Information determination method and communication device

Abstract

The present application provides a signal determination method and a communication device. The method may include: a terminal device receives a downlink control information DCI signaling sent by an access network device, and the DCI signaling is used to indicate a first TCI state; the terminal device determines the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of the quasi-co-location type A reference signal QCLTypeA RS in multiple carriers. When the number of carriers is multiple, the QCLTypeA RS index in multiple carriers can be indicated by one TCI state.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information determination method and a communication device. Background Art

[0002] In the carrier aggregation scenario, the uplink and downlink channels in the carrier use the transmit beam indicated by the quasi co-location type D reference signal (Quasi Co-Location Type D Reference Signal, QCL Type D RS) in the transmission configuration indicator (Transmission configuration indicator, TCI) state to send data, and use the receive beam corresponding to the transmit beam to receive data. Each TCI state also includes a quasi co-location type A reference signal (Quasi Co-Location Type A Reference Signal, QCL Type A RS) index. QCL Type A RS is used to indicate the time-frequency offset information of the downlink channel in the carrier. The terminal device compensates for the time-frequency offset of the channel based on the time-frequency offset information to improve the reception reliability of the downlink channel. The TCI state only includes one QCL Type A RS index. When the number of carriers is multiple, the QCL Type A RS indexes in multiple carriers cannot be indicated by one TCI state. Summary of the invention

[0003] An embodiment of the present application provides an information determination method and a communication device, which can indicate the QCLTypeA RS index in multiple carriers through a TCI state.

[0004] In a first aspect, the present application provides an information determination method, the method comprising: a terminal device receives downlink control information DCI signaling sent by an access network device, the DCI signaling is used to indicate a first TCI state; the terminal device determines the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of the quasi-co-location type A reference signal QCLTypeA RS in multiple carriers. When the number of carriers is multiple, the QCLTypeA RS index in multiple carriers can be indicated by one TCI state.

[0005] In a possible implementation, the terminal device receives configuration information sent by the access network device, and the configuration information is used to configure the TCI state, the index of the QCLTypeA RS in multiple carriers, and the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers. Based on this optional implementation, the TCI state can be associated with the index of the QCLTypeA RS matching the carrier, which is conducive to ensuring the communication performance of the physical downlink channel.

[0006] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and one TCI state is associated with an index of one QCLTypeA RS in each carrier. It can be ensured that the index of at least one QCLTypeA RS in each carrier can be associated with one TCI state.

[0007] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier. It can be ensured that the index of at least one QCLTypeA RS in each carrier can be associated with at least one TCI state.

[0008] In a possible implementation, DCI signaling is used to indicate the identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically as follows: the association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers, and the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers, including: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the identifier of the first TCI based on the association relationship between TCI and the index of QCLTypeA RS in multiple carriers. Being able to directly determine the index of QCLTypeA RS associated with the first TCI state based on the first TCI state indicated by the DCI signaling is conducive to improving the efficiency of determining the index of QCLTypeA RS in multiple carriers.

[0009] In a possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers, and the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers, including: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the index of QCLTypeD RS in the first TCI state based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers. It can be achieved that the receiving beams corresponding to the determined indexes of QCLTypeA RS in multiple carriers are the same, which is conducive to ensuring the receiving performance of the physical downlink channel.

[0010] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling. The process of indicating the index of QCLTypeA RS in multiple carriers based on one TCI state can be simplified.

[0011] In the second aspect, the present application provides an information determination method, which includes: an access network device sends configuration information to a terminal device, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers; the access network device sends downlink control information DCI signaling to the terminal device, and the DCI signaling is used to indicate a first TCI state.

[0012] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0013] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier.

[0014] In a possible implementation, DCI signaling is used to indicate an identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: an association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers.

[0015] In one possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of QCLTypeA RS sent by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers.

[0016] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling.

[0017] The beneficial effects of the second aspect can refer to the beneficial effects of the first aspect mentioned above, and the repeated parts will not be repeated.

[0018] In a third aspect, the present application provides a communication device, which is used to implement a unit of the method in the above-mentioned first aspect or second aspect and any possible implementation manner thereof.

[0019] In a fourth aspect, the present application provides a communication device, comprising a processor, wherein the processor is used to execute the method in the first aspect or the second aspect and any possible implementation manner thereof.

[0020] In a fifth aspect, the present application provides a communication device, comprising a processor and a memory, wherein the memory is used to store computer execution instructions; the processor is used to call the program code from the memory to execute the method in the first aspect or the second aspect and any possible implementation thereof.

[0021] In a sixth aspect, the present application provides a communication device, comprising a processor and a transceiver, wherein the transceiver is used to receive a signal or send a signal; and the processor is used to execute the method in the first aspect or the second aspect and any possible implementation manner thereof.

[0022] In the seventh aspect, the present application provides a communication device, which includes a processor, a memory and a transceiver, wherein the transceiver is used to receive a signal or send a signal; the memory is used to store a program code; and the processor is used to call the program code from the memory to execute a method in the first aspect or the second aspect and any possible implementation thereof.

[0023] In the eighth aspect, the present application provides a chip, which is used to receive downlink control information DCI signaling sent by an access network device, and the DCI signaling is used to indicate a first TCI state; the chip is also used to determine the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of the quasi-co-site type A reference signal QCLTypeA RS in multiple carriers.

[0024] In the ninth aspect, the present application provides a chip, which is used to output configuration information, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers; the chip is also used to output downlink control information DCI signaling, and the DCI signaling is used to indicate a first TCI state.

