WO2022077346A1 - 信道传输的方法、终端设备和网络设备 - Google Patents

信道传输的方法、终端设备和网络设备 Download PDF

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Publication number
WO2022077346A1
WO2022077346A1 PCT/CN2020/121173 CN2020121173W WO2022077346A1 WO 2022077346 A1 WO2022077346 A1 WO 2022077346A1 CN 2020121173 W CN2020121173 W CN 2020121173W WO 2022077346 A1 WO2022077346 A1 WO 2022077346A1
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Prior art keywords
pdcch
target coreset
configuration information
terminal device
detect
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PCT/CN2020/121173
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English (en)
French (fr)
Inventor
陈文洪
方昀
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/121173 priority Critical patent/WO2022077346A1/zh
Priority to CN202080103964.2A priority patent/CN116158040A/zh
Publication of WO2022077346A1 publication Critical patent/WO2022077346A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path

Definitions

  • the embodiments of the present application relate to the field of communications, and more particularly, to a method for channel transmission, a terminal device, and a network device.
  • TRP Transmission/Reception Point
  • PDCCH Physical Downlink Control Channel
  • SFN Single Frequency Network
  • Enhanced mode 1 multiple TRPs use SFN to send PDCCHs, that is, PDCCHs sent by multiple TRPs occupy the same physical resources (eg, the same Control Resource Set (CORESET) and search space). From the perspective of terminal reception, only one PDCCH needs to be detected. Since the channels between different TRPs and terminals are different, the network device needs to configure multiple Transmission Configuration Indicator (TCI) states for the CORESET where the PDCCH is located, corresponding to multiple TRPs respectively. The terminal needs to obtain large-scale parameters and channel estimation filters of the PDCCH based on multiple TCI states, so as to detect the PDCCH.
  • TCI Transmission Configuration Indicator
  • the enhancement mode 1 is usually used in high-speed transmission scenarios (such as high-speed rail), and the channel strength of the PDCCH is enhanced by means of SFN transmission to improve the detection performance.
  • multiple TRPs transmit the PDCCH by means of repeated transmission, that is, the PDCCHs sent by the multiple TRPs carry the same control information, but are transmitted on different time domain resources or frequency domain resources.
  • the network device also needs to configure multiple TCI states for the CORESET where the PDCCH is located, corresponding to multiple TRPs respectively, and different TCI states are used for the detection of repeated transmission of different PDCCHs.
  • Enhancement mode 2 can be used in Ultra-Reliable and Low Latency Communication (URLLC) scenarios, where the same control information is repeatedly transmitted on different resources through different TRPs, thereby obtaining additional diversity gain and improving PDCCH detection. performance.
  • URLLC Ultra-Reliable and Low Latency Communication
  • both of the above two enhancement methods need to be implemented by configuring multiple TCI states for CORESET, that is, their configuration signaling is similar.
  • the terminal side cannot know which enhancement method is currently used by the network side, and cannot use the corresponding method to detect the PDCCH.
  • Embodiments of the present application provide a channel transmission method, a terminal device, and a network device.
  • the terminal device does not know the purpose and application scenario of multiple currently configured TCI states, it can use other configurations to communicate with the network side.
  • the PDCCH detection is performed in the reception mode corresponding to the transmission mode, thereby improving the detection performance of the PDCCH.
  • a method for channel transmission comprising:
  • the terminal device determines, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET, wherein the target CORESET is configured with multiple TCI states;
  • the detection method is one of the following three methods:
  • the first way is to use the multiple TCI states to detect each PDCCH in the target CORESET;
  • the second method is to use the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the third way is to detect each PDCCH in the target CORESET using one of the multiple TCI states.
  • a method for channel transmission comprising:
  • the network device sends first configuration information and multiple TCI states of the target CORESET to the terminal device, wherein the first configuration information is used by the terminal device to determine the detection method adopted by the PDCCH in the target CORESET;
  • the detection method is one of the following three methods:
  • the first way is to use the multiple TCI states to detect each PDCCH in the target CORESET;
  • the second method is to use the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the third way is to detect each PDCCH in the target CORESET using one of the multiple TCI states.
  • a terminal device for executing the method in the above-mentioned first aspect.
  • the terminal device includes functional modules for executing the method in the first aspect.
  • a network device for executing the method in the second aspect.
  • the network device includes functional modules for executing the method in the second aspect above.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and execute the computer program stored in the memory to execute the method in the second aspect.
  • an apparatus for implementing the method in any one of the above-mentioned first to second aspects.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the first to second aspects above.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the first to second aspects above.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the first to second aspects above.
  • a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to second aspects.
  • the terminal device can determine, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET configured with multiple TCI states. That is, when the terminal device does not know the purpose and application scenario of the currently configured multiple TCI states, it can detect the PDCCH by using the reception mode corresponding to the transmission mode on the network side according to other configurations, thereby improving the detection of the PDCCH. performance. It can effectively avoid the problem that the PDCCH cannot be correctly demodulated due to the wrong way of PDCCH detection.
  • FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic diagram of a physical resource of a PDCCH provided by the present application.
  • FIG. 3 is a schematic diagram of the correspondence between a CORESET and a search space provided by the present application.
  • FIG. 4 is a schematic diagram of a TCI state configuration of a PDSCH provided by the present application.
  • FIG. 5 is a schematic flowchart of a method for channel transmission according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of determining a detection method according to time domain resource configuration information of a target CORESET according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of determining a detection method according to repeated configuration information of a target CORESET according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the 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.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small 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.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • predefinition may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • predefined may refer to the definition in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
  • the terminal device determines the resources for detecting the PDCCH through the CORESET and the search space configured on the network side.
  • CORESET is used to determine the frequency domain resource size (such as the occupied physical resource block (PRB) number) and the time domain resource size (such as the occupied orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing)) of the PDCCH in a time slot frequency-division multiplexing, the number of OFDM symbols), including the starting position of the frequency domain resource, the length of the frequency domain resource and the length of the time domain resource, etc.
  • the search space is used to determine the time domain resource position of the PDCCH, including the time domain resource starting position and monitoring period. According to a CORESET and a search space configuration, the terminal can determine the location of the physical resources for detecting the PDCCH, such as the resources marked by shadows in FIG. 2 .
  • the network side configures up to three CORESETs through high-layer signaling, and each CORESET has its own CORESET identity (Identity, ID).
  • the network side can also configure at least one search space through high-level signaling, and the configuration parameters of each search space include the ID of the associated CORESET, aggregation level, search space type, and the like.
  • Each search space can only be associated with one CORESET, but one CORESET can be associated with multiple search spaces, as shown in Figure 3.
  • the search space type includes the configuration of whether the search space is a common search space (Common Search Space, CSS) or a terminal equipment-specific search space (UE Search Space, USS), and the downlink control information that the terminal needs to detect in the search space (Downlink Control Information, DCI) format (format).
  • the search space is CSS
  • the search space type (searchSpaceType) in the search space is configured as common (Common)
  • the corresponding DCI formats to be detected include DCI format 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3, DCI format At least one of formats such as 0_0 and DCI format 1_0, that is, the DCI is generally used for the transmission of scheduling control information.
  • the corresponding DCI formats to be detected include DCI format 0_0 and DCI format 1_0 (formats0-0-And-1-0), or include DCI format 0_1 and DCI format 1_1 (formats0-1-And-1 -1), that is, the DCI is generally used to schedule uplink or downlink data transmission.
  • QCL Quasi-co-located
  • the network device can configure the corresponding TCI state for each downlink signal or downlink channel, indicating the QCL reference signal corresponding to the target downlink signal or the target downlink channel, so that the terminal can perform the target downlink signal or target downlink channel based on the reference signal. reception.
  • a TCI state can contain the following configurations:
  • TCI state ID used to identify a TCI state
  • a QCL information also includes the following information:
  • QCL type (type) configuration which can be one of QCL type A, QCL type B, QCL type C, and QCL type D;
  • QCL reference signal configuration including the ID of the cell where the reference signal is located, the Band Width Part (BWP) ID, and the identifier of the reference signal (which can be Channel State Information Reference Signal (CSI-RS) resource ID or Synchronization Signal Block (SSB) index).
  • BWP Band Width Part
  • CSI-RS Channel State Information Reference Signal
  • SSB Synchronization Signal Block
  • the QCL type of at least one of QCL information 1 and QCL information 2 must be one of typeA, typeB, and typeC, and the QCL type of the other QCL information (if configured) must be QCL type D.
  • 'QCL-TypeA' ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇ ;
  • the terminal device can assume that the target downlink channel is the same as the reference SSB. Or the target large-scale parameters of the reference CSI-RS resources are the same, so that the same corresponding reception parameters are used for reception, and the target large-scale parameters are determined by the QCL type configuration.
  • the terminal device can use the same as receiving the reference SSB or reference CSI-RS resource.
  • the receive beam with the same RS resource (that is, the Spatial Rx parameter) is used to receive the target downlink channel.
  • the target downlink channel and its reference SSB or reference CSI-RS resources are transmitted by the same TRP or the same antenna panel or the same beam on the network side. If the transmission TRPs, transmission panels or transmission beams of the two downlink signals or downlink channels are different, different TCI states are usually configured.
  • the TCI state may be indicated by means of radio resource control (Radio Resource Control, RRC) signaling or RRC signaling+MAC signaling.
  • RRC Radio Resource Control
  • RRC signaling For the downlink data channel, the available TCI state set is indicated by RRC signaling, and some of the TCI states are activated by Media Access Control (MAC) layer signaling.
  • MAC Media Access Control
  • One or two TCI states are indicated in the activated TCI state, which are used for the PDSCH scheduled by the DCI.
  • the network device indicates N candidate TCI states through RRC signaling, activates K TCI states through MAC signaling, and finally indicates 1 from the activated TCI state through the TCI state indication field in DCI 1 or 2 TCI states used.
  • multiple TRPs can transmit the same PDCCH to improve the detection performance of the PDCCH.
  • the PDCCH sent by different TRP adopts SFN transmission it can be divided into the following two enhancement modes:
  • Enhanced mode 1 multiple TRPs use SFN to send PDCCHs, that is, PDCCHs sent by multiple TRPs occupy the same physical resources (eg, the same CORESET and search space). From the perspective of terminal reception, only one PDCCH needs to be detected. Since the channels between different TRPs and terminals are different, the network device needs to configure multiple TCI states for the CORESET where the PDCCH is located, corresponding to multiple TRPs respectively. The terminal needs to obtain large-scale parameters and channel estimation filters of the PDCCH based on multiple TCI states, so as to detect the PDCCH.
  • the enhancement mode 1 is usually used in high-speed transmission scenarios (such as high-speed rail), and the channel strength of the PDCCH is enhanced by means of SFN transmission to improve the detection performance.
  • multiple TRPs transmit the PDCCH by means of repeated transmission, that is, the PDCCHs sent by the multiple TRPs carry the same control information, but are transmitted on different time domain resources or frequency domain resources.
  • the network device On the terminal side, it is necessary to receive the PDCCHs sent by different TRPs respectively, and combine the received signals or the detected control information, so as to obtain the final detection result.
  • the network device also needs to configure multiple TCI states for the CORESET where the PDCCH is located, corresponding to multiple TRPs respectively, and different TCI states are used for the detection of repeated transmission of different PDCCHs.
  • the enhanced mode 2 can be used in the URLLC scenario, and the same control information is repeatedly transmitted on different resources through different TRPs, thereby obtaining additional diversity gain and improving the PDCCH detection performance.
  • the above two enhancement methods can improve the detection performance of PDCCH, but their application scenarios and transmission methods are different.
  • the channel estimation and PDCCH detection methods of the terminal are also different.
  • both of the above two enhancement methods need to be implemented by configuring multiple TCI states for CORESET, that is, their configuration signaling is similar.
  • the terminal side cannot know which enhancement method is currently used by the network side, and cannot use the corresponding method to detect the PDCCH. If the wrong method is adopted, the reliability of PDCCH transmission will be affected.
  • the present application proposes a channel transmission scheme.
  • the terminal device does not know the purpose and application scenario of the currently configured multiple TCI states, it can use other configurations corresponding to the transmission method on the network side.
  • the receiving mode is used to detect the PDCCH, thereby improving the detection performance of the PDCCH.
  • FIG. 5 is a schematic flowchart of a method 200 for channel transmission according to an embodiment of the present application. As shown in FIG. 5 , the method 200 may include at least part of the following contents:
  • the network device sends first configuration information and multiple TCI states of the target CORESET to the terminal device, wherein the first configuration information is used by the terminal device to determine the detection method adopted by the PDCCH in the target CORESET;
  • the terminal device receives the first configuration information and multiple TCI states of the target CORESET sent by the network device;
  • the terminal device determines, according to the first configuration information, a detection mode adopted by the PDCCH in the target CORESET.
  • the target CORESET is configured with multiple TCI states.
