WO2022143808A1 - Procédé et dispositif pour mise en correspondance de taux - Google Patents

Procédé et dispositif pour mise en correspondance de taux Download PDF

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Publication number
WO2022143808A1
WO2022143808A1 PCT/CN2021/142672 CN2021142672W WO2022143808A1 WO 2022143808 A1 WO2022143808 A1 WO 2022143808A1 CN 2021142672 W CN2021142672 W CN 2021142672W WO 2022143808 A1 WO2022143808 A1 WO 2022143808A1
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WIPO (PCT)
Prior art keywords
reference signal
available
rate matching
information
paging
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PCT/CN2021/142672
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English (en)
Chinese (zh)
Inventor
李东儒
吴凯
李娜
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维沃移动通信有限公司
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Publication of WO2022143808A1 publication Critical patent/WO2022143808A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application belongs to the field of communication technologies, and specifically relates to a rate matching method and device (the device may include a rate matching apparatus and a terminal).
  • a tracking reference signal Tracking Reference Signal, TRS
  • Channel state information reference signal Channel state information reference signal
  • RRC Radio Resource Control
  • CSI-RS State Information-Reference Signal
  • PDSCH Physical Downlink Shared Channel
  • the embodiments of the present application provide a rate matching method and device, which can solve the problem that a terminal cannot determine whether PDSCH rate matching can be performed for a reference signal resource in a non-connected state, which affects the reliability and effectiveness of communication.
  • a first aspect provides a rate matching method, applied to a terminal, the method includes: acquiring first information, where the first information includes at least one of the following: information for determining whether a first reference signal is available, the first information A reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein, the first configuration information is used to configure the first reference signal; according to the first information, determine whether to Perform PDSCH rate matching on the first reference signal, where the first reference signal is configured to be used by a terminal in a non-connected state.
  • a rate matching apparatus including: an acquisition module configured to acquire first information, where the first information includes at least one of the following: information for determining whether a first reference signal is available, the first reference signal availability duration, the first reference signal unavailable duration, and first configuration information; wherein, the first configuration information is used to configure the first reference signal; a rate matching module is used to configure the first reference signal according to the first information to determine whether to perform PDSCH rate matching on the first reference signal, where the first reference signal is configured to be used by a rate matching apparatus in a non-connected state.
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor A method as described in the first aspect is implemented.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method according to the first aspect is implemented.
  • a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the When executed by the processor, the method as described in the first aspect is implemented.
  • a chip in a sixth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect .
  • the terminal acquires the first information, and the first information includes at least one of the following items: information for determining whether the first reference signal is available, the available duration of the first reference signal, the unavailable duration of the first reference signal, and the for configuring the first configuration information of the first reference signal; and determining whether to perform PDSCH rate matching on the first reference signal according to the first information, wherein the first reference signal is configured to be used by a terminal in a non-connected state.
  • This embodiment of the present application determines whether and when to perform PDSCH rate matching on the first reference signal resource according to the first information, thereby reducing unnecessary PDSCH caused by performing rate matching on the first reference signal even when the first reference signal is unavailable Resource overhead avoids inconsistent understanding of the PDSCH rate matching performed by the terminal and the network side device on the first reference signal, and improves the data transmission rate and system throughput.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a rate matching method according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a rate matching apparatus according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Next Generation Node B (gNB), Home Node B, Home Evolved Node B, WLAN Access point, WiFi node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. In the application embodiments, only the base station in the NR system is used as an example, but the specific type of the base station is not limited.
  • an embodiment of the present application provides a rate matching method 200, which can be executed by a terminal, in other words, the method can be executed by software or hardware installed in the terminal, and the method includes the following steps.
  • S202 Acquire first information, where the first information includes at least one of the following: information for determining whether the first reference signal is available, the available duration of the first reference signal, the unavailable duration of the first reference signal, and first configuration information.