[0025] In the tenth aspect, the present application provides a module device, which includes a communication module, a power module, a storage module and a chip module, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used to perform internal communication within the module device, or to communicate between the module device and an external device; the chip module is used to: receive downlink control information DCI signaling sent by an access network device, the DCI signaling is used to indicate a first TCI state; based on the association between the TCI state and the index of the quasi-co-site type A reference signal QCLTypeA RS in multiple carriers, determine the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state.

[0026] On the eleventh aspect, the present application provides a module device, characterized in that the module device includes a communication module, a power module, a storage module and a chip module, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used to perform internal communication within the module device, or for the module device to communicate with external devices; the chip module is used to: output configuration information, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers; the chip module is also used to output downlink control information DCI signaling, and the DCI signaling is used to indicate a first TCI state.

[0027] In the twelfth aspect, the present application provides a computer-readable storage medium, which stores computer-readable instructions. When the computer-readable instructions are executed on a communication device, the communication device executes the method in the above-mentioned first aspect or second aspect and any possible implementation manner thereof.

[0028] In a thirteenth aspect, the present application provides a computer program or a computer program product, comprising codes or instructions, which, when executed on a computer, enable the computer to execute the method of the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of a system architecture of a communication system provided in an embodiment of the present application;

[0030] Figure 2 It is a flowchart of an information determination method provided in an embodiment of the present application;

[0031] Figure 3 It is a flowchart of another information determination method provided in an embodiment of the present application;

[0032] Figure 4It is a flowchart of another information determination method provided in an embodiment of the present application;

[0033] Figure 5 It is a flowchart of another information determination method provided in an embodiment of the present application;

[0034] Figure 6 It is a flowchart of another information determination method provided in an embodiment of the present application;

[0035] Figure 7 It is a flowchart of another information determination method provided in an embodiment of the present application;

[0036] Figure 8 is a structural diagram of a communication device provided in an embodiment of the present application;

[0037] Fig. 9 is a structural diagram of another communication device provided in an embodiment of the present application;

[0038] Fig.10 is a structural diagram of another communication device provided in an embodiment of the present application;

[0039] Fig.11 It is a structural schematic diagram of a module device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The terms "first" and "second" and the like in the specification, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] In the present application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0043] In order to better understand the embodiments of the present application, the professional terms involved in the embodiments of the present application are introduced below:

[0044] (I) Transmission configuration indicator (TCI) status

[0045] The access network device indicates the downlink beam based on the transmission configuration indicator (TCI) state. That is, the access network device can indicate the receiving parameters of the physical downlink channel or the physical downlink signal through the TCI state. Among them, the physical downlink channel can be a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH). The physical downlink signal can be a channel status information reference signal (CSI-RS).

[0046] The TCI state includes the QCL type (two different QCL types can be configured) and the reference signal information of each QCL type. The reference signal information specifically includes the carrier component (CC) identification (ID) and / or bandwidth part (BWP) ID where the reference signal is located, and the number of each reference signal resource (such as SSB resource index or CSI-RS resource index). The configuration of the TCI state in the existing protocol is completed by radio resource control (RRC) signaling. RRC signaling describes the configuration signaling in the form of pseudo code abstract syntax notation (ASN.1). For example, a TCI state includes the following content:

[0047]

[0048]

[0049] Among them, the classification of QCL types can be shown as follows:

[0050] QCL typeA: indicates time delay, Doppler shift, delay spread, and Doppler spread, i.e., QCL typeA can be called time-frequency shift information;

[0051] QCL typeB: indicates Doppler shift and Doppler expansion;

[0052] QCL typeC: indicates time delay and Doppler shift;

[0053] QCL typeD: indicates the spatial reception parameters, that is, the receiving beam.

[0054] The TCI state of the physical downlink channel includes a reference signal (RS) field. When the value of the referenceSignal field in the TCI state is a non-zero power channel state information reference signal resource identifier (NZP-CSI-RS-ResourceId), it means that the network device instructs the terminal device to use the receiving parameters of the CSI-RS resource corresponding to the Id to receive the physical downlink channel. For example, when the reference signal QCLTypeARS of QCL typeA in the TCI state of PDSCH includes the identifier of CSI-RS resource 1 (such as the index or sequence number of the CSI-RS resource), the terminal device uses the time-frequency offset information of CSI-RS resource 1 to receive PDSCH. When the reference signal QCLTypeD RS of QCL typeD in the TCI state of PDSCH includes the identifier of CSI-RS resource 1 (such as the index or sequence number of the CSI-RS resource), the terminal device uses the receiving beam of CSI-RS resource 1 to receive PDSCH. Similarly, the terminal device determines the receiving parameters of the CSI-RS resource according to the TCI state of the CSI-RS resource.

[0055] (II) Unified TCI framework

[0056] A unified beam configuration framework is used to simultaneously indicate that the uplink and downlink control channels and data channels in one or more carriers use the same direction of transmit and receive beams. Under the unified beam configuration framework, the access network device first configures a TCI state pool (which can be called a TCI state list) containing multiple TCI states through Radio Resource Control (RRC) signaling, and each TCI state includes a Quasi Co-Location Type D Reference Signal (QCL Type D RS) index to indicate the transmit beam information; then the access network device activates one or more TCI states in the TCI state pool through medium access control-control element (MAC CE) signaling; finally, the access network device indicates one of the activated TCI states through downlink control information (DCI) signaling. After the DCI signaling takes effect, the corresponding uplink and downlink channels in multiple carriers use the transmit beam indicated by the TCI state indicated by the DCI signaling to send data. The terminal device or access network device uses the corresponding receive beam for reception according to the indicated transmit beam.

