CN112073101B

CN112073101B - Method and device for wireless communication in base station and user equipment

Info

Publication number: CN112073101B
Application number: CN202010960683.0A
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: 2024-05-28
Anticipated expiration: 2038-02-07
Also published as: WO2019154259A1; CN112073101A; CN110120830A; CN110120830B

Abstract

The application discloses a method and a device for wireless communication in a base station and user equipment. The user equipment 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, 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 result 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 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 larger than the target power value.

Description

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

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

filing date of the original application: 2018.02.07

Number of the original application: 201810122089.7

-The name of the invention of the original application: method and device for wireless communication in base station and user equipment

Technical Field

The present application relates to a transmission scheme of a wireless signal in a wireless communication system, and more particularly, to a method and apparatus for multi-antenna transmission and unlicensed spectrum.

Background

In the conventional 3GPP (3 rd GenerationPartner Project, third generation partnership project) LTE (Long-term Evolution) system, data transmission can only occur on the licensed spectrum, however, with the rapid increase of the traffic, especially in some urban areas, the licensed spectrum may be difficult to meet the traffic demand. Communications on unlicensed spectrum in Release 13 and Release 14 are introduced by the cellular system and used for transmission of downlink and uplink data. To ensure compatibility with access technologies on other unlicensed spectrum, LBT (Listen Before Talk, listen-before-talk) technology is adopted by LAA (LICENSED ASSISTED ACCESS, licensed spectrum assisted access) to avoid interference due to multiple transmitters simultaneously occupying the same frequency resources. The transmitter of the LTE system adopts a quasi-omni antenna to perform LBT.

Currently, a technical discussion of 5G NR (New Radio Access Technology ) is in progress, in which Massive (Massive) MIMO (Multi-Input Multi-Output) is one of research hotspots for next generation mobile communications. In massive MIMO, a plurality of antennas form beams directed to a specific spatial direction by Beamforming (Beamforming) to improve communication quality, and when considering coverage characteristics due to Beamforming, conventional LAA techniques need to be reconsidered, such as LBT schemes.

Disclosure of Invention

The inventor finds that in a 5G system, beamforming will be used in 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 collision, the embodiments of the present application and features in the embodiments may be applied to the base station in the UE (User Equipment) and vice versa. Further, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other without collision.

The application discloses a method used in user equipment of wireless communication, which is characterized by comprising the following steps:

Receiving 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;

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

Judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set;

If the first wireless signal can be sent on the target time-frequency resource, a first space parameter set, a first sending power and a first antenna gain are adopted on the target time-frequency resource to send the first wireless signal, and the sum of the first sending power and the first antenna gain is not larger than the target power value;

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

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

As an embodiment, it is common knowledge that the maximum equivalent omni-directional radiation power (EIRP, EFFECTIVE ISOTROPIC RADIATED POWER) is determined by default, whereas the innovation of the present application is that the maximum equivalent omni-directional radiation power, i.e. the first power value, is configurable.

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

As an example, it is common knowledge that the maximum equivalent omni-directional radiation power is not used for determining the energy detection threshold for uplink channel access, whereas the innovation of the present application is that the maximum equivalent omni-directional radiation power can be used for determining 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 the LBT, whereas the innovation of the present application is that the energy detection threshold for uplink channel access is related to the spatial coverage for signal reception of the LBT.

As an example, it is common knowledge that the maximum equivalent omni-directional radiation power for transmitting an uplink signal is independent of the spatial coverage of the LBT, whereas the innovation point of the present application is that the maximum equivalent omni-directional radiation power for transmitting an 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 the LBT are determined according to the base station configuration, thereby improving the transmission efficiency of the directional transmission.

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

As an embodiment, a further advantage of the above method is that: the spatial coverage of the LBT for uplink channel access is used to determine the transmission direction of the uplink radio signal, thereby avoiding interference to other directions.

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

Receiving a second control signal, the 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 the advantage that the maximum equivalent omni-directional radiation power is associated with the modulation coding table, and the larger the maximum equivalent omni-directional radiation power is, the higher the coding rate or the more modulation constellation points in the associated modulation coding table are, so that the transmission efficiency of the directional transmission is improved.

According to an aspect of the present 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; or the first control signal indicates the target power value from M candidate power values, where M is a positive integer greater than 1.

According to one aspect of the present application, the method is characterized in that the M candidate power values are in one-to-one correspondence with M candidate energy detection thresholds, 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 milliwatts or decibel watts.

As an embodiment, one benefit of the above method is that: the relation between the maximum effective omnidirectional radiation power and the maximum energy detection threshold is utilized to calculate one of the maximum effective omnidirectional radiation power and the maximum energy detection threshold to obtain the other, so that signaling overhead is reduced.

