearable equipment, and network side equipment in the future 5G network or networks after 5G or the future evolution of the public land mobile network (Public Land Mobile Network).
  • Mobile Network, PLMN Mobile Network, etc. in the network.
  • the network equipment involved in the embodiments of the present application may also be referred to as a radio access network (Radio Access Network, RAN) equipment.
  • the RAN device is connected with the terminal device, and is used to receive data from the terminal device and send it to the core network device.
  • RAN equipment corresponds to different equipment in different communication systems.
  • 2G second-generation mobile communication
  • 3G third-generation mobile communication
  • RNC Radio Network Controller
  • 4G 4th-Generation
  • 4G it corresponds to the Evolutional Node B (eNB) in the 5G system.
  • 5G systems such as access network equipment in NR (for example, gNB, centralized unit CU, distributed unit DU).
  • Mobility measurement is an important part of the wireless communication network. Terminal equipment can obtain the signal quality of its own cell and neighboring cells through mobility measurement, and report the relevant measurement results to the network equipment. The network equipment The reported measurement results determine whether the terminal device performs cell handover. Among them, the mobility measurement can better support the mobility of the terminal device, perform handover and cell reselection in time, and ensure the reliability and continuity of user services.
  • Frequency point refers to the specific absolute frequency value, generally the center frequency of the modulated signal.
  • the frequency point is the number given to the fixed frequency.
  • Intra-frequency measurement The frequency of the target cell to be measured is the same as the frequency of the current serving cell.
  • Inter-frequency measurement The frequency of the target cell to be measured is different from the frequency of the current serving cell.
  • Inter-RAT measurement The network standard of the target cell to be measured is different from the network standard of the current serving cell.
  • Fig. 1 is a schematic diagram of a communication scenario provided by an embodiment of the application. Please refer to Figure 1, including a network device 101 and a terminal device 102.
  • the network device 101 and the terminal device 102 can communicate wirelessly.
  • the terminal device 102 can communicate with at least one core via a radio access network (RAN). Network to communicate.
  • RAN radio access network
  • the communication system can be Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (hereinafter referred to as GSM) system WCDMA) system, Long Term Evolution (LTE) system, or 5th-Generation (5G) system.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • 5G 5th-Generation
  • the base station can be a base station (Base Transceiver Station, referred to as BTS) in a GSM system or a CDMA system, can also be a base station (NodeB, referred to as NB) in a WCDMA system, or an evolved base station in an LTE system ( The evolved NodeB, eNB for short), access point (access point, AP), or relay station, may also be a base station in a 5G system, etc., which are not limited here.
  • BTS Base Transceiver Station
  • NB base station
  • eNB evolved base station in an LTE system
  • access point access point, AP
  • relay station may also be a base station in a 5G system, etc., which are not limited here.
  • the 5G mobile communication system described in this application includes a non-standalone (NSA) 5G mobile communication system and/or a standalone (SA) 5G mobile communication system.
  • the technical solution provided in this application can also be applied to future communication systems, such as the sixth-generation mobile communication system.
  • the communication system may also be a PLMN network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an IoT network or other networks.
  • FIG. 2 is a schematic diagram of the mobility measurement provided by an embodiment of this application:
  • the current system includes a terminal device 110 and a plurality of network devices 120-124. It is assumed that the terminal device is currently connected to the network device 120 (for example, in a radio resource control (RRC) connection mode), And it operates in the serving cell 130 provided by the network device 120, and the terminal device 110 may also be in the coverage area of a group of adjacent cells 131-134 provided by the network devices 121-124, respectively.
  • RRC radio resource control
  • the network devices 120-124 can implement the same or different wireless access technologies, such as NR air interface, evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, E-UTRA) air interface, universal terrestrial Radio Access Network (the Universal Terrestrial Radio Access Network, UTRAN) air interface, Global System for Mobile Communication (GSM) Enhanced Data Rate (Enhanced Data Rate for GSM Evolution, EDGE) Radio Access Network (GSM EDGE Radio Access Network, GERAN) air interface and so on.
  • GSM Global System for Mobile Communication
  • GSM Enhanced Data Rate
  • EDGE Enhanced Data Rate for GSM Evolution
  • GERAN Global System for Mobile Communication
  • each of the network devices 120-124 can implement the next generation NodeB (gNB) and evolved Node B ( Evolved Node B, eNodeB), NodeB (NodeB) and other functions.
  • gNB next generation NodeB
  • eNodeB evolved Node B
  • NodeB NodeB
  • the terminal device 110 may be a device that communicates with the network devices 120-124 according to corresponding communication protocols, and these communication protocols correspond to the wireless access technologies used by the corresponding network devices.
  • the terminal device can receive a set of measurement configurations from the serving cell 130, and the terminal device 110 performs a measurement process to measure the serving cell 130 and neighboring cells 121-124, and send it to the network device 120 measurement report.
  • the network device 120 may send the measurement configuration to the terminal device 110 via RRC signaling.
  • the measurement may be performed based on a reference signal (Reference Signal, RS) sent by the network device 121-124, or the measurement may also be performed based on a reference signal sent by the network device 120.