[0057] For downlink channel reception, not only is the QCLTypeD RS index required to indicate a transmit beam, but it is also necessary to indicate the time-frequency offset information of the channel, so that the terminal equipment can compensate for the time-frequency offset of the channel and improve the reliability of channel reception. The TCI state also includes a Quasi Co-Location TypeA Reference Signal (QCLTypeA RS) index, which is used to indicate the time-frequency offset information of the downlink channel in the carrier. The QCLTypeA RS index is associated with a cell identifier, which is used to indicate that the QCLTypeA RS sends data in the corresponding cell. In the current protocol, the TCI state only includes one QCLTypeA RS index. When the number of carriers is multiple, the QCLTypeA RS indexes in multiple carriers cannot be indicated by one TCI state.

[0058] In order to solve the above technical problems, the embodiments of the present application provide an information determination method and a communication device, which can indicate the QCLTypeA RS index in multiple carriers through a TCI state. In order to better understand the embodiments of the present application, the system architecture of the embodiments of the present application is first described below:

[0059] The method provided in the present application can be applied to various communication systems, for example, it can be an Internet of Things (IoT) system, a narrowband Internet of Things (NB-IoT) system, a long term evolution (LTE) system, a fifth generation (5G) communication system, a hybrid architecture of LTE and 5G, a 5G new radio (NR) system, and new communication systems that will emerge in future communication developments. As long as the communication system needs to determine the receiving parameters of the physical downlink channel, the method provided in the embodiment of the present application can be used.

[0060] Figure 1 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application, and the solution in the present application can be applied to the communication system. The communication system may include at least one access network device and at least one terminal device. Figure 1 Take the communication system including an access network device and a terminal device as an example. Figure 1As shown, the access network device 101 and the terminal device 102 can communicate through the beam. The terminal device 102 receives the downlink control information DCI signaling sent by the access network device 101, and the DCI signaling is used to indicate the first TCI state; the terminal device 102 determines the index of the QCLTypeA RS in the multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of the QCLTypeA RS in the multiple carriers.

[0061] The access network device involved in the embodiments of the present application is an entity for transmitting or receiving signals on the network side, which can be used to convert received air frames to network protocol (Internet protocol, IP) packets, as a router between the terminal device and the rest of the access network, wherein the rest of the access network may include IP networks, etc. The access network device can also coordinate the attribute management of the air interface. For example, the access network device can be an evolutionary Node B (eNB or e-NodeB) in LTE, or a new radio controller (NR controller), a gNode B (gNB) in a 5G system, a centralized unit, a new wireless base station, a radio frequency remote module, a micro base station, a relay, a distributed unit, a transmission reception point (TRP) or a transmission point (TP) or any other wireless access device, but the embodiments of the present application are not limited thereto.

[0062] The terminal device involved in the embodiments of the present application is an entity on the user side for receiving or transmitting signals. The terminal device may be a device that provides voice and / or data connectivity to a user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device may also be other processing devices connected to a wireless modem. The terminal device may communicate with a radio access network (RAN). The terminal device may also be referred to as a wireless terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE), etc. The terminal device may be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and / or data with a wireless access network. For example, the terminal device may also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. Common terminal devices include, for example, mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, etc., but the embodiments of the present application are not limited thereto.

[0063] The following is a further detailed description of the information determination method provided in the embodiment of the present application:

[0064] See also Figure 2 , Figure 2 is a flow chart of an information determination method provided in an embodiment of the present application. Figure 2 As shown, the beam indication method includes the following operations S201 to S202. Figure 2The subjects of executing the method shown may be the access network device and the terminal device, or the subjects may be the chip in the access network device and the chip in the terminal device. Figure 2 The access network device and the terminal device are used as the execution subjects of the method for explanation. The execution subjects of the beam indication method shown in other figures of the embodiment of the present application are similar, and will not be repeated in the following text. Among them:

[0065] S201, the terminal device receives downlink control information DCI signaling sent by the access network device, and the DCI signaling is used to indicate the first TCI state.

[0066] The access network device sends a downlink control information DCI signaling to the terminal device, and the DCI signaling is used to instruct the terminal device to determine a TCI state from multiple activated TCI states as the first TCI state. Figure 3 to Figure 6 As shown, the DCI signaling indicates TCI state 3 as the first TCI state.

[0067] It should be noted that the activated TCI state may be indicated by the configuration information of the TCI state sent by the access network device to the terminal device before step 201. The configuration information may be RRC signaling sent by the access network device to the terminal device, such as Figure 3 , Figure 4 and Figure 5 Optionally, the configuration information may be a MAC CE signaling sent by the access network device to the terminal device, such as Figure 6 Optionally, the configuration information may also be sent jointly by the access network device to the terminal device via RRC signaling and MAC CE signaling.

[0068] Correspondingly, after the terminal device receives the configuration information sent by the access network device, it determines the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers based on the configuration information, and activates one or more TCI states.

[0069] The following describes how the terminal device determines the TCI state, the index of the QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of the QCLTypeA RS in multiple carriers based on the configuration information, and activates one or more TCI states:

[0070] The access network device can configure multiple TCI states for the terminal device based on the link type. The multiple TCI states configured based on the uplink and the multiple TCI states configured based on the downlink can be the same or different. Figure 3 to Figure 6 As shown, the terminal device determines three TCI states based on the configuration information, namely TCI state 1, TCI state 2, and TCI state 3.

