RU2783388C2 - Beam adjustment method, device, system, processing device, machine-readable information carrier and computer program product - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: invention relates to beam adjustment means for reception of a downlink signal. Indication information related to interference, transmitted by a network device, is received, wherein indication information related to interference indicates the use of a reception beam for reception of a downlink signal, which does not cause interference for a terminal device, and a downlink signal, which causes interference for the terminal device. One or more downlink signals, which do not cause interference, and one or more downlink signals, which cause interference, are received from the network device by means of corresponding reception beams respectively indicated by indication information related to interference. Information related to a beam selected from a set of transmission beams transmitted by the network device is transmitted to the network device, while the selected beam is a beam selected based on indication information related to interference and measurement result obtained by measurement of one or more downlink signals, which do not cause interference, and one or more downlink signals, which cause interference.

EFFECT: increase in the efficiency of beam adjustment.

48 cl, 8 dwg

Description

The field of technology to which the invention belongs

The present disclosure relates to the field of communication technologies, in particular to a beam-based communication technology in a communication system, and in particular to a beam-tuning method, apparatus, and system for a communication system.

State of the art

In the mobile communication system, the transmission is carried out by beam, namely, the signal is transmitted in a specific direction in space to achieve a higher gain of the antenna array. The beam can be implemented using technology such as beamforming. For example, an important direction in high-frequency (high frequency, HF) communications is analog and digital hybrid beamforming (hybrid Beamforming). Thus, the level of loss of the high frequency signal caused by the transmission distance can be reduced, and the complexity and cost of the equipment can further be within an acceptable range.

Beam-based communication involves the need to perform beam alignment between the transmit side and the receive side. In analog beamforming and digital and analog hybrid beamforming, it is necessary to adjust the analog beamforming weights on both the receive side and the transmit side to match the beamformed by analog beamforming or digital and analog hybrid beamforming with the beam on the peer side tie, that is, the beams are matched, where the beamforming weight is typically obtained by transmitting an adjustment signal. The result of the beam alignment determines whether the signal can be transmitted normally. With higher requirements for communication quality, in addition to beam matching, more communication factors must be considered in beam tuning to improve communication quality.

Disclosure of the essence of the invention

The present disclosure proposes a method, apparatus, and system for beam-aligning to perform beam-alignment in consideration of another coupling factor for efficient beam-alignment on demand.

According to a first aspect, a beam tuning method and apparatus are provided.

In a possible implementation, the method is applied to a terminal device. The network side transmits indication information related to interference to the terminal side, so that the terminal takes into account the appropriate interference factor during beam selection to effectively adjust the beam on demand. The method includes: receiving indication information related to interference transmitted by the network device; receiving a downlink signal transmitted by the network device via two or more beams, the two or more beams including an interference beam; and transmitting, to the network device, information related to the selected beam, where the selected beam is the beam selected based on the interference-related indication information and the measurement result of the downlink signal. It can be understood that interference is determined by the network device. Alternatively, the network device may determine interference based on the presence of a signal transmitted to another terminal on the beam used to transmit the downlink signal to the terminal, whether the beam is being used as a serving beam to serve another terminal, and the like, and transmit guidance information related to interference to the terminal.

Optionally, the downlink signal includes, but is not limited to, a primary synchronization signal (Primary Synchronization Signal, PSS for short)/secondary synchronization signal (Secondary Synchronization Signal, SSS for short), a physical downlink control channel demodulation reference PDCCH-DMRS, PDSCH-DMRS Physical Downlink Demodulation Reference, PTRS Phase Tracking Reference, Channel status information reference signal (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in New Radio (New Radio, NR for short), fine synchronization signal (Time / frequency tracking Reference Signal, TRS for short) (which is absent in LTE) and the like.

In this implementation, the beam is selected taking into account the interference factor of the beam alignment, so that efficient beam alignment on demand can be realized.

Accordingly, a beam adjusting device is provided. The device may implement the corresponding method according to the first aspect. For example, the device has a limited functional form and may be an object on the side of the terminal device. A particular device implementation may be a terminal device. For example, the device may be a terminal device, a chip, or a functional module in a terminal device. The above method may be implemented by software, hardware or hardware running the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device while performing a corresponding function in the method according to the first aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data required for the device. Additionally, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In an exemplary implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with a network device. The apparatus may further include a processing unit, and the processing unit is configured to select a beam based on indication information related to interference and a measurement result of the downlink signal.

According to a second aspect, a method and apparatus for beam alignment are provided.

In a possible implementation, the method is applied to a network device, such as an access node or transmission receiving point, having some access node functionality on the network side. The network side transmits indication information related to interference to the terminal side, so that the terminal considers the appropriate interference factor during beam selection to realize efficient beam alignment on demand. The method includes: transmitting indication information related to interference to a terminal device; transmitting the downlink signal to the terminal via two or more beams, where the two or more beams include an interference beam; and receiving information related to a path selected by the terminal and which is transmitted by the terminal, where the selected path is a path selected by the terminal based on the interference-related indication information and the measurement result of the downlink signal. It can be understood that interference is determined by the network device. Alternatively, the network device may determine interference based on the presence of a signal transmitted to another terminal in the beam used to transmit the downlink signal to the terminal, whether the beam is being used as a serving beam to serve another terminal, and the like, and transmit guidance information related to the interference to the terminal.

Optionally, the downlink signal includes, but is not limited to, a primary synchronization signal (Primary Synchronization Signal, PSS for short)/secondary synchronization signal (Secondary Synchronization Signal, SSS for short), a physical downlink control channel demodulation reference PDCCH-DMRS, PDSCH-DMRS Physical Downlink Demodulation Reference, PTRS Phase Tracking Reference, Channel status information reference (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in New Radio (New Radio, NR for short), fine synchronization signal (Time / frequency tracking Reference Signal, TRS for short) (which is absent in LTE) and the like.

In this implementation, the beam is selected taking into account the interference factor of the beam alignment, so that efficient beam alignment on demand can be realized.

Accordingly, a beam adjusting device is provided. The device may implement the corresponding method according to the second aspect. For example, the device is limited in functional form and may be an object on the access side. A particular device implementation may be an access point device. For example, the device may be an access point device, or may be a chip or functional module in an access point device. The above method may be implemented by software, hardware or hardware running the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device while performing a corresponding function in the method according to the second aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data necessary for the device. Additionally, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In an exemplary implementation, the device may include a transceiver unit, and the transceiver unit is configured to: transmit interference-related indication information and a downlink signal to the terminal device, and receive beam-related information transmitted by the terminal device. The apparatus may further include a processing unit, and the processing unit is configured to determine indication information related to interference.

Based on any of the technical solutions provided in the first and second aspects:

In an exemplary implementation, interference-related indication information is used to indicate a transmission resource for a downlink signal transmitted via an interference beam and/or a receive path for receiving a downlink signal transmitted via an interference beam. Optionally, the receive beam includes a receive beam for receiving a downlink signal corresponding to no interference, and the downlink signal corresponding to no interference is a downlink signal sent by a beam corresponding to no interference in two or more beams. . As a variant, that the indication information relating to interference is used to indicate a reception path for receiving a downlink signal transmitted by a path corresponding to the interference includes: indication information relating to interference is used to indicate a reception, by way of a reception path for receiving a downlink signal corresponding to no interference, a downlink signal transmitted by a beam corresponding to interference. Accordingly, receiving a downlink signal transmitted by a network device via two or more beams includes: receiving, based on interference-related indication information, by a reception beam to receive a downlink signal corresponding to no interference, a downlink signal, transmitted by the beam corresponding to the interference. It can be understood that the interference related information may indicate to the terminal to receive separately through all the reception beams to receive downlink signals corresponding to no interference, downlink signals corresponding to interference. Alternatively, the interference related information may alternatively indicate to the terminal to separate reception through some reception paths to receive downlink signals corresponding to no interference, downlink signals corresponding to interference. In addition, as an option, the indication information related to interference may alternatively indicate to the terminal device to receive, via a reception beam for receiving a downlink signal corresponding to no interference, a downlink signal corresponding to interference. In this implementation, the terminal device receives, through a reception beam for receiving a downlink signal corresponding to no interference, a downlink signal corresponding to interference, so that the terminal device can obtain the amount of interference caused by the downlink signal corresponding to the interference of another downlink signal corresponding to the absence of interference.

In an exemplary implementation, a method for indicating indication information related to interference includes an explicit indication method or an implicit indication method. In order to perform on-demand beam-tuning in consideration of the interference factor, the network device may transmit indication information related to interference to the terminal device in an explicit indication method or an implicit indication method.

In a possible implementation, the method of explicitly specifying includes: the transmission of information related to interference. Optionally, the interference related information includes at least one of: indication information for a transmission resource for transmitting a downlink signal via an interference path, and indication information for a reception path corresponding to the transmission resource. In this implementation, the operation of the terminal device can be simplified in an explicit way.

In an exemplary implementation, the implicit indication method includes: configuring indication information relating to interference, where indication information relating to interference includes indication information for a transmission resource for transmitting a downlink signal via a beam corresponding to the interference, and indication information for a reception beam for a downlink signal that corresponds to no interference and that is in a downlink signal transmitted via two or more beams; and the downlink signal corresponding to no interference is a downlink signal that is in the downlink signal and is not transmitted by the beam corresponding to interference. In this implementation, the overhead signaling can be reduced in an implicit manner.

In an exemplary implementation, the related information includes at least one of: a resource index for the downlink signal transmitted over the selected beam, received RSRP for the downlink signal transmitted over the selected beam, and interference amount information. It can be understood that the terminal may indicate the corresponding selected beam by reporting the resource index for the downlink signal, and may further report information such as received RSRP power and interference amount to the network device so that the network device can perform scheduling. Alternatively, the amount of interference may be the ratio of the received power for a downlink signal that is transmitted on the no-interference beam, and that is received on the receive path, to the received power for the downlink signal that is transmitted on the interference beam, which is received by the same receiving beam.

According to a third aspect, a method and apparatus for beam tuning are provided.