  • RS Reference Signal
  • the reference signal may be a synchronization signal block SSB or CSI-RS, etc., where the synchronization signal block is also called synchronization signal/physical broadcast channel (synchronization signal/physical broadcast channel, PBCH), and may include PBCH One or more of primary synchronization signal (primary synchronization signal, PSS) and secondary synchronization signal (secondary synchronization signal, SSS).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • the measurement configuration 141 may specify a group of measurement objects (MO).
  • the measurement objects may be measured in units of frequency points, and each configured measurement object is a separate measurement object.
  • the frequency point has a separate measurement object identifier.
  • the measurement object can be a single E-UTRA carrier frequency.
  • the type of MO can be, for example, CSI-RS measurement, then CSI-RS measurement can be configured in MO, for example, a series of measurement-related parameters can be configured in MO, or the measurement object can also be the type of SSB measurement, then SSB The measurement can be configured in the MO, for example, a series of measurement-related parameters can be configured in the MO.
  • the measurement configuration 141 can also specify a group of qualities to be measured corresponding to the MO.
  • measurement quality includes reference signal received power (RSRP), reference signal received quality (RSRQ), signal-to-noise and interference ratio (signal-to-noise and interference ratio, SINR), and reference signal received quality (RSRQ).
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • SINR signal-to-noise and interference ratio
  • RSRQ reference signal received quality
  • Time difference Reference signal time difference
  • the following describes the same-frequency measurement, inter-frequency measurement, and different-standard measurement with reference to Figure 2 taking the reference signal as an example.
  • the 3GPP NR standard in the NR system, if the indicated The center frequency of the SSB of the measured serving cell is the same as the center frequency of the SSB of the target cell, and the subcarrier spacing of the two SSBs is also the same.
  • This measurement can be defined as an SSB-based co-frequency measurement, for example, the adjacent cell 131 The measurement can be determined as the same frequency measurement.
  • the measurement can be defined as an inter-frequency measurement based on the SSB.
  • the measurement of the neighboring cell 133 can be determined as Inter-frequency measurement.
  • the measurement performed on the neighboring cell 134 may be determined to be a different-standard measurement.
  • the terminal device can be configured to measure GAP, where measuring GAP is the time period for the terminal device to leave the current frequency point to measure other frequency points.
  • the terminal equipment can tune its radio frequency (RF) circuit from the frequency of the serving cell to the frequency of the target cell to perform cell search or measurement, and stop normal on the serving cell of the corresponding frequency domain. Uplink and downlink data transmission until the end of GAP measurement.
  • RF radio frequency
  • RAN4 defines the measurement intervals of per UE and per FR, namely gapFR1, gapFR2, and gapUE.
  • the terminal device also introduces an independent measurement interval configuration (independentGapConfig), which is used to indicate whether the terminal device can configure a measurement interval of per FR1/2.
  • gapFR1 This measurement interval configuration is only applicable to FR1. gapFR1 and gapUE do not support simultaneous configuration. In addition, in EN-DC mode, gapFR1 does not support NR RRC configuration, and only LTE RRC can configure FR1 gap.
  • gapFR2 This measurement interval configuration is only applicable to FR2. gapFR2 and gapUE do not support simultaneous configuration.
  • gapUE This measurement interval configuration is applicable to all frequency bands, including FR1 and FR2.
  • EN-DC mode only LTE RRC can configure gapUE, and NR RRC configuration is not supported. If gapUE is configured, gapFR1 or gapFR2 cannot be reconfigured.
  • the terminal device For the per-UE gap, the terminal device is not allowed to send any data, nor does it expect to adjust the receivers of the primary carrier and the secondary carrier. If the terminal device supports the independent gap capability, that is, the measurement of FR1 and FR2 can be independent and unaffected, then the terminal device can be configured with a per-FR measurement gap.
  • the parameter configuration of the measurement interval includes measurement gap length (MGL), measurement gap repetition period (MGRP), measurement gap offset (measurement gap offset), and measurement interval timing Advance (measurement gap timing advance, MGTA).
  • MGL can be 1.5ms, 3ms, 3.5ms, 4ms, 5.5ms, 6ms.
  • MGRP can be 20ms, 40ms, 80ms, 160ms.
  • MGTA can be 0ms, 0.25ms (FR2), 0.5ms (FR1).
  • the offset of MG can be any value in the set ⁇ 0,1,...,MGRP-1 ⁇ , and the unit of the value in the set ⁇ is milliseconds (ms).
  • the terminal device can determine the starting position of the measurement interval according to the following formula:
  • subframe gapOffset mod 10;
  • SFN represents the system frame number
  • FLOOR represents rounding down
  • mod represents the remainder function
  • subframe represents the number of the subframe.
  • the current protocol supports 24 measurement interval patterns (gap patterns), see Table 1.
  • the MO in the measurement configuration includes the same frequency MO, different frequency MO, or different network MO.
  • the measurement configuration can specify a set of parameters to be measured corresponding to the MO.
  • the parameters to be measured include reference signal received power (RSRP), reference signal received quality (RSRQ), signal-to-noise and interference ratio (signal-to-noise and interference ratio, SINR), Reference signal time difference (RSTD), etc.
