CN113765638B

CN113765638B - Method and apparatus in a node for wireless communication

Info

Publication number: CN113765638B
Application number: CN202010505255.9A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2024-03-26
Anticipated expiration: 2040-06-05
Also published as: CN113765638A

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node receives the first signaling and the second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first set of time-frequency resources, and the second signaling indicates that the second multi-antenna related parameter is configured to a second set of time-frequency resources; performing a first monitoring on a first sub-band; transmitting a first wireless signal on a first set of time-frequency resources using the second multi-antenna-related parameter when a first set of conditions is satisfied; when the first condition set is not satisfied, transmitting a first wireless signal on a first time-frequency resource group by adopting the first multi-antenna related parameter; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold. The method can avoid transmission opportunity waste caused by insufficient time interval between two transmissions to complete the first monitoring.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly to transmission schemes and apparatus related to unlicensed spectrum in wireless communications.

Background

Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet the different performance requirements of various application scenarios, a New air interface technology (NR) is decided to be researched in the 3GPP (3 rd Generation Partner Project, third Generation partnership project) RAN (Radio Access Network ) #72 times of the whole meeting, and standardized Work is started on NR by the 3GPP RAN #75 times of the whole meeting through the WI (Work Item) of NR.

One key technology of NR is to support beam-based signal transmission, and its main application scenario is to enhance coverage of NR devices operating in the millimeter wave band (e.g., a band greater than 6 GHz). In addition, beam-based transmission techniques are also required to support large-scale antennas in low frequency bands (e.g., frequency bands less than 6 GHz). By weighting the antenna array, the rf signal forms a stronger beam in a particular spatial direction, while the signal is weaker in other directions. After the operations of beam measurement, beam feedback and the like, the beams of the transmitter and the receiver can be accurately aligned with each other, so that signals are sent and received with stronger power, and the coverage performance is improved. Beam measurement and feedback of an NR system operating in the millimeter wave band may be accomplished through a plurality of synchronous broadcast Signal blocks (SSs/PBCH blocks) and channel state information Reference signals (CSI-RS). Different SSBs or CSI-RS may be transmitted by using different beams, and the User Equipment (UE) measures SSBs or CSI-RS sent by the gNB (next generation node B ) and feeds back SSB indexes or CSI-RS resource numbers to complete beam alignment.

In conventional cellular systems, data transmission can only occur over licensed spectrum, however with a dramatic increase in traffic, especially in some urban areas, licensed spectrum may be difficult to meet the traffic demand. 3GPP Release 17 will consider extending the application of NR to unlicensed spectrum above 52.6 GHz. To ensure compatibility with other access technologies on unlicensed spectrum, LBT (Listen Before Talk, listen-before-talk) technology is used to avoid interference due to multiple transmitters simultaneously occupying the same frequency resources. For unlicensed spectrum above 52.6GHz, directional LBT (Directional LBT) techniques are more suitable to avoid interference because beam-based signal transmissions have significant directivity.

In the Cat 4LBT (fourth type of LBT, category 4LBT, see 3gpp tr 36.889) procedure of LTE and NR, a transmitter (base station or user equipment) first performs energy detection during a delay period (refer Duration), and if the detection result is that a channel is idle, back off (backoff) is performed and energy detection is performed during the back off time. The time of backoff is counted in units of CCA (Clear Channel Assessment ) slot periods, the number of which is randomly selected by the transmitter within the CWS (Contention Window Size ). Thus, the duration of Cat 4LBT is uncertain. Cat 2LBT (second type of LBT, category 2LBT, see 3GPP TR36.889) is another type of LBT. Cat 2LBT determines whether a channel is idle by evaluating the energy level for a specific period of time. The duration of Cat 2LBT is determined. A similar mechanism is employed in NR. Cat 4LBT is used in downlink, also called Type 1downlink channel Access procedure (Type 1downlink channel access procedures); cat 4LBT is used in downlink, also called Type 1uplink channel Access procedure (Type 1uplink channel access procedures); cat 2LBT is used in downlink, also called Type 2downlink channel access procedure (Type 2downlink channel access procedures) Cat 2LBT is used in uplink, also called Type 2uplink channel access procedure (Type 2uplink channel access procedures). For specific definition, reference may be made to 3gpp ts37.213, and Cat 4LBT in this application is also used to represent a type 1downlink channel access procedure or a type 1uplink channel access procedure, and Cat 2LBT in this application is also used to represent a type 2downlink channel access procedure or a type 2uplink channel access procedure.

It follows that LBT requires a duration. Therefore, for a particular node, a sufficient time interval needs to be reserved before one transmission takes place, during which no other signal transmission takes place. For omni-directional LBT, if the time interval between two transmissions is short (e.g., less than the time required for one Cat2 LBT), the second transmission may be sent directly without LBT, since LBT has already been done before the first transmission.

Disclosure of Invention

The inventor finds that the directional LBT technology is beneficial to improving the spectrum multiplexing efficiency and transmission performance of an NR system working on an unlicensed spectrum. Unlike an omni-directional LBT, a directional LBT is successful and then only signal transmission in the beam direction in which the LBT is successful, while signal transmission in the direction in which the directional LBT is not performed or in the direction in which the directional LBT is not successful will be limited. Therefore, if two signal transmissions are configured with different transmit beams, and the time interval between them is insufficient to complete an LBT, whether the next transmission can be transmitted and what beam transmission to use is a problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses a scenario of air interface transmission between the cellular network gNB and the UE as an example, the present application is also applicable to other communication scenarios (for example, a wireless local area network scenario, a sidelink transmission scenario between the UE and the UE, etc.), and achieves similar technical effects. Furthermore, the use of unified solutions for different scenarios (including but not limited to cellular networks, wireless local area networks, sidelink transmissions, etc.) also helps to reduce hardware complexity and cost. Embodiments in a first node and features in embodiments of the present application may be applied to a second node and vice versa without conflict. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

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

As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS38 series.

As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS37 series.

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

The application discloses a method used in a first node of wireless communication, comprising the following steps:

receiving a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group;

performing a first monitoring on a first sub-band, the first monitoring being used to determine that the first set of time-frequency resources can be used for wireless transmission;

transmitting a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling;

Wherein the first time-frequency resource group and the second time-frequency resource group do not overlap in a time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-band in a frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As one embodiment, the features of the above method include: the first multi-antenna related parameter and the second multi-antenna related parameter are different; the first monitoring is directed LBT; the first time threshold is the minimum time required to complete a directional LBT. When the time interval between the first time-frequency resource group and the second time-frequency resource group is enough to complete once directional LBT, the multi-antenna related parameter of the first wireless signal is determined by the indication of the first signaling; when the time interval between the first time-frequency resource group and the second time-frequency resource group is insufficient to complete one directional LBT, the multi-antenna related parameter of the first wireless signal is adjusted to the second multi-antenna related parameter indicated by the second signaling.

As one example, the benefits of the above method include: when the time interval between the first time-frequency resource group and the second time-frequency resource group is insufficient to complete one directional LBT, the multi-antenna related parameter of the first wireless signal is adjusted to be consistent with the multi-antenna related parameter on the second time-frequency resource group. After adjustment, as the sending beams become consistent, the directional LBT is only needed to be carried out once before the first time-frequency resource group and the second time-frequency resource group, and the directional LBT is not needed to be carried out between the first time-frequency resource group and the second time-frequency resource group, thereby avoiding the waste of sending opportunities caused by incomplete LBT due to insufficient time interval.

According to an aspect of the present application, the method is characterized in that the first condition set includes: the second signaling indicates a higher priority than the first signaling.

As one embodiment, the features of the above method include: the second set of time-frequency resources is used to transmit a second wireless signal; the second wireless signal has a higher priority than the first wireless signal.

