A transmission method and device

Abstract

The present application proposes a transmission method and device, which relate to the field of wireless communication technology. The scheme is: receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target transmission configuration indication TCI states used by the UE to receive the control signaling carried on the physical downlink control channel PDCCH; receiving the control signaling according to the indication information. In the present application, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that it can use a single TCI state or multiple TCI states that match the TRP working mode used by the network device to receive the corresponding control signaling, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

Description

Technical Field

[0001] The present application relates to the field of mobile communications, and in particular to a transmission method and device. Background Art

[0002] As the frequency band of electromagnetic waves used in mobile communications continues to increase, beam-based transmission and reception are required to ensure network coverage. In related technologies, the working modes of the transmission reception point (TRP) include single TRP transmission mode and multi-TRP transmission mode. Network equipment and user equipment (UE) currently perform mobile communications in accordance with the agreed single TRP working mode, resulting in poor flexibility in the transmission mode between UE and network equipment. Summary of the invention

[0003] The transmission method, apparatus, communication equipment and storage medium proposed in the present application are used to solve the problem of poor flexibility of the transmission method between UE and network equipment in the related art.

[0004] The first aspect embodiment of the present application proposes a transmission method, which is applied to a user equipment UE, and the method includes: receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target transmission configuration indication TCI states used by the UE to receive control signaling carried on a physical downlink control channel PDCCH; receiving the control signaling according to the indication information.

[0005] The second aspect embodiment of the present application proposes another transmission method, which is applied to a network device, and the method includes: determining a working mode adopted for sending control signaling carried on a PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states; sending indication information to a UE, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH; and sending the control signaling to the UE on the PDCCH.

[0006] The third aspect embodiment of the present application proposes a transmission device, including: a first receiving module, configured to receive indication information sent by a network device, wherein the indication information is used to indicate one or more target transmission configuration indication TCI states used by the UE to receive control signaling carried on a physical downlink control channel PDCCH; a second receiving module, configured to receive the control signaling according to the indication information.

[0007] The fourth aspect embodiment of the present application proposes another transmission device, including: a determination module, configured to determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states; a first sending module, configured to send indication information to the UE, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH; and a second sending module, configured to send the control signaling to the UE on the PDCCH.

[0008] The fifth aspect embodiment of the present application provides a communication device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the transmission method described in the first aspect embodiment of the present application, or the transmission method described in the second aspect embodiment of the present application.

[0009] The sixth aspect embodiment of the present application provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and after the computer executable instructions are executed by the processor, the transmission method described in the first aspect embodiment of the present application, or the transmission method described in the second aspect embodiment of the present application can be implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0011] Figure 1 A schematic diagram of a transmission method provided in an embodiment of the present application;

[0012] Figure 2 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0013] Figure 3 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0014] Figure 4 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0015] Figure 5 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0016] Figure 6 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0017] Figure 7A schematic diagram of another transmission method provided in an embodiment of the present application;

[0018] Figure 8 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0019] Fig. 9 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0020] Fig.10 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0021] Fig.11 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0022] Fig.12 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0023] Fig.13 A schematic diagram of another transmission method provided in an embodiment of the present application;

[0024] Fig.14 A schematic diagram of a transmission device provided in an embodiment of the present application;

[0025] Fig.15 A schematic diagram of another transmission device provided in an embodiment of the present application;

[0026] Fig.16 A schematic diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0028] In the related art, the network device performs mobile communication with the UE according to a single TRP working mode (single TRP transmission mode or multi-TRP transmission mode), and cannot flexibly switch between the two, resulting in poor transmission flexibility between the network device and the UE.

[0029] To address this problem, the embodiments of the present application provide the following transmission method and device.

[0030] Figure 1A flowchart of a data transmission method provided in an embodiment of the present application is executed by a UE to flexibly implement multi-TRP-based transmission or single-TRP-based transmission with a network device on a physical downlink control channel (PDCCH). Figure 1 As shown, the transmission method includes the following steps:

[0031] S101, receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target TCI states used by a UE to receive control signaling carried on a PDCCH.

[0032] The network device is deployed in the wireless access network to provide wireless access functions for user equipment. The network device may be a base station (BS). The network device can communicate wirelessly with the user equipment via one or more antennas. The network device can provide communication coverage for its geographical area. The base station may include different types such as macro base stations, micro base stations, relay stations, access points, etc. In some embodiments, the base station may be referred to as a base station transceiver, a wireless base station, an access point, a wireless transceiver, a basic service set (BSS), an extended service set (ESS), a node B (NodeB), an evolved node B (eNB or eNodeB) or some other appropriate terms by those skilled in the art. Exemplarily, in a 5G system, a base station is referred to as a gNB. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for user equipment are collectively referred to as network devices.

[0033] UE can be scattered throughout the mobile communication system, and each UE can be stationary or mobile. UE can also be referred to as a mobile station, user station, mobile unit, user unit, wireless unit, remote unit, mobile device, terminal device, wireless device, wireless communication device, remote device, mobile user station, access user equipment, mobile user equipment, wireless user equipment, remote user equipment, handheld device, user agent, mobile client, client or some other appropriate terminology by those skilled in the art. UE can be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a wireless local loop (WLL) station, etc., and can communicate with network devices in a mobile communication system.

[0034] In some embodiments of the present application, the indication information may be configuration information or other information transmitted on a physical broadcast channel (PBCH) and / or PDCCH and / or a physical downlink shared channel (PDSCH). For example, the indication information may be configuration information of a control resource set (CORESET) and / or a search space set (SS set), and the state identifier of the target transmission configuration indication (TCI) state is determined according to the configuration information of the CORESET and / or SS set. In some embodiments, the indication information may be configuration signaling, control signaling or other signaling transmitted on PBCH and / or PDCCH and / or PDSCH, or a signaling composed of multiple signalings sent to the UE. The specific form of the indication information is not limited in this embodiment.

[0035] The indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the physical downlink channel, that is, the indication information can indicate whether the UE uses one target TCI state or multiple target TCI states when receiving the control signaling. In some embodiments of the present application, the control signaling carried on the PDCCH can be downlink control information (DCI, Downlink Control Information) signaling, or other signaling. The specific form of the control signaling carried on the PDCCH is not limited in this embodiment.

[0036] The indication information is determined by the network device according to the adopted working mode, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states. In this embodiment, transmission in a single TCI state means transmission between the network device and the UE based on a single TRP, and transmission in multiple TCI states means transmission between the network device and the UE based on multiple TRPs.

[0037] When the working mode adopted by the network device is based on single TRP transmission, the indication information is used to indicate a target TCI state used by the UE to receive the control signaling carried on the PDCCH. When the working mode adopted by the network device is based on multiple TRP transmission, the indication information is used to indicate multiple target TCI states used by the UE to receive the control signaling carried on the PDCCH.

[0038] It should be noted that when referring to transmission based on multiple TRPs, two TRPs are usually used as an example. This is because the relevant technologies for transmission collaboration based on multiple TRPs are currently limited to a maximum of two TRPs. This embodiment can be applied to transmission based on more TRPs and is not limited to this.

[0039] S102: Receive control signaling according to the indication information.

[0040] In some embodiments of the present application, after the UE obtains the indication information, it can determine whether the network device adopts a single TRP-based transmission or a multi-TRP-based transmission based on one or more target TCI states indicated by the indication information. In the case where the network device is based on multi-TRP transmission, the UE uses multiple target TCI states indicated by the indication information to receive control signaling. In the case where the network device is based on single TRP transmission, one target TCI state indicated by the indication information is used to receive control signaling. The UE can flexibly use one or more target TCI states to receive control signaling according to the working mode adopted by the network device.

[0041] In this embodiment, indication information sent by a network device is received, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive control signaling carried on the PDCCH, and based on the indication information, the control signaling carried on the PDCCH is received. In this embodiment, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that a single TCI state or multiple TCI states matching the TRP working mode used by the network device can be used to receive the corresponding control signaling, that is, according to the working mode adopted by the network device, one or more TCI states are used to receive the control signaling, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

[0042] This embodiment provides another transmission method. Figure 2 A flow chart of another transmission method provided for an embodiment of the present application, which is executed by a UE. Using the method provided by this implementation, the UE can receive indication information sent by a network device, determine the state identifier of the target TCI state to be used based on the indication information, determine the corresponding reference signal based on the state identifier of the target TCI state, determine the corresponding beam based on the reference signal, and receive the control signaling carried on the PDCCH through the corresponding beam.

[0043] S201, receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target TCI states used by a UE to receive control signaling carried on a PDCCH.

[0044] In the embodiments of the present application, step S201 can be implemented in any of the ways in the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0045] S202: Determine the state identifier of the target TCI state according to the indication information.

[0046] The indication information may be configuration information of CORESET and / or SS set, and the state identifier of the target TCI state may be determined according to the configuration information of CORESET and / or SS set.

[0047] As a possible implementation manner, the indication information may be the first configuration information of the CORESET, in which the CORESET is configured with a state identifier of one or more TCI states. After the UE obtains the first configuration information, it may obtain the state identifier of one or more TCI states corresponding to the CORESET from the first configuration information of the CORESET, and determine the state identifier of the one or more TCI states corresponding to the CORESET as the state identifier of the target TCI state.

[0048] As another possible implementation, the indication information may be the second configuration information of the SS set, and the second configuration information is used to indicate one or more CORESETs associated with the SS set. Each CORESET corresponds to a state identifier of a TCI state. The state identifier of the TCI state corresponding to the CORESET may be carried in the configuration information of the CORESET to notify the UE. Optionally, the configuration information of the CORESET may be sent by the network device to the UE before or after the second configuration information. Optionally, the configuration information of the CORESET may be sent by the network device to the UE synchronously with the second configuration information.

[0049] After the UE obtains the second configuration information, it first obtains one or more CORESETs associated with the SS set, and then based on the configuration information of one or more CORESETs, obtains the state identifier of the TCI state corresponding to each CORESET, and determines the state identifier of the TCI state corresponding to one or more CORESETs associated with the SS set as the state identifier of the target TCI state.

[0050] As another possible implementation, the indication information may be third configuration information for activating a link relationship between association pairs within an association pair group. An SS set and a CORESET associated with the SS set form an association pair, and two or more association pairs form an association pair group. A link relationship may exist between association pairs within an association pair group, and the link relationship is activated through the third configuration information.

[0051] After obtaining the third configuration information, the UE can obtain the association pair group with the link relationship activated. In this embodiment, the association pair group with the link relationship activated is referred to as the target association pair group. The UE can obtain the CORESET associated with the SS set included in each association pair in the target association pair group, and then obtain the state identifier of the TCI state corresponding to the associated CORESET based on the configuration information of the CORESET associated with the SS set, and determine the state identifier of the TCI state corresponding to the CORESET associated with the SS set included in the association pair as the state identifier of the target TCI state. Optionally, the configuration information of the CORESET associated with the SSset included in the association pair can be sent to the UE by the network device before or after the third configuration information. Optionally, the configuration information of the CORESET included in the association pair can be sent to the UE by the network device synchronously with the third configuration information.