In an exemplary implementation, the method is applied to the terminal, and during beam selection, the terminal selects, given the particular selection criteria for the beam to be group-reported, the group-reported beam to implement efficient beam-tuning on demand. The method includes: receiving, by a terminal device, a downlink signal transmitted by a network device via two or more beams; and transmitting by the terminal to the network device information related to the selected beam to be reported in beam group reporting, where the beam to be reported in beam group reporting is the beam selected by the terminal according to the downlink signal reception and selection criteria. communication lines; and the selection criterion is that the downlink signals transmitted via the selected beam to be reported in group reporting are received by the terminal using the same receive parameter, or the downlink signals transmitted via the selected beam to be reported in the form of group reporting are received by the end device using various reception parameters. It can be understood that if the beam alignment is not performed properly, the beam selection criterion to be reported as group reporting is not defined. In some scenarios, the bad beam may be in the beams to be reported and the network side is unaware of the presence of the bad beam. Lack of information for the network side causes a scheduling error.

Optionally, the downlink signal includes, but is not limited to, a primary synchronization signal (Primary Synchronization Signal, PSS for short)/secondary synchronization signal (Secondary Synchronization Signal, SSS for short), a physical downlink control channel demodulation reference PDCCH-DMRS, PDSCH-DMRS Physical Downlink Demodulation Reference, PTRS Phase Tracking Reference, Channel status information reference (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in New Radio (New Radio, NR for short), fine synchronization signal (Time / frequency tracking Reference Signal, TRS for short) (which is absent in LTE) and the like.

Optionally, the related information includes at least one of the following: a resource index for the downlink signal corresponding to the beam to be reported in group reporting, received power for the downlink signal corresponding to the beam to be reported as a group report, and the amount of interference.

In this implementation, a beam is selected based on a specific beam selection criterion to be reported as group reporting in beam trim, so that efficient on-demand beam trim can be realized.

In an exemplary implementation, the method further includes: receiving, by the terminal, indication information which is a selection criterion and which is transmitted by the network device. It can be understood that for beam alignment on demand, the selection criterion can be configured by the network side.

In an exemplary implementation, the method further includes: transmitting, by the terminal device, indication information for the selection criterion to the network device. It can be understood that for beam alignment on demand, the terminal device can autonomously select the selection criterion and transmit indication information for the selection criterion to the network device so that the network side has enough information without causing a scheduling error.

In an exemplary implementation, the method further includes: receiving configuration information that is for the number of groups and/or the number of beams in each group in group reporting, and that is transmitted by the network device. For group reporting, alternatively, the network side may configure the group information, and alternatively, the group configuration may alternatively be negotiated in a unified manner.

In a possible implementation, that the beam to be reported in group reporting is the beam selected by the terminal according to the reception of the downlink signal, and the selection criteria includes: the terminal measuring the received power for the downlink signal; and determining, based on the measurement result and the selection criterion, a beam to be reported as a group reporting. It can be appreciated that, during beam selection, the terminal must consider signal quality in addition to the selection criteria for the beam to be reported as group reporting.

Accordingly, a beam adjusting device is provided. The device may implement the corresponding method according to the third aspect. For example, the device has a limited functional form and may be an object on the side of the terminal device. A particular device implementation may be a terminal device. For example, the device may be a terminal device, a chip, or a functional module in a terminal device. The above method may be implemented by software, hardware or hardware running the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device while performing a corresponding function in the method according to the third aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data required for the device. Additionally, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In an exemplary implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with a network device. The apparatus may further include a processing unit, and the processing unit is configured to select, in accordance with a downlink signal selection and reception criterion, a beam to be reported as group reporting.

According to a fourth aspect, a method and apparatus for beam alignment are provided.

In a possible implementation, the method is applied to a network device, such as an access node or transmission receiving point, having some access node functionality on the network side. During beam-tuning, a particular criterion for selecting a beam to be reported in group reporting is considered to select a beam to be reported in group reporting in order to realize effective beam-tuning on demand. The method includes: a network device transmitting a downlink signal to a terminal device via two or more beams; and receiving, by the network device, information relating to a beam to be reported as group-reported in beams, and which is transmitted by the terminal device, where the beam to be reported as group-reporting is selected by the terminal device in accordance with the downlink signal selection and reception criteria. ; and the selection criterion is that the downlink signals transmitted via the selected beam to be reported as group reporting are received by the terminal using the same receive parameter, or the downlink signals transmitted via the selected beam to be reported in the form of group reporting are received by the end device using various reception parameters. It can be understood that if the beam alignment is not performed properly, the beam selection criterion to be reported as group reporting is not defined. In some scenarios, the unsuitable beam may be in beams to be reported and the network side is unaware of the existence of the unsuitable beam. Due to insufficient information for the network side, a scheduling error occurs.

Optionally, the downlink signal includes, but is not limited to, a primary synchronization signal (Primary Synchronization Signal, PSS for short)/secondary synchronization signal (Secondary Synchronization Signal, SSS for short), a physical downlink control channel demodulation reference PDCCH-DMRS, PDSCH-DMRS Physical Downlink Demodulation Reference, PTRS Phase Tracking Reference, Channel status information reference signal (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in New Radio (New Radio, NR for short), fine synchronization signal (Time / frequency tracking Reference Signal, TRS for short) (which is absent in LTE) and the like.

Optionally, the related information includes at least one of: a resource index for the downlink signal corresponding to the beam to be reported in group reporting, received power for the downlink signal corresponding to the beam to be reported. in the form of group reporting, and the amount of interference.

In this implementation, a beam is selected based on a specific beam selection criterion to be reported as group reporting in beam trim, so that efficient on-demand beam trim can be realized.

In an exemplary implementation, the method further includes: transmitting, by the network device, indication information for the selection criterion to the terminal device. It can be understood that for beam alignment on demand, the selection criterion can be configured by the network side.

In an exemplary implementation, the method further includes: receiving, by the network device, indication information that is a selection criterion and transmitted by the terminal device. It can be understood that for beam alignment on demand, the terminal device can autonomously select the selection criterion and transmit indication information for the selection criterion to the network device so that the network side has sufficient information and no scheduling error occurs.

In a possible implementation, the method further includes: transmitting by the network device to the terminal device configuration information that is for the number of groups and/or the number of beams in each group in group reporting. For group reporting, alternatively, the network side may configure the group information, and alternatively, the group configuration may alternatively be negotiated in a unified manner.

In an exemplary implementation, that the beam to be reported as group reporting is selected by the terminal according to the reception of the downlink signal, and the selection criteria includes: the terminal measuring the received power for the downlink signal; and determining, based on the measurement result and the selection criterion, a beam to be reported as group reporting. It can be understood that, during beam selection, the terminal must consider signal quality in addition to the selection criteria for the beam to be reported as group reporting.

Accordingly, a beam adjusting device is provided. The device can implement the corresponding method according to the fourth aspect. For example, the device is limited in functional form and may be an object on the access side. A particular device implementation may be an access point device. For example, the device may be an access point device, or may be a chip or functional module in an access point device. The above method can be implemented in software, hardware or hardware by executing the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device while performing a corresponding function in the method according to the fourth aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data required for the device. Additionally, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In a possible implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with the terminal device. The apparatus may further include a processing unit, and the processing unit is configured to perform appropriate processing (eg, determining beam configuration information or determining a selection criterion).

According to a fifth aspect, a method and apparatus for beam alignment are provided.

In an exemplary implementation, the method is applied to a terminal device, and the terminal device considers the transport stream factor during beam selection in order to implement efficient on-demand beam tuning. The method includes: receiving, by a terminal device, a downlink signal transmitted by a network device via one or more beams; and transmitting, by the terminal device, to the network device, information related to the beam that is selected for reporting in one or more beams, where the beam to be reported is the transmission beam that is for the downlink signal of the corresponding channel that satisfies the rank condition and is determined by terminal device based on the downlink signal. It can be understood that the capacity of the system can be used flexibly in consideration of the traffic flow factor.

Optionally, the downlink signal includes, but is not limited to, a primary synchronization signal (Primary Synchronization Signal, PSS for short)/secondary synchronization signal (Secondary Synchronization Signal, SSS for short), a physical downlink control channel demodulation reference PDCCH-DMRS, PDSCH-DMRS Physical Downlink Demodulation Reference, PTRS Phase Tracking Reference, Channel status information reference signal (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in New Radio (New Radio, NR for short), fine synchronization signal (Time / frequency tracking Reference Signal, TRS for short) (which is absent in LTE) and the like.

In this implementation, a beam is selected taking into account the transport stream factor in the beam alignment, so that efficient on-demand beam alignment can be realized.

In an exemplary implementation, the method further includes: receiving, by the terminal, indication information that relates to a rank condition and that is transmitted by the network device. It can be understood that the transport stream can be configured by the network side to adjust the beam on demand.

In an exemplary implementation, the method further includes: transmitting, by the terminal device, indication information for the rank condition to the network device. It can be understood that for beam alignment on demand, the terminal device can autonomously select the selection criterion and transmit indication information for the selection criterion to the network device so that the network side has enough information and does not generate a scheduling error.

In an exemplary implementation, the method further includes: if the corresponding channel determined based on the downlink signal does not satisfy the rank condition, transmitting outlier indication information by the terminal to the network device.

In an exemplary implementation, the transmission by the terminal to the network device of information related to the beam that is selected for reporting in one or more beams includes: the transmission by the terminal to the network device, in the form of group reporting, of information related to the beam that is selected for reporting from one or more rays. The time-frequency resources to be reserved by the terminal device can be reduced in the form of group reporting, thereby greatly improving resource utilization.

Accordingly, a beam adjusting device is provided. The device can implement the corresponding method according to the fifth aspect. For example, the device has a limited functional form and may be an object on the side of the terminal device. A particular device implementation may be a terminal device. For example, the device may be a terminal device, a chip, or a functional module in a terminal device. The above method may be implemented by software, hardware or hardware running the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device to perform a corresponding function in the method according to the fifth aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data required for the device. Additionally, the device may further include a communication interface configured to support the device in establishing communication with another network element. The communication interface may be a transceiver.

In an exemplary implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with a network device. The device may further include a processing unit. The processing unit is configured to determine, based on the downlink signal, whether the rank (Rank) of the corresponding channel satisfies the rank condition for selecting a beam to be reported.

According to a sixth aspect, a method and apparatus for beam alignment are provided.

In a possible implementation, the method is applied to a network device, such as an access node or transmission receiving point, having some access node functionality on the network side. The transport stream factor is taken into account during beam-tuning to realize efficient on-demand beam-tuning. The method includes: transmitting, by a network device, a downlink signal to a terminal device via one or more beams; and receiving, by the network device, information that relates to a beam selected for reporting in one or more beams, and which is transmitted by the terminal device, where the beam for reporting is a transmission beam that is for the downlink signal corresponding to the channel satisfying the rank condition, and which is determined by the terminal based on the downlink signal. It can be understood that the capacity of the system can be used flexibly in consideration of the traffic flow factor.