According to one 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 embodiment, one benefit of the above method is that: and determining the space coverage of the LBT for uplink channel access by using the relation between the maximum energy detection threshold and the space coverage of the LBT by adopting the maximum energy detection threshold configured by the base station, thereby reducing signaling overhead.

The application discloses a method used in a base station of wireless communication, which is characterized by comprising the following steps:

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;

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 with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; the receiver of the first control signal uses the comparison result of the first type of energy detection and a first energy detection threshold to determine whether the first wireless signal can be sent on the target time-frequency resource by using a first spatial parameter set, wherein 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; if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be transmitted on the target time-frequency resource, the receiver of the first control signal gives up to transmit the first wireless signal on the target time-frequency resource.

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

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

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

A first receiver module that receives a first control signal indicating a 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 with the target power value;

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

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

A third transmitter module that, if it is determined that the first wireless signal can be transmitted on the target time-frequency resource, transmits the first wireless signal on the target time-frequency resource using the first set of spatial parameters, a first transmit power, and a first antenna gain, where a sum of the first transmit power plus 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, the 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 user equipment is characterized in that the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, where L is 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; or the first control signal indicates the target power value from M candidate power values, where M is a positive integer greater than 1.

As an embodiment, the ue is characterized in that the M candidate power values are in one-to-one correspondence with M candidate energy detection thresholds, 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 milliwatts or decibel watts.

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

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

a first transmitter module that transmits a first control signal indicating a 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 with the target power value;

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

Wherein a receiver of the first control signal performs a first type of energy detection with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; the receiver of the first control signal uses the comparison result of the first type of energy detection and a first energy detection threshold to judge whether a first wireless signal can be sent on a target time-frequency resource by using a first space parameter set, wherein the first energy detection threshold is not greater than the target energy detection threshold, and the first space parameter set is associated with the target space parameter set; if the first wireless signal can be sent on the target time-frequency resource, a first space parameter set, a first sending power and a first antenna gain are adopted on the target time-frequency resource to send the first wireless signal, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be transmitted on the target time-frequency resource, the receiver of the first control signal gives up to transmit the first wireless signal on the target time-frequency resource.

As an embodiment, the above base station apparatus is characterized in that the first transmitter module transmits a second control signal, the 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 base station apparatus is characterized in that the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, the 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; or the first control signal indicates the target power value from M candidate power values, where M is a positive integer greater than 1.

As an embodiment, the base station apparatus is characterized in that the M candidate power values are in one-to-one correspondence with M candidate energy detection thresholds, 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 milliwatts or decibel watts.

As an embodiment, the above base station device 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 embodiment, compared with the prior art disclosed in the prior art, the present application has the following main technical advantages:

-improving the efficiency of unlicensed spectrum uplink transmission by correlating the energy detection threshold with the maximum effective omni-directional radiation power and the spatial coverage of the LBT;

-utilizing the directional LBT and the beamforming gain to increase the efficiency of unlicensed spectrum uplink transmission 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 detailed description of non-limiting embodiments, made with reference to the following drawings in which:

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

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

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

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

Fig. 5 shows a flow chart of wireless transmission according to an embodiment of the application;

FIG. 6 illustrates a schematic diagram of a target power value, a target energy detection threshold, a target set of spatial parameters, and a first set of spatial parameters, according to one embodiment of the application;

Fig. 7 shows a schematic diagram of a target power value and a first modulation 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 arrangement for use in a user equipment according to an embodiment of the application;

fig. 10 shows a block diagram of a processing apparatus for use in a base station according to one embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a 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 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 set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set; if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be sent on the target time-frequency resource, discarding 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 an embodiment, the first control signal is cell-common.

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

As an 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 Uplink grant (DCI).

As one embodiment, the first energy detection configuration comprises the target power value, the target power value being associated to the target energy detection threshold.

As one embodiment, the first energy detection configuration comprises the energy detection threshold being 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, the L being a positive integer greater than 1.

As one 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.

As an embodiment, one of the sets of spatial parameters comprises 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 comprises beamforming coefficients used for generating the transmit beam.

As an embodiment, one of the sets of spatial parameters comprises beamforming coefficients used for generating the receive beam.

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

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

As an embodiment, one of the sets of spatial parameters is used for directional transmission of wireless signals.

As an embodiment, one of the sets of spatial parameters is used for directional reception of wireless signals.

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

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

As an embodiment, one of the sets of spatial parameters includes 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 embodiment, once the energy detection means: the user equipment monitors received power over a period of time within a given duration.

