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WO2025060013A1 - Procédé, appareil, dispositif et système de communication, ainsi que support de stockage - Google Patents

Procédé, appareil, dispositif et système de communication, ainsi que support de stockage Download PDF

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Publication number
WO2025060013A1
WO2025060013A1 PCT/CN2023/120516 CN2023120516W WO2025060013A1 WO 2025060013 A1 WO2025060013 A1 WO 2025060013A1 CN 2023120516 W CN2023120516 W CN 2023120516W WO 2025060013 A1 WO2025060013 A1 WO 2025060013A1
Authority
WO
WIPO (PCT)
Prior art keywords
trp
tci state
terminal
moment
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/120516
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English (en)
Chinese (zh)
Inventor
陶旭华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2023/120516 priority Critical patent/WO2025060013A1/fr
Priority to CN202380011238.1A priority patent/CN117546438A/zh
Publication of WO2025060013A1 publication Critical patent/WO2025060013A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

Definitions

  • the terminal when the terminal receives a first signaling sent by at least one TRP, the terminal determines a first time; wherein the first signaling is used by the TRP to instruct the terminal to activate the transmission configuration indication TCI state state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • the terminal receives the first channel sent by the TRP based on the first moment.
  • a communication method for use in a communication system, the communication system comprising a TRP and a terminal, the method comprising at least one of the following:
  • the TRP determines a first time; wherein the first signaling is used by the TRP to instruct the terminal to activate the TCI state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • the TRP sends a first channel to the terminal based on the first time
  • the terminal when the terminal receives a first signaling sent by at least one TRP, the terminal determines a first time;
  • a processing module used in an MDCI transmission scenario of an MTRP, when sending a first signaling to a terminal, the TRP determines a first moment; wherein the first signaling is used by the TRP to instruct the terminal to activate a transmission configuration indication TCI state state, and the first moment is used to indicate: the activation completion moment of the TCI state to be activated by at least one TRP in the MTRP;
  • a sending module is used for the TRP to send a first channel to the terminal based on the first moment.
  • a terminal comprising at least one of the following:
  • a processing module used in an MDCI transmission scenario of MTRP, when receiving a first signaling sent by at least one TRP, determines a first time; wherein the first signaling is used by the TRP to indicate the terminal to activate the transmission configuration indication TCI state state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • a receiving module is used to receive the first channel sent by the TRP based on the first moment.
  • a communication device including:
  • One or more processors are One or more processors;
  • the processor is used to call instructions so that the communication device executes the communication method described in the first aspect or the second aspect.
  • a communication system includes a TRP and a terminal, wherein the TRP is configured to implement the communication method described in the first aspect, and the terminal is configured to implement the communication method described in the second aspect.
  • a storage medium stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.
  • FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure.
  • FIG2A1 is an interactive schematic diagram of a communication method provided by an embodiment of the present disclosure
  • Figure 2A2 is a schematic diagram of the structure of MAC CE signaling according to an embodiment of the present disclosure
  • FIG2A3 is a schematic structural diagram of the first time slot and the first time moment corresponding to different TRPs according to an embodiment of the present disclosure
  • FIG2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.
  • 3A-3C are flowchart diagrams of a communication method provided in yet another embodiment of the present disclosure.
  • 4A-4C are flowchart diagrams of a communication method provided in yet another embodiment of the present disclosure.
  • FIG5A is a flow chart of a communication method provided by yet another embodiment of the present disclosure.
  • FIG5B is a schematic structural diagram corresponding to scenario 1 according to an embodiment of the present disclosure.
  • FIG5C is a schematic structural diagram corresponding to scenario 2 according to an embodiment of the present disclosure.
  • FIG6A is a schematic diagram of the structure of a TRP provided by an embodiment of the present disclosure.
  • FIG6B is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure.
  • FIG7A is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure.
  • FIG. 7B is a schematic diagram of the structure of a chip provided by an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a communication method and apparatus, a communication device, a communication system, and a storage medium.
  • an embodiment of the present disclosure provides a communication method, which is performed by a TRP, and the method includes at least one of the following:
  • a TRP when a TRP sends a first signaling to a terminal, the TRP determines a first moment; wherein the first signaling is used by the TRP to instruct the terminal to activate a transmission configuration indication TCI state state, and the first moment is used to indicate: the activation completion moment of the TCI state to be activated by at least one TRP in the MTRP;
  • the TRP sends a first channel to the terminal based on the first moment.
  • a method of "how to determine the activation completion time of the TCI state to be activated by at least one TRP in the TRP" is provided, so that the activation completion time of the TCI state to be activated by at least one TRP in the TRP can be successfully determined, thereby facilitating the TRP and the terminal to subsequently successfully implement channel transmission based on the activated TCI state based on the determined activation time, thereby ensuring the successful activation and successful use of the TCI state in the MDCI transmission scenario of MTRP, and ensuring communication stability.
  • the first signaling is used by the TRP to instruct the terminal to activate a TCI state in a TCI state set corresponding to the TRP; wherein different TRPs correspond to TCI state sets respectively, and the TCI state set includes at least one TCI state;
  • the method further comprises:
  • the method disclosed in the present invention can be applied to the MDCI transmission scenario of MTRP.
  • the TRP instructs the terminal to activate a TCI state in the TCI state set corresponding to the TRP
  • the corresponding activation completion time is determined.
  • a corresponding TCI state set is maintained for each TRP, so that the TRP can activate a TCI state in the corresponding TCI state set. Therefore, the TRP can switch to activate different TCI states in the corresponding TCI state set, which has high flexibility.
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment corresponding to the TRP is determined as the first moment corresponding to the TRP, wherein the first moments corresponding to different TRPs are the same or different.
  • sending the first channel to the terminal based on the first time includes at least one of the following:
  • a first channel is sent to the terminal based on a first TCI state corresponding to the TRP; wherein the first TCI state is: before the TRP sends the first signaling to the terminal, the TCI state used when the first channel is sent and/or received between the TRP and the terminal;
  • a first channel is sent to the terminal based on the first TCI state corresponding to the TRP, or a first channel is sent to the terminal based on the second TCI state corresponding to the TRP; wherein the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP.
  • a specific method is provided for determining the first moment and determining which TCI state to use to send the first channel to the terminal based on the first moment, thereby achieving successful activation and use of the TCI state in the MDCI transmission scenario of the MTRP, and ensuring communication stability.
  • the method of the above embodiment can be applied to scenarios where there is no communication interaction between different TRPs in the MTRP, or to scenarios where there is communication interaction between different TRPs in the MTRP, and has a wide range of applications.
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment with the largest value among all the second moments corresponding to the MTRP is determined as the first moment, wherein the first moments corresponding to different TRPs are the same.
  • sending the first channel to the terminal based on the first time includes at least one of the following:
  • a first channel is sent to the terminal based on a first TCI state corresponding to the TRP, or a first channel is sent to the terminal based on a second TCI state corresponding to the TRP;
  • the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal;
  • the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP;
  • a first channel is sent to the terminal based on a second TCI state corresponding to the TRP.
  • another specific method is provided for determining the first moment and determining which TCI state to use to send the first channel to the terminal based on the first moment, thereby achieving successful activation and use of the TCI state in the MDCI transmission scenario of MTRP and ensuring communication stability.
  • an embodiment of the present disclosure provides a communication method, which is performed by a terminal, and the method includes at least one of the following:
  • the terminal when the terminal receives a first signaling sent by at least one TRP, the terminal determines a first time; wherein the first signaling is used by the TRP to instruct the terminal to activate the transmission configuration indication TCI state state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • the terminal receives the first channel sent by the TRP based on the first moment.
  • a method of "how to determine the activation completion time of the TCI state to be activated by at least one TRP in the TRP" is provided, so that the activation completion time of the TCI state to be activated by at least one TRP in the TRP can be successfully determined, thereby facilitating the TRP and the terminal to subsequently successfully implement channel transmission based on the activated TCI state based on the determined activation time, thereby ensuring the successful activation and successful use of the TCI state in the MDCI transmission scenario of MTRP, and ensuring communication stability.
  • the first signaling is used by the TRP to instruct the terminal to activate a TCI state in a TCI state set corresponding to the TRP; wherein different TRPs correspond to TCI state sets respectively, and the TCI state set includes at least one TCI state;
  • the method further comprises:
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment corresponding to the TRP is determined as the first moment corresponding to the TRP, wherein the first moments corresponding to different TRPs are the same or different.