[0052] For example, SS set 1, SS set 2, SS set 3, SS set 4, CORESET 1, CORESET 2, CORESET 3 and CORESET 4, in this embodiment, SS set 1 and CORESET 1 associated with SS set 1 form an association pair 1, SS set 2 and CORESET 2 associated with SS set 2 form an association pair 2, SS set 3 and CORESET 3 associated with SS set 3 form an association pair 3, and SS set 4 and CORESET 4 associated with SS set 4 form an association pair 4. Association pairs 1 to 4 may have a link relationship with each other, and the link relationship can be activated by the third configuration information. For example, association pair 1 and association pair 2 are an association pair group 1, and association pair 3 and association pair 4 are an association pair group 2. If the third configuration information is used to indicate the activation of the association pair group 1, then the association pair group 1 is the target association pair group, and the link relationship between the association pair 1 and the association pair 2 in the association pair group 1 is activated. Correspondingly, the UE determines the state identifiers of the TCI states corresponding to CORESET 1 in association pair 1 and CORESET 2 in association pair 2, respectively, as the state identifier of the target TCI state.

[0053] S203, determine the reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signal.

[0054] The network device configures the correspondence between the state identifier (TCI State ID) of the TCI state and the reference signal (RS) for the UE through the radio resource control (RRC) signaling. After the UE obtains the state identifier of the target TCI state, it queries the correspondence between the state identifier of the above TCI state and the RS according to the state identifier of the target TCI state, and can obtain the reference signal corresponding to the state identifier of the target TCI state. Correspondingly, the UE uses the beam corresponding to the reference signal to receive the control signaling carried on the PDCCH. Optionally, the correspondence between the state identifier of the TCI state and the RS can be in the form of a TCI table or other forms, and the correspondence is described by taking the form of a TCI table as an example. The TCI table may include information such as the state identifier of the TCI state and the reference signal.

[0055] In this embodiment, indication information sent by a network device is received, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive control signaling carried on the PDCCH, and based on the indication information, a state identifier of the target TCI state is determined, a reference signal corresponding to the state identifier of the target TCI state is determined, and a beam corresponding to the reference signal is used to receive the control signaling carried on the PDCCH. In this embodiment, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that a single TCI state or multiple TCI states matching the TRP working mode used by the network device can be used to receive the corresponding control signaling, that is, according to the working mode adopted by the network device, one or more TCI states are used to receive the control signaling, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

[0056] This embodiment provides another transmission method. Figure 3 A flow chart of another transmission method provided in an embodiment of the present application is performed by a UE. In the method provided in this implementation, the UE can receive first configuration information of a CORESET sent by a network device, and the first configuration information is used as indication information to determine the use of one or more target TCI states to receive control signaling carried on a PDCCH through the first configuration information.

[0057] S301, receiving first configuration information of a control resource set sent by a network device, where the first configuration information is indication information.

[0058] The first configuration information is used to indicate the state identifier of one or more TCI states corresponding to the CORESET. In this embodiment, the first configuration information can be transmitted through at least one of RRC signaling, a medium access control layer control element (MAC CE, Medium Access Control Address Control Element) and DCI signaling.

[0059] As another possible implementation, the first configuration information may be transmitted via separate RRC signaling, separate MACCE signaling or separate DCI signaling. In this embodiment, the RRC signaling or MAC CE signaling or DCI signaling carries a state identifier of one or more TCI states corresponding to the CORESET.

[0060] As another possible implementation manner, the first configuration information may be transmitted via signaling composed of two or more signalings among RRC signaling, MAC CE signaling, and DCI signaling.

[0061] Mode 1, the first configuration information can be transmitted through a signaling including a combination of RRC signaling and MAC CE signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate the state identifier of the first number of TCI states corresponding to the CORESET, wherein the first number is an integer greater than 1. Further, the UE receives MAC CE signaling sent by the network device, wherein the MAC CE signaling is used to activate one or more state identifiers of the first number of TCI states, and the beam corresponding to the activated one or more TCI state identifiers can be used to receive the control signaling carried on the PDCCH. Optionally, the MAC CE includes multiple bits, each bit corresponds to a state identifier of a TCI state, and the activation state of the state identifier of the corresponding TCI state can be characterized by the value of each bit. For example, a bit is "1", indicating that the state identifier of the TCI state corresponding to the bit position is activated, otherwise it indicates that the state identifier of the TCI state corresponding to the bit position is not activated.

[0062] Mode 2, the first configuration information can be transmitted by signaling including a combination of RRC signaling and DCI signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate the state identifier of the second number of TCI states corresponding to the CORESET, wherein the second number is an integer greater than 1. Further, the UE receives DCI signaling sent by the network device, wherein the DCI signaling is used to indicate one or more state identifiers of the second number of TCI states, and the beam corresponding to the indicated one or more TCI state identifiers can be used to receive the control signaling carried on the PDCCH. Optionally, the DCI signaling includes multiple bits, each bit corresponds to a state identifier of a TCI state, and the activation state of the state identifier of the corresponding TCI state can be characterized by the value of each bit. For example, a bit is "1", indicating that the state identifier of the TCI state corresponding to the bit position is activated, otherwise it indicates that the state identifier of the TCI state corresponding to the bit position is not activated, that is, the state identifier of the TCI state corresponding to the bit position is deactivated, that is, it is not activated.

[0063] Mode 3: The first configuration information may be transmitted by signaling including a combination of RRC signaling, MAC CE signaling, and DCI signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate a state identifier of a third number of TCI states corresponding to the CORESET, wherein the third number is an integer greater than 1.

[0064] Further, the UE receives MAC CE signaling sent by the network device, wherein the MAC CE signaling carries an activation indication of a state identifier of a TCI state, and the activation indication of the state identifier is used to activate the state identifiers of a fourth number of TCI states among the state identifiers of a third number of TCI states. The process of activating the state identifiers of the fourth number of TCI states among the state identifiers of the third number of TCI states by MAC CE signaling is similar to the activation process in method 2, and is not repeated here.

[0065] Furthermore, the MAC CE signaling also carries a mapping relationship between a TCI state identifier combination and a code point value of the TCI state identifier combination, and the TCI state identifier combination includes at least one state identifier of a fourth number of TCI states. The UE receives DCI signaling sent by a network device, wherein the DCI signaling carries a code point value. It should be noted that the TCI state identifier combination includes at least one state identifier of a fourth number of TCI states, and different numbers of TCI state identifiers can constitute different TCI state identifier combinations. In this embodiment, a corresponding code point value is configured for each TCI state identifier combination, and a mapping relationship between the TCI state identifier combination and the code point value is established, and sent to the UE via MAC CE signaling.

[0066] In this application, in order to distinguish from other mapping relationships in each embodiment of this application, the mapping relationship between the TCI state identifier combination and the code point value of the TCI state identifier combination is referred to as the first mapping relationship, and no further description is given below. In order to distinguish from other code point values ​​in each embodiment of this application, the code point value carried by the DCI signaling in this embodiment is referred to as the first code point value, and no further description is given below.

[0067] S302: Determine a state identifier of a target TCI state according to the first configuration information.

[0068] Optionally, when the first configuration information is a separate RRC signaling, a separate MAC CE signaling or a separate DCI signaling, in this embodiment, the RRC signaling or MAC CE signaling or DCI signaling carries a state identifier of one or more TCI states corresponding to the CORESET and is determined as the state identifier of the target TCI state.

[0069] Optionally, when the first configuration information is the configuration information provided in method 1 of this embodiment, one or more state identifiers of the first number of TCI states activated by MAC CE signaling are determined as the state identifier of the target TCI state.

[0070] Optionally, when the first configuration information is the configuration information provided by method 2 of this embodiment, one or more state identifiers of the second number of TCI states indicated by the DCI are determined as the state identifiers of the target TCI state.

[0071] Optionally, when the first configuration information is the configuration information provided by method 3 of this embodiment, the UE determines the target TCI state identifier combination according to the first code point value carried by the DCI and the above-mentioned first mapping relationship. Optionally, the UE queries the above-mentioned first mapping relationship according to the first code point value carried by the DCI, and then can obtain the TCI state identifier combination corresponding to the first code point value, and the TCI state identifier combination corresponding to the first code point value can be determined as the target TCI state identifier combination. Further, the state identifier of the target TCI state is determined according to the target TCI state identifier combination.

[0072] For example, the 3-bit code point value can be 001, 010, 011, etc. The TCI state identifier combination corresponding to 001 is combination A1, the TCI state identifier combination corresponding to 010 is combination A2, and the TCI state identifier combination corresponding to 011 is combination A3, wherein combination A1 includes the state identifier T1 of the TCI state. Combination 2 includes the state identifier T1 of the TCI state and the state identifier T2 of the TCI state, and combination A3 includes the state identifiers T1 and T3 of the TCI state. Based on the first code point value 011 carried by the DCI, the UE can determine that the target TCI state identifier combination is combination A3, and then obtain combination A3 including the TCI state identifiers T1 and T3 as the state identifiers of the target TCI state.

[0073] S303, determine the reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signal.

[0074] In this embodiment, step S303 can be implemented in any of the embodiments of the present application, and this embodiment does not limit this and will not be described in detail.

[0075] It should be noted that, for any implementation of the first configuration information of this embodiment, in response to the first configuration information indicating that the state identifier of the TCI state corresponding to the CORESET is one, the UE uses the beam corresponding to the state identifier of the TCI state corresponding to the CORESET to receive the control signaling carried on the PDCCH.

[0076] In response to the first configuration information indicating that the state identifier of the TCI state corresponding to the CORESET is multiple, the UE uses the beams corresponding to the state identifiers of the multiple TCI states corresponding to the CORESET to receive the control signaling carried on the PDCCH.

[0077] In this embodiment, first configuration information of a control resource set sent by a network device is received. The first configuration information is used as indication information to instruct the UE to use one or more target TCI states to receive control signaling carried on the PDCCH. Based on the first configuration information, the UE determines the state identifier of the target TCI state, determines the reference signal corresponding to the state identifier of the target TCI state, and uses the beam corresponding to the reference signal to receive the control signaling carried on the PDCCH. In this embodiment, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that a single TCI state or multiple TCI states matching the TRP working mode used by the network device can be used to receive the corresponding control signaling. That is to say, according to the working mode adopted by the network device, one or more TCI states are used to receive the control signaling, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

[0078] This embodiment provides another transmission method. Figure 4 A flow chart of another transmission method provided for an embodiment of the present application is performed by a UE. In the method provided in this implementation, the UE can receive second configuration information of the SS set sent by the network device, and the second configuration information is used as indication information to determine the use of one or more target TCI states to receive control signaling carried on the PDCCH.