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

As an embodiment, once the energy detection means: the user equipment perceives (Sense) for all wireless signals on a given frequency domain resource over a period of time 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 embodiment, once the energy detection means: the user equipment perceives (Sense) for all wireless signals on a given frequency domain resource over a period of time 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 one embodiment, the energy detection is energy detection in LBT (Listen Before Talk ).

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

As an embodiment, the energy detection is achieved by measuring RSSI (RECEIVED SIGNAL STRENGTH Indication of received signal strength).

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

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

As one 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 one embodiment, the beam width generated using the set of target spatial parameters is correlated to the target energy detection threshold.

As one embodiment, the beam direction generated using the set of target spatial parameters is correlated to the target energy detection threshold.

As one embodiment, the spatial coverage generated using the set of target spatial parameters is correlated to the target energy detection threshold.

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

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

As one embodiment, the L candidate energy detection thresholds are in one-to-one correspondence with L candidate beam widths, 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 a beam width corresponding to the target energy detection threshold from among 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 set of target spatial parameters.

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

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

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

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

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

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

As an embodiment, the user equipment autonomously determines the first energy detection threshold being smaller than the target energy detection threshold.

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

As an embodiment, the target space parameter group is adopted to execute the first type of energy detection for L1 times to obtain L1 detection powers respectively, wherein L1 is a positive integer not less than 1.

As an embodiment, the L1 detection powers are all lower than the first energy detection threshold, and the user equipment uses the first spatial parameter set to transmit the first wireless signal on the target time-frequency resource.

As an embodiment, at least one of the L1 detected powers is higher than the first energy detection threshold, and the user equipment gives up transmitting the first wireless 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 uses the first spatial parameter set to send the first wireless signal on the target time-frequency resource, and Q1 is a positive integer.

As an embodiment, the number of L1 detected powers below the first energy detection threshold is smaller than the Q1, and the user equipment gives up transmitting the first radio signal on the target time-frequency resource.

As one embodiment, both L1 and Q1 are 1.

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

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

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

As an embodiment, the time slot is 16 microseconds in length.

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

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

As an embodiment, the first type of energy detection is performed on consecutive L2 time slots, the L2 being a positive integer not less than 1.

As an embodiment, the L2 time slots are all idle time slots of the first type, and the user equipment uses the first spatial parameter set to send the first wireless signal on the target time-frequency resource.

As an embodiment, at least one idle slot other than the first type exists in the L2 slots, and the user equipment gives up transmitting the first wireless signal on the target time-frequency resource.

As one embodiment, Q2 time slots in the L2 time slots are idle time slots of the first type, the user equipment uses the first spatial parameter set to transmit the first wireless signal on the target time-frequency resource, and Q2 is a positive integer.

As an embodiment, the number of idle slots of the first type in the L2 slots is smaller than the Q2, and the user equipment gives up to transmit the first wireless signal on the target time-frequency resource.

As one embodiment, both said L2 and said Q2 are 1.

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

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

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

As an embodiment, the K1 is a random number.

As an embodiment, the time slots in the K1 delay periods are all idle time slots of the first type, and the user equipment uses the first space parameter set to send the first wireless signal on the target time-frequency resource.

As an embodiment, the at least one time slot existing in the K1 delay periods is not the idle time slot of the first type, and the user equipment gives up to transmit the first wireless signal on the target time-frequency resource.

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

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

As an embodiment, the first set of spatial parameters comprises parameters of a phase shifter acting on a radio frequency link.

As an embodiment, the equivalent channel generated using the first spatial parameter set is spatially QCL (Quasi Co-localized) with the equivalent channel generated using the target spatial parameter set.

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

As an embodiment, the large scale parameter includes at least one of delay spread, doppler shift, average gain, average delay, spatial transmission parameter, and spatial reception parameter.

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

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

As an embodiment, the beam width generated using the target spatial parameter set is larger than the beam width generated by the first spatial parameter set.

As an embodiment, the beam generated by the first set of spatial parameters is covered with the beam generated by the target 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 between the first vector and the target vector is 1.

As an embodiment, the first set of spatial parameters and the target set of spatial parameters respectively comprise a first vector and a target vector, the first vector and the target vector having a correlation of less than 1.

As one embodiment, the unit of the first transmission power is decibel milliwatts (mdB).

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

As an embodiment, the first transmit Power is an effective radiated Power (ERP, effective Radiated Power).

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

As an embodiment, the first antenna gain is the gain of the antenna used for transmitting the first wireless signal relative to an omnidirectional radiator (isotropic radiator).

As an embodiment, the sum of the first transmit power and the first antenna gain is an equivalent omni-directional radiated power (EIRP, EFFECTIVE ISOTROPIC RADIATED POWER) used to transmit the first wireless signal.

