CN110120830B

CN110120830B - Method and device for wireless communication in base station and user equipment

Info

Publication number: CN110120830B
Application number: CN201810122089.7A
Authority: CN
Inventors: 陈晋辉; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2018-02-07
Filing date: 2018-02-07
Publication date: 2020-11-06
Anticipated expiration: 2038-02-07
Also published as: CN112073101A; CN112073101B; WO2019154259A1; CN110120830A

Abstract

The application discloses a method and a device for wireless communication in a base station and user equipment. A user equipment receiving a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration comprising at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value; judging whether a first wireless signal can be sent on a target time-frequency resource or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not greater than the target energy detection threshold value; and if the first wireless signal can be sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting first sending power and first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value.

Description

Method and device for wireless communication in base station and user equipment

Technical Field

The present application relates to transmission schemes for wireless signals in wireless communication systems, and more particularly, to methods and apparatus for multi-antenna transmission and 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. A transmitter of the LTE system employs a quasi-omni antenna to perform LBT.

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, multiple antennas form a beam pointing to a specific spatial direction through Beamforming (Beamforming) to improve communication quality, and when considering coverage characteristics caused by Beamforming, conventional LAA techniques need to be reconsidered, such as LBT scheme.

Disclosure of Invention

The inventor finds that, in a 5G system, beamforming is used on a large scale, and how to improve the transmission efficiency of wireless signals on an unlicensed spectrum through beamforming is a key problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE (User Equipment) of the present application may be applied to the base station, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

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

receiving a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value;

performing a first type of energy detection with a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold;

judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a first space parameter group or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group;

if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting a first space parameter group, a first sending power and a first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value;

and if the first wireless signal cannot be sent on the target time frequency resource, giving up sending the first wireless signal on the target time frequency resource.

As an embodiment, the method is used for uplink channel access on an unlicensed spectrum.

As an embodiment, it is common knowledge that the maximum Equivalent Isotropic Radiated Power (EIRP) is determined by default, and the innovation point of the present application is that the maximum equivalent isotropic Radiated Power, i.e. the first Power value, is configurable.

As an embodiment, it is common knowledge that an energy detection threshold for uplink channel access is not used to determine the maximum equivalent omni-directional radiation power, and an innovative point of the present application is that an energy detection threshold for uplink channel access may be used to determine the maximum equivalent omni-directional radiation power.

As an embodiment, it is common knowledge that the maximum equivalent omni-directional radiation power is not used to determine the energy detection threshold for uplink channel access, and the innovation point of the present application is that the maximum equivalent omni-directional radiation power can be used to determine the energy detection threshold for uplink channel access.

As an embodiment, it is common knowledge that the energy detection threshold for uplink channel access is independent of the spatial coverage of LBT, and the innovation of the present application is that the energy detection threshold for uplink channel access is related to the spatial coverage of signal reception for LBT.

As an embodiment, it is common knowledge that the maximum equivalent omni-directional radiation power for transmitting the uplink signal is independent of the spatial coverage of the LBT, and the innovation point of the present application is that the maximum equivalent omni-directional radiation power for transmitting the uplink signal is related to the spatial coverage for LBT signal reception.

As an embodiment, one benefit of the above method is that the maximum energy detection threshold, the maximum equivalent omni-directional radiation power, and the spatial coverage of LBT are determined according to the base station configuration, thereby improving the transmission efficiency of directional transmission.

As an embodiment, another benefit of the above method is that a maximum energy detection threshold for uplink channel access, a maximum equivalent omni-directional radiation power and a spatial coverage of LBT are associated, thereby saving signaling overhead and improving transmission efficiency of directional transmission.

As an example, a further benefit of the above method is that: the spatial coverage of LBT for uplink channel access is used to determine the transmit direction of the uplink wireless signal, thereby avoiding interference to other directions.

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

Receiving a second control signal indicating a first modulation coding scheme index;

wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

As an embodiment, the above method has a benefit of associating the maximum equivalent omnidirectional radiation power with the modulation coding table, and the larger the maximum equivalent omnidirectional radiation power is, the higher the coding rate or the more modulation constellation points are in the modulation coding table associated with the maximum equivalent omnidirectional radiation power is, thereby improving the transmission efficiency of the directional transmission.

According to an aspect of the application, the above method is characterized in that the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, the N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

According to an aspect of the present application, the method is characterized in that the M candidate power values correspond to M candidate energy detection thresholds one to one, a sum of any one of the M candidate power values and the corresponding candidate energy detection threshold is a first power value, and a unit of each of the M candidate power values and the M candidate energy detection thresholds is db-mw or db-mw.

