WO2023051506A1 - Appareil et procédé d'indication de faisceau, et terminal - Google Patents

Appareil et procédé d'indication de faisceau, et terminal Download PDF

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Publication number
WO2023051506A1
WO2023051506A1 PCT/CN2022/121621 CN2022121621W WO2023051506A1 WO 2023051506 A1 WO2023051506 A1 WO 2023051506A1 CN 2022121621 W CN2022121621 W CN 2022121621W WO 2023051506 A1 WO2023051506 A1 WO 2023051506A1
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WIPO (PCT)
Prior art keywords
channel
reference signal
signaling
information
terminal
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PCT/CN2022/121621
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English (en)
Chinese (zh)
Inventor
王臣玺
孙鹏
杨宇
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维沃移动通信有限公司
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Publication of WO2023051506A1 publication Critical patent/WO2023051506A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present application belongs to the technical field of mobile communication, and in particular relates to a beam indicating method, device and terminal.
  • the network side can make beam indications for downlink and uplink channels or reference signals, which are used to establish beam links between the network and UE to realize the transmission of channels or reference signals.
  • R17 beam indication There are two ways of R17 beam indication: one is to follow the R15/16 beam indication legacy TCI, including transmission configuration indication (Transmission Configuration Indication, TCI) state (state)/spatial relation (spatial relation); the other is unified Transport configuration indication (unified TCI).
  • a terminal also called user equipment (User Equipment, UE)
  • User Equipment User Equipment
  • the beam indication is divided into two parts, in which UE can be used to receive/send non-UE-dedicated (non-UE-dedicated) channels/reference signals according to the R15 TCI state activated/indicated by the network, and according to the network activated/indicated
  • the R17 unified TCI associated with the target cell corresponding to the PCI different from the PCI of the current cell is used to receive/send the terminal-dedicated (UE-dedicated) channel or reference signal.
  • the terminal cannot determine or update the channel and/or reference signal beam information, so that the transmission of the channel or reference signal fails, affecting the reliability of data transmission.
  • Embodiments of the present application provide a beam indication method, device, and terminal, which can solve the problem that the terminal cannot determine or update channel and/or reference signal beam information, so that the transmission of the channel or reference signal fails and affects the reliability of data transmission.
  • a beam indication method which is applied to a terminal, and the method includes:
  • the terminal receives signaling including beam indication information
  • the terminal determines or updates beam information of the first channel and/or reference signal according to a preset rule.
  • a beam indicating device including:
  • a receiving module configured to receive signaling including beam indication information
  • the execution module is configured to determine or update beam information of the first channel and/or reference signal according to preset rules according to the signaling.
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
  • 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, the steps of the method as described in the first aspect are implemented.
  • a chip in a fifth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect A step of.
  • a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the first aspect The steps of the method.
  • the terminal determines or updates the beam information of the first channel and/or the reference signal according to the preset rules according to the signaling containing the beam indication information for receiving and/or transmitting, Therefore, the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal, and improve the reliability of data transmission.
  • FIG. 1 shows a schematic structural diagram of a wireless communication system to which an embodiment of the present application is applicable
  • FIG. 2 shows a schematic flowchart of a beam indicating method according to an embodiment of the present application
  • Fig. 3 shows another schematic flow chart of the beam indicating method according to the embodiment of the present application
  • FIG. 4 shows a schematic diagram of several MAC CEs carrying beam indication information in the beam indication method of the embodiment of the present application
  • FIG. 5 shows a schematic diagram of the effective time of the beam indication information in the embodiment of the present application
  • FIG. 6 shows another schematic flowchart of the beam indicating method according to the embodiment of the present application.
  • FIG. 7 shows another schematic diagram of the effective time of the beam indication information according to the embodiment of the present application.
  • FIG. 8 shows another schematic flowchart of the beam indicating method according to the embodiment of the present application.
  • FIG. 9 shows another schematic diagram of the effective time of the beam indication information according to the embodiment of the present application.
  • Fig. 10 shows a schematic structural diagram of a beam indicating device provided by an embodiment of the present application.
  • FIG. 11 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal implementing an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are 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 for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a schematic structural diagram of a wireless communication system to which this embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, 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: smart watches, bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (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 terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • the embodiment of the present application provides a beam indicating method
  • the execution subject of the beam indicating method may be a terminal, in other words, the method may be executed by software or hardware installed in the terminal, and the method includes the following steps .
  • Step S210 the terminal receives signaling including beam indication information
  • Step S220 according to the signaling, the terminal determines or updates the beam information of the first channel and/or reference signal according to preset rules for receiving and/or sending.
  • the terminal When the terminal receives signaling containing beam indication information under different beam indication signaling mechanisms, it will use preset rules to determine or update the beam of the first channel and/or reference signal according to the signaling containing beam indication information information, and establish a beam link with the network side according to the determined or updated beam information, so as to realize the transmission of the first channel and/or reference signal.
  • the preset rules can be varied according to actual needs, and can be used to determine which beam indication mechanism or beam indication signaling mechanism to use, or which beam indication to use for different first channels and/or reference signals mechanism or beam indication signaling mechanism, or determine or update which signaling including beam indication information is adopted for different first channels and/or reference signals, or, for various received beam indication information
  • the signaling preferably uses which signaling includes the beam indication information to determine or update.
  • the form of the signaling including the beam indication information is one of the following signaling forms:
  • Radio Resource Control signaling (Radio Resource Control, RRC);
  • MAC CE Media Access Control Element signaling
  • DCI Downlink Control Information
  • the first channel and/or reference signal includes at least one of the following:
  • Non-UE-dedicated channels and/or reference signals are Non-UE-dedicated channels and/or reference signals
  • Non-terminal dedicated downlink (DL Non-UE-dedicated) channel and/or reference signal DL Non-UE-dedicated channel and/or reference signal
  • the Non-UE-dedicated channel and/or reference signal includes at least one of the following:
  • Non-UE-dedicated control resource set Control resource set, CORESET
  • PDCCH Physical downlink control channel
  • the channels related to PDCCH scheduling include at least one of the following:
  • a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) scheduled by the PDCCH;
  • the PUCCH where the feedback information corresponding to the PUSCH scheduled by the PDCCH is located is located.
  • the Non-UE-dedicated CORESET is at least one of the following:
  • the associated search space set (Search Space set, SS set) is the control resource set of the common search space set (Common Search Space set, CSS set);
  • Control resource set 0 (CORESET#0).