[0079] S401: Receive second configuration information of a search space set sent by a network device, where the second configuration information is indication information.

[0080] The second configuration information is used to indicate one or more CORESETs associated with the SS set. In this embodiment, the second configuration information may be transmitted through at least one of RRC signaling, MAC CE signaling, and DCI signaling.

[0081] As another possible implementation, the second configuration information may be transmitted via separate RRC signaling, separate MACCE signaling or separate DCI signaling. In this embodiment, the RRC signaling or MAC CE signaling or DCI signaling carries one or more target CORESETs associated with the SSset.

[0082] As another possible implementation manner, the second configuration information may be transmitted via signaling composed of two or more signalings among RRC signaling, MAC CE signaling and DCI signaling.

[0083] Mode 1, the second configuration information can be transmitted by signaling including a combination of RRC signaling and MAC CE signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate the fifth number of CORESETs associated with the SS set, wherein the fifth number is an integer greater than 1. In implementation, the SS set may be associated with the fifth number of CORESETs, and whether it is associated with the fifth number of CORESETs requires a step of indication. Further, the UE receives MAC CE signaling sent by the network device, wherein the MAC CE signaling is used to activate the identifiers of one or more target CORESETs in the fifth number of CORESETs. In this embodiment, the state identifier corresponding to the TCI state of the identifier of the activated one or more target CORESETs corresponds to the beam that can be used to receive the control signaling carried on the PDCCH. Optionally, the MAC CE includes multiple bits, each bit corresponds to the identifier of a CORESET, and the activation state of the corresponding CORESET identifier can be characterized by the value of each bit. For example, if a bit is "1", it indicates that the flag of the CORESET corresponding to the bit is activated, otherwise it indicates that the flag of the CORESET corresponding to the bit is not activated.

[0084] Mode 2, the second configuration information can be transmitted through signaling including a combination of RRC signaling and DCI signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate the sixth number of CORESETs corresponding to the CORESET, wherein the sixth number is an integer greater than 1. In implementation, the SS set may be associated with the sixth number of CORESETs, and whether it is associated with the sixth number of CORESETs requires a step of indication. Further, the UE receives DCI signaling sent by the network device, wherein the DCI signaling is used to indicate the identifiers of one or more target CORESETs in the sixth number of CORESETs. In this embodiment, the beam corresponding to the state identifier of the TCI state corresponding to the identifier of the indicated one or more target CORESETs can be used to receive control signaling carried on the PDCCH. Optionally, the DCI signaling includes multiple bits, each bit corresponds to the identifier of a CORESET, and the activation state of the corresponding CORESET identifier can be characterized by the value of each bit. For example, if a bit is "1", it indicates that the flag of the CORESET corresponding to the bit is activated, otherwise it indicates that the flag of the CORESET corresponding to the bit is not activated, that is, it indicates that the flag of the CORESET corresponding to the bit is deactivated, that is, not activated.

[0085] Mode 3, the second configuration information can be transmitted by signaling including RRC signaling and also including one or two combinations of MAC CE signaling and DCI signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate a target CORESET associated with the SS set. In this embodiment, the target CORESET is always associated with the SS set by default unless reconfigured by RRC signaling. Optionally, the CORESET with a smaller CORESET identifier can be configured as the default CORESET that is always associated with the SSset.

[0086] Furthermore, RRC signaling is also used to indicate other CORESETs that the SS set may be associated with. In implementation, whether to associate with the other CORESET requires a step of indication. Furthermore, the UE receives MAC CE signaling and / or DCI signaling sent by the network device, wherein the MAC CE signaling and / or DCI signaling is used to indicate activation information of the association relationship between the SS set and other CORESETs. In this embodiment, the CORESET whose association relationship is activated is determined as the target control resource set. Optionally, the MAC CE signaling or DCI signaling includes multiple bits, each bit corresponding to the identifier of a CORESET in other CORESETs, and the activation information of the association relationship between the SS set and the identifier of the CORESET can be represented by the value of each bit, and the activation state of the association relationship can be represented by the activation information.

[0087] For example, RRC signaling gives two CORESETs associated with the SS set, one of which is the default target CORESET that is always associated with the SS set, and the other is activated by MAC CE signaling or DCI signaling. The MACCE signaling contains 1 bit, which corresponds to the ID of another CORESET. When the value of this bit is "1", it indicates that the association between the SS set and the other CORESET is activated, otherwise it indicates that it is not activated. Similarly, the DCI signaling contains 1 bit, which corresponds to the ID of another CORESET. When the value of this bit is "1", it indicates that the association between the SS set and the other CORESET is activated, otherwise it indicates that it is not activated.

[0088] Mode 4, the second configuration information can be transmitted through signaling including a combination of RRC signaling, MAC CE signaling and DCI signaling. The UE receives RRC signaling sent by the network device, wherein the RRC signaling is used to indicate the eighth number of CORESETs associated with the SS set. In implementation, the SS set may be associated with the eighth number of CORESETs, and whether to associate with the eighth number of CORESETs requires a step of indication. Further, the UE receives MAC CE signaling sent by the network device, wherein the MAC CE signaling carries an activation indication of the CORESET, and the activation indication of the CORESET is used to activate the identifiers of the ninth number of CORESETs among the identifiers of the eighth number of CORESEs. The process of activating the identifiers of the ninth number of CORESETs among the identifiers of the eighth number of CORESEs by MAC CE signaling is similar to the activation process in Mode 2 of this embodiment, and will not be repeated here.

[0089] Further, the MAC CE signaling further carries a mapping relationship between a CORESET identifier combination and a code point value of the CORESET identifier combination, and further, the UE receives a DCI signaling sent by the network device, wherein the DCI signaling carries a code point value. The CORESET identifier combination includes at least one of the identifiers of the ninth number of CORESETs.

[0090] It should be noted that the CORESET identifier combination includes at least one CORESET identifier. Different numbers of CORESET identifiers can form different CORESET identifier combinations. In this embodiment, a corresponding code point value is configured for each CORESET identifier combination, and a mapping relationship between the CORESET identifier combination and the code point value is established, and sent to the UE through MAC CE signaling.

[0091] In this application, in order to distinguish from other mapping relationships in various embodiments of the present application, the mapping relationship between the CORESET identifier combination in this embodiment and the code point value of the CORESET identifier combination is referred to as the second mapping relationship, and no further description is given later. In order to distinguish from other code point values ​​in various embodiments of the present application, the code point value carried by the DCI signaling in this embodiment is referred to as the second code point value, and no further description is given later.

[0092] S402: Determine a state identifier of a target TCI state according to the second configuration information.

[0093] Optionally, when the second configuration information is a separate RRC signaling, a separate MAC CE signaling or a separate DCI signaling, in this embodiment, the state identifier of the TCI state corresponding to the target CORESET associated with the SS set carried by the RRC signaling, MAC CE signaling or DCI signaling is determined as the state identifier of the TCI state.

[0094] Optionally, when the second configuration information is the configuration information provided by method 1 in this embodiment, the identifiers of one or more target CORESETs among the fifth number of CORESETs activated by MAC CE signaling determine the state identifier of the TCI state corresponding to the identifiers of the activated one or more target CORESETs as the state identifier of the target TCI state.

[0095] Optionally, when the second configuration information is the configuration information provided by method 2 in this embodiment, the DCI signaling indicates the identifiers of one or more target CORESETs among the sixth number of CORESETs, and the state identifier of the TCI state corresponding to the identifier of the indicated target CORESET is determined as the state identifier of the target TCI state.

[0096] Optionally, when the second configuration information is the configuration information provided in method 3 of this embodiment, the state identifier of one or more TCI states corresponding to the target CORESET that has been associated with the SS set is determined as the state identifier of the target TCI state. Optionally, if there is an identifier of a target CORESET whose association relationship with the SS set is activated or indicated in other CORESETs, the state identifier of the TCI state corresponding to the identifier of the activated or indicated target CORESET is also determined as the state identifier of the target TCI state.

[0097] Optionally, when the second configuration information is the configuration information provided by mode 4 in this embodiment, the UE determines the target CORESET identifier combination according to the second code point value carried by the DCI signaling and the above-mentioned second mapping relationship. Optionally, the UE queries the above-mentioned second mapping relationship according to the second code point value carried by the DCI signaling, and then obtains the CORESET identifier combination corresponding to the second code point value, and the CORESET identifier combination corresponding to the second code point value can be determined as the target CORESET identifier combination. Further, the state identifier of the target TCI state is determined according to the target CORESET identifier combination.

[0098] For example, the 3-bit code point value is 001, 010, 011, etc. The CORESET identification combination corresponding to 001 is combination B1, the CORESET identification combination corresponding to 010 is combination B2, and the CORESET identification combination corresponding to 011 is combination B3, wherein combination B1 includes CORESET identification C1. Combination B2 includes CORESET identification C1 and CORESET identification C2, and combination B3 includes CORESET identifications C1 and C3. The UE can determine that the CORESET identification combination is combination B3 based on the second code point value 011 carried by the DCI signaling, and then obtain that combination B3 includes CORESET identifications C1 and C3, and the CORESET identifications C1 and C3 are the target CORESET identifications, and then determine the state identification of the TCI state corresponding to C1 and C3 as the state identification of the target TCI state.

[0099] S403, determine the reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signal.

[0100] In the embodiments of the present application, step S403 may be implemented in any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0101] It should be noted that, for any implementation of the second configuration information of this embodiment, for one or more CORESETs associated with the SS set, each CORESET corresponds to a state identifier of a TCI state and is carried in the configuration information of the CORESET. Optionally, the configuration information of the CORESET can be sent to the UE by the network device before or after the second configuration information. Optionally, the configuration information of the CORESET can be sent to the UE by the network device synchronously with the second configuration information.

[0102] In response to the second configuration information indicating that the target CORESET associated with the SS set is one, the UE determines the state identifier of the TCI state corresponding to the target CORESET as the state identifier of the target TCI state, and uses the beam corresponding to the state identifier of the target TCI state to receive control signaling.

[0103] In response to the second configuration information indicating that there are multiple target CORESETs associated with the SS set, the UE determines the state identifier of the TCI state corresponding to each target CORESET in the multiple target CORESETs as the state identifier of the target TCI state, and uses the beam corresponding to the state identifier of the target TCI state to receive control signaling.

