WO2019029328A1 - 参考信号的配置方法及装置 - Google Patents
参考信号的配置方法及装置 Download PDFInfo
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- WO2019029328A1 WO2019029328A1 PCT/CN2018/096115 CN2018096115W WO2019029328A1 WO 2019029328 A1 WO2019029328 A1 WO 2019029328A1 CN 2018096115 W CN2018096115 W CN 2018096115W WO 2019029328 A1 WO2019029328 A1 WO 2019029328A1
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- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
- H04L5/10—Channels characterised by the type of signal the signals being represented by different frequencies with dynamo-electric generation of carriers; with mechanical filters or demodulators
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- 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
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/373—Predicting channel quality or other radio frequency [RF] parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- 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
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- 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
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- 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—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
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- 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—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
Definitions
- the present disclosure relates to, but is not limited to, the field of communications.
- the ultra-wide bandwidth high frequency band (ie, millimeter wave communication) has become an important direction for the development of mobile communication in the future, attracting the attention of academic and industrial circles around the world.
- the advantages of millimeter waves have become more and more attractive when the increasingly congested spectrum resources and physical networks are heavily accessed.
- standards organizations such as IEEE and 3GPP, corresponding standardization work has begun.
- high-band communication will become an important innovation point of 5G New Radio Access Technology (New RAT) with its significant advantages of large bandwidth.
- New RAT 5G New Radio Access Technology
- high-band communication also faces the challenge of link attenuation, specifically including large loss of propagation path, greater absorption of air absorption (especially oxygen), and heavy rain attenuation. Faced with these challenges, high-band communication systems can take advantage of the high frequency band and short antenna integration, and achieve high antenna gain and signal transmission loss through multi-antenna array and beamforming schemes to ensure link margin. And improve communication robustness.
- the high frequency band sends a training pilot, and the terminal receives the channel and performs channel estimation. Then, the high-band receiver needs to feed back the channel state information to the training initiator, so that the transceiver can select the weights of multiple groups of transceiver antennas that can be used for multi-channel data transmission.
- the beam indication is based on the sequence number of the transmission beam, thereby assisting the beam training at the receiving end. Beam indication by reference signals is increasingly difficult to use due to user movement and channel changes, and faces the problem of greatly increasing the reference signal overhead.
- Embodiments of the present disclosure provide a method and an apparatus for configuring a reference signal.
- a method for configuring a reference signal which is applied to a first communication node, and includes:
- a configuration apparatus for a reference signal is further provided, which is applied to the first communication node, and includes:
- a first configuration module configured to configure a first type of parameter set of the first type of reference signal index, where the first type of parameter set includes N index elements, and N is an integer greater than or equal to 1;
- a first generation module configured to generate a first type of signaling according to the first type of parameter set, where the first type of signaling carries the first type of parameter set;
- the first sending module is configured to send the first type of signaling to the second communications node.
- a method for configuring a reference signal including:
- a configuration apparatus for a reference signal is further provided, which is applied to the second communication node, and includes:
- the first receiving module is configured to receive the first type of signaling sent by the first communications node
- a processing module configured to determine, according to the first type of signaling, a first type of parameter set of the configured first type of reference signal index, where the first type of parameter set includes N index elements, where N is greater than or An integer equal to 1.
- a storage medium comprising a stored program, wherein the program is executed to perform the method of any of the above.
- a processor configured to execute a program, wherein the program is executed to perform the method of any of the above.
- a first type of parameter set of a first type of reference signal index is configured, where the first type of parameter set includes N index elements, and N is an integer greater than or equal to 1;
- the first type of signaling carries the first type of parameter set, and the first type of signaling is sent to the second communication node, which solves the reference signal in the related art.
- How to efficiently apply the index to the reference signal attribute or feature configuration operation that is, how to configure the reference signal, realize the configuration of the reference signal, and flexibly expand or revise the reference information index set.
- FIG. 1 is a flowchart of a method of configuring a reference signal according to an embodiment of the present disclosure
- FIG. 2 is a schematic diagram of a reference signal correlation index set in accordance with an embodiment of the present disclosure
- FIG. 3 is a schematic diagram of a reference signal channel feature indication in accordance with an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of a reference signal sequence combination grouping according to an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of joint indication of reference signal channel characteristics and resource mapping by quasi-co-location indication (PQI) and CSI-RS index elements, in accordance with an embodiment of the disclosure
- FIG. 6 is a block diagram of a configuration apparatus of a reference signal according to an embodiment of the present disclosure.
- FIG. 1 is a flowchart of a method for configuring a reference signal according to an embodiment of the present disclosure. As shown in FIG. 1, the flow includes the following steps. step:
- Step S102 configuring a first type of parameter set of the first type of reference signal index, where the first type of parameter set includes N index elements, and N is an integer greater than or equal to 1;
- Step S104 generating a first type of signaling according to the first type of parameter set, where the first type of signaling carries the first type of parameter set;
- Step S106 sending the first type of signaling to the second communication node.
- the second communication node receives the first type of signaling sent by the first communications node
- a first type of parameter set of the first type of reference signal index where the first type of parameter set includes N index elements, and N is an integer greater than or equal to 1; according to the first type of parameters
- the set generates the first type of signaling, where the first type of signaling carries the first type of parameter set; the first type of signaling is sent to the second communication node, and the index of the reference signal in the related art is solved.
- How to efficiently apply the reference signal attribute or feature configuration operation that is, how to configure the reference signal, realize the configuration of the reference signal, and flexibly expand or revise the reference information index set.
