CN114374484A

CN114374484A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN114374484A
Application number: CN202011098573.4A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2022-04-19
Anticipated expiration: 2040-10-14
Also published as: CN117938333A; CN114374484B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node receives a first information block and a second information block and receives a first wireless signal in a first set of time-frequency resources; the first information block is used to determine a first transmission configuration parameter set, the first transmission configuration parameter set comprising a plurality of transmission configuration parameters; the plurality of transmission configuration parameters are respectively used for determining a plurality of reference signals, and a first reference signal is one of the plurality of reference signals; the first wireless signal and the first reference signal have a first type of relationship therebetween, the first wireless signal and one of the plurality of reference signals other than the first reference signal have a second type of relationship therebetween, and the first type of relationship and the second type of relationship are different; a first time threshold is used to determine the first reference signal. By the method, the Doppler frequency shift resistance in the multi-transmission receiving node scene can be enhanced.

Description

Method and apparatus in a node used 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 a wireless signal in a wireless communication system supporting a cellular network.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN.

The multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system and NR (New Radio) system. Additional spatial degrees of freedom are obtained by configuring multiple antennas at a communication node, such as a base station or a UE (User Equipment). The plurality of antennas form a beam pointing to a specific direction through beam forming to improve communication quality. When a plurality of antennas belong to a plurality of TRP (Transmitter Receiver Point)/panel, an additional diversity gain can be obtained by using a spatial difference between different TRPs/panels. The beams formed by multi-antenna beamforming are generally narrow, and the beams of both communication parties need to be aligned for effective communication. When the transmission/reception beams are out of synchronization due to UE movement, the communication quality will be greatly reduced or even communication is impossible, so the beams need to be updated in time.

Disclosure of Invention

Work Items (WI) of NR R17 are passed through a 3GPP RAN (Radio Access Network) #86 full meeting, which includes enhanced multi-TRP transmission to support an HST (high speed train) -SFN (Single Frequency Network) scenario. The inventors have discovered through research that in an HST-SFN scenario, the main challenges encountered by signal transmission include the effect of doppler shift on receiver performance due to high speed mobility. Moreover, because different TRPs have different directions relative to the UE, the doppler frequency shifts generated at the UE receiver by signals transmitted from different TRPs are different, and the UE receiver will receive multiple copies of signals with different center frequency points, which brings difficulty to the reception of signals.

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 scenario as an example, the present application is also applicable to other scenarios such as LTE multi-antenna system, medium and low speed mobile scenario, and achieves similar technical effects in beamforming and HST-SFN scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to beamforming, HST-SFN scenario, LTE multi-antenna system and medium and low speed mobile scenario) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in any node of the present application may be applied to any other node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

As an example, the term (telematics) in the present application is explained with reference to the definition of the specification protocol TS36 series of 3 GPP.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS38 series.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS37 series.

As an example, the terms in the present application are explained with reference to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers).

The application discloses a method in a first node used for wireless communication, characterized by 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 characteristics of the above method include: the first wireless signal is sent by Q1 TRPs in SFN, and the Q1 transmission configuration parameters are respectively used by the Q1 TRPs for sending the first wireless signal; the Q1 Reference signals are Tracking Reference Signals (TRS) respectively transmitted by the Q1 TRPs; the first type of relationship includes a quasi co-location relationship of doppler shifts, and the second type of relationship does not include a quasi co-location relationship of multi-spectral shifts.

As an embodiment, the characteristics of the above method include: the first reference signal is not subjected to Doppler shift pre-compensation, and any one of the Q1 reference signals except the first reference signal is subjected to Doppler pre-compensation, wherein the purpose of the Doppler pre-compensation is to enable the center frequencies of the Q1 first wireless signals respectively transmitted by the Q1 TRPs to be the same at the receiver of the first node.

As an embodiment, the characteristics of the above method include: the first reference signal is used to determine a reception frequency, and any one of the Q1 reference signals other than the first reference signal is not used to determine a reception frequency.

As an embodiment, the characteristics of the above method include: the Q1 transmission configuration parameters are associated with Q1 transmit beams, respectively.

As an embodiment, the characteristics of the above method include: the Q1 transmission configuration parameters are associated to Q1 TRPs, respectively.

As an example, the benefits of the above method include: when the first wireless signals are sent by Q1 TRPs in an SFN manner, one TRP of the Q1 TRPs is used as an anchor point of a receiving frequency, and other TRPs respectively carry out Doppler frequency shift pre-compensation according to Doppler frequency shifts associated with the TRPs, so that the center frequency points of the Q1 first wireless signals sent by the Q1 TRPs respectively at a receiver of the first node are aligned, and the receiver performance of an HST-SFN scene is facilitated.

As an 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 independent of other reference signals except the first reference signal in the Q1 reference signals, a receiver does not need to process the receiving signals with different center frequencies from different TRPs, and the receiver complexity is low.

According to an aspect of the present application, the method is characterized in that, when the first time duration is smaller than the first time threshold, the first reference signal is a reference signal determined by the transmission configuration parameter with the smallest number in the Q1 transmission configuration parameters.

As an embodiment, the characteristics 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 parameter comprised by the second information block.

As an embodiment, the characteristics of the above method include: the first time threshold is a minimum time interval from the first node receiving the second information block to being able to apply the first type of relationship indicated by the transmission configuration parameter comprised by the second information block.

As an example, the benefits of the above method include: when the first time length is not enough to apply the transmission configuration parameters included in the second information block, the reference signal determined by the transmission configuration parameter with the smallest number in the Q1 transmission configuration parameters is selected according to a default rule to be used for determining the receiving frequency, so that the condition that the receiving frequency cannot be determined is avoided.

According to one aspect of the application, the method described above is characterized by comprising:

receiving a second wireless signal, the second wireless signal being started to be transmitted before a start time of the first set of time-frequency resources.

Wherein Q2 transmission configuration parameters are used in common 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 relationship; when the first length of time is less than the first time threshold, the number of the Q2 transmission configuration parameters of the transmission configuration parameters with which the second reference signal is associated is used to determine the first reference signal from the Q1 reference signals.

As an embodiment, the characteristics of the above method include: the second wireless signal is a wireless signal transmitted in the SFN system that is the closest one before the first wireless signal.

As an example, the benefits of the above method include: when the first time length is not enough 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 by the latest wireless signal sent in the SFN before the first wireless signal for determining the receiving frequency, so that on one hand, the latest channel state can be reflected, and on the other hand, due to the fact that the configuration of the second wireless signal is used, the reconfiguration of the receiving frequency can be avoided, and the requirement on hardware is reduced.