  • the network equipment can configure the terminal equipment with SMTC, and SMTC is used to instruct the terminal equipment to measure SSB information.
  • the SMTC includes one or more of the period of the SMTC, the duration of the SMTC (or called the window length), and the time offset of the SMTC.
  • the period of SMTC can be 5ms, 10ms, 20ms, 40ms, 80ms, 160ms.
  • the length of the SMTC can also be referred to as the duration of the SMTC, which can be 1ms, 2ms, 3ms, 4ms, 5ms.
  • the time offset of the SMTC can be any value in the set ⁇ 0,1,...,SMTC period-1 ⁇ , and the unit of the value in the set ⁇ is milliseconds (ms).
  • the terminal device can determine the starting position of the SMTC according to the following formula:
  • subframe Offset or(Offset+5)
  • SFN represents the system frame number
  • FLOOR represents rounding down
  • subframe represents the number of the subframe
  • CEIL represents the rounding function
  • Period represents the period of SMTC.
  • One or more SMTCs can be configured for the MO.
  • a same-frequency MO can be configured with two SMTCs (SMTC1 and SMTC2), and these two SMTCs can have the same Time offset, different periods (for example, the period of SMTC2 is smaller than the period of SMTC1); only one SMTC (SMTC1) is configured for inter-frequency measurement.
  • the period of SMTC2 is shorter than that of SMTC1; the timing offset of SMTC2 follows SMTC1, which is equal to periodicityAndOffset mod periodicity; SMTC2 currently only supports co-frequency measurement configuration.
  • FIG. 3 is a schematic diagram of the configuration of the measurement interval and the two SMTCs of the measurement object provided by an embodiment of the application.
  • SMTC1 As an example, as shown in Figure 3, suppose that a network device configures two SMTCs for the same MO, namely SMTC1 and SMTC2.
  • the SMTC offset and length (such as 5ms) of the two are the same.
  • the period of SMTC1 is 20ms, and the period of SMTC2 is 20ms.
  • the period is 10ms.
  • the period of network configuration MG is 20ms, and the length of MG is 6ms.
  • the SMTC partially overlaps the measurement interval, that is to say, the measurement interval in FIG. 3 can only cover a part of the SMTC of the SMTC2 of the MO.
  • Fig. 4 is an embodiment of the application.
  • FIG. 5 is a schematic diagram of the implementation of the SMTC provided by an embodiment of the application outside the measurement interval.
  • the network device is configured with two SMTCs for the same frequency MO, namely SMTC1 and SMTC2, the SMTC offset and length (for example, 5ms) of the two are the same, the period of SMTC1 is 20ms, the period of SMTC2 is 10ms, and The inter-frequency MO is only configured with one SMTC, and the specific configuration is shown in Figure 4. And suppose that the network configuration MG period is 20ms, and the MG length is 6ms.
  • the network device configures two SMTCs for the same frequency MO, namely SMTC1 and SMTC2, the SMTC offset and length (for example, 5ms) of the two are the same, the period of SMTC1 is 20ms, the period of SMTC2 is 10ms, and The inter-frequency MO is only configured with one SMTC, and the specific configuration is shown in Figure 5. And suppose that the network configuration MG period is 20ms, and the MG length is 6ms.
  • the SSB measurement time configuration window SMTC is defined.
  • the reference signal is in addition to the SSB.
  • CSI-RS there is no time domain position constraint for CSI-RS measurement. Since CSI-RS resources are more flexible, including periodic and aperiodic, etc., if the CSI-RS measurement time domain is not restricted , It will lead to the complexity of the realization of the mobility measurement, resulting in a decrease in the efficiency of the mobility measurement.
  • the present application provides a measurement method to implement the CSI-RS measurement time domain constraint, thereby effectively reducing the implementation complexity of mobility measurement and improving the efficiency of mobility measurement.
  • FIG. 6 is a flowchart of the measurement method provided by one of the embodiments of the application.
  • the method includes:
  • the terminal device can perform mobility measurement based on CSI-RS, and the first time domain information in this embodiment is used to indicate the time domain position of the CSI-RS, so the terminal device can perform mobility measurements based on the first time domain information. Quickly determine where to measure the CSI-RS in the time domain.
  • the first time domain information may be used to indicate at least one of the following information: measurement period, measurement length, and measurement start position. It is understandable that the time domain can be determined according to the measurement period. The period of the range, the length of the time domain range can be determined according to the measurement length, and the position from which to start the measurement can be determined according to the measurement start position. Therefore, the periodic time domain range can be accurately determined based on the above information. Therefore, you can obtain the first Time domain information to determine which time domain range the CSI-RS is measured on.
  • the first time domain information can be obtained by receiving time-domain-related information sent from the network device; or, the first time-domain information can also be pre-arranged with the network device to use At the time, the first time domain information is obtained locally from the terminal device; or the first time domain information can be pre-defined through the protocol to obtain the first time domain information.
  • it may be any one of the foregoing implementation manners, or it may also be any extensible implementation manner, as long as the first time domain information indicating the time domain position of the measurement object can be acquired.
  • S602 Perform mobility measurement according to the first time domain information.
