CN117938333A - Method and apparatus in a node for wireless communication - Google Patents
Method and apparatus in a node for wireless communication Download PDFInfo
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Abstract
A method and apparatus in a node for wireless communication is disclosed. The first node receives the first information block and the second information block and receives the first wireless signal in the first time-frequency resource set; the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising a plurality of transmission configuration parameters; the plurality of transmission configuration parameters are used to determine a plurality of reference signals, respectively, a first reference signal being one of the plurality of reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the plurality of reference signals, and the first type of relation and the second type of relation are different; a first time threshold is used to determine the first reference signal. By the method, the Doppler frequency shift resistance performance under the scene of multiple transmitting and receiving nodes can be enhanced.
Description
The application is a divisional application of the following original application:
Filing date of the original application: 2020, 10 months and 14 days
Number of the original application: 202011098573.4
-The name of the invention of the original application: method and apparatus in a node for wireless communication
Technical Field
The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network.
Background
Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet the different performance requirements of various application scenarios, a New air interface technology (NR) is decided to be researched in 3GPP (3 rd GenerationPartnerProject, third Generation partnership project) RAN (Radio Access Network ) #72 full-time, and a standardization Work for NR is started in 3GPP RAN #75 full-time with NR's WI (Work Item).
The multi-antenna technology is a key technology in 3GPP (3 rd Generation Partner Project, third generation partnership project) LTE (Long-termEvolution, long term evolution) systems and NR (NewRadio ) systems. Additional spatial freedom is obtained by configuring multiple antennas at a communication node, such as a base station or UE (User Equipment). The multiple antennas are formed by beam forming, and the formed beams point to a specific direction to improve the communication quality. When a plurality of antennas belong to a plurality of TRP (TRANSMITTER RECEIVERPOINT, transmitting/receiving node)/panel (antenna panel), an additional diversity gain can be obtained by using the spatial difference between different TRP/panels. The beams formed by multi-antenna beamforming are generally relatively narrow, and the beams of both communicating parties need to be aligned for effective communication. When the transmission/reception beams are out of step due to the movement of the UE, etc., the communication quality is greatly reduced or even impossible, so that the beams need to be updated in time.
Disclosure of Invention
WI (Work Item) of NRR (release) 17 is passed through 3gpp ran (RadioAccess Network ) #86 full-shots, including enhanced multi-TRP transmission to support HST (HIGH SPEEDTRAIN ) -SFN (Single Frequency Network, single frequency network) scenarios. The inventor finds through research that in the HST-SFN scenario, the main challenges encountered by signal transmission include the effect of doppler shift on receiver performance due to high-speed mobility. Also, since the directions of the different TRPs with respect to the UE are different, doppler shifts generated at the UE receiver by signals transmitted from the different TRPs are different, and the UE receiver will receive multiple copies of signals having different center frequency points, which makes reception of signals difficult.
In view of the above, the present application discloses a solution. It should be noted that, although the above description uses beamforming and HST-SFN scenarios as examples, the present application is also applicable to other scenarios such as LTE multi-antenna systems, medium-low speed mobile scenarios, and achieves technical effects similar to those in beamforming and HST-SFN scenarios. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to beamforming, HST-SFN scenarios, LTE multi-antenna systems and medium and low speed mobile scenarios) also helps to reduce hardware complexity and cost. Embodiments of the application and features in embodiments may be applied to any other node and vice versa without conflict. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
As an embodiment, the term (Terminology) in the present application is explained with reference to the definition of the 3GPP specification protocol TS36 series.
As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS38 series.
As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS37 series.
As one example, the term in the present application is explained with reference to the definition of the specification protocol of IEEE (Institute ofElectrical andElectronics Engineers ).
The application discloses a method used in a first node of wireless communication, which is characterized by comprising the following steps:
receiving a first information block and a second information block;
receiving a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As one embodiment, the features of the above method include: the first wireless signal is transmitted by Q1 TRP in an SFN mode, and the Q1 transmission configuration parameters are respectively used by the Q1 TRP for transmitting the first wireless signal; the Q1 reference signals are tracking reference signals (TRACKINGREFERENCE SIGNAL, TRS) transmitted by the Q1 TRP, respectively; the first class of relationships includes quasi co-location relationships of Doppler shifts and the second class of relationships does not include quasi co-location relationships of multi-spectral shifts.
As one embodiment, the features of the above method include: the first reference signal is not subjected to doppler shift pre-compensation, and any reference signal other than the first reference signal in the Q1 reference signals is subjected to doppler pre-compensation, wherein the purpose of the doppler pre-compensation is to make the center frequencies of the Q1 first wireless signals respectively transmitted by the Q1 TRP identical at the receiver of the first node.
As one embodiment, the features of the above method include: the first reference signal is used to determine a reception frequency, and any reference signal other than the first reference signal of the Q1 reference signals is not used to determine a reception frequency.
As one embodiment, the features of the above method include: the Q1 transmission configuration parameters are associated to Q1 transmit beams, respectively.
As one embodiment, the features of the above method include: the Q1 transmission configuration parameters are respectively associated to Q1 TRP.
As one example, the benefits of the above method include: when the first wireless signal is sent by Q1 TRPs in an SFN mode, one TRP of the Q1 TRPs is used as an anchor point of a receiving frequency, and other TRPs respectively conduct Doppler shift pre-compensation according to Doppler shift associated with the TRP, so that center frequency points of the Q1 first wireless signals respectively sent by the Q1 TRPs at a receiver of the first node are aligned, and the receiver performance of an HST-SFN scene is facilitated.
As one example, the benefits of the above method include: the first node determines a receiving frequency according to the first reference signal, the receiving frequency is irrelevant to other reference signals except the first reference signal in the Q1 reference signals, a receiver does not need to process receiving signals with different center frequencies from different TRPs, and the complexity of the receiver is low.
According to one aspect of the present application, the above method is characterized in that, when the first time length is smaller than the first time threshold, the first reference signal is a reference signal determined by a transmission configuration parameter with the smallest number among the Q1 transmission configuration parameters.
As one embodiment, the features of the above method include: the first time threshold is a minimum time interval between the first node receiving the second information block and being able to apply the transmission configuration parameters comprised by the second information block.
As one embodiment, the features of the above method include: the first time threshold is a minimum time interval between the first node receiving the second information block and being able to apply the first type of relation indicated by the transmission configuration parameters comprised by the second information block.
As one example, the benefits of the above method include: when the first time length is insufficient to apply the transmission configuration parameters included in the second information block, selecting a reference signal determined by a transmission configuration parameter with the smallest number in the Q1 transmission configuration parameters according to a default rule for determining a receiving frequency, thereby avoiding the situation that the receiving frequency cannot be determined.
According to one aspect of the present application, the method is characterized by comprising:
a second wireless signal is received, the second wireless signal being transmitted beginning before a start time of the first set of time-frequency resources.
Wherein Q2 transmission configuration parameters are commonly used for reception of the second wireless signal, the Q2 being a positive integer greater than 1; the Q2 transmission configuration parameters are used to determine Q2 reference signals, respectively, a second reference signal being one of the Q2 reference signals; the second wireless signal and the second reference signal have a first type of relationship; when the first time length is less than the first time threshold, a number of transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is used to determine the first reference signal from the Q1 reference signals.
As one embodiment, the features of the above method include: the second wireless signal is the last wireless signal transmitted in SFN before the first wireless signal.
As one example, the benefits of the above method include: when the first time length is insufficient to apply the transmission configuration parameters included in the second information block, the first node determines the first reference signal according to the number of the reference signal used for determining the receiving frequency by the last radio signal sent in the SFN mode before the first radio signal, which can reflect the latest channel state on the one hand, and can avoid the reconfiguration of the receiving frequency due to the configuration of the second radio signal on the other hand, thereby reducing the requirement on hardware.
According to an aspect of the present application, the above method is characterized in that the second information block comprises first indication information, which is used for determining the first reference signal from the Q1 reference signals when the first time length is not smaller than the first time threshold.
As one embodiment, the features of the above method include: the first reference signal is indicated by first indication information included in the second information block when the first time length is sufficient to apply the transmission configuration parameters included in the second information block.
As one example, the benefits of the above method include: the first reference signal is indicated from the Q1 reference signals by adopting dynamic signaling, and the network equipment can select any one reference signal from the Q1 reference signals as the first reference signal according to the current channel characteristics, so that the scheduling freedom degree of the network equipment is improved, and the system performance is improved.
According to one aspect of the present application, the above method is characterized in that the first type of relationship includes a doppler shift quasi co-location relationship; the second class of relationships does not include Doppler shift quasi co-location relationships.
According to an aspect of the present application, the above method is characterized in that the first information block is used to determine Q3 transmission configuration parameter sets, any one of the Q3 transmission configuration parameter sets includes Q4 transmission configuration parameters, Q3 is a positive integer greater than 1, and Q4 is a positive integer; when the first time length is less than the first time threshold, the first transmission configuration parameter set is a transmission configuration parameter set with the smallest number including Q1 transmission configuration parameters in the Q3 transmission configuration parameter sets.
