WO2022120855A1 - 确定参考信号序列的方法及装置 - Google Patents

确定参考信号序列的方法及装置 Download PDF

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Publication number
WO2022120855A1
WO2022120855A1 PCT/CN2020/135960 CN2020135960W WO2022120855A1 WO 2022120855 A1 WO2022120855 A1 WO 2022120855A1 CN 2020135960 W CN2020135960 W CN 2020135960W WO 2022120855 A1 WO2022120855 A1 WO 2022120855A1
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WIPO (PCT)
Prior art keywords
information
reference signal
ssb
indication information
tci state
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PCT/CN2020/135960
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English (en)
French (fr)
Inventor
纪刘榴
金黄平
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华为技术有限公司
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Priority to PCT/CN2020/135960 priority Critical patent/WO2022120855A1/zh
Publication of WO2022120855A1 publication Critical patent/WO2022120855A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and apparatus for determining a reference signal sequence.
  • massive multiple input multiple output (massive multiple input multiple output, massive, MIMO) technology can improve the system capacity, is one of the key technologies in the new generation of wireless access technology (new radio, NR).
  • new radio new radio
  • the terminal equipment will be configured with multiple antennas, so that the terminal equipment can be suitable for multi-stream transmission scenarios and improve the performance of uplink transmission.
  • a network device can improve services for multiple terminal devices at the same time, such as using space division for data transmission for multiple terminal devices at the same time.
  • This technology may also be referred to as a multi-user MIMO (multi-user MIMO, MU-MIMO) technology.
  • multi-user MIMO multi-user MIMO
  • MU-MIMO multi-user MIMO
  • the embodiments of the present application provide a method and an apparatus for determining a reference signal sequence, which can enable a terminal device to obtain a reference signal sequence in time, and improve the interference situation between different terminal devices.
  • an embodiment of the present application provides a method for determining a reference signal sequence, the method comprising:
  • Receive first indication information from a network device where the first indication information is used to indicate a transmission configuration indicator (transmission configuration indicator, TCI) state, and the TCI state is associated with the reference signal sequence; determine according to the first indication information the reference signal sequence.
  • TCI transmission configuration indicator
  • the methods provided in the embodiments of the present application can be applied to terminal devices.
  • the terminal device By correlating the reference signal sequence with the TCI state, the terminal device can obtain the reference signal sequence according to the TCI state. Therefore, the terminal device can use the reference signal sequence to perform channel estimation and the like.
  • receiving the first indication information from the network device includes: in the case of switching from a first transmission reception point (transmission reception point, TRP) to a second TRP, receiving all the information from the network device Describe the first indication information.
  • TRP transmission reception point
  • the TCI state may be used to indicate large-scale parameters of the channel.
  • the geographical location of different TRPs may be different, or, even in the same location, the directions facing the terminal equipment may be different (like antenna panels facing different directions on the same site). Therefore, signals sent by different TRPs will experience different propagation paths (that is, the channel large-scale parameters of the first TRP are different from the channel large-scale parameters of the second TRP). Therefore, when the terminal device performs TRP switching, the network device needs to send The terminal equipment indicates the TCI status.
  • the first TRP and the second TRP may be TRPs in a logical cell formed by a networking technology.
  • the network device shown in the embodiment of the present application may be the first TRP, the second TRP, or the like, which is not limited in the embodiment of the present application.
  • the terminal device after the terminal device switches from the first TRP to the second TRP, if the terminal device still uses the reference signal sequence used in the first TRP, the terminal device may communicate with the terminal device in the second TRP. cause greater interference. Therefore, in the embodiment of the present application, after the terminal device switches the TRP, the terminal device can obtain the reference signal sequence used in the second TRP in time through the first indication information, thereby effectively improving the communication between the terminal device and the second TRP.
  • the interference situation of the terminal equipment That is, the reference signal sequence associated with the TCI state can be understood as the reference signal sequence used by the terminal device in the second TRP.
  • the TCI state is associated with a scrambled identifier (identifer, ID) of the reference signal sequence.
  • the terminal device may generate the reference signal sequence according to the scrambling ID.
  • the method of obtaining the reference signal sequence according to the scrambling ID reference may be made to the following, which will not be described in detail here.
  • the reference signal sequence includes a demodulation reference signal (demodulation reference signal, DMRS) sequence
  • the method further includes: performing channel estimation according to the DMRS sequence.
  • DMRS demodulation reference signal
  • the TCI status includes indication information for indicating the scramble ID.
  • the TCI state may directly include information for indicating the scrambled ID, so that the terminal device can directly obtain the scrambled ID from the TCI state, thereby determining the reference signal sequence.
  • the indication field of the TCI state is associated with the scrambling ID.
  • the indication field of the TCI state may also be understood as the value of the field, and the field is used to indicate the TCI state. That is, the terminal device can obtain not only the TCI status but also the scrambling ID indicated by the TCI field through the TCI field. For example, the terminal device can obtain not only the TCI state, but also the reference signal sequence corresponding to the TRP after the handover (ie, the second TRP). Therefore, on the premise of not increasing the signaling overhead, the terminal device can obtain the reference signal sequence corresponding to the TRP after the handover in time.
  • the TCI state includes information of a channel state reference signal (channel state information reference signal, CSI-RS), and the information of the CSI-RS is associated with the scrambling ID.
  • CSI-RS channel state information reference signal
  • the information of the CSI-RS includes the identifier of the CSI-RS and/or the scrambling information of the CSI-RS.
  • the TCI state includes information of a synchronization signal block (synchronization signal block, SSB), and the information of the SSB is associated with the scrambling ID.
  • a synchronization signal block synchronization signal block, SSB
  • the SSB may also be referred to as a synchronization/physical broadcast channel (synchronization/physical broadcast channel, SS/PBCH) block.
  • a synchronization/physical broadcast channel synchronization/physical broadcast channel, SS/PBCH
  • the information of the SSB includes any one or more of the following: frequency band information of the SSB, bandwidth information of the SSB, period information of the SSB, and time domain of the SSB information, the physical cell identity of the SSB, or the beam information of the SSB.
  • the TCI state includes an identifier of a serving cell, and the identifier of the serving cell is associated with the scrambling ID.
  • the scrambling ID is associated with the information that can be included in the TCI state, so that the terminal device can not only obtain the relevant information of the TCI state after the switch, but also obtain the reference signal sequence corresponding to the TRP after the switch.
  • the terminal device can not only obtain the relevant information of the TCI state after the switch, but also obtain the reference signal sequence corresponding to the TRP after the switch.
  • the terminal equipment uses the reference signal sequence corresponding to the switched TRP, thereby ensuring that the terminal equipment can maintain the orthogonality with the DMRS sequence between the terminal equipment in the switched TRP, improving the terminal equipment. Interference with the terminal equipment in the TRP after the handover.
  • the method before the determination of the reference signal sequence according to the first indication information, the method further includes: receiving second indication information from the network device, the second indication information is used to indicate whether the TCI state is associated with the reference signal sequence; determining the reference signal sequence according to the first indication information includes: determining the reference signal according to the first indication information and the second indication information sequence.
  • the terminal device may determine whether the TCI state is associated with the reference signal sequence through the second indication information.
  • the second indication information may be used to indicate whether the terminal device determines the reference signal sequence according to the first indication information. If the second indication information indicates that the TCI state is associated with the reference signal sequence, the terminal device may obtain the reference signal sequence according to the relevant information of the TCI state indicated by the first indication information. If the second indication information indicates that the TCI state is not associated with the reference signal sequence, the terminal device may obtain relevant information of the TCI state according to the first indication information. That is, in this case, the terminal device cannot obtain the reference signal sequence indicated by the terminal device according to the relevant information of the TCI state.
  • the first indication information or the second indication information is included in any one of the following signaling: radio resource control (radioresource control, RRC) signaling, medium access control (medium access control) access control, MAC) control element (MAC control element, MAC CE) signaling, downlink control information DCI.
  • radio resource control radio resource control
  • RRC radio resource control
  • medium access control medium access control
  • MAC control element
  • DCI downlink control information
  • an embodiment of the present application provides a method for determining a reference signal sequence, the method comprising:
  • the terminal device determining the reference signal sequence; sending first indication information to the terminal device, where the first indication information is used to indicate that the transmission configuration indicates a TCI state, and the TCI state is associated with the reference signal sequence.
  • the TCI state is associated with the scrambling identification ID of the reference signal sequence.
  • the TCI status includes indication information for indicating the scramble ID.
  • the indication field of the TCI state is associated with the scrambling ID.
  • the TCI state includes channel state reference signal CSI-RS information, and the CSI-RS information is associated with the scrambling ID.
  • the information of the CSI-RS includes the identifier of the CSI-RS and/or the scrambling information of the CSI-RS.
  • the TCI state includes information of a synchronization information block SSB, and the information of the SSB is associated with the scrambling ID.
  • the information of the SSB includes any one or more of the following: frequency band information of the SSB, bandwidth information of the SSB, period information of the SSB, and time domain of the SSB information, the physical cell identity of the SSB, or the beam information of the SSB.
  • the TCI state includes an identifier of a serving cell, and the identifier of the serving cell is associated with the scrambling ID.
  • the method further includes: sending second indication information to the terminal device, where the second indication information is used to indicate whether the TCI state is associated with the reference signal sequence.
  • the first indication or the second indication information is included in any one of the following signaling: radio resource control RRC signaling, medium access control MAC control element CE signaling, downlink Control information DCI.
  • the reference signal sequence includes a demodulation reference signal DMRS sequence.
  • an embodiment of the present application provides a communication apparatus for executing the method in the first aspect or any possible implementation manner of the first aspect; or, for executing the second aspect or any possible implementation manner of the second aspect method in the implementation.
  • the communication apparatus includes a corresponding unit having a method for performing the first aspect, the second aspect or any of the possible implementations.
  • the communication device may include a transceiving unit and a processing unit.
  • the transceiver unit is used for inputting the first indication information; the processing unit is used for determining the reference signal sequence according to the first indication information.
  • the processing unit is configured to determine the reference signal sequence; the transceiver unit is configured to output the first indication information.
  • transceiver unit and the processing unit, reference may be made to the apparatus embodiments shown below, which will not be described in detail here.
  • an embodiment of the present application provides a communication device, where the communication device includes a processor, configured to execute the method shown in the first aspect or any possible implementation manner of the first aspect; or, configured to execute the above The method shown in the second aspect or any possible implementation of the second aspect.
  • the process of sending information and receiving information in the above method can be understood as the process of outputting the above-mentioned information by the processor and the process of receiving the above-mentioned input information by the processor.
  • the processor When outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver for transmission by the transceiver. After the above-mentioned information is output by the processor, other processing may be required before reaching the transceiver.
  • the processor receives the above-mentioned information input, the transceiver receives the above-mentioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to perform other processing before being input to the processor.
  • the sending of the first indication information mentioned in the foregoing method may be understood as the processor outputting the first indication information.
  • receiving the first indication information may be understood as the processor receiving the first indication information and the like.
  • the above-mentioned processor may be a processor specially used to execute these methods, or may be a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor.
  • the above-mentioned memory can be a non-transitory (non-transitory) memory, such as a read-only memory (read only memory, ROM), which can be integrated with the processor on the same chip, or can be set on different chips respectively.
  • ROM read-only memory
  • the memory is located outside the communication device.
  • the memory is located within the communication device.
  • the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.
  • the communication apparatus further includes a transceiver for receiving and/or transmitting signals.
  • an embodiment of the present application provides a communication device, the communication device includes a logic circuit and an interface, the logic circuit and the interface are coupled;
  • the interface is configured to input first indication information
  • the logic circuit is configured to determine a reference signal sequence according to the first indication information
  • the interface is specifically configured to input the first indication information in the case of switching from the first TRP to the second TRP.
  • the interface is further configured to input second indication information
  • the logic circuit is specifically configured to determine the reference signal sequence according to the first indication information and the second indication information .
  • the logic circuit is further configured to perform channel estimation according to the reference signal sequence.
  • the logic circuit is configured to determine the reference signal sequence, and the interface is configured to output the first indication information.
  • the interface is further configured to output the second indication information.
  • an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, which, when running on a computer, enables the first aspect or any possible possibility of the first aspect.
  • the method shown in the implementation is performed; or, the method shown in the second aspect or any possible implementation of the second aspect is caused to be performed.
  • an embodiment of the present application provides a computer program product, the computer program product includes a computer program or computer code, which, when run on a computer, enables the first aspect or any possible implementation manner of the first aspect to be The method shown is executed; or, the method shown in the second aspect or any possible implementation manner of the second aspect is caused to be executed.
  • an embodiment of the present application provides a computer program, when the computer program runs on a computer, the method shown in the first aspect or any possible implementation manner of the first aspect is executed; or, the second aspect above Or the method shown in any possible implementation manner of the second aspect is performed.
  • an embodiment of the present application provides a wireless communication system, where the wireless communication system includes a terminal device and a network device, where the terminal device is configured to execute the first aspect or any possible implementation manner of the first aspect , the network device is configured to execute the second aspect or any possible implementation manner of the second aspect.
  • FIG. 1a is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 1b is a schematic diagram of a scenario of adjacent cell interference provided by an embodiment of the present application.
  • FIG. 2a is a schematic diagram of a scenario of a common cell networking provided by an embodiment of the present application.
  • 2b is a schematic diagram of a scenario of a super cell networking provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for determining a reference signal sequence provided by an embodiment of the present application
  • FIG. 4 to FIG. 6 are schematic structural diagrams of a communication device provided by an embodiment of the present application.
  • At least one (item) means one or more
  • plural means two or more
  • at least two (item) means two or three and three
  • “and/or” is used to describe the relationship of related objects, indicating that there can be three kinds of relationships, for example, "A and/or B” can mean: only A exists, only B exists, and both A and B exist three a situation.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one of the following” or similar expressions refers to any combination of these items. For example, at least one (a) 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" ".