  • the terminal device can measure the CSI-RS within the time domain range indicated by the first time domain information.
  • the specific mobility measurement is The implementation manner has been introduced in the foregoing embodiment, and will not be repeated here.
  • the measurement method provided by the embodiment of the present application includes: acquiring first time domain information, where the first time domain information is used to indicate the time domain of measuring the channel state information reference signal CSI-RS. Perform mobility measurement according to the first time domain information.
  • the first time domain information for indicating the time domain position of measuring the CSI-RS
  • the mobility measurement of the CSI-RS can be performed at the time domain position indicated by the first time domain information, so as to realize the CSI-RS measurement.
  • the measurement time domain is constrained, thereby reducing the implementation complexity of mobility measurement and improving the efficiency of mobility measurement.
  • a set of measurement time window configurations dedicated to CSI-RS measurement may be newly introduced, and the first time domain information may include the newly introduced at least one measurement time configuration information, and then the first time window configuration may be acquired.
  • One possible way of realizing domain information can be:
  • At least one measurement time configuration information sent from the network device is received.
  • the measurement time configuration information sent by the network device can be defined as, for example, channel state information reference signal measurement timing configuration information (CSI-RS measurement timing configuration, CMTC), or it can also be other names, as long as the measurement time configuration information is used It only needs to indicate the time domain position of measuring the CSI-RS, and all other possible implementation names can be used as the measurement time configuration information in this embodiment.
  • CSI-RS measurement timing configuration CMTC
  • CMTC channel state information reference signal measurement timing configuration information
  • CMTC measurement time configuration information
  • the first time domain information in this embodiment is used to indicate at least one of the measurement period, the measurement length, and the measurement start position.
  • the measurement time configuration information includes at least one of the following information: a first measurement period, a first measurement length, and a first measurement start position.
  • the measurement time configuration information in this embodiment may also include a first measurement offset (Offset).
  • the first measurement start position may be based on the first measurement period and the first measurement period.
  • the measurement offset is determined.
  • the terminal device may determine the first measurement start position of the CMTC according to the following formula, for example:
  • subframe Offset or(Offset+5)
  • SFN represents the system frame number
  • FLOOR represents rounding down
  • subframe represents the number of the subframe
  • CEIL represents the rounding function
  • Period represents the first measurement period
  • Offset represents the first measurement offset.
  • the first measurement period is any one of the first period set
  • the first period set is a subset of the set ⁇ 5 ⁇ 2 0 , 5 ⁇ 2 1 , 5 ⁇ 2 2 , 5 ⁇ 2 3 ,..., 5 ⁇ 2 Z ⁇ milliseconds, where Z is an integer greater than or equal to 0 .
  • the first measurement length is any one of the first length set
  • the first length set is a subset of the set ⁇ 1, 2, 3, 4, 5,..., 10 ⁇ milliseconds.
  • the first measurement offset is a positive integer less than or equal to the first measurement period.
  • the first measurement period may be any one of the set ⁇ 5, 10, 20, 40 ⁇ , or the first measurement period may be any one of the set ⁇ 10, 20, 40 ⁇ ;
  • the first measurement length can be any one of the set ⁇ 1,2,3,4,5 ⁇ ;
  • the first measurement offset can be any one of the set ⁇ 10, 20, 40 ⁇ .
  • the unit of the value in each set ⁇ described above is milliseconds (ms).
  • various possible implementation modes of the first measurement period, the first measurement length, and the first measurement offset can be selected according to actual requirements.
  • At least one measurement time configuration information sent from the network device can be received, so at least one CMTC can be set for the MO:
  • At least one measurement time configuration information can be configured with two measurement time configuration information.
  • the MO is configured with one measurement time configuration information in at least one measurement time configuration information.
  • one piece of measurement time configuration information in at least one piece of measurement time configuration information can be configured for the same-frequency MO, and one piece of measurement time configuration information can be configured for at least one piece of measurement time configuration information for the inter-frequency MO.
  • This configuration can effectively reduce the difficulty of implementation.
  • X pieces of measurement time configuration information in at least one piece of measurement time configuration information can be set for intra-frequency MO
  • Y pieces of measurement time configuration information in at least one piece of measurement time configuration information can be set for inter-frequency MO.
  • Measurement time configuration information where X is an integer greater than or equal to 2, and Y is an integer greater than or equal to 2. The specific number of X and Y configurations may depend on the capabilities of the terminal device.
  • the CSI-RS measurement can be configured in the MO.
  • the terminal device can select one of the multiple CMTCs, so that the mobility measurement can be performed according to the selected CMTC. Select the possible implementation of CMTC to introduce:
  • the second measurement time configuration information in the at least two measurement time configuration information is selected, where the second measurement time configuration information is used to perform mobility measurement.
  • the second measurement time configuration information is the smallest first measurement period in the at least two measurement time configuration information.
  • the selection is based on the period first, and the time configuration information with the smallest first measurement period is selected for mobility measurement.
  • it may be set that at least two measurement time configuration information have the same length, or the measurement There is no limit to the length of the time configuration information. In either case, it is preferable to select the one with the smallest first measurement period.