  • the detection method is one of the following three methods:
  • the first way is to use the multiple TCI states to detect each PDCCH in the target CORESET;
  • the second method is to use the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the third way is to detect each PDCCH in the target CORESET using one of the multiple TCI states.
  • one TCI state among the multiple TCI states is the first TCI state among the multiple TCI states, or, one TCI state among the multiple TCI states is the multiple TCI state.
  • first manner and/or the third manner may be similar to the aforementioned enhancement manner 1, and the second manner may be similar to the foregoing enhancement manner 2.
  • the terminal device uses the multiple TCI states to perform detection. For example, the terminal device obtains multiple sets of channel large-scale parameters from the multiple TCI states respectively, and obtains the filter used for channel estimation according to these large-scale parameters, so as to perform channel estimation for each PDCCH based on the filter and the PDCCH DMRS, and obtain each PDCCH channel estimation. PDCCH channels; PDCCH detection is performed based on the obtained PDCCH channels. For another example, the terminal device obtains multiple receive beams from the multiple TCI states respectively; for each PDCCH, respectively performs PDCCH reception based on these receive beams; performs each PDCCH detection based on PDCCHs obtained from different receive beams.
  • the terminal device uses the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively.
  • the network device may configure two TCI states for the CORESET, which are respectively used to detect two different PDCCHs that carry the same information in the target CORESET.
  • the control information carried in the two PDCCHs is the same, but they may occupy different time-frequency resources, for example, may occupy different OFDM symbols or time slots.
  • the two PDCCHs may be PDCCHs in two PDCCH candidates.
  • the terminal device detects each PDCCH in the target CORESET using only one TCI state among the multiple TCI states.
  • the one TCI state may be the first TCI state among the multiple TCI states, or the second TCI state among the multiple TCI states, or the TCI with the lowest TCI state ID among the multiple TCI states state, or a TCI state determined by the terminal from the multiple TCI states according to other configuration information, and so on.
  • the network device configures two TCI states for the target CORESET, but the terminal device only adopts the first TCI state, and the second TCI state is not used for PDCCH detection.
  • the terminal device may determine the detection method adopted by the PDCCH in the target CORESET from the first manner and the second manner according to the first configuration information, that is, the first configuration information is in some configurations, the The detection mode is the first mode, and in other configurations, the detection mode is the second mode.
  • the terminal device may determine, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET from the first mode and the third mode, that is, in some configurations of the first configuration information, the detection mode is the first detection mode. mode, in other configurations, the detection mode is the third mode.
  • the terminal device may determine, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET from the second mode and the third mode, that is, in some configurations of the first configuration information, the detection mode is the second detection mode. mode, in other configurations, the detection mode is the third mode.
  • the terminal device may determine the detection mode adopted by the PDCCH in the target CORESET from the first mode, the second mode and the third mode according to the first configuration information, that is, the first configuration information is in some configurations, the detection mode The mode is the first mode, in other configurations, the detection mode is the second mode, and in other configurations, the detection mode is the third mode.
  • the first configuration information includes but is not limited to at least one of the following:
  • PDSCH Physical Downlink Shared Channel
  • the terminal device may obtain the transmission mode of the network side for the PDCCH in the target CORESET based on the first configuration information, and the terminal device may determine to use the receiving mode corresponding to the transmission mode of the network side according to the first configuration information.
  • the detection of the PDCCH is performed in a manner to improve the detection performance of the PDCCH.
  • S230 is described in detail below through Example 1 to Example 4.
  • Example 1 the first configuration information is time domain resource configuration information of the target CORESET.
  • the time-domain resource configuration information indicates one or more groups of time-domain resources used for sending the PDCCH.
  • S230 may specifically be:
  • the terminal device determines to use the first method to detect the PDCCH in the target CORESET, or the terminal device determines to use the third method way to detect the PDCCH in the target CORESET;
  • the terminal device determines to use the second method to detect the PDCCH in the target CORESET.
  • Example 1 in the case where multiple groups of time-domain resources for sending PDCCH are indicated in the time-domain resource configuration information, the terminal device uses the multiple TCI states to use the multiple groups for sending PDCCH, respectively. Different PDCCHs carrying the same information in the target CORESET are detected on the time domain resources of the target CORESET.
  • Example 1 when multiple groups of time domain resources for sending PDCCH are indicated in the time domain resource configuration information, different groups of time domain resources for sending PDCCH occupy different OFDMs in the same time slot. Symbols, or different groups of time domain resources used for transmitting PDCCH occupy adjacent downlink time slots.
  • the first configuration information is the repeated configuration information of the target CORESET.
  • the repetition configuration information indicates whether to perform PDCCH repetition transmission.
  • S230 may specifically be:
  • the terminal device determines to use the first method to detect the PDCCH in the target CORESET, or the terminal device determines to use the third method to detect the PDCCH in the target CORESET PDCCH;
  • the terminal device determines to use the second method to detect the PDCCH in the target CORESET.
  • Example 2 in the case that the repeated PDCCH transmission is indicated by the repeated configuration information, the terminal device adopts the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the different PDCCHs occupy different time domain resources, or the different PDCCHs occupy different frequency domain resources, or the different PDCCHs occupy different PDCCH candidates.
  • the repetition configuration information is further used to indicate a manner of repetition transmission of the PDCCH in the target CORESET. For example, it can be used to indicate whether the repeated transmission of the PDCCH adopts a time-division multiplexing (TDM) mode or a frequency-division multiplexing (Frequency-division multiplexing, FDM) mode.
  • TDM time-division multiplexing
  • FDM frequency-division multiplexing
  • Example 3 the first configuration information is the configuration of the search space associated with the target CORESET.
  • S230 may specifically include at least one of the following:
  • the terminal device determines to use the first method to detect the PDCCH in the target CORESET, or the terminal device determines to use the third method to detect the PDCCH PDCCH in the target CORESET;
  • the terminal device determines to use the second method to detect the target CORESET PDCCH in ;
  • the terminal device determines to use the third method to detect the target CORESET.
  • the terminal device determines to use the first method to detect the PDCCH in the target CORESET.
  • Example 3 when the TCI state is indicated in the configuration of the search space associated with the target CORESET, the terminal device uses the TCI state indicated in the configuration of the search space associated with the target CORESET to detect the corresponding search. PDCCH in space. For example, if the configuration of the first search space associated with the target CORESET indicates TCI state 0, and the configuration of the second search space indicates TCI state 1, the terminal device uses TCI state 0 to detect the PDCCH in the first search space, and uses TCI state 0 to detect the PDCCH in the first search space. State 1 detects the PDCCH in the second search space.
  • Example 3 a TCI state is indicated in the configuration of each search space associated with the target CORESET, and the TCI states indicated in the configurations of different search spaces are not exactly the same, and different TCIs are configured. Different PDCCHs carrying the same information are respectively carried in the search spaces of the states. At this time, in the search space configured with different TCI states, the terminal device uses the configured TCI states to detect different PDCCHs carrying the same information respectively.
  • the terminal device receives second configuration information sent by the network device, where the second configuration information is used to configure the index of the adopted TCI state for the search space associated with the target CORESET.
  • the first configuration information is the PDSCH transmission mode configuration on the BWP where the target CORESET is located.
  • the transmission mode is configured to indicate that multiple TCI states are used to detect the same PDSCH.
  • S230 may specifically be:
  • the terminal device determines to use the first mode to detect the PDCCH in the target CORESET;
  • the terminal device determines to use the second mode to detect the PDCCH in the target CORESET, or the terminal device determines to use the third mode Detect the PDCCH in the target CORESET.
  • TCI states of PDSCH and PDCCH are independently configured.
  • the multiple TCI states used for PDSCH detection and the multiple TCI states used for PDCCH detection may be the same or different.
  • each demodulation reference signal (Demodulation Reference Signal, DMRS) port of the PDSCH is associated with the same PDSCH.
  • DMRS Demodulation Reference Signal
  • the terminal device may perform PDCCH detection in the target CORESET based on the determined detection manner.
  • the terminal device when the terminal device determines to use the second method to detect the PDCCH in the target CORESET, the terminal device combines the PDCCH signals respectively received in the multiple TCI states, and then performs the PDCCH signal in the PDCCH. Detection of control information.
  • the network device indicates the first configuration information and multiple TCI states corresponding to the target CORESET.
  • the first configuration information is time domain resource configuration information of the target CORESET.
  • the network device may configure the time domain resource configuration information of the target CORESET through RRC signaling, and indicate the multiple TCI states through MAC layer signaling.
  • the multiple TCI states are two TCI states.
  • the terminal device determines, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET configured with multiple TCI states.
  • the detection method is one of the following three methods:
  • the first way is to use the multiple TCI states to detect each PDCCH in the target CORESET;
  • the second method is to use the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the third way is to detect each PDCCH in the target CORESET using only one TCI state of the plurality of TCI states.
  • the terminal device uses the multiple TCI states to perform detection. For example, the terminal device obtains multiple sets of channel large-scale parameters from the multiple TCI states respectively; obtains the filter used for channel estimation according to these large-scale parameters, thereby performs channel estimation based on the PDCCH DMRS, and obtains the PDCCH channel; based on the obtained PDCCH channel
  • the detection of PDCCH is performed.
  • the terminal device obtains multiple receiving beams from the multiple TCI states, respectively performs PDCCH reception based on these receiving beams, and performs PDCCH detection based on PDCCHs obtained from different receiving beams.
  • the terminal device uses the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively.
  • the network device may configure two TCI states for the CORESET, which are respectively used to detect two different PDCCHs that carry the same information in the target CORESET.
  • the control information carried in the two PDCCHs is the same, but they may occupy different time-frequency resources, for example, may occupy different OFDM symbols or time slots.
  • the two PDCCHs may be PDCCHs in two PDCCH candidates.
  • the terminal device detects each PDCCH in the target CORESET using only one TCI state among the multiple TCI states.
  • the one TCI state may be the first TCI state among the multiple TCI states, or the second TCI state among the multiple TCI states, or the TCI with the lowest TCI state ID among the multiple TCI states status, and so on.
  • the network device configures two TCI states for the target CORESET, but the terminal device only adopts the first TCI state, and the second TCI state is not used for PDCCH detection.
  • the terminal device may determine, according to the first configuration information, the detection manner adopted for the PDCCH in the target CORESET from the first manner and the second manner, and when the When the first configuration information indicates the first configuration, the first method is adopted, and when the first configuration information indicates the second configuration, the second method is adopted;
  • the third method the detection method adopted by the PDCCH in the target CORESET is determined.
  • the first configuration information indicates the third configuration
  • the first method is adopted, and when the first configuration information indicates the fourth configuration, the third method is adopted.
  • the terminal device can determine the detection mode adopted by the PDCCH in the target CORESET from the second mode and the third mode according to the first configuration information, and when the first configuration information indicates the fifth configuration, adopt the first configuration information. In the second mode, when the first configuration information indicates the sixth configuration, the third mode is adopted.
  • the terminal device determines to use the first method to detect the time domain resources in the target CORESET.
  • PDCCH as shown in A in Figure 6, each group of time domain resources includes two OFDM symbols; when multiple groups of time domain resources for sending PDCCH are indicated in the time domain resource configuration information of the target CORESET, the terminal device determines to use the first time domain resource.
  • the PDCCH in the CORESET is detected in two ways, as shown in B in FIG. 6 , each group of time domain resources includes two OFDM symbols.
  • each group of time domain resources includes two OFDM symbols; when the time domain resource configuration information of the target CORESET indicates multiple groups of time domain resources for sending PDCCH, the terminal equipment It is determined to use the second method to detect the PDCCH in the target CORESET. As shown in B in FIG. 6 , each group of time domain resources includes two OFDM symbols.
  • the terminal device when the time-domain resource configuration information of the target CORESET indicates multiple groups of time-domain resources used for sending PDCCH, the terminal device adopts the multiple TCI states in the multiple groups of time-domain resources used for sending PDCCH, respectively.
  • Different PDCCHs carrying the same information are detected in time domain resources.
  • different groups of time domain resources used for transmitting PDCCH occupy different OFDM symbols in the same time slot, or occupy adjacent downlink time slots, for example, occupy the same OFDM symbol in adjacent downlink time slots.
  • the network device configures two sets of time domain resources for sending PDCCH, the terminal device uses the first TCI state to detect the first PDCCH in the first set of time domain resources, and uses the second TCI state to detect the second set of time domain resources
  • the second PDCCH, the first PDCCH and the second PDCCH carry the same control information.
  • each group of time domain resources includes two OFDM symbols in different time slots.
  • the terminal device performs PDCCH detection in the target CORESET in a deterministic manner.
  • the detection method is as described above for the first manner.
  • the terminal device determines to use the second method to detect the PDCCH in the target CORESET, the terminal device combines the PDCCH signals respectively received in the multiple TCI states, and then detects the control information in the PDCCH.
  • the detection method is as follows: The previous description is for the second mode.
  • the detection method is as described above for the third manner.