  • the beam indication information includes at least one of the following types:
  • various types of beam indication information include at least one of the following beam information:
  • Transmission Configuration Indicator state (Transmission Configuration Indicator state, TCI state), where TCI is the legacy TCI state defined by R15/16;
  • Joint Transmission Configuration Indication (joint TCI);
  • DL TCI Downlink Transmission Configuration Indication
  • Uplink Transmission Configuration Indication (UL TCI).
  • the joint TCI, DL TCI and UL TCI all belong to the unified TCI architecture.
  • the unified TCI can adopt two schemes, one is joint TCI, that is, the uplink and downlink use one beam uniformly; the other is separate transmission configuration indication (separate TCI), indicating information by a pair of beams, one for the DL TCI applied to the downlink and one for the UL TCI applied to the uplink.
  • the target cell is a cell corresponding to a PCI different from the physical cell identifier (Physical Cell Identifier, PCI) of the current cell, and the current cell is the current serving cell.
  • PCI Physical Cell Identifier
  • the beam indication information directly associated with the target cell includes at least one of the joint TCI, DL TCI or UL TCI directly associated with the cell corresponding to the PCI different from the PCI of the current cell, specifically, it may refer to the beam indication information in the beam indication information
  • the quasi co-location (Quasi co-location, QCL) resource reference signal (resource Reference Signal, RS) in the TCI state is associated with the cell corresponding to the PCI different from the PCI of the current cell.
  • the beam indication information indirectly associated with the target cell includes at least one of joint TCI, DL TCI, or UL TCI indirectly associated with a cell corresponding to a PCI different from the PCI of the current cell, and may specifically refer to beam indication information
  • the QCL resource RS in the TCI state in the QCL resource RS in the TCI state is associated with the cell corresponding to the PCI different from the PCI of the current cell.
  • the beam indication information associated with the target cell satisfies at least one of the following:
  • Including or associating the indication of the relevant information of the target cell for example, determining the cell information of the target cell associated with the TCI indicated by the network in the form of bit mapping.
  • the beam indication information not associated with the target cell may include at least one of the joint TCI, DL TCI or UL TCI of a cell corresponding to a PCI different from the PCI of the current cell, and may also include not associated with the PCI of the current cell.
  • the not being associated with the target cell may specifically include the following two situations:
  • the default association relationship can be specifically not associated with the TCI of the cell corresponding to the PCI different from the PCI of the current cell;
  • the terminal receives the signaling containing the beam indication information; the terminal determines or updates the first channel and/or the reference signal according to the preset rules according to the signaling.
  • the beam information is used for receiving and/or sending, so that the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal, and improve the reliability of data transmission.
  • the steps S210-S220 may include:
  • Step S310 the terminal receives first signaling carrying beam indication information.
  • the first signaling refers to MAC CE signaling received when the first beam indication signaling mechanism is adopted.
  • the first beam indication signaling mechanism may also be expressed as an only MAC CE beam indication signaling mechanism, which means that both legacy TCI and unified TCI indicate beam information only through MAC CE signaling.
  • the method may also include:
  • the terminal determines or switches the beam indication signaling mechanism according to the signaling including the beam indication information, and performs the following steps when it is determined to adopt the first beam indication signaling mechanism.
  • Step S320 the terminal determines or updates the first beam information of the first channel and/or reference signal according to the first preset rule according to the first signaling.
  • the first beam information according to before the UE-dedicated channel and/or reference signal starts to transmit determine the joint TCI in the first signaling carrying the joint TCI that is closest to the first symbol of the UE-dedicated channel and/or the reference signal and is effective;
  • the first beam information starts transmission according to the DL UE-dedicated channel and/or reference signal Previously, the DL TCI in the first signaling carrying the DL TCI that is nearest to the first symbol of the DL UE-dedicated channel and/or the reference signal and is in effect is determined;
  • the first beam information is based on the UL UE-dedicated channel and/or reference signal before transmission starts , determining the UL TCI in the first signaling carrying the UL TCI that is nearest to the first symbol of the UL UE-dedicated channel and/or reference signal and is effective;
  • the first beam information or part of the first beam information is based on the DL Non-UE-dedicated Before the transmission of the channel and/or reference signal starts, the beam indication information in the second signaling that is closest to the first symbol of all or part of the DL Non-UE-dedicated channel and/or reference signal and takes effect is determined;
  • the beam indication information in the second signaling includes at least one of the following:
  • the TCI state here is the legacy TCI state of R15/16.
  • the entry into force refers to one of the following situations:
  • the beam information carried in the signaling can only work after a preset time, such as Y symbols or X ms, after the Hybrid automatic repeat request acknowledgment (HARQ-ACK) feedback of the channel carrying the signaling ;
  • HARQ-ACK Hybrid automatic repeat request acknowledgment
  • the beam information carried in the signaling can work only after a preset time, for example, Y symbols, after the last symbol of the channel carrying the signaling.
  • the preset time such as Y symbols or X ms, may be determined by the network side according to the capability of the terminal.
  • the form of the first signaling under the first beam indication signaling mechanism may include five MAC CE signaling formats as shown in FIG. 4 .
  • MAC CE#1 is the MAC CE signaling format of legacy TCI state carrying TCI state#1, and MAC CE#2 ⁇ 5 are MAC CE formats of unified TCI.
  • the joint TCI carried in MAC CE#2 is not associated with the current serving cell or service transmission and reception point (Transmission and Reception Point, TRP); the UL TCI and DL TCI carried in MAC CE#3 are both associated with the current serving cell or service TRP;
  • MAC CE#4 carries DL TCI associated with the target cell or target TRP, and MAC CE#5 carries UL TCI and DL TCI associated with the target cell or target TRP.
  • the PCI#1 is the PCI of the target cell.
  • the actual MAC CE signaling may not carry PCI, and the PCI#1 in the brackets of MAC CE#2 indicates that the joint TCI can Associate the target cell.
  • the arrival time of the MAC CE carrying different beam indications for the above five types, the time for replying to the corresponding HARQ-ACK feedback, and the valid time of each MAC CE are shown in Figure 5.
  • the above five types Under the MAC CE carrying different beam indication information, the channel and/or beam information changes of the reference signal at different times are shown in Table 1 below.
  • A is a certain moment after t14.