[0071] The access network device can configure the index of candidate QCLTypeA RS in multiple carriers based on RS type. For the convenience of description, in the embodiment of the present application, the index of candidate QCLTypeA RS in the carrier can also be referred to as RS. RS types may include but are not limited to the following: Synchronous signal Block (SS block), periodic channel state information reference signal (CSI reference signals, CSI-RS), non-periodic CSI-RS, semi-persistent CSI-RS, Tracking Reference Signal (TRS), etc. Figure 3 As shown, the access network device configures three candidate QCLTypeA RSs for carrier 1, namely RS1, RS2 and RS3; the access network device configures three candidate QCLTypeA RSs for carrier 2, namely RS4, RS5 and RS6. Among them, RS1-RS6 can be the several RS types listed above.

[0072] Based on the configuration information, the terminal device determines the association between the TCI state and the index of QCLTypeA RS in multiple carriers.

[0073] In a possible implementation, the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: each carrier in the multiple carriers includes at least one QCLTypeA RS index, and a TCI state is associated with an index of a QCLTypeA RS in each carrier. Specifically, a TCI state identifier may be associated with an index of a QCLTypeA RS in each carrier. Figure 3 As shown, the access network device configures TCI state 1 to associate RS1 in carrier 1 with RS4 in carrier 2; TCI state 2 to associate RS2 in carrier 1 with RS5 in carrier 2; and TCI state 3 to associate RS3 in carrier 1 with RS6 in carrier 2. Figure 6 As shown, the access network device configures TCI state 1 to associate RS1 in carrier 1 with RS4 in carrier 2; TCI state 2 to associate RS2 in carrier 1 with RS5 in carrier 2.

[0074] Optionally, the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: each carrier in the multiple carriers includes the index of at least one QCLTypeA RS, and the multiple TCI states are associated with the index of a QCLTypeA RS in each carrier. Specifically, the identifiers of multiple TCI states may be associated with the index of a QCLTypeA RS in each carrier. Figure 5As shown, the access network device configures TCI state 1, TCI state 2 and TCI state 3 to associate RS1 in carrier 1 with RS4 in carrier 2.

[0075] In one possible implementation, the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers. When configuring multiple candidate QCLTypeA RSs of a carrier, each candidate QCLTypeA RS is configured with a second TCI state, and the second TCI state includes a QCLTypeD RS corresponding to the transmission beam used to indicate the candidate QCLTypeA RS. The terminal device associates the TCI state having the same QCLTypeD RS as the second TCI state with the QCLTypeA RS configured with the second TCI state.

[0076] Specifically, the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-location type D reference signal QCLTypeDRS in the reference TCI state in multiple carriers can be: a TCI state is associated with a candidate QCLTypeA RS transmitted by the transmission beam corresponding to the QCLTypeD RS in a reference TCI state in each carrier. Figure 4 As shown, the transmission beam indicated by the QCLTypeD RS in TCI state 1 is beam 1, the transmission beam indicated by the QCLTypeD RS in TCI state 2 is beam 2, and the transmission beam indicated by the QCLTypeD RS in TCI state 3 is beam 3. Beam 1 is associated with RS1 in carrier 1 and RS4 in carrier 2; beam 2 is associated with RS2 in carrier 1 and RS5 in carrier 2; beam 3 is associated with RS3 in carrier 1 and RS6 in carrier 2.

[0077] Optionally, the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-location type D reference signal QCLTypeDRS in the reference TCI state in multiple carriers can also be: multiple TCI states are associated with the candidate QCLTypeA RS transmitted by the transmission beam corresponding to the QCLTypeD RS in a reference TCI state in each carrier. Figure 7As shown, the transmission beam indicated by the QCLTypeD RS in TCI state 1 is beam 1, the transmission beam indicated by the QCLTypeDRS in TCI state 2 is beam 2, and the transmission beam indicated by the QCLTypeD RS in TCI state 3 is beam 3. The access network device configures beam 1, beam 2, and beam 3 to associate RS1 in carrier 1 and RS4 in carrier 2.

[0078] After the access network device sends configuration information to the terminal device through RRC signaling, the access network device can send MAC CE signaling to the terminal device to instruct the terminal device to activate one or more TCI states. Figure 3 As shown, after the access network device sends configuration information to the terminal device through RRC signaling, the access network device sends MAC CE signaling to the terminal device to instruct the terminal device to activate TCI state 1 and TCI state 3.

[0079] Optionally, the access network device sends configuration information to the terminal device through MAC CE signaling and indicates activation of one or more TCI states through MAC CE signaling. Figure 6 As shown, the MAC CE signaling indicates the configuration information and activates TCI state 1 and TCI state 3.

[0080] S202, the terminal device determines the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of the quasi-co-site type A reference signal QCLTypeA RS in multiple carriers.

[0081] In a possible implementation, when DCI signaling is used to indicate the identifier of the first TCI state, the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers can be specifically: the association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers. At this time, the terminal device determines the index of the QCLTypeA RS in multiple carriers corresponding to the identifier of the first TCI based on the association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers. Figure 3 As shown, when the DCI signaling indicates the TCI state 3 identifier, the terminal device determines RS3 and RS6 associated with the TCI state 3 identifier as the index of the QCLTypeA RS of carrier 1 and the index of the QCLTypeA RS of carrier 2, respectively, based on the association relationship between the TCI state 1 identifier to the TCI state 3 identifier and RS1 to RS3 of carrier 1 and RS4 to RS6 of carrier 2. Figure 6As shown, when the DCI signaling indicates the TCI state 3 identifier, the terminal device determines RS2 and RS5 associated with the TCI state 3 identifier as the index of QCLTypeA RS of carrier 1 and the index of QCLTypeA RS of carrier 2, respectively, based on the association relationship between the TCI state 1 identifier, the TCI state 3 identifier and RS1~RS2 of carrier 1 and RS4~RS5 of carrier 2.