As an embodiment, the target power value is a maximum equivalent omni-directional radiation power used for transmitting the first wireless signal.

As an embodiment, the user equipment receives a second control signal, the 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 second control signal is cell-common.

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

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

As one embodiment, the M candidate power values are in one-to-one correspondence with M modulation coding tables, and the first modulation coding table is a modulation coding table corresponding to the target power value from the M candidate modulation coding tables.

As an embodiment, the target power value is used to modify a first reference modulation coding table into 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 in 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 corresponding coding rate of the first modulation coding scheme index in the second modulation coding table is higher than the corresponding coding rate of the first modulation coding scheme index in the third modulation coding table, or alternatively; the first modulation coding scheme index has a higher modulation constellation order in the second modulation coding table than its corresponding modulation constellation order in the third modulation coding table.

As one embodiment, the M candidate power values are in one-to-one correspondence with the M candidate energy detection thresholds, a sum of any one of the M candidate power values plus the corresponding candidate energy detection threshold is the 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 target energy detection threshold and the first power value are used to calculate the target power value.

As one 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 an NR 5g, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system network architecture 200. NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved PACKET SYSTEM ) 200 by some other suitable terminology. EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination for the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), TRP (transmit-receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband physical network device, a machine-type communication device, a land vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN210 through an S1/NG interface. EPC/5G-CN210 includes MME/AMF/UPF211, other MME/AMF/UPF214, S-GW (SERVICE GATEWAY, serving Gateway) 212, and P-GW (PACKET DATE Network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment 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, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and PS streaming services (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 multiple antenna transmission.

As an embodiment, the gNB203 supports multi-antenna transmission.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane and a control plane, fig. 3 shows the radio protocol architecture for a User Equipment (UE) and a base station device (gNB or eNB) with three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303 and a PDCP (PACKET DATA Convergence Protocol ) sublayer 304, which terminate at the 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., remote 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 data packets, retransmission of lost data packets, and reordering of data 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 the 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 there is no header compression function for the control plane. The control plane also includes an RRC (Radio Resource Control ) sub-layer 306 in layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the gNB and the UE.

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

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

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

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

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

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 the present application is generated in the PHY301.

As an embodiment, the second control signal in the present 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.

A controller/processor 440, a scheduler 443, a memory 430, a receive processor 412, a transmit processor 415, a mimo transmit processor 441, a mimo detector 442, a transmitter/receiver 416, and an antenna 420 may be included in the base station apparatus (410).

A 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 downlink transmission, the processing associated with the base station apparatus (410) may include:

upper layer packet arrival controller/processor 440, controller/processor 440 providing packet header compression, encryption, packet segmentation connection and reordering, and multiplexing de-multiplexing between logical and transport channels to implement L2 layer protocols for user and control planes; 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;

The controller/processor 440 informs the scheduler 443 of the transmission demand, the scheduler 443 is configured to schedule air interface resources corresponding to the transmission demand, and informs the controller/processor 440 of the scheduling result;

controller/processor 440 passes control information for downstream transmissions, which is processed by receive processor 412 for upstream reception, to transmit processor 415;

transmit processor 415 receives the output bit stream of 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 spatially processes the data symbols, control symbols, or reference signal symbols (e.g., multi-antenna precoding, digital beamforming) and outputs baseband signals to transmitter 416;

MIMO transmit processor 441 outputs the analog transmit beam shaping vectors to transmitter 416;

a transmitter 416 for converting the baseband signal provided by the MIMO transmission processor 441 into a radio frequency signal and transmitting it via an 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., digital-to-analog converts, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downstream signal; analog transmit beamforming is processed in transmitter 416.

In downlink transmission, the processing associated with the user equipment (UE 450) may include:

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

A MIMO detector 472 for MIMO detecting the signal received from the receiver 456 and providing the MIMO detected baseband signal to the receive processor 452;

The receive processor 452 extracts the analog receive beamforming related parameters output to the MIMO detector 472, the MIMO detector 472 outputting the analog receive beamforming vector to the receiver 456;

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

controller/processor 490 receives the bit stream output by receive processor 452, provides header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing de-multiplexing between logical and transport channels to implement L2 layer protocols 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 downstream reception, which is processed by transmit processor 455 for upstream transmissions, to receive processor 452.