According to an aspect of the application, the above method is characterized in that 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 for determining the first reference signal from the Q1 reference signals.

As an embodiment, the characteristics of the above method include: when the first length of time is sufficient to apply the transmission configuration parameters included in the second information block, the first reference signal is indicated by first indication information included in the second information block.

As an 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 device can select any one of the Q1 reference signals as the first reference signal according to the current channel characteristics, so that the scheduling freedom of the network device is improved, and the system performance is improved.

According to one aspect of the present application, the method is characterized in that the first type of relationship comprises a doppler shift quasi co-location relationship; the second type of relationship does not include a doppler shift quasi co-location relationship.

According to an aspect of the present application, the method above is characterized in that the first information block is used to determine Q3 sets of transmission configuration parameters, any one of the Q3 sets of transmission configuration parameters includes Q4 sets of transmission configuration parameters, Q3 is a positive integer greater than 1, and Q4 is a positive integer; when the first time length is smaller than the first time threshold, the first transmission configuration parameter group is the transmission configuration parameter group with the smallest number, including Q1 transmission configuration parameters, in the Q3 transmission configuration parameter groups.

According to an aspect of the present application, the method is characterized in that the first reference signal is used to determine a receiving frequency for receiving the first wireless signal, and none of the Q1 reference signals other than the first reference signal is used to determine the receiving frequency for receiving the first wireless signal.

The application discloses a method in a second node used for wireless communication, characterized by comprising:

transmitting a first information block and a 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;

transmitting a second wireless signal, the second wireless signal being started to be transmitted before a start time of the first set of time-frequency resources.

The present application discloses a first node for wireless communication, comprising:

a first receiver receiving 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;

The present application discloses a second node for wireless communication, comprising:

a first transmitter for transmitting the first information block and the 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;

As an example, the present application has the following advantages:

when the wireless signals are transmitted to the UE from a plurality of TRPs in SFN manner, it is supported to dynamically select one TRP from the plurality of TRPs as an anchor point of a receiving frequency, and the wireless signals transmitted by other TRPs are doppler pre-compensated, so that the wireless signals transmitted by the plurality of TRPs can be aligned to the same frequency at the receiver of the UE, which is beneficial to resisting doppler shift and improving the performance of the receiver;

when the time interval between the PDSCH in SFN mode and the PDCCH scheduling the PDSCH is not enough for the UE to apply the transmission configuration parameters indicated by the PDCCH, the UE selects, by using a default rule, the TRS associated with the transmission configuration parameter with the smallest number from a plurality of transmission configuration parameters included in the transmission configuration parameter group for determining the receiving frequency, so as to avoid uncertainty of the receiving frequency due to processing delay;

when the time interval between the PDSCH in SFN mode and the PDCCH scheduling the PDSCH is not enough for the UE to apply the transmission configuration parameters indicated by the PDCCH, the UE selects one TRS from the TRSs of multiple TRPs for determining the receiving frequency according to the configuration of the last SFN-based PDSCH, and since the channel change has continuity, the current state of the channel can be better reflected;

when the time interval between the PDSCH in the SFN manner and the PDCCH for scheduling the PDSCH is enough to enable the UE to apply the transmission configuration parameters indicated by the PDCCH, the UE selects one TRS from the TRSs of the TRPs to be used for determining the receiving frequency according to the indication of the dynamic signaling, so that the scheduling flexibility of the base station can be improved, and the system performance can be improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

FIG. 1 illustrates a process flow diagram of a first node of one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

FIG. 5 shows a wireless signal transmission flow diagram according to an embodiment of the present application;

fig. 6 shows a schematic diagram of SFN transmission according to an embodiment of the present 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 pre-compensation in an SFN scenario according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a time relationship 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 diagram illustrating 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 arrangement for use in the first node;

fig. 13 shows a block diagram of a processing means for use in the second node.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node according to an 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 blocks does not represent a particular chronological relationship between the various 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 comprises Q1 transmission configuration parameters, the Q1 transmission configuration parameters are used in common for reception of the first wireless signal, the Q1 is a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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.

For 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 on a SideLink (SideLink).

As one embodiment, the first wireless signal is transmitted on an UpLink (UpLink).

For one embodiment, the first wireless signal is transmitted on a DownLink (DownLink).

For one embodiment, the first wireless signal is transmitted on a Backhaul link (Backhaul).

As an embodiment, the first wireless signal is transmitted over a Uu interface.

As one example, the first wireless signal is transmitted through a PC5 interface.

As an embodiment, the first wireless signal carries a Transport Block (TB).

As an embodiment, the first wireless signal carries one CB (Code Block).

As an embodiment, the first wireless signal carries a CBG (Code Block Group).

For one embodiment, the first wireless signal includes control information.

As an embodiment, the first wireless signal includes SCI (Sidelink Control Information).

For one embodiment, the first wireless signal includes one or more fields in a SCI.

For one embodiment, the first wireless signal includes one or more fields in a SCI format.

As an embodiment, the first wireless signal includes UCI (Uplink Control Information).

For one embodiment, the first wireless signal includes one or more fields in a UCI.

For one embodiment, the first wireless signal includes one or more fields in a UCI format.

As an embodiment, the first wireless signal includes DCI (Downlink Control Information).

For one embodiment, the first wireless signal includes one or more fields in one DCI.

For one embodiment, the first wireless signal includes one or more fields in one DCI format.

As one embodiment, the first wireless signal includes a Physical Uplink Shared Channel (PUSCH).

As an embodiment, the first wireless signal includes a Physical Uplink Control Channel (PUCCH).

As an embodiment, the first wireless signal includes a Physical Downlink Shared Channel (PDSCH).

As an embodiment, the first wireless signal includes a Physical Downlink Control Channel (PDCCH).

As an embodiment, the first wireless signal includes a Physical Sidelink Control Channel (PSCCH).

As one embodiment, the first wireless signal includes a Physical Sidelink Shared Channel (psch).

As an embodiment, the first wireless signal includes a 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 includes a reference signal.

For one embodiment, the first wireless signal includes an uplink reference signal.

For one embodiment, the first wireless signal includes a downlink reference signal.

For one embodiment, the first wireless signal includes a secondary link reference signal.

As one embodiment, the first wireless Signal includes a Demodulation Reference Signal (DMRS).

As one embodiment, the first wireless Signal includes a Channel State Information Reference Signal (CSI-RS).