  • the first channel receiving the TRP sent based on the first moment includes at least one of the following:
  • the first channel sent by the TRP is received based on the first TCI state corresponding to the TRP; wherein the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal;
  • the first channel sent by the TRP is received based on the first TCI state corresponding to the TRP, or the first channel sent by the TRP is received based on the second TCI state corresponding to the TRP; wherein the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP.
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment with the largest value among all the second moments corresponding to the MTRP is determined as the first moment, wherein the first moments corresponding to different TRPs are the same.
  • the first channel receiving the TRP sent based on the first moment includes at least one of the following:
  • the terminal After the terminal receives the first signaling sent by the TRP and before the first moment, the terminal receives the first channel sent by the TRP based on the first TCI state corresponding to the TRP, or receives the first channel sent by the TRP based on the second TCI state corresponding to the TRP; wherein the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal; the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP;
  • the first channel sent by the TRP is received based on the second TCI state corresponding to the TRP.
  • a communication method for use in a communication system, the communication system comprising a TRP and a terminal, the method comprising at least one of the following:
  • the TRP determines a first time; wherein the first signaling is used by the TRP to instruct the terminal to activate the TCI state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • the TRP sends a first channel to the terminal based on the first time
  • the terminal when the terminal receives a first signaling sent by at least one TRP, the terminal determines a first time;
  • the terminal receives the first channel sent by the TRP based on the first moment.
  • an embodiment of the present disclosure provides a TRP, comprising at least one of the following:
  • a processing module used in an MDCI transmission scenario of an MTRP, when sending a first signaling to a terminal, the TRP determines a first moment; wherein the first signaling is used by the TRP to instruct the terminal to activate a transmission configuration indication TCI state state, and the first moment is used to indicate: the activation completion moment of the TCI state to be activated by at least one TRP in the MTRP;
  • a sending module is used for the TRP to send a first channel to the terminal based on the first moment.
  • the first signaling is used by the TRP to instruct the terminal to activate a TCI state in a TCI state set corresponding to the TRP; wherein different TRPs correspond to TCI state sets respectively, and the TCI state set includes at least one TCI state;
  • the TRP is also used to:
  • the processing module is further used to:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment corresponding to the TRP is determined as the first moment corresponding to the TRP, wherein the first moments corresponding to different TRPs are the same or different.
  • the sending module is further used for at least one of the following:
  • a first channel is sent to the terminal based on a first TCI state corresponding to the TRP; wherein the first TCI state is: before the TRP sends the first signaling to the terminal, the TCI state used when the first channel is sent and/or received between the TRP and the terminal;
  • a first channel is sent to the terminal based on the first TCI state corresponding to the TRP, or a first channel is sent to the terminal based on the second TCI state corresponding to the TRP; wherein the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP.
  • the processing module is further used to:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment with the largest value among all the second moments corresponding to the MTRP is determined as the first moment, wherein the first moments corresponding to different TRPs are the same.
  • the sending module is further used for at least one of the following:
  • a first channel is sent to the terminal based on a first TCI state corresponding to the TRP, or a first channel is sent to the terminal based on a second TCI state corresponding to the TRP;
  • the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal;
  • the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP;
  • a first channel is sent to the terminal based on a second TCI state corresponding to the TRP.
  • an embodiment of the present disclosure provides a terminal, comprising at least one of the following:
  • a processing module used in an MDCI transmission scenario of MTRP, when receiving a first signaling sent by at least one TRP, determines a first time; wherein the first signaling is used by the TRP to indicate the terminal to activate the transmission configuration indication TCI state state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • a receiving module is used to receive the first channel sent by the TRP based on the first moment.
  • the first signaling is used by the TRP to instruct the terminal to activate a TCI state in a TCI state set corresponding to the TRP; wherein different TRPs correspond to TCI state sets respectively, and the TCI state set includes at least one TCI state;
  • the terminal is also used for:
  • the processing module is further used to:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment corresponding to the TRP is determined as the first moment corresponding to the TRP, wherein the first moments corresponding to different TRPs are the same or different.
  • the receiving module is further used for at least one of the following:
  • the first channel sent by the TRP is received based on the first TCI state corresponding to the TRP; wherein the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal;
  • the first channel sent by the TRP is received based on the first TCI state corresponding to the TRP, or the first channel sent by the TRP is received based on the second TCI state corresponding to the TRP; wherein the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP.
  • the processing module is further used to:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment with the largest value among all the second moments corresponding to the MTRP is determined as the first moment, wherein the first moments corresponding to different TRPs are the same.
  • the receiving module is further used for at least one of the following:
  • the terminal After the terminal receives the first signaling sent by the TRP and before the first moment, the terminal receives the first channel sent by the TRP based on the first TCI state corresponding to the TRP, or receives the first channel sent by the TRP based on the second TCI state corresponding to the TRP; wherein the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal; the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP;
  • the first channel sent by the TRP is received based on the second TCI state corresponding to the TRP.
  • an embodiment of the present disclosure proposes a communication device, wherein the communication device includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
  • an embodiment of the present disclosure proposes a communication system, which includes: a TRP and a terminal; wherein the TRP is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the terminal is configured to execute the method described in the second aspect and the optional implementation of the second aspect.
  • an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions.
  • the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
  • an embodiment of the present disclosure proposes a program product.
  • the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
  • an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
  • the present disclosure proposes the title of the invention.
  • the terms such as communication method and information communication method, information sending method, information receiving method, etc. can be replaced with each other, the terms such as communication device and information processing device, information sending device, information receiving device, etc. can be replaced with each other, and the terms such as information processing system, communication system, information sending system, information receiving system, etc. can be replaced with each other.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • the terms “at least one of”, “at least one of”, “at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • descriptions such as “at least one of A, B, C...”, “A and/or B and/or C...”, etc. include the case where any one of A, B, C... exists alone, and also include any combination of any multiple of A, B, C..., and each case may exist alone; for example, “at least one of A, B, C” includes the case where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and/or B includes the case where A exists alone, B exists alone, and the combination of A and B.
  • the description methods such as “in one case A, in another case B", “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: A is executed independently of B, that is, in some embodiments A; B is executed independently of A, that is, in some embodiments B; A and B are selectively executed, that is, selected from A and B in some embodiments; A and B are both executed, that is, A and B in some embodiments.
  • branches such as A, B, C, etc., it is similar to the above.
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute redundant restrictions due to the use of prefixes. For example, if the description object is a "field”, the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”, and the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • the description object is a "level”
  • the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments.
  • Terms such as “device”, “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.
  • network may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • terminal In some embodiments, the terms "terminal”, “terminal device”, “user equipment (UE)”, “user terminal”, “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client and the like can be used interchangeably.
  • the access network device, the core network device, or the network device can be replaced by a terminal.
  • the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by the communication between multiple terminals (for example, it can also be referred to as device-to-device (D2D), vehicle-to-everything (V2X), etc.).
  • D2D device-to-device
  • V2X vehicle-to-everything
  • the language such as "uplink” and "downlink” can also be replaced by the language corresponding to the communication between the terminals (for example, "side”).
  • the uplink channel, the downlink channel, etc. can be replaced by the side channel
  • the uplink, the downlink, etc. can be replaced by the side link.
  • the terminal may be replaced by an access network device, a core network device, or a network device.
  • the access network device, the core network device, or the network device may also be configured to have a structure that has all or part of the functions of the terminal.
  • the acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, or any columns may also be implemented as an independent embodiment.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • the communication system 100 may include a terminal and at least one network device (two network devices are included in FIG1 as an example).
  • the network device may include at least one of an access network device and a core network device.
  • the core network device may be a device including one or more network elements, or may be a plurality of devices or a group of devices, each including all or part of one or more network elements.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the core network device may also be a location management function network element.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, which may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 5G new radio NR
  • Future Radio Access FX
  • RAT New-Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Future generation radio access
  • GSM Global System for Mobile communications
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra Wideband (UWB)
  • Bluetooth registered trademark
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine to Machine
  • IoT Internet of Things
  • V2X Vehicle to-Everything
  • V2X Vehicle to-Everything
  • a number of systems may also be applied in combination (for example, combination of LTE or LTE-A with 5G, and the like).