  • the first reference signal mentioned in the various embodiments of this application may include at least one of the following: a tracking reference signal (Tracking Reference Signal, TRS), a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), a positioning reference Signals (Positioning Reference Signals, PRS).
  • the first reference signal resource may be configured through system information block (System Information Blocks, SIB) configuration and/or terminal-specific Radio Resource Control (Radio Resource Control, RRC) signaling (eg servingcellconfigcommon).
  • SIB System Information Blocks
  • RRC Radio Resource Control
  • the first reference signal is configured by at least one of SIB, RRC release (release), and RRC resume (resume) signaling.
  • the configuration information of the PRS may be acquired through a Positioning System Message (PosSIB).
  • the terminal types applicable to the embodiments of this specification include at least one of the following: a connected state terminal, an idle state (idle) terminal, and an inactive state (inactive) terminal.
  • the idle state and the inactive state are collectively referred to as a disconnected state.
  • the first reference signal is configured to be used by a terminal in a non-connected state.
  • the disconnected state means that the RRC is in a disconnected state.
  • the non-connected terminal may be an RRC idle terminal or an RRC inactive terminal.
  • the network side device is configured to share the TRS/CSI-RS originally used by the terminal in the RRC connected state with the terminal in the non-connected state.
  • the above-mentioned first configuration information is used to configure the first reference signal, and the first configuration information may be carried by at least one of the following signaling: SIB, and RRC related signaling.
  • the RRC related signaling may be one or more of dedicated RRC signaling, RRC release signaling, and RRC resume signaling.
  • the terminal may obtain the information for determining whether the first reference signal is available based on at least one of the following approaches: the terminal blindly checks whether the first reference signal is available; The network side device indicates whether the first reference signal is available; the terminal determines whether the first reference signal is available based on a preset condition (eg, whether a paging PDCCH is received).
  • a preset condition eg, whether a paging PDCCH is received
  • the available duration of the first reference signal may be indicated by an indication of an available duration of the first reference signal, or may be indicated by an indication of an unavailable duration of the first reference signal.
  • the time outside the available duration of the first reference signal may be the unavailable duration of the first reference signal; the time outside the unavailable duration of the first reference signal may be the available duration of the first reference signal.
  • the available duration of the first reference signal may include two contents: 1, indicating that the first reference signal is available; 2, indicating the available duration of the first reference signal.
  • the unavailable duration of the first reference signal may also include two contents: 1, indicating that the first reference signal is unavailable; 2, indicating the duration that the first reference signal is unavailable.
  • S204 Determine, according to the first information, whether to perform rate matching on a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) for the first reference signal, where the first reference signal is configured to be used by a terminal in a non-connected state.
  • a physical downlink shared channel Physical Downlink Shared Channel, PDSCH
  • the determination of whether to perform PDSCH rate matching on the first reference signal mentioned in the various embodiments of this specification may also be referred to as: determining whether the resource occupied by the first reference signal can be used for PDSCH transmission. Specifically, for example, when it is determined to perform PDSCH rate matching on the first reference signal, the resources occupied by the first reference signal cannot be used for PDSCH transmission; when it is determined not to perform PDSCH rate matching on the first reference signal, the resources occupied by the first reference signal Resources are available for PDSCH transmission.
  • whether to perform PDSCH rate matching on the first reference signal can be determined based on the first information, so as to flexibly and dynamically improve the utilization rate of the resources occupied by the first reference signal, reduce the resource overhead caused by the first reference signal for PDSCH transmission, and improve the system efficiency. throughput.
  • the step of performing PDSCH rate matching on the first reference signal may also be performed.
  • PDSCH rate matching when the terminal is in a connected state, PDSCH rate matching can be performed on the first reference signal; when the terminal is in a disconnected state, PDSCH rate matching can still be performed on the first reference signal .
  • the rate matching types of PDSCH may include two types: semi-static rate matching and dynamic rate matching. Which type of rate matching to use may be determined according to at least one of the following: terminal rate matching related capability, PDSCH type, network side device configuration, protocol agreement, and the like.
