WO2024207331A1 - Procédé et appareil de réception de données, procédé et appareil de transmission de données - Google Patents

Procédé et appareil de réception de données, procédé et appareil de transmission de données Download PDF

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Publication number
WO2024207331A1
WO2024207331A1 PCT/CN2023/086652 CN2023086652W WO2024207331A1 WO 2024207331 A1 WO2024207331 A1 WO 2024207331A1 CN 2023086652 W CN2023086652 W CN 2023086652W WO 2024207331 A1 WO2024207331 A1 WO 2024207331A1
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state
tci state
transmission configuration
tci
configuration indication
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PCT/CN2023/086652
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English (en)
Chinese (zh)
Inventor
赵帝
张健
卢艺文
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Fujitsu Ltd
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Fujitsu Ltd
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Priority to PCT/CN2023/086652 priority Critical patent/WO2024207331A1/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

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • the 3GPP standardization organization has carried out standardization work on the unified transmission configuration indication (TCI).
  • TCI transmission configuration indication
  • the unified TCI in Rel-17 is mainly designed for a single TRP or single TRP (single transmission and reception point, sTRP) scenario.
  • TRPs or multi-TRP multiple transmission and reception point, mTRP or multi-TRP
  • mTRP multiple transmission and reception point
  • mTRP-based transmission Through mTRP-based transmission, the purpose of increasing throughput or improving reliability can be achieved.
  • mTRP transmission includes mTRP transmission based on single DCI (single Downlink Control Information, sDCI) and mTRP transmission based on multiple DCI (multiple DCI, mDCI).
  • the network equipment uses radio resource control (RRC) signaling to configure M (M ⁇ 1) (groups) of TCI states for the terminal equipment, uses medium access control (MAC) control elements (CE) to activate N (1 ⁇ N ⁇ M) (groups) of TCI states in M TCI states, and uses DCI to activate N (1 ⁇ N ⁇ M) (groups) of TCI states in N L (1 ⁇ L ⁇ N) (groups) of TCI states are indicated in the (group) TCI state.
  • RRC radio resource control
  • M ⁇ 1 groups
  • MAC medium access control
  • CE control elements
  • the transmission configuration indication (TCI) field of DCI format 1_1 or DCI format 1_2 (hereinafter referred to as the "TCI field") indicates one or more TCI states (TCI state, in addition, for the convenience of expression, "the TCI field of DCI indicated” will also be referred to as “DCI indicated”), and each group of TCI states includes one or more TCI states.
  • a TCI state may include or correspond to one or two source reference signals (source RS, source Reference Signal).
  • the source reference signal may provide quasi co-location (QCL) information for downlink reception, and is referred to as a downlink source reference signal.
  • the source reference signal may provide a reference for an uplink transmission spatial filter (UL TX spatial filter, uplink transmission spatial filter), and is referred to as an uplink source reference signal.
  • the source reference signal may provide beam information for a destination channel/signal.
  • the beam used by the terminal device to receive the destination channel/signal is the same as the beam used to receive the downlink source reference signal.
  • the beam used by the terminal device to send the destination channel/signal is the same as the beam used to send the uplink source reference signal.
  • the beam used by the terminal device to send the destination channel/signal is reciprocal with the beam used to receive the downlink source reference signal, that is, beams in opposite directions are used.
  • the indication or update of the TCI state actually also includes the indication or update of the beam used by the terminal device.
  • the TCI state includes a joint TCI state (joint DL/UL TCI state) and a separate TCI state (separate DL/UL TCI state), wherein the separate TCI state includes: a separate downlink TCI state (separate DL/UL TCI state) and a separate uplink TCI state (separate UL TCI state).
  • the "joint” or “separate” in this application refers to the joint uplink and downlink or the separate uplink and downlink.
  • the separate TCI state can be divided into a separate downlink TCI state and a separate uplink TCI state.
  • the downlink TCI state or the first/second downlink TCI state mentioned later belongs to the separate TCI state, and the uplink TCI state or the first/second uplink TCI state mentioned later also belongs to the separate TCI state.
  • the source reference signal included in the downlink TCI state is a downlink source reference signal
  • the source reference signal included in the uplink TCI state is an uplink source reference signal
  • the source reference signal included in the joint TCI state is both a downlink source reference signal and an uplink source reference signal.
  • the joint TCI state acts on both the downlink beam (receiving beam) and the uplink beam (transmitting beam). In other words, the downlink beam and the uplink beam use the same beam, but the beam directions are opposite, that is, there is reciprocity between the uplink and downlink beams.
  • the downlink TCI state only acts on the downlink beam.
  • the uplink TCI state only acts on the uplink beam.
  • the uplink beam is also called an uplink transmit spatial filter.
  • the TCI field can indicate a joint TCI state (joint DL/UL TCI), or the TCI field can indicate a downlink TCI state and/or an uplink TCI state (separate DL/UL TCI). These two modes can be configured through RRC signaling.
  • a TCI field indicates a unified TCI state, or indicates a downlink TCI state, or indicates an uplink TCI state, or indicates a downlink TCI state and an uplink TCI state.
  • the high-level parameter "unifiedTCI-StateType” is used to configure whether to use the joint TCI state or the separate TCI state. Whether the TCI field of the corresponding DCI indicates (the expression below can be replaced by "TCI state indicated by DCI") the joint TCI state or the separate TCI state depends on the high-level parameter "unifiedTCI-StateType": when the value of the "unifiedTCI-StateType" parameter is 'joint', the DCI indicates one or more joint TCI states (Rel-17 indicates at most 1 joint TCI state, and Rel-18 can indicate at most 2 joint TCI states); when the value of the "unifiedTCI-StateType" parameter is 'separate', the DCI indicates one or more separate TCI states.
  • mTRP Multiple transmission and reception point
  • mTRP Multiple transmission and reception point
  • one DCI schedules the uplink and downlink transmission of two TRPs, which is more suitable for the situation where the backhaul between TRPs is ideal; for mTRP transmission based on mDCI, two TRPs use two DCIs to schedule the uplink and downlink transmission of their respective TRPs, which is more suitable for the situation where the backhaul between TRPs is not ideal.
  • the inventors have discovered that for the sDCI mTRP scenario of Rel-18, there may be inconsistencies between the TCI state activated and indicated by the network device and the (updated and/or maintained) TCI state that the terminal device can apply. Therefore, how the terminal device determines the TCI state to apply is a problem that needs to be solved.
  • an embodiment of the present application provides a method and apparatus for receiving and sending data. After receiving the first indication information and the second indication information, the terminal device determines the first TCI state and/or the second TCI state of the application. As a result, the terminal device can clearly define the (updated and/or maintained) TCI state of the application, so that uplink data can be sent and downlink data can be received accurately, and the understanding of user behavior by the network device and the terminal device is unified.
  • a data receiving method which is applied to a terminal device, and the method includes:
  • Receive first indication information wherein the first indication information indicates a unified TCI state A set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set
  • the unified TCI state set includes the first TCI state or the second TCI state, determining the first TCI state and the second TCI state of the application according to the second indication information;
  • the first TCI state or the second TCI state to be applied is determined according to the second indication information.
  • a data sending method is provided, which is applied to a network device, and the method includes:
  • the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set
  • the terminal device determines the first TCI state and the second TCI state to be applied according to the second indication information;
  • the terminal device determines the first TCI state or the second TCI state to be applied according to the second indication information.
  • a data receiving device which is configured in a terminal device, wherein the data receiving device includes:
  • a receiving unit which receives first indication information, wherein the first indication information indicates a unified transmission configuration indication state (unified TCI state) set, wherein the unified transmission configuration indication state (unified TCI state) set includes a first transmission configuration indication state (TCI state) and/or a second transmission configuration indication state (TCI state);
  • the receiving unit further receives second indication information, wherein the second indication information indicates that the unified transmission the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) in a unified TCI state set;
  • a determination unit which determines the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state) of an application according to the second indication information when the unified transmission configuration indication state (TCI state) set includes the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state); or, when the unified transmission configuration indication state (TCI state) set includes the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state), determines the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state) of an application according to the second indication information.
  • a data sending device which is configured in a network device, and the data sending device includes:
  • a sending unit which sends first indication information to a terminal device, wherein the first indication information indicates a unified transmission configuration indication state (unified TCI state) set, wherein the unified transmission configuration indication state (unified TCI state) set includes a first transmission configuration indication state (TCI state) and/or a second transmission configuration indication state (TCI state);
  • the sending unit further sends second indication information to the terminal device, wherein the second indication information indicates the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) in the unified transmission configuration indication state (unified TCI state) set;
  • the terminal device the terminal device
  • the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state) of the application are determined according to the second indication information; or, in a case where the unified transmission configuration indication state (unified TCI state) set includes the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state), the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state) of the application is determined according to the second indication information.
