WO2022143459A1 - Qcl关系确定方法、装置、节点和存储介质 - Google Patents

Qcl关系确定方法、装置、节点和存储介质 Download PDF

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Publication number
WO2022143459A1
WO2022143459A1 PCT/CN2021/141204 CN2021141204W WO2022143459A1 WO 2022143459 A1 WO2022143459 A1 WO 2022143459A1 CN 2021141204 W CN2021141204 W CN 2021141204W WO 2022143459 A1 WO2022143459 A1 WO 2022143459A1
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Prior art keywords
reference signal
time
qcl
information
relationship
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English (en)
French (fr)
Inventor
叶新泉
张淑娟
陈艺戬
郁光辉
鲁照华
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ZTE Corp
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ZTE Corp
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Priority to EP21914196.7A priority Critical patent/EP4274336A4/en
Priority to US18/259,872 priority patent/US12580631B2/en
Priority to CA3202934A priority patent/CA3202934A1/en
Publication of WO2022143459A1 publication Critical patent/WO2022143459A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06968—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping using quasi-colocation [QCL] between signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present application relates to the field of wireless communication technologies, for example, to a method, apparatus, node and storage medium for determining a QCL relationship.
  • the two antenna ports are called Quasi-Co-Location (QCL), such as the first reference signal If the second reference signal and the second reference signal satisfy the QCL, then the second reference signal can refer to the corresponding parameters of the first reference signal when using the large-scale characteristic parameters.
  • QCL Quasi-Co-Location
  • APs Access Points
  • NR New Radio
  • UE user equipment
  • the QCL relationship between the first reference signal and the second reference signal specified in the related art cannot guarantee the correct demodulation of the second reference signal, and the related art does not specify the first reference signal and the second reference signal.
  • the embodiments of the present application propose a method, device, node, and storage medium for determining a QCL relationship, which aim to determine the relationship between the first reference signal and the second time window according to the QCL associated information, the first time window information, and the second time window information included in the acquired indication information. QCL relationship between the second reference signals.
  • An embodiment of the present application provides a method for determining a QCL relationship, which is applied to the first node, and the method includes:
  • the indication information includes QCL association information, first time window information and second time window information
  • the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • An embodiment of the present application provides a method for determining a QCL relationship, which is applied to a second node, and the method includes:
  • the indication information includes QCL association information, first time window information and second time window information
  • the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • An embodiment of the present application provides an apparatus for determining a QCL relationship, and the apparatus includes:
  • a determining module configured to determine the QCL relationship between the first reference signal and the second reference signal according to the indication information
  • the indication information includes QCL association information, first time window information and second time window information
  • the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • An embodiment of the present application provides an apparatus for determining a QCL relationship, and the apparatus includes:
  • Configuration module set as configuration instruction information
  • Sending module set to send instruction information
  • the indication information includes QCL association information, first time window information and second time window information
  • the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • An embodiment of the present application provides a communication node, and this stage includes a processor, and when the processor executes a computer program, the method for determining a QCL relationship provided by the embodiment of the present application is implemented.
  • the embodiments of the present application provide a readable and writable storage medium, which is set to be stored by a computer, and the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors, so as to realize the provision of the embodiments of the present application.
  • the QCL relationship determination method is a readable and writable storage medium, which is set to be stored by a computer, and the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors, so as to realize the provision of the embodiments of the present application.
  • Embodiments of the present application provide a method, device, node, and storage medium for determining a QCL relationship.
  • the method includes: acquiring indication information; determining a QCL relationship between a first reference signal and a second reference signal according to the indication information; wherein, indicating The information includes QCL association information, first time window information, and second time window information, and the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • the above process may implement determining the QCL relationship between the first reference signal and the second reference signal according to the QCL association information, the first time window information and the second time window information included in the acquired indication information.
  • FIG. 1 is a flowchart of a method for determining a QCL relationship provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of first time window information and second time window information provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another first time window information and second time window information provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of still another first time window information and second time window information provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the association between a second window length and different large-scale characteristic parameters according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram illustrating the association between another second window length and different large-scale characteristic parameters according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of still another second window length associated with different large-scale characteristic parameter groups according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of the association between a second window length and different QCL types provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another second window length associated with different QCL types according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of yet another second window length associated with different QCL types according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram illustrating the association between the first second window length and the signal period according to the embodiment of the present application.
  • FIG. 12 is a schematic diagram illustrating the association between a second window length and a signal period according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram illustrating the association between a third type of second window length and a signal period provided by an embodiment of the present application.
  • FIG. 14 is a schematic diagram illustrating the association between the fourth second window length and the signal period provided by the embodiment of the present application.
  • FIG. 15 is a flowchart of a method for determining a QCL relationship provided by an embodiment of the present application.
  • FIG. 16 is a schematic diagram of configuring a second time reference point according to an embodiment of the present application.
  • FIG. 17 is a schematic diagram of an apparatus for determining a QCL relationship provided by an embodiment of the present application.
  • FIG. 18 is a schematic diagram of an apparatus for determining a QCL relationship provided by an embodiment of the present application.
  • FIG. 19 is a schematic diagram of a network node provided by an embodiment of the present application.
  • DMRS Dedicated demodulation reference signal
  • CSI-RS channel state information reference signal
  • PTRS phase tracking reference signal
  • SSB synchronization/ Broadcast signal block
  • DMRS can be used to demodulate the physical layer downlink shared channel (Physical downlink shared channel, PDSCH) and physical layer downlink control information (Physical downlink control channel, PDCCH)
  • CSI-RS for tracking Can be used to detect and adjust time-frequency offset
  • CSI-RS for L1-RSRP computation for beam management
  • CSI-RS for mobility for mobility management
  • CSI-RS for CSI acquisition for channel state information (Channel state information, CSI) acquisition
  • PTRS is used to estimate phase noise
  • SSB is used for synchronization.
  • Different reference signals are sent out through different antenna ports, and although different reference signals may be sent out by different transmit antennas, they may have the same large-scale characteristics. For example, different antennas of a site may have the same or similar large-scale characteristic parameters, such as Doppler Shift, Doppler Spread, Average Delay, Delay Spread ( Delay Spread), Spatial Rx Parameter, etc.
  • Doppler Shift Doppler Shift
  • Doppler Spread Average Delay
  • Delay Spread Delay Spread
  • Spatial Rx Parameter etc.
  • the receiving antenna of the same UE when receiving reference signals from different transmitting antennas of the same AP, at least the same or similar average delay can be assumed. Based on this, the receiving side can further improve the channel estimation accuracy.
  • the two ports are called QCL, and QCL further correlates the reference signals sent by different antenna ports.
  • QCL Type Four different QCL types (QCL Type) are defined in the NR protocol, which are
  • QCL Type A ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇
  • Each QCL Type corresponds to different sets of large-scale characteristic parameters.
  • Each QCL Type indicates which large-scale characteristic parameters can be shared by different reference signals. For example, if DMRS of PDSCH and SSB are in a QCL type A relationship, it means that DMRS of PDSCH and SSB have the same Doppler shift, Doppler spread, average delay, delay spread, SSB's Doppler shift, Doppler spread, average delay, and delay spread can be used when demodulating DMRS.
  • Dense Multiple-Input Multiple-Output (Dense MIMO), Distributed Multiple-Input Multiple-Output (Distributed MIMO), Cell-Free Massive Multiple-Input Multiple-Output, Cell-Free Massive MIMO) as a potential key technical point of the multi-antenna direction of the Beyond Fifth Generation (B5G)/6th Generation mobile communication system (6th Generation, 6G), we get more and more attention.
  • B5G Fifth Generation
  • 6G 6th Generation
  • a notable feature of this technology is that the spatial distribution of access points (APs) in a given area is more scattered than the centralized APs used by current NR, and the number of APs is relatively large, and multiple APs serve multiple UEs at the same time.
  • APs access points
  • the serving AP set of a specific UE may change, the interference situation changes further, and the corresponding demodulation reference signal needs to be adjusted.
  • the base station instructs the first A reference signal and the second reference signal satisfy the QCL relationship, but this does not guarantee that the second reference signal can be correctly demodulated.
  • the sensitivity of different large-scale characteristic parameters to time changes is not considered to indicate the second reference signal. Referring to the time range of the large-scale characteristic parameters of the first reference signal, it also does not consider how to indicate the QCL relationship between the two reference signals when the first reference signal or the second reference signal is a periodic signal.
  • an embodiment of the present application provides a method for determining a QCL relationship, and the method can be applied to a first node (for example, a UE, a terminal device, etc.). As shown in FIG. 1 , the method can Including but not limited to the following steps:
  • the indication information may include QCL association information, first time window information and second time window information delivered by the base station side.
  • the QCL associated information may include the first reference signal having a QCL relationship with the second reference signal, and the QCL Type.
  • the QCL Type may include at least one of QCL type A, QCL type B, QCL type C, and QCL type D.
  • the first reference signal can be understood as a source signal
  • the second reference signal can be understood as a target signal, that is, the second reference signal can refer to the large-scale characteristic parameter measurement result of the first reference signal according to its QCL relationship with the first reference signal.
  • the first time window information is used to determine the first restriction that the first reference signal and the second reference signal have a QCL relationship
  • the second time window information is used to determine the second restriction that the second reference signal and the first reference signal have a QCL relationship condition.
  • the first node can determine the first reference signal and the second reference signal according to the content contained in the acquired indication information The QCL relationship between them.
  • first reference signal and the second reference signal have a QCL relationship
  • first reference signal and the second reference signal satisfy the above-mentioned first limitation condition and the second limitation condition at the same time.
  • An embodiment of the present application provides a method for determining a QCL relationship.
  • the method includes acquiring indication information; determining a QCL relationship between a first reference signal and a second reference signal according to the indication information; wherein the indication information includes QCL association information, first reference signal The time window information and the second time window information, the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • the above process may implement determining the QCL relationship between the first reference signal and the second reference signal according to the QCL association information, the first time window information and the second time window information included in the acquired indication information.
  • the above-mentioned first reference signal may include any one of SSB, CSI-RS, and DMRS
  • the second reference signal may include any one of DMRS, CSI-RS, and PTRS.
  • the above-mentioned first time window information includes a first time reference point and a first window length, and the first time window information is used to determine the first qualification condition that the first reference signal and the second reference signal have a QCL relationship;
  • the first time reference point includes the moment of receiving the signaling indicating that the first reference signal and the second reference signal have a QCL relationship, or the first time reference point includes the moment of determining the large-scale characteristic parameter of the second reference signal;
  • the second time window information includes a second time reference point and a second window length, and the second time window information is used to determine the second limiting condition that the second reference signal and the first reference signal have a QCL relationship;
  • the second time reference point includes the reception moment of the signaling indicating that the first reference signal has a QCL relationship with the second reference signal, or the second time reference point includes the start of the nth symbol or the nth time slot of the first reference signal or the end time; wherein, n is a positive integer that does not exceed the number of symbols or time slots occupied by the first reference signal.