As an example, one benefit of the above approach is that: the relationship between the maximum effective omni-directional radiation power and the maximum energy detection threshold is utilized to calculate one of the maximum effective omni-directional radiation power and the other maximum energy detection threshold, so that the signaling overhead is reduced.

According to an aspect of the application, the above method is characterized in that the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

As an example, one benefit of the above approach is that: and determining the LBT space coverage for the uplink channel access by adopting the maximum energy detection threshold configured by the base station and utilizing the relationship between the maximum energy detection threshold and the LBT space coverage, thereby reducing the signaling overhead.

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

transmitting a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value;

monitoring a first wireless signal on a target time-frequency resource;

wherein a receiver of the first control signal performs a first type of energy detection employing a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether the first wireless signal can be transmitted on the target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not larger than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

Transmitting a second control signal indicating a first modulation coding scheme index;

According to one aspect of the application, the above method is characterized in that the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

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

a first receiver module to receive a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value;

a second receiver module to perform a first type of energy detection using a target set of spatial parameters, the target set of spatial parameters being associated with the target energy detection threshold;

a first processor module, configured to determine whether a first wireless signal can be transmitted on a target time-frequency resource using a first spatial parameter set using a comparison result of the first type of energy detection and a first energy detection threshold, where the first energy detection threshold is not greater than the target energy detection threshold, and the first spatial parameter set is associated with the target spatial parameter set;

a third transmitter module, configured to transmit the first wireless signal on the target time-frequency resource by using the first spatial parameter set, a first transmission power and a first antenna gain if it is determined that the first wireless signal can be transmitted on the target time-frequency resource, where a sum of the first transmission power and the first antenna gain is not greater than the target power value;

As an embodiment, the above user equipment is characterized in that the first receiver module receives a second control signal indicating a first modulation and coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

As an embodiment, the above user equipment is characterized in that the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, the N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

As an embodiment, the ue is characterized in that the M candidate power values correspond to M candidate energy detection thresholds one to one, a sum of any one of the M candidate power values and the corresponding candidate energy detection threshold is a first power value, and units of the M candidate power values and the M candidate energy detection thresholds are decibel milliwatts or decibel watts.

As an embodiment, the user equipment as described above is characterized in that the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

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

a first transmitter module to transmit a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value;

a third receiver module that monitors the first wireless signal on a target time-frequency resource;

wherein a receiver of the first control signal performs a first type of energy detection employing a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether a first wireless signal can be transmitted on a target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting a first space parameter group, a first sending power and a first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

As an embodiment, the base station device is characterized in that the first transmitter module transmits a second control signal, and the second control signal indicates a first modulation and coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

As an embodiment, the above base station apparatus is characterized in that the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, the N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

As an embodiment, the base station apparatus is characterized in that the M candidate power values correspond to M candidate energy detection thresholds one to one, a sum of any one of the M candidate power values and the corresponding candidate energy detection threshold is a first power value, and a unit of each of the M candidate power values and the M candidate energy detection thresholds is decibel milliwatt or decibel watt.

As an embodiment, the base station device as described above is characterized in that the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

As an example, compared with the prior art, the present application has the following main technical advantages:

-improving the efficiency of unlicensed spectrum uplink transmission by associating an energy detection threshold with the maximum effective omni-directional radiated power and the spatial coverage of LBT.

-improving the efficiency of unlicensed spectrum uplink transmission by using directional LBT and beamforming gain by associating the maximum effective omni-directional radiated power with the modulation coding table.

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 diagram of a first control signal and a first wireless signal according to one embodiment of the present application;

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

figure 3 shows a schematic diagram of 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 flow diagram of wireless transmission according to one embodiment of the present application;

fig. 6 shows a schematic diagram of a target power value, a target energy detection threshold, a target spatial parameter set and a first spatial parameter set according to an embodiment of the present application;

fig. 7 shows a diagram of a target power value and a first modulation and coding scheme according to an embodiment of the application;

fig. 8 shows a schematic diagram of an antenna structure of a first type of communication node according to an embodiment of the application;

fig. 9 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 10 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 first control signal and a first wireless signal according to the present application, as shown in fig. 1. In fig. 1, each block represents a step. In embodiment 1, a user equipment in the present application receives a first control signal indicating a first energy detection configuration comprising at least one of a target power value and a target energy detection threshold value, the target energy detection threshold value being associated to the target power value; performing a first type of energy detection with a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a first space parameter group or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, giving up sending the first wireless signal on the target time frequency resource.

As an embodiment, the above method is used for channel access over unlicensed spectrum.

As an embodiment, a licensed spectrum is used for transmitting the first control signal.

As one embodiment, the first control signal is cell common.