[0104] In this embodiment, the second configuration information of the search space set sent by the network device is received. The second configuration information is used as indication information to instruct the UE to use one or more target TCI states to receive the control signaling carried on the PDCCH. Based on the second configuration information, the UE determines the state identifier of the target TCI state, determines the reference signal corresponding to the state identifier of the target TCI state, and uses the beam corresponding to the reference signal to receive the control signaling carried on the PDCCH. In this embodiment, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that a single TCI state or multiple TCI states matching the TRP working mode used by the network device can be used to receive the corresponding control signaling. That is to say, according to the working mode adopted by the network device, one or more TCI states are used to receive the control signaling, thereby achieving the matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

[0105] This embodiment provides another transmission method. Figure 5 A flow chart of another transmission method provided for an embodiment of the present application, which is executed by a UE. In the method provided in this implementation, the UE can receive third configuration information used by a network device to activate a link relationship between association pairs within an association pair group, and the third configuration information is used as indication information, and the control signaling carried on the PDCCH is determined to be received using one or more target TCI states through the third configuration information.

[0106] S501: Receive third configuration information sent by a network device for activating a connection relationship between association pairs in an association pair group, wherein the third configuration information is indication information.

[0107] In this embodiment, each association pair includes a search space set and a control resource set associated with the search space set. The third configuration information is used to activate the link relationship between the association pairs included in the association pair group. For example, SS set 1 is associated with SS set 1 CORESET 1 to form an association pair 1, and SS set 2 is associated with SS set 2 CORESET 2 to form an association pair 2. Association pair 1 and association pair 2 can form an association pair group, wherein association pair 1 and association pair 2 can have a link relationship, and the link relationship can be activated by the third configuration information.

[0108] In this embodiment, the third configuration information may be transmitted through at least one of RRC signaling, MAC CE signaling, and DCI signaling.

[0109] As another possible implementation, the third configuration information may be transmitted via separate RRC signaling, separate MACCE signaling, or separate DCI signaling. In this embodiment, the RRC signaling or MAC CE signaling or DCI signaling carries the group identification information of the association pair group for which the link relationship needs to be activated, wherein the group identification information corresponds to the identification of the SS set in each association pair included in the association pair group and the identification of the CORESET associated with the SS set.

[0110] As another possible implementation manner, the third configuration information is transmitted via signaling composed of two or more signalings among RRC signaling, MAC CE signaling and DCI signaling.

[0111] Mode 1, the third configuration information can be transmitted by including RRC signaling and / or MAC CE signaling. The UE receives RRC signaling and / or MAC CE signaling sent by the network device, wherein the RRC signaling and / or MAC CE signaling carries the group identification information of the associated pair group. The group identification information corresponds to the identifier of the SS set in the associated pair included in the associated pair and the identifier of the CORESET associated with the SS set. Optionally, the RRC signaling carries the group identification information of the associated pair group, and further, the UE receives the MAC CE signaling sent by the network device, wherein the MAC CE signaling is also used to indicate the group identification information of the associated pair group for which the link relationship needs to be activated. Optionally, the MAC CE signaling carries the group identification information of the associated pair group, and the MAC CE signaling is also used to indicate the group identification information of the associated pair group for which the link relationship needs to be activated. Optionally, both the RRC signaling and the MAC CE signaling are used to carry the group identification information of the associated pair group, and the MAC CE signaling is also used to indicate the group identification information of the associated pair group for which the link relationship needs to be activated.

[0112] For example, association pair 1 and association pair 2 form association pair group 1. If the link relationship between association pair 1 and association pair 2 needs to be activated, the MAC CE signaling carries the group identification information "1" of association pair group 1 or the MAC CE signaling carries the bit position corresponding to the group identification information of association pair group 1. The UE can determine the identifier S1 of the SS set in the corresponding association pair 1, the identifier C1 of the CORESET associated with the SS set, the identifier S2 of the SS set in the association pair 2, and the identifier C2 of the CORESET associated with the SS set according to the group identification information "1".

[0113] Optionally, the RRC signaling may give the identifiers of two CORESETs and the identifiers of two SS sets, or give the identifiers of two CORESETs and the bit positions of the MAC CE signaling corresponding to the identifiers of the two SS sets, or this position is the default. The RRC may also give the group identification information that forms an association pair group or the bit position of the MAC CE signaling corresponding to the group identification information. For example, the association pair 1 corresponding to the SS set #0 of CORESET #0 and the association pair 2 corresponding to the SS set #1 of CORESET #1 form an association pair group, and the link relationship between the association pair 1 and the association pair 2 corresponds to the lowest bit of the MAC CE signaling. For example, the lowest bit is "1", indicating that the above-mentioned link relationship corresponding to the bit position is activated, otherwise it indicates that the above-mentioned link relationship corresponding to the bit position is not activated, that is, the above-mentioned link relationship corresponding to the bit position is deactivated.

[0114] Optionally, the UE receives RRC signaling sent by the network device, wherein the RRC signaling carries identification information of an association pair. The identification information of the association pair corresponds to the SS set identification included in the association pair and the identification of the CORESET associated with the SS set. Further, the UE receives MAC CE signaling sent by the network device, and the MAC CE signaling is used to activate the association pair. In the implementation, one or more association pairs that are activated are a target association pair group. It should be noted that if the MAC CE signaling activates only one association pair, it indicates that the UE receives control signaling in a single TCI state, that is, the network device adopts transmission based on a single TRP. Similarly, the MAC CE signaling carries a bit position corresponding to the identification information of the association pair, and determines whether to activate the association pair corresponding to the bit position through the value of the bit position.

[0115] Mode 2, the third configuration information can be transmitted by including one or two signalings in RRC signaling and / or MAC CE signaling, and signaling combined with DCI signaling. The UE receives RRC signaling and / or MAC CE signaling sent by the network device, wherein the RRC signaling and / or MAC CE signaling carries group identification information of the associated pair group. The group identification information corresponds to the identification of the SS set and / or CORESET included in the associated pair in the group. Furthermore, the UE receives DCI signaling sent by the network device, wherein the DCI signaling is used to indicate the identification information of the associated pair for which the link relationship needs to be activated.

[0116] Optionally, the RRC signaling may give the identifiers of two CORESETs and the identifiers of two SS sets, or give the bit positions of the DCI corresponding to the two CORESETs and the two SS sets, or this position is the default. The RRC may also give the group identification information that forms an association pair group or the bit position of the MAC CE signaling corresponding to the group identification information. For example, the association pair 1 corresponding to the SS set #0 of CORESET #0 and the association pair 2 corresponding to the SS set #1 of CORESET #1 form an association pair group, and the link relationship between the association pair 1 and the association pair 2 corresponds to the lowest bit of the DCI. For example, the lowest bit is "1", indicating that the above-mentioned link relationship corresponding to the bit position is activated, otherwise it indicates that the above-mentioned link relationship corresponding to the bit position is not activated, that is, the above-mentioned link relationship corresponding to the bit position is deactivated.

[0117] Optionally, the UE receives RRC signaling sent by the network device, wherein the RRC signaling carries identification information of the association pair. The identification information of the association pair corresponds to the SS set identifier and the CORESET identifier included in the association pair. Further, the UE receives DCI signaling sent by the network device, and the DCI signaling is used to instruct the association pair to activate. In implementation, the activated association pair is a target association pair group. It should be noted that if the DCI signaling only activates one association pair, it instructs the UE to receive control signaling in a single TCI state, that is, the network device adopts transmission based on a single TRP. Similarly, the DCI signaling carries a bit position corresponding to the identification information of the association pair, and determines whether to activate the association pair corresponding to the bit position through the value of the bit position.

[0118] S502: Determine the state identifier of the target TCI state according to the third configuration information.

[0119] In this embodiment, the association pair group whose link relationship is activated is the target association pair group, and the state identifier of the TCI state corresponding to the CORESET in each association pair included in the target association pair group is determined as the state identifier of the target TCI state.

[0120] Optionally, when the third configuration information is transmitted through a separate RRC signaling, a separate MAC CE signaling or a separate DCI signaling, in this embodiment, the association pair group whose link relationship needs to be activated is obtained from the RRC signaling or MAC CE signaling or DCI signaling, wherein the association pair group whose link relationship is activated is the target association pair group, and the state identifier of the TCI state corresponding to the identifier of the CORESET in each association pair in the group corresponding to the group identifier information of the target association pair group is determined as the state identifier of the TCI state.

[0121] Optionally, when the third configuration information is the configuration information provided by method 1 in this embodiment, the UE determines the association pair group corresponding to the activated link relationship according to the MAC CE, and the association pair group in which the link relationship is activated is the target association pair group. The state identifier of the TCI state corresponding to the identifier of the CORESET in each association pair in the group corresponding to the group identifier information of the target association pair group is determined as the state identifier of the TCI state.

[0122] For example, if the link relationship between association pair 1 and association pair 2 needs to be activated, the association pair group formed by association pair 1 and association pair 2 is the target association pair group. The state identifier of the TCI state corresponding to the identifier C1 of the CORESET in association pair 1 and the state identifier of the TCI state corresponding to the identifier C2 of the CORESET in association pair 2 are determined as the state identifier of the target TCI state.

[0123] Optionally, when the third configuration information is the configuration information provided in method 2 of this embodiment, the UE determines the association pair group corresponding to the activated link relationship according to the indication of the DCI, and the association pair group whose link relationship is activated is the target association pair. The state identifier of the TCI state corresponding to the identifier of the CORESET in each association pair in the group corresponding to the group identifier information of the target association pair group is determined as the state identifier of the TCI state.

[0124] It should be noted that the group identification information of the above steps S502 and S503 is used to characterize the association pair group. The correspondence between the identification of the SS set included in each association pair group and the identification of the CORESET associated with the SS set can be notified to the UE through at least one of RRC signaling, MAC CE or DCI signaling.

[0125] S503, determine the reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signal.

[0126] In the embodiments of the present application, step S503 may be implemented in any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0127] It should be noted that when the link relationship between the two associated pairs is activated, the UE can confirm that when receiving the control signaling carried by the PDCCH on the resource of each SS set, it uses a TCI state of each of the two activated associated pairs to receive the control signaling. In implementation, the UE still uses two TCI states to receive control signaling. However, in the transmission scenario where the link relationship is activated, the UE can determine that the PDCCH sent on the two resources is associated, where the association is that the PDCCHs sent on the two resources are parts of the same control signaling, or the PDCCHs sent on the two resources are the complete content of the same control signaling.

[0128] When the link relationship between the two association pairs is not activated, the UE can confirm that when receiving the control signaling carried by the PDCCH on the resource of each SS set, it uses a TCI state of each of the two association pairs to receive the control signaling. In implementation, the UE still uses two TCI states to receive control signaling. However, in the transmission scenario where the link relationship is not activated, the UE can determine that there is no association between the PDCCHs sent on the two resources.