  • the second time reference point in the above example may include specifying the start of the nth symbol or time slot in the kth cycle of the first reference signal or The end time; wherein, n is a positive integer that does not exceed the number of symbols or time slots occupied in one cycle of the first reference signal, and k is a positive integer.
  • the first time reference point and the second time reference point are both tn0
  • the first window length and the second window length are Tw1 and Tw2 respectively
  • the time range of the first reference signal is tr0 ⁇ tr1
  • the first time window The time range agreed by the information is tn0 ⁇ tn1
  • the time range agreed by the second time window information is tn0 ⁇ tn2
  • the first reference signals are all within the time range agreed by the first time window information and the second time window information
  • the second time window information may refer to the corresponding large-scale characteristic parameter of the first reference signal
  • the time range is tr0 to tr1.
  • the first time reference point and the second time reference point are both tn0
  • the first window length and the second window length are Tw1 and Tw3 respectively
  • the time range of the first reference signal is tr0 to tr1
  • the first time window The time range agreed by the information is tn0 ⁇ tn1
  • the time range agreed by the second time window information is tn0 ⁇ tn3
  • the first reference signals are all within the time range agreed by the first time window information, but only part of the information is in the second time window information
  • the time range of the large-scale characteristic parameter corresponding to the second reference signal with reference to the first reference signal is tr0 to tn3.
  • the first time reference point and the second time reference point are both tm0
  • the first window length and the second window length are Tw0 and Tw4 respectively
  • the time range of the first reference signal is tr0 to tr1
  • the first time window The time range specified by the information is tm0 to tm1
  • the time range specified by the second time window information is tm0 to tm2
  • only part of the first reference signal is within the time range specified by the first time window information and the second time window information
  • the unit of the above-mentioned second window length can be the number of symbols, the number of time slots, the number of subframes, the number of frames, seconds, milliseconds, microseconds, etc. There can be many different configurations for the second window length to achieve different scenarios. Differentiated configuration.
  • the second window length can be configured differently according to different large-scale characteristic parameters.
  • different second window lengths are configured for Doppler shift, Doppler spread, average delay, delay spread, and Spatial Rx parameter respectively, and the second window lengths of different large-scale characteristic parameters satisfy a certain quantitative relationship.
  • the base station indicates that the DMRS and aperiodic CSI-RS for tracking (AP-TRS) satisfy the QCL type A relationship, and are configured for four different second window lengths of Doppler shift, Doppler spread, average delay, and delay spread They are Tp1, Tp2, Tp3, Tp4, Tp1 ⁇ Tp2 ⁇ Tp3 ⁇ Tp4.
  • the first time reference point and the second time reference point are both tn0, the first window length is Tw1, the AP-TRS time range is tr0 to tr1, and the agreed time range of the first time window information is tn0 to tf1.
  • the agreed time ranges of the time window information are respectively tn0-tn1, tn0-tn2, tn0-tn3, and tn0-tn4.
  • DMRS needs to use parameters such as Doppler shift, Doppler spread, average delay, and delay spread, you can refer to the time ranges of AP-TRS: tr0 ⁇ tn1, tr0 ⁇ tn2, tr0 ⁇ tn3, tr0 ⁇ tn4.
  • the second window lengths of the above-mentioned different large-scale characteristic parameters are not necessarily in an increasing relationship according to the corresponding order of Doppler shift, Doppler spread, average delay, and delay spread, but may also be other relationships.
  • the base station may indicate that the DMRS and the AP-TRS satisfy the QCL type A relationship, and the four different second window lengths configured for Doppler shift, Doppler spread, average delay, and delay spread are Tp1, Tp2, Tp3, Tp4, and Tp4 respectively. ⁇ Tp2 ⁇ Tp3 ⁇ Tp1, as shown in Figure 6.
  • the second window length can also be configured differently according to different large-scale characteristic parameter groups. For example, grouping different large-scale characteristic parameters, the large-scale characteristic parameters in the same group have the same second window length, the large-scale characteristic parameters between different groups have different second window lengths, and the second window lengths of different groups long to satisfy a certain quantitative relationship.
  • the large-scale characteristic parameters can be divided into three groups according to ⁇ Doppler shift, Doppler spread ⁇ , ⁇ average delay, delay spread ⁇ , ⁇ Spatial Rx parameter ⁇ , and different second window lengths can be configured for multiple groups.
  • the number of groups and members of multiple groups involved in this grouping method are not unique, and are only for demonstration.
  • the base station indicates that the DMRS and aperiodic CSI-RS for tracking (AP-TRS) satisfy the QCL type A relationship, and the second window lengths configured by Doppler shift, Doppler spread, average delay, and delay spread are Tp1, Tp1 respectively , Tp2, Tp2, Tp1 ⁇ Tp2.
  • the first time reference point and the second time reference point are both tn0, the first window length is Tw1, the AP-TRS time range is tr0 to tr1, the first time window information contracted time range is tn0 to tf1, and the second time window information
  • the agreed time ranges are tn0 to tn1 and tn0 to tn2 respectively.
  • the second window length can also be configured differently according to different QCL types. For example, configure different second window lengths for QCL type A, QCL type B, QCL type C, and QCL type D respectively, and the second window lengths of different QCL types satisfy a certain quantitative relationship.
  • the different QCL types may be two different QCL types of the same first reference signal having a QCL relationship with the second reference signal, or may be two different first reference signals having a QCL relationship with the second reference signal.
  • the above-mentioned different QCL types are QCL types of two different first reference signals that have a QCL relationship with the second reference signal, or two different QCL types of the same first reference signal that have a QCL relationship with the second reference signal type, then regardless of whether the two QCL types are the same, they are considered different.
  • the base station instructs the DMRS and aperiodic CSI-RS for tracking (AP-TRS) to satisfy the relationship between QCL type A and QCL type D at the same time, and configures two different second window lengths Tp1 for QCL type A and QCL type D , Tp2, then the second window lengths of Doppler shift, Doppler spread, average delay, delay spread Spatial, and Rx parameter are Tp1, Tp1, Tp1, Tp1, Tp2, Tp1>Tp2, respectively.
  • APNRS aperiodic CSI-RS for tracking
  • the first time reference point and the second time reference point are both tn0, the first window length is Tw1, the AP-TRS time range is tr0 to tr1, and the agreed time range of the first time window information is tn0 to tf1.
  • the agreed time ranges of the time window information are tn0 to tm1 and tn0 to tm2 respectively.
  • the base station indicates that the DMRS and aperiodic CSI-RS for tracking (AP-TRS), aperiodic CSI-RS for L1-RSRP computation (AP-CSI-RS-BM) respectively satisfy the relationship of QCL type A and QCL type D , and configure two different second window lengths Tu1 and Tu2 for QCL type A and QCL type D, then the second window lengths of Doppler shift, Doppler spread, average delay, delay spread, and Spatial Rx parameter are Tu1, Tu1, Tu1 respectively , Tu1, Tu2, Tu1 ⁇ Tu2.
  • the first time reference point and the second time reference point are both tn0, the first window length is Tw1, the AP-TRS and AP-CSI-RS-BM time ranges are tr0 to tr1 and ta0 to ta1 respectively, and the first time window information
  • the contracted time range is tn0 to tf1, and the contracted time ranges of the two different second time window information are respectively tn0 to tk1 and tn0 to tk2.
  • the time range of the reference AP-TRS is tr0 ⁇ tk1
  • the time range of AP-CSI-RS-BM For ta0 ⁇ tk2.
  • the base station indicates that DMRS, aperiodic CSI-RS for L1-RSRP computation (AP-CSI-RS-BM) and aperiodic CSI-RS for tracking (AP-TRS) all satisfy the QCL type A relationship, and configure two Different second window lengths Tz1 and Tz2, in two different situations, the second window lengths of Doppler shift, Doppler spread, average delay, and delay spread are Tz1 or Tz2, where Tz1>Tz2.
  • the first time reference point and the second time reference point are both tn0
  • the first window length is Tw1
  • the AP-TRS time range is tr0 to tr1
  • the first time window information contracted time range is tn0 to tf1.
  • the two time window information agreed time ranges are respectively tn0-tk1 and tn0-tk2. Then, when DMRS needs to use Doppler shift, Doppler spread, average delay, delay spread and other parameters, the reference AP-TRS time range is tr0 ⁇ tk1, AP-CSI-RS-BM needs to use Doppler shift, Doppler spread, average delay, When parameters such as delay spread are used, the time range of the reference AP-TRS is tr0 to tk2.
  • the above-mentioned second window length may also be configured differently according to periodic characteristics of the first reference signal or the second reference signal.
  • the base station indicates that periodic CSI-RS for CSI acquisition (P-CSI-RS-CSI) and periodic CSI-RS for tracking (P-TRS) satisfy the QCL type A relationship, then the second window length can be related to P-CSI- The period of RS-CSI or the period of P-TRS is associated.
  • the base station configures that the first time reference point and the second time reference point are both tn0, the first window length is Tw0, and the time range specified by the first time window information is tn0-tf0.
  • the P-TRS periods of three different periods are 8*Tp_base, 2*Tp_base, and Tp_base respectively.
  • the P-TRS time domain range in the first period is tr0 ⁇ tr1, and the second window lengths are Tp1, Tp2, Tp3 respectively.
  • the time ranges specified by the second time window information are tn0-tn1, tn0-tn2, and tn0-tn3 respectively.
  • the P-CSR-RS-CSI period is 2*Td_base.
  • Tp_base and Td_base are the reference periods of P-TRS and P-CSR-RS-CSI respectively, and Tp1>Tp2>Tp3.
  • the time domain ranges of different periodic P-TRSs that can be referenced under different second time windows are different. It can be seen from the figure that when the P-TRS periods are 8*Tp_base, 2*Tp_base, and Tp_base respectively, the P-CSI-RS - CSI can be used to refer to the P-TRS of large-scale characteristic parameters within the time range specified by the corresponding second time window information. There are complete TRS information in one cycle, complete TRS information in two cycles, and complete TRS information in one cycle plus Partial TRS information in one cycle.
  • the base station configures the first time reference point and the second time reference point to be tn0, the first window length is Tw1, and the time range specified by the first time window information is tn0-tf0.
  • the P-TRS period is 2*Tp_base, and the P-TRS time domain in the first period ranges from tr0 to tr1.