  • the beam information of all channels and/or reference signals can be determined according to the default beam mechanism and the initial access of the terminal SSB correlation of the current serving cell;
  • TCI state#1 carried in MAC CE#1 takes effect at t10, but since TCI state#1 is only applicable to non-UE-dedicated channels and/or reference signals, UE-dedicated channels and /or the beam information of the reference signal remains unchanged for a period of time, and is related to the SSB of the terminal's initial access to the current serving cell;
  • TCI state-r17#2 The beam information TCI state-r17#2 carried in MAC CE#2 takes effect at t11. Since TCI state-r17#2 is a joint TCI and is not associated with the target cell, it is applicable to all channels and/or Reference signal, the beam information of all channels and/or reference signals are updated to TCI state-r17#2;
  • TCI state-r17#5 The beam information UL TCI—TCI state-r17#5 and DL TCI—TCI state-r17#6 carried in MAC CE#4 take effect at t13. Since TCI state-r17#5 is associated with the target cell, So TCI state-r17#5 applies only to UL UE-dedicated channels and/or reference signals, while TCI state-r17#6 applies to all DL channels and/or reference signals, so UL UE-dedicated channels and/or reference signals The beam information of all DL channels and/or reference signals is updated to TCI state-r17#5, the beam information of UL non-UE-dedicated channels and/or reference signals remains unchanged, and the beam information of all DL channels and/or reference signals is updated to TCI state-r17 #4;
  • the beam information of UL UE-dedicated channel and/or reference signal is updated to TCI state-r17#7
  • the beam information of DL UE-dedicated channel and/or reference signal is updated to TCI state-r17#8, all non-UE -
  • the beam information of the dedicated channel and/or reference signal remains unchanged;
  • the terminal under the only MAC CE beam indication signaling mechanism, according to receiving the first signaling carrying beam indication information; the terminal according to the first signaling , determine or update the first beam information of the first channel and/or reference signal according to the first preset rule, so that the terminal can accurately determine or update the channel and/or reference signal beam under the only MAC CE beam indication signaling mechanism information to achieve accurate transmission of channel and/or reference signals and improve the reliability of data transmission.
  • steps S210-S220 further include:
  • Step S610 the terminal receives fourth signaling and fifth signaling carrying beam indication information.
  • the fourth signaling and the fifth signaling are MAC CE signaling as the fourth signaling and DCI signaling as the fifth signaling received under the second beam indication signaling mechanism.
  • the second beam indication signaling mechanism can also be expressed as only MAC CE+DCI beam indication signaling mechanism, which refers to indicating beam information through MAC CE+DCI, specifically, multiple beam indication information can be activated by MAC CE signaling.
  • a beam information set is obtained from TCI codepoints, and then the beam indication information contained in the DCI is used to determine one of the TCI codepoints from the beam information set to determine the beam information.
  • the method also includes:
  • the terminal determines or switches the beam indication signaling mechanism according to the signaling including the beam indication information, and performs the following steps when it is determined to adopt the second beam indication signaling mechanism.
  • Step S620 the terminal determines or updates the second beam information of the first channel and/or the reference signal according to the second preset rule according to the fourth signaling and the fifth signaling.
  • the second preset rule includes:
  • the beam indication information in the fourth signaling that carries the beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal
  • the beam indication information in the fifth signaling that carries the beam indication information and takes effect and is closest to the first symbol of the first channel and/or reference signal before the transmission of the first channel and/or reference signal starts , determining second beam information of the first channel and/or reference signal in the beam information set of the first channel and/or reference signal;
  • the second channel and/or reference signal is one of the following:
  • the determining the beam information set of the first channel and/or reference signal according to the beam indication information in the effective fourth signaling includes:
  • the beam indication information in the fourth signaling that carries the first beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal Determine the first beam information set of the UE-dedicated channel and/or reference signal; wherein the first beam indication information includes at least one of the following: joint TCI, DL TCI and UL TCI;
  • the beam indication information in the fourth signaling that carries the second beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal
  • the second beam indication information includes at least one of the following: TCI state; spatial relation; joint TCI not associated with the target cell; not associated with the target cell DL TCI associated with the target cell; UL TCI not associated with the target cell.
  • the first channel and/or reference signal of the first channel and/or reference signal is determined in the beam information set of the first channel and/or reference signal Two-beam information, including at least one of the following:
  • the second beam information is based on the first beam transmitted from the UE-dedicated channel and/or reference signal
  • the TCI corresponding to the TCI codepoint corresponding to the TCI field in the fifth signaling that is the most recent and effective for the symbols is determined by the corresponding TCI in the first beam information set;
  • the second beam information is transmitted according to the distance from the DL UE-dedicated channel and/or reference signal
  • the TCI codepoint corresponding to the TCI field in the fifth signaling that is the most recent and valid for the first symbol is determined in the corresponding DL TCI in the first beam information set;
  • the second beam information is transmitted according to the distance from the UL UE-dedicated channel and/or reference signal
  • the UL TCI corresponding to the TCI codepoint corresponding to the TCI field in the fifth signaling that is the most recent and valid for the first symbol in the first beam information set is determined;
  • the second beam information or part of the second beam information is based on the distance from the DL non-UE -
  • the beam information corresponding to the TCI codepoint corresponding to the TCI field in the fifth signaling in the latest and effective fifth signaling of the dedicated channel and/or the first symbol of the reference signal transmission is determined in the second beam information set.
  • TCI state where the TCI state is the legacy TCI state of R15/16;
  • the second beam indication signaling mechanism means that both legacy TCI state and unified TCI indicate beam information only through MAC CE+DCI. It is assumed that the effective time of the corresponding relationship between TCI codepoints and TCI states activated by the MAC CE is the Xms time after the time slot occupied by the HARQ-ACK corresponding to the PDSCH carrying the MAC CE, for example, the first time slot after 3 ms; In consideration of the time for PDCCH decoding and beam switching by hardware devices, the beam information determined by the DCI can only take effect after Y symbols after the last symbol of the PDCCH. Table 2, Table 3, and Table 4 below show the formats of three fourth signalings, which are MAC CE#1 signaling, MAC CE#2 signaling, and MAC CE#3 signaling.
  • MAC CE#1 carries the beam indication information of legacy TCI state
  • MAC CE#2 carries the beam indication information of unified TCI and the TCI in part of the TCI codepoint is associated with PCI#1, that is, associated with the target cell
  • MAC CE# Carries the beam indication information of unified TCI and the TCI in all TCI codepoints is associated with PCI#1.
  • the first column in Table 3 and Table 4 is UL TCI
  • the second column is DL TCI.
  • the arrival time and effective time of each MAC CE and DCI are given, and the second beam information method of the first channel and/or reference signal is determined or updated according to the second preset rule or includes the following two :
  • Mode 1 Determine the TCI codepoint according to the DCI that is closest to the first symbol of the first channel or reference signal and takes effect before the first channel or reference signal starts to transmit, and the corresponding TCI state in the TCI codepoint is based on the Before the PDCCH of the above-mentioned DCI starts to transmit, the beam information in the TCI codepoints carried in the first effective MAC CE from the PDCCH is determined.