[0082] In one possible implementation, the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is: the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers. At this time, if the QCLTypeD RS corresponding to the transmission beam used by the candidate QCLTypeA RS is the same as the QCLTypeD RS in the first TCI state, then the candidate QCLTypeA RS is determined to be the index of the QCLTypeA RS associated with the first TCI state in the carrier. Figure 4 As shown, the DCI signaling indicates that the first TCI state is TCI state 3, and the QCLTypeD RS in TCI state 3 corresponds to beam 3. The transmission beams used by RS1~RS3 in carrier 1 are beam 1, beam 2, and beam 3, respectively, and the transmission beams used by RS4~RS6 in carrier 2 are beam 1, beam 2, and beam 3, respectively. The QCLTypeD RS corresponding to beam 3 used by RS3 and RS6 is the same as the QCLTypeD RS in TCI state 3. RS3 and RS6 are determined to be the indexes of the QCLTypeA RS associated with TCI state 3 in carrier 1 and the indexes of the QCLTypeA RS associated with TCI state 3 in carrier 2, respectively. Similarly, determine Figure 7 RS3 and RS6 are the indexes of the QCLTypeA RS associated with TCI state 3 in carrier 1 and the indexes of the QCLTypeA RS associated with TCI state 3 in carrier 2, respectively.

[0083] In an embodiment of the present application, the configuration information sent by the access network device is received by the terminal device, and the TCI state, the index of the QCLTypeA RS in multiple carriers, and the association relationship between the TCI state and the index of the QCLTypeARS in multiple carriers are determined according to the configuration information. The terminal device receives the downlink control information DCI signaling sent by the access network device to indicate the first TCI state; based on the association relationship between the TCI state and the index of the quasi-co-site type A reference signal QCLTypeA RS in multiple carriers, the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state is determined. The QCLTypeA RS index in multiple carriers can be indicated by one TCI state.

[0084] Figure 8 The communication device 800 shown can be used to perform the above Figure 2-Figure 7 The communication device 800 may also be a chip system. Figure 8 The communication device 800 shown may include a processing unit 801 and a communication unit 802. The detailed description of each unit is as follows:

[0085] A communication unit 802 is used for a terminal device to receive downlink control information DCI signaling sent by an access network device, where the DCI signaling is used to indicate a first TCI state;

[0086] Processing unit 801 is used for the terminal device to determine the index of QCLTypeA RS in multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the index of the quasi-co-site type A reference signal QCLTypeA RS in multiple carriers.

[0087] In one possible implementation, the communication unit 802 is also used for the terminal device to receive configuration information sent by the access network device, and the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers.

[0088] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0089] In a possible implementation, each of the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier. It can be ensured that the index of the QCLTypeARS in each carrier is associated with at least one TCI state.

[0090] In one possible implementation, DCI signaling is used to indicate the identifier of a first TCI state, and the association relationship between the TCI state and the indexes of QCLTypeA RS in multiple carriers is specifically as follows: the association relationship between the TCI state identifier and the QCLTypeA RS in multiple carriers, and the terminal device is based on the association relationship between the TCI state and the indexes of QCLTypeA RS in multiple carriers. The processing unit 801 is also used for: the terminal device determines the indexes of QCLTypeA RS in multiple carriers corresponding to the identifier of the first TCI based on the association relationship between TCI and the indexes of QCLTypeA RS in multiple carriers.

[0091] In a possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers, and the processing unit 801 is also used for: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the index of QCLTypeD RS in the first TCI state based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers. It can be achieved that the receiving beams corresponding to the determined indexes of QCLTypeA RS in multiple carriers are the same, which is conducive to ensuring the receiving performance of the physical downlink channel.

[0092] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling. The process of indicating the index of QCLTypeA RS in multiple carriers based on one TCI state can be simplified.

[0093] Figure 8 The communication device 800 shown can be used to perform the above Figure 2-Figure 7 The described method embodiment accesses part or all of the functions of the network device. The detailed description of each unit is as follows:

[0094] Communication unit 802 is used for the access network device to send configuration information to the terminal device, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers; the access network device sends downlink control information DCI signaling to the terminal device, and the DCI signaling is used to indicate the first TCI state.

[0095] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0096] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier.

[0097] In a possible implementation, DCI signaling is used to indicate an identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: an association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers.

[0098] In one possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of QCLTypeA RS sent by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers.

[0099] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling.

[0100] The above-mentioned communication device can be, for example, a chip or a chip module. Regarding the various modules / units contained in the various devices and products described in the above embodiments, they can be software modules / units, or hardware modules / units, or they can be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / units can be implemented in the form of software programs. The software programs run on a processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0101] Based on the description of the above method embodiment and device embodiment, the present application embodiment further provides a communication device 900. Fig. 9 The communication device at least includes a communication interface 901, a processor 902 and a memory 903. The communication interface 901, the processor 902 and the memory 903 may be connected via a bus 904 or other means. Fig. 9 The connections between other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0102] The memory 903 may include a read-only memory and a random access memory, and provides instructions and data to the processor 902. A part of the memory 903 may also include a nonvolatile random access memory.

[0103] The processor 902 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, and optionally, the processor 902 may also be any conventional processor, etc. Among them:

[0104] The memory 903 is used to store program instructions.