  • the three P-CSR-RS-CSI periods with different periods are Td_base, 2*Td_base, and 4*Td_base, respectively
  • the second window lengths are Tp1, Tp2, and Tp3, respectively
  • the time ranges specified by the second time window information are tn0 ⁇ tn1, tn0 to tn2, and tn0 to tn3.
  • Tp_base and Td_base are the reference periods of P-TRS and P-CSR-RS-CSI respectively, and Tp1>Tp2>Tp3.
  • the time range of P-TRS that can be referred to is tr0 ⁇ tn1, tr0 ⁇ tn2, tr0 ⁇ tn3, the time domain range of the periodic P-TRS that can be referenced under different second time windows is different.
  • the P-CSI-RS-CSI period is Td_base respectively , 2*Td_base, 4*Td_base, P-CSI-RS-CSI can be used to refer to the P-TRS of large-scale characteristic parameters within the time range agreed by the corresponding second time window information.
  • the base station indicates that the semi-persistent CSI-RS for CSI acquisition (SP-CSI-RS-CSI) and the P-TRS satisfy the QCL type A relationship, and the second window length can be associated with the period of the P-TRS.
  • the base station configures that the first time reference point and the second time reference point are both tn0, the first window length is Tw0, and the time range specified by the first time window information is tn0-tf0.
  • the P-TRS periods of three different periods are 8*Tp_base, 2*Tp_base, and Tp_base respectively.
  • the P-TRS time domain range in the first period is tr0 ⁇ tr1, and the second window lengths are Tp1, Tp2, Tp3 respectively.
  • the time ranges specified by the second time window information are tn0-tn1, tn0-tn2, and tn0-tn3 respectively.
  • the SP-CSR-RS-CSI period is 2*Td_base.
  • Tp_base and Td_base are the reference periods of P-TRS and SP-CSR-RS-CSI, respectively, and Tp1>Tp2>Tp3.
  • the time domain ranges of different periodic P-TRSs that can be referenced under different second time windows are different. It can be seen from the figure that when the P-TRS periods are 8*Tp_base, 2*Tp_base, and Tp_base respectively, the SP-CSI-RS - CSI can be used to refer to the P-TRS of large-scale characteristic parameters within the time range specified by the corresponding second time window information. There are complete TRS information in one cycle, complete TRS information in two cycles, and complete TRS information in one cycle plus Partial TRS information in one cycle.
  • the base station indicates that the aperidoic CSI-RS for CSI acquisition (AP-CSI-RS-CSI) and the P-TRS satisfy the QCL type A relationship, and the second window length can be associated with the period of the P-TRS.
  • the base station configures that the first time reference point and the second time reference point are both tn0, the first window length is Tw0, and the time range specified by the first time window information is tn0-tf0.
  • the P-TRS periods of three different periods are 8*Tp_base, 2*Tp_base, and Tp_base, respectively.
  • the P-TRS time domain range in the first period is tr0 ⁇ tr1, and the second window lengths are Tp1, Tp2, and Tp3 respectively.
  • the time ranges specified by the second time window information are respectively tn0-tn1, tn0-tn2, and tn0-tn3.
  • Tp_base is the reference period of P-TRS, Tp1>Tp2>Tp3.
  • the AP-CSI-RS - CSI can be used to refer to the P-TRS of large-scale characteristic parameters within the time range specified by the corresponding second time window information.
  • the second window length may be associated with at least one of the large-scale characteristic parameters, the large-scale characteristic parameter group, the QCL type, and the period of the reference signal, wherein the reference signal may be the first reference signal, or the reference The signal is the second reference signal.
  • the second window length may be associated with the period of the first reference signal, or may be associated with the period of the second reference signal; in the case of the first reference signal
  • the second window length may be associated with the period of the first reference signal.
  • the relationship between the second window length and the above-mentioned factors such as the large-scale characteristic parameter, large-scale characteristic parameter group, QCL type, and period of the reference signal may satisfy a certain functional relationship, and the functional relationship may include a positive Correlation can also be anti-correlation.
  • Fig. 15 is a flow chart of a method for determining a QCL relationship provided in an embodiment of the present application.
  • the method can be applied to a second node (for example, a base station).
  • the method can include but is not limited to the following steps:
  • the indication information in this step may include QCL association information, first time window information and second time window information.
  • the QCL associated information includes a first reference signal having a QCL relationship with the second reference signal, and a QCL type.
  • the first time window information includes a first time reference point and a first window length
  • the second time window information includes a second time reference point and a second window length.
  • the second node may configure the indication information (or the second window length in the indication information) by means of static configuration, or, after configuring a set of parameter sets, the base station may indicate the second window by means of dynamic signaling or the base station may determine the second window length jointly with the first node after configuring a set of parameter sets.
  • the indication information may be sent to the first node, so that the first node can determine the first reference signal and the first reference signal according to the QCL association information, the first time window information and the second time window information included in the indication information.
  • the QCL relationship between the two reference signals is the QCL relationship between the two reference signals.
  • An embodiment of the present application provides a method for determining a QCL relationship, and the method may include configuring indication information and sending the indication information.
  • the indication information includes QCL association information, first time window information, and second time window information
  • the QCL association information includes a first reference signal having a QCL relationship with the second reference signal, and a QCL type.
  • the above-mentioned QCL type includes at least one of QCL type A, QCL type B, QCL type C, and QCL type D.
  • the above-mentioned first reference signal may include any one of SSB, CSI-RS, and DMRS
  • the second reference signal may include any one of DMRS, CSI-RS, and PTRS.
  • the first reference signal may be understood as a source signal
  • the second reference signal may be understood as a target signal, that is, the second reference signal may determine the large-scale characteristic parameters of the second reference signal through the measurement results of the large-scale characteristic parameters of the first reference signal .
  • the above-mentioned first time window information is used to determine the first qualification condition that the first reference signal and the second reference signal have a QCL relationship
  • the second time window information is used to determine the second reference signal and the first reference signal have a QCL relationship.
  • first reference signal and the second reference signal have a QCL relationship
  • first reference signal and the second reference signal satisfy the first and second constraints at the same time.
  • the first time reference point in the first time window information may include the reception moment of the signaling indicating that the first reference signal and the second reference signal have a QCL relationship, or the first time reference point includes determining the first reference signal and the second reference signal. 2. The moment of the large-scale characteristic parameter of the reference signal.
  • the second time reference point in the second time window information may include the reception moment of the signaling indicating that the first reference signal and the second reference signal have a QCL relationship, or the second time reference point may include the nth symbol of the first reference signal or the start or end time of the nth time slot;
  • n is a positive integer that does not exceed the number of symbols or time slots occupied by the first reference signal.
  • the unit of the above-mentioned second window length can be the number of symbols, the number of time slots, the number of subframes, the number of frames, seconds, milliseconds, microseconds, etc., and there can be many different configurations for the second window length to achieve. Differentiated configuration in different scenarios.
  • the second window length can be configured differently according to different large-scale characteristic parameters.
  • different second window lengths are configured for Doppler shift, Doppler spread, average delay, delay spread, and Spatial Rx parameter respectively, and the second window lengths of different large-scale characteristic parameters satisfy a certain quantitative relationship.
  • the second window length can also be configured differently according to different large-scale characteristic parameter groups. For example, grouping different large-scale characteristic parameters, the large-scale characteristic parameters in the same group have the same second window length, the large-scale characteristic parameters between different groups have different second window lengths, and the second window lengths of different groups long to satisfy a certain quantitative relationship.
  • the large-scale characteristic parameters can be divided into three groups according to ⁇ Doppler shift, Doppler spread ⁇ , ⁇ average delay, delay spread ⁇ , ⁇ Spatial Rx parameter ⁇ , and different second window lengths can be configured for multiple groups.
  • the second window length can also be configured differently according to different QCL types. For example, configure different second window lengths for QCL type A, QCL type B, QCL type C, and QCL type D respectively, and the second window lengths of different QCL types satisfy a certain quantitative relationship.
  • the different QCL types may be two different QCL types of the same first reference signal having a QCL relationship with the second reference signal, or may be two different first reference signals having a QCL relationship with the second reference signal.
  • the above-mentioned different QCL types are QCL types of two different first reference signals that have a QCL relationship with the second reference signal, or two different QCL types of the same first reference signal that have a QCL relationship with the second reference signal type, then regardless of whether the two QCL types are the same, they are considered different.
  • the above-mentioned second window length may also be configured differently according to periodic characteristics of the first reference signal or the second reference signal.
  • the base station indicates that periodic CSI-RS for CSI acquisition (P-CSI-RS-CSI) and periodic CSI-RS for tracking (P-TRS) satisfy the QCL type A relationship, then the second window length can be related to P-CSI- The period of RS-CSI or the period of P-TRS is associated.
  • the second window length may be associated with the period of the first reference signal, or may be associated with the period of the second reference signal; in the first reference signal When the signal is a periodic signal, and the second reference signal is an aperiodic signal or a semi-persistent signal, the second window length may be associated with the period of the first reference signal.
  • the second window length may be associated with at least one of the large-scale characteristic parameters, the large-scale characteristic parameter group, the QCL type, and the period of the reference signal.
  • the correlation may include that the second window length satisfies a functional relationship with at least one of the large-scale characteristic parameters, the large-scale characteristic parameter group, the QCL type, and the period of the reference signal.
  • it may be a positive correlation or a negative correlation related.
  • the reference signal may be the first reference signal, or the reference signal may be the second reference signal.
  • the second time reference point includes the start or end time of specifying the nth symbol or time slot in the kth cycle of the first reference signal; A positive integer of the number of symbols or time slots occupied by the reference signal in one cycle, and k is a positive integer.
  • the base station can indicate the second time reference point in the following different scenarios.
  • the DMRS and AP-TRS satisfy the Type A relationship and the second time reference point is the same as the first time reference point.
  • the reference points are the same, or the DMRS and AP-TRS satisfy the Type A relationship and the second time reference point is the start time of the first symbol of the AP-TRS, or the DMRS and the P-TRS satisfy the Type A relationship and the second time reference point is the P-TRS
  • the end time of the last symbol in the first cycle, or the DMRS and P-TRS satisfy the Type A relationship and the second time reference point is the start time of the first symbol in the second cycle of the P-TRS.
  • the first time reference points are tn0
  • the first window length is Tw0
  • the second window length is Tp0
  • the second time reference points are tm0, tm1, tm2, and tm3, respectively
  • the first time window is The time range of the information contract is tn0 to tf0
  • the time range of the second time window information contract is tn0 to tm0, tn1 to tm1, tn2 to tm2, and tn3 to tm3, respectively.
  • the time range of the corresponding second reference signal can be referred to as tn0 ⁇ tm0, tn1 ⁇ tm1, tn2 ⁇ tm2, tn3 ⁇ tm3.