As an embodiment, the first control signal is for the user equipment.

As one embodiment, the first control signal is physical layer control signaling.

As an embodiment, the first control signal is higher layer control signaling.

As an embodiment, the first Control signal is RRC (Radio Resource Control) signaling.

As an embodiment, the first control signal is a downlink control signal.

As an embodiment, the first control signal is a radio signal generated by DCI (Downlink control information).

As an embodiment, the first control signal is a PDCCH (Physical Downlink control channel).

As an embodiment, the first control signal is a radio signal generated by an Uplink grant (DCI).

As one embodiment, the first energy detection configuration includes the target power value, which is associated to the target energy detection threshold.

As an embodiment, the first energy detection configuration comprises the energy detection threshold, which is associated to the target power value.

As one embodiment, the first energy detection configuration includes the target power threshold and the energy detection threshold.

As an embodiment, the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1.

As an embodiment, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, the N being a positive integer greater than 1.

As an embodiment, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

For one embodiment, one of the sets of spatial parameters includes parameters of a phase shifter acting on the radio frequency link.

As an embodiment, one of the sets of spatial parameters is used to generate one transmit beam.

As an embodiment, one of the sets of spatial parameters is used to generate one receive beam.

As an embodiment, one of the sets of spatial parameters includes beamforming coefficients used to generate transmit beams.

As an embodiment, one of the sets of spatial parameters includes beamforming coefficients used to generate receive beams.

As an embodiment, one of the sets of spatial parameters comprises parameters used for transmit spatial filtering.

As an embodiment, one of said sets of spatial parameters comprises parameters used for receive spatial filtering.

As an example, one of the sets of spatial parameters is used to directionally transmit a wireless signal.

As an example, one of the sets of spatial parameters is used for directionally receiving a wireless signal.

As an embodiment, one of the sets of spatial parameters corresponds to one multi-antenna transmission scheme.

As an embodiment, one of the sets of spatial parameters corresponds to one multi-antenna reception scheme.

As an embodiment, one of said sets of spatial parameters comprises at least one of a number of antenna elements, a state of an antenna element switch, a spacing between antenna elements and a coefficient of a phase shifter.

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 a frequency band in which the target time frequency resource is located.

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 a frequency band in which the target time frequency resource is located.

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).

For one embodiment, the target set of spatial parameters is used to generate receive beams for receiving wireless signals for the first type of energy detection.

As an embodiment, the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

As an embodiment, the target energy detection threshold is used to determine a spatial coverage generated by the target set of spatial parameters.

As an embodiment, the target energy detection threshold is used to calculate the spatial coverage generated by the target set of spatial parameters.

As an embodiment, the beamwidth generated with the target set of spatial parameters is correlated to the target energy detection threshold.

As an embodiment, the beam direction generated with the target set of spatial parameters is associated to the target energy detection threshold.

As an embodiment, the spatial coverage generated with the target set of spatial parameters is associated to the target energy detection threshold.

As an embodiment, the target energy detection threshold is used to determine the target set of spatial parameters.

As an embodiment, the target energy detection threshold is used to determine a beamwidth of a receive beam generated with the target set of spatial parameters.

As an embodiment, the L candidate energy detection thresholds correspond to L candidate beam widths in a one-to-one manner, the target energy detection threshold is one of the L candidate energy detection thresholds, and the beam width generated by using the target spatial parameter set is the beam width corresponding to the target energy detection threshold in the L candidate beam widths.

As an embodiment, the higher the target energy detection threshold, the wider the beamwidth generated using the target set of spatial parameters.

As an embodiment, the first energy detection configuration comprises a beam width generated with the target set of spatial parameters.

As one embodiment, the target energy detection threshold and the first energy detection threshold are in units of milliwatts.

As one embodiment, the target energy detection threshold and the first energy detection threshold are in units of joules.

As one embodiment, the target energy detection threshold and the first energy detection threshold are in units of mdB.

As an embodiment, each time the first type energy detection uses the target spatial parameter set for receiving a wireless signal.

As one embodiment, the first energy detection threshold is equal to the target energy detection threshold.

For one embodiment, the first energy detection threshold is less than the target energy detection threshold.

For one embodiment, the user equipment autonomously determines the first energy detection threshold that is less than the target energy detection threshold.

As an embodiment, the detection powers obtained by performing the first type of energy detection for multiple times respectively using the target spatial parameter group are used to determine whether the first wireless signal can be transmitted on the target time-frequency resource.

As an embodiment, the first type energy detection is performed for L1 times by using the target spatial parameter set, and L1 detection powers are obtained respectively, where L1 is a positive integer not less than 1.

