CN113473491A

CN113473491A - User equipment, base station and method therein used for wireless communication

Info

Publication number: CN113473491A
Application number: CN202110731705.0A
Authority: CN
Inventors: 陈晋辉; 张晓博
Original assignee: Nantong Langheng Communication Technology Co ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-12-25
Filing date: 2017-12-25
Publication date: 2021-10-01
Anticipated expiration: 2037-12-25
Also published as: CN111108698A; WO2019126939A1; CN113473491B; CN113556751A; CN111108698B

Abstract

The application discloses a user equipment, a base station and a method therein for wireless communication. The method comprises the steps that a user equipment receives first control information and transmits a first wireless signal in sequence, the first control information is used for determining a first spatial parameter set, the first spatial parameter set comprises spatial parameters related to an uplink wireless signal of the user equipment on a first sub-frequency band, the target spatial parameter set comprises at least one spatial parameter which does not belong to the first spatial parameter set, and the target spatial parameter set is used for updating the spatial parameters related to the uplink wireless signal of the user equipment on the first sub-frequency band. The method and the device accelerate the recovery of the uplink beam, and solve the problem that the uplink beam allocation is invalid due to the fact that the user equipment cannot perform uplink channel access through the beam associated with the uplink wireless signal on the unlicensed spectrum.

Description

User equipment, base station and method therein used for wireless communication

The present application is a divisional application of the following original applications:

application date of the original application: 2017.12.25

- -application number of the original application: 201780094860.8

The invention of the original application is named: user equipment, base station and method therein used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a method and apparatus for supporting beam management on an Unlicensed Spectrum (Unlicensed Spectrum).

Background

In a conventional 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system, data transmission can only occur on a licensed spectrum, however, with a drastic increase in traffic, especially in some urban areas, the licensed spectrum may be difficult to meet the traffic demand. Communication over unlicensed spectrum in Release 13 and Release 14 was introduced by the cellular system and used for transmission of downlink and uplink data. To ensure compatibility with other Access technologies over unlicensed spectrum, LBT (Listen Before Talk) technology is adopted by LAA (Licensed Assisted Access) to avoid interference due to multiple transmitters simultaneously occupying the same frequency resources.

Currently, a technical discussion of 5G NR (New Radio Access Technology) is underway, wherein Massive MIMO (Multi-Input Multi-Output) becomes a research hotspot of next-generation mobile communication. In massive MIMO, to ensure that a user equipment can be flexibly switched under multiple beams, a related procedure of Beam Management (Beam Management) is defined and adopted in 5G NR; the user equipment may dynamically recommend a Candidate Beam (Candidate Beam) to the base station through the BRR (Beam Recovery Request) to replace the current Serving Beam (Serving Beam), and then the base station sends a BRR Response (Response) on the recommended Candidate Beam in a predefined time window to confirm to the user equipment that the BRR is known by the base station, and sends a signal using the new Candidate Beam in subsequent scheduling. When the above procedure is applied to unlicensed spectrum, a new mechanism needs to be designed.

Disclosure of Invention

When the beam management procedure operates on the unlicensed spectrum, since a UE (User Equipment) needs to perform LBT before uplink transmission, there may be a problem that an uplink beam allocated to the UE by a base station cannot pass through the UE-side LBT and thus cannot be used.

In view of the above, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method used in a user equipment for wireless communication, characterized by comprising:

receiving first control information, the first control information being used to determine a first set of spatial parameters, the first set of spatial parameters comprising spatial parameters associated with uplink wireless signals of the user equipment on a first subband;

transmitting a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters;

wherein the target spatial parameter set comprises at least one spatial parameter not belonging to the first set of spatial parameters, and the target spatial parameter set is used for updating the spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, the method described above is used for switching beams for uplink transmission in unlicensed spectrum.

As an embodiment, it is common knowledge that beam recovery is used for downlink transmission, and the method uses beam recovery for uplink transmission, so the method is innovative.

As an embodiment, it is common knowledge that a receiver of a wireless signal initiates a beam recovery request, and the method initiates a beam recovery request by a transmitter of a wireless signal, so the method is innovative.

As an example, the above method has the benefits of: the UE side may determine the availability of the current uplink signal beam according to the measurement of the received signal and recommend a new beam for transmitting or receiving the uplink signal, thereby shortening the time delay for uplink beam recovery.

As an example, another benefit of the above method is: the UE side may determine the quality of the current uplink signal beam according to the result of the energy detection and recommend a new beam for transmitting or receiving the uplink signal, thereby shortening the time delay for uplink beam recovery.

As an example, a further benefit of the above method is that: the UE side can use the authorized spectrum to send the beam recovery request aiming at the uplink signal of the unauthorized spectrum, thereby ensuring the reliability of the beam recovery request of the unauthorized spectrum.

As an example, a further benefit of the above method is: the UE side can send an uplink beam recovery request according to the measurement of the downlink signal by using the symmetry of the uplink and downlink channels in the TDD system, thereby shortening the time delay of uplink beam recovery.

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

monitoring third control information within a first time window, the third control information being used to determine updated spatial parameters associated with uplink wireless signals of the user equipment on the first sub-band.

As an example, the above method has the benefits of: the UE side performs the beam switching operation under the confirmation of the base station, and ensures that the two sides perform the beam switching simultaneously, thereby improving the robustness of the uplink beam switching.

According to one aspect of the present application, the method is characterized by including:

performing energy detection on the first sub-band to determine a first set of spatial parameters;

wherein the first set of spatial parameters is associated with the target set of spatial parameters.

As an example, the above method has the benefits of: the UE side can judge that the current uplink signal beam is not suitable for uplink wireless signal transmission according to the energy detection result, and therefore an uplink beam switching request is initiated.

As an example, the above method has the benefits of: the UE side may determine that there is a beam for uplink wireless signal transmission with better quality according to the result of the energy detection, thereby initiating the uplink beam switching request.

According to one aspect of the application, the energy detection comprises a first measurement using a second set of spatial parameters; wherein a third spatial parameter set is a spatial parameter set associated with the second spatial parameter set, the third spatial parameter set belonging to the first set of spatial parameters, the result of the first measurement being used to trigger the transmission of the first wireless signal, the target spatial parameter set being used in place of the third spatial parameter set.

According to one aspect of the application, the energy detection comprises K measurements, each taking K sets of spatial parameters; wherein the first spatial parameter set is one of the K spatial parameter sets, and K is a positive integer.

As an example, the above method has the benefits of: the UE side may determine, according to a result of performing energy detection using multiple reception beams, that a beam used for uplink wireless signal transmission with better quality exists, so as to initiate an uplink beam switching request.

receiving second control information, the second control information being used to determine a first set of time resources;

wherein the user equipment performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the user equipment transmits a radio signal using a frequency domain resource within the first subband on a time resource immediately following the first time unit.

As an embodiment, the above method is characterized in that: the base station allocates a specific time resource to the UE as required for energy detection, and the result of the energy detection performed by the UE in the specific time resource is only used for uplink beam recovery and is not used for uplink wireless signal transmission.

As an example, the above method has the benefits of: the time resource used for measuring the uplink beam recovery requirement is ensured, and the transmission efficiency and the calling mechanism of the system are not influenced too much.

According to one aspect of the application, the above method is characterized in that the transmission of the first radio signal is triggered by at least one of:

when all spatial parameters in the first set of spatial parameters are assumed, the energy detection measurement is below a first threshold;

when partial spatial parameters of the first set of spatial parameters are assumed, the energy detection measurements are all below a first threshold;

when a target spatial parameter of the set of target spatial parameters is adopted, the measurement result of the energy detection is not lower than a second threshold.

As an embodiment, the above method is characterized in that: the first threshold and the second threshold are used for comparison with the power detected by the energy.

As an example, the above method has the benefits of: the transmission of the uplink beam recovery request is managed by setting a threshold value, so that the flexibility of the system is increased.

receiving L sets of reference signals on the first subband;

wherein a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, L being a positive integer.

As an embodiment, the above method is characterized in that: the UE recommends a beam for uplink transmission or reception through measurement on the downlink reference signal group.

and sending a second wireless signal, wherein the updated spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-frequency band is used for sending or receiving the second wireless signal.

The present application discloses a method in a base station apparatus used for wireless communication, the method being characterized by comprising:

transmitting first control information, the first control information being used to determine a first set of spatial parameters;

receiving a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters;

wherein the first spatial parameter set includes spatial parameters associated with uplink wireless signals on the first sub-band by the sender of the first wireless signal, the target spatial parameter set includes at least one spatial parameter not belonging to the first spatial parameter set, and the target spatial parameter set is used for updating the spatial parameters associated with the uplink wireless signals on the first sub-band by the sender of the first wireless signal.

transmitting third control information within a first time window, the third control information indicating spatial parameters associated with an uplink wireless signal on the first sub-band by the updated transmitter of the first wireless signal.

According to one aspect of the present application, the above method is characterized in that a sender of the first wireless signal performs energy detection on the first sub-band to determine a first set of spatial parameters; wherein the first set of spatial parameters is associated with the target set of spatial parameters.

