WO2021155742A1 - 信号传输方法及装置 - Google Patents

信号传输方法及装置 Download PDF

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Publication number
WO2021155742A1
WO2021155742A1 PCT/CN2021/072919 CN2021072919W WO2021155742A1 WO 2021155742 A1 WO2021155742 A1 WO 2021155742A1 CN 2021072919 W CN2021072919 W CN 2021072919W WO 2021155742 A1 WO2021155742 A1 WO 2021155742A1
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WIPO (PCT)
Prior art keywords
terminal
transmission resource
state
rrc
reference signal
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PCT/CN2021/072919
Other languages
English (en)
French (fr)
Inventor
王加庆
杨美英
罗晨
孙韶辉
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP21750946.2A priority Critical patent/EP4102756A4/en
Priority to US17/797,713 priority patent/US20230083399A1/en
Publication of WO2021155742A1 publication Critical patent/WO2021155742A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0241Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where no transmission is received, e.g. out of range of the transmitter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communication technology, and in particular to signal transmission methods and devices.
  • the current working state of the terminal (User Equipment, UE) is divided into three types: idle state (RRC_IDLE), inactive state (RRC_Inactive) and connected state (RRC_Connected).
  • RRC_IDLE idle state
  • RRC_Inactive inactive state
  • RRC_Connected connected state
  • PDCCH physical downlink control channels
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the UE In the RRC_Connected state, the UE needs to continuously monitor the downlink control channel PDCCH (such as C-RNTI scrambling) to learn the transmission information of the downlink PDSCH.
  • PDCCH such as C-RNTI scrambling
  • the packet-based data flow is usually bursty. There is data transmission for a period of time, but there is no data transmission for a long period of time. Continuous monitoring of the PDCCH will inevitably lead to rapid power consumption of the UE. Therefore, when there is no data transmission, the power consumption can be reduced by stopping receiving the PDCCH (the blind PDCCH detection will be stopped at this time). Therefore, the design of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) is designed to save power through the Discontinuous Reception (DRX) mechanism, as shown in Figure 1.
  • DRX Discontinuous Reception
  • the UE In the DRX cycle, the UE only monitors the PDCCH during the reception on period (On duration), and during the discontinuous reception time (Opportunity for DRX), that is, the DRX deactivation period (DRX OFF), the UE does not receive the PDCCH to reduce power consumption , That is, go to sleep.
  • NR Rel-16 introduces a group common PDCCH as an energy-saving signal before the DRX activation period (DRX ON).
  • the PDCCH is transmitted in the DRX OFF and uses the energy-saving wireless network temporary identification (Power saving RNTI, PS-RNTI) With scrambling, only when the energy-saving signal carries the UE wake-up indication, the UE will wake up the receiver in the subsequent DRX cycle, otherwise the Rel-16 UE will continue to sleep.
  • Power saving RNTI Power saving RNTI
  • the base station does not know which base station the UE resides in.
  • TA tracking area
  • RAN Radio Access Network
  • RAN-based Notification Area Terminals (UEs) in RNA
  • base stations or core networks will trigger paging signals to wake up UEs to enter the RRC_Connected state (mode) to receive data, or to receive SI-RNTI (System information-RNTI) scrambled system information updates .
  • SI-RNTI System information-RNTI
  • RS reference signals
  • the embodiments of the present application provide a signal transmission method and device, which are used to implement RS signal transmission for a UE in an NR system RRC_IDLE or RRC_Inactive mode, so as to improve the reception performance and power saving performance of the UE.
  • a signal transmission method provided in an embodiment of the present application includes:
  • a reference signal is sent to a terminal in an idle state, an inactive state, or an inactive period in a connected state.
  • the transmission resource is configured for the terminal through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • configure the transmission resource for the terminal when the terminal is in the connected state or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • Configuration information of the transmission resource
  • the same transmission resources are configured for multiple preset cells.
  • the method further includes: receiving a reference signal transmission resource request sent by the connected terminal, where the transmission resource is configured for the terminal according to the request.
  • a preset rule is determined through negotiation with the terminal in advance, and when the preset rule is satisfied, the reference signal is sent to the terminal on the transmission resource.
  • the preset rule includes:
  • the base station When the base station sends a signal on a periodic sending opportunity, it sends a reference signal corresponding to the signal.
  • the transmission resource is configured for the terminal through dedicated RRC signaling configured for the terminal, and the RRC signaling takes effect when the terminal is in an idle state or an inactive state.
  • the transmission resource of the reference signal has a preset relationship with the signal transmission resource of the terminal in an idle state or an inactive state.
  • the transmission resource is included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP, or is not included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP.
  • the transmission resource when the transmission resource is not included in the frequency domain resources of CORESET#0 or the initial broadband part of the initial BWP, the transmission resource satisfies one or a combination of the following conditions:
  • the frequency deviation between the transmission resource and CORESET#0 or initial BWP is less than a preset value
  • At least one resource unit RE overlaps between the transmission resource and CORESET#0 or initial BWP;
  • the transmission resource is located on a dedicated BWP configured by the base station for the terminal in the connected state;
  • the transmission resource is associated with the synchronization signal block SSB of the terminal in the idle state or the inactive state.
  • the method further includes:
  • the terminal When the terminal is in the connected state through explicit signaling or implicit signaling, the terminal is notified whether the terminal is configured with reference signal transmission resources in an idle state or an inactive state.
  • a signal transmission method provided in an embodiment of the present application includes:
  • the reference signal is received through the transmission resource.
  • the transmission resource configured for the terminal on the network side is learned through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • a preset rule is determined through negotiation with the network side in advance, and when the preset rule is satisfied, the reference signal is received on the transmission resource.
  • the signal detection in the idle state or the inactive state is further performed, otherwise the subsequent signal detection in the idle state or the inactive state associated with the transmission resource is abandoned.
  • a signal transmission device provided in an embodiment of the present application includes:
  • Memory used to store program instructions
  • the processor is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • a reference signal is sent to a terminal in an idle state, an inactive state, or an inactive period in a connected state.
  • the transmission resource is configured for the terminal through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • configure the transmission resource for the terminal or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • Configuration information of the transmission resource when the terminal is in the connected state, configure the transmission resource for the terminal, or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • the same transmission resources are configured for multiple preset cells.
  • the processor is further configured to receive a reference signal transmission resource request sent by the connected terminal, where the transmission resource is configured for the terminal according to the request.
  • a preset rule is determined through negotiation with the terminal in advance, and when the preset rule is satisfied, the reference signal is sent to the terminal on the transmission resource.
  • the preset rule includes:
  • the base station When the base station sends a signal on a periodic sending opportunity, it sends a reference signal corresponding to the signal.
  • the transmission resource is configured for the terminal through dedicated RRC signaling configured for the terminal, and the RRC signaling takes effect when the terminal is in an idle state or an inactive state.
  • the transmission resource of the reference signal has a preset relationship with the signal transmission resource of the terminal in an idle state or an inactive state.
  • the transmission resource is included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP, or is not included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP.
  • the transmission resource when the transmission resource is not included in the frequency domain resources of CORESET#0 or the initial broadband part of the initial BWP, the transmission resource satisfies one or a combination of the following conditions:
  • the frequency deviation between the transmission resource and CORESET#0 or initial BWP is less than a preset value
  • At least one resource unit RE overlaps between the transmission resource and CORESET#0 or initial BWP;
  • the transmission resource is located on a dedicated BWP configured by the base station for the terminal in the connected state;
  • the transmission resource is associated with the synchronization signal block SSB of the terminal in the idle state or the inactive state.
  • the processor is further configured to:
  • the terminal When the terminal is in the connected state through explicit signaling or implicit signaling, the terminal is notified whether the terminal is configured with reference signal transmission resources in an idle state or an inactive state.
  • a signal transmission device provided in an embodiment of the present application includes:
  • Memory used to store program instructions
  • the processor is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • the reference signal is received through the transmission resource.
  • the transmission resource configured for the terminal on the network side is learned through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • a preset rule is determined through negotiation with the network side in advance, and when the preset rule is satisfied, the reference signal is received on the transmission resource.
  • the signal detection in the idle state or the inactive state is further performed, otherwise the subsequent signal detection in the idle state or the inactive state associated with the transmission resource is abandoned.
  • another signal transmission device provided by an embodiment of the present application includes:
  • a determining unit configured to determine a reference signal transmission resource configured for the terminal
  • the sending unit is used to send a reference signal to a terminal in an idle state, an inactive state, or an inactive period in a connected state through the transmission resource.
  • another signal transmission device provided by an embodiment of the present application includes:
  • the determining unit is used to determine the reference signal transmission resources in the idle state or the inactive state or the inactive state of the connected state configured for the terminal on the network side;
  • the receiving unit is configured to receive a reference signal through the transmission resource when the terminal is in an idle state or an inactive state or an inactive period in a connected state.
  • Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used to store program instructions, and the processor is used to call the program instructions stored in the memory, according to the obtained program Perform any of the above methods.
  • Another embodiment of the present application provides a computer storage medium, the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute any of the foregoing methods.
  • Figure 1 is a schematic diagram of the DRX cycle
  • FIG. 2 is a schematic flowchart of a signal transmission method on the network side according to an embodiment of this application;
  • FIG. 3 is a schematic flowchart of a signal transmission method on the terminal side according to an embodiment of the application
  • FIG. 4 is a schematic structural diagram of a signal transmission device on the network side according to an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of a signal transmission device on the terminal side according to an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of another signal transmission device on the network side according to an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of another signal transmission device on the terminal side according to an embodiment of the application.
  • RRC_IDLE or RRC_Inactive mode power saving and receiving robustness optimization are also very important.
  • NR terminals smart wearable devices, or sensor devices
  • they mainly work in RRC_IDLE or RRC_Inactive mode
  • Power saving has stricter requirements than ordinary NR terminals.
  • the UE will receive paging or system information.
  • the UE needs to perform a cell search process, receive a synchronization signal block (Synchronization Signal Block, SSB), and system information, and reside in a certain cell.
  • SSB Synchronation Signal Block
  • the base station In order to meet the reception quality requirements, in some cases, such as activation time ( Under Active Time), the base station also configures various reference signals (Reference Signal, RS) for the UE.
  • the RS may include a channel state information reference signal (CSI-RS) used for channel tracking (the NR standard includes at least a reference signal for tracking CSI-RS signal (CSI-RS for tracking) and/or Phase-tracking reference signal (PT-RS)), CSI-RS for mobility measurement (referred to as CSI-RS in NR) mobility), CSI-RS used for channel measurement and reporting.
  • CSI-RS channel state information reference signal
  • CSI-RS channel state information reference signal
  • CSI-RS Phase-tracking reference signal
  • CSI-RS in NR mobility measurement
  • CSI-RS used for channel measurement and reporting.
  • the base station does not know which cell the UE resides in, and cannot configure the above RS for the UE; for a UE in a connected state (RRC-connected), when discontinuous reception (DRX) is configured
  • DRX discontinuous reception
  • the NR standard stipulates that the UE can measure CSI-RS for mobility only within the Active Time (DRX ON cycle); the CSI-RS used for CSI measurement reporting, the NR standard stipulates that the latest CSI-RS measurement opportunity must CSI measurement results are not allowed to be reported in Active Time and DRX OFF;
  • CSI for tracking means whether the tracking reference signal (Tracking Refernece Signal, TRS) is received in DRX OFF depends on the implementation of the UE, and the base station can configure the periodicity for the UE.
  • TRS Tracking Refernece Signal
  • the base station may also send the TRS. Whether the UE receives the TRS for fine synchronization depends on the UE's own implementation algorithm. For a UE in RRC_IDLE or RRC_Inactive mode, the base station cannot notify the UE through signaling that the RS is used for channel tracking and mobility measurement and its CSI report (report), and the UE cannot use the above RS to improve system performance and reduce power consumption.
  • the embodiments of the present application provide a signal transmission method and device, which are used to implement RS signal transmission for a UE in an NR system RRC_IDLE or RRC_Inactive mode, so as to improve the reception performance and power saving performance of the UE.
  • the method and the device are based on the same application concept. Since the method and the device have similar principles for solving the problem, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the applicable system can be the global system of mobile communication (GSM) system, code division multiple access (CDMA) system, and wideband code division multiple access (WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), general Mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G system, 5G NR system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • General packet Wireless service general packet radio service
  • GPRS general packet Radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS general Mobile system
  • WiMAX worldwide interoperability for microwave access
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal device may be different.
  • the terminal device may be called a user equipment (UE).
  • the wireless terminal device can communicate with one or more core networks via the RAN.
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal device, for example, it can be a portable , Pocket, handheld, computer built-in or vehicle-mounted mobile devices that exchange language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, and access point , Remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), user device (user device), which are not limited in the embodiments of the present application.
  • the network device involved in the embodiment of the present application may be a base station, and the base station may include multiple cells.
  • a base station may also be called an access point, or may refer to a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or other names.
  • the network device can be used to convert the received air frame and the Internet protocol (IP) packet to each other, as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment involved in the embodiments of this application may be a network equipment (base transmitter station, BTS) in the global system for mobile communications (GSM) or code division multiple access (CDMA). ), it can also be a network device (NodeB) in wide-band code division multiple access (WCDMA), or an evolved network device in a long-term evolution (LTE) system (evolutional node B, eNB or e-NodeB), 5G base station in the 5G network architecture (next generation system), or home evolved node B (HeNB), relay node (relay node), home base station ( Femto), pico base station (pico), etc., are not limited in the embodiment of the present application.