As one example, the benefits of the above method include: when the time interval between the first time-frequency resource group and the second time-frequency resource group is insufficient to complete one-time directional LBT, the first wireless signal with lower priority carries out adjustment of multi-antenna related parameters, and the second wireless signal with higher priority carries out no adjustment, thereby being beneficial to guaranteeing the performance of wireless signal transmission with higher priority.

According to an aspect of the present application, the method is characterized in that the first condition set includes: the time domain resources occupied by the second signaling follow the time domain resources occupied by the first signaling.

As one embodiment, the benefits of the above method include adjusting the multi-antenna related parameters of the first wireless signal to be consistent with the multi-antenna related parameters of the second wireless signal when the time interval between the first set of time-frequency resources and the second set of time-frequency resources is insufficient to complete a directional LBT; since the second wireless signal is scheduled later than the first wireless signal, channel characteristics and scheduling requirements at more recent times can be better reflected.

According to an aspect of the present application, the above method is characterized in that the second set of time-frequency resources is used for transmitting a second radio signal, and the second multiple antenna related parameter is used for transmitting the second radio signal.

According to an aspect of the present application, the method is characterized in that the first set of time-frequency resources is located temporally after the second set of time-frequency resources, and the first monitoring starts before the second set of time-frequency resources when the first set of conditions is satisfied.

According to one aspect of the application, the above method is characterized in that the first multi-antenna related parameter is used for determining the multi-antenna related parameter employed for the first monitoring when the first set of conditions is satisfied; the second multi-antenna correlation parameter is used to determine a multi-antenna correlation parameter employed by the first monitoring when the first set of conditions is not satisfied.

According to an aspect of the present application, the method is characterized in that the first condition set includes: the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter.

The application discloses a method used in a second node of wireless communication, comprising the following steps:

Transmitting a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group;

receiving a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; receiving a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling when a first set of conditions is not satisfied;

wherein a first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission, the first monitoring being performed on a first sub-band; the first time-frequency resource group and the second time-frequency resource group are not overlapped in the time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-frequency band in the frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

The application discloses a first node used for wireless communication, which is characterized by comprising:

a first receiver that receives a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group;

the first receiver performing a first monitoring on a first sub-band, the first monitoring being used to determine that the first set of time-frequency resources can be used for wireless transmission;

a first transmitter configured to transmit a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling;

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

a second transmitter that transmits the first signaling and the second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group;

a second receiver for receiving a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; receiving a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling when a first set of conditions is not satisfied;

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

-when the time interval between two uplink transmissions is insufficient to complete one directional LBT, according to whether the first set of conditions is met to adjust the transmit beams of the two uplink transmissions, no further directional LBT is required between the two uplink transmissions, avoiding waste of uplink transmission opportunities;

-when the time interval between two uplink transmissions is insufficient to complete one directional LBT, adjusting the transmit beam for the low priority uplink transmission according to the priority of said two uplink transmissions, facilitating protection of high priority traffic;

when the time interval between the two uplink transmissions is insufficient to complete one directional LBT, the adjustment of the transmission beam is performed on the uplink transmission with the earlier scheduling time according to the sequence of the scheduling time, so that the channel quality and the scheduling requirement of the more recent time can be better reflected.

Drawings

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

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

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

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

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

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

FIG. 6 illustrates a schematic diagram of a time domain relationship of a first set of time-frequency resources and a second set of time-frequency resources according to one embodiment of the present application;

fig. 7 shows a schematic diagram of a relationship in time domain of a first signaling, a second signaling, a first time-frequency resource group and a second time-frequency resource group according to an embodiment of the present application;

FIG. 8 illustrates a schematic diagram of a relationship of a first set of time-frequency resources and a second set of time-frequency resources in the time domain according to one embodiment of the present application;

FIG. 9 shows a schematic diagram of a relationship in time domain between a second monitoring, a second set of time-frequency resources, a first monitoring and the first set of time-frequency resources, according to one embodiment of the present application;

FIG. 10 illustrates a schematic diagram of a first type of channel perception according to an embodiment of the present application;

FIG. 11 illustrates a schematic diagram of a first transmit beam, a second transmit beam, and a first receive beam according to one embodiment of the present application;

FIG. 12 shows a block diagram of a processing device for use in a first node;

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a process flow diagram of a first node of one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step. In particular, the order of steps in the blocks does not represent a particular chronological relationship between the individual steps. In embodiment 1, a first node in the present application receives first signaling and second signaling in step 101, performs first monitoring on a first sub-band in step 102, and transmits a first wireless signal in step 103. Wherein the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; the first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission; transmitting a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling; the first time-frequency resource group and the second time-frequency resource group are not overlapped in the time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-frequency band in the frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As an embodiment, the first signaling is dynamic signaling.

As an embodiment, the first signaling is layer 1 (L1) signaling.

As an embodiment, the first signaling is layer 1 (L1) control signaling.

As an embodiment, the first signaling is cell specific.

As an embodiment, the first signaling is user group specific.

As an embodiment, the first signaling comprises all or part of a higher layer signaling.

As an embodiment, the first signaling comprises all or part of an RRC layer signaling.

For one embodiment, the first signaling includes one or more fields (fields) in an RRC IE.

As an embodiment, the first signaling comprises all or part of a MAC layer signaling.

As an embodiment, the first signaling includes one or more domains in one MAC CE.

As an embodiment, the first signaling includes one or more fields in a PHY layer signaling.

As an embodiment, the first signaling is semi-statically configured.

As an embodiment, the first signaling is dynamically configured.

As an embodiment, the first signaling is transmitted over a SideLink (sidlink).

As an embodiment, the first signaling is transmitted on the downlink (UpLink).

As an embodiment, the first signaling is transmitted over a Backhaul link (Backhaul).

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

As an embodiment, the first signaling is transmitted through a PC5 interface.

As an embodiment, the first signaling is multicast (Groupcast) transmitted.

As an embodiment, the first signaling is Broadcast (Broadcast) transmission.

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

As an embodiment, the first signaling comprises one or more fields in one SCI.

As an embodiment, the first signaling comprises one or more fields in a SCI format.

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

As an embodiment, the first signaling includes one or more fields in one DCI.

As an embodiment, the first signaling includes one or more fields in one DCI format.

As one embodiment, the first signaling is sent on a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

As an embodiment, the first signaling is sent on a physical downlink control channel (Physical Downlink Control Channel, PDCCH).

As an embodiment, the first signaling is sent on a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH).

As one embodiment, the first signaling is sent on a physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH).

As an embodiment, the first signaling is transmitted in a licensed spectrum.

As an embodiment, the first signaling is transmitted in unlicensed spectrum.

As an embodiment, the second signaling is dynamic signaling.

As an embodiment, the second signaling is layer 1 (L1) signaling.

As an embodiment, the second signaling is layer 1 (L1) control signaling.

As an embodiment, the second signaling is cell specific.

As an embodiment, the second signaling is user group specific.

As an embodiment, the second signaling comprises all or part of a higher layer signaling.

As an embodiment, the second signaling includes all or part of an RRC layer signaling.

For one embodiment, the second signaling includes one or more fields (fields) in an RRC IE.

As an embodiment, the second signaling comprises all or part of a MAC layer signaling.

As an embodiment, the second signaling includes one or more domains in one MAC CE.

As an embodiment, the second signaling includes one or more fields in a PHY layer signaling.

As an embodiment, the second signaling is semi-statically configured.

As an embodiment, the second signaling is dynamically configured.

As an embodiment, the second signaling is transmitted over a SideLink (sidlink).

As an embodiment, the second signaling is transmitted on the downlink (UpLink).

As an embodiment, the second signaling is transmitted over a Backhaul link (Backhaul).

As an embodiment, the second signaling is transmitted over a Uu interface.

As an embodiment, the second signaling is transmitted over a PC5 interface.