- the first type of parameter set includes at least one of the following parameters: mapping information of a resource element (Resource Element, RE for short), mapping information of a control channel RE, and demodulation reference signal (DeModulation Reference) Signal, referred to as DMRS) Quasi Co-Location (QCL) information; QCL information of demodulation reference signal port group (DMRS port group); Channel State Information Reference Signal (Channel State Information Reference Signal, Referred to as CSI-RS) reference signal configuration information.
- mapping information of a resource element Resource Element, RE for short
- mapping information of a control channel RE referred to as DMRS
- Demodulation Reference DeModulation Reference
- QCL QCL information of demodulation reference signal port group
- CSI-RS Channel State Information Reference Signal
- the first type of parameter set includes a subset of F first type parameter sets, and each subset includes G index elements, where F and G are integers greater than or equal to 1.
- the reference signal included in the subset of the first parameter set of the G index elements is associated with one of the index elements:
- the association refers to a reference signal corresponding to the reference signal included in the subset of the first type of parameter set, and satisfies a channel feature hypothesis, wherein the channel feature hypothesis includes one of the following: QCL hypothesis, spatial QCL hypothesis, meeting spatial reception parameter requirements.
- the index element may include at least one of the following configuration information: an index element sequence number, a reference signal type index, a reference signal resource configuration index, a reference signal resource set index, a reference signal resource index, a reference signal port index, Resource block index, resource block burst index, resource block burst set index, measurement limit window index, time domain window index, report configuration index, beam packet index, measurement constraint, configuration constraint, and time constraint.
- the first type of reference signal when the first type of signaling is sent to the second communication node, is a configured, measured, or reported reference signal.
- the first type of reference signal includes at least one of: a synchronization signal block (SS block), a CSI-RS, a Sounding Reference Signal (SRS), and a physical random access channel.
- SS block synchronization signal block
- SRS Sounding Reference Signal
- PRACH Physical Random Access CHannel
- DMRS Physical Random Access CHannel
- the method may further include:
- the configured index element is updated or configured according to the signaling indication.
- the content under the serial number is the content carried by the signaling.
- the maximum number of indexes of the first type of reference signals supported is greater than or equal to N.
- the method may further include:
- Generating a second type of signaling wherein the second type of signaling is used to select, activate or deactivate an index element in the first set of parameter sets or a subset of the first type of parameter set, selected or activated
- the K index elements or the subset of the first type parameter set constitute a second type parameter set, and K is an integer greater than or equal to 1;
- the second communication node receives the second type of signaling sent by the first communication node
- the method may further include:
- index elements that do not belong to the first type of parameter set are deleted.
- the method may further include:
- the third type parameter set includes R third type parameter sets a subset, the third set of parameter sets includes hi index elements, and R and hi are integers greater than or equal to one.
- the method may further include:
- Generating a third type of signaling where the third type of signaling is used to indicate an index element in the first type of parameter set, or an index element in the second type of parameter set or the third type of parameter set a set, mapped and associated with the second type of reference signal;
- the second communication node receives the third type of signaling sent by the first communications node
- the second type of reference signal further includes one of the following:
- mapping information of the data channel RE mapping information of the control channel RE, DMRS port information, DMRS port group information, CSI-RS reference signal configuration information, downlink shared channel resource mapping, and quasi-co-located PQI information.
- the method may further include:
- the fourth type of signaling indicates an index element in the second type of parameter set, or a subset of the first type of parameter set activated or selected in the second type of parameter set Or a subset of the first set of parameter sets, or an index element of the first set of parameter sets, for demodulation and/or beam indication of data or control channels associated with the fourth type of signaling;
- the second communication node receives the fourth type of signaling sent by the first communications node
- the method may further include:
- the second type of reference signal includes U second type reference signal subsets, wherein each second type of reference signal subset satisfies a channel characteristic hypothesis; an index element in the first type of parameter set, and a second type parameter
- the number of index elements in the set or the index elements in the subset of the third type parameter set is T, where U and T are integers greater than or equal to 1, and the channel characteristic hypothesis includes one of the following: QCL hypothesis, spatial QCL hypothesis Meet the spatial receiving parameter requirements.
- the second type of reference signal subset, or the second type of reference signal element can only be mapped with one index element.
- mapping rule comprises at least one of the following:
- mapping relationship is from the first communication node configuration or a predefined mapping relationship set
- U subsets of the second type of reference signals are sequentially mapped with T index elements or subsets;
- V is 1, or a positive number greater than 1 or less than 1, if the cumulative step is a non-integer, rounded.
- V T / U, or V is specified by the first communication node.
- the second type of reference signal includes at least one of the following: an UpLink DeModulation Reference Signal (UL DMRS), and a DownLink DeModulation Reference Signal (DL).
- UL DMRS UpLink DeModulation Reference Signal
- DL DownLink DeModulation Reference Signal
- DMRS DownLink DeModulation Reference Signal
- CSI-RS CSI-RS
- SRS Tracking Reference Signal
- TRS Tracking Reference Signal
- the second type of reference signal corresponds to an index element in the first type parameter set or an index element in the second type parameter set or the third type parameter set subset.
- the reference signal satisfies a channel characteristic hypothesis, wherein the channel characteristic hypothesis includes one of the following: a QCL hypothesis, a spatial QCL hypothesis, and a spatial reception parameter requirement.
- the method may further include:
- the signaling of the second type of parameter set is sent to the valid or the signaling of the third type of parameter set is sent to the active Y time unit or X time windows, wherein the time unit is orthogonal frequency division Orthogonal Frequency Division Multiplexing (OFDM) symbols, slots or subframes.
- OFDM Orthogonal Frequency Division Multiplexing
- the method may further include:
- the channel characteristic hypothesis includes one of the following: QCL hypothesis, spatial QCL hypothesis, and meeting spatial reception parameter requirements.