  • BTS network equipment
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • NodeB wide-band code division multiple access
  • LTE long-term evolution
  • 5G base station in the 5G network architecture next generation system
  • HeNB home evolved node B
  • relay node relay node
  • Femto
  • the network configures the terminal in RRC_IDLE or RRC_Inactive in a single cell (or base station) or in multiple cells (or multiple base stations) through a standard agreed method and/or high-level signaling and/or dynamic signaling.
  • the DRX cycle (cycle) will be configured in RRC-connected mode.
  • the DRX cycle is divided into two parts: the active period (DRX ON) and the inactive period (DRX OFF).
  • DRX ON the UE needs to detect the PDCCH.
  • the OFF the UE does not detect that the PDCCH is in the sleep state.
  • the embodiments of this application can configure RS transmission resources for terminals in the RRC_IDLE state, configure RS transmission resources for terminals in the RRC_Inactive state, or configure RS transmission for terminals in the RRC-connected state during the DRX OFF period. resource.
  • the base station configures RS transmission resources for the UE in the connected state, or uses the PDCCH carried by the control resource set (CORESET#0) or search space (search space#0) to schedule the RS transmission resource configuration information in RRC_IDLE or RRC_Inactive mode. .
  • the reference signal is used for at least one of functions such as channel tracking, link maintenance, CSI measurement, beam management, and radio resource management (RRM) measurement.
  • functions such as channel tracking, link maintenance, CSI measurement, beam management, and radio resource management (RRM) measurement.
  • RRM radio resource management
  • the high-level signaling and/or dynamic signaling may be applicable to terminals in the RRC-idle or inactive or RRC-connected state during the DRX OFF period.
  • the transmission resource configuration information includes at least one of the following information: frequency domain resources for transmitting the RS, time domain transmission resources or opportunities (time metric values) for transmitting signals or channels when the terminal is in RRC_IDLE or RRC_Inactive mode.
  • predetermined multiple cells or base stations
  • groups configure the same reference signal transmission resources for each group of cells (or base stations), and configure no reference signal transmission resources outside the predetermined multiple cells
  • the UE does not want to receive the RS signal on the transmission resources of the reference signal configured outside the predetermined multiple cells.
  • the predetermined multiple cells may be determined according to actual needs, and the embodiment of the present application does not limit it.
  • the base station informs the terminal whether to configure RS transmission for the terminal in RRC_IDLE or RRC_Inactive mode through Radio Resource Control (RRC) signaling or Media Access Control Unit (MAC CE) or physical layer explicit signaling resource.
  • RRC Radio Resource Control
  • MAC CE Media Access Control Unit
  • RRC signaling or media access control unit (MAC CE) or physical layer explicit signaling does not configure RS transmission resources for terminals in RRC_IDLE or RRC_Inactive mode
  • the default processing method is adopted, for example, the UE is not allowed to configure resources Receive RS or allow UE to receive RS on configured resources.
  • the terminal According to the RS transmission resources configured by the base station, the terminal performs RS reception in RRC_IDLE or RRC_Inactive mode as needed.
  • the base station and the terminal define the actual RS transmission opportunity through preset rules, the UE only receives RS signals on the RS transmission opportunities meeting the preset rules, and the base station only transmits RS signals on the RS transmission opportunities meeting the preset rules .
  • the preset rules can be determined according to actual needs, and the embodiments of the present application do not limit them.
  • the base station If there is no SSB within the preset distance from the signal/channel sent in RRC_IDLE or RRC_Inactive mode, the base station sends the RS signal on the preset resource of the RS.
  • the PSS/SSS contained in the SSB can be used for synchronization.
  • the RS transmission resource is on the fixed orthogonal frequency division multiplexing (OFDM) symbol before the signal to be sent in the idle
  • OFDM orthogonal frequency division multiplexing
  • the signal paging is 2 OFDM symbols, and it does not make much sense to add an additional RS, and it may collide with the SSB, so the RS can not be sent on the resource; of course, for standardization, it can also be fixed in the time domain of the distance paging.
  • the RS is sent at the distance from the position, regardless of whether there is an SSB.
  • the base station configures, for the UE in the connected state, the transmission resource that can receive the RS in the idle state, which is the RS resource that the UE can receive in the connected state.
  • the network side such as a base station, configures RRC signaling for the UE.
  • the RRC signaling takes effect when the terminal is in idle and/or inactive mode.
  • the RRC signaling function is used to configure the UE's RS in RRC_IDLE or RRC_Inactive mode.
  • Transmission-related configuration information the configuration information may include, for example, resource configuration information and/or whether the UE has configured RS transmission resources in RRC_IDLE or RRC_Inactive mode.
  • the transmission resource that the base station configures for the UE in the connected state and can receive the RS in the idle state includes, for example, one or a combination of the following steps:
  • Step 1 The UE sends RS transmission resource request information to the base station in the connected state, and the RS transmission resource is the transmission resource that the UE in the RRC_IDLE or RRC_Inactive state needs to receive the RS;
  • Step 2 The base station configures whether the UE receives RS in the RRC_IDLE or RRC_Inactive state; if the base station is configured for the UE to receive the RS or it can receive the RS in the RRC_IDLE or RRC_Inactive state or the base station configures the RS transmission resources for the UE, the UE receives the base station in the current camping cell The RS sent in the configured RS transmission resource; if the base station does not configure the RS transmission resource in the RRC_IDLE or RRC_Inactive state for the UE, the UE does not receive the RS sent by the base station.
  • Step 3 If the UE moves out of the current cell in the RRC_IDLE or RRC_Inactive state and camps in a new cell, the UE re-enters the connected state and sends RS transmission resource request information. Then, perform the same steps as the above step two.
  • the base station configures the effective period of the UE in the RRC_IDLE or RRC_Inactive state, or aperiodic RS transmission resources through high-layer signaling or physical layer signaling.
  • the RRC signaling configured by the current standard is notified by the base station to the UE, it is all effective under RRC-connected.
  • the content of the signaling configured under RRC-connected cannot be applied to RRC- idle/inactive mode, because the base station does not know where the UE is in the idle state when there is no service.
  • the resources configured by the RRC signaling configuration of the original cell cannot be used for the idle mode function (idle mode); if RRC is desired
  • the configured RS resource can be used in idle mode, and dedicated signaling needs to be configured, which can be used in idle mode or both in idle mode and RRC-connected mode.
  • the so-called effective period means that the configuration in the idle state under RRC-connected mentioned above can take effect.
  • only the transmission opportunity is periodic, but the actual transmission is aperiodic. For example, paging for the UE sometimes only exists in a few paging occasions (paging occasion), and the RS is only sent before the actual paging occasion is sent.
  • the base station determines the RS transmission opportunity (time-frequency resource) according to a preset rule, and transmits the RS signal at the RS transmission position (time-frequency position) that meets the preset rule, and the UE only transmits when there is an RS that meets the preset rule.
  • the RS signal is received on the resource.
  • the preset rule is a pre-appointed method or RRC signaling configuration method between the base station and the terminal, and the specific rule may be determined according to actual needs, which is not limited in the embodiment of the present application.
  • the preset rules include, for example:
  • the base station When the base station sends a signal on a periodic sending opportunity, it sends a reference signal corresponding to the signal.
  • the UE side can first receive the corresponding RS signal, and then try to receive the signal/channel sent in the RRC-idle/inactive state;
  • the UE abandons the subsequent signal/channel detection in the RRC-idle/inactive state associated with the transmission resource .
  • RS transmission resources of terminals in RRC_IDLE or RRC_Inactive mode for example, RS resources that can be configured for aperiodic signals/channels, and the RS transmission resources can be related to the resources of signals/channels transmitted by terminals in RRC_IDLE or RRC_Inactive mode in a predetermined manner. United.
  • the base station and the terminal can receive RS signals within a predetermined time window before one or more signals/channels that need to be received in the RRC_IDLE or RRC_Inactive state, and the UE does not want to receive RSs on RS transmission opportunities or resources outside the window;
  • the UE may not want to receive the RS on the RS transmission opportunity. In fact, the base station may not need to send the RS signal on the resources where the UE does not want to receive the RS signal. Thereby reducing overhead.
  • the RS signal of the channel tracking function If the RS signal of the channel tracking function is detected, it will trigger the subsequent execution of the signal/channel detection in the RRC_IDLE or RRC_Inactive state, otherwise the UE will abandon the subsequent signal/channel in the RRC_IDLE or RRC_Inactive state associated with the RS transmission resource. Channel detection opportunity.
  • the base station configures the transmission resource of the reference signal in the RRC idle or inactive mode for the terminal through a pre-appointed manner or semi-static signaling (such as dedicated RRC signaling) or dynamic signaling (such as MAC CE).
  • semi-static signaling such as dedicated RRC signaling
  • dynamic signaling such as MAC CE
  • the transmission resource may be located on a frequency domain resource including Control Resource Set (CORESET) #0, and/or the initial bandwidth part (initial BWP, initial Bandwidth Part); or, the transmission resource may be located on a frequency domain resource that is connected to CORESET #0 and/or initial BWP frequency deviation is less than the frequency domain resource of the preset value.
  • CORESET Control Resource Set
  • initial bandwidth part initial BWP, initial Bandwidth Part
  • the transmission resource of the RS is located in the dedicated BWP configured by the base station for the UE when the UE is in the connected state;
  • the RS transmission resource is associated with the SSB in the idle and/or active mode of the UE;
  • the transmission resource of RS is in frequency, which is within the maximum frequency range formed by SSB and initial BWP.
  • Embodiment 1 The network configures a single cell/base station or multiple cells/ The transmission resource of the reference signal in the RRC_IDLE or RRC_Inactive state in the base station.
  • the transmission resource configuration information may preferably include at least frequency domain resources used for RS transmission, and may also include the RS transmission resource and the signal transmitted in RRC_IDLE or RRC_Inactive mode. Or the time metric value between channels, such as the time offset value between the RS transmission resource and the transmitted signal/channel in RRC_IDLE or RRC_Inactive mode.
  • the base station or the network configures high-level signaling for the UE.
  • the high-level signaling is valid during the DRX OFF period of RRC-idle or inactive or RRC-connected, or the applicable scope of the signaling is RRC-idle or inactive or RRC-connected.
  • the RS signal sent on this resource can be used for functions such as channel tracking, link maintenance, or CSI measurement, beam management, and even RRM measurement.
  • the prior art does not support the DRX OFF duration of the UE in the RRC_IDLE or RRC_Inactive state or the RRC-connected state, that is, the transmission and reception during the inactive period.
  • the base station can use RRC signaling or a standard pre-appointed manner, or MAC CE configures the reference signal transmission resources of one cell or multiple cells for the UE in RRC-connected mode, that is, the UE is in RRC_IDLE or RRC_Inactive.
  • the reference signal transmission resources configured for the UE in the connected state preferably include at least one cell or cell group. For example, consider dividing multiple predetermined cells/base stations into multiple groups, such as TA (Tacking Area) corresponding to the idle state or RNA (RAN-based Notification Area) corresponding to the inactive state.
  • Each cell/base station group is configured with the same reference signal transmission resource.
  • the above-mentioned predefined multiple cells/base stations are only divided into one group, that is, multiple cells/base stations within the reservation range are configured with the same reference signal transmission resource .
  • the base station does not know the location of the UE, and multiple base stations in a better reservation area simultaneously transmit reference signals on the resources configured for the reference signals sent by RRC_IDLE or RRC_Inactive mode.
  • the reference signal is used for at least one of channel tracking, link maintenance, or CSI measurement, beam management, RRM measurement and other functions.
  • the UE may move out of a predetermined multi-cell, in order to reduce overhead, a better network does not send the above-mentioned reference signal on the configured RS resources on other cells outside the predetermined multi-cell.
  • the base station configures RS transmission resources in RRC_IDLE or RRC_Inactive mode.
  • the base station can transmit RRC signaling in RRC_IDLE or RRC_Inactive mode to configure RS transmission resource configuration information.
  • the base station schedules RS transmission resources through the PDCCH carried by CORESET#0 or searchspace#0
  • the PDCCH can be scrambled with SI-RNTI (System Information RNTI) or a new RNTI, such as a newly configured RS-RNTI (Reference signal RNTI) scramble.
  • SI-RNTI System Information RNTI
  • a new RNTI such as a newly configured RS-RNTI (Reference signal RNTI) scramble.
  • the RRM signaling is actually transmitted through system information such as SIB1 resources.
  • the RS configuration resource information is not system information, it can be transmitted through system information resources.
  • RS resource configuration information When the PDCCH for scheduling RS resource configuration information is scrambled with a new RNTI, the DCI format can reuse DCI format0_0/1_0.
  • Embodiment 2 The base station or the network configures whether the terminal needs to receive the RS configured according to RRC signaling in RRC_IDLE or RRC_Inactive mode through explicit signaling or implicit signaling in the connected state, or whether the UE is configured with RRC_IDLE or RRC_Inactive mode.
  • RS transmission resources For example, the base station uses RRC signaling or MAC CE or physical layer explicit signaling to notify the terminal whether it is in the RS transmission resource configured for RRC_IDLE or RRC_Inactive mode. If the signaling is not configured, the default state is used, and the better default state is not.