  • the terminal and the TRP usually need to determine the activation delay when activating the TCI state required to activate the TRP.
  • the activation delay can be understood, for example, as: the activation time required for the terminal to activate the TCI state to be activated by the TRP.
  • the terminal and TRP can determine the activation completion time of the terminal for the TCI state to be activated by the TRP based on the activation delay, and after the activation completion time, start transmitting channels based on the activated TCI state corresponding to the TRP, such as transmitting the physical downlink shared channel (PDSCH).
  • PDSCH physical downlink shared channel
  • multi-transmission reception point (MTRP) transmission is introduced, wherein multi-downlink control information (MDCI) transmission is usually performed in MTRP.
  • MDCI multi-downlink control information
  • multiple TRPs will send DCI to the terminal respectively, and the DCI sent by each TRP is used to schedule the PDSCH of the TRP, that is, the DCI sent by each TRP can be used to indicate the transmission resources of "the PDSCH subsequently sent by the TRP", so that the terminal can receive the PDSCH subsequently sent by the TRP based on the DCI sent by each TRP.
  • the TRP also needs to send signaling for activating the TCI state to the terminal.
  • each TRP can send signaling for activating the TCI state to the terminal respectively, and after the terminal receives the signaling for activating the TCI state sent by different TRPs, it can activate the TCI state to be activated by the TRP, so that the PDSCH sent by the TRP can be received subsequently based on the TCI state corresponding to each TRP.
  • the current method for determining the activation completion time of the TCI state to be activated by TRP is not applicable to the MDCI transmission scenario of MTRP. Therefore, how to determine the activation completion time of the TCI state to be activated by each TRP in MTRP is a technical problem that needs to be solved urgently.
  • the time when the signaling sent by different TRPs to activate the TCI state arrives at the terminal may be different, and/or the activation delays corresponding to the TCI states required to be activated by different TRPs may also be different, which will cause the terminal to activate the TCI states corresponding to different TRPs at different completion times. It may happen that "the TCI states corresponding to some TRPs in the MTRP have been activated by the terminal, but the TCI states corresponding to another part of the TRP have not yet been activated". At this time, the specific TCI states based on which the terminal and TRP transmit the channel are also a technical problem that needs to be solved urgently.
  • FIG2A1 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2A1 , the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes:
  • Step 2101 In the MDCI transmission scenario of MTRP, at least one TRP configures a TCI state set corresponding to the TRP to the terminal.
  • the MTRP scenario may include multiple TRPs, for example, two TRPs may be included, wherein the figures in the embodiments of the present disclosure (such as FIG. 2A1 and subsequent FIG. 2A3 and FIG. 2B) are illustrated by taking the MTRP including two TRPs, which are TRP1 and TRP2, as an example.
  • TRP1 and TRP2 two TRPs
  • different TRPs in the MTRP may correspond to TCI state sets respectively, and the TCI state set may include at least one TCI state, wherein different TCI states may be used to determine different beams.
  • the TCI state sets corresponding to different TRPs are the same or different.
  • Different TCI states in the TCI state set may be arranged in the form of a list.
  • different TRPs in the MTRP may respectively configure the TCI state set corresponding to the TRP to the terminal.
  • the TRP may configure the TCI state set corresponding to the TRP to the terminal by sending a second signaling to the terminal.
  • the second signaling may be, for example, a Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the TCI state in the TCI state set may be a TCI state that is alternatively activated by the TRP.
  • the TRP configures the TCI state set corresponding to the TRP to the terminal so that the TRP can subsequently instruct the terminal to activate a TCI state in the TCI state set corresponding to the TRP, so that the terminal can realize channel transmission with the TRP based on the activated TCI state.
  • Step 2102 At least one TRP sends a first signaling to the terminal.
  • different TRPs in the MTRP may respectively send first signaling to the terminal.
  • the terminal may receive first signaling respectively sent by at least one TRP.
  • the first signaling may be used by the TRP to instruct the terminal to activate a TCI state.
  • the first signaling may be used by the TRP to instruct the terminal to activate a TCI state in a TCI state set corresponding to the TRP.
  • the first signaling may be, for example, a Media Access Control Control Element (MAC CE) signaling.
  • MAC CE Media Access Control Control Element
  • FIG. 2A2 is a schematic diagram of the structure of MAC CE signaling according to an embodiment of the present disclosure.
  • MAC CE Different positions in the signaling may correspond to different TCI states.
  • the above-mentioned TCI state set may include different TCI states and their corresponding serial numbers.
  • the values carried by different positions of the MAC CE signaling correspond to different TCI states
  • Step 2103 TRP determines the first time slot corresponding to the TRP.
  • the first time slot may be the first time slot when the terminal receives the first signaling sent by the TRP, wherein the first time slots corresponding to different TRPs may be the same or different.
  • each TRP can determine its own corresponding first time slot, that is, each TRP determines the first time slot when the first signaling sent by itself is received by the terminal.
  • the TRP can determine the first time slot corresponding to the TRP based on the starting time slot and/or channel status when it sends the first signaling.
  • the TRP can determine the transmission delay between it and the terminal, and the transmission delay can be understood as: the time required for transmission between the TRP and the terminal.
  • the TRP can determine the transmission delay based on the channel status, for example, or the TRP can determine the transmission delay based on its historical transmission with the terminal, and then the TRP can determine the first time slot corresponding to the TRP based on the starting time slot and transmission delay when it sends the first signaling.
  • Step 2104 The terminal determines the first time slot corresponding to at least one TRP.
  • the terminal can determine the first time slot corresponding to each TRP, that is, the terminal can determine the first time slot when the terminal receives the first signaling sent by each TRP.
  • Step 2105 TRP determines the second time corresponding to the TRP based on the first time slot corresponding to the TRP.
  • the second moment corresponding to the TRP can be used to indicate: the moment when the terminal completes activation of the TCI state to be activated by the TRP.
  • the second moments corresponding to different TRPs are the same or different.
  • each TRP may determine its own corresponding second moment, that is, each TRP determines the activation completion moment of the TCI state to be activated by itself.
  • the TRP may determine the second time corresponding to the TRP based on the following formula 1.
  • Formula 1 :
  • T delay is the second time corresponding to TRP.
  • n in the above formula 1 is the first time slot corresponding to the TRP
  • T HARQ in the above formula 1 is a hybrid automatic repeat request (HARQ) delay corresponding to the terminal, and the HARQ delay can be understood as, for example, a period between a third moment and a fourth moment, and the third moment can be, for example, a moment when the terminal receives the first signaling, and the fourth moment can be, for example, a moment when the terminal sends HARQ feedback (such as Acknowledgement (ACK) feedback) for the first signaling to the TRP;
  • HARQ feedback such as Acknowledgement (ACK) feedback
  • the above It is a fixed parameter known to the terminal and TRP.
  • the relevant parameters of the TCI state may be included in the synchronization signal block (SSB), wherein, after the terminal determines the TCI state to be activated, the terminal can obtain the relevant parameters corresponding to the TCI state to be activated by receiving and parsing the SSB, and activate the TCI state to be activated based on the determined relevant parameters. In other embodiments, for some TCI states that have been historically activated, the terminal may back up the relevant parameters of the TCI state that has been historically activated.
  • SSB synchronization signal block
  • the NR slot length in the above formula 1 may indicate the slot length of a time slot in a new radio (NR) system.
  • NR new radio
  • Step 2106 The terminal determines a second time moment corresponding to at least one TRP based on a first time slot corresponding to at least one TRP.
  • the terminal can determine the second time corresponding to each TRP based on the first time slot corresponding to each TRP.
  • the terminal can determine the second time points corresponding to TRP1 and TRP2 respectively based on the following formula 2.
  • T delay_TRP1 is the second moment corresponding to TRP1
  • n1 is the first time slot corresponding to TRP1
  • T delay_TRP2 is the second moment corresponding to TRP2
  • n2 is the first time slot corresponding to TRP2
  • T first-SSB_TRP1 is used to indicate the second time period
  • the starting moment of the second time period is: the moment when the terminal receives the first signaling sent by TRP1
  • the end moment of the second time period is: the moment when the terminal receives the SSB for the first time after receiving the first signaling sent by TRP1.
  • T first-SSB_TRP2 is used to indicate the third time period
  • the starting moment of the third time period is: the moment when the terminal receives the first signaling sent by TRP2
  • the end moment of the third time period is: the moment when the terminal receives the SSB for the first time after receiving the first signaling sent by TRP2.