As an embodiment, all of the L1 detection powers are lower than the first energy detection threshold, and the user equipment transmits the first radio signal on the target time-frequency resource using the first spatial parameter group.

As an embodiment, at least one of the L1 detection powers is higher than the first energy detection threshold, and the user equipment abstains from transmitting the first radio signal on the target time-frequency resource.

As an embodiment, Q1 detection powers of the L1 detection powers are all lower than the first energy detection threshold, the user equipment transmits the first wireless signal on the target time-frequency resource using the first spatial parameter group, and Q1 is a positive integer.

As an embodiment, a number of the L1 detection powers that are lower than the first energy detection threshold is less than the Q1, the user equipment abstains from transmitting the first wireless signal on the target time-frequency resource.

As an example, both the L1 and the Q1 are 1.

As one embodiment, the L1 is greater than the Q1.

As one example, the L1 is equal to the Q1.

As an embodiment, there exists a time slot in which the detected power obtained by performing the first type energy detection using the target spatial parameter set is lower than the first energy detection threshold, and the time slot is referred to as a first type idle time slot.

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

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

As an example, the time period is a duration period not shorter than 4 microseconds.

As an embodiment, the first type of energy detection is performed on L2 consecutive slots, the L2 being a positive integer no less than 1.

As an embodiment, all of the L2 timeslots are the first type of idle timeslot, and the ue transmits the first radio signal on the target time-frequency resource using the first spatial parameter group.

As an embodiment, there is at least one idle time slot of the L2 time slots, which is not the first type, and the user equipment abandons the transmission of the first radio signal on the target time-frequency resource.

As an embodiment, Q2 slots of the L2 slots are the first type of free slots, the user equipment transmits the first radio signal on the target time-frequency resource using the first spatial parameter group, and Q2 is a positive integer.

As an embodiment, the number of the first class of idle slots of the L2 slots is less than the Q2, and the user equipment abstains from transmitting the first radio signal on the target time-frequency resource.

As an example, both the L2 and the Q2 are 1.

As one embodiment, the L2 is greater than the Q2.

As one example, the L2 is equal to the Q2.

As an embodiment, one delay period consists of Q1 consecutive slots, Q1 being a positive integer; there are K1 delay periods before the target time-frequency resource, the K1 being a positive integer.

As an example, the K1 is a random number.

As an embodiment, all the time slots within the K1 delay time periods are the first-class idle time slots, and the ue transmits the first radio signal on the target time-frequency resource using the first spatial parameter group.

As an embodiment, when there is at least one time slot within the K1 delay time periods that is not the first class of idle time slots, the ue abstains from transmitting the first radio signal on the target time-frequency resource.

As an embodiment, the first set of spatial parameters is used to generate a transmit beam for transmitting the first wireless signal.

For one embodiment, the first set of spatial parameters acts on a phase shifter on a radio frequency link used to transmit the first wireless signal.

For one embodiment, the first set of spatial parameters includes parameters of a phase shifter acting on the radio frequency link.

As an embodiment, the equivalent channel generated using the first spatial parameter set and the equivalent channel generated using the target spatial parameter set are QCL (Quasi Co-located, class Co-located) spatially.

As an example, the large-scale parameters of the equivalent channel generated using the first set of spatial parameters may be used to infer the large-scale parameters of the equivalent channel generated using the target set of spatial parameters.

In one embodiment, the large-scale parameter includes at least one of delay spread, doppler shift, average gain, average delay, spatial transmit parameter, and spatial receive parameter.

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

As an embodiment, the spatial coverage generated with the target set of spatial parameters covers the spatial coverage generated with the first set of spatial parameters.

As an embodiment, the beamwidth generated using the target set of spatial parameters is larger than the beamwidth generated using the first set of spatial parameters.

As an embodiment, the beams generated with the target set of spatial parameters are used to cover the beams generated with the first set of spatial parameters.

As an embodiment, the beam direction generated with the target set of spatial parameters is associated with the beam direction generated with the first set of spatial parameters.

As an embodiment, the first spatial parameter set and the target spatial parameter set respectively include a first vector and a target vector, and a correlation of the first vector and the target vector is 1.

As an embodiment, the first spatial parameter set and the target spatial parameter set include a first vector and a target vector, respectively, and a correlation of the first vector and the target vector is less than 1.

As one example, the first transmit power is in units of decibel-milliwatts (mdB).

As one embodiment, the unit of the first transmit power is decibel watts (dBw).

As an embodiment, the first transmission power is an Effective Radiated Power (ERP).

As one embodiment, the unit of the first antenna gain is decibels (dB).

As an embodiment, the first antenna gain is a gain of an antenna used to transmit the first wireless signal with respect to an omni-directional radiator (omni).

