WO2022042625A1 - Procédé d'émission de signal de référence de communication sans fil, système, dispositif de réseau et dispositif terminal - Google Patents

Procédé d'émission de signal de référence de communication sans fil, système, dispositif de réseau et dispositif terminal Download PDF

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Publication number
WO2022042625A1
WO2022042625A1 PCT/CN2021/114666 CN2021114666W WO2022042625A1 WO 2022042625 A1 WO2022042625 A1 WO 2022042625A1 CN 2021114666 W CN2021114666 W CN 2021114666W WO 2022042625 A1 WO2022042625 A1 WO 2022042625A1
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WIPO (PCT)
Prior art keywords
reference signal
additional reference
terminal device
location
indication information
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PCT/CN2021/114666
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English (en)
Chinese (zh)
Inventor
雷珍珠
周化雨
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展讯半导体(南京)有限公司
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Publication of WO2022042625A1 publication Critical patent/WO2022042625A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the technical field of electronic communication, and in particular, to a method, system, network terminal and terminal device for transmitting a wireless communication reference signal.
  • the terminal equipment In the idle/inactive state, the terminal equipment (UE) frequently wakes up to perform related activities (ie, time-frequency synchronization, AGC (automatic gain control) adjustment, and measurement of the serving cell, etc.) will increase the number of terminal equipment Therefore, reducing the number of times that the terminal device wakes up in the idle/inactive state is a topic currently being discussed by 3GPP (3rd Generation Partnership Project).
  • related activities ie, time-frequency synchronization, AGC (automatic gain control) adjustment, and measurement of the serving cell, etc.
  • 3GPP's solution is to introduce an additional reference signal (additional RS, ARS) in the idle/inactive state to reduce the number of times the terminal equipment wakes up, that is, through the additional reference signal, the terminal equipment can
  • additional RS additional reference signal
  • ARS additional reference signal
  • the technical problem to be solved by the present invention is to provide a wireless communication reference signal transmission method, system, network terminal and terminal equipment in order to overcome the defect of lack of stable and effective additional reference signal transmission mechanism in the prior art.
  • a method for transmitting a wireless communication reference signal is applied to a terminal device, and the transmission method includes:
  • the terminal device obtains the indication information transmitted by the network
  • the terminal device determines whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information
  • the resource location of the additional reference signal is determined according to the relationship between the additional reference signal and the PO location within the at least one paging cycle
  • the resource location of the additional reference signal is determined according to the relationship between the additional reference signal and the SSB location within the at least one paging cycle.
  • the step of determining the resource location of the additional reference signal according to the association relationship between the additional reference signal and the PO location includes:
  • the resource position of the additional reference signal is determined by the PO position and its corresponding first offset (offset), where the first offset is the offset between the additional reference signal and the PO obtained in advance by the terminal device through a high-level instruction;
  • the step of determining the resource location of the additional reference signal according to the association relationship between the additional reference signal and the SSB location includes:
  • the resource location of the additional reference signal is determined by the SSB location and the corresponding second offset, where the second offset is the additional reference signal pre-obtained by the terminal device through a high-level instruction and the additional reference signal located before the PO and different from the additional reference signal.
  • the offset between the closest SSBs of the PO is determined by the SSB location and the corresponding second offset, where the second offset is the additional reference signal pre-obtained by the terminal device through a high-level instruction and the additional reference signal located before the PO and different from the additional reference signal.
  • the transmission method further includes:
  • the resource position of the additional reference signal is determined by the PO position and its corresponding first offset.
  • the high-level instruction includes a system broadcast message or RRC (Radio Resource Control).
  • RRC Radio Resource Control
  • the step of the terminal device acquiring the indication information transmitted by the network includes:
  • the terminal device obtains the indication information transmitted by the network by receiving a wake-up signal (WUS, wake up signal) or Paging (paging) DCI (downlink control information).
  • WUS wake-up signal
  • Paging paging
  • DCI downlink control information
  • the terminal equipment includes NR (5G (5th generation mobile communication technology) NR, global 5G standard) equipment; and/or,
  • the additional reference signal includes TRS (Time reference signal, time reference signal) or CSI-RS (Channel state information reference signal, channel state information reference signal).
  • a method for transmitting a wireless communication reference signal is applied to a network terminal device, and the transmission method includes:
  • the network terminal device generates the indication information transmitted by the network and sends the indication information to the above-mentioned terminal device, so that the terminal device judges whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information, If yes, determine the resource location of the additional reference signal through the relationship between the additional reference signal and the PO position in the at least one paging cycle; The location association determines the resource location of the additional reference signal.
  • a method for transmitting a wireless communication reference signal comprising:
  • the network terminal device generates indication information of network transmission and sends the indication information to the above-mentioned terminal device;
  • the terminal device determines whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information
  • the resource location of the additional reference signal is determined according to the relationship between the additional reference signal and the PO location within the at least one paging cycle
  • the resource location of the additional reference signal is determined according to the relationship between the additional reference signal and the SSB location within the at least one paging cycle.
  • a method for transmitting a wireless communication reference signal is applied to a terminal device, and the transmission method includes:
  • the terminal device obtains the indication information transmitted by the network
  • the terminal device determines whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information
  • the location of the additional reference signal is associated with the SSB location.
  • the first transmission parameter configuration and the second transmission parameter configuration are respectively transmission parameter configurations pre-obtained by the terminal device through a high-level instruction.