  • a communication system including:
  • a network device which sends a first indication information, wherein the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first a first TCI state and/or a second TCI state; and sending second indication information, wherein the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set;
  • a terminal device which receives the first indication information and the second indication information
  • the unified TCI state set includes the first TCI state or the second TCI state, determining the first TCI state and the second TCI state of the application according to the second indication information;
  • the first TCI state or the second TCI state to be applied is determined according to the second indication information.
  • the terminal device determines the first TCI state and/or the second TCI state of the application after receiving the first indication information and the second indication information.
  • the terminal device can clearly define the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • FIG1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG2 is an example diagram of a first format of a MAC CE according to an embodiment of the present application.
  • FIG3A is an example diagram of uplink and downlink in the mTRP scenario of an embodiment of the present application.
  • Figure 3B is an example diagram of the uplink and downlink in the mTRP scenario of an embodiment of the present application.
  • FIG4 is a schematic diagram of a data receiving method according to an embodiment of the present application.
  • FIG5 is a schematic diagram of the association relationship of mTRP related parameters in an embodiment of the present application.
  • FIG6A is an example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG6B is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG7A is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG7B is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG8 is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG9 is an example diagram of the first field of the first indication information according to an embodiment of the present application.
  • FIG10A is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG10B is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG10C is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG10D is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG10E is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG10F is another example diagram of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application
  • FIG11 is a schematic diagram of a data sending method according to an embodiment of the present application.
  • FIG12 is a schematic diagram of a data receiving device according to an embodiment of the present application.
  • FIG13 is a schematic diagram of a data sending device according to an embodiment of the present application.
  • FIG14 is a schematic diagram of the structure of a network device according to an embodiment of the present application.
  • FIG. 15 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of title, but do not represent the spatial arrangement or time order of these elements, etc., and these elements should not be limited by these terms.
  • the term “and/or” includes any one and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having”, etc. refer to the existence of the stated features, elements, components or components, but do not exclude the existence or addition of one or more other features, elements, components or components.
  • the term “communication network” or “wireless communication network” may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.
  • LTE Long Term Evolution
  • LTE-A enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • communication between devices in the communication system may be carried out according to communication protocols of any stage, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 4G 4G
  • 4.5G and 5G
  • NR New Radio
  • the term "network device” refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • the network device may include, but is not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server Server, Radio Network Controller (RNC), Base Station Controller (BSC), etc.
  • base stations may include but are not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB) and 5G base station (gNB), etc., and may also include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • base station may include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relays or low-power nodes such as femeto, pico, etc.
  • base station may include some or all of their functions, and each base station can provide communication coverage for a specific geographical area.
  • the term "cell” can refer
  • the term "user equipment” (UE) or “terminal equipment” (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services.
  • the terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and the like.
  • terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDA, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.
  • PDA personal digital assistants
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptop computers cordless phones
  • smart phones smart watches, digital cameras, etc.
  • the terminal device can also be a machine or device for monitoring or measuring, such as but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device to device (D2D) terminal, machine to machine (M2M) terminal, and so on.
  • MTC machine type communication
  • D2D device to device
  • M2M machine to machine
  • network side refers to one side of the network, which may be a base station, or may include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to one side of the user or terminal, which may be a UE, or may include one or more terminal devices as above.
  • device may refer to either a network device or a terminal device.
  • FIG1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation in which a terminal device and a network device are used as an example.
  • the communication system 100 may include a first TRP 101, a second TRP 102, and a terminal device 103.
  • the first TRP 101 and the second TRP 102 may be network devices. 1 Only the PDSCH channel between two network devices and one terminal device is taken as an example for description, but the embodiments of the present application are not limited to this.
  • existing services or future services can be sent between the first TRP 101, the second TRP 102 and the terminal device 103.
  • these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC ultra-reliable and low-latency communication
  • mTRP transmission includes mTRP transmission based on sDCI (single DCI) and mTRP transmission based on mDCI (multiple DCI).
  • sDCI single DCI
  • mDCI multiple DCI
  • sDCI single DCI
  • mDCI multiple DCI
  • mTRP transmission based on sDCI one DCI schedules the uplink and downlink transmissions of two TRPs, which is more suitable for the situation where the backhaul between TRPs is ideal.
  • mTRP transmission based on mDCI two TRPs use two DCIs to schedule the uplink and downlink transmissions of their respective TRPs, which is more suitable for the situation where the backhaul between TRPs is not ideal.
  • FIG1 takes the PDSCH reception of the terminal device 103 in the mTRP scenario as an example.
  • the terminal device receives two PDSCHs from the first TRP 101 and the second TRP 102 in the form of space division, time division, or frequency division.
  • the terminal receives the two PDSCHs according to the quasi-co-location information provided by TCI state 1 corresponding to the first TRP 101 and TCI state 2 corresponding to the second TRP 102.
  • the terminal device 103 receives the PDSCH in a PDSCH repetition manner.
  • the PDSCH sent by the first TRP 101 is received in the first time slot
  • the PDSCH sent by the second TRP 102 is received in the second time slot, and so on.
  • Rel-17 introduced unified TCI.
  • the downlink TCI state or the joint TCI state can provide quasi-co-location information for at least UE-specific PDSCH reception and/or UE-specific PDCCH reception; the uplink TCI state or the joint TCI state can provide quasi-co-location information for at least UE-specific PUSCH transmission and/or UE-specific PUCCH transmission.
  • the unified TCI scheme in Rel-17 is applicable to sTRP scenarios, in which there are only two transmission links, the uplink and the downlink. For example, at least one group of TCI states is activated in the MAC CE and the corresponding TCI state is indicated, and then the TCI field of the DCI indicates which group of activated TCI states to use.
  • the MAC CE can activate up to 8 groups of TCI states (hereinafter referred to as TCI groups), which correspond to the corresponding TCI code points (TCI codepoints) in the TCI field of the DCI.
  • TCI groups Each group of TCI states has 1 or 2 TCI states.
  • TCI groups can have 2 TCI states, which can provide QCL references for both uplink and downlink transmissions; a TCI group can have only 1 DL TCI state, which can provide QCL references for downlink transmissions; a TCI group can have only 1 UL TCI state, which can provide QCL references for uplink transmissions.
  • the RRC layer When the RRC parameter unifiedTCI-StateType is set to ‘joint’, the RRC layer will configure up to 128 TCI states in the dl-OrJointTCI-StateList list. These TCI states are joint TCI states, which can provide QCL information for both downlink and uplink.
  • the RRC parameter unifiedTCI-StateType When the RRC parameter unifiedTCI-StateType is set to ‘separate’, the RRC layer will configure up to 128 TCI states in the dl-OrJointTCI-StateList list. These TCI states are separate DL TCI states, which can provide QCL information for downlink reception.
  • the RRC layer will also configure up to 64 TCI states in the ul-TCI-ToAddModList list. These TCI states are separate UL TCI states, which can provide QCL information for uplink transmission.
  • CA carrier aggregation
  • CC component carriers
  • the same beam information can be shared.
  • it is not necessary to configure independent TCI state information for each CC such as configuring independent dl-OrJointTCI-StateList and/or ul-TCI-ToAddModList respectively, and a common signaling can be used to indicate the TCI state information of multiple CCs in a CC list.
  • Rel-17 supports the configuration of up to 4 CC lists (simultaneousU-TCI-UpdateList1 to simultaneousU-TCI-UpdateList4).
  • a reference CC is specified in each list.
  • TCI state information is configured only for the reference CC.
  • Other CCs in the list are no longer configured separately, but share TCI state information with the reference CC, that is, the TCI state configuration information of all CCs in a CC list is updated simultaneously.
  • the 4 CC lists configured in the RRC parameters are shown in Table 1 (TS 38.331 Section 6.3.2):
  • Table 1 Schematic diagram of CC list configured in RRC parameters
  • the reference CC configured for the downlink or joint (DL/joint) case is specified by the unifiedTCI-StateRef in the RRC parameter PDSCH-Config, as shown in Table 2 below (TS 38.331 section 6.3.2).
  • the current CC is not configured with a dl-OrJointTCI-StateList (i.e. when the CC is not a reference CC)
  • the dl-OrJointTCI-StateList configured in the reference CC specified by unifiedTCI-StateRef is used.