[0129] In this embodiment, the third configuration information sent by the network device for activating the link relationship between the association pairs in the association pair group is received. The third configuration information is used as indication information. Based on the third configuration information, the UE determines the state identifier of the target TCI state, and then determines the reference signal corresponding to the state identifier of the target TCI state, and uses the beam corresponding to the reference signal to receive the control signaling carried on the PDCCH. In this embodiment, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that a single TCI state or multiple TCI states matching the TRP working mode used by the network device can be used to receive the corresponding control signaling. That is to say, according to the working mode adopted by the network device, one or more TCI states are used to receive the control signaling, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

[0130] This embodiment provides another transmission method. Figure 6 A flow chart of another transmission method provided in an embodiment of the present application is performed by a UE. The UE receives indication information and type indication information of resources occupied by control signaling, and determines whether to use one or more target TCI states when receiving control signaling transmitted on occupied resources based on the indication information and type indication information.

[0131] S601, receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target TCI states used by a UE to receive control signaling carried on a PDCCH.

[0132] The indication information may be configuration information of the CORESET and / or SS set. In this embodiment, the indication information in step S601 may be implemented in any manner in each embodiment of the present application, which is not limited in the embodiment of the present application and will not be described in detail.

[0133] S602: Determine the state identifier of the target TCI state according to the indication information.

[0134] In this embodiment, step S602 can be implemented in any of the embodiments of the present application. The embodiments of the present application do not limit this and will not be described in detail.

[0135] S603: Receive information indicating the type of resources occupied by control signaling sent by a network device, wherein the type of occupied resources is a single TCI state transmission type or a multiple TCI state transmission type.

[0136] When the network device sends control signaling carried on the PDCCH to the UE, it needs to occupy resources. In this embodiment, in the scenario where the UE needs to use multiple target TCI states to receive control signaling, the network device can specify the type of each resource occupied by the control signaling, and send corresponding type indication information to the UE to indicate whether each resource occupied by the control signaling uses one target TCI state transmission or multiple target TCI state transmissions. In the implementation, the type of occupied resources is a single TCI state transmission type, or a multiple TCI state transmission type. In this embodiment, when the network device uses a single TRP transmission to send control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a single TCI state transmission type. When the network device uses multiple TRP transmissions to send control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a multiple TCI state transmission type.

[0137] As a possible implementation, the type indication information carries an identifier of the occupied resources using a single TRP transmission or an identifier of the occupied resources using multiple TRP transmission. In some implementations, the UE and the network device may negotiate in advance to indicate in the type indication information whether the identifier of the occupied resources using a single TRP transmission or the identifier of the occupied resources using multiple TRP transmission. When the UE receives the type indication information, it can determine the type of resources occupied by the control signaling to be received. In some implementations, the type indication information not only carries the identifier of the occupied resources, but also occupies an additional bit, and the type of occupied resources is characterized by the bit. For example, a bit value of "1" indicates that the type of occupied resources carried in the type indication information is a single TCI state transmission type, and a bit value of "0" indicates that the type of occupied resources carried in the type indication information is a multiple TCI state transmission type. In this implementation, only resources of a single TCI state transmission type or only resources of a multiple TCI state transmission type are indicated in the type indication information. The type of other resources not indicated is a single TCI state transmission type.

[0138] For example, based on the configuration information of CORESET, it is determined that multiple target TCI states need to be used to receive control signaling, and the UE further receives type indication information. According to the type indication information, it can be determined that the type of the part of the frequency domain resources of the CORESET occupied by the control signaling is a multi-TCI state transmission type, then the UE uses multiple TCI states to receive the control signaling transmitted by the part of the frequency domain resources. And the UE uses a target TCI state to receive the control signaling transmitted by the remaining frequency domain resources. Part of the frequency domain resources of the CORESET can be indicated by the number of RBs, or by one or more PDCCH candidates, or by one or more control channel elements (CCE, Control Channel Element) occupied by a PDCCH candidate, or by a resource element group (REG, Resource Element Group) bundle occupied by a CCE.

[0139] For example, based on the configuration information of the SS set or the SS set and the CORESET, it is determined that multiple target TCI states are needed to receive control signaling, and the UE further receives type indication information. According to the type indication information, it can be determined that the type of the partial resources of the SS set occupied by the control signaling is a multi-TCI state transmission type, then the UE uses multiple TCI states to receive the control signaling transmitted by the partial resources. And the UE uses a target TCI state to receive the control signaling transmitted by the remaining frequency domain resources. The partial resources of the SS set may be partial frequency domain resources, which are partial frequency domain resources of the CORESET associated with the SS set, for example, which may be indicated by the number of RBs, or by one or more PDCCH candidates, or by one or more CCEs occupied by a PDCCH candidate, or by a REG bundle occupied by a CCE. The partial resources of the SS set may be partial time domain resources, which are a portion of symbols corresponding to a CCE.

[0140] In this embodiment, the resources occupied by the control signaling carried on the PDCCH may also be one of the following resources:

[0141] Optionally, the occupied resources may be CORESETs, that is, clearly indicating which CORESETs are used for multiple TRP transmissions and which CORESETs are used for single TRP transmissions, as described in the method above.

[0142] Optionally, the occupied resources may be SS sets, i.e., clearly indicating which SS sets are used for multiple TRP transmissions and which SS sets are used for single TRP transmissions, as described in the method above.

[0143] After the network device confirms the control signaling sent with a single TRP and the control signaling sent with multiple TRPs, the network device can select resources as needed. When the UE detects its own PDCCH during blind detection, it knows whether the control signaling is received using one target TCI state or multiple target TCI states based on the type indication information of the resources occupied by the control signaling.

[0144] S604, determine the reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signal.

[0145] In this embodiment, after determining the state identifier of the target TCI state of the resources occupied by the control signaling according to the type indication information, the corresponding reference signal can be determined based on the state identifier of the target TCI state, and the control signaling can be received using the beam corresponding to the reference signal.

[0146] In this embodiment, step S604 can be implemented in any of the ways in the embodiments of the present application. The embodiments of the present application do not limit this and will not be described in detail.

[0147] In this embodiment, the indication information sent by the network device and the type indication information of the control signaling occupied resources are received, and the UE determines whether to use one or more target TCI states when receiving the control signaling transmitted on the occupied resources based on the indication information and the type indication information. In this embodiment, the type of resources occupied by the control signaling can be indicated, and then according to the type of the occupied resources, a suitable receiving mode is adopted for reception, which can ensure that the UE can correctly receive and decode the control signaling, and improve the decoding success rate of the control signaling.

[0148] This embodiment provides another transmission method. Figure 7 A flow chart of another transmission method provided in an embodiment of the present application is performed by a UE. The UE receives an association relationship between indication information and resources occupied by control signaling, and determines whether to use one or more target TCI states when receiving control signaling transmitted on the occupied resources based on the indication information and the association relationship.

[0149] S701, receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target TCI states used by a UE to receive control signaling carried on a PDCCH.

[0150] The indication information may be configuration information of the CORESET and / or SS set. In this embodiment, the indication information in step S701 may be implemented in any manner in each embodiment of the present application, which is not limited in the embodiment of the present application and will not be described in detail.

[0151] S702: Determine the state identifier of the target TCI state according to the indication information.

[0152] In this embodiment, step S702 can be implemented in any of the ways in the embodiments of the present application. The embodiments of the present application do not limit this and will not be described in detail.

[0153] S703, receiving the association relationship between the resources occupied by the control signaling sent by the network device, determining the occupied resources with the association relationship as the multi-TCI state transmission type, and determining the occupied resources without the association relationship as the single TCI state transmission type.

[0154] When the network device sends the control signaling carried on the PDCCH to the UE, it needs to occupy resources. In this embodiment, in the scenario where the UE receives the control signaling based on the state identifier that needs to use multiple target TCI states, the network device can specify the type of each resource occupied by the control signaling and notify the UE. In this embodiment, the type indication information can be through the association relationship between the occupied resources, wherein the association relationship carries the identifier of the associated resources. According to the association relationship, the UE can determine whether each resource occupied by the control signaling uses one target TCI state transmission or multiple target TCI state transmissions. Optionally, the occupied resources with an associated relationship are determined as a multi-TCI state transmission type, and the occupied resources without an associated relationship are determined as a single TCI state transmission type. In this embodiment, when the network device uses a single TRP transmission to send the control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a single TCI state transmission type. When the network device uses multiple TRP transmissions to send the control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a multi-TCI state transmission type.

[0155] For example, based on the configuration information of CORESET, it is determined that multiple target TCI states need to be used to receive control signaling. Further, the UE receives the association relationship between the resources occupied by the control signaling sent by the network device. According to the identifier of the resource carried by the association relationship, the resources that may have an association relationship are determined as a multi-TCI state transmission type. The UE uses multiple TCI states to receive the control signaling transmitted on the resources with an association relationship.

[0156] In this embodiment, the associated granularity of the resources occupied by the control signaling carried on the PDCCH may be one of multiple resource dimensions:

[0157] Optionally, the association granularity of the occupied resources may be CORESET, that is, indicating which CORESETs are associated.

[0158] Optionally, the association granularity of the occupied resources may be SS set, that is, indicating which SS sets have an association relationship.

[0159] Optionally, the association granularity of the occupied resources may be PDCCH candidate, ie, indicating which PDCCH candidates are associated.

[0160] Optionally, the association granularity of the occupied resources may be different CCEs under the same PDCCH candidate, that is, indicating which CCEs have an association relationship.

[0161] Optionally, the association granularity of the occupied resources may be different REG bundles under the same CCE, that is, indicating which REG bundles have an association relationship.

[0162] Optionally, the association granularity of the occupied resources may be resources on different symbols under the same CCE, that is, indicating which symbols have an association relationship.

[0163] Optionally, the association granularity of the occupied resources may be different REGs under the same REG bundle, that is, indicating which REGs have an association relationship.

[0164] Optionally, the association granularity of the occupied resources may be different resource elements (REs) under the same REG, that is, indicating which REs have an association relationship.

[0165] Optionally, the association relationship between the resources occupied by the control signaling can be notified to the UE through RRC signaling, or a combination of RRC signaling and MAC CE signaling.

[0166] After the network device confirms the control signaling sent using a single TRP and the control signaling sent using multiple TRPs, the network device can select resources as needed. When the UE detects its own PDCCH during blind detection, it knows whether the control signaling is received using one target TCI state or multiple target TCI states based on the association between the resources occupied by the control signaling.

[0167] S704, determine the reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signal.

[0168] In this embodiment, after determining the state identifier of the target TCI state of the resources occupied by the control signaling according to the association relationship in S603, the corresponding reference signal can be determined based on the state identifier of the target TCI state, and the control signaling can be received using the beam corresponding to the reference signal.