  • the terminal can only perform rate matching on the first reference signal through the semi-static PDSCH rate matching method.
  • the network-side device configuration or protocol stipulates that semi-static rate matching is performed for the above-mentioned first reference signal, and the terminal can only implement rate matching for the first reference signal in a semi-static rate matching manner.
  • the terminal acquires first information, where the first information includes at least one of the following: information for determining whether the first reference signal is available, the available duration of the first reference signal, and the unavailable duration of the first reference signal The time is used to configure the first configuration information of the first reference signal; and whether to perform PDSCH rate matching on the first reference signal is determined according to the first information, wherein the first reference signal is configured to be used by a terminal in a non-connected state.
  • the embodiments of the present application provide a solution for whether the terminal can perform PDSCH rate matching for the first reference signal resource, so as to avoid problems such as transmission and interference caused by inconsistent understanding between the terminal and the network side device, and improve communication reliability.
  • the resources occupied by the first reference signal can be used for PDSCH transmission. This further reduces the unnecessary PDSCH resource overhead caused by the rate matching of the first reference signal even when it is unavailable, and improves the data transmission rate and system throughput.
  • the embodiments of the present application can reduce the PDSCH resource overhead caused by performing PDSCH rate matching on the first reference signal, improve the data transmission rate and system throughput, and can also ensure that the terminal and the network side equipment can determine when and how to target the first reference signal.
  • a consistent understanding of PDSCH rate matching is performed to improve communication reliability.
  • the determining whether to perform PDSCH rate matching on the first reference signal according to the first information includes at least one of the following items :
  • the first reference signal If the first reference signal is available, it is determined to perform PDSCH rate matching on the first reference signal, that is, the resources occupied by the first reference signal cannot be used for PDSCH transmission.
  • the first reference signal is unavailable, it is determined not to perform PDSCH rate matching on the first reference signal, that is, the resources occupied by the first reference signal can be used for PDSCH transmission.
  • the above scheme according to whether the first reference signal can be used to determine whether to perform PDSCH rate matching on the first reference signal can solve the problem of still performing PDSCH rate matching when the first reference signal is unavailable (that is, not on the first reference signal resource). PDSCH transmission) and cause the problem of resource waste, and improve the system throughput.
  • the rate matching of PDSCH includes at least one of the following:
  • the available duration of the first reference signal may be used to determine the available duration of the first reference signal, and the time outside the available duration may be referred to as the unavailable duration; the first reference signal unavailable duration The time may be used to determine the unavailable duration of the first reference signal, and the time outside the unavailable duration may be referred to as the available duration.
  • the above scheme of determining whether to perform PDSCH rate matching on the first reference signal according to the available/unavailable duration of the first reference signal can solve the waste of resources caused by still performing PDSCH rate matching during the unavailable duration of the first reference signal problem, and effectively improve the system throughput.
  • the determining, according to the first information, whether to perform PDSCH rate matching on the first reference signal includes at least one of the following:
  • the first configuration information is received, determine to perform PDSCH rate matching on the first reference signal. For example, if the first configuration information is received in S202, then S204 may directly perform PDSCH rate matching on the first reference signal.
  • the first configuration information is not received, determine not to perform PDSCH rate matching on the first reference signal.
  • the terminal does not receive the first configuration information, it can be understood that the network-side device has not configured the first reference signal for it, and therefore does not need to perform PDSCH rate matching on the first reference signal.
  • the SIB is not configured with the first reference signal (eg, the first TRS/CSI-RS)
  • the rate matching of the PDSCH is not performed on the first TRS/CSI-RS.
  • the terminal directly determines whether to perform PDSCH rate matching based on whether the network-side device is configured with the first reference signal.
  • the available duration of the reference signal and the unavailable duration of the first reference signal indicate that the signaling overhead is reduced, but at the same time, this static configuration method increases the resource overhead of the first reference signal, which is not conducive to PDSCH transmission and system throughput. .