  • the technical solutions provided in this application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, 5th generation (5G) mobile communication system or new wireless access Technology (new radio access technology, NR).
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication system may include a non-standalone (NSA, NSA) and/or an independent network (standalone, SA).
  • the technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. This application does not limit this.
  • the technical solutions provided in this application can also be applied to machine type communication (MTC), Long Term Evolution-machine (LTE-M), and device-to-device (D2D) networks.
  • M2M Machine to Machine
  • IoT Internet of Things
  • the IoT network may include, for example, the Internet of Vehicles.
  • vehicle to X vehicle to X
  • V2X vehicle and vehicle Infrastructure
  • V2I vehicle to pedestrian
  • V2N vehicle to network
  • the network device can be any device with wireless transceiver function.
  • the device includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • evolved Node B evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • baseband unit
  • It can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, Such as baseband unit (BBU), or distributed unit (distributed unit, DU) and so on.
  • BBU baseband unit
  • DU distributed unit
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer function.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC medium access control
  • PHY physical layer.
  • AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas.
  • the higher-layer signaling such as the RRC layer signaling
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • the network equipment provides services for the cell, and the terminal equipment communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources, time-frequency resources, etc.) allocated by the network equipment, and the cell may belong to a macro base station (for example, a macro eNB). or macro gNB, etc.), or it can belong to the base station corresponding to the small cell, where the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • transmission resources for example, frequency domain resources, or spectrum resources, time-frequency resources, etc.
  • the cell may belong to a macro base station (for example, a macro eNB). or macro gNB, etc.), or it can belong to the base station corresponding to the small cell, where the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell
  • a terminal device may also be referred to as user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.
  • user equipment user equipment
  • UE user equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminals can be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiver function (such as notebook computer, palmtop computer, etc.), mobile internet device (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), wireless terminals in unmanned driving (self driving), wireless terminals in remote medical (remote medical) Terminal, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless Telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device, computing device or connection with wireless communication capabilities
  • wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may also be a terminal device in an internet of things (Internet of things, IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.
  • NB narrow band
  • terminal equipment can also include sensors such as smart printers, train detectors, and gas stations.
  • the main functions include collecting data (part of terminal equipment), receiving control information and downlink data of network equipment, and sending electromagnetic waves to transmit uplink data to network equipment. .
  • FIG. 1a is a schematic diagram of a communication system 100 provided by an embodiment of the present application.
  • the communication system 100 may include at least one network device, such as the network device 101 shown in FIG. 1a, and the communication system 100 may further include at least one terminal device, such as the terminal device 102 shown in FIG. 1a to 107.
  • the terminal devices 102 to 107 may be mobile or stationary.
  • Each of the network device 101 and one or more of the end devices 102 to 107 may communicate over a wireless link.
  • Each network device can provide communication coverage for a specific geographic area and can communicate with terminal devices located within that coverage area.
  • the network device may send indication information to the terminal device, and the terminal device may determine a DMRS sequence based on the indication information, perform channel estimation according to the DMRS sequence, and so on. Therefore, the network device 101 and the terminal devices 102 to 107 in FIG. 1a constitute a communication system.
  • D2D technology can be used to realize direct communication between terminal devices.
  • D2D technology can be used for direct communication between terminal devices 105 and 106 and between terminal devices 105 and 107 .
  • Terminal device 106 and terminal device 107 may communicate with terminal device 105 individually or simultaneously.
  • the terminal devices 105 to 107 can also communicate with the network device 101, respectively. For example, it can communicate directly with the network device 101 , for example, the terminal devices 105 and 107 can communicate directly with the network device 101 . Alternatively, it can also communicate with the network device 101 indirectly, for example, the terminal device 107 communicates with the network device 101 via the terminal device 105 .
  • FIG. 1a exemplarily shows a network device and a plurality of terminal devices, as well as the communication links between the communication devices.
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminal devices, such as more or less terminal devices. This application does not limit this.
  • Each of the above communication devices may be configured with multiple antennas.
  • the plurality of antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain, which can be understood by those of ordinary skill in the art, all of which may include multiple components (eg, processors, modulators, multiplexers) related to signal transmission and reception. , demodulator, demultiplexer or antenna, etc.). Therefore, the network device and the terminal device can communicate through the multi-antenna technology.
  • the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which are not limited in this embodiment of the present application.
  • network entities such as a network controller, a mobility management entity, and the like, which are not limited in this embodiment of the present application.
  • the communication system in the embodiments of the present application can provide downlink services for the same terminal device by using the coordinated multi-point (CoMP) technology, or receive uplink signals of the same terminal device, so as to solve the problem that the terminal device is located between multiple cells. interfered with.
  • the coordinated multipoint transmission technology may also be referred to as multi-station coordinated transmission.
  • the dotted line represents the interference to the terminal equipment from the neighboring cell
  • the solid line represents the useful signal of the cell.
  • the user equipment (UE) at the edge of the cell receives useful signals from the cell. interfered by neighbors.
  • the CoMP technology can use dynamic cell selection/dynamic point selection (DCS/DPS), that is, the network side dynamically selects a better transmission access point (transmission access point). point, TRP), serving the UE.
  • DCS/DPS the TRP of each UE is dynamically selected.
  • the TRP of UE2 can be dynamically switched from TRP2 to TRP1 to ensure that UE2 is in a stronger cell signal In this way, the weaker cell signal becomes interference, so that the difference in the channel between the TRP and the UE between the two cells is used to improve the signal-to-interference and noise ratio of the UE.
  • the QCL relationship is used to describe whether two antenna ports have a quasi-co-located relationship. There is a quasi-co-located QCL relationship between the two antenna ports, which means that the large-scale channel parameters experienced by a signal on one symbol corresponding to one antenna port can be obtained from the large-scale channel parameters obtained at the other antenna port.
  • Channel large-scale parameters can include one or more of the following: average gain, average delay, delay spread, Doppler shift, Doppler spread (Doppler spread), spatial parameter (spatial parameter).
  • the spatial parameters may include one or more of the following parameters: angle of arrival (AoA), dominant (Dominant) angle of incidence AoA, average angle of incidence, power angular spectrum (PAS) of the angle of incidence, Angle of Departure (AOD), Dominant AoD, Average AoD, Angle of Arrival (AOA), Dominant AoA, Average AoA ), channel correlation matrix, power angle spread spectrum of arrival angle, power angle spread spectrum of departure angle, transmit channel correlation, receive channel correlation, transmit beamforming, receive beamforming, spatial channel correlation, spatial filter, spatial Filter parameters, spatial Rx parameters, etc.
  • the standard defines four types of QCL relationships, and the channel large-scale parameters of different types of QCL relationships are also different, for example:
  • QCL Type A Doppler shift, Doppler spread, average delay, delay spread
  • QCL relationship of type B (QCL Type B): Doppler shift, Doppler spread;
  • QCL relationship of type C (QCL Type C): average delay, Doppler shift;
  • Doppler shift can be translated as Doppler shift, Doppler frequency shift or Doppler frequency offset.
  • different TRPs may have different geographical locations, or different TRPs are in the same location but face the UE in different directions (for example, antenna panels facing different directions on a site are each TRP), and the signals sent by different TRPs , the propagation paths experienced are also different. Therefore, the signals sent by different TRPs to a UE, they experience the average channel gain (such as path loss), average delay, delay spread, Doppler frequency shift, Doppler spread, spatial parameters (such as the reception of the corresponding UE) beam), etc., may be different. Therefore, it can be considered that the relationship between the antenna ports sent by different TRPs should be in a non-quasi-co-located relationship, while the relationship between the antenna ports of the same TRP may be in a quasi-co-located relationship.
  • TRP#1 and TRP#2 send CSI-RS#1 and CSI-RS#2 to the UE respectively (which can be used for time-frequency tracking, CSI measurement, etc.).
  • the network device can select TRP#1 to send the data PDSCH, so it needs to indicate to the UE to let the UE know that the antenna port of PDSCH and the antenna port of CSI-RS#1 are QCL.
  • This indication information can be completed through the TCI status.
  • the network equipment needs to indicate the TCI status to the terminal equipment, so as to indicate the QCL relationship between the signals (antenna ports).
  • TCI state1 can contain CSI-RS resource identifier 1 and its associated channel large-scale parameter type A, and then configure TCI state1 to PDSCH. Then the meaning is that the DMRS antenna port of PDSCH and the CSI-RS antenna port of CSI-RS 1 have antenna port information about Doppler offset, Doppler spread, average delay, and delay spread. That is to say, the Doppler shift, Doppler spread, average delay, delay spread and other information obtained on the CSI-RS antenna port of CSI-RS 1 can be used for DMRS of PDSCH, thereby helping DMRS Channel estimation and PDSCH demodulation.
  • the TCI state may include an identifier of the TCI state and/or the configuration of QCL information.
  • the identifier of the TCI state such as TCI state #1, #2, etc. shown above.
  • the configuration of QCL information may include one or more configurations of QCL information.
  • a QCL information can include any one or more of the following:
  • the information of the reference signal such as the information used to indicate the identity of the CSI-RS and/or the identity of the SSB.
  • QCL types such as typeA to typeD listed above.
  • Cell information such as a serving cell identity, which can be used to identify which serving cell the reference signal is from.
  • Bandwidth part (bandwidth part, BWP) information such as a BWP identifier
  • the BWP identifier can be used to identify which BWP the reference signal comes from.
  • the TCI status may also include other information.
  • This other information may include any one or more of the following:
  • the non-cell information may include: any one or more of a cell identity of a non-serving cell, a physical cell identity of a non-serving cell, an identity of a measurement object (measurement object, MO), and the like.
  • the identifier of the MO may include the physical cell identifier of the MO and/or frequency band information of the MO, and the like.
  • the information of the SSB may be information related to the SSB.
  • the information of the SSB may include any one or more of the following: frequency band information of the SSB, bandwidth information of the SSB, period information of the SSB, frame information of the SSB, physical cell identity of the SSB, and beam information of the SSB.
  • the frequency band information of the SSB may indicate the position of the frequency point corresponding to the center frequency point of the SSB.
  • the frame information of the SSB may include radio frame information of the SSB, system frame information of the SSB, subframe information of the SSB, and the like.
  • DMRS of PDCCH in addition to CSI-RS and SSB, DMRS of PDCCH, DMRS of PDSCH, SRS, RACH, DMRS of PUCCH, DMRS of PUSCH, positioning reference signal, etc. can also be configured.
  • the applicable scenarios of the solutions provided below in this application can be wider, and the UE can also be flexibly moved among multiple TRPs.
  • the TCI field is the value of the field in the signaling, and this field can be used to indicate the TCI state.
  • the terminal device can learn the channel large-scale parameters of the DMRS of the received PDSCH based on the TCI state indicated by the TCI field, and then demodulate the PDSCH based on the channel estimation.
  • the TCI state may not be indicated by DCI, for example, it may be obtained by means of RRC configuration, MAC CE indication, or joint determination by MAC CE and DCI.
  • multiple TCI states can be configured through RRC signaling, and then some of the states are selected in MAC-CE signaling, and then DCI is used to indicate one or more of the selected partial states in MAC-CE, for PDSCH reception.
  • the field indicated in this DCI may be referred to as the TCI indication field.
  • TCI states #1 to #128 are configured in the RRC signaling.
  • the MAC-CE signaling indicates 8 TCI states in the RRC signaling, which correspond to the 3-bit states of the DCI.
  • the MAC-CE signaling indicates TCI#1, #3...,#20.
  • the indication value corresponding to DCI of TCI#1 may be 000
  • the indication value corresponding to DCI of TCI#3 may be 001
  • the indication value corresponding to DCI of TCI#20 may be 111.
  • the number of bits in the TCI field may also have the following characteristics:
  • the number of bits in the TCI field can also be 1 bit, 2 bits, or 0 bits.
  • the number of bits in the TCI field may have different configurations. At the same time, the number of bits in the TCI field may also be different for different terminal devices. Thus, the number of bits in the TCI field can be adapted to different states of the terminal equipment. For example, when the terminal device moves fast, the number of bits in the TCI field can be configured as a first value (such as 3 bits, 2 bits, or 4 bits, etc.), so that more TCI switching instructions can be configured for the terminal device. For another example, when the terminal device moves slowly, the number of bits in the TCI field can be configured to a second value (such as 1 bit or 2 bits, etc.), so that fewer TCI switching instructions can be configured for the terminal device. The first value shown here may be greater than or equal to the second value, etc. The present application does not limit the specific value of the first value or the second value.
  • the DCI may include indication information of the TCI states of multiple terminal devices. Meanwhile, the number of bits in the TCI field of each terminal device may be different or the same (ie, each UE may correspond to one TCI field respectively), etc., which is not limited in this application.
  • the TCI indications of multiple UEs may be in the same DCI, and the size of the TCI indication fields of each UE may be variable. For example, there are TCI indication fields for multiple UEs in one DCI, and the TCI fields of some UEs are 2 bits, and the TCI fields of other UEs are 3 bits.
  • This implementation can adapt to different states of the terminal equipment. For example, different UEs may have different moving speeds. Therefore, by configuring the number of bits in different TCI fields, it can adapt to the needs of different UEs for TCI handover instructions.
  • the DCI may include indication information of the TCI states of multiple terminal devices. Meanwhile, the multiple terminal devices may correspond to the same TCI domain. In this case, although the number of bits in the TCI field is fixed, for different terminal devices, different terminal devices can read some bits in the TCI field respectively. That is to say, the terminal device may only use part of the bits in the TCI field, or only use part of the activation state in the TCI field, and so on. For example, UE1 and UE2 both read the value of the TCI field in the same DCI, and the TCI field activates 4 TCI states.
  • UE1 can only use the first TCI state, and UE2 can only use the second TCI state; UE1 may only use the first two TCI states, UE2 may only use the last two TCI states, and so on.