According to one aspect of the application, the method is characterized in that the energy detection comprises a first measurement using a second set of spatial parameters; wherein a third spatial parameter set is a spatial parameter set associated with the second spatial parameter set, the third spatial parameter set belonging to the first set of spatial parameters, the result of the first measurement being used to trigger the transmission of the first wireless signal, the target spatial parameter set being used in place of the third spatial parameter set.

According to one aspect of the application, the method is characterized in that the energy detection comprises K measurements, each of the K measurements using K sets of spatial parameters; wherein the first spatial parameter set is one of the K spatial parameter sets, and K is a positive integer.

transmitting second control information, the second control information being used to determine a first set of time resources;

wherein a sender of the first wireless signal performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the sender of the first wireless signal transmits a wireless signal using frequency domain resources within the first subband on a time resource immediately following the first time unit.

transmitting L sets of reference signals on the first subband;

and receiving a second wireless signal, wherein the updated spatial parameters associated with the uplink wireless signal of the sender of the first wireless signal on the first sub-band are used for sending or receiving the second wireless signal.

The application discloses a user equipment used for wireless communication, characterized by comprising:

a first receiver module, configured to receive first control information, where the first control information is used to determine a first set of spatial parameters, where the first set of spatial parameters includes spatial parameters associated with uplink wireless signals of the user equipment on a first subband;

a second transmitter module to transmit a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters;

As an embodiment, the user equipment used for wireless communication is characterized in that the first receiver module monitors third control information in a first time window, and the third control information is used for determining the updated spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band.

As an embodiment, the above user equipment for wireless communication is characterized in that the first receiver module performs energy detection on the first sub-band to determine a first set of spatial parameters; wherein the first set of spatial parameters is associated with the target set of spatial parameters.

As an embodiment, the above user equipment for wireless communication is characterized in that the energy detection comprises a first measurement, the first measurement using a second spatial parameter set; wherein a third spatial parameter set is a spatial parameter set associated with the second spatial parameter set, the third spatial parameter set belonging to the first set of spatial parameters, the result of the first measurement being used to trigger the transmission of the first wireless signal, the target spatial parameter set being used in place of the third spatial parameter set.

As an embodiment, the ue used for wireless communication is characterized in that the energy detection includes K measurements, and the K measurements respectively use K spatial parameter sets; wherein the first spatial parameter set is one of the K spatial parameter sets, and K is a positive integer.

As an embodiment, the above user equipment for wireless communication is characterized in that the first receiver module receives second control information, the second control information being used for determining the first set of time resources; wherein the user equipment performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the user equipment transmits a radio signal using a frequency domain resource within the first subband on a time resource immediately following the first time unit.

As an embodiment, the above user equipment for wireless communication is characterized in that the transmission of the first radio signal is triggered by at least one of:

As an embodiment, the above user equipment for wireless communication is characterized in that the first receiver module receives L reference signal groups on the first sub-band; wherein a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, L being a positive integer.

As an embodiment, the user equipment used for wireless communication is characterized in that the second transmitter module transmits a second wireless signal, and the updated spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band is used for transmitting or receiving the second wireless signal.

The application discloses a base station device used for wireless communication, characterized by comprising:

a first transmitter module that transmits first control information, the first control information being used to determine a first set of spatial parameters;

a second receiver module to receive a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters;

As an embodiment, the base station device used for wireless communication is characterized in that the first transmitter module transmits third control information in a first time window, and the third control information indicates a spatial parameter associated with an uplink wireless signal on the first sub-band from an updated transmitter of the first wireless signal.

As an embodiment, the above base station apparatus for wireless communication is characterized in that the transmitter of the first wireless signal performs energy detection on the first sub-band to determine a first set of spatial parameters; wherein the first set of spatial parameters is associated with the target set of spatial parameters.

As an embodiment, the base station apparatus for wireless communication described above is characterized in that the energy detection includes a first measurement, the first measurement using a second spatial parameter set; wherein a third spatial parameter set is a spatial parameter set associated with the second spatial parameter set, the third spatial parameter set belonging to the first set of spatial parameters, the result of the first measurement being used to trigger the transmission of the first wireless signal, the target spatial parameter set being used in place of the third spatial parameter set.

As an embodiment, the base station apparatus used for wireless communication described above is characterized in that the energy detection includes K measurements, and the K measurements respectively employ K spatial parameter sets; wherein the first spatial parameter set is one of the K spatial parameter sets, and K is a positive integer.

As an embodiment, the above base station apparatus used for wireless communication is characterized in that the first transmitter module transmits second control information, the second control information being used for determining the first set of time resources; wherein a sender of the first wireless signal performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the sender of the first wireless signal transmits a wireless signal using frequency domain resources within the first subband on a time resource immediately following the first time unit.

As an embodiment, the above base station apparatus used for wireless communication is characterized in that the transmission of the first wireless signal is triggered by at least one of:

As an embodiment, the above base station apparatus used for wireless communication is characterized in that the first transmitter module transmits L reference signal groups on the first sub-band; wherein a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, L being a positive integer.

As an embodiment, the above base station apparatus used for wireless communication is characterized in that the second receiver module receives a second wireless signal, and the updated spatial parameter associated with the uplink wireless signal of the sender of the first wireless signal on the first sub-band is used for transmitting or receiving the second wireless signal.

As an example, compared with the conventional scheme, the method has the following advantages:

the user equipment measures the received signals by using the receiving wave beam so as to determine to send an uplink wave beam recovery request, thereby accelerating the recovery of the uplink wave beam;

the energy detection is used for triggering an uplink beam recovery request by the user equipment, so that the problem of uplink beam allocation failure caused by the fact that the user equipment cannot perform uplink channel access through a beam associated with an uplink wireless signal is solved;

and the uplink beam recovery request on the unlicensed spectrum is sent by using the licensed spectrum, so that the reliability of the transmission of the uplink beam recovery request is improved.

Drawings

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

fig. 1 shows a flow chart of first control information and a first wireless signal according to an embodiment of the application;

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

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

figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;

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

FIG. 6 shows a schematic diagram of a first set of spatial parameters and a target set of spatial parameters according to an embodiment of the present application;

FIG. 7 is a schematic diagram illustrating a first set of spatial parameters and a target set of spatial parameters according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a second set of spatial parameters, a third set of spatial parameters, a first set of spatial parameters, and a target set of spatial parameters according to an embodiment of the present application;

FIG. 9 shows a schematic of K measurements according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a first set of time resources according to an embodiment of the present application;

FIG. 11 shows a schematic diagram in which the transmission of a first wireless signal is triggered, according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of L sets of reference signals, according to one embodiment of the present application;

FIG. 13 is a diagram illustrating a first set of spatial parameters, a target set of spatial parameters, and a second wireless signal according to an embodiment of the present application;

figure 14 shows a schematic diagram of an antenna structure of a user equipment according to an embodiment of the present application;

FIG. 15 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 16 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flowchart of first control information and a first wireless signal, as shown in fig. 1.

In embodiment 1, the ue in this application first receives first control information and then transmits a first radio signal; the first control information is used to determine a first set of spatial parameters comprising spatial parameters associated with uplink wireless signals of the user equipment on a first subband; the first wireless signal is used to determine a target set of spatial parameters; the target spatial parameter set includes at least one spatial parameter not belonging to the first set of spatial parameters, and is used to update spatial parameters associated with uplink wireless signals of the user equipment on the first subband.

As an example, "used to determine" in this application refers to an explicit indication.

As an example, "used to determine" in this application refers to an implicit indication.

As an example, "used to determine" in the present application means used to calculate.

As one embodiment, the spatial parameters include spatial transmission parameters.

As one embodiment, the spatial parameters include spatial reception parameters.

As an embodiment, the spatial parameter is a spatial transmission parameter or a spatial reception parameter.

As an embodiment, the spatial transmission parameters are used to generate one transmission beam.

As one embodiment, the spatial transmit parameters are used to generate a transmit analog beamforming matrix.

As one example, the spatial transmit parameters include parameters used to control a phase shifter (phase shifter) that generates a transmit beam on the radio frequency link.

For one embodiment, the spatial transmission parameters include a digital precoding vector of a transmitting end.

As one embodiment, the spatial transmission parameters include a spacing between antennas used to transmit wireless signals.

As one embodiment, the spatial transmission parameter includes a number of antennas used to transmit wireless signals.

As an embodiment, the spatial receive parameters are used to generate a receive beam.

As one embodiment, the spatial receive parameters are used to generate a receive analog beamforming matrix.

As an example, the spatial receive parameters are used to control parameters of a phase shifter (phase shifter) on the radio frequency link that generates a receive beam.

As an embodiment, the spatial receiving parameter is a digital multi-antenna receiving vector at a receiving end.

As one embodiment, the spatial transmission parameters include a spacing between antennas used to receive wireless signals.

As one embodiment, the spatial transmission parameter includes a number of antennas used to receive wireless signals.

As an embodiment, one of the sets of spatial parameters includes only spatial reception parameters and does not include spatial transmission parameters.

As an embodiment, one of the sets of spatial parameters includes both spatial reception parameters and spatial transmission parameters.

As an embodiment, one of the sets of spatial parameters includes only spatial transmission parameters and does not include spatial reception parameters.

As one embodiment, the first sub-band is deployed in unlicensed spectrum.

As one embodiment, the uplink wireless signal includes only uplink data and an uplink DMRS.