As an embodiment, the second signaling is multicast (Groupcast) transmitted.

As an embodiment, the second signaling is Broadcast (Broadcast) transmission.

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

As an embodiment, the second signaling comprises one or more fields in one SCI.

As an embodiment, the second signaling comprises one or more fields in a SCI format.

As an embodiment, the second signaling includes DCI (Downlink Control Information ).

As an embodiment, the second signaling includes one or more fields in one DCI.

As an embodiment, the second signaling includes one or more fields in one DCI format.

As an embodiment, the second signaling is sent on a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

As an embodiment, the second signaling is sent on a physical downlink control channel (Physical Downlink Control Channel, PDCCH).

As an embodiment, the second signaling is sent on a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH).

As an embodiment, the second signaling is sent on a physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH).

As an embodiment, the second signaling is transmitted in a licensed spectrum.

As an embodiment, the second signaling is transmitted in unlicensed spectrum.

As an embodiment, the first signaling and the second signaling are sent by the same serving cell.

As an embodiment, the first signaling and the second signaling are sent by different serving cells.

As an embodiment, the first signaling and the first wireless signal are transmitted by the same serving cell.

As an embodiment, the second signaling and the first wireless signal are transmitted by different serving cells.

As an embodiment, the first signaling and the second signaling each include one DCI (Downlink Control Information ).

As an embodiment, the first signaling and the second signaling each comprise a higher layer signaling.

As one embodiment, the first wireless signal comprises a baseband signal.

As one embodiment, the first wireless signal comprises a wireless signal.

As one embodiment, the first wireless signal is transmitted over a SideLink (SideLink).

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

As an embodiment, the first wireless signal is transmitted over a Backhaul link (Backhaul).

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

As an embodiment, the first wireless signal is transmitted through a PC5 interface.

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

As an embodiment, the first radio signal carries a CB (Code Block).

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

As an embodiment, the first wireless signal includes control information.

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

As an embodiment, the first wireless signal comprises one or more domains in one SCI.

As an embodiment, the first radio signal comprises one or more fields in a SCI format.

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

As an embodiment, the first wireless signal includes one or more domains in a UCI.

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

As an embodiment, the first wireless signal comprises a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

As an embodiment, the first wireless signal comprises a physical uplink control channel (Physical Uplink Control Channel, PUCCH).

As one embodiment, the first wireless signal includes a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

As an embodiment, the first wireless signal comprises a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH).

As one embodiment, the first wireless signal includes a physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH).

As an embodiment, the first wireless signal comprises a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH).

As one embodiment, the first wireless signal is transmitted in a licensed spectrum.

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

As an embodiment, the first radio signal includes an uplink reference signal.

As one embodiment, the first wireless signal comprises a sidelink reference signal.

As one embodiment, the first wireless signal comprises a demodulation reference signal (DMRS, demodulation Reference Signal).

As an embodiment, the first wireless signal comprises a sounding reference signal (SRS, sounding Reference Signal).

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

As an embodiment, the first wireless signal comprises a dynamically scheduled uplink signal.

As an embodiment, the first radio signal includes a semi-statically scheduled uplink signal.

As an embodiment, the first radio signal includes a PUSCH Configured Grant (Configured Grant).

As an embodiment, the first wireless signal includes a dynamically scheduled PUSCH.

As an embodiment, the first radio signal comprises a semi-statically scheduled PUSCH.

As one embodiment, the second wireless signal comprises a baseband signal.

As one embodiment, the second wireless signal comprises a wireless signal.

As one embodiment, the second wireless signal is transmitted over a SideLink (SideLink).

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

As an embodiment, the second wireless signal is transmitted over a Backhaul link (Backhaul).

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

As an embodiment, the second wireless signal is transmitted through a PC5 interface.

As an embodiment, the second radio signal carries a TB (Transport Block).

As an embodiment, the second radio signal carries a CB (Code Block).

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

As an embodiment, the second wireless signal comprises control information.

As an embodiment, the second radio signal comprises SCI (Sidelink Control Information ).

As an embodiment, the second wireless signal comprises one or more domains in one SCI.

As an embodiment, the second wireless signal comprises one or more fields in a SCI format.

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

As an embodiment, the second wireless signal includes one or more domains in a UCI.

As an embodiment, the second wireless signal includes one or more fields in a UCI format.

As an embodiment, the second wireless signal comprises a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

As an embodiment, the second wireless signal comprises a physical uplink control channel (Physical Uplink Control Channel, PUCCH).

As an embodiment, the second wireless signal comprises a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

As an embodiment, the second wireless signal comprises a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH).

As one embodiment, the second wireless signal includes a physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH).

As an embodiment, the second wireless signal comprises a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH).

As one embodiment, the second wireless signal is transmitted in a licensed spectrum.

As one embodiment, the second wireless signal is transmitted in an unlicensed spectrum.

As an embodiment, the second radio signal includes an uplink reference signal.

As one embodiment, the second wireless signal comprises a sidelink reference signal.

As one embodiment, the second wireless signal comprises a demodulation reference signal (DMRS, demodulation Reference Signal).

As an embodiment, the second wireless signal comprises a sounding reference signal (SRS, sounding Reference Signal).

As an embodiment, the second radio signal includes an uplink signal Configured with a Grant (Configured Grant).

As an embodiment, the second wireless signal includes a dynamically scheduled uplink signal.

As an embodiment, the second wireless signal includes a semi-statically scheduled uplink signal.

As an embodiment, the second radio signal includes a PUSCH Configured Grant (Configured Grant).

As an embodiment, the second wireless signal includes a dynamically scheduled PUSCH.

As an embodiment, the second wireless signal includes a semi-statically scheduled PUSCH.

As an embodiment, the first time-frequency Resource group includes a positive integer number of Resource Elements (REs) in the frequency domain.

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

As an embodiment, the first time-frequency resource group comprises a positive integer number of resource block sets (Resource Block Group, RBGs) in the frequency domain.

As an embodiment, the first set of time-frequency resources comprises a positive integer number of control channel elements (Control Channel Element, CCEs) in the frequency domain.

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

As an embodiment, the first set of time-frequency resources comprises a positive integer number of time slots in the time domain.

As an embodiment, the first time-frequency resource group includes a positive integer number of subframes in the time domain.

As an embodiment, the second time-frequency Resource group includes a positive integer number of Resource Elements (REs) in the frequency domain.

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

As an embodiment, the second time-frequency resource group comprises a positive integer number of resource block sets (Resource Block Group, RBGs) in the frequency domain.

As an embodiment, the second set of time-frequency resources comprises a positive integer number of control channel elements (Control Channel Element, CCEs) in the frequency domain.

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

As an embodiment, the second time-frequency resource group includes a positive integer number of time slots in the time domain.

As an embodiment, the second time-frequency resource group includes a positive integer number of subframes in the time domain.

As an embodiment, the second set of time-frequency resources precedes the first set of time-frequency resources.

As an embodiment, the time domain resource occupied by the second signaling follows the time domain resource occupied by the first signaling.

As an embodiment, the second set of time-frequency resources follows the first set of time-frequency resources.

As an embodiment, the first time-frequency resource group and the second time-frequency resource group belong to one carrier in the frequency domain.

As an embodiment, the first time threshold is fixed.

As an embodiment, the first time threshold is configurable.

As an embodiment, the first time threshold is configured by higher layer signaling.

As an embodiment, the first time threshold comprises L time intervals, L being a positive integer.

As an embodiment, the unit of the time interval is microseconds.

As an embodiment, the unit of the time interval is the duration of an OFDM symbol.

As an embodiment, the L is fixed.

As an embodiment, the L is configurable.

As an embodiment, the L is configured by higher layer signaling.

As an embodiment, the first multi-antenna related parameter comprises a spatial domain filter (spatial domain filter).