As an embodiment, a sum of the first transmit Power and the first antenna gain is an Equivalent Isotropic Radiated Power (EIRP) used to transmit the first wireless signal.

As an embodiment, the target power value is a maximum equivalent omnidirectional radiated power used to transmit the first wireless signal.

As an embodiment, the user equipment receives a second control signal indicating a first modulation and coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

As an embodiment, the second control signal is cell common.

As an embodiment, the second control signal is for the user equipment.

As one embodiment, the second control signal is physical layer control signaling.

As an embodiment, the second control signal is a downlink control signal.

As an embodiment, the second control signal is a radio signal generated by DCI (Downlink control information).

As an embodiment, the second control signal is a PDCCH (Physical Downlink control channel).

As an embodiment, the second control signal is a radio signal generated by an Uplink grant (DCI).

As an embodiment, the first modulation coding scheme index is used to indicate the first modulation coding scheme from a first modulation coding table.

As an embodiment, the target power value is used to uniquely determine the first modulation coding table from a plurality of candidate modulation coding tables.

As an embodiment, the M candidate power values correspond to M modulation coding tables one to one, and the first modulation coding table is a modulation coding table corresponding to the target power value in the M candidate modulation coding tables.

As an embodiment, the target power value is used to modify a first reference modulation coding table to the first modulation coding table.

As an embodiment, the target power value is used to select a plurality of candidate modulation coding schemes from a second reference modulation coding table to generate the first modulation coding table.

As an embodiment, the first modulation coding table is a subset of the second reference modulation coding table.

As an embodiment, the second power value and the third power value are both power values of the M candidate power values, and the second modulation coding table and the third modulation coding table are modulation coding tables corresponding to the second power value and the third power value, respectively, and the second power value is greater than the third power value; the coding rate of the first modulation coding scheme index corresponding to the second modulation coding table is higher than the coding rate of the first modulation coding scheme index corresponding to the third modulation coding table, or; the modulation constellation order corresponding to the first modulation coding scheme index in the second modulation coding table is higher than the modulation constellation order corresponding to the first modulation coding scheme index in the third modulation coding table.

As an embodiment, the M candidate power values correspond to M candidate energy detection thresholds one to one, a sum of any one of the M candidate power values plus the corresponding candidate energy detection threshold is a first power value, and units of the M candidate power values and the M candidate energy detection thresholds are decibel-milliwatt or decibel-milliwatt.

As an embodiment, the target energy detection threshold and the first power value are used to calculate the target power value.

As an embodiment, the target power value and the first power value are used to calculate the target energy detection threshold.

Example 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 NR5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR5G 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, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land 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 an MME/AMF/UPF211, other MMEs/AMF/UPF 214, an S-GW (Service Gateway) 212, and a 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 operator-corresponding internet protocol services, and may specifically include the internet, an intranet, IMS (IP multimedia Subsystem), and PS streaming service (PSs).

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

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

As an embodiment, the UE201 supports multi-antenna transmission.

As an embodiment, the gNB203 supports multiple antenna transmission.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 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 example, the first control signal in this application is generated in the PHY 301.

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

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

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

As an embodiment, the second control signal in this application is generated in the PHY 301.

As an embodiment, the second control signal in this application is generated in the RRC sublayer 306.

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 associated with the base station device (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 transmit beamforming vectors to transmitter 416;

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 associated with 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 to output to the MIMO detector 472, and the MIMO detector 472 outputs analog receive beamforming vectors 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.

In uplink transmission, the processing associated with the user equipment (UE450) may include:

a data source 467 provides upper layer packets to the controller/processor 490, the controller/processor 490 providing packet header compression, encryption, 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 the control plane; the upper layer packet may include data or control information such as UL-SCH (uplink shared Channel);

controller/processor 490 passes control information for uplink transmission, resulting from processing of downlink reception by receive processor 452, to transmit processor 455;

a transmit processor 455 receives the output bit stream of the controller/processor 490, and performs 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 PUCCH, SRS (Sounding Reference Signal)) generation, etc.;

a MIMO transmit processor 471 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 the transmitter 456;

the MIMO transmit processor 471 outputs the analog transmit beamforming vectors to the transmitter 457;

a transmitter 456 for converting baseband signals provided by MIMO transmit processor 471 into radio frequency signals and transmitting them via antenna 460; each transmitter 456 samples a respective input symbol stream to produce a respective sampled signal stream. Each transmitter 456 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain an uplink signal. Analog transmit beamforming is processed in transmitter 456.