Optionally, the downlink signal includes, but is not limited to, a primary synchronization signal (Primary Synchronization Signal, PSS for short)/secondary synchronization signal (Secondary Synchronization Signal, SSS for short), a physical downlink control channel demodulation reference PDCCH-DMRS, PDSCH-DMRS Physical Downlink Demodulation Reference, PTRS Phase Tracking Reference, Channel status information reference signal (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in New Radio (New Radio, NR for short), fine synchronization signal (Time / frequency tracking Reference Signal, TRS for short) (which is absent in LTE) and the like.

In this implementation, a beam is selected taking into account the transport stream factor in the beam alignment, so that efficient on-demand beam alignment can be realized.

In an exemplary implementation, the method further includes: transmitting, by the network device, indication information for the rank condition to the terminal device. It can be understood that the transport stream can be configured by the network side to adjust the beam on demand.

In an exemplary implementation, the method further includes: receiving, by the network device, indication information that is for a rank condition and that is transmitted by the terminal device. It can be understood that for beam alignment on demand, the terminal device can autonomously select the selection criterion and transmit indication information for the selection criterion to the network device so that the network side has sufficient information and no scheduling error occurs.

In an exemplary implementation, the method further includes: receiving, by the network device, abnormal indication information transmitted by the terminal device, wherein the deviation indication information is transmitted by the terminal device when the terminal device determines, based on the downlink signal, that there is no corresponding channel satisfying the condition rank.

In an implementation, the reception by a network device of information that relates to a beam selected for reporting in one or more beams, and which is transmitted by a terminal device, includes: the reception by a network device of information that relates to a beam selected for reporting in one or more beams , and which is reported by the end device in the form of group reporting. The time-frequency resources to be reserved by the terminal device can be reduced in the form of group reporting, thereby greatly improving resource utilization.

Accordingly, a beam adjusting device is provided. The device can implement the corresponding method according to the sixth aspect. For example, the device is limited in functional form and may be an object on the access side. A particular device implementation may be an access point device. For example, the device may be an access point device, or may be a chip or functional module in an access point device. The above method may be implemented by software, hardware or hardware running the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device while performing a corresponding function in the method according to the sixth aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data required for the device. In addition, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In a possible implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with the terminal device. The apparatus may further include a processing unit, and the processing unit is configured to perform appropriate processing (eg, determine indication information for a rank condition).

The above six aspects provide beam-tuning solutions in the downlink direction, and the following provide beam-tuning solutions in the uplink direction.

According to a seventh aspect, a method and apparatus for beam alignment are provided.

In an exemplary implementation, the method is applied to a terminal device and the terminal device takes into account the gain factor during uplink beam selection in accordance with the network device gain control indication to implement efficient on-demand beam tuning. The method includes: transmitting, by the terminal, a first uplink signal to a network device; receiving by the terminal a gain adjustment indication transmitted by the network device, wherein the gain adjustment indication is determined by the network device by measuring the first uplink signal; and transmitting, by the terminal, a second uplink signal to the network device, where the second signal is an uplink signal transmitted by the terminal after the terminal performs antenna gain control in accordance with the gain control indication.

Optionally, the uplink signal includes, but is not limited to, Sounding reference Signal (SRS for short), Physical Uplink Control Channel Demodulation Reference Signal (PUCCH De-modulation Reference Signal, PUCCH-DMRS for short), an uplink data channel demodulation reference PUSCH-DMRS, an uplink phase noise tracking reference signal (PTRS for short), and the like.

In this implementation, a beam is selected in consideration of a gain adjustment factor in uplink beam trim, so that efficient on-demand beam trim can be realized.

In an exemplary implementation, the terminal device may perform an omnidirectional sweep in space, or may perform a narrow beam sweep over a wide beam range, as specified by the network device. In the present disclosure, the terminal performs a plurality of high gain narrow beams in space, that is, transmits uplink signals through various high gain narrow beams. Alternatively, before transmitting the second uplink signal to the network device, the method further includes: receiving indication information that relates to a beam used by the terminal device for transmitting the second uplink signal and which is transmitted by the network device, where the indication of the transmission path includes at least one of: a resource index for transmitting the first uplink signal related to random access beam information in the access process and a resource identifier/SSB of a corresponding reciprocity-based CSI-RS. The resource index for the first uplink signal and the random access beam related information in the access process can be used to indicate the wide beam that was previously used by the terminal to provide a particular link to the terminal, so that the spatial scanning of the terminal can be focused on a particular band. wide beam.

Accordingly, a beam adjusting device is provided. The apparatus may implement the corresponding method according to the seventh aspect. For example, the device has a limited functional form and may be an object on the side of the terminal device. A particular device implementation may be a terminal device. For example, the device may be a terminal device, a chip, or a functional module in a terminal device. The above method can be implemented in software, hardware or hardware by executing the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to be supported by the device when performing a corresponding function in the method according to the seventh aspect. The memory is configured to be connected to the processor and stores the program (instructions) and data necessary for the device. Additionally, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In an exemplary implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with a network device. The device may further include a processing unit, and the processing unit is configured to determine the gain control.

According to an eighth aspect, a method and apparatus for beam alignment are provided.

In a possible implementation, the method is applied to a network device, such as an access node or transmission receiving point, having some access node functionality on the network side. The terminal takes into account the gain factor during uplink beam selection according to the network device gain control indication to realize efficient on-demand beam tuning. The method includes: receiving, by the network device, a first uplink signal transmitted by the terminal device; transmitting, by the network device, a gain adjustment indication to the terminal device, where the gain adjustment indication is an indication determined by the network device by measuring the first uplink signal; and receiving, by the network device, a second uplink signal transmitted by the terminal device, where the second signal is an uplink signal transmitted after adjusting the antenna gain according to the gain control indication.

Optionally, the uplink signal includes but is not limited to a Sounding Reference Signal (SRS for short), an uplink control channel demodulation reference signal (PUCCH De-modulation Reference Signal, PUCCH-DMRS for short) , an uplink data channel demodulation reference signal PUSCH-DMRS, an uplink phase noise tracking reference signal (PTRS for short), and the like.

In this implementation, a beam is selected in consideration of a gain adjustment factor in uplink beam trim, so that efficient on-demand beam trim can be realized.

In an exemplary implementation, the terminal device may perform an omnidirectional sweep in space, or may perform a narrow beam sweep over a wide beam range, as specified by the network device. In the present disclosure, the terminal performs multiple high gain narrow beams in space, that is, transmits uplink signals through various high gain narrow beams. Alternatively, before the network device receives the second uplink signal transmitted by the terminal device, the method further includes: transmitting by the network device to the terminal device indication information related to the beam used by the terminal device for transmitting the second uplink signal, where the indication The transmission path includes at least one of: a resource index for transmitting the first uplink signal related to random access beam information in the access process, and a resource identifier/SSB of the corresponding CSI-RS based on reciprocity. The resource index for the first uplink signal and related random access beam information in the access process may be used to indicate the wide beam that was previously used by the terminal to provide a particular link to the terminal, so that the terminal's spatial sweep can be focused on a specific range of the wide beam .

Accordingly, a beam adjusting device is provided. The apparatus may implement the corresponding method according to the eighth aspect. For example, the device is limited in functional form and may be an object on the access side. A particular device implementation may be an access point device. For example, the device may be an access point device, or may be a chip or functional module in an access point device. The above method can be implemented in software, hardware or hardware by executing the corresponding software.

In a possible implementation, the device may include a processor and memory. The processor is configured to support the device while performing a corresponding function in the method according to the eighth aspect. The memory is configured to be connected to the processor and stores the program (instruction) and data necessary for the device. In addition, the device may further include a communication interface configured to support the device to communicate with another network element. The communication interface may be a transceiver.

In a possible implementation, the device may include a transceiver unit, and the transceiver unit is configured to communicate with the terminal device. The device may further include a processing unit, and the processing unit is configured to determine the gain adjustment by measuring the first uplink signal.

Based on any of the technical solutions provided for in the seventh and eighth aspects:

In an exemplary implementation, the gain control specification method includes an explicit specification method or an implicit specification method. In order to perform on-demand beam-tuning based on the gain adjustment factor, the network device may send a gain adjustment indication to the terminal device in an explicit indication method or an implicit indication method.

In an exemplary implementation, the explicit indication method includes: transmitting indication information for a target antenna gain or transmitting indication information for an antenna gain adjustment factor. The operation of the terminal device can be simplified in an explicit way.

In an exemplary implementation, the implicit indication method includes: passing a calculation parameter used by the terminal to determine the transmit power, where the calculation parameter is used to allow the transmission power determined by the terminal to exceed a predetermined transmit threshold. In other words, in the implicit indication method, the terminal determines the transmission power that exceeds the threshold, so that the terminal increases the antenna transmission gain to avoid exceeding the threshold, thereby adjusting the gain. The calculation parameter includes at least one of the following: a P0 value indicated by the network device, a scaling factor α indicated by the network device, and a reference path loss estimate. Alternatively, as an option, the method of implicitly specifying includes: passing a first calculation parameter and a second calculation parameter, which are used by the terminal to determine the transmit power, where the difference between the first calculation parameter and the second calculation parameter is an antenna gain adjustment. The first calculation parameter includes a value of P0_1 specified by the network device, and the second calculation parameter includes a value of P0_2 specified by the network device. Alternatively, as an option, the implicit indication method includes: transmitting the received power and the target received power, wherein the network device receives the first uplink signal, so that the terminal adjusts the gain based on the target received power to achieve the target received power . The signaling overhead can be reduced by using implicit guidance.

The present disclosure further provides a computer storage medium. A computer program (instructions) is stored on a computer storage medium. When the program (instructions) is run on the computer, the computer is configured to execute the method in accordance with any of the above aspects.

The present disclosure further provides a computer program product. When the computer program product is executed on the computer, the computer is configured to perform a method in accordance with any of the above aspects.

The present disclosure further provides a chip. The chip stores the instruction, and when the instruction is executed on the communication device, the communication device is enabled to perform the respective methods according to the above aspects.

The present disclosure further provides a device. The device includes a memory, a processor, and a computer program that is stored in the memory and can be executed on the processor. When executing a computer program, the processor implements the appropriate methods in accordance with the above aspects.