  • the second measurement time configuration information is the shortest first measurement length among the at least two measurement time configuration information.
  • the selection is based on the cycle first, and when the first measurement cycle is the same, the selection is made according to the first measurement length, and the one with the shortest first measurement length is selected as the second measurement time configuration information.
  • the second measurement time configuration information may be determined by the terminal device.
  • Any CMTC may be determined among multiple CMTCs based on the selection of the terminal device.
  • the basic unit of measurement time may be CMTC and/or MGRP itself.
  • FIG. 7 is the measurement time configuration provided by an embodiment of this application. A schematic diagram of a possible configuration of information.
  • CMTC1 As an example, as shown in Figure 7, suppose that a network device configures two CMTCs for the same MO, namely CMTC1 and CMTC2.
  • the CMTC offset and length (for example, 5ms) of the two are the same.
  • the period of CMTC1 is 20ms
  • the period of CMTC2 is 20ms.
  • the period is 10ms.
  • the network configuration MG period is 20ms, and the MG length is 6ms.
  • the CMTC partially overlaps the measurement interval, that is, the measurement interval in FIG. 7 can only cover a part of the CMTC of the CMTC2 of the MO.
  • CMTCs may also happen that all CMTCs are within the measurement interval, or it may happen that all CMTCs are outside the measurement interval.
  • the implementation is similar to the SMTC implementation described above. You can refer to the above The implementation of the introduced FIG. 7 and the SMTC introduced above are determined, and will not be repeated here.
  • a set of measurement time window configuration dedicated to CSI-RS measurement is newly introduced, so as to follow the time domain configuration limitation of SSB measurement, realize the limitation of CSI-RS resource configuration, and avoid too many configuration types.
  • the time domain is too flexible and increases the complexity of terminal equipment implementation.
  • the SMTC framework is referred to to realize the introduction of new measurement time configuration information, which can ensure better compatibility with the existing measurement configuration signaling structure, MG configuration, etc., with minor changes.
  • CMTC may not be introduced, but SMTC is multiplexed in the CSI-RS measurement process.
  • the implementation manner is described below:
  • acquiring the first time domain information includes:
  • the first time domain information includes at least one of the following information: a second measurement period of the SMTC, a second measurement length of the SMTC, and a second measurement start position of the SMTC.
  • the first time domain information may also include the second measurement offset of the SMTC, where the second measurement start position is determined according to the second measurement period and the second measurement offset, which The determination method is the same as the implementation method of determining the measurement start position of the SMTC described above, and will not be repeated here.
  • the reference signal follows the SMTC constraints and configuration in the time domain, that is, only the CSI-RS or the CSI-RS in the SMTC window SSB, the terminal device is only required to perform the measurement.
  • the measurement of CSI-RS reuses the existing configuration of SMTC, and the definition requirements of gap configuration and measurement time in this embodiment also follow the current existing schemes of SMTC and Gap.
  • the basic unit of measurement time is SMTC. And/or MGRP itself.
  • MO includes both CSI-RS measurement and SSB measurement.
  • the terminal device cannot refer to SMTC. At this time, it can be based on the period and length of the CSI-RS itself. Measure CSI-RS.
  • the terminal device may receive the first indication information sent from the network device, where the first indication information is used to indicate the third measurement start position.
  • the terminal device can acquire the period of the CSI-RS and the length of the CSI-RS, where the first time domain information includes at least one of the following information: the period of the CSI-RS, the length of the CSI-RS, and the third measurement start Location.
  • the first step in this embodiment is The time domain information can include the period of the CSI-RS and the length of the CSI-RS.
  • the terminal device in this embodiment can also obtain the first indication information sent by the network device to obtain the third measurement start position. Therefore, the measurement period in this embodiment is the period of the CSI-RS, and the measurement length is the CSI-RS.
  • the measurement start position is the third measurement start position.
  • the basic unit of measurement time is the CSI-RS period itself.
  • FIG. 8 is a schematic diagram of a measurement window determined based on CSI-RS according to an embodiment of the application.
  • the first time domain information includes the CSI-RS period and CSI-RS.
  • the length of the RS and the third measurement start position, the period of the measurement window of the MO is 10ms, and the length of the measurement window is 5ms, and the implementation is shown in FIG. 8.
  • Figure 8 shows the case where each measurement window is all within the measurement interval. In other possible implementations, it can also be partially overlapped or all outside the measurement interval. The implementation is similar to the one described above. Here No longer.
  • the above introduction is to directly perform the CSI-RS mobility measurement based on the CSI-RS period and the CSI-RS length. There is no restriction on the measurement period and length.
  • the network device transmits the first An indication information can also limit the period and/or length of measuring CSI-RS on the basis of the period of CSI-RS and the length of CSI-RS.
  • the first indication information is also used to indicate that the length of the measurement window for measuring the CSI-RS does not exceed the first length threshold.
  • the length of the measurement window for measuring CSI-RS does not exceed 5 ms, and the period of measuring CSI-RS is not limited.
  • the first indication information is also used to indicate that the measurement period for measuring the CSI-RS is not greater than the first period threshold.
  • the period of measuring CSI-RS is not greater than 40 ms, and the length of the measurement window for measuring CSI-RS is not limited.