  • the UE is allowed to receive the corresponding RS on the configured resource/the UE is allowed to receive the corresponding RS on the configured resource.
  • the base station may pre-configure RS resources for the terminal, and the resources are used for RS transmission in RRC_IDLE or RRC_Inactive mode. If the base station is configured to allow the UE to receive the RS on the corresponding resource, for example, a 1-bit indication or a high-level signaling is configured, other methods are not excluded.
  • the UE may be in the center of the cell or the channel conditions are good, or it does not need to receive additional RS after receiving the SSB, but as the UE moves, the UE enters the edge of the cell, and the terminal is in RRC_IDLE or RRC_Inactive mode according to its actual needs. Perform RS reception to meet actual needs such as channel tracking or RRM measurement, CSI measurement, etc.
  • the base station and the terminal pre-appoint the actual RS transmission opportunity through preset rules. For example, if there is no SSB within the preset distance of the signal/channel sent within RRC_IDLE or RRC_Inactive mode, the base station will use the preset resources of the RS.
  • the frequency domain resource of the RS signal and the transmission offset of the time domain relative to the signal/channel sent in RRC_IDLE or RRC_Inactive mode are preferably notified by higher-layer signaling or agreed in advance, and the offset is preferably greater than It is equal to 0, and it is not excluded that it is less than 0, and the UE receives the RS signal on the resource corresponding to the RS. Otherwise, the terminal does not want to receive the corresponding RS signal on the RS transmission opportunity that does not meet the preset rule.
  • the above RS transmission resources may also be periodic RS resources configured by the base station for the UE.
  • the RS resources are configured by the base station for the UE in the connected state and can be used in the connected state.
  • the base station uses the RS resources in the connected state. According to the instructions of the base station, part or all of it can continue to be applied to RRC_IDLE or RRC_Inactive mode.
  • the base station is required to continue to send RS on the designated RS resource in RRC_IDLE or RRC_Inactive mode, and the UE can continue to receive RS signals as needed on the corresponding RS resource in RRC_IDLE or RRC_Inactive mode.
  • the RS configured in RRC-connected in the prior art is invalid in RRC_IDLE or RRC_Inactive mode, the base station does not send it, and the UE will not receive it; in another case, the RS resource may be configured for a group of UEs, for example, it can be used for connection Even if the current UE is in RRC_IDLE or RRC_Inactive mode, other UEs configured with this RS resource are likely to be still in RRC-connected mode. Therefore, when the current UE is in RRC_IDLE or RRC_Inactive mode, the base station may continue to be in the configured RS The RS signal is sent on the resource.
  • the base station configures the UE to receive RS resources configured according to RRC signaling in RRC_IDLE or RRC_Inactive mode, it can continue to use the RS resources, and the UE can receive the RS resources corresponding to the RS resources in RRC_IDLE or RRC_Inactive mode as needed, such as Continue to receive the RS before receiving data or control signaling, or continue to receive the RS during RRM measurement, or other purposes as described above.
  • the base station or the network can configure a dedicated RRC signaling for the UE.
  • the RRC signaling is characterized in that the RRC signaling takes effect in idle and/or inactive mode, and the function is to configure the UE to send RS in RRC_IDLE or RRC_Inactive mode.
  • the configuration information may include, for example, resource configuration information and/or whether the UE is configured with RS resources in RRC_IDLE or RRC_Inactive mode.
  • the function of the RS is the same as the foregoing, and will not be repeated here.
  • the foregoing effective RRC configuration signaling under RRC_IDLE or RRC_Inactive mode may implicitly notify the UE to receive the corresponding RS on the corresponding resource.
  • the base station or base station group configures the transmission resources of the reference signal in the RRC_IDLE or RRC_Inactive state for the UE through RRC signaling, considering that multiple cells/base stations send reference signals in the RRC_IDLE or RRC_Inactive state at the same time will occupy more resources in practice.
  • the base station configures the RS transmission resource configuration information in the RRC_IDLE or RRC_Inactive state for the terminal through the aforementioned high-level signaling.
  • the UE receives the corresponding RS signal in the RRC_IDLE or RRC_Inactive state according to the configuration of the base station in the current cell.
  • the preferred method can support only one base station to send RS signals to the UE. The process is as follows:
  • Step 1 The UE sends RS transmission resource request information to the base station in the connected state, and the RS resource is the resource that the UE needs to receive the RS in the RRC_IDLE or RRC_Inactive state;
  • Step 2 The base station configures whether the UE receives the corresponding RS in the RRC_IDLE or RRC_Inactive state; if the base station is configured for the UE or can receive the corresponding RS in the RRC_IDLE or RRC_Inactive state or the base station configures the RS transmission resources for the UE, the UE is in the cell where the UE currently resides Receive the RS configured by the base station in the corresponding resource; if the base station does not configure the corresponding RS transmission resource in the RRC_IDLE or RRC_Inactive state for the UE, the UE does not receive the corresponding RS.
  • the UE If the UE moves out of the current cell in the RRC_IDLE or RRC_Inactive state and camps in a new cell, the UE re-enters the connected state and sends RS resource request information. Then proceed to step two above.
  • the base station configures the periodic or aperiodic RS transmission resources that the UE takes effect in the RRC_IDLE or RRC_Inactive state through high-level signaling or physical layer signaling.
  • the base station uses RRC signaling to configure the UE with periodic RS transmission opportunities that take effect in RRC_IDLE or RRC_Inactive mode when in the connected state; or the base station and the terminal configure part of the RS transmission configuration information in a pre-appointed manner, and use RRC signaling to configure the other part RS sends configuration information; or uses RRC signaling to configure a part of RS to send configuration information, and uses MAC CE to dynamically configure another part of RS transmission resource configuration information.
  • the above RS transmission resource takes effect when the UE is in the RRC_IDLE or RRC_Inactive state.
  • the base station sends RS signals in one or more predetermined cells at the same time, which will cause large system overhead, and it is easy to be always on (always on). Signal.
  • a preferred base station determines the RS transmission opportunity according to a preset rule, and transmits the RS signal at the RS transmission position that meets the requirements, and the UE only receives the RS signal on the corresponding transmission resource where the RS exists.
  • the preset rule for example, may be that the RS signal transmission opportunity may be associated with the signal/channel transmitted in RRC_IDLE or RRC_Inactive mode.
  • the time domain transmission opportunity of a better RS is always located at the agreed position before the system information or with The sending position of the system information is partially overlapped. Because other system information other than the MIB (Master information block) carried by the SSB will only be received after the system message in the paging is received, the system information is not an always on signal.
  • the associated RS is not an always on signal; another example is the message 2/message 4 in the physical random access channel (Physical Random Access Channel, PRACH) process is not an always on signal. If the RS transmission opportunity is associated with it, the same It can also prevent the RS signal from being an always on signal, and can effectively improve the system performance.
  • MIB Master information block
  • a simpler method is to configure the corresponding RS resource for the aperiodic signal/channel for the transmission opportunity in RRC_IDLE or RRC_Inactive mode, and the RS transmission opportunity is in accordance with the predetermined method and the signal/channel opportunity transmitted in RRC_IDLE or RRC_Inactive mode. Associated.
  • the transmission opportunities of signals transmitted in RRC_IDLE or RRC_Inactive mode are often periodic.
  • the receiver of the paging signal will be periodic in RRC_IDLE or RRC_Inactive mode.
  • Another example is the energy-saving signal used to wake up the UE to receive paging, because the detection opportunity of paging is periodic. Yes, so the detection opportunities of energy-saving signals are also periodic or the signals used for RMM measurement are often periodic signals. For such signals/channels with periodic transmission opportunities, configuring an RS signal for each transmission opportunity will inevitably lead to an always-on signal.
  • the RS transmission resource corresponding to a signal/channel with a periodic transmission opportunity can also be the same as the signal/channel received by the UE periodically in the RRC_IDLE or RRC_Inactive state.
  • the base station can use the method agreed by the base station or the terminal or the method of RRC signaling configuration to correlate the paging frame (PF) or paging occasion (PO) sent by the paging
  • the transmission resource for sending the RS signal is configured at the location. More specifically, there is a common RS signal transmission resource for each PF or several PFs.
  • one RS resource can be associated with the signal/channel transmission opportunities of one or more UEs in the RRC_IDLE or RRC_Inactive state, so as to reduce the RS overhead as much as possible.
  • the association between the receiver of the periodic signal/channel corresponding to the UE and the RS resource, that is, the specific time-frequency position of the RS can be determined according to a predetermined rule, for example, the aforementioned base station and terminal pre-standard agreed method or RRC signaling configuration, or MAC CE signaling configuration. More specifically, the base station can configure RS signals within a predetermined time window before one or more signals/channels that the terminal needs to receive in the RRC_IDLE or RRC_Inactive state.
  • the UE does not want to receive the corresponding RS.
  • the UE may not want to correspond to the RS.
  • the RS transmission opportunity receives the RS.
  • the base station does not need to send the RS signal on the resource where the UE does not want to receive the RS signal, thereby reducing the overhead.
  • the transmission opportunity in the RRC_IDLE or RRC_Inactive state is a periodic signal/channel, and the corresponding RS transmission resource is configured by higher-layer signaling.
  • the transmission opportunity is associated with the signal/channel that the UE needs to receive periodically in the RRC_IDLE or RRC_Inactive state.
  • the base station sends the RS signal only when the aforementioned signal/channel is sent on the periodic sending opportunity.
  • the UE side can first receive the corresponding RS signal, and then try to receive whether there is a signal/channel sent in the RRC_IDLE or RRC_Inactive state; further, another processing method: a better UE side, if it has the channel tracking function in the RRC_IDLE or RRC_Inactive mode If the RS signal is detected, it will trigger the subsequent execution of the signal/channel in the RRC_IDLE or RRC_Inactive state, such as paging detection or energy-saving signal detection, otherwise the UE will give up the subsequent signal/channel in the RRC_IDLE or RRC_Inactive state associated with the RS resource. Channel such as paging detection opportunity.
  • the transmission opportunity is a periodic signal/channel (such as a paging signal or an energy-saving signal corresponding to a paging signal).
  • a periodic signal/channel such as a paging signal or an energy-saving signal corresponding to a paging signal.
  • the RS resource It is periodic; if there is no paging transmission on the corresponding paging transmission opportunity of some RS resources, the base station may not send RS on these RS transmission resources. In this way, the actual transmission resource of the RS is aperiodic.
  • the base station configures periodic RS transmission opportunities for the terminal. Only when preset rules are met, the base station will actually send temporary RS signals on these transmission opportunities according to the RS transmission resources configured by high-level signaling.
  • the RS signals may be UE-specific. It may be applicable to a group of UEs, that is, a group-specific UE, or may be applicable to all UEs in a cell, that is, a cell-specific.
  • the RS resource can be used for channel tracking, RMM measurement, and other functions, and can also be used to trigger the receiver to perform the UE in RRC_IDLE or RRC_Inactive. Detection of signals/channels in the state (such as paging, system information, or message 2 or message 4 in the PRACH process, etc.).
  • Embodiment 5 The base station configures the transmission resource of the reference signal in the RRC idle or inactive mode for the terminal through a pre-appointed method or semi-static signaling such as RRC signaling or dynamic signaling such as MAC CE. (Control Resource Set)/initial BWP (Bandwidth Part) frequency domain resources, or frequency domain resources whose frequency deviation from CORESET#0/initial BWP is less than the preset value.
  • MAC CE Control Resource Set
  • initial BWP Bandwidth Part frequency domain resources, or frequency domain resources whose frequency deviation from CORESET#0/initial BWP is less than the preset value.
  • the initial BWP range: the starting point is the PRB with the lowest index of CORESET#0, and the end point is the PRB with the highest index of CORESET#0. If the initial BWP is configured in the high-level signaling, the initial BWP must include CORESET#0. Therefore, a better base station configures the transmission resources of the RS on CORESET#0/initial BWP. This method is the simplest to implement.
  • the base station is the RS transmission resource configured in RRC idle or inactive mode.
  • it can also be configured on non-CORESET#0/initial BWP resources, such as the lowest RS resource. /The distance from the highest frequency point CORESET#0/initial BWP center frequency point, or the frequency domain resource where the deviation of the lowest/highest frequency point is less than the preset value. This is because the UE in the RRC_IDLE or RRC_Inactive state can use other UEs, such as RS resources configured in the connected state, such as periodic RS resources, to be configured to multiple UEs.
  • the UE can be configured with up to 4 dedicated BWPs in the connected state, the difference is that
  • the BWP configured between the UEs may not be aligned, and the UE-specific BWP and the initial BWP often do not completely overlap, so the RS resource will deviate from the UE’s initial BWP in the frequency domain, but in order to prevent the UE from working in RRC idle or inactive mode With a large bandwidth, it is better to limit the RS resources configured for the UE within a certain preset frequency offset mentioned above, which helps the UE to receive only narrowband signals in the RRC idle or inactive mode, which is conducive to the energy saving of the UE. .
  • the preset value of the frequency deviation is preferably configured by the base station through signaling, such as RRC signaling/MAC CE/PDCCH; it can also be pre-defined by the standard through an agreed method; of course, the standard does not rule out multiple definitions based on UE capabilities.
  • the candidate value of offset the base station uses signaling to configure the specific value of the terminal.