As an embodiment, the second multi-antenna related parameter comprises a spatial domain filter (spatial domain filter).

As an embodiment, the first multi-antenna related parameter comprises TCI (transmission configureation indicator).

As an embodiment, the second multi-antenna related parameter comprises TCI (transmission configureation indicator).

As an embodiment, the first multi-antenna related parameter comprises a Spatial correlation (Spatial correlation) parameter.

As an embodiment, the second multi-antenna related parameter comprises a Spatial correlation (Spatial correlation) parameter.

As an embodiment, the first multi-antenna related parameter comprises a QCL parameter.

As an embodiment, the second multi-antenna related parameter comprises a QCL parameter.

As an embodiment, the first multi-antenna related parameter comprises a transmit beam.

As an embodiment, the second multi-antenna related parameter comprises a transmit beam.

As an embodiment, the first multi-antenna related parameter comprises a receive beam.

As an embodiment, the second multi-antenna related parameter comprises a receive beam.

As an embodiment, the first multi-antenna related parameter comprises a spatial transmit filter.

As an embodiment, the second multi-antenna related parameter comprises a spatial transmit filter.

As an embodiment, the first multi-antenna related parameter comprises a spatial receive filter.

As an embodiment, the second multi-antenna related parameter comprises a spatial receive filter.

As an embodiment, the first multi-antenna related parameter comprises a Spatial correlation (Spatial correlation) with a reference signal.

As an embodiment, the second multi-antenna related parameter comprises a Spatial correlation (Spatial correlation) with a reference signal.

As an embodiment, the first multi-antenna related parameter comprises a QCL relation to a reference signal.

As an embodiment, the second multi-antenna related parameter comprises a QCL relation to a reference signal.

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

As one embodiment, the QCL parameters include QCL type.

As an embodiment, the QCL parameter includes a QCL association relation with another signal.

For one embodiment, the QCL parameter includes a Spatial correlation (Spatial Relation) with another signal.

For a specific definition of QCL, see section 5.1.5 in 3gpp ts38.214, as an example.

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

As one 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), spatial reception parameter (Spatial Rx parameters) }.

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

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

As one embodiment, the QCL parameters include: { delay spread (Doppler spread), doppler spread (Doppler shift), path loss (path loss), average gain (average gain), average delay (average delay), spatial reception parameter (Spatial Rx parameters) }.

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

As one example, QCL type (QCL type) between one signal and another signal is QCL-type refers to: the spatial reception parameters (Spatial Rx parameters) of the wireless signals transmitted on the antenna ports corresponding to the one signal can be deduced from the spatial reception parameters (Spatial Rx parameters) of the wireless signals transmitted on the antenna ports corresponding to the other signal.

As one example, QCL type (QCL type) between one signal and another signal is QCL-type refers to: the one reference signal and the other reference signal can be received with the same spatial reception parameter (Spatial Rx parameters).

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

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

As an embodiment, the first monitoring is LBT (Listen Before Talk ).

As an embodiment, the first monitoring comprises DFS (Dynamic Frequency Selection ).

As one embodiment, the first monitoring is orientation LBT (Directional Listen Before Talk).

As one example, the first monitoring is a Quasi-Omni LBT (Quasi-Omni-Directional Listen Before Talk).

As an embodiment, the length of time of the first monitoring is determined randomly.

As an embodiment, the first monitoring is Cat 4LBT (Category 4 LBT).

As an embodiment, the length of time of the first monitoring is fixed.

As one example, the first monitoring is Cat 2LBT (Category 2 LBT).

As one embodiment, the first monitoring comprises energy detection.

As one embodiment, the first monitoring includes multiple energy detections.

As one embodiment, the first monitoring comprises sequence coherent detection.

As one embodiment, the first monitoring includes CRC detection.

As one embodiment, the first monitoring is used to determine whether a first sub-band is idle, the first sub-band comprising a positive integer number of RBs.

As an embodiment, the result of the first monitoring comprises the first sub-band being free and the first sub-band not being free.

As an embodiment, when the signal strength on the first sub-band exceeds the first power threshold, the first monitoring result is that the first sub-band is not idle, and when the signal strength on the first sub-band is lower than the first power threshold, the first monitoring result is that the first sub-band is idle.

As an embodiment, the first power threshold is related to the first monitored multi-antenna related parameter.

As one embodiment, the first power threshold is in dBm.

As one embodiment, the first power threshold is in watts.

As one embodiment, the first monitoring is used to determine a channel occupancy of the first sub-band, the channel occupancy comprising a probability that the channel is occupied for a period of time.

As one embodiment, the first monitoring is used to determine a channel idle rate for the first sub-band, the channel idle rate comprising a probability that the channel is idle for a period of time.

As an embodiment, the first monitoring comprises a measurement of a reference signal.

As an embodiment, the first monitoring is used to determine RSRP (Reference Signal Received Power ).

As one embodiment, the first monitoring is used to determine RSSI (Received Signal Strength Indicator, received signal strength indication).

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G system)/EPS (Evolved Packet System ) 200 by some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

As an embodiment, the first node in the present application includes the gNB203.

As an embodiment, the second node in the present application includes the gNB203.

As an embodiment, the second node in the present application includes the UE241.

As an embodiment, the first node in the present application includes the UE241.

As an embodiment, the second node in the present application comprises the UE201.

As an embodiment, the second node in the present application includes the gNB204.

As an embodiment, the user equipment in the present application includes the UE201.

As an embodiment, the user equipment in the present application includes the UE241.

As an embodiment, the base station device in the present application includes the gNB203.

As an embodiment, the base station device in the present application includes the gNB204.

As an embodiment, the UE201 supports sidelink transmission.

As an embodiment, the UE201 supports a PC5 interface.

As an embodiment, the UE201 supports the Uu interface.

As an embodiment, the UE241 supports sidelink transmission.

As an embodiment, the UE241 supports a PC5 interface.

As an embodiment, the gNB203 supports the Uu interface.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first node (RSU in UE or V2X, in-vehicle device or in-vehicle communication module) and a second node (gNB, RSU in UE or V2X, in-vehicle device or in-vehicle communication module), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the links between the first node and the second node and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) 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 the first node to the second node. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets by ARQ, and RLC sublayer 303 also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), and the radio protocol architecture for the first node and the second node in the user plane 350 is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first node may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.

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

As an embodiment, the first signaling in the present application is generated in the PHY351.

As an embodiment, the first signaling in the present application is generated in the MAC352.

As an embodiment, the first signaling in the present application is generated in the PHY301.

As an embodiment, the first signaling in the present application is generated in the MAC302.

As an embodiment, the first signaling in the present application is generated in the RRC306.

As an embodiment, the second signaling in the present application is generated in the PHY351.

As an embodiment, the second signaling in the present application is generated in the MAC352.

As an embodiment, the second signaling in the present application is generated in the PHY301.

As an embodiment, the second signaling in the present application is generated in the MAC302.

As an embodiment, the second signaling in the present application is generated in the RRC306.

As an embodiment, the first wireless signal in the present application is generated in the PHY351.

As an embodiment, the first wireless signal in the present application is generated in the MAC352.

As an embodiment, the first wireless signal in the present application is generated in the PHY301.

As an embodiment, the first wireless signal in the present application is generated in the MAC302.

As an embodiment, the first radio signal in the present application is generated in the RRC306.

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 in communication with each other in an access network.

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

The second communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

In the transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the first communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the first communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the first communication device 410 to the second communication device 450, each receiver 454 receives a signal at the second communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. A receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.

In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.