In uplink transmissions, processing associated with a base station device (410) may include:

receiver 416 is used to convert the radio frequency signals received through antenna 420 into baseband signals for MIMO detector 442; analog receive beamforming is processed in receiver 416;

a MIMO detector 442 for MIMO detecting signals received from receiver 416, and providing MIMO detected symbols to receive processor 442;

MIMO detector 442 outputs analog receive beamforming vectors to receiver 416;

receive processor 412 performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, among others;

controller/processor 440 receives the bitstream output by receive processor 412, provides packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and control plane;

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

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 a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value; performing a first type of energy detection with a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a first space parameter group or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, giving up sending the first wireless signal on the target time frequency resource.

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 a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value; performing a first type of energy detection with a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a first space parameter group or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, giving up sending the first wireless signal on the target time frequency resource.

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 a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value; monitoring a first wireless signal on a target time-frequency resource; wherein a receiver of the first control signal performs a first type of energy detection employing a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether the first wireless signal can be transmitted on the target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not larger than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

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 a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value; monitoring a first wireless signal on a target time-frequency resource; wherein a receiver of the first control signal performs a first type of energy detection employing a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether the first wireless signal can be transmitted on the target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not larger than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

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 the first three of receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 are configured to receive a first control signal in this application.

For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to perform a first type of energy detection in the present application.

For one embodiment, the receiving processor 452 is configured to determine whether the first wireless signal in the present application can be transmitted on the target time-frequency resource.

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

For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive the second control signal in this application.

As an example, at least the first three of transmit processor 415, MIMO transmit processor 441, transmitter 416 and controller/processor 440 may be configured to transmit the first control signals in this application.

As an example, at least the first three of the receiver 416, the MIMO detector 442, the receive processor 412, and the controller/processor 440 may be configured to monitor the first wireless signal in the present application on a target time-frequency resource.

As an example, at least the first three of transmit processor 415, MIMO transmit processor 441, transmitter 416 and controller/processor 440 may be configured to transmit the second control signals in this application.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission, as shown in fig. 5. In fig. 5, a base station communicates with a user equipment. The steps identified in block F1 are optional and the steps identified in block F2 may not be performed.

For theBase station N1In step S11, a first control signal is transmitted, in step S12, a second control signal is transmitted, and in step S13, a first wireless signal is monitored on a target time-frequency resource.

For theUser equipment U2In step S21, the first control signal is received, in step S22, the second control signal is received, in step S23, the first type of energy detection is performed, in step S24, it is determined whether the first wireless signal can be transmitted on the target time-frequency resource, and in step S25, the first wireless signal is transmitted on the target time-frequency resource.

In embodiment 5, the first control signal indicates a first energy detection configuration comprising at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value; the target set of spatial parameters is associated to the target energy detection threshold; u2 determines whether a first wireless signal can be transmitted on a target time-frequency resource by using a first spatial parameter group according to a comparison result between a result of the first type of energy detection and a first energy detection threshold, wherein the first energy detection threshold is not greater than the target energy detection threshold, and the first spatial parameter group is associated with the target spatial parameter group; if it is determined that the first wireless signal can be transmitted on the target time-frequency resource, the step in block F2 is performed, and U2 transmits the first wireless signal on the target time-frequency resource with the first spatial parameter set, a first transmit power and a first antenna gain, the sum of the first transmit power plus the first antenna gain being not greater than the target power value; if it is determined that the first wireless signal cannot be transmitted on the target time-frequency resource, the step in block F2 is not performed, and U2 abandons the transmission of the first wireless signal on the target time-frequency resource.

For one embodiment, the step in block F1 is performed, the second control signal indicates a first modulation coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

As one embodiment, the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, the N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

As an embodiment, the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

Example 6

Embodiment 6 illustrates a target power value, a target energy detection threshold, a target spatial parameter set and a first spatial parameter set, as shown in fig. 6.

In embodiment 6, M candidate energy detection configurations, i.e., candidate energy configurations #1 to # M, correspond to M candidate reception space coverages, i.e., candidate reception space coverages #1 to # M, one to one, and the M candidate reception space coverages have different reception beam widths. And M is a positive integer greater than 1. Each candidate energy detection configuration comprises a candidate energy detection threshold and a candidate power value. The first energy detection configuration in this application is one of the M candidate energy detection configurations, and the target power value and the target energy detection threshold in this application are the candidate energy detection threshold and the candidate power value comprised by the first energy detection configuration. The target set of spatial parameters in this application is used to generate one of the M candidate receive spatial covers. The set of target spatial parameters is used to perform a first type of energy detection in the present application. The first spatial parameter set in the present application is used to generate M candidate transmission spatial covers, i.e., candidate transmission spatial covers #1 to # M. The M candidate transmit spatial covers are associated with the M candidate receive spatial covers, respectively. The directions of the M candidate transmit spatial covers are associated with the directions of the M candidate receive spatial covers. The first set of spatial parameters is used for transmitting a first wireless signal in the present application.