  • the terminal device only uses the large-scale parameters or receive beams obtained from one TCI state to detect each PDCCH in the target CORESET.
  • Embodiment 1 reuses the time domain resource configuration information of the target CORESET to indicate the transmission mode of the PDCCH, and no additional signaling overhead is required, so that the terminal can perform detection in a corresponding manner, avoiding erroneous detection of the PDCCH.
  • the network device indicates the first configuration information and multiple TCI states corresponding to the target CORESET.
  • the first configuration information is the repeated configuration information of the target CORESET.
  • the network device may include the repeated configuration information of the target CORESET in the configuration information of the target CORESET.
  • the repeat configuration information may be used to indicate whether the PDCCH in the target CORESET is repeatedly transmitted.
  • the terminal device determines, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET configured with multiple TCI states.
  • the terminal device when the repeat configuration information of the target CORESET does not indicate to perform repeated PDCCH transmission, the terminal device determines to use the first method to detect the PDCCH in the target CORESET, as shown in FIG. 7 . As shown in A; when the repetition configuration information of the target CORESET indicates to perform repeated PDCCH transmission, the terminal device determines to use the second method to detect the PDCCH in the target CORESET, as shown in B in FIG. 7 .
  • the terminal device determines to use the third method to detect the PDCCH in the target CORESET, as shown in FIG. 7 .
  • the terminal device determines to use the second method to detect the PDCCH in the target CORESET, as shown in B in FIG. 7 .
  • the terminal device when the repetition configuration information of the target CORESET indicates to perform repeated PDCCH transmission, uses the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively, and the different PDCCHs occupy different PDCCHs.
  • time domain resource or frequency domain resource or PDCCH candidate candidate).
  • the terminal device uses the first TCI state to detect the first PDCCH, and uses the second TCI state to detect the second PDCCH.
  • the first PDCCH and the second PDCCH carry the same control information and occupy different OFDM symbols, as shown in FIG. 7 . shown in B.
  • the repetition configuration information of the target CORESET is further used to indicate the manner in which the PDCCH in the target CORESET performs repeated transmission.
  • the repeat configuration information of the target CORESET may include two bits of information, one of which indicates that PDCCH repeat transmission is not performed, one bit indicates that different time domain resources are used for PDCCH repeat transmission, and one bit indicates that different frequency domain resources are used. Repeated transmission of PDCCH is performed, and another bit is reserved.
  • the terminal device performs PDCCH detection in the target CORESET in a deterministic manner.
  • Embodiment 2 reuses the repeated configuration information of the target CORESET to indicate the transmission mode of the PDCCH, and does not require additional signaling overhead, so that the terminal can perform detection in a corresponding manner, avoiding erroneous detection of the PDCCH.
  • the network device indicates the first configuration information and multiple TCI states corresponding to the target CORESET.
  • the first configuration information is the configuration of the search space associated with the target CORESET.
  • the network device may include indication information of the TCI state index in the configuration information of the search space associated with the target CORESET, which is used to indicate the TCI state used by the PDCCH in the search space among the multiple TCI states. index.
  • Different search spaces associated with the target CORESET can be configured with the same TCI state index or with different TCI state indexes; the same number of TCI state indexes can also be configured with different numbers of TCI state indexes. For example, the number can be 0, 1 or 2.
  • the terminal device determines, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET configured with multiple TCI states.
  • the terminal device may use a combination of the following manners to determine the detection manner adopted by the PDCCH in the target CORESET configured with multiple TCI states:
  • the terminal device determines to use the first method to detect the PDCCH in the target CORESET.
  • the terminal device determines to use the third way to detect the PDCCH in the target CORESET.
  • Mode 3 When the configuration of each search space associated with the target CORESET indicates one TCI state, and the TCI states indicated in the configurations of different search spaces are not exactly the same, the terminal device determines to use the second mode to detect the TCI status in the target CORESET.
  • PDCCH For example, the configurations of the first search space and the second search space associated with the target CORESET both indicate a TCI state, wherein the configuration of the first search space indicates TCI state 0, and the configuration of the second search space indicates the TCI state 1.
  • Mode 4 When the configuration of each search space associated with the target CORESET indicates one TCI state, and the TCI states indicated in the configurations of different search spaces are the same, the terminal device determines to use the third mode to detect the PDCCH in the target CORESET . For example, TCI state 0 is indicated in the configuration of all search spaces associated with the target CORESET.
  • the terminal device determines to use the first method to detect the PDCCH in the target CORESET. For example, TCI state 0 and TCI state 1 are indicated in the configuration of all search spaces associated with the target CORESET.
  • the terminal device detects the PDCCH in the corresponding search space by using the TCI state indicated in the configuration of the search space associated with the target CORESET. For example, if the configuration of the first search space associated with the target CORESET indicates TCI state 0, and the configuration of the second search space indicates TCI state 1, the terminal device uses TCI state 0 to detect the PDCCH in the first search space, and uses TCI state 0 to detect the PDCCH in the first search space. State 1 detects the PDCCH in the second search space.
  • Embodiment 3 when the configuration of each search space associated with the target CORESET indicates one TCI state, and the TCI states indicated in the configurations of different search spaces are not completely the same, Different PDCCHs carrying the same information are respectively carried in the search spaces configured with different TCI states. At this time, in the search space configured with different TCI states, the terminal device uses the configured TCI states to detect different PDCCHs carrying the same information respectively.
  • the terminal device performs PDCCH detection in the target CORESET in a deterministic manner.
  • Embodiment 3 reuses the configuration of each search space associated with the target CORESET to indicate the transmission mode of the PDCCH, and no additional signaling overhead is required, so that the terminal can perform detection in a corresponding manner, avoiding erroneous detection of the PDCCH.
  • the network device indicates the first configuration information and multiple TCI states corresponding to the target CORESET.
  • the first configuration information is the PDSCH transmission mode configuration on the BWP where the target CORESET is located.
  • the network device may configure a corresponding transmission mode for PDSCH on a BWP through physical layer signaling or high layer signaling.
  • the transmission mode is to use multiple TCI states to detect the same PDSCH.
  • the terminal device may consider that the PDCCH on the same BWP also adopts a similar transmission mode, and thus adopts the first mode for detection.
  • the terminal device determines, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET configured with multiple TCI states.
  • the terminal device determines to use the first method to detect the target CORESET. Otherwise, the terminal device determines to use the second method to detect the PDCCH in the target CORESET.
  • the terminal device when the transmission mode configuration of the PDSCH on the BWP where the target CORESET is located indicates that multiple TCI states are used to detect the same PDSCH, the terminal device determines to use the first method to detect the target. The PDCCH in the CORESET; otherwise, the terminal device determines to use the third method to detect the PDCCH in the target CORESET.
  • the network device may associate multiple TCI states for each DMRS port of the PDSCH to indicate that the terminal device needs to use multiple TCI states to detect the same PDSCH at this time. Therefore, "using multiple TCI states to detect the same PDSCH" in the above judgment condition may also be replaced with "each DMRS port of the PDSCH is associated with multiple TCI states”.
  • the terminal device performs PDCCH detection in the target CORESET in a deterministic manner.
  • Embodiment 4 utilizes the consistency of the PDSCH and PDCCH transmission schemes and application scenarios, reuses the PDSCH transmission mode configuration to indicate the PDCCH transmission mode, and does not require additional signaling overhead, so the terminal can use the corresponding method for detection, avoiding the need for Error detection of PDCCH.
  • the terminal device may determine, according to the first configuration information, the detection mode adopted by the PDCCH in the target CORESET configured with multiple TCI states. That is, when the terminal device does not know the purpose and application scenario of the currently configured multiple TCI states, it can detect the PDCCH by using the reception mode corresponding to the transmission mode on the network side according to other configurations, thereby improving the detection of the PDCCH. performance. It can effectively avoid the problem that the PDCCH cannot be correctly demodulated due to the wrong way of PDCCH detection.
  • FIG. 8 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the processing unit 310 is configured to determine, according to the first configuration information, the detection mode adopted by the physical downlink control channel PDCCH in the target control resource set CORESET, wherein the target CORESET is configured with multiple transmission configurations indicating TCI states;
  • the detection method is one of the following three methods:
  • the first way is to use the multiple TCI states to detect each PDCCH in the target CORESET;
  • the second method is to use the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the third way is to detect each PDCCH in the target CORESET using one of the multiple TCI states.
  • the first configuration information includes at least one of the following:
  • the first configuration information is time domain resource configuration information of the target CORESET
  • the processing unit 310 is specifically used for:
  • time-domain resource configuration information indicates a group of time-domain resources for sending PDCCH
  • time domain resource configuration information indicates multiple groups of time domain resources for sending PDCCH
  • the terminal device 300 further includes: a communication unit 320, wherein:
  • the communication unit 320 is configured to use the multiple TCI states to detect on the multiple sets of time-domain resources for sending PDCCH respectively Different PDCCHs carrying the same information in the target CORESET.
  • different groups of time-domain resources used for sending PDCCH occupy different orthogonal frequency division multiplexing in the same time slot.
  • OFDM symbols, or different groups of time domain resources used for transmitting PDCCH occupy adjacent downlink time slots.
  • the first configuration information is the repeated configuration information of the target CORESET
  • the processing unit 310 is specifically used for:
  • the repeated transmission of the PDCCH is not indicated by the repeated configuration information, it is determined that the first method is used to detect the PDCCH in the target CORESET, or it is determined that the third method is used to detect the PDCCH in the target CORESET;
  • the repeated PDCCH transmission is indicated by the repeated configuration information, it is determined to use the second method to detect the PDCCH in the target CORESET.
  • the terminal device 300 further includes: a communication unit 320, wherein:
  • the communication unit is configured to detect different PDCCHs carrying the same information in the target CORESET by using the multiple TCI states;
  • the different PDCCHs occupy different time domain resources, or the different PDCCHs occupy different frequency domain resources, or the different PDCCHs occupy different PDCCH candidates.
  • the repeat configuration information is further used to indicate a manner of repeating transmission of the PDCCH in the target CORESET.
  • the first configuration information is the configuration of the search space associated with the target CORESET
  • the processing unit 310 determines, according to the first configuration information, a detection method adopted by the PDCCH in the target CORESET, including at least one of the following:
  • the processing unit 310 determines to use the first method to detect the PDCCH in the target CORESET, or the processing unit 310 determines to use the third method Detect the PDCCH in the target CORESET;
  • the processing unit 310 determines to use the second method to detect the target PDCCH in CORESET;
  • the processing unit 310 determines to use the third method to detect the target CORESET PDCCH in ;
  • the processing unit 310 determines to use the first method to detect the PDCCH in the target CORESET.
  • the terminal device 300 further includes: a communication unit 320, wherein:
  • the communication unit 320 is configured to detect the PDCCH in the corresponding search space using the TCI state indicated in the configuration of the search space associated with the target CORESET.
  • each search space associated with the target CORESET indicates a TCI state
  • the TCI states indicated in the configurations of different search spaces are not exactly the same
  • the search spaces of different TCI states are configured. Different PDCCHs carrying the same information are respectively carried.
  • the terminal device 300 further includes:
  • the communication unit 320 is configured to receive second configuration information, where the second configuration information is used to configure the index of the adopted TCI state for the search space associated with the target CORESET.
  • the first configuration information is the PDSCH transmission mode configuration on the BWP where the target CORESET is located;
  • the processing unit 310 is specifically used for:
  • the transmission mode configuration indicates that multiple TCI states are used to detect the same PDSCH, it is determined that the first mode is used to detect the PDCCH in the target CORESET;
  • the transmission mode configuration indicates that multiple TCI states are used to detect the same PDSCH, determine to use the second mode to detect the PDCCH in the target CORESET, or determine to use the third mode to detect the PDCCH in the target CORESET PDCCH.
  • each demodulation reference signal DMRS port of the PDSCH is associated with the multiple TCI states.
  • one TCI state among the multiple TCI states is the first TCI state among the multiple TCI states, or, one TCI state among the multiple TCI states is the multiple TCI state.
  • the terminal device 300 further includes:
  • the communication unit 320 is configured to perform control in the PDCCH after combining the PDCCH signals respectively received in the multiple TCI states when the terminal device determines to use the second method to detect the PDCCH in the target CORESET detection of information.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 300 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are respectively for realizing the method shown in FIG. 5 .
  • the corresponding process of the terminal device in 200 is not repeated here for brevity.
  • FIG. 9 shows a schematic block diagram of a network device 400 according to an embodiment of the present application.
  • the network device 400 includes:
  • the communication unit 410 is configured to send first configuration information and multiple transmission configuration indication TCI states of the target control resource set CORESET to the terminal device, wherein the first configuration information is used by the terminal device to determine the physical downlink control in the target CORESET The detection method adopted by the channel PDCCH;
  • the detection method is one of the following three methods:
  • the first way is to use the multiple TCI states to detect each PDCCH in the target CORESET;
  • the second method is to use the multiple TCI states to detect different PDCCHs carrying the same information in the target CORESET respectively;
  • the third way is to detect each PDCCH in the target CORESET using one of the multiple TCI states.