  • the foregoing three embodiments are all information to determine whether the first reference signal is available, the available duration of the first reference signal, the unavailable duration of the first reference signal, and the first configuration information, at least one of these four types of information. to determine whether to perform PDSCH rate matching on the first reference signal. In fact, two or more pieces of information can also be combined to determine whether to perform PDSCH rate matching on the first reference signal. See Embodiment 4 below. .
  • the determining whether to perform PDSCH rate matching on the first reference signal includes at least one of the following:
  • the first information may include both the first configuration information, the information for determining whether the first reference signal is available, and the indication of the available duration of the first reference signal. For example, if the terminal receives the first configuration information according to the above-mentioned first information and obtains the availability of the first reference signal and the indication of the available duration, the terminal performs PDSCH on the first reference signal within the available duration of the first reference signal. rate matching.
  • the PDSCH is scheduled by first downlink control information (Downlink Control Information, DCI), and the first DCI is scheduled by any one of the following Scrambling: System Information Radio Network Temporary Identifier (SI-RNTI), Paging Radio Network Temporary Identifier (P-RNTI), Temporary Cell Radio Network Temporary Identifier (TC-RNTI), Random Access Radio Network Temporary Identifier (RA) -RNTI), Message B Radio Network Temporary Identity (Msg.B-RNTI).
  • SI-RNTI System Information Radio Network Temporary Identifier
  • P-RNTI Paging Radio Network Temporary Identifier
  • TC-RNTI Temporary Cell Radio Network Temporary Identifier
  • RA Random Access Radio Network Temporary Identifier
  • Msg.B-RNTI Message B Radio Network Temporary Identity
  • the terminal when the terminal is in the RRC disconnected state, it can still be determined, according to the first information, whether to perform rate matching on the PDSCH scheduled by the first DCI for the first reference signal, that is, to determine the first reference signal. Whether the occupied resource can be used for PDSCH transmission scheduled by the first DCI.
  • the first reference signal configured by the network for measurement by the terminal in the non-connected state is TRS/CSI-RS.
  • the first information includes: first configuration information and information for determining whether the first reference signal is available.
  • the terminal When the terminal is in a disconnected state, after receiving the first configuration information, the terminal determines whether the TRS/CSI-RS resource can be used for the P-RNTI according to the received information for determining whether the first reference signal is available Transmission of scrambled PDSCH.
  • the effect of PDSCH rate matching can also be achieved by restricting the scheduling of network-side devices.
  • an uplink shared channel Physical Uplink Shared Channel, PUSCH
  • embodiment 200 when the first information includes the information for determining whether the first reference signal is available, embodiment 200 may further include: determining the first reference signal according to at least one of the following items it's usable or not:
  • determining whether the first reference signal is available includes: determining whether the first reference signal is available according to the paging PDCCH, for example, when the terminal is in a connected state, receiving the paging PDCCH, The paging PDCCH includes an indication of whether the first reference signal is available.
  • determining whether the first reference signal is available further includes: when the terminal is in a disconnected state, receiving the paging PDCCH, where the paging PDCCH includes an indication of whether the first reference signal is available .
  • the implicit condition of this example is that the terminal still needs to receive the paging PDCCH after the terminal enters the connected state, and the paging PDCCH indicates whether the first reference signal (eg TRS/CSI-RS) is available. In this way, the terminal can determine whether to perform PDSCH rate matching on the resources of the first reference signal according to the indication of whether the first reference signal in the paging PDCCH is available.
  • the first reference signal eg TRS/CSI-RS
  • the terminal when the terminal is in the RRC disconnected state, it must receive the paging PDCCH, and when the terminal is in the connected state, whether it needs to receive the paging PDCCH is configured according to the network side. If the network side device configures that the terminal in the connected state does not need to monitor the paging PDCCH, the information for determining whether the first reference signal is available cannot be obtained by paging the PDCCH.
  • determining whether the first reference signal is available according to the paging message includes: when the terminal is in a connected state, receiving the paging message, where the paging message includes the determining of the first reference signal. Information about whether the reference signal is available.