As one embodiment, the uplink wireless signal includes only uplink control information, uplink data, and an uplink DMRS.

As an embodiment, the uplink control information includes at least one of { CRI, RI, PMI, CQI, L1-RSRP, L1-RSRQ, BRR }.

As an embodiment, the transmission Channel corresponding to the uplink data is a DL-SCH (Downlink Shared Channel).

As an embodiment, the uplink wireless signal includes uplink control information, uplink data, an uplink DMRS, and an SRS.

As an embodiment, the uplink wireless signal includes uplink control information, uplink data, an uplink DMRS, and a PTRS.

As one embodiment, the uplink radio signal includes a RACH sequence, uplink control information, uplink data, an uplink DMRS, and a PTRS.

As one embodiment, frequency domain resources within a second sub-band are used for transmitting the first wireless signal, the second sub-band and the first sub-band being orthogonal in frequency domain.

As one embodiment, frequency domain resources within the first sub-band are used to transmit the first wireless signal.

As an embodiment, the second sub-band is deployed in a licensed spectrum.

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

As an embodiment, the first control information is information carried by one field in one DCI.

As an embodiment, a physical layer Control Channel (physical Control Channel) is used for transmitting the first Control information.

As an embodiment, a Downlink Physical layer Control Channel (Downlink Physical Control Channel) is used for transmitting the first Control information.

As an embodiment, the first control Information is an IE (Information Element).

As an embodiment, a Higher-layer signaling (high-layer signaling) is used for transmitting the first control information.

As an embodiment, RRC (Radio Resource Control) signaling is used to transmit the first Control information.

As an embodiment, the first control information explicitly indicates the first set of spatial parameters.

As one embodiment, the first control information implicitly indicates the first set of spatial parameters.

As an embodiment, at least two downlink radio signals are used for determining the first set of spatial parameters, one of the two downlink radio signals being used for transmitting the first control information.

As an embodiment, the first control information is used to determine a fifth set of reference signals transmitted prior to the first control information.

As an embodiment, the fifth reference signal group is an uplink reference signal and is transmitted by the ue.

As an embodiment, the reference signals in the fifth reference signal group are srs (sounding reference signal).

As an embodiment, the fifth reference signal group is an SRS on one SRS resource.

As an embodiment, the fifth reference signal group is a downlink reference signal and is transmitted by the base station apparatus.

As an embodiment, the reference signals in the fifth reference Signal group are CSI-RS (Channel State Information reference signals).

As an embodiment, the fifth reference signal group is CSI-RS on one CSI-RS resource.

As an example, the reference signals in the fifth reference Signal group are SS (Synchronization Signal).

As an example, the fifth set of reference signals is an SS on an SS block.

As an embodiment, the first control information is used to determine a first index in a first configuration table, the first index being used to determine the fifth reference signal group.

As an embodiment, the first set of spatial parameters includes a set of spatial parameters used for receiving the fifth set of reference signals, and the set of spatial parameters used for receiving the fifth set of reference signals is used for receiving at least one uplink wireless signal of the user equipment on a first sub-band.

As an embodiment, the first control information is used to determine that the first set of spatial parameters includes a set of spatial parameters used to transmit the fifth set of reference signals, and the set of spatial parameters used to transmit the fifth set of reference signals is used to transmit at least one uplink wireless signal of the user equipment on a first subband.

As an embodiment, the first set of spatial parameters includes a set of spatial parameters used for receiving the fifth set of reference signals, and the set of spatial parameters used for receiving the fifth set of reference signals is used for transmitting at least one uplink radio signal of the user equipment on a first sub-band.

As an embodiment, the first set of spatial parameters includes a set of spatial parameters used for transmitting the fifth set of reference signals, and the set of spatial parameters used for transmitting the fifth set of reference signals is used for receiving at least one uplink wireless signal of the user equipment on a first sub-band.

As an embodiment, the first control information is used to determine: the antenna port used for transmitting the at least one uplink wireless signal of the user equipment on the first sub-band and the antenna port used for transmitting the fifth reference signal group are QCL (Quasi Co-located).

As an embodiment, the first control information is used to determine: an antenna port of a DMRS (Demodulation Reference Signal) used to transmit at least one uplink wireless Signal of the user equipment on the first sub-band and an antenna port used to transmit the fifth Reference Signal group are QCL (Quasi Co-located).

As an example, one said antenna port means that a channel experienced by one symbol transmitted on one antenna port may be used to infer a channel experienced by another symbol transmitted on the same antenna port.

As an example, the inferences are intended to be identical.

As one example, the inference is referred to as being approximate.

As an example, the inference is used to compute.

As an embodiment, the symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As one embodiment, the symbols are DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) symbols.

As an example, two antenna ports being QCL means that the large scale characteristics of the channel experienced by one symbol transmitted on one antenna port can be used to infer the large scale characteristics of the channel experienced by one symbol transmitted on the other antenna port.

For one embodiment, the large-scale characteristics include one or more of delay spread, Doppler (Doppler) shift, average gain, average delay, and spatial reception parameters.

For one embodiment, the large-scale characteristics include one or more of delay spread, Doppler (Doppler) shift, average gain, average delay, spatial receive parameters, and spatial transmit parameters.

As an embodiment, the first control information is used to determine: an antenna port of a DMRS (Demodulation Reference Signal) used to transmit at least one uplink wireless Signal of the user equipment on the first sub-band and an antenna port used to transmit the fifth Reference Signal group are spatially QCL (Quasi Co-located).

As an embodiment, the two antenna ports are spatially QCL means that spatial reception parameters used for receiving one symbol transmitted on one antenna port are used to infer spatial reception parameters used for receiving one symbol transmitted on the other antenna port, the two antenna ports being two antenna ports for transmitting uplink wireless signals or two downlink antenna ports for transmitting downlink wireless signals.

As an embodiment, the two antenna ports are spatially QCL means that spatial transmission parameters used for transmitting one symbol transmitted on one antenna port are used to infer spatial transmission parameters used for transmitting one symbol transmitted on the other antenna port, the two antenna ports being two antenna ports for transmitting uplink wireless signals or two downlink antenna ports for transmitting downlink wireless signals.

As an embodiment, two antenna ports are spatially QCL means that spatial transmit parameters used to transmit one symbol transmitted on one antenna port are used to infer spatial receive parameters used to receive one symbol transmitted on the other antenna port; one of the two antenna ports is an antenna port for transmitting an uplink wireless signal, and the other is an antenna port for transmitting a downlink wireless signal.

As an embodiment, two antenna ports are spatially QCL means that spatial reception parameters used to receive one symbol transmitted on one antenna port are used to infer spatial transmission parameters used to transmit one symbol transmitted on the other antenna port; one of the two antenna ports is an antenna port for transmitting an uplink wireless signal, and the other is an antenna port for transmitting a downlink wireless signal.

As an embodiment, the spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band is used for transmitting the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, the spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band is used for receiving the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, the spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band is used to generate a transmission beam for transmitting the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, the spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band is used to generate a receiving beam for receiving the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band include a transmit beamforming matrix used for transmitting the uplink wireless signals of the user equipment on the first sub-band.

As an embodiment, the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band include generating a receive beamforming matrix for receiving the uplink wireless signals of the user equipment on the first sub-band.

As an embodiment, the first wireless signal explicitly indicates the target set of spatial parameters.

As one embodiment, the first wireless signal implicitly indicates the target set of spatial parameters.

As an embodiment, the spatial parameters in the target set of spatial parameters are used for transmitting uplink wireless signals of the user equipment on the first sub-band.

As an embodiment, the spatial parameters in the target set of spatial parameters are used for receiving uplink wireless signals of the user equipment on the first sub-band.

As an embodiment, spatial parameters within the target set of spatial parameters are used to replace a fifth set of spatial parameters in the first set of spatial parameters.

As an embodiment, after the target spatial parameter set is used to update the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band, the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band do not include the fifth spatial parameter set.

As an embodiment, the spatial parameters in the target set of spatial parameters are used to append the spatial parameters associated with the uplink wireless signal of the user equipment on the first subband.

As an embodiment, before the target set of spatial parameters is used to update the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band, the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band do not include the target set of spatial parameters.

As an embodiment, after the target set of spatial parameters is used to update the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band, the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band include the target set of spatial parameters.

As an embodiment, third control information is monitored in a first time window, and the third control information is used for determining the updated spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, a physical layer control channel is used for transmitting the third control information.

As an embodiment, the third control information is a DCI.

As an embodiment, the third control information is information carried by one field in one DCI.

As an embodiment, the monitoring refers to the ue performing blind detection (blid decoding) on the received wireless signal on a given time-frequency resource pool.

As an embodiment, the monitoring means that the ue does not determine whether the third control information is transmitted before successfully decoding.

As an embodiment, the third control information explicitly indicates the updated spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-band.

As an embodiment, the third control information implicitly indicates the updated spatial parameters associated with the uplink radio signal of the user equipment on the first sub-band.

As one embodiment, the first time window is after the first wireless signal is transmitted.

As one embodiment, the first time window is preconfigured.

As an embodiment, the first time window is configured by default.

As an embodiment, the third control information is used for determining spatial parameters associated with the target set of spatial parameters.