According to an aspect of the present application, the above method is characterized in that the first reference signal is used for determining a receiving frequency for receiving the first wireless signal, and none of the Q1 reference signals other than the first reference signal is used for determining a receiving frequency for receiving the first wireless signal.
The application discloses a method used in a second node of wireless communication, which is characterized by comprising the following steps:
Transmitting the first information block and the second information block;
Transmitting a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
According to one aspect of the present application, the above method is characterized in that, when the first time length is smaller than the first time threshold, the first reference signal is a reference signal determined by a transmission configuration parameter with the smallest number among the Q1 transmission configuration parameters.
According to one aspect of the present application, the method is characterized by comprising:
A second wireless signal is transmitted, the second wireless signal being transmitted beginning before a start time of the first set of time-frequency resources.
Wherein Q2 transmission configuration parameters are commonly used for reception of the second wireless signal, the Q2 being a positive integer greater than 1; the Q2 transmission configuration parameters are used to determine Q2 reference signals, respectively, a second reference signal being one of the Q2 reference signals; the second wireless signal and the second reference signal have a first type of relationship; when the first time length is less than the first time threshold, a number of transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is used to determine the first reference signal from the Q1 reference signals.
According to an aspect of the present application, the above method is characterized in that the second information block comprises first indication information, which is used for determining the first reference signal from the Q1 reference signals when the first time length is not smaller than the first time threshold.
According to one aspect of the present application, the above method is characterized in that the first type of relationship includes a doppler shift quasi co-location relationship; the second class of relationships does not include Doppler shift quasi co-location relationships.
According to an aspect of the present application, the above method is characterized in that the first information block is used to determine Q3 transmission configuration parameter sets, any one of the Q3 transmission configuration parameter sets includes Q4 transmission configuration parameters, Q3 is a positive integer greater than 1, and Q4 is a positive integer; when the first time length is less than the first time threshold, the first transmission configuration parameter set is a transmission configuration parameter set with the smallest number including Q1 transmission configuration parameters in the Q3 transmission configuration parameter sets.
According to an aspect of the present application, the above method is characterized in that the first reference signal is used for determining a receiving frequency for receiving the first wireless signal, and none of the Q1 reference signals other than the first reference signal is used for determining a receiving frequency for receiving the first wireless signal.
The application discloses a first node used for wireless communication, which is characterized by comprising the following components:
A first receiver that receives a first information block and a second information block;
The first receiver receiving a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
The present application discloses a second node used for wireless communication, which is characterized by comprising:
A first transmitter that transmits a first information block and a second information block;
the first transmitter transmitting a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As one embodiment, the present application has the following advantages:
When the SFN mode is adopted to transmit wireless signals from a plurality of TRPs to the UE, supporting to dynamically select one TRP from the plurality of TRPs as an anchor point of receiving frequency, and performing Doppler precompensation on the wireless signals transmitted by other TRPs, so that the wireless signals transmitted by the plurality of TRPs can be aligned to the same frequency at a receiver of the UE, thereby being beneficial to resisting Doppler frequency shift and improving the performance of the receiver;
-when the time interval between PDSCH in SFN and PDCCH scheduling the PDSCH is insufficient for the UE to apply the transmission configuration parameters indicated by the PDCCH, the UE selects, by default, the TRS associated with the transmission configuration parameter with the smallest number from among the plurality of transmission configuration parameters included in the transmission configuration parameter set for determining the reception frequency, avoiding uncertainty of the reception frequency due to processing delay;
-when the time interval between the PDSCH in SFN and the PDCCH scheduling the PDSCH is insufficient for the UE to apply the transmission configuration parameters indicated by the PDCCH, the UE selects one TRS from the TRSs of the plurality of TRPs for determining the reception frequency according to the configuration of the PDSCH based on the SFN transmission last time most recently, which can better reflect the current state of the channel due to the continuity of the channel variation;
when the time interval between the PDSCH in SFN mode and the PDCCH for scheduling the PDSCH is enough for the UE to apply the transmission configuration parameters indicated by the PDCCH, the UE selects one TRS from the TRSs of the plurality of TRPs for determining the receiving frequency according to the indication of dynamic signaling, which can improve the flexibility of base station scheduling and improve the system performance.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:
FIG. 1 illustrates a process flow diagram of a first node of one embodiment of the application;
FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the application;
fig. 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the application;
FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the application;
fig. 5 shows a wireless signal transmission flow diagram according to one embodiment of the application;
Figure 6 shows a schematic diagram of SFN transmission according to one embodiment of the application;
Fig. 7 shows a schematic diagram of signal transmission in an HST-SFN scenario according to an embodiment of the present application;
fig. 8 shows a schematic diagram of doppler shift precompensation in an SFN scenario according to an embodiment of the present application;
fig. 9 shows a schematic diagram of a time relation between a second information block and a first wireless signal according to an embodiment of the application;
fig. 10 shows a schematic diagram of a time relationship between a second wireless signal, a second information block and a first wireless signal according to an embodiment of the application;
Fig. 11 is a schematic diagram showing a plurality of transmission configuration parameter sets and transmission configuration parameters respectively included in the plurality of transmission configuration parameter sets according to an embodiment of the present application;
FIG. 12 shows a block diagram of a processing device for use in a first node;
fig. 13 shows a block diagram of a processing means for use in the second node.
Detailed Description
The technical scheme of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.
Example 1
Embodiment 1 illustrates a process flow diagram of a first node of one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step. In particular, the order of steps in the blocks does not represent a particular chronological relationship between the individual steps. In embodiment 1, a first node in the present application receives a first information block and a second information block in step 101, and receives a first wireless signal in a first set of time-frequency resources in step 102. Wherein the second information block is used to indicate the first set of time-frequency resources, the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters includes Q1 transmission configuration parameters, the Q1 transmission configuration parameters are used together for reception of the first wireless signal, the Q1 is a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As one embodiment, the first wireless signal comprises a baseband signal.
As one embodiment, the first wireless signal comprises a wireless signal.
As one embodiment, the first wireless signal is transmitted over a sidelink (SideLink).
As one embodiment, the first wireless signal is transmitted on an UpLink (UpLink).
As one embodiment, the first wireless signal is transmitted on the DownLink (DownLink).
As an embodiment, the first wireless signal is transmitted over a Backhaul link (Backhaul).
As an embodiment, the first wireless signal is transmitted over a Uu interface.
As an embodiment, the first wireless signal is transmitted through a PC5 interface.
As an embodiment, the first radio signal carries a TB (transport block).
As an embodiment, the first radio signal carries a CB (Code Block).
As an embodiment, the first radio signal carries a CBG (Code Block Group).
As an embodiment, the first wireless signal includes control information.
As an embodiment, the first radio signal includes SCI (Sidelink Control Information ).
As an embodiment, the first wireless signal comprises one or more domains in one SCI.
As an embodiment, the first radio signal comprises one or more fields in a SCI format.
As an embodiment, the first radio signal includes UCI (Uplink Control Information ).
As an embodiment, the first wireless signal includes one or more domains in a UCI.
As an embodiment, the first wireless signal includes one or more fields in a UCI format.
As an embodiment, the first radio signal includes DCI (Downlink Control Information ).
As one embodiment, the first wireless signal includes one or more fields in one DCI.
As an embodiment, the first radio signal includes one or more fields in one DCI format.
As one embodiment, the first wireless signal includes a physical uplink shared channel (PhysicalUplink SHARED CHANNEL, PUSCH).
As an embodiment, the first wireless signal includes a physical uplink control channel (Physical UplinkControl Channel, PUCCH).
As one embodiment, the first wireless signal includes a physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH).
As an embodiment, the first wireless signal comprises a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
As an embodiment, the first radio signal comprises a Physical Sidelink Control Channel (PSCCH).
As one embodiment, the first wireless signal includes a physical sidelink shared channel (PHYSICAL SIDELINK SHARED CHANNEL, PSSCH).
As an embodiment, the first wireless signal comprises a physical sidelink Feedback Channel (PHYSICAL SIDELINK Feedback Channel, PSFCH).
As one embodiment, the first wireless signal is transmitted in a licensed spectrum.
As one embodiment, the first wireless signal is transmitted in an unlicensed spectrum.
As one embodiment, the first wireless signal comprises a reference signal.
As an embodiment, the first radio signal includes an uplink reference signal.
As an embodiment, the first radio signal includes a downlink reference signal.
As one embodiment, the first wireless signal comprises a sidelink reference signal.
As one embodiment, the first wireless signal includes a Demodulation reference signal (DMRS, demodulation REFERENCE SIGNAL).
As an embodiment, the first radio signal comprises a channel state Information reference signal (CSI-RS, channel State Information REFERENCE SIGNAL).
As one embodiment, the first wireless signal includes a phase tracking reference signal (PTRS, phase Tracking Reference Signal).