  • Other parameters of the above formula can refer to the description of the above embodiment.
  • Step 2107 TRP determines the second moment corresponding to the TRP as the first moment corresponding to the TRP.
  • the TRP may determine the second moment corresponding to itself as the first moment corresponding to itself. For example, assuming that the second moment corresponding to the TRP itself is T delay , the terminal may determine T delay as the first moment corresponding to itself.
  • the first moment may be used to indicate: the activation completion moment of the TCI state to be activated by at least one TRP in the MTRP.
  • the terminal may determine the second moment corresponding to each TRP as the first moment corresponding to each TRP. For example, assuming that the MTRP includes two TRPs, namely TRP1 and TRP2, where the second moment corresponding to TRP1 is T delay_TRP1 ; the second moment corresponding to TRP2 is T delay_TRP2 , then the terminal may determine T delay_TRP1 as the first moment corresponding to TRP1, and determine T delay_TRP2 as the first moment corresponding to TRP2.
  • the first moment corresponding to each TRP is actually the activation completion moment of the TCI state to be activated by the TRP.
  • the first moments corresponding to different TRPs are the same or different.
  • the time period between the first time slot and the first moment corresponding to the TRP can be considered as the time period for the terminal to activate the TCI state to be activated by the TRP.
  • the TCI state to be activated by the TRP cannot be used for channel transmission between the terminal and the TRP.
  • the TCI state to be activated by the TRP can be used for channel transmission between the terminal and the TRP.
  • FIG2A3 is a schematic diagram of the structure of the first time slot and the first moment corresponding to different TRPs according to an embodiment of the present disclosure.
  • MAC CE1 may be the first signaling sent by TRP1
  • T activationDelay_TRP1 may be the activation delay required when the TCI state corresponding to TRP1 is activated by the terminal
  • MAC CE2 may be the first signaling sent by TRP2
  • T activationDelay_TRP2 may be the activation delay required when the TCI state corresponding to TRP2 is activated by the terminal
  • the first time slot corresponding to TRP1 may be located at time T0 in Figure 2A3
  • the first time corresponding to TRP1 may be time T2 in Figure 2A3.
  • TRP1 may perform channel transmission based on the activated TCI state 1.
  • TRP1 may schedule PDSCH 1 of TRP1 based on the activated TCI state 1.
  • the first time slot corresponding to TRP2 may be at time T1 in FIG. 2A3, and the first time corresponding to TRP2 may be time T3 in FIG. 2A3.
  • TRP2 may perform channel transmission based on the activated TCI state 2.
  • TRP2 can schedule PDSCH 2 of TRP2 based on the activated TCI state 2.
  • the first moment corresponding to different TRPs actually means: the moment when the terminal completes activation of the TCI state corresponding to the TRP (that is, the TCI state to be activated by the first signaling sent by the TRP). That is, for each TRP, before the first moment corresponding to the TRP, the TCI state corresponding to the TRP has not yet completed activation. At this time, the TCI state transmission channel corresponding to the TRP cannot be used between the TRP and the terminal; and, after the first moment corresponding to the TRP, the activation of the TCI state corresponding to the TRP is completed. At this time, the TCI state transmission channel corresponding to the TRP can be used between the TRP and the terminal.
  • Step 2109 The terminal activates the TCI states required by different TRPs.
  • the terminal may obtain relevant parameters of the TCI state to be activated by the TRP, and activate the corresponding TCI state based on the relevant parameters.
  • relevant parameters of the TCI state to be activated by the TRP, and activate the corresponding TCI state based on the relevant parameters.
  • Step 2110 After the TRP sends the first signaling to the terminal, before the first moment corresponding to the TRP, the TRP sends the first channel to the terminal based on the first TCI state corresponding to the TRP.
  • the first TCI state may be: the TCI state (or old TCI state) used when the terminal and the TRP send and/or receive the first channel before the TRP sends the first signaling to the terminal.
  • the first channel may be, for example, a PSDCH.
  • the terminal after the TRP sends the first signaling to the terminal and before the first moment corresponding to the TRP, the terminal is in the stage of "activating the TCI state to be activated by the TRP" and will not successfully activate the TCI state to be activated by the TRP. Therefore, channel transmission cannot be performed between the TRP and the terminal based on the TCI state to be activated by the TRP.
  • the TRP needs to send the first channel to the terminal, it can send the first channel based on the above-mentioned first TCI state (i.e., the old TCI state), and similarly, after the terminal receives the first signaling sent by the TRP and before the first moment corresponding to the TRP, the terminal can receive the first channel sent by the TRP based on the first TCI state corresponding to the TRP.
  • the first TCI state i.e., the old TCI state
  • the above “after TRP sends the first signaling to the terminal, before the first moment corresponding to TRP” is the T0-T2 time period in FIG. 2A3.
  • the TCI state required to be activated by TRP1 has not been fully activated.
  • the first channel can be transmitted between TRP1 and the terminal based on the TCI state used by TRP1 before the T0 moment (i.e., the first TCI state corresponding to TRP1).
  • the above “after TRP sends the first signaling to the terminal, before the first moment corresponding to TRP” is the T1-T3 time period in FIG. 2A3.
  • the TCI state required to be activated by TRP2 has not been fully activated. Then, the first channel can be transmitted between TRP2 and the terminal based on the TCI state used by TRP2 before the T1 moment (i.e., the first TCI state corresponding to TRP2).
  • Step 2111 After the first moment corresponding to TRP, TRP sends the first channel to the terminal based on the first TCI state corresponding to TRP, or TRP sends the first channel to the terminal based on the second TCI state corresponding to TRP.
  • the terminal may receive the first channel sent by the TRP based on the first TCI state corresponding to the TRP, or receive the first channel sent by the TRP based on the second TCI state corresponding to the TRP.
  • the second TCI state corresponding to the TRP may be: the TCI state to be activated by the first signaling sent by the TRP.
  • the first moment corresponding to the TRP actually means: the moment when the terminal completes activation of the TCI state corresponding to the TRP (that is, the TCI state to be activated by the first signaling sent by the TRP).
  • the TRP can use its corresponding TCI state (that is, the second TCI state mentioned above) to send the first channel.
  • the TRP can also choose not to use the second TCI state corresponding to the TRP to send the first channel, but can also choose to send the first channel with its corresponding first TCI state.
  • the "after the first moment corresponding to the TRP, specifically based on the first TCI state corresponding to the TRP to send the first channel to the terminal, or based on the second TCI state corresponding to the TRP to send the first channel to the terminal" here is mainly determined by judging whether the resources occupied by the first channel sent by the TRP overlap with the resources occupied by the first channels sent by other TRPs in the MTRP, and whether other TRPs have completed the activation of the corresponding TCI states.
  • the terminal after the first moment corresponding to the TRP, if the terminal has not completed the activation of the TCI states corresponding to other TRPs in the MTRP, and at this time, the TRP and other TRPs both need to send the first channel, and the resources occupied by the first channel scheduled to be sent by the TRP overlap with the resources occupied by the first channels scheduled to be sent by other TRPs, then the TRP shall send the first channel to the terminal based on the first TCI state corresponding to the TRP, and other TRPs shall also send the first channel to the terminal based on the first TCI state corresponding to other TRPs. At this time, the terminal can receive the first channel sent by each TRP based on the first TCI state corresponding to each TRP.
  • TRP1 the above-mentioned “after the first moment corresponding to TRP” is T2 in FIG. 2A3.
  • TCI state 1 the TCI state 1 required to be activated by TRP1 is activated, while the TCI state 2 required to be activated by TRP2 is not activated.
  • TRP1 can send PDSCH 1 to the terminal based on the first TCI state corresponding to TRP1 (i.e., the TCI state used when TRP1 sent PDSCH before the T0 moment), and TRP2 can send PDSCH 2 to the terminal based on the first TCI state corresponding to TRP2 (i.e., the TCI state used when TRP2 sent PDSCH before the T1 moment).
  • the terminal can receive PDSCH 1 sent by TRP1 based on the first TCI state corresponding to TRP1, and receive PDSCH 2 sent by TRP2 based on the first TCI state corresponding to TRP2.
  • the TCI state corresponding to the TRP in the activated MTRP is usually updated multiple times, wherein the TCI state corresponding to all TRPs in the activated MTRP is updated each time.