  • Which TCI state or which bits in the TCI field are used by different terminal devices can be configured by the network device or determined by the network device according to the capability information reported by the terminal device, which is not limited in this application.
  • the TCI status can be indicated to the multiple terminal devices through one DCI.
  • FIG. 2a is a schematic diagram of a scenario of a communication system provided by an embodiment of the present application.
  • the UE can move between different cells, and different cells have different cell physical IDs.
  • the UE needs to perform a cell handover procedure when moving between different cells.
  • FIG. 2b shows a schematic diagram of a scenario of Hypercell (Hypercell) networking.
  • multiple cells can be combined with each other, for example, multiple physical cells can logically belong to the same cell. Therefore, when the UE moves between cells, it is not necessary to perform a high-level cell handover process, which can effectively improve the phenomenon of UE dropped calls.
  • HyperCell is a networking technology that can combine multiple physical cells (such as TRP) into one logical cell.
  • TRP physical cells
  • the UE1 and the UEs within the TRP1 are code-division multiplexed.
  • the UE1 and the UEs within the TRP1 use different orthogonal codes, and the UE1 and the UEs within the TRP1 use the same sequence (sequence, or called the sequence generation). Therefore, the UE1 and the UE in the TRP1 use orthogonal reference signal sequences.
  • TRP2 also referred to as the second TRP
  • the UE1 cannot quickly know the reference signal sequence in TRP2
  • the UE1 is still positive to the UE in TRP1
  • the UE1 and the UE in TRP2 may be non-orthogonal. Therefore, there is relatively large interference between the UE1 and the UEs in the TRP2.
  • the present application provides a method and apparatus for determining a reference signal sequence, which can ensure that a terminal device obtains a reference signal sequence in time, and improve the interference situation between the terminal device and the UE in the TRP. Meanwhile, when the terminal device performs TRP switching, the TCI state of the terminal device also needs to be reconfigured. Therefore, the technical solution provided by the present application can effectively indicate the reference signal sequence through the TCI state.
  • FIG. 3 is a method for determining a reference signal sequence provided by an embodiment of the present application. As shown in FIG. 3 , the method includes:
  • the network device determines a reference signal sequence.
  • the reference signal sequence may include a DMRS sequence, a sounding reference signal (sounding reference signal, SRS) sequence, etc., which is not limited in this embodiment of the present application.
  • the reference signal sequence may also include a sequence of a physical uplink control channel (PUCCH), a DMRS sequence of a PUCCH, a sequence of a physical random access channel (PRACH), and a DMRS of PDSCH.
  • the sequence, the DMRS sequence of the PDCCH or the DMRS sequence of the physical uplink shared channel (PUSCH), any one or more of the CSI-RS sequence, etc., the embodiment of the present application does not limit the reference signal sequence.
  • the network device may determine the scrambling ID, and then determine the DMRS sequence according to the scrambling ID.
  • the relationship between the scrambled ID and the DMRS sequence is as follows: an initialization seed of the sequence can be obtained according to the scrambled ID, and then a series of sequences can be generated according to the initialization seed and the random sequence.
  • the generation method for this initialization seed is as follows:
  • c(i) (c(2n) or c(2n+1) as shown below) is a pseudo-random sequence derived from the randomization seed of the above formula.
  • the network device may also determine the reference signal sequence according to other parameters, which is not limited in this embodiment of the present application.
  • other parameters can be other factors used in generating randomization seeds, including (number of symbols in a slot), (slot number), l (symbol number), (It is obtained from the scrambling ID, which, for example, can be equal to the scrambling ID.)
  • reference signal sequences shown in the embodiments of the present application may also be understood as pilot sequences, etc., and the names of the reference signal sequences are not limited in the embodiments of the present application.
  • the network device sends first indication information to the terminal device, where the first indication information is used to indicate a TCI state, and the TCI state is associated with a reference signal sequence.
  • the terminal device receives the first indication information.
  • the above-mentioned first indication information may be included in any one of RRC signaling, MAC CE signaling or DCI.
  • the above-mentioned first indication information may be located in the first field in the above-mentioned RRC signaling, that is, the first field may be used to carry the first indication information.
  • the first indication information may be located in the second field in the MAC CE signaling, that is, the second field may be used to carry the first indication information.
  • the first indication information may be located in a third field in the DCI, that is, the third field may be used to carry the first indication information. This embodiment of the present application does not limit what kind of signaling is included in the first indication information.
  • the TCI state is associated with a DMRS sequence, and the terminal device can determine the DMRS sequence according to the TCI state.
  • the TCI state may also be associated with a scrambled ID (scrambing ID) of the DMRS sequence, so that the terminal device can determine the DMRS sequence according to the scrambled ID.
  • the TCI state may also be associated with CSI-RS scrambling information and PDSCH scrambling information.
  • the TCI state associated DMRS sequence may be understood as the information associated DMRS sequence related to the TCI state.
  • the specific description of the DMRS sequence associated with the TCI state can be as follows:
  • the TCI state includes indication information for indicating the DMRS sequence.
  • the TCI status includes indication information for indicating the scrambling ID.
  • the configuration of the TCI state may include indication information for indicating the DMRS sequence; or, the configuration of the TCI state may include indication information for indicating the scrambling ID.
  • the terminal equipment can be made to know the DMRS sequence used in the TRP after the handover, and the implementation is simple.
  • the indication field of the TCI state is associated with the scrambling ID.
  • the indication field of the TCI state is associated with the scrambling ID, which can be understood as the value of the first field in the RRC signaling is associated with the scrambling ID; or, the value of the second field in the MAC CE signaling is associated with the scrambling ID; or, The value of the third field in the DCI is associated with the scrambling ID.
  • the first field, the second field or the third field is an indication field of the TCI state.
  • TCI#1 to TCI#128 may be configured in the RRC signaling, and 8 of the 128 TCI states may be configured in the MACCE signaling. Therefore, the DCI may indicate the 8 TCIs through 3 bits (bits). state.
  • the field used to indicate the TCI state in the DCI shown here can be understood as the TCI indication field.
  • the 8 TCI states are TCI#1 to TCI#8, the 3 bits corresponding to TCI#1 are 000, the 3 bits corresponding to TCI#2 are 001, and so on, the 3 bits corresponding to TCI#8 bit is 111. Therefore, in this embodiment of the present application, the scramble ID can be associated with the 000 to 111. It can be understood that 000 shown here corresponds to TCI#1, and 001 corresponds to TCI#1, etc., which are only examples. In specific implementation, 000 to 111 may also correspond to other TCI states, which are not limited in the embodiments of the present application.
  • 000 to 111 may also correspond to TCI#1, TCI#3, TCI#5, CTI#7, TCI#9, TCI#11, TCI#13, TCI#15, etc. in sequence. That is to say, the TCI state corresponding to the indication field of the TCI state may change.
  • the scrambling ID is not associated with the TCI state (such as TCI#1, TCI#2, etc.), but the TCI state
  • the indication field is associated with the scrambling ID.
  • 8 TCI states can be indicated by 3 bits in DCI, and the 8 TCI states can be any 8 TCI states from TCI#1 to TCI#128, but the value of the 3 bits can only be is 000 to 111.
  • the terminal device can obtain not only the TCI status but also the scrambling ID indicated by the TCI field through the TCI field. For example, the terminal device can obtain not only the TCI state, but also the reference signal sequence corresponding to the TRP after the handover (ie, the second TRP). Therefore, on the premise of not increasing the signaling overhead, the terminal device can obtain the reference signal sequence corresponding to the TRP after the handover in time.
  • the TCI state includes CSI-RS information, and the CSI-RS information is associated with a scrambling ID.
  • the information of the CSI-RS as configured in the TCI state can be used to associate the scrambling ID.
  • the identification of the CSI-RS may be used to associate the scrambling ID; or, the scrambling information of the CSI-RS may be used to associate the scrambling ID.
  • the scrambling information of the CSI-RS as configured in the TCI state may be the scrambling ID of the DMRS sequence.
  • the scrambling information of the CSI-RS may also be used as the scrambling information of the DMRS sequence.
  • the TCI state includes the information of the SSB, and the information of the SSB is associated with the scramble ID.
  • the information of the SSB as configured in the TCI state can be used to correlate the scrambling ID.
  • the information of the SSB includes any one or more of the following: frequency band information of the SSB, bandwidth information of the SSB, period information of the SSB, time domain information of the SSB, physical cell identity of the SSB or beam information of the SSB.
  • the TCI state includes the identity of the serving cell, and the identity of the serving cell is associated with the scrambling ID. That is, the TCI state includes information indicating the identity of the serving cell. Or, the identifier of the serving cell configured in the TCI state is associated with the scrambling ID.
  • the scrambling ID is associated with the information that can be included in the TCI state, so that the terminal device can not only obtain the relevant information of the TCI state after the switch, but also obtain the reference signal sequence corresponding to the TRP after the switch.
  • the terminal device can not only obtain the relevant information of the TCI state after the switch, but also obtain the reference signal sequence corresponding to the TRP after the switch.
  • the terminal equipment uses the reference signal sequence corresponding to the switched TRP, thereby ensuring that the terminal equipment can maintain the orthogonality with the DMRS sequence between the terminal equipment in the switched TRP, improving the terminal equipment. Interference with the terminal equipment in the TRP after the handover.
  • the terminal device determines a reference signal sequence according to the first indication information.
  • the terminal device may determine the DMRS sequence according to the scrambling ID.
  • the method for determining the DMRS sequence for the scrambling ID can be described above, and will not be described in detail here.
  • the method shown in FIG. 3 further includes:
  • the terminal device receives second indication information from the network device, where the second indication information is used for whether the TCI state is associated with the scrambling ID. Therefore, the above step 303 includes the terminal device determining the reference signal sequence according to the first indication information and the second indication information.
  • the second indication information and the first indication information may be included in the same signaling.
  • the second indication information and the first indication information may be included in any one of RRC signaling, MAC CE signaling or DCI.
  • the second indication information may also be included in different signaling from the first indication information.
  • the different signaling shown here can be understood as different types of signaling, for example, the second indication information is included in the MAC CE signaling, and the first indication information is included in the DCI.
  • the different signaling shown here can also be understood as different signaling of the same type, for example, the second indication information is included in the first DCI, and the first indication information is included in the second DCI. This embodiment of the present application does not limit whether the first indication information and the second indication information are located in the same signaling.
  • the fourth field in the DCI may be used to indicate whether the TCI state is associated with a scrambling ID.
  • the value of the fourth field is a first value (eg, 0)
  • the first value may represent a TCI state associated scrambling ID.
  • the terminal device can determine through the first indication information which information related to the scrambling ID is specifically configured by the TCI state.
  • the value of the fourth field is a second value (eg 1)
  • the second value may be used to indicate that the TCI state is not associated with the scrambling ID.
  • the terminal device can use the DMRS sequence in TRP1 to perform channel estimation and the like.
  • the terminal device may also use a preconfigured scrambling ID to determine a DMRS sequence, etc., which is not limited in this embodiment of the present application. It can be understood that the first value or the second value shown here can be understood as the above-mentioned second indication information.
  • the specific description that the second indication information is located in the RRC signaling or the MAC CE signaling can refer to the description that the second indication information is located in the DCI, which will not be described in detail here.
  • the second indication information may be an indication field of the TCI state. That is, the indication field of the TCI state may be used to indicate whether the TCI state is associated with a scrambling ID. For example, when the indication field of the TCI state is 000, the terminal device can use the scrambling ID associated with the TCI state. When the indication field of the TCI state is 100, the TCI state is not associated with the scrambling ID.
  • the method shown in FIG. 3 further includes:
  • the terminal device performs channel estimation according to the reference signal sequence.
  • the terminal device may also perform time-frequency tracking, channel measurement, etc. according to the reference signal sequence, and the embodiment of the present application does not limit the role of the reference signal sequence.
  • the terminal device estimates the channel based on an algorithm such as the minimum error mean square error on the received DMRS signal.
  • Time-frequency tracking The terminal device can estimate the deviation in the time domain or the frequency domain according to the reference signal sequence received by the terminal device, and correct it, so as to achieve the effect of time-frequency tracking.
  • the terminal device can obtain the channel from the received reference signal according to the reference signal sequence, and then measure some parameters of the channel, such as the rank and phase of the channel.
  • the reference signal sequence is associated with the TCI state, and the terminal device can obtain the reference signal sequence according to the TCI state. Therefore, the terminal device can use the reference signal sequence to perform channel estimation and the like.
  • the present application divides the communication device into functional modules according to the above method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that the division of modules in this application is schematic, and is only a logical function division, and other division methods may be used in actual implementation.
  • the communication apparatus according to the embodiment of the present application will be described in detail below with reference to FIG. 4 to FIG. 6 .
  • FIG. 4 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application. As shown in FIG. 4 , the communication apparatus includes a processing unit 401 and a transceiver unit 402 .
  • the communication apparatus may be the terminal device shown above or a chip in the terminal device, or the like. That is, the communication apparatus may be used to perform the steps or functions performed by the terminal device in the above method embodiments.
  • the transceiver unit 402 is configured to input first indication information, where the first indication information is used to indicate a TCI state, and the TCI state is associated with a reference signal sequence;
  • the processing unit 401 is configured to determine a reference signal sequence according to the first indication information.
  • the transceiver unit 402 for inputting the first indication information includes: a transceiver unit 402 for receiving the first indication information from a network device.
  • the reference signal sequence includes a DMRS sequence
  • the processing unit 401 is further configured to perform channel estimation according to the DMRS sequence.
  • the transceiver unit 402 is specifically configured to input the first indication information in the case of switching from the first TRP to the second TRP.
  • the transceiver unit 402 is further configured to input the second indication information; the processing unit 401 is specifically configured to determine the reference signal sequence according to the first indication information and the second indication information.
  • the transceiver unit 402 configured to input the second indication information includes: a transceiver unit 402 configured to receive the second indication information from the network device.