  • the reference CC configured for the uplink (UL) case is specified by the unifiedTCI-StateRef in the RRC parameter BWP-UplinkDedicated, as shown in Table 3 (TS 38.331 Section 6.3.2).
  • the ul-TCI-StateList configured in the reference CC specified by unifiedTCI-StateRef is used.
  • the "unifiedTCI-StateRef" related parameter in Table 3 is a combination of the ServCelIndex and other parameters in the parameter configuration of the reference CC (ServingCellAndBWP-Id):
  • TCI-States Up to 8 groups of TCI-States are activated through MAC-CE, corresponding to the 8 TCI codepoints that can be indicated by the TCI field in DCI.
  • 1 or 2 TCI states are configured for each TCI codepoint, which can provide QCL information for the uplink and/or downlink of a single TRP to the UE.
  • Fig. 2 is an example diagram of the first format of MAC CE in the implementation mode of the present application.
  • the first format is the medium access control element (MAC CE) format in version 17.
  • MAC CE medium access control element
  • the D/U field in Figure 2 indicates whether the TCI state corresponding to the TCI state ID of its row is "downlink/combined TCI state" or "uplink TCI state". For example, when the value of "D/U” is "1", it indicates that the TCI state corresponding to the TCI state ID of its row is “downlink/combined TCI state”; when the value of "D/U” is "0", it indicates that the TCI state corresponding to the TCI state ID of its row is "uplink TCI state”.
  • TCI codepoint is the content indicated by the TCI field in the DCI.
  • up to 8 TCI groups can be activated in the MAC CE (indicated by P1-P8 in Figure 2).
  • the TCI field of DCI format 1_1 or DCI format 1_2 is 3 bits wide, with a total of 8 possible encoding values: 0 00,001,010,011,100,101,110,111, where each code value is called a TCI codepoint.
  • the TCI state indicated by "TCI codepoint 1" corresponds to 1 TCI state or 2 TCI states indicated by P1.
  • the TCI field (Transmission Configuration Indication field) of DCI format 1_1/1_2 selects one of the activated TCI states in MAC-CE for receiving or sending the corresponding channel/signal.
  • One value of the TCI field corresponds to one TCI codepoint.
  • the terminal device can directly determine the applied TCI state according to the TCI state indicated by the DCI.
  • Figure 3A is an example diagram of the uplink and downlink links in the mTRP scenario of an embodiment of the present application
  • Figure 3B is an example diagram of the uplink and downlink links in the mTRP scenario of an embodiment of the present application.
  • each TRP has a downlink and an uplink, and there are a total of 4 links between the UE and the two TRPs.
  • UE 103 and the first TRP 101 have a downlink (hereinafter referred to as the first downlink) and an uplink (hereinafter referred to as the first uplink)
  • UE 103 and the first TRP 102 have a downlink (hereinafter referred to as the second downlink) and an uplink (hereinafter referred to as the second uplink) to provide QCL references for the transmission of their corresponding links.
  • the TCI states corresponding to the above four links are ⁇ first downlink TCI state (DL TCI state 1), first uplink TCI state (UL TCI state 1), second downlink TCI state (DL TCI state 2), second uplink TCI state (UL TCI state 2) ⁇ , which can provide QCL references for the first downlink, first uplink, second downlink, and second uplink, respectively.
  • first downlink TCI state DL TCI state 1
  • first uplink TCI state UL TCI state 1
  • second downlink TCI state DL TCI state 2
  • second uplink TCI state UL TCI state 2
  • one TCI codepoint in the DCI needs to correspond to four activated TCI states, or to part of these four activated TCI states.
  • the TCI states corresponding to the above four links are ⁇ first joint TCI state (Joint TCI state 1), second joint TCI state (Joint TCI state 2) ⁇ , where the first joint TCI state can provide QCL reference for the first downlink and the first uplink, and the second joint TCI state can provide QCL reference for the second downlink and the second uplink.
  • the MAC CE and DCI when the reference CC in a CC list is an sTRP CC, the MAC CE and DCI only indicate one TCI state, but the terminal device may receive the MAC CE and DCI on an mTRP CC, that is, the terminal device applies two TCI states; and, when the reference CC in a CC list is an mTRP CC, the MAC CE and DCI only indicate two TCI states, but the terminal device may receive the MAC CE and DCI on an sTRP CC, that is, the terminal device applies one TCI state; then the terminal device cannot determine which TCI state to apply. Therefore, if the method of applying TCI state in Rel-17 is still used, the terminal device cannot determine the TCI state to apply.
  • an embodiment of the present application provides a method and device for receiving and sending data.
  • An embodiment of the present application provides a data receiving method, which is applied on a terminal device side.
  • FIG. 4 is a schematic diagram of a data receiving method according to an embodiment of the present application. As shown in FIG. 4 , the method includes:
  • a terminal device receives first indication information, wherein the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the terminal device receives second indication information, wherein the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set;
  • the terminal device determines the first TCI state and the second TCI state of the application according to the second indication information; or, when the unified TCI state set includes the first TCI state and the second TCI state, the terminal device determines the first TCI state or the second TCI state of the application according to the second indication information.
  • the terminal device determines the first TCI state and/or the second TCI state of the application.
  • the terminal device can clearly identify the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • FIG. 4 above only schematically illustrates the embodiment of the present application, taking the terminal device as an example, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted.
  • Other operations may be added or some operations may be reduced.
  • the objects of the above operations may be adjusted.
  • Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG. 4 above.
  • terms such as “cell” can be equivalently replaced by “carrier” or “component carrier”; the above is only an exemplary description, and the embodiments of the present application are not limited to this.
  • the expression "indicating a unified TCI state set” can also be replaced by "activating/deactivating a unified TCI state set”; in some embodiments, the terms “PUSCH”, “PUSCH transmission”, and “PUSCH sending” can be replaced with each other; the terms “PDSCH”, “PDSCH transmission”, and “PDSCH sending” can be replaced with each other; “DL TCI state” or “UL TCI state” can be indicated by “joint DL/UL TCI state” or by "separate DL/UL TCI state”; “DL TCI state” can be “separate DL TCI state” or “joint TCI state”; “UL TCI state” can be “separate UL TCI state” or “joint TCI state”; the above is only an exemplary description, and the embodiments of the present application are not limited to this.
  • FIG5 is a schematic diagram of the association relationship of mTRP-related parameters in an embodiment of the present application.
  • the terminal device performs downlink transmission (DL transmission) to the two TRPs, for example, including downlink data transmission (which can be replaced by "sending PDSCH”, sending "DL-SCH”, etc.) and downlink control information transmission (which can be replaced by "sending PDCCH”, sending "DCI”, etc.).
  • DL transmission downlink data transmission
  • sending DL-SCH sending "DL-SCH”
  • DCI sending PDCCH
  • FIG5 schematically illustrates this.
  • FIG5 illustrates the association relationship between TCI state, downlink transmission, and TRP; for a TRP, it is mutually associated with a TCI state and a downlink transmission; for example, as shown in FIG5, the first TCI state corresponds to (is equivalent to) the first TRP; the second TCI state corresponds to (is equivalent to) the second TRP.
  • the first TCI state includes at least one of the following: a first downlink TCI state, a first uplink TCI state, and a first combined TCI state;
  • the second TCI stat includes at least one of the following: a second downlink TCI state, a second uplink TCI state, and a second combined TCI state.
  • a unified TCI state set includes at least one of the following TCI state combinations: a first downlink TCI state, a second downlink TCI state, a first uplink TCI state, a second uplink TCI state; a first downlink TCI state, a second downlink TCI state, a first uplink TCI state; a first downlink TCI state, a second downlink TCI state, a second uplink TCI state; a first downlink TCI state, a second downlink TCI state; a first downlink TCI state, a first uplink TCI state, a second uplink TCI state; a first downlink TCI state, a first uplink TCI state; a first downlink TCI state, a second uplink TCI state; a first downlink TCI state, a first uplink TCI state; a first downlink TCI state, a second uplink TCI state; a first downlink TCI state, a first uplink TCI state; a first downlink TCI state,
  • Two downlink TCI states first uplink TCI state, second uplink TCI state; second downlink TCI state, first uplink TCI state; second downlink TCI state, second uplink TCI state; second downlink TCI state; first uplink TCI state, second uplink TCI state; first uplink TCI state; second uplink TCI state; first combined TCI state, second combined TCI state; first combined TCI state; or second combined TCI state.
  • uplink TCI state For example, the above-mentioned uplink TCI state, downlink TCI state, and joint TCI state can be found in the introduction of the previous section and will not be repeated here.