- the method may further include:
- the third type of reference signal after activating or selecting an index element in the first type of parameter set, or adding an index element to a second type of parameter set, after the X time units or the second communication node replies the confirmation
- the transmission is transmitted on a periodic or semi-persistent transmission window, where X is an integer greater than or equal to 0, and the time unit is an OFDM symbol, a slot or a subframe.
- the third type of reference signal comprises at least one of the following:
- the index indication information pool required to establish the association (combination) of the reference signal with the previous reference signal, and its associated (combined) effective time, mapping method, and beam indication serving the DL and UL reference signals (groups) simultaneously .
- a multi-layer reference signal index indication method is constructed, and the time-frequency tracking signal and the explicit delay duration are activated, thereby realizing a one-to-one, one-to-many and many-to-many mapping relationship between the reference signal and the reference signal.
- channel feature assumptions In this solution, there is no global beam sequence indication, and the method of flexibly expanding or revising the reference signal index set can be used for beam indication.
- the channel characteristics that is, including physical propagation channel characteristics, such as horizontal transmission azimuth, vertical transmission azimuth, horizontal reception azimuth, vertical reception azimuth, etc., also include characteristics of radio frequency and baseband circuits, such as antenna pattern features (element pattern) ), antenna placement, and baseband time offset, frequency offset and phase noise;
- the beam may be a resource (eg, originating precoding, terminating precoding, antenna port, antenna weight vector, antenna weight matrix, etc.), and the beam symbol may be replaced with a resource index because the beam may be associated with some time-frequency code resources. Binding on the transport.
- the beam may also be a transmission (transmit/receive) mode; the transmission mode may include space division multiplexing, frequency domain/time domain diversity, and the like.
- the beam indication means that the transmitting end can indicate by using the current reference signal and the antenna port and the reference signal (or reference reference signal) reported by the UE feedback and the QCL hypothesis of the antenna port.
- the receiving beam refers to a beam of the receiving end that does not need to be indicated, or a reference signal (or a reference reference signal) that the transmitting end can report back to the UE through the current reference signal and the antenna port, and a beam of the receiving end under the QCL indication of the antenna port.
- the parameters involved in the QCL include at least: Doppler spread, Doppler shift, delay spread, average delay, average gain, and spatial receive parameters;
- FIG. 2 is a schematic diagram of a reference signal related index set according to an embodiment of the present disclosure.
- a base station configures a CSI-RS resource pool (indicated in English as a CSI-RS resource pool) by using RRC signaling.
- the configuration of the pool is communicated to each user via UE-specific RRC or system broadcast messages.
- Each CSI-RS resource has an index information, and then the CSI-RS resource configuration (in English expressed as CSI-RS resource setting).
- some resources are selected from the CSI-RS resource pool to form a CSI-RS resource set (in English, expressed as CSI-RS resource set).
- a CSI-RS resource configuration may include multiple CSI-RS resource sets.
- parameters such as element mapping, port number, and time domain behavior characteristics (eg, periodic, semi-persistent, and aperiodic) of each CSI-RS resource are configured accordingly.
- the base station can select an ideal reference signal index, that is, transmit beam information, from the previously transmitted reference signals. Specifically, the base station configures a first set of reference indexes of the first type of reference signals, where the set includes N index elements;
- the first type of signaling is sent to the second communication node.
- N is an integer greater than or equal to 1;
- the index element includes at least one or a combination of the following configuration information: an index element sequence number, a reference signal type index (indicated by a reference signal (RS) type indicator), and a reference signal resource configuration index (in English, an RS resource setting indicator).
- Reference signal resource set index in English expressed as RS resource set indicator
- reference signal resource index in English expressed as RS resource indicator
- reference signal port index in English expressed as RS resource set port indicator
- resource block index in English expressed as Block indicator
- resource block burst index English expression is Block burst indicator
- resource block burst set index International expression is Block burst set indicator
- measurement limit window index English expression is Measurement restriction window indicator
- time domain Window index in English expressed as time-domain window indicator
- report configuration index English expression is Reporting setting indicator
- beam grouping index English expression is Beam group indicator
- measurement constraint English expression is Measurement restriction
- configuration constraints in English expressed as Setting restriction
- time constraints in English expressed as Time-domain restriction
- the measurement constraint means that the combination of parameters such as the most recent tag-k, interference or signal measurement is constrained by the most recently measured, or the last X, or each measurement has a corresponding tag.
- X is an integer greater than or equal to 1.
- the base station side specifies that the reference signal index is index information for the interference measurement mode or index information for the channel measurement mode. Further, in the two types of measurement modes, the configuration of the reference signal is partially reusable.
- the configuration constraint refers to that the most recently configured, or the most recent Y is configured, or each configuration has a corresponding tag, indicating that the latest tag-m is configured.
- Y is an integer greater than or equal to 1.
- the time constraint refers to the time domain window x, or the most recent time window.
- x is the representation index for the time domain window.
- the time domain constraint refers to a higher level index of the measurement limit window.
- the measurement limit window index varies from 0 to 3 and cycles through the time domain cycle; and the time domain constraint is an index indicating each cycle in the periodic cycle, for example, the range of 0 to 15. It is necessary to emphasize that the periodic characteristics are considered, and therefore, the time domain window of 0 to 15 which is seen most recently from the configuration time.
- the first type of signaling may be RRC or MAC-CE signaling.
- the index information relates to the reference time domain reference point (eg, the previous X time domain unit, or the most recent X configured).