  • determining whether the first reference signal is available further includes: when the terminal is in a disconnected state, receiving the paging message, where the paging message includes an indication of whether the first reference signal is available .
  • the implicit condition of this example is that the terminal still needs to receive the paging message after entering the connected state, and the paging message indicates whether the first reference signal (eg TRS/CSI-RS) is available. In this way, the terminal can determine whether to perform PDSCH rate matching on the resources of the first reference signal according to the indication of whether the first reference signal is available in the paging message.
  • the first reference signal eg TRS/CSI-RS
  • the paging message can be understood as paging the PDSCH scheduled by the PDCCH.
  • the terminal When the terminal is in the RRC disconnected state, it needs to try to receive the paging message, and when the terminal is in the connected state, whether it needs to receive the paging message is configured according to the network side. If the network side device configures that the terminal in the connected state does not need to monitor the paging message, the indication of whether the first reference signal is available cannot be obtained through the paging message.
  • determining whether the first reference signal is available according to the paging advance indication includes: when the terminal is in a connected state, receiving the paging advance indication, where the paging advance indication includes the Indication of whether the first reference signal is available;
  • determining whether the first reference signal is available further includes: when the terminal is in a disconnected state, receiving the paging advance indication, where the paging advance indication includes whether the first reference signal is available Available instructions.
  • the implicit condition of this example is that the terminal still needs to receive the paging advance indication after entering the connected state, and the paging advance indication indicates whether the first reference signal (eg TRS/CSI-RS) is available. In this way, the terminal can determine whether to perform PDSCH rate matching on the resources of the first reference signal according to the indication of whether the first reference signal is available in the paging advance indication.
  • the first reference signal eg TRS/CSI-RS
  • the network side device configures the terminal in the connected state not to monitor the paging advance indication, the information for determining whether the first reference signal is available cannot be obtained through the paging advance indication.
  • the paging advance indication indicates whether to monitor the paging PDCCH.
  • the information for determining whether the first reference signal is available is implicitly obtained through the paging advance indication indicating whether to monitor the paging PDCCH.
  • the information for determining whether the first reference signal is available is to determine whether the first reference signal is available in the connected state or the disconnected state according to whether the terminal is in the connected state or the disconnected state.
  • determining whether the first reference signal is available according to whether the paging advance indication indicates whether to monitor the paging PDCCH includes at least one of the following: if the paging advance indication indicates to monitor the paging PDCCH, determine the first reference signal. A reference signal is available; if the paging advance indication indicates that the paging PDCCH is not to be monitored, it is determined that the first reference signal is not available.
  • the network side equipment configures the connected terminal not to monitor the paging advance indication, the information to determine whether the first reference signal is available cannot be implicitly obtained through the paging advance indication indicating whether to monitor the paging PDCCH.
  • Radio Resource Control Radio Resource Control, RRC
  • Media Access Control-Control Element Media Access Control-Control Element, MAC CE
  • determining whether the first reference signal is available according to the RRC or the MAC CE includes: when the terminal is in a connected state, receiving the RRC or the MAC CE, the RRC or the MAC CE includes an indication of whether the first reference signal is available.
  • this example may use RRC or MAC CE to indicate whether the connected state terminal can use the first reference signal configured for the non-connected state terminal.
  • the terminal determines whether to perform PDSCH rate matching on the resources of the first reference signal by receiving an indication of whether the first reference signal carried in the RRC or MAC CE is available.
  • This example can be applied to the network side device configuration connected state The terminal does not need to receive paging PDCCH, paging advance indication or paging message.
  • the network side device configuration or protocol agreement configures the first reference signal used in the disconnected state as a semi-static first reference signal resource used by the connected state terminal, and activates or deactivates it through MAC CE signaling The above-mentioned semi-static first reference signal.
  • the effective delay of the first reference signal is different from that of the first reference signal configured to be used in the connected state.