The present disclosure further provides a device. The device includes a processor. The processor is configured to: connect to the memory, read the instructions in the memory and implement, according to the instructions, the appropriate methods according to the above aspects. It can be appreciated that the memory may be integral to the processor or may be independent of the processor.

The present disclosure also provides a device. The device includes a processor. When executing a computer program, the processor implements the appropriate methods in accordance with the above aspects. The processor may be a special purpose processor.

The present disclosure further provides a system including the above provided device on the tag side and the above provided device on the network side. The system components individually implement the respective methods according to the above aspects.

It can be understood that any device, computer storage medium, computer program product, chip or system presented above is capable of implementing the corresponding method provided above. Therefore, in order to obtain beneficial effects that can be achieved with a device, a computer storage medium, a computer program product, a chip or a system, refer to the beneficial effects of the corresponding method, and the details are not described again here.

Brief description of the drawings

Fig. 1 shows the network system architecture in the present disclosure;

fig. 2 is a flowchart of an embodiment of a beam alignment method according to the present invention;

fig. 3 is a diagram of a beam-based communication scenario according to the present invention;

fig. 4 is a flowchart of an embodiment of another beam alignment method according to the present invention;

fig. 5 is a flowchart of an embodiment of yet another beam alignment method according to the present invention;

fig. 6 is a flowchart of an embodiment of another beam alignment method according to the present invention;

fig. 7 is a simplified diagram of a terminal device according to the present invention; and

fig. 8 is a simplified diagram of a network device in accordance with the present invention.

Implementation of the invention

For the purpose of more clearly presenting the technical solutions used and the technical effects obtained in the present disclosure, the technical solutions in the present disclosure are described below with reference to the accompanying drawings in the embodiments. The detailed descriptions provide various device and/or process embodiments using block diagrams, flowcharts, and/or examples. These flowcharts, flowcharts, and/or examples include one or more functions and/or operations, such that a person skilled in the art can understand that each function and/or operation in the flowcharts, flowcharts algorithm and/or examples may be performed independently and/or in conjunction with a wide variety of hardware, software, firmware, and/or any combination thereof.

"Multiple" in the present disclosure refers to two or more than two. The term "and/or" in the present disclosure only describes association relationships for describing related objects, and represents that three relationships can exist. For example, A and/or B can represent the following three cases: only A exists, both A and B exist, and only B exists. In addition, the "/" symbol in this specification usually indicates an "or" relationship between related entities. In this disclosure, the terms "first", "second", "third", "fourth", etc. are intended to distinguish between different objects, but do not indicate a specific order of objects.

In the present disclosure, the nouns "network" and "system" are generally used interchangeably, but one skilled in the art can understand the meanings of the nouns. In some cases, all "terminals"/"terminals" referred to in this disclosure may be mobile devices, such as mobile phones, personal digital assistants, PDAs or laptops, and similar devices with communication capability. In some cases, "terminals"/"terminals" may alternatively be wearable or vehicle-mounted devices and include terminals in the future 5G network, terminals in the future evolved PLMN, and the like. Such terminal may include a removable storage device and module (e.g., including, but not limited to, a Subscriber Identification Module (SIM) application for short), a Universal Subscriber Identification Module (USIM) for short). ) or a Universal Integrated Circuit Card (UICC for short) of a Removable User Identity Module (R-UIM for short) associated with the device. "terminal"/"terminal" may alternatively refer to a non-portable device having similar capabilities, such as a desktop computer, set-top box, or network device. The term "terminal"/"terminal" may alternatively refer to any hardware or software component nt that can terminate the user's session. Optional, "user terminal", "user device", "UE", "site", "station", "STA", "user device", "user agent", "User Agent", "UA", "user" , "device", "mobile device", and "device" are replacement terms that are synonymous with the terms "terminal"/"terminal device" in this specification. For ease of description, the above devices are collectively referred to as a user device or UE in this disclosure.

The "access node" referred to in this disclosure is a network device, is a device deployed in a radio access network to provide a wireless communication function for a terminal device, and has functions such as scheduling and configuring a downlink signal for a UE. The access node may include various forms of macro base stations, micro base stations, relay stations, access points, etc., may be a base transceiver station (Base Transceiver Station, abbreviated as BTS) in the Global System Mobile communications (Global System Mobile communications , GSM for short) or Code Division Multiple Access (CDMA for short), or NodeB (NodeB, NB for short) in Wideband Code Division Multiple Access (WCDMA for short)) or an evolved NodeB (Evolved Node B, eNB or eNodeB for short) in the Long Term Evolution (LTE for short) standard, or a relay station, or an access point, or a transmission node, or a transmission reception point , TRP or TP for short) in an NR (New Radio, NR for short) or Next Generation NodeB (generation nodeB, gNB for short) system, sai t wireless reliability (Wireless-Fidelity, Wi-Fi for short), wireless transport node, small cell, or micro base station, or base station in a 5th generation mobile communication network (5 ^th Generation Mobile Communication, for short), etc. .P. This is not limited in the present disclosure. In systems using different radio access technologies, a device that has the function of an access point may have different names. For ease of description, in the present disclosure, the aforementioned devices providing a wireless communication function for a UE are collectively referred to as an access point.

In the present disclosure, beam-based communication means that in a mobile communication system, transmission is performed using a beam, namely, a signal is transmitted in a certain direction in space to achieve a higher antenna array gain. The beam can be implemented using technology such as beamforming. For example, an important area of research in the field of high frequency (HF) communications is analog and digital hybrid beamforming (hybrid Beamforming). Thus, it is possible to effectively reduce the high-frequency signal loss caused by the transmission distance, and it is possible to further control the complexity and cost of the equipment within an acceptable range.

In the technologies in this disclosure, related terms are defined as follows:

Quasi-co-location (QCL for short): A quasi-co-location relationship is used to indicate that a set of resources has one or more of the same or similar association attributes. The same or similar communication configuration may be used for a plurality of resources having a quasi-sharing relationship. For example, if two antenna ports have a quasi-co-occurrence relationship, the large scale property of the channel over which a signal is transmitted to one port can be inferred from the large scale property of the channel over which the signal is transmitted to the other port. The large-scale property may include delay spread, average delay, Doppler spread, Doppler frequency shift, average gain, receive parameter, receive beam number of the terminal, transmit/receive channel correlation, angle of arrival, receiver antenna spatial correlation, dominant angle of arrival (Angle -of-Arrival, AoA), average angle of arrival, AoA spread, etc. Specifically, the quasi-alignment indication is used to indicate whether at least two antenna port groups having quasi-alignment relationships: the quasi-alignment indication is used to indicate whether the reference signals of channel state information at least at least two groups of antenna ports from the same transmission point; or a quasi-alignment indication is used to indicate whether the channel state information reference signals are transmitted on at least two antenna port groups from the same beam group.

QCL assumption: It is assumed whether there is a QCL relationship between two ports. A configuration and indication for guessing quasi-co-occurrence can be used to help the receiving side receive and demodulate the signal. For example, the receive side can determine that there is a QCL link between port A and port B. In other words, the large scale parameter of the signal measured at port A can be used to measure and demodulate the signal at port B.

Beam: Beam is a communication resource. The beam may be wide, narrow, or another type. The beamforming technology may be beamforming technology or other technology. The beamforming technology may in particular be a digital beamforming technology, an analog beamforming technology, or a digital/analogue hybrid beamforming technology. Different beams can be considered as different resources. The same information or different information can be transmitted by different beams. Alternatively, a plurality of beams having the same or similar communication functions can be considered as one beam. One beam may include one or more antenna ports configured to transmit a data channel, a control channel, a sounding signal, and the like. For example, the transmit beam may be a signal power distribution generated in different directions in space after the signal is transmitted through the antenna, and the receive beam may be a signal power distribution in different directions in space of the radio signal received from the antenna. It can be understood that one or more antenna ports forming one beam can also be considered as one set of antenna ports. In protocol, a beam may also be referred to as a spatial filter.

Beam information can be identified using index information. Alternatively, the index information may correspond to a resource identifier configured for the UE. For example, the index information may correspond to an ID or resource configured for a Channel status information Reference Signal (CSI-RS for short), or may correspond to an ID or resource configured for an uplink Sounding Reference. Signal, abbreviated as SRS). Alternatively, as an option, the index information may be index information explicitly or implicitly transmitted by a signal or channel transmitted by a beam. For example, the index information may be the index information of a beam indicated by a synchronization signal or a broadcast channel transmitted by the beam.

Alternatively, as an option, the beam information can be identified using an absolute beam index, a relative beam index, a logical beam index, an antenna port index corresponding to the beam, an antenna port group index corresponding to the beam, a temporal downlink sync block index communications; Beam pair link (BPL) information, Tx parameter corresponding to the beam, Rx parameter corresponding to the beam, Transmission weight corresponding to the beam, weight matrix, weight vector (weight vector), the weight factor of the reception corresponding to the beam, or their indices; the transmit codebook corresponding to the beam, the receive codebook corresponding to the beam, or their indices.

Spatial QCL: Spatial QCL can be considered as a type of QCL. Spatial can be understood from two perspectives: the transmitting side or the receiving side. From the point of view of the transmission side, if two antenna ports are in spatial quasi-alignment, this means that the beam directions corresponding to the two antenna ports are the same in space. From the point of view of the receiving side, if the two antenna ports are in spatial quasi-co-registration, this means that the receiving side can receive in the same beam direction the signals transmitted on the two antenna ports.

Fig. 1 shows the architecture of the network system in the present disclosure. The present disclosure is applicable to a multi-carrier communication system based on beam 300, such as 5G New Radio (NR for short) shown in FIG. 1. The system includes an uplink (from UE 200 to access node 100) and a downlink (from access node 100 to UE 200) in a communication system. Communication on both the uplink and the downlink is performed based on a beam 300 that is directed in the spatial direction. According to the Long Term Evolution (LTE for short)/NR protocol, physical layer uplink communication includes transmission of an uplink physical channel and transmission of an uplink signal. The uplink physical channel includes Random access channel (PRACH for short), Physical uplink control channel (PUCCH for short), Physical uplink shared channel , PUSCH for short) and the like. The uplink signal includes an SRS channel sounding signal, an uplink control channel demodulation reference signal (PUCCH De-modulation Reference Signal, PUCCH-DMRS for short), an uplink data channel demodulation reference PUSCH-DMRS, a phase tracking signal uplink noise (phase noise tracking reference signal, PTRS) and the like. Downlink communication includes downlink physical channel transmission and downlink signal transmission. A downlink physical channel includes a Physical broadcast channel (PBCH), a Physical downlink control channel (PDCCH for short), a downlink data channel (Physical downlink shared channel, PDSCH for short), and etc. The downlink signal includes Primary Synchronization Signal (PSS for short)/Secondary Synchronization Signal (Secondary Synchronization Signal, SSS for short), Downlink Control Channel Demodulation Reference PDCCH-DMRS, Data Channel Demodulation Reference downlink PDSCH-DMRS, PTRS phase noise tracking signal, Channel status information reference signal (CSI-RS), Cell reference Signal (CRS) (which is absent in NR), fine synchronization signal (Time/frequency tracking Reference Signal, abbreviated as TRS) (which is not available in LTE) and the like.