  • the first indication information is also used to indicate that the length of the measurement window for measuring CSI-RS does not exceed the first length threshold, and the first indication information is also used to indicate the measurement period of measuring CSI-RS Not greater than the first cycle threshold.
  • the period of measuring CSI-RS is not more than 40ms, and the length of the measurement window that indicates that CSI-RS is measured is not more than 5ms.
  • Which one of the foregoing implementation manners is specifically adopted can be determined according to the first indication information of the network device, and the first length threshold and the first period threshold described above are also indicated by the network device.
  • the network device can directly or indirectly indicate the third measurement start position.
  • the above description is the implementation manner of directly indicating the third measurement start position through the first indication information.
  • the third measurement start position can also be obtained indirectly by decoding the reference sequence sent by the network device.
  • the problem of CSI-RS measurement time domain configuration constraints is solved, so as to reduce the problem of too flexible CSI-RS resource configuration and reduce the complexity of the implementation of mobility measurement. Degree to improve measurement efficiency.
  • this application can also adopt the CSI-RS period and the length of the CSI-RS to perform mobility measurement through protocol pre-configuration, and make certain restrictions or restrictions on the period and length of the CSI-RS. Constraints to determine the time domain position and starting position of the CSI-RS.
  • the first time domain information is configured by the protocol, where the first time domain information includes the period of the CSI-RS, the length of the CSI-RS, and the fourth measurement start position.
  • the implementation manner is similar to the implementation manner of the first indication information indication introduced in the foregoing embodiment, except that the first time domain information in this embodiment is pre-configured by the protocol and does not require a network device to indicate.
  • the first time domain information further includes that the length of the measurement window for measuring the CSI-RS does not exceed the second length threshold.
  • the length of the measurement window for measuring CSI-RS does not exceed 5 ms, and the period of measuring CSI-RS is not limited.
  • the first time domain information further includes that the measurement period for measuring the CSI-RS is not greater than the second period threshold.
  • the period of measuring CSI-RS is not greater than 40 ms, and the length of the measurement window for measuring CSI-RS is not limited.
  • the first time domain information further includes that the length of the measurement window for measuring CSI-RS does not exceed the second length threshold, and the first time domain information further includes that the measurement period for measuring CSI-RS is not greater than The second cycle threshold.
  • the period of measuring CSI-RS is not more than 40ms, and the length of the measurement window that indicates that CSI-RS is measured is not more than 5ms.
  • the fourth measurement start position may be directly indicated by the network device through the second indication information.
  • the fourth measurement start position is indirectly indicated by the network device through the reference sequence.
  • the basic unit of the measurement time in this embodiment may be the CSI-RS period itself.
  • the CSI-RS measurement time domain configuration is constrained to reduce the problem of too flexible CSI-RS resource configuration, thereby improving the measurement efficiency, and through protocol preconfiguration, no additional signaling is introduced. Configuration and overhead.
  • the network device can also obtain the first time domain information, and send the CSI-RS according to the first time domain information.
  • the following is a measurement method on the network device side with reference to FIG. 9 Make an introduction.
  • FIG. 9 is a flowchart of a measurement method provided by another embodiment of this application.
  • the method includes:
  • the implementation manner for the network device to obtain the first time domain information is similar to that described above.
  • it may be measurement time configuration information determined by the network device; or may be time domain information of multiplexing SMTC; or may be
  • the specific implementation manner can refer to the introduction in the foregoing embodiment.
  • S902 Send a CSI-RS according to the first time domain information.
  • the network device sends the CSI-RS according to the first time domain information, so that the terminal device can measure the CSI-RS within the time domain indicated by the first time domain information, thereby effectively reducing the complexity of mobility measurement and improving Measuring efficiency.
  • FIG. 10 is a first structural diagram of a measuring device provided by an embodiment of this application.
  • the measurement device 100 may include an acquisition module 1001 and a processing module 1002, where:
  • the acquiring module 1001 is configured to acquire first time-domain information, where it is used to indicate the time-domain position of the CSI-RS for measuring the channel state information reference signal;
  • the processing module 1002 is configured to perform mobility measurement according to the first time domain information.
  • the first time domain information is used to indicate at least one of the following information: measurement period, measurement length, and measurement start position.
  • the first time domain information includes at least one piece of measurement time configuration information
  • the acquiring module 1001 is specifically configured to:
  • the at least one measurement time configuration information sent from the network device is received, where the measurement time configuration information includes at least one of the following: a first measurement period, a first measurement length, and a first measurement start position.
  • the measurement time configuration information further includes a first measurement offset, wherein the first measurement start position is based on the first measurement period and the first measurement offset The amount is determined.
  • the first measurement period is any one of the first period set
  • the first period set is a subset of the set ⁇ 5 ⁇ 2 0 , 5 ⁇ 2 1 , 5 ⁇ 2 2 , 5 ⁇ 2 2 ,..., 5 ⁇ 2 Z ⁇ milliseconds, where Z is greater than or equal to 0 The integer.
  • the first measurement length is any one of the first length set
  • the first length set is a subset of the set ⁇ 1, 2, 3, 4, 5,..., 10 ⁇ milliseconds.