  • the first indication information is carried by MAC CE; the second indication information is carried by DCI; the MAC CE is in the first format or the second format.
  • the first format is the MAC CE format in version 17; the second format is the MAC CE format in version 18.
  • the second indication information indicates one or more TCI states (TCI state) through the transmission configuration indication (TCI) field of DCI format 1_1 or DCI format 1_2.
  • TCI state TCI states
  • TCI format 1_1 or DCI format 1_2 can schedule downlink data, which is called DCI format 1_1/1_2 with DL assignment, or may not schedule downlink data, which is called DCI format 1_1/1_2 without DL assignment. This application does not impose any restrictions on this.
  • the first indication information is in the first format (MAC CE format of version 17 (Rel-17)) shown in FIG2 ; it may also be in the second format (MAC CE format of version 18 (Rel-18) (not shown in FIG2 ), and this application does not limit the specific format content of the second format.
  • the first indication information indicates a unified TCI state set, wherein the unified TCI state set may include only the first TCI state (corresponding to the first TRP), or only the second TCI state (corresponding to the second TRP), or the first TCI state and the second TCI state (corresponding to the first TRP and the second TRP); and then the second indication information indicates the first TCI state and/or the second TCI state of the application according to the TCI state included in the unified TCI state set; when the second indication information is in the Rel-17 MAC CE format, the second indication information can only indicate the unified TCI state set (indicating the TCI state under a single TRP) including the first TCI state.
  • the first indication information indicates a unified TCI state set of a first component carrier (CC); the terminal device determines the first TCI state and/or second TCI state to be applied on the second component carrier (CC).
  • the first component carrier (CC) is a reference component carrier (CC)
  • the second component carrier (CC) is the same as or different from the first component carrier (CC).
  • the first list includes simultaneous update TCI update list 1 (simultaneousU-TCI-UpdateList1) to simultaneous update TCI update list 4 (simultaneousU-TCI-UpdateList4).
  • the specific content of the simultaneous update of TCI update list 1 (simultaneousU-TCI-UpdateList1) to the simultaneous update of TCI update list 4 (simultaneousU-TCI-UpdateList4) can be referred to the prior art; in addition, for the specific content of the "reference component carrier (CC)" and other component carriers belonging to the “reference component carrier (CC)" that belong to the simultaneous update of TCI update list 1 (simultaneousU-TCI-UpdateList1) to the simultaneous update of TCI update list 4 (simultaneousU-TCI-UpdateList4), you can also refer to the prior art, and this application does not limit this.
  • the corresponding first component carrier (CC) when the first indication information is in Rel-18 MAC CE format, when the unified TCI state set indicated by the first indication information only includes the first TCI state or only includes the second TCI state, the corresponding first component carrier (CC) is a sTRP CC, and correspondingly, the reference CC is a sTRP CC; or, when the first indication information is in Rel-17 MAC CE format, when the unified TCI state set indicated by the first indication information can only include the first TCI state, the corresponding first component carrier (CC) is a sTRP CC, and correspondingly, the reference CC is a sTRP CC;
  • the TCI activation/deactivation MAC-CE signaling (first indication information) received by the terminal device is in Rel-18 format, and only the first DL/joint TCI state is activated for each TCI codepoint, and only the first UL TCI state is activated for each TCI codepoint; or only the second DL/joint TCI state is activated for each TCI codepoint, and only the second UL TCI state is activated for each TCI codepoint, and the first component carrier (CC) is the sTRP CC;
  • the TCI activation/deactivation MAC-CE signaling (first indication information) received by the terminal device is in Rel-17 format
  • the first component carrier (CC) is the sTRP CC.
  • the first component carrier (CC) is an mTRP CC
  • the reference CC is an mTRP CC
  • the TCI activation/deactivation MAC-CE signaling (first indication information) received by the terminal is in Rel-18 format, and at least one TCI codepoint corresponds to activating two DL/joint TCI states and/or at least one
  • the first component carrier (CC) is the mTRP CC
  • the reference CC is the mTRP CC.
  • the above “when the unified TCI state set includes the first TCI state or the second TCI state” corresponds to the case where the first component carrier (CC) is an sTRP CC; the above “when the unified TCI state set includes the first TCI state and the second TCI state” corresponds to the case where the first component carrier (CC) is an mTRP CC.
  • the terminal device determines to apply the first TCI state or the second TCI state on the second component carrier (CC)” corresponds to "the second component carrier (CC) is a sTRP CC"; "the terminal device determines to apply the first TCI state and the second TCI state on the second component carrier (CC)” corresponds to "the second component carrier (CC) is a mTRP CC”.
  • the above provides an example of determining whether the first component carrier (CC)/the second component carrier (CC) is an sTRP CC or an mTRP CC.
  • the following provides an example of how a terminal device determines whether to apply one TCI state or two TCI states.
  • determining the TCI state of the application means that after the terminal device receives the second indication information, "updating the TCI state” and/or “not updating the TCI state" ("maintaining the TCI state unchanged”); for example, after determining to apply a TCI state, "determining the TCI state of the application” may mean “updating the first TCI state” or “updating the second TCI state”; after determining to apply the first TCI state and the second TCI state, “determining the TCI state of the application” means “updating the first TCI state and maintaining the second TCI state unchanged” or means “updating the second TCI state and maintaining the first TCI state unchanged”; in some embodiments, "updating the first TCI state” includes “updating the first DL/joint TCI state”.
  • "updating the second TCI state” includes “updating the second DL/joint TCI state and updating the second UL TCI state” or “updating the second DL/joint TCI state, and maintaining the second UL TCI state unchanged” or “updating the second UL TCI state, and maintaining the second DL/joint TCI state unchanged", etc.; the above is only an illustrative explanation of the meaning of "determining the TCI state of the application", which will be described in detail in conjunction with the specific implementation methods later.
  • the terminal device further receives third indication information, wherein the third indication information indicates the application of the first TCI state and the second TCI state, or the third indication information indicates the application of the first TCI state or the second TCI state.
  • the third indication information is carried via RRC signaling.
  • the third indication information indicates the application of the first TCI state and the second TCI state” means that the corresponding terminal device operates under mTRP CC, that is, the corresponding second component carrier (CC) is mTRP CC; “the third indication information indicates the application of the first TCI state or the second TCI state” means that the corresponding terminal device operates under sTRP CC, that is, the corresponding second component carrier (CC) is sTRP CC.
  • This application does not limit the above statements.
  • the third indication information when the third indication information is configured with the first parameter and/or the second parameter, the third indication information indicates the application of the first TCI state and the second TCI state; when the third indication information is not configured with the first parameter and/or the second parameter, the third indication information indicates the application of the first TCI state or the second TCI state.
  • the first parameter is a relevant parameter in "RepetitionSchemeConfig" in the RRC signaling; and/or, for example, the first parameter is a relevant parameter in "repetitionNumber” in the RRC signaling.
  • the third indication information indicates the application of the first TCI state and the second TCI state, optionally indicating that the terminal device operates on the mTRP CC, that is, the second component carrier is the mTRP CC;
  • the third indication information indicates the application of the first TCI state or the second TCI state, and optionally indicates that the terminal device operates on the sTRP CC, that is, the second component carrier is the sTRP CC.
  • the second parameter is a related parameter in "ControlResourceSet" in RRC signaling.
  • the third indication information indicates the application of the first TCI state and the second TCI state, and optionally indicates that the terminal device works on the mTRP CC, that is, the second component carrier is the mTRP CC;
  • the third indication information indicates the application of the first TCI state or the second TCI state. It indicates that the terminal device works on the sTRP CC, that is, the second component carrier is the sTRP CC.
  • the third indication information when the third parameter configured by the third indication information takes a first value, the third indication information indicates the application of the first TCI state and the second TCI state; when the third parameter configured by the third indication information takes a second value, the third indication information indicates the application of the first TCI state or the second TCI state.
  • the third parameter is a parameter "trp-Mode" newly introduced in RRC signaling, and the "trp-Mode” can take a first value 'mtrp'; or a second value 'strp'; as shown in Table 4, it is an example of the parameter "trp-Mode":
  • the parameter "trp-Mode” corresponds to "trp-Mode-r18" in Table 4.
  • the third indication information indicates the application of the first TCI state and the second TCI state, optionally indicating that the terminal device operates on the mTRP CC, that is, the second component carrier is the mTRP CC; for example, when the "trp-Mode" takes the first value 'strp', the third indication information indicates the application of the first TCI state or the second TCI state, optionally indicating that the terminal device operates on the sTRP CC, that is, the second component carrier is the sTRP CC.