- the reference time domain reference point is the transmission time of the first type of signaling; or the transmission time of the first type of signaling plus a predefined or configured time domain offset; or Configuring a time domain reference point of one cycle, and the most recent, just occurring, or soon to be transmitted time domain reference point (from the time domain reference point of the cycle) sent as the first type of signaling Time domain reference point of the reference; or, configure a time domain window of one cycle, and the time domain window that has been experienced recently, is experiencing, or is about to go through the first type of signaling (from the cycle In the time domain window) as the time domain reference point for the reference.
- the first type of reference signal is a configured, measured or reported reference signal.
- the first type of reference signal is one or a combination of the following: SS block, CSI-RS, SRS, PRACH, DMRS.
- the index information may be one or a combination of: SS block index; SS block burst index; SS block burst set index; time domain window index.
- the index information may be: Window/reporting ID+CSI-RS resource set ID+CRI (CSI-RS Resource Indicator), or Window/reporting ID+CSI- RS resource setting ID (+CSI-RS resource set ID) + CRI.
- the window ID here may be a measurement limit window index or a report configuration index.
- the window ID (for example, the measurement limit index) can be composed of two levels of indexes.
- the measurement limit window index varies from 0 to 3 and cycles through the time domain cycle; and the time domain constraint is an index indicating each cycle in the periodic cycle, for example, the range of 0 to 15. It is necessary to emphasize that the periodic characteristics are considered, and therefore, the time domain window of 0 to 15 which is seen most recently from the configuration time.
- the index information may be: Window/reporting ID+CSI-RS resource ID+CRI or Window/reporting ID+CSI-RS resource setting ID(+CSI-RS resource set ID)+CRI, or most recently CSI-RS resource setting ID+CSI-RS resource set ID+CRI under triggered CSI-RS resource setting or reporting configuration.
- the index information may be: Window ID/SRS resource setting ID+(SRS resource set ID)+SRI (SRI indicates SRS resource indicator);
- Aperiodic or semi-persistent SRS Window ID/SRS resource setting ID+(SRS resource set ID)+SRI, or recently triggered (SRS resource set X)+SRI.
- the base station can reconfigure the first type of set, specific operations, including
- the existing index element is updated according to the indication of the signaling. content.
- the maximum per configuration is N, from the perspective of standard support, the maximum number of index elements that can be supported is greater than or equal to N.
- FIG. 3 is a schematic diagram of a reference signal channel feature indication according to an embodiment of the present disclosure.
- a base station sends a second type of signaling to activate or deactivate a first
- the index elements in the class collection, and the activated K index elements constitute the second class collection.
- the base station selects an index element to activate from the CSI-RS index set.
- the base station can directly reconfigure the second type of set, including adding an index element to the second type set; or deleting an index element that does not belong to the first type set from the second type set.
- the first communication node when the index element in the first class set is activated, or the index element is added to the second class set, the first communication node returns the confirmation after the X time units or after the second communication node according to the predefined transmission mode.
- the third type of reference signal is sent directly or on a periodic or semi-continuous transmission window.
- the third type of reference signal is required to satisfy the channel feature hypothesis with the index element in the activated first class set or the index element to the second class set. Further, the channel characteristics are assumed to be QCL hypotheses, spatial QCL hypotheses, and satisfy spatial reception parameter requirements.
- the time unit may be an OFDM symbol, a slot or a subframe.
- the third type of reference signal is a CSI-RS, a CSI-RS signal for time-frequency domain tracking, or a TRS.
- the related configuration of the third type of reference signal, and activation of the index elements in the first class set, or the addition of index elements to the second class set may be pre-configured.
- the potential transmission window of the third type of reference signal is first configured in RRC signaling (eg, relation to the SS block) to the reference reference signal, and then, for "activating the index element of the first type of reference signal, or adding
- RRC signaling eg, relation to the SS block
- the corresponding relationship with the SS block is first configured; then, after the index element of the first type reference signal is activated, the reference signal corresponding to the index element and an SS block satisfy the channel feature hypothesis, based on Enables the TRS signal that satisfies the channel characteristic hypothesis with the same SS block.
- This operation can be based on pre-configuration or indicated by an additional signaling.
- the base station instructs the index element therein to perform beam indication.
- the number of elements in the second class set is significantly less than the first class set, so if the DCI performs beam indication, the DCI cost will be large.
- the amplitude is reduced, for example only two bits are needed.
- the beam indication means that the demodulation reference signal of the control or data channel and the reference signal indicated by the DCI satisfy the spatial QCL hypothesis, that is, obey the spatial reception parameter hypothesis.
- the base station side generates a third type of signaling, indicating an index element in the second type set or a third type set subset, associated with the second type of reference signal, the association indicating, the second type of reference signal and the second type
- the reference signal corresponding to the index element in the set or the subset of the third type set meets the channel feature hypothesis, wherein the channel feature hypothesis includes one of the following: QCL, spatial QCL parameter, spatial receive QCL parameter.
- the third class set is constructed by selecting an index element from the second class set, and/or the first class set, and includes R third class set subsets, wherein the third class set subset includes hi Index elements.
- the third type of set contains three subsets, wherein the third subset (ID-10) contains two index information, indicating that two different beam directions can be indicated at the same time.
- the DCI signaling indicates that the subset in the third class set indicates that the subset in the third class set, for example, 10, indicates that the DMRS port group) is associated with the indicated reference signal index subset, that is, at least satisfies the spatial QCL hypothesis. Or, satisfy the QCL hypothesis of "Doppler spread, Doppler shift, delay spread, average delay and spatial receive parameters".