  • the period of the reference signal is the period of the first reference signal; when the second reference signal is a periodic signal, the period of the reference signal is the period of the second reference signal cycle.
  • FIG. 17 is an apparatus for determining a QCL relationship provided by an embodiment of the present application. As shown in FIG. 17 , the apparatus may include: an acquisition module 1701 and a determination module 1702;
  • the obtaining module is set to obtain instruction information
  • a determining module configured to determine the QCL relationship between the first reference signal and the second reference signal according to the indication information
  • the indication information includes QCL association information, first time window information and second time window information
  • the QCL association information includes a first reference signal having a QCL relationship with the second reference signal, and a QCL type, for example, at least one of QCL type A, QCL type B, QCL type C, and QCL type D.
  • the first reference signal may include any one of SSB, CSI-RS, and DMRS
  • the second reference signal may include any one of DMRS, CSI-RS, and PTRS.
  • the second reference signal may determine the large-scale characteristic parameter of the second reference signal through the measurement result of the large-scale characteristic parameter of the first reference signal.
  • the above-mentioned first time window information includes a first time reference point and a first window length, wherein the first time window information is used to determine a first definition that the first reference signal and the second reference signal have a QCL relationship Condition: the first time reference point includes the moment of receiving the signaling indicating that the first reference signal and the second reference signal have a QCL relationship, or the first time reference point includes the moment of determining the large-scale characteristic parameter of the second reference signal.
  • the second time window information includes a second time reference point and a second window length, and the second time window information is used to determine the second qualification condition that the second reference signal and the first reference signal have a QCL relationship;
  • the second time reference point includes an indication The reception moment of the signaling in which the first reference signal and the second reference signal have a QCL relationship, or the second time reference point includes the start or end moment of the nth symbol or the nth time slot of the first reference signal;
  • n is a positive integer that does not exceed the number of symbols or time slots occupied by the first reference signal.
  • the second time reference point includes the designated start or end time of the nth symbol or time slot in the kth cycle of the first reference signal; A positive integer of the number of symbols or time slots occupied by the reference signal in one cycle, and k is a positive integer.
  • first reference signal and the second reference signal having a QCL relationship can be understood as the first reference signal and the second reference signal satisfying the first restriction condition and the second restriction condition at the same time.
  • the second window length can be associated with at least one of the large-scale characteristic parameter, the large-scale characteristic parameter group, the QCL type, and the period of the reference signal, and the association can be understood as the second window length can be the large-scale characteristic parameter, the large-scale characteristic parameter group. At least one of , QCL type, and the period of the reference signal satisfies the functional relationship.
  • the above reference signal may be the first reference signal, or the reference signal may be the second reference signal.
  • the second window length may be associated with the period of the first reference signal, or may be associated with the period of the second reference signal; in the first reference signal
  • the second window length may be associated with the period of the first reference signal. That is, when the first reference signal is a periodic signal, the period of the above-mentioned reference signal is the period of the first reference signal.
  • the second reference signal is a periodic signal
  • the period of the reference signal is the period of the second reference signal.
  • the device for determining a QCL relationship provided in this embodiment is configured to implement the method for determining a QCL relationship in the embodiment shown in FIG. 1 , and the implementation principle and technical effect thereof are similar, and details are not described herein again.
  • FIG. 18 is an apparatus for determining a QCL relationship provided by an embodiment of the present application. As shown in FIG. 18 , the apparatus may include: a configuration module 1801 and a sending module 1802;
  • the configuration module is set as the configuration instruction information
  • Sending module set to send instruction information
  • the indication information includes QCL association information, first time window information and second time window information
  • the QCL association information includes the first reference signal having a QCL relationship with the second reference signal, and the QCL type.
  • the QCL type may include at least one of QCL type A, QCL type B, QCL type C, and QCL type D.
  • the first reference signal may include any one of SSB, CSI-RS, and DMRS
  • the second reference signal may include any one of DMRS, CSI-RS, and PTRS.
  • the large-scale characteristic parameter of the second reference signal may be determined by the measurement result of the large-scale characteristic parameter of the first reference signal for the second reference signal.
  • the first time window information includes a first time reference point and a first window length.
  • the first time window information is used to determine the first qualification condition that the first reference signal and the second reference signal have a QCL relationship; the first time reference point includes signaling indicating that the first reference signal and the second reference signal have a QCL relationship or, the first time reference point includes the moment at which the large-scale characteristic parameter of the second reference signal is determined.
  • the second time window information includes a second time reference point and a second window length.
  • the second time window information is used to determine the second qualification condition that the second reference signal and the first reference signal have a QCL relationship;