[0169] In this embodiment, step S704 can be implemented in any of the embodiments of the present application. The embodiments of the present application do not limit this and will not be described in detail.

[0170] In this embodiment, the indication information sent by the receiving network device and the association relationship between the resources occupied by the control signaling are received, and the UE determines whether to use one or more target TCI states when receiving the control signaling transmitted on the occupied resources based on the indication information and the association relationship. In this embodiment, the association relationship between the resources occupied by the control signaling can be indicated, the type of the occupied resources can be determined based on the association relationship, and a suitable receiving mode can be used for reception according to the type of the occupied resources, which can ensure that the UE can correctly receive and decode the control signaling and improve the decoding success rate of the control signaling.

[0171] Figure 8 A flowchart of another data transmission method provided in an embodiment of the present application is provided, which is executed by a network device and can realize multi-TRP-based transmission or single-TRP-based transmission to a UE on a PDCCH. The network device may be a base station. Figure 8 As shown, the transmission method includes the following steps:

[0172] S801, determine the working mode used for sending the control signaling carried on the PDCCH, where the working mode is transmission based on a single TCI state or transmission based on multiple TCI states.

[0173] In an embodiment of the present application, the network device may determine the working mode adopted for sending the control signaling carried on the PDCCH, and the working mode may be transmission based on a single TCI state or transmission based on multiple TCI states. In this embodiment, the transmission of a single TCI state is the transmission between the network device and the UE based on a single TRP, and the transmission of multiple TCI states is the transmission between the network device and the UE based on multiple TRPs.

[0174] The network device can monitor the channel conditions of each TRP and the resource status of the CORESET to determine the working mode. Taking two TRP transmissions as an example, if the channel conditions of the two TRPs are good, it can be determined that the two TRPs are used for transmission. If the channel condition of one of the TRPs is poor, it can be determined that the TRP with better channel conditions is used for transmission, that is, one TRP is used for transmission. Similarly, if the CORESETs of the two TRPs have sufficient resources, it can be determined that the two TRPs are used for transmission. If the CORESET resources of one of the TRPs are less, it can be determined that the TRP with sufficient CORESET resources is used for transmission, that is, one TRP is used for transmission.

[0175] S802, sending indication information to the UE, where the indication information is used to indicate one or more target TCI states used by the UE to receive control signaling carried on the PDCCH.

[0176] In some embodiments of the present application, the indication information may be configuration information or other information transmitted on PBCH and / or PDCCH and / or PDSCH. For example, the indication information may be configuration information of CORESET and / or SS set, and the network device may determine the state identifier of the target TCI state according to the configuration information of CORESET and / or SS set. In some embodiments, the network device may send indication information to the UE via configuration signaling, control signaling or other signaling transmitted on PBCH and / or PDCCH and / or PDSCH, or signaling composed of multiple signalings. The specific form of the indication information is not limited in this embodiment.

[0177] The indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH, that is, the indication information can indicate whether the UE uses one target TCI state or multiple target TCI states when receiving the control signaling. In some embodiments of the present application, the control signaling DCI signaling carried on the PDCCH may also be other signaling. In this embodiment, the specific form of the control signaling signaling carried on the PDCCH is not limited.

[0178] In some embodiments of the present application, the network device may determine the indication information according to the working mode adopted for sending the control signaling carried on the PDCCH. When the working mode adopted by the network device is based on single TRP transmission, the indication information is used to indicate a target TCI state used by the UE to receive the control signaling carried on the PDCCH. When the working mode adopted by the network device is based on multi-TRP transmission, the indication information is used to indicate multiple target TCI states used by the UE to receive the control signaling carried on the PDCCH.

[0179] S803: Send control signaling to the UE on the PDCCH.

[0180] In an embodiment of the present application, the network device may send control signaling to the UE on the PDCCH to provide services to the UE. It is understood that the network device may send control signaling to the UE on the PDCCH according to the working mode adopted for sending the control signaling carried on the PDCCH. The working mode may be transmission based on a single TCI state or transmission based on multiple TCI states.

[0181] In this embodiment, the network device may determine the working mode used for sending the control signaling carried on the PDCCH, wherein the working mode is based on transmission of a single TCI state or based on transmission of multiple TCI states, and send indication information to the UE, wherein the indication information is used to indicate the one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH, and send the control signaling to the UE on the PDCCH. Thus, the network device may send indication information to the UE so that the UE can obtain the one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH indicated by the indication information, so that the UE can receive the control signaling using one or more TCI states according to the working mode adopted by the network device, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, improving the decoding success rate of the control signaling, and while taking into account the rationality of resources, it can also improve the efficiency of data transmission.

[0182] Fig. 9 A flowchart of another data transmission method provided in an embodiment of the present application is executed by a network device. Fig. 9 As shown, the transmission method includes the following steps:

[0183] S901, determine the working mode used for sending the control signaling carried on the PDCCH, where the working mode is transmission based on a single TCI state or transmission based on multiple TCI states.

[0184] In the embodiments of the present application, step S901 may be implemented in any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0185] S902, sending first configuration information of a control resource set to the UE, wherein the first configuration information is indication information, and the first configuration information is used to indicate a state identifier of one or more TCI states corresponding to the control resource set, and one or more TCI states corresponding to the state identifiers of the one or more TCI states are target TCI states.

[0186] In some embodiments of the present application, the indication information may be first configuration information of CORESET. The first configuration information is used to indicate the state identifier of one or more TCI states corresponding to CORESET, and the one or more TCI states corresponding to the state identifier of one or more TCI states are target TCI states.

[0187] In some embodiments of the present application, sending the first configuration information of the CORESET to the UE may include sending RRC signaling or MAC CE signaling or DCI signaling to the UE, wherein the RRC signaling or MAC CE signaling or DCI signaling carries a state identifier of one or more TCI states corresponding to the CORESET.

[0188] It can be understood that the network device can send at least one of RRC signaling, MAC CE signaling, and DCI signaling to the UE to send the first configuration information to the UE.

[0189] Regarding the process of the network device sending the first configuration information to the UE, it can be implemented by any of the methods in the various embodiments of the present application. This embodiment does not limit this and will not be repeated.

[0190] It should be noted that, in response to the first configuration information indicating that the state identifier of the TCI state corresponding to the CORESET is one, the network device may instruct the UE to use the beam corresponding to the state identifier of the TCI state corresponding to the CORESET to receive the control signaling carried on the PDCCH.

[0191] Alternatively, the network device may also, in response to the first configuration information indicating that there are multiple state identifiers of the TCI state corresponding to the CORESET, instruct the UE to use the beams corresponding to the state identifiers of the multiple TCI states corresponding to the CORESET to receive the control signaling carried on the PDCCH.

[0192] S903: Send control signaling to the UE on the PDCCH.

[0193] In this embodiment, step S903 can be implemented in any of the embodiments of the present application, and this embodiment does not limit this and will not be described in detail.

[0194] In this embodiment, the network device can determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states, and send the first configuration information of the control resource set to the UE, and send the control signaling to the UE on the PDCCH. Thus, the network device can send the first configuration information to the UE so that the UE can obtain one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH indicated by the first configuration information, so that the UE can receive the control signaling using one or more TCI states according to the working mode adopted by the network device, thereby achieving the matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, improving the decoding success rate of the control signaling, and while taking into account the rationality of resources, it can also improve the efficiency of data transmission.

[0195] Fig.10 A flowchart of another data transmission method provided in an embodiment of the present application is executed by a network device. Fig.10 As shown, the transmission method includes the following steps:

[0196] S1001, determine the working mode used for sending the control signaling carried on the PDCCH, where the working mode is transmission based on a single TCI state or transmission based on multiple TCI states.

[0197] In the embodiments of the present application, step S1001 can be implemented in any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0198] S1002, send second configuration information of the search space set to the UE, wherein the second configuration information is indication information, the second configuration information indicates one or more target control resource sets (CORESET) associated with the search space set, and the TCI state corresponding to the state identifier of the TCI state corresponding to the target control resource set is the target TCI state.

[0199] In some embodiments of the present application, the indication information may be second configuration information of the search space set. The second configuration information indicates one or more target CORESETs associated with the search space set, and the TCI state corresponding to the state identifier of the TCI state corresponding to the target CORESET is the target TCI state.

[0200] In some embodiments of the present application, the second configuration information of the search space set is sent to the UE by sending RRC signaling or MAC CE signaling or DCI signaling to the UE, wherein the RRC signaling or MAC CE signaling or DCI signaling indicates one or more target CORESETs associated with the search space set.

[0201] It can be understood that the network device can send at least one of RRC signaling, MAC CE signaling, and DCI signaling to the UE to send the second configuration information to the UE.

[0202] Regarding the process of the network device sending the second configuration information to the UE, it can be implemented by any of the methods in the various embodiments of the present application. This embodiment does not limit this and will not be repeated.

[0203] S1003: Send control signaling to the UE on the PDCCH.

[0204] In this embodiment, step S1003 can be implemented in any of the embodiments of the present application, and this embodiment does not limit this and will not be described in detail.

[0205] In this embodiment, the network device may determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states, and send the second configuration information of the search space set to the UE, and send the control signaling to the UE on the PDCCH. Thus, the network device may send the second configuration information to the UE so that the UE can obtain one or more target TCI states indicated by the second configuration information for the UE to receive the control signaling carried on the PDCCH, so that the UE can use one or more TCI states to receive the control signaling according to the working mode adopted by the network device, thereby achieving the matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, improving the decoding success rate of the control signaling, and while taking into account the rationality of resources, it can also improve the efficiency of data transmission.

[0206] Fig.11 A flowchart of another data transmission method provided in an embodiment of the present application is executed by a network device. Fig.11 As shown, the transmission method includes the following steps:

[0207] S1101, determine the working mode used for sending the control signaling carried on the PDCCH, where the working mode is transmission based on a single TCI state or transmission based on multiple TCI states.

[0208] In the embodiments of the present application, step S1101 can be implemented in any of the embodiments of the present application. The embodiments of the present application do not limit this and will not be described in detail.

[0209] S1102, sending third configuration information to the UE for activating the connection relationship between association pairs in the association pair group, wherein the association pair includes a search space set and a control resource set associated with the search space set, the association pair group includes at least two association pairs, the association pair group in which the connection relationship is activated is the target association pair group, and the TCI state corresponding to the state identifier of the TCI state corresponding to the control resource set included in the target association pair group is the target TCI state.

[0210] In some embodiments of the present application, the indication information may be third configuration information for activating a connection relationship between association pairs in the association pair group. In this embodiment, each association pair includes a search space set and a control resource set associated with the search space set. The third configuration information is used to activate the connection relationship between the association pairs included in the association pair group.