- a CSI-RS index library ie, a first type set
- the MAC-CE activates a CSI-RS index element (ie, a second type set), and in addition, the MAC -CE can also directly add index elements to the second type of collection.
- the MAC-CE may choose to construct a third set of sets from the second set of sets.
- the third type of collection contains three subsets, wherein the ID-10 subset contains two index elements.
- the DCI signaling selects a subset from the third set of sets for a QCL hypothesis indication for the DMRS port of the PDSCH.
- the index elements under ID-10 are mapped with DMRS port groups a and b.
- the second type of reference signal subset, or the second type of reference signal element can only be mapped with one index element of the ID-10.
- the second type of reference signal may be one or a combination of the following: UL DMRS, DL DMRS, CSI-RS, SRS, TRS.
- the second type of reference signal is a U subset of the second type of reference signals, wherein each of the second type of reference signal subsets satisfies a channel characteristic hypothesis;
- the number of index elements in the indicated second class set or index elements in the third class set subset is T;
- the association refers to mapping a second type of reference signal subset with the indicated index element according to a predefined rule.
- Predefined rules include one or a combination of the following:
- the first communication node specifies a mapping relationship from the first communication node configuration or a predefined mapping relationship set.
- U subsets of the second type of reference signals are sequentially mapped with T index elements
- generating a second type of set or a third type of set signaling to take effect requires Y time units, or U time windows below;
- the time unit may be an OFDM symbol, a slot or a subframe.
- a CSI-RS index set is configured by high layer signaling, as shown in Table 1.
- the indication includes the CSI-RS index set and the CSI-RS resource corresponding to the index element in the index set.
- the indication of the transmit beam is indicated by the indication information of the CSI-RS resource corresponding to the index element, for example, the CSI-RS resource configuration ID+CSI-RS resource index (CRI), or the CSI-RS resource configuration ID. + CSI-RS Resource Set Index + CSI-RS Resource Index (CRI), characterizing the indication of the transmit beam.
- the base station further configures N PQI parameter sets for indicating PDSCH RE mapping and QCL information by using high layer signaling, where each PQI parameter set includes mapping information of the data channel RE, mapping information of the control channel RE, and DMRS port.
- the base station activates or deactivates the CSI-RS index from the CSI-RS index set and selects M parameter sets from the N PQI parameter sets, where M and N are integers greater than one. among them,
- the DMRS port group in each PQI parameter set is configured one or in multiple activated CSI-RS indexes from the CSI-RS index set for QCL hypothesis indication under spatial reception parameters; further, if the CSI- The RS is periodic or semi-continuous and needs to be configured with its corresponding measurement limit window ID.
- the DMRS port group in each PQI parameter set is associated with the TRS resource for QCL hypothesis indication under Doppler shift, Doppler spread, average delay, and delay spread parameters;
- the base station indicates, by DCI signaling, an activated set of PQI parameters for demodulation of the data channel.
- the measurement limit window index needs to be provided together with the CSI-RS index element.
- the index indication information pool required for establishing the association (combination) of the reference signal with the previous reference signal, and the associated (combined) effective time, mapping method, and serving at the same time Beam indication of DL and UL reference signals (groups).
- FIG. 6 is a block diagram of a configuration apparatus of a reference signal according to an embodiment of the present disclosure, which is shown in FIG. :
- the first configuration module 62 is configured to configure a first type of parameter set of the first type of reference signal index, where the first type of parameter set includes N index elements, and N is an integer greater than or equal to 1;
- the first generation module 64 is configured to generate the first type of signaling according to the first type of parameter set, where the first type of signaling carries the first type of parameter set;
- the first sending module 66 is configured to send the first type of signaling to the second communications node.
- the first type of parameter set includes at least one of the following parameters: mapping information of a data channel RE, mapping information of a control channel RE, QCL information of a DMRS port, QCL information of a DMRS port group, and CSI -RS reference signal configuration information.
- the first type of parameter set includes a subset of F first type parameter sets, and each subset includes G index elements, where F and G are integers greater than or equal to 1.
- the reference signal included in the subset of the first parameter set of the G index elements is associated with one of the index elements:
- the association refers to a reference signal corresponding to the reference signal included in the subset of the first type of parameter set, and satisfies a channel feature hypothesis, wherein the channel feature hypothesis includes one of the following: QCL hypothesis, spatial QCL hypothesis, meeting spatial reception parameter requirements.
- the index element includes at least one of the following configuration information: an index element sequence number, a reference signal type index, a reference signal resource configuration index, a reference signal resource set index, a reference signal resource index, a reference signal port index, and a resource.
- the first type of reference signal when the first type of signaling is sent to the second communication node, is a configured, measured, or reported reference signal.
- the first type of reference signal includes at least one of the following: SS block, CSI-RS, SRS, PRACH, DMRS.
- the device may further include:
- An update module configured to update an index element of a portion of the first type of parameter set, or a subset of a portion of the first type of reference signal set;
- Deleting a module configured to delete an index element of a portion of the first type of parameter set, or a subset of a portion of the first type of reference signal set;
- a new module is configured to add an index element to the first type of parameter set.
- the device may further include:
- a second configuration module configured to update or configure the configured index according to the signaling indication, if the index element sequence number configured in the first type of parameter set is consistent with the index element sequence number indicated by the signaling
- the content under the element serial number is the content of the signaling bearer.
- the maximum number of indexes of the first type of reference signals supported is greater than or equal to N.
- the device may further include:
- a second generation module configured to generate a second type of signaling, where the second type of signaling is used to select, activate, or deactivate an index element in the first type of parameter set or a child of the first type of parameter set a set of selected or activated K index elements or a subset of the first set of parameter sets constitutes a second set of parameters, K being an integer greater than or equal to 1;
- a second sending module configured to send the second type of signaling to the second communications node.