For one embodiment, the first wireless Signal includes a Phase Tracking Reference Signal (PTRS).

As one embodiment, the first wireless Signal includes a Tracking Reference Signal (TRS).

As one embodiment, the first wireless Signal includes a Positioning Reference Signal (PRS).

As one embodiment, the first wireless Signal includes a Sounding Reference Signal (SRS).

As one embodiment, the first wireless signal includes an uplink signal Configured with a Grant (Configured Grant).

For one embodiment, the first wireless signal includes a dynamically scheduled uplink signal.

For one embodiment, the first wireless signal includes a semi-statically scheduled uplink signal.

As one embodiment, the first wireless signal includes a Configured granted PUSCH (CG-PUSCH).

As one embodiment, the first wireless signal comprises a dynamically scheduled PUSCH.

As one embodiment, the first wireless signal includes a semi-statically scheduled PUSCH.

As one embodiment, the first wireless signal includes a group Common pdcch (group Common pdcch).

As one embodiment, the first wireless signal is transmitted in an SFN.

As one embodiment, the first wireless signal is transmitted by Q1 TRPs.

As one embodiment, the first wireless signal is transmitted by Q1 TRPs in the first set of time frequency resources.

For one embodiment, the first wireless signal is transmitted in the first set of time-frequency resources by Q1 transmit beams.

For one embodiment, the first wireless signal is transmitted by the Q1 transmission configuration parameters in the first set of time-frequency resources.

As an embodiment, the first wireless signals respectively transmitted by the Q1 TRPs are the same.

As an embodiment, the Q1 transmission configuration parameters respectively send the same first wireless signal.

As an embodiment, the first wireless signal includes a first transmission block and a first type of reference signal, the first transmission blocks respectively included in the first wireless signal respectively sent by any 2 of the Q1 transmission configuration parameters are the same, and the first type of reference signal respectively included in the first wireless signal respectively sent by any 2 of the Q1 transmission configuration parameters are different.

As a sub-embodiment of the foregoing embodiment, the first type 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 comprises a PDSCH.

As a sub-embodiment of the above embodiment, the first transport block comprises a PDCCH.

As a sub-embodiment of the above embodiment, the first transport block comprises PUSCH.

As a sub-embodiment of the above embodiment, the first transport block comprises 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 type of reference signal comprises a DMRS.

As a sub-embodiment of the above-mentioned embodiments, the first type of reference signal includes CSI-RS.

As a sub-embodiment of the above embodiment, the first type of reference signal comprises a TRS.

As a sub-embodiment of the above embodiment, the first type of reference signal comprises a PTRS.

As an embodiment, any one 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 a tci (transmission configuration indicator).

As an embodiment, any one of the Q1 transmission configuration parameters includes a TCI state (TCI state).

As an embodiment, any one of the Q1 transmission configuration parameters includes a TCI code point (TCI code point).

As an embodiment, the first set of transmission configuration parameters includes a TCI Codepoint (TCI Codepoint).

As an embodiment, any one of the Q1 transmission configuration parameters includes a Spatial correlation (Spatial relationship) parameter.

As an embodiment, any one of the Q1 transmission configuration parameters includes a QCL (Quasi co-location) parameter.

As an embodiment, any one of the Q1 transmission configuration parameters is used for determining a transmission beam.

As an embodiment, any one of the Q1 transmission configuration parameters is used for determining a 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 receive filter.

As an embodiment, any one of the Q1 transmission configuration parameters is used to determine a Spatial correlation (Spatial correlation) relationship with a reference signal.

As an embodiment, any one of the Q1 transmission configuration parameters is used to determine a QCL relationship with a reference signal.

As a sub-embodiment of the above-mentioned embodiments, the one reference signal includes one of { SSB, CSI-RS, TRS, SRS, PTRS, DMRS }.

For one embodiment, the QCL parameters include a QCL type.

For one embodiment, the QCL parameters include a QCL association with another signal.

For one embodiment, the QCL parameters include a Spatial correlation (Spatial relationship) relationship with another signal.

As an embodiment, the specific definition of QCL is seen in section 5.1.5 in 3GPP TS 38.214.

As an embodiment, the QCL association of one signal and another signal refers to: all or part of large-scale (properties) characteristics of a wireless signal transmitted on an antenna port corresponding to the other signal can be deduced from all or part of large-scale (properties) characteristics of a wireless signal transmitted on an antenna port corresponding to the one signal.

As an example, 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), and Spatial Rx parameters }.

As one embodiment, the Spatial Rx parameters (Spatial Rx parameters) include one or more of { receive beams, receive analog beamforming matrix, receive analog beamforming vector, receive Spatial filtering (Spatial filter), Spatial domain reception filtering (Spatial domain reception filter) }.

As an embodiment, the QCL association of one signal and another signal refers to: the one signal and the other signal have at least one same QCL parameter (QCL parameter).

As an embodiment, the QCL parameters include: { 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 Rx parameters }.

As an embodiment, the QCL association of one signal and another signal refers to: at least one QCL parameter of the other signal can be inferred from the at least one QCL parameter of the one signal.

As an embodiment, the QCL type (QCL type) between one signal and another signal being QCL type D (QCL-type) means: the Spatial Rx parameters (Spatial Rx parameters) of the wireless signal transmitted on the antenna port corresponding to the other signal can be inferred from the Spatial Rx parameters (Spatial Rx parameters) of the wireless signal transmitted on the antenna port corresponding to the one signal.

As an embodiment, the QCL type between one signal and another signal is QCL type a (QCL-type a) means: the delay spread (delay spread), the Doppler spread (Doppler spread), the Doppler shift (Doppler shift), and the average delay (average delay)) of the wireless signal transmitted through the antenna port corresponding to the other signal can be deduced from the delay spread (delay spread), the Doppler spread (Doppler spread), the Doppler shift (Doppler shift), and the average delay (average delay)) of the wireless signal transmitted through the antenna port corresponding to the other signal.

As an embodiment, the QCL type between one signal and another signal being QCL type E (QCL-type) means: the delay spread (delay spread), the average delay (average delay)) of the wireless signal transmitted on the antenna port corresponding to the other signal can be deduced from the delay spread (delay spread), the average delay (average delay)) of the wireless signal transmitted on the antenna port corresponding to the one signal.

As an embodiment, the QCL type (QCL type) between one signal and another signal being QCL-type means: the one reference signal and the other reference signal can be received with the same Spatial Rx parameters (Spatial Rx parameters).