As one embodiment, the first wireless signal includes a tracking reference signal (TRS, tracking Reference Signal).
As one embodiment, the first wireless signal includes a Positioning Reference Signal (PRS) REFERENCE SIGNAL.
As an embodiment, the first wireless signal includes a Sounding reference signal (SRS REFERENCE SIGNAL).
As an embodiment, the first radio signal includes an uplink signal Configured with a Grant (Configured Grant).
As an embodiment, the first wireless signal comprises a dynamically scheduled uplink signal.
As an embodiment, the first radio signal includes a semi-statically scheduled uplink signal.
As an embodiment, the first radio signal comprises a PUSCH (CG-PUSCH, configuredGrantPUSCH) configured with a grant.
As an embodiment, the first wireless signal includes a dynamically scheduled PUSCH.
As an embodiment, the first radio signal comprises a semi-statically scheduled PUSCH.
As an embodiment, the first wireless signal comprises PDCCH (Group Common PDCCH) which is common to the group.
As one embodiment, the first wireless signal is transmitted in an SFN.
As one embodiment, the first wireless signal is transmitted by Q1 TRP.
As one embodiment, the first wireless signal is transmitted by Q1 TRP in the first set of time frequency resources.
As one embodiment, the first wireless signal is transmitted by Q1 transmit beams in the first set of time-frequency resources.
As one embodiment, the first wireless signal is transmitted by the Q1 transmission configuration parameters in the first set of time-frequency resources.
As one embodiment, the first wireless signals respectively transmitted by the Q1 TRP are the same.
As an embodiment, the Q1 transmission configuration parameters are the same as the first wireless signals respectively transmitted.
As an embodiment, the first wireless signal includes a first transport block and a first type of reference signal, the first transport blocks included in the first wireless signals respectively sent by any 2 of the Q1 transport configuration parameters are the same, and the first type of reference signals included in the first wireless signals respectively sent by any 2 of the Q1 transport configuration parameters are different.
As a sub-embodiment of the above embodiment, the first type of reference signals respectively included in the first wireless signals respectively transmitted by any 2 transmission configuration parameters of the Q1 transmission configuration parameters are orthogonal.
As a sub-embodiment of the above embodiment, the first transport block includes a PDSCH.
As a sub-embodiment of the above embodiment, the first transport block includes a PDCCH.
As a sub-embodiment of the above embodiment, the first transport block includes PUSCH.
As a sub-embodiment of the above embodiment, the first transport block includes a PUCCH.
As a sub-embodiment of the above embodiment, the first transport block comprises a PSCCH.
As a sub-embodiment of the above embodiment, the first transport block includes a PSSCH.
As a sub-embodiment of the above embodiment, the first type of reference signal includes DMRS.
As a sub-embodiment of the above embodiment, the first type of reference signal includes CSI-RS.
As a sub-embodiment of the above embodiment, the first type of reference signal includes TRS.
As a sub-embodiment of the above embodiment, the first type of reference signal comprises PTRS.
As an embodiment, any of the Q1 transmission configuration parameters includes a spatial domain filter (spatial domain filter).
As an embodiment, any one of the Q1 transmission configuration parameters includes TCI (transmission configureation indicator).
As one embodiment, any of the Q1 transmission configuration parameters includes a TCI state (TCI state).
As an embodiment, any of the Q1 transmission configuration parameters includes a TCI code point (TCI Codepoint).
As an embodiment, the first set of transmission configuration parameters includes a TCI code point (TCI Codepoint).
As an embodiment, any of the Q1 transmission configuration parameters includes a spatial correlation (Spatial Relation) parameter.
As an embodiment, any one of the Q1 transmission configuration parameters includes a QCL (Quasi co-located, quasi-CoLocation) parameter.
As an embodiment, any one of the Q1 transmission configuration parameters is used to determine the transmit beam.
As an embodiment, any one of the Q1 transmission configuration parameters is used to determine the receive beam.
As an embodiment, any one of the Q1 transmission configuration parameters is used to determine a spatial transmit filter.
As an embodiment, any one of the Q1 transmission configuration parameters is used to determine a spatial reception filter.
As an embodiment, any one of the Q1 transmission configuration parameters is used to determine a spatial correlation (Spatial Relation) with a reference signal.
As an embodiment, any one of the Q1 transmission configuration parameters is used to determine the QCL relationship with a reference signal.
As a sub-embodiment of the above embodiment, the one reference signal includes one of { SSB, CSI-RS, TRS, SRS, PTRS, DMRS }.
As one embodiment, the QCL parameters include QCL type.
As an embodiment, the QCL parameter includes a QCL association relation with another signal.
As an embodiment, the QCL parameter comprises a spatial correlation (SpatialRelation) with another signal.
For a specific definition of QCL, see section 5.1.5 in 3gpp ts38.214, as an example.
As an embodiment, the QCL association of one signal with another signal refers to: all or part of large-scale (properties) of the wireless signal transmitted on the antenna port corresponding to the one signal can be deduced from all or part of large-scale (properties) of the wireless signal transmitted on the antenna port corresponding to the other signal.
For one embodiment, the large scale characteristics of a wireless signal include one or more of { delay spread (DELAY SPREAD), doppler spread (Doppler spread), doppler shift (Doppler shift), path loss (path loss), average gain (AVERAGE GAIN), average delay (AVERAGE DELAY), spatial reception parameters (Spatial Rxparameters) }.
As one example, the spatial reception parameters (Spatial Rxparameters) include one or more of { receive beams, receive analog beamforming matrices, receive analog beamforming vectors, receive spatial filtering (SPATIAL FILTER), spatial receive filtering (spatial domain reception filter) }.
As an embodiment, the QCL association of one signal with another signal refers to: the one signal and the other signal have at least one identical QCL parameter (QCLPARAMETER).
As one embodiment, the QCL parameters include: { delay spread (DELAY SPREAD), doppler spread (Doppler shift), doppler shift (Doppler shift), path loss (path loss), average gain (AVERAGE GAIN), average delay (AVERAGE DELAY), spatial reception parameter (Spatial Rxparameters) }.
As an embodiment, the QCL association of one signal with another signal refers to: at least one QCL parameter of the one signal can be inferred from at least one QCL parameter of the other signal.
As one example, QCL type (QCL type) between one signal and another signal is QCL type D (QCL-TypeD) refers to: the spatial reception parameters (Spatial Rxparameters) of the wireless signals transmitted on the antenna ports corresponding to the one signal can be deduced from the spatial reception parameters (SpatialRxparameters) of the wireless signals transmitted on the antenna ports corresponding to the other signal.
As one example, the QCL type between one signal and another signal is QCL type a (QCL-type a) refers to: from { delay spread (DELAY SPREAD), doppler spread (Doppler spread), doppler shift (Doppler shift), average delay (AVERAGE DELAY) } of a wireless signal transmitted on the antenna port corresponding to the one signal, { delay spread (DELAY SPREAD), doppler spread (Doppler spread), doppler shift (Doppler shift), average delay (AVERAGE DELAY) } of a wireless signal transmitted on the antenna port corresponding to the other signal can be inferred.
As an example, a QCL type between one signal and another signal is QCL type E (QCL-TypeE) refers to: the { delay spread (DELAY SPREAD), average delay (AVERAGE DELAY) } of the wireless signal transmitted on the antenna port corresponding to the one signal can be inferred from the { delay spread (DELAY SPREAD), average delay (AVERAGE DELAY) } of the wireless signal transmitted on the antenna port corresponding to the other signal.
As one example, QCL type (QCLtype) between one signal and another signal is QCL-TypeD refers to: the one reference signal and the other reference signal can be received with the same spatial reception parameter (Spatial Rxparameters).
As an embodiment, the spatial correlation (Spatial Relation) relationship of one signal to another signal refers to: the one signal is transmitted with a spatial filter that receives the other signal.
As an embodiment, the spatial correlation (Spatial Relation) relationship of one signal to another signal refers to: the other signal is received with a spatial filter that transmits the one signal.
As an embodiment, the Q1 transmission configuration parameters are used by Q1 TRP to transmit the first wireless signal, respectively.
As one embodiment, the first type of relationship comprises a QCL relationship.
As one embodiment, the first type of relationship includes QCL type a.
For one embodiment, the first type of relationship comprises a first type of QCL relationship comprising large scale features including doppler shift.
For one embodiment, the first type of relationship comprises a first type of QCL relationship, and the large scale features comprised by the first type of QCL relationship comprise doppler spread.
As an embodiment, the sentence "the first wireless signal has a first type of relation with the first reference signal" includes that the first reference signal is used to determine a reception frequency of the first wireless signal.
As an embodiment, the sentence "the first wireless signal has a first type of relation with the first reference signal" includes that the first reference signal is used to determine a transmission frequency of the first wireless signal.
As an embodiment, the sentence "the first wireless signal has a first type of relationship with the first reference signal" includes that the first reference signal is used to determine a doppler shift of the first wireless signal.