  • the high-level instruction includes a system broadcast message or RRC.
  • the transmission parameter configuration includes the start position and period of the additional reference signal.
  • the transmission method further includes:
  • the resource location of the additional reference signal is determined according to the first transmission parameter configuration in response to the time domain distance between the SSB closest to the PO before the PO and the PO is greater than or equal to a preset threshold.
  • the step of the terminal device acquiring the indication information transmitted by the network includes:
  • the terminal device obtains the indication information transmitted by the network by receiving the wake-up signal or Paging DCI.
  • the terminal device includes an NR device; and/or,
  • the additional reference signal includes TRS or CSI-RS.
  • a method for transmitting a wireless communication reference signal is applied to a network terminal device, and the transmission method includes:
  • the network terminal device generates the indication information transmitted by the network and sends the indication information to the above-mentioned terminal device, so that the terminal device judges whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information, If yes, select the first transmission parameter configuration, and determine the resource location of the additional reference signal according to the first transmission parameter configuration in at least one subsequent paging cycle, and the corresponding resource position under the first transmission parameter configuration
  • the location of the additional reference signal is associated with the PO location, if not, select the second transmission parameter configuration, and determine the resource location of the additional reference signal according to the second transmission parameter configuration in the subsequent at least one paging cycle,
  • the location of the corresponding additional reference signal under the second transmission parameter configuration is associated with the SSB location.
  • a method for transmitting a wireless communication reference signal comprising:
  • the network terminal device generates indication information of network transmission and sends the indication information to the above-mentioned terminal device;
  • the terminal device determines whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information
  • the location of the additional reference signal is associated with the SSB location.
  • a terminal device including:
  • an indication information receiving module configured to obtain indication information transmitted by the network
  • a monitoring PO judgment module configured to judge whether it is necessary to monitor the PO in at least one subsequent paging cycle according to the indication information
  • a first location determination module configured to, in response to the need to monitor the PO, determine the resource location of the additional reference signal through the association between the additional reference signal and the PO location within the at least one paging cycle;
  • the second location determining module is configured to determine the resource location of the additional reference signal by using the association relationship between the additional reference signal and the SSB location in the at least one paging cycle in response to the need to monitor the PO.
  • the first position determination module is configured to: in response to the need to monitor the PO, determine the resource position of the additional reference signal through the PO position and its corresponding first offset, where the first offset is the terminal device The offset between the additional reference signal obtained in advance by the high-level instruction and the PO;
  • the second location determining module is configured to: in response to the need to monitor the PO, determine the resource location of the additional reference signal through the SSB location and the corresponding second offset, where the second offset is the terminal The offset between the additional reference signal pre-obtained by the device through a high-level instruction and the SSB located before the PO and closest to the PO.
  • the first location determination module is further configured to: in response to the time domain between the SSB that is closest to the PO before the PO and the PO When the distance is greater than or equal to a preset threshold, the resource position of the additional reference signal is determined by the PO position and its corresponding first offset.
  • the high-level instruction includes a system broadcast message or RRC.
  • the indication information receiving module is configured to obtain the indication information of network transmission by receiving a wake-up signal or Paging DCI.
  • the terminal device includes an NR device; and/or,
  • the additional reference signal includes TRS or CSI-RS.
  • a network terminal device comprising an instruction information generation module
  • the indication information generating module is configured to: generate indication information transmitted by the network and send the indication information to the above-mentioned terminal device, so that the terminal device judges whether it is necessary to perform at least one subsequent paging according to the indication information Monitor the PO during the period, if yes, determine the resource location of the additional reference signal through the relationship between the additional reference signal and the PO position in the at least one paging cycle, if not, pass the at least one paging cycle The relationship between the additional reference signal and the SSB location determines the resource location of the additional reference signal.
  • a system for transmitting reference signals in wireless communication comprising network terminal equipment and the above-mentioned terminal equipment;
  • the network end device is configured to generate indication information of network transmission and send the indication information to the terminal device;
  • the terminal device is configured to obtain the indication information transmitted by the network
  • the terminal device is further configured to determine, according to the indication information, whether to monitor the PO in at least one subsequent paging cycle,
  • the resource location of the additional reference signal is determined according to the relationship between the additional reference signal and the PO location within the at least one paging cycle
  • the resource location of the additional reference signal is determined according to the relationship between the additional reference signal and the SSB location within the at least one paging cycle.
  • a terminal device including:
  • an indication information receiving module configured to obtain indication information transmitted by the network
  • a monitoring PO judgment module configured to judge whether it is necessary to monitor the PO in at least one subsequent paging cycle according to the indication information
  • a first location determination module configured to select a first transmission parameter configuration in response to the need to monitor the PO, and determine the resource of the additional reference signal according to the first transmission parameter configuration in the subsequent at least one paging cycle position, the position of the corresponding additional reference signal under the first transmission parameter configuration is associated with the PO position;
  • the second location determination module is configured to select a second transmission parameter configuration in response to the need to monitor the PO, and determine the location of the additional reference signal according to the second transmission parameter configuration in the at least one subsequent paging cycle.
  • Resource location, the location of the corresponding additional reference signal under the second transmission parameter configuration is associated with the SSB location.
  • the first transmission parameter configuration and the second transmission parameter configuration are respectively transmission parameter configurations pre-obtained by the terminal device through a high-level instruction.