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

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

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

As a sub-embodiment of the above embodiment, the second communication device 450 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using a positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 means at least: receiving a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; performing a first monitoring on a first sub-band, the first monitoring being used to determine that the first set of time-frequency resources can be used for wireless transmission; transmitting a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling; wherein the first time-frequency resource group and the second time-frequency resource group do not overlap in a time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-band in a frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; performing a first monitoring on a first sub-band, the first monitoring being used to determine that the first set of time-frequency resources can be used for wireless transmission; transmitting a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling; wherein the first time-frequency resource group and the second time-frequency resource group do not overlap in a time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-band in a frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As one embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; receiving a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; receiving a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling when a first set of conditions is not satisfied; wherein a first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission, the first monitoring being performed on a first sub-band; the first time-frequency resource group and the second time-frequency resource group are not overlapped in the time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-frequency band in the frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As one embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; receiving a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; receiving a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling when a first set of conditions is not satisfied; wherein a first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission, the first monitoring being performed on a first sub-band; the first time-frequency resource group and the second time-frequency resource group are not overlapped in the time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-frequency band in the frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving the first signaling in the present application.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving the second signaling in the present application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving the first wireless signal in the present application.

As an embodiment at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application for transmitting the first signaling.

As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to send the second signaling.

As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to transmit the first wireless signal.

Example 5

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

For the first node U1, the first signaling is received in step S11, the second signaling is received in step S12, the first monitoring is performed in step S13, the second wireless signal is transmitted in step S14, and the first wireless signal is transmitted in step S15.

For the second node U2, the first signaling is transmitted in step S21, the second signaling is transmitted in step S22, the second wireless signal is received in step S23, and the first wireless signal is received in step S24. Wherein step S14 and step S23 in block F51 are optional.

In embodiment 5, the first signaling indicates that the first multi-antenna related parameter is configured to a first set of time-frequency resources and the second signaling indicates that the second multi-antenna related parameter is configured to a second set of time-frequency resources; the first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission; transmitting a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling when a first set of conditions is satisfied; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling; wherein the first time-frequency resource group and the second time-frequency resource group do not overlap in a time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-band in a frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold; the second set of time-frequency resources is used to transmit a second wireless signal and the second multi-antenna related parameter is used to transmit the second wireless signal.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a PC5 interface.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a sidelink.

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

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a cellular link.

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

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a radio interface between a base station device and a user equipment.

Example 6

Embodiment 6 illustrates a schematic diagram of a time domain relationship between a first time-frequency resource group and a second time-frequency resource group according to the present application, as shown in fig. 6. Fig. 6 includes four sub-figures, each of which illustrates four different sub-embodiments. In fig. 6 (a), the first time-frequency resource group is located before the second time-frequency resource group in the time domain, and the time interval between the ending time of the first time-frequency resource group and the starting time of the second time-frequency resource group is T1. In fig. 6 (b), the second time-frequency resource group is temporally before the first time-frequency resource group, and a time interval between an end time of the second time-frequency resource group and a start time of the first time-frequency resource group is T1. In fig. 6 (c), the first time-frequency resource group is located before the second time-frequency resource group in the time domain, and the first time-frequency resource group and the second time-frequency resource group are adjacent in the time domain. In fig. 6 (c), the second time-frequency resource group is located before the first time-frequency resource group in the time domain, and the second time-frequency resource group and the first time-frequency resource group are adjacent in the time domain.

As an embodiment, the first condition set includes: the first set of time-frequency resources is temporally located before the second set of time-frequency resources, and a time interval between an end time of the first set of time-frequency resources and a start time of the second set of time-frequency resources does not exceed a first time threshold.

As an embodiment, the first condition set includes: the second set of time-frequency resources is temporally located before the first set of time-frequency resources, and a time interval between an end time of the second set of time-frequency resources and a start time of the first set of time-frequency resources does not exceed a first time threshold.

As an embodiment, the second set of time-frequency resources is used for transmitting a second wireless signal, and the second multi-antenna related parameter is used for transmitting the second wireless signal.

As an embodiment, the first condition set includes: the second wireless signal includes CG-PUSCH (Configured Grant PUSCH, configured to grant PUSCH) and the first wireless signal includes dynamically scheduled PUSCH.

As an embodiment, the first condition set includes: the first wireless signal includes CG-PUSCH (Configured Grant PUSCH, configured to grant PUSCH) and the second wireless signal includes dynamically scheduled PUSCH.

As an embodiment, the first condition set includes: the second wireless signal includes PUSCH and the first wireless signal includes PUCCH.

As an embodiment, the first condition set includes: the first wireless signal includes PUSCH and the second wireless signal includes PUCCH.

As an embodiment, the first condition set includes: the second wireless signal includes SRS and the first wireless signal includes PUSCH.

As an embodiment, the first condition set includes: the first wireless signal includes SRS and the second wireless signal includes PUSCH.

As an embodiment, the first condition set includes: the second wireless signal includes SRS and the first wireless signal includes PUCCH.

As an embodiment, the first condition set includes: the first wireless signal includes SRS and the second wireless signal includes PUCCH.

As an embodiment, the first condition set includes: the first wireless signal and the second wireless signal are both PUSCH, and the priority of the first wireless signal is lower than the priority of the second wireless signal.

As an embodiment, the first condition set includes: the first radio signal and the second radio signal are both PUSCH, and the MCS (Modulation and Coding Scheme ) of the first radio signal is not higher than the MCS of the second radio signal.

As an embodiment, the above method has the advantage that when the time interval between the first radio signal and the second radio signal is insufficient to complete the directional LBT once, the beam of the first radio signal with lower MCS is adjusted to be the same as the second radio signal, and the transmission performance of the first radio signal is more advantageous because higher MCS means better channel conditions.

As one embodiment, when the first set of conditions is satisfied, the MCS of the first wireless signal is adjusted to the MCS indicated by the second signaling.

Example 7

Embodiment 7 illustrates a schematic diagram of a relationship between a first signaling, a second signaling, a first time-frequency resource group, and a second time-frequency resource group in the time domain according to an embodiment of the present application, as illustrated in fig. 7. Fig. 7 includes two sub-figures, each showing two different sub-embodiments. In the two subgraphs, the time-frequency resources occupied by the first signaling are located before the time-frequency resources occupied by the second signaling in time domain, the first signaling indicates the first time-frequency resource group, and the second signaling indicates the second time-frequency resource group. In fig. 7 (a), the first time-frequency resource group indicated by the first signaling is located after the second time-frequency resource group indicated by the second signaling in the time domain. In fig. 7 (b), the first time-frequency resource group indicated by the first signaling is located before the second time-frequency resource group indicated by the second signaling in the time domain.

As an embodiment, the first signaling includes indication information of the first time-frequency resource group.

As an embodiment, the second signaling includes indication information of the second time-frequency resource group.

As an embodiment, the second signaling comprises a reconfiguration indication of multiple antenna related parameters for the first wireless signal.

As one embodiment, the reconfiguration indication of the multi-antenna related parameter for the first wireless signal is used to determine whether to adjust the multi-antenna related parameter of the first wireless signal.

As an embodiment, the first condition set includes: the reconfiguration of the multi-antenna related parameters for the first wireless signal indicates adjusting the multi-antenna related parameters of the first wireless signal.

As one embodiment, the phrase "when the first set of conditions is not satisfied" includes: the reconfiguration of the multi-antenna related parameters for the first wireless signal indicates that the multi-antenna related parameters of the first wireless signal are not adjusted.

As one embodiment, the phrase "when the first set of conditions is not satisfied" includes: the second signaling does not include a reconfiguration indication for the multiple antenna related parameters of the first wireless signal.