  • Method 1 The transmission resource of the RS must overlap with CORESET#0/initial BWP with at least one RE, so as to ensure that the transmission resource of the RS does not differ significantly from CORESET#0/initial BWP, thereby reducing UE power consumption;
  • Method 2 The RS transmission resource is located on a dedicated BWP configured for the UE when the base station is in the connected state, such as the default BWP, so that the RS resource configured by the base station for the UE in the connected state can be directly received in the RRC idle or inactive mode.
  • the advantage of this method is that the configuration is simple and flexible, and the disadvantage is that when receiving at the UE side, there may be the possibility of BWP switching, which leads to increased complexity and power consumption.
  • RS transmission resources are associated with SSB in idle/active mode, for example, frequency resources are a function of SSB frequency resources: for example, the SSB center frequency point is associated with the center frequency point or the lowest or highest frequency point of the RS transmission resource; Or the distance between the lowest frequency point of the RS transmission resource and the highest frequency point of the SSB is a preset value; or the distance between the highest frequency point of the RS transmission resource and the lowest frequency point of the SSB is a preset value.
  • the frequency of RS transmission resources is within the maximum frequency range formed by SSB and initial BWP.
  • the better RS frequency range does not exceed
  • the range formed by the maximum and minimum frequency points of the SSB and the initial BWP can ensure that the UE receives the RS with a smaller bandwidth.
  • the method described in the above embodiment is developed for RRC idle or inactive mode, but the above method is also applicable to the DRX OFF cycle in RRC-connected mode.
  • the base station configures the RS resources for the terminal in the RRC idle or inactive mode to avoid the always-on signal.
  • the base station configures dedicated signaling that takes effect in RRC idle or inactive mode for the terminal;
  • the same RS signal sent by multiple base stations at the same time needs to meet a predetermined rule
  • the RS signal sent by a single base station requires the UE to send RS resource request information in the connected state; the RS resource configured by the base station for the RS needs to meet predetermined conditions (Embodiment 3).
  • the base station or the network configures whether the terminal needs to receive the RS configured according to the RRC signaling in RRC_IDLE or RRC_Inactive mode through explicit signaling or implicit signaling in the connected state, or whether the UE is configured with RS transmission resources in RRC_IDLE or RRC_Inactive mode.
  • the base station configures periodic RS transmission opportunities for the terminal. Only when preset rules are met, the base station will actually send temporary RS signals on these transmission opportunities according to the RS transmission resources configured by high-level signaling.
  • the RS signals can be UE-specific or can be The application of a group of UEs is group-specific, and it can also be applicable to all UEs in the cell, that is, cell-specific.
  • the base station configures the transmission resource of the reference signal in the RRC idle or inactive mode for the terminal through a pre-appointed manner or semi-static signaling such as RRC signaling or dynamic signaling such as MAC CE.
  • a signal transmission method provided in an embodiment of the present application includes:
  • the transmission resource is configured for the terminal through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • configure the transmission resource for the terminal or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • Configuration information of the transmission resource when the terminal is in the connected state, configure the transmission resource for the terminal, or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • the same transmission resources are configured for multiple preset cells.
  • the method further includes: receiving a reference signal transmission resource request sent by the connected terminal, where the transmission resource is configured for the terminal according to the request.
  • a preset rule is determined through negotiation with the terminal in advance, and when the preset rule is satisfied, the reference signal is sent to the terminal on the transmission resource.
  • the preset rule includes:
  • the base station When the base station sends a signal on a periodic sending opportunity, it sends a reference signal corresponding to the signal.
  • the transmission resource is configured for the terminal through dedicated RRC signaling configured for the terminal, and the RRC signaling takes effect when the terminal is in an idle state or an inactive state.
  • the transmission resource of the reference signal has a preset relationship with the signal transmission resource of the terminal in an idle state or an inactive state.
  • the transmission resource is included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP, or is not included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP.
  • the transmission resource when the transmission resource is not included in the frequency domain resources of CORESET#0 or the initial broadband part of the initial BWP, the transmission resource satisfies one or a combination of the following conditions:
  • the frequency deviation between the transmission resource and CORESET#0 or initial BWP is less than a preset value
  • At least one resource unit RE overlaps between the transmission resource and CORESET#0 or initial BWP;
  • the transmission resource is located on a dedicated BWP configured by the base station for the terminal in the connected state;
  • the transmission resource is associated with the synchronization signal block SSB of the terminal in the idle state or the inactive state.
  • the method further includes:
  • the terminal When the terminal is in the connected state through explicit signaling or implicit signaling, the terminal is notified whether the terminal is configured with reference signal transmission resources in an idle state or an inactive state.
  • a signal transmission method provided in an embodiment of the present application includes:
  • S201 Determine a reference signal transmission resource in an idle state, an inactive state, or a connected state configured for the terminal on the network side during an inactive period;
  • the transmission resource configured for the terminal on the network side is learned through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • a preset rule is determined through negotiation with the network side in advance, and when the preset rule is satisfied, the reference signal is received on the transmission resource.
  • the signal detection in the idle state or the inactive state is further performed, otherwise the subsequent signal detection in the idle state or the inactive state associated with the transmission resource is abandoned.
  • a signal transmission device provided in an embodiment of the present application includes:
  • the memory 520 is used to store program instructions
  • the processor 500 is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • a reference signal is sent to a terminal in an idle state, an inactive state, or an inactive period in a connected state.
  • the transmission resource is configured for the terminal through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • configure the transmission resource for the terminal or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • Configuration information of the transmission resource when the terminal is in the connected state, configure the transmission resource for the terminal, or use the physical downlink control channel PDCCH scheduling carried by the control resource set CORESET#0 or search space search space#0 in the idle state or in the inactive state.
  • the same transmission resources are configured for multiple preset cells.
  • the processor 500 is further configured to receive a reference signal transmission resource request sent by the connected terminal, where the transmission resource is configured for the terminal according to the request.
  • a preset rule is determined through negotiation with the terminal in advance, and when the preset rule is satisfied, the reference signal is sent to the terminal on the transmission resource.
  • the preset rule includes:
  • the base station When the base station sends a signal on a periodic sending opportunity, it sends a reference signal corresponding to the signal.
  • the transmission resource is configured for the terminal through dedicated RRC signaling configured for the terminal, and the RRC signaling takes effect when the terminal is in an idle state or an inactive state.
  • the transmission resource of the reference signal has a preset relationship with the signal transmission resource of the terminal in an idle state or an inactive state.
  • the transmission resource is included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP, or is not included in the frequency domain resource of CORESET#0 or the initial broadband part of the initial BWP.
  • the transmission resource when the transmission resource is not included in the frequency domain resources of CORESET#0 or the initial broadband part of the initial BWP, the transmission resource satisfies one or a combination of the following conditions:
  • the frequency deviation between the transmission resource and CORESET#0 or initial BWP is less than a preset value
  • At least one resource unit RE overlaps between the transmission resource and CORESET#0 or initial BWP;
  • the transmission resource is located on a dedicated BWP configured by the base station for the terminal in the connected state;
  • the transmission resource is associated with the synchronization signal block SSB of the terminal in the idle state or the inactive state.
  • processor 500 is further configured to:
  • the terminal When the terminal is in the connected state through explicit signaling or implicit signaling, the terminal is notified whether the terminal is configured with reference signal transmission resources in an idle state or an inactive state.
  • the transceiver 510 is configured to receive and send data under the control of the processor 500.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 500 and various circuits of the memory represented by the memory 520 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 510 may be a plurality of elements, that is, include a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the processor 500 can be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD).
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • a signal transmission apparatus provided in an embodiment of the present application includes:
  • the memory 620 is used to store program instructions
  • the processor 600 is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • the reference signal is received through the transmission resource.
  • the transmission resource configured for the terminal on the network side is learned through pre-appointment and/or high-level signaling and/or dynamic signaling.
  • a preset rule is determined through negotiation with the network side in advance, and when the preset rule is satisfied, the reference signal is received on the transmission resource.
  • the signal detection in the idle state or the inactive state is further performed, otherwise the subsequent signal detection in the idle state or the inactive state associated with the transmission resource is abandoned.
  • the transceiver 610 is configured to receive and send data under the control of the processor 600.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 600 and various circuits of the memory represented by the memory 620 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 610 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of connecting externally and internally with the required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.
  • the processor 600 may be a CPU (central embedded device), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device) , Complex Programmable Logic Devices).
  • CPU central embedded device
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array, field programmable gate array
  • CPLD Complex Programmable Logic Device
  • Complex Programmable Logic Devices Complex Programmable Logic Devices
  • another signal transmission device provided by an embodiment of the present application includes:
  • the determining unit 11 is configured to determine a reference signal transmission resource configured for the terminal;
  • the sending unit 12 is configured to send a reference signal to a terminal in an idle state or an inactive state or an inactive period in a connected state through the transmission resource.
  • another signal transmission apparatus provided by an embodiment of the present application includes:
  • the determining unit 21 is configured to determine the reference signal transmission resource in the idle state or the inactive state or the connected state in the inactive state configured for the terminal on the network side;
  • the receiving unit 22 is configured to receive a reference signal through the transmission resource when the terminal is in an idle state or an inactive state or an inactive period in a connected state.
  • the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • 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 integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .
  • the embodiments of the present application provide a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), etc.
  • the computing device may include a central processing unit (CPU), a memory, an input/output device, etc.
  • the input device may include a keyboard, a mouse, a touch screen, etc.
  • an output device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), Cathode Ray Tube (CRT), etc.
  • the memory may include read only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory.
  • ROM read only memory
  • RAM random access memory
  • the memory may be used to store the program of any of the methods provided in the embodiment of the present application.
  • the processor calls the program instructions stored in the memory, and the processor is configured to execute any of the methods provided in the embodiments of the present application according to the obtained program instructions.
  • the embodiment of the present application provides a computer storage medium for storing computer program instructions used by the device provided in the foregoing embodiment of the present application, which includes a program for executing any method provided in the foregoing embodiment of the present application.
  • the computer storage medium may be any available medium or data storage device that can be accessed by the computer, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • the method provided in the embodiments of the present application can be applied to terminal equipment, and can also be applied to network equipment.
  • the terminal equipment can also be called User Equipment (User Equipment, referred to as "UE"), Mobile Station (Mobile Station, referred to as “MS”), Mobile Terminal (Mobile Terminal), etc.
  • UE User Equipment
  • MS Mobile Station
  • Mobile Terminal Mobile Terminal
  • the terminal can be It has the ability to communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal can be a mobile phone (or called a "cellular" phone), or a mobile computer, etc.
  • the terminal may also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device.
  • the network device may be a base station (for example, an access point), which refers to a device that communicates with a wireless terminal through one or more sectors on an air interface in an access network.