  • the first measurement offset is a positive integer less than or equal to the first measurement period.
  • the intra-frequency measurement object MO is configured with two of the at least one measurement time configuration information
  • the inter-frequency MO is configured with the at least one measurement time configuration information.
  • One piece of the measurement time configuration information is configured with two of the at least one measurement time configuration information.
  • the intra-frequency MO is configured with one of the at least one measurement time configuration information
  • the inter-frequency MO is configured with one of the at least one measurement time configuration information.
  • the measurement time configuration information is configured with one of the at least one measurement time configuration information.
  • the intra-frequency MO is configured with X of the at least one measurement time configuration information
  • the inter-frequency MO is configured with Y of the at least one measurement time configuration information.
  • the X is an integer greater than or equal to 2
  • the Y is an integer greater than or equal to 2.
  • the measurement configuration of the CSI-RS is in the MO, and if the MO is configured with at least two measurement time configuration information, select one of the at least two measurement time configuration information The second measurement time configuration information, where the second measurement time configuration information is used to perform the mobility measurement.
  • the second measurement time configuration information is the smallest first measurement period in the at least two measurement time configuration information.
  • the second measurement time configuration information is the first measurement length in the at least two measurement time configuration information shortest.
  • the second measurement time configuration information is determined by the terminal device.
  • the acquiring module 1001 is specifically configured to:
  • the synchronization signal block measurement timing configuration information SMTC of the MO Acquire the synchronization signal block measurement timing configuration information SMTC of the MO, where the first time domain information includes at least one of the following information: a second measurement period of the SMTC, a second measurement length of the SMTC, The second measurement start position of the SMTC.
  • the first time domain information further includes a second measurement offset of the SMTC, wherein the second measurement start position is based on the second measurement period and the The second measurement offset is determined.
  • the acquiring module 1001 is specifically configured to:
  • the first time domain information includes at least one of the following information: the period of the CSI-RS and the length of the CSI-RS , The third measurement starting position.
  • the first indication information is further used to indicate that the length of the measurement window for measuring the CSI-RS does not exceed a first length threshold
  • the first indication information is also used to indicate that the measurement period for measuring the CSI-RS is not greater than a first period threshold.
  • processing module 1002 is further configured to:
  • the reference sequence sent by the network device is decoded to obtain the third measurement start position.
  • the first time domain information is configured by a protocol, where the first time domain information includes the period of the CSI-RS, the length of the CSI-RS, and the fourth measurement starting point.
  • the first time domain information further includes:
  • the length of the measurement window for measuring the CSI-RS does not exceed the second length threshold
  • the measurement period for measuring the CSI-RS is not greater than the second period threshold.
  • the fourth measurement start position is indicated by the network device through second indication information
  • the fourth measurement start position is indicated by the network device through a reference sequence.
  • the measurement device provided in the embodiment of the present application can execute the technical solution shown in the foregoing method embodiment, and its implementation principles and beneficial effects are similar, and details are not described herein again.
  • FIG. 11 is a second structural diagram of a measuring device provided by an embodiment of this application.
  • the measuring device 110 may include an obtaining module 1101 and a sending module 1102, where:
  • the acquiring module 1101 is configured to acquire first time-domain information, where the first time-domain information is used to indicate a time-domain position of the measurement channel state information reference signal CSI-RS;
  • the sending module 1102 is configured to send the CSI-RS according to the first time domain information.
  • the first time domain information is used to indicate at least one of the following information: measurement period, measurement length, and measurement start position.
  • the first time domain information includes at least one piece of measurement time configuration information
  • the obtaining module 1101 is specifically configured to:
  • the at least one measurement time configuration information is determined, and the measurement time configuration information includes at least one of the following: a first measurement period, a first measurement length, and a first measurement start position.
  • the sending module 1102 is further configured to:
  • the measurement time configuration information further includes a first measurement offset, wherein the first measurement start position is based on the first measurement period and the first measurement offset The amount is determined.
  • the first measurement period is any one of the first period set
  • the first period set is a subset of the set ⁇ 5 ⁇ 2 0 , 5 ⁇ 2 1 , 5 ⁇ 2 2 , 5 ⁇ 2 3 ,..., 5 ⁇ 2 Z ⁇ milliseconds, where Z is greater than or equal to 0 The integer.
  • the first measurement length is any one of the first lengths
  • the first length is a subset of the set ⁇ 1, 2, 3, 4, 5,..., 10 ⁇ milliseconds.
  • the first measurement offset is a positive integer less than or equal to the first measurement period.
  • the intra-frequency measurement object MO is configured with two of the at least one measurement time configuration information
  • the inter-frequency MO is configured with the at least one measurement time configuration information.
  • One piece of the measurement time configuration information is configured with two of the at least one measurement time configuration information.
  • the intra-frequency MO is configured with one of the at least one measurement time configuration information
  • the inter-frequency MO is configured with one of the at least one measurement time configuration information.
  • the measurement time configuration information is configured with one of the at least one measurement time configuration information.
  • the intra-frequency MO is configured with X of the at least one measurement time configuration information
  • the inter-frequency MO is configured with Y of the at least one measurement time configuration information.