[0211] In some embodiments of the present application, sending third configuration information to a UE for activating a connection relationship between association pairs within an association pair group may include sending RRC signaling or MAC CE signaling or DCI signaling to the UE, wherein the RRC signaling or MAC CE signaling or DCI signaling carries group identification information of the association pair group for activating the connection relationship, and the group identification information corresponds to an identifier of a search space set in the association pairs included in the association pair group and an identifier of a control resource set associated with the search space set.

[0212] It can be understood that the network device can send at least one of RRC signaling, MAC CE signaling, and DCI signaling to the UE to send the third configuration information to the UE.

[0213] Regarding the process of the network device sending the third configuration information to the UE, it can be implemented by any of the methods in the various embodiments of the present application. This embodiment does not limit this and will not be repeated.

[0214] S1103: Send control signaling to the UE on the PDCCH.

[0215] In this embodiment, step S1103 can be implemented in any of the embodiments of the present application, and this embodiment does not limit this and will not be described in detail.

[0216] In this embodiment, the network device may determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states, and send the third configuration information for activating the connection relationship between the associated pairs in the associated pair group to the UE, and send the control signaling to the UE on the PDCCH. Thus, the network device may send the third configuration information to the UE so that the UE can obtain the one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH indicated by the third configuration information, so that the UE can receive the control signaling using one or more TCI states according to the working mode adopted by the network device, thereby achieving the matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, improving the decoding success rate of the control signaling, and while taking into account the rationality of resources, it can also improve the efficiency of data transmission.

[0217] Fig.12 A flowchart of another data transmission method provided in an embodiment of the present application is executed by a network device. Fig.12 As shown, the transmission method includes the following steps:

[0218] S1201, determine the working mode used for sending the control signaling carried on the PDCCH, where the working mode is transmission based on a single TCI state or transmission based on multiple TCI states.

[0219] S1202, sending indication information to the UE, where the indication information is used to indicate one or more target TCI states used by the UE to receive control signaling carried on the PDCCH.

[0220] In this embodiment, step S1201 and step S1202 can be implemented in any way in the embodiments of the present application, respectively. This embodiment does not limit this and will not be repeated.

[0221] S1203: Send control signaling to the UE on the PDCCH, and send indication information of the type of resources occupied by the control signaling to the UE, wherein the type of occupied resources is a single TCI state transmission type or a multiple TCI state transmission type.

[0222] In this embodiment, sending control signaling to the UE on the PDCCH can be implemented by using any of the methods in the various embodiments of the present application. This embodiment does not limit this and will not be described in detail.

[0223] When the network device sends control signaling carried on the PDCCH to the UE, it needs to occupy resources. In this embodiment, in the scenario where the UE needs to use multiple target TCI states to receive control signaling, the network device can specify the type of each resource occupied by the control signaling, and send corresponding type indication information to the UE to indicate whether each resource occupied by the control signaling uses one target TCI state transmission or multiple target TCI state transmissions. In the implementation, the type of occupied resources is a single TCI state transmission type, or a multiple TCI state transmission type. In this embodiment, when the network device uses a single TRP transmission to send control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a single TCI state transmission type. When the network device uses multiple TRP transmissions to send control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a multiple TCI state transmission type.

[0224] Regarding the implementation of the type indication information, it can be implemented by any of the methods in the various embodiments of the present application. This embodiment does not limit this and will not be repeated.

[0225] In this embodiment, the resources occupied by the control signaling carried on the PDCCH may be one of a plurality of resource dimensions. For an introduction to the resource dimensions, please refer to the relevant contents in the above embodiment, which will not be repeated here. After the network device confirms the control signaling sent by a single TRP or the control signaling sent by multiple TRPs, the network device can select resources as needed, so that when the UE detects its own PDCCH during blind detection, it knows whether the control signaling is received using one target TCI state or multiple target TCI states based on the association relationship between the resources occupied by the control signaling.

[0226] In this embodiment, the network device can determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is based on transmission of a single TCI state or based on transmission of multiple TCI states, and send indication information to the UE, and send control signaling to the UE on the PDCCH, and send indication information of the type of resources occupied by the control signaling to the UE, wherein the type of occupied resources is a single TCI state transmission type or a multiple TCI state transmission type. Thus, the network device can send control signaling to the UE, and indication information of the type of resources occupied by the control signaling, so that the UE can determine whether to use one or more target TCI states when receiving the control signaling transmitted on the occupied resources based on the indication information and the type indication information, thereby ensuring that the UE can correctly receive and decode the control signaling, improve the decoding success rate of the control signaling, and can improve the efficiency of data transmission while taking into account the rationality of resources.

[0227] Fig.13 A flowchart of another data transmission method provided in an embodiment of the present application is executed by a network device. Fig.13 As shown, the transmission method includes the following steps:

[0228] S1301, determine the working mode used for sending the control signaling carried on the PDCCH, where the working mode is transmission based on a single TCI state or transmission based on multiple TCI states.

[0229] S1302, sending indication information to the UE, where the indication information is used to indicate one or more target TCI states used by the UE to receive control signaling carried on the PDCCH.

[0230] In this embodiment, step S1301 and step S1302 can be implemented in any way in the embodiments of the present application, respectively. This embodiment does not limit this and will not be repeated.

[0231] S1303, sending control signaling to the UE on the PDCCH, and the association relationship between the resources occupied by the control signaling sent to the UE, wherein the type of occupied resources with an associated relationship is a multi-TCI state transmission type, and the type of occupied resources without an associated relationship is a single TCI state transmission type.

[0232] In this embodiment, sending control signaling to the UE on the PDCCH can be implemented by using any of the methods in the various embodiments of the present application. This embodiment does not limit this and will not be described in detail.

[0233] When the network device sends the control signaling carried on the PDCCH to the UE, it needs to occupy resources. In this embodiment, in the scenario where the UE receives the control signaling based on the state identifier that needs to use multiple target TCI states, the network device can specify the type of each resource occupied by the control signaling and notify the UE. In this embodiment, the type indication information can be an association relationship between the occupied resources, wherein the association relationship carries the identifier of the associated resources, so that the UE can determine whether each resource occupied by the control signaling uses one target TCI state transmission or multiple target TCI state transmissions according to the association relationship. Optionally, the occupied resources with an associated relationship are determined as a multi-TCI state transmission type, and the occupied resources without an associated relationship are determined as a single TCI state transmission type. In this embodiment, when the network device uses a single TRP transmission to send the control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a single TCI state transmission type. When the network device uses multiple TRP transmissions to send the control signaling carried on the PDCCH to the UE, the type of resources occupied by the control signaling is a multi-TCI state transmission type.

[0234] In this embodiment, the resources occupied by the control signaling carried on the PDCCH may be one of a plurality of resource dimensions. For an introduction to the resource dimensions, reference may be made to the relevant contents in the above embodiments, which will not be repeated here.

[0235] After the network device confirms the control signaling sent by a single TRP or multiple TRPs, the network device can select resources as needed. Therefore, when the UE detects its own PDCCH during blind detection, it knows whether the control signaling is received using one target TCI state or multiple target TCI states based on the association between the resources occupied by the control signaling.

[0236] In this embodiment, the network device can determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is based on transmission based on a single TCI state or based on transmission based on multiple TCI states, and send indication information to the UE, and send control signaling to the UE on the PDCCH, as well as the association relationship between the resources occupied by the control signaling sent to the UE, wherein the type of occupied resources with an association relationship is a multiple TCI state transmission type, and the type of occupied resources without an association relationship is a single TCI state transmission type. Thus, the network device can send control signaling to the UE, as well as the association relationship between the resources occupied by the control signaling, so that the UE can determine whether to use one or more target TCI states when receiving the control signaling transmitted on the occupied resources based on the indication information and the association relationship, thereby ensuring that the UE can correctly receive and decode the control signaling, improve the decoding success rate of the control signaling, and can improve data transmission efficiency while taking into account resource rationality.

[0237] Corresponding to the transmission methods provided in the above-mentioned embodiments, the present application also provides a transmission device. Figure 1-Figure 7 The transmission method provided in the embodiment corresponds to the above, so the implementation of the transmission method is also applicable to the transmission device provided in this embodiment, and will not be described in detail in this embodiment. Fig.14 It is a schematic diagram of the structure of the transmission device proposed in this application.

[0238] Fig.14 A schematic diagram of the structure of a transmission device provided in an embodiment of the present application.

[0239] like Fig.14 As shown, the transmission device 100 includes: a first receiving module 110 and a second receiving module 120, wherein:

[0240] The first receiving module 110 is configured to receive indication information sent by a network device, wherein the indication information is used to indicate one or more target transmission configuration indication TCI states used by the UE to receive control signaling carried on a physical downlink control channel PDCCH;

[0241] The second receiving module 120 is configured to receive the control signaling according to the indication information.

[0242] Corresponding to the transmission methods provided in the above-mentioned embodiments, the present application also provides a transmission device. Figure 8-Figure 13 The transmission method provided in the embodiment corresponds to the above, so the implementation of the transmission method is also applicable to the transmission device provided in this embodiment, and will not be described in detail in this embodiment. Fig.15 It is a schematic diagram of the structure of the transmission device proposed in this application.

[0243] Fig.15 A schematic diagram of the structure of a transmission device provided in an embodiment of the present application.

[0244] like Fig.15 As shown, the transmission device 200 includes: a determination module 210, a first sending module 220, and a second sending module 230, wherein:

[0245] The determination module 210 is configured to determine a working mode adopted for sending control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states;

[0246] The first sending module 220 is configured to send indication information to the UE, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH;

[0247] The second sending module 230 is configured to send the control signaling to the UE on the PDCCH.

[0248] In the transmission device of the embodiment of the present application, the network device can determine the working mode adopted for sending the control signaling carried on the PDCCH, wherein the working mode is based on the transmission of a single TCI state or based on the transmission of multiple TCI states, and send indication information to the UE, wherein the indication information is used to indicate the one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH, and send the control signaling to the UE on the PDCCH. Thus, the network device can send indication information to the UE so that the UE can obtain the one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH indicated by the indication information, so that the UE can receive the control signaling using one or more TCI states according to the working mode adopted by the network device, thereby achieving the matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, improving the decoding success rate of the control signaling, and while taking into account the rationality of resources, it can also improve the data transmission efficiency.

[0249] According to an embodiment of the present application, the present application also provides a communication device and a readable storage medium.

[0250] like Fig.16, is a block diagram of a communication device according to an embodiment of the present application. The communication device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The communication device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0251] like Fig.16 As shown, the communication device includes: one or more processors 1100, a memory 1200, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the communication device, including instructions stored in or on the memory to display graphical information of a GUI on an external input / output device (such as a display device coupled to the interface). In other embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple communication devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Fig.16 A processor 1100 is taken as an example.