As an example, the Spatial correlation (Spatial relationship) relationship of one signal and another signal refers to: transmitting the other signal with a spatial filter that receives the one signal.

As an example, the Spatial correlation (Spatial relationship) relationship of one signal and another signal refers to: receiving the other signal with a spatial filter that transmits the one signal.

As an embodiment, the Q1 transmission configuration parameters are used by Q1 TRPs, respectively, to transmit the first wireless signal.

For one embodiment, the first type of relationship comprises a QCL relationship.

For one embodiment, the first type of relationship comprises QCL type a.

For one embodiment, the first class of relationships includes a first class of QCL relationships that include large-scale features including doppler shift.

For one embodiment, the first class of relationships includes a first class of QCL relationships that include large-scale features including doppler spread.

As an embodiment, the sentence "having a first type of relationship between the first wireless signal and 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 "having a first type of relationship between the first wireless signal and 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 "having a first type of relationship between the first wireless signal and the first reference signal" includes that the first reference signal is used for determining a doppler shift of the first wireless signal.

As an embodiment, the sentence "having a first type of relationship between the first wireless signal and the first reference signal" comprises that the first reference signal is used for determining a doppler spread of the first wireless signal.

As an embodiment, the sentence "there is a first kind of relationship between the first wireless signal and the first reference signal" includes that the receiving frequencies of the first reference signal and the first wireless signal are the same.

As an embodiment, the sentence "there is a first kind of relationship between the first wireless signal and the first reference signal" includes that the transmission frequencies of the first reference signal and the first wireless signal are the same.

As an embodiment, the sentence "having a first type of relationship between the first wireless signal and the first reference signal" includes that the doppler shift of the first reference signal and the first wireless signal is the same.

As an embodiment, the sentence "having a first type of relationship between the first wireless signal and the first reference signal" includes that the doppler spreads of the first reference signal and the first wireless signal are the same.

As an embodiment, the sentence "there is a first kind of relationship between the first wireless signal and the first reference signal" includes that a deviation of the receiving frequencies of the first reference signal and the first wireless signal is F1 hz, and the 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 self-determined by the first node.

As an embodiment, the sentence "there is a first kind of relationship between the first wireless signal and the first reference signal" includes that a deviation of the 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 self-determined by the first node.

For one embodiment, the second type of relationship comprises a QCL relationship.

For one embodiment, the second type of relationship comprises QCL type E.

For one embodiment, the second type of relationship comprises a second type of QCL relationship that includes large-scale features that do not include doppler shift.

For one embodiment, the second type of relationship comprises a second type of QCL relationship that includes large-scale features that do not include doppler spread.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 for determining the reception frequency of the first wireless signal.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 for determining the transmission frequency of the first wireless signal.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 for determining the doppler shift of the first wireless signal.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 for determining doppler spread of the first wireless signal.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 wireless signal have different receiving frequencies.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 wireless signal are transmitted at different frequencies.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless signal and one of the Q1 reference signals other than the first reference signal" includes that the doppler shift of the one of the Q1 reference signals other than the first reference signal and the first wireless signal are different.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless signal and one of the Q1 reference signals other than the first reference signal" includes that the doppler spread of the one of the Q1 reference signals other than the first reference signal and the first wireless signal is different.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless 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 for determining a spatial reception filter of the first wireless signal.

As an embodiment, the sentence "there is a second kind of relationship between the first wireless signal and one of the Q1 reference signals other than the first reference signal" includes that, if the QCL parameters included in the second kind of relationship include doppler shift, the doppler shift included in the QCL parameters included in the second kind of relationship is not used for receiving the first wireless signal.

As an embodiment, the sentence "there is a second type of relationship between the first wireless signal and one of the Q1 reference signals other than the first reference signal" includes that, if doppler spread is included in QCL parameters included in the second type of relationship, the doppler spread included in QCL parameters included in the second type of relationship is not used for receiving the first wireless signal.

As an embodiment, the sentence "the Q1 transmission configuration parameters are collectively used for reception of the first wireless signal" includes: the Q1 transmission configuration parameters are used to determine a first spatial receive filter used to receive the first wireless signal.

As an embodiment, the sentence "the Q1 transmission configuration parameters are collectively 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 collectively used for reception of the first wireless signal" includes: the first node receives the first wireless signal with Q1 transmission configuration parameters in SFN mode.

As an embodiment, the sentence "the Q1 transmission configuration parameters are collectively 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 a frequency domain.

As an embodiment, the first set of time-frequency resources includes a positive integer number of Resource Blocks (RBs) in a frequency domain.

As an embodiment, the first set of time-frequency resources includes a positive integer number of Resource Block Groups (RBGs) in a frequency domain.

As an embodiment, the first set of time and frequency resources includes a positive integer number of Control Channel Elements (CCEs) in a frequency domain.

As an embodiment, the first set of time-frequency resources includes a positive integer number of multicarrier symbols in the time domain.

For one embodiment, the first set of time-frequency resources includes a positive integer number of time slots in the time domain.

As one embodiment, the first set of time-frequency resources includes a positive integer number of subframes in a 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 non-contiguous resource blocks in the frequency domain.

As an embodiment, the first Information block includes SCI (Sidelink Control Information).

For one embodiment, the first information block includes one or more fields in a SCI.

For one embodiment, the first information block includes one or more fields in an SCI format.

As an embodiment, the first Information block includes UCI (Uplink Control Information).

For one embodiment, the first information block includes one or more fields in one 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 (Downlink Control Information).

For one 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 one embodiment, the first information block includes one or more fields in MAC layer signaling.

As an embodiment, the first information block includes a MAC-CE (MAC Control Element).

As one embodiment, the first information block includes one or more fields in RRC signaling.

As an embodiment, the second Information block includes SCI (Sidelink Control Information).

For one embodiment, the second information block includes one or more fields in a SCI.

For one embodiment, the second information block includes one or more fields in an SCI format.

As an embodiment, the second Information block includes UCI (Uplink Control Information).

For one embodiment, the second information block includes one or more fields in one 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 (Downlink Control Information).

For one 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 one embodiment, the second information block includes 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 fields in RRC signaling.

As an embodiment, any one of the Q1 reference signals includes an SSB.

As an embodiment, any one of the Q1 reference signals includes CSI-RS.

As an embodiment, any one of the Q1 reference signals includes an SRS.

As one embodiment, any one of the Q1 reference signals includes a DMRS.

As an embodiment, any one of the Q1 reference signals includes a TRS.

As one embodiment, any one of the Q1 reference signals includes a PTRS.