  • the terminal in the connected state switches the BWP, the terminal needs to receive the new MAC-CE signaling for activation or deactivation of the first reference signal.
  • DCI format 2_0 indicates that the first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol, and the first semi-static flexible symbol is configured with the first reference signal.
  • the DCI indicates that uplink channel or signal transmission is performed on the first semi-static flexible symbol, where the first reference signal is configured on the first semi-static flexible symbol.
  • the first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol according to the DCI format 2_0 indication, or, according to the DCI indication, on the first semi-static flexible symbol
  • Performing at least one of uplink channel or signal transmission to determine whether the first reference signal is available includes: indicating in the DCI format 2_0 to set the first semi-static flexible symbol as a flexible symbol and/or an uplink symbol, or, the DCI In a case where at least one of uplink channel or signal transmission is indicated on the first semi-static flexible symbol, it is determined that the first reference signal is unavailable.
  • the semi-static flexible symbol is set as a flexible symbol or an uplink symbol, or, if received If the DCI indicates that uplink transmission is performed on the above-mentioned semi-static flexible symbol, it is determined that the first reference signal is no longer available.
  • the first reference signal mentioned in Embodiment 200 may also be used for at least one of the following: time-frequency synchronization, channel state information (Channel State Information, CSI) ) measurement, radio resource management (Radio Resource Management, RRM) measurement, radio link monitoring, beam failure detection, beam management, automatic gain control (Automatic Gain Control, AGC), fast secondary cell activation.
  • CSI Channel State Information
  • RRM Radio Resource Management
  • AGC automatic gain control
  • the first reference signal can be used for fast secondary cell activation by the terminal in the connected state.
  • Example 1 Whether the first reference signal can be used for the secondary cell activation measurement indication is added to at least one of the RRC, MAC CE, and PDCCH signaling carrying the secondary cell activation indication. It should be noted that the specific indication content of whether the added first reference signal can be used for the secondary cell activation measurement indication can be combined with the above-mentioned embodiments, according to the reception of the paging PDCCH or the paging advance indication or the paging message on the primary cell (PCell). to determine whether the first reference signal is available or not. For example, if the PDCCH received on the primary cell indicates that the first reference signal is available, the indication content of whether the first reference signal can be used for the secondary cell activation measurement indication is that the first reference signal can be used for secondary cell activation.
  • the first reference signal is used for secondary cell activation measurement. If whether the first reference signal is available for secondary cell activation measurement indicates that the first reference signal is not available for secondary cell activation or whether the first reference signal is available for secondary cell activation measurement indication is not received, the first reference signal is not used for secondary cell activation measurement Cell activation measurements.
  • Example 2 Define a new behavior: monitor the paging PDCCH or paging advance indication on the secondary cell.
  • the paging PDCCH or paging advance indication carries information to determine whether the first reference signal is available. If the first reference signal is determined to be available The availability information indicates that the first reference signal is available, then the first reference signal can be used for secondary cell activation measurement; if the information for determining whether the first reference signal is available indicates that the first reference signal is unavailable, the first reference signal cannot be used. Used for secondary cell activation measurement.
  • the terminal may also report whether it has the capability of performing secondary cell activation based on the first reference signal.
  • the first reference signal can be used for fast activation of the secondary cell by the terminal in the connected state, which can reduce the activation delay of the activation of the secondary cell and make the measurement of the secondary cell more accurate.
  • the execution body may be a rate matching apparatus, or a control module in the rate matching apparatus for executing the rate matching method.
  • a rate matching method performed by a rate matching apparatus is used as an example to describe the rate matching apparatus provided in the embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a rate matching apparatus according to an embodiment of the present application, and the apparatus may correspond to terminals in other embodiments. As shown in FIG. 3, the apparatus 300 includes:
  • the obtaining module 302 may be configured to obtain first information, where the first information includes at least one of the following items: information for determining whether a first reference signal is available, the first reference signal is available for a duration, and the first reference signal is unavailable with duration, first configuration information; wherein, the first configuration information is used to configure the first reference signal.