  • the transceiver unit 402 can also be used to perform the receiving step in the step 302 shown in FIG. 3
  • the processing unit 401 can also be used to perform the step 303 shown in FIG. 3
  • the processing unit 401 may also be configured to perform step 304 and the like shown in FIG. 3 .
  • the communication apparatus may be the network device shown above or a chip in the network device, or the like. That is, the communication apparatus may be used to perform the steps or functions performed by the network device in the above method embodiments.
  • the processing unit 401 is configured to determine the reference signal sequence
  • the transceiver unit 402 is configured to output the first indication information.
  • the transceiver unit 402 is further configured to output the second indication information.
  • the transceiver unit 402 configured to output the first indication information includes the transceiver unit 402 configured to send the first indication information to the terminal device.
  • the transceiver unit 402 for outputting the second indication information includes: a transceiver unit 402 for sending the second indication information to the terminal device.
  • the processing unit 401 can also be used to perform step 301 shown in FIG. 3
  • the transceiver unit 402 can also be used to perform the sending step in step 302 shown in FIG. 3 .
  • the processing unit 401 may be one or more processors
  • the transceiver unit 402 may be a transceiver, or the transceiver unit 402 may also be a sending unit and a receiving unit
  • the sending unit may be a transmitter
  • the receiving unit may be a receiver
  • the sending unit and the receiving unit are integrated into one device, such as a transceiver.
  • the processor and the transceiver may be coupled, etc., and the connection manner of the processor and the transceiver is not limited in the embodiment of the present application.
  • the communication device 50 includes one or more processors 520 and a transceiver 510 .
  • the transceiver 510 when the communication apparatus is used to perform the steps or methods or functions performed by the above-mentioned terminal equipment, the transceiver 510 is used to receive the first indication information from the network equipment; the processor 520 is used to receive the first indication information according to the first indication information. Determine the reference signal sequence. For another example, the processor 520 is further configured to perform channel estimation according to the DMRS sequence. For another example, the transceiver 510 is further configured to receive the second indication information from the network device. For another example, the transceiver 510 is specifically configured to receive the first indication information from the network device in the case of switching from the first TRP to the second TRP.
  • the processor 520 is used to determine the reference signal sequence, and the transceiver 510 is used to send the first indication information to the terminal equipment.
  • the transceiver 510 is further configured to send the second indication information to the terminal device.
  • the transceiver may include a receiver for performing the function (or operation) of receiving and a transmitter for performing the function (or operation) of transmitting ). And transceivers are used to communicate with other devices/devices over the transmission medium.
  • the communication device 50 may further include one or more memories 530 for storing program instructions and/or data.
  • Memory 530 is coupled to processor 520 .
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 520 may cooperate with memory 530 .
  • Processor 520 may execute program instructions stored in memory 530 .
  • at least one of the above-mentioned one or more memories may be included in the processor.
  • the specific connection medium between the transceiver 510 , the processor 520 , and the memory 530 is not limited in the embodiments of the present application.
  • the memory 530, the processor 520, and the transceiver 510 are connected through a bus 540 in FIG. 5.
  • the bus is represented by a thick line in FIG. 5, and the connection between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 5, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor, or the like.
  • the memory may include, but is not limited to, a non-volatile memory such as a hard disk drive (HDD) or a solid-state drive (SSD), a random access memory (Random Access Memory, RAM), Erasable Programmable Read-Only Memory (Erasable Programmable ROM, EPROM), Read-Only Memory (Read-Only Memory, ROM) or Portable Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) and so on.
  • a memory is any storage medium that can be used to carry or store program codes in the form of instructions or data structures, and can be read and/or written by a computer (such as the communication devices shown in this application, etc.), but is not limited thereto.
  • the memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and/or data.
  • the processor 520 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute software programs, process software program data.
  • the memory 530 is mainly used to store software programs and data.
  • the transceiver 510 may include a control circuit and an antenna, and the control circuit is mainly used for converting baseband signals to radio frequency signals and processing radio frequency signals. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor 520 can read the software program in the memory 530, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 520 performs baseband processing on the data to be sent, and outputs a baseband signal to a radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through an antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 520.
  • the processor 520 converts the baseband signal into data and processes the data. deal with.
  • the radio frequency circuit and antenna can be provided independently of the processor that performs baseband processing.
  • the radio frequency circuit and antenna can be arranged remotely from the communication device. .
  • the communication device shown in the embodiment of the present application may also have more components and the like than that in FIG. 5 , which is not limited in the embodiment of the present application.
  • the method performed by the processor and the transceiver shown above is only an example, and for the specific steps performed by the processor and the transceiver, reference may be made to the method described above.
  • the processing unit 401 may be one or more logic circuits, and the transceiver unit 402 may be an input and output interface, also called a communication interface, or an interface circuit , or interfaces, etc.
  • the transceiver unit 402 may also be a sending unit and a receiving unit, the sending unit may be an output interface, and the receiving unit may be an input interface, the sending unit and the receiving unit are integrated into one unit, such as an input and output interface.
  • the communication device shown in FIG. 6 includes a logic circuit 601 and an interface 602 .
  • the above-mentioned processing unit 901 can be implemented by the logic circuit 601
  • the transceiver unit 902 can be implemented by the interface 602 .
  • the logic circuit 601 may be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, etc.
  • the interface 602 may be a communication interface, an input-output interface, or the like.
  • the logic circuit and the interface may also be coupled to each other.
  • the specific connection manner of the logic circuit and the interface is not limited in the embodiment of the present application.
  • the interface 602 is used to input first indication information, where the first indication information is used to indicate the TCI state, and the TCI state is associated with the reference signal. sequence;
  • the logic circuit 601 is configured to determine the reference signal sequence according to the first indication information.
  • the reference signal sequence includes a DMRS sequence