  • first component carrier (CC) and the second component carrier (CC) are sTRP CC or mTRP CC
  • the following example illustrates how to specifically determine the first TCI state and/or second TCI state of the application:
  • the first TCI state and/or the second TCI state of the application is confirmed in a predefined manner in combination with the second indication information, as illustrated below:
  • the root Determine to update the first TCI state of the application according to the indicated first TCI state or the indicated second TCI state, and maintain the second TCI state of the application unchanged; or when the second indication information indicates the first TCI state or the second TCI state, determine to update the second TCI state of the application according to the indicated first TCI state or the indicated second TCI state, and maintain the first TCI state of the application unchanged.
  • the predefined terminal device updates the first TCI state of the application according to the indicated first TCI state or the second TCI state and maintains the second TCI state unchanged; or, the predefined terminal device updates the second TCI state of the application according to the indicated first TCI state or the second TCI state and maintains the first TCI state unchanged.
  • Figure 6A is an example diagram of determining the first TCI state and/or second TCI state of the application in an embodiment of the present application; for example, in the first indication information (MAC CE), only the first TCI state is activated for 8 code points, and the second indication information (DCI) indicates the first TCI state on a code point, for example, the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state, and the predefined terminal device updates the first TCI state of the application (including the first DL/joint TCI state and the first UL TCI state) and maintains the second TCI state (including the second DL/joint TCI state and the second UL TCI state) unchanged.
  • MAC CE first indication information
  • DCI indicates the first TCI state on a code point
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state
  • the predefined terminal device updates the first TCI
  • the second indication information indicates the second TCI state on a code point
  • the second TCI state on the code point includes: a second DL/joint TCI state
  • a predefined terminal device updates the first TCI state of the application (updates the "first DL/joint TCI state" of the application with the indicated "second DL/joint TCI state"), and maintains the second TCI state (including the second DL/joint TCI state and the second UL TCI state) unchanged.
  • Figure 6B is another example diagram of determining the first TCI state and/or second TCI state of an application in an embodiment of the present application; for example, in the first indication information (MAC CE), only the first TCI state is activated for 8 code points, and the second indication information (DCI) indicates the first TCI state on a code point, for example, the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state, and the second TCI state of the application is updated by the predefined terminal device (the indicated "first DL/joint TCI state" and "first UL TCI state" are used to update the application's "second DL/joint TCI state" and "second UL TCI state”) and maintain the first The TCI state (including the first DL/joint TCI state and the first UL TCI state) remains unchanged.
  • the first indication information MAC CE
  • DCI indicates the first TCI state on a code point
  • the first TCI state on the code point
  • the third indication information indicates the application of the first TCI state or the second TCI state and the unified TCI state set includes the first TCI state and the second TCI state
  • the second indication information indicates the first TCI state and the second TCI state
  • the first TCI state to be updated for application is determined according to the indicated first TCI state; or the first TCI state to be updated for application is determined according to the indicated second TCI state.
  • the third indication information indicates the application of the first TCI state or the second TCI state (the terminal device operates on the sTRP CC) and when the second indication information indicates the first TCI state and the second TCI state (the reference CC is the mTRP CC), for example, the TCI state corresponding to the sTRP on which the terminal device operates is the first TCI state, and the predefined terminal device updates the application's first TCI state according to the indicated first TCI state; or, the predefined terminal device updates the application's first TCI state according to the indicated second TCI state.
  • the TCI field of the second indication information indicates that the first TCI state and the second TCI state include at least one of the following combinations: the TCI field of the DCI indicates 2 DL/joint TCI states and 2 UL TCI states (respectively recorded as the first DL/joint TCI state, the second DL/joint TCI state, the first UL TCI state, and the second UL TCI state); the TCI field of the DCI indicates 2 DL/joint TCI states (respectively recorded as the first DL/joint TCI state and the second DL/joint TCI state), and/or, "the first UL TCI state or the second UL TCI state"; the TCI field of the DCI indicates 2 indicated UL TCI states (respectively recorded as the first UL TCI state and the second UL TCI state), and/or, "the first DL/joint TCI state or the second DL/joint TCI state".
  • Figure 7A is another example diagram of determining the first TCI state and/or second TCI state of an application in an embodiment of the present application; for example, a first TCI state and a second TCI state are activated for at least one code point among eight code points in the first indication information (MAC CE), and the second indication information (DCI) indicates the first TCI state and the second TCI state at a code point, for example, the first TCI state at the code point includes: a first DL/joint TCI state and a first UL TCI state, the second TCI state at the code point includes: a second DL/joint TCI state and a second UL TCI state, and the predefined terminal device updates the first TCI state of the application according to the first DL/joint TCI state and the first UL TCI state (updates the "first DL/joint TCI state and the first UL TCI state" of the application with the indicated "first DL/joint TCI state").
  • MAC CE first indication
  • FIG. 7B is another example of determining the first TCI state and/or the second TCI state of an application in an embodiment of the present application.
  • a first TCI state and a second TCI state are activated for at least one code point among the eight code points
  • the second indication information (DCI) indicates the first TCI state and the second TCI state on a code point
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state
  • the second TCI state on the code point includes: a second DL/joint TCI state
  • the predefined terminal device updates the first TCI state of the application according to the first DL/joint TCI state and the first UL TCI state (updates the applied "first DL/joint TCI state and first UL TCI state" with the indicated "first DL/joint TCI state").
  • the third indication information indicates the application of the first TCI state or the second TCI state and the unified TCI state set includes the first TCI state and the second TCI state
  • the second indication information indicates the first TCI state
  • the first TCI state of the application is updated according to the indicated first TCI state
  • the second indication information indicates the second TCI state
  • the third indication information indicates the application of the first TCI state or the second TCI state (the terminal device works on the sTRP CC) and the first TCI state and the second TCI state are included in the unified TCI state (unified TCI state) set (the reference CC is the mTRP CC), for example, the TCI state of the sTRP in which the terminal device works is the first TCI state, and the predefined terminal device updates the first TCI state of the application according to the indicated first TCI state; or, the predefined terminal device updates the first TCI state of the application according to the indicated second TCI state.
  • the second indication information only indicates the first TCI state, for example, the first TCI state includes indicating the first DL/joint TCI state and/or the first UL TCI state; the second indication information only indicates the second TCI state, for example, the second TCI state includes indicating the second DL/joint TCI state and/or the second UL TCI state.
  • Figure 8 is another example diagram for determining the first TCI state and/or second TCI state of an application according to an embodiment of the present application; for example, a first TCI state and a second TCI state are activated for at least one code point among eight code points in the first indication information (MAC CE), and the second indication information (DCI) only indicates the first TCI state on one code point, for example, the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state, and the predefined terminal device updates the first TCI state (including the first DL/joint TCI state and the first UL TCI state) of the application according to the first DL/joint TCI state and the first UL TCI state.
  • MAC CE first indication information
  • DCI second indication information
  • the terminal device confirms the first TCI state and/or second TCI state of the application based on the first field of the first indication information and the second indication information.
  • the first field of the first indication information applies 1 bit reserved in the MAC CE format as a new field.
  • the name of the first field of the first indication information is "TCI new filed", which is used to indicate the application method of TCI state.
  • FIG9 is an example diagram of the first field of the first indication information of an embodiment of the present application; for example, a reserved bit “R” in FIG9 is used as "TCI new filed", for example, FIG9 only illustrates "TCI new filed", and the first indication information can be in Rel-17 MAC CE format or Rel-18 MAC CE format, and there is no limitation on this.
  • the first value of the first field of the first indication information is "0", and the second value is "1"
  • the first value of the first field of the optional first indication information is "1", and the second value is "0" and there is no limitation on this in the present application.
  • the terminal device determines the first TCI state and the second TCI state of the application based on the first field of the first indication information and the second indication information; or, determines the first TCI state or the second TCI state of the application based on the first field of the first indication information and the second information indication information.
  • the third indication information indicates that the first TCI state and the second TCI state are applied and the unified TCI state set includes the first TCI state or the second TCI state
  • the second indication information indicates the first TCI state or the second TCI state
  • the first field of the first indication information takes a first value
  • the first field of the first indication information takes a second value
  • the terminal device when it is determined according to the above embodiment that the third indication information indicates the application of the first TCI state and the second TCI state (the terminal device operates on the mTRP CC) and when it is determined according to the above embodiment that only the first TCI state or only the second TCI state is included in the unified TCI state set (the reference CC is the sTRP CC), when the second indication information indicates the first TCI state or the second TCI state, and when the first field of the first indication information takes the first value, the terminal device updates the applied first TCI state according to the indicated first TCI state or second TCI state and maintains the second TCI state unchanged. or, when the first field of the first indication information takes a second value, the terminal device updates the second TCI state of the application according to the indicated first TCI state or second TCI state and maintains the first TCI state unchanged.