[0105] Processor 902, used to call the program instructions stored in the memory 903 to implement the data processing function of the above-mentioned terminal device or access network device in this application;

[0106] The communication interface 901 is called to implement the sending and receiving operations of the above-mentioned terminal device or access network device in this application.

[0107] In an embodiment of the present application, the communication interface may be a transceiver, circuit, bus, module or other type of communication interface, which is used to communicate with other devices through a transmission medium. For example, the communication interface 901 is used in the communication device 900 so that the communication device 900 can communicate with other devices. The processor 902 uses the communication interface 901 to send and receive data, and is used to implement the method of the above method embodiment. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The specific connection medium between the above-mentioned communication interface 901, processor 902 and memory 903 is not limited in the embodiment of the present application.

[0108] Embodiments of the present invention and Figure 2-Figure 7 The method embodiments shown are based on the same concept and have the same technical effects. For specific principles, please refer to Figure 2-Figure 7 The description of the illustrated embodiment is not repeated here.

[0109] As an example, Fig.10 The present invention provides another structural diagram of a communication device 1000 provided in an embodiment of the present application. The communication device 1000 may be a server. The communication device 1000 may perform the operations performed by the server in the above method embodiment.

[0110] For ease of explanation, Fig.10 Only the main components of the communication device 1000 are shown. Fig.10 As shown, the communication device 1000 includes a processor, a memory, a radio frequency circuit, an antenna, and an input / output device. The processor is mainly used to process the communication protocol and communication data, and to control the entire communication device 1000, execute software programs, and process the data of the software programs, for example, to support the communication device 1000 to execute Figure 2-Figure 7 The process described. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. The communication device 1000 may also include input and output devices, such as a touch screen, a display screen, a keyboard, etc., which are mainly used to receive data input by a user and output data to the user. It should be noted that some types of communication devices 1000 may not have input and output devices.

[0111] When the communication device 1000 is turned on, the processor can read the software program in the storage unit, interpret and execute the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device 1000, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0112] Those skilled in the art will appreciate that for ease of description, Fig.10 Only one memory and processor are shown. In the actual communication device 1000, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiments of the present application.

[0113] As an optional implementation, the processor may include a baseband processor and a central processing unit (CPU), wherein the baseband processor is mainly used to process the communication protocol and communication data, and the CPU is mainly used to control the entire communication device 1000, execute the software program, and process the data of the software program. Optionally, the processor may also be a network processor (NP) or a combination of a CPU and an NP. The processor may further include a hardware chip. The above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof. The memory may include volatile memory, such as random-access memory (RAM); the memory may also include non-volatile memory, such as flash memory, hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.

[0114] For example, in the embodiments of the present application, Fig.10 As shown, the antenna and the radio frequency circuit having transceiver functions may be regarded as the communication unit 1001 of the communication device 1000 , and the processor having a processing function may be regarded as the processing unit 1002 of the communication device 1000 .

[0115] The communication unit 1001 may also be referred to as a transceiver, a transceiver, a transceiver device, a transceiver unit, etc., and is used to implement the transceiver function. Optionally, the device used to implement the receiving function in the communication unit 1001 may be regarded as a receiving unit, and the device used to implement the sending function in the communication unit 1001 may be regarded as a sending unit, that is, the communication unit 1001 includes a receiving unit and a sending unit. Exemplarily, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0116] In some embodiments, the communication unit 1001 and the processing unit 1002 may be integrated into one device, or separated into different devices. In addition, the processor and the memory may also be integrated into one device, or separated into different devices.

[0117] The communication unit 1001 may be used to perform the sending and receiving operations of the communication device 1000 in the above method embodiment. The processing unit 1002 may be used to perform the data processing operations of the communication device 1000 in the above method embodiment.

[0118] The embodiment of the present application also provides a chip, which can execute the relevant steps of the terminal device in the aforementioned method embodiment. The chip is used to receive downlink control information DCI signaling sent by the access network device, and the DCI signaling is used to indicate a first TCI state; based on the association relationship between the TCI state and the index of the quasi-co-location type A reference signal QCLTypeA RS in multiple carriers, determine the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state.

[0119] In one possible implementation, the chip is also used for: the terminal device receives configuration information sent by the access network device, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers.

[0120] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0121] In a possible implementation, each of the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier. It can be ensured that the index of the QCLTypeARS in each carrier is associated with at least one TCI state.

[0122] In one possible implementation, DCI signaling is used to indicate the identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state identifier and the QCLTypeA RS in multiple carriers, and the terminal device is based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers. The chip is also used for: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the identifier of the first TCI based on the association relationship between TCI and the index of QCLTypeA RS in multiple carriers.

[0123] In a possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers. The chip is also used for: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the index of QCLTypeD RS in the first TCI state based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers. It can be achieved that the receiving beams corresponding to the determined indexes of QCLTypeA RS in multiple carriers are the same, which is conducive to ensuring the receiving performance of the physical downlink channel.

[0124] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling. The process of indicating the index of QCLTypeA RS in multiple carriers based on one TCI state can be simplified.

[0125] The embodiment of the present application also provides a chip, which can execute the relevant steps of the access network device in the aforementioned method embodiment. The chip is used to output configuration information, the configuration information is used to configure the TCI state, the index of the QCLTypeA RS in multiple carriers, and the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers; output downlink control information DCI signaling, the DCI signaling is used to indicate the first TCI state.

[0126] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0127] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier.

[0128] In a possible implementation, DCI signaling is used to indicate an identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: an association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers.