In beam-based communication, it is necessary to perform beam alignment between the access node 100 and the UE 200. During the initial access process after beam alignment, the access node 100 and the UE 200 reach a preliminary beam alignment, and then the UE 200 can access the network. Thus, in the beam alignment process, the access node 100 configures the group of reference signals and/or blocks of synchronization signals and transmits the group of reference signals and/or blocks of signals of signals through different transmission paths to the UE 200 for measurement, and the UE 200 receives the group of reference signals and/or or blocks of synchronization signals by means of a receive beam and selects one or more transmit beams for feedback to the access node 100 . After the UE 200 accesses the network, taking into account factors such as the movement and changing environment of the UE 200, between the access node 100 and the UE 200 still needs to be performed beam adjustment aimed at beam steering to ensure communication quality. Beam steering includes uplink beam steering and downlink beam steering. The uplink beam steering is mainly classified into two types: uplink beam steering based on the uplink signal and uplink beam steering based on the downlink signal. Uplink beam steering based on the uplink signal typically does not require beam matching assumption, but uplink beam steering based on the downlink signal typically requires beam matching assumption. In the uplink beam steering based on the uplink signal (where, for example, the uplink signal is an SRS), the access node 100 may configure an SRS resource set for the UE 200 to indicate that the set function is beam management (SetUse=BeamManagement) and indicates whether the UE 200 needs to use the same transmission beam or different transmission beams to transmit SRSs on different SRS resources. If the access node 100 instructs the UE 200 to use the same transmission beam, the SRS resource set may be used to adjust the receive beam on the access node 100 side. If the access node 100 instructs the UE 200 to use different transmission beams, the SRS resource set can be used to adjust the transmission beam on the UE 200 side. feedback on the downlink signal. Based on the beam matching, the receive beam selected for the terminal side after the downlink alignment can be used as a reference for the transmit beam for uplink transmission.

In the present disclosure, in the system shown in FIG. 1, beam tuning between access node 100 and UE 200 takes into account more communication factors. For example, an interference factor is taken into account in downlink beam steering. Access node 100 obtains a priori information and learns that one or more signals are transmitted via one or more beams 300. After UE 200 gains access to the network, if access node 100 transmits a downlink signal to UE 200 via beam 300, the node The access 100 uses the beam 300 as an interference and transmits indication information related to the interference to the UE 200 for indication by an explicit or implicit indication method. The UE 200 considers the interference factor when the UE 200 selects the beam. If the refinement factor that the UE 200 receives the downlink signal transmitted by the access node 100 through different beams 300 is taken into account in the downlink beam control during beam selection, the UE 200 selects according to the refined beam selection criterion, which will be reported as group reporting, namely, UE 200 receives the downlink signal using the same reception parameter or different reception parameters. The selection criterion may be preconfigured by the access node 100 for the UE 200. Alternatively, the UE 200 may autonomously select the selection criterion and transmit indication information for the selection criterion to the access node 100 so that the network side has enough information and does not generate a scheduling error. If the transport stream factor of the access node 100 is taken into account in downlink beam steering, then the UE 200 selects a beam considering the transport stream factor based on the channel estimate. The transport stream state may be preconfigured by the access node 100 for the UE 200 using a rank indication. Alternatively, the UE 200 may autonomously select a transport stream condition and transmit indication information for the rank condition to the access node 100 so that the network side has sufficient information and does not cause a scheduling error. If the uplink coverage factor is taken into account in the uplink beam steering, then the access node 100 determines, based on the quality of the previously received uplink signal that is transmitted by the UE 200, whether it is necessary to perform gain control in the subsequent uplink beam of the UE 200 to increase uplink coverage without adjusting the uplink transmit power. When determining that the UE 200 needs to adjust the transmit antenna gain, the access node 100 sends a gain adjustment indication to the UE 200, and the UE 200 adjusts the antenna gain based on the gain adjustment indication, and then transmits the uplink signal.

In the present disclosure, both uplink beam adjustment and downlink beam adjustment are performed as necessary based on various conditions, so that a higher communication quality requirement can be satisfied. It should be noted that FIG. 1 merely shows an example of a network system architecture in the present disclosure, and the present disclosure is not limited thereto.

Embodiment 1

In the network, the UE establishes a connection with an access node, and the UE and the access node perform beam alignment using the method in this embodiment, so that the UE takes into account a specific factor, such as an interference factor, when selecting a beam. Thus, during scheduling, the access node can provide a higher quality communication service to the UE. It should be noted that the interaction between the UE and the access node is used as an example for description in this embodiment and subsequent embodiments, and the present disclosure is not limited to this. When a TRP transmission receiving point controlled by an access node in the network has some functions associated with the access node, the present disclosure may further apply to a scenario in which the UE interacts with the TRP to perform beam tuning. According to this embodiment of the present invention, in FIG. 2 is a flowchart of an embodiment of a beam alignment method according to the present invention. For ease of understanding the solution, the behavior on both the UE side and the access node side is described in this embodiment and in subsequent embodiments, and is described generally in terms of all sides of the interaction. However, this is not limited to the case in which the improvement of the system is that the steps on all sides of the interaction must be performed together. The technical solution presented in this disclosure has improvements from all sides in the system.

The method includes the following steps.

S101: The access node transmits indication information related to interference to the UE.

When an access node transmits signals to different UEs via different beams, the signals transmitted via different beams may interfere with each other. Even if the power of the signal transmitted through one beam is relatively high, the communication quality may be degraded due to strong interference. After the UE gains access to the network, the access node can determine in the beams used for the adjustment performed by the UE, and based on the case in which the signal is still transmitted by the beam and the other case, that the beam is the object of indication information related to to interference, and transmitting interference-related indication information to the UE. The scenario in which there is interference, as shown in FIG. 3. FIG. 3 is a diagram of a beam-based communication scenario. The access node 100 transmits data to the UE 2 via transmission beam 2. Further, the access node 100 provides a beam alignment resource to UE 1, and the access node 100 transmits indication information related to interference to UE 1 to indicate that UE 1 should consider interference caused by transmission path 2 when performing beam alignment. For UE 1, if interference is ignored because transmit beam 1 and receive beam 1 (receive parameter 1) of UE 1 are line-of-sight (LOS) aligned, the link including transmit beam 1 and receive beam 1 (parameter 1 reception), has minimal attenuation. However, since the transmission path 3 and the reception path 2 (reception option 2) are aligned on the reflection path, the communication channel including the transmission path 3 and the reception path 2 (reception option 2) has a relatively large attenuation. If the effect of interference caused by signal transmission in transmission path 2 is not taken into account, it is obvious that transmission path 1 and reception path 1 are the best combination, and UE 1 should feedback the identifier of transmission path 1 to access node 100. However, when UE 1 uses reception beam 1, UE 1 experiences interference due to a signal on transmission beam 2. If the interference caused by transmission path 2 is relatively large, then UE 1 should not select transmission path 1 as the serving beam and feedback the identifier of transmission path 1.

Alternatively, indication information related to interference may be transmitted in the configuration information transmitted by the access node to the UE. Alternatively, indication information relating to interference may be transmitted using a Radio Resource Control (RRC for short) message and/or Downlink Control Information (Control Information Downlink, DCI for short) or may be transmitted in terminal by adding indication information related to interference in the MAC CE.

Alternatively, the indication information relating to interference may be indicated as an explicit indication or an implicit indication. The following is an example in which the configuration information conveys indication information related to interference used for description. It should be understood that the present disclosure is not limited to this example. It should be noted that, in order to clarify the relationship of configuration information, the following descriptions begin with the access step, and include other steps before this step that are not necessary to solve the technical problem in this disclosure:

In the initial access process, the access node and the UE achieve beam pre-alignment for the first time, and then the UE can access the network. In this case, a synchronization signal block (SS/PBCH block, abbreviated as SSB) is used as an example. For the access node and the UE, the beam related information depends on the SSB that is initially accessed, namely, the UE can support the following relationship in this case.

SSB index #0 Beam No. 0 reception

In NR, the beam indication for the corresponding beam transmitted by the beam or reference signal that is used on the downlink channel is performed by associating the beam indication with a reference resource index in the Transmission Configuration Indicator (TCI) state table for short. For example, the base station configures the TCI state table (corresponding to the TCI states in 38.331) with upper layer RRC signaling. TCI is a way to specify a beam. For example, the TCI structure looks like this:

TCI-State::= SEQUENCE {

tci-StateId TCI-StateId,

qcl-Type1 QCL-Info,

qcl-Type2 QCL-Info

...

}

QCL-Info ::= SEQUENCE {

CellServCellIndex

bwp-Id BWP-Id

referenceSignal CHOICE {

csi-rs NZP-CSI-RS-ResourceId,

ssb SSB-Index,

csi-RS-for tracking NZP-CSI-RS-ResourceSetId

},

qcl-Type ENUMERATED {typeA, typeB, typeC, typeD},

...

}

The TCI may include a plurality of parameters such as cell number, BWP ID, reference signal ID, sync block ID, and QCL type. The terminal may determine the reception method as indicated by the TCI. For example, the control channel beam indication is a TCI state, the terminal may receive the control channel using the QCL guess corresponding to the QCL type in the TCI state, used to receive the reference signal or sync block corresponding to the reference signal or signal sync block ID in TCI condition.

Accordingly, the access node may use SSB index #0 as a beam reference, configure the information as TCI, and notify the UE of the TCI.