As an embodiment, the third control information is used to determine that the spatial parameter recommended by the user equipment through the first radio signal is used for transmitting or receiving an uplink radio signal of the user equipment on the subsequent first sub-band.

As an embodiment, the third control information is used to determine that the receiver of the first wireless signal correctly received the first wireless signal.

As an embodiment, the user equipment monitors the third control information on the first sub-band.

As an embodiment, the user equipment monitors the third control information on the second sub-band.

As an embodiment, the spatial parameter associated with the target set of spatial parameters is used for monitoring the third control information.

As an embodiment, the receive beams generated with the spatial parameters associated with the target set of spatial parameters are used to monitor the third control information.

As an embodiment, the receive beams generated using the spatial parameters associated with the target set of spatial parameters are spatially correlated with the receive beams generated using the target set of spatial parameters.

As an embodiment, the receive beams generated using the spatial parameters associated with the target set of spatial parameters are spatially correlated with the transmit beams generated using the target set of spatial parameters.

As one embodiment, energy detection is performed on the first sub-band to determine a first set of spatial parameters; wherein the first set of spatial parameters is associated with the target set of spatial parameters.

As an example, one time of the energy detection means: the user equipment monitors received power over a time period within a given duration.

As an example, one time of the energy detection means: the user equipment monitors received energy over a time period within a given duration.

As an example, one time of the energy detection means: the user equipment sensing (Sense) for all radio signals on a given frequency domain resource over a time period within a given duration to obtain a given power; the given frequency domain resource is the first sub-band.

As an example, one time of the energy detection means: the user equipment sensing (Sense) for all radio signals on a given frequency domain resource over a time period within a given duration to obtain a given energy; the given frequency domain resource is the first sub-band.

As an embodiment, the energy detection is implemented in a manner defined in section 15 of 3GPP TS 36.213.

As an embodiment, the energy detection is implemented by an energy detection manner in LTE LAA.

As an embodiment, the energy detection is an energy detection in LBT (Listen Before Talk).

As an embodiment, the energy detection is implemented by an energy detection manner in WiFi.

As an embodiment, the energy detection is implemented by measuring RSSI (Received Signal Strength Indication).

As an embodiment, receive beams generated with spatial parameters associated with the first set of spatial parameters are used to perform the energy detection on the first subband.

As an embodiment, the receive beams generated with the spatial parameters of the first set of spatial parameters are used to perform energy detection on the first subband.

As one embodiment, the receive beams generated using the spatial parameters in the first set of spatial parameters are spatially correlated with the transmit beams generated using the spatial parameters in the target set of spatial parameters.

As an embodiment, the receive beams generated using the spatial parameters in the first set of spatial parameters are spatially correlated with the receive beams generated using the spatial parameters in the target set of spatial parameters.

As an embodiment, the receive beams used to perform the energy detection on the first subband are spatially correlated with the transmit beams generated with the spatial parameters of the first set of spatial parameters.

As an embodiment, the receive beams used to perform the energy detection on the first subband are spatially correlated with receive beams generated using spatial parameters of the target set of spatial parameters.

As an embodiment, the energy detection comprises a first measurement employing a second set of spatial parameters; wherein a third spatial parameter set is a spatial parameter set associated with the second spatial parameter set, the third spatial parameter set belonging to the first set of spatial parameters, the result of the first measurement being used to trigger the transmission of the first wireless signal, the target spatial parameter set being used in place of the third spatial parameter set.

As an embodiment, said first measurement is a said energy detection.

As an embodiment, the receive beams generated with the second set of spatial parameters are used to perform the first measurement.

As an embodiment, the transmit beams generated using the third set of spatial parameters are spatially correlated with the receive beams generated using the second set of spatial parameters.

As an embodiment, the receive beams generated using the third set of spatial parameters are spatially correlated with the receive beams generated using the second set of spatial parameters.

As an embodiment, the third set of spatial parameters is the fifth set of spatial parameters.

As an embodiment, energy detection is performed on the first sub-band using the second spatial parameter group on M1 slots and it is determined whether the M1 slots are in an idle (idle) state, respectively, the number of slots in the idle state among the M1 slots is used to trigger transmission of the first radio signal, and the M1 is a positive integer.

As an example, the M1 time slots are consecutive in time.

As an example, the M1 time slots are not consecutive in time.

As an embodiment, the number of time slots in the idle state among the M1 time slots is not greater than the third threshold.

As an embodiment, the third threshold is configured by default.

As an embodiment, the third threshold is configured by the base station.

As an embodiment, the number of consecutive time slots in the idle state in the M1 time slots is not greater than the fourth threshold.

As an embodiment, the fourth threshold is configured by default.

As an embodiment, the fourth threshold is configured by the base station.

As an embodiment, energy detection is performed on the first sub-band using the second set of spatial parameters on M2 slots and it is determined whether the M2 slots are in busy (busy) states, respectively, the number of slots in busy states of the M2 slots is used to trigger transmission of the first radio signal, and the M2 is a positive integer.

As an example, the M2 time slots are consecutive in time.

As an example, the M2 time slots are not consecutive in time.

As an embodiment, the number of slots in a busy state among the M2 slots is not less than a fifth threshold.

As an embodiment, the fifth threshold is configured by default.

As an embodiment, the fifth threshold is configured by the base station.

As an embodiment, the number of consecutive busy slots of the M2 slots is not less than the sixth threshold.

As an embodiment, the sixth threshold is configured by default.

As an embodiment, the sixth threshold is configured by the base station.

As an example, the time length of the time slot is 9 microseconds.

As an example, the time length of the time slot is 16 microseconds.

As an embodiment, if the power of energy detection performed by the user equipment in a time slot is less than a first energy detection threshold for at least a first duration, then the time slot is in the idle state; otherwise, this slot is in the busy state.

As one embodiment, the first duration is 4 microseconds in length.

As an embodiment, the average power obtained by performing energy detection on the first sub-band using the second set of spatial parameters over M3 slots is not less than a first power threshold, the M3 being a positive integer.

As an example, the M3 time slots are consecutive in time.

As an example, the M3 time slots are not consecutive in time.

As an embodiment, the energy detection includes K measurements, each of the K measurements using K sets of spatial parameters; wherein the first spatial parameter set is one of the K spatial parameter sets, and K is a positive integer.

As an embodiment, the K measurements refer to that the ue generates K receive beams by using K spatial parameter sets respectively, where the K receive beams correspond to the K spatial parameter sets one to one, and the K receive beams are used to perform energy detection in K time resource pools respectively.

As an example, the K measurements are K energy measurements.

As an embodiment, the K time resource pools include the same number of time units.

As an embodiment, the K time resource pools include different numbers of time units.

As an embodiment, the K time resource pools are configured by the base station.

As an embodiment, the K time resource pools are configured by default.

As an embodiment, the K sets of spatial parameters are spatially QCL with K sets of reference signals, respectively.

As one embodiment, base station notification is used to determine the K sets of spatial parameters.

As an embodiment, a user-autonomous decision is used to determine the K sets of spatial parameters.

As an embodiment, the K measurements comprise the first measurement.

As an embodiment, the K measurements comprise a second measurement, the second measurement employing the first set of spatial parameters.

As an embodiment, the result of the second measurement is used to trigger the transmission of the first wireless signal.

As an embodiment, the result of the second measurement is better than the result of the first measurement for channel access.

As an embodiment, the second measured received power is smaller than the first measured received power.

As an embodiment, the ue performs the first measurement and the second measurement in a first time resource pool and a second time resource pool, respectively, where the number of idle timeslots obtained by the second measurement is greater than the number of idle timeslots obtained by the first measurement.

As an embodiment, the ue performs the first measurement and the second measurement in a first time resource pool and a second time resource pool, respectively, where the number of busy slots obtained by the second measurement is smaller than the number of busy slots obtained by the first measurement.

As an embodiment, the K measurements consist of the second measurement and a third set of measurements comprising other ones of the K measurements than the second measurement.

As an embodiment, the second measurement results are better than the measurements in the third measurement set for channel access.

As an embodiment, the K time resource pools consist of a second time resource pool in which the second measurement is used to perform energy detection and a third time resource pool set including other ones of the K time resource pools except the second time resource pool.

As an embodiment, the second measured received power is smaller than the measured received powers in the third measurement set.

As an embodiment, the number of free slots in the second time resource pool is greater than the number of free slots in any time resource pool in the third measurement set.

As an embodiment, the number of busy slots in the second time resource pool is less than the number of busy slots in any time resource pool in the third measurement set.

As an embodiment, second control information is received, the second control information being used to determine a first set of time resources; wherein the user equipment performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the user equipment transmits a radio signal using a frequency domain resource within the first subband on a time resource immediately following the first time unit.

As a sub-embodiment of the above embodiment, it is common knowledge that energy detection is used for subsequent wireless signal transmission, and the above method uses energy detection for determining report content, so the above method is innovative.

For one embodiment, the first set of time resources includes the K pools of time resources.

As an embodiment, the first set of time resources comprises time resources for performing the first measurement.

For one embodiment, the first set of time resources comprises a plurality of time slots.

As an embodiment, time resources in the first set of time resources are not used for Channel access (Channel access).

As an embodiment, energy detection on time resources within the first set of time resources is not used for channel access.

As an embodiment, there is a first subset of time resources within the first set of time resources, time resources of the first subset of time resources belonging to the first set of time resources, the first subset of time resources not being used for channel access.