  • the channels and/or Or the change of the waveform information of the reference signal is as shown in Table 5 below.
  • Method 2 Determine the TCI codepoint according to the DCI closest to the first symbol of the first channel or reference signal and effective before the first channel or reference signal starts to transmit, and the TCI state contained in the TCI codepoint is based on the first symbol of the first channel or reference signal. Before the transmission of the channel or reference signal starts, the beam information in the TCI codepoints carried in the effective MAC CE closest to the first symbol of the first channel or reference signal is determined.
  • the channels and/or Or the change of the waveform information of the reference signal is as shown in Table 6 below.
  • the terminal Under the only MAC CE+DCI beam indication signaling mechanism, according to receiving the fourth signaling and the fifth signaling carrying beam indication information; the terminal According to the fourth signaling and the fifth signaling, determine or update the second beam information of the first channel and/or reference signal according to the second preset rule, so that the terminal can indicate signaling in only MAC CE+DCI beam Under the mechanism, accurately determine or update channel and/or reference signal beam information to realize accurate transmission of channel and/or reference signal and improve the reliability of data transmission.
  • the steps S210-S220 further include:
  • Step S810 the terminal receives the first signaling, the fourth signaling and the fifth signaling carrying beam indication information.
  • the first signaling is MAC CE signaling received when the first beam indication signaling mechanism is adopted, and the first beam indication signaling mechanism is an only MAC CE mechanism.
  • the fourth signaling and the fifth signaling are the received MAC CE signaling as the fourth signaling and the DCI signaling as the fifth signaling when the second beam indication signaling mechanism is adopted, so
  • the second beam indication signaling mechanism is the MAC CE+DCI beam indication signaling mechanism.
  • the method may also include:
  • the terminal determines or switches the beam indication signaling mechanism according to the signaling containing the beam indication information, and when it is determined to use the first beam indication signaling mechanism and the second beam indication signaling mechanism at the same time, that is, for different beams
  • the indication mode adopts different beam indication signaling mechanisms, for example, the first beam indication signaling mechanism is adopted for legacy TCI state, and the second beam indication signaling mechanism is adopted for unified TCI, and the following steps are performed.
  • Step S820 the terminal determines or updates third beam information of the first channel and/or reference signal according to a third preset rule according to the first signaling, the fourth signaling and the fifth signaling.
  • the third preset rule includes at least one of the following:
  • the third beam information is determined by determining or updating the first beam information of the first channel and/or reference signal according to the first preset rule according to the first signaling;
  • the third beam information is determined by determining or updating the second beam information of the first channel and/or reference signal according to the second preset rule according to the fourth signaling and the fifth signaling;
  • the third beam information is determined for the beam information whose effective time is closest to the target symbol of the first channel and/or reference signal among the first beam information and the second beam information.
  • MAC CE#1 is a TCI carrying legacy TCI state indication information, as shown in MAC CE#1 in Figure 4
  • MAC CE#2 is TCI codepoints carrying multiple unified TCI indication information, as shown in Table 3 above Indicates that DCI#0 determines a TCI codepoint from multiple TCI codepoints indicated by MAC CE#2.
  • beam information of different channels and/or reference signals at different times may be determined as follows. Take [t4, t7] and [t7, A] as an example.
  • the effective beam information in the current time period is TCI state#1, and according to the MAC CE+DCI beam indication signaling mechanism
  • the multiple TCI codepoint information carried by the MAC CE takes effect at t5
  • the DCI signaling has not been detected or taken effect, so no unified TCI takes effect.
  • the combination of the two mechanisms judges that the effective beam information in the current time period is TCI state#1. Therefore, the beam information of DL non-UE-dedicated PDCCH in the current period will be determined according to TCI state#1, while the beam information of other channels and/or reference signals is determined according to the default beam mechanism.
  • TCI state-r17#1 Since TCI state-r17#1 is closest to the first symbol of all channels or signals in the current period and is not associated with the joint TCI of the target cell to indicate the beam information of all channels, the beam information of all channels will be Determined according to TCI state-r17#1; if the value of the TCI field in DCI#0 is 3, the second beam information effective in the current time period is separate TCI—(UL TCI:TCI state-r17#6, associated PCI DL for #1:TCI state-r17#7).
  • the UL channel and/or reference signal For the UL channel and/or reference signal, since the available beam information is not indicated in MAC CE#1, the current time period, the UL channel and/or reference signal is determined according to TCI state-r17#6; for the DL channel and/or Reference signal, although TCI state-r17#7 is the latest effective beam information, but because it is associated with the target cell, it can only determine the beam information of DL UE-dedicated channel and/or reference signal in the current time period. The beam information of DL non-UE-dedicated channel and/or reference signal can continue to be determined according to TCI state#1, or determined according to the default beam mechanism.
  • the terminal determines or updates the first channel and/or the reference signal according to the third preset rule according to the first signaling, the fourth signaling and the fifth signaling.
  • the third beam information so that the terminal can accurately determine or update the channel and/or reference signal beam information to realize the channel and/or reference signal while using the first beam indication signaling mechanism and the second beam indication signaling mechanism.
  • the accurate transmission of signals improves the reliability of data transmission.
  • step S210 further includes:
  • the terminal determines the beam information of the first channel and/or the reference signal according to a default (default beam indication).
  • the first condition includes at least one of the following:
  • the terminal Before the first symbol of the first channel and/or reference signal transmission, the terminal has not received the signaling carrying beam indication information; specifically, it may include: not receiving the first beam indication signaling mechanism under the first beam indication signaling mechanism One signaling, or, the fourth signaling and the fifth signaling are not received under the second beam indication signaling mechanism;
  • the terminal Before the first symbol of the first channel and/or reference signal transmission, the terminal only receives the signaling indicating that the beam information set takes effect; specifically, it may include: receiving only the signaling under the second beam indication signaling mechanism Arriving at the fourth signaling but not receiving the fifth signaling;
  • none of the signaling carrying the beam indication information received by the terminal takes effect; specifically, it may include: under the first beam indication signaling mechanism, according to The beam information indicated by the first signaling has not yet taken effect, or, under the second beam indicating signaling mechanism, the beam information indicated by the fourth signaling has taken effect, but the beam information indicated by the fifth signaling has not yet taken effect;
  • the effective beam information in the signaling carrying beam indication information received by the terminal only includes: the beam indication associated with the target cell information, or only unified TCI information exists;
  • the effective beam information in the signaling carrying the beam indication information received by the terminal only includes: TCI state, where the TCI state is legacy TCI state;
  • the signaling carrying beam indication information received by the terminal only includes: beam indication information associated with the target cell, or Only unified TCI information exists;
  • the signaling carrying the beam indication information received by the terminal only includes: TCI state, where the TCI state is legacy TCI state.