  • TRP1 can instruct the terminal to activate TCI state a
  • TRP2 can instruct the terminal to activate TCI state b
  • TCI state a is used to transmit PDSCH between the terminal and TRP1
  • TCI state b is used to transmit PDSCH between the terminal and TRP2
  • the TCI state a and TCI state b can be referred to as a pair of TCI state pairs.
  • TRP1 can instruct the terminal to activate TCI state c
  • TRP2 can instruct the terminal to activate TCI state d
  • TCI state c is used to transmit PDSCH between the terminal and TRP1
  • TCI state d is used to transmit PDSCH between the terminal and TRP2
  • the TCI state c and TCI state d can be referred to as a pair of TCI state pairs.
  • the terminal transmits channels with different TRPs based on the TCI state in the TCI state pair at the same time (such as: the terminal transmits PDSCH based on TCI state a and TRP1, and transmits PDSCH based on TCI state b and TRP2; or, the terminal transmits PDSCH based on TCI state c and TRP1, and transmits PDSCH based on TCI state d and TRP2)
  • the channel interference is less
  • the terminal transmits channels with different TRPs based on the TCI state in different TCI state pairs at the same time such as: the terminal transmits PDSCH based on TCI state a and TRP1, and transmits PDSCH based on TCI state d and TRP2; or, the terminal transmits PDSCH based on TCI state c and TRP1, and transmits PDSCH based on TCI state b and TRP2
  • the channel interference is larger.
  • the first TCI state corresponding to different TRPs in the MTRP may belong to the same TRP state pair
  • the second TCI state corresponding to different TRPs in the MTRP i.e., the new TCI state activated this time
  • TRP1 and TRP2 in the MTRP determine whether the TCI state corresponding to TRP1 is activated, but the TCI state corresponding to TRP2 is not activated, that is, in the T2-T3 time period of reference Figure 2A3, if the resources occupied by PDSCH 1 scheduled to be sent by TRP1 overlap with the resources occupied by PDSCH 2 scheduled to be sent by TRP2, it means that PDSCH 1 of TRP1 and PDSCH 2 of TRP2 are to be sent at the same time. At this time, in order to prevent interference between channels, the same TCI state pair needs to be used to synchronize.
  • TRP2 since the TCI state corresponding to TRP2 has not been activated, TRP2 can only use the first TCI state corresponding to TRP2 to send PDSCH 2. Therefore, in order to achieve the purpose of "using the same TCI state pair to simultaneously transmit PDSCH 1 of TRP1 and PDSCH 2 of TRP2", although the second TCI state corresponding to TRP1 has been activated, TRP1 still needs to use the first TCI state corresponding to TRP1 to send PDSCH 1.
  • the TRP and other TRPs need to send the first channel, but the resources occupied by the first channel scheduled to be sent by the TRP do not overlap with the resources occupied by the first channels scheduled to be sent by other TRPs, that is, the first channel scheduled to be sent by the TRP and the first channels scheduled to be sent by other TRPs will not be sent at the same time, then there is no interference problem.
  • the TRP can send the first channel to the terminal based on the first TCI state or the second TCI state corresponding to the TRP, and other TRPs can send the first channel to the terminal based on the first TCI state corresponding to other TRPs.
  • the terminal can use time division multiplexing (TDM) to receive the first channel sent by the TRP based on the first TCI state or the second TCI state corresponding to the TRP.
  • TDM time division multiplexing
  • the terminal can receive the first channel sent by the TRP based on the first TCI state corresponding to the TRP.
  • TRP1 can send PDSCH 1 to the terminal based on the first TCI state corresponding to TRP1 (i.e., the TCI state used when TRP1 sent PDSCH before time T0) or the second TCI state corresponding to TRP1 (i.e., the activated TCI state 1 corresponding to time T2), and TRP2 can send PDSCH 2 to the terminal based on the first TCI state corresponding to TRP2 (i.e
  • the TRP and other TRPs need to send the first channel, but the resources occupied by the first channel scheduled to be sent by the TRP do not overlap with the resources occupied by the first channels scheduled to be sent by other TRPs, then the TRP sends the first channel to the terminal based on the first TCI state or the second TCI state corresponding to the TRP, and other TRPs can send the first channel to the terminal based on their corresponding first TCI states.
  • the TRP can send the first channel to the terminal based on the first TCI state or the second TCI state corresponding to the TRP, and other TRPs can send the first channel to the terminal based on their corresponding first TCI state.
  • the TRP can send the first channel to the terminal based on the first TCI state or the second TCI state corresponding to the TRP, and other TRPs can send the first channel to the terminal based on the first TCI state or the second TCI state corresponding to other TRPs.
  • the resources occupied by the first channels sent by different TRPs overlap, different TRPs should respectively send the first channels based on their corresponding TCI states belonging to the same TCI state pair.
  • different TRPs can respectively send the first channels based on their corresponding first TCI states (such as TRP1 sends the first channel based on the first TCI state corresponding to TRP1, and TRP2 also sends the first channel based on the first TCI state corresponding to TRP2), or, different TRPs can respectively send the first channel based on their corresponding second TCI state (such as TRP1 sends the first channel based on the second TCI state corresponding to TRP1, and TRP2 also sends the first channel based on the second TCI state corresponding to TRP2); when the resources occupied by the first channels sent by different TRPs do not overlap, different TRPs can respectively send the first channels based on their corresponding TCI states belonging to the same TCI state pair or different TCI state pairs.
  • TRP1 sends the first channel based on the first TCI state corresponding to TRP1, and TRP2 also sends the first channel based on the first TCI state corresponding to TRP2; or, TRP1 sends the first channel based on the second TCI state corresponding to TRP1, and TRP2 sends the first channel based on the first TCI state corresponding to TRP2, etc.
  • the communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2111.
  • step S2101 may be implemented as an independent embodiment
  • step S2102 may be implemented as an independent embodiment
  • step S2103 may be implemented as an independent embodiment
  • steps S2101+S2102 may be implemented as independent embodiments, but are not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2B , the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes:
  • Step 2201 In the MDCI transmission scenario of MTRP, at least one TRP configures a TCI state set corresponding to the TRP to the terminal.
  • Step 2202 At least one TRP sends a first signaling to the terminal.
  • Step 2203 TRP determines the first time slot corresponding to the TRP.
  • Step 2204 The terminal determines the first time slot corresponding to at least one TRP.
  • Step 2205 TRP determines the second time corresponding to the TRP based on the first time slot corresponding to the TRP.
  • Step 2206 The terminal determines a second time moment corresponding to at least one TRP based on a first time slot corresponding to at least one TRP.
  • steps 2201 - 2206 please refer to the above embodiment description.
  • Step 2207 There is communication interaction between different TRPs in the MTRP.
  • the TRP obtains the second moments corresponding to other TRPs from other TRPs in the MTRP except the TRP itself.
  • the TRP determines the second moment with the largest value among all the second moments corresponding to the MTRP as the first moment.
  • Step 2208 The terminal determines the second time with the largest value among all the second times corresponding to the MTRP as the first time.
  • the first moment corresponding to each TRP is the same, and the first moment is the moment when all TCI states to be activated by all TRPs of the MTRP are activated. That is, after the terminal receives the first signaling sent by the first TRP, the period before the first moment is the period in which the terminal activates the TCI states required to be activated by all TRPs in the MTRP, and after the first moment, the TCI states required to be activated by all TRPs in the MTRP are activated.
  • the MTRP includes two TRPs, namely TRP1 and TRP2, and it is assumed that the TCI state to be activated by TRP1 is TCI state 1, and the TCI state to be activated by TRP2 is TCI state 2.
  • MAC CE1 may be the first signaling sent by TRP1
  • T activationDelay_TRP1 may be the activation time required when the TCI state corresponding to TRP1 is activated by the terminal
  • MAC CE2 may be the first signaling sent by TRP2
  • T activationDelay_TRP2 may be the activation time required when the TCI state corresponding to TRP2 is activated by the terminal
  • the first time slot corresponding to TRP1 may be located at the T0 moment in FIG2A3
  • the second moment corresponding to TRP1 may be the T2 moment in FIG2A3. After the T2 moment, it means that the TCI state 1 to be activated by TRP1 is successfully activated.