Example 8

Embodiment 8 illustrates a schematic diagram of a relationship between a first set of time-frequency resources and a second set of time-frequency resources in the time domain according to a first monitoring of an embodiment of the present application, as shown in fig. 8. Fig. 8 includes two sub-figures, each representing two different sub-embodiments. In fig. 8 (a), the first monitoring is performed before the time domain resources occupied by the second time-frequency resource group and ends before the second time-frequency resource group starts, and the first time-frequency resource group is located after the second time-frequency resource group. In fig. 8 (b), the first monitoring is performed before the time domain resources occupied by the first time-frequency resource group and ends before the first time-frequency resource group starts, and the second time-frequency resource group is located after the first time-frequency resource group.

As one embodiment, the first multi-antenna related parameter is used to determine a multi-antenna related parameter employed by the first monitoring when a first set of conditions is satisfied; the second multi-antenna related parameter is used to determine a multi-antenna related parameter employed for the first monitoring when the first set of conditions is not satisfied.

As an embodiment, the multiple antenna related parameter employed by the first monitoring comprises a receive beam of the first monitoring.

As an embodiment, the multiple antenna related parameter employed by the first monitoring comprises a spatial receive filter of the first monitoring.

As an embodiment, the multiple antenna related parameter used for the first monitoring includes a spatial association relationship between the first monitoring and a reference signal.

As an embodiment, the phrase "spatial association of the first monitoring and one reference signal" includes that a spatial transmit filter of the first reference signal may be used for signal reception of the first monitoring.

As an embodiment, the phrase "spatial association of the first monitoring and one reference signal" includes that a spatial reception filter of the first reference signal may be used for signal reception of the first monitoring.

As an embodiment, the sentence "the first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission" includes that the first set of time-frequency resources can be used for wireless transmission when the result of the first monitoring is that a first sub-band is idle.

As an embodiment, the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter, which is used for receiving the first wireless signal.

As an embodiment, the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter, which is used for receiving the second wireless signal.

As an embodiment, the first and second multi-antenna related parameters are each associated to a third multi-antenna related parameter, which is used for receiving the first and second wireless signals.

Example 9

Embodiment 9 illustrates a schematic diagram of a relationship between a second monitoring, a second set of time-frequency resources, a first monitoring, and the first set of time-frequency resources in the time domain, as shown in fig. 9, according to an embodiment of the present application. In fig. 9, the second time-frequency resource group is temporally located before the first time-frequency resource group, the second monitoring is started before the second time-frequency resource group, the first monitoring is performed before the first time-frequency resource group, and a time length between an end time of the second time-frequency resource group and a start time of the first time-frequency resource group is T1. In fig. 9, a second set of time-frequency resources is indicated by a dashed box to indicate that the first sub-band is not idle as a result of the second monitoring, and therefore the second wireless signal is not transmitted. Thus, the duration of the first monitoring may overlap in time domain with the second set of time-frequency resources.

As an embodiment, the second monitoring is LBT (Listen Before Talk ).

As an embodiment, the second monitoring comprises DFS (Dynamic Frequency Selection ).

As one embodiment, the second monitoring is orientation LBT (Directional Listen Before Talk).

As one example, the second monitoring is a Quasi-Omni LBT (Quasi-Omni-Directional Listen Before Talk).

As an embodiment, the length of time of the second monitoring is determined randomly.

As one example, the second monitoring is Cat 4LBT (Category 4 LBT).

As an embodiment, the length of time of the second monitoring is fixed.

As one example, the second monitoring is Cat 2LBT (Category 2 LBT).

As one embodiment, the second monitoring comprises energy detection.

As one embodiment, the second monitoring comprises multiple energy detections.

As an embodiment, the second monitoring comprises sequence coherent detection.

As an embodiment, the second monitoring comprises CRC detection.

As one embodiment, the second monitoring is used to determine whether a first sub-band is idle, the first sub-band comprising a positive integer number of RBs.

As an embodiment, the result of the second monitoring comprises the first sub-band being free and the first sub-band not being free.

As an embodiment, when the signal strength on the first sub-band exceeds the first power threshold, the result of the second monitoring is that the first sub-band is not idle, and when the signal strength on the first sub-band is lower than the first power threshold, the result of the second monitoring is that the first sub-band is idle.

As an embodiment, the first power threshold is related to the second monitored multi-antenna related parameter.

As one embodiment, the first power threshold is in dBm.

As one embodiment, the first power threshold is in watts.

As one embodiment, the second monitoring is used to determine a channel occupancy of the first sub-band, the channel occupancy comprising a probability that the channel is occupied for a period of time.

As one embodiment, the second monitoring is used to determine a channel idle rate for the first sub-band, the channel idle rate comprising a probability that the channel is idle for a period of time.

As an embodiment, the second monitoring comprises a measurement of a reference signal.

As an embodiment, the second monitoring is used to determine RSRP (Reference Signal Received Power ).

As an embodiment, the second monitoring is used to determine RSSI (Received Signal Strength Indicator, received signal strength indication).

As an embodiment, the first condition set includes that the second monitoring results in a channel being non-idle.

As an embodiment, the first set of conditions includes the second signal being transmitted.

As an embodiment, the phrase "when the first set of conditions is not satisfied" includes that the second monitoring results in a channel being idle.

As an embodiment, the phrase "when the first set of conditions is not satisfied" includes that the second signal is not transmitted.

As an embodiment, the phrase "when the first set of conditions is not satisfied" includes that the second signal is not transmitted in its entirety.

As an embodiment, the phrase "when the first set of conditions is not satisfied" includes that the last Q1 multicarrier symbols of the second signal are not transmitted, the Q1 being an integer not less than 1.

As one embodiment, the time domain resources associated with the Q1 multicarrier symbols are used to perform the first monitoring.

As an embodiment, the value of Q1 is a minimum value that satisfies the sum of the length of time occupied by the Q1 multi-carrier symbols and the length of time represented by T1 not exceeding the length of time required for the first monitoring.

Example 10

Embodiment 10 illustrates a schematic diagram of a first type of channel perception according to an embodiment of the present application, as shown in fig. 10.

As an embodiment, the first monitoring in the present application comprises the first type of channel perception.

As an embodiment, the second monitoring in the present application comprises the first type of channel perception.

In embodiment 10, the first type of channel sensing includes performing Q2 times of energy detection in the Q2 time sub-pools on the first sub-band, respectively, to obtain Q2 detection values, where Q2 is a positive integer; a wireless signal is transmitted in the first sub-band if and only if Q3 of the Q2 detection values are all below a first perceptual threshold, and a starting transmission instant of the wireless signal is not earlier than an ending instant of the first time window, Q3 being a positive integer not greater than the Q2. The Q2 energy detection process may be described by the flow chart of fig. 10.

In fig. 10, the first node or the second node is in an idle state in step S1001, and determines whether transmission is required in step S1002; performing energy detection in step 1003 during a delay period (delay duration); in step S1004, it is determined whether all the perceived slot periods (sensing slot duration) within this delay period are idle, and if so, it proceeds to step S1005 where the first counter is set equal to Q2; otherwise, returning to the step S1004; in step S1006, it is determined whether the first counter is 0, and if so, the process proceeds to step S1007 to transmit a wireless signal on the first sub-band in the present application; otherwise proceeding to step S1008 to perform energy detection during an additional perceived time slot period (additional sensing slot duration); in step S1009, it is determined whether this additional perceived slot period is idle, and if so, it proceeds to step S1010 where the first counter is decremented by 1, and then returns to step 1006; otherwise proceeding to step S1011 to perform energy detection during an additional delay period (additional defer duration); in step S1012, it is judged whether or not all the perceived slot periods within this additional delay period are idle, and if so, the process proceeds to step S1010; otherwise, the process returns to step S1011.

As one embodiment, any one of the perceived time slot periods within a given time period includes one of the Q2 time sub-pools; the given time period is any one of { all delay periods, all additional perceived time slot periods, all additional delay periods } included in fig. 10.

As one embodiment, performing energy detection within a given time period refers to: performing energy detection during all perceived slot periods within the given time period; the given time period is any one of { all delay periods, all additional perceived time slot periods, all additional delay periods } included in fig. 10.