  • the logic circuit 601 is further configured to perform channel estimation according to the DMRS sequence.
  • the interface 602 is specifically configured to input the first indication information in the case of switching from the first TRP to the second TRP.
  • the interface 602 is further configured to input the second indication information; the logic circuit 601 is specifically configured to determine the reference signal sequence according to the first indication information and the second indication information.
  • the logic circuit 601 is used to determine the reference signal sequence; the interface 602 is used to output the first indication information.
  • the interface 602 is further configured to output the second indication information.
  • the communication apparatus shown in the embodiments of the present application may implement the methods provided in the embodiments of the present application in the form of hardware, and may also implement the methods provided in the embodiments of the present application in the form of software, etc., which are not limited in the embodiments of the present application.
  • An embodiment of the present application further provides a wireless communication system, where the wireless communication system includes a network device and a terminal device, and the network device and the terminal device can be used to execute the method in any of the foregoing embodiments (as shown in FIG. 3 ).
  • the present application also provides a computer program for implementing the operations and/or processing performed by the network device in the method provided by the present application.
  • the present application also provides a computer program for implementing the operations and/or processing performed by the terminal device in the method provided by the present application.
  • the present application also provides a computer-readable storage medium, where computer codes are stored in the computer-readable storage medium, and when the computer codes are run on the computer, the computer is made to perform the operations performed by the network device in the method provided by the present application and/or or processing.
  • the present application also provides a computer-readable storage medium, where computer codes are stored in the computer-readable storage medium, and when the computer codes are run on the computer, the computer is made to perform the operations performed by the terminal device in the method provided by the present application and/or the terminal device. or processing.
  • the present application also provides a computer program product, the computer program product includes computer code or a computer program, when the computer code or computer program is run on a computer, the operation performed by the network device in the method provided by the present application and/or Processing is executed.
  • the present application also provides a computer program product, the computer program product includes computer code or computer program, when the computer code or computer program is run on a computer, the operation performed by the terminal device in the method provided by the present application and/or Processing is executed.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the technical effects of the solutions provided by the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • a computer-readable storage medium includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned readable storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc. that can store program codes medium.

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Abstract

本申请公开了一种确定参考信号序列的方法及装置，该方法包括：网络设备确定参考信号序列，并向终端设备发送第一指示信息；其中，该第一指示信息用于指示传输配置指示TCI状态，且该TCI状态关联所述参考信号序列。由此，终端设备接收该第一指示信息，并根据该第一指示信息确定参考信号序列。本申请提供的方法，终端设备在切换TRP的场景下，仍可以及时得到参考信号序列，能够改善不同终端设备之间的干扰情况。

Description

确定参考信号序列的方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种确定参考信号序列的方法及装置。
背景技术
在无线通信系统中，大规模多输入多输出(massive multiple input multiple output,massive，MIMO)技术能够提高系统容量，是新一代无线接入技术(new radio，NR)中的关键技术之一。NR技术中，终端设备通过会被配置多天线，由此该终端设备可以适合多流传输的场景，提高上行传输的性能。
在MIMO的场景下，网络设备可以同时为多个终端设备提高服务，如同时为多个终端设备采用空分的方式进行数据传输。该种技术也可以称为多用户MIMO(multi-user MIMO，MU-MIMO)技术。然而，当多个终端设备进行MU-MIMO传输时，终端设备之间的参考信号序列可能会存在干扰。
由此，终端设备如何获得参考信号序列，改善不同终端设备之间的干扰亟待解决。
发明内容
本申请实施例提供了一种确定参考信号序列的方法及装置，可以使得终端设备及时得到参考信号序列，改善了不同终端设备之间的干扰情况。
第一方面，本申请实施例提供一种确定参考信号序列的方法，所述方法包括：
接收来自网络设备的第一指示信息，所述第一指示信息用于指示传输配置指示(transmission configuration indicator，TCI)状态，所述TCI状态关联所述参考信号序列；根据所述第一指示信息确定所述参考信号序列。
本申请实施例提供的方法可以应用于终端设备。通过TCI状态关联参考信号序列，该终端设备可以根据该TCI状态获得参考信号序列。从而终端设备可以利用该参考信号序列进行信道估计等。
在一种可能的实现方式中，接收来自网络设备的第一指示信息包括：从第一传输接收点(transmission reception point，TRP)切换到第二TRP的情况下，接收来自所述网络设备的所述第一指示信息。
本申请实施例中，TCI状态可以用于指示信道大尺度参数。同时，由于不同TRP的地理位置可能不同，或者，即使在同一位置但是面向终端设备的方向也可能不同(如同一个站点上面向不同方向的天线面板)。因此不同的TRP发送的信号，所经历的传播路径会不同(即第一TRP的信道大尺度参数与第二TRP的信道大尺度参数不同)，所以当终端设备进行TRP切换时，网络设备需要向终端设备指示TCI状态。
可理解，该第一TRP和该第二TRP可以是通过组网技术组成的逻辑小区内的TRP。该情况下，即使终端设备从第一TRP切换到第二TRP，对于终端设备来说，该终端设备不会感知到高层的小区切换过程。因此，本申请实施例示出的网络设备可以为第一TRP，也可以为第二TRP等，本申请实施例对此不作限定。
本申请实施例中，终端设备从第一TRP切换到第二TRP后，如果该终端设备仍然在第 一TRP内使用的参考信号序列，则该终端设备可能与第二TRP内的终端设备之间产生较大干扰。因此，本申请实施例中，在终端设备切换TRP之后，通过第一指示信息该终端设备可以及时获得第二TRP内使用的参考信号序列，从而能够有效改善了该终端设备与第二TRP内的终端设备的干扰情况。即上述TCI状态关联的参考信号序列可以理解为第二TRP内，终端设备使用的参考信号序列。
在一种可能的实现方式中，所述TCI状态关联所述参考信号序列的加扰标识(identifer，ID)。
本申请实施例中，终端设备可以根据加扰ID生成参考信号序列。对于根据加扰ID得到参考信号序列的方法可以参考下文，这里先不详述。
在一种可能的实现方式中，所述参考信号序列包括解调参考信号(demodulation reference signal，DMRS)序列，所述方法还包括：根据所述DMRS序列进行信道估计。
在一种可能的实现方式中，所述TCI状态包括用于指示所述加扰ID的指示信息。
本申请实施例中，TCI状态中可以直接包括用于指示加扰ID的信息，从而使得终端设备能够直接从TCI状态中获得加扰ID，从而确定参考信号序列。
在一种可能的实现方式中，所述TCI状态的指示域关联所述加扰ID。
本申请实施例中，TCI状态的指示域(简称为TCI域)还可以理解为字段的取值，该字段即用于指示TCI状态。即终端设备通过该TCI域不仅可以获得TCI状态，还可以获得该TCI域所指示的加扰ID。例如，终端设备不仅可以获得TCI状态，还能够获得切换后的TRP(即第二TRP)对应的参考信号序列。从而在不增加信令开销的前提下，使得终端设备能够及时获得切换后的TRP对应的参考信号序列。
在一种可能的实现方式中，所述TCI状态包括信道状态参考信号(channel state information reference signal，CSI-RS)的信息，所述CSI-RS的信息关联所述加扰ID。
在一种可能的实现方式中，所述CSI-RS的信息包括所述CSI-RS的标识和/或所述CSI-RS的加扰信息。
在一种可能的实现方式中，所述TCI状态包括同步信息块(synchronization signal block，SSB)的信息，所述SSB的信息关联所述加扰ID。
本申请实施例中，SSB也可以称为同步/物理广播信道(synchronization/physical broadcast channel，SS/PBCH)块。
在一种可能的实现方式中，所述SSB的信息包括以下任一项或多项：所述SSB的频段信息、所述SSB的带宽信息、所述SSB的周期信息、所述SSB的时域信息、所述SSB的物理小区标识或所述SSB的波束信息。
在一种可能的实现方式中，所述TCI状态包括服务小区的标识，所述服务小区的标识关联所述加扰ID。
本申请实施例中，通过TCI状态中可以包括的信息来关联加扰ID，终端设备不仅可以获得切换后的TCI状态的相关信息，还能够获得切换后的TRP对应的参考信号序列，在不增加信令开销的基础上，有效保证了终端设备使用切换后的TRP对应的参考信号序列，从而保证终端设备能够与切换后的TRP内的终端设备之间的DMRS序列保持正交，改善该终端设备与切换后的TRP内的终端设备的干扰情况。
在一种可能的实现方式中，所述根据所述第一指示信息确定所述参考信号序列之前，所述方法还包括：接收来自所述网络设备的第二指示信息，所述第二指示信息用于指示所 述TCI状态是否关联所述参考信号序列；根据所述第一指示信息确定所述参考信号序列，包括：根据所述第一指示信息和所述第二指示信息确定所述参考信号序列。
本申请实施例中，终端设备可以通过第二指示信息确定TCI状态是否关联参考信号序列。换句话说，该第二指示信息可以用于指示终端设备是否根据第一指示信息确定参考信号序列。如果第二指示信息指示TCI状态关联参考信号序列，则终端设备可以根据第一指示信息指示的TCI状态的相关信息获得参考信号序列。如果第二指示信息指示TCI状态不关联参考信号序列，则终端设备可以根据第一指示信息获得TCI状态的相关信息。即该情况下，终端设备不能够根据TCI状态的相关信息获得其所指示的参考信号序列。
在一种可能的实现方式中，所述第一指示信息或所述第二指示信息包含于以下任一项信令中：无线资源控制(radioresource control，RRC)信令、媒体接入控制(medium access control，MAC)控制元素(MAC control element，MAC CE)信令、下行控制信息DCI。
第二方面，本申请实施例提供一种确定参考信号序列的方法，所述方法包括：
确定所述参考信号序列；向终端设备发送第一指示信息，所述第一指示信息用于指示传输配置指示TCI状态，所述TCI状态关联所述参考信号序列。
在一种可能的实现方式中，所述TCI状态关联所述参考信号序列的加扰标识ID。
在一种可能的实现方式中，所述TCI状态包括用于指示所述加扰ID的指示信息。
在一种可能的实现方式中，所述TCI状态的指示域关联所述加扰ID。
在一种可能的实现方式中，所述TCI状态包括信道状态参考信号CSI-RS的信息，所述CSI-RS的信息关联所述加扰ID。
在一种可能的实现方式中，所述CSI-RS的信息包括所述CSI-RS的标识和/或所述CSI-RS的加扰信息。
在一种可能的实现方式中，所述TCI状态包括同步信息块SSB的信息，所述SSB的信息关联所述加扰ID。
在一种可能的实现方式中，所述SSB的信息包括以下任一项或多项：所述SSB的频段信息、所述SSB的带宽信息、所述SSB的周期信息、所述SSB的时域信息、所述SSB的物理小区标识或所述SSB的波束信息。
在一种可能的实现方式中，所述TCI状态包括服务小区的标识，所述服务小区的标识关联所述加扰ID。
在一种可能的实现方式中，所述方法还包括：向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述TCI状态是否关联所述参考信号序列。
在一种可能的实现方式中，所述第一指示或所述第二指示信息包含于以下任一项信令中：无线资源控制RRC信令、媒体接入控制MAC控制元素CE信令、下行控制信息DCI。
在一种可能的实现方式中，所述参考信号序列包括解调参考信号DMRS序列。
可理解，关于第二方面的有益效果或相关说明，可以参考第一方面，这里不再详述。
第三方面，本申请实施例提供一种通信装置，用于执行第一方面或第一方面的任意可能的实现方式中的方法；或者，用于执行第二方面或第二方面的任意可能的实现方式中的方法。
在一种可能的实现方式中，该通信装置包括具有执行第一方面、第二方面或任意可能的实现方式中的方法的相应单元。例如，该通信装置可以包括收发单元和处理单元。
示例性的，当该通信装置为终端设备或终端设备中的芯片时，收发单元用于输入第一 指示信息；处理单元用于根据该第一指示信息确定参考信号序列。
示例性的，当通信装置为网络设备或网络设备中的芯片时，处理单元用于确定参考信号序列；收发单元用于输出第一指示信息。
可理解，关于收发单元和处理单元的具体说明，可以参考下文所示的装置实施例，这里先不详述。
第四方面，本申请实施例提供一种通信装置，所述通信装置包括处理器，用于执行上述第一方面或第一方面的任意可能的实现方式所示的方法；或者，用于执行上述第二方面或第二方面的任意可能的实现方式所示的方法。