  • the high-level instruction includes a system broadcast message or RRC.
  • the transmission parameter configuration includes the start position and period of the additional reference signal.
  • the first location determination module is further configured to: in response to the time domain between the SSB that is closest to the PO before the PO and the PO The distance is greater than or equal to a preset threshold, and the resource location of the additional reference signal is determined according to the first transmission parameter configuration.
  • the indication information receiving module is configured to obtain the indication information of network transmission by receiving a wake-up signal or Paging DCI.
  • the terminal device includes an NR device; and/or,
  • the additional reference signal includes TRS or CSI-RS.
  • a network terminal device comprising an instruction information generation module
  • the indication information generating module is configured to: generate indication information transmitted by the network and send the indication information to the above-mentioned terminal device, so that the terminal device judges whether it is necessary to perform at least one subsequent paging according to the indication information Monitor the PO during the period, and if so, select the first transmission parameter configuration, and determine the resource location of the additional reference signal according to the first transmission parameter configuration in the at least one subsequent paging cycle, and in the first transmission
  • the position of the corresponding additional reference signal under the parameter configuration is associated with the PO position. If not, the second transmission parameter configuration is selected, and the additional reference signal is determined according to the second transmission parameter configuration in the subsequent at least one paging cycle.
  • the resource location of the signal, the location of the corresponding additional reference signal under the second transmission parameter configuration is associated with the SSB location.
  • a system for transmitting reference signals in wireless communication comprising network terminal equipment and the above-mentioned terminal equipment;
  • the network end device is configured to generate indication information of network transmission and send the indication information to the terminal device;
  • the terminal device is configured to obtain the indication information transmitted by the network
  • the terminal device is further configured to determine, according to the indication information, whether to monitor the PO in at least one subsequent paging cycle,
  • the location of the additional reference signal is associated with the SSB location.
  • An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, characterized in that, when the processor executes the computer program, the above-mentioned transmission method of the wireless communication reference signal is realized. step.
  • a computer-readable medium having computer instructions stored thereon, the computer instructions, when executed by a processor, implement the steps of the above-mentioned method for transmitting a wireless communication reference signal.
  • the wireless communication reference signal transmission method, system, network terminal and terminal device of the present invention provide a stable and effective transmission mechanism for additional reference signals.
  • the transmission mode is determined, so as to further effectively save the power consumption of the terminal device on the basis of saving the additional reference signal resource overhead, thereby improving the user experience.
  • FIG. 1 is a schematic flowchart of a method for transmitting a wireless communication reference signal according to Embodiment 2 of the present invention.
  • FIG. 2 is a schematic diagram of a DRX cycle.
  • FIG. 3 is a schematic diagram of the positions of the wake-up signal and PO.
  • FIG. 4 is a schematic diagram of the eDRX cycle.
  • FIG. 5a is a schematic diagram of the number of wake-up times of the terminal device when the channel environment is good.
  • FIG. 5b is a schematic diagram of the wake-up times of the terminal device when the channel environment is poor.
  • FIG. 6a is a schematic diagram of the wake-up times of a terminal device that sends an additional reference signal before the PO when the channel environment is good.
  • FIG. 6b is a schematic diagram of the wake-up times of a terminal device that sends an additional reference signal in front of the PO when the channel environment is poor.
  • FIG. 6c is a schematic diagram of the wake-up times of a terminal device that sends an additional reference signal before and after the SSB when the channel environment is good.
  • FIG. 6d is a schematic diagram of the wake-up times of a terminal device that sends an additional reference signal before and after the SSB when the channel environment is poor.
  • FIG. 7a is a schematic diagram of determining a resource location of an additional reference signal according to a first offset according to Embodiment 2.
  • FIG. 7b is a schematic diagram of determining the resource location of the additional reference signal according to the second offset according to Embodiment 2.
  • FIG. 8 is a schematic flowchart of a method for transmitting a wireless communication reference signal according to Embodiment 3 of the present invention.
  • FIG. 9 is a schematic structural diagram of a transmission system for a wireless communication reference signal according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic structural diagram of an electronic device implementing a method for transmitting a wireless communication reference signal according to Embodiment 7 of the present invention.
  • this embodiment provides a method for transmitting a wireless communication reference signal, the transmission method is applied to a terminal device, and the transmission method includes: the terminal device obtains indication information of network transmission; the The terminal device determines, according to the indication information, whether it needs to monitor the PO in at least one subsequent paging cycle, and if so, determines the location of the additional reference signal through the correlation between the additional reference signal and the PO position in the at least one paging cycle. Resource location, if not, determine the resource location of the additional reference signal through the association relationship between the additional reference signal and the SSB location within the at least one paging cycle.
  • This embodiment also provides a method for transmitting a wireless communication reference signal.
  • the transmission method is applied to a network end device, and the transmission method includes: the network end device generates indication information for network transmission and sends the indication information to a The above terminal device, so that the terminal device determines whether it needs to monitor the PO in at least one subsequent paging cycle according to the indication information, and if so, in the at least one paging cycle, through the additional reference signal and the PO position
  • the resource position of the additional reference signal is determined by the association relationship, and if not, the resource position of the additional reference signal is determined by the association relationship between the additional reference signal and the SSB position in the at least one paging cycle.
  • the terminal device is an NR device
  • the additional reference signal is TRS or CSI-RS, but it is not limited to this, and can be selected and adjusted according to actual needs.