As one embodiment, the determination that it is idle by energy detection for a given time period means that: all perceived time slot periods included in the given period are judged to be idle by energy detection; the given time period is any one of { all delay periods, all additional perceived time slot periods, all additional delay periods } included in fig. 10.

As one embodiment, a given perceived slot period being judged to be idle by energy detection means that: the first node perceives (Sense) the power of all wireless signals on the first sub-band in a given time unit and averages over time, the obtained received power being below the first perceived threshold; the given time unit is a duration in the given perceived time slot period.

As a sub-embodiment of the above embodiment, the duration of the given time unit is not shorter than 4 microseconds.

As one embodiment, a given perceived slot period being judged to be idle by energy detection means that: the first node perceives (Sense) the energy of all wireless signals on the first sub-band in a given time unit and averages over time, the obtained received energy being below the first perception threshold; the given time unit is a duration in the given perceived time slot period.

As one embodiment, a given perceived slot period being judged to be idle by energy detection means that: the first node performs energy detection on a time sub-pool included in the given perception time slot period, and the obtained detection value is lower than the first perception threshold; the time sub-pool belongs to the Q2 time sub-pools, and the detection values belong to the Q2 detection values.

As one embodiment, performing energy detection within a given time period refers to: performing energy detection within all time sub-pools within the given time period; the given time period is any one period of { all delay periods, all additional perceived time slot periods, all additional delay periods } included in fig. 10, and the all time sub-pools belong to the Q2 time sub-pools.

As one embodiment, the determination that it is idle by energy detection for a given time period means that: the detection values obtained by energy detection of all the time sub-pools included in the given period are lower than the first perception threshold value; the given time period is any one period of { all delay periods, all additional perceived time slot periods, all additional delay periods } included in fig. 10, the all time sub-pools belong to the Q2 time sub-pools, and the detection values belong to the Q2 detection values.

As an example, the duration of one delay period (delay duration) is 16 microseconds plus M2 to 9 microseconds, where M2 is a positive integer.

As a sub-embodiment of the above embodiment, one delay period includes m1+1 time sub-pools of the Q2 time sub-pools.

As a sub-embodiment of the above embodiment, the priority corresponding to the first signal in the present application is used to determine the M1.

As a reference embodiment of the above sub-embodiment, the priority is a channel access priority (Channel Access Priority Class), and the definition of the channel access priority is referred to as 3gpp ts37.213.

As a sub-embodiment of the above embodiment, the M2 belongs to {1,2,3,7}.

As an embodiment, the Q2 times of energy detection are the same in all the multiple antenna related reception parameters.

As one embodiment, the Q2 energy detections are used to determine if the first sub-band is Idle.

As one embodiment, the Q2 energy detections are used to determine whether the first sub-band is usable by the first node to transmit wireless signals.

As one embodiment, the Q2 energy detection is used to determine whether the first sub-band can be used by the first node to transmit wireless signals related to the Q2 energy detection space.

As an embodiment, the Q2 energy detection is energy detection in LBT (Listen Before Talk ), a specific definition and implementation of which is referred to 3gpp ts37.213.

As an embodiment, the Q2 energy detection is energy detection in CCA (clear channel assessment), see 3GPPTR36.889 for a specific definition and implementation of CCA.

As an embodiment, any one of the Q2 energy detections is implemented in a manner defined by 3gpp ts37.213.

As an embodiment, any one of the Q2 times of energy detection is implemented by an energy detection manner in WiFi.

As an embodiment, any one of the Q2 energy detections is achieved by measuring the RSSI (Received Signal Strength Indication ).

As an embodiment, any one of the Q2 times of energy detection is implemented by an energy detection method in LTE LAA.

As an example, the Q2 detection value units are dBm (millidecibel).

As one example, the Q2 detection values are all in milliwatts (mW).

As one example, the Q2 detection values are all in joules.

As one embodiment, the Q3 is smaller than the Q2.

As one embodiment, Q2 is greater than 1.

As one embodiment, the first sensing threshold is in dBm (millidecibel).

As one embodiment, the first sensing threshold is in milliwatts (mW).

As an embodiment, the first perception threshold is in joules.

As an embodiment, the first perception threshold is equal to or less than-72 dBm.

As an embodiment, the first perception threshold is any value equal to or smaller than a first given value.

As a sub-embodiment of the above embodiment, the first given value is predefined.

As a sub-embodiment of the above embodiment, the first given value is configured by higher layer signaling and the first node is a user equipment.

As an embodiment, the first type included in the first candidate type set in the present application includes the first candidate channel aware operation.

As an embodiment, the first monitoring in the present application further comprises a second type of channel perception.

As an embodiment, the second monitoring in the present application further comprises a second type of channel perception.

As one embodiment, the second type of channel sensing operation includes performing Q4 times of energy detection in a second time window on the first sub-frequency band, to obtain Q4 detection values, where Q4 is a positive integer; the first sub-band is used to transmit wireless signals if and only if all Q5 of the Q4 detected values are below a first perception threshold, Q5 being a positive integer not greater than Q4.

As a sub-embodiment of the above embodiment, the length of the second time window is predefined.

As a sub-embodiment of the above embodiment, the length of the second time window includes one of {9 μs, 16 μs, 25 μs, 5 μs, 8 μs, 13 μs }.

Example 11

Embodiment 11 illustrates a schematic diagram of a first transmit beam, a second transmit beam, and a first receive beam according to one embodiment in the present application, as illustrated in fig. 11. In embodiment 11, the first transmission beam and the second transmission beam are both transmission beams of the first node; the first receive beam is a receive beam of the second node; the first multi-antenna related parameter includes the first transmit beam; the second multi-antenna related parameter includes the second transmit beam; the third multiple antenna related parameter includes the first receive beam. In embodiment 11, both the first transmit beam and the second transmit beam of the first node may be received by the first receive beam of the second node. Illustratively, in FIG. 11, the first beam is an NLOS (Non-Line of Sight) beam and the second beam is an LOS (Line of Sight) beam.

As an embodiment, the first condition set includes: the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter.

As an embodiment, the third multi-antenna related parameter is used for receiving the first wireless signal.

As an embodiment, the third multi-antenna related parameter is used for receiving the second wireless signal.

As an embodiment, the third multi-antenna related parameter comprises a QCL relation to a reference signal.

As an embodiment, the third multi-antenna related parameter comprises a spatial correlation with a reference signal.

As an embodiment, the third multi-antenna related parameter comprises a spatial correlation with one SSB.

As an embodiment, the third multi-antenna related parameter includes a spatial correlation with one CSI-RS resource.

As an embodiment, the third multi-antenna related parameter comprises a QCL relationship with one SSB.

As an embodiment, the third multi-antenna related parameter includes a QCL relationship with one CSI-RS resource.

As an embodiment, the third multi-antenna related parameter comprises a spatial receive filter of the second node.

As one embodiment, the first multi-antenna related parameter is used to determine a multi-antenna related parameter employed for the first monitoring when the first set of conditions is satisfied; the second multi-antenna correlation parameter is used to determine a multi-antenna correlation parameter employed by the first monitoring when the first set of conditions is not satisfied.

As an embodiment, the second multi-antenna related parameter is used to determine a multi-antenna related parameter employed by the second monitoring.

As an embodiment, the multiple antenna related parameter employed by the first monitoring is independent of whether the first set of conditions is met.

As an embodiment, the multiple antenna related parameter employed by the second monitoring is independent of whether the first set of conditions is met.

Example 12

Embodiment 12 illustrates a block diagram of a processing device for use in a first node, as shown in fig. 12. In embodiment 12, the first node 1200 comprises a first receiver 1201 and a first transmitter 1202.

As one example, 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 of the present application.