在执行上述方法的过程中，上述方法中有关发送信息和接收信息的过程，可以理解为由处理器输出上述信息的过程，以及处理器接收输入的上述信息的过程。在输出上述信息时，处理器将该上述信息输出给收发器，以便由收发器进行发射。该上述信息在由处理器输出之后，还可能需要进行其他的处理，然后才到达收发器。类似的，处理器接收输入的上述信息时，收发器接收该上述信息，并将其输入处理器。更进一步的，在收发器收到该上述信息之后，该上述信息可能需要进行其他的处理，然后才输入处理器。
基于上述原理，举例来说，前述方法中提及的发送第一指示信息可以理解为处理器输出第一指示信息。又例如，接收第一指示信息可以理解为处理器接收第一指示信息等。
对于处理器所涉及的发射、发送和接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则均可以更加一般性的理解为处理器输出和接收、输入等操作，而不是直接由射频电路和天线所进行的发射、发送和接收操作。
在实现过程中，上述处理器可以是专门用于执行这些方法的处理器，也可以是执行存储器中的计算机指令来执行这些方法的处理器，例如通用处理器。上述存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(read only memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
在一种可能的实现方式中，存储器位于所述通信装置之外。
在一种可能的实现方式中，存储器位于所述通信装置之内。
本申请实施例中，处理器和存储器还可能集成于一个器件中，即处理器和存储器还可以被集成在一起。
在一种可能的实现方式中，所述通信装置还包括收发器，所述收发器，用于接收信号和/或发送信号。
第五方面，本申请实施例提供一种通信装置，所述通信装置包括逻辑电路和接口，所述逻辑电路和所述接口耦合；
在本申请的一些实施例中，示例性的，所述接口，用于输入第一指示信息，所述逻辑电路，用于根据所述第一指示信息确定参考信号序列。
在一种可能的实现方式中，所述接口，具体用于从第一TRP切换到第二TRP的情况下，输入所述第一指示信息。
在一种可能的实现方式中，所述接口，还用于输入第二指示信息，所述逻辑电路，具体用于根据所述第一指示信息和所述第二指示信息确定所述参考信号序列。
在一种可能的实现方式中，所述逻辑电路，还用于根据所述参考信号序列进行信道估计。
在本申请的另一些实施例中，示例性的，所述逻辑电路，用于确定参考信号序列，所述接口，用于输出第一指示信息。
在一种可能的实现方式中，所述接口，还用于输出第二指示信息。
可理解，关于第一指示信息、第二指示信息、TCI状态以及参考信号序列等的说明可以参考上文第一方面或第二方面的描述，这里不再详述。
第六方面，本申请实施例提供一种计算机可读存储介质，该计算机可读存储介质用于存储计算机程序，当其在计算机上运行时，使得上述第一方面或第一方面的任意可能的实现方式所示的方法被执行；或者，使得上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
第七方面，本申请实施例提供一种计算机程序产品，该计算机程序产品包括计算机程序或计算机代码，当其在计算机上运行时，使得上述第一方面或第一方面的任意可能的实现方式所示的方法被执行；或者，使得上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
第八方面，本申请实施例提供一种计算机程序，该计算机程序在计算机上运行时，上述第一方面或第一方面的任意可能的实现方式所示的方法被执行；或者，上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
第九方面，本申请实施例提供一种无线通信系统，所述无线通信系统包括终端设备和网络设备，所述终端设备用于执行上述第一方面或第一方面的任意一种可能的实现方式，所述网络设备用于执行上述第二方面或第二方面的任意一种可能的实现方式。
附图说明
图1a是本申请实施例提供的一种通信系统的架构示意图；
图1b是本申请实施例提供的一种邻区干扰的场景示意图；
图2a是本申请实施例提供的一种普通小区组网的场景示意图；
图2b是本申请实施例提供的一种超级小区组网的场景示意图；
图3是本申请实施例提供的一种确定参考信号序列的方法流程示意图；
图4至图6是本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等仅用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备等，没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元等，或可选地还包括对于这些过程、方法、产品或设备等固有的其它步骤或单元。
在本文中提及的“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员可以显式 地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”。
本申请提供的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)移动通信系统或新无线接入技术(new radio access technology，NR)。其中，5G移动通信系统可以包括非独立组网(non-standalone，NSA)和/或独立组网(standalone，SA)。以及本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统等。本申请对此不作限定。
本申请提供的技术方案还可以应用于机器类通信(machine type communication，MTC)、机器间通信长期演进技术(Long Term Evolution-machine，LTE-M)、设备到设备(device-todevice，D2D)网络、机器到机器(machine to machine，M2M)网络、物联网(internet of things，IoT)网络或者其他网络。其中，IoT网络例如可以包括车联网。其中，车联网系统中的通信方式统称为车到其他设备(vehicle to X，V2X，X可以代表任何事物)，例如，该V2X可以包括：车辆到车辆(vehicle to vehicle，V2V)通信，车辆与基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。
以下对本申请示出的网络设备和终端设备进行描述。
网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WiFi)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource  control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、介质接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
网络设备为小区提供服务，终端设备通过网络设备分配的传输资源(例如，频域资源，或者说，频谱资源，时频资源等)与小区进行通信，该小区可以属于宏基站(例如，宏eNB或宏gNB等)，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
在本申请实施例中，终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例可以为：手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑(如笔记本电脑、掌上电脑等)、移动互联网设备(mobile internet device，MID)、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等。
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备。IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络 连接，从而实现人机互连，物物互连的智能化网络。IoT技术可以通过例如窄带(narrow band，NB)技术，做到海量连接，深度覆盖，终端省电。
此外，终端设备还可以包括智能打印机、火车探测器、加油站等传感器，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。
图1a是本申请实施例提供的通信系统100的示意图。如图1a所示，该通信系统100可以包括至少一个网络设备，如图1a所示的网络设备101，以及该通信系统100还可以包括至少一个终端设备，如图1a所示的终端设备102至107。其中，该终端设备102至107可以是移动的或固定的。网络设备101和终端设备102至107中的一个或多个均可以通过无线链路通信。每个网络设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备通信。例如，网络设备可以向终端设备发送指示信息，终端设备可以基于该指示信息确定DMRS序列，以及根据该DMRS序列进行信道估计等等。因此，图1a中的网络设备101和终端设备102至107构成一个通信系统。
可选地，终端设备之间可以直接通信。例如可以利用D2D技术等实现终端设备之间的直接通信。如图1a所示，终端设备105与106之间、终端设备105与107之间，可以利用D2D技术直接通信。终端设备106和终端设备107可以单独或同时与终端设备105通信。
终端设备105至107也可以分别与网络设备101通信。例如可以直接与网络设备101通信，如终端设备105和107可以直接与网络设备101通信。或者，也可以间接地与网络设备101通信，如终端设备107经由终端设备105与网络设备101通信。
应理解，图1a示例性地示出了一个网络设备和多个终端设备，以及各通信设备之间的通信链路。可选地，该通信系统100可以包括多个网络设备，并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，例如更多或更少的终端设备。本申请对此不做限定。
上述各个通信设备，如图1a中的网络设备101、终端设备102至107，可以配置多个天线。该多个天线可以包括至少一个用于发送信号的发射天线和至少一个用于接收信号的接收天线。另外，各通信设备还附加地包括发射机链和接收机链，本领域普通技术人员可以理解，它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。因此，网络设备与终端设备之间可通过多天线技术通信。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例不限于此。
可理解，对于本申请提供的确定参考信号序列的方法适用的通信系统，下文不再赘述。
本申请实施例中的通信系统可通过协作多点传输(coordinated multi-point，CoMP)技术为同一终端设备提供下行服务，或者接收同一终端设备的上行信号，从而解决终端设备在多个小区之间受到的干扰。其中，协作多点传输技术也可称为多站协作传输。
例如，如图1b所示，虚线表示邻区对终端设备的干扰，实线表示本小区的有用信号，可见，处于小区边缘的用户设备(user equipment，UE)，接收本小区的有用信号时会受到邻区的干扰。为了解决该干扰问题，一种场景，CoMP技术可采用动态点选择/动态小区选择(dynamic cell selection/dynamic point selection，DCS/DPS)，即网络侧动态选择更好的传输接入点(transmission access point，TRP)，为UE服务。DCS/DPS中， 每个UE的TRP是动态选择的，针对UE2，TRP1的信号强于TRP2的信号时，UE2的TRP可动态的从TRP2切换为TRP1，以保证UE2是在更强的小区信号下，而让较弱的小区信号成为干扰，从而利用两个小区之间TRP到UE的信道的差异，提高UE的信号信干噪比。
可理解，图1b示出的CoMP技术仅为本申请示出的一种TRP切换的场景，对于TRP切换的其他场景，本申请同样适用。
QCL关系用于描述两个天线端口是否具有准共址的关系。两个天线端口之间具有准共址QCL关系，指的是，一个天线端口对应的一个符号上的信号经历的信道大尺度参数可以通过在另一个天线端口得到的信道大尺度参数而获得。信道大尺度参数可以包括以下一项或多项：平均增益(average gain)、平均时延(average delay)、时延扩展(delay spread)、多普勒偏移(Doppler shift)、多普勒扩展(Doppler spread)、空间参数(spatial parameter)。
其中，空间参数可以包括以下一项或多项参数：入射角(angle of arrival，AoA)、主(Dominant)入射角AoA、平均入射角、入射角的功率角度谱(power angular spectrum，PAS)、发射角(angle of departure，AOD)、主发射角(Dominant AoD)、平均发射角(average AoD)、到达角(angle of arrival，AOA)、主到达角(Dominant AoA)、平均到达角(average AoA)、信道相关矩阵、到达角的功率角度扩展谱、出发角的功率角度扩展谱、发射信道相关性、接收信道相关性、发射波束成型、接收波束成型、空间信道相关性、空间滤波器、空间滤波参数、空间接收参数(spatial Rx parameters)等。
目前标准定义了四种类型的QCL关系，不同类型的QCL关系的信道大尺度参数也不同，例如：
A类型的QCL关系(QCL Type A)：Doppler shift，Doppler spread，average delay，delay spread；
B类型的QCL关系(QCL Type B)：Doppler shift，Doppler spread；
C类型的QCL关系(QCL Type C)：average delay，Doppler shift；
D类型的QCL关系(QCL Type D)：Spatial Rx parameter。
其中，Doppler shift可译为多普勒偏移、多普勒频移或多普勒频偏。
由于不同的TRP在地理上的位置可能不同，或者不同的TRP在同一位置但是面向UE的方向不同(比如说一个站点上面向不同方向的天线面板各为一个TRP)，而不同的TRP发送的信号，所经历的传播路径也不同。因此，不同TRP发送给一个UE的信号，它们经历的信道平均增益(比如路径损耗)、平均时延、时延扩展、多普勒频移、多普勒扩展、空间参数(如对应UE的接收波束)等，是可能不同的。因此，可以认为不同TRP发送的天线端口之间应当是非准共址的关系，而同一个TRP的天线端口之间可以是准共址的关系。
所以，在协作场景下，需要给UE指示准共址相关的信息。比如说TRP#1、TRP#2分别给UE发送CSI-RS#1、CSI-RS#2(可以用于时频跟踪、用于CSI测量等)，当网络设备认为TRP#1发给UE的信号性能比较好的时候，网络设备可以通过选择令TRP#1发送数据PDSCH，这样就需要指示给UE，让UE知道PDSCH的天线端口与CSI-RS#1的天线端口是QCL的。这种指示信息，就可以通过TCI状态来完成。换句话说，由于不同TRP的信道大尺度参数不同，因此，在终端设备切换TRP时，网络设备需要向终端设备指示TCI状态，从而来指示 信号(天线端口)之间的QCL关系。
比如说，TCI sate1中可以包含了CSI-RS资源标识1，以及其关联的信道大尺度参数类型A，然后将TCI state1配置给PDSCH。那么含义就是，PDSCH的DMRS天线端口与CSI-RS 1的CSI-RS天线端口之间具有关于多普勒偏移、多普勒扩展、平均时延、时延扩展的天线端口信息。也就是说，在CSI-RS 1的CSI-RS天线端口上所得到的多普勒偏移、多普勒扩展、平均时延、时延扩展等信息，可以用于PDSCH的DMRS，从而帮助DMRS信道估计以及PDSCH解调。
示例性的，TCI状态中可以包括TCI状态的标识和/或QCL信息的配置。该TCI state的标识，如上文示出的TCI state#1，#2等。该QCL信息的配置可以包含一个或多个QCL信息的配置。
其中，一个QCL信息可以包括以下任一项或多项：
参考信号的信息，如用于指示CSI-RS的标识和/或SSB的标识的信息。
QCL类型，如上文列举的typeA～typeD。
小区信息，如服务小区标识，该服务小区标识可以用于标识参考信号是来自哪个服务小区的。
带宽部分(bandwidth part，BWP)信息，如BWP标识，该BWP标识可以用于标识参考信号是来自哪个BWP的。
可理解，除了上述示出的TCI状态，在本申请提供的方法中，该TCI状态还可以包括其他信息。该其他信息可以包括以下任一项或多项：
1、非小区信息
该非小区信息可以包括：非服务小区的小区标识、非服务小区的物理小区标识、测量对象(measurement object，MO)的标识中的任一项或多项等。该MO的标识可以包括MO的物理小区标识和/或MO的频段信息等。
2、SSB的信息
该SSB的信息可以为与SSB相关的信息。示例性的，SSB的信息可以包括以下任一项或多项：SSB的频段信息、SSB的带宽信息、SSB的周期信息、SSB的帧信息、SSB的物理小区标识、SSB的波束信息。
其中，SSB的频段信息可以表示该SSB的中心频点所对应的频点位置。该SSB的帧信息可以包括该SSB的无线帧信息、该SSB的系统帧信息或该SSB的子帧信息等。
3、参考信号的类型
该TCI状态中除了可以配置CSI-RS和SSB之外，还可以配置PDCCH的DMRS、PDSCH的DMRS、SRS、RACH、PUCCH的DMRS、PUSCH的DMRS、定位参考信号等。
通过在TCI状态中包括更多的信息，可以使得本申请下文提供的方案所适用的场景范围更广，还能够保证UE在多TRP间灵活移动。
以上详细描述了QCL与TCI状态的关系，以下将详细描述TCI域。
TCI域为信令中的字段的取值，该字段可以用于指示TCI状态。换句话说，终端设备能够基于该TCI域指示的TCI状态，获知所接收到的PDSCH的DMRS的信道大尺度参数，进而基于信道估计，解调出PDSCH。
可选的，TCI状态也可以不通过DCI指示，如可以通过RRC配置，或MAC CE指示，或 MAC CE和DCI联合确定等方式得到。
示例性的，对于PDSCH，可以通过RRC信令配置多个TCI状态，然后在MAC-CE信令中选中其中部分状态，再通过DCI指示MAC-CE所选中的部分状态中的一个或多个，用于PDSCH接收。这个DCI中指示的域可以被称为TCI指示域。
例子：RRC信令中配置TCI状态#1～#128(如128个TCI状态)。然后，MAC-CE信令指示了该RRC信令中的8个TCI状态，对应了DCI的3bit的状态，如MAC-CE信令中指示了TCI#1，#3……，#20。TCI#1对应DCI的指示值可以为000，TCI#3对应DCI的指示值可以为001，……，TCI#20对应DCI的指示值可以为111。