- the device may further include:
- index elements that do not belong to the first type of parameter set are deleted.
- the device may further include:
- a selection module configured to select an index element from the second type parameter set and/or the first type parameter set to form a third type parameter set, wherein the third type parameter set includes R first A subset of three types of parameter sets, the third set of parameter sets comprising hi index elements, and R and hi are integers greater than or equal to one.
- the device may further include:
- a third generation module configured to generate a third type of signaling, where the third type of signaling is used to indicate an index element in the first type of parameter set, or an index element or a a third subset of parameter sets, mapped and associated with the second type of reference signals;
- a fourth sending module configured to send the third type of signaling to the second communications node.
- the second type of reference signal further includes one of the following:
- mapping information of the data channel RE mapping information of the control channel RE, demodulation reference signal DMRS port information, DMRS port group information, CSI-RS reference signal configuration information, downlink shared channel resource mapping, and PQI information.
- the device may further include:
- a fourth generation module configured to generate a fourth type of signaling, where the fourth type of signaling indicates an index element in the second type of parameter set, or an activated or selected one of the second type of parameter set a subset of a set of parameters, or a subset of the first set of parameters, or an index element of the first set of parameters, for demodulation and/or demodulation of data or control channels associated with the fourth type of signaling Beam indication
- a fifth sending module configured to send the fourth type of signaling to the second communications node.
- the second type of reference signal comprises U second type reference signal subsets, wherein each second type of reference signal subset satisfies a channel characteristic hypothesis; an index in the first type of parameter set
- the number of elements, the index element in the second type of parameter set, or the index element in the third type parameter set subset is T, where U and T are integers greater than or equal to 1, and the channel characteristic hypothesis includes one of the following: Quasi-co-location QCL hypothesis, spatial QCL hypothesis, meeting spatial reception parameter requirements.
- the second type of reference signal subset, or the second type of reference signal element can only be mapped with one index element.
- mapping rule comprises at least one of the following:
- mapping relationship is from the first communication node configuration or a predefined mapping relationship set
- U subsets of the second type of reference signals are sequentially mapped with T index elements or subsets;
- V is 1, or a positive number greater than 1 or less than 1, if the cumulative step is a non-integer, rounded.
- V T / U, or V is specified by the first communication node.
- the second type of reference signal includes at least one of the following: UL DMRS, DL DMRS, CSI-RS, SRS, TRS.
- the second type of reference signal corresponds to an index element in the first type parameter set or an index element in the second type parameter set or the third type parameter set subset.
- the reference signal satisfies a channel characteristic hypothesis, wherein the channel characteristic hypothesis includes one of the following: a QCL hypothesis, a spatial QCL hypothesis, and a spatial reception parameter requirement.
- the signaling of the second type of parameter set is sent to the valid or the signaling of the third type of parameter set is sent to the active Y time unit or X time windows, wherein the time unit Is an OFDM symbol, slot or subframe.
- the device may further include:
- a third sending module configured to: after activating or selecting an index element in the first type parameter set, or adding an index element to the second type parameter set, sending a third class that satisfies a channel feature hypothesis with the element
- the reference signal, the channel characteristic hypothesis includes one of the following: a QCL hypothesis, a spatial QCL hypothesis, and a spatial reception parameter requirement.
- the third sending module is configured as the third type reference signal, when an index element in the first type parameter set is activated or selected, or an index element is added to a second type parameter set.
- the transmission is sent on a periodic or semi-persistent transmission window, where X is an integer greater than or equal to 0, and the time unit is OFDM Symbol, slot or sub-frame.
- the third type of reference signal comprises at least one of the following:
- the embodiment of the present disclosure further provides a configuration apparatus for a reference signal, which is applied to the second communication node, and includes:
- the first receiving module is configured to receive the first type of signaling sent by the first communications node
- a processing module configured to determine, according to the first type of signaling, a first type of parameter set of the configured first type of reference signal index, where the first type of parameter set includes N index elements, where N is greater than or An integer equal to 1.
- the device may further include:
- a second receiving module configured to receive the second type of signaling sent by the first communications node
- the processing module is configured to: activate or deactivate an index element in the first type parameter set or a subset of the first type parameter set according to the second type signaling selection, and select or activate K indexes
- the element or a subset of the first set of parameter sets constitutes a second set of parameters, K being an integer greater than or equal to one.
- the device may further include:
- a third receiving module configured to receive the third type of signaling sent by the first communications node
- the processing module is configured to determine, according to the third type of signaling, an index element in the first type parameter set, or an index element in the second type parameter set or a third type parameter set subset, and the The second type of reference signals are mapped and associated.
- the device may further include:
- a fourth receiving module configured to receive the fourth type of signaling sent by the first communications node
- the processing module is configured to determine, according to the fourth type of signaling, an index element in the second type parameter set, or a subset of the first type parameter set activated or selected in the second type parameter set, or A subset of the first set of parameter sets, or an index element of the first set of parameter sets, is used for demodulation and/or beam indication of data or control channels associated with the fourth type of signaling.
- each of the above modules may be implemented by software or hardware.
- the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
- the forms are located in different processors.
- Embodiments of the present disclosure also provide a storage medium including a stored program, wherein the program runs to execute the method of any one of the first communication node or the second communication node.