  • a stable and effective transmission mechanism for additional reference signals can be provided, and the terminal equipment needs to monitor PO in at least one subsequent paging cycle and does not need to monitor PO in at least one subsequent paging cycle. , respectively determine the transmission mode, thereby further effectively saving the power consumption of the terminal device on the basis of saving the additional reference signal resource overhead, thereby improving the user experience.
  • the method for transmitting a wireless communication reference signal includes the following steps:
  • Step 101 The network end device sends the generated indication information of network transmission to the terminal device.
  • the network end device generates indication information for indicating whether the terminal device needs to monitor the subsequent PO, and sends the indication information to the terminal device.
  • Step 102 The terminal device acquires the indication information of network transmission from the network terminal device.
  • the terminal device obtains the indication information from the network by receiving a wake-up signal or Paging DCI.
  • one method in order to reduce the energy consumption of the terminal device monitoring the PO in the idle/inactive state, one method is to send a wake-up signal before the PO to indicate whether the terminal device needs to monitor the following POs or whether it needs to monitor multiple subsequent POs. Another method is that the terminal device determines whether it needs to monitor multiple subsequent POs by monitoring the PO, that is, the network carries indication information through the paging DCI to indicate whether the terminal device needs to monitor multiple subsequent POs.
  • the functions of the Paging message include: (1) sending a call request to the terminal equipment in the RRC (Radio Resource Control)_IDLE state; (2) notifying the terminal equipment in the RRC_IDLE/INACTIVE and RRC_CONNECTED (connected) states that the system information occurs (3) Earthquake and tsunami notification, instructing the radio resource control to start receiving ETWS (earthquake and tsunami warning system) primary (primary) notification and/or ETWS secondary (secondary) notification; (4) instructing the terminal device to start receiving CMAS (commercial Mobile Alerting System) notification.
  • RRC Radio Resource Control
  • the base station will first send a wake-up signal. After the terminal device detects the wake-up signal, it will monitor the paging PDCCH (Physical Downlink Control Channel) and receive the paging message. , otherwise the terminal device remains in the sleep state to save power.
  • PDCCH Physical Downlink Control Channel
  • a terminal device may use discontinuous reception (DRX) in RRC_IDLE and RRC_INACTIVE states in order to reduce power consumption.
  • the terminal equipment monitors the PO periodically (the period is the DRX period).
  • the terminal device Before the terminal device receives Paging, it needs to use a reference signal (eg, SSB) to complete time-frequency synchronization and AGC adjustment.
  • a reference signal eg, SSB
  • the power consumption of the terminal equipment in the idle state is mainly used for measuring, performing cell reselection, and monitoring the PDCCH for paging, wherein the power consumption for monitoring the PDCCH for paging accounts for most of the power consumption.
  • LTE Long Term Evolution
  • MTC Machine Type Communication
  • NB-IoT Internet of Things technology system based on mobile communication network
  • the idle state terminal mainly monitors the paging PDCCH, and the connected state terminal needs to monitor the PDCCH scheduled by the uplink and downlink data.
  • LTE focuses on the idle state terminal to monitor the paging PDCCH when designing the wake-up signal.
  • each PO is associated with a wake-up signal WUS
  • the position of the wake-up signal is a fixed gap (fixed gap) before the PO starts
  • the starting position of the gap is the configured wake-up signal
  • the actual transmitted wake-up signal is not of a fixed length, starting from the starting position of the configured maximum period of the wake-up signal, taking 1 subframe as the basic unit, and repeating or extending into multiple subframes for transmission , the maximum duration of the configured wake-up signal cannot be exceeded, and the terminal device needs to monitor the actually transmitted wake-up signal according to the power of 2 subframes.
  • a wake-up signal can be associated with multiple POs (assuming m POs), that is, once the terminal device receives the wake-up signal indication, it needs to monitor the subsequent m POs.
  • the terminal device In the idle/inactive state, for the measurement of the serving cell, the terminal device will basically perform the measurement of the serving cell in each DRX cycle.
  • the purpose of the measurement is one for cell reselection and the other for monitoring PO before Complete time-frequency synchronization and AGC adjustment.
  • the terminal device In the idle/inactive state, before the terminal device receives Paging in each DRX cycle, it needs to use 1 to 2 synchronization signal blocks (SS/PBCH block, SSB) to complete time-frequency synchronization, AGC adjustment and RRM ( radio resource management) measurements.
  • SS/PBCH block SS/PBCH block
  • AGC adjustment radio resource management
  • the terminal equipment When the channel quality of the terminal equipment is relatively good (for example, the terminal equipment is in a non-edge area of the cell), the terminal equipment generally only needs to use one synchronization signal block to complete time-frequency synchronization, AGC adjustment and RRM measurement for the serving cell.
  • the terminal equipment When the channel quality of the terminal equipment is relatively poor (for example, the terminal equipment is at the edge of the cell) or wakes up from a deep sleep state (that is, the DRX cycle is relatively large), the terminal equipment generally needs to use 2 synchronization signal blocks to complete the time-frequency synchronization. AGC adjustment and RRM measurement for serving cell.