As an embodiment, a first energy detection is used to determine that the user equipment transmits a radio signal using frequency domain resources within the first sub-band on time resources immediately following the first time unit, the time resources at which the first energy detection belongs not to the first set of time resources.

As an embodiment, a second energy detection is used to determine that the user equipment is unable to transmit a radio signal using frequency domain resources within the first subband on time resources immediately following the first time unit, the time resources at which the second energy detection belongs not to the first set of time resources.

As one embodiment, the transmission of the first wireless signal is triggered by at least one of:

when all spatial parameters in the first set of spatial parameters are adopted, the measurement result of the energy detection is not less than a first threshold value;

when partial spatial parameters of the first set of spatial parameters are employed, none of the energy detection measurements is less than a first threshold;

the measurement of the energy detection is less than a second threshold when a target spatial parameter of the set of target spatial parameters is employed.

As an embodiment, all spatial parameters in the first set of spatial parameters are used to generate K1 receive beams respectively, the K1 receive beams are used to perform the energy detection respectively resulting in K1 energy detection results, the K1 is a positive integer.

As an embodiment, the condition that none of the K1 energy detection measurements is less than the first threshold is used to trigger the transmission of the first wireless signal.

As an embodiment, a condition that none of the K2 energy detection measurements of the K1 energy detection measurements is less than a first threshold is used to trigger the transmission of the first wireless signal, the K2 being a positive integer less than the K1.

As an embodiment, the first measurement is one of the measurements of the K1 energy detections.

As one embodiment, the first measurement is a number of busy slots.

As one embodiment, the first measurement is an average received power.

As an embodiment, the first threshold is configured by a base station.

As an embodiment, the second threshold is configured by a base station.

As one embodiment, the first threshold is configured by default.

As an embodiment, the second threshold is configured by default.

As an embodiment, the first threshold is a unitless positive integer.

As one embodiment, the unit of the first threshold is dBm.

As one example, the unit of the first threshold is milliwatts.

As an embodiment, the second threshold is a unitless positive integer.

As one embodiment, the unit of the second threshold is dBm.

As one example, the second threshold is in units of milliwatts.

As an embodiment, the first threshold is the third threshold.

As an embodiment, the user equipment receives L sets of reference signals on the first subband; wherein a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, L being a positive integer.

As an embodiment, the L reference signal groups are transmitted in the first subband.

As an embodiment, the beams generated by the fourth set of spatial parameters are used to generate transmit beams for transmitting the first set of reference signals.

As an embodiment, the beams generated by the fourth set of spatial parameters are used to generate receive beams for receiving the first set of reference signals.

As an embodiment, the L reference signal groups are respectively measured to obtain L channel quality values corresponding to the L reference signal groups one to one, and the channel quality value corresponding to the first reference signal group is the best channel quality value among the L channel quality values.

For one embodiment, the channel quality value corresponds to Reference Signal Received Power (RSRP).

For one embodiment, the channel quality value corresponds to a Modulation Coding Scheme (MCS).

As one embodiment, beams generated using the fourth set of spatial parameters are spatially correlated with beams generated using the target set of spatial parameters.

As an embodiment, beams generated using the fourth set of spatial parameters are spatially correlated with beams generated using the first set of spatial parameters.

As an embodiment, the target set of spatial parameters is the fourth set of spatial parameters.

As an embodiment, the target set of spatial parameters is the first set of spatial parameters.

As one embodiment, the first set of spatial parameters is used to generate a first receive beam.

As one embodiment, the fourth set of spatial parameters is used to generate a fourth transmit beam for receiving the first set of reference signals.

As one embodiment, the fourth set of spatial parameters is used to generate a fourth receive beam for receiving the first set of reference signals.

As an embodiment, the target set of spatial parameters is used to generate a target receive beam for receiving the third uplink wireless signal.

As an embodiment, the energy detection performed with the first receive beam is used to determine the time resource occupied by the third uplink wireless signal.

As an embodiment, an angular coverage of the fourth receive beam is the same as an angular coverage of a transmit beam used to transmit the third uplink wireless signal.

As an embodiment, the angular coverage of the fourth transmit beam is the same as the angular coverage of the target receive beam.

As an embodiment, the target spatial parameter set is used to generate a target transmission beam for transmitting the fourth uplink wireless signal.

As an embodiment, the energy detection performed with the first receive beam is used to determine the time resource occupied by the fourth uplink wireless signal.

As an embodiment, the angular coverage of the fourth receive beam is the same as the angular coverage of the target transmit beam.

As an embodiment, the angular coverage of the fourth transmit beam is the same as the angular coverage of the receive beam used to receive the fourth uplink wireless signal.

As one embodiment, the first receive beam is spatially correlated with the fourth receive beam.

As one embodiment, the first receive beam is spatially correlated with the target transmit beam.

As one embodiment, the fourth transmit beam is spatially correlated with the target receive beam.

As one embodiment, the fourth receive beam is spatially correlated with the target transmit beam.

As an embodiment, the two beams are spatially correlated, which means that the coverage angle ranges of the two beams in space overlap.

For one embodiment, the two beams are spatially correlated in that the angular coverage of one beam is within the angular coverage of the other beam.

As an embodiment, the two beams are spatially correlated, which means that the coverage areas of the two beams overlap in space.

As an example, the two beams are spatially correlated in the sense that the coverage area of one beam is spatially within the coverage area of the other beam.

As an embodiment, the two beams are spatially correlated, which means that the coverage angle ranges of the two beams are the same in space.

As an embodiment, the two beams are spatially correlated, which means that the coverage area of the two beams is the same in space.

As an embodiment, the ue transmits a second radio signal, and the updated spatial parameter associated with the uplink radio signal of the ue on the first sub-band is used to transmit or receive the second radio signal.

As one embodiment, the target set of spatial parameters is used to transmit the second wireless signal.

For one embodiment, the target set of spatial parameters is used to receive the second wireless signal.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating a network architecture 200 of NR 5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 connects to the EPC/5G-CN210 through the S1/NG interface. The EPC/5G-CN210 includes MME/AMF/UPF211, other MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).

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

As an embodiment, the gNB203 corresponds to the base station in this application.

As an embodiment, the UE201 supports wireless communication for data transmission over an unlicensed spectrum.

As one embodiment, the gNB203 supports wireless communication for data transmission over unlicensed spectrum.

As an embodiment, the UE201 supports wireless communication for massive MIMO.

As an embodiment, the gNB203 supports wireless communication for massive MIMO.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (gNB or eNB) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

As an example, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As an example, the radio protocol architecture in fig. 3 is applicable to the base station in the present application.

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

As an embodiment, the first control information in the present application is generated in the MAC sublayer 302 or the RRC sublayer 306.

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

As an embodiment, the third control information in the present application is generated in the PHY 301.

As an example, the L reference signal groups in the present application are generated in the PHY 301.

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

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a given user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.

Controller/processor 440, scheduler 443, memory 430, receive processor 412, transmit processor 415, MIMO transmit processor 441, MIMO detector 442, transmitter/receiver 416 and antennas 420 may be included in base station apparatus (410).

Controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, MIMO transmit processor 471, MIMO detector 472, transmitter/receiver 456, and antenna 460 may be included in a user equipment (UE 450).

In the downlink transmission, the processing related to the base station apparatus (410) may include:

upper layer packets arrive at controller/processor 440, controller/processor 440 provides packet header compression, encryption, packet segmentation concatenation and reordering, and demultiplexing of the multiplex between logical and transport channels to implement the L2 layer protocol for the user plane and control plane; the upper layer packet may include data or control information, such as DL-SCH (Downlink Shared Channel);

the controller/processor 440 may be associated with a memory 430 that stores program codes and data. Memory 430 may be a computer-readable medium;

controller/processor 440 informs scheduler 443 of the transmission requirement, scheduler 443 is configured to schedule the empty resource corresponding to the transmission requirement, and informs controller/processor 440 of the scheduling result;

controller/processor 440 passes control information for downlink transmission to transmit processor 415 resulting from processing of uplink reception by receive processor 412;

a transmit processor 415 receives the output bit stream of the controller/processor 440, implements various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal) generation, etc.;

MIMO transmit processor 441 performs spatial processing (e.g., multi-antenna precoding, digital beamforming) on the data symbols, control symbols, or reference signal symbols and outputs a baseband signal to transmitter 416;

MIMO transmit processor 441 outputs analog spatial transmit parameters to transmitter 416 for analog transmit beamforming;

a transmitter 416 for converting the baseband signals provided by MIMO transmit processor 441 into radio frequency signals and transmitting them via antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream; each transmitter 416 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downlink signal; analog transmit beamforming is processed in transmitter 416.

In the downlink transmission, the processing related to the user equipment (UE450) may include:

receiver 456 is configured to convert radio frequency signals received via antenna 460 into baseband signals for provision to MIMO detector 472; analog receive beamforming is processed in the receiver 456;

a MIMO detector 472 for MIMO detection of the signals received from receiver 456, providing a MIMO detected baseband signal to receive processor 452;

the receive processor 452 extracts analog receive beamforming related parameters for output by the MIMO detector 472 to the receiver 456;

receive processor 452 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, etc.;

controller/processor 490 receives the bit stream output by receive processor 452 and provides packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement the L2 layer protocol for the user plane and control plane;

the controller/processor 490 may be associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium;

controller/processor 490 passes control information for downlink reception resulting from the processing of uplink transmissions by transmit processor 455 to receive processor 452.