  • the beam information of the default first channel and/or reference signal includes at least one of the following:
  • the beam information of the first channel and/or reference signal is determined according to the beam information of the synchronization signal block (Synchronization Signal and PBCH block, SSB) when the terminal initially accesses the current serving cell;
  • the synchronization signal block Synchronization Signal and PBCH block, SSB
  • the beam information of the first channel and/or reference signal is determined according to the beam information corresponding to the smallest TCI codepoint in the beam information set;
  • the beam information of the UE-dedicated channel and/or reference signal is determined according to the beam information of the CORESET with the smallest control resource set ID (control Resource Set Id) in the UE-dedicated CORESET;
  • the beam information of the non-UE-dedicated channel and/or reference signal is determined according to the beam information of the CORESET with the smallest control Resource Set Id in the non-UE-dedicated CORESET.
  • the embodiments of the present application determine the beam information of the first channel and/or reference signal according to the default when the terminal meets the first condition by setting the default, so that the terminal can By default, the channel and/or reference signal beam information is accurately determined or updated to implement accurate transmission of the channel and/or reference signal and improve reliability of data transmission.
  • the method before the steps S210, 310, 610 and 810 further includes:
  • the terminal determines or switches a beam indication mechanism (beam indication) according to signaling including beam indication information.
  • the beam indication mechanism may include an inter-cell beam indication mechanism (inter-cell beam indication) and an intra-cell beam indication mechanism (intra-cell beam indication). Through corresponding signaling, one or more of the beam indication mechanisms can be determined or switched.
  • the method also includes:
  • the terminal will determine or update the first Beam information of channels and/or reference signals; wherein, the target beam indication mechanism is an inter-cell beam indication mechanism;
  • the fourth preset rule includes:
  • the TCI state is legacy TCI state
  • the terminal when the signaling includes beam indication information associated with the target cell, or the signaling indicates that the mechanism is determined or switched to the target beam indication mechanism, the terminal will determine or update the beam information of the first channel and/or reference signal according to the fourth preset rule, so that the terminal can accurately determine or update the channel and/or reference signal beam information to realize the channel and/or reference signal
  • the accurate transmission of signals improves the reliability of data transmission.
  • the beam indicating method provided in the embodiment of the present application may be executed by a beam indicating device, or a control module in the beam indicating device for executing the beam indicating method.
  • the beam indicating device provided in the embodiment of the present application is described by taking the beam indicating device performing the beam indicating method as an example.
  • FIG. 10 shows a schematic structural diagram of a beam indicating device provided by an embodiment of the present application. As shown in FIG. 10 , the device includes: a receiving module 101 and an executing module 102 .
  • the receiving module 101 is configured to obtain signaling including beam indication information; the execution module 102 is configured to determine or update the first channel and/or reference signal according to preset rules according to the signaling including beam indication information Beam information, used for reception and/or transmission.
  • the signaling including the beam indication information is one of the following signaling forms:
  • the first channel and/or reference signal includes at least one of the following:
  • Terminal dedicated channels and/or reference signals are terminal dedicated channels and/or reference signals
  • Non-terminal dedicated channels and/or reference signals are not limited to:
  • Terminal dedicated uplink channel and/or reference signal
  • Terminal dedicated downlink channel and/or reference signal
  • Non-terminal-specific downlink channels and/or reference signals are Non-terminal-specific downlink channels and/or reference signals
  • non-terminal dedicated channel and/or reference signal includes at least one of the following:
  • the physical downlink control channel scheduling-related channels include at least one of the following:
  • non-terminal-specific control resource set is at least one of the following:
  • the associated search space sets are all control resource sets of the common search space set
  • control resource set with a common search space set in the associated search space set
  • the beam indication information includes at least one of the following types:
  • various types of beam indication information include at least one of the following beam information:
  • the beam indication information associated with the target cell satisfies at least one of the following:
  • An indication that contains or is associated with relevant information of the target cell is provided.
  • the target cell is a cell corresponding to a physical cell ID different from the physical cell ID of the current cell.
  • the terminal determines or updates the beam information of the first channel and/or reference signal according to the preset rules according to the signaling containing the beam indication information for receiving and/or send, so that the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal, and improve the reliability of data transmission.
  • the receiving module is configured to receive the first signaling carrying beam indication information
  • the execution module is configured to determine or update the first beam information of the first channel and/or reference signal according to the first preset rule according to the first signaling.
  • the first preset rule includes at least one of the following:
  • the first beam information is based on the Determining the joint transmission configuration indication in the first signaling carrying the joint transmission configuration indication that is most recent and valid for the first symbol of the terminal dedicated channel and/or reference signal;
  • the first channel and/or reference signal is the terminal-dedicated downlink channel and/or reference signal
  • the first beam information according to before the terminal-dedicated downlink channel and/or reference signal starts to transmit Determining the downlink transmission configuration indication in the first signaling carrying the downlink transmission configuration indication that is nearest to the terminal-specific downlink channel and/or the first symbol of the reference signal;
  • the first channel and/or reference signal is the terminal-dedicated uplink channel and/or reference signal
  • the first beam information according to before the terminal-dedicated uplink channel and/or reference signal starts to transmit Determining the uplink transmission configuration indication in the first signaling carrying the uplink transmission configuration indication that is nearest to the terminal-specific uplink channel and/or the first symbol of the reference signal;
  • the first beam information or part of the first beam information is based on the non-terminal-dedicated downlink channel and/or Before the reference signal starts to be transmitted, the beam indication information in the second signaling that is nearest to all or part of the non-terminal-specific downlink channels and/or the first symbol of the reference signal and takes effect is determined;
  • the beam indication information in the second signaling includes at least one of the following:
  • the transport configuration indicates the status.
  • the terminal under the only MAC CE beam indication signaling mechanism, according to receiving the first signaling carrying beam indication information; the terminal according to the first signaling , determine or update the first beam information of the first channel and/or reference signal according to the first preset rule, so that the terminal can accurately determine or update the channel and/or reference signal beam under the only MAC CE beam indication signaling mechanism information to achieve accurate transmission of channel and/or reference signals and improve the reliability of data transmission.