  • each PO cannot be guaranteed (the period of the PO is at the terminal device level, and each terminal device has its own specific PO Period) are close to a certain SSB. If the distance between the SSB and the PO is large, the terminal device needs to wake up multiple times in order to receive paging (1 to 2 times for synchronization/AGC adjustment/serving cell RRM measurement, once for monitoring PO), If the SSB is close to the PO, the terminal device only needs to wake up 1 to 2 times to complete the time-frequency synchronization, AGC adjustment, measurement of the serving cell and reception of paging.
  • the terminal device when the channel environment of the terminal device is good, the terminal device generally needs to wake up twice; referring to Figure 5b, when the channel environment of the terminal device is poor or the DRX cycle is very large, The terminal device generally needs to wake up 3 times.
  • the transmission modes of the additional reference signal are generally divided into two types, one is associated with the SSB position, that is, the additional reference signal is sent before and after the SSB transmission position, and the other is An additional reference signal is sent before (and close to) the PO.
  • Mode 1 Send an additional reference signal (ARS for short) in front of the PO (and close to the PO)
  • ARS additional reference signal
  • a terminal device with a better signal environment generally needs to wake up (wake up) once.
  • a terminal device with poor signal environment generally needs to wake up twice.
  • Method 2 Send additional reference signals before and after the SSB location (and close to the PO)
  • a terminal device with a better signal environment generally needs to wake up twice.
  • a terminal device with poor signal environment generally needs to wake up twice.
  • RRM measurement is one of the most power consuming operations of terminal equipment, which is used for the mobility management of terminal equipment.
  • the power consumption is proportional to the measurement frequency and the number of measurement objects, including the number of measured SSBs, the number of cells, and the number of frequencies.
  • some RRM measurements of terminal equipment are not necessary, but consume a lot of terminal equipment power.
  • low-mobility terminal equipment does not have to measure as frequently as high-mobility terminal equipment, reducing the frequency of RRM measurement of terminal equipment. It is also a direct and effective method to reduce the power consumption of RRM measurement.
  • the RRM measurement requirement of the idle terminal equipment is that the terminal equipment performs RRM measurement (that is, RSRP (Reference Signal Received Power)/RSRQ (Reference Signal Received Quality) measurement) and cell reselection evaluation for the serving cell at least once in each DRX cycle.
  • RRM measurement that is, RSRP (Reference Signal Received Power)/RSRQ (Reference Signal Received Quality) measurement
  • cell reselection evaluation for the serving cell at least once in each DRX cycle.
  • the terminal equipment can perform RRM measurement on the serving cell every n DRX cycles (that is, RSRP/RSRQ measurement) and perform cell reselection evaluation, where the value of n is configured by the network to the terminal device.
  • Step 103 The terminal device determines, according to the indication information, whether it needs to monitor the subsequent PO in at least one subsequent paging cycle, if so, go to step 104, and if not, go to step 105.
  • the situation in which the terminal device needs to monitor PO in at least one subsequent paging cycle is different from the situation in which the terminal device does not need to monitor PO in at least one subsequent paging cycle, and the transmission position of the additional reference signal needs to be different.
  • This embodiment effectively utilizes this to propose a reference signal transmission mechanism.
  • Step 104 Determine the resource location of the additional reference signal by using the PO location and its corresponding first offset in at least one subsequent paging cycle.
  • the resource position of the additional reference signal is determined by the PO position and the corresponding first offset (offset1).
  • the first offset is the offset between the additional reference signal and the PO that is pre-obtained by the terminal device through a high-level instruction of the network.
  • the high-level instruction includes a system broadcast message or RRC.
  • the wake-up signal or Paging DCI indicates that the terminal device needs to monitor one or more following POs
  • the terminal device with a better channel environment it may still need to wake up twice to complete the AGC/time-frequency synchronization /RRM and PO monitoring. If the additional reference signal is close to the PO at this time, the terminal device with a better channel environment only needs to wake up once.
  • the PO position and its corresponding first offset are determined. Resource location of additional reference signals.
  • the network will not send the additional reference signal before the PO, and the terminal device does not need the additional reference signal (the terminal device does not need the additional reference signal The signal does not affect the configuration and transmission of the additional reference signal), and the terminal device also believes that in this case, the resource location of the additional reference signal cannot be determined through the first offset, wherein the preset threshold can be configured by high-level parameters (for example, by The size of the threshold is notified to the terminal device by means of system message broadcasting, and the unit of the threshold may be ms or time slot), or corresponding settings may be made according to actual needs.
  • the preset threshold can be configured by high-level parameters (for example, by The size of the threshold is notified to the terminal device by means of system message broadcasting, and the unit of the threshold may be ms or time slot), or corresponding settings may be made according to actual needs.
  • Step 105 Determine the resource location of the additional reference signal by using the SSB location and its corresponding second offset in at least one subsequent paging cycle.
  • the resource location of the additional reference signal is determined by the SSB location and the corresponding second offset (offset2).
  • the second offset is an offset between an additional reference signal pre-obtained by the terminal device through a high-level instruction and an SSB located before the PO and closest to the PO.
  • the high-level instruction includes a system broadcast message or RRC.
  • the wake-up signal or the Paging DCI indicates that the terminal device does not need to monitor the following one or more POs, for the terminal device with poor channel environment, it may still need to wake up in the following one or more DRXs Complete AGC/time-frequency synchronization/RRM twice. If the additional reference signal is close to the SSB at this time, the terminal equipment with poor channel environment only needs to wake up once to complete AGC/time-frequency synchronization/RRM, and the terminal equipment with good channel environment only needs to wake up once.