  • the first configuration information includes at least one of the following:
  • the first configuration information is time domain resource configuration information of the target CORESET, and the time domain resource configuration information indicates one or more groups of time domain resources for sending PDCCH.
  • the first configuration information is repeated configuration information of the target CORESET, and the repeated configuration information indicates whether to perform repeated PDCCH transmission.
  • the repeat configuration information is further used to indicate a manner of repeating transmission of the PDCCH in the target CORESET.
  • the first configuration information is a PDSCH transmission mode configuration on the BWP where the target CORESET is located, and the transmission mode configuration is used to indicate that multiple TCI states are used to detect the same PDSCH.
  • one TCI state among the multiple TCI states is the first TCI state among the multiple TCI states, or, one TCI state among the multiple TCI states is the multiple TCI state.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the network device 400 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 400 are for realizing the method shown in FIG. 5 , respectively.
  • the corresponding process of the network device in 200 is not repeated here for brevity.
  • FIG. 10 is a schematic structural diagram of a communication device 500 provided by an embodiment of the present application.
  • the communication device 500 shown in FIG. 10 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 500 may further include a memory 520 .
  • the processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.
  • the memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .
  • the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by a device.
  • the transceiver 530 may include a transmitter and a receiver.
  • the transceiver 530 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 500 may specifically be a network device in this embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 500 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 500 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and will not be repeated here.
  • FIG. 11 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 600 shown in FIG. 11 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 600 may further include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
  • the apparatus 600 may further include an input interface 630 .
  • the processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 600 may further include an output interface 640 .
  • the processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 12 is a schematic block diagram of a communication system 700 provided by an embodiment of the present application. As shown in FIG. 12 , the communication system 700 includes a terminal device 710 and a network device 720.
  • the terminal device 710 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 720 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be 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 executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • 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 through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed 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 purpose of the solution in this embodiment.
  • 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 functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used 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 storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例提供了一种本申请实施例提供了一种信道传输的方法、终端设备和网络设备,能够提高PDCCH的检测性能。该信道传输的方法包括:终端设备根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,其中,该目标CORESET被配置了多个TCI状态;其中,该检测方式为以下三种方式之一:第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;第三方式为采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。

Description

信道传输的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及一种信道传输的方法、终端设备和网络设备。
背景技术
在新空口(New Radio,NR)***中,多个发送接收点(Transmission/Reception Point,TRP)可以发送相同的物理下行控制信道(Physical Downlink Control Channel,PDCCH)以提高PDCCH的检测性能。具体地,根据不同TRP发送的PDCCH是否采用单频网(Single Frequency Network,SFN)传输,可以分为如下两种增强方式:
增强方式一,多个TRP采用SFN的方式发送PDCCH,即多个TRP发送的PDCCH占用相同的物理资源(如相同的控制资源集(Control Resource Set,CORESET)和搜索空间)。从终端接收的角度,只需要检测一个PDCCH。由于不同TRP和终端之间的信道是不同的,网络设备需要为该PDCCH所在的CORESET配置多个传输配置指示(Transmission Configuration Indicator,TCI)状态,分别对应多个TRP。终端需要基于多个TCI状态获得PDCCH的大尺度参数和信道估计滤波器,从而进行该PDCCH的检测。增强方式一通常用于高速传输的场景(如高铁),通过SFN传输的方式增强PDCCH的信道强度,提高检测性能。
增强方式二,多个TRP采用重复传输的方式发送PDCCH,即多个TRP发送的PDCCH携带相同的控制信息,但是在不同的时域资源或频域资源上传输的。在终端侧,需要分别接收不同TRP发送的PDCCH,并将接收信号或检测到的控制信息进行合并,从而得到最终的检测结果。网络设备也需要为该PDCCH所在的CORESET配置多个TCI状态,分别对应多个TRP,不同的TCI状态用于不同PDCCH重复传输的检测。增强方式二可以用于高可靠低时延通信(Ultra-Reliable and Low Latency Communication,URLLC)的场景,通过不同TRP在不同资源上重复传输相同的控制信息,从而获得额外的分集增益,提高PDCCH检测性能。
然而,上述两种增强方式都需要通过给CORESET配置多个TCI状态来实现,即他们的配置信令是类似的。此种情况下,终端侧无法获知当前网络侧采用了哪种增强方式,也无法采用对应的方式进行PDCCH的检测。
发明内容
本申请实施例提供了一种信道传输的方法、终端设备和网络设备,终端设备在不知道当前所配置的多个TCI状态的目的和应用场景的情况下,可以根据其他配置,采用与网络侧发送方式对应的接收方式进行PDCCH的检测,从而提高PDCCH的检测性能。
第一方面,提供了一种信道传输的方法,该方法包括:
终端设备根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,其中,该目标CORESET被配置了多个TCI状态;
其中,该检测方式为以下三种方式之一:
第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;
第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
第三方式为采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。
第二方面,提供了一种信道传输的方法,该方法包括:
网络设备向终端设备发送第一配置信息和目标CORESET的多个TCI状态,其中,该第一配置信息用于该终端设备确定该目标CORESET中的PDCCH所采用的检测方式;
其中,该检测方式为以下三种方式之一:
第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;
第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
第三方式为采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。
第三方面,提供了一种终端设备,用于执行上述第一方面中的方法。
具体地,该终端设备包括用于执行上述第一方面中的方法的功能模块。
第四方面,提供了一种网络设备,用于执行上述第二方面中的方法。
具体地,该网络设备包括用于执行上述第二方面中的方法的功能模块。
第五方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面中的方法。
第六方面,提供了一种网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理 器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面中的方法。
第七方面,提供了一种装置,用于实现上述第一方面至第二方面中的任一方面中的方法。
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面中的方法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
通过上述技术方案,终端设备可以根据第一配置信息确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式。也即,终端设备在不知道当前所配置的多个TCI状态的目的和应用场景的情况下,可以根据其他配置,采用与网络侧发送方式对应的接收方式进行PDCCH的检测,从而提高PDCCH的检测性能。可以有效避免因为采用错误的方式进行PDCCH检测而导致的不能正确解调PDCCH的问题。
附图说明
图1是本申请实施例应用的一种通信***架构的示意性图。
图2是本申请提供的一种PDCCH的物理资源的示意性图。
图3是本申请提供的一种CORESET与搜索空间对应关系的示意性图。
图4是本申请提供的一种PDSCH的TCI状态配置的示意性图。
图5是根据本申请实施例提供的一种信道传输的方法的示意性流程图。
图6是根据本申请实施例提供的一种根据目标CORESET的时域资源配置信息确定检测方式的示意性图。
图7是根据本申请实施例提供的一种根据目标CORESET的重复配置信息确定检测方式的示意性图。
图8是根据本申请实施例提供的一种终端设备的示意性框图。
图9是根据本申请实施例提供的一种网络设备的示意性框图。
图10是根据本申请实施例提供的一种通信设备的示意性框图。
图11是根据本申请实施例提供的一种装置的示意性框图。
图12是根据本申请实施例提供的一种通信***的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、先进的长期演进(Advanced long term evolution,LTE-A)***、新空口(New Radio,NR)***、NR***的演进***、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)***、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)***、非地面通信网络(Non-Terrestrial Networks,NTN)***、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)***或其他通信***等。
通常来说,传统的通信***支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信***将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信***。
可选地,本申请实施例中的通信***可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请实施例中的通信***可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信***也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,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等。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、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)设备、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、下一代通信***例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。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。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,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。