- the foregoing storage medium may be configured to store program code for performing the following steps:
- S11 configured to configure a first type of parameter set of the first type of reference signal index, where the first type of parameter set includes N index elements, and N is an integer greater than or equal to 1;
- S12 Generate a first type of signaling according to the first type of parameter set, where the first type of signaling carries the first type of parameter set;
- the foregoing storage medium may be configured to store program code for performing the following steps:
- the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
- ROM Read-Only Memory
- RAM Random Access Memory
- Embodiments of the present disclosure also provide a processor configured to execute a program, wherein the program, when executed, performs the steps of any of the above methods.
- the foregoing program is used to perform the following steps:
- S21 configured to configure a first type of parameter index of the first type of reference signal index, where the first type of parameter set includes N index elements, where N is an integer greater than or equal to 1;
- S22 Generate a first type of signaling according to the first type of parameter set, where the first type of signaling carries the first type of parameter set;
- the foregoing program is used to perform the following steps:
- S42 Determine, according to the first type of signaling, a first type of parameter set of the configured first type of reference signal index, where the first type of parameter set includes N index elements, where N is greater than or equal to 1. Integer.
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Abstract
Description
Claims (34)
- 一种参考信号的配置方法,应用于第一通信节点,包括:配置第一类参考信号索引的第一类参数集合,其中,所述第一类参数集合内包括N个索引元素,N为大于或等于1的整数;根据所述第一类参数集合生成第一类信令,其中,所述第一类信令携带所述第一类参数集合;向第二通信节点发送所述第一类信令。
- 根据权利要求1所述的方法,其中,所述第一类参数集合至少包括以下参数之一:数据信道资源元素RE的映射信息,控制信道RE的映射信息,解调参考信号DMRS端口的准共址QCL信息;解调参考信号端口组的QCL信息;信道状态信息参考信号CSI-RS参考信号配置信息。
- 根据权利要求1所述的方法,其中,所述第一类参数集合中包含F个第一类参数集合的子集,每个子集中包含G个索引元素,其中,F和G是大于或等于1的整数。
- 根据权利要求3所述的方法,其中,所述G个索引元素中所述第一类参数集合的子集所包含的参考信号与所述索引元素之一关联:其中,所述关联指的是所述第一类参数集合的子集所包含的参考信号与所述索引元素对应的参考信号,满足信道特征假设,其中,所述信道特征假设包括以下之一:QCL假设、空间QCL假设、满足空间接收参数要求。
- 根据权利要求1所述的方法,其中,所述索引元素至少包括如下配置信息之一:索引元素序号、参考信号类型索引、参考信号资源配置索引、参考信号资源集合索引、参考信号资源索引、参考信号端口索引、资源块索引、资源块突发索引、资源块突发集合索引、测量限制窗口索引、时域窗索引、报告配置索引、波束分组索引、测量约束、配置约束和时间约束。
- 根据权利要求1所述的方法,其中,在向所述第二通信节点发送所述第一类信令时,所述第一类参考信号为已配置、已测量或已报告的参考信号。
- 根据权利要求1所述的方法,其中,所述第一类参考信号包括以下至少之一:同步信号块SS block、信道状态信息参考信号CSI-RS、信道探测参考信号SRS、物理随机接入信道信号PRACH、解调参考信号DMRS。
- 根据权利要求1至7任一项所述的方法,其中,所述方法还包括:更新所述第一类参数集合中的部分的索引元素,或者部分第一类参考信号集合的子集;或者,删除所述第一类参数集合中的部分的索引元素,或者部分第一类参考信号集合的子集;或者,新增索引元素到所述第一类参数集合。
- 根据权利要求1至7任一项所述的方法,其中,所述方法还包括:若所述第一类参数集合中已配置的索引元素序号,与所述信令指示的索引元素序号一致时,根据所述信令指示,更新或者配置已配置的索引元素序号下的内容为所述信令承载的内容。
- 根据权利要求8所述的方法,其中,支持所述第一类参考信号索引的最大数目为大于或等于N。
- 根据权利要求1所述的方法,其中,所述方法还包括:生成第二类信令,其中,所述第二类信令用于选择,激活或去激活所述第一类参数集合中的索引元素或者第一类参数集合的子集,所选择或激活的K个索引元素或者所述第一类参数集合的子集构成第二类参数集合,K为大于或等于1的整数;向所述第二通信节点发送所述第二类信令。