As an embodiment, the sentence "the first radio signal has a first type of relation to the first reference signal" comprises that the first reference signal is used to determine the doppler spread of the first radio signal.
As an embodiment, the sentence "the first wireless signal and the first reference signal have a first type of relationship" includes that the reception frequencies of the first reference signal and the first wireless signal are the same.
As an embodiment, the sentence "the first wireless signal and the first reference signal have a first type of relationship" includes that the transmission frequencies of the first reference signal and the first wireless signal are the same.
As an embodiment, the sentence "the first wireless signal has a first type of relation with the first reference signal" includes that doppler shifts of the first reference signal and the first wireless signal are the same.
As an embodiment, the sentence "the first radio signal has a first type of relation to the first reference signal" includes that the doppler spread of the first reference signal and the first radio signal is the same.
As an embodiment, the sentence "the first wireless signal and the first reference signal have a first type of relationship" includes that a deviation of receiving frequencies of the first reference signal and the first wireless signal is F1 hz, and F1 is a real number.
As a sub-embodiment of the above embodiment, the F1 is indicated to the first node by the second node.
As a sub-embodiment of the above embodiment, the F1 is determined by the first node itself.
As an embodiment, the sentence "the first wireless signal and the first reference signal have a first type of relationship" includes that a deviation of transmission frequencies of the first reference signal and the first wireless signal is F2 hz, and the F2 is a real number.
As a sub-embodiment of the above embodiment, the F2 is indicated to the first node by the second node.
As a sub-embodiment of the above embodiment, the F2 is determined by the first node itself.
As one embodiment, the second type of relationship comprises a QCL relationship.
As one embodiment, the second class of relationships includes QCL type E.
For one embodiment, the second type of relationship includes a second type of QCL relationship that includes large scale features that do not include doppler shift.
As one embodiment, the second type of relationship includes a second type of QCL relationship that includes large scale features that do not include doppler spread.
As an embodiment, the sentence "the first radio signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship" includes that the one of the Q1 reference signals other than the first reference signal is not used to determine the reception frequency of the first radio signal.
As an embodiment, the sentence "the first radio signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship" includes that the one of the Q1 reference signals other than the first reference signal is not used to determine a transmission frequency of the first radio signal.
As an embodiment, the sentence "there is a second type of relation between the first radio signal and one of the Q1 reference signals other than the first reference signal" includes that the one of the Q1 reference signals other than the first reference signal is not used to determine the doppler shift of the first radio signal.
As an embodiment, the sentence "there is a second type of relation between the first radio signal and one of the Q1 reference signals other than the first reference signal" includes that the one of the Q1 reference signals other than the first reference signal is not used to determine the doppler spread of the first radio signal.
As one embodiment, the sentence "the first radio signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship" includes that the one of the Q1 reference signals other than the first reference signal and the first radio signal are different in reception frequency.
As one embodiment, the sentence "there is a second type of relationship between the first radio signal and one of the Q1 reference signals other than the first reference signal" includes that the one of the Q1 reference signals other than the first reference signal and the first radio signal are different in transmission frequency.
As an embodiment, the sentence "the first radio signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship" includes that the one of the Q1 reference signals other than the first reference signal and the first radio signal have different doppler shifts.
As an embodiment, the sentence "there is a second type of relationship between the first radio signal and one of the Q1 reference signals other than the first reference signal" includes that the one of the Q1 reference signals other than the first reference signal and the first radio signal differ in doppler spread.
As an embodiment, the sentence "there is a second type of relation between the first radio signal and one of the Q1 reference signals other than the first reference signal" includes that the one of the Q1 reference signals other than the first reference signal is used to determine a spatial reception filter of the first radio signal.
As an embodiment, the sentence "the first radio signal and one reference signal other than the first reference signal of the Q1 reference signals have a second type of relation" includes that if a doppler shift is included in QCL parameters included in the second type of relation, the doppler shift included in the QCL parameters included in the second type of relation is not used for receiving the first radio signal.
As an embodiment, the sentence "the first radio signal and one reference signal other than the first reference signal of the Q1 reference signals have a second type of relationship" includes that if a doppler spread is included in QCL parameters included in the second type of relationship, the doppler spread included in the QCL parameters included in the second type of relationship is not used for receiving the first radio signal.
As an embodiment, the sentence "the Q1 transmission configuration parameters are commonly used for reception of the first wireless signal" includes: the Q1 transmission configuration parameters are used to determine a first spatial receive filter, which is used to receive the first wireless signal.
As an embodiment, the sentence "the Q1 transmission configuration parameters are commonly used for reception of the first wireless signal" includes: the Q1 transmission configuration parameters are used to determine Q1 spatial receive filters, the Q1 spatial receive filters being used to receive the first wireless signal.
As an embodiment, the sentence "the Q1 transmission configuration parameters are commonly used for reception of the first wireless signal" includes: the first node receives the first wireless signal in an SFN manner with Q1 transmission configuration parameters.
As an embodiment, the sentence "the Q1 transmission configuration parameters are commonly used for reception of the first wireless signal" includes: the first node receives the first wireless signal with Q1 transmission configuration parameters in the first set of time-frequency resources, respectively.
As a sub-embodiment of the above embodiment, the first wireless signal is a single PDSCH.
As a sub-embodiment of the above embodiment, the first wireless signal is a single DMRS port.
As a sub-embodiment of the above embodiment, the first wireless signal is a single CSI-RS port.
As an embodiment, the first set of time-frequency resources includes a positive integer number of Resource Elements (REs) in the frequency domain.
As one embodiment, the first set of time-frequency resources comprises a positive integer number of resource blocks (ResourceBlock, RB) in the frequency domain.
As one embodiment, the first set of time-frequency resources includes a positive integer number of sets of resource blocks (Resource Block Group, RBGs) in the frequency domain.
As an embodiment, the first set of time-frequency resources includes a positive integer number of Control channel elements (Control CHANNEL ELEMENT, CCE) in the frequency domain.
As an embodiment, the first set of time-frequency resources comprises a positive integer number of multicarrier symbols in the time domain.
As an embodiment, the first set of time-frequency resources comprises a positive integer number of time slots in the time domain.
As an embodiment, the first set of time-frequency resources comprises a positive integer number of subframes in the time domain.
As an embodiment, the first set of time-frequency resources comprises a plurality of consecutive multicarrier symbols in the time domain.
As an embodiment, the first set of time-frequency resources comprises a plurality of consecutive resource blocks in the frequency domain.
As an embodiment, the first set of time-frequency resources comprises a plurality of discontinuous resource blocks in the frequency domain.
As an embodiment, the first information block includes SCI (Sidelink Control Information ).
As an embodiment, the first information block comprises one or more fields in one SCI.
As an embodiment, the first information block comprises one or more fields in a SCI format.
As an embodiment, the first information block includes UCI (Uplink Control Information ).
As an embodiment, the first information block includes one or more fields in a UCI.
As an embodiment, the first information block includes one or more fields in a UCI format.
As an embodiment, the first information block includes DCI (DownlinkControl Information ).
As an embodiment, the first information block includes one or more fields in one DCI.
As an embodiment, the first information block includes one or more fields in one DCI format.
As an embodiment, the first information block comprises higher layer signaling.
As an embodiment, the first information block comprises one or more fields of higher layer signaling.
As an embodiment, the first information block comprises one or more fields in MAC layer signaling.
As an embodiment, the first information block includes a MAC-CE (MAC Control Element ).
As an embodiment, the first information block includes one or more domains in RRC signaling.
As an embodiment, the second information block includes SCI (Sidelink Control Information ).
As an embodiment, the second information block comprises one or more fields in one SCI.
As an embodiment, the second information block comprises one or more fields in a SCI format.
As an embodiment, the second information block includes UCI (Uplink Control Information ).
As an embodiment, the second information block includes one or more fields in a UCI.
As an embodiment, the second information block includes one or more fields in a UCI format.
As an embodiment, the second information block includes DCI (DownlinkControl Information ).
As an embodiment, the second information block includes one or more fields in one DCI.
As an embodiment, the second information block includes one or more fields in one DCI format.
As an embodiment, the second information block comprises higher layer signaling.
As an embodiment, the second information block comprises one or more fields of higher layer signaling.
As an embodiment, the second information block comprises one or more fields in MAC layer signaling.
As an embodiment, the second information block includes a MAC-CE (MAC Control Element ).
As an embodiment, the second information block includes one or more domains in RRC signaling.
As one embodiment, any one of the Q1 reference signals includes SSB.
As an embodiment, any one of the Q1 reference signals includes a CSI-RS.
As an embodiment, any one of the Q1 reference signals includes SRS.
As an embodiment, any one of the Q1 reference signals includes a DMRS.
As one embodiment, any one of the Q1 reference signals includes a TRS.
As an embodiment, any one of the Q1 reference signals includes PTRS.
As one embodiment, any of the Q2 reference signals includes SSB.