示例性的,本申请实施例应用的通信***100如图1所示。该通信***100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110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进行通信。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信***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,本申请实施例对此不做限定。
可选地,该通信***100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/***中具有通信功能的设备可称为通信设备。以图1示出的通信***100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信***100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种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:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,“预定义”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中,所述“协议”可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信***中的相关协议,本申请对此不做限定。
为便于更好的理解本申请实施例,对本申请相关的NR下行控制信道进行说明。
在NR***中,终端设备通过网络侧配置的CORESET和搜索空间来确定检测PDCCH的资源。其中,CORESET用于确定PDCCH在一个时隙内的频域资源大小(如占用的物理资源块(physical resource block,PRB)数目)和时域资源大小(如占用的正交频分复用(Orthogonal frequency-division multiplexing,OFDM)符号数目),包括频域资源起始位置,频域资源长度和时域资源长度等。而搜索空间用于确定PDCCH的时域资源位置,包括时域资源起始位置和监测周期。根据一个CORESET和一个搜索空间配置,终端可以确定检测PDCCH的物理资源位置,如图2中阴影标识的资源。
具体地,网络侧通过高层信令配置最多三个CORESET,每个CORESET有自己的CORESET标识(Identity,ID)。同时,网络侧还可以通过高层信令配置至少一个搜索空间,每个搜索空间的配置参数包括关联的CORESET的ID,聚合等级,搜索空间类型等。每个搜索空间只能关联一个CORESET,但是一个CORESET可以关联多个搜索空间,如图3所示。其中,搜索空间类型包括该搜索空间为公共搜索空间(Common Search Space,CSS)还是终端设备专属搜索空间(UE Search Space,USS)的配置,以及终端需要在该搜索空间中需要检测的下行控制信息(Downlink Control Information,DCI)格式(format)。如果搜索空间为CSS,则搜索空间中的搜索空间类型(searchSpaceType)配置为公共(Common),且相应需要检测的DCI格式包括DCI format 2_0、DCI format 2_1、DCI format 2_2、DCI format 2_3、DCI format 0_0和DCI format 1_0等格式中的至少一个,即该DCI一般用于调度控制信息的传输。如果搜索空间是USS,则相应需要检测的DCI格式包括DCI format 0_0和DCI format 1_0(formats0-0-And-1-0),或者包括DCI format 0_1和DCI format 1_1(formats0-1-And-1-1),即该DCI一般用于调度上行或下行数据传输。
为便于更好的理解本申请实施例,对本申请相关的下行信号传输的准共址(Quasi-co-located,QCL)指示进行说明。
在NR***中,网络设备可以为每个下行信号或下行信道配置相应的TCI状态,指示目标下行信号或目标下行信道对应的QCL参考信号,从而终端基于该参考信号进行目标下行信号或目标下行信道的接收。
其中,一个TCI状态可以包含如下配置:
TCI状态ID,用于标识一个TCI状态;
QCL信息1;
QCL信息2。
其中,一个QCL信息又包含如下信息:
QCL类型(type)配置,可以是QCL type A,QCL type B,QCL type C,QCL type D中的一个;
QCL参考信号配置,包括参考信号所在的小区ID,带宽部分(Band Width Part,BWP)ID以及参考信号的标识(可以是信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS)资源ID或同步信号块(Synchronization Signal Block,SSB)索引)。
其中,QCL信息1和QCL信息2中的至少一个QCL信息的QCL类型必须为typeA,typeB,typeC 中的一个,另一个QCL信息(如果配置)的QCL类型必须为QCL type D。
其中,不同QCL类型配置的定义如下:
'QCL-TypeA':{多普勒频移(Doppler shift),多普勒扩展(Doppler spread),平均时延(average delay),延时扩展(delay spread)};
'QCL-TypeB':{多普勒频移(Doppler shift),多普勒扩展(Doppler spread)};
'QCL-TypeC':{多普勒频移(Doppler shift),平均时延(average delay)};
'QCL-TypeD':{空间接收参数(Spatial Rx parameter)}。
如果网络设备通过TCI状态配置目标下行信道的QCL参考信号为参考SSB或参考CSI-RS资源,且QCL类型配置为typeA,typeB或typeC,则终端设备可以假设所述目标下行信道与所述参考SSB或参考CSI-RS资源的目标大尺度参数是相同的,从而采用相同的相应接收参数进行接收,所述目标大尺度参数通过QCL类型配置来确定。类似的,如果网络设备通过TCI状态配置目标下行信道的QCL参考信号为参考SSB或参考CSI-RS资源,且QCL类型配置为type D,则终端设备可以采用与接收所述参考SSB或参考CSI-RS资源相同的接收波束(即Spatial Rx parameter),来接收所述目标下行信道。通常的,目标下行信道与其参考SSB或参考CSI-RS资源在网络侧由同一个TRP或者同一个天线面板(panel)或者相同的波束来发送。如果两个下行信号或下行信道的传输TRP或传输panel或发送波束不同,通常会配置不同的TCI状态。
对于下行控制信道,TCI状态可以通过无线资源控制(Radio Resource Control,RRC)信令或者RRC信令+MAC信令的方式来指示。对于下行数据信道,可用的TCI状态集合通过RRC信令来指示,并通过媒体接入控制(Media Access Control,MAC)层信令来激活其中部分TCI状态,最后通过DCI中的TCI状态指示域从激活的TCI状态中指示一个或两个TCI状态,用于所述DCI调度的PDSCH。例如,如图4所示,网络设备通过RRC信令指示N个候选的TCI状态,并通过MAC信令激活K个TCI状态,最后通过DCI中的TCI状态指示域从激活的TCI状态中指示1个或2个使用的TCI状态。
在NR***中,多个TRP可以发送相同的PDCCH以提高PDCCH的检测性能。具体地,根据不同TRP发送的PDCCH是否采用SFN传输,可以分为如下两种增强方式:
增强方式一,多个TRP采用SFN的方式发送PDCCH,即多个TRP发送的PDCCH占用相同的物理资源(如相同的CORESET和搜索空间)。从终端接收的角度,只需要检测一个PDCCH。由于不同TRP和终端之间的信道是不同的,网络设备需要为该PDCCH所在的CORESET配置多个TCI状态,分别对应多个TRP。终端需要基于多个TCI状态获得PDCCH的大尺度参数和信道估计滤波器,从而进行该PDCCH的检测。增强方式一通常用于高速传输的场景(如高铁),通过SFN传输的方式增强PDCCH的信道强度,提高检测性能。
增强方式二,多个TRP采用重复传输的方式发送PDCCH,即多个TRP发送的PDCCH携带相同的控制信息,但是在不同的时域资源或频域资源上传输的。在终端侧,需要分别接收不同TRP发送的PDCCH,并将接收信号或检测到的控制信息进行合并,从而得到最终的检测结果。网络设备也需要为该PDCCH所在的CORESET配置多个TCI状态,分别对应多个TRP,不同的TCI状态用于不同PDCCH重复传输的检测。增强方式二可以用于URLLC的场景,通过不同TRP在不同资源上重复传输相同的控制信息,从而获得额外的分集增益,提高PDCCH检测性能。
上述两种增强方式都能提高PDCCH的检测性能,但其应用场景和传输方式是不同的。相应的,终端的信道估计和PDCCH检测方式也不同。然而,上述两种增强方式都需要通过给CORESET配置多个TCI状态来实现,即他们的配置信令是类似的。此种情况下,终端侧无法获知当前网络侧采用了哪种增强方式,也无法采用对应的方式进行PDCCH的检测。如果采用了错误的方式,会影响PDCCH传输可靠性。
基于上述问题,本申请提出了一种信道传输的方案,终端设备在不知道当前所配置的多个TCI状态的目的和应用场景的情况下,可以根据其他配置,采用与网络侧发送方式对应的接收方式进行PDCCH的检测,从而提高PDCCH的检测性能。
以下通过具体实施例详述本申请的技术方案。
图5是根据本申请实施例的信道传输的方法200的示意性流程图,如图5所示,该方法200可以包括如下内容中的至少部分内容:
S210,网络设备向终端设备发送第一配置信息和目标CORESET的多个TCI状态,其中,该第一配置信息用于该终端设备确定该目标CORESET中的PDCCH所采用的检测方式;
S220,该终端设备接收该网络设备发送的该第一配置信息和该目标CORESET的多个TCI状态;
S230,该终端设备根据该第一配置信息,确定该目标CORESET中的PDCCH所采用的检测方式。
也就是说,在本申请实施例中,该目标CORESET被配置了多个TCI状态。
其中,该检测方式为以下三种方式之一:
第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;
第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
第三方式为采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。
可选地,在该第三方式中,该多个TCI状态中的一个TCI状态为该多个TCI状态中的第一个TCI状态,或者,该多个TCI状态中的一个TCI状态为该多个TCI状态中TCI状态索引最低的TCI状态。
需要说明的是,该第一方式和/或该第三方式可以类似于上述增强方式一,该第二方式可以类似于上述增强方式二。
具体地,在第一方式中,针对该目标CORESET中的每个PDCCH,终端设备都采用该多个TCI状态进行检测。例如,终端设备分别从该多个TCI状态得到多组信道大尺度参数,根据这些大尺度参数得到信道估计所用的滤波器,从而基于该滤波器和PDCCH DMRS进行每个PDCCH的信道估计,得到每个PDCCH的信道;基于得到的PDCCH信道进行PDCCH的检测。又例如,终端设备分别从该多个TCI状态得到多个接收波束;对于每一个PDCCH,基于这些接收波束分别进行PDCCH的接收;基于不同接收波束得到的PDCCH进行每一个PDCCH的检测。
具体地,在第二方式中,终端设备采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH。例如,网络设备可以给CORESET配置两个TCI状态,分别用于检测该目标CORESET中携带相同信息的两个不同的PDCCH。这两个PDCCH中携带的控制信息是相同的,但他们占用的时频资源可以不同,例如,可以占用不同的OFDM符号或者时隙。在另一种实现方式中,这两个PDCCH可以是两个PDCCH候选(candidate)中的PDCCH。
具体地,在第三方式中,终端设备只采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。换句话说,该多个TCI状态中的其他TCI状态不用于PDCCH检测。例如,该一个TCI状态可以为该多个TCI状态中的第一个TCI状态,或者为该多个TCI状态中的第二个TCI状态,或者为该多个TCI状态中TCI状态ID最低的TCI状态,或者为终端根据其他配置信息从该多个TCI状态中确定的TCI状态,以此类推。在一种实施方式中,网络设备给该目标CORESET配置两个TCI状态,但终端设备只采用其中第一个TCI状态,第二个TCI状态不用于PDCCH检测。
在一种实施方式中,终端设备可以根据该第一配置信息,从第一方式和第二方式中确定该目标CORESET中的PDCCH所采用的检测方式,即第一配置信息在一些配置下,该检测方式是第一方式,在另一些配置下,该检测方式是第二方式。或者,终端设备可以根据该第一配置信息,从第一方式和第三方式中确定该目标CORESET中的PDCCH所采用的检测方式,即第一配置信息在一些配置下,该检测方式是第一方式,在另一些配置下,该检测方式是第三方式。或者,终端设备可以根据该第一配置信息,从第二方式和第三方式中确定该目标CORESET中的PDCCH所采用的检测方式,即第一配置信息在一些配置下,该检测方式是第二方式,在另一些配置下,该检测方式是第三方式。或者,终端设备可以根据该第一配置信息,从第一方式,第二方式和第三方式中确定该目标CORESET中的PDCCH所采用的检测方式,即第一配置信息在一些配置下,该检测方式是第一方式,在另一些配置下,该检测方式是第二方式,在其他配置下,该检测方式是第三方式。
可选地,在本申请实施例中,该第一配置信息包括但不限于以下至少一种:
该目标CORESET的时域资源配置信息;
该目标CORESET的重复配置信息;
与该目标CORESET关联的搜索空间的配置;
该目标CORESET所在BWP上的物理下行共享信道(Physical Downlink Shared Channel,PDSCH)的传输方式配置。
需要说明的是,该终端设备可以基于该第一配置信息获取网络侧针对该目标CORESET中的PDCCH的发送方式,该终端设备可以根据该第一配置信息,确定采用与网络侧发送方式对应的接收方式进行PDCCH的检测,从而提高PDCCH的检测性能。
可选地,在一些实施例中,以下通过示例1至示例4详述S230。
示例1,该第一配置信息为该目标CORESET的时域资源配置信息。
其中,该时域资源配置信息中指示一组或多组用于发送PDCCH的时域资源。
具体地,在示例1中,S230具体可以是:
在该时域资源配置信息中指示一组用于发送PDCCH的时域资源的情况下,该终端设备确定采用该第一方式检测该目标CORESET中的PDCCH,或者,该终端设备确定采用该第三方式检测该目标CORESET中的PDCCH;
在该时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,该终端设备确定采用 该第二方式检测该目标CORESET中的PDCCH。
可选地,在示例1中,在该时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,该终端设备采用该多个TCI状态分别在该多组用于发送PDCCH的时域资源上检测该目标CORESET中携带相同信息的不同PDCCH。
可选地,在示例1中,在该时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,用于发送PDCCH的不同组时域资源占用同一时隙中的不同OFDM符号,或者,用于发送PDCCH的不同组时域资源占用相邻的下行时隙。
示例2,该第一配置信息为该目标CORESET的重复配置信息。
其中,该重复配置信息中指示是否进行PDCCH重复传输。
具体地,在示例2中,S230具体可以是:
在未通过该重复配置信息指示进行PDCCH重复传输的情况下,该终端设备确定采用该第一方式检测该目标CORESET中的PDCCH,或者,该终端设备确定采用该第三方式检测该目标CORESET中的PDCCH;
在通过该重复配置信息指示进行PDCCH重复传输的情况下,该终端设备确定采用该第二方式检测该目标CORESET中的PDCCH。
可选地,在示例2中,在通过该重复配置信息指示进行PDCCH重复传输的情况下,该终端设备采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
其中,该不同的PDCCH占用不同的时域资源,或者,该不同的PDCCH占用不同的频域资源,或者,该不同的PDCCH占用不同的PDCCH候选。
可选地,在示例2中,该重复配置信息还用于指示该目标CORESET中的PDCCH进行重复传输的方式。例如,可以用于指示PDCCH重复传输采用时分复用(time-division multiplexing,TDM)的方式还是频分复用(Frequency-division multiplexing,FDM)的方式。
示例3,该第一配置信息为与该目标CORESET关联的搜索空间的配置。
其中,该搜索空间的配置中包括N个TCI状态,其中N=0,或N=1,或N=2。
具体地,在示例3中,S230具体可以包括以下至少之一:
在该目标CORESET关联的搜索空间的配置中都未指示TCI状态的情况下,该终端设备确定采用该第一方式检测该目标CORESET中的PDCCH,或者,该终端设备确定采用该第三方式检测该目标CORESET中的PDCCH;
在该目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,该终端设备确定采用该第二方式检测该目标CORESET中的PDCCH;