  • the terminal device can determine by receiving the wake-up signal or paging DCI whether there is additional reference signal transmission in the subsequent X consecutive paging cycles, that is, the network indicates to the terminal device whether the subsequent X paging cycles are through the wake-up signal or paging DCI.
  • There is additional reference signal transmission it is assumed that the indication is an additional reference signal trigger indication, 1 bit).
  • the terminal device first determines whether there is additional reference signal transmission in the subsequent X Paging cycles according to the wake-up signal or the additional reference signal trigger indication in the paging DCI, and if so, determines the additional reference signal resource according to the above transmission method. Location.
  • the method for transmitting reference signals in wireless communication can provide a stable and effective transmission mechanism for additional reference signals.
  • the first offset is used to determine the resource location of the additional reference signal.
  • the additional reference is determined by the location of the SSB before the PO and closest to the PO and the corresponding second offset.
  • the resource location of the signal can further effectively save the power consumption of the terminal device on the basis of saving the additional reference signal resource overhead, thereby improving the user experience.
  • the method for transmitting a wireless communication reference signal includes the following steps:
  • Step 101' The network end device sends the generated indication information of network transmission and the first transmission parameter configuration and the second transmission parameter configuration of the additional reference signal to the terminal device.
  • the network end device In this step, the network end device generates indication information for indicating whether the terminal device needs to monitor the PO in at least one subsequent paging cycle (in this embodiment, it also represents which set of transmission parameter configuration to instruct the terminal device to select) and additional reference
  • the first transmission parameter configuration and the second transmission parameter configuration of the signal, and the indication information and the first transmission parameter configuration and the second transmission parameter configuration of the additional reference signal are sent to the terminal device.
  • the position of the corresponding additional reference signal under the first transmission parameter configuration is associated with the PO position
  • the position of the corresponding additional reference signal under the second transmission parameter configuration is associated with the SSB position.
  • the transmission parameter configuration includes the start position and period of the additional reference signal.
  • the network configures two sets of transmission parameters of the additional reference signal (TRS/CSI-RS) for the terminal device (including the starting position, period, etc. of the additional reference signal), and one set of transmission parameters of the additional reference signal (that is, the first Transmission parameter configuration) is aligned with PO, that is, under this set of transmission parameter configuration, the additional reference signal is before PO and close to PO; the transmission parameter configuration of another set of additional reference signals (ie the second transmission parameter configuration) is aligned SSB, that is, under the configuration of the additional reference signal transmission parameters, the time domain position of the additional reference signal is close to the SSB before the PO and closest to the PO.
  • TRS/CSI-RS transmission parameters of the additional reference signal
  • Step 102' the terminal device obtains the indication information of network transmission and the first transmission parameter configuration and the second transmission parameter configuration from the network end device.
  • the terminal device obtains the indication information of the network transmission from the network by receiving the wake-up signal or Paging DCI, and also obtains the first transmission parameter configuration and the second transmission parameter configuration through high-level instructions.
  • the high-level instruction includes a system broadcast message or RRC.
  • Step 103' the terminal device judges whether it needs to monitor the subsequent PO in at least one subsequent paging cycle according to the indication information, if yes, go to step 104', if not, go to step 105'.
  • the situation in which the terminal device needs to monitor PO in at least one subsequent paging cycle is different from the situation in which the terminal device does not need to monitor PO in at least one subsequent paging cycle, and the transmission position of the additional reference signal needs to be different.
  • This embodiment effectively utilizes this to propose a reference signal transmission mechanism.
  • Step 104' Select the first transmission parameter configuration, and determine the resource location of the additional reference signal according to the first transmission parameter configuration in at least one subsequent paging cycle.
  • a first transmission parameter configuration is selected, and the resource location of the additional reference signal is determined according to the first transmission parameter configuration in the subsequent at least one paging cycle.
  • the terminal device determines the resource location of the additional reference signal by configuring the first transmission parameter of the additional reference signal.
  • the resource location of the additional reference signal is determined according to the first transmission parameter configuration .
  • the threshold can be configured by high-level parameters (for example, the terminal device is notified of the threshold size by means of system message broadcasting, and the threshold unit can be ms or time slot), or can be set according to actual needs.
  • Step 105' Select the second transmission parameter configuration, and determine the resource location of the additional reference signal according to the second transmission parameter configuration in at least one subsequent paging cycle.
  • a second transmission parameter configuration is selected, and the resource location of the additional reference signal is determined according to the second transmission parameter configuration in the subsequent at least one paging cycle.
  • the terminal device determines the resource location of the additional reference signal by configuring the second transmission parameter of the additional reference signal.
  • the terminal device can determine whether there are additional reference signal transmissions in successive X consecutive paging cycles by receiving a wake-up signal or paging DCI, that is, the network instructs the terminal device to follow X paging cycles through the wake-up signal or paging DCI Whether there is additional reference signal transmission (it is assumed that the indication is an additional reference signal trigger indication, 1 bit).
  • the terminal device first determines whether there is additional reference signal transmission in the subsequent X paging cycles according to the wake-up signal or the additional reference signal trigger indication in the paging DCI, and if so, determines which set of additional reference signals to use according to the above transmission method.
  • the transmission parameter configuration is used to determine the resource location of the additional reference signal.
  • the method for transmitting reference signals in wireless communication can provide a stable and effective transmission mechanism for additional reference signals.