In uplink transmission, the processing associated with the user equipment (UE 450) may include:

the data source 467 provides upper layer packets to the controller/processor 490, the controller/processor 490 providing header compression, encryption, packet segmentation connection and reordering, and multiplexing de-multiplexing between logical and transport channels to implement L2 layer protocols for the user plane and 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 transmissions, which is processed by receive processor 452 for downlink reception, to transmit processor 455;

The transmit processor 455 receives the output bit stream of the controller/processor 490, 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 PUCCH, SRS (Sounding REFERENCE SIGNAL, sounding reference signal)) generation, etc.;

MIMO transmit processor 471 may spatially process the data symbols, control symbols, or reference signal symbols (e.g., multi-antenna precoding, digital beamforming) and output baseband signals to transmitter 456;

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

Transmitter 456 is configured to convert the baseband signals provided by MIMO transmit processor 471 to radio frequency signals and transmit 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., digital-to-analog converts, amplifies, filters, upconverts, etc.) the respective sample stream to an upstream signal. Analog transmit beamforming is processed in transmitter 456.

In uplink transmission, the processing associated with the base station apparatus (410) may include:

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

MIMO detector 442 is configured to perform MIMO detection on the received signals from receiver 416 and provide MIMO-detected symbols to receive processor 442;

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

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

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

controller/processor 440 passes control information for the uplink transmission, which is obtained by processing the downlink transmission by transmit processor 415, to receive processor 412;

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 are configured to, with the at least one processor, cause the UE450 apparatus at least to: receiving 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; performing a first type of energy detection with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set; if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be sent on the target time-frequency resource, discarding 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, produce acts comprising: receiving 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; performing a first type of energy detection with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set; if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be sent on the target time-frequency resource, discarding sending the first wireless signal on the target time-frequency resource.

As an 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 means at least: 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; 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 with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; the receiver of the first control signal uses the comparison result of the first type of energy detection and a first energy detection threshold to determine whether the first wireless signal can be sent on the target time-frequency resource by using a first spatial parameter set, wherein 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; if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be transmitted on the target time-frequency resource, the receiver of the first control signal gives up to transmit 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, produce acts comprising: 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; 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 with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; the receiver of the first control signal uses the comparison result of the first type of energy detection and a first energy detection threshold to determine whether the first wireless signal can be sent on the target time-frequency resource by using a first spatial parameter set, wherein 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; if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be transmitted on the target time-frequency resource, the receiver of the first control signal gives up to transmit 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.

As one example, at least the first three of the receiver 456, the mimo detector 472, the receive processor 452, and the controller/processor 490 are configured to receive the first control signal in the present application.

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

As one example, the receive processor 452 is configured to determine whether the first wireless signal of the present application can be transmitted on the target time-frequency resource.

As one example, at least the first three of transmit processor 455, mimo transmit processor 471, transmitter 456 and controller/processor 490 are used to transmit the first wireless signal in the present application.

As an example, receiver 456, mimo detector 472 and receive processor 452 are used to receive the second control signal in the present application.

As one example, at least the first three of the transmit processor 415, mimo transmit processor 441, transmitter 416, and controller/processor 440 are used to transmit the first control signal in the present application.

As one example, at least the first three of receiver 416, mimo detector 442, receive processor 412, and controller/processor 440 are used to monitor the first wireless signal in the present application on the target time-frequency resource.

As one example, at least the first three of the transmit processor 415, mimo transmit processor 441, transmitter 416, and controller/processor 440 are used to transmit the second control signal in the present application.

Example 5

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

For the base station N1, a first control signal is transmitted in step S11, a second control signal is transmitted in step S12, and the first radio signal is monitored on the target time-frequency resource in step S13.

For the user equipment U2, a first control signal is received in step S21, a second control signal is received in step S22, a first type of energy detection is performed in step S23, it is determined in step S24 whether the first radio signal can be transmitted on the target time-frequency resource, and the first radio signal is transmitted on the target time-frequency resource in step S25.

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 with the target power value; the set of target spatial parameters is associated to the target energy detection threshold; u2 judges whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set; 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, U2 transmitting the first wireless signal on the target time-frequency resource using the first set of spatial parameters, a first transmit power and a first antenna gain, the sum of the first transmit power plus the first antenna gain being no 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, U2 relinquishes transmitting the first wireless signal on the target time-frequency resource.

As one embodiment, the step in block F1 is performed, the 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 one embodiment, the first control signal indicates the first energy detection configuration from L candidate energy detection configurations, the 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; or the first control signal indicates the target power value from M candidate power values, where M is a positive integer greater than 1.