As an embodiment, the UE450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE450 apparatus at least: receiving first control information, the first control information being used to determine a first set of spatial parameters comprising spatial parameters associated with uplink wireless signals of the UE450 device on a first subband; transmitting a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters; wherein the target set of spatial parameters comprises at least one spatial parameter not belonging to the first set of spatial parameters, and the target set of spatial parameters is used for updating spatial parameters associated with uplink wireless signals of the UE450 device on the first sub-band.

As an embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first control information, the first control information being used to determine a first set of spatial parameters comprising spatial parameters associated with uplink wireless signals of the UE450 device on a first subband; transmitting a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters; wherein the target set of spatial parameters comprises at least one spatial parameter not belonging to the first set of spatial parameters, and the target set of spatial parameters is used for updating spatial parameters associated with uplink wireless signals of the UE450 device on the first sub-band.

As one embodiment, the gNB410 apparatus 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 gNB410 apparatus at least: transmitting first control information, the first control information being used to determine a first set of spatial parameters; receiving a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters; wherein the first spatial parameter set includes spatial parameters associated with uplink wireless signals on the first sub-band by the sender of the first wireless signal, the target spatial parameter set includes at least one spatial parameter not belonging to the first spatial parameter set, and the target spatial parameter set is used for updating the spatial parameters associated with the uplink wireless signals on the first sub-band by the sender of the first wireless signal.

As an embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting first control information, the first control information being used to determine a first set of spatial parameters; receiving a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters; wherein the first spatial parameter set includes spatial parameters associated with uplink wireless signals on the first sub-band by the sender of the first wireless signal, the target spatial parameter set includes at least one spatial parameter not belonging to the first spatial parameter set, and the target spatial parameter set is used for updating the spatial parameters associated with the uplink wireless signals on the first sub-band by the sender of the first wireless signal.

As an embodiment, the UE450 corresponds to a user equipment in the present application.

As an embodiment, the gNB410 corresponds to a base station in the present application.

For one embodiment, at least three of the receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 are configured to receive the first control information.

As an example, at least the first three of the transmitter 456, MIMO transmit processor 471, transmit processor 455, and controller/processor 490 may be used to transmit the first wireless signal.

For one embodiment, at least three of the receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 are used to monitor the third control information.

As an example, at least the first three of the receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 may be configured to receive the second control information.

As an example, at least the first three of the receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 may be configured to receive the L reference signal sets.

For one embodiment, at least three of the transmitter 456, MIMO transmit processor 471, transmit processor 455, and controller/processor 490 are used to transmit the second wireless signal.

As an example, at least three of the transmitter 416, MIMO transmit processor 441, transmit processor 415, and controller/processor 440 may be used to transmit the first control information.

For one embodiment, at least the first three of the receiver 416, MIMO detector 442, receive processor 412, and controller/processor 440 are configured to receive the first wireless signal.

As an example, at least three of the transmitter 416, MIMO transmit processor 441, transmit processor 415, and controller/processor 440 may be used to transmit the third control information.

As an example, at least three of the transmitter 416, MIMO transmit processor 441, transmit processor 415, and controller/processor 440 may be used to transmit the second control information.

As an example, at least the first three of the transmitter 416, MIMO transmit processor 441, transmit processor 415, and controller/processor 440 are used to transmit the L sets of reference signals.

For one embodiment, at least three of the receiver 416, MIMO detector 442, receive processor 412, and controller/processor 440 are configured to receive the second wireless signal.

Example 5

Embodiment 5 illustrates a wireless signal transmission flowchart, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintaining base station for user equipment U2. The steps identified by block F1, block F2, block F3, block F4, and block F5 are optional.

For theBase station N1Second control information is transmitted in step S11, first control information is transmitted in step S12, L reference signal groups are transmitted in step S13, the first wireless signal is received in step S14, third control information is transmitted in step S15, and the second wireless signal is received in step S16.

For theUser equipment U2Second control information is received in step S21, first control information is received in step S22, L sets of reference signals are received in step S23, energy detection is performed on the first sub-band in step S24, a first wireless signal is transmitted in step S25, third control information is monitored for a first time window in step S26, and a second wireless signal is transmitted in step S27.

In embodiment 5, the first control information is used by U2 to determine a first set of spatial parameters, the first set of spatial parameters including spatial parameters associated with uplink wireless signals on a first sub-band by U2; the first wireless signal is used by N1 to determine a target set of spatial parameters; the target set of spatial parameters includes at least one spatial parameter not belonging to the first set of spatial parameters, and the target set of spatial parameters is used to update spatial parameters associated with the uplink wireless signal on the first subband by U2.

As one embodiment, the step in block F4 exists, the third control information is used to determine spatial parameters associated with the updated U2 uplink wireless signal on the first sub-band.

As one embodiment, the step in block F3 exists, the U2 performs energy detection on the first sub-band to determine a first set of spatial parameters, the first set of spatial parameters being associated with the target set of spatial parameters.

As an embodiment, the step in block F1 exists, the second control information is used by U2 to determine a first set of time resources; u2 performs energy detection on the first subband on time resources within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether U2 transmits a wireless signal using frequency domain resources within the first subband on time resources immediately following the first time unit.

As one embodiment, the transmission of the first wireless signal is triggered by at least one of: when all spatial parameters in the first set of spatial parameters are adopted, the measurement result of the energy detection is not less than a first threshold value; when partial spatial parameters of the first set of spatial parameters are employed, none of the energy detection measurements is less than a first threshold; the measurement of the energy detection is less than a second threshold when a target spatial parameter of the set of target spatial parameters is employed.

As an embodiment, the step in block F2 exists, where a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, and L being a positive integer.

As an embodiment, the step in block F5 exists, and the spatial parameters associated with the uplink wireless signals of the updated U2 on the first sub-band are used for transmitting or receiving the second wireless signals.

Example 6

Embodiment 6 illustrates a first set of spatial parameters and a target set of spatial parameters, as shown in fig. 6.

In embodiment 6, the spatial parameters of the first set of spatial parameters in this application are used to generate a first set of beams, the first set of beams consisting of a plurality of beams, and the spatial parameters of the set of target spatial parameters in this application are used to generate a target beam, the target beam not belonging to a beam of the first set of beams. The target set of spatial parameters comprises at least one spatial parameter not belonging to the first set of spatial parameters.

As one embodiment, the target beam and a beam of the first set of beams are spatially independent.

As an embodiment, the beams of the first set of beams and the target beam are both receive beams.

As an embodiment, the beams of the first set of beams and the target beam are both transmit beams.

As one embodiment, the spatial parameter is applied to the radio frequency circuit.

As an embodiment, the spatial parameter comprises a parameter of a switching control of an antenna element.

As an embodiment, the spatial parameter comprises a control parameter of a phase shifter

Example 7

Embodiment 7 illustrates a first set of spatial parameters and a target set of spatial parameters, as shown in fig. 7.

In embodiment 7, the spatial parameters in the first set of spatial parameters in this application are used to generate the first beam, and the spatial parameters in the target set of spatial parameters in this application are used to generate a target beam, whose angular coverage is within the angular coverage of the first beam.

As one embodiment, the first beam is used for energy detection associated with the target beam.

As one embodiment, the first beam is a receive beam and the target beam is a transmit beam.

As one embodiment, the first beam is a receive beam used for energy detection.

Example 8

Example 8 illustrates a second spatial parameter set, a third spatial parameter set, a first spatial parameter set, and a target spatial parameter set, as shown in fig. 8.

In embodiment 8, the spatial parameters in the first set of spatial parameters in this application are used to generate beams in the first set of beams, the spatial parameters in the second set of spatial parameters in this application are used to generate second beams, the parameters in the third set of spatial parameters in this application are used to generate third beams, the spatial parameters in the first set of spatial parameters in this application are used to generate first beams, and the spatial parameters in the target set of spatial parameters in this application are used to generate target beams. The third beam is one of the first set of beams. The angular coverage of the third beam is within the angular coverage of the second beam. The second beam is used for energy detection associated with employment of the third beam. The third beam is used for transmission of an uplink wireless signal after channel access using the second beam. The first set of beams does not include the target beam. The angular coverage of the target beam in this application is within the angular coverage of the first beam.

As an embodiment, the beams in the first set of beams are transmission beams of uplink wireless signals.

As one embodiment, the second beam is a receive beam.

As an embodiment, the second beam is a receive beam for energy detection.

As an embodiment, the third beam is a transmission beam of an uplink wireless signal.

As an embodiment, the target beam is a transmission beam of an uplink wireless signal.

As one embodiment, the first beam is a receive beam.

As one embodiment, the first beam is a receive beam for energy detection.

Example 9

Example 9 illustrates K measurements, as shown in fig. 9.

In embodiment 9, energy detection #1 to energy detection # K correspond to the K measurements in the present application, respectively, and the beams #1 to # K are used as reception beams to perform energy detection #1 to # K, respectively. The first set of spatial parameters in this application is used to generate beam # q of beam #1 to beam # K. The measurement result of the energy detection # q is better than the measurement results of the other energy detections.