As an embodiment, any one of the Q2 reference signals includes a CSI-RS.
As an embodiment, any one of the Q2 reference signals includes SRS.
As an embodiment, any one of the Q2 reference signals includes a DMRS.
As one embodiment, any one of the Q2 reference signals includes a TRS.
As an embodiment, any one of the Q2 reference signals comprises PTRS.
Example 2
Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2.
Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5 gsystem )/EPS (Evolved PACKET SYSTEM, evolved packet system) 200, or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified DATA MANAGEMENT) 220, and internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility MANAGEMENT ENTITY )/AMF (Authentication MANAGEMENT FIELD, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (SERVICE GATEWAY, serving Gateway)/UPF (User Plane Function), 212, and P-GW (PACKET DATE Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.
As an embodiment, the first node in the present application includes the gNB203.
As an embodiment, the second node in the present application includes the gNB203.
As an embodiment, the second node in the present application includes the UE241.
As an embodiment, the first node in the present application includes the UE241.
As an embodiment, the second node in the present application includes the UE201.
As an embodiment, the second node in the present application includes the gNB204.
As an embodiment, the UE201 is included in the user equipment in the present application.
As an embodiment, the UE241 is included in the user equipment in the present application.
As an embodiment, the base station apparatus in the present application includes the gNB203.
As an embodiment, the base station device in the present application includes the gNB204.
As an embodiment, the UE201 supports sidelink transmission.
As an embodiment, the UE201 supports a PC5 interface.
As an embodiment, the UE201 supports the Uu interface.
As an embodiment, the UE241 supports sidelink transmission.
As an embodiment, the UE241 supports a PC5 interface.
As an embodiment, the gNB203 supports the Uu interface.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first node (RSU in UE or V2X, in-vehicle device or in-vehicle communication module) and a second node (gNB, RSU in UE or V2X, in-vehicle device or in-vehicle communication module), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the links between the first node and the second node and the two UEs through PHY301. The L2 layer 305 includes a MAC (MediumAccess Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (PACKETDATA CONVERGENCE PROTOCOL ) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for the first node to the second node. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets by ARQ, and RLC sublayer 303 also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), and the radio protocol architecture for the first node and the second node in the user plane 350 is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service DataAdaptationProtocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support diversity of traffic. Although not shown, the first node may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.
As an embodiment, the first wireless signal in the present application is generated in the PHY351.
As an embodiment, the first wireless signal in the present application is generated in the MAC352.
As an embodiment, the first wireless signal in the present application is generated in the PHY301.
As an embodiment, the first wireless signal in the present application is generated in the MAC302.
As an embodiment, the first radio signal in the present application is generated in the RRC306.
As an embodiment, the first information block in the present application is generated in the PHY351.
As an embodiment, the first information block in the present application is generated in the MAC352.
As an embodiment, the first information block in the present application is generated in the PHY301.
As an embodiment, the first information block in the present application is generated in the MAC302.
As an embodiment, the first information block in the present application is generated in the RRC306.
As an embodiment, the second information block in the present application is generated in the PHY351.
As an embodiment, the second information block in the present application is generated in the MAC352.
As an embodiment, the second information block in the present application is generated in the PHY301.
As an embodiment, the second information block in the present application is generated in the MAC302.
As an embodiment, the second information block in the present application is generated in the RRC306.
Example 4
Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 410 and a second communication device 450 in communication with each other in an access network.
The first communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.
The second communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.
In the transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the first communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the first communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.
In a transmission from the first communication device 410 to the second communication device 450, each receiver 454 receives a signal at the second communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. A receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.
In the transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.
In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.
As an embodiment, the first node in the present application includes the second communication device 450, and the second node in the present application includes the first communication device 410.
As an embodiment, the first node in the present application includes the first communication device 410, and the second node in the present application includes the second communication device 450.
As an embodiment, the first node in the present application includes the second communication device 450, and the second node in the present application includes the second communication device 450.
As a sub-embodiment of the above embodiment, the second communication device 450 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.
As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.
As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using a positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.
As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 means at least: receiving a first information block and a second information block; receiving a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first information block and a second information block; receiving a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As one embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting the first information block and the second information block; transmitting a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As one embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting the first information block and the second information block; transmitting a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As an example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used in the present application to receive the first wireless signal.
As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to transmit the first wireless signal.
As an example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used in the present application to receive the second wireless signal.
As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to transmit the second wireless signal.
Example 5
Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the application, as shown in fig. 5. In fig. 5, communication is performed between a first node U1 and a second node U2 via an air interface. In fig. 5, the order of the steps in the blocks does not represent a particular chronological relationship between the individual steps.
For the first node U1, the second radio signal is received in step S11, the first information block is received in step S12, the second information block is received in step S13, and the first radio signal is received in step S14.
For the second node U2, the second radio signal is transmitted in step S21, the first information block is transmitted in step S22, the second information block is transmitted in step S23, and the first radio signal is transmitted in step S24. Wherein steps S21 and S11 included in the dashed box F51 are optional.
In embodiment 5, the first node U1 receives a first information block and a second information block; receiving a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols. The first node U1 receives a second wireless signal, which is started to be transmitted before the start time of the first set of time-frequency resources. Wherein Q2 transmission configuration parameters are commonly used for reception of the second wireless signal, the Q2 being a positive integer greater than 1; the Q2 transmission configuration parameters are used to determine Q2 reference signals, respectively, a second reference signal being one of the Q2 reference signals; the second wireless signal and the second reference signal have a first type of relationship; when the first time length is less than the first time threshold, a number of transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is used to determine the first reference signal from the Q1 reference signals.
As an embodiment, the air interface between the second node U2 and the first node U1 comprises a PC5 interface.
As an embodiment, the air interface between the second node U2 and the first node U1 comprises a sidelink.
As an embodiment, the air interface between the second node U2 and the first node U1 comprises a Uu interface.
As an embodiment, the air interface between the second node U2 and the first node U1 comprises a cellular link.
As an embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between user equipment and user equipment.
As an embodiment, the air interface between the second node U2 and the first node U1 comprises a radio interface between a base station device and a user equipment.
Example 6
Embodiment 6 illustrates a schematic diagram of SFN transmission according to one embodiment of the application, as shown in fig. 6. In fig. 6, TRP1 and TRP2 simultaneously transmit radio signals to the UE. Wherein TRP1 transmits a radio signal to the UE via transmit beam 1 and TRP2 transmits a radio signal to the UE via transmit beam 2. In embodiment 6, the first set of transmission configuration parameters in the present application comprises 2 transmission configuration parameters, which are used for determining the transmit beam 1 and the transmit beam 2, respectively. In embodiment 6, SFN and multi-TRP space division multiplexing are different in that: in the SFN mode, for the UE, the antenna ports for transmitting radio signals of TRP1 and TRP2 are the same, and the radio signals transmitted by TRP1 and TRP2 are the same; in the multi-TRP space division multiplexing mode, the antenna ports for transmitting the radio signals are different between TRP1 and TRP2, and the radio signals transmitted by TRP1 and TRP2 may be different.
As one embodiment, Q1 is 2.
As an embodiment, the Q1 transmission configuration parameters are used by Q1 third nodes to transmit the first wireless signal, respectively.
As a sub-embodiment of the above embodiment, the Q1 third nodes have the same cell index (cell ID).
As a sub-embodiment of the above embodiment, the Q1 third nodes have different cell indexes (cell IDs).
As a sub-embodiment of the above embodiment, the third node comprises a TRP.
As a sub-embodiment of the above embodiment, the third node includes an RRU (Remote Radio Unit ).
As a sub-embodiment of the foregoing embodiment, the third node includes an RRH (Remote Radio Head ).
As a sub-embodiment of the above embodiment, the third node includes an AAU (ACTIVE ANTENNA Unit ).
As a sub-embodiment of the above embodiment, the third node includes a BBU (BaseBand Unit).
As a sub-embodiment of the above embodiment, the third node comprises a gNB.
As an embodiment, the second node includes Q1 of the third nodes.
As an embodiment, the second information block includes second indication information, which is used to determine that the transmission mode of the first wireless signal is SFN.
As one embodiment, the Q1 transmission configuration parameters are used to determine Q1 transmit beams for the second node.
Example 7
Embodiment 7 illustrates a schematic diagram of signal transmission in an HST-SFN scenario according to one embodiment of the present application, as shown in fig. 7. In fig. 7, TRP1 and TRP2 simultaneously transmit radio signals to UEs located in a high speed train. In embodiment 7, the TRP1 transmits a first reference signal and a first radio signal to a UE located in a high speed train, and the TRP2 transmits a third reference signal and a first radio signal to a UE located in a high speed train. In embodiment 7, the third reference signal is one reference signal other than the first reference signal among the Q1 reference signals in the present application.
As an embodiment, the first reference signal is used for tracking of the reception timing and the reception frequency.
As an embodiment, the first reference signal is indicative of a configuration parameter trs-Info.