  • the receiving module is configured to receive fourth signaling and fifth signaling carrying beam indication information
  • the executing module is configured to determine or update the second beam information of the first channel and/or the reference signal according to the second preset rule according to the fourth signaling and the fifth signaling.
  • the second preset rules include:
  • the beam indication information in the fourth signaling that carries the beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal
  • the beam indication information in the fifth signaling that carries the beam indication information and takes effect and is closest to the first symbol of the first channel and/or reference signal before the transmission of the first channel and/or reference signal starts , determining second beam information of the first channel and/or reference signal in the beam information set of the first channel and/or reference signal;
  • the second channel and/or reference signal is one of the following:
  • the beam indication information determines the beam information set of the first channel and/or reference signal, including:
  • the beam indication information in the fourth signaling that carries the first beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal determining a first beam information set of a terminal-dedicated channel and/or a reference signal;
  • a second set of beam information for non-terminal-specific channels and/or reference signals is determined.
  • the first beam indication information includes at least one of the following:
  • the second beam indication information includes at least one of the following:
  • the fifth signaling that carries beam indication information and takes effect closest to the first symbol of the first channel and/or reference signal determines the second beam information of the first channel and/or reference signal, including at least one of the following:
  • the second beam information is based on the first symbol transmitted from the terminal-dedicated channel and/or reference signal
  • the joint transmission configuration indication corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the latest and effective fifth signaling in the first beam information set is determined;
  • the second beam information is transmitted according to the first Determining the downlink transmission configuration indication corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the fifth signaling that is the most recent and valid for symbols in the first beam information set;
  • the second beam information is based on the first Determine the uplink transmission configuration indication corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the fifth signaling that is most recent and valid for the symbols in the first beam information set;
  • the second beam information or part of the second beam information is based on the distance from the non-terminal-dedicated downlink channel and /or determine the beam information corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the latest and effective fifth signaling of the first symbol of the reference signal transmission in the second beam information set.
  • a joint transmission configuration indication that is not directly or indirectly associated with the target cell
  • Downlink transmission configuration indication that is not directly or indirectly associated with the target cell.
  • the terminal Under the only MAC CE+DCI beam indication signaling mechanism, according to receiving the fourth signaling and the fifth signaling carrying beam indication information; the terminal According to the fourth signaling and the fifth signaling, determine or update the second beam information of the first channel and/or reference signal according to the second preset rule, so that the terminal can indicate signaling in only MAC CE+DCI beam Under the mechanism, accurately determine or update channel and/or reference signal beam information to realize accurate transmission of channel and/or reference signal and improve the reliability of data transmission.
  • the receiving module is configured to receive the first signaling, the fourth signaling and the fifth signaling carrying beam indication information
  • the execution module is configured to determine or update third beam information of the first channel and/or reference signal according to a third preset rule according to the first signaling, the fourth signaling and the fifth signaling.
  • the third preset rule includes at least one of the following:
  • the third beam information is determined by determining or updating the first beam information of the first channel and/or reference signal according to the first preset rule according to the first signaling;
  • the third beam information is determined by determining or updating the second beam information of the first channel and/or reference signal according to the second preset rule according to the fourth signaling and the fifth signaling;
  • the third beam information is determined for the beam information whose effective time is closest to the target symbol of the first channel and/or reference signal among the first beam information and the second beam information.
  • the terminal determines or updates the first channel and/or the reference signal according to the third preset rule according to the first signaling, the fourth signaling and the fifth signaling.
  • the third beam information so that the terminal can accurately determine or update the channel and/or reference signal beam information to realize the channel and/or reference signal while using the first beam indication signaling mechanism and the second beam indication signaling mechanism.
  • the accurate transmission of signals improves the reliability of data transmission.
  • the executing module is configured to determine, by default, the terminal determines the beam information of the first channel and/or reference signal when the first condition is met.
  • the first condition includes at least one of the following:
  • the terminal Before the first symbol of the first channel and/or reference signal transmission, the terminal does not receive signaling carrying beam indication information;
  • the terminal Before the first symbol of the first channel and/or reference signal transmission, the terminal only receives signaling indicating that the beam information set is valid;
  • the effective beam information in the signaling carrying beam indication information received by the terminal only includes: beam indication information associated with the target cell, Or uniformly transmit configuration indication information;
  • the effective beam information in the signaling carrying beam indication information received by the terminal only includes: transmission configuration indication status;
  • the signaling carrying beam indication information received by the terminal only includes: beam indication information associated with the target cell, or unified transmission configuration instructions;
  • the signaling carrying the beam indication information received by the terminal only includes: a transmission configuration indication status.
  • execution module is used for:
  • the beam information of the first channel and/or reference signal is determined according to the beam information of the synchronization signal block when the terminal initially accesses the current serving cell;
  • the beam information of the first channel and/or reference signal is determined according to the beam information corresponding to the minimum transmission configuration indicator code point in the beam information set;
  • the beam information of the terminal-dedicated channel and/or reference signal is determined according to the beam information of the control resource set with the smallest control resource set identifier in the terminal-dedicated control resource set;
  • the beam information of the non-terminal-dedicated channel and/or the reference signal is determined according to the beam information of the control resource set with the smallest control resource set identifier in the non-terminal-dedicated control resource set.
  • the embodiments of the present application determine the beam information of the first channel and/or reference signal according to the default when the terminal meets the first condition by setting the default, so that the terminal can By default, the channel and/or reference signal beam information is accurately determined or updated to implement accurate transmission of the channel and/or reference signal and improve reliability of data transmission.
  • the execution module is further configured for the terminal to determine or switch a beam indication signaling mechanism according to the signaling including the beam indication information.
  • the execution module is further configured to determine or switch the beam indication mechanism according to the signaling containing the beam indication information. Further, the execution module is further configured to: if the signaling includes beam indication information associated with the target cell, or the signaling indicates to determine or switch to the target beam indication mechanism, the terminal will follow the fourth Determine or update beam information of the first channel and/or reference signal according to preset rules; wherein, the target beam indication mechanism is an inter-cell beam indication mechanism;
  • the fourth preset rule includes:
  • the terminal when the signaling includes beam indication information associated with the target cell, or the signaling indicates that the mechanism is determined or switched to the target beam indication mechanism, the terminal will determine or update the beam information of the first channel and/or reference signal according to the fourth preset rule, so that the terminal can accurately determine or update the channel and/or reference signal beam information to realize the channel and/or reference signal
  • the accurate transmission of signals improves the reliability of data transmission.