  • Figure 10A is another example diagram of the first TCI state and/or second TCI state of the application determined in the embodiment of the present application
  • Figure 10B is another example diagram of the first TCI state and/or second TCI state of the application determined in the embodiment of the present application.
  • the first indication information (MAC CE) only the first TCI state is activated for 8 code points, and the second indication information (DCI) indicates the first TCI state on a code point.
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state.
  • the first TCI state (including the first DL/joint TCI state and/or the first UL TCI state) of the application is updated according to the first TCI state indicated by the second indication information (DCI) and the second TCI state (including the second DL/joint TCI state and/or the second UL TCI state) is maintained unchanged.
  • DCI second indication information
  • the second TCI state (including the second DL/joint TCI state and/or the second UL TCI state) of the application is updated according to the first TCI state indicated by the second indication information (DCI) and the first TCI state (including the first DL/joint TCI state and/or the first UL TCI state) is maintained unchanged.
  • the third indication information indicates the application of the first TCI state or the second TCI state and the unified TCI state set includes the first TCI state and the second TCI state
  • the second indication information indicates the first TCI state and the second TCI state
  • the first field of the first indication information takes a first value
  • the first TCI state of the updated application is determined according to the indicated first TCI state
  • the first field of the first indication information takes a second value
  • the third indication information indicates the application of the first TCI state or the second TCI state (the terminal device operates on the sTRP CC) and when the second indication information indicates the first TCI state and the second TCI state (the reference CC is the mTRP CC), for example, the TCI state of the sTRP in which the terminal device operates is the first TCI state.
  • the terminal device updates the first TCI state of the application according to the indicated first TCI state; and
  • the terminal device updates the first TCI state of the application according to the indicated second TCI state.
  • the TCI field of the second indication information indicates at least one of the following combinations of the first TCI state and the second TCI state: the TCI field of the DCI indicates 2 DL/joint TCI states and 2 UL TCI states (respectively recorded as the first DL/joint TCI state, the second DL/joint TCI state, the first UL TCI state, and the second UL TCI state); the TCI field of the DCI indicates 2 DL/joint TCI states (respectively recorded as the first DL/joint TCI state and the second DL/joint TCI state), and/or, "the first UL TCI state or the second UL TCI state"; the TCI field of the DCI indicates 2 indicated UL TCI states (respectively recorded as the first UL TCI state and the second UL TCI state), and/or, "the first DL/joint TCI state or the second DL/joint TCI state".
  • Figure 10C is another example diagram of the first TCI state and/or second TCI state of the application determined in the embodiment of the present application
  • Figure 10D is another example diagram of the first TCI state and/or second TCI state of the application determined in the embodiment of the present application.
  • a first TCI state and a second TCI state are activated for at least one code point among the eight code points in the first indication information (MAC CE), and the second indication information (DCI) indicates a first TCI state and a second TCI state on a code point.
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state
  • the second TCI state on the code point includes: a second UL TCI state.
  • the terminal device updates the first TCI state of the application according to the indicated first TCI state.
  • the terminal device updates the first TCI state of the application according to the first DL/joint TCI state and the first UL TCI state (updates the "first DL/joint TCI state and the first UL TCI state" of the application according to the indicated "first DL/joint TCI state and the first UL TCI state").
  • a first TCI state and a second TCI state are activated for at least one code point among the eight code points in the first indication information (MAC CE), and the second indication information (DCI) indicates the first TCI state and the second TCI state on a code point.
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state
  • the second TCI state on the code point includes: a second UL TCI state.
  • the terminal device updates the applied first TCI state according to the second UL TCI state (updates the applied "first UL TCI state” according to the indicated "second UL TCI state"), and maintains the original first DL/joint TCI state unchanged.
  • the third indication information indicates that the first TCI state or the second TCI state is applied and the unified TCI state set includes the first TCI state and the second TCI state
  • the second indication information indicates the first TCI state or the second TCI state
  • the first field of the first indication information takes a first value
  • the first field of the first indication information takes a second value
  • Figure 10E is another example diagram of the first TCI state and/or second TCI state of the application determined in the embodiment of the present application
  • Figure 10F is another example diagram of the first TCI state and/or second TCI state of the application determined in the embodiment of the present application.
  • a first TCI state and a second TCI state are activated for at least one code point among the eight code points in the first indication information (MAC CE), and the second indication information (DCI) indicates a first TCI state on a code point.
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state.
  • the terminal device updates the first TCI state of the application according to the indicated first TCI state.
  • the terminal device updates the first TCI state of the application according to the first DL/joint TCI state and the first UL TCI state (updates the "first DL/joint TCI state and the first UL TCI state" of the application according to the indicated "first DL/joint TCI state and the first UL TCI state").
  • a first TCI state and a second TCI state are activated for at least one code point among the eight code points in the first indication information (MAC CE), and the second indication information (DCI) indicates a first TCI state on a code point.
  • the first TCI state on the code point includes: a first DL/joint TCI state and a first UL TCI state.
  • the terminal device does not update the applied "first DL/joint TCI state and first UL TCI state" (maintains the original "first DL/joint TCI state and first UL TCI state").
  • the terminal device determines the first TCI state and/or the second TCI state to be applied after receiving the first indication information and the second indication information.
  • the terminal device can clearly apply the (updated and/or maintained) TCI state, so that the uplink data can be accurately sent and the downlink data can be received, and Unifies the understanding of user behavior between network devices and terminal devices.
  • the embodiment of the present application provides a data transmission method, which is applied to a network device side.
  • the embodiment of the present application can be combined with the embodiment of the first aspect, or can be implemented separately. The same contents as the embodiment of the first aspect are not repeated here.
  • FIG. 11 is a schematic diagram of a data sending method according to an embodiment of the present application. As shown in FIG. 11 , the method includes:
  • a network device sends first indication information to a terminal device, wherein the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the network device sends second indication information to the terminal device, wherein the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set;
  • the terminal device determines the first TCI state and the second TCI state of the application according to the second indication information; or when the unified TCI state set includes the first TCI state and the second TCI state, the terminal device determines the first TCI state or the second TCI state of the application according to the second indication information.
  • the terminal device determines the first TCI state and/or the second TCI state of the application.
  • the terminal device can clearly identify the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • the relevant contents of the "first indication information”, “second indication information”, “first TCI state” and “second TCI state” can be found in the embodiments of the second aspect and will not be repeated here.
  • FIG. 11 is only a schematic illustration of the embodiment of the present application, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 11.
  • the terminal device determines the first TCI state and/or the second TCI state of the application after receiving the first indication information and the second indication information.
  • the terminal device can clearly define the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • the embodiment of the present application provides a data receiving device, which may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated.
  • FIG12 is a schematic diagram of a data receiving device according to an embodiment of the present application. As shown in FIG12 , the data receiving device 1200 includes:
  • a receiving unit 1201 receives first indication information, wherein the first indication information indicates a unified transmission configuration indication state (unified TCI state) set, wherein the unified transmission configuration indication state (unified TCI state) set includes a first transmission configuration indication state (TCI state) and/or a second transmission configuration indication state (TCI state);
  • unified TCI state unified transmission configuration indication state
  • TCI state first transmission configuration indication state
  • TCI state second transmission configuration indication state
  • the receiving unit 1201 further receives second indication information, wherein the second indication information indicates the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) in the unified transmission configuration indication state (unified TCI state) set;
  • a determination unit 1202 which determines the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state) of the application according to the second indication information when the unified transmission configuration indication state (TCI state) set includes the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state); or, when the unified transmission configuration indication state (TCI state) set includes the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state), determines the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state) of the application according to the second indication information.
  • the terminal device determines the first TCI state and/or the second TCI state of the application.
  • the terminal device can clearly identify the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • the first transmission configuration indication state includes at least one of the following: a first downlink transmission configuration indication state (TCI state), a first uplink transmission configuration indication state (TCI state), and a first joint transmission configuration indication state (TCI state);
  • the second transmission configuration indication state includes at least one of the following: a second downlink transmission configuration indication state (TCI state), a second uplink transmission configuration indication state (TCI state), and a second joint transmission configuration indication state (TCI state).