As an embodiment, any one of the Q2 reference signals includes an SSB.

As an embodiment, any one of the Q2 reference signals includes CSI-RS.

As an embodiment, any one of the Q2 reference signals includes an SRS.

As one embodiment, any one of the Q2 reference signals includes a DMRS.

As an embodiment, any one of the Q2 reference signals includes a TRS.

As one embodiment, any one of the Q2 reference signals includes a 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 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System )/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 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 (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to 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. The gNB203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the first node in this application includes the gNB 203.

As an embodiment, the second node in this application includes the gNB 203.

As an embodiment, the second node in this application includes the UE 241.

As an embodiment, the first node in this application includes the UE 241.

As an embodiment, the second node in the present application includes the UE 201.

As an embodiment, the second node in this application includes the gNB 204.

As an embodiment, the UE201 is included in the user equipment of the present application.

As an embodiment, the UE241 is included in the user equipment in this application.

As an embodiment, the base station apparatus in this application includes the gNB 203.

As an embodiment, the base station device in this application includes the gNB 204.

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.

For one 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 for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first node (RSU in UE or V2X, car equipment or car communication module) and the second node (gNB, RSU in UE or V2X, car equipment or car communication module) or the control plane 300 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 PHY 301. Layer 2(L2 layer) 305 is above the PHY301, and is responsible for the links between the first and second nodes and the two UEs through the PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data 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 a second node by a first node. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of missing packets by ARQ, and the RLC sublayer 303 also provides duplicate 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 between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) 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), the radio protocol architecture in the user plane 350 for the first and second nodes 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 packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. 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., far end UE, server, etc.).

As an example, the wireless protocol architecture in fig. 3 is applicable to the first node in this application.

As an example, the radio protocol architecture in fig. 3 is applicable to the second node in this application.

As an embodiment, the first wireless signal in this application is generated in the PHY 351.

As an example, the first wireless signal in this application is generated in the MAC 352.

As an example, the first wireless signal in this application is generated in the PHY 301.

As an example, the first wireless signal in this application is generated in the MAC 302.

As an embodiment, the first radio signal in this application is generated in the RRC 306.

As an embodiment, the first information block in this application is generated in the PHY 351.

As an embodiment, the first information block in this application is generated in the MAC 352.

As an embodiment, the first information block in the present application is generated in the PHY 301.

As an embodiment, the first information block in this application is generated in the MAC 302.

As an embodiment, the first information block in this application is generated in the RRC 306.

As an embodiment, the second information block in this application is generated in the PHY 351.

As an embodiment, the second information block in this application is generated in the MAC 352.

As an embodiment, the second information block in this application is generated in the PHY 301.

As an embodiment, the second information block in this application is generated in the MAC 302.

As an embodiment, the second information block in this application is generated in the RRC 306.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

The first communications device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

The second communications 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, at the first communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In transmissions from the first communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communications 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., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450 and mapping of signal constellation 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 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, 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 the physical channels carrying the time-domain multicarrier symbol streams. 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 multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the first communications device 410 to the second communications device 450, at the second communications device 450, each receiver 454 receives a signal 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 multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of 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. Receive processor 456 converts the baseband multicarrier symbol stream after the receive 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 signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communications device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality 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 transmissions from the first communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In a transmission from the second communications device 450 to the first communications device 410, a data source 467 is used at the second communications 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 function at the first communications apparatus 410 described in the transmission from the first communications apparatus 410 to the second communications apparatus 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to said first communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the transmit processor 468 then modulates the resulting spatial streams into multi-carrier/single-carrier symbol streams, which are provided to different antennas 452 via a transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. 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 the radio frequency symbol stream to the antenna 452.

In a transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality 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 an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmissions from the second communications device 450 to the first communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first node in this application includes the second communication device 450, and the second node in this application includes the first communication device 410.

As an embodiment, the first node in this application includes the first communication device 410, and the second node in this application includes the second communication device 450.

As an embodiment, the first node in this application includes the second communication device 450, and the second node in this application includes the second communication device 450.

As a sub-embodiment of the above-described 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-described 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-described embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocols 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 apparatus 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 result in actions 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 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 a first information block and a 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a first information block and a 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 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 may be utilized to receive the first wireless signal as described herein.

As one example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the first wireless signal in the present application.

As one 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 may be utilized to receive the second wireless signal as described herein.

As one example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the second wireless signal in the present application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In FIG. 5, communication between the first node U1 and the second node U2 is over an air interface. In fig. 5, the order of the steps in the blocks does not represent a specific chronological relationship between the individual steps.

For theFirst node U1The second wireless 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 wireless signal is received in step S14.

For theSecond node U2The second wireless 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 wireless signal is transmitted in step S24. Among them, step S21 and step S11 included in the broken-line 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 used in common 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 relationship; when the first length of time is less than the first time threshold, the number of the Q2 transmission configuration parameters of the transmission configuration parameters with which the second reference signal is associated is used to determine the first reference signal from the Q1 reference signals.

For one embodiment, the air interface between the second node U2 and the first node U1 includes a PC5 interface.

For one embodiment, the air interface between the second node U2 and the first node U1 includes a sidelink.

For one embodiment, the air interface between the second node U2 and the first node U1 comprises a Uu interface.

For one embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

For one embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between user equipment and user equipment.

For one embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between a base station device and a user equipment.

Example 6

Embodiment 6 illustrates a schematic diagram of SFN transmission according to an embodiment of the present application, as shown in fig. 6. In fig. 6, TRP1 and TRP2 simultaneously transmit wireless signals to a UE. Wherein, the TRP1 transmits a wireless signal to the UE through the transmission beam 1, and the TRP2 transmits a wireless signal to the UE through the transmission beam 2. In embodiment 6, the first transmission configuration parameter set in this application includes 2 transmission configuration parameters, and the 2 transmission configuration parameters are respectively used for determining the transmission beam 1 and the transmission beam 2. In example 6, SFN and multi-TRP space division multiplexing are different in that: in the SFN mode, for the UE, the antenna ports of the TRP1 and TRP2 transmitting wireless signals are the same, and the wireless signals transmitted by the TRP1 and TRP2 are the same; in the multi-TRP spatial multiplexing mode, antenna ports of TRP1 and TRP2 for transmitting wireless signals are different, and wireless signals transmitted by TRP1 and TRP2 may be different.

As an example, Q1 is 2.