  • TRP1 may perform channel transmission based on the activated TCI state 1, for example, TRP1 may schedule the PDSCH 1 of TRP1 based on the activated TCI state 1.
  • the first time slot corresponding to TRP2 may be located at the time T1 in FIG. 2A3, and the second time corresponding to TRP2 may be the time T3 in FIG. 2A3. After the time T3, it means that the TCI state 2 to be activated by TRP2 is successfully activated.
  • TRP2 may perform channel transmission based on the activated TCI state 2. For example, TRP2 may schedule PDSCH 2 of TRP2 based on the activated TCI state 2.
  • the first time determined above may be the time T3 in FIG. 2A3, and at the time T3, the TCI states corresponding to TRP1 and TRP2 are all activated.
  • Step 2209 The terminal activates the TCI states required by different TRPs.
  • step 2209 For a detailed description of step 2209, please refer to the above embodiment description.
  • Step 2210 After TRP sends the first signaling to the terminal, before the first moment corresponding to TRP, a first channel is sent to the terminal based on the first TCI state corresponding to TRP, or a first channel is sent to the terminal based on the second TCI state corresponding to TRP.
  • the first moment is: the moment when all TCI states to be activated by all TRPs of the MTRP have completed activation. It can be seen from this that after the TRP sends the first signaling to the terminal, before the first moment corresponding to the TRP, it is possible that the TCI states corresponding to any TRP in the MTRP have not completed activation, or it is also possible that the TCI states corresponding to some TRPs in the MTRP have completed activation, while the activation of other TRPs has not been completed.
  • each TRP can send a first channel based on the first TCI state corresponding to the TRP, and at this time, the terminal can receive the first channel sent by the TRP based on the first TCI state corresponding to each TRP.
  • each TRP can send a first channel based on the first TCI state corresponding to the TRP, and at this time, the terminal can receive the first channel sent by the TRP based on the first TCI state corresponding to each TRP.
  • the TRP whose TCI state has completed activation can send the first channel based on the first TCI state or the second TCI state corresponding to the TRP, and the TRP whose TCI state has not completed activation can send the first channel based on the first TCI state corresponding to the TRP.
  • the TRP whose TCI state has completed activation can receive the first channel based on the first TCI state or the second TCI state corresponding to the TRP, and the TRP whose TCI state has not completed activation can receive the first channel based on the first TCI state corresponding to the TRP.
  • TRP1 can send PDSCH 1 to the terminal based on the first TCI state corresponding to TRP1
  • TRP2 can send PDSCH 2 to the terminal based on the first TCI state corresponding to TRP2.
  • TRP1 can send PDSCH 1 to the terminal based on the first TCI state corresponding to TRP1 or the second TCI state corresponding to TRP1 (i.e., the activated TCI state 1 corresponding to time T2) and TRP2 can send PDSCH 2 to the terminal based on the first TCI state corresponding to TRP2.
  • Step 2211 After the first moment corresponding to TRP, send the first channel to the terminal based on the second TCI state corresponding to TRP.
  • each TRP can send the first channel to the terminal based on the corresponding second TCI state.
  • the terminal can receive the first channel sent by the TRP based on the second TCI state corresponding to the TRP.
  • TRP may also choose to use the above-mentioned first TCI state (ie, the old TCI state) to send the first channel.
  • the communication method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2211.
  • step S2201 may be implemented as an independent embodiment
  • step S2202 may be implemented as an independent embodiment
  • step S2203 may be implemented as an independent embodiment
  • steps S2201+S2202 may be implemented as an independent embodiment, but are not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG3A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to a communication method for TRP, the method comprising:
  • Step 3101 In the MDCI transmission scenario of MTRP, TRP configures the TCI state set corresponding to TRP to the terminal.
  • Step 3102 TRP sends a first signaling to the terminal.
  • Step 3103 TRP determines the first time slot corresponding to the TRP.
  • Step 3104 TRP determines the second time corresponding to the TRP based on the first time slot corresponding to the TRP.
  • Step 3105 TRP determines the second moment corresponding to the TRP as the first moment corresponding to the TRP.
  • Step 3106 After the TRP sends the first signaling to the terminal, before the first moment corresponding to the TRP, the TRP sends the first channel to the terminal based on the first TCI state corresponding to the TRP.
  • Step 3107 After the first moment corresponding to TRP, TRP sends the first channel to the terminal based on the first TCI state corresponding to TRP, or TRP sends the first channel to the terminal based on the second TCI state corresponding to TRP.
  • steps 3101 - 3107 please refer to the above embodiment description.
  • the communication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3107.
  • step S3101 may be implemented as an independent embodiment
  • step S3102 may be implemented as an independent embodiment
  • step S3101+S3102 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG3B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the present disclosure embodiment relates to a communication method for TRP, the method comprising:
  • Step 3201 In the MDCI transmission scenario of MTRP, TRP configures the TCI state set corresponding to TRP to the terminal.
  • Step 3202 TRP sends a first signaling to the terminal.
  • Step 3203 TRP determines the first time slot corresponding to the TRP.
  • Step 3204 TRP determines the second time corresponding to the TRP based on the first time slot corresponding to the TRP.
  • Step 3205 There is communication interaction between different TRPs in the MTRP.
  • the TRP obtains the second moments corresponding to other TRPs from other TRPs in the MTRP except the TRP itself.
  • the TRP determines the second moment with the largest value among all the second moments corresponding to the MTRP as the first moment.
  • Step 3206 After TRP sends the first signaling to the terminal, before the first moment corresponding to TRP, send the first channel to the terminal based on the first TCI state corresponding to TRP, or send the first channel to the terminal based on the second TCI state corresponding to TRP.
  • steps 3201 - 3207 please refer to the above embodiment description.
  • the communication method involved in the embodiment of the present disclosure may include at least one of steps S3201 to S3207.
  • step S3201 may be implemented as an independent embodiment
  • step S3202 may be implemented as an independent embodiment
  • step S3201+S3202 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • Step 3301 In a multi-downlink control information MDCI transmission scenario with multiple transmitting and receiving points MTRP, when TRP sends a first signaling to a terminal, the TRP determines a first moment.
  • Step 3202 TRP sends a first channel to the terminal based on the first moment.
  • the first signaling is used for the TRP to instruct the terminal to activate a transmission configuration indication TCI state state, and the first time is used to indicate: an activation completion time of a TCI state to be activated by at least one TRP in the MTRP;
  • the first signaling is used by the TRP to instruct the terminal to activate a TCI state in the TCI state set corresponding to the TRP; wherein different TRPs correspond to TCI state sets respectively, and the TCI state set includes at least one TCI state;
  • the method further comprises:
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment corresponding to the TRP is determined as the first moment corresponding to the TRP, wherein the first moments corresponding to different TRPs are the same or different.
  • the sending the first channel to the terminal based on the first time includes at least one of the following:
  • a first channel is sent to the terminal based on a first TCI state corresponding to the TRP; wherein the first TCI state is: before the TRP sends the first signaling to the terminal, the TCI state used when the first channel is sent and/or received between the TRP and the terminal;
  • a first channel is sent to the terminal based on the first TCI state corresponding to the TRP, or a first channel is sent to the terminal based on the second TCI state corresponding to the TRP; wherein the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP.
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment with the largest value among all the second moments corresponding to the MTRP is determined as the first moment, wherein the first moments corresponding to different TRPs are the same.
  • the sending the first channel to the terminal based on the first time includes at least one of the following:
  • a first channel is sent to the terminal based on a first TCI state corresponding to the TRP, or a first channel is sent to the terminal based on a second TCI state corresponding to the TRP;
  • the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal;
  • the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP;
  • a first channel is sent to the terminal based on a second TCI state corresponding to the TRP.
  • steps 3301 - 3302 please refer to the above embodiment description.
  • the communication method involved in the embodiment of the present disclosure may include at least one of step S3301 to step S3302.
  • step S3301 may be implemented as an independent embodiment
  • step S3302 may be implemented as an independent embodiment
  • step S3301+S3302 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, combined arbitrarily or exchanged in order, unless there is any contradiction.
  • the optional examples may be combined arbitrarily and may be combined arbitrarily with any steps of other implementation modes or other embodiments.
  • FIG4A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the present disclosure embodiment relates to a communication method for a terminal, and the method includes:
  • Step 4101 In the MDCI transmission scenario of MTRP, the terminal receives the TCI state set corresponding to the TRP configured by TRP.