[0252] The memory 1200 is a non-transient computer-readable storage medium provided in the present application. The memory stores instructions executable by at least one processor to enable the at least one processor to perform the transmission method provided in the present application. The non-transient computer-readable storage medium of the present application stores computer instructions, which are used to enable a computer to perform the transmission method provided in the present application.

[0253] The memory 1200 is a non-transient computer-readable storage medium that can be used to store non-transient software programs, non-transient computer executable programs and modules, such as program instructions / modules corresponding to the transmission method in the embodiment of the present application (for example, the attached Fig.16 The processor 1100 executes various functional applications and data processing of the server by running the non-transient software programs, instructions and modules stored in the memory 1200, that is, the transmission method in the above method embodiment is implemented.

[0254] The memory 1200 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the positioning communication device, etc. In addition, the memory 1200 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. Optionally, the memory 1200 may optionally include a memory remotely arranged relative to the processor 1100, and these remote memories may be connected to the positioning communication device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0255] The communication device may further include: an input device 1300 and an output device 1400. The processor 1100, the memory 1200, the input device 1300 and the output device 1400 may be connected via a bus or other means. Fig.16 The example of connecting through bus is taken in the following.

[0256] The input device 1300 can receive input digital or character information, and generate key signal input related to user settings and function control of the positioning communication device, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator rod, one or more mouse buttons, a trackball, a joystick, and other input devices. The output device 1400 may include a display device, an auxiliary lighting device (e.g., an LED), and a tactile feedback device (e.g., a vibration motor). The display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display, and a plasma display. In some embodiments, the display device may be a touch screen.

[0257] Various implementations of the systems and techniques described herein can be realized in digital electronic circuit systems, integrated circuit systems, dedicated ASICs (application specific integrated circuits), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0258] These computer programs (also referred to as programs, software, software applications, or code) include machine instructions for programmable processors and can be implemented using high-level procedural and / or object-oriented programming languages, and / or assembly / machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or means (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0259] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0260] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0261] A computer system may include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

[0262] According to the transmission method of the embodiment of the present application, the indication information sent by the network device is received, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH, and based on the indication information, the control signaling carried on the PDCCH is received. In this embodiment, when the network device flexibly switches between a multi-TRP transmission mode and a single TRP transmission mode, the UE can receive the indication information of the network device, so that a single TCI state or multiple TCI states matching the TRP working mode used by the network device can be used to receive the corresponding control signaling, that is, according to the working mode adopted by the network device, one or more TCI states are used to receive the control signaling, thereby achieving matching of the working modes between the network device and the UE, ensuring that the UE can correctly receive and decode the control signaling, and improving the decoding success rate of the control signaling.

[0263] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution disclosed in this application can be achieved, and this document is not limited here.

Claims

1. A transmission method, It is characterized in that Applied to user equipment UE, the method includes: Receiving indication information sent by a network device, wherein the indication information is used to indicate one or more target transmission configuration indication TCI states used by the UE to receive control signaling carried on a physical downlink control channel PDCCH; receiving the control signaling according to the indication information; The receiving instruction information sent by the network device includes: Receive third configuration information sent by the network device for activating a connection relationship between association pairs in an association pair group, wherein the third configuration information is the indication information, the association pair includes a search space set and a control resource set associated with the search space set, the association pair group includes at least two association pairs, the association pair group in which the connection relationship is activated is a target association pair group, and the state identifier of the target TCI state is the state identifier of the TCI state corresponding to the control resource set included in the target association pair group.

2. The transmission method according to claim 1, It is characterized in that The receiving the control signaling according to the indication information includes: Determine, according to the indication information, a state identifier of the target TCI state; Determine a reference signal corresponding to the state identifier of the target TCI state, and use the beam corresponding to the reference signal to receive the control signaling.

3. The transmission method according to claim 1, It is characterized in that The receiving the third configuration information sent by the network device includes: Receive RRC signaling or MAC CE signaling or DCI signaling sent by the network device, wherein the RRC signaling or the MAC CE signaling or the DCI signaling carries group identification information of the association pair group for which the connection relationship needs to be activated, and the group identification information corresponds to the identifier of the search space set in the association pair included in the association pair group and the identifier of the control resource set associated with the search space set.

4. The transmission method according to claim 1, It is characterized in that The receiving the third configuration information sent by the network device includes: Receiving RRC signaling and / or MAC CE signaling sent by the network device, wherein the RRC signaling and / or MAC CE signaling carries group identification information of the association pair group, and the group identification information corresponds to an identifier of the search space set in the association pair included in the association pair group and an identifier of the control resource set associated with the search space set; The MAC CE signaling is also used to indicate the group identification information of the associated pair group that activates the connection relationship.

5. The transmission method according to claim 1, It is characterized in that The receiving the third configuration information sent by the network device further includes: Receiving RRC signaling and / or MAC CE signaling sent by the network device, wherein the RRC signaling and / or MAC CE signaling carries group identification information of the association pair group, and the group identification information corresponds to an identifier of the search space set in the association pair included in the association pair group and an identifier of the control resource set associated with the search space set; Receive DCI signaling sent by the network device, wherein the DCI signaling is used to indicate group identification information of the associated pair group that activates the connection relationship.

6. The transmission method according to claim 1, It is characterized in that Also includes: Receive information indicating the type of resources occupied by the control signaling sent by the network device, wherein the type of occupied resources is a single TCI state transmission type or a multiple TCI state transmission type.

7. The transmission method according to claim 1, It is characterized in that Also includes: Receive the association relationship between the resources occupied by the control signaling sent by the network device, determine the occupied resources with the association relationship as a multi-TCI state transmission type, and determine the occupied resources without the association relationship as a single TCI state transmission type.

8. The transmission method according to claim 7, It is characterized in that The granularity of the occupied resources is at least one of the following: Control resource sets; Search space set; Control part of the frequency domain resources of a resource set; PDCCH candidates; Control channel elements; Resource element bundle.

9. A transmission method, It is characterized in that Applied to a network device, the method comprises: Determine a working mode adopted for sending control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states; Sending indication information to the UE, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive control signaling carried on the PDCCH; Sending the control signaling to the UE on the PDCCH; The sending indication information to the UE includes: Send third configuration information for activating a connection relationship between association pairs in an association pair group to the UE, wherein the third configuration information is the indication information, the association pair includes a search space set and a control resource set associated with the search space set, the association pair group includes at least two association pairs, the association pair group in which the connection relationship is activated is the target association pair group, and the TCI state corresponding to the state identifier of the TCI state corresponding to the control resource set included in the target association pair group is the target TCI state.

10. The transmission method according to claim 9, It is characterized in that The sending, to the UE, third configuration information for activating a connection relationship between association pairs in the association pair group includes: Send RRC signaling or MAC CE signaling or DCI signaling to the UE, wherein the RRC signaling or the MAC CE signaling or the DCI signaling carries group identification information of the association pair group that activates the connection relationship, and the group identification information corresponds to the identifier of the search space set in the association pair included in the association pair group and the identifier of the control resource set associated with the search space set.

11. The transmission method according to claim 9, It is characterized in that The sending, to the UE, third configuration information for activating a connection relationship between association pairs in the association pair group includes: Sending RRC signaling and / or MAC CE signaling to the UE, wherein the RRC signaling and / or MAC CE signaling carries group identification information of the association pair group, and the group identification information corresponds to an identifier of the search space set in the association pair included in the association pair group and an identifier of the control resource set associated with the search space set; The MAC CE signaling is also used to indicate the group identification information of the associated pair group that activates the connection relationship.

12. The transmission method according to claim 9, It is characterized in that The sending, to the UE, third configuration information for activating a connection relationship between association pairs in the association pair group includes: Sending RRC signaling and / or MAC CE signaling to the UE, wherein the RRC signaling and / or MAC CE signaling carries group identification information of the association pair group, and the group identification information corresponds to an identifier of the search space set in the association pair included in the association pair group and an identifier of the control resource set associated with the search space set; Sending DCI signaling to the UE, wherein the DCI signaling is used to indicate group identification information of the associated pair group for activating the connection relationship.

13. The transmission method according to claim 9, It is characterized in that Also includes: Sending to the UE information indicating the type of resources occupied by the control signaling, wherein the type of the occupied resources is a single TCI state transmission type or a multiple TCI state transmission type.

14. The transmission method according to claim 9, It is characterized in that Also includes: An association relationship between the resources occupied by the control signaling is sent to the UE, wherein the type of the occupied resources with the association relationship is a multi-TCI state transmission type, and the type of the occupied resources without the association relationship is a single TCI state transmission type.

15. The transmission method according to claim 14, It is characterized in that The granularity of the occupied resources is at least one of the following: Control resource sets; Search space set; Control part of the frequency domain resources of a resource set; PDCCH candidates; Control channel elements; Resource element bundle.

16. A transmission device, It is characterized in that include: A first receiving module is configured to receive indication information sent by a network device, wherein the indication information is used to indicate one or more target transmission configuration indication TCI states used by the UE to receive control signaling carried on a physical downlink control channel PDCCH; A second receiving module is configured to receive the control signaling according to the indication information; The receiving instruction information sent by the network device includes: Receive third configuration information sent by the network device for activating a connection relationship between association pairs in an association pair group, wherein the third configuration information is the indication information, the association pair includes a search space set and a control resource set associated with the search space set, the association pair group includes at least two association pairs, the association pair group in which the connection relationship is activated is a target association pair group, and the state identifier of the target TCI state is the state identifier of the TCI state corresponding to the control resource set included in the target association pair group.

17. A transmission device, It is characterized in that include: A determination module is configured to determine a working mode adopted for sending control signaling carried on the PDCCH, wherein the working mode is transmission based on a single TCI state or transmission based on multiple TCI states; A first sending module is configured to send indication information to the UE, wherein the indication information is used to indicate one or more target TCI states used by the UE to receive the control signaling carried on the PDCCH; A second sending module is configured to send the control signaling to the UE on the PDCCH; The sending indication information to the UE includes: Send third configuration information for activating a connection relationship between association pairs in an association pair group to the UE, wherein the third configuration information is the indication information, the association pair includes a search space set and a control resource set associated with the search space set, the association pair group includes at least two association pairs, the association pair group in which the connection relationship is activated is the target association pair group, and the TCI state corresponding to the state identifier of the TCI state corresponding to the control resource set included in the target association pair group is the target TCI state.

18. A communication device, It is characterized in that include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 8 or 9 to 15.

19. A computer storage medium, It is characterized in that The computer storage medium stores computer executable instructions, and after the computer executable instructions are executed by the processor, the method described in any one of claims 1 to 8 or 9 to 15 can be implemented.

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