  • the X is an integer greater than or equal to 2
  • the Y is an integer greater than or equal to 2.
  • the acquiring module 1101 is specifically configured to:
  • the synchronization signal block measurement timing configuration information SMTC of the MO Acquire the synchronization signal block measurement timing configuration information SMTC of the MO, where the first time domain information includes at least one of the following information: a second measurement period of the SMTC, a second measurement length of the SMTC, The second measurement start position of the SMTC.
  • the first time domain information further includes a second measurement offset of the SMTC, wherein the second measurement start position is based on the second measurement period and the The second measurement offset is determined.
  • the acquiring module 1101 is specifically configured to:
  • the first time domain information includes at least one of the following information: the period of the CSI-RS and the length of the CSI-RS , The third measurement starting position.
  • the sending module 1102 is further configured to:
  • the first indication information is further used to indicate that the length of the measurement window for measuring the CSI-RS does not exceed a first length threshold
  • the first indication information is also used to indicate that the measurement period for measuring the CSI-RS is not greater than a first period threshold.
  • the sending module 1102 is further configured to:
  • the first time domain information is configured by a protocol, where the first time domain information includes the period of the CSI-RS, the length of the CSI-RS, and the fourth measurement starting point.
  • the first time domain information further includes:
  • the length of the measurement window for measuring the CSI-RS does not exceed the second length threshold
  • the measurement period for measuring the CSI-RS is not greater than the second period threshold.
  • the fourth measurement start position is indicated by the network device through second indication information
  • the fourth measurement start position is acquired through the instruction of the network device reference sequence.
  • the measurement device provided in the embodiment of the present application can execute the technical solution shown in the foregoing method embodiment, and its implementation principles and beneficial effects are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • the terminal device 120 may include: a transceiver 21, a memory 22, and a processor 23.
  • the transceiver 21 may include: a transmitter and/or a receiver.
  • the transmitter can also be referred to as a transmitter, a transmitter, a transmitting port, or a transmitting interface
  • the receiver can also be referred to as a receiver, a receiver, a receiving port, or a receiving interface, and other similar descriptions.
  • the transceiver 21, the memory 22, and the processor 23 are connected to each other through a bus 24.
  • the memory 22 is used to store program instructions
  • the processor 23 is configured to execute program instructions stored in the memory, so as to enable the terminal device 120 to execute any of the measurement methods shown above.
  • the receiver of the transceiver 21 can be used to perform the receiving function of the terminal device in the above-mentioned measurement method.
  • FIG. 13 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • the network device 130 may include: a transceiver 21, a memory 22, and a processor 23.
  • the transceiver 21 may include: a transmitter and/or a receiver.
  • the transmitter can also be referred to as a transmitter, a transmitter, a transmitting port, or a transmitting interface
  • the receiver can also be referred to as a receiver, a receiver, a receiving port, or a receiving interface, and other similar descriptions.
  • the transceiver 21, the memory 22, and the processor 23 are connected to each other through a bus 24.
  • the memory 22 is used to store program instructions
  • the processor 23 is configured to execute the program instructions stored in the memory, so as to enable the network device 130 to execute any of the measurement methods shown above.
  • the receiver of the transceiver 21 can be used to perform the receiving function of the network device in the above-mentioned measurement method.
  • An embodiment of the present application provides a computer-readable storage medium in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, they are used to implement the above-mentioned measurement method.
  • An embodiment of the present application provides a computer-readable storage medium in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, they are used to implement the above-mentioned measurement method.
  • the embodiments of the present application may also provide a computer program product, which can be executed by a processor, and when the computer program product is executed, it can implement the measurement method executed by any of the above-mentioned terminal devices.
  • the communication device, computer-readable storage medium, and computer program product of the embodiments of the present application can execute the measurement method executed by the above-mentioned terminal device.
  • the specific implementation process and beneficial effects refer to the above, and will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the aforementioned computer program can be stored in a computer readable storage medium.
  • the computer program When the computer program is executed by the processor, it realizes the steps including the foregoing method embodiments; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.

Abstract

Un procédé et un appareil de mesure sont divulgués. Le procédé comprend : l'acquisition de premières informations de domaine temporel, les premières informations de domaine temporel étant utilisées pour indiquer une position dans le domaine temporel à laquelle un signal de référence d'informations d'état de canal (CSI-RS) est mesuré ; et la réalisation d'une mesure de mobilité selon les premières informations de domaine temporel. Au moyen de l'acquisition de premières informations de domaine temporel utilisées pour indiquer une position dans le domaine temporel à laquelle un CSI-RS est mesuré, la mesure de mobilité peut être réalisée sur le CSI-RS au niveau de la position dans le domaine temporel indiquée par les premières informations de domaine temporel, de telle sorte qu'un domaine temporel pour la mesure du CSI-RS est restreint, ce qui permet de réduire la complexité de mise en œuvre d'une mesure de mobilité et d'améliorer l'efficacité de mesure de mobilité.
PCT/CN2020/095457 2020-06-10 2020-06-10 Procédé et appareil de mesure WO2021248384A1 (fr)

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