[0129] In one possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of QCLTypeA RS sent by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers.

[0130] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling.

[0131] For each device or product applied to or integrated in the chip, each module contained therein can be implemented in the form of hardware such as circuits, or at least some of the modules can be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules can be implemented in the form of hardware such as circuits.

[0132] like Fig.11 As shown, Fig.11 11 is a schematic diagram of a module device provided in an embodiment of the present application. The module device 1100 can execute the relevant steps of the terminal device in the aforementioned method embodiment, and the module device 1100 includes: a communication module 1101, a power module 1102, a storage module 1103 and a chip module 1104.

[0133] Among them, the power supply module 1102 is used to provide power to the module device; the storage module 1103 is used to store data and instructions; the communication module 1101 is used for internal communication of the module device, or for the module device to communicate with external devices; the chip module 1104 is used to: receive downlink control information DCI signaling sent by the access network device, the DCI signaling is used to indicate a first TCI state; based on the association between the TCI state and the index of the quasi-co-site type A reference signal QCLTypeA RS in multiple carriers, determine the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state.

[0134] In one possible implementation, the chip module 1104 is also used for: the terminal device receives configuration information sent by the access network device, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers.

[0135] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0136] In a possible implementation, each of the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier. It can be ensured that the index of the QCLTypeARS in each carrier is associated with at least one TCI state.

[0137] In one possible implementation, DCI signaling is used to indicate the identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state identifier and the QCLTypeA RS in multiple carriers, and the terminal device is based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers. The chip module 1104 is also used for: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the identifier of the first TCI based on the association relationship between TCI and the index of QCLTypeA RS in multiple carriers.

[0138] In a possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the QCLTypeA RS transmitted by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers. The chip module 1104 is also used for: the terminal device determines the index of QCLTypeA RS in multiple carriers corresponding to the index of QCLTypeD RS in the first TCI state based on the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers. It can be achieved that the receiving beams corresponding to the determined indexes of QCLTypeA RS in multiple carriers are the same, which is conducive to ensuring the receiving performance of the physical downlink channel.

[0139] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling. The process of indicating the index of QCLTypeA RS in multiple carriers based on one TCI state can be simplified.

[0140] like Fig.11 As shown, Fig.11 11 is a schematic diagram of a module device provided in an embodiment of the present application. The module device 1100 can execute the relevant steps of the access network device in the aforementioned method embodiment, and the module device 1100 includes: a communication module 1101, a power module 1102, a storage module 1103 and a chip module 1104.

[0141] Among them, the power supply module 1102 is used to provide power to the module device; the storage module 1103 is used to store data and instructions; the communication module 1101 is used for internal communication of the module device, or for the module device to communicate with external devices; the chip module 1104 is used to: output configuration information, the configuration information is used to configure the TCI state, the index of QCLTypeA RS in multiple carriers, and the association between the TCI state and the index of QCLTypeA RS in multiple carriers; output downlink control information DCI signaling, the DCI signaling is used to indicate the first TCI state.

[0142] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and a TCI state is associated with an index of a QCLTypeA RS in each carrier.

[0143] In a possible implementation, each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and multiple TCI states are associated with an index of a QCLTypeA RS in each carrier.

[0144] In a possible implementation, DCI signaling is used to indicate an identifier of a first TCI state, and the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: an association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers.

[0145] In one possible implementation, the association relationship between the TCI state and the index of QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of QCLTypeA RS sent by the transmission beam corresponding to the quasi-co-site type D reference signal QCLTypeD RS in the reference TCI state in multiple carriers.

[0146] In a possible implementation, the configuration information is RRC signaling and / or MAC CE signaling.

[0147] For each device or product applied to or integrated in the chip module, each module contained therein can be implemented by hardware such as circuits, and different modules can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components. Alternatively, at least some of the modules can be implemented by software programs that run on a processor integrated inside the chip module, and the remaining (if any) modules can be implemented by hardware such as circuits.

[0148] An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.

[0149] The embodiment of the present application also provides a computer program product. When the computer program product runs on a processor, the method flow of the above method embodiment is implemented.

[0150] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain operations can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0151] The descriptions of the various embodiments provided in this application can refer to each other, and the descriptions of the various embodiments have different focuses. For parts that are not described in detail in a certain embodiment, refer to the relevant descriptions of other embodiments. For the convenience and simplicity of description, for example, the functions of the various devices and equipment provided in the embodiments of this application and the operations performed can refer to the relevant descriptions of the method embodiments of this application, and the various method embodiments and the various device embodiments can also refer to, combine or quote each other.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for determining information, characterized in that: The method comprises: The terminal device receives downlink control information DCI signaling sent by the access network device, where the DCI signaling is used to indicate a first TCI state; The terminal device determines, based on an association relationship between the TCI state and the indexes of the quasi co-location type A reference signals QCLTypeA RS in the multiple carriers corresponding to the first TCI state; The association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of the QCLTypeA RS transmitted by the transmit beam corresponding to the quasi co-location type D reference signal QCLTypeD RS in the TCI state in multiple carriers; The terminal device determines, based on an association relationship between a TCI state and an index of a QCLTypeA RS in a plurality of carriers, an index of a QCLTypeA RS in a plurality of carriers corresponding to the first TCI state, including: The terminal device determines the index of the QCLTypeA RS in multiple carriers corresponding to the index of the QCLTypeD RS in the first TCI state based on the association between the TCI state and the index of the QCLTypeA RS in multiple carriers.