TCI #0 SSB index #0

After receiving the configuration information on the UE side, the following correspondence is maintained:

TCI #0 SSB index no. 0 Beam No. 0 reception

The following uses CSI-RS as an example. The access node may configure the CSI-RS resource for the UE for additional beam steering. For accurate beam alignment, the access node and the UE may separately scan their transmit and receive beams. When configuring the CSI-RS resource (resource), the access node may indicate the beam direction of the CSI-RS resource to facilitate reception of the CSI-RS resource performed by the UE. For example, the access node configures CSI-RS resource #x and CSI-RS resource #y, and instructs the UE to perform a reception beam sweep. It should be noted that in this specification, the resource index is configured to indicate/represent the corresponding CSI-RS. In the following, the CSI-RS resource # is used to represent the corresponding CSI-RS, and the CSI-RS is again not described separately.

CSI-RS resource no. x TCI No. 0 CSI-RS resource #y TCI No. 0 Measurement method Receive Beam Sweep

After receiving the above configuration, the UE may adjust the receive antenna parameter. For example, the UE further determines, based on the reception beam #0 corresponding to TCI #0, to use reception beam #1 and reception beam #2 to measure the CSI-RS of resource #1 and the CSI-RS of resource #2. Thus, the following associative relations are obtained.

CSI-RS resource no. x Beam No. 1 reception CSI-RS resource #y Beam No. 2 reception

It should be noted that the reception beam sweep or the transmission beam sweep is controlled using the ON/OFF value of the repetition field in NR. In order not to introduce too many concepts, only these terms are used for description.

The TCI state can then be reconfigured on the access node side. SSB index #0, CSI-RS resource #x and CSI-RS resource #y are the signals that were transmitted/measured.

TCI No. 0 SSB index no. 0 TCI No. 1 CSI-RS resource no. x TCI #2 CSI-RS resource #y

Upon receiving the configuration, the UE receives the following association relationships:

TCI No. 0 SSB index no. 0 Beam No. 0 reception TCI No. 1 CSI-RS resource no. x Beam No. 1 reception TCI #2 CSI-RS resource #y Beam No. 2 reception

Based on the configuration of the transmitted interference-related indication information, in this embodiment, measurement with known interference is performed, and the access point side can reconfigure the beam steering resource. For example, indication information relating to interference is indicated by an implicit indication method. A possible configuration is: beam steering resources {CSI-RS resource #1, CSI-RS resource #2, and CSI-RS resource #3}, and the following reference signal resource QCL indications:

CSI-RS resource #1 TCI No. 1 CSI-RS resource #2 CSI-RS resource #3 TCI #2

It may be indicated that a resource that is in the beam steering resource set and does not have a QCL indication is interference. It can be learned that CSI-RS resource #2 in this example indicates interference.

Alternatively, in this embodiment, indication information related to interference is explicitly indicated. When a measurement is made with known interference, the possible configuration is: beam steering resources {CSI-RS resource #1, CSI-RS resource #2 and CSI-RS resource #3}, explicit indication of the interferer {CSI-RS resource #2}, and the following reference signal resource QCL indications:

CSI-RS resource #1 TCI No. 1 CSI-RS resource #2 TCI #1 and TCI #2 CSI-RS resource #3 TCI #2

It can be recognized that in this example, CSI-RS resource #2 is explicitly indicated as an interferer and the UE is indicated for separate reception of CSI-RS resource #2 by receive beam 1 for receiving CSI-RS resource #1 and receive beam 2 for receiving CSI -RS resource No. 3 for measuring interference.

If one RS resource can correspond to only one TCI state when indication information related to interference is explicitly indicated and a measurement with known interference is performed, a possible configuration is: beam steering resources {CSI-RS resource #1, CSI-RS resource # 2, CSI-RS resource #3 and CSI-RS resource #4}; an explicit indication of the interferer {CSI-RS resource #2 and CSI-RS resource #4}, where both CSI-RS resource #2 and CSI-RS resource #4 are beams (e.g., beam 2 in FIG. 3), corresponding to the interference; and the following QCL indication of the resource of the reference signal:

CSI-RS resource #1 TCI No. 1 CSI-RS resource #2 TCI No. 1 CSI-RS resource #3 TCI #2 CSI-RS resource #4 TCI #2

Alternatively, another way to configure is as follows:

Beam Quality Measurement Interference beam measurement QCL indication CSI-RS resource #1 CSI-RS resource #2 TCI No. 1 CSI-RS resource #3 CSI-RS resource #2 TCI #2

It can be understood that several of the above configuration methods are intended to notify the UE that CSI-RS resource #2 (in some cases, additionally CSI-RS resource #4) is interference and that the UE needs to consider the effect of interference when additional beam selection. It should be noted that the above configurations are merely examples. In the present disclosure, the indication of the interference is not limited to the above examples, and the indication information relating to the interference may be used to indicate the transmission resource for the downlink signal transmitted by the interference path and/or the reception path for receiving the downlink signal transmitted by means of a beam corresponding to interference. Alternatively, the indication information may not only indicate to the terminal to receive separately through all reception paths to receive downlink signals corresponding to no interference, downlink signals corresponding to interference. Alternatively, the interference-related indication information may alternatively indicate to the terminal to separate reception through some reception paths to receive downlink signals corresponding to no interference, downlink signals corresponding to interference. Further, alternatively, the indication information relating to interference may alternatively indicate to the terminal to receive via a reception beam to receive a downlink signal corresponding to no interference, a downlink signal corresponding to interference. Thus, the terminal device receives, via a reception beam for receiving a downlink signal corresponding to no interference, a downlink signal corresponding to interference, so that the terminal device can obtain information about the ratio of the interference caused by the corresponding downlink signal to the interference of another downlink signal. communication lines corresponding to the absence of interference. Alternatively, for the downlink signal corresponding to the specified interference, the terminal may alternatively receive, by default, the downlink signal via a receive beam to receive the downlink signal corresponding to no interference without specifying the access node.

S102: The access node transmits the downlink signal via two or more beams, where the two or more beams include a beam corresponding to interference.

Based on the corresponding configuration described above, after the configuration is performed, the access node transmits a downlink signal to perform beam alignment based on the interference measurement. The downlink signal includes, but is not limited to, Primary Synchronization Signal (PSS for short)/Secondary Synchronization (SSS for short), Downlink Control Channel Demodulation Reference PDCCH-DMRS, Reference Signal PDSCH-DMRS downlink data channel demodulation, PTRS phase noise tracking signal, Channel status information reference signal (CSI-RS), Cell Reference Signal (CRS for short) (which is absent from NR ), a precise timing signal (Time/frequency tracking Reference Signal, abbreviated as TRS) (which is not available in LTE), and the like. Alternatively, a physical downlink channel and a physical downlink channel can be additionally used, which includes a broadcast channel (Physical broadcast channel, PBCH for short), a downlink control channel (Physical downlink control channel, PDCCH for short) , a downlink data channel (Physical downlink shared channel, PDSCH for short), and the like.

S103. The UE measures the received downlink signal and selects a beam.

The UE receives the downlink signal based on the configuration performed by the access node. The above example is used for description. The UE receives the CSI-RS resource #1 via reception beam 1 and receives the CSI-RS resource #3 via reception beam 2. Further, the UE further receives, based on the indication information related to the interference, a downlink signal sent by the beam corresponding to the interference. For interference measurement, the effect caused by interference on different reception beams (or reception parameters) is taken into account, and the UE separately receives CSI-RS resource #2 (including CSI-RS resource #4 in some cases) corresponding to the interference via beam 1 receive, and receive beam 2. Alternatively, the UE may pair and select a transmit beam and a receive beam by comparing the RSRP #1-1 / RSRP #1-2 ratio of the reference signal received power (Reference Signal Received Power, RSRP for short) RSRP #1-1 CSI-RS of resource #1 to received power reference RSRP #1-2 CSI-RS of resource #2 of receive path 1 with ratio RSRP #2-3 / RSRP #2-2 of RSRP #2 received power reference -3 CSI-RS of resource #3 to received power reference RSRP #2-2 CSI-RS of resource #2 of receive beam 2. For example, if RSRP #1-1 / RSRP #1-2 < RSRP #2-3 / RSRP #2-2, receive beam 2 (or receive parameter 2) is the best receive beam, and the transmit beam corresponding to the CSI-RS resource No. 3 may be used as the serving beam selected by the UE. Alternatively, a reference signal received quality (RSRQ for short), a signal to interference plus noise ratio (SINR), or the like, which is calculated by the CSI-RS resource #2, because The interference may alternatively be used as an indication to compare beam quality.

S104: The UE returns information related to the selected beam to the access node.

After beam selection, the UE may report, using at least one of the following information, the selected transmission beam to be used as the serving beam: resource index (CSI-RS resource index, CRI for short) of the downlink reference signal transmitted via the corresponding beam, for example {CRI No. 1}; received power (eg, RSRP #1-1) for the downlink signal; interference amount, where possible the interference amount can be a ratio of, for example, RSRP #1-1 / RSRP #1-2, the received power (for example, RSRP #1-1) for the downlink signal to the received power (for example, RSRP #1 -2) for downlink signal corresponding to interference; and received power (eg, RSRP #1-2) for the downlink signal corresponding to interference. Alternatively, an indication such as RSRQ or SINR may alternatively be used. Appropriate information is reported so that the access node recognizes the beam selected by the UE. Alternatively, the access node may additionally learn information such as received power and amount of interference. This provides a better reference for additional configuration performed by the access node.

According to the beam alignment method in this embodiment of the present invention, a beam is selected in consideration of the beam alignment interference factor, so that efficient beam alignment on demand can be realized.

Embodiment 2

Fig. 4 is a flowchart of an embodiment of another beam alignment method according to the present invention. The difference between this embodiment and Embodiment 1 is that on-demand beamfitting in this embodiment is for reporting multiple beam combinations, such as for group reporting. Taking into account a factor (eg, interference) that can affect the result of group reporting, the beam to be reported as group reporting is selected using a particular beam selection criterion to implement beam alignment. To facilitate understanding of the solution, this embodiment describes the behavior on both the UE side and the access node side, and is described generally in terms of all sides of the interaction. However, this is not limited to the case in which the improvement of the system is that the steps on all sides of the interaction must be performed together. The technical solution presented in this disclosure has improvements from all sides in the system.

The method includes the following steps.

S201: The UE determines a selection criterion for a beam to be reported as group reporting.