  • the base station can be used to convert received air frames and IP packets into each other, and act as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate the attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in LTE. B), or it can also be gNB in the 5G system.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolutional NodeB
  • the processing flow of the above method can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the steps of the above method are executed.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本申请公开了信号传输方法及装置,用以实现针对NR***RRC_IDLE或RRC_Inactive mode的UE的RS信号传输,从而提高UE的接收性能和节电性能。在网络侧,本申请实施例提供的一种信号传输方法包括:确定为终端配置的参考信号传输资源;通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。

Description

信号传输方法及装置
相关申请的交叉引用
本申请要求在2020年02月07日提交中国专利局、申请号为202010082642.6、申请名称为“信号传输方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及信号传输方法及装置。
背景技术
5G新的无线(New Radio,NR)***中,目前终端(User Equipment,UE)的工作状态分为三种:空闲态(RRC_IDLE)、非激活态(RRC_Inactive)和连接态(RRC_Connected)。只有处于RRC_Connected的UE才允许检测例如小区无线网络临时标识(Cell-Radio Network Temporary Identifier,C-RNTI)加扰的物理下行控制信道(Physical Downlink Control Channel,PDCCH)。鉴于NR终端在RRC_Connected状态(mode)的功耗对***功耗具有决定影响,故NR版本16(Rel-16)对连接态的UE节能(power saving)进行了标准化。在RRC_Connected状态,UE需要持续的监听下行控制信道PDCCH(如C-RNTI加扰),以获知下行PDSCH的发送信息。而基于包的数据流通常是突发性的,在一段时间内有数据传输,但在接下来的一段较长时间内没有数据传输,持续的监听PDCCH必然导致UE的快速耗电。故在没有数据传输的时候,可以通过停止接收PDCCH(此时会停止PDCCH盲检)来降低功耗。因此第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)的设计是通过非连续接收(Discontinuous Reception,DRX)机制达到省电目的,如图1所示。在DRX周期内,UE只在接收打开周期(On duration)内监测PDCCH,在非连续接收时间(Opportunity for DRX)即DRX去激活周期(DRX OFF)时间 内,UE不接收PDCCH,以减少功耗,即进入睡眠状态。
NR Rel-16在DRX激活周期(DRX ON)之前引入基于组公共(group common)PDCCH作为节能信号,该PDCCH在DRX OFF内传输,且以节能无线网络临时标识(Power saving RNTI,PS-RNTI)加扰,只有节能信号中携带UE唤醒指示,UE才会在其后的DRX周期内唤醒接收机,否则Rel-16的UE将继续睡眠。
对于RRC_IDLE或RRC_Inactive的UE,基站不知道UE驻留在哪个基站,如果对于跟踪区(Tracking Area,TA)/基于无线接入网(RAN,Radio Access Network)的通知区域(RAN-based Notification Area,RNA)内的终端(UEs),基站或者核心网会触发寻呼(paging)信号唤醒UEs进入RRC_Connected状态(mode)接收数据,或者去接收SI-RNTI(System information-RNTI)加扰的***信息更新。
目前3GPP还没有针对NR***RRC_IDLE或RRC_Inactive mode的UE如何传输参考信号(reference signal,RS)的解决方案。
发明内容
本申请实施例提供了信号传输方法及装置,用以实现针对NR***RRC_IDLE或RRC_Inactive mode的UE的RS信号传输,从而提高UE的接收性能和节电性能。
在网络侧,例如在基站侧,本申请实施例提供的一种信号传输方法包括:
确定为终端配置的参考信号传输资源;
通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,为终端配置所述传输资源。
可选地,当终端处于连接态时为终端配置所述传输资源,或者在空闲态或非激活态下利用通过控制资源集合CORESET#0或搜索空间search space#0 承载的物理下行控制信道PDCCH调度所述传输资源的配置信息。
可选地,为预设的多个小区配置相同的所述传输资源。
可选地,仅为一个小区配置所述传输资源;
所述方法还包括:接收连接态终端发送的参考信号传输资源请求,所述传输资源是根据所述请求为终端配置的。
可选地,预先与终端协商确定预设规则,当满足所述预设规则时,在所述传输资源上发送所述参考信号给所述终端。
可选地,所述预设规则包括:
当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
可选地,通过为终端配置的专用RRC信令,为终端配置所述传输资源,所述RRC信令在终端处于空闲态或非激活态时生效。
可选地,所述参考信号的传输资源,与空闲态或非激活态下终端的信号传输资源,存在预设关系。
可选地,所述传输资源包含在CORESET#0或初始宽带部分initial BWP的频域资源内,或者,不包含在CORESET#0或初始宽带部分initial BWP的频域资源内。
可选地,当所述传输资源不包含在CORESET#0或初始宽带部分initial BWP的频域资源内时,所述传输资源满足如下条件之一或组合:
所述传输资源与CORESET#0或initial BWP频率偏差小于预设值;
所述传输资源与CORESET#0或initial BWP存在至少一个资源单元RE的重合;
所述传输资源位于基站为处于连接态时的终端配置的专用BWP上;
所述传输资源与空闲态或非激活态下终端的同步信号块SSB相关联。
可选地,所述方法还包括:
通过显式信令或者隐式信令在终端处于连接态时,通知终端是否为该终端配置了空闲态或非激活态下的参考信号传输资源。
相应地,在终端侧,本申请实施例提供的一种信号传输方法,包括:
确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,获知网络侧为终端配置的所述传输资源。
可选地,预先与网络侧协商确定预设规则,当满足所述预设规则时,在所述传输资源上接收所述参考信号。
可选地,如果检测到参考信号,则进一步执行空闲态或非激活态内的信号检测,否则放弃后续的与所述传输资源相关联的空闲态或非激活态内的信号检测。
在网络侧,本申请实施例提供的一种信号传输装置,包括:
存储器,用于存储程序指令;
处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
确定为终端配置的参考信号传输资源;
通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,为终端配置所述传输资源。
可选地,当终端处于连接态时为终端配置所述传输资源,或者在空闲态或非激活态下利用通过控制资源集合CORESET#0或搜索空间search space#0承载的物理下行控制信道PDCCH调度所述传输资源的配置信息。
可选地,为预设的多个小区配置相同的所述传输资源。
可选地,仅为一个小区配置所述传输资源;
所述处理器还用于:接收连接态终端发送的参考信号传输资源请求,所述传输资源是根据所述请求为终端配置的。
可选地,预先与终端协商确定预设规则,当满足所述预设规则时,在所 述传输资源上发送所述参考信号给所述终端。
可选地,所述预设规则包括:
当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
可选地,通过为终端配置的专用RRC信令,为终端配置所述传输资源,所述RRC信令在终端处于空闲态或非激活态时生效。
可选地,所述参考信号的传输资源,与空闲态或非激活态下终端的信号传输资源,存在预设关系。
可选地,所述传输资源包含在CORESET#0或初始宽带部分initial BWP的频域资源内,或者,不包含在CORESET#0或初始宽带部分initial BWP的频域资源内。
可选地,当所述传输资源不包含在CORESET#0或初始宽带部分initial BWP的频域资源内时,所述传输资源满足如下条件之一或组合:
所述传输资源与CORESET#0或initial BWP频率偏差小于预设值;
所述传输资源与CORESET#0或initial BWP存在至少一个资源单元RE的重合;
所述传输资源位于基站为处于连接态时的终端配置的专用BWP上;
所述传输资源与空闲态或非激活态下终端的同步信号块SSB相关联。
可选地,所述处理器还用于:
通过显式信令或者隐式信令在终端处于连接态时,通知终端是否为该终端配置了空闲态或非激活态下的参考信号传输资源。
在终端侧,本申请实施例提供的一种信号传输装置,包括:
存储器,用于存储程序指令;
处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,获知网络侧为终端配置的所述传输资源。
可选地,预先与网络侧协商确定预设规则,当满足所述预设规则时,在所述传输资源上接收所述参考信号。
可选地,如果检测到参考信号,则进一步执行空闲态或非激活态内的信号检测,否则放弃后续的与所述传输资源相关联的空闲态或非激活态内的信号检测。
在网络侧,本申请实施例提供的另一种信号传输装置,包括:
确定单元,用于确定为终端配置的参考信号传输资源;
发送单元,用于通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
在终端侧,本申请实施例提供的另一种信号传输装置,包括:
确定单元,用于确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
接收单元,用于当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
本申请另一实施例提供了一种计算设备,其包括存储器和处理器,其中,所述存储器用于存储程序指令,所述处理器用于调用所述存储器中存储的程序指令,按照获得的程序执行上述任一种方法。
本申请另一实施例提供了一种计算机存储介质,所述计算机存储介质存储有计算机可执行指令,所述计算机可执行指令用于使所述计算机执行上述任一种方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简要介绍,显而易见地,下面描述中的附图仅是本申请的一些实施例,对于本领域的普通技术人员来讲,在不付出创造性劳动的前 提下,还可以根据这些附图获得其他的附图。
图1为DRX周期示意图;
图2为本申请实施例提供的网络侧的一种信号传输方法的流程示意图;
图3为本申请实施例提供的终端侧的一种信号传输方法的流程示意图;
图4为本申请实施例提供的网络侧的一种信号传输装置的结构示意图;
图5为本申请实施例提供的终端侧的一种信号传输装置的结构示意图;
图6为本申请实施例提供的网络侧的另一种信号传输装置的结构示意图;
图7为本申请实施例提供的终端侧的另一种信号传输装置的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,并不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
对于NR***来说,RRC_IDLE或RRC_Inactive mode节电与接收鲁棒性优化也很重要,例如,对于低复杂度的NR终端、智能穿戴设备或者传感器设备,主要工作在RRC_IDLE或RRC_Inactive mode下,且对节电具有比普通NR终端具有更严格的要求。对于长时间工作在RRC_IDLE或RRC_Inactive mode的UEs,UE会接收paging或者***信息。UE为了实现正常接收,需要进行小区搜索过程,接收同步信号块(Synchronization Signal Block,SSB),与***信息,驻留在某小区,为了满足接收质量要求,在某些情况下,如激活时间(Active Time)下,基站还为UE配置各种参考信号(Reference Signal,RS),所述RS可以包括用于信道跟踪的信道状态信息参考信号(CSI-RS)(NR标准中至少包括用于跟踪的CSI-RS信号(CSI-RS for tracking)和/或相位跟踪参考信号(Phase-tracking reference signal,PT-RS))、用于移动性测量的CSI-RS(NR中称为CSI-RS for mobility)、用于信道测量上报的CSI-RS。对于处于RRC_IDLE或RRC_Inactive mode的UE,基站不清楚UE驻留在哪个小 区,无法为UE配置上述RS;对于处于连接态(RRC-connected)的UE在配置了非连续接收(Discontinuous Reception,DRX)时,NR标准规定UE只有在Active Time即激活周期(DRX ON cycle)内才能够对CSI-RS for mobility进行测量;用于CSI测量上报的CSI-RS,NR标准规定最新的CSI-RS测量机会必须在Active Time内,且在DRX OFF内不允许上报CSI测量结果;CSI for tracking即追踪参考信号(Tracking Refernece Signal,TRS)在DRX OFF内是否被接收取决于UE实现,基站可以为UE配置周期的TRS,在DRX OFF周期内,基站可能还会发送该TRS,UE是否接收该TRS用于精同步取决于UE自己的实现算法。对于RRC_IDLE或RRC_Inactive mode的UE基站无法通过信令通知UE,用于信道跟踪与移动性测量及其CSI报告(report)的RS,UE无法利用上述RS提高***性能降低功耗。
本申请实施例提供了信号传输方法及装置,用以实现针对NR***RRC_IDLE或RRC_Inactive mode的UE的RS信号传输,从而提高UE的接收性能和节电性能。
其中,方法和装置是基于同一申请构思的,由于方法和装置解决问题的原理相似,因此装置和方法的实施可以相互参见,重复之处不再赘述。
本申请实施例提供的技术方案可以适用于多种***,尤其是5G***。例如适用的***可以是全球移动通讯(global system of mobile communication,GSM)***、码分多址(code division multiple access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)通用分组无线业务(general packet radio service,GPRS)***、长期演进(long term evolution,LTE)***、LTE频分双工(frequency division duplex,FDD)***、LTE时分双工(time division duplex,TDD)、通用移动***(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)***、5G***以及5G NR***等。这多种***中均包括终端设备和网络设备。
本申请实施例涉及的终端设备,可以是指向用户提供语音和/或数据连通 性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。在不同的***中,终端设备的名称可能也不相同,例如在5G***中,终端设备可以称为用户设备(user equipment,UE)。无线终端设备可以经RAN与一个或多个核心网进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiated protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)等设备。无线终端设备也可以称为***、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本申请实施例中并不限定。