  • the second time reference point includes signaling indicating that the first reference signal and the second reference signal have a QCL relationship , or, the second time reference point includes the start or end moment of the nth symbol or the nth time slot of the first reference signal;
  • n is a positive integer that does not exceed the number of symbols or time slots occupied by the first reference signal.
  • the second time reference point includes the start or end time of specifying the nth symbol or time slot in the kth cycle of the first reference signal;
  • the above-mentioned first reference signal and the second reference signal having a QCL relationship include: the first reference signal and the second reference signal satisfy the first restriction condition and the second restriction condition at the same time.
  • the second window length is associated with at least one of a large-scale characteristic parameter, a large-scale characteristic parameter group, a QCL type, and a period of a reference signal, and the association may include the second window length and the large-scale characteristic parameter, At least one of the large-scale characteristic parameter group, the QCL type, and the period of the reference signal satisfies the functional relationship.
  • the above reference signal may be the first reference signal, or the reference signal may be the second reference signal.
  • the second window length may be associated with the period of the first reference signal, or may be associated with the period of the second reference signal; when the first reference signal is For periodic signals, when the second reference signal is an aperiodic signal or a semi-persistent signal, the second window length may be associated with the period of the first reference signal.
  • the period of the above-mentioned reference signal is the period of the first reference signal.
  • the period of the reference signal is the period of the second reference signal.
  • the device for determining a QCL relationship provided in this embodiment is set to implement the method for determining a QCL relationship in the embodiment shown in FIG. 15 , and the implementation principle and technical effect thereof are similar, and details are not described herein again.
  • FIG. 19 is a schematic structural diagram of a network node provided by an embodiment.
  • the node includes a processor 1901 and a memory 1902; the number of processors 1901 in the node may be one or more.
  • a processor 1901 is taken as an example; the processor 1901 and the memory 1902 in the node may be connected by a bus or in other ways. In FIG. 19 , the connection by a bus is taken as an example.
  • the memory 1902 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the QCL relationship determination method in the embodiment of FIG. 1 or FIG. 15 of the present application (for example, The acquisition module 1701 and the determination module 1702 in the QCL relationship determination apparatus, or the configuration module 701 and the transmission module 702, the configuration module 1801 and the transmission module 1802).
  • the processor 1901 implements the above-mentioned QCL relationship determination method by running the software programs, instructions and modules stored in the memory 1902 .
  • the memory 1902 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the set-top box, and the like. Additionally, memory 1902 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor in the above-mentioned node may also implement the above-mentioned method for determining the QCL relationship through hardware circuits such as logic circuits and gate circuits in the above-mentioned nodes.
  • the embodiments of the present application also provide a readable and writable storage medium, which is set to be stored by a computer, and the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to perform the above implementation.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively.
  • Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • Computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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Abstract

本申请公开一种QCL关系确定方法、装置、节点和存储介质，该方法包括：获取指示信息；根据指示信息确定第一参考信号与第二参考信号之间的QCL关系；其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息，QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。上述过程可以实现根据获取的指示信息中包括的QCL关联信息、第一时间窗信息和第二时间窗信息确定第一参考信号与第二参考信号之间的QCL关系。

Description

QCL关系确定方法、装置、节点和存储介质 技术领域
本申请涉及无线通信技术领域，例如涉及一种QCL关系确定方法、装置、节点和存储介质。
背景技术
当两个不同天线端口发送的参考信号具有相同的大尺度特性(large scale property)参数时，则称这两个天线端口为准共址(Quasi-Co-Location，QCL)，如第一参考信号与第二参考信号满足QCL，则第二参考信号在使用大尺度特性参数可以参照第一参考信号的相应参数。
在未来密集网络或大规模分布式或无蜂窝网络中，在给定区域内接入点(Access Point，AP)的空间分布相较于新空口(New Radio，NR)使用的集中式AP更分散，且AP数目比较多，多个AP同时为多个用户设备(User Equipment，UE)服务，因此当区域内有UE发生移动或者有AP/UE加入/退出协作传输时，特定UE的服务AP集合就可能发生变化，使得干扰情况进一步发生变化，相应的解调参考信号也需要做出调整。这种情况下，相关技术中规定的第一参考信号与第二参考信号之间的QCL关系不能保证第二参考信号能正确解调，并且相关技术中也没有明确第一参考信号与第二参考信号可能具有的QCL关系的时间范围，以及第二参考信号利用第一参考信号的大尺度特性参数的时间范围。
发明内容
本申请实施例提出一种QCL关系确定方法、装置、节点和存储介质，旨在根据获取的指示信息中包括的QCL关联信息、第一时间窗信息和第二时间窗信息确定第一参考信号与第二参考信号之间的QCL关系。
本申请实施例提供了一种QCL关系确定方法，应用于第一节点，该方法包括：
获取指示信息；
根据指示信息确定第一参考信号与第二参考信号之间的QCL关系；
其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息；
QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。
本申请实施例提供了一种QCL关系确定方法，应用于第二节点，该方法包括：
配置指示信息；
发送指示信息；
其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息；
QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。
本申请实施例提供了一种QCL关系确定装置，该装置包括：
获取模块，设置为获取指示信息；
确定模块，设置为根据指示信息确定第一参考信号与第二参考信号之间的QCL关系；
其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息；
QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。
本申请实施例提供了一种QCL关系确定装置，该装置包括：
配置模块，设置为配置指示信息；
发送模块，设置为发送指示信息；
其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息；
QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。
本申请实施例提供了一种通信节点，该阶段包括处理器，处理器执行计算机程序时，实现如本申请实施例所提供的QCL关系确定方法。
本申请实施例提供了可读写存储介质，设置为计算机存储，存储介质存储有一个或者多个程序，该一个或者多个程序可被一个或者多个处理器执行，以实现本申请实施例提供的QCL关系确定方法。
本申请实施例提供了一种QCL关系确定方法、装置、节点和存储介质，该方法包括：获取指示信息；根据指示信息确定第一参考信号与第二参考信号之间的QCL关系；其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息，QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。上述过程可以实现根据获取的指示信息中包括的QCL关联信息、第一时间窗信息和第二时间窗信息确定第一参考信号与第二参考信号之间的QCL关系。
附图说明
图1是本申请实施例提供的一种QCL关系确定方法的流程图。
图2是本申请实施例提供的一种第一时间窗信息和第二时间窗信息的示意图。
图3是本申请实施例提供的另一种第一时间窗信息和第二时间窗信息的示意图。
图4是本申请实施例提供的再一种第一时间窗信息和第二时间窗信息的示意图。
图5是本申请实施例提供的一种第二窗长与不同大尺度特性参数关联的示意图。
图6是本申请实施例提供的另一种第二窗长与不同大尺度特性参数关联的示意图。
图7是本申请实施例提供的再一种第二窗长与不同大尺度特性参数组关联的示意图。
图8是本申请实施例提供的一种第二窗长与不同QCL type关联的示意图。
图9是本申请实施例提供的另一种第二窗长与不同QCL type关联的示意图。
图10是本申请实施例提供的再一种第二窗长与不同QCL type关联的示意图。
图11是本申请实施例提供的第一种第二窗长与信号周期关联的示意图。
图12是本申请实施例提供的第二种第二窗长与信号周期关联的示意图。
图13是本申请实施例提供的第三种第二窗长与信号周期关联的示意图。
图14是本申请实施例提供的第四种第二窗长与信号周期关联的示意图。
图15是本申请实施例提供的一种QCL关系确定方法的流程图。
图16是本申请实施例提供的配置第二时间参考点的示意图。
图17是本申请实施例提供的QCL关系确定装置的示意图。
图18是本申请实施例提供的QCL关系确定装置的示意图。
图19是本申请实施例提供的网络节点的示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