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

Example 6

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

In embodiment 6, M candidate energy detection configurations, i.e., candidate energy configurations #1- #m, are in one-to-one correspondence with M candidate reception space covers, i.e., candidate reception space covers #1- #m, which are different in reception beam width. And M is a positive integer greater than 1. Each candidate energy detection configuration includes a candidate energy detection threshold and a candidate power value. The first energy detection configuration in the present application is one of the M candidate energy detection configurations, and the target power value and the target energy detection threshold in the present application are the candidate energy detection threshold and the candidate power value included in the first energy detection configuration. The set of target spatial parameters in the present application is used to generate one of the M candidate received spatial covers. The set of target spatial parameters is used to perform a first type of energy detection in the present application. The first set of spatial parameters in the present application is used to generate M candidate transmission spatial coverage, i.e. candidate transmission spatial coverage #1- #m. The M candidate transmit spatial overlays are associated with the M candidate receive spatial overlays, respectively. The directions of the M candidate transmission space coverage are associated with the directions of the M candidate reception space coverage. The first set of spatial parameters is used to transmit a first wireless signal in the present application.

Example 7

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

In embodiment 7, the first modulation 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 coding schemes, i.e., candidate modulation 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 the present application is one of the M candidate modulation coding schemes determined from the M candidate modulation coding schemes by the first modulation coding scheme index in combination with the target power value.

As an embodiment, the M candidate power values are used to determine M modulation coding tables, respectively, and 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 a 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, namely radio frequency chain #1, radio frequency chains #2, …, and radio frequency chain #m. The M radio frequency chains are connected to one baseband processor.

As an embodiment, the bandwidth supported by any one of the M radio frequency chains does not exceed the bandwidth of the sub-band configured by the first type communication node.

As an embodiment, M1 radio frequency chains of the M radio frequency chains are overlapped through Antenna virtualization (Virtualization) to generate an Antenna Port (Antenna Port), the M1 radio frequency chains are respectively connected with M1 Antenna groups, and each Antenna group of the M1 Antenna groups includes a positive integer and an Antenna. 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 form an analog beamforming vector for that antenna group. The coefficients of the phase shifter and the antenna switch state correspond to the analog beamforming vector. The corresponding analog beamforming vectors of the M1 antenna groups are diagonally arranged to form an analog beamforming matrix of the antenna port. The mapping coefficients of the M1 antenna groups to the antenna ports form digital beam forming vectors of the antenna ports.

As one embodiment, the set of spatial parameters in the present application includes at least one of the state of the antenna switch, the coefficient of the phase shifter, and the antenna spacing.

As an embodiment, the set of spatial parameters in the present application includes beamforming coefficients on the radio frequency link.

As an embodiment, the set of spatial parameters in the present application includes beamforming coefficients on the baseband link.

As one example, antenna switches may be used to control the beam width, with the larger the working antenna spacing, the wider the beam.

As an embodiment, the M1 radio frequency 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 overlapped through antenna virtualization (Virtualization) to generate a transmitting beam or a receiving beam, the M2 radio frequency chains are respectively connected with 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 diagonally arranged to form an analog beamforming matrix of the receive beam. The mapping coefficients of the M2 antenna groups to the receive beams constitute a digital beamforming vector of the receive beams.

As an embodiment, the M1 radio frequency 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 the M.

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

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

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

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

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

Example 9

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

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

As one embodiment, the second receiver module 902 includes a receiver 456, a mimo detector 472, and a receive processor 452.

The first processor module 903, as one embodiment, includes a receive processor 452.

As one example, third transmitter module 904 includes at least three of a transmit processor 455, a mimo transmit processor 471, a transmitter 456, and a controller/processor 490.

-A first receiver module 901: receiving 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;

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

-a first processor module 903: judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set;

-a 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 using the first set of spatial parameters, a first transmit power, and a first antenna gain, where a sum of the first transmit power plus the first antenna gain is not greater than the target power value.

As an embodiment, the first receiver module 901 receives a second control signal, the 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.

Example 10

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

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

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

-A first transmitter module 1001: a first control signal is transmitted, the first control signal indicating a 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 with the target power value.

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

As an embodiment, the receiver of the first control signal performs a first type of energy detection with a set of target spatial parameters, which are associated to the target energy detection threshold; the receiver of the first control signal uses the comparison result of the first type of energy detection and a first energy detection threshold to judge whether a first wireless signal can be sent on a target time-frequency resource by using a first space parameter set, wherein the first energy detection threshold is not greater than the target energy detection threshold, and the first space parameter set is associated with the target space parameter set; if the first wireless signal can be sent on the target time-frequency resource, a first space parameter set, a first sending power and a first antenna gain are adopted on the target time-frequency resource to send the first wireless signal, and the sum of the first sending power and the first antenna gain is not larger than the target power value; and if the first wireless signal cannot be transmitted on the target time-frequency resource, the receiver of the first control signal gives up to transmit 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.