本申请实施例涉及的网络设备,可以是基站,该基站可以包括多个小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(internet protocol,IP)分组进行相互转换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如,本申请实施例涉及的网络设备可以是全球移动通信***(global system for mobile communications,GSM)或码分多址接入(code division multiple access,CDMA)中的网络设备(base transceiver station,BTS),也可以是带宽码分多址接入(wide-band code division multiple access,WCDMA)中的网络设备(NodeB),还可以是长期演进(long term evolution,LTE)***中的演进型网络设备(evolutional node B,eNB或e-NodeB)、5G网络架构 (next generation system)中的5G基站,也可是家庭演进基站(home evolved node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本申请实施例中并不限定。
下面结合说明书附图对本申请各个实施例进行详细描述。需要说明的是,本申请实施例的展示顺序仅代表实施例的先后顺序,并不代表实施例所提供的技术方案的优劣。
本申请实施例中,网络通过标准约定的方法和/或高层信令和/或动态信令,为终端配置单个小区(或基站)内或者多小区(或多基站)内的在RRC_IDLE、或RRC_Inactive状态、或者RRC-connected状态下DRX OFF周期的参考信号的传输资源。其中,RRC-connected mode下会配置DRX周期(cycle),其中在DRX周期内分为激活期(DRX ON)与非激活期(DRX OFF)两部分,在DRX ON内UE需要检测PDCCH,在DRX OFF内UE不检测PDCCH处于睡眠状态。也就是说,本申请实施例可以为处于RRC_IDLE态的终端配置RS传输资源、也可以为处于RRC_Inactive态的终端配置RS传输资源、也可以为处于RRC-connected态DRX OFF周期内的终端配置RS传输资源。
可选地,基站在连接态为UE配置RS传输资源,或者在RRC_IDLE或RRC_Inactive mode下利用通过控制资源集合(CORESET#0)或搜索空间(search space#0)承载的PDCCH调度RS传输资源配置信息。
可选地,所述参考信号至少用于信道跟踪、链路维持、CSI测量、波束(beam)管理、无线资源管理(Radio Resource Management,RRM)测量等功能的一种。
可选地,所述高层信令和/或动态信令,可以适用于DRX OFF周期内处于RRC-idle或者inactive或者RRC-connected状态的终端。
可选地,所述传输资源配置信息至少包括下列信息之一:传输RS的频域资源、当终端处于RRC_IDLE或RRC_Inactive mode时传输信号或者信道的时域传输资源或者机会(时间度量值)。
可选地,将预定的多个小区(或基站)分成多个组,为每组小区(或基 站)配置相同的参考信号传输资源,预定的多个小区之外不配置参考信号的传输资源,或者UE不希望在预定的多个小区之外配置的参考信号的传输资源上接收RS信号。
其中,所述预定的多个小区(或基站),可以根据实际需要而定,本申请实施例不进行限制。
可选地,基站通过无线资源控制(Radio Resource Control,RRC)信令或者媒体接入控制单元(MAC CE)或者物理层显式信令,通知终端是否为处于RRC_IDLE或RRC_Inactive mode的终端配置RS传输资源。
如果RRC信令或者媒体接入控制单元(MAC CE)或者物理层显式信令没有为处于RRC_IDLE或RRC_Inactive mode的终端配置RS传输资源,则采用默认处理方式,例如,不允许UE在配置资源上接收RS或允许UE在配置资源上接收RS。
终端根据基站配置的RS传输资源,按需在RRC_IDLE或RRC_Inactive mode下进行RS接收。
可选地,基站与终端通过预设规则定义RS的实际发送机会,UE只在满足预设规则的RS的发送机会上接收RS信号,基站只在满足预设规则的RS发送机会上发送RS信号。
所述的预设规则,可以根据实际需要而定,本申请实施例不进行限制。
距离RRC_IDLE或RRC_Inactive mode内发送的信号/信道预设距离内没有SSB,则基站在RS的预设资源上发送该RS信号。例如,SSB内包含PSS/SSS可以用于同步,假设RS传输资源在idle内要发送的信号之前的固定正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号上,若SSB恰好距离该传输信号paging为2个OFDM符号,再增加一额外的RS没有太大意义,也可能与SSB发生碰撞,所以可以在资源上不发送RS;当然,为标准化简单,也可就在距离paging时域固定距离的位置发送RS,不用考虑是否存在SSB。
可选地,基站为处于连接态的UE配置在idle态可以接收RS的传输资源, 为UE在连接态可以接收的RS资源。
可选地,网络侧,例如基站,为UE配置RRC信令,该RRC信令在终端处于idle和/或inactive mode下生效,该RRC信令功能用于配置UE在RRC_IDLE或RRC_Inactive mode下的RS传输相关的配置信息,该配置信息例如可以包含资源配置信息和/或是否为UE在RRC_IDLE或RRC_Inactive mode下配置了RS传输资源。
可选地,基站为连接态UE配置的在idle态可以接收RS的传输资源,例如包括如下步骤之一或组合:
步骤一、UE在连接态下向基站发送RS传输资源请求信息,该RS传输资源为RRC_IDLE或RRC_Inactive态下的UE需要接收RS的传输资源;
步骤二、基站配置UE是否在RRC_IDLE或RRC_Inactive态下接收RS;如果基站配置了UE需要或者可以在RRC_IDLE或RRC_Inactive态下接收RS或者基站为UE配置了RS传输资源,UE在当前驻留小区接收基站在配置的RS传输资源发送的RS;如果基站没有为UE配置RRC_IDLE或RRC_Inactive态下RS的传输资源,则UE不接收该基站发送的RS。
步骤三、如果UE在RRC_IDLE或RRC_Inactive态下移出当前小区,驻留在新的小区,UE重新进入连接态,发送RS传输资源请求信息。然后,执行与上述步骤二相同的步骤即可。
可选地,基站通过高层信令或者物理层信令配置UE在RRC_IDLE或RRC_Inactive态下的生效周期、或者非周期的RS传输资源。目前标准所配置的RRC信令虽然是基站通知UE的但都是RRC-connected下生效的,一旦UE进入RRC-idle/inactive mode原来在RRC-connected下配置的信令其内容不能应用于RRC-idle/inactive mode,因为基站不知道UE没有业务处于idle态时在哪里,既然不知道UE的归属,原小区配置的RRC信令配置的资源不能用于空闲模式功能(idle mode);如果希望RRC配置的RS资源可以用与idle mode就需要配置专用信令可以用于idle mode或者既可以用于idle也可以用于RRC-connected mode。所谓生效周期,就是前面所述RRC-connected下配 置在idle态可以生效的意思。一般来说只是传输机会是周期的,而实际传输是非周期的,例如针对UE的paging有时只在少数寻呼时刻(paging occasion)上存在,仅在实际发送paging的paging occasion前发送RS。
可选地,基站根据预设规则确定RS的发送机会(时频资源),在满足预设规则的RS发送位置(时频位置)发送RS信号,UE只在存在RS的满足预设规则的传输资源上接收RS信号。
所述预设规则为基站与终端预先约定的方法或RRC信令配置的方式,具体规则可以根据实际需要而定,本申请实施例不进行限制。
所述预设规则例如包括:
当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
UE侧可以先接收对应RS信号,然后尝试接收是否存在RRC-idle/inactive态内发送的信号/信道;
或者,如果RS信号被检测到,触发后续执行RRC-idle/inactive态内的信号/信道检测,否则UE放弃后续的与所述传输资源相关联的RRC-idle/inactive态内的信号/信道检测。
对处于RRC_IDLE或RRC_Inactive mode的终端的RS传输资源,例如可以为非周期的信号/信道配置的RS资源,该RS传输资源可以按照预定方式与RRC_IDLE或RRC_Inactive mode的终端传输的信号/信道的资源相关联。
基站可以与终端在RRC_IDLE或RRC_Inactive态内需要接收的一个或者多个信号/信道之前的一个预定的时间窗口内接收RS信号,在窗口之外的RS发送机会或者资源上,UE不希望接收RS;
在RS传输资源之后,与接收信号/信道之间若存在SSB,则UE可以不希望在RS发送机会上接收RS,事实上在UE不希望接收RS信号的资源上,基站可以不用发送RS信号,从而降低开销。
信道跟踪(tracking)功能的RS信号如果被检测到,才会触发后续执行RRC_IDLE或RRC_Inactive态内的信号/信道检测,否则UE放弃后续的该RS传输资源相关联的RRC_IDLE或RRC_Inactive态内的信号/信道检测机会。
可选地,基站通过预先约定方式或者半静态信令(例如专用的RRC信令)或动态信令(如MAC CE),为终端配置在RRC idle或inactive mode下的参考信号的传输资源。
该传输资源,例如可以位于包含控制资源集合(Control Resource Set,CORESET)#0,和/或,初始带宽部分(initial BWP,initial Bandwidth Part)的频域资源上;或者,该传输资源位于与CORESET#0和/或initial BWP频率偏差小于预设值的频域资源上。例如:
所述RS的传输资源与CORESET#0和/或initial BWP存在至少一个RE的重合;
该RS的传输资源位于基站在UE处于连接态时为UE配置的专用BWP;
RS传输资源与UE处于idle和/或active mode下的SSB相关联;
RS的传输资源在频率上,在SSB与initial BWP构成的最大频率范围内。
下面介绍几个具体实施例。
实施例1:网络通过静态信令,例如基站与终端标准约定的方法和/或者半静态信令如高层RRC信令和/或动态信令如MAC CE为终端配置单个小区/基站或者多小区/基站内的在RRC_IDLE或RRC_Inactive状态下参考信号的传输资源,该传输资源配置信息较佳的至少可包括用于RS发送的频域资源,还可以包含该RS传输资源与RRC_IDLE或RRC_Inactive mode内发送信号或者信道之间的时间度量值,比如RS传输资源与RRC_IDLE或RRC_Inactive mode内发送信号/信道间的时间偏置值。例如基站或者网络为UE配置高层信令,该高层信令在RRC-idle或者inactive或者RRC-connected的DRX OFF周期内有效,或者该信令的适用范围为RRC-idle或者inactive或者RRC-connected的DRX OFF周期。该资源上发送的RS信号可以用于信道跟踪、链路维持、或者CSI测量、beam管理等功能,甚至用于RRM测量。现有技术不支持UE在RRC_IDLE或RRC_Inactive状态或者RRC-connected状态下的DRX OFF duration即非激活期内的发送与接收。更具体的,如基站可以通过RRC信令或者标准预先约定的方式,或者MAC CE为处于RRC-connected mode即连接 态的UE配置一个小区或者多个小区的参考信号传输资源,由于处于RRC_IDLE或RRC_Inactive状态的UE随着位置的移动,会切换到其他小区,而基站侧不清楚UE当前的位置,因此在连接态为UE配置的参考信号的传输资源,较佳的包含至少一个小区或者小区组内的传输资源,例如可以考虑将预定的多个小区/基站,如idle态对应的TA(Tacking Area)或者Inactive态对应的RNA(RAN-based Notification Area)内的多个小区/基站分成多个组,每个小区/基站组配置相同的参考信号传输资源,特殊情况,上述预定义的多个小区/基站只分一个组,即预订范围内的多个小区/基站都配置相同的参考信号传输资源。考虑到RRC_IDLE或RRC_Inactive mode时,基站不清楚UE位置,较佳的预订区域的多个基站同时在为RRC_IDLE或RRC_Inactive mode发送的参考信号配置的资源上发送参考信号。该参考信号至少用于信道跟踪、链路维持、或者CSI测量、beam管理,RRM测量等功能的一种。考虑到,UE可能会移出预定的多小区,为了降低开销,较佳的网络不在预定的多小区外的其他小区上在所配置的所述RS资源上发送上述参考信号。
基站在RRC_IDLE或RRC_Inactive mode内配置RS传输资源,例如基站可以在RRC_IDLE或RRC_Inactive mode下传输RRC信令配置RS传输资源配置信息,例如基站通过CORESET#0或search space#0承载的PDCCH调度RS传输资源配置信息,PDCCH可以采用SI-RNTI(System Information RNTI)加扰,或者采用新的RNTI加扰,如新配置一个RS-RNTI(Reference signal RNTI)加扰。当调度RS资源配置信息的PDCCH采用SI-RNTI加扰时,实际上该RRM信令是通过***信息如SIB1的资源传输的,虽然该RS配置资源信息不是***信息但是可以借助***信息资源传输该RS资源配置信息。当调度RS资源配置信息的PDCCH采用新的RNTI加扰时,DCI格式可以重用DCI format0_0/1_0。
上述用于RRC idle或inactive mode的方法,同样适用于RRC-connected mode的DRX OFF duration。
实施例2:基站或者网络通过显式信令或者隐式信令在连接态配置终端是 否需要在RRC_IDLE或RRC_Inactive mode下接收根据RRC信令配置的RS或者是否为UE配置了RRC_IDLE或RRC_Inactive mode下的RS传输资源。例如基站通过RRC信令或者MAC CE或者物理层显式信令通知终端是否在为RRC_IDLE或RRC_Inactive mode配置的RS传输资源,如果该信令没有配置,则采用默认状态,较佳的默认状态为不允许UE在配置资源上接收对应RS/允许UE在配置资源上接收对应RS。
更具体的基站可以预先为终端配置RS资源,该资源用于RRC_IDLE或RRC_Inactive mode下RS发送。基站如果配置了允许UE在对应资源上接收RS,例如通过1比特指示,或配置一个高层信令,也不排除其他方式。当UE可能处于小区中心或者信道条件较好,或者刚刚接收完SSB并不需要接收额外的RS,但随着UE的移动,UE进入小区边沿,由终端根据自己的实际需求在RRC_IDLE或RRC_Inactive mode下进行RS接收,以满足实际需求如信道tracking或者RRM测量,CSI测量等。另外一种方式基站与终端通过预设规则,预先约定RS的实际发送机会,比如在距离RRC_IDLE或RRC_Inactive mode内发送的信号/信道预设距离内没有SSB,则在基站在RS的预设资源上发送该RS信号,RS信号的发送频域资源及其时域相对于RRC_IDLE或RRC_Inactive mode内发送的信号/信道的发送偏置offset较佳的由高层信令通知或者预先约定,offset较佳的大于等于0,不排除小于0,而UE在所述RS对应资源上接收该RS信号。否则,终端在不满足预设规则的RS发送机会上不希望接收对应的RS信号。