During beam tuning, the network side transmits a downlink signal to the UE via a transmission beam, the UE receives a downlink signal via a receive beam (corresponding to a receive parameter), and the UE measures the downlink signal and selects a serving beam. In this embodiment, the beam selection is for the multicast reporting case, that is, the selected transmission beam on the network side in a sense satisfies the "simultaneous reception" performed by the UE. For example, if the network side transmits CSI-RS #1 via transmission beam 1, transmits CSI-RS #2 via transmission beam 2, and transmits CSI-RS #3 via transmission beam 3, and the UE may receive CSI-RS #1 and CSI-RS No. 3 on the corresponding CSI-RS resource No. 1 and the corresponding CSI-RS resource No. 3 by the receive beam of the UE, it can be assumed that if the UE simultaneously uses both the CSI-RS resource No. 1 and the CSI-RS resource No. 3, the UE can simultaneously receive both CSI-RS #1 and CSI-RS #3. Therefore, during beam selection, the UE reports beam 1 and beam 3 as a group (where, in particular, during implementation, the UE may select and report beam 1 and beam 3 by reporting CSI-RS resource 1 and CSI-RS resource #3 as a group).

In the example above, there may be special cases for "simultaneous reception". In one case, the UE receives CSI-RS #1 and CSI-RS #3 on the corresponding CSI-RS resource #1 and the corresponding CSI-RS resource #3 via the same receive beam (using the same receive parameter). Otherwise, the UE receives CSI-RS #1 and CSI-RS #3 on the corresponding CSI-RS resource #1 and the corresponding CSI-RS resource #3 through different receive beams (using different receive parameters). Therefore, the selection criterion is that the downlink signals transmitted via the selected beam to be reported in group reporting are received by the UE using the same reception parameter, or the downlink signals transmitted via the selected beam to be reported as group reporting are received by the UE using different reception parameters.

Alternatively, for the case of multicast reporting in beamfitting, the selection criteria for the beam to be reported as multicast reporting may be configured by the network side (eg, access node or TRP) for the UE. Alternatively, the selection criterion may be conveyed in the configuration information sent to the UE, may be sent using a Radio Resource Control (RRC for short) message and/or Control Information Downlink (DCI for short) , or may be sent to the terminal by adding the selection criteria to the MAC CE. In addition, alternatively, for group reporting, the network side may configure the group information, or the group configuration may be negotiated in a unified manner. If the group information is configured by the network side, the network side sends to the UE configuration information (which can be configured using the RRC message, DCI and MAC CE similar to the previous selection criteria configuration) for the number of groups and/or the number of beams in each group in group reporting. Alternatively, the selection criterion for the beam to be reported in group reporting may alternatively be determined by the UE based on the actual situation or based on the capabilities of the UE. If the selection criterion is determined by the network side, the network side knows the selection criterion according to which the beam to be reported in the group reporting is selected. In this case, the network side can have more help information during beam scheduling. If the selection criterion is determined by the UE, the UE needs to send information about the selection criterion to the network side. Alternatively, the UE may notify the network side of the supported selection criteria before multicast reporting, or may notify the network side of the selection criteria for the beam to be reported as multicast during or after multicast reporting, so that the network side can have more help information. during beam planning. For example, it is assumed that "simultaneous reception" (assuming beam 4 and beam 5 are targeted) is implemented by UE 1 using the same reception parameter in the scenario, and "simultaneous reception" (assuming beam 1 and beam 3 are targeted) implemented by UE 1 using various reception parameters in the scenario. If beam 5 is still used by the access node to transmit a signal to UE 2, the access node cannot use beam 4 to transmit a signal to UE 1 during scheduling because the signal transmitted by the access node to UE 2 via beam 5 causes strong interference to reception performed by UE 1. In another scenario, the access node may signal to UE 1 via beam 1 and signal to UE 2 via beam 3. reception", the access node when performing planning must solve this technical problem.

S202: The access node transmits a downlink signal to the UE via two or more beams.

During beam alignment, the access node transmits the downlink signal to the UE via two or more beams, so that the UE can measure the downlink signal to realize beam alignment. Optionally, the downlink signal includes, but is not limited to, primary synchronization signal (Primary Synchronization Signal, PSS for short)/Secondary Synchronization Signal (Secondary Synchronization Signal, SSS for short), downlink control channel demodulation reference PDCCH-DMRS, Downlink Data Channel Demodulation Reference PDSCH-DMRS, PTRS Phase Noise Tracking Signal, Channel status information reference signal (CSI-RS), Cell Reference Signal, for short CRS) (which is absent in NR), a precise synchronization signal (Time / frequency tracking reference signal, for short TRS) (which is absent in LTE) and the like.

It should be noted that there is no necessary sequence between step S201 and step S202, and flexible configuration can be performed according to various solutions.

S203: The UE selects, according to a downlink signal reception and selection criterion, a beam to be reported as group reporting.

Upon receiving the downlink signal, the UE selects a beam to be reported as group reporting beams. Alternatively, the terminal measures the received power RSRP for the downlink signal and determines, based on the measurement result and the selection criteria, a beam to be reported as group reporting. Alternatively, the terminal may alternatively measure an indicator such as RSRQ or SINR of the downlink signal. It can be understood that, during beam selection, the terminal must consider signal quality in addition to the selection criteria for the beam to be reported as group reporting.

If the selection criterion is reported by the network side to the UE when the network side notifies the UE of grouping beams that can be received simultaneously using the same reception parameter into one group, the UE should be able to group beams that can be received simultaneously with using the same reception parameter, into one group and compare the beam quality of each group. When the network side instructs the UE to group the beams to be received simultaneously using different reception parameters into one group, the UE needs to group the beams to be received simultaneously using different reception parameters into one group and compare the beam quality of each group. The beam quality of one beam group may be an average of the quality of a plurality of beams in a group, or a multi-antenna channel capacity including a plurality of beams in a group, or a link stability including a plurality of beams, or the like.

If the selection criterion is determined by the UE, the UE may determine, based on an indication such as UE capabilities, beam quality, channel capacity or reliability, the grouping method most suitable for the UE, and group beams on which reception can be performed simultaneously using the same the same reception parameter in the same group or group beams, for which reception must be performed simultaneously using different reception parameters in the same group.

S204: The UE transmits to the access node information related to the selected beam, which is reported as group reporting.

That the UE transmits to the access node information related to the selected beam, which is reported as group reporting, is group reporting. Optionally, the related information includes at least one of the following: a resource index (CSI-RS resource index, CRI for short) for the downlink signal corresponding to the beam that is reported in group reporting, received power for the downlink signal corresponding to the beam that is reported as group reporting, the amount of interference (which may be a ratio of received powers), and the group identifier. The above example is used and the relevant information can be {CRI #1, CRI #3, RSRP #1, RSRP #3 and RSRP #1/RSRP #3}.

Additionally, if the selection criterion is determined by the UE, the UE may transmit to the network side during group reporting the selection criterion for the beam to be reported as group reporting. Alternatively, the selection criterion may be specified using a bitmap or the value of an appropriate field. Alternatively, the UE may add information to each group reporting to describe the grouping method. For example, a "0" bit indicates that beams in a group can be received simultaneously using the same receive parameter, and a "1" bit indicates that beams in a group can be received simultaneously using different receive parameters.

According to the beam alignment method in this embodiment of the present invention, during beam alignment, a beam is selected based on a specific selection criterion for the beam, which is reported as group reporting, to solve the technical problem when the access node performs scheduling because "simultaneous reception" may be implemented by the UE in various ways. Therefore, the method in this embodiment of the present invention can realize efficient beam alignment on demand.

Embodiment 3

Fig. 5 is a flowchart of an embodiment of yet another beam alignment method according to the present invention. The difference between this embodiment and Embodiment 1 and Embodiment 2 is that in this embodiment, the traffic flow factor is taken into account in the beam alignment on demand. To facilitate understanding of the solution, this embodiment describes the behavior on both the UE side and the access node side, and is described generally in terms of all sides of the interaction. However, this is not limited to the case in which the improvement of the system is that the steps on all sides of the interaction must be performed together. The technical solution presented in this disclosure has improvements from all sides in the system.

The method includes the following steps.

S301: The UE determines a rank condition (Rank).

Rank (Rank) MIMO channel matrix reflects the maximum number of transport streams that can be supported by the current channel. In beam-based communication, the ranks of MIMO channels including different beams or beam combinations are different. When the network side transmits data to the UE, multi-streaming can be used to effectively improve spectrum efficiency. In actual transmission, the network side must serve multiple UEs, and the number of transport streams allocated to each UE is determined using a scheduling algorithm. Therefore, the UE needs to select a beam or beam combination that can support the number of streams to form a MIMO channel for multi-stream data transmission. When receiving a downlink signal, the UE may perform channel estimation based on the downlink signal. During beam tuning, the UE may perform beam pairing and selection based on the requirements for the number of channel transport streams. Alternatively, the rank condition may be configured by the network side and sent to the UE, and the rank condition information may be transmitted using at least one of the RRC message, DCI, and MAC CE. Alternatively, the rank condition includes at least one of the following: an indication of a rank value, such as rank 2 or rank 4; MCS requirement (modulation and coding scheme) or SINR requirement, where, for example, the channel quality corresponding to each MIMO channel rank, including beams selected by the UE, must support a particular signal modulation scheme and/or coding scheme, or must be greater than the specific SINR and, alternatively, the SINR requirement may alternatively be embodied as a CQI indicator (channel quality indicator); and the minimum MCS requirement or minimum SINR requirement for each stream. Alternatively, the rank condition may further include a codebook indication. Alternatively, the rank condition may further include a beam indication. For example, the network side may direct the UE to select a beam paired with a transmission beam to form a multipath MIMO channel. Alternatively, the rank condition may be autonomously selected by the UE. During beam tuning, the UE may notify the network side of the selected rank condition so that the network side has enough information and does not cause a scheduling error.

S302: The access node transmits a downlink signal to the UE via one or more beams.

Optionally, the downlink signal includes, but is not limited to, primary synchronization signal (Primary Synchronization Signal, PSS for short)/Secondary Synchronization Signal (Secondary Synchronization Signal, SSS for short), downlink control channel demodulation reference PDCCH-DMRS, Downlink Data Channel Demodulation Reference PDSCH-DMRS, PTRS Phase Noise Tracking Signal, Channel status information reference signal (CSI-RS for short), Cell Reference Signal, CRS for short) (which is absent in NR), a precise synchronization signal (Time / frequency tracking Reference Signal, TRS) (which is absent in LTE), and the like.

It should be noted that there is no necessary sequence between step S301 and step S302, and flexible configuration can be performed according to various solutions.

S303: The UE performs channel estimation based on the downlink signal and selects a transmission path for the downlink signal corresponding to the channel satisfying the rank condition.