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

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A user equipment for wireless communication, comprising:

A first processor module configured to determine, using a result of the first type of energy detection and a comparison result of a first energy detection threshold, whether a first wireless signal can be transmitted on a target time-frequency resource using a first set of spatial parameters, the first energy detection threshold being not greater than the target energy detection threshold, the first set of spatial parameters being associated with the target set of spatial parameters; the user equipment automatically determines the first energy detection threshold value smaller than the target energy detection threshold value;

If the first wireless signal can not be sent on the target time-frequency resource, discarding sending the first wireless signal on the target time-frequency resource;

The target space parameter set is adopted to execute the first type energy detection for L1 times to respectively obtain L1 detection powers, wherein L1 is a positive integer not smaller than 1; if Q1 detection powers in the L1 detection powers are all lower than the first energy detection threshold, the user equipment adopts the first spatial parameter set to transmit the first wireless signal on the target time-frequency resource, where Q1 is a positive integer; if the number of L1 detected powers below the first energy detection threshold is less than Q1, the user equipment refrains from transmitting the first wireless signal on the target time-frequency resource.

2. The user equipment of claim 1, wherein 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; 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 user equipment 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; or the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

4. A user equipment according to any of claims 1 to 3, wherein the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1; the M candidate power values are in one-to-one correspondence with the M candidate energy detection thresholds, the sum of any one of the M candidate power values plus the corresponding candidate energy detection threshold is a first power value, and the units of the M candidate power values and the M candidate energy detection thresholds are decibel-milliwatt or decibel-watt.

5. The user equipment according to any of claims 1 to 4, wherein the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

6. The user equipment according to any of claims 1 to 5, wherein L candidate energy detection thresholds are in one-to-one correspondence with L candidate beam widths, the target energy detection threshold is one of the L candidate energy detection thresholds, and the beam width generated using the target spatial parameter set is the beam width of the L candidate beam widths corresponding to the target energy detection threshold.

7. The user equipment according to any of claims 1 to 6, wherein the spatial coverage generated with the target spatial parameter set covers the spatial coverage generated with the first spatial parameter set; or the beam width generated by the target space parameter group is larger than the beam width generated by the first space parameter group; or covering the beam generated by the first space parameter set with the beam generated by the target space parameter set; or the beam direction generated by the target space parameter group is associated with the beam direction generated by the first space parameter group.

8. A base station apparatus for wireless communication, comprising:

Wherein a receiver of the first control signal performs a first type of energy detection with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; the receiver of the first control signal uses the comparison result of the first type of energy detection and a first energy detection threshold to judge whether a first wireless signal can be sent on a target time-frequency resource by using a first space parameter set, wherein the first energy detection threshold is not greater than the target energy detection threshold, and the first space parameter set is associated with the target space parameter set; 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 can be sent on the target time-frequency resource, a first space parameter set, a first sending power and a first antenna gain are adopted on the target time-frequency resource to send the first wireless signal, and the sum of the first sending power and the first antenna gain is not larger than the target power value; if the first wireless signal cannot be sent on the target time-frequency resource, the receiver of the first control signal gives up sending the first wireless signal on the target time-frequency resource; the receiver of the first control signal executes the first type of energy detection by adopting the target space parameter set for L1 times to respectively obtain L1 detection powers, wherein L1 is a positive integer not less than 1; if Q1 detected powers of the L1 detected powers are all lower than the first energy detection threshold, the receiver of the first control signal transmits the first wireless signal on the target time-frequency resource using the first spatial parameter set, the Q1 being a positive integer; if the number of L1 detected powers below the first energy detection threshold is less than Q1, the receiver of the first control signal relinquishes transmitting the first wireless signal on the target time-frequency resource.

9. The base station apparatus of claim 8, 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.

10. The base station device 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; or the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

11. The base station apparatus according to any one of claims 8 to 10, wherein the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1; the M candidate power values are in one-to-one correspondence with the M candidate energy detection thresholds, the sum of any one of the M candidate power values plus the corresponding candidate energy detection threshold is a first power value, and the units of the M candidate power values and the M candidate energy detection thresholds are decibel-milliwatt or decibel-watt.

12. The base station apparatus according to any of claims 8 to 11, wherein the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

13. The base station device according to any of claims 8 to 12, wherein the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

14. The base station apparatus according to any one of claims 8 to 13, wherein L candidate energy detection thresholds are in one-to-one correspondence with L candidate beam widths, the target energy detection threshold is one of the L candidate energy detection thresholds, and the beam width generated using the target spatial parameter set is a beam width corresponding to the target energy detection threshold among the L candidate beam widths.