- 根据权利要求11所述的方法,其中,所述方法还包括:添加索引元素到所述第二类参数集合;或者从所述第二类参数集合中,删除不属于所述第一类参数集合的索引元素。
- 根据权利要求1、11或12所述的方法,其中,所述方法还包括:从所述第二类参数集合和所述第一类参数集合中至少之一中,选择索 引元素,构成第三类参数集合,其中,所述第三类参数集合包含R个第三类参数集合子集,所述第三类参数集合子集包含hi个索引元素,R和hi是大于或等于1的整数。
- 根据权利要求1至7、10至12任一项所述的方法,其中,所述方法还包括:生成第三类信令,其中,所述第三类信令用于指示所述第一类参数集合中的索引元素,或第二类参数集合中的索引元素或第三类参数集合子集,与所述第二类参考信号映射并且关联;向所述第二通信节点发送所述第三类信令。
- 根据权14所述的方法,其中,所述第二类参考信号还包括以下之一:数据信道资源元素RE的映射信息,控制信道资源元素RE的映射信息,解调参考信号DMRS端口信息,解调参考信号端口组信息,信道状态信息参考信CSI-RS参考信号配置信息,下行共享信道资源映射和准共址PQI信息。
- 根据权1、11或12所述的方法,其中,所述方法还包括:生成第四类信令,其中,所述第四类信令指示第二类参数集合中的索引元素,或者第二类参数集合中被激活或被选择的第一类参数集合的子集,或者第一类参数集合的子集,或者第一类参数集合的索引元素,用于所述第四类信令所关联的数据或者控制信道的解调和/或波束指示;向所述第二通信节点发送所述第四类信令。
- 根据权利要求14所述的方法,其中,所述方法还包括:所述第二类参考信号包括U个第二类参考信号子集,其中,每个第二类参考信号子集满足信道特征假设;所述的第一类参数集合中的索引元素,第二类参数集合中的索引元素或者第三类参数集合子集中的索引元素的数目是T,其中,U和T是大于或等于1的整数,所述信道特征假设包括以下之一:准共址QCL假设、空间QCL假设、满足空间接收参数要求。
- 根据权利要求17所述的方法,其中,所述第二类参考信号子集, 或者所述第二类参考信号元素,仅能与一个索引元素映射。
- 根据权利要求14所述的方法,其中,所述映射规则包括以下至少之一:指定映射关系,其中,所述映射关系来自所述第一通信节点配置或者预定义的映射关系集合;按序号从低到高的顺序或者从高到底的顺序,规定U个第二类参考信号子集,依次与以V为步进的T个索引元素或者子集映射;按照预定义的映射图谱,U个第二类参考信号子集,依次与T个索引元素或者子集映射;其中V为1,或者,大于1或者小于1的正数,若累计步进为非整数时,取整。
- 根据权利要求19所述的方法,其中,V=T/U,或者V是由所述第一通信节点指定的。
- 根据权利要求14所述的方法,其中,所述第二类参考信号至少包括以下之一:上行解调参考信号UL DMRS、下行解调参考信号DL DMRS、信道状态信息参考信号CSI-RS、探测参考信号SRS、追踪参考信号TRS。
- 根据权利要求14所述的方法,其中,所述第二类参考信号,与所述第一类参数集合中的索引元素或者所述第二类参数集合中的索引元素或者所述第三类参数集合子集所对应的参考信号,满足信道特征假设,其中,所述信道特征假设包括以下之一:QCL假设、空间QCL假设、满足空间接收参数要求。
- 根据权利要求22所述的方法,其中,所述方法还包括:所述第二类参数集合的信令发送到生效或者所述第三类参数集合的信令发送到生效需要Y个时间单元或X个时间窗口,其中,所述时间单元是正交频分复用技术OFDM符号,时隙slot或者子帧。
- 根据权利要求13所述的方法,其中,所述方法还包括:在激活或者选择的所述第一类参数集合中的索引元素,或者添加索引 元素到所述第二类参数集合后,发送与所述元素满足信道特征假设的第三类参考信号,所述信道特征假设包括以下之一:QCL假设、空间QCL假设、满足空间接收参数要求。
- 根据权利要求24所述的方法,其中,所述方法还包括:所述第三类参考信号,在激活或者选择所述第一类参数集合中的索引元素,或者添加索引元素到第二类参数集合时,X个时间单元后或者第二通信节点回复确认后的X个时间单元后,发送、在周期或半持续发送窗口上发送,其中,X是大于或等于0的整数,所述时间单元是正交频分复用OFDM符号,时隙slot或者子帧。
- 根据权利要求24所述的方法,其中,所述第三类参考信号包括以下至少之一:信道状态信息参考信号CSI-RS,追踪参考信号TRS。
- 一种参考信号的配置装置,应用于第一通信节点,包括:第一配置模块,配置为配置第一类参考信号索引的第一类参数集合,其中,所述第一类参数集合内包括N个索引元素,N为大于或等于1的整数;第一生成模块,配置为根据所述第一类参数集合生成第一类信令,其中,所述第一类信令携带所述第一类参数集合;第一发送模块,配置为向第二通信节点发送所述第一类信令。
- 一种参考信号的配置方法,应用第二通信节点,包括:接收第一通信节点发送的第一类信令;根据所述第一类信令,确定配置的第一类参考信号索引的第一类参数集合,其中,所述第一类参数集合内包括N个索引元素,N为大于或等于1的整数。
- 根据权利要求28所述的方法,其中,所述方法还包括:接收所述第一通信节点发送的第二类信令;根据所述第二类信令选择,激活或去激活所述第一类参数集合中的索 引元素或者第一类参数集合的子集,所选择或激活的K个索引元素或者所述第一类参数集合的子集构成第二类参数集合,K为大于或等于1的整数。
- 根据权利要求28所述的方法,其中,所述方法还包括:接收所述第一通信节点发送的第三类信令;根据所述第三类信令确定所述第一类参数集合中的索引元素,或第二类参数集合中的索引元素或第三类参数集合子集,与所述第二类参考信号映射并且关联。
- 根据权利要求28所述的方法,其中,所述方法还包括:接收所述第一通信节点发送的第四类信令;根据所述第四类信令,确定第二类参数集合中的索引元素,或者第二类参数集合中被激活或被选择的第一类参数集合的子集,或者第一类参数集合的子集,或者第一类参数集合的索引元素,用于所述第四类信令所关联的数据或者控制信道的解调和/或波束指示。
- 一种参考信号的配置装置,应用于第二通信节点,包括:第一接收模块,配置为接收第一通信节点发送的第一类信令;处理模块,配置为根据所述第一类信令,确定配置的第一类参考信号索引的第一类参数集合,其中,所述第一类参数集合内包括N个索引元素,N为大于或等于1的整数。
- 一种存储介质,所述存储介质包括存储的程序,其中,所述程序运行时执行权利要求1至26任一项所述的方法,或者执行权利要求28至31任一项所述的方法。
- 一种处理器,所述处理器配置为运行程序,其中,所述程序运行时执行权利要求1至26任一项所述的方法,或者执行权利要求28至31任一项所述的方法。
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