As an embodiment, the Q1 transmission configuration parameters are used by Q1 third nodes, respectively, to transmit the first wireless signal.

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 foregoing embodiment, the third node includes an RRU (Remote Radio Unit).

As a sub-embodiment of the above embodiment, the third node includes an RRH (Remote Radio Head).

As a sub-embodiment of the above embodiment, the third node comprises an AAU (Active Antenna Unit).

As a sub-embodiment of the above embodiment, the third node comprises a BBU (BaseBand Unit).

As a sub-embodiment of the above embodiment, the third node comprises a gNB.

For one embodiment, the second node includes Q1 of the third nodes.

As an embodiment, the second information block includes second indication information used to determine that the transmission mode of the first wireless signal is SFN.

For 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 an embodiment of the present application, as shown in fig. 7. In fig. 7, TRP1 and TRP2 simultaneously transmit wireless signals to a UE located in a high speed train. In embodiment 7, the TRP1 transmits a first reference signal and a first wireless signal to a UE located in a high speed train, and the TRP2 transmits a third reference signal and a first wireless signal to a UE located in a high speed train. In embodiment 7, the third reference signal is one of the Q1 reference signals in the present application other than the first reference signal.

As an embodiment, the first reference signal is used for tracking of reception timing and 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 of the Q1 reference signals except for the first reference signal.

As an embodiment, the third reference signal is used for tracking of reception timing and reception frequency.

As an embodiment, the third reference signal is indicative of a configuration parameter trs-Info.

As an embodiment, the first reference signal and the third reference signal are both CSI-RSs.

As an embodiment, the first reference signal and the third reference signal are both DMRS.

As one embodiment, the first reference signal and the third reference signal are both DMRSs of the first wireless signal.

As one embodiment, the first reference signal and the third reference signal are orthogonal in the time-frequency domain.

In one embodiment, the first reference signal is not doppler pre-compensated and the third reference signal is doppler pre-compensated.

As an embodiment, the first reference signal and the third reference signal are both doppler pre-compensated.

As an embodiment, neither the first reference signal nor the third reference signal is doppler pre-compensated.

Example 8

Embodiment 8 illustrates a schematic diagram of doppler shift pre-compensation in an SFN scenario according to an 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 wireless signals respectively transmitted by two TRPs at the UE receiver without doppler shift pre-compensation, wherein the vertical and horizontal striped filled boxes show a schematic diagram of the frequency ranges occupied by the two wireless signals respectively transmitted by TRP1 and TRP2 at the UE receiver; the center frequency corresponding to the wireless signal transmitted by the TRP1 is f0+ fd1, and the center frequency corresponding to the wireless signal transmitted by the TRP2 is f0+ fd 2; wherein f0 represents the center transmission frequency of TRP1 and TRP2 (i.e. the center transmission frequency of TRP1 and TRP2 are the same), fd1 represents the Doppler shift generated at the UE receiver by the wireless signal transmitted by TRP1, and fd2 represents the Doppler shift generated at the UE receiver by the wireless signal transmitted by TRP 2. In fig. 8, the right picture shows a schematic diagram of frequency ranges occupied by two wireless signals transmitted by two TRPs after doppler shift pre-compensation at the UE receiver, wherein the frequency ranges of the wireless signals transmitted by TRP1 and TRP2 at the UE receiver are overlapped, and their center frequencies are both f0+ fd3, where fd3 shows residual frequency offset after doppler shift pre-compensation. The f0, f1, f2 and f3 are real numbers in hertz.

As an example, the fd3 is equal to the fd 1.

As an example, when doppler pre-compensation is employed, the first wireless signal transmitted by TRP1 is not pre-compensated; the first wireless signal transmitted by the TRP2 is pre-compensated with a frequency offset of fd1-fd 2.

As an embodiment, when Doppler pre-compensation is adopted, 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 transmit 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 transmit frequency of the first reference signal.

As an embodiment, when doppler pre-compensation is used, the first wireless signals respectively transmitted by TRP1 and TRP2 are pre-compensated.

As an example, when the doppler pre-compensation is used, the transmission center frequency point of the first wireless signal transmitted by the TRP1 is fb-f1, and the transmission center frequency point of the first wireless signal transmitted by the TRP2 is fb-f2, where fb 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 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-implementation of the above embodiment, the fb is equal to the sum of the central transmit frequency of the first reference signal and a frequency offset, which is a real number in hertz.

For one embodiment, the first type of relationship comprises a doppler shift quasi co-location relationship; the second type of relationship does not include a doppler shift quasi co-location relationship.

For one embodiment, the phrase "the first class of relationships include doppler shift quasi co-location relationships" includes that the first class of relationships includes a first quasi co-location relationship that includes a large scale feature including doppler shift.

For one embodiment, the phrase "the second type of relationship does not include a doppler shift quasi co-location relationship" includes that the second type of relationship includes a second quasi co-location relationship that includes large scale features that do not include a doppler shift.

Example 9

Embodiment 9 illustrates a schematic diagram of a time relationship between a second information block and a first wireless signal according to an embodiment of the present application, as shown in fig. 9. In fig. 9, two white filled boxes represent schematic diagrams of 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-off 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.

As an embodiment, the phrase "the length of the time interval between the receiving time of the second information block and the receiving time of the first set of time-frequency resources" in this application includes: a length of a time interval between a reception ending time of the second information block and a reception starting time of the first set of time-frequency resources.

As an embodiment, the phrase "the length of the time interval between the receiving time of the second information block and the receiving time of the first set of time-frequency resources" in this 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 "the length of the time interval between the receiving time of the second information block and the receiving time of the first set of time-frequency resources" in this 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 "the length of the time interval between the receiving time of the second information block and the receiving time of the first set of time-frequency resources" in this application includes: a length of a time interval between an expiration time of reception of the second information block and an expiration time of reception of the first set of time-frequency resources.

As an embodiment, the phrase "the length of the time interval between the receiving time of the second information block and the receiving time of the first set of time-frequency resources" in this application includes: and the length of the time interval between the receiving end time of the time slot of the second information block and the receiving start time of the first time-frequency resource set.

As an embodiment, the phrase "the length of the time interval between the receiving time of the second information block and the receiving time of the first set of time-frequency resources" in this application includes: the length of the time interval between the receiving end time of the time slot of the second information block and the receiving start time of the time slot of the first time-frequency resource set.

As a sub-embodiment of the foregoing embodiment, the reception start time of the second information block is a time when reception of the first multicarrier symbol of the second information block is started.