  • the unified transmission configuration indication state (unified TCI state) set includes at least one of the following transmission configuration indication state (TCI state) combinations: a first downlink transmission configuration indication state (TCI state), a second downlink transmission configuration indication state (TCI state), a first uplink transmission configuration indication state (TCI state), and a second uplink transmission configuration indication state (TCI state); a first downlink transmission configuration indication state (TCI state), a second downlink transmission configuration indication state (TCI state), and a first uplink transmission configuration indication state (TCI state).
  • TCI state transmission configuration indication state
  • first downlink transmission configuration indication state TCI state
  • second downlink transmission configuration indication state TCI state
  • second uplink transmission configuration indication state TCI state
  • first downlink transmission configuration indication state TCI state
  • second downlink transmission configuration indication state TCI state
  • first downlink transmission configuration indication state TCI state
  • first uplink transmission configuration indication state TCI state
  • second uplink transmission configuration indication state TCI state
  • first downlink transmission configuration indication state TCI state
  • second downlink transmission configuration indication state TCI state
  • first uplink transmission configuration indication state TI state
  • second uplink transmission configuration indication state TCI state
  • second downlink transmission configuration indication state TCI state
  • first uplink transmission configuration indication state TCI state
  • second uplink transmission configuration indication state TCI state
  • second downlink transmission configuration indication state TCI state
  • first uplink transmission configuration indication state TI state
  • second uplink transmission configuration indication state TCI state
  • second downlink transmission configuration indication state TCI state
  • first uplink transmission configuration indication state TI state
  • second downlink transmission configuration indication state TCI state
  • the first indication information is carried by a media access control element (MAC CE); the second indication information is carried by downlink control information (DCI); and the media access control element (MAC CE) is in the first format or the second format.
  • MAC CE media access control element
  • the receiving unit 1201 further receives third indication information, wherein the third indication information indicates applying the first transmission configuration indication state (TCI state) and the second transmission configuration indication state. (TCI state), or, the third indication information indicates application of the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state).
  • the third indication information when the third indication information is configured with the first parameter and/or the second parameter, the third indication information indicates the application of the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state); when the third indication information is not configured with the first parameter and/or the second parameter, the third indication information indicates the application of the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state).
  • the third indication information when the third parameter of the third indication information configuration takes a first value, the third indication information indicates the application of the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state); when the third parameter of the third indication information configuration takes a second value, the third indication information indicates the application of the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state).
  • the determination unit 1202 determines the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state) according to the indicated first transmission configuration indication state (TCI state) or the indicated second transmission configuration indication state (TCI state).
  • the determining unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state) or the indicated second transmission configuration indication state (TCI state), and maintains the first transmission configuration indication state (TCI state) of the application unchanged when the second indication information indicates the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state); or when the second indication information indicates the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state), the determining unit 1202 determines to update the second transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state) or the indicated second transmission configuration indication state (TCI state), and maintains the first transmission configuration indication state (TCI state) of the application unchanged.
  • the determining unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state); or the determining unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated second transmission configuration indication state (TCI state).
  • the determination unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state); or when the second indication information indicates the second transmission configuration indication state (TCI state), the determination unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated second transmission configuration indication state (TCI state).
  • the determination unit 1202 determines the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state) of the application based on the first field of the first indication information and the second indication information; or determines the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state) of the application based on the first field of the first indication information and the second indication information.
  • the determining unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state) or the indicated second transmission configuration indication state (TCI state), and maintain the second transmission configuration indication state (TCI state) of the application unchanged; and when the first field of the first indication information takes a second value, the determining unit 1202 determines to update the second transmission configuration indication state of the application according to the indicated first transmission configuration indication state (TCI state) or the indicated second transmission configuration indication state (TCI state). state (TCI state)
  • the determination unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state); and when the first field of the first indication information takes a second value, the determination unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated second transmission configuration indication state (TCI state).
  • the determination unit 1202 determines to update the first transmission configuration indication state (TCI state) of the application according to the indicated first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state); when the first field of the first indication information takes a second value, the determination unit 1202 determines not to update the first transmission configuration indication state (TCI state) of the application.
  • the third indication information is carried via radio resource control (RRC) signaling.
  • RRC radio resource control
  • the first indication information indicates the unified transmission configuration indication state (unified TCI state) set of the first component carrier (CC); the determination unit 1202 determines the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) applied on the second component carrier (CC).
  • unified TCI state unified TCI state
  • the determination unit 1202 determines the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) applied on the second component carrier (CC).
  • the first component carrier (CC) is a reference component carrier (CC)
  • the second component carrier (CC) is the same as or different from the first component carrier (CC).
  • the second component carrier (CC) is different from the first component carrier (CC).
  • the second component carrier (CC) and the first component carrier (CC) belong to the same first list;
  • the first list includes simultaneous update transmission configuration indication (TCI) update list 1 (simultaneousU-TCI-UpdateList1) to simultaneous update transmission configuration indication (TCI) update list 4 (simultaneousU-TCI-UpdateList4).
  • the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) includes a unified transmission configuration indication state (unified TCI state).
  • the first format is the Media Access Control Element (MAC CE) format in version 17; the second format is the Media Access Control Element (MAC CE) format in version 18.
  • MAC CE Media Access Control Element
  • the data receiving device 1200 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 12 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device determines the first TCI state and/or the second TCI state of the application after receiving the first indication information and the second indication information.
  • the terminal device can clearly define the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • the embodiment of the present application provides a data sending device, which may be, for example, a network device, or may be one or more components or assemblies configured in the network device, and the same contents as those in the embodiment of the second aspect will not be repeated.
  • a data sending device which may be, for example, a network device, or may be one or more components or assemblies configured in the network device, and the same contents as those in the embodiment of the second aspect will not be repeated.
  • FIG13 is a schematic diagram of a data transmission device according to an embodiment of the present application. As shown in FIG13 , the data transmission device 1300 includes:
  • the sending unit 1301 sends a first indication message to the terminal device, wherein the first indication message indicates that the system a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the sending unit 1301 further sends second indication information to the terminal device, wherein the second indication information indicates the first transmission configuration indication state (TCI state) and/or the second transmission configuration indication state (TCI state) in the unified transmission configuration indication state (unified TCI state) set;
  • the terminal device includes
  • the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state) of the application are determined according to the second indication information; or, in a case where the unified transmission configuration indication state (unified TCI state) set includes the first transmission configuration indication state (TCI state) and the second transmission configuration indication state (TCI state), the first transmission configuration indication state (TCI state) or the second transmission configuration indication state (TCI state) of the application is determined according to the second indication information.
  • the terminal device determines the first TCI state and/or the second TCI state of the application.
  • the terminal device can clearly identify the (updated and/or maintained) TCI state of the application, so that uplink data can be accurately sent and downlink data can be received, and the understanding of user behavior by the network device and the terminal device is unified.
  • the data sending device 1300 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 13 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device determines the application after receiving the first indication information and the second indication information.
  • the first TCI state and/or the second TCI state are included in the terminal device.
  • the terminal device can clearly apply the (updated and/or maintained) TCI state, so that the uplink data can be sent and the downlink data can be received accurately, and the understanding of the user behavior of the network device and the terminal device is unified.
  • An embodiment of the present application also provides a communication system, and reference may be made to FIG1 .
  • the contents that are the same as those of the embodiments of the first to fourth aspects will not be repeated herein.
  • the communication system 100 may include at least: a network device and a terminal device, wherein:
  • a network device which sends first indication information, wherein the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state; and sends second indication information, wherein the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set;
  • a terminal device which receives the first indication information and the second indication information; when the unified TCI state set includes the first TCI state or the second TCI state, determines the first TCI state and the second TCI state of the application according to the second indication information; or when the unified TCI state set includes the first TCI state and the second TCI state, determines the first TCI state or the second TCI state of the application according to the second indication information.
  • An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
  • a network device which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
  • FIG14 is a schematic diagram of the composition of a network device according to an embodiment of the present application.
  • the network device 1400 may include: a processor 1410 (e.g., a central processing unit CPU) and a memory 1420; the memory 1420 is coupled to the processor 1410.
  • the memory 1420 may store various data; in addition, it may store a program 1430 for information processing, and the program 1430 may be executed under the control of the processor 1410.
  • the network device 1400 may further include: a transceiver 1440 and an antenna 1450, etc.; wherein the functions of the above components are similar to those of the prior art and are not described in detail here. It is worth noting that the network device 1400 does not necessarily include all the components shown in FIG14 ; in addition, the network device 1400 may also include components not shown in FIG14 , which may refer to the prior art.
  • the embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.