  • the rate matching module 304 may be configured to determine, according to the first information, whether to perform PDSCH rate matching on the first reference signal, where the first reference signal is configured to be used by a rate matching apparatus in a non-connected state.
  • the rate matching apparatus acquires the first information, and the first information includes at least one of the following: information for determining whether the first reference signal is available, the available duration of the first reference signal, the unavailable duration of the first reference signal, first configuration information for configuring the first reference signal; and determining whether to perform PDSCH rate matching on the first reference signal according to the first information, where the first reference signal is configured for use by a rate matching apparatus in a non-connected state.
  • the embodiments of the present application provide a solution for whether PDSCH rate matching can be performed for the first reference signal resource, so as to avoid problems such as transmission and interference caused by inconsistent understandings between the rate matching device and the network side equipment, and improve communication reliability.
  • the PDSCH rate matching may not be performed on the first reference signal, that is, the resources occupied by the first reference signal can be used for PDSCH transmission. This further reduces the unnecessary PDSCH resource overhead caused by the rate matching of the first reference signal even when the first reference signal is unavailable, and improves the data transmission rate and system throughput.
  • the rate matching module 304 is configured to perform at least one of the following:
  • the first reference signal is unavailable, it is determined not to perform rate matching on the PDSCH for the first reference signal.
  • the rate matching module 304 is used for the following: At least one:
  • the unavailability duration of the first reference signal it is determined not to perform PDSCH rate matching on the first reference signal.
  • the rate matching module 304 is configured to perform at least one of the following:
  • the first configuration information is not received, it is determined not to perform PDSCH rate matching on the first reference signal.
  • the rate matching module 304 is used for at least one of the following:
  • the unavailability duration of the first reference signal it is determined not to perform PDSCH rate matching on the first reference signal.
  • the PDSCH is scheduled by a first DCI, and the first DCI is scrambled by any one of the following:
  • SI-RNTI P-RNTI
  • TC-RNTI TC-RNTI
  • RA-RNTI Msg.B-RNTI.
  • the obtaining module 302 is configured to: determine the first reference signal according to at least one of the following items Is the reference signal available:
  • the paging advance indication indicates whether to monitor the paging PDCCH
  • DCI format 2_0 indicates that the first semi-static flexible symbol is set to a flexible symbol and/or an upstream symbol
  • DCI indicates upstream channel or signal transmission on the first semi-static flexible symbol
  • the first reference signal is configured on the first semi-static flexible symbol.
  • the obtaining module 302 is used for at least one of the following:
  • Determining whether the first reference signal is available according to the paging PDCCH includes: when the rate matching apparatus is in a connected state, receiving the paging PDCCH, where the paging PDCCH includes whether the first reference signal is available available instructions;
  • Determining whether the first reference signal is available according to the paging message includes: when the rate matching apparatus is in a connected state, receiving the paging message, where the paging message includes whether the first reference signal is available available instructions;
  • Determining whether the first reference signal is available according to the paging advance indication includes: when the rate matching apparatus is in a connected state, receiving the paging advance indication, where the paging advance includes the indication first Indication of whether the reference signal is available;
  • Determining whether the first reference signal is available according to the RRC or the MAC CE includes: when the rate matching apparatus is in a connected state, receiving the RRC or the MAC CE, where the RRC or the MAC CE includes Indicates whether the first reference signal is available.
  • the obtaining module 302 is used for at least one of the following:
  • the paging advance indication indicates monitoring of the paging PDCCH, determining that the first reference signal is available
  • the paging advance indication indicates that the paging PDCCH is not to be monitored, it is determined that the first reference signal is not available.
  • the first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol according to the DCI format 2_0 indication, or, according to the DCI indication, on the first semi-static flexible symbol Performing at least one of uplink channel or signal transmission to determine whether the first reference signal is available includes:
  • the DCI format 2_0 indicates that the first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol, or the DCI indicates that at least one of uplink channel or signal transmission is performed on the first semi-static flexible symbol In the case of , it is determined that the first reference signal is unavailable.