Example 7

Embodiment 7 illustrates a schematic diagram of a target power value and a first modulation and coding scheme, as shown in fig. 7.

In embodiment 7, the first modulation and coding scheme index in the present application is used in combination with M candidate power values, i.e., candidate power values #1- # M, to determine M candidate modulation and coding schemes, i.e., candidate modulation and coding schemes #1- # M, respectively, and the target power value in the present application is one of the M candidate power values. The first modulation coding scheme in this application is one of the M candidate modulation coding schemes that the first modulation coding scheme index determines in combination with the target power value among the M candidate modulation coding schemes.

As an embodiment, the M candidate power values are respectively used to determine M modulation coding tables, the target power value is used to determine a first modulation coding table, and the first modulation coding scheme is a modulation coding scheme corresponding to the first modulation coding scheme index in the first modulation coding table.

Example 8

Embodiment 8 illustrates an antenna structure of user equipment, as shown in fig. 8. As shown in fig. 8, the first type of communication node 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 parameter set in the present application includes at least one of a state of an antenna switch, a coefficient of a phase shifter, and an antenna pitch.

As an example, the set of spatial parameters in this application includes beamforming coefficients on the radio link.

As an example, the set of spatial parameters in this application includes beamforming coefficients on a baseband link.

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 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 9

Embodiment 9 illustrates a block diagram of a processing device in a user equipment, as shown in fig. 9. In fig. 9, the ue processing apparatus 900 is mainly composed of a first receiver module 901, a second receiver module 902, a first processor module 903 and a third transmitter module 904.

For one embodiment, the first receiver module 901 includes at least the first three of a receiver 456, a MIMO detector 472, a receive processor 452, and a controller/processor 490.

For one embodiment, second receiver module 902 includes a receiver 456, a MIMO detector 472, and a receive processor 452.

For one embodiment, the first handler module 903 includes a receive processor 452.

For one embodiment, the third transmitter module 904 includes at least the first three of a transmit processor 455, a MIMO transmit processor 471, a transmitter 456, and a controller/processor 490.

The first receiver module 901: receiving a first control signal, the first control signal indicating a first energy detection configuration, the first energy detection configuration including at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value;

second receiver module 902: performing a first type of energy detection with a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold;

first handler module 903: judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a first space parameter group or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group;

third transmitter module 904: if it is determined that the first wireless signal can be transmitted on the target time-frequency resource, the third transmitter module 904 transmits the first wireless signal on the target time-frequency resource by using the first spatial parameter set, the first transmit power and the first antenna gain, and the sum of the first transmit power and the first antenna gain is not greater than the target power value.

For one embodiment, the first receiver module 901 receives a second control signal indicating a first modulation and coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 10. In fig. 10, the base station device processing apparatus 1000 is mainly composed of a first transmitter module 1001 and a third receiver module 1002.

For one embodiment, first transmitter module 1001 includes at least the first three of transmit processor 415, MIMO transmit processor 441, transmitter 416 and controller/processor 440.

For one embodiment, third receiver module 1002 includes at least the first three of receiver 416, MIMO detector 442, receive processor 412, and controller/processor 440.

First transmitter module 1001: transmitting a first control signal indicating a first energy detection configuration comprising at least one of a target power value and a target energy detection threshold, the target energy detection threshold being associated to the target power value.

Third receiver module 1002: a first wireless signal is monitored on a target time-frequency resource.

As an embodiment, a receiver of the first control signal performs a first type of energy detection using a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether a first wireless signal can be transmitted on a target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting a first space parameter group, a first sending power and a first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

As an embodiment, the first transmitter module 1001 transmits a second control signal indicating a first modulation coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the present application includes, but is not limited to, a mobile phone, a tablet, a notebook, a network card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, and other wireless communication devices. The base station or the network side device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, 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:

judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a first space parameter group or not by adopting a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; the user equipment autonomously determines the first energy detection threshold that is less than the target energy detection threshold;

if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value;

2. The method of claim 1, comprising:

wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal; the first modulation coding scheme index is used to indicate the first modulation coding scheme from a first modulation coding table, and the target power value is used to uniquely determine the first modulation coding table from a plurality of candidate modulation coding tables.

3. The method according to claim 1 or 2, wherein the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

4. The method of claim 3, wherein the M candidate power values correspond to M candidate energy detection thresholds one-to-one, a sum of any one of the M candidate power values plus its corresponding candidate energy detection threshold is the first power value, and a unit of the M candidate power values and the M candidate energy detection thresholds is one of decibel-milliwatt and decibel-watt.