为了便于更加清楚地理解本申请实施例提供的方案，这里对本申请实施例中所涉及到的相关概念进行解释，具体如下：
NR中定义了专属解调参考信号(Dedicated demodulation reference signal，DMRS)、信道状态信息参考信号(Channel state information reference signal，CSI-RS)、相位追踪参考信号(Phase tracking reference signal，PTRS)、同步/广播信号块(Synchronization signal/Physical Broadcast channel block，SSB)。这些不同的参考信号具有不同的用途，比如，DMRS可用于解调物理层下行共享信道(Physical downlink shared channel，PDSCH)和物理层下行控制信息(Physical downlink control channel，PDCCH)，CSI-RS for tracking可用于检测和调整时频偏，CSI-RS for L1-RSRP computation用于波束管理，CSI-RS for mobility用于移动管理，CSI-RS for CSI acquisition用于信道状态信息(Channel state information，CSI)获取，PTRS用于估计相位噪声，SSB用于同步。不同的参考信号通过不同的天线端口发出，尽管不同的参考信号可能由不同的发射天线发出，但是它们可能具有相同的大尺度特性。例如，一个站点的不同天线，可能具有相同或相似的大尺度特性参数，如多普勒平移(Doppler Shift)、多普勒扩展(Doppler Spread)、平均时延(Average Delay)、时延扩展(Delay Spread)、空间接收参数(Spatial Rx Parameter)等。对于同一UE的接收天线，接收来自同一AP的不同发射天线的参考信号，至少可以假定相同或相似的平均时延，基于此接收侧可以进一步提高信道估计精度。当两个不同的天线端口具有相同的大尺度特性参数，则称这两个端口是QCL，QCL将不同天线端口发送的参考信号进一步关联。
NR协议中定义了四种不同QCL类型(QCL Type)，分别是
QCL Type A:{Doppler shift，Doppler spread，average delay，delay spread}
QCL Type B:{Doppler shift，Doppler spread}
QCL Type C:{Doppler shift，average delay}
QCL Type D:{Spatial Rx parameter}
不同QCL Type对应不同的大尺度特性参数集合，每种QCL Type表示不同参考信号可以共用哪些大尺度特性参数，如DMRS of PDSCH与SSB是QCL type A关系，则表示DMRS of PDSCH与SSB有相同的Doppler shift，Doppler spread，average delay，delay spread，在解调DMRS时可以使用SSB的Doppler shift，Doppler spread，average delay，delay spread。
密集多输入多输出(Dense Multiple-Input Multiple-Output，Dense MIMO)、分布式多输入多输出(Distributed Multiple-Input Multiple-Output，Distributed MIMO)、无蜂窝大规模多输入多输出(Cell-Free Massive Multiple-Input Multiple-Output，Cell-Free Massive MIMO)作为超5代移动通信系统(Beyond Fifth Generation，B5G)/第6代移动通信系统(6th Generation，6G)多天线方向潜在的关键技术点，得到越来越多关注。该技术一个显著特征在给定区域内接入点(的空间分布相较于当前NR使用的集中式AP更分散，且AP数目比较多，多个AP同时 为多个UE服务，因此当区域内有UE发生移动，或者有AP/UE加入/退出协作传输，那么特定UE的服务AP集合就可能发生变化，干扰情况进一步发生变化，相应的解调参考信号需要做出调整。例如，基站指示第一参考信号与第二参考信号满足QCL关系，但这并不能保证第二参考信号可以正确解调。相关技术中没有考虑不同大尺度特性参对时间变化的敏感度不同，来指示第二参考信号参照第一参考信号的大尺度特性参数的时间范围。也没有考虑当第一参考信号或第二参考信号为周期性信号时，该如何指示两个参考信号之间的QCL关系。
基于上述概念和已有的技术缺陷，本申请实施例提供了一种QCL关系确定方法，该方法可以应用于第一节点(例如，UE、终端设备等)，如图1所示，该方法可以包括但不限于以下步骤：
S101、获取指示信息。
示例性地，该指示信息可以包括由基站侧下发的QCL关联信息、第一时间窗信息和第二时间窗信息。其中，QCL关联信息可以包括与第二参考信号具有QCL关系的第一参考信号，以及QCL Type。
可以理解的是，该QCL Type可以包括QCL type A、QCL type B、QCL type C、QCL type D中的至少一个。
第一参考信号可以理解为源信号，第二参考信号可以理解为目标信号，即第二参考信号可以依据其与第一参考信号的QCL关系，参照第一参考信号的大尺度特性参数测量结果。
第一时间窗信息用于确定第一参考信号与第二参考信号具有QCL关系的第一限定条件，第二时间窗信息用于确定第二参考信号与第一参考信号具有QCL关系的第二限定条件。
S102、根据指示信息确定第一参考信号与第二参考信号之间的QCL关系。
由于基站下发的指示信息中包含有QCL关联信息、第一时间窗信息和第二时间窗信息，那么第一节点可以根据获取的指示信息中包含的内容确定第一参考信号与第二参考信号之间的QCL关系。
其中，第一参考信号与第二参考信号具有QCL关系可以理解为第一参考信号与第二参考信号同时满足上述第一限定条件和第二限定条件。
本申请实施例提供了一种QCL关系确定方法，该方法包括获取指示信息；根据指示信息确定第一参考信号与第二参考信号之间的QCL关系；其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息，QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。上述过程可以实现根据获取的指示信息中包括的QCL关联信息、第一时间窗信息和第二时间窗信息确定第一参考信号与第二参考信号之间的QCL关系。
例如，上述第一参考信号可以包括SSB、CSI-RS、DMRS中的任意一个，第二参考信号可以包括DMRS、CSI-RS、PTRS中的任意一个。
在一种示例中，上述第一时间窗信息包括第一时间参考点和第一窗长，第一时间窗信息用于确定第一参考信号与第二参考信号具有QCL关系的第一限定条件；
第一时间参考点包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第一时间参考点包括确定第二参考信号大尺度特性参数的时刻；
第二时间窗信息包括第二时间参考点和第二窗长，第二时间窗信息用于确定第二参考信号与第一参考信号具有QCL关系的第二限定条件；
第二时间参考点包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第二时间参考点包括第一参考信号第n个符号或第n个时隙的开始或结束时刻；其中，n为不超过第一参考信号所占用的符号数或时隙数的正整数。
在一种示例中，在第一参考信号包括周期性信号的情况下，上述示例中的第二时间参考点可以包括指定第一参考信号第k个周期内第n个符号或时隙的开始或结束时刻；其中，n为不超过所述第一参考信号一个周期内所占用的符号数或时隙数的正整数，k为正整数。
如图2所示，第一时间参考点和第二时间参考点均为tn0，第一窗长和第二窗长分别Tw1和Tw2，第一参考信号时间范围为tr0～tr1，第一时间窗信息约定的时间范围为tn0～tn1，第二时间窗信息约定的时间范围为tn0～tn2，第一参考信号均在第一时间窗信息和第二时间窗信息约定的时间范围内，那么第二参考信号可以参照第一参考信号相应的大尺度特性参数时间范围为tr0～tr1。
如图3所示，第一时间参考点和第二时间参考点均为tn0，第一窗长和第二窗长分别Tw1和Tw3，第一参考信号时间范围为tr0～tr1，第一时间窗信息约定的时间范围为tn0～tn1，第二时间窗信息约定的时间范围为tn0～tn3，第一参考信号均在第一时间窗信息约定的时间范围内，但只有部分在第二时间窗信息约定的时间范围内，那么第二参考信号参照第一参考信号相应的大尺度特性参数时间范围为tr0～tn3。
如图4所示，第一时间参考点和第二时间参考点均为tm0，第一窗长和第二窗长分别Tw0和Tw4，第一参考信号时间范围为tr0～tr1，第一时间窗信息约定的时间范围为tm0～tm1，第二时间窗信息约定的时间范围为tm0～tm2，第一参考信号只有部分信号在第一时间窗信息和第二时间窗信息约定的时间范围内，那么第二参考信号参照第一参考信号相应的大尺度特性参数时间范围为tr0～tm2。
上述第二窗长的单位可以是符号数、时隙数、子帧数、帧数、秒、毫秒、微秒等，对于第二窗长可以有多种不同的配置，以实现不同场景下的差异化配置。
例如，第二窗长可以根据不同大尺度特性参数差异化配置。比如，分别为Doppler shift、Doppler spread、average delay、delay spread、Spatial Rx parameter配置不同的第二窗长，且不同大尺度特性参数的第二窗长之间满足一定的数量关系。
如图5所示，基站指示DMRS与aperiodic CSI-RS for tracking(AP-TRS)满足QCL type A关系，且为Doppler shift、Doppler spread、average delay、delay spread配置的四个不同的第二窗长分别为Tp1，Tp2，Tp3，Tp4，Tp1<Tp2<Tp3<Tp4。第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw1，AP-TRS时间范围为tr0～tr1，第一时间窗信息约定时间范围为tn0～tf1，四种不同第二时间窗信息约定时间范围分别是tn0～tn1、tn0～tn2、tn0～tn3、tn0～tn4。则DMRS需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考AP-TRS的时间范围分别是tr0～tn1、tr0～tn2、tr0～tn3、tr0～tn4。
当然，上述不同大尺度特性参数的第二窗长并非一定按照Doppler shift、Doppler spread、average delay、delay spread对应的顺序呈递增关系，还可以是其他关系。例如，基站可以指示DMRS与AP-TRS满足QCL type A关系且分别为Doppler shift、Doppler spread、average delay、delay spread配置的四个不同的第二窗长分别为Tp1，Tp2，Tp3，Tp4，Tp4<Tp2<Tp3<Tp1，如图6所示。
例如，第二窗长也可以根据不同大尺度特性参数组进行差异化配置。例如，将不同大尺度特性参数分组，同一组内的大尺度特性参数有相同的第二窗长，不同组之间的大尺度特性参数有不同的第二窗长，且不同组的第二窗长满足一定的数量关系。比如，可以按照{Doppler shift，Doppler spread}、{average delay，delay spread}、{Spatial Rx parameter}将大尺度特性参数分为三组，并为多组配置不同的第二窗长。当然，这一分组方式所涉及的分组个数及多组成员并不唯一，仅做示范。
如图7所示，基站指示DMRS与aperiodic CSI-RS for tracking(AP-TRS)满足QCL type A关系，且Doppler shift、Doppler spread、average delay、delay spread配置的第二窗长分别为Tp1，Tp1，Tp2，Tp2，Tp1<Tp2。第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw1，AP-TRS时间范围为tr0～tr1，第一时间窗信息约定时间范围为tn0～tf1，第二时间窗信息约定时间范围分别是tn0～tn1、tn0～tn2。那么DMRS需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考TRS的时间范围分别是tr0～tn1、tr0～tn1、tr0～tn2、tr0～tn2。
例如，第二窗长也可以根据不同QCL type差异化配置。例如，分别为QCL type A、QCL type B、QCL type C、QCL type D配置不同的第二窗长，不同QCL type的第二窗长满足一定的数量关系。
其中，不同的QCL type可以是与第二参考信号有QCL关系的同一个第一参考信号的两种不同的QCL type，也可以是与第二参考信号有QCL关系的两个不同的第一参考信号的QCL type，或者是与两个不同的第二参考信号有QCL关系的同一个第一参考信号的QCL type。
若上述不同的QCL type是与第二参考信号有QCL关系的两个不同的第一参考信号的QCL type，或者与第二参考信号有QCL关系的同一个第一参考信号的两个不同的QCL type，那么无论两个QCL type是否相同，都认为不同。
如图8所示，基站指示DMRS与aperiodic CSI-RS for tracking(AP-TRS)同时满足QCL type A和QCL type D关系，且为QCL type A和QCL type D配置两个不同第二窗长Tp1、Tp2，则Doppler shift、Doppler spread、average delay、delay spread Spatial、Rx parameter的第二窗长分别为Tp1，Tp1，Tp1，Tp1，Tp2，Tp1>Tp2。第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw1，AP-TRS时间范围为tr0～tr1，第一时间窗信息约定时间范围为tn0～tf1，两种不同第二时间窗信息约定时间范围分别是tn0～tm1、tn0～tm2。则DMRS需要使用Doppler shift、Doppler spread、average delay、delay spread、Spatial Rx parameter等参数时，可以参考AP-TRS的时间范围分别是tr0～tm1、tr0～tm1、tr0～tm1、tr0～tm1、tr0～tm2。
如图9所示，基站指示DMRS分别与aperiodic CSI-RS for tracking(AP-TRS)、aperiodic CSI-RS for L1-RSRP computation(AP-CSI-RS-BM)满足QCL type A和QCL type D关系，且为QCL type A和QCL type D配置两个不同第二窗长Tu1、Tu2，则Doppler shift、Doppler spread、average delay、delay spread、Spatial Rx parameter的第二窗长分别为Tu1，Tu1，Tu1，Tu1，Tu2，Tu1<Tu2。第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw1，AP-TRS与AP-CSI-RS-BM时间范围分别为tr0～tr1、ta0～ta1，第一时间窗信息约定时间范围为tn0～tf1，两种不同第二时间窗信息约定时间范围分别是tn0～tk1、tn0～tk2。那么DMRS需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，参考AP-TRS的时间范围都为 tr0～tk1，使用Spatial Rx parameter参数时可以参考AP-CSI-RS-BM的时间范围为ta0～tk2。