  • the beam pointing device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the beam indicating device provided by the embodiment of the present application can realize the various processes realized by the method embodiments in Fig. 1 to Fig. 9, and achieve the same technical effect. In order to avoid repetition, details are not repeated here.
  • this embodiment of the present application further provides a communication device 1100, including a processor 1101, a memory 1102, and programs or instructions stored in the memory 1102 and operable on the processor 1101,
  • a communication device 1100 including a processor 1101, a memory 1102, and programs or instructions stored in the memory 1102 and operable on the processor 1101
  • the communication device 1100 is a terminal
  • the program or instruction is executed by the processor 1101
  • each process of the above-mentioned embodiment of the beam indicating method can be realized, and the same technical effect can be achieved.
  • the communication device 1100 is a network-side device
  • the program or instruction is executed by the processor 1101
  • each process of the above-mentioned embodiment of the beam indication method can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is configured to determine or update the beam information of the first channel and/or the reference signal according to preset rules according to the signaling including the beam indication information, Used for receiving and/or sending, the communication interface is used for obtaining signaling including beam indication information.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 12 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1200 includes, but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210, etc. at least some of the components.
  • the terminal 1200 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1210 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 12 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1204 may include a graphics processor (Graphics Processing Unit, GPU) 12041 and a microphone 12042, and the graphics processor 12041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1207 includes a touch panel 12071 and other input devices 12072 . Touch panel 12071, also called touch screen.
  • the touch panel 12071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 12072 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 repeated here.
  • the radio frequency unit 1201 receives the downlink data from the network side device, and processes it to the processor 1210; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1201 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.
  • the memory 1209 can be used to store software programs or instructions as well as various data.
  • the memory 1209 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1209 may include a high-speed random access memory, and may also include a non-transitory memory, wherein the non-transitory memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one disk storage device, flash memory device, or other non-transitory solid state storage device.
  • the processor 1210 may include one or more processing units; optionally, the processor 1210 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 handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1210 .
  • the radio frequency unit 1201 is configured to acquire signaling including beam indication information.
  • the processor 1210 is configured to determine or update beam information of the first channel and/or reference signal according to the signaling according to preset rules.
  • the signaling including the beam indication information is one of the following signaling forms:
  • the first channel and/or reference signal includes at least one of the following:
  • Terminal dedicated channels and/or reference signals are terminal dedicated channels and/or reference signals
  • Non-terminal dedicated channels and/or reference signals are not limited to:
  • Terminal dedicated uplink channel and/or reference signal
  • Terminal dedicated downlink channel and/or reference signal
  • Non-terminal-specific downlink channels and/or reference signals are Non-terminal-specific downlink channels and/or reference signals
  • non-terminal dedicated channel and/or reference signal includes at least one of the following:
  • the physical downlink control channel scheduling-related channels include at least one of the following:
  • non-terminal-specific control resource set is at least one of the following:
  • the associated search space sets are all control resource sets of the common search space set
  • control resource set with a common search space set in the associated search space set
  • the beam indication information includes at least one of the following types:
  • various types of beam indication information include at least one of the following beam information:
  • the beam indication information associated with the target cell satisfies at least one of the following:
  • An indication that contains or is associated with relevant information of the target cell is provided.
  • the target cell is a cell corresponding to a physical cell ID different from the physical cell ID of the current cell.
  • the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal, and improve the reliability of data transmission.
  • the radio frequency unit 1201 is configured to receive the first signaling carrying beam indication information.
  • the processor 1210 is configured to determine or update first beam information of a first channel and/or a reference signal according to a first preset rule according to the first signaling.
  • the first preset rule includes at least one of the following:
  • the first beam information is based on the Determining the joint transmission configuration indication in the first signaling carrying the joint transmission configuration indication that is most recent and valid for the first symbol of the terminal dedicated channel and/or reference signal;
  • the first channel and/or reference signal is the terminal-dedicated downlink channel and/or reference signal
  • the first beam information according to before the terminal-dedicated downlink channel and/or reference signal starts to transmit Determining the downlink transmission configuration indication in the first signaling carrying the downlink transmission configuration indication that is nearest to the terminal-specific downlink channel and/or the first symbol of the reference signal;
  • the first channel and/or reference signal is the terminal-dedicated uplink channel and/or reference signal
  • the first beam information according to before the terminal-dedicated uplink channel and/or reference signal starts to transmit Determining the uplink transmission configuration indication in the first signaling carrying the uplink transmission configuration indication that is nearest to the terminal-specific uplink channel and/or the first symbol of the reference signal;
  • the first beam information or part of the first beam information is based on the non-terminal-dedicated downlink channel and/or Before the reference signal starts to be transmitted, the beam indication information in the second signaling that is nearest to all or part of the non-terminal-specific downlink channels and/or the first symbol of the reference signal and takes effect is determined;
  • the beam indication information in the second signaling includes at least one of the following:
  • the transport configuration indicates the status.
  • the terminal can accurately determine or update the channel and/or reference signal beam information to realize the accurate transmission of the channel and/or reference signal and improve the reliability of data transmission.
  • the radio frequency unit 1201 is configured to receive fourth signaling and fifth signaling carrying beam indication information
  • the processor 1210 is configured to determine or update second beam information of the first channel and/or reference signal according to a second preset rule according to the fourth signaling and the fifth signaling.
  • the second preset rules include:
  • the beam indication information in the fourth signaling that carries the beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal
  • the beam indication information in the fifth signaling that carries the beam indication information and takes effect and is closest to the first symbol of the first channel and/or reference signal before the transmission of the first channel and/or reference signal starts , determining second beam information of the first channel and/or reference signal in the beam information set of the first channel and/or reference signal;
  • the second channel and/or reference signal is one of the following:
  • the beam indication information determines the beam information set of the first channel and/or reference signal, including:
  • the beam indication information in the fourth signaling that carries the first beam indication information and is effective before the transmission of the second channel and/or reference signal is closest to the first symbol of the second channel and/or reference signal determining a first beam information set of a terminal-dedicated channel and/or a reference signal;
  • a second set of beam information for non-terminal-specific channels and/or reference signals is determined.