  • FIG15 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 1500 may include a processor 1510 and a memory 1520; the memory 1520 stores data and programs and is coupled to the processor 1510. It is worth noting that the figure is exemplary; other types of structures may also be used to supplement or replace the structure to implement telecommunication functions or other functions.
  • the processor 1510 may be configured to execute a program to implement the data receiving method as described in the embodiment of the first aspect.
  • the processor 1510 may be configured to perform the following control: receiving first indication information, wherein the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state; receiving second indication information, wherein the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set; in the case where the unified TCI state set includes the first TCI state or the second TCI state, determining the first TCI state and the second TCI state of the application according to the second indication information; or in the case where the unified TCI state set includes the first TCI state and the second TCI state, determining the first TCI state or the second TCI state of the application according to the second indication information.
  • the terminal device 1500 may further include: a communication module 1530, an input unit 1540, a display 1550, and a power supply 1560.
  • the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1500 does not necessarily include all the components shown in FIG15 , and the above components are not necessary; in addition, the terminal device 1500 may also include components not shown in FIG15 , and reference may be made to the prior art.
  • An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to execute the data receiving method described in the embodiment of the first aspect.
  • An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the data receiving method described in the embodiment of the first aspect.
  • An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the data sending method described in the embodiment of the second aspect.
  • An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the data sending method described in the embodiment of the third aspect.
  • the above apparatus and method of the present application can be implemented by hardware, or by hardware combined with software.
  • the present application relates to such a computer readable program, which, when executed by a logic component, enables the logic component to implement The apparatus or components described above, or the logic components implement the various methods or steps described above.
  • the present application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, etc.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to various software modules of the computer program flow or to various hardware modules.
  • These software modules may correspond to the various steps shown in the figure, respectively.
  • These hardware modules may be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).
  • FPGA field programmable gate array
  • the software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor.
  • the processor and the storage medium may be located in an ASIC.
  • the software module may be stored in a memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.
  • the functional blocks described in the drawings and/or one or more combinations of functional blocks it can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof for performing the functions described in the present application.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field programmable gate array
  • it can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a data receiving method applied to a terminal device, wherein the method comprises:
  • Receive first indication information wherein the first indication information indicates a unified TCI state A set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set
  • the unified TCI state set includes the first TCI state or the second TCI state, determining the first TCI state and the second TCI state of the application according to the second indication information;
  • the first TCI state or the second TCI state to be applied is determined according to the second indication information.
  • the first TCI state includes at least one of the following: a first downlink TCI state, a first uplink TCI state, and a first joint TCI state;
  • the second TCI stat includes at least one of the following: a second downlink TCI state, a second uplink TCI state, and a second combined TCI state.
  • First downlink TCI state second downlink TCI state, first uplink TCI state;
  • First downlink TCI state second downlink TCI state, second uplink TCI state;
  • First downlink TCI state second downlink TCI state
  • First downlink TCI state first uplink TCI state, second uplink TCI state;
  • First downlink TCI state first uplink TCI state
  • the first is the downlink TCI state
  • the second is the uplink TCI state
  • Second downlink TCI state first uplink TCI state, second uplink TCI state;
  • the second downstream TCI state the first upstream TCI state
  • Second downlink TCI state second uplink TCI state
  • First uplink TCI state second uplink TCI state
  • the MAC CE is in the first format or the second format.
  • Receive third indication information wherein the third indication information indicates applying the first TCI state and the second TCI state, or the third indication information indicates applying the first TCI state or the second TCI state.
  • the third indication information indicates application of the first TCI state and the second TCI state
  • the third indication information When the third indication information does not configure the first parameter and/or the second parameter, the third indication information indicates applying the first TCI state or the second TCI state.
  • the third indication information indicates application of the first TCI state and the second TCI state;
  • the third indication information indicates applying the first TCI state or the second TCI state.
  • determining the first TCI state and the second TCI state of the application according to the second indication information comprises:
  • the third indication information indicates that the first TCI state and the second TCI state are applied and the unified TCI state set includes the first TCI state or the second TCI state
  • the second indication information indicates the first TCI state or the second TCI state
  • the second indication information indicates the first TCI state or the second TCI state
  • determining the first TCI state or the second TCI state of the application according to the second indication information comprises:
  • the third indication information indicates to apply the first TCI state or the second TCI state and the unified TCI state set includes the first TCI state and the second TCI state
  • the second indication information indicates the first TCI state and the second TCI state
  • determining the first TCI state or the second TCI state of the application according to the second indication information comprises:
  • the third indication information indicates to apply the first TCI state or the second TCI state and the unified TCI state set includes the first TCI state and the second TCI state
  • the information indicates that the first TCI state or the second TCI state is determined by the information.
  • determining the first TCI state and the second TCI state of the application comprises:
  • the third indication information indicates that the first TCI state and the second TCI state are applied and the unified TCI state set includes the first TCI state or the second TCI state
  • the second indication information indicates the first TCI state or the second TCI state
  • the first field of the first indication information takes a first value, determining to update the first TCI state of the application according to the indicated first TCI state or the indicated second TCI state, and maintaining the second TCI state of the application unchanged;
  • determining whether to update the second TCI state of the application and to maintain the first TCI state of the application unchanged is determined according to the indicated first TCI state or the indicated second TCI state.
  • determining the first TCI state or the second TCI state of the application comprises:
  • the third indication information indicates to apply the first TCI state or the second TCI state and the unified TCI state set includes the first TCI state and the second TCI state
  • the second indication information indicates the first TCI state and the second TCI state
  • the first TCI state of the updated application is determined according to the indicated second TCI state.
  • a method wherein, when the third indication information indicates that the first TCI state or the second TCI state is applied and the unified TCI state set includes the first TCI state and the second TCI state, when the second indication information indicates the first TCI state or the second TCI state, when the first field of the first indication information takes a first value, determining to update the first TCI state of the application according to the indicated first TCI state or the second TCI state; and when the first field of the first indication information takes a second value, determining not to update the application The first TCI state.
  • the first indication information indicates the unified TCI state set of the first component carrier (CC); the terminal device determines the first TCI state and/or the second TCI state to be applied on the second component carrier (CC).
  • first component carrier is a reference component carrier (CC)
  • second component carrier is the same as or different from the first component carrier (CC).
  • the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state;
  • the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set
  • the terminal device when the unified TCI state set includes the first TCI state or the second TCI state, determines the first TCI state and the second TCI state to be applied according to the second indication information; or when the unified TCI state set includes the first TCI state and the second TCI state, determines the first TCI state and the second TCI state to be applied according to the second indication information.
  • the first TCI state or the second TCI state of a certain application when the unified TCI state set includes the first TCI state or the second TCI state, determines the first TCI state and the second TCI state to be applied according to the second indication information.
  • a terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the data receiving method as described in any one of Notes 1 to 21.
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the data sending method as described in Note 22.
  • a communication system comprising:
  • a network device which sends first indication information, wherein the first indication information indicates a unified TCI state set, wherein the unified TCI state set includes a first TCI state and/or a second TCI state; and sends second indication information, wherein the second indication information indicates the first TCI state and/or the second TCI state in the unified TCI state set;
  • a terminal device which receives the first indication information and the second indication information
  • the unified TCI state set includes the first TCI state or the second TCI state, determining the first TCI state and the second TCI state of the application according to the second indication information;
  • the first TCI state or the second TCI state to be applied is determined according to the second indication information.

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

Abstract

Les modes de réalisation de la présente demande concernent un procédé et un appareil de réception de données, ainsi qu'un procédé et un appareil de transmission de données. Le procédé de réception de données comprend les étapes selon lesquelles : un dispositif terminal reçoit des premières informations d'indication, les premières informations d'indication indiquant un ensemble d'états TCI unifié, et l'ensemble d'états TCI unifié comprenant un premier état TCI et/ou un second état TCI ; reçoit des secondes informations d'indication, les secondes informations d'indication indiquant le premier état TCI et/ou le second état TCI dans l'ensemble d'états TCI unifié ; et lorsque l'ensemble d'états TCI unifié comprend le premier état TCI ou le second état TCI, détermine, selon les secondes informations d'indication, le premier état TCI et le second état TCI qui sont appliqués, ou lorsque l'ensemble d'états TCI unifié comprend le premier état TCI et le second état TCI, détermine, selon les secondes informations d'indication, le premier état TCI ou le second état TCI qui est appliqué.
PCT/CN2023/086652 2023-04-06 2023-04-06 Procédé et appareil de réception de données, procédé et appareil de transmission de données Ceased WO2024207331A1 (fr)

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