  • Step 4102 The terminal receives the first signaling sent by TRP.
  • Step 4103 The terminal determines the first time slot corresponding to at least one TRP.
  • Step 4104 The terminal determines a second time moment corresponding to at least one TRP based on a first time slot corresponding to at least one TRP.
  • Step 4105 The terminal determines the second moments corresponding to different TRPs as the first moments corresponding to different TRPs respectively.
  • Step 4106 The terminal activates the TCI states required by different TRPs.
  • Step 4107 After the terminal receives the first signaling sent by the TRP and before the first moment corresponding to the TRP, the terminal receives the first channel based on the first TCI state corresponding to the TRP.
  • Step 4108 After the first moment corresponding to the TRP, the terminal receives the first channel based on the first TCI state corresponding to the TRP, or the terminal receives the first channel based on the second TCI state corresponding to the TRP.
  • steps 4101-4108 please refer to the contents of the above embodiment.
  • step S4101 may be implemented as an independent embodiment
  • step S4102 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG4B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the present disclosure embodiment relates to a communication method for a terminal, and the method includes:
  • Step 4201 In the MDCI transmission scenario of MTRP, the terminal receives the TCI state set corresponding to the TRP configured by TRP.
  • Step 4202 The terminal receives the first signaling sent by TRP.
  • Step 4203 The terminal determines the first time slot corresponding to at least one TRP.
  • Step 4204 The terminal determines a second time moment corresponding to at least one TRP based on a first time slot corresponding to at least one TRP.
  • Step 4205 The terminal determines the second time with the largest value among all the second times corresponding to the MTRP as the first time.
  • Step 4206 The terminal activates the TCI states required by different TRPs.
  • Step 4207 After the terminal receives the first signaling sent by the TRP and before the first moment corresponding to the TRP, the terminal receives the first channel based on the first TCI state corresponding to the TRP, or the terminal receives the first channel based on the second TCI state corresponding to the TRP.
  • Step 4208 After the first moment corresponding to TRP, the terminal receives the first channel based on the second TCI state corresponding to TRP.
  • steps 4201-4208 please refer to the contents of the above embodiment.
  • the communication method involved in the embodiment of the present disclosure may include at least one of step S4201 to step S4208.
  • step S4201 may be implemented as an independent embodiment
  • step S4202 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG4C is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4C , the present disclosure embodiment relates to a communication method for TRP, the method comprising:
  • Step 4301 In a multi-downlink control information MDCI transmission scenario with multiple transmitting and receiving points MTRP, when a terminal receives a first signaling sent by at least one TRP, the terminal determines a first moment.
  • Step 4202 The terminal sends a first channel to the terminal based on the first moment.
  • the first signaling is used by the TRP to instruct the terminal to activate a TCI state in a TCI state set corresponding to the TRP; wherein different TRPs correspond to TCI state sets respectively, and the TCI state set includes at least one TCI state;
  • the method further comprises:
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment corresponding to the TRP is determined as the first moment corresponding to the TRP, wherein the first moments corresponding to different TRPs are the same or different.
  • the first channel for receiving the TRP based on the first moment includes at least one of the following:
  • the first channel sent by the TRP is received based on the first TCI state corresponding to the TRP; wherein the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal;
  • the first channel sent by the TRP is received based on the first TCI state corresponding to the TRP, or the first channel sent by the TRP is received based on the second TCI state corresponding to the TRP; wherein the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP.
  • determining the first moment includes:
  • the first time slot is: the first time slot when the terminal receives the first signaling sent by the TRP, and the first time slots corresponding to different TRPs are the same or different;
  • the second moment with the largest value among all the second moments corresponding to the MTRP is determined as the first moment, wherein the first moments corresponding to different TRPs are the same.
  • the first channel for receiving the TRP based on the first moment includes at least one of the following:
  • the terminal After the terminal receives the first signaling sent by the TRP and before the first moment, the terminal receives the first channel sent by the TRP based on the first TCI state corresponding to the TRP, or receives the first channel sent by the TRP based on the second TCI state corresponding to the TRP; wherein the first TCI state is: the TCI state used when the first channel is sent and/or received between the TRP and the terminal before the TRP sends the first signaling to the terminal; the second TCI state is: the TCI state to be activated by the first signaling sent by the TRP;
  • the first channel sent by the TRP is received based on the second TCI state corresponding to the TRP.
  • steps 4301-4302 please refer to the above embodiment description.
  • the communication method involved in the embodiment of the present disclosure may include at least one of step S3301 to step S3302.
  • step S3301 may be implemented as an independent embodiment
  • step S3302 may be implemented as an independent embodiment
  • step S3301+S3302 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG5A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication method for a communication system, the communication system including a TRP and a terminal, and the method includes at least one of the following:
  • Step 5101 In the MDCI transmission scenario of MTRP, when the TRP sends a first signaling to the terminal, the TRP determines a first time;
  • Step 5102 The TRP sends a first channel to the terminal based on the first time
  • Step 5103 In the MDCI transmission scenario of MTRP, when the terminal receives a first signaling sent by at least one TRP, the terminal determines a first time;
  • Step 5104 The terminal receives the first channel sent by the TRP based on the first moment.
  • steps 5101 to 5104 can be found in the introduction to the above embodiments.
  • the above method may include the method described in the above embodiments of the communication system side, TRP side, terminal side, etc., which will not be repeated here.
  • step S5101 may be implemented as an independent embodiment
  • step S5102 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, combined arbitrarily or exchanged in order, unless there is any contradiction.
  • the optional examples may be combined arbitrarily and may be combined arbitrarily with any steps of other implementation modes or other embodiments.
  • MAC CE based TCI state list requirement is defined for a single TRP for the following known cases.
  • THARQ Tfirst-SSB, TSSB-proc and TOk are defined in clause 8.10.3.
  • the base station (NW) will configure the TCI state list for the PDSCH of a TRP through RRC. Then MAC CE can activate one or more TCI states in the list.
  • the TCI state list activation command based on MAC CE is defined in 38.321.
  • the structure diagram of MAC CE can refer to the above-mentioned Figure 2A3.
  • the DCI will then indicate to the UE the actual TCI state used. If the MAC CE activates only one TCI state in the list, this TCI state will be used directly by the PDSCH without further DCI indication.
  • each TRP will send a TCI state list update command.
  • two PDSCHs will be received from two TRPs simultaneously.
  • the TCI state activation delay requirement for the two PDSCHs needs to be considered. If the UE can receive PDSCHs from two Trps simultaneously, it is required that both TCI state activations have been completed. If one TCI state activation has not been completed, the UE cannot be scheduled with two PDSCHs.
  • one MAC CE can activate two TCI states.
  • Two TRPs will activate two MAC CEs in parallel, and the total delay will depend on the longest delay between the two TCI activations.
  • the problem is more complicated.
  • Two MAC CEs will be triggered for two independent TCI state activations. They may not arrive at the same time.
  • the TCI activation endpoint i.e., the activation completion moment
  • the TCI activation endpoint of TRP1 is T2.
  • the TCI activation endpoint of Trp 2 is T3.
  • the UE can only receive two PDSCHs. For example, starting from T3, the UE can be scheduled with two PDSCHs with a new TCI state pair. The maximum delay between the two activation times will be selected as the total delay.
  • TRP1 does not know when the TCI state activation of TRP2 ends. Therefore, the requirements and corresponding UE procedures will be defined according to different mTRP scenarios.
  • Scenario 2 Two Trps can be co-scheduled to schedule PDSCH.
  • FIG. 5B is a schematic diagram of a structure corresponding to scenario 1 according to an embodiment of the present disclosure. In this case, only a delay requirement can be defined for each TRP separately. The delay requirement for each TRP is:
  • the UE can receive two PDSCHs according to the new TCI state pair.
  • T2-T3 if two TRPs schedule two PDSCHs during T2-T3, the UE cannot receive the two PDSCHs through the new TCI pair because TRP2 has not completed TCI activation.
  • the UE behavior during T2-T3 will be defined.
  • Option 1 If the PDSCHs of two Trps are overlapped scheduled, the UE can receive two PDSCHs with the old TCI state pair (TCI0 and TCI1).
  • the UE can still apply the old TCI state pair or the new TCI state pair.