除了上述示出的3bit的指示域，本申请提供的方法中，该TCI域的比特数还可以有如下特点：
A、TCI域的比特数还可以为1bit、2bit或0bit等。
示例性的，针对一个终端设备来说，该TCI域的比特数可以有不同的配置。同时，不同的终端设备，该TCI域的比特数也可以不同。由此，该TCI域的比特数可以适应终端设备的不同状态。例如，终端设备移动速度较快的情况下，该TCI域的比特数可以配置为第一值(如3bit或2bit或4bit等)，从而，可以为该终端设备配置更多的TCI切换指示。又例如，终端设备移动速度较慢的情况下，该TCI域的比特数可以配置为第二值(如1bit或2bit等)，从而，可以为该终端设备配置较少的TCI切换指示。这里所示的第一值可以大于或等于第二值等，本申请对于该第一值或第二值的具体取值不作限定。
B、DCI中可以包括多个终端设备的TCI状态的指示信息。同时，每个终端设备的TCI域的比特数可以不同，也可以相同(即每个UE可以分别对应一个TCI域)等，本申请对此不作限定。示例性的，多个UE的TCI指示可以在同一DCI中，各个UE的TCI指示域的大小可以是可变的。如在一个DCI中存在对多个UE的TCI指示域，其中一些UE的TCI域为2bit，另一些UE的TCI域为3bit。
通过该种实现方式，可以适应终端设备的不同状态，比如不同的UE可能有不同的移动速度，由此，通过配置不同的TCI域的比特数，可以适应不同UE的TCI切换指示的需求。
C、DCI中可以包括多个终端设备的TCI状态的指示信息。同时，该多个终端设备可以对应同一个TCI域。该情况下，尽管该TCI域的比特数是固定的，但是对于不同终端设备来说，不同的终端设备可以分别读取该TCI域中的部分比特。也就是说，终端设备可以只使用该TCI域中的部分比特，或者，只使用该TCI域中的部分激活状态等。例如，UE1、UE2都读取同一DCI中TCI域的取值，该TCI域域激活了4个TCI状态，如UE1可以只用第一个TCI状态，UE2只用第二个TCI状态；又如UE1可以只使用前两个TCI状态，UE2可以只使用后两个TCI状态等。不同终端设备具体使用哪个TCI状态或该TCI域中的哪些比特，可以由网络设备配置或该网络设备根据终端设备上报的能力信息确定等，本申请对此不作限定。
通过该种实现方式，如多个终端设备均是从TRP1迁移到TRP2时，通过一个DCI就可以向该多个终端设备指示TCI状态。
图2a是本申请实施例提供的一种通信系统的场景示意图。图2a中，UE可以在不同的小区间移动，不同的小区有不同的小区物理ID。同时，UE在不同的小区间移动的时候需 要进行小区切换(handover)过程。然而，频繁的切换可能会导致UE的体验感下降，因此，图2b示出的一种超级小区(Hypercell)组网的场景示意图。图2b中，多个小区可以进行小区合并，如多个物理小区在逻辑上可以属于同一小区。由此，UE在小区间移动的时候，可以不需要进行高层的小区切换过程，能够有效改善UE掉话的现象。HyperCell是一种可以将多个物理小区(如TRP)合并为一个逻辑小区的组网技术。UE在不同TRP之间移动时，不需要进行切换，不感知小区边界，可以提高高速移动用户体验。
示例性的，当UE1在TRP1(也可以称为第一TRP)的覆盖范围内时，该UE1与该TRP1内的UE是码分复用的。换句话说，当UE1在TRP1的覆盖范围内时，该UE1与该TRP1内的UE使用的是不同的正交码，且该UE1与该TRP1内的UE使用的是相同的序列(sequence，或称为sequence generation)。从而，该UE1与该TRP1内的UE使用的是正交的参考信号序列。
然而，当UE1从TRP1的覆盖范围移动到TRP2(也可以称为第二TRP)的覆盖范围时，如果该UE1无法快速知道TRP2内的参考信号序列，则该UE1仍然与TRP1内的UE是正交的，但是该UE1与TRP2内的UE可能就是非正交的。由此，该UE1就与TRP2内的UE之间存在较大干扰。
鉴于此，本申请提供一种确定参考信号序列的方法及装置，能够保证终端设备及时获得参考信号序列，改善终端设备与其TRP内的UE的干扰情况。同时，在终端设备进行TRP切换时，该终端设备的TCI状态也需要重新配置，因此，本申请提供的技术方案，可以有效通过该TCI状态来指示参考信号序列。
图3是本申请实施例提供的一种确定参考信号序列的方法，如图3所示，该方法包括：
301、网络设备确定参考信号序列。
本申请实施例中，该参考信号序列可以包括DMRS序列、探测参考信号(sounding reference signal，SRS)序列等，本申请实施例对此不作限定。示例性的，该参考信号序列还可以包括物理上行控制信道(physical uplink control channel，PUCCH)的序列、PUCCH的DMRS序列、物理随机接入信道(physical random access channel，PRACH)的序列、PDSCH的DMRS序列、PDCCH的DMRS序列或物理上行共享信道(physical uplink shared channel，PUSCH)的DMRS序列、CSI-RS的序列中的任一项或多项等，本申请实施例对于该参考信号序列不作限定。但凡终端设备切换TRP时，需要切换的序列都落入本申请的保护范围。为便于描述，下文将以参考信号序列包括DMRS序列为例说明本申请实施例提供的方法。
示例性的，网络设备可以确定加扰ID，然后根据该加扰ID确定DMRS序列。示例性的，加扰ID与DMRS序列的关系如：可以根据加扰ID得到序列的初始化种子，然后根据初始化种子和随机序列生成一串序列。
该初始化种子的生成方法如下所示：
Figure PCTCN2020135960-appb-000001
根据初始化种子获得随机序列的方法，本申请实施例不作限定。示例性的，如c(i)(如下所示的c(2n)或c(2n+1))是一个伪随机序列，其是通过上述公式的随机化种子得到的。
根据c(i)获得DMRS序列的方式如下所示：
Figure PCTCN2020135960-appb-000002
可理解，这里所示的加扰ID与DMRS序列的关系仅为示例，在具体实现中，网络设备还可以根据其他参数确定参考信号序列等，本申请实施例对此不作限定。这里，其他参数可以是生成随机化种子中用到的其他因素，包括了
Figure PCTCN2020135960-appb-000003
(一个slot时隙中的符号个数)、
Figure PCTCN2020135960-appb-000004
(slot序号)、l(符号序号)、
Figure PCTCN2020135960-appb-000005
(由加扰ID得到，比如说可以等于加扰ID。)
可理解，本申请实施例示出的参考信号序列还可以理解为导频序列等，本申请实施例对其名称不作限定。
302、网络设备向终端设备发送第一指示信息，该第一指示信息用于指示TCI状态，该TCI状态关联参考信号序列。对应的，终端设备接收该第一指示信息。
在一种可能的实现方式中，上述第一指示信息可以包含于RRC信令、MAC CE信令或DCI中的任一项中。例如，上述第一指示信息可以位于上述RRC信令中的第一字段，即该第一字段可以用于承载第一指示信息。又例如，第一指示信息可以位于MAC CE信令中的第二字段，即该第二字段可以用于承载第一指示信息。又例如，第一指示信息可以位于DCI中的第三字段，即该第三字段可以用于承载第一指示信息。本申请实施例对于该第一指示信息包含于何种信令中，不作限定。
本申请实施例中，该TCI状态通过关联DMRS序列，终端设备可以根据该TCI状态确定DMRS序列。又例如，该TCI状态还可以关联该DMRS序列的加扰ID(scrambing ID)，由此，终端设备可以根据该加扰ID确定DMRS序列。示例性的，该TCI状态还可以关联CSI-RS的加扰信息、PDSCH的加扰信息。
该TCI状态关联DMRS序列可以理解为与TCI状态相关的信息关联DMRS序列。对于该TCI状态关联DMRS序列的具体说明，可以分别如下所示：
第一种，该TCI状态包括用于指示DMRS序列的指示信息。或者，该TCI状态包括用于指示加扰ID的指示信息。换句话说，该TCI状态的配置中可以包括用于指示DMRS序列的指示信息；或者，该TCI状态的配置中包括用于指示加扰ID的指示信息。
通过在TCI状态中配置用于指示DMRS序列(或加扰ID)的指示信息，可以使得终端设备明确获知其在切换后的TRP内使用的DMRS序列，且实施方式简单。
可理解，为便于描述，下文将以TCI状态关联加扰ID为例说明本申请实施例提供的方法。
第二种，TCI状态的指示域关联加扰ID。或者，该TCI状态的指示域关联加扰ID可以理解为RRC信令中第一字段的取值关联加扰ID；或者，MAC CE信令中第二字段的取值关联加扰ID；或者，DCI中第三字段的取值关联加扰ID。该情况下，该第一字段、第二字段或第三字段即为TCI状态的指示域。
示例性的，RRC信令中可以配置TCI#1至TCI#128，MACCE信令可以配置该128个TCI状态中的8个，由此，DCI可以通过3个比特(bit)指示该8个TCI状态。这里所示的DCI中用于指示TCI状态的域即可以理解为TCI指示域。
例如，该8个TCI状态分别为TCI#1至TCI#8，TCI#1对应的3个bit为000，TCI#2对应的3个bit为001，以此类推，TCI#8对应的3个bit为111。由此，本申请实施例中，可以通过该000至111关联加扰ID。可理解，这里所示的000对应TCI#1，001对应TCI#1等，仅为示例，在具体实现中，000至111还可以对应其他TCI状态，本申请实施例对此 不作限定。例如，000至111还可以依次对应TCI#1、TCI#3、TCI#5、CTI#7、TCI#9、TCI#11、TCI#13、TCI#15等。也就是说，TCI状态的指示域对应的TCI状态可能会发生变化，但是，本申请实施例不是通过TCI状态(如TCI#1、TCI#2等)关联加扰ID，而是通过该TCI状态的指示域关联加扰ID。举例来说，DCI中可以通过3个比特指示8个TCI状态，该8个TCI状态可以为TCI#1至TCI#128中的任意8个TCI状态，但是，该3个比特的取值只能是000至111。
终端设备通过该TCI域不仅可以获得TCI状态，还可以获得该TCI域所指示的加扰ID。例如，终端设备不仅可以获得TCI状态，还能够获得切换后的TRP(即第二TRP)对应的参考信号序列。从而在不增加信令开销的前提下，使得终端设备能够及时获得切换后的TRP对应的参考信号序列。
第三种，TCI状态包括CSI-RS的信息，该CSI-RS的信息关联加扰ID。如TCI状态中配置的CSI-RS的信息可以用于关联加扰ID。例如，CSI-RS的标识可以用于关联加扰ID；或者，CSI-RS的加扰信息可以用于关联加扰ID。如TCI状态中配置的CSI-RS的加扰信息可以为DMRS序列的加扰ID。可选的，还可以将CSI-RS的加扰信息作为DMRS序列的加扰信息。
第四种，TCI状态包括SSB的信息，该SSB的信息关联加扰ID。如TCI状态中配置的SSB的信息可以用于关联加扰ID。该SSB的信息包括以下任一项或多项：SSB的频段信息、SSB的带宽信息、SSB的周期信息、SSB的时域信息、SSB的物理小区标识或SSB的波束信息。
第五种，TCI状态包括服务小区的标识，该服务小区的标识关联加扰ID。也就是说，该TCI状态包括用于指示服务小区的标识的信息。或者，该TCI状态配置的服务小区的标识关联加扰ID。
本申请实施例中，通过TCI状态中可以包括的信息来关联加扰ID，终端设备不仅可以获得切换后的TCI状态的相关信息，还能够获得切换后的TRP对应的参考信号序列，在不增加信令开销的基础上，有效保证了终端设备使用切换后的TRP对应的参考信号序列，从而保证终端设备能够与切换后的TRP内的终端设备之间的DMRS序列保持正交，改善该终端设备与切换后的TRP内的终端设备的干扰情况。
303、终端设备根据第一指示信息确定参考信号序列。
示例性的，终端设备可以根据加扰ID确定DMRS序列。对于加扰ID确定DMRS序列的方法可以上文所示，这里不再详述。
在一种可能的实现方式中，图3所示的方法还包括：
终端设备接收来自网络设备的第二指示信息，该第二指示信息用于TCI状态是否关联加扰ID。由此，上述步骤303包括终端设备根据第一指示信息和第二指示信息确定参考信号序列。
示例性的，该第二指示信息与该第一指示信息可以包含于同一个信令中。如该第二指示信息可以与第一指示信息均包含于RRC信令、MAC CE信令或DCI中的任一项中。或者，该第二指示信息还可以与第一指示信息包含于不同信令中。这里所示的不同信令可以理解为不同类型的信令，如第二指示信息包含于MAC CE信令中，第一指示信息包含于DCI中。或者，这里所示的不同信令还可以理解为同一种类型的不同信令中，如第二指示信息包含于第一DCI中，第一指示信息包含于第二DCI中。本申请实施例对于第一指示信息和第二 指示信息是否位于同一个信令中，不作限定。
在一种可能的实现方式中，DCI中的第四字段可以用于指示TCI状态是否关联加扰ID。当该第四字段的取值为第一值(如0)时，则该第一值可以表示TCI状态关联加扰ID。但是，具体通过该TCI状态配置的哪些信息关联加扰ID，终端设备可以通过第一指示信息确定。当第四字段的取值为第二值(如1)时，该第二值可以用于表示TCI状态不关联加扰ID。该情况下，终端设备可以使用TRP1内的DMRS序列进行信道估计等。或者，该终端设备还可以使用预先配置的加扰ID确定DMRS序列等，本申请实施例对此不作限定。可理解，这里所示的第一值或第二值即可以理解为上述第二指示信息。
可理解，第二指示信息位于RRC信令或MAC CE信令的具体说明，可以参考第二指示信息位于DCI的说明，这里不再详述。
在另一种可能的实现方式中，第二指示信息可以为TCI状态的指示域。也就是说，TCI状态的指示域可以用于指示TCI状态是否关联加扰ID。例如，TCI状态的指示域为000时，终端设备可以使用TCI状态关联的加扰ID。TCI状态的指示域为100时，TCI状态不关联加扰ID。
在一种可能的实现方式中，图3所示的方法还包括：
304、终端设备根据参考信号序列进行信道估计。
或者，终端设备还可以根据参考信号序列进行时频跟踪、信道测量等，本申请实施例对于该参考信号序列的作用不作限定。
以下简单介绍根据参考信号序列进行信道估计、时频跟踪或信道测量的方法。对于具体方法还可以参考相关标准或协议等，本申请实施例对此不作限定。
示例性的，信道估计：终端设备对接收到的DMRS信号，通过基于最小误差均方差等算法进行估计到信道。
时频跟踪：终端设备可以对接收到的参考信号，根据参考信号序列，估计出时域或者是频域的偏差，进行校正，从而达到时频跟踪的效果。
信道测量：终端设备可以对接收到的参考信号，根据参考信号序列，得到信道，然后测量出信道的一些参数，如信道的秩、相位等。
本申请实施例中，通过TCI状态关联参考信号序列，终端设备可以根据该TCI状态获得参考信号序列。从而终端设备可以利用该参考信号序列进行信道估计等。
以下将介绍本申请实施例提供的通信装置。
本申请根据上述方法实施例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面将结合图4至图6详细描述本申请实施例的通信装置。
图4是本申请实施例提供的一种通信装置的结构示意图，如图4所示，该通信装置包括处理单元401和收发单元402。
在本申请的一些实施例中，该通信装置可以是上文示出的终端设备或终端设备中的芯片等。即该通信装置可以用于执行上文方法实施例中由终端设备执行的步骤或功能等。
例如，收发单元402，用于输入第一指示信息，该第一指示信息用于指示TCI状态，该 TCI状态关联参考信号序列；
处理单元401，用于根据该第一指示信息确定参考信号序列。
本申请实施例中，收发单元402，用于输入第一指示信息包括：收发单元402，用于接收来自网络设备的第一指示信息。
在一种可能的实现方式中，参考信号序列包括DMRS序列，处理单元401，还用于根据该DMRS序列进行信道估计。
在一种可能的实现方式中，收发单元402，具体用于从第一TRP切换到第二TRP的情况下，输入第一指示信息。
在一种可能的实现方式中，收发单元402，还用于输入第二指示信息；处理单元401，具体用于根据第一指示信息和第二指示信息确定参考信号序列。
本申请实施例中，收发单元402，用于输入第二指示信息包括：收发单元402，用于接收来自网络设备的第二指示信息。
本申请实施例中，关于第一指示信息、TCI状态、参考信号序列、加扰ID、TCI域、CSI-RS的信息、SSB的信息以及第二指示信息的说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
可理解，本申请实施例示出的收发单元和处理单元的具体说明仅为示例，对于收发单元和处理单元的具体功能或执行的步骤等，可以参考上述方法实施例，这里不再详述。示例性的，该收发单元402还可以用于执行图3所示的步骤302中的接收步骤，处理单元401还可以用于执行图3所示的步骤303。示例性的，处理单元401还可以用于执行图3所示的步骤304等。
复用图4，在本申请的另一些实施例中，该通信装置可以是上文示出的网络设备或网络设备中的芯片等。即该通信装置可以用于执行上文方法实施例中由网络设备执行的步骤或功能等。
例如，处理单元401，用于确定参考信号序列；
收发单元402，用于输出第一指示信息。
在一种可能的实现方式中，收发单元402，还用于输出第二指示信息。
本申请实施例中，收发单元402，用于输出第一指示信息包括：收发单元402，用于向终端设备发送第一指示信息。收发单元402，用于输出第二指示信息包括：收发单元402，用于向终端设备发送第二指示信息。
本申请实施例中，关于第一指示信息、TCI状态、参考信号序列、加扰ID、TCI域、CSI-RS的信息、SSB的信息以及第二指示信息的说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
可理解，本申请实施例示出的收发单元和处理单元的具体说明仅为示例，对于收发单元和处理单元的具体功能或执行的步骤等，可以参考上述方法实施例，这里不再详述。示例性的，该处理单元401还可以用于执行图3所示的步骤301，收发单元402还可以用于执行图3所示的步骤302中的发送步骤。
以上介绍了本申请实施例的网络设备和终端设备，以下介绍所述网络设备和终端设备可能的产品形态。应理解，但凡具备上述图4所述的网络设备的功能的任何形态的产品，或者，但凡具备上述图4所述的终端设备的功能的任何形态的产品，都落入本申请实施例的保护范围。还应理解，以下介绍仅为举例，不限制本申请实施例的网络设备和终端设备 的产品形态仅限于此。
在一种可能的实现方式中，图4所示的通信装置中，处理单元401可以是一个或多个处理器，收发单元402可以是收发器，或者收发单元402还可以是发送单元和接收单元，发送单元可以是发送器，接收单元可以是接收器，该发送单元和接收单元集成于一个器件，例如收发器。本申请实施例中，处理器和收发器可以被耦合等，对于处理器和收发器的连接方式，本申请实施例不作限定。
如图5所示，该通信装置50包括一个或多个处理器520和收发器510。