  • the first beam indication information includes at least one of the following:
  • the second beam indication information includes at least one of the following:
  • the fifth signaling that carries beam indication information and takes effect closest to the first symbol of the first channel and/or reference signal determines the second beam information of the first channel and/or reference signal, including at least one of the following:
  • the second beam information is based on the first symbol transmitted from the terminal-dedicated channel and/or reference signal
  • the joint transmission configuration indication corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the latest and effective fifth signaling in the first beam information set is determined;
  • the second beam information is transmitted according to the first Determining the downlink transmission configuration indication corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the fifth signaling that is the most recent and valid for symbols in the first beam information set;
  • the second beam information is based on the first Determine the uplink transmission configuration indication corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the fifth signaling that is the most recent and valid for the symbols in the first beam information set;
  • the second beam information or part of the second beam information is based on the distance from the non-terminal-dedicated downlink channel and /or determine the beam information corresponding to the transmission configuration indication code point corresponding to the transmission configuration indication field in the latest and effective fifth signaling of the first symbol of the reference signal transmission in the second beam information set.
  • a joint transmission configuration indication that is not directly or indirectly associated with the target cell
  • Downlink transmission configuration indication that is not directly or indirectly associated with the target cell.
  • the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal and improve the reliability of data transmission.
  • the radio frequency unit 1201 is configured to receive the first signaling, the fourth signaling, and the fifth signaling that carry beam indication information;
  • the processor 1210 is configured to determine or update third beam information of the first channel and/or reference signal according to a third preset rule according to the first signaling, the fourth signaling and the fifth signaling.
  • the third preset rule includes at least one of the following:
  • the third beam information is determined by determining or updating the first beam information of the first channel and/or reference signal according to the first preset rule according to the first signaling;
  • the third beam information is determined by determining or updating the second beam information of the first channel and/or reference signal according to the second preset rule according to the fourth signaling and the fifth signaling;
  • the third beam information is determined for the beam information whose effective time is closest to the target symbol of the first channel and/or reference signal among the first beam information and the second beam information.
  • the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal while using the first beam indication signaling mechanism and the second beam indication signaling mechanism at the same time, improving Reliability of data transmission.
  • the processor 1210 is configured to determine, by default, the beam information of the first channel and/or reference signal by the terminal when the first condition is met.
  • the first condition includes at least one of the following:
  • the terminal Before the first symbol of the first channel and/or reference signal transmission, the terminal does not receive signaling carrying beam indication information;
  • the terminal Before the first symbol of the first channel and/or reference signal transmission, the terminal only receives signaling indicating the validation of the beam information set;
  • the effective beam information in the signaling carrying beam indication information received by the terminal only includes: beam indication information associated with the target cell, Or uniformly transmit configuration indication information;
  • the effective beam information in the signaling carrying beam indication information received by the terminal only includes: transmission configuration indication status;
  • the signaling carrying beam indication information received by the terminal only includes: beam indication information associated with the target cell, or unified transmission configuration instructions;
  • the signaling carrying the beam indication information received by the terminal only includes: a transmission configuration indication status.
  • processor 1210 is configured to:
  • the beam information of the first channel and/or reference signal is determined according to the beam information of the synchronization signal block when the terminal initially accesses the current serving cell;
  • the beam information of the first channel and/or reference signal is determined according to the beam information corresponding to the minimum transmission configuration indicator code point in the beam information set;
  • the beam information of the terminal-dedicated channel and/or reference signal is determined according to the beam information of the control resource set with the smallest control resource set identifier in the terminal-dedicated control resource set;
  • the beam information of the non-terminal-dedicated channel and/or the reference signal is determined according to the beam information of the control resource set with the smallest control resource set identifier in the non-terminal-dedicated control resource set.
  • the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal, and improve the reliability of data transmission.
  • the execution module is further used for the terminal to determine or switch the beam indication signaling mechanism according to the signaling containing the beam indication information.
  • the processor 1210 is further configured to determine or switch a beam indication mechanism according to signaling including beam indication information.
  • the processor 1210 is further configured to: if the signaling includes beam indication information associated with the target cell, or the signaling indicates to determine or switch to a target beam indication mechanism, the terminal will follow the first Four preset rules to determine or update the beam information of the first channel and/or reference signal; wherein, the target beam indication mechanism is an inter-cell beam indication mechanism;
  • the fourth preset rule includes:
  • the terminal can accurately determine or update the channel and/or reference signal beam information to realize accurate transmission of the channel and/or reference signal, and improve the reliability of data transmission.
  • the embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the above embodiment of the beam indicating method can be realized, and can achieve the same To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above embodiment of the beam indicating method Each process, and can achieve the same technical effect, in order to avoid repetition, will not repeat them here.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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

Abstract

La présente demande appartient au domaine des communications mobiles, et concerne un appareil et un procédé d'indication de faisceau, et un terminal. Le procédé d'indication de faisceau selon des modes de réalisation de la présente demande comprend les étapes suivantes dans lesquelles : un terminal reçoit une signalisation comprenant des informations d'indication de faisceau ; et le terminal détermine ou met à jour, en fonction de la signalisation, des informations de faisceau d'un premier canal et/ou d'un signal de référence en fonction d'une règle prédéfinie.
PCT/CN2022/121621 2021-09-29 2022-09-27 Appareil et procédé d'indication de faisceau, et terminal WO2023051506A1 (fr)

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CN202111156290.5A CN115915399A (zh) 2021-09-29 2021-09-29 波束指示方法、装置及终端
CN202111156290.5 2021-09-29

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Citations (4)

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Publication number Priority date Publication date Assignee Title
US20200404642A1 (en) * 2018-03-30 2020-12-24 Beijing Xiaomi Mobile Software Co., Ltd. Method and device for selecting beam
US20210135801A1 (en) * 2019-11-01 2021-05-06 Qualcomm Incorporated Operation rules for group component carrier beam update
CN112771814A (zh) * 2020-12-29 2021-05-07 北京小米移动软件有限公司 波束指示方法、波束指示装置及存储介质
WO2021160026A1 (fr) * 2020-02-12 2021-08-19 维沃移动通信有限公司 Procédé de rapport de faisceau, nœud de réseau et terminal

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Publication number Priority date Publication date Assignee Title
US20200404642A1 (en) * 2018-03-30 2020-12-24 Beijing Xiaomi Mobile Software Co., Ltd. Method and device for selecting beam
US20210135801A1 (en) * 2019-11-01 2021-05-06 Qualcomm Incorporated Operation rules for group component carrier beam update
WO2021160026A1 (fr) * 2020-02-12 2021-08-19 维沃移动通信有限公司 Procédé de rapport de faisceau, nœud de réseau et terminal
CN112771814A (zh) * 2020-12-29 2021-05-07 北京小米移动软件有限公司 波束指示方法、波束指示装置及存储介质

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VIVO: "Further discussion on multi beam enhancement", 3GPP DRAFT; R1-2106571, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210816 - 20210827, 7 August 2021 (2021-08-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052037877 *

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