  • Option 2 If the PDSCHs of the two TRPs are scheduled non-overlappingly, the UE can receive PDSCHs from TRP1 and TRP2 in a TDM manner. The UE will receive PDSCHs from TRP1 with the new TCI state 2 and from TRP2 with the old TCI state 1.
  • scenario 2 two Trps can jointly schedule PDSCH
  • Figure 5C is a structural diagram corresponding to scenario 2 shown according to an embodiment of the present disclosure.
  • Trp the total delay for the UE to receive two PDSCHs will be the maximum delay between two TCI activations:
  • Tdelay_TRP1 The TCI activation delay for TRP1 (Tdelay_TRP1) is:
  • Tdelay_TRP2 The TCI activation delay for TRP2 (Tdelay_TRP2) is:
  • n1 and n2 are the first time slots for TRP1 and TRP2 to receive MAC CE respectively.
  • the total delay will be:
  • the UE can receive two PDSCHs according to the new TCI state pair.
  • T2-T3 if two TRPs schedule two PDSCHs during T2-T3, the UE cannot receive the two PDSCHs through the new TCI pair because TRP2 has not completed TCI activation.
  • the UE behavior during T2-T3 will also be defined.
  • Option 1 If the PDSCHs of two Trps are overlapped and scheduled, the UE can receive two PDSCHs with the old TCI state pair (TCI0 and TCI1)
  • Option 2 If the PDSCHs of the two TRPs are scheduled non-overlappingly, the UE can receive PDSCHs from TRP1 and TRP2 in a TDM manner. The UE will receive PDSCHs from TRP1 with the new TCI state 2 and from TRP2 with the old TCI state 1.
  • the embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods.
  • a device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device such as an access network device, a core network function node, a core network device, etc.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, instructions are stored in the memory, and the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it may also be a hardware circuit designed for artificial intelligence, which may be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DLPU), or a computer programmable logic device (CLP). Learning Processing Unit (DPU), etc.
  • NPU neural network processing unit
  • TPU tensor processing unit
  • DLPU deep learning processing unit
  • CLP computer programmable logic device
  • DPU learning Processing Unit
  • FIG6A is a schematic diagram of the structure of the TRP proposed in the embodiment of the present disclosure. As shown in FIG6A , it includes:
  • a processing module used in an MDCI transmission scenario of an MTRP, when sending a first signaling to a terminal, the TRP determines a first moment; wherein the first signaling is used for the TRP to activate a transmission configuration indicating a TCI state state, and the first moment is used to indicate: the activation completion moment of the TCI state to be activated by at least one TRP in the MTRP;
  • a sending module is used for the TRP to send a first channel to the terminal based on the first moment.
  • the processing module is used to execute the steps related to "processing" executed by the TRP in any of the above methods
  • the sending module is used to execute the steps related to "sending” executed by the TRP in any of the above methods.
  • the TRP may also include a receiving module, and the receiving module is used to execute the steps related to receiving executed by the TRP in any of the above methods, which will not be repeated here.
  • FIG6B is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6B , it includes:
  • a processing module used in an MDCI transmission scenario of MTRP, when receiving a first signaling sent by at least one TRP, determines a first time; wherein the first signaling is used for the TRP to activate the transmission configuration indication TCI state state, and the first time is used to indicate: the activation completion time of the TCI state to be activated by at least one TRP in the MTRP;
  • a receiving module is used to receive the first channel sent by the TRP based on the first moment.
  • the processing module is used to execute the steps related to "processing" executed by the terminal in any of the above methods
  • the receiving module is used to execute the steps related to receiving executed by the terminal in any of the above methods.
  • the terminal may also include a sending module, wherein the sending module is used to execute the steps related to "sending" executed by the terminal in any of the above methods.
  • FIG7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure.
  • the communication device 7100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods.
  • the communication device 7100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 7100 includes one or more processors 7101.
  • the processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the processor 7101 is used to call instructions so that the communication device 7100 executes any of the above methods.
  • the communication device 7100 further includes one or more memories 7102 for storing instructions.
  • the memory 7102 may also be outside the communication device 7100.
  • the communication device 7100 further includes one or more transceivers 7103.
  • the communication steps such as sending and receiving in the above method are executed by the transceiver 7103, and the other steps are executed by the processor 7101.
  • the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102.
  • the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices.
  • the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.
  • the communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • FIG. 7B is a schematic diagram of the structure of a chip 7200 provided in an embodiment of the present disclosure.
  • the communication device 7100 may be a chip or a chip system
  • the chip 7200 includes one or more processors 7201, and the processor 7201 is used to call instructions to enable the chip 7200 to execute any of the above Law.
  • the chip 7200 further includes one or more interface circuits 7202, which are connected to the memory 7203.
  • the interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to the memory 7203 or other devices.
  • the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.
  • the terms such as interface circuit, interface, transceiver pin, and transceiver can be replaced with each other.
  • the chip 7200 further includes one or more memories 7203 for storing instructions.
  • the memory 7203 may be outside the chip 7200.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • the present disclosure also proposes a program product, which, when executed by the communication device 7100, enables the communication device 7100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk

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

Abstract

La présente divulgation propose un procédé, un appareil et un dispositif de communication, et un support de stockage. Le procédé comprend les étapes suivantes : dans un scénario de transmission d'informations de commande de liaison descendante multiple (MDCI) de multiples points de réception de transmission (MTRP), lorsqu'un TRP transmet une première signalisation à un terminal, le TRP détermine un premier moment, la première signalisation étant utilisée par le TRP pour ordonner au terminal d'activer un état d'indicateur de configuration de transmission (TCI), et le premier moment étant utilisé pour indiquer un moment d'achèvement d'activation d'un état de TCI à activer par au moins un TRP parmi les MTRP ; et le TRP transmet un premier canal au terminal sur la base du premier moment. La présente divulgation concerne un procédé destiné à déterminer un moment d'achèvement d'activation d'un état de TCI à activer par au moins un TRP parmi des TRP, ce qui permet d'assurer une activation réussie et une utilisation réussie de l'état de TCI dans le scénario de transmission MDCI des MTRP, et d'assurer la stabilité de communication.
PCT/CN2023/120516 2023-09-21 2023-09-21 Procédé, appareil, dispositif et système de communication, ainsi que support de stockage Pending WO2025060013A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2023/120516 WO2025060013A1 (fr) 2023-09-21 2023-09-21 Procédé, appareil, dispositif et système de communication, ainsi que support de stockage
CN202380011238.1A CN117546438A (zh) 2023-09-21 2023-09-21 通信方法及装置、通信设备、通信系统、存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/120516 WO2025060013A1 (fr) 2023-09-21 2023-09-21 Procédé, appareil, dispositif et système de communication, ainsi que support de stockage

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WO2025060013A1 true WO2025060013A1 (fr) 2025-03-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115701177A (zh) * 2021-07-23 2023-02-07 北京紫光展锐通信技术有限公司 一种传输配置指示tci状态激活方法及相关设备
WO2023013003A1 (fr) * 2021-08-05 2023-02-09 株式会社Ｎｔｔドコモ Terminal, procédé de communication sans fil et station de base
CN116250328A (zh) * 2020-12-21 2023-06-09 Oppo广东移动通信有限公司 状态切换的方法、终端设备和网络设备
WO2023124995A1 (fr) * 2021-12-29 2023-07-06 华为技术有限公司 Procédé de communication, dispositif terminal, dispositif de réseau et système de communication
CN116489787A (zh) * 2022-01-14 2023-07-25 大唐移动通信设备有限公司 信息配置方法、装置、终端设备及网络设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116250328A (zh) * 2020-12-21 2023-06-09 Oppo广东移动通信有限公司 状态切换的方法、终端设备和网络设备
CN115701177A (zh) * 2021-07-23 2023-02-07 北京紫光展锐通信技术有限公司 一种传输配置指示tci状态激活方法及相关设备
WO2023013003A1 (fr) * 2021-08-05 2023-02-09 株式会社Ｎｔｔドコモ Terminal, procédé de communication sans fil et station de base
WO2023124995A1 (fr) * 2021-12-29 2023-07-06 华为技术有限公司 Procédé de communication, dispositif terminal, dispositif de réseau et système de communication
CN116489787A (zh) * 2022-01-14 2023-07-25 大唐移动通信设备有限公司 信息配置方法、装置、终端设备及网络设备

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