As an embodiment, the third reference signal is one reference signal other than the first reference signal among the Q1 reference signals.
As an embodiment, the third reference signal is used for tracking of the reception timing and the reception frequency.
As an embodiment, the third reference signal is indicative of the configuration parameter trs-Info.
As an embodiment, the first reference signal and the third reference signal are both CSI-RS.
As an embodiment, the first reference signal and the third reference signal are both DMRS.
As an embodiment, the first reference signal and the third reference signal are DMRS of the first wireless signal.
As an embodiment, the first reference signal and the third reference signal are orthogonal in the time-frequency domain.
As an embodiment, the first reference signal is not doppler precompensated and the third reference signal is doppler precompensated.
As an embodiment, the first reference signal and the third reference signal are both doppler precompensated.
As an embodiment, neither the first reference signal nor the third reference signal is doppler precompensated.
Example 8
Embodiment 8 illustrates a schematic diagram of doppler shift precompensation in an SFN scenario according to one embodiment of the present application, as shown in fig. 8. In fig. 8, the left picture shows a schematic diagram of the frequency ranges occupied by the radio signals transmitted by the two TRPs at the UE receiver without doppler shift precompensation, wherein the filled boxes with vertical stripes and the filled boxes with horizontal stripes represent schematic diagrams of the frequency ranges occupied by the two radio signals transmitted by TRP1 and TRP2 at the UE receiver, respectively; wherein, the center frequency corresponding to the wireless signal sent by TRP1 is f0+fd1, and the center frequency corresponding to the wireless signal sent by TRP2 is f0+f2; where f0 represents the center transmission frequencies of TRP1 and TRP2 (i.e., the center transmission frequencies of TRP1 and TRP2 are the same), fd1 represents the Doppler shift at the UE receiver of the wireless signal transmitted by TRP1, and fd2 represents the Doppler shift at the UE receiver of the wireless signal transmitted by TRP 2. In fig. 8, the right-hand picture shows a schematic diagram of the frequency ranges occupied by two radio signals transmitted by two TRPs after doppler shift pre-compensation at the UE receiver, wherein the frequency ranges of radio signals transmitted by TRP1 and TRP2 at the UE receiver overlap, and their center frequencies are f0+fd3, where fd3 represents the residual frequency offset after doppler shift pre-compensation. And f0, f1, f2 and f3 are real numbers with units of hertz.
As an embodiment, said fd3 is equal to said fd1.
As one embodiment, when doppler precompensation is employed, the first wireless signal transmitted by TRP1 is not precompensated; the first wireless signal transmitted by TRP2 is precompensated and the precompensated frequency offset is fd1-fd2.
As one embodiment, when doppler precompensation is employed, the transmission center frequency point of the first wireless signal transmitted by TRP1 is fa, and the transmission center frequency point of the first wireless signal transmitted by TRP2 is fa+f1-f2, wherein fa is a real number in hertz.
As a sub-embodiment of the above embodiment, the center transmission frequency of the first reference signal is used to determine the fa.
As a sub-embodiment of the above embodiment, the fa is equal to a center transmission frequency of the first reference signal.
As an embodiment, when doppler precompensation is used, both TRP1 and TRP2 are precompensated on the first radio signal transmitted separately.
As one embodiment, when doppler precompensation is employed, the transmission center frequency point of the first wireless signal transmitted by TRP1 is fb-f1, the transmission center frequency point of the first wireless signal transmitted by TRP2 is fb-f2, and fb is a real number in hertz.
As a sub-embodiment of the above embodiment, a center transmission frequency of the first reference signal is used to determine the fb.
As a sub-embodiment of the above embodiment, the fb is equal to a center transmission frequency of the first reference signal.
As a sub-embodiment of the above embodiment, the fb is equal to a sum of a center transmission frequency of the first reference signal and a frequency offset, the frequency offset being a real number in hertz.
As one embodiment, the first type of relationship includes a doppler shift quasi co-location relationship; the second class of relationships does not include Doppler shift quasi co-location relationships.
As one embodiment, the phrase "the first class of relationships includes doppler shift quasi co-location relationships" includes that the first class of relationships includes a first quasi co-location relationship that includes large scale features including doppler shift.
As an embodiment, the phrase "the second class of relationships does not include doppler shift quasi co-location relationships" includes that the second class of relationships includes a second quasi co-location relationship that includes large scale features that do not include doppler shift.
Example 9
Embodiment 9 illustrates a schematic diagram of the time relationship between the second information block and the first wireless signal according to one embodiment of the present application, as shown in fig. 9. In fig. 9, two boxes filled with white represent schematic diagrams of the time domain resources occupied by the second information block and the first wireless signal, respectively. In embodiment 9, a length of a time interval between a reception deadline of the second information block and a reception start time of the first set of time-frequency resources is equal to a first time length.
As an embodiment, the phrase "a length of a time interval between a time of reception of the second information block and a time of reception of the first set of time-frequency resources" in the present application includes: a length of a time interval between a reception deadline of the second information block and a reception start time of the first set of time-frequency resources.
As an embodiment, the phrase "a length of a time interval between a time of reception of the second information block and a time of reception of the first set of time-frequency resources" in the present application includes: a length of a time interval between a reception start time of the second information block and a reception start time of the first set of time-frequency resources.
As an embodiment, the phrase "a length of a time interval between a time of reception of the second information block and a time of reception of the first set of time-frequency resources" in the present application includes: a length of a time interval between a reception start time of the second information block and a reception deadline time of the first set of time-frequency resources.
As an embodiment, the phrase "a length of a time interval between a time of reception of the second information block and a time of reception of the first set of time-frequency resources" in the present application includes: a length of a time interval between a receive deadline of the second block of information and a receive deadline of the first set of time-frequency resources.
As an embodiment, the phrase "a length of a time interval between a time of reception of the second information block and a time of reception of the first set of time-frequency resources" in the present application includes: a length of a time interval between a reception end time of a time slot in which the second information block is located and a reception start time of the first set of time-frequency resources.
As an embodiment, the phrase "a length of a time interval between a time of reception of the second information block and a time of reception of the first set of time-frequency resources" in the present application includes: a length of a time interval between a reception end time of a time slot in which the second information block is located and a reception start time of a time slot in which the first set of time-frequency resources is located.
As a sub-embodiment of the above embodiment, the reception start time of the second information block is a time at which reception of the first multicarrier symbol of the second information block is started.
As a sub-embodiment of the above embodiment, the reception deadline of the second information block is a time when reception of a last multicarrier symbol of the second information block is completed.
As a sub-embodiment of the foregoing embodiment, the reception start time of the first set of time-frequency resources is a time when reception of the first multicarrier symbol of the first set of time-frequency resources is started.
As a sub-embodiment of the foregoing embodiment, the reception deadline of the first set of time-frequency resources is a time when reception of a last multicarrier symbol of the first set of time-frequency resources is completed.
As an embodiment, the first time threshold comprises a continuous length of time.
As an embodiment, the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As an embodiment, the multicarrier symbol comprises an OFDM symbol.
As an embodiment, the multi-carrier symbol comprises a DFT-s-OFDM symbol.
As an embodiment, the multicarrier symbol comprises an SC-FDMA symbol.
As an embodiment, the first time threshold comprises a positive integer number of time slots.
As an embodiment, the second information block indicates the first set of transmission configuration parameters.
As an embodiment, the first time threshold comprises a minimum time required for receiving the second information block and applying the first set of transmission configuration parameters indicated by the second information block.
As an embodiment, the first time threshold comprises a minimum time required from a first multicarrier symbol occupied by starting to receive the second information block to a time when the first set of transmission configuration parameters indicated by the second information block can be applied.
As an embodiment, the first time threshold comprises a minimum time required for the first set of transmission configuration parameters indicated by the second information block to be applicable from the completion of the reception of the last multicarrier symbol occupied by the second information block.
As an embodiment, the first time threshold comprises a minimum time interval required to receive one PDCCH and apply QCL configuration parameters indicated in the one PDCCH.
As an embodiment, the first time threshold comprises a minimum time required from a first multicarrier symbol occupied by starting to receive one PDCCH to a QCL configuration parameter indicated by the one PDCCH being applicable.
As an embodiment, the first time threshold comprises a minimum time required for the QCL configuration parameters indicated by one PDCCH to be applicable from the reception of the last multicarrier symbol occupied by the completion of the one PDCCH.
As an embodiment, a subcarrier spacing of subcarriers occupied by the first wireless signal in the frequency domain is used to determine the first time threshold.
As an embodiment, the first time threshold is configured by higher layer signaling.
As an embodiment, the first time threshold is configured by RRC signaling.
As an embodiment, the first time threshold is configured by a domain timeDurationForQCL in RRC signaling.
As an embodiment, the second information block includes first indication information, and when the first time length is not less than the first time threshold, the first indication information is used to determine the first reference signal from the Q1 reference signals.