As one example, the first transmitter 1202 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 12, the first receiver 1201 receives first signaling and second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; the first receiver 1201 performs a first monitoring on a first sub-band, the first monitoring being used to determine that the first set of time-frequency resources can be used for wireless transmission; the first transmitter 1202, when a first set of conditions is satisfied, transmits a first wireless signal on the first set of time-frequency resources using the second multi-antenna related parameter indicated by the second signaling; when a first set of conditions is not satisfied, transmitting a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling; wherein the first time-frequency resource group and the second time-frequency resource group do not overlap in a time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-band in a frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As an embodiment, the first node 1200 is a user equipment.

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

As an embodiment, the first node 1200 is a base station.

As an embodiment, the first node 1200 is an in-vehicle communication device.

As an embodiment, the first node 1200 is a user equipment supporting V2X communication.

As an embodiment, the first node 1200 is a relay node supporting V2X communication.

As an embodiment, the first node 1200 is an IAB-capable base station device.

Example 13

Embodiment 13 illustrates a block diagram of a processing device for use in a first node, as shown in fig. 13. In embodiment 13, the first node 1300 includes a second transmitter 1301 and a second receiver 1302.

As one example, the second 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.

The second receiver 1302, for one embodiment, includes at least one of an antenna 452, a transmitter/receiver 454, a multi-antenna receive processor 458, a receive processor 456, a controller/processor 459, a memory 460, and a data source 467 of fig. 4 of the present application.

In embodiment 13, the second transmitter 1301 transmits a first signaling and a second signaling; the first signaling indicates that the first multi-antenna related parameter is configured to a first time-frequency resource group, and the second signaling indicates that the second multi-antenna related parameter is configured to a second time-frequency resource group; the second receiver 1302 receives a first wireless signal on the first set of time-frequency resources using the second multi-antenna-related parameter indicated by the second signaling when a first set of conditions is satisfied; receiving a first wireless signal on the first set of time-frequency resources using the first multi-antenna related parameter indicated by the first signaling when a first set of conditions is not satisfied; wherein a first monitoring is used to determine that the first set of time-frequency resources can be used for wireless transmission, the first monitoring being performed on a first sub-band; the first time-frequency resource group and the second time-frequency resource group are not overlapped in the time domain, and the first time-frequency resource group and the second time-frequency resource group belong to the first sub-frequency band in the frequency domain; the first set of conditions includes: the time interval of the first time-frequency resource group and the second time-frequency resource group in the time domain does not exceed a first time threshold.

As an embodiment, the first condition set includes: the second signaling indicates a higher priority than the first signaling.

As an embodiment, the first condition set includes: the time domain resources occupied by the second signaling follow the time domain resources occupied by the first signaling.

As an embodiment, the first set of time-frequency resources is located temporally after the second set of time-frequency resources, and the first monitoring starts before the second set of time-frequency resources when the first set of conditions is satisfied.

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

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

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

As one embodiment, the second node 1300 is an in-vehicle communication device.

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

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

As an embodiment, the second node 1300 is an IAB-capable base station device.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. The first node in the application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The second node in the application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane and other wireless communication devices. The user equipment or UE or terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power device, an eMTC device, an NB-IoT device, an on-board communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane, and other wireless communication devices. The base station device or the base station or the network side device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, and other wireless communication devices.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, wherein the first set of conditions comprises: the second signaling indicates a higher priority than the first signaling.

3. The first node according to claim 1 or 2, wherein the first set of conditions comprises: the time domain resources occupied by the second signaling follow the time domain resources occupied by the first signaling.

4. A first node according to any of claims 1-3, characterized in that the second set of time-frequency resources is used for transmitting a second radio signal, the second multiple antenna related parameter being used for transmitting the second radio signal.

5. The first node according to any of claims 1-4, wherein the first set of time-frequency resources is located temporally after the second set of time-frequency resources, the first monitoring beginning before the second set of time-frequency resources when the first set of conditions is met.

6. The first node according to any of claims 1 to 5, wherein the first multi-antenna related parameter is used to determine a multi-antenna related parameter employed for the first monitoring when the first set of conditions is met; the second multi-antenna correlation parameter is used to determine a multi-antenna correlation parameter employed by the first monitoring when the first set of conditions is not satisfied.

7. The first node according to any of claims 1 to 6, wherein the first set of conditions comprises: the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter.

8. A second node for wireless communication, comprising:

9. The second node of claim 8, wherein the first set of conditions comprises: the second signaling indicates a higher priority than the first signaling.

10. The second node according to claim 8 or 9, wherein the first set of conditions comprises: the time domain resources occupied by the second signaling follow the time domain resources occupied by the first signaling.

11. The second node according to any of claims 8 to 10, wherein the second set of time-frequency resources is used for transmitting a second wireless signal, and wherein the second multi-antenna related parameter is used for transmitting the second wireless signal.

12. The second node according to any of claims 8 to 11, wherein the first set of time-frequency resources is located temporally after the second set of time-frequency resources, the first monitoring starting before the second set of time-frequency resources when the first set of conditions is met.

13. The second node according to any of claims 8 to 12, wherein the first multi-antenna related parameter is used to determine a multi-antenna related parameter employed for the first monitoring when the first set of conditions is met; the second multi-antenna correlation parameter is used to determine a multi-antenna correlation parameter employed by the first monitoring when the first set of conditions is not satisfied.

14. The second node according to any of claims 8 to 13, wherein the first set of conditions comprises: the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter.

15. A method for a first node for wireless communication, comprising:

16. The method of the first node of claim 15, wherein the first set of conditions comprises: the second signaling indicates a higher priority than the first signaling.

17. The method of a first node according to claim 15 or 16, wherein the first set of conditions comprises: the time domain resources occupied by the second signaling follow the time domain resources occupied by the first signaling.

18. The method according to any of claims 15 to 17, wherein the second set of time-frequency resources is used for transmitting a second radio signal, and wherein the second multiple antenna related parameter is used for transmitting the second radio signal.

19. The method according to any of claims 15 to 18, wherein the first set of time-frequency resources is located temporally after the second set of time-frequency resources, the first monitoring starting before the second set of time-frequency resources when the first set of conditions is met.

20. The method according to any of claims 15 to 19, wherein the first multi-antenna related parameter is used for determining a multi-antenna related parameter employed for the first monitoring when the first set of conditions is met; the second multi-antenna correlation parameter is used to determine a multi-antenna correlation parameter employed by the first monitoring when the first set of conditions is not satisfied.

21. The method of a first node according to any of claims 15 to 20, wherein the first set of conditions comprises: the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter.

22. A method for a second node for wireless communication, comprising:

23. The method of the second node of claim 22, wherein the first set of conditions comprises: the second signaling indicates a higher priority than the first signaling.

24. The method of a second node according to claim 22 or 23, wherein the first set of conditions comprises: the time domain resources occupied by the second signaling follow the time domain resources occupied by the first signaling.

25. The method according to any of claims 22 to 24, wherein the second set of time-frequency resources is used for transmitting a second radio signal, and wherein the second multiple antenna related parameter is used for transmitting the second radio signal.

26. The method according to any of claims 22 to 25, wherein the first set of time-frequency resources is located temporally after the second set of time-frequency resources, the first monitoring starting before the second set of time-frequency resources when the first set of conditions is met.

27. The method according to any of claims 22 to 26, wherein the first multi-antenna related parameter is used to determine a multi-antenna related parameter employed for the first monitoring when the first set of conditions is met; the second multi-antenna correlation parameter is used to determine a multi-antenna correlation parameter employed by the first monitoring when the first set of conditions is not satisfied.

28. The method of a second node according to any of claims 22 to 27, wherein the first set of conditions comprises: the first multi-antenna related parameter and the second multi-antenna related parameter are both associated to a third multi-antenna related parameter.