2. The method according to claim 1, characterized in that The method further comprises: The terminal device receives configuration information sent by the access network device, where the configuration information is used to configure the TCI state, the index of the QCLTypeA RS in the multiple carriers, and the association between the TCI state and the index of the QCLTypeA RS in the multiple carriers.

3. The method according to claim 1, characterized in that Each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and one TCI state is associated with an index of one QCLTypeA RS in each carrier.

4. The method according to claim 1, characterized in that: Each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and the multiple TCI states are associated with an index of the QCLTypeA RS in each carrier.

5. The method according to any one of claims 1 to 4, characterized in that The DCI signaling is used to indicate an identifier of a first TCI state, and the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: an association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers, The terminal device determines, based on an association relationship between a TCI state and an index of a QCLTypeA RS in a plurality of carriers, an index of a QCLTypeA RS in a plurality of carriers corresponding to the first TCI state, including: The terminal device determines the indexes of the QCLTypeA RS in multiple carriers corresponding to the identifier of the first TCI based on the association between the TCI and the indexes of the QCLTypeA RS in multiple carriers.

6. The method according to claim 2, characterized in that The configuration information is RRC signaling and / or MAC CE signaling.

7. A method for determining information, characterized in that: The method comprises: The access network device sends configuration information to the terminal device, where the configuration information is used to configure the TCI state, the index of the QCLTypeA RS in the multiple carriers, and the association relationship between the TCI state and the index of the QCLTypeA RS in the multiple carriers; The access network device sends downlink control information DCI signaling to the terminal device, where the DCI signaling is used to indicate a first TCI state; The association relationship between the TCI state and the index of the QCLTypeA RS in the multiple carriers is specifically: the association relationship between the TCI state and the index of the QCLTypeA RS transmitted by the transmit beam corresponding to the quasi co-location type D reference signal QCLTypeD RS in the TCI state in the multiple carriers; The terminal device determines the index of the QCLTypeA RS in multiple carriers corresponding to the index of the QCLTypeD RS in the first TCI state based on the association between the TCI state and the index of the QCLTypeA RS in multiple carriers.

8. The method according to claim 7, characterized in that Each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and one TCI state is associated with an index of one QCLTypeA RS in each carrier.

9. The method according to claim 7, characterized in that: Each carrier in the multiple carriers includes an index of at least one QCLTypeA RS, and the multiple TCI states are associated with an index of the QCLTypeA RS in each carrier.

10. The method according to any one of claims 7 to 9, characterized in that: The DCI signaling is used to indicate the identifier of the first TCI state, and the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: the association relationship between the identifier of the TCI state and the QCLTypeA RS in multiple carriers.

11. The method according to claim 7, characterized in that The configuration information is RRC signaling and / or MAC CE signaling.

12. A communication device, characterized in that: The method comprises a unit for executing the method according to any one of claims 1 to 6, or comprises a unit for executing the method according to any one of claims 7 to 11.

13. A communication device, characterized in that: Includes processor and transceiver; The transceiver is used to receive or send signals; The processor is used to execute the method according to any one of claims 1 to 6, or to execute the method according to any one of claims 7 to 11.

14. The communication device according to claim 13, characterized in that: The communication device also includes a memory: The memory is used to store computer programs; The processor is specifically configured to call the computer program from the memory to execute the method according to any one of claims 1 to 6, or to execute the method according to any one of claims 7 to 11.

15. A chip, characterized in that: The chip is used to receive downlink control information DCI signaling sent by an access network device, where the DCI signaling is used to indicate a first TCI state; The chip is further configured to determine the indexes of the QCLTypeA RS in the multiple carriers corresponding to the first TCI state based on the association relationship between the TCI state and the indexes of the quasi co-location type A reference signals QCLTypeA RS in the multiple carriers; The association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of the QCLTypeA RS transmitted by the transmit beam corresponding to the quasi co-location type D reference signal QCLTypeD RS in the TCI state in multiple carriers; The determining, based on an association relationship between a TCI state and an index of a QCLTypeA RS in a plurality of carriers, the index of the QCLTypeA RS in a plurality of carriers corresponding to the first TCI state includes: Based on the association between the TCI state and the indexes of QCLTypeA RS in multiple carriers, determine the indexes of QCLTypeA RS in multiple carriers corresponding to the index of QCLTypeD RS in the first TCI state.

16. A module device, characterized in that: The module device includes a communication module, a power module, a storage module and a chip module, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication of the module device, or for communication between the module device and an external device; The chip module is used for: receiving downlink control information DCI signaling sent by an access network device, where the DCI signaling is used to indicate a first TCI state; Based on the association relationship between the TCI state and the index of the quasi-co-location type A reference signal QCLTypeA RS in multiple carriers, determine the index of the QCLTypeA RS in multiple carriers corresponding to the first TCI state; the association relationship between the TCI state and the index of the QCLTypeA RS in multiple carriers is specifically: the association relationship between the TCI state and the index of the QCLTypeA RS transmitted by the transmit beam corresponding to the quasi-co-location type D reference signal QCLTypeD RS in the TCI state in multiple carriers; The determining, based on an association relationship between a TCI state and an index of a QCLTypeA RS in a plurality of carriers, the index of the QCLTypeA RS in a plurality of carriers corresponding to the first TCI state includes: Based on the association between the TCI state and the indexes of QCLTypeA RS in multiple carriers, determine the indexes of QCLTypeA RS in multiple carriers corresponding to the index of QCLTypeD RS in the first TCI state.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program, and the computer program enables a computer to execute the method described in any one of claims 1 to 6, or execute the method described in any one of claims 7 to 11.

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