上述RS传输资源也有可能是基站为UE配置的周期性RS资源,例如一种情况,该RS资源是基站为UE在连接态配置且在连接态可以使用,此时基站在连接态采用的RS资源,可以按照基站指示部分或者全部继续应用于RRC_IDLE或RRC_Inactive mode,需要基站在RRC_IDLE或RRC_Inactive mode在指定RS资源上继续发送RS,UE在RRC_IDLE或RRC_Inactive mode在对应RS资源上根据需要继续接收RS信号,而现有技术在RRC-connected配置的RS在RRC_IDLE或RRC_Inactive mode内是无效的,基站不发,UE 也不会接收;另外一种情况,该RS资源可能为一组UE配置,比如可用于连接态,即使当前UE处于RRC_IDLE或RRC_Inactive mode,但是配置了该RS资源的其他UE很有可能还处于RRC-connected mode,所以在当前UE处于RRC_IDLE或RRC_Inactive mode时,基站还可能继续在所配置的RS资源上发送RS信号。较佳的如果基站配置UE可以在RRC_IDLE或RRC_Inactive mode下接收根据RRC信令配置的RS资源,即可继续利用该RS资源,则UE根据需要在RRC_IDLE或RRC_Inactive mode内接收对应RS资源的RS,如在接收数据或者控制信令前继续接收该RS,或者在RRM测量时继续接收该RS,或者如前面所述的其他用途。
基站或者网络较佳的可为UE配置一个专用RRC信令,该RRC信令特征在于:该RRC信令在idle和/或inactive mode下生效,功能为配置UE在RRC_IDLE或RRC_Inactive mode下的RS发送相关的配置信息,该配置信息例如可以包含资源配置信息和/或是否为UE在RRC_IDLE或RRC_Inactive mode下配置了RS资源。该RS的功能与前述相同,在此不再赘述。上述在RRC_IDLE或RRC_Inactive mode下的生效的RRC配置信令可以隐式通知UE在对应资源上接收对应的RS。
实施例3:
基站或者基站组通过RRC信令为UE配置RRC_IDLE或RRC_Inactive态下参考信号的传输资源时,考虑到多个小区/基站同时在RRC_IDLE或RRC_Inactive态发送参考信号在实际中会占用较多资源,一种较佳的实现方式基站通过前述的高层信令为终端配置的在RRC_IDLE或RRC_Inactive态下RS的传输资源配置信息,UE在当前小区根据基站的配置在RRC_IDLE或RRC_Inactive态下接收对应的RS信号,较佳的所述方法可支持仅在一个基站向UE发送RS信号。其过程如下:
步骤一、UE在连接态下向基站发送RS传输资源请求信息,该RS资源为RRC_IDLE或RRC_Inactive态下UE需要接收RS的资源;
步骤二、基站配置UE是否在RRC_IDLE或RRC_Inactive态下接收对应 RS;如果基站配置了UE需要或者可以在RRC_IDLE或RRC_Inactive态下接收对应RS或者基站为UE配置了RS传输资源,UE在当前驻留小区接收基站在对应资源配置的RS;如果基站没有为UE配置对应的RRC_IDLE或RRC_Inactive态下RS的传输资源,UE不接收对应RS。
如果UE在RRC_IDLE或RRC_Inactive态下移出当前小区,驻留在新的小区,UE重新进入连接态,发送RS资源请求信息。然后继续执行上述步骤二。
实施例4:
基站通过高层信令或者物理层信令配置UE在RRC_IDLE或RRC_Inactive态下生效的周期、或者非周期的RS传输资源。例如,基站在连接态时利用RRC信令为UE配置在RRC_IDLE或RRC_Inactive mode下生效的周期RS发送机会;或者基站与终端利用预先约定的方式配置部分RS发送配置信息,利用RRC信令配置另外一部分RS发送配置信息;或者利用RRC信令配置一部分RS发送配置信息,利用MAC CE动态配置另外一部分的RS传输资源配置信息。上述RS传输资源在UE处于RRC_IDLE或RRC_Inactive态时生效。
事实上,基站在为终端配置的用于RRC_IDLE或RRC_Inactive mode的RS资源上,在预定的一个或者多个小区同时发送RS信号,会导致较大的***开销,而且容易构成始终开启(always on)信号。较佳的基站根据预设规则确定RS的发送机会,在满足要求的RS发送位置发送RS信号,UE只在存在RS的对应传输资源上接收RS信号。所述预设规则,例如可以是RS信号的发送机会可以与RRC_IDLE或RRC_Inactive mode内发送的信号/信道相关联,比如较佳的RS的时域发送机会总是位于***信息之前的约定位置或者与***信息的发送位置存在部分重合,由于SSB所携带的MIB(Master information block)以外的其他***信息只有接收到paging中***消息改编后才会被接收,所以***信息不是always on信号,从而与之关联的RS也不是always on信号;又比如对于物理随机接入信道(Physical Random Access  Channel,PRACH)过程中的信息(message)2/message 4并不是always on信号,如果RS发送机会与其关联,同样也可以避免RS信号为always on信号,且能有效提高***性能。所以一种较简单的方法,对RRC_IDLE或RRC_Inactive mode内传输机会为非周期的信号/信道配置对应的RS资源,该RS的发送机会按照预定方式与RRC_IDLE或RRC_Inactive mode内传输的信号/信道的机会相关联。
RRC_IDLE或RRC_Inactive mode内传输的信号其传输机会往往是周期的,如paging信号的接收机会在RRC_IDLE或RRC_Inactive mode是周期的,又如用于唤醒UE接收paging的节能信号,由于paging的检测机会是周期的,所以节能信号的检测机会也是周期的或者用于RMM测量的信号也往往是周期信号。对于此类发送机会为周期的信号/信道,如果为每个发送机会都配置RS信号必然导致always on信号。类似于传输机会是非周期的场景,发送机会为周期的信号/信道(如paging信号或者与paging信号对应的节能信号)对应的RS传输资源也可与RRC_IDLE或RRC_Inactive态内UE周期接收的信号/信道相关联,以paging为例,基站可以利用基站或者终端约定的方法或者RRC信令配置的方法,在paging发送的寻呼帧(paging Frame,PF)或者寻呼机会(paging occasion,PO)相关联的位置上配置发送RS信号的传输资源,更具体的如每个PF或者几个PF存在一个公共的RS信号传输资源。所以一个RS资源可以关联一个或者多个UE在RRC_IDLE或RRC_Inactive态内的信号/信道的发送机会,以做到尽可能的降低RS开销。在RRC_IDLE或RRC_Inactive态,UE对应的周期性信号/信道的接收机会与RS资源的关联性即RS的具体时频位置可根据预定规则确定,例如可以利用前述的基站与终端预先标准约定的方法或RRC信令配置的方式,或者MAC CE信令配置,更具体的如基站可以为终端在RRC_IDLE或RRC_Inactive态内需要接收的一个或者多个信号/信道之前的一个预定的时间窗口内配置RS信号,在窗口之外的RS发送机会或者资源上,UE不希望接收对应RS;又比另外一种方法,如在RS资源发送机会之后与接收信号/信道之间若存在SSB则UE可以不希望在对 应RS发送机会上接收RS,事实上UE不希望接收RS信号的资源上,基站可以不用发送该RS信号,从而降低开销。总之,RRC_IDLE或RRC_Inactive态内发送机会为周期的信号/信道,对应的RS传输资源由高层信令配置,其发送机会与RRC_IDLE或RRC_Inactive态内UE需要周期接收的信号/信道相关联。较佳的基站在周期发送机会上有前述信号/信道发送时,才会发送该RS信号。UE侧可以先接收对应RS信号,然后尝试接收是否存在RRC_IDLE或RRC_Inactive态内发送的信号/信道;进一步,另外一种处理方法:较佳的UE侧,如果与RRC_IDLE或RRC_Inactive mode下具有信道tracking功能的RS信号如果被检测到,才会触发后续执行RRC_IDLE或RRC_Inactive态内的信号/信道如paging检测,或者节能信号检测,否则UE放弃后续的该RS资源相关联的RRC_IDLE或RRC_Inactive态内的信号/信道如paging检测机会。
如上所述,发送机会是周期的信号/信道(如paging信号或者paging信号对应的节能信号),以paging为例,如果每个RS传输资源对应的paging发送机会上都存在paging发送,则RS资源就是周期的;如果存在某些RS资源的对应的paging发送机会上没有paging发送,基站可以不在这些RS传输资源上发送RS,如此一来,RS的实际传输资源就是非周期的。基站为终端配置周期的RS发送机会,只有满足预设规则,基站才会真正在这些发送机会上按照高层信令配置的RS传输资源发送临时的RS信号,较佳的该RS信号可以是UE专属的(UE specific)或者可以对一组UE适用即UE专属组(group specific),也可以对小区内的所有UE都适用,即小区专属的(cell specific)。
当基站为UE在RRC_IDLE或RRC_Inactive态内的信号/信道配置了对应的RS资源时,该RS资源除了可以用于信道跟踪、RMM测量、等功能还可以用于触发接收机进行UE在RRC_IDLE或RRC_Inactive态内的信号/信道(如paging,***信息,或者PRACH过程中的message 2或者message 4等)的检测。
实施例5:基站通过预先约定方式或者半静态信令如RRC信令或动态信令如MAC CE为终端配置在RRC idle或inactive mode下的参考信号的传输资源,较佳的位于包含CORESET#0(Control Resource Set)/initial BWP (Bandwidth Part)的频域资源上,或者与CORESET#0/initial BWP频率偏差小于预设值的频域资源上。
对于RRC_IDLE或RRC_Inactive mode的UE,如果没有高层信令配置initial BWP,则initial BWP范围:起点为CORESET#0的最低index的PRB,终点是CORESET#0的最高index的PRB。如果高层信令配置了initial BWP,则initial BWP必须包含CORESET#0,所以较佳的基站将RS的传输资源配置在CORESET#0/initial BWP上,该方法实现起来最简单。
基站为RRC idle或inactive mode下配置的RS传输资源,除了可以配置在CORESET#0/initial BWP上,较佳的也可以配置在非CORESET#0/initial BWP资源上,例如所述RS资源的最低/最高频点距离CORESET#0/initial BWP中心频点,或最低/最高频点的偏差小于预设值的频域资源上。这是因为,RRC_IDLE或RRC_Inactive态的UE可以利用其他UE如在连接态配置的RS资源如周期性RS资源配置给多个UE的场景,由于UE在连接态可以配置多达4个专用BWP,不同UE间配置的BWP不一定能够对齐,而且UE specific BWP与initial BWP往往不会完全重合,所以RS资源在频域上会偏离UE的initial BWP,但是为了避免UE在RRC idle或inactive mode下工作在大带宽下,较佳的可以将为该UE配置的RS资源限制在前面所述的某预设的频率offset以内,这样有助于UE在RRC idle或inactive mode下只接收窄带信号,利于UE节能。所述频率偏差的预设值较佳的由基站通过信令配置,如RRC信令/MAC CE/PDCCH;也可以通过约定的方法由标准预先定义;当然也不排除标准根据UE能力定义多个offset的候选值,基站利用信令为终端配置具体采用那个值。
在上述RS资源不包含在CORESET#0/initial BWP资源内时,除了上面所述与CORESET#0/initial BWP频域位置相比不超过预设值外,还可以采用其他方法例如,方法一:所述RS的传输资源必须与CORESET#0/initial BWP存在至少一个RE的重合,这样可以保证RS的传输资源距离CORESET#0/initial BWP不会相差较大,从而利用UE功耗降低;方法二,该RS的传输资源位 于基站在连接态时为UE配置的某专用BWP上,例如default BWP,如此以来基站在连接态为UE配置的RS资源,在RRC idle或inactive mode时便可以直接接收。该方法优点在于配置简单、灵活,缺陷在于UE侧接收时,可能存在BWP切换的可能,导致复杂度与功耗增加。方法三,RS传输资源与idle/active mode下SSB相关联,例如频率资源是SSB频率资源的函数:比如与SSB中心频点与RS传输资源的中心频点或者最低或者最高频点相关联;或者RS传输资源的最低频点距离SSB的最高频点为某预设值;或者RS传输资源的最高频点距离SSB最低频点距离为预设值。方法四:RS的传输资源在频率上在SSB与initial BWP构成的最大频率范围内,因为SSB可以在initial BWP之外且距离initial BWP的距离为确定值,所以较佳的RS频域范围不超过SSB与initial BWP的最大,与最小频点构成的范围,这样可以保证UE以较小带宽接收RS。
上述实施例所述方法是针对RRC idle或inactive mode展开的,但是上述方法同样适用于RRC-connected mode下的DRX OFF周期。
综上所述,本申请实施例提供如下技术方案:
基站为终端在配置用于RRC idle或inactive mode下的RS资源,避免always on信号。
基站为终端配置在RRC idle或inactive mode生效的专用信令;
多个基站同时发送的相同的RS信号需要满足预定规则;
单个基站发送的RS信号,需要UE在连接态发送RS资源请求信息;基站为RS配置的RS资源需要满足预定条件(实施例3)。
基站或者网络通过显式信令或者隐式信令在连接态配置终端是否需要在RRC_IDLE或RRC_Inactive mode下接收根据RRC信令配置的RS或者是否为UE配置了RRC_IDLE或RRC_Inactive mode下的RS传输资源。基站为终端配置周期的RS发送机会,只有满足预设规则,基站才会真正在这些发送机会上按照高层信令配置的RS传输资源发送临时的RS信号,该RS信号可以是UE specific或者可以对一组UE适用即group specific,也可以对小区内的 所有UE都适用,即cell specific。
基站通过预先约定方式或者半静态信令如RRC信令或动态信令如MAC CE为终端配置在RRC idle或inactive mode下的参考信号的传输资源。
参见图2,在网络侧,例如在基站侧,本申请实施例提供的一种信号传输方法包括:
S101、确定为终端配置的参考信号传输资源;
S102、通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,为终端配置所述传输资源。
可选地,当终端处于连接态时为终端配置所述传输资源,或者在空闲态或非激活态下利用通过控制资源集合CORESET#0或搜索空间search space#0承载的物理下行控制信道PDCCH调度所述传输资源的配置信息。
可选地,为预设的多个小区配置相同的所述传输资源。
可选地,仅为一个小区配置所述传输资源;
该方法还包括:接收连接态终端发送的参考信号传输资源请求,所述传输资源是根据所述请求为终端配置的。
可选地,预先与终端协商确定预设规则,当满足所述预设规则时,在所述传输资源上发送所述参考信号给所述终端。
可选地,所述预设规则包括:
当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
可选地,通过为终端配置的专用RRC信令,为终端配置所述传输资源,所述RRC信令在终端处于空闲态或非激活态时生效。
可选地,所述参考信号的传输资源,与空闲态或非激活态下终端的信号传输资源,存在预设关系。
可选地,所述传输资源包含在CORESET#0或初始宽带部分initial BWP的频域资源内,或者,不包含在CORESET#0或初始宽带部分initial BWP的 频域资源内。
可选地,当所述传输资源不包含在CORESET#0或初始宽带部分initial BWP的频域资源内时,所述传输资源满足如下条件之一或组合:
所述传输资源与CORESET#0或initial BWP频率偏差小于预设值;
所述传输资源与CORESET#0或initial BWP存在至少一个资源单元RE的重合;
所述传输资源位于基站为处于连接态时的终端配置的专用BWP上;
所述传输资源与空闲态或非激活态下终端的同步信号块SSB相关联。
可选地,该方法还包括:
通过显式信令或者隐式信令在终端处于连接态时,通知终端是否为该终端配置了空闲态或非激活态下的参考信号传输资源。
相应地,参见图3,在终端侧,本申请实施例提供的一种信号传输方法,包括:
S201、确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
S202、当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,获知网络侧为终端配置的所述传输资源。
可选地,预先与网络侧协商确定预设规则,当满足所述预设规则时,在所述传输资源上接收所述参考信号。