  • a terminal device needs to monitor PO in at least one subsequent paging cycle, it can be determined by configuring a first transmission parameter.
  • the resource location of the additional reference signal when the terminal device does not need to monitor the PO in at least one subsequent paging cycle, the resource location of the additional reference signal is determined through the second transmission parameter configuration, so as to save the additional reference signal resource overhead on the basis of, The power consumption of the terminal device is further effectively saved, thereby improving the user experience.
  • this embodiment provides a terminal device, including: an indication information receiving module, configured to obtain indication information transmitted by the network; a monitoring PO judgment module, configured to judge whether it is necessary to Monitor the PO in at least one subsequent paging cycle; the first location determining module is configured to, in response to the need to monitor the PO, determine the additional reference signal in the at least one paging cycle through the association relationship between the additional reference signal and the PO location. The resource location of the reference signal; the second location determination module is configured to, in response to the need to monitor the PO, determine the resource of the additional reference signal through the association relationship between the additional reference signal and the SSB location in the at least one paging cycle Location.
  • This embodiment also provides a network terminal device, including an indication information generation module; the indication information generation module is configured to: generate indication information for network transmission and send the indication information to the above-mentioned terminal device, so that all The terminal device judges, according to the indication information, whether it needs to monitor the PO in at least one subsequent paging cycle, and if so, determines the additional reference signal through the association between the additional reference signal and the PO position in the at least one paging cycle. If not, the resource location of the additional reference signal is determined by the association relationship between the additional reference signal and the SSB location within the at least one paging cycle.
  • the terminal device is an NR device
  • the additional reference signal is TRS or CSI-RS, but it is not limited to this, and can be selected and adjusted according to actual needs.
  • a stable and effective transmission mechanism for additional reference signals can be provided, and the terminal equipment needs to monitor PO in at least one subsequent paging cycle and does not need to monitor PO in at least one subsequent paging cycle. , respectively determine the transmission mode, thereby further effectively saving the power consumption of the terminal device on the basis of saving the additional reference signal resource overhead, thereby improving the user experience.
  • this embodiment provides a transmission system for a reference signal in wireless communication, including a network end device 1 and a terminal device 2 , and the transmission system uses the same method as in Embodiment 2 above.
  • the transmission method of reference signal in wireless communication is not limited to Embodiment 4
  • the network terminal device 1 includes an indication information generating module 11
  • the terminal device 2 includes an indication information receiving module 21 , a monitoring PO judgment module 22 , a first location determination module 23 and a second location determination module 24 .
  • the indication information generating module 11 is configured to generate indication information transmitted by the network and send the indication information to the terminal device 2 .
  • the indication information receiving module 21 is configured to obtain indication information of network transmission from the network end device 1 by receiving a wake-up signal or Paging DCI.
  • the monitoring PO judging module 22 is configured to judge whether the PO needs to be monitored in at least one subsequent paging cycle according to the indication information, and if so, call the first location determining module 23 , and if not, call the second location determining module 24 .
  • the first location determination module 23 is configured to, in response to the need to monitor the PO in the subsequent at least one paging cycle, determine the resource location of the additional reference signal through the PO location and its corresponding first offset, where the first offset is The terminal device obtains the offset between the additional reference signal and the PO in advance through a high-level instruction.
  • the first position determination module 23 is further configured to, in response to the time domain distance between the SSB closest to the PO before the PO and the PO is greater than or equal to a preset threshold, through the PO The position and its corresponding first offset determine the resource position of the additional reference signal.
  • the second location determining module 24 is configured to: in response to the need to monitor the PO in the subsequent at least one paging cycle, determine the resource location of the additional reference signal by using the SSB location and the corresponding second offset,
  • the second offset is an offset between an additional reference signal pre-obtained by the terminal device through a high-level instruction and an SSB located before the PO and closest to the PO.
  • the high-level instruction includes a system broadcast message or RRC.
  • the transmission system for reference signals in wireless communication can provide a stable and effective transmission mechanism for additional reference signals.
  • the first offset is used to determine the resource location of the additional reference signal.
  • the additional reference is determined by the location of the SSB before the PO and closest to the PO and the corresponding second offset.
  • the resource location of the signal can further effectively save the power consumption of the terminal device on the basis of saving the additional reference signal resource overhead, thereby improving the user experience.
  • this embodiment provides a transmission system for a reference signal in wireless communication, including a network terminal device and a terminal device.
  • the transmission method of the reference signal is not limited to Wi-Fi, Wi-Fi, Wi-Fi, Wi-Fi, Wi-Fi, Wi-Fi, Wi-Fi
  • the network end device includes an indication information generating module
  • the terminal device includes an indication information receiving module, a monitoring PO judgment module, a first position determination module and a second position determination module.
  • the indication information generating module is configured to generate indication information transmitted by the network and send the indication information to the terminal device.
  • the network end device is further configured to configure the first transmission parameter configuration and the second transmission parameter configuration of the additional reference signal, and the position of the corresponding additional reference signal under the first transmission parameter configuration is associated with the PO position, and the second transmission parameter configuration corresponds to the PO position.
  • the location of the corresponding additional reference signal under the transmission parameter configuration is associated with the SSB location.
  • the transmission parameter configuration includes the start position and period of the additional reference signal.
  • the indication information receiving module is configured to obtain indication information of network transmission from the network end device by receiving a wake-up signal or Paging DCI.