5. The method according to claim 1 or 2, characterized in that the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

6. The method of claim 3, wherein the first energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

7. The method of claim 4, wherein the first energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

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

monitoring a first wireless signal on a target time-frequency resource;

wherein a receiver of the first control signal performs a first type of energy detection employing a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether the first wireless signal can be transmitted on the target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not larger than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; a receiver of the first control signal self-determines the first energy detection threshold that is less than the target energy detection threshold; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting the first space parameter group, the first sending power and the first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

9. The method of claim 8, comprising:

10. The method according to claim 8 or 9, wherein the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

11. The method of claim 10, wherein the M candidate power values correspond to M candidate energy detection thresholds one-to-one, a sum of any one of the M candidate power values plus its corresponding candidate energy detection threshold is a first power value, and a unit of the M candidate power values and the M candidate energy detection thresholds is db-mw or db-mw.

12. The method according to claim 8 or 9, wherein the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

13. The method of claim 10, wherein the target energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

14. The method of claim 11, wherein the target energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

15. A user device configured for wireless communication, comprising:

a first processor module, configured to determine whether a first wireless signal can be transmitted on a target time-frequency resource using a first spatial parameter set using a comparison result of the first type of energy detection and a first energy detection threshold, where the first energy detection threshold is not greater than the target energy detection threshold, and the first spatial parameter set is associated with the target spatial parameter set; the user equipment autonomously determines the first energy detection threshold that is less than the target energy detection threshold;

16. The user equipment of claim 15, wherein the first receiver module receives a second control signal indicating a first modulation coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal; the first modulation coding scheme index is used to indicate the first modulation coding scheme from a first modulation coding table, and the target power value is used to uniquely determine the first modulation coding table from a plurality of candidate modulation coding tables.

17. The user equipment according to claim 15 or 16, wherein the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer larger than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

18. The UE of claim 17, wherein the M candidate power values correspond to M candidate energy detection thresholds one-to-one, a sum of any one of the M candidate power values plus its corresponding candidate energy detection threshold is a first power value, and a unit of the M candidate power values and the M candidate energy detection thresholds is dB-mW or dB-mW.

19. The user equipment according to claim 15 or 16, wherein the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

20. The user equipment of claim 17, wherein the first energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

21. The user equipment of claim 18, wherein the first energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

22. A base station device used for wireless communication, comprising:

wherein a receiver of the first control signal performs a first type of energy detection employing a target set of spatial parameters, the target set of spatial parameters being associated to the target energy detection threshold; a receiver of the first control signal judges whether a first wireless signal can be transmitted on a target time-frequency resource by adopting a first space parameter group according to a comparison result of the first type of energy detection and a first energy detection threshold value, wherein the first energy detection threshold value is not more than the target energy detection threshold value, and the first space parameter group is related to the target space parameter group; a receiver of the first control signal self-determines the first energy detection threshold that is less than the target energy detection threshold; if the first wireless signal is judged to be capable of being sent on the target time frequency resource, sending the first wireless signal on the target time frequency resource by adopting a first space parameter group, a first sending power and a first antenna gain, wherein the sum of the first sending power and the first antenna gain is not more than the target power value; and if the first wireless signal cannot be sent on the target time frequency resource, the receiver of the first control signal abandons sending the first wireless signal on the target time frequency resource.

23. The base station device of claim 22, wherein the first transmitter module transmits a second control signal indicating a first modulation and coding scheme index; wherein the first energy detection configuration is used to determine a first modulation coding scheme indicated by the first modulation coding scheme index, the first modulation coding scheme being used to generate the first wireless signal; the first modulation coding scheme index is used to indicate the first modulation coding scheme from a first modulation coding table, and the target power value is used to uniquely determine the first modulation coding table from a plurality of candidate modulation coding tables.

24. The base station device of claim 22 or 23, wherein the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, L being a positive integer greater than 1; or, the first control signal indicates the target energy detection threshold from N candidate energy detection thresholds, N being a positive integer greater than 1; alternatively, the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

25. The base station apparatus of claim 24, wherein the M candidate power values correspond to M candidate energy detection thresholds one-to-one, a sum of any one of the M candidate power values and its corresponding candidate energy detection threshold is a first power value, and a unit of the M candidate power values and the M candidate energy detection thresholds is db-mw or db-mw.

26. The base station device according to claim 22 or 23, characterized in that the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

27. The base station apparatus of claim 24, wherein the target energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.

28. The base station apparatus of claim 25, wherein the target energy detection threshold is associated with a spatial coverage generated using the target set of spatial parameters.