在该目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态都相同的情况下,该终端设备确定采用该第三方式检测该目标CORESET中的PDCCH;
在该目标CORESET关联的搜索空间的配置中都指示了多个TCI状态的情况下,该终端设备确定采用该第一方式检测该目标CORESET中的PDCCH。
可选地,在示例3中,在该目标CORESET关联的搜索空间的配置中指示了TCI状态的情况下,该终端设备采用该目标CORESET关联的搜索空间的配置中所指示的TCI状态检测对应搜索空间中的PDCCH。例如,目标CORESET关联的第一搜索空间的配置中指示了TCI状态0,第二搜索空间的配置中指示了TCI状态1,则终端设备采用TCI状态0检测第一搜索空间中的PDCCH,采用TCI状态1检测第二搜索空间中的PDCCH。
可选地,在示例3中,在该目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,被配置不同TCI状态的搜索空间中分别承载携带相同信息的不同PDCCH。此时,终端设备在配置不同TCI状态的搜索空间中,采用所配置的TCI状态分别检测携带相同信息的不同PDCCH。
可选地,在示例3中,该终端设备接收该网络设备发送的第二配置信息,该第二配置信息用于为该目标CORESET关联的搜索空间配置所采用的TCI状态的索引。
示例4,该第一配置信息为该目标CORESET所在BWP上的PDSCH的传输方式配置。
其中,该传输方式配置用于指示采用多个TCI状态进行同一PDSCH的检测。
具体地,在示例4中,S230具体可以是:
在通过该传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,该终端设备确定采用该第一方式检测该目标CORESET中的PDCCH;
在未通过该传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,该终端设备确定采用该第二方式检测该目标CORESET中的PDCCH,或者,该终端设备确定采用该第三方式检测该目标CORESET中的PDCCH。
需要说明的是,PDSCH和PDCCH的TCI状态是独立配置的。PDSCH检测所用的多个TCI状态和PDCCH检测所用的多个TCI状态可以相同也可以不同。
可选地,在示例4中,在通过该传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,该PDSCH的每个解调参考信号(Demodulation Reference Signal,DMRS)端口都关联该多个TCI状态。
可选地,在一些实施例中,该终端设备可以基于所确定的检测方式,进行该目标CORESET中的PDCCH检测。
可选地,在该终端设备确定采用该第二方式检测该目标CORESET中的PDCCH的情况下,该终端设备将采用该多个TCI状态分别接收的PDCCH信号进行合并之后,再进行该PDCCH中的控制信息的检测。
以下通过实施例1至实施例4详述本申请信道传输方案。
实施例1,网络设备指示第一配置信息以及目标CORESET对应的多个TCI状态。该第一配置信息为目标CORESET的时域资源配置信息。
例如,网络设备可以通过RRC信令配置目标CORESET的时域资源配置信息,并通过MAC层信令指示该多个TCI状态。
典型的,该多个TCI状态为2个TCI状态。
在实施例1中,终端设备根据该第一配置信息,确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式。
其中,该检测方式为以下三种方式之一:
第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;
第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
第三方式为只采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。
具体地,在第一方式中,针对该目标CORESET中的每个PDCCH,终端设备都采用该多个TCI状态进行检测。例如,终端设备分别从该多个TCI状态得到多组信道大尺度参数;根据这些大尺度参数得到信道估计所用的滤波器,从而基于PDCCH DMRS进行信道估计,得到PDCCH的信道;基于得到的PDCCH信道进行PDCCH的检测。又例如,终端设备分别从该多个TCI状态得到多个接收波束;基于这些接收波束分别进行PDCCH的接收;基于不同接收波束得到的PDCCH进行PDCCH的检测。
具体地,在第二方式中,终端设备采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH。例如,网络设备可以给CORESET配置两个TCI状态,分别用于检测该目标CORESET中携带相同信息的两个不同的PDCCH。这两个PDCCH中携带的控制信息是相同的,但他们占用的时频资源可以不同,例如,可以占用不同的OFDM符号或者时隙。在另一种实现方式中,这两个PDCCH可以是两个PDCCH候选(candidate)中的PDCCH。
具体地,在第三方式中,终端设备只采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。换句话说,该多个TCI状态中的其他TCI状态不用于PDCCH检测。例如,该一个TCI状态可以为该多个TCI状态中的第一个TCI状态,或者为该多个TCI状态中的第二个TCI状态,或者为该多个TCI状态中TCI状态ID最低的TCI状态,以此类推。在一种实施方式中,网络设备给该目标CORESET配置两个TCI状态,但终端设备只采用其中第一个TCI状态,第二个TCI状态不用于PDCCH检测。
可选地,在实施例1的一种实施方式中,该终端设备可以根据该第一配置信息,从第一方式和第二方式中确定该目标CORESET中的PDCCH所采用的检测方式,当该第一配置信息指示第一配置时,采用第一方式,当该第一配置信息指示第二配置时,采用第二方式;或者,该终端设备可以根据该第一配置信息,从第一方式和第三方式中确定该目标CORESET中的PDCCH所采用的检测方式,当该第一配置信息指示第三配置时,采用第一方式,当该第一配置信息指示第四配置时,采用第三方式;或者,该终端设备可以根据该第一配置信息,从第二方式和第三方式中确定该目标CORESET中的PDCCH所采用的检测方式,当该第一配置信息指示第五配置时,采用第二方式,当该第一配置信息指示第六配置时,采用第三方式。
可选地,在实施例1的一种实现方式中,当目标CORESET的时域资源配置信息中指示一组用于发送PDCCH的时域资源时,终端设备确定采用第一方式检测目标CORESET中的PDCCH,如图6 中的A所示,每组时域资源包含两个OFDM符号;当目标CORESET的时域资源配置信息中指示多组用于发送PDCCH的时域资源时,终端设备确定采用第二方式检测所述CORESET中的PDCCH,如图6中的B所示,每组时域资源包含两个OFDM符号。
可选地,在实施例1的另一种实现方式中,当目标CORESET的时域资源配置信息中指示一组用于发送PDCCH的时域资源时,终端设备确定采用所述第三方式检测目标CORESET中的PDCCH,如图6中的C所示,每组时域资源包含两个OFDM符号;当目标CORESET的时域资源配置信息中指示多组用于发送PDCCH的时域资源时,终端设备确定采用第二方式检测目标CORESET中的PDCCH,如图6中的B所示,每组时域资源包含两个OFDM符号。
具体地,在实施例1中,当目标CORESET的时域资源配置信息中指示多组用于发送PDCCH的时域资源时,终端设备采用该多个TCI状态分别在该多组用于发送PDCCH的时域资源中检测携带相同信息的不同PDCCH。其中,用于发送PDCCH的不同组时域资源占用同一时隙中的不同OFDM符号,或者占用相邻的下行时隙,例如,占用相邻的下行时隙中的相同OFDM符号。例如,网络设备配置两组用于发送PDCCH的时域资源,终端设备在第一组时域资源中采用第一TCI状态检测第一PDCCH,在第二组时域资源中采用第二TCI状态检测第二PDCCH,该第一PDCCH和该第二PDCCH携带相同的控制信息。具体地,如图6中的B所示,每组时域资源包含不同时隙中的两个OFDM符号。
可选地,在实施例1中,终端设备采用确定的方式,进行目标CORESET中的PDCCH检测。
具体的,当终端设备确定采用第一方式检测目标CORESET中的PDCCH时,检测方法如前针对第一方式中的描述。
具体的,当终端设备确定采用第二方式检测目标CORESET中的PDCCH时,终端设备将采用该多个TCI状态分别接收的PDCCH信号进行合并后,再进行PDCCH中的控制信息的检测,检测方法如前针对第二方式中的描述。
具体的,当终端设备确定采用第三方式检测目标CORESET中的PDCCH时,检测方法如前针对第三方式中的描述。此时,终端设备只采用一个TCI状态得到的大尺度参数或接收波束来检测目标CORESET中的每个PDCCH。
实施例1重用了目标CORESET的时域资源配置信息来指示PDCCH的传输方式,不需要额外的信令开销,从而终端可以采用相应的方式进行检测,避免了PDCCH的错误检测。
实施例2,网络设备指示第一配置信息以及目标CORESET对应的多个TCI状态。其中,该第一配置信息为目标CORESET的重复配置信息。
具体的,网络设备可以在,目标CORESET的配置信息中包含该目标CORESET的重复配置信息。例如,该重复配置信息可以用于指示目标CORESET中的PDCCH是否进行重复传输。
在实施例2中,终端设备根据该第一配置信息,确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式。
关于检测方式的描述可以参考实施例1中相关描述,在此不再赘述。
可选地,在实施例2的一种实施方式中,当目标CORESET的重复配置信息中没有指示进行PDCCH重复传输时,终端设备确定采用第一方式检测目标CORESET中的PDCCH,如图7中的A所示;当目标CORESET的重复配置信息中指示进行PDCCH重复传输时,终端设备确定采用第二方式检测目标CORESET中的PDCCH,如图7中的B所示。
可选地,在实施例2的一种实施方式中,当目标CORESET的重复配置信息中没有指示进行PDCCH重复传输时,终端设备确定采用第三方式检测目标CORESET中的PDCCH,如图7中的C所示;当目标CORESET的重复配置信息中指示进行PDCCH重复传输时,终端设备确定采用第二方式检测目标CORESET中的PDCCH,如图7中的B所示。
具体地,在实施例2中,当目标CORESET的重复配置信息中指示进行PDCCH重复传输时,终端设备采用该多个TCI状态分别检测目标CORESET中携带相同信息的不同PDCCH,该不同的PDCCH占用不同的时域资源或频域资源或PDCCH候选(candidate)。例如,终端设备使用第一TCI状态检测第一PDCCH,采用第二TCI状态检测第二PDCCH,该第一PDCCH和该第二PDCCH携带相同的控制信息,且占用不同的OFDM符号,如图7中的B所示。
可选地,在实施例2中,目标CORESET的重复配置信息还用于指示目标CORESET中的PDCCH进行重复传输的方式。例如,目标CORESET的重复配置信息可以包含两比特信息,其中一个比特位表示不进行PDCCH重复传输,一个比特位表示采用不同的时域资源进行PDCCH重复传输,一个比特位表示采用不同的频域资源进行PDCCH重复传输,另外一个比特位预留。
可选地,在实施例2中,终端设备采用确定的方式,进行目标CORESET中的PDCCH检测。
具体的检测方式参见实施例1中的相关描述,在此不再赘述。
实施例2重用了目标CORESET的重复配置信息来指示PDCCH的传输方式,不需要额外的信令开销,从而终端可以采用相应的方式进行检测,避免了PDCCH的错误检测。
实施例3,网络设备指示第一配置信息以及目标CORESET对应的多个TCI状态。其中,该第一配置信息为与目标CORESET关联的搜索空间的配置。
在一种实施方式中,网络设备可以在目标CORESET关联的搜索空间的配置信息中包含TCI状态索引的指示信息,用于指示该搜索空间中的PDCCH所用的TCI状态在该多个TCI状态中的索引。该目标CORESET关联的不同搜索空间可以配置相同的TCI状态索引,也可以配置不同的TCI状态索引;可以配置相同数量的TCI状态索引,也可以配置不同数量的TCI状态索引。例如,该数量可以为0个,1个或2个。
在实施例3中,终端设备根据该第一配置信息,确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式。
关于检测方式的描述可以参考实施例1中相关描述,在此不再赘述。
可选地,在实施例3的一种实施方式中,终端设备可以采用以下方式的组合,来确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式:
方式一,当目标CORESET关联的搜索空间的配置中都未指示TCI状态,终端设备确定采用第一方式检测目标CORESET中的PDCCH。
方式二,当目标CORESET关联的搜索空间的配置中都未指示TCI状态,终端设备确定采用第三方式检测目标CORESET中的PDCCH。
方式三,当目标CORESET关联的每个搜索空间的配置中都指示1个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同时,终端设备确定采用第二方式检测目标CORESET中的PDCCH。例如,目标CORESET关联的第一搜索空间和第二搜索空间的配置中都指示了一个TCI状态,其中第一搜索空间的配置中指示了TCI状态0,第二搜索空间的配置中指示了TCI状态1。
方式四,当目标CORESET关联的每个搜索空间的配置中都指示1个TCI状态,且不同搜索空间的配置中指示的TCI状态都相同时,终端设备确定采用第三方式检测目标CORESET中的PDCCH。例如,目标CORESET关联的所有搜索空间的配置中都指示了TCI状态0。
方式五,当目标CORESET关联的搜索空间的配置中都指示了2个TCI状态时,终端设备确定采用第一方式检测目标CORESET中的PDCCH。例如,目标CORESET关联的所有搜索空间的配置中都指示了TCI状态0和TCI状态1。
可选地,在实施例3的一种实施方式中,终端设备采用与目标CORESET关联的搜索空间的配置中所指示的TCI状态检测对应搜索空间中的PDCCH。例如,目标CORESET关联的第一搜索空间的配置中指示了TCI状态0,第二搜索空间的配置中指示了TCI状态1,则终端设备采用TCI状态0检测第一搜索空间中的PDCCH,采用TCI状态1检测第二搜索空间中的PDCCH。
可选地,在实施例3的一种实施方式中,当目标CORESET关联的每个搜索空间的配置中都指示1个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同时,被配置不同TCI状态的搜索空间中分别承载携带相同信息的不同PDCCH。此时,终端设备在配置不同TCI状态的搜索空间中,采用所配置的TCI状态分别检测携带相同信息的不同PDCCH。
可选地,在实施例3中,终端设备采用确定的方式,进行目标CORESET中的PDCCH检测。
具体的检测方式参见实施例1中的相关描述,在此不再赘述。
实施例3重用了目标CORESET关联的每个搜索空间的配置来指示PDCCH的传输方式,不需要额外的信令开销,从而终端可以采用相应的方式进行检测,避免了PDCCH的错误检测。
实施例4,网络设备指示第一配置信息以及目标CORESET对应的多个TCI状态。其中,该第一配置信息为目标CORESET所在BWP上的PDSCH的传输方式配置。
具体的,网络设备可以通过物理层信令或高层信令,为一个BWP上的PDSCH配置相应的传输方式。例如,传输方式为采用多个TCI状态进行同一PDSCH的检测。此时,终端设备可以认为同一BWP上的PDCCH也采用类似的传输方式,从而采用第一方式进行检测。
在实施例4中,终端设备根据该第一配置信息,确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式。
关于检测方式的描述可以参考实施例1中相关描述,在此不再赘述。
可选地,在实施例4的一种实施方式中,当目标CORESET所在BWP上的PDSCH的传输方式配置指示采用多个TCI状态进行同一PDSCH的检测时,终端设备确定采用第一方式检测目标CORESET中的PDCCH;否则,终端设备确定采用第二方式检测目标CORESET中的PDCCH。
可选地,在实施例4的另一种实施方式中,当目标CORESET所在BWP上的PDSCH的传输方式配置指示采用多个TCI状态进行同一PDSCH的检测时,终端设备确定采用第一方式检测目标CORESET中的PDCCH;否则,终端设备确定采用第三方式检测目标CORESET中的PDCCH。
具体的,在实施例4中,网络设备可以为PDSCH的每个DMRS端口关联多个TCI状态,以指示终端设备此时需要采用多个TCI状态进行同一PDSCH的检测。因此,上述判断条件中的“采用多个TCI状态进行同一PDSCH的检测”,也可以替换为“PDSCH的每个DMRS端口关联多个TCI状态”。
可选地,在实施例4中,终端设备采用确定的方式,进行目标CORESET中的PDCCH检测。
具体的检测方式参见实施例1中的相关描述,在此不再赘述。
实施例4利用PDSCH和PDCCH传输方案和应用场景的一致性,重用了PDSCH的传输方式配置来指示PDCCH的传输方式,不需要额外的信令开销,从而终端可以采用相应的方式进行检测,避免了PDCCH的错误检测。
因此,在本申请实施例中,终端设备可以根据第一配置信息确定被配置了多个TCI状态的目标CORESET中的PDCCH所采用的检测方式。也即,终端设备在不知道当前所配置的多个TCI状态的目的和应用场景的情况下,可以根据其他配置,采用与网络侧发送方式对应的接收方式进行PDCCH的检测,从而提高PDCCH的检测性能。可以有效避免因为采用错误的方式进行PDCCH检测而导致的不能正确解调PDCCH的问题。
上文结合图5至图7,详细描述了本申请的方法实施例,下文结合图8至图12,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图8示出了根据本申请实施例的终端设备300的示意性框图。如图8所示,该终端设备300包括:
处理单元310,用于根据第一配置信息,确定目标控制资源集CORESET中的物理下行控制信道PDCCH所采用的检测方式,其中,该目标CORESET被配置了多个传输配置指示TCI状态;
其中,该检测方式为以下三种方式之一:
第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;
第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
第三方式为采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。
可选地,该第一配置信息包括以下至少一种:
该目标CORESET的时域资源配置信息;
该目标CORESET的重复配置信息;
与该目标CORESET关联的搜索空间的配置;
该目标CORESET所在带宽部分BWP上的物理下行共享信道PDSCH的传输方式配置。
可选地,该第一配置信息为该目标CORESET的时域资源配置信息;
该处理单元310具体用于:
在该时域资源配置信息中指示一组用于发送PDCCH的时域资源的情况下,确定采用该第一方式检测该目标CORESET中的PDCCH,或者,确定采用该第三方式检测该目标CORESET中的PDCCH;
在该时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,确定采用该第二方式检测该目标CORESET中的PDCCH。
可选地,该终端设备300还包括:通信单元320,其中,
在该时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,该通信单元320用于采用该多个TCI状态分别在该多组用于发送PDCCH的时域资源上检测该目标CORESET中携带相同信息的不同PDCCH。
可选地,在该时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,用于发送PDCCH的不同组时域资源占用同一时隙中的不同正交频分复用OFDM符号,或者,用于发送PDCCH的不同组时域资源占用相邻的下行时隙。
可选地,该第一配置信息为该目标CORESET的重复配置信息;
该处理单元310具体用于:
在未通过该重复配置信息指示进行PDCCH重复传输的情况下,确定采用该第一方式检测该目标CORESET中的PDCCH,或者,确定采用该第三方式检测该目标CORESET中的PDCCH;
在通过该重复配置信息指示进行PDCCH重复传输的情况下,确定采用该第二方式检测该目标CORESET中的PDCCH。
可选地,该终端设备300还包括:通信单元320,其中,
在通过该重复配置信息指示进行PDCCH重复传输的情况下,该通信单元用于采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
其中,该不同的PDCCH占用不同的时域资源,或者,该不同的PDCCH占用不同的频域资源,或者,该不同的PDCCH占用不同的PDCCH候选。
可选地,该重复配置信息还用于指示该目标CORESET中的PDCCH进行重复传输的方式。
可选地,该第一配置信息为与该目标CORESET关联的搜索空间的配置;
该处理单元310根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,包括以下至少之一:
在该目标CORESET关联的搜索空间的配置中都未指示TCI状态的情况下,该处理单元310确定采用该第一方式检测该目标CORESET中的PDCCH,或者,该处理单元310确定采用该第三方式检测该目标CORESET中的PDCCH;
在该目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,该处理单元310确定采用该第二方式检测该目标CORESET中的PDCCH;
在该目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态都相同的情况下,该处理单元310确定采用该第三方式检测该目标CORESET中的PDCCH;
在该目标CORESET关联的搜索空间的配置中都指示了多个TCI状态的情况下,该处理单元310确定采用该第一方式检测该目标CORESET中的PDCCH。
可选地,该终端设备300还包括:通信单元320,其中,
在该目标CORESET关联的搜索空间的配置中指示了TCI状态的情况下,该通信单元320用于采用该目标CORESET关联的搜索空间的配置中所指示的TCI状态检测对应搜索空间中的PDCCH。
可选地,在该目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,被配置不同TCI状态的搜索空间中分别承载携带相同信息的不同PDCCH。
可选地,该终端设备300还包括:
通信单元320,用于接收第二配置信息,该第二配置信息用于为该目标CORESET关联的搜索空间配置所采用的TCI状态的索引。
可选地,该第一配置信息为该目标CORESET所在BWP上的PDSCH的传输方式配置;
该处理单元310具体用于:
在通过该传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,确定采用该第一方式检测该目标CORESET中的PDCCH;
在未通过该传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,确定采用该第二方式检测该目标CORESET中的PDCCH,或者,确定采用该第三方式检测该目标CORESET中的PDCCH。
可选地,在通过该传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,该PDSCH的每个解调参考信号DMRS端口都关联该多个TCI状态。
可选地,在该第三方式中,该多个TCI状态中的一个TCI状态为该多个TCI状态中的第一个TCI状态,或者,该多个TCI状态中的一个TCI状态为该多个TCI状态中TCI状态索引最低的TCI状态。
可选地,该终端设备300还包括:
通信单元320,用于在该终端设备确定采用该第二方式检测该目标CORESET中的PDCCH的情况下,将采用该多个TCI状态分别接收的PDCCH信号进行合并之后,再进行该PDCCH中的控制信息的检测。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上***的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备300可对应于本申请方法实施例中的终端设备,并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图5所示方法200中终端设备的相应流程,为了简洁,在此不再赘述。
图9示出了根据本申请实施例的网络设备400的示意性框图。如图9所示,该网络设备400包括:
通信单元410,用于向终端设备发送第一配置信息和目标控制资源集CORESET的多个传输配置指示TCI状态,其中,该第一配置信息用于该终端设备确定该目标CORESET中的物理下行控制信道PDCCH所采用的检测方式;
其中,该检测方式为以下三种方式之一:
第一方式为采用该多个TCI状态检测该目标CORESET中的每个PDCCH;
第二方式为采用该多个TCI状态分别检测该目标CORESET中携带相同信息的不同PDCCH;
第三方式为采用该多个TCI状态中的一个TCI状态检测该目标CORESET中的每个PDCCH。
可选地,该第一配置信息包括以下至少一种:
该目标CORESET的时域资源配置信息;
该目标CORESET的重复配置信息;
与该目标CORESET关联的搜索空间的配置;
该目标CORESET所在带宽部分BWP上的物理下行共享信道PDSCH的传输方式配置。
可选地,该第一配置信息为该目标CORESET的时域资源配置信息,且该时域资源配置信息中指示一组或多组用于发送PDCCH的时域资源。
可选地,该第一配置信息为该目标CORESET的重复配置信息,且该重复配置信息中指示是否进行PDCCH重复传输。
可选地,该重复配置信息还用于指示该目标CORESET中的PDCCH进行重复传输的方式。
可选地,该第一配置信息为与该目标CORESET关联的搜索空间的配置,且该搜索空间的配置中包括N个TCI状态,其中N=0,或N=1,或N=2。
可选地,该第一配置信息为该目标CORESET所在BWP上的PDSCH的传输方式配置,且该传输方式配置用于指示采用多个TCI状态进行同一PDSCH的检测。
可选地,在该第三方式中,该多个TCI状态中的一个TCI状态为该多个TCI状态中的第一个TCI状态,或者,该多个TCI状态中的一个TCI状态为该多个TCI状态中TCI状态索引最低的TCI状态。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上***的输入输出接口。
应理解,根据本申请实施例的网络设备400可对应于本申请方法实施例中的网络设备,并且网络设备400中的各个单元的上述和其它操作和/或功能分别为了实现图5所示方法200中网络设备的相应流程,为了简洁,在此不再赘述。
图10是本申请实施例提供的一种通信设备500示意性结构图。图10所示的通信设备500包括处理器510,处理器510可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图10所示,通信设备500还可以包括存储器520。其中,处理器510可以从存储器520中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器520可以是独立于处理器510的一个单独的器件,也可以集成在处理器510中。
可选地,如图10所示,通信设备500还可以包括收发器530,处理器510可以控制该收发器530与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器530可以包括发射机和接收机。收发器530还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备500具体可为本申请实施例的网络设备,并且该通信设备500可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备500具体可为本申请实施例的移动终端/终端设备,并且该通信设备500可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
图11是本申请实施例的装置的示意性结构图。图11所示的装置600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图11所示,装置600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,该装置600还可以包括输入接口630。其中,处理器610可以控制该输入接口630与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该装置600还可以包括输出接口640。其中,处理器610可以控制该输出接口640与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该装置可应用于本申请实施例中的网络设备,并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该装置可应用于本申请实施例中的移动终端/终端设备,并且该装置可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,本申请实施例提到的装置也可以是芯片。例如可以是***级芯片,***芯片,芯片***或片上***芯片等。
图12是本申请实施例提供的一种通信***700的示意性框图。如图12所示,该通信***700包 括终端设备710和网络设备720。
其中,该终端设备710可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备720可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)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。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该处理器也可以是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译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、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***,或一些特征可以忽略,或不执行。另一点,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,可以是电性,机械或其它的形式。
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实施例方案的目的。
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,也可以两个或两个以上单元集成在一个单元中。
所述功能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。针对这样的理解,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所述以权利要求的保护范围为准。

Claims (58)

  1. 一种信道传输的方法,其特征在于,包括:
    终端设备根据第一配置信息,确定目标控制资源集CORESET中的物理下行控制信道PDCCH所采用的检测方式,其中,所述目标CORESET被配置了多个传输配置指示TCI状态;
    其中,所述检测方式为以下三种方式之一:
    第一方式为采用所述多个TCI状态检测所述目标CORESET中的每个PDCCH;
    第二方式为采用所述多个TCI状态分别检测所述目标CORESET中携带相同信息的不同PDCCH;
    第三方式为采用所述多个TCI状态中的一个TCI状态检测所述目标CORESET中的每个PDCCH。
  2. 如权利要求1所述的方法,其特征在于,所述第一配置信息包括以下至少一种:
    所述目标CORESET的时域资源配置信息;
    所述目标CORESET的重复配置信息;
    与所述目标CORESET关联的搜索空间的配置;
    所述目标CORESET所在带宽部分BWP上的物理下行共享信道PDSCH的传输方式配置。
  3. 如权利要求1或2所述的方法,其特征在于,所述第一配置信息为所述目标CORESET的时域资源配置信息;
    所述终端设备根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,包括:
    在所述时域资源配置信息中指示一组用于发送PDCCH的时域资源的情况下,所述终端设备确定采用所述第一方式检测所述目标CORESET中的PDCCH,或者,所述终端设备确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在所述时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,所述终端设备确定采用所述第二方式检测所述目标CORESET中的PDCCH。
  4. 如权利要求3所述的方法,其特征在于,所述方法还包括:
    在所述时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,所述终端设备采用所述多个TCI状态分别在所述多组用于发送PDCCH的时域资源上检测所述目标CORESET中携带相同信息的不同PDCCH。
  5. 如权利要求3或4所述的方法,其特征在于,在所述时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,用于发送PDCCH的不同组时域资源占用同一时隙中的不同正交频分复用OFDM符号,或者,用于发送PDCCH的不同组时域资源占用相邻的下行时隙。
  6. 如权利要求1或2所述的方法,其特征在于,所述第一配置信息为所述目标CORESET的重复配置信息;
    所述终端设备根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,包括:
    在未通过所述重复配置信息指示进行PDCCH重复传输的情况下,所述终端设备确定采用所述第一方式检测所述目标CORESET中的PDCCH,或者,所述终端设备确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在通过所述重复配置信息指示进行PDCCH重复传输的情况下,所述终端设备确定采用所述第二方式检测所述目标CORESET中的PDCCH。
  7. 如权利要求6所述的方法,其特征在于,所述方法还包括:
    在通过所述重复配置信息指示进行PDCCH重复传输的情况下,所述终端设备采用所述多个TCI状态分别检测所述目标CORESET中携带相同信息的不同PDCCH;
    其中,所述不同的PDCCH占用不同的时域资源,或者,所述不同的PDCCH占用不同的频域资源,或者,所述不同的PDCCH占用不同的PDCCH候选。
  8. 如权利要求6或7所述的方法,其特征在于,所述重复配置信息还用于指示所述目标CORESET中的PDCCH进行重复传输的方式。
  9. 如权利要求1或2所述的方法,其特征在于,所述第一配置信息为与所述目标CORESET关联的搜索空间的配置;
    所述终端设备根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,包括以下至少之一:
    在所述目标CORESET关联的搜索空间的配置中都未指示TCI状态的情况下,所述终端设备确定采用所述第一方式检测所述目标CORESET中的PDCCH,或者,所述终端设备确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在所述目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,所述终端设备确定采用所述第二方式检测所述目标 CORESET中的PDCCH;
    在所述目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态都相同的情况下,所述终端设备确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在所述目标CORESET关联的搜索空间的配置中都指示了多个TCI状态的情况下,所述终端设备确定采用所述第一方式检测所述目标CORESET中的PDCCH。
  10. 如权利要求9所述的方法,其特征在于,所述方法还包括:
    在所述目标CORESET关联的搜索空间的配置中指示了TCI状态的情况下,所述终端设备采用所述目标CORESET关联的搜索空间的配置中所指示的TCI状态检测对应搜索空间中的PDCCH。
  11. 如权利要求9或10所述的方法,其特征在于,在所述目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,被配置不同TCI状态的搜索空间中分别承载携带相同信息的不同PDCCH。
  12. 如权利要求9至11中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收第二配置信息,所述第二配置信息用于为所述目标CORESET关联的搜索空间配置所采用的TCI状态的索引。
  13. 如权利要求1或2所述的方法,其特征在于,所述第一配置信息为所述目标CORESET所在BWP上的PDSCH的传输方式配置;
    所述终端设备根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,包括:
    在通过所述传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,所述终端设备确定采用所述第一方式检测所述目标CORESET中的PDCCH;
    在未通过所述传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,所述终端设备确定采用所述第二方式检测所述目标CORESET中的PDCCH,或者,所述终端设备确定采用所述第三方式检测所述目标CORESET中的PDCCH。
  14. 如权利要求13所述的方法,其特征在于,在通过所述传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,所述PDSCH的每个解调参考信号DMRS端口都关联所述多个TCI状态。
  15. 如权利要求1至14中任一项所述的方法,其特征在于,
    在所述第三方式中,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中的第一个TCI状态,或者,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中TCI状态索引最低的TCI状态。
  16. 如权利要求1至15中任一项所述的方法,其特征在于,所述方法还包括:
    在所述终端设备确定采用所述第二方式检测所述目标CORESET中的PDCCH的情况下,所述终端设备将采用所述多个TCI状态分别接收的PDCCH信号进行合并之后,再进行所述PDCCH中的控制信息的检测。
  17. 一种信道传输的方法,其特征在于,包括:
    网络设备向终端设备发送第一配置信息和目标控制资源集CORESET的多个传输配置指示TCI状态,其中,所述第一配置信息用于所述终端设备确定所述目标CORESET中的物理下行控制信道PDCCH所采用的检测方式;
    其中,所述检测方式为以下三种方式之一:
    第一方式为采用所述多个TCI状态检测所述目标CORESET中的每个PDCCH;
    第二方式为采用所述多个TCI状态分别检测所述目标CORESET中携带相同信息的不同PDCCH;
    第三方式为采用所述多个TCI状态中的一个TCI状态检测所述目标CORESET中的每个PDCCH。
  18. 如权利要求17所述的方法,其特征在于,所述第一配置信息包括以下至少一种:
    所述目标CORESET的时域资源配置信息;
    所述目标CORESET的重复配置信息;
    与所述目标CORESET关联的搜索空间的配置;
    所述目标CORESET所在带宽部分BWP上的物理下行共享信道PDSCH的传输方式配置。
  19. 如权利要求17或18所述的方法,其特征在于,所述第一配置信息为所述目标CORESET的时域资源配置信息,且所述时域资源配置信息中指示一组或多组用于发送PDCCH的时域资源。
  20. 如权利要求17或18所述的方法,其特征在于,所述第一配置信息为所述目标CORESET的重复配置信息,且所述重复配置信息中指示是否进行PDCCH重复传输。
  21. 如权利要求20所述的方法,其特征在于,所述重复配置信息还用于指示所述目标CORESET 中的PDCCH进行重复传输的方式。
  22. 如权利要求17或18所述的方法,其特征在于,所述第一配置信息为与所述目标CORESET关联的搜索空间的配置,且所述搜索空间的配置中包括N个TCI状态,其中N=0,或N=1,或N=2。
  23. 如权利要求17或18所述的方法,其特征在于,所述第一配置信息为所述目标CORESET所在BWP上的PDSCH的传输方式配置,且所述传输方式配置用于指示采用多个TCI状态进行同一PDSCH的检测。
  24. 如权利要求17至23中任一项所述的方法,其特征在于,
    在所述第三方式中,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中的第一个TCI状态,或者,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中TCI状态索引最低的TCI状态。
  25. 一种终端设备,其特征在于,包括:
    处理单元,用于根据第一配置信息,确定目标控制资源集CORESET中的物理下行控制信道PDCCH所采用的检测方式,其中,所述目标CORESET被配置了多个传输配置指示TCI状态;
    其中,所述检测方式为以下三种方式之一:
    第一方式为采用所述多个TCI状态检测所述目标CORESET中的每个PDCCH;
    第二方式为采用所述多个TCI状态分别检测所述目标CORESET中携带相同信息的不同PDCCH;
    第三方式为采用所述多个TCI状态中的一个TCI状态检测所述目标CORESET中的每个PDCCH。
  26. 如权利要求25所述的终端设备,其特征在于,所述第一配置信息包括以下至少一种:
    所述目标CORESET的时域资源配置信息;
    所述目标CORESET的重复配置信息;
    与所述目标CORESET关联的搜索空间的配置;
    所述目标CORESET所在带宽部分BWP上的物理下行共享信道PDSCH的传输方式配置。
  27. 如权利要求25或26所述的终端设备,其特征在于,所述第一配置信息为所述目标CORESET的时域资源配置信息;
    所述处理单元具体用于:
    在所述时域资源配置信息中指示一组用于发送PDCCH的时域资源的情况下,确定采用所述第一方式检测所述目标CORESET中的PDCCH,或者,确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在所述时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,确定采用所述第二方式检测所述目标CORESET中的PDCCH。
  28. 如权利要求27所述的终端设备,其特征在于,所述终端设备还包括:通信单元,其中,
    在所述时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,所述通信单元用于采用所述多个TCI状态分别在所述多组用于发送PDCCH的时域资源上检测所述目标CORESET中携带相同信息的不同PDCCH。
  29. 如权利要求27或28所述的终端设备,其特征在于,在所述时域资源配置信息中指示多组用于发送PDCCH的时域资源的情况下,用于发送PDCCH的不同组时域资源占用同一时隙中的不同正交频分复用OFDM符号,或者,用于发送PDCCH的不同组时域资源占用相邻的下行时隙。
  30. 如权利要求25或26所述的终端设备,其特征在于,所述第一配置信息为所述目标CORESET的重复配置信息;
    所述处理单元具体用于:
    在未通过所述重复配置信息指示进行PDCCH重复传输的情况下,确定采用所述第一方式检测所述目标CORESET中的PDCCH,或者,确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在通过所述重复配置信息指示进行PDCCH重复传输的情况下,确定采用所述第二方式检测所述目标CORESET中的PDCCH。
  31. 如权利要求30所述的终端设备,其特征在于,所述终端设备还包括:通信单元,其中,
    在通过所述重复配置信息指示进行PDCCH重复传输的情况下,所述通信单元用于采用所述多个TCI状态分别检测所述目标CORESET中携带相同信息的不同PDCCH;
    其中,所述不同的PDCCH占用不同的时域资源,或者,所述不同的PDCCH占用不同的频域资源,或者,所述不同的PDCCH占用不同的PDCCH候选。
  32. 如权利要求30或31所述的终端设备,其特征在于,所述重复配置信息还用于指示所述目标CORESET中的PDCCH进行重复传输的方式。
  33. 如权利要求25或26所述的终端设备,其特征在于,所述第一配置信息为与所述目标CORESET 关联的搜索空间的配置;
    所述处理单元根据第一配置信息,确定目标CORESET中的PDCCH所采用的检测方式,包括以下至少之一:
    在所述目标CORESET关联的搜索空间的配置中都未指示TCI状态的情况下,所述处理单元确定采用所述第一方式检测所述目标CORESET中的PDCCH,或者,所述处理单元确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在所述目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,所述处理单元确定采用所述第二方式检测所述目标CORESET中的PDCCH;
    在所述目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态都相同的情况下,所述处理单元确定采用所述第三方式检测所述目标CORESET中的PDCCH;
    在所述目标CORESET关联的搜索空间的配置中都指示了多个TCI状态的情况下,所述处理单元确定采用所述第一方式检测所述目标CORESET中的PDCCH。
  34. 如权利要求33所述的终端设备,其特征在于,所述终端设备还包括:通信单元,其中,
    在所述目标CORESET关联的搜索空间的配置中指示了TCI状态的情况下,所述通信单元用于采用所述目标CORESET关联的搜索空间的配置中所指示的TCI状态检测对应搜索空间中的PDCCH。
  35. 如权利要求33或34所述的终端设备,其特征在于,在所述目标CORESET关联的每个搜索空间的配置中都指示一个TCI状态,且不同搜索空间的配置中指示的TCI状态不完全相同的情况下,被配置不同TCI状态的搜索空间中分别承载携带相同信息的不同PDCCH。
  36. 如权利要求33至35中任一项所述的终端设备,其特征在于,所述终端设备还包括:
    通信单元,用于接收第二配置信息,所述第二配置信息用于为所述目标CORESET关联的搜索空间配置所采用的TCI状态的索引。
  37. 如权利要求25或26所述的终端设备,其特征在于,所述第一配置信息为所述目标CORESET所在BWP上的PDSCH的传输方式配置;
    所述处理单元具体用于:
    在通过所述传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,确定采用所述第一方式检测所述目标CORESET中的PDCCH;
    在未通过所述传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,确定采用所述第二方式检测所述目标CORESET中的PDCCH,或者,确定采用所述第三方式检测所述目标CORESET中的PDCCH。
  38. 如权利要求37所述的终端设备,其特征在于,在通过所述传输方式配置指示采用多个TCI状态进行同一PDSCH的检测的情况下,所述PDSCH的每个解调参考信号DMRS端口都关联所述多个TCI状态。
  39. 如权利要求25至38中任一项所述的终端设备,其特征在于,
    在所述第三方式中,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中的第一个TCI状态,或者,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中TCI状态索引最低的TCI状态。
  40. 如权利要求25至39中任一项所述的终端设备,其特征在于,所述终端设备还包括:
    通信单元,用于在所述终端设备确定采用所述第二方式检测所述目标CORESET中的PDCCH的情况下,将采用所述多个TCI状态分别接收的PDCCH信号进行合并之后,再进行所述PDCCH中的控制信息的检测。
  41. 一种网络设备,其特征在于,包括:
    通信单元,用于向终端设备发送第一配置信息和目标控制资源集CORESET的多个传输配置指示TCI状态,其中,所述第一配置信息用于所述终端设备确定所述目标CORESET中的物理下行控制信道PDCCH所采用的检测方式;
    其中,所述检测方式为以下三种方式之一:
    第一方式为采用所述多个TCI状态检测所述目标CORESET中的每个PDCCH;
    第二方式为采用所述多个TCI状态分别检测所述目标CORESET中携带相同信息的不同PDCCH;
    第三方式为采用所述多个TCI状态中的一个TCI状态检测所述目标CORESET中的每个PDCCH。
  42. 如权利要求41所述的网络设备,其特征在于,所述第一配置信息包括以下至少一种:
    所述目标CORESET的时域资源配置信息;
    所述目标CORESET的重复配置信息;
    与所述目标CORESET关联的搜索空间的配置;
    所述目标CORESET所在带宽部分BWP上的物理下行共享信道PDSCH的传输方式配置。
  43. 如权利要求41或42所述的网络设备,其特征在于,所述第一配置信息为所述目标CORESET的时域资源配置信息,且所述时域资源配置信息中指示一组或多组用于发送PDCCH的时域资源。
  44. 如权利要求41或42所述的网络设备,其特征在于,所述第一配置信息为所述目标CORESET的重复配置信息,且所述重复配置信息中指示是否进行PDCCH重复传输。
  45. 如权利要求44所述的网络设备,其特征在于,所述重复配置信息还用于指示所述目标CORESET中的PDCCH进行重复传输的方式。
  46. 如权利要求41或42所述的网络设备,其特征在于,所述第一配置信息为与所述目标CORESET关联的搜索空间的配置,且所述搜索空间的配置中包括N个TCI状态,其中N=0,或N=1,或N=2。
  47. 如权利要求41或46所述的网络设备,其特征在于,所述第一配置信息为所述目标CORESET所在BWP上的PDSCH的传输方式配置,且所述传输方式配置用于指示采用多个TCI状态进行同一PDSCH的检测。
  48. 如权利要求41至47中任一项所述的网络设备,其特征在于,
    在所述第三方式中,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中的第一个TCI状态,或者,所述多个TCI状态中的一个TCI状态为所述多个TCI状态中TCI状态索引最低的TCI状态。
  49. 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至16中任一项所述的方法。
  50. 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求17至24中任一项所述的方法。
  51. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至16中任一项所述的方法。
  52. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求17至24中任一项所述的方法。
  53. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至16中任一项所述的方法。
  54. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求17至24中任一项所述的方法。
  55. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至16中任一项所述的方法。
  56. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求17至24中任一项所述的方法。
  57. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至16中任一项所述的方法。
  58. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求17至24中任一项所述的方法。
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