As one embodiment, the first indication information explicitly indicates the first reference signal from among the Q1 reference signals.
As one embodiment, the first indication information implicitly indicates the first reference signal from among the Q1 reference signals.
As one embodiment, the first indication information is used to determine a plurality of reference signals, and the numbers of the plurality of reference signals are used to determine the first reference signal from the Q1 reference signals.
As an embodiment, the first indication information is used to determine a plurality of transmission configuration parameters, the numbers of which are used to determine the first reference signal from the Q1 reference signals.
As an embodiment, the first indication information is used to determine a plurality of transmission configuration parameters, and the reference signal associated with a first transmission configuration parameter of the plurality of transmission configuration parameters is the first reference signal.
As an embodiment, the first indication information indicates one transmission configuration parameter, and the first reference signal is one reference signal included in the one transmission configuration parameter indicated by the first indication information.
As one embodiment, when the first time length is less than the first time threshold, the first reference signal is a reference signal determined by a transmission configuration parameter with the smallest number of the Q1 transmission configuration parameters.
As a sub-embodiment of the above embodiment, the "transmission configuration parameter with the smallest number of the Q1 transmission configuration parameters" refers to the first transmission configuration parameter of the Q1 transmission configuration parameters.
As a sub-embodiment of the above embodiment, a transmission configuration parameter with the smallest number of the Q1 transmission configuration parameters is used to determine a plurality of reference signals, and the first reference signal is a reference signal configured with trs-Info in the plurality of reference signals.
As a sub-embodiment of the foregoing embodiment, a transmission configuration parameter with the smallest number of the Q1 transmission configuration parameters is used to determine a plurality of reference signals, and the first reference signal is a reference signal having a QCL-type a relationship among the plurality of reference signals.
Example 10
Embodiment 10 illustrates a schematic diagram of the time relationship between the second wireless signal, the second information block and the first wireless signal according to one embodiment of the present application, as shown in fig. 10. In fig. 10, three boxes filled with white represent schematic diagrams of time domain resources occupied by the second radio signal, the second information block, and the first radio signal, respectively. In embodiment 10, a length of a time interval between a reception cutoff time of the second information block and a reception start time of the first set of time-frequency resources is equal to a first time length, and the reception start time of the second wireless signal is earlier than the reception start time of the first wireless signal.
As one embodiment, the second wireless signal includes a PDSCH.
As an embodiment, the second wireless signal includes a PDCCH.
As one embodiment, the second wireless signal includes a DMRS.
As an embodiment, the second wireless signal includes PUSCH.
As an embodiment, the second wireless signal includes a PUCCH.
As one embodiment, the second wireless signal includes SRS.
As one embodiment, the second wireless signal includes a PSSCH.
As an embodiment, the second wireless signal comprises a PSCCH.
As one embodiment, the second wireless signal includes a CSI-RS.
As one embodiment, the second wireless signal comprises PTRS.
As an embodiment, a time interval between the time of reception of the second wireless signal and the time of reception of the first wireless signal is greater than a second time threshold, and a time length of the second time threshold is equal to a time length of a positive integer number of multicarrier symbols.
As an embodiment, the second wireless signal is received at a time earlier than the first wireless signal.
As an embodiment, the second wireless signal is received at a time earlier than the second information block.
As a sub-embodiment of the above embodiment, the reception timing of the second wireless signal includes a reception start timing of the second wireless signal.
As a sub-embodiment of the above embodiment, the reception time of the second wireless signal includes a reception cut-off time of the second wireless signal.
As a sub-embodiment of the above embodiment, the reception timing of the first wireless signal includes a reception start timing of the second wireless signal.
As a sub-embodiment of the above embodiment, the reception time of the first wireless signal includes a reception cut-off time of the second wireless signal.
As a sub-embodiment of the above embodiment, the reception timing of the second information block includes a reception start timing of the second wireless signal.
As a sub-embodiment of the above embodiment, the reception time of the second information block includes a reception cutoff time of the second wireless signal.
As an embodiment, the second wireless signal is a wireless signal transmitted by Q1 transmission configuration parameters last time before the reception time of the first wireless signal.
As an embodiment, the second wireless signal is a wireless signal transmitted using SFN mode last before a reception time of the first wireless signal.
As one embodiment, the second wireless signal is a wireless signal transmitted by a transmission configuration parameter having the first type of relation the last time before a reception time of the first wireless signal;
Q2 transmission configuration parameters are commonly used for reception of the second wireless signal, the Q2 being a positive integer greater than 1; the Q2 transmission configuration parameters are used to determine Q2 reference signals, respectively, a second reference signal being one of the Q2 reference signals; the second wireless signal and the second reference signal have a first type of relationship; when the first time length is less than the first time threshold, a number of transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is used to determine the first reference signal from the Q1 reference signals.
As an embodiment, when the first time length is less than the first time threshold, the number of the transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is the same as the number of the transmission configuration parameters associated with the first reference signal in the Q1 transmission configuration parameters.
As an embodiment, the number of the transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is associated with one TRP, and the number of the transmission configuration parameters associated with the first reference signal in the Q1 transmission configuration parameters is associated with one TRP.
As an embodiment, the number of the transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is associated with one TRP number, and the number of the transmission configuration parameters associated with the first reference signal in the Q1 transmission configuration parameters is associated with one TRP number.
As an embodiment, the number of the transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is related to the TRP that transmitted the second reference signal.
As an embodiment, the number of the transmission configuration parameters associated with the first reference signal in the Q1 transmission configuration parameters is associated to a first packet index, and the number of the transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is associated to a second packet index.
As a sub-embodiment of the above embodiment, the first packet index is associated with one TRP and the second packet index is associated with one TRP.
As one embodiment, the first packet index and the second packet index are the same when the first time length is less than the first time threshold.
As an embodiment, the transmission configuration parameter associated with the second reference signal is one of the Q2 transmission configuration parameters used to determine the second reference signal.
As an embodiment, the transmission configuration parameter associated with the first reference signal is one transmission configuration parameter used to determine the first reference signal among the Q1 transmission configuration parameters.
As an embodiment, any of the Q2 transmission configuration parameters includes a spatial domain filter (spatial domain filter).
As an embodiment, any one of the Q2 transmission configuration parameters includes TCI (transmission configureation indicator).
As one embodiment, any of the Q2 transmission configuration parameters includes a TCI state (TCI state).
As an embodiment, any of the Q2 transmission configuration parameters includes a TCI code point (TCI Codepoint).
As an embodiment, the first set of transmission configuration parameters includes a TCI code point (TCI Codepoint).
As an embodiment, any of the Q2 transmission configuration parameters includes a spatial correlation (Spatial Relation) parameter.
As an embodiment, any one of the Q2 transmission configuration parameters includes a QCL (Quasi co-located, quasi-CoLocation) parameter.
As an embodiment, any one of the Q2 transmission configuration parameters is used to determine the transmit beam.
As an embodiment, any one of the Q2 transmission configuration parameters is used to determine the receive beam.
As an embodiment, any one of the Q2 transmission configuration parameters is used to determine a spatial transmit filter.
As an embodiment, any one of the Q2 transmission configuration parameters is used to determine a spatial reception filter.
As an embodiment, any one of the Q2 transmission configuration parameters is used to determine a spatial correlation (Spatial Relation) with a reference signal.
As an embodiment, any one of the Q2 transmission configuration parameters is used to determine the QCL relationship with a reference signal.
As a sub-embodiment of the above embodiment, the one reference signal includes one of { SSB, CSI-RS, TRS, SRS, PTRS, DMRS }.
Example 11
Embodiment 11 illustrates a plurality of transmission configuration parameter sets and a schematic diagram of transmission configuration parameters respectively included in the plurality of transmission configuration parameter sets according to an embodiment of the present application, as shown in fig. 11. Fig. 11 shows N transmission configuration parameter sets, which are numbered sequentially, denoted by the numbers #1, #2, … …, # N, respectively. Wherein any one of the N transmission configuration parameter sets includes one or more transmission configuration parameters, and the one or more transmission configuration parameters included in any one of the N transmission configuration parameter sets are also numbered sequentially, for example, the transmission configuration parameter set #1 includes M1 transmission configuration parameters, and the numbers of the M1 transmission configuration parameters are #1, #2, … …, # M1 sequentially; the transmission configuration parameter set #2 includes M2 transmission configuration parameters, and the numbers of the M1 transmission configuration parameters are #1, #2, … …, # m2, and the numbers of the transmission configuration parameters included in other transmission configuration parameter sets and so on.
As an embodiment, the first information block is used to determine Q3 transmission configuration parameter sets, any one of the Q3 transmission configuration parameter sets including Q4 transmission configuration parameters, Q3 being a positive integer greater than 1, Q4 being a positive integer; when the first time length is less than the first time threshold, the first transmission configuration parameter set is a transmission configuration parameter set with the smallest number including Q1 transmission configuration parameters in the Q3 transmission configuration parameter sets.