  • the first reference signal is used for at least one of the following:
  • Time-frequency synchronization Time-frequency synchronization, CSI measurement, RRM measurement, radio link monitoring, beam failure detection, beam management, AGC, fast secondary cell activation.
  • the first reference signal includes at least one of the following: TRS, CSI-RS, and PRS.
  • the rate matching apparatus in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the rate matching apparatus in this embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the rate matching apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiment in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • an embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, a program or instruction stored in the memory 402 and executable on the processor 401,
  • a communication device 400 including a processor 401, a memory 402, a program or instruction stored in the memory 402 and executable on the processor 401,
  • the communication device 400 is a terminal
  • the program or instruction is executed by the processor 401, each process of the foregoing rate matching method embodiment is implemented, and the same technical effect can be achieved.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510 and other components .
  • the terminal 500 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 5 does not constitute a limitation to the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 507 includes a touch panel 5071 and other input devices 5072 .
  • the touch panel 5071 is also called a touch screen.
  • the touch panel 5071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.
  • the radio frequency unit 501 receives the downlink data from the network side device, and then processes it to the processor 510; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 509 may be used to store software programs or instructions as well as various data.
  • the memory 509 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 509 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • ErasablePROM ErasablePROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 510.
  • the radio frequency unit 501 is configured to acquire first information, where the first information includes at least one of the following: information for determining whether the first reference signal is available, the available duration of the first reference signal, the first reference signal Unavailable duration, first configuration information; wherein, the first configuration information is used to configure the first reference signal; the processor 510 is configured to determine whether to configure the first reference signal according to the first information
  • the rate matching of the physical downlink control channel PDSCH is performed, wherein the first reference signal is configured to be used by a terminal in a non-connected state.
  • the terminal acquires the first information, and the first information includes at least one of the following items: information for determining whether the first reference signal is available, the available duration of the first reference signal, and the unavailable duration of the first reference signal, which is used for Configuring first configuration information of the first reference signal; and determining whether to perform PDSCH rate matching on the first reference signal according to the first information, where the first reference signal is configured for use by a terminal in a non-connected state.
  • the embodiments of the present application provide a solution for whether the terminal can perform PDSCH rate matching for the first reference signal resource, so as to avoid problems such as transmission and interference caused by inconsistent understanding between the terminal and the network side device, and improve communication reliability.
  • the resources occupied by the first reference signal can be used for PDSCH transmission. This further reduces the unnecessary PDSCH resource overhead caused by the rate matching of the first reference signal even when the first reference signal is unavailable, and improves the data transmission rate and system throughput.
  • the terminal 500 provided in this embodiment of the present application can also implement each process of the foregoing rate matching method embodiment, and can achieve the same technical effect. To avoid repetition, details are not described here.
  • Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing rate matching method embodiment can be achieved, and can achieve the same In order to avoid repetition, the technical effect will not be repeated here.
  • the processor may be the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above rate matching method embodiments.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is configured to run a program or an instruction to implement the above rate matching method embodiments.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande divulguent un procédé et un dispositif de mise en correspondance de taux. Le procédé peut être appliqué à un terminal, et consiste à obtenir des premières informations, les premières informations comprenant au moins l'un des éléments suivants : des informations pour déterminer si un premier signal de référence est disponible, une durée pendant laquelle le premier signal de référence est disponible, une durée pendant laquelle le premier signal de référence n'est pas disponible, et des premières informations de configuration, les premières informations de configuration étant utilisées pour configurer le premier signal de référence ; et à déterminer, selon les premières informations, s'il faut effectuer une mise en correspondance de taux de PDSCH sur le premier signal de référence, le premier signal de référence étant configuré pour être utilisé par un terminal non connecté.
PCT/CN2021/142672 2020-12-29 2021-12-29 Procédé et dispositif pour mise en correspondance de taux WO2022143808A1 (fr)

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