As a sub-embodiment of the foregoing 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 receiving start time of the first set of time and frequency resources is a time when the first multicarrier symbol of the first set of time and frequency resources starts to be received.

As a sub-embodiment of the foregoing embodiment, the reception deadline time of the first set of time and frequency resources is a time when reception of a last multicarrier symbol of the first set of time and frequency resources is completed.

As one 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 one embodiment, the multicarrier symbol comprises an OFDM symbol.

For one embodiment, the multicarrier symbols comprise DFT-s-OFDM symbols.

As one embodiment, the multicarrier symbols comprise SC-FDMA symbols.

For one embodiment, the first time threshold comprises a positive integer number of time slots.

As an embodiment, the second information block indicates the first transmission configuration parameter set.

As an embodiment, the first time threshold comprises a minimum time required to receive the second information block and to apply the first transmission configuration parameter set 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 being able to apply the first transmission configuration parameter set indicated by the second information block.

As an embodiment, the first time threshold comprises a minimum time required for the first transmission configuration parameter set indicated by the second information block to be applicable from the reception of the last multicarrier symbol occupied by the second information block.

As an embodiment, the first time threshold includes a shortest time interval required to receive one PDCCH and apply QCL configuration parameters indicated in the one PDCCH.

As an embodiment, the first time threshold includes a minimum time required from a first multicarrier symbol occupied by starting to receive one PDCCH to being able to apply the QCL configuration parameters indicated by the one PDCCH.

As an embodiment, the first time threshold includes a minimum time required to apply the QCL configuration parameters indicated by one PDCCH from the reception of the last multicarrier symbol occupied by the one PDCCH.

As an embodiment, a subcarrier spacing of subcarriers occupied by the first wireless signal in a frequency domain is used for determining 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 timeduration for qcl 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 the Q1 reference signals.

As one embodiment, the first indication information implicitly indicates the first reference signal from the Q1 reference signals.

As an embodiment, the first indication information is used to determine a plurality of reference signals, the number of which is 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 numbers of the plurality of transmission configuration parameters 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 a reference signal associated with a first transmission configuration parameter in 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 a reference signal included in the one transmission configuration parameter indicated by the first indication information.

As an embodiment, when the first time length is smaller than the first time threshold, the first reference signal is a reference signal determined by the smallest transmission configuration parameter of the Q1 transmission configuration parameters.

As a sub-embodiment of the foregoing embodiment, the "transmission configuration parameter with the smallest number in the Q1 transmission configuration parameters" refers to the first transmission configuration parameter in the Q1 transmission configuration parameters.

As a sub-embodiment of the foregoing embodiment, the transmission configuration parameter with the smallest number in the Q1 transmission configuration parameters is used to determine a plurality of reference signals, and the first reference signal is a reference signal of the plurality of reference signals, in which trs-Info is configured.

As a sub-embodiment of the foregoing embodiment, the transmission configuration parameter with the smallest number among 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 a time relationship between a second radio signal, a second information block and a first radio signal according to an embodiment of the present application, as shown in fig. 10. In fig. 10, three white filled boxes represent schematic diagrams of time domain resources occupied by the second wireless signal, the second information block, and the first wireless signal, respectively. In embodiment 10, the length of the time interval between the reception-off time of the second information block and the 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 radio signal is earlier than the reception start time of the first radio signal.

As one embodiment, the second wireless signal includes a PDSCH.

As one embodiment, the second wireless signal includes a PDCCH.

As one embodiment, the second wireless signal includes a DMRS.

As one embodiment, the second wireless signal includes PUSCH.

In one embodiment, the second wireless signal comprises a PUCCH.

For one embodiment, the second wireless signal includes an SRS.

For one embodiment, the second wireless signal includes a PSSCH.

For one embodiment, the second wireless signal comprises a PSCCH.

As one embodiment, the second wireless signal includes CSI-RS.

As one embodiment, the second wireless signal includes a PTRS.

As an embodiment, a time interval between the reception time of the second radio signal and the reception time of the first radio 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.

In one embodiment, the time of reception of the second wireless signal is earlier than the time of reception of the first wireless signal.

As an embodiment, the time of reception of the second radio signal is earlier than the time of reception of the second information block.

As a sub-embodiment of the above-mentioned embodiments, 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-described embodiment, the reception timing of the second wireless signal includes a reception cutoff timing of the second wireless signal.

As a sub-embodiment of the above-mentioned embodiments, 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-described embodiment, the reception timing of the first wireless signal includes a reception cutoff timing of the second wireless signal.

As a sub-embodiment of the above-mentioned embodiments, the reception time of the second information block includes a reception start time of the second radio signal.

As a sub-embodiment of the above-described embodiment, the reception timing of the second information block includes a reception cutoff timing of the second radio signal.

As an embodiment, the second wireless signal is a wireless signal transmitted by Q1 transmission configuration parameters the last time before the reception time of the first wireless signal.

In one embodiment, the second radio signal is a radio signal transmitted using the SFN system last before the reception time of the first radio signal.

As an embodiment, the second wireless signal is a wireless signal transmitted by the transmission configuration parameter having the first-class relationship the last time before the reception time of the first wireless signal;

q2 transmission configuration parameters are used in common 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 relationship; when the first length of time is less than the first time threshold, the number of the Q2 transmission configuration parameters of the transmission configuration parameters with which the second reference signal is associated is used to determine the first reference signal from the Q1 reference signals.

As an embodiment, when the first length of time 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 to a TRP, and the number of the transmission configuration parameters associated with the first reference signal in the Q1 transmission configuration parameters is associated to a 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 a 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 a 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 transmitting 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 to one TRP and the second packet index is associated to one TRP.

For one embodiment, when the first length of time is less than the first time threshold, the first packet index and the second packet index are the same.

As an embodiment, the transmission configuration parameter associated with the second reference signal is one of the Q2 transmission configuration parameters used for determining the second reference signal.

As an embodiment, the transmission configuration parameter associated with the first reference signal is one of the Q1 transmission configuration parameters used for determining the first reference signal.

As an embodiment, any one 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 a tci (transmission configuration indicator).

As an embodiment, any one of the Q2 transmission configuration parameters includes a TCI state (TCI state).

As an embodiment, any one of the Q2 transmission configuration parameters includes a TCI code point (TCI code point).

As an embodiment, any one of the Q2 transmission configuration parameters includes a Spatial correlation (Spatial relationship) parameter.

As an embodiment, any one of the Q2 transmission configuration parameters includes a QCL (Quasi co-location) parameter.