As an example, the average received power of energy detection # q is lower than the measurements of the other energy detections.

As an example, the channel quality obtained by energy detection # q is better than the channel quality obtained by other energy detections.

As an embodiment, the number of idle slots on the time resource occupied by the energy detection # q is larger than the number of idle slots on the time resource occupied by any other energy detection.

As an embodiment, the number of busy slots on the time resource occupied by the energy detection # q is smaller than the number of busy slots on the time resource occupied by any other energy detection.

Example 10

Embodiment 10 illustrates a first set of time resources, as shown in fig. 10. In fig. 10, the squares filled with diagonal lines are time resources for performing channel access, the squares filled with gray lines are time resources occupied by uplink transmission, and the squares filled with diagonal lines are time resources in the first time resource set.

In embodiment 10, a UE performs a first type of energy detection on a time resource in a first set of time resources for measuring channel quality, where the first type of energy detection is not used for channel access, that is, the first type of energy detection is independent of whether the UE transmits a radio signal immediately following the time resource in the first set of time resources. A second type of energy detection is used for channel access, the second type of energy detection being used to decide whether to transmit a wireless signal on a time resource occupied immediately following the second type of energy detection.

As an embodiment, the time resources in the first set of time resources are base station configured.

As an embodiment, the second type of energy detection is used to determine that the UE may perform uplink wireless signal transmission within a first time period, where time resources in the first set of time resources exist.

As an embodiment, the second type of energy detection is used to determine that the UE is unable to perform uplink wireless signal transmission within a second time period, where time resources of the first set of time resources exist.

Example 11

Embodiment 11 illustrates that the transmission of the first wireless signal is triggered, as shown in fig. 11.

In embodiment 11, the spatial parameters in the first set of spatial parameters in the present application are used to generate Q beams, i.e., beam #1 to beam # Q, which are used for energy detection #1 to energy detection # Q, respectively. The spatial parameters in the set of target spatial parameters in the present application are used to generate the target beam, which is used for target energy detection. The transmission of the first wireless signal in this application is triggered by the energy detection #1 to # Q and target energy detection. The measurement results of N energy detections in energy detections #1 to # Q are not less than the first threshold. The measurement result of the target energy detection is smaller than a second threshold, and N is a positive integer.

As one embodiment, the N is less than the Q.

As one embodiment, the N is equal to the Q.

As one embodiment, the measurement result is an average received power.

As one embodiment, the measurement is the number of busy slots.

Example 12

Example 12 illustrates L reference signal groups as shown in fig. 12.

In embodiment 12, the beam #1 to the beam # L are used to transmit or receive the L reference signal groups in the present application, respectively, and the fourth spatial parameter group in the present application is used to generate the beam # L therein, which is associated with the beam generated by the target spatial parameter group.

As an embodiment, the channel measurement results based on the first set of reference signals are better than the channel measurement results based on the other L-1 sets of reference signals.

For one embodiment, the first set of reference signals may correspond to a channel quality that is better than the channel quality corresponding based on the other L-1 sets of reference signals.

As an embodiment, the target spatial parameter set in the present application is used to generate a target transmission beam for transmitting the third uplink wireless signal.

As an embodiment, the target spatial parameter set in the present application is used to generate a target receiving beam for receiving the fourth uplink wireless signal.

As an embodiment, the beam #1 to the beam # L are respectively used for transmitting the L reference signal groups in the present application, and the angular coverage of the beam # L is the same as the receiving beam of the third uplink wireless signal.

As an embodiment, the beam #1 to the beam # L are respectively used for transmitting the L reference signal groups in the present application, and the angular coverage of the beam # L is the same as that of the target receiving beam.

As an embodiment, the beam #1 to the beam # L are respectively used for receiving the L reference signal groups in the present application, and the angular coverage of the beam # L is the same as that of the target transmission beam.

As an embodiment, the beam #1 to the beam # L are respectively used for receiving the L reference signal groups in the present application, and the angular coverage of the beam # L is the same as the angular coverage of the transmission used for transmitting the fourth uplink wireless signal.

As an embodiment, the beam #1 to the beam # L are respectively used for transmitting the L reference signal groups in the present application, and the first spatial parameter group in the present application is used for generating a first beam, which is used for energy detection as a receiving beam, and the angular coverage of the receiving beam of the first reference signal group is the same as that of the first beam.

As an embodiment, the beam #1 to the beam # L are used for receiving the L reference signal groups, respectively, and the first spatial parameter group in this application is used for generating the first beam, which is used for energy detection as a receiving beam, and the beam # L is the first beam.

Example 13

Example 13 illustrates a first set of spatial parameters, a target set of spatial parameters, and a second wireless signal, as shown in fig. 13.

In embodiment 13, the first spatial parameter set in the present application is used to generate a first beam that performs channel access as a reception beam, the channel access is successful, and the second radio signal in the present application is transmitted on a time resource immediately following the channel access. The target spatial parameter set is used to generate a target beam, which is used to transmit the second wireless signal, which is an uplink wireless signal.

As one embodiment, the target beam is used to transmit the second wireless signal.

As one embodiment, the target beam is used to receive the second wireless signal.

Example 14

Embodiment 14 illustrates an antenna structure of a user equipment, as shown in fig. 14. As shown in fig. 14, the user equipment is equipped with M radio frequency chains, which are radio frequency chain #1, radio frequency chain #2, …, and radio frequency chain # M. The M radio frequency chains are connected to a baseband processor.

As an embodiment, any one of the M radio frequency chains supports a bandwidth not exceeding a bandwidth of a sub-band in which the first type communication node is configured.

As an embodiment, M1 radio frequency chains of the M radio frequency chains are superimposed through Antenna Virtualization (Virtualization) to generate an Antenna Port (Antenna Port), the M1 radio frequency chains are respectively connected to M1 Antenna groups, and each Antenna group of the M1 Antenna groups includes a positive integer number of antennas. One antenna group is connected to the baseband processor through one radio frequency chain, and different antenna groups correspond to different radio frequency chains. The mapping coefficients of the antennas included in any one of the M1 antenna groups to the antenna ports constitute an analog beamforming vector of the antenna group. The coefficients of the phase shifters and the antenna switch states correspond to the analog beamforming vectors. The corresponding analog beamforming vectors of the M1 antenna groups are arranged diagonally to form an analog beamforming matrix for the antenna ports. The mapping coefficients of the M1 antenna groups to the antenna ports constitute digital beamforming vectors for the antenna ports.

As an embodiment, the spatial transmission parameter set and the spatial reception parameter set are used for a state of a corresponding antenna switch and a coefficient of a phase shifter.

As an embodiment, the set of spatial transmit parameters and the set of spatial receive parameters are used for beamforming coefficients corresponding to a baseband.

As an example, antenna switches may be used to control the beam width, the greater the working antenna spacing, the wider the beam.

As an embodiment, the M1 rf chains belong to the same panel.

As one example, the M1 radio frequency chains are QCL (Quasi Co-Located).

As an embodiment, M2 radio frequency chains of the M radio frequency chains are superimposed through antenna Virtualization (Virtualization) to generate one transmit beam or one receive beam, the M2 radio frequency chains are respectively connected to M2 antenna groups, and each antenna group of the M2 antenna groups includes a positive integer number of antennas. One antenna group is connected to the baseband processor through one radio frequency chain, and different antenna groups correspond to different radio frequency chains. The mapping coefficients of the antennas included in any one of the M2 antenna groups to the receive beam form an analog beamforming vector for this receive beam. The corresponding analog beamforming vectors of the M2 antenna groups are arranged diagonally to form an analog beamforming matrix for the receive beams. The mapping coefficients of the M2 antenna groups to the receive beam constitute a digital beamforming vector for the receive beam.

As an embodiment, the M1 rf chains belong to the same panel.

As an example, the M2 radio frequency chains are QCL.

As an example, the directions of the analog beams formed by the M rf chains are shown as beam direction #1, beam direction #2, beam direction # M-1, and beam direction # M in fig. 11, respectively.

As an embodiment, the sum of the number of layers configured by the user equipment on each of the parallel subbands is less than or equal to M.

As an embodiment, the sum of the number of antenna ports configured by the user equipment on each of the parallel sub-bands is less than or equal to M.

As an embodiment, for each of the parallel sub-bands, the layer-to-antenna port mapping is related to both the number of layers and the number of antenna ports.

As an embodiment, for each of the parallel subbands, the layer-to-antenna port mapping is default (i.e., not explicitly configured).

As one embodiment, the layers are mapped one-to-one to the antenna ports.

As one embodiment, one layer is mapped onto multiple antenna ports.

Example 15

Embodiment 15 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 15. In fig. 15, the UE processing apparatus 1500 is mainly composed of a first receiver module 1501 and a second transmitter module 1502.

In embodiment 15, the first receiver module 1501 receives the first control information, and the second transmitter module 1502 transmits the first wireless signal.

In embodiment 15, the first control information is used to determine a first set of spatial parameters comprising spatial parameters associated with uplink wireless signals of the user equipment on a first sub-band; transmitting a first wireless signal, the first wireless signal being used to determine a target set of spatial parameters; the target spatial parameter set includes at least one spatial parameter not belonging to the first set of spatial parameters, and is used to update spatial parameters associated with uplink wireless signals of the user equipment on the first subband.