如图10所示，基站指示DMRS、aperiodic CSI-RS for L1-RSRP computation(AP-CSI-RS-BM)与aperiodic CSI-RS for tracking(AP-TRS)均满足QCL type A关系，配置两个不同第二窗长Tz1、Tz2，则在两种不同情形下，Doppler shift、Doppler spread、average delay、delay spread的第二窗长均为Tz1或Tz2，其中，Tz1>Tz2。设第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw1，AP-TRS时间范围为tr0～tr1，第一时间窗信息约定时间范围为tn0～tf1，两种不同第二时间窗信息约定时间范围分别是tn0～tk1、tn0～tk2。那么DMRS需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，参考AP-TRS的时间范围都为tr0～tk1，AP-CSI-RS-BM需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，参考AP-TRS的时间范围均为tr0～tk2。
例如，上述第二窗长也可以根据第一参考信号或第二参考信号周期性特性差异化配置。例如，基站指示periodic CSI-RS for CSI acquisition(P-CSI-RS-CSI)与periodic CSI-RS for tracking(P-TRS)满足QCL type A关系，那么可以将第二窗长与P-CSI-RS-CSI的周期或者P-TRS的周期关联。
如图11所示，基站配置第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw0，第一时间窗信息约定的时间范围为tn0～tf0。三个不同周期的P-TRS周期分别是8*Tp_base、2*Tp_base、Tp_base，第一个周期内的P-TRS时域范围都是tr0～tr1，第二窗长分别是Tp1、Tp2、Tp3，第二时间窗信息约定的时间范分别为tn0～tn1、tn0～tn2、tn0～tn3。P-CSR-RS-CSI周期为2*Td_base。其中Tp_base、Td_base分别为P-TRS、P-CSR-RS-CSI的基准周期，Tp1>Tp2>Tp3。那么在三个不同周期的P-TRS配置下，CSI-RS-CSI需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考三个不同周期的P-TRS的时间范围分别为tr0～tn1、tr0～tn2、tr0～tn3。
在不同第二时间窗下可以参考的不同周期性的P-TRS的时域范围不同，图中可以看出P-TRS周期分别为8*Tp_base、2*Tp_base、Tp_base时，P-CSI-RS-CSI在相应第二时间窗信息约定的时间范围内可以用于参考大尺度特性参数的P-TRS分别有一个周期内完整TRS信息、两个周期内完整TRS信息、一个周期内完整TRS信息加一个周期内部分TRS信息。
类似地，如图12所示，基站配置第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw1，第一时间窗信息约定的时间范围为tn0～tf0。P-TRS周期是2*Tp_base，第一个周期内的P-TRS时域范围tr0～tr1。三个周期不同的P-CSR-RS-CSI周期分别为Td_base、2*Td_base、4*Td_base，第二窗长分别是Tp1、Tp2、Tp3，第二时间窗信息约定的时间范分别为tn0～tn1、tn0～tn2、tn0～tn3。其中Tp_base、Td_base分别为P-TRS、P-CSR-RS-CSI的基准周期，Tp1>Tp2>Tp3。那么在同一周期的P-TRS配置下，三个不同周期的CSI-RS-CSI需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考的P-TRS的时间范围分别是tr0～tn1、tr0～tn2、tr0～tn3，在不同第二时间窗下可以参考的周期性的P-TRS的时域范围不同，图12中可以看出P-CSI-RS-CSI周期分别为Td_base、2*Td_base、4*Td_base时，P-CSI-RS-CSI在相应第二时间窗信息约定的时间范围内可以用于参考大尺度特性参数的P-TRS分别有三个周期内完整TRS信息、两个周期内完整TRS信息、一个周期内完整TRS信息。
基站指示semi-persistent CSI-RS for CSI acquisition(SP-CSI-RS-CSI)与P-TRS满足QCL type A关系，可以将第二窗长与P-TRS的周期关联。
如图13所示，基站配置第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw0，第一时间窗信息约定的时间范围为tn0～tf0。三个不同周期的P-TRS周期分别是8*Tp_base、2*Tp_base、Tp_base，第一个周期内的P-TRS时域范围都是tr0～tr1，第二窗长分别是Tp1、Tp2、Tp3，第二时间窗信息约定的时间范分别为tn0～tn1、tn0～tn2、tn0～tn3。SP-CSR-RS-CSI周期为2*Td_base。其中Tp_base、Td_base分别为P-TRS、SP-CSR-RS-CSI的基准周期，Tp1>Tp2>Tp3。那么在三个不同周期的P-TRS配置下，SP-CSI-RS-CSI需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考三个不同周期的P-TRS的时间范围分别是tr0～tn1、tr0～tn2、tr0～tn3。
在不同第二时间窗下可以参考的不同周期性的P-TRS的时域范围不同，图中可以看出P-TRS周期分别为8*Tp_base、2*Tp_base、Tp_base时，SP-CSI-RS-CSI在相应第二时间窗信息约定的时间范围内可以用于参考大尺度特性参数的P-TRS分别有一个周期内完整TRS信息、两个周期内完整TRS信息、一个周期内完整TRS信息加一个周期内部分TRS信息。
基站指示aperidoic CSI-RS for CSI acquisition(AP-CSI-RS-CSI)与P-TRS满足QCL type A关系，可以将第二窗长与P-TRS的周期关联。
如图14所示，基站配置第一时间参考点和第二时间参考点均为tn0，第一窗长为Tw0，第一时间窗信息约定的时间范围为tn0～tf0。三个不同周期的P-TRS周期分别是8*Tp_base、2*Tp_base、Tp_base，第一个周期内的P-TRS时域范围都是tr0～tr1，第二窗长分别是Tp1、Tp2、Tp3，第二时间窗信息约定的时间范分别为tn0～tn1、tn0～tn2、tn0～tn3。其中Tp_base为P-TRS的基准周期，Tp1>Tp2>Tp3。那么在三个不同周期的P-TRS配置下，AP-CSI-RS-CSI需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考三个不同周期的P-TRS的时间范围分别是tr0～tn1、tr0～tn2、tr0～tn3。在不同第二时间窗下可以参考的不同周期性的P-TRS的时域范围不同，图中可以看出P-TRS周期分别为8*Tp_base、2*Tp_base、Tp_base时，AP-CSI-RS-CSI在相应第二时间窗信息约定的时间范围内可以用于参考大尺度特性参数的P-TRS分别有一个周期内完整TRS信息、两个周期内完整TRS信息、一个周期内完整TRS信息加一个周期内部分TRS信息。
即第二窗长可以与大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期这些因素中的至少一项产生关联关系，其中，参考信号可以为第一参考信号，或者，参考信号为第二参考信号。
例如，第一参考信号和第二参考信号均为周期性信号的情况下，第二窗长可以与第一参考信号的周期关联，也可以与第二参考信号的周期关联；在第一参考信号为周期性信号，第二参考信号为非周期信号或者半持续信号的情况下，第二窗长可以与第一参考信号的周期关联。
在一种示例中，第二窗长与上述大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期这些因素之间的关联关系可以满足一定的函数关系，该函数关系可以包括正相关，也可以是反相关。
图15为本申请实施例提供的一种QCL关系确定方法的流程图，该方法可以应用于第二 节点(例如，基站)，如图15所示，该方法可以包括但不限于以下步骤：
S1501、配置指示信息。
本步骤中的指示信息可以包括QCL关联信息、第一时间窗信息和第二时间窗信息。其中，QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。第一时间窗信息包括第一时间参考点和第一窗长，第二时间窗信息包括第二时间参考点和第二窗长。
在本申请实施例中，第二节点可以通过静态配置的方式配置指示信息(或指示信息中的第二窗长)，或者，基站配置一组参数集合后通过动态信令的方式指示第二窗长，或者基站配置一组参数集合后，可以与第一节点联合确定第二窗长。
S1502、发送指示信息。
第二节点配置指示信息后，可以将指示信息发送至第一节点，以实现第一节点根据指示信息包括的QCL关联信息、第一时间窗信息和第二时间窗信息确定第一参考信号与第二参考信号之间的QCL关系。
本申请实施例提供了一种QCL关系确定方法，该方法可以包括配置指示信息，发送指示信息。其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息，QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL类型。通过上述设计，可以实现根据指示信息包括的QCL关联信息、第一时间窗信息和第二时间窗信息确定第一参考信号与第二参考信号之间的QCL关系。
上述QCL type包括QCL type A、QCL type B、QCL type C、QCL type D中的至少一个。
例如，上述第一参考信号可以包括SSB、CSI-RS、DMRS中的任意一个，第二参考信号可以包括DMRS、CSI-RS、PTRS中的任意一个。其中，第一参考信号可以理解为源信号，第二参考信号可以理解为目标信号，即第二参考信号可以通过第一参考信号的大尺度特性参数测量结果确定第二参考信号的大尺度特性参数。
上述第一时间窗信息用于确定第一参考信号与第二参考信号具有QCL关系的第一限定条件，第二时间窗信息用于确定第二参考信号与第一参考信号具有QCL关系的第二限定条件。
相应地，上述第一参考信号与第二参考信号具有QCL关系可以理解为第一参考信号与第二参考信号同时满足上述第一限定条件和第二限定条件。
在一种示例中，第一时间窗信息中的第一时间参考点可以包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第一时间参考点包括确定第二参考信号大尺度特性参数的时刻。
第二时间窗信息中的第二时间参考点可以包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第二时间参考点包括第一参考信号第n个符号或第n个时隙的开始或结束时刻；
其中，n为不超过第一参考信号所占用的符号数或时隙数的正整数。
示例性地，上述第二窗长的单位可以是符号数、时隙数、子帧数、帧数、秒、毫秒、微秒等，对于第二窗长可以有多种不同的配置，以实现不同场景下的差异化配置。
例如，第二窗长可以根据不同大尺度特性参数差异化配置。比如，分别为Doppler shift、Doppler spread、average delay、delay spread、Spatial Rx parameter配置不同的第二窗长，且不同大尺度特性参数的第二窗长之间满足一定的数量关系。
或者，第二窗长也可以根据不同大尺度特性参数组进行差异化配置。例如，将不同大尺度特性参数分组，同一组内的大尺度特性参数有相同的第二窗长，不同组之间的大尺度特性参数有不同的第二窗长，且不同组的第二窗长满足一定的数量关系。比如，可以按照{Doppler shift，Doppler spread}、{average delay，delay spread}、{Spatial Rx parameter}将大尺度特性参数分为三组，并为多组配置不同的第二窗长。
例如，第二窗长也可以根据不同QCL type差异化配置。例如，分别为QCL type A、QCL type B、QCL type C、QCL type D配置不同的第二窗长，不同QCL type的第二窗长满足一定的数量关系。
其中，不同的QCL type可以是与第二参考信号有QCL关系的同一个第一参考信号的两种不同的QCL type，也可以是与第二参考信号有QCL关系的两个不同的第一参考信号的QCL type，或者是与两个不同的第二参考信号有QCL关系的同一个第一参考信号的QCL type。
若上述不同的QCL type是与第二参考信号有QCL关系的两个不同的第一参考信号的QCL type，或者与第二参考信号有QCL关系的同一个第一参考信号的两个不同的QCL type，那么无论两个QCL type是否相同，都认为不同。
可例如，上述第二窗长也可以根据第一参考信号或第二参考信号周期性特性差异化配置。例如，基站指示periodic CSI-RS for CSI acquisition(P-CSI-RS-CSI)与periodic CSI-RS for tracking(P-TRS)满足QCL type A关系，那么可以将第二窗长与P-CSI-RS-CSI的周期或者P-TRS的周期关联。
例如，在第一参考信号和第二参考信号均为周期性信号的情况下，第二窗长可以与第一参考信号的周期关联，也可以与第二参考信号的周期关联；在第一参考信号为周期性信号，第二参考信号为非周期信号或者半持续信号的情况下，第二窗长可以与第一参考信号的周期关联。
即第二窗长可以与大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期这些因素中的至少之一关联。
例如，该关联关系可以包括第二窗长与大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期这些因素中的至少之一满足函数关系，例如，可以为正相关或者为负相关。
在一种示例中，参考信号可以为第一参考信号，或者，参考信号为第二参考信号。
在第一参考信号包括周期性信号的情况下，第二时间参考点包括指定第一参考信号第k个周期内第n个符号或时隙的开始或结束时刻；其中，n为不超过第一参考信号一个周期内所占用的符号数或时隙数的正整数，k为正整数。
如图16所示，在一种示例中，基站可以指示以下几种不同的场景下的第二时间参考点，例如，DMRS与AP-TRS满足Type A关系且第二时间参考点与第一时间参考点一致，或DMRS与AP-TRS满足Type A关系且第二时间参考点为AP-TRS第一符号开始时刻，或DMRS与P-TRS满足Type A关系且第二时间参考点为P-TRS第一个周期内最后一个符号结束时刻，或DMRS与P-TRS满足Type A关系且第二时间参考点为P-TRS第二个周期内第一个符号开始时刻。
上述四种场景中的第一时间参考点均为tn0，第一窗长均为Tw0，第二窗长均为Tp0，第二时间参考点分别为tm0、tm1、tm2、tm3，第一时间窗信息约定的时间范围均为tn0～tf0，第 二时间窗信息约定的时间范围分别为tn0～tm0、tn1～tm1、tn2～tm2、tn3～tm3。对应地，在上述四种场景下，DMRS需要使用Doppler shift、Doppler spread、average delay、delay spread等参数时，可以参考相应第二参考信号的时间范围分别是tn0～tm0、tn1～tm1、tn2～tm2、tn3～tm3。