As an embodiment, the first information block includes part or all of the fields in one MAC-CE.
As an embodiment, the first information block is used to activate transmission configuration parameters.
As an embodiment, the first information block is used to activate the TCI state.
As one embodiment, the first information block is used to determine Q3 TCI code points, any one of the Q3 TCI code points comprising Q4 TCI states.
As an embodiment, the second information includes a first TCI code point number, the first TCI code point number being used to determine one TCI code point from the Q3 TCI code points, the determined one TCI code point being used to determine the first set of transmission configuration parameters.
Example 12
Embodiment 12 illustrates a block diagram of a processing device for use in a first node, as shown in fig. 12. In embodiment 12, the first node 1200 comprises a first receiver 1201.
As one example, first receiver 1201 includes at least one of antenna 452, transmitter/receiver 454, multi-antenna receive processor 458, receive processor 456, controller/processor 459, memory 460, and data source 467 of fig. 4 of the present application.
In embodiment 12, the first receiver 1201 receives a first information block and a second information block and receives a first radio signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As an embodiment, the first node 1200 is a user equipment.
As an embodiment, the first node 1200 is a relay node.
As an embodiment, the first node 1200 is a base station.
As an embodiment, the first node 1200 is an in-vehicle communication device.
As an embodiment, the first node 1200 is a user equipment supporting V2X communication.
As an embodiment, the first node 1200 is a relay node supporting V2X communication.
As an embodiment, the first node 1200 is an IAB-capable base station device.
Example 13
Embodiment 13 illustrates a block diagram of a processing device for use in a second node, as shown in fig. 13. In embodiment 13, second node 1300 includes a first transmitter 1301.
As one example, the first transmitter 1301 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.
In embodiment 13, the first transmitter 1301 transmits a first information block and a second information block and transmits a first radio signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources; wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, the Q1 transmission configuration parameters being used together for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
As one embodiment, when the first time length is less than the first time threshold, the first reference signal is a reference signal determined by a transmission configuration parameter with the smallest number of the Q1 transmission configuration parameters.
As an embodiment, the first transmitter 1300 transmits a second wireless signal, which is started to be transmitted before the start time of the first set of time-frequency resources. Wherein Q2 transmission configuration parameters are commonly used for reception of the second wireless signal, the Q2 being a positive integer greater than 1; the Q2 transmission configuration parameters are used to determine Q2 reference signals, respectively, a second reference signal being one of the Q2 reference signals; the second wireless signal and the second reference signal have a first type of relationship; when the first time length is less than the first time threshold, a number of transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is used to determine the first reference signal from the Q1 reference signals.
As an embodiment, the second information block includes first indication information, and when the first time length is not less than the first time threshold, the first indication information is used to determine the first reference signal from the Q1 reference signals.
As one embodiment, the first type of relationship includes a doppler shift quasi co-location relationship; the second class of relationships does not include Doppler shift quasi co-location relationships.
As an embodiment, the first information block is used to determine Q3 transmission configuration parameter sets, any one of the Q3 transmission configuration parameter sets including Q4 transmission configuration parameters, Q3 being a positive integer greater than 1, Q4 being a positive integer; when the first time length is less than the first time threshold, the first transmission configuration parameter set is a transmission configuration parameter set with the smallest number including Q1 transmission configuration parameters in the Q3 transmission configuration parameter sets.
As an embodiment, the first reference signal is used to determine a receiving frequency at which the first wireless signal is received, and none of the Q1 reference signals other than the first reference signal is used to determine the receiving frequency at which the first wireless signal is received.
As an embodiment, the second node 1300 is a user equipment.
As an embodiment, the second node 1300 is a relay node.
As an embodiment, the second node 1300 is a base station.
As one embodiment, the second node 1300 is an in-vehicle communication device.
As an embodiment, the second node 1300 is a user equipment supporting V2X communication.
As one embodiment, the second node 1300 is a relay node supporting V2X communication.
As an embodiment, the second node 1300 is an IAB-capable base station device.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node in the application comprises, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low-power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The second node in the application comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an internet card, a low-power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The user equipment or the UE or the terminal in the application comprises, but is not limited to, mobile phones, tablet computers, notebooks, network cards, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle-mounted communication equipment, aircrafts, planes, unmanned planes, remote control planes and other wireless communication equipment. The base station equipment or the base station or the network side equipment in the application comprises, but is not limited to, wireless communication equipment and test equipment such as macro cell base stations, micro cell base stations, home base stations, relay base stations, eNB, gNB, transmission receiving nodes TRP, GNSS, relay satellites, satellite base stations, air base stations and the like, for example, transceiver devices for simulating partial functions of the base stations, signaling testers and the like.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A first node for wireless communication, comprising:
A first receiver that receives a first information block and a second information block, the second information block including downlink control information;
the first receiver receives a first radio signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources, the first radio signal comprising a physical downlink shared channel, the first radio signal comprising a demodulation reference signal;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, any one of the Q1 transmission configuration parameters comprising a TCI state, the Q1 transmission configuration parameters being commonly used for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
2. The first node of claim 1, wherein the first reference signal is a reference signal determined by a least numbered transmission configuration parameter of the Q1 transmission configuration parameters when the first time length is less than the first time threshold.
3. The first node of claim 1, comprising:
the first receiver receives a second wireless signal, the second wireless signal being transmitted beginning before a start time of the first set of time-frequency resources;
Wherein Q2 transmission configuration parameters are commonly used for reception of the second wireless signal, the Q2 being a positive integer greater than 1; the Q2 transmission configuration parameters are used to determine Q2 reference signals, respectively, a second reference signal being one of the Q2 reference signals; the second wireless signal and the second reference signal have a first type of relationship; when the first time length is less than the first time threshold, a number of transmission configuration parameters associated with the second reference signal in the Q2 transmission configuration parameters is used to determine the first reference signal from the Q1 reference signals.
4. A first node according to any of claims 1 to 3, characterized in that the second information block comprises first indication information, which is used for determining the first reference signal from the Q1 reference signals when the first time length is not smaller than the first time threshold.
5. The first node according to any of claims 1 to 4, wherein the first class of relationships comprises doppler shift quasi co-location relationships; the second class of relationships does not include Doppler shift quasi co-location relationships.
6. The first node according to any of claims 1 to 5, wherein the first information block is used to determine Q3 sets of transmission configuration parameters, any of the Q3 sets of transmission configuration parameters comprising Q4 transmission configuration parameters, the Q3 being a positive integer greater than 1, the Q4 being a positive integer; when the first time length is less than the first time threshold, the first transmission configuration parameter set is a transmission configuration parameter set with the smallest number including Q1 transmission configuration parameters in the Q3 transmission configuration parameter sets.
7. The first node according to any of claims 1 to 6, wherein the first reference signal is used for determining a reception frequency at which the first wireless signal is received, and none of the Q1 reference signals other than the first reference signal is used for determining a reception frequency at which the first wireless signal is received.
8. A second node for wireless communication, comprising:
a first transmitter that transmits a first information block and a second information block, the second information block including downlink control information;
The first transmitter transmits a first radio signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources, the first radio signal comprising a physical downlink shared channel, the first radio signal comprising a demodulation reference signal;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, any one of the Q1 transmission configuration parameters comprising a TCI state, the Q1 transmission configuration parameters being commonly used for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
9. A method for a first node for wireless communication, comprising:
receiving a first information block and a second information block, wherein the second information block comprises downlink control information;
Receiving a first wireless signal in a first set of time-frequency resources, the second information block being used to indicate the first set of time-frequency resources, the first wireless signal comprising a physical downlink shared channel, the first wireless signal comprising a demodulation reference signal;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, any one of the Q1 transmission configuration parameters comprising a TCI state, the Q1 transmission configuration parameters being commonly used for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
10. A method for a second node for wireless communication, comprising:
transmitting a first information block and a second information block, wherein the second information block comprises downlink control information;
Transmitting a first wireless signal in a first time-frequency resource set, wherein the second information block is used for indicating the first time-frequency resource set, the first wireless signal comprises a physical downlink shared channel, and the first wireless signal comprises a demodulation reference signal;
Wherein the first information block is used to determine a first set of transmission configuration parameters, the first set of transmission configuration parameters comprising Q1 transmission configuration parameters, any one of the Q1 transmission configuration parameters comprising a TCI state, the Q1 transmission configuration parameters being commonly used for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are used to determine Q1 reference signals, respectively, a first reference signal being one of the Q1 reference signals; a first type of relation is formed between the first wireless signal and the first reference signal, a second type of relation is formed between the first wireless signal and one reference signal other than the first reference signal in the Q1 reference signals, and the first type of relation and the second type of relation are different; a length of a time interval between a reception time of the second information block and a reception time of the first set of time-frequency resources is equal to a first time length, a magnitude relation between the first time length and a first time threshold being used to determine the first reference signal from the Q1 reference signals; the first time threshold comprises a time length of a positive integer number of multicarrier symbols.
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