For one embodiment, the first receiver module 1501 monitors third control information in a first time window, and the third control information is used to determine updated spatial parameters associated with uplink wireless signals of the user equipment on the first sub-band.

For one embodiment, the first receiver module 1501 performs energy detection on the first subband to determine a first set of spatial parameters; wherein the first set of spatial parameters is associated with the target set of spatial parameters.

For one embodiment, the first receiver module 1501 receives second control information used to determine a first set of time resources; wherein the user equipment performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the user equipment transmits a radio signal using a frequency domain resource within the first subband on a time resource immediately following the first time unit.

For one embodiment, the first receiver module 1501 receives L sets of reference signals on the first subband; wherein a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, L being a positive integer.

As an embodiment, the second transmitter module 1502 transmits a second wireless signal, and the updated spatial parameter associated with the uplink wireless signal of the ue on the first sub-band is used for transmitting or receiving the second wireless signal.

For one embodiment, the first receiver module 1501 includes at least the first three of the receiver 456, the receive processor 452, the MIMO detector 472, and the controller/processor 490 of embodiment 4.

As a sub-embodiment, the second transmitter module 1502 includes at least the first three of the transmitter 456, the transmit processor 455, the MIMO transmit processor 471, and the controller/processor 490 of embodiment 4.

Example 16

Embodiment 16 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 16. In fig. 16, the base station apparatus processing device 1600 is mainly composed of a first transmitter module 1601 and a second receiver module 1602.

In the embodiment 16, the first transmitter module 1601 transmits first control information, and the second receiver module 1602 receives a first wireless signal.

In embodiment 16, the first control information is used to determine a first set of spatial parameters; the first wireless signal is used to determine a target set of spatial parameters; the first set of spatial parameters includes spatial parameters associated with uplink wireless signals on the first sub-band by the sender of the first wireless signal, the target set of spatial parameters includes at least one spatial parameter not belonging to the first set of spatial parameters, and the target set of spatial parameters is used to update spatial parameters associated with uplink wireless signals on the first sub-band by the sender of the first wireless signal.

As an embodiment, the first transmitter module 1601 is configured to transmit third control information within a first time window, where the third control information indicates a spatial parameter associated with an uplink wireless signal of the updated transmitter of the first wireless signal on the first sub-band.

As one embodiment, a sender of the first wireless signal performs energy detection on the first sub-band to determine a first set of spatial parameters; wherein the first set of spatial parameters is associated with the target set of spatial parameters.

As an embodiment, the first transmitter module 1601 transmits second control information, which is used to determine a first set of time resources; wherein a sender of the first wireless signal performs energy detection on the first subband on a time resource within the first set of time resources to determine the first set of spatial parameters, a first time unit being any one time unit within the first set of time resources, the energy detection performed on the first subband on the first time unit being independent of whether the sender of the first wireless signal transmits a wireless signal using frequency domain resources within the first subband on a time resource immediately following the first time unit.

For one embodiment, the first transmitter module 1601 is configured to transmit L sets of reference signals on the first subband; wherein a fourth spatial parameter set is a spatial parameter set used for transmitting or receiving a first reference signal group, the first reference signal group being one of the L reference signal groups, the fourth spatial parameter set being associated with the target spatial parameter set, L being a positive integer.

For an embodiment, the second receiver module 1602 receives a second wireless signal, and the updated spatial parameter associated with the uplink wireless signal of the sender of the first wireless signal on the first sub-band is used for sending or receiving the second wireless signal.

As an embodiment, the first transmitter module 1601 includes at least two of the transmitter 416, the transmit processor 415, the MIMO transmit processor 471, and the controller/processor 440 of embodiment 4.

For one embodiment, the second receiver module 1602 includes at least two of the receiver 416, the receive processor 412, the MIMO detector 442, and the controller/processor 440 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. The base station 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, a gNB (NR node B), a TRP (Transmitter Receiver Point), and other wireless communication devices.

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

Claims

1. A method in a user equipment used for wireless communication, comprising:

monitoring third control information within a first time window, the third control information being used to determine updated spatial parameters associated with uplink wireless signals of the user equipment on the first sub-band;

wherein, RRC (Radio Resource Control) signaling is used for transmitting the first Control Information, and the first Control Information is an IE (Information Element); the target spatial parameter set comprises at least one spatial parameter not belonging to the first set of spatial parameters, the target spatial parameter set being used for updating spatial parameters associated with uplink radio signals of the user equipment on the first subband; the spatial parameter associated with the target spatial parameter set is used to monitor the third Control Information, where the third Control Information is DCI (Downlink Control Information); the first time window is after transmission of the first wireless signal; "used to determine" refers to an explicit indication, or "used to determine" refers to an implicit indication; the spatial parameters associated with the uplink wireless signals of the user equipment on the first sub-band are used for transmitting the uplink wireless signals of the user equipment on the first sub-band.

2. The method of claim 1, wherein the first control information is used to determine a fifth set of reference signals transmitted prior to the first control information; the first set of spatial parameters includes a set of spatial parameters used for transmitting the fifth set of Reference signals, the set of spatial parameters used for transmitting the fifth set of Reference signals being used for transmitting at least one uplink wireless signal of the user equipment on the first sub-band, the Reference signals in the fifth set of Reference signals being srs (sounding Reference signal); or, the first set of spatial parameters includes spatial parameter sets used for receiving the fifth Reference Signal group, the spatial parameter sets used for receiving the fifth Reference Signal group are used for transmitting at least one uplink wireless Signal of the user equipment on the first sub-band, a Reference Signal in the fifth Reference Signal group is an SS (Synchronization Signal) or a Reference Signal in the fifth Reference Signal group is a CSI-RS (Channel State Information Reference Signal); after the target set of spatial parameters is used to update spatial parameters associated with uplink wireless signals of the user equipment on the first sub-band, the spatial parameters associated with uplink wireless signals of the user equipment on the first sub-band include the target set of spatial parameters.

3. The method according to claim 1 or 2, characterized by comprising:

4. The method of claim 3, wherein the energy detection comprises a first measurement employing a second set of spatial parameters; wherein energy detection is performed on the first sub-band using the second set of spatial parameters on M1 slots and it is determined whether the M1 slots are in an idle state, respectively, the number of slots in an idle state among the M1 slots is used to trigger transmission of the first radio signal, M1 is a positive integer; a third set of spatial parameters is associated with the second set of spatial parameters, the third set of spatial parameters belonging to the first set of spatial parameters, the result of the first measurement being used to trigger the transmission of the first wireless signal, the target set of spatial parameters being used to replace the third set of spatial parameters.

5. The method according to claim 1 or 2, characterized by comprising:

receiving L sets of reference signals on the first subband;

6. The method according to claim 1 or 2, characterized by comprising:

and sending a second wireless signal, wherein the updated spatial parameter associated with the uplink wireless signal of the user equipment on the first sub-frequency band is used for sending the second wireless signal.

7. The method according to claim 1 or 2, wherein frequency domain resources within the first sub-band are used for transmitting the first radio signal, the user equipment monitoring the third control information on the first sub-band; alternatively, frequency domain resources within a second sub-band are used for transmitting the first radio signal, the second sub-band and the first sub-band being orthogonal in frequency domain, the user equipment monitoring the third control information on the first sub-band.

8. A method in a base station device used for wireless communication, characterized by comprising:

transmitting third control information in the first time window, wherein the third control information indicates the updated spatial parameters associated with the uplink wireless signals of the first wireless signal transmitter on the first sub-band;

wherein, RRC (Radio Resource Control) signaling is used for transmitting the first Control Information, and the first Control Information is an IE (Information Element); the first set of spatial parameters comprises spatial parameters associated with uplink wireless signals on the first sub-band by a sender of the first wireless signal, the target set of spatial parameters comprises at least one spatial parameter not belonging to the first set of spatial parameters, and the target set of spatial parameters is used for updating spatial parameters associated with uplink wireless signals on the first sub-band by the sender of the first wireless signal; the spatial parameter associated with the target spatial parameter group is used by the sender of the first wireless signal to monitor the third Control Information, where the third Control Information is a DCI (Downlink Control Information); the first time window is after transmission of the first wireless signal; "used to determine" refers to an explicit indication, or "used to determine" refers to an implicit indication; the spatial parameters associated with the uplink wireless signals on the first sub-band by the sender of the first wireless signals are used to transmit uplink wireless signals on the first sub-band by the sender of the first wireless signals.

9. A user equipment configured for wireless communication, comprising:

a first receiver module, configured to receive first control information, where the first control information is used to determine a first set of spatial parameters, where the first set of spatial parameters includes spatial parameters associated with uplink wireless signals of the user equipment on a first subband; monitoring third control information within a first time window, the third control information being used to determine updated spatial parameters associated with uplink wireless signals of the user equipment on the first sub-band;

10. A base station apparatus used for wireless communication, characterized by comprising:

a first transmitter module that transmits first control information, the first control information being used to determine a first set of spatial parameters; transmitting third control information in the first time window, wherein the third control information indicates a spatial parameter associated with an uplink wireless signal of the updated transmitter of the first wireless signal on the first sub-band;