可选地,如果检测到参考信号,则进一步执行空闲态或非激活态内的信号检测,否则放弃后续的与所述传输资源相关联的空闲态或非激活态内的信号检测。
参见图4,在网络侧,本申请实施例提供的一种信号传输装置,包括:
存储器520,用于存储程序指令;
处理器500,用于调用所述存储器中存储的程序指令,按照获得的程序执 行:
确定为终端配置的参考信号传输资源;
通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,为终端配置所述传输资源。
可选地,当终端处于连接态时为终端配置所述传输资源,或者在空闲态或非激活态下利用通过控制资源集合CORESET#0或搜索空间search space#0承载的物理下行控制信道PDCCH调度所述传输资源的配置信息。
可选地,为预设的多个小区配置相同的所述传输资源。
可选地,仅为一个小区配置所述传输资源;
所述处理器500还用于:接收连接态终端发送的参考信号传输资源请求,所述传输资源是根据所述请求为终端配置的。
可选地,预先与终端协商确定预设规则,当满足所述预设规则时,在所述传输资源上发送所述参考信号给所述终端。
可选地,所述预设规则包括:
当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
可选地,通过为终端配置的专用RRC信令,为终端配置所述传输资源,所述RRC信令在终端处于空闲态或非激活态时生效。
可选地,所述参考信号的传输资源,与空闲态或非激活态下终端的信号传输资源,存在预设关系。
可选地,所述传输资源包含在CORESET#0或初始宽带部分initial BWP的频域资源内,或者,不包含在CORESET#0或初始宽带部分initial BWP的频域资源内。
可选地,当所述传输资源不包含在CORESET#0或初始宽带部分initial BWP的频域资源内时,所述传输资源满足如下条件之一或组合:
所述传输资源与CORESET#0或initial BWP频率偏差小于预设值;
所述传输资源与CORESET#0或initial BWP存在至少一个资源单元RE的重合;
所述传输资源位于基站为处于连接态时的终端配置的专用BWP上;
所述传输资源与空闲态或非激活态下终端的同步信号块SSB相关联。
可选地,所述处理器500还用于:
通过显式信令或者隐式信令在终端处于连接态时,通知终端是否为该终端配置了空闲态或非激活态下的参考信号传输资源。
收发机510,用于在处理器500的控制下接收和发送数据。
其中,在图4中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。处理器500负责管理总线架构和通常的处理,存储器520可以存储处理器500在执行操作时所使用的数据。
处理器500可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)。
参见图5,在终端侧,本申请实施例提供的一种信号传输装置,包括:
存储器620,用于存储程序指令;
处理器600,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
可选地,通过预先约定和/或高层信令和/或动态信令,获知网络侧为终端配置的所述传输资源。
可选地,预先与网络侧协商确定预设规则,当满足所述预设规则时,在所述传输资源上接收所述参考信号。
可选地,如果检测到参考信号,则进一步执行空闲态或非激活态内的信号检测,否则放弃后续的与所述传输资源相关联的空闲态或非激活态内的信号检测。
收发机610,用于在处理器600的控制下接收和发送数据。
其中,在图5中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口630还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理,存储器620可以存储处理器600在执行操作时所使用的数据。
可选的,处理器600可以是CPU(中央处埋器)、ASIC(Application Specific Integrated Circuit,专用集成电路)、FPGA(Field-Programmable Gate Array,现场可编程门阵列)或CPLD(Complex Programmable Logic Device,复杂可编程逻辑器件)。
在网络侧,参见图6,本申请实施例提供的另一种信号传输装置,包括:
确定单元11,用于确定为终端配置的参考信号传输资源;
发送单元12,用于通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
在终端侧,参见图7,本申请实施例提供的另一种信号传输装置,包括:
确定单元21,用于确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
接收单元22,用于当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
需要说明的是,本申请实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例提供了一种计算设备,该计算设备具体可以为桌面计算机、便携式计算机、智能手机、平板电脑、个人数字助理(Personal Digital Assistant,PDA)等。该计算设备可以包括中央处理器(Center Processing Unit,CPU)、存储器、输入/输出设备等,输入设备可以包括键盘、鼠标、触摸屏等,输出设备可以包括显示设备,如液晶显示器(Liquid Crystal Display,LCD)、阴极射线管(Cathode Ray Tube,CRT)等。
存储器可以包括只读存储器(ROM)和随机存取存储器(RAM),并向处理器提供存储器中存储的程序指令和数据。在本申请实施例中,存储器可以用于存储本申请实施例提供的任一所述方法的程序。
处理器通过调用存储器存储的程序指令,处理器用于按照获得的程序指令执行本申请实施例提供的任一所述方法。
本申请实施例提供了一种计算机存储介质,用于储存为上述本申请实施例提供的装置所用的计算机程序指令,其包含用于执行上述本申请实施例提供的任一方法的程序。
所述计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备,包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本申请实施例提供的方法可以应用于终端设备,也可以应用于网络设备。
其中,终端设备也可称之为用户设备(User Equipment,简称为“UE”)、移动台(Mobile Station,简称为“MS”)、移动终端(Mobile Terminal)等,可选的,该终端可以具备经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信的能力,例如,终端可以是移动电话(或称为“蜂窝”电话)、或具有移动性质的计算机等,例如,终端还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
网络设备可以为基站(例如,接入点),指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换,作为无线终端与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如,基站可以是GSM或CDMA中的基站(BTS,Base Transceiver Station),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(NodeB或eNB或e-NodeB,evolutional Node B),或者也可以是5G***中的gNB等。本申请实施例中不做限定。
上述方法处理流程可以用软件程序实现,该软件程序可以存储在存储介质中,当存储的软件程序被调用时,执行上述方法步骤。
本领域内的技术人员应明白,本申请的实施例可提供为方法、***、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (36)

  1. 一种信号传输方法,其特征在于,所述方法包括:
    确定为终端配置的参考信号传输资源;
    通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
  2. 根据权利要求1所述的方法,其特征在于,通过预先约定和/或高层信令和/或动态信令,为所述终端配置所述传输资源。
  3. 根据权利要求1所述的方法,其特征在于,当终端处于连接态时为所述终端配置所述传输资源,或者在空闲态或非激活态下利用通过控制资源集合CORESET#0或搜索空间search space#0承载的物理下行控制信道PDCCH调度所述传输资源的配置信息。
  4. 根据权利要求1所述的方法,其特征在于,为预设的多个小区配置相同的所述传输资源。
  5. 根据权利要求1所述的方法,其特征在于,仅为一个小区配置所述传输资源;还包括:
    接收连接态终端发送的参考信号传输资源请求,所述传输资源是根据所述请求为所述终端配置的。
  6. 根据权利要求1所述的方法,其特征在于,预先与终端协商确定预设规则,当满足所述预设规则时,在所述传输资源上发送所述参考信号给所述终端。
  7. 根据权利要求6所述的方法,其特征在于,所述预设规则包括:
    当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
  8. 根据权利要求1所述的方法,其特征在于,通过为终端配置的专用RRC信令,为所述终端配置所述传输资源,所述RRC信令在终端处于空闲态或非激活态时生效。
  9. 根据权利要求1所述的方法,其特征在于,所述参考信号的传输资源, 与空闲态或非激活态下终端的信号传输资源,存在预设关系。
  10. 根据权利要求1所述的方法,其特征在于,所述传输资源包含在CORESET#0或初始宽带部分initial BWP的频域资源内,或者,不包含在CORESET#0或初始宽带部分initial BWP的频域资源内。
  11. 根据权利要求1所述的方法,其特征在于,当所述传输资源不包含在CORESET#0或初始宽带部分initial BWP的频域资源内时,所述传输资源满足如下条件之一或组合:
    所述传输资源与CORESET#0或initial BWP频率偏差小于预设值;
    所述传输资源与CORESET#0或initial BWP存在至少一个资源单元RE的重合;
    所述传输资源位于基站为处于连接态时的终端配置的专用BWP上;
    所述传输资源与空闲态或非激活态下终端的同步信号块SSB相关联。
  12. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    通过显式信令或者隐式信令在终端处于连接态时,通知终端是否为该终端配置了空闲态或非激活态下的参考信号传输资源。
  13. 一种信号传输方法,其特征在于,所述方法包括:
    确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
    当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
  14. 根据权利要求13所述的方法,其特征在于,通过预先约定和/或高层信令和/或动态信令,获知网络侧为终端配置的所述传输资源。
  15. 根据权利要求13所述的方法,其特征在于,预先与网络侧协商确定预设规则,当满足所述预设规则时,在所述传输资源上接收所述参考信号。
  16. 根据权利要求13所述的方法,其特征在于,如果检测到参考信号,则进一步执行空闲态或非激活态内的信号检测,否则放弃后续的与所述传输资源相关联的空闲态或非激活态内的信号检测。
  17. 一种信号传输装置,其特征在于,该装置包括:
    存储器,用于存储程序指令;
    处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
    确定为终端配置的参考信号传输资源;
    通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
  18. 根据权利要求17所述的装置,其特征在于,通过预先约定和/或高层信令和/或动态信令,为终端配置所述传输资源。
  19. 根据权利要求17所述的装置,其特征在于,当终端处于连接态时为终端配置所述传输资源,或者在空闲态或非激活态下利用通过控制资源集合CORESET#0或搜索空间search space#0承载的物理下行控制信道PDCCH调度所述传输资源的配置信息。
  20. 根据权利要求17所述的装置,其特征在于,为预设的多个小区配置相同的所述传输资源。
  21. 根据权利要求17所述的装置,其特征在于,仅为一个小区配置所述传输资源;
    所述处理器还用于:接收连接态终端发送的参考信号传输资源请求,所述传输资源是根据所述请求为终端配置的。
  22. 根据权利要求17所述的装置,其特征在于,预先与终端协商确定预设规则,当满足所述预设规则时,在所述传输资源上发送所述参考信号给所述终端。
  23. 根据权利要求22所述的装置,其特征在于,所述预设规则包括:
    当基站在周期发送机会上有信号发送时,发送与该信号对应的参考信号。
  24. 根据权利要求17所述的装置,其特征在于,通过为终端配置的专用RRC信令,为终端配置所述传输资源,所述RRC信令在终端处于空闲态或非激活态时生效。
  25. 根据权利要求17所述的装置,其特征在于,所述参考信号的传输资 源,与空闲态或非激活态下终端的信号传输资源,存在预设关系。
  26. 根据权利要求17所述的装置,其特征在于,所述传输资源包含在CORESET#0或初始宽带部分initial BWP的频域资源内,或者,不包含在CORESET#0或初始宽带部分initial BWP的频域资源内。
  27. 根据权利要求17所述的装置,其特征在于,当所述传输资源不包含在CORESET#0或初始宽带部分initial BWP的频域资源内时,所述传输资源满足如下条件之一或组合:
    所述传输资源与CORESET#0或initial BWP频率偏差小于预设值;
    所述传输资源与CORESET#0或initial BWP存在至少一个资源单元RE的重合;
    所述传输资源位于基站为处于连接态时的终端配置的专用BWP上;
    所述传输资源与空闲态或非激活态下终端的同步信号块SSB相关联。
  28. 根据权利要求17所述的装置,其特征在于,所述处理器还用于:
    通过显式信令或者隐式信令在终端处于连接态时,通知终端是否为该终端配置了空闲态或非激活态下的参考信号传输资源。
  29. 一种信号传输装置,其特征在于,该装置包括:
    存储器,用于存储程序指令;
    处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
    确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
    当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
  30. 根据权利要求29所述的装置,其特征在于,通过预先约定和/或高层信令和/或动态信令,获知网络侧为终端配置的所述传输资源。
  31. 根据权利要求29所述的装置,其特征在于,预先与网络侧协商确定预设规则,当满足所述预设规则时,在所述传输资源上接收所述参考信号。
  32. 根据权利要求29所述的装置,其特征在于,如果检测到参考信号, 则进一步执行空闲态或非激活态内的信号检测,否则放弃后续的与所述传输资源相关联的空闲态或非激活态内的信号检测。
  33. 一种信号传输装置,其特征在于,该装置包括:
    确定单元,用于确定为终端配置的参考信号传输资源;
    发送单元,用于通过所述传输资源,为处于空闲态或非激活态或连接态非激活期的终端发送参考信号。
  34. 一种信号传输装置,其特征在于,该装置包括:
    确定单元,用于确定网络侧为终端配置的空闲态或非激活态或连接态非激活期内的参考信号传输资源;
    接收单元,用于当终端处于空闲态或非激活态或连接态非激活期内时,通过所述传输资源接收参考信号。
  35. 一种计算设备,其特征在于,包括:
    存储器,用于存储程序指令;
    处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行权利要求1至16任一项所述的方法。
  36. 一种计算机存储介质,其特征在于,所述计算机存储介质存储有计算机可执行指令,所述计算机可执行指令用于使所述计算机执行权利要求1至16任一项所述的方法。
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