示例性的，当该通信装置用于执行上述终端设备执行的步骤或方法或功能时，收发器510，用于接收来自网络设备的第一指示信息；处理器520，用于根据第一指示信息确定参考信号序列。又例如，处理器520，还用于根据DMRS序列进行信道估计。又例如，收发器510，还用于接收来自网络设备的第二指示信息。又例如，收发器510，具体用于从第一TRP切换到第二TRP的情况下，接收来自网络设备的第一指示信息。
示例性的，当该通信装置用于执行上述网络设备执行的步骤或方法或功能时，处理器520，用于确定参考信号序列，收发器510，用于向终端设备发送第一指示信息。又例如，收发器510，还用于向终端设备发送第二指示信息。
本申请实施例中，关于第一指示信息、TCI状态、参考信号序列、加扰ID、TCI域、CSI-RS的信息、SSB的信息以及第二指示信息的说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
可理解，对于处理器和收发器的具体说明还可以参考图4所示的处理单元和收发单元的介绍，这里不再赘述。
在图5所示的通信装置的各个实现方式中，收发器可以包括接收机和发射机，该接收机用于执行接收的功能(或操作)，该发射机用于执行发射的功能(或操作)。以及收发器用于通过传输介质和其他设备/装置进行通信。
可选的，通信装置50还可以包括一个或多个存储器530，用于存储程序指令和/或数据。存储器530和处理器520耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器520可能和存储器530协同操作。处理器520可可以执行存储器530中存储的程序指令。可选的，上述一个或多个存储器中的至少一个可以包括于处理器中。
本申请实施例中不限定上述收发器510、处理器520以及存储器530之间的具体连接介质。本申请实施例在图5中以存储器530、处理器520以及收发器510之间通过总线540连接，总线在图5中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图5中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成等。
本申请实施例中，存储器可包括但不限于硬盘(hard disk drive，HDD)或固态硬盘 (solid-state drive，SSD)等非易失性存储器，随机存储记忆体(Random Access Memory，RAM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、只读存储器(Read-Only Memory，ROM)或便携式只读存储器(Compact Disc Read-Only Memory，CD-ROM)等等。存储器是能够用于携带或存储具有指令或数据结构形式的程序代码，并能够由计算机(如本申请示出的通信装置等)读和/或写的任何存储介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
可理解，当图5所示的通信装置用于执行终端设备执行的步骤或功能，处理器520主要用于对通信协议以及通信数据进行处理，以及对整个通信装置进行控制，执行软件程序，处理软件程序的数据。存储器530主要用于存储软件程序和数据。收发器510可以包括控制电路和天线，控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当通信装置开机后，处理器520可以读取存储器530中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器520对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到通信装置时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器520，处理器520将基带信号转换为数据并对该数据进行处理。
在另一种实现中，所述的射频电路和天线可以独立于进行基带处理的处理器而设置，例如在分布式场景中，射频电路和天线可以与独立于通信装置，呈拉远式的布置。
可理解，本申请实施例示出的通信装置还可以具有比图5更多的元器件等，本申请实施例对此不作限定。以上所示的处理器和收发器所执行的方法仅为示例，对于该处理器和收发器具体所执行的步骤可参照上文介绍的方法。
在另一种可能的实现方式中，图4所示的通信装置中，处理单元401可以是一个或多个逻辑电路，收发单元402可以是输入输出接口，又或者称为通信接口，或者接口电路，或接口等等。或者收发单元402还可以是发送单元和接收单元，发送单元可以是输出接口，接收单元可以是输入接口，该发送单元和接收单元集成于一个单元，例如输入输出接口。如图6所示，图6所示的通信装置包括逻辑电路601和接口602。即上述处理单元901可以用逻辑电路601实现，收发单元902可以用接口602实现。其中，该逻辑电路601可以为芯片、处理电路、集成电路或片上系统(system on chip，SoC)芯片等，接口602可以为通信接口、输入输出接口等。本申请实施例中，逻辑电路和接口还可以相互耦合。对于逻辑电路和接口的具体连接方式，本申请实施例不作限定。
示例性的，当通信装置用于执行上述终端设备执行的方法或功能或步骤时，接口602，用于输入第一指示信息，该第一指示信息用于指示TCI状态，该TCI状态关联参考信号序列；
逻辑电路601，用于根据该第一指示信息确定参考信号序列。
在一种可能的实现方式中，参考信号序列包括DMRS序列，逻辑电路601，还用于根据该DMRS序列进行信道估计。
在一种可能的实现方式中，接口602，具体用于从第一TRP切换到第二TRP的情况下， 输入第一指示信息。
在一种可能的实现方式中，接口602，还用于输入第二指示信息；逻辑电路601，具体用于根据第一指示信息和第二指示信息确定参考信号序列。
示例性的，当通信装置用于执行上述网络设备执行的方法或功能或步骤时，逻辑电路601，用于确定参考信号序列；接口602，用于输出第一指示信息。
在一种可能的实现方式中，接口602，还用于输出第二指示信息。
本申请实施例中，关于第一指示信息、TCI状态、参考信号序列、加扰ID、TCI域、CSI-RS的信息、SSB的信息以及第二指示信息的说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
可理解，本申请实施例示出的通信装置可以采用硬件的形式实现本申请实施例提供的方法，也可以采用软件的形式实现本申请实施例提供的方法等，本申请实施例对此不作限定。
对于图6所示的各个实施例的具体实现方式，还可以参考上述各个实施例，这里不再详述。
本申请实施例还提供了一种无线通信系统，该无线通信系统包括网络设备和终端设备，该网络设备和该终端设备可以用于执行前述任一实施例(如图3)中的方法。
此外，本申请还提供一种计算机程序，该计算机程序用于实现本申请提供的方法中由网络设备执行的操作和/或处理。
本申请还提供一种计算机程序，该计算机程序用于实现本申请提供的方法中由终端设备执行的操作和/或处理。
本申请还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机代码，当计算机代码在计算机上运行时，使得计算机执行本申请提供的方法中由网络设备执行的操作和/或处理。
本申请还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机代码，当计算机代码在计算机上运行时，使得计算机执行本申请提供的方法中由终端设备执行的操作和/或处理。
本申请还提供一种计算机程序产品，该计算机程序产品包括计算机代码或计算机程序，当该计算机代码或计算机程序在计算机上运行时，使得本申请提供的方法中由网络设备执行的操作和/或处理被执行。
本申请还提供一种计算机程序产品，该计算机程序产品包括计算机代码或计算机程序，当该计算机代码或计算机程序在计算机上运行时，使得本申请提供的方法中由终端设备执行的操作和/或处理被执行。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络 单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例提供的方案的技术效果。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个可读存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的可读存储介质包括：U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (52)

  1. 一种确定参考信号序列的方法，其特征在于，所述方法包括：
    接收来自网络设备的第一指示信息，所述第一指示信息用于指示传输配置指示TCI状态，所述TCI状态关联所述参考信号序列；
    根据所述第一指示信息确定所述参考信号序列。
  2. 根据权利要求1所述的方法，其特征在于，所述TCI状态关联所述参考信号序列的加扰标识ID。
  3. 根据权利要求1或2所述的方法，其特征在于，所述参考信号序列包括解调参考信号DMRS序列，所述方法还包括：
    根据所述DMRS序列进行信道估计。
  4. 根据权利要求2或3所述的方法，其特征在于，所述TCI状态包括用于指示所述加扰ID的指示信息。
  5. 根据权利要求2或3所述的方法，其特征在于，所述TCI状态的指示域关联所述加扰ID。
  6. 根据权利要求2或3所述的方法，其特征在于，所述TCI状态包括信道状态参考信号CSI-RS的信息，所述CSI-RS的信息关联所述加扰ID。
  7. 根据权利要求6所述的方法，其特征在于，所述CSI-RS的信息包括所述CSI-RS的标识和/或所述CSI-RS的加扰信息。
  8. 根据权利要求2或3所述的方法，其特征在于，所述TCI状态包括同步信息块SSB的信息，所述SSB的信息关联所述加扰ID。
  9. 根据权利要求8所述的方法，其特征在于，所述SSB的信息包括以下任一项或多项：
    所述SSB的频段信息、所述SSB的带宽信息、所述SSB的周期信息、所述SSB的时域信息、所述SSB的物理小区标识或所述SSB的波束信息。
  10. 根据权利要求2或3所述的方法，其特征在于，所述TCI状态包括服务小区的标识，所述服务小区的标识关联所述加扰ID。
  11. 根据权利要求1-10任一项所述的方法，其特征在于，所述根据所述第一指示信息确定所述参考信号序列之前，所述方法还包括：
    接收来自所述网络设备的第二指示信息，所述第二指示信息用于指示所述TCI状态是否关联所述参考信号序列；
    根据所述第一指示信息确定所述参考信号序列，包括：
    根据所述第一指示信息和所述第二指示信息确定所述参考信号序列。
  12. 根据权利要求11所述的方法，其特征在于，所述第一指示信息或所述第二指示信息包含于以下任一项信令中：
    无线资源控制RRC信令、媒体接入控制MAC控制元素CE信令、下行控制信息DCI。
  13. 一种确定参考信号序列的方法，其特征在于，所述方法包括：
    确定所述参考信号序列；
    向终端设备发送第一指示信息，所述第一指示信息用于指示传输配置指示TCI状态， 所述TCI状态关联所述参考信号序列。
  14. 根据权利要求13所述的方法，其特征在于，所述TCI状态关联所述参考信号序列的加扰标识ID。
  15. 根据权利要求14所述的方法，其特征在于，所述TCI状态包括用于指示所述加扰ID的指示信息。
  16. 根据权利要求14所述的方法，其特征在于，所述TCI状态的指示域关联所述加扰ID。
  17. 根据权利要求14所述的方法，其特征在于，所述TCI状态包括信道状态参考信号CSI-RS的信息，所述CSI-RS的信息关联所述加扰ID。
  18. 根据权利要求14所述的方法，其特征在于，所述CSI-RS的信息包括所述CSI-RS的标识和/或所述CSI-RS的加扰信息。
  19. 根据权利要求14所述的方法，其特征在于，所述TCI状态包括同步信息块SSB的信息，所述SSB的信息关联所述加扰ID。
  20. 根据权利要求19所述的方法，其特征在于，所述SSB的信息包括以下任一项或多项：
    所述SSB的频段信息、所述SSB的带宽信息、所述SSB的周期信息、所述SSB的时域信息、所述SSB的物理小区标识或所述SSB的波束信息。
  21. 根据权利要求14所述的方法，其特征在于，所述TCI状态包括服务小区的标识，所述服务小区的标识关联所述加扰ID。
  22. 根据权利要求13-21任一项所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述TCI状态是否关联所述参考信号序列。
  23. 根据权利要求22所述的方法，其特征在于，所述第一指示或所述第二指示信息包含于以下任一项信令中：
    无线资源控制RRC信令、媒体接入控制MAC控制元素CE信令、下行控制信息DCI。
  24. 根据权利要求13-23任一项所述的方法，其特征在于，所述参考信号序列包括解调参考信号DMRS序列。
  25. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自网络设备的第一指示信息，所述第一指示信息用于指示传输配置指示TCI状态，所述TCI状态关联参考信号序列；
    处理单元，用于根据所述第一指示信息确定所述参考信号序列。
  26. 根据权利要求25所述的装置，其特征在于，所述TCI状态关联所述参考信号序列的加扰标识ID。
  27. 根据权利要求25或26所述的装置，其特征在于，所述参考信号序列包括解调参考信号DMRS序列，
    所述处理单元，还用于根据所述DMRS序列进行信道估计。
  28. 根据权利要求26或27所述的装置，其特征在于，所述TCI状态包括用于指示所述加扰ID的指示信息。
  29. 根据权利要求26或27所述的装置，其特征在于，所述TCI状态的指示域关联所述加扰ID。
  30. 根据权利要求26或27所述的装置，其特征在于，所述TCI状态包括信道状态参考信号CSI-RS的信息，所述CSI-RS的信息关联所述加扰ID。
  31. 根据权利要求30所述的装置，其特征在于，所述CSI-RS的信息包括所述CSI-RS的标识和/或所述CSI-RS的加扰信息。
  32. 根据权利要求26或27所述的装置，其特征在于，所述TCI状态包括同步信息块SSB的信息，所述SSB的信息关联所述加扰ID。
  33. 根据权利要求32所述的装置，其特征在于，所述SSB的信息包括以下任一项或多项：
    所述SSB的频段信息、所述SSB的带宽信息、所述SSB的周期信息、所述SSB的时域信息、所述SSB的物理小区标识或所述SSB的波束信息。
  34. 根据权利要求26或27所述的装置，其特征在于，所述TCI状态包括服务小区的标识，所述服务小区的标识关联所述加扰ID。
  35. 根据权利要求25-34任一项所述的装置，其特征在于，
    所述收发单元，用于接收来自所述网络设备的第二指示信息，所述第二指示信息用于指示所述TCI状态是否关联所述参考信号序列；
    所述处理单元，具体用于根据所述第一指示信息和所述第二指示信息确定所述参考信号序列。
  36. 根据权利要求35所述的装置，其特征在于，所述第一指示信息和所述第二指示信息包含于以下任一项信令中：
    无线资源控制RRC信令、媒体接入控制MAC控制元素CE、下行控制信息DCI。
  37. 一种通信装置，其特征在于，包括：
    处理单元，用于确定参考信号序列；
    收发单元，用于向终端设备发送第一指示信息，所述第一指示信息用于指示传输配置指示TCI状态，所述TCI状态关联所述参考信号序列。
  38. 根据权利要求37所述的装置，其特征在于，所述TCI状态关联所述参考信号序列的加扰标识ID。
  39. 根据权利要求38所述的装置，其特征在于，所述TCI状态包括用于指示所述加扰ID的指示信息。
  40. 根据权利要求38所述的装置，其特征在于，所述TCI状态的指示域关联所述加扰ID。
  41. 根据权利要求38所述的装置，其特征在于，所述TCI状态包括信道状态参考信号CSI-RS的信息，所述CSI-RS的信息关联所述加扰ID。
  42. 根据权利要求41所述的装置，其特征在于，所述CSI-RS的信息包括所述CSI-RS的标识和/或所述CSI-RS的加扰信息。
  43. 根据权利要求38所述的装置，其特征在于，所述TCI状态包括同步信息块SSB的信息，所述SSB的信息关联所述加扰ID。
  44. 根据权利要求43所述的装置，其特征在于，所述SSB的信息包括以下任一项或多项：
    所述SSB的频段信息、所述SSB的带宽信息、所述SSB的周期信息、所述SSB的时域信息、所述SSB的物理小区标识或所述SSB的波束信息。
  45. 根据权利要求38所述的装置，其特征在于，所述TCI状态包括服务小区的标识，所述服务小区的标识关联所述加扰ID。
  46. 根据权利要求37-45任一项所述的装置，其特征在于，
    所述收发单元，用于向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述TCI状态是否关联所述参考信号序列。
  47. 根据权利要求46所述的装置，其特征在于，所述第一指示和所述第二指示信息包含于以下任一项信令中：
    无线资源控制RRC信令、媒体接入控制MAC控制元素CE、下行控制信息DCI。
  48. 根据权利要求37-47任一项所述的装置，其特征在于，所述参考信号序列包括解调参考信号DMRS序列。
  49. 一种通信装置，其特征在于，包括处理器，
    所述处理器用于执行存储器中的计算机程序，以使权利要求1-12任一项所述的方法被执行；或者，
    所述处理器用于执行存储器中的计算机程序，以使权利要求13-24任一项所述的方法被执行。
  50. 一种通信装置，其特征在于，包括处理器和存储器；
    所述存储器用于存储计算机执行指令；
    所述处理器用于执行所述存储器所存储的所述计算机执行指令，以使权利要求1-12任一项所述的方法被执行；或者，
    所述处理器用于执行所述存储器所存储的所述计算机执行指令，以使权利要求13-24任一项所述的方法被执行。
  51. 一种通信装置，其特征在于，包括逻辑电路和接口，所述逻辑电路和所述接口耦合；
    所述接口用于输入和/或输出代码指令，所述逻辑电路用于执行所述代码指令，以使权利要求1-12任一项所述的方法被执行；或者，以使权利要求13-24任一项所述的方法被执行。
  52. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机程序，
    当所述计算机程序被执行时，如权利要求1-12任一项所述的方法被执行；或者，
    当所述计算机程序被执行时，如权利要求13-24任一项所述的方法被执行。
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