As an embodiment, any one of the Q2 transmission configuration parameters is used for determining a transmission beam.

As an embodiment, any one of the Q2 transmission configuration parameters is used for determining a 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 receive filter.

As an embodiment, any one of the Q2 transmission configuration parameters is used to determine a Spatial correlation (Spatial correlation) relationship with a reference signal.

As an embodiment, any one of the Q2 transmission configuration parameters is used to determine a QCL relationship with a reference signal.

Example 11

Embodiment 11 illustrates a plurality of transmission configuration parameter sets and schematic diagrams of transmission configuration parameters 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 sets of transmission configuration parameters, which are numbered sequentially and denoted by the numbers #1, #2, … …, # N, respectively. Wherein, any one of the N transmission configuration parameter groups 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 groups are also numbered sequentially, for example, transmission configuration parameter group #1 includes M1 transmission configuration parameters, and the numbers of the M1 transmission configuration parameters are #1, #2, # … …, # M1 sequentially; the transmission configuration parameter group #2 includes M2 transmission configuration parameters, the numbers of the M1 transmission configuration parameters are #1, #2, # … …, # M2, and so on.

As an embodiment, the first information block is used to determine Q3 transmission configuration parameter groups, any one of the Q3 transmission configuration parameter groups includes Q4 transmission configuration parameters, the Q3 is a positive integer greater than 1, and the Q4 is a positive integer; when the first time length is smaller than the first time threshold, the first transmission configuration parameter group is the transmission configuration parameter group with the smallest number, including Q1 transmission configuration parameters, in the Q3 transmission configuration parameter groups.

As an embodiment, the first information block includes part or all of fields in one MAC-CE.

As an embodiment, the first information block is used to activate transmission configuration parameters.

For one embodiment, the first block of information is used to activate a TCI state.

For one embodiment, the first information block is used to determine Q3 TCI codepoints, any of the Q3 TCI codepoints including Q4 TCI states.

As an embodiment, the second information includes a first TCI codepoint number, the first TCI codepoint number is used to determine one TCI codepoint from the Q3 TCI codepoints, and the determined one TCI codepoint is used to determine the first transmission configuration parameter group.

Example 12

Embodiment 12 is a block diagram illustrating a processing apparatus used in a first node, as shown in fig. 12. In embodiment 12, the first node 1200 comprises a first receiver 1201.

For one embodiment, the first receiver 1201 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4, for example.

In embodiment 12, the first receiver 1201 receives a first information block and a second information block and receives 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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.

For one embodiment, the first node 1200 is a user equipment.

As an embodiment, the first node 1200 is a relay node.

For one embodiment, the first node 1200 is a base station.

As an example, the first node 1200 is a vehicle communication device.

For one 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 a base station device supporting IAB.

Example 13

Embodiment 13 is a block diagram illustrating a processing apparatus used in the second node, as shown in fig. 13. In embodiment 13, the second node 1300 comprises a first transmitter 1301.

For one embodiment, 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 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 in common for reception of the first wireless signal, the Q1 being a positive integer greater than 1; the Q1 transmission configuration parameters are respectively used to determine Q1 reference signals, a first reference signal being one of the Q1 reference signals; the first wireless signal and the first reference signal have a first type of relationship, the first wireless signal and one of the Q1 reference signals other than the first reference signal have a second type of relationship, and the first type of relationship and the second type of relationship are different; the length of the time interval between the reception instant of the second information block and the reception instant of the first set of time-frequency resources is equal to a first length of time, the magnitude relation between the first length of time and a first time threshold being used for determining 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 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 used in common 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 relationship; when the first length of time is less than the first time threshold, the number of the Q2 transmission configuration parameters of the transmission configuration parameters with which the second reference signal is associated is used to determine the first reference signal from the Q1 reference signals.

As an embodiment, the first reference signal is used to determine a receiving frequency for receiving the first wireless signal, and none of the Q1 reference signals other than the first reference signal is used to determine the receiving frequency for receiving the first wireless signal.

For one embodiment, the second node 1300 is a user equipment.

As an embodiment, the second node 1300 is a relay node.

For one embodiment, the second node 1300 is a base station.

As an example, the second node 1300 is a vehicle communication device.

As an embodiment, the second node 1300 is a user equipment supporting V2X communication.

As an embodiment, the second node 1300 is a relay node supporting V2X communication.

As an embodiment, the second node 1300 is a base station device supporting IAB.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in 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 by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The first node in this application includes but not limited to wireless communication devices such as cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, aircraft, unmanned aerial vehicle, telecontrolled aircraft. The second node in this application includes but not limited to wireless communication devices such as cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, aircraft, unmanned aerial vehicle, remote control plane. User equipment or UE or terminal in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control aircraft. The base station device, the base station or the network side device in the present application includes, but is not limited to, a macro cellular base station, a micro cellular base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, and other wireless communication devices and test devices, for example, a transceiver device simulating a part of functions of a base station, a signaling tester, and the like.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node configured for wireless communication, comprising:

2. The first node according to claim 1, wherein the first reference signal is a reference signal determined by the smallest numbered of the Q1 transmission configuration parameters when the first length of time is less than the first time threshold.

3. The first node of claim 1, comprising:

the first receiver to receive a second wireless signal, the second wireless signal to be started to be transmitted before a start time of the first set of time-frequency resources;

4. The first node according to any of claims 1 to 3, wherein the second information block comprises first indication information, and when the first time length is not less than the first time threshold, the first indication information is used for determining the first reference signal from the Q1 reference signals.

5. The first node according to any of claims 1 to 4, wherein the first type of relationship comprises a Doppler shift quasi co-location relationship; the second type of relationship does not include a doppler shift quasi co-location relationship.

6. The first node according to any of claims 1 to 5, wherein the first information block is used to determine Q3 transmission configuration parameter sets, any of the Q3 transmission configuration parameter sets 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 smaller than the first time threshold, the first transmission configuration parameter group is the transmission configuration parameter group with the smallest number, including Q1 transmission configuration parameters, in the Q3 transmission configuration parameter groups.

7. The first node according to any of claims 1-6, wherein the first reference signal is used to determine a reception frequency for receiving the first wireless signal, and none of the Q1 reference signals other than the first reference signal are used to determine the reception frequency for receiving the first wireless signal.

8. A second node configured for wireless communication, comprising:

9. A method of a first node used for wireless communication, comprising:

receiving a first information block and a second information block;

10. A method of a second node used for wireless communication, comprising:

transmitting a first information block and a second information block;