在第一参考信号包括周期性信号的情况下，上述参考信号的周期为第一参考信号的周；在第二参考信号为周期性信号的情况下，参考信号的周期为所述第二参考信号的周期。
图17为本申请实施例提供的一种QCL关系确定装置，如图17所示，该装置可以包括：获取模块1701、确定模块1702；
其中，获取模块，设置为获取指示信息；
确定模块，设置为根据指示信息确定第一参考信号与第二参考信号之间的QCL关系；
其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息；
QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL type，例如，QCL type A、QCL type B、QCL type C、QCL type D中的至少一个。
示例性地，上述第一参考信号可以包括SSB、CSI-RS、DMRS中的任意一个，第二参考信号包括DMRS、CSI-RS、PTRS中的任意一个。第二参考信号可以通过第一参考信号的大尺度特性参数测量结果确定第二参考信号的大尺度特性参数。
在一种示例中，上述第一时间窗信息包括第一时间参考点和第一窗长，其中，第一时间窗信息用于确定第一参考信号与第二参考信号具有QCL关系的第一限定条件；第一时间参考点包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第一时间参考点包括确定第二参考信号大尺度特性参数的时刻。
第二时间窗信息包括第二时间参考点和第二窗长，第二时间窗信息用于确定第二参考信号与第一参考信号具有QCL关系的第二限定条件；第二时间参考点包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第二时间参考点包括第一参考信号第n个符号或第n个时隙的开始或结束时刻；
其中，n为不超过第一参考信号所占用的符号数或时隙数的正整数。
在第一参考信号为周期性信号的情况下，第二时间参考点包括指定第一参考信号第k个周期内第n个符号或时隙的开始或结束时刻；其中，n为不超过第一参考信号一个周期内所占用的符号数或时隙数的正整数，k为正整数。
例如，上述第一参考信号与第二参考信号具有QCL关系可以理解为第一参考信号与第二参考信号同时满足第一限定条件和第二限定条件。
第二窗长可以大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期中的至少之一关联，该关联可以理解为第二窗长可以大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期中的至少之一满足函数关系。
示例性地，上述参考信号可以为第一参考信号，或者，参考信号为第二参考信号。其中，在第一参考信号和第二参考信号均为周期性信号的情况下，第二窗长可以与第一参考信号的周期关联，也可以与第二参考信号的周期关联；在第一参考信号为周期性信号，第二参考信号为非周期信号或者半持续信号的情况下，第二窗长可以与第一参考信号的周期关联。即在第一参考信号为周期性信号的情况下，上述参考信号的周期为第一参考信号的周期。在第二参考信号为周期性信号的情况下，参考信号的周期为第二参考信号的周期。
本实施例提供的QCL关系确定装置设置为实现图1所示实施例的QCL关系确定方法，其实现原理和技术效果类似，此处不再赘述。
图18为本申请实施例提供的一种QCL关系确定装置，如图18所示，该装置可以包括：配置模块1801、发送模块1802；
其中，配置模块，设置为配置指示信息；
发送模块，设置为发送指示信息；
其中，指示信息包括QCL关联信息、第一时间窗信息和第二时间窗信息；
QCL关联信息包括与第二参考信号具有QCL关系的第一参考信号，以及QCL type。该QCL类型可以包括QCL type A、QCL type B、QCL type C、QCL type D中的至少一个。
第一参考信号可以包括SSB、CSI-RS、DMRS中的任意一个，第二参考信号可以包括DMRS、CSI-RS、PTRS中的任意一个。其中，第二参考信号可以通过第一参考信号的大尺度特性参数测量结果确定第二参考信号的大尺度特性参数。
在一种示例中，第一时间窗信息包括第一时间参考点和第一窗长。其中，第一时间窗信息用于确定第一参考信号与第二参考信号具有QCL关系的第一限定条件；第一时间参考点包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第一时间参考点包括确定第二参考信号大尺度特性参数的时刻。
第二时间窗信息包括第二时间参考点和第二窗长。其中，第二时间窗信息用于确定第二参考信号与第一参考信号具有QCL关系的第二限定条件；第二时间参考点包括指示第一参考信号与第二参考信号具有QCL关系的信令的接收时刻，或者，第二时间参考点包括第一参考信号第n个符号或第n个时隙的开始或结束时刻；
其中，n为不超过第一参考信号所占用的符号数或时隙数的正整数。
在第一参考信号包括周期性信号的情况下，第二时间参考点包括指定第一参考信号第k个周期内第n个符号或时隙的开始或结束时刻；其中，n为不超过第一参考信号一个周期内所占用的符号数或时隙数的正整数，k为正整数；
在一种示例中，上述第一参考信号与第二参考信号具有QCL关系包括：第一参考信号与第二参考信号同时满足第一限定条件和第二限定条件。
在一种示例中，第二窗长与大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期中的至少之一关联，该关联可以包括第二窗长与大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期中的至少之一满足函数关系。
上述参考信号可以为第一参考信号，或者，参考信号为第二参考信号。在第一参考信号和第二参考信号均为周期性信号的情况下，第二窗长可以与第一参考信号的周期关联，也可以与第二参考信号的周期关联；在第一参考信号为周期性信号，第二参考信号为非周期信号或者半持续信号的情况下，第二窗长可以与第一参考信号的周期关联。
即在第一参考信号为周期性信号的情况下，上述参考信号的周期为第一参考信号的周期。在第二参考信号为周期性信号的情况下，参考信号的周期为第二参考信号的周期。
本实施例提供的QCL关系确定装置设置为实现图15所示实施例的QCL关系确定方法，其实现原理和技术效果类似，此处不再赘述。
图19为一实施例提供的一种网络节点的结构示意图，如图19所示，该节点包括处理器 1901和存储器1902；节点中处理器1901的数量可以是一个或多个，图19中以一个处理器1901为例；节点中的处理器1901和存储器1902可以通过总线或其他方式连接，图19中以通过总线连接为例。
存储器1902作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请图1或图15实施例中的QCL关系确定方法对应的程序指令/模块(例如，QCL关系确定装置中的获取模块1701、确定模块1702，或者配置模块701、发送模块702配置模块1801、发送模块1802)。处理器1901通过运行存储在存储器1902中的软件程序、指令以及模块实现上述的QCL关系确定方法。
存储器1902可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据机顶盒的使用所创建的数据等。此外，存储器1902可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
在一种示例中，在可能的情况下，上述节点中的处理器也可以通过其内部的逻辑电路、门电路等硬件电路实现上述的QCL关系确定方法。
本申请实施例还提供了一种可读写存储介质，设置为计算机存储，该存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以执行上述实施例中的一种QCL关系确定方法。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。

Claims (24)

  1. 一种QCL关系确定方法，应用于第一节点，包括：
    获取指示信息；
    根据所述指示信息确定第一参考信号与第二参考信号之间的QCL关系；
    其中，所述指示信息包括准共址QCL关联信息、第一时间窗信息和第二时间窗信息；
    所述QCL关联信息包括与所述第二参考信号具有QCL关系的所述第一参考信号，以及QCL类型。
  2. 根据权利要求1所述的方法，其中，所述QCL类型包括QCL type A、QCL type B、QCL type C、QCL type D中的至少一个。
  3. 根据权利要求1或2所述的方法，其中，所述第一参考信号包括同步广播信号块SSB、信道状态信息参考信号CSI-RS、解调参考信号DMRS中的任意一个；
    所述第二参考信号包括DMRS、CSI-RS、相位跟踪参考信号PTRS中的任意一个。
  4. 根据权利要求1所述的方法，其中，
    所述第一时间窗信息包括第一时间参考点和第一窗长，所述第一时间窗信息用于确定所述第一参考信号与所述第二参考信号具有QCL关系的第一限定条件；
    所述第一时间参考点包括指示所述第一参考信号与所述第二参考信号具有QCL关系的信令的接收时刻，或者，所述第一时间参考点包括确定第二参考信号大尺度特性参数的时刻；
    所述第二时间窗信息包括第二时间参考点和第二窗长，所述第二时间窗信息用于确定所述第二参考信号与所述第一参考信号具有QCL关系的第二限定条件；
    所述第二时间参考点包括指示所述第一参考信号与所述第二参考信号具有QCL关系的信令的接收时刻；或者，所述第二时间参考点包括所述第一参考信号第n个符号的开始或结束时刻，或者所述第一参考信号的第n个时隙的开始或结束时刻；
    其中，n为不超过所述第一参考信号所占用的符号数或时隙数的正整数。
  5. 根据权利要求4所述的方法，其中，在所述第一参考信号为周期性信号的情况下，所述第二时间参考点包括指定所述第一参考信号第k个周期内第n个符号的开始或结束时刻，或者所述第一参考信号第k个周期内第n个时隙的开始或结束时刻；
    其中，n为不超过所述第一参考信号一个周期内所占用的符号数或时隙数的正整数，k为正整数。
  6. 根据权利要求4所述的方法，其中，所述第一参考信号与所述第二参考信号具有QCL关系包括：
    所述第一参考信号与所述第二参考信号同时满足所述第一限定条件和所述第二限定条件。
  7. 根据权利要求4所述的方法，其中，所述第二窗长与参考因素关联，所述参考因素包括以下至少之一：
    大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期。
  8. 根据权利要求7所述的方法，其中，所述第二窗长与所述参考因素关联包括所述第二窗长与所述参考因素满足函数关系。
  9. 根据权利要求7所述的方法，其中，所述参考信号为第一参考信号，或者，所述参考信号为第二参考信号。
  10. 根据权利要求9所述的方法，其中，
    在所述第一参考信号为周期性信号的情况下，所述参考信号的周期为所述第一参考信号的周期；
    在所述第二参考信号为周期性信号的情况下，所述参考信号的周期为所述第二参考信号的周期。
  11. 一种QCL关系确定方法，应用于第二节点，包括：
    配置指示信息；
    发送所述指示信息；
    其中，所述指示信息包括准共址QCL关联信息、第一时间窗信息和第二时间窗信息；
    所述QCL关联信息包括与所述第二参考信号具有QCL关系的所述第一参考信号，以及QCL类型。
  12. 根据权利要求11所述的方法，其中，所述QCL类型包括QCL type A、QCL type B、QCL type C、QCL type D中的至少一个。
  13. 根据权利要求11或12所述的方法，其中，所述第一参考信号包括同步广播信号块SSB、信道状态信息参考信号CSI-RS、解调参考信号DMRS中的任意一个；
    所述第二参考信号包括DMRS、CSI-RS、相位跟踪参考信号PTRS中的任意一个；
  14. 根据权利要求11所述的方法，其中，
    所述第一时间窗信息包括第一时间参考点和第一窗长，所述第一时间窗信息用于确定所述第一参考信号与所述第二参考信号具有QCL关系的第一限定条件；
    所述第一时间参考点包括指示所述第一参考信号与所述第二参考信号具有QCL关系的信令的接收时刻，或者，所述第一时间参考点包括确定第二参考信号大尺度特性参数的时刻；
    所述第二时间窗信息包括第二时间参考点和第二窗长，所述第二时间窗信息用于确定所述第二参考信号与所述第一参考信号具有QCL关系的第二限定条件；
    所述第二时间参考点包括指示所述第一参考信号与所述第二参考信号具有QCL关系的信令的接收时刻；或者，所述第二时间参考点包括所述第一参考信号第n个符号的开始或结束时刻，或第一参考信号第n个时隙的开始或结束时刻；
    其中，n为不超过所述第一参考信号所占用的符号数或时隙数的正整数。
  15. 根据权利要求14所述的方法，其中，在所述第一参考信号包括周期性信号的情况下，所述第二时间参考点包括指定所述第一参考信号第k个周期内第n个符号的开始或结束时刻，或者所述第一参考信号第k个周期内第n个时隙的开始或结束时刻；
    其中，n为不超过所述第一参考信号一个周期内所占用的符号数或时隙数的正整数，k为正整数。
  16. 根据权利要求14所述的方法，其中，所述第一参考信号与所述第二参考信号具有QCL关系包括：
    所述第一参考信号与所述第二参考信号同时满足所述第一限定条件和所述第二限定条件。
  17. 根据权利要求14所述的方法，其中，所述第二窗长与参考因素关联，所述参考因素包括以下至少之一：
    大尺度特性参数、大尺度特性参数组、QCL type、参考信号的周期。
  18. 根据权利要求17所述的方法，其中，所述第二窗长与所述参考因素关联包括所述第二窗长与所述关联因素满足函数关系。
  19. 根据权利要求17所述的方法，其中，所述参考信号为第一参考信号，或者，所述参考信号为第二参考信号。
  20. 根据权利要求19所述的方法，其中，在所述第一参考信号为周期性信号的情况下，所述参考信号的周期为所述第一参考信号的周期；
    在所述第二参考信号为周期性信号的情况下，所述参考信号的周期为所述第二参考信号的周期。
  21. 一种QCL关系确定装置，包括：
    获取模块，设置为获取指示信息；
    确定模块，设置为根据所述指示信息确定第一参考信号与第二参考信号之间的QCL关系；
    其中，所述指示信息包括准共址QCL关联信息、第一时间窗信息和第二时间窗信息；
    所述QCL关联信息包括与所述第二参考信号具有QCL关系的所述第一参考信号，以及QCL类型。
  22. 一种QCL关系确定装置，包括：
    配置模块，设置为配置指示信息；
    发送模块，设置为发送所述指示信息；
    其中，所述指示信息包括准共址QCL关联信息、第一时间窗信息和第二时间窗信息；
    所述QCL关联信息包括与所述第二参考信号具有QCL关系的所述第一参考信号，以及QCL类型。
  23. 一种通信节点，包括：处理器，所述处理器执行计算机程序时，实现如权利要求1-10任一项所述的QCL关系确定方法，或者，如权利要求11-20任一项所述的QCL关系确定方法。
  24. 一种计算机可读写存储介质，所述计算机可读写存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-10任一项所述的QCL关系确定方法，或者，如权利要求11-20任一项所述的QCL关系确定方法。
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