  • the terminal device is further configured to obtain the first transmission parameter configuration and the second transmission parameter configuration in advance through a high-level instruction.
  • the high-level instruction includes a system broadcast message or RRC.
  • the monitoring PO judgment module is configured to judge whether it is necessary to monitor PO in at least one subsequent paging cycle according to the indication information, if yes, call the first location determination module, if not, call the second location determination module .
  • the first location determination module is configured to select a first transmission parameter configuration in response to the need to monitor the PO in at least one subsequent paging cycle, and configure it according to the first transmission parameter in the subsequent at least one paging cycle
  • the resource location of the additional reference signal is determined.
  • the first position determination module is further configured to respond that the time domain distance between the SSB that is closest to the PO before the PO and the PO is greater than or equal to a preset threshold, according to The first transmission parameter configuration determines the resource location of the additional reference signal.
  • the second location determining module is further configured to select a second transmission parameter configuration in response to not needing to monitor the PO in the subsequent at least one paging cycle, and in the subsequent at least one paging cycle, according to the second transmission parameter
  • the configuration determines the resource location of the additional reference signal.
  • the transmission system for reference signals in wireless communication provided by this embodiment can provide a stable and effective transmission mechanism for additional reference signals.
  • the resource location of the additional reference signal is determined by the first transmission parameter configuration of Therefore, on the basis of saving additional reference signal resource overhead, the power consumption of the terminal device is further effectively saved, thereby improving the user experience.
  • FIG. 10 is a schematic structural diagram of an electronic device provided according to this embodiment.
  • the electronic device includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the program, the method for transmitting a wireless communication reference signal in the above embodiment is implemented.
  • the electronic device 30 shown in FIG. 10 is only an example, and should not impose any limitation on the function and scope of use of the embodiments of the present invention.
  • the electronic device 30 may take the form of a general-purpose computing device, for example, it may be a server device.
  • the components of the electronic device 30 may include, but are not limited to, the above-mentioned at least one processor 31, the above-mentioned at least one memory 32, and a bus 33 connecting different system components (including the memory 32 and the processor 31).
  • the bus 33 includes a data bus, an address bus and a control bus.
  • Memory 32 may include volatile memory, such as random access memory (RAM) 321 and/or cache memory 322 , and may further include read only memory (ROM) 323 .
  • RAM random access memory
  • ROM read only memory
  • the memory 32 may also include a program/utility 325 having a set (at least one) of program modules 324 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, which An implementation of a network environment may be included in each or some combination of the examples.
  • the processor 31 executes various functional applications and data processing by running the computer program stored in the memory 32, such as the transmission method of the wireless communication reference signal in the above embodiments of the present invention.
  • the electronic device 30 may also communicate with one or more external devices 34 (eg, keyboards, pointing devices, etc.). Such communication may take place through input/output (I/O) interface 35 .
  • the model-generating device 30 may also communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN), and/or a public network such as the Internet) through a network adapter 36 . As shown in FIG. 10 , the network adapter 36 communicates with other modules of the model generation device 30 via the bus 33 .
  • networks eg, a local area network (LAN), a wide area network (WAN), and/or a public network such as the Internet
  • model-generated device 30 may be used in conjunction with the model-generated device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk) array) systems, tape drives, and data backup storage systems.
  • This embodiment also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps in the method for transmitting a wireless communication reference signal in the above embodiment.
  • the readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any of the above suitable combination.
  • the present invention can also be implemented in the form of a program product, which includes program codes.
  • the program product runs on a terminal device, the program code is used to cause the terminal device to execute the wireless Steps in a method of transmitting a communication reference signal.
  • the program code for executing the present invention can be written in any combination of one or more programming languages, and the program code can be completely executed on the user equipment, partially executed on the user equipment, as an independent software
  • the package executes, partly on the user device, partly on the remote device, or entirely on the remote device.

Abstract

Sont divulgués un procédé d'émission d'un signal de référence de communication sans fil, un système, un dispositif de réseau et un dispositif terminal. Le procédé d'émission applicable à un dispositif terminal comprend les étapes consistant à : acquérir, par le dispositif terminal, des informations d'indication transmises sur un réseau ; déterminer, par le dispositif de terminal et selon les informations d'indication, s'il faut surveiller une PO lors d'au moins un cycle suivant de radiomessagerie ; si tel est le cas, déterminer un emplacement de ressource d'un signal supplémentaire de référence lors d'au moins un cycle de radiomessagerie au moyen d'une relation d'association entre le signal supplémentaire de référence et un emplacement de la PO ; et sinon, déterminer l'emplacement de ressource du signal supplémentaire de référence lors d'au moins un cycle de radiomessagerie au moyen d'une relation d'association entre le signal supplémentaire de référence et l'emplacement d'un SSB. La présente invention peut fournir un mécanisme stable et efficace d'émission d'un signal supplémentaire de référence. Des procédés d'émission sont déterminés selon que le dispositif terminal doit ou non surveiller une PO suivante, si bien que la consommation d'énergie du dispositif terminal peut être efficacement réduite par réduction des surcharges supplémentaires de ressources de signaux de référence, ce qui permet d'améliorer l'expérience d'utilisateur.
PCT/CN2021/114666 2020-08-28 2021-08-26 Procédé d'émission de signal de référence de communication sans fil, système, dispositif de réseau et dispositif terminal WO2022042625A1 (fr)

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