15. The base station apparatus according to any one of claims 8 to 14, wherein the spatial coverage generated with the target spatial parameter set covers the spatial coverage generated with the first spatial parameter set; or the beam width generated by the target space parameter group is larger than the beam width generated by the first space parameter group; or covering the beam generated by the first space parameter set with the beam generated by the target space parameter set; or the beam direction generated by the target space parameter group is associated with the beam direction generated by the first space parameter group.

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

Judging whether a first wireless signal can be sent on a target time-frequency resource by adopting a comparison result of the first type of energy detection result 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 set is related to the target space parameter set; the user equipment automatically determines the first energy detection threshold value smaller than the target energy detection threshold value;

if the first wireless signal can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value;

17. The method according to claim 16, 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.

18. The method of claim 16 or 17, 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; or the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

19. The method according to any one of claims 16 to 18, wherein the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1; the M candidate power values are in one-to-one correspondence with the M candidate energy detection thresholds, the sum of any one of the M candidate power values plus the corresponding candidate energy detection threshold is a first power value, and the units of the M candidate power values and the M candidate energy detection thresholds are decibel-milliwatt or decibel-watt.

20. The method according to any one of claims 16 to 19, wherein the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

21. The method according to any one of claims 16 to 20, wherein L candidate energy detection thresholds are in one-to-one correspondence with L candidate beam widths, the target energy detection threshold being one of the L candidate energy detection thresholds, and the beam width generated using the target spatial parameter set being a beam width of the L candidate beam widths corresponding to the target energy detection threshold.

22. The method according to any one of claims 16 to 21, wherein the spatial coverage generated with the target spatial parameter set covers the spatial coverage generated with the first spatial parameter set; or the beam width generated by the target space parameter group is larger than the beam width generated by the first space parameter group; or covering the beam generated by the first space parameter set with the beam generated by the target space parameter set; or the beam direction generated by the target space parameter group is associated with the beam direction generated by the first space parameter group.

23. A method in a base station 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 with a set of target spatial parameters, the set of target spatial parameters being associated with the target energy detection threshold; the receiver of the first control signal determines, using a comparison of a result of the first type of energy detection with a first energy detection threshold, whether the first wireless signal can be transmitted on the target time-frequency resource using a first set of spatial parameters, the first energy detection threshold being no greater than the target energy detection threshold, the first set of spatial parameters being associated with the target set of spatial parameters; the 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 can be sent on the target time-frequency resource, the first wireless signal is sent on the target time-frequency resource by adopting the first space parameter set, first sending power and first antenna gain, and the sum of the first sending power and the first antenna gain is not larger than the target power value; if it is determined that the first wireless signal cannot be transmitted on the target time-frequency resource, the receiver of the first control signal gives up transmitting the first wireless signal on the target time-frequency resource; the receiver of the first control signal executes the first type of energy detection by adopting the target space parameter set for L1 times to respectively obtain L1 detection powers, wherein L1 is a positive integer not less than 1; if Q1 detected powers of the L1 detected powers are all lower than the first energy detection threshold, the receiver of the first control signal transmits the first wireless signal on the target time-frequency resource using the first spatial parameter set, the Q1 being a positive integer; if the number of L1 detected powers below the first energy detection threshold is less than Q1, the receiver of the first control signal relinquishes transmitting the first wireless signal on the target time-frequency resource.

24. The method according to claim 23, comprising:

25. The method of claim 23 or 24, 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; or the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1.

26. The method according to any one of claims 23 to 25, wherein the first control signal indicates the target power value from M candidate power values, M being a positive integer greater than 1; the M candidate power values are in one-to-one correspondence with the M candidate energy detection thresholds, the sum of any one of the M candidate power values plus the corresponding candidate energy detection threshold is a first power value, and the units of the M candidate power values and the M candidate energy detection thresholds are decibel-milliwatt or decibel-watt.

27. The method of any one of claims 23 to 26, wherein the target energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

28. The method of any one of claims 23 to 27, wherein the first energy detection threshold is associated to a spatial coverage generated with the target set of spatial parameters.

29. The method of any one of claims 23 to 28, wherein L candidate energy detection thresholds are in one-to-one correspondence with L candidate beam widths, the target energy detection threshold being one of the L candidate energy detection thresholds, and the beam width generated using the target spatial parameter set being a beam width of the L candidate beam widths corresponding to the target energy detection threshold.

30. The method according to any one of claims 23 to 29, wherein the spatial coverage generated with the target spatial parameter set covers the spatial coverage generated with the first spatial parameter set; or the beam width generated by the target space parameter group is larger than the beam width generated by the first space parameter group; or covering the beam generated by the first space parameter set with the beam generated by the target space parameter set; or the beam direction generated by the target space parameter group is associated with the beam direction generated by the first space parameter group.