The UE performs beam pairing based on the reception of the downlink signal, and determines one or more beams satisfying the rank condition based on the channel matrix. In particular, one or more beams satisfying the rank condition can be understood as one or more beams that can form a channel in which the number of ranks is greater than or equal to the number of ranks in the rank condition.

S304: The UE transmits to the access node information related to the selected beam to be reported in beams.

Alternatively, the UE may group-report associated information of the selected beam to be reported, in beams, to the access node. The frequency-time resources to be reserved by the terminal device can be reduced in the form of group reporting, thereby greatly improving resource utilization. Optionally, the related information includes: a resource index for the downlink signal transmitted via the corresponding beam, or a received power for the downlink signal, or an interference amount. For details, refer to the respective descriptions in Embodiment 1 and Embodiment 2. The details are again not described here. Appropriate information is reported so that the access node recognizes the beam selected by the UE. Alternatively, the access node may additionally learn information such as received power and amount of interference. This provides a better reference for additional configuration performed by the access node.

Additionally, if the rank condition is autonomously selected by the UE, the UE may optionally notify the access node of the rank condition during beam reporting.

It can be understood that if none of the corresponding channel determined by the UE based on the downlink signal in S303 satisfies the rank condition, the UE transmits outlier indication information to the access node.

According to the beam tuning method in this embodiment of the present invention, a beam is selected in consideration of a transport stream factor in beam tuning, so that efficient on-demand beam tuning can be realized.

Embodiment 2 and Embodiment 3, respectively, provide beam selection based on selection criteria (interference taken into account) and beam selection based on the number of traffic streams. Alternatively, there may be more other factors to perform beam selection and beam grouping with reference to or instead of the factors discussed in Embodiment 2 or Embodiment 3, for example, capacity maximization, intra-group interference minimization, inter-group interference minimization, maximizing intra-group beam correlation, minimizing intra-group beam correlation, maximizing inter-group beam correlation, minimizing inter-group beam correlation, satisfying a given condition (e.g., throughput) and minimizing power consumption, satisfying a given condition (e.g., throughput) and minimizing the number of RF links used by the UE , satisfying a given condition (for example, throughput) and minimizing the number of antenna panels used by the UE, or optimizing the stability indicator (for example, block error rate (BLER) for short) ). Bandwidth is the rate at which information can be transmitted over a channel. Throughput maximization is the maximization of the transmission rate that can be supported by the beam or combination of beams selected by the UE. The UE may calculate the channel capacity by measuring channels including different beams or combinations of beams.

The downlink beam-tuning solution is described in the above embodiments, and the uplink beam-tuning solution is described in the following embodiment.

Implementation Option 4

Fig. 6 is a flowchart of an embodiment of another beam alignment method according to the present invention. The behavior on both the UE side and the access node side is described in this embodiment and is described generally in terms of all sides of the interaction. However, this is not limited to the case in which the improvement of the system is that the steps on all sides of the interaction must be performed together. The technical solution presented in this disclosure has improvements from all sides in the system.

The method includes the following steps.

S401: The UE transmits the first uplink signal to the access node.

Optionally, the uplink signal includes, but is not limited to, Sounding Reference Signal (SRS for short), Uplink Control Channel Demodulation Reference Signal (PUCCH De-modulation Reference Signal, PUCCH- for short). DMRS), an uplink data channel demodulation reference signal PUSCH-DMRS, an uplink phase noise tracking reference signal (PTRS for short), and the like.

S402: The access node determines the gain adjustment indication based on the measurement result of the first uplink signal.

In different scenarios, the uplink beam requirements of the UE are different. For example, it is necessary to explicitly tell the UE to use a narrower beam for communication.

On the downlink, the signal strength received by the UE can be briefly expressed as:

(Формула 1)

(Formula 1)

является мощностью сигнала, принятого UE,

является мощностью, с которой узел доступа передает сигнал,

является коэффициентом усиления передающей антенны узла доступа,

является коэффициентом ослабления мощности сигнала, вызванное в тракте передачи нисходящей линии связи,

фактор усиления приемной антенны UE.

is the signal strength received by the UE,

is the power with which the access node transmits a signal,

is the transmit antenna gain of the access node,

is the signal power attenuation factor induced in the downlink transmission path,

UE receive antenna gain.

In contrast, in the uplink, the strength of the signal received by the access node can be succinctly expressed as:

(Формула 2)

(Formula 2)

является мощностью сигнала, принятого узлом доступа,

является мощностью, с которой UE передает сигнал,

является коэффициентом усиления передающей антенны UE,

является ослаблением мощности сигнала, вызванное в тракте передачи и

является коэффициентом усиления приемной антенны узла доступа. Короче говоря, можно предположить, что

, а именно, ослабление мощности сигнала, вызванное трактом передачи восходящей линии связи, такое же, как ослабление, вызванное трактом передачи нисходящей линии связи.

is the strength of the signal received by the access node,

is the power with which the UE transmits the signal,

is the transmit antenna gain of the UE,

is the signal power attenuation induced in the transmission path and

is the gain of the receiving antenna of the access point. In short, it can be assumed that

, namely, the signal power attenuation caused by the uplink transmission path is the same as the attenuation caused by the downlink transmission path.

Additionally, when sending an uplink signal such as SRS, the UE needs to determine the power used to transmit the uplink signal. The basic principle of uplink transmission power control is to estimate the loss in the transmission path and determine the strength of the signal arriving at the receive side. The following is the SRS power control method.

+ другие (Формула 3)

+ others (Formula 3)

является мощностью, с которой UE передает сигнал,

является значением, указанным узлом доступа, α является коэффициентом масштабирования, указанный узлом доступа,

является потери в тракте, оцененные UE (где узел доступа может указывать опорный сигнал нисходящей линии связи для оценки потерь в трассе), и другие являются некоторыми величинами регулировки, включающие в себя полосу пропускания. В настоящем раскрытии «другие» могут рассматриваться или не рассматриваться. В качестве дополнительного примера ниже представлены описания с использованием примера, в котором «другие» временно не рассматриваются.

is the power with which the UE transmits the signal,

is the value specified by the access node, α is the scaling factor specified by the access node,

is the path loss estimated by the UE (where the access node may indicate a downlink reference signal for estimating path loss), and others are some adjustment values including bandwidth. In this disclosure, "others" may or may not be considered. As an additional example, descriptions are provided below using an example in which "others" is temporarily not considered.

Estimated path loss can be obtained as follows:

(Формула 4)

(Formula 4)

является мощностью передачи сигнала, сообщаемая узлом доступа, и

является мощностью сигнала, фактически измеренная UE, например, может быть измерена с использованием RSRP.

is the signal transmission power reported by the access node, and

is the signal strength actually measured by the UE, for example, can be measured using RSRP.

усиления приемной антенны, коэффициент

усиления передающей антенны и ослабление

мощности сигнала, вызванное трактом передачи нисходящей линии связи, учитывается при оценке потерь в тракте.The following formula 5 is obtained by replacing formula 1 with formula 4. It can be understood that the coefficient

receiving antenna gain, coefficient

transmitting antenna gain and attenuation

signal strength caused by the downlink transmission path is taken into account in the path loss estimation.

(Формула 5)

(Formula 5)

Formula (5) and formula (3) are substituted into formula (2), and "others" are temporarily not taken into account, so the following is obtained:

(Формула 6)

(Formula 6)

If α = 1, the formula simplifies as:

(Формула 7)

(Formula 7)

без изменений

(то есть, для улучшения покрытия восходящей линии связи без увеличения мощности передачи) возможным способом является увеличение

и/или увеличение

(то есть, с использованием луча передачи UE или луча приема узла доступа, имеющий более высокий коэффициент усиления).You can find out what to improve

without changes

(that is, to improve uplink coverage without increasing transmit power) a possible way is to increase

and/or increase

(that is, using the UE's transmit beam or the access node's receive beam having a higher gain).

In this embodiment, UE-side gain control is used for description. Therefore, the access node determines the gain adjustment indication of the UE based on the measurement result of the first uplink signal.

S403: The access node sends a gain adjustment indication to the UE.

In an exemplary implementation, the gain control specification method includes an explicit specification method or an implicit specification method. In order to perform on-demand beam-tuning based on the gain adjustment factor, the network device may send a gain adjustment indication to the UE in an explicit indication method or an implicit indication method.

In an exemplary implementation, the explicit indication method includes: transmitting indication information for a target antenna gain, such as an indication to send an uplink signal using a transmit antenna gain of 17 dBi; or send indication information for the antenna gain adjustment factor, that is, the indication information indicates how many dB is added to the current antenna gain, for example, antenna gain + 5 dB. The operation of the UE may be simplified in an explicit manner.

. В качестве альтернативы, в качестве варианта, способ неявного указания включает в себя: передачу принятой мощности и целевой принятой мощности, при котором узел доступа принимает первый сигнал восходящей линии связи, так что UE регулирует усиление на основании целевой принятой мощности для достижения целевой принятой мощности. Например, узел доступа сообщает по обратной связи, что качество сигнала восходящей линии связи, принятого узлом доступа, составляет -100 dBm, и требует, чтобы целевое качество оконечного устройства достигло -90 dBm. Накладные расходы на сигнализацию могут быть уменьшены с помощью неявного указания.In an exemplary implementation, the implicit indication method includes: passing a calculation parameter used by the UE to determine the transmit power, where the calculation parameter is used for the transmission power determined by the UE to exceed a given transmit power threshold. In other words, in the implicit indication method, the UE determines the transmission power that exceeds the threshold, so that the UE increases the transmit antenna gain to avoid exceeding the threshold, thereby adjusting the gain. The calculation parameter includes at least one of a P0 value specified by the network side, a scaling factor α specified by the network side, and a path loss estimation reference value. Alternatively, as an option, the implicit specification method includes: passing a first calculation parameter and a second calculation parameter that are used by the UE to determine the transmission power, where the first calculation parameter includes a P0_1 value set by the network device and the second calculation parameter includes the value of P0_2 set by the network device. For example, P0_1 is the same as the existing P0, and the transmitting antenna gain adjustment amount is implicitly reported using the difference between P0_2 and P0_1, that is, the difference between the first calculation parameter and the second calculation parameter is the antenna gain adjustment amount, that is, P _{0_2} –P _{0_1} =

. Alternatively, as a variant, the implicit indication method includes: transmitting the received power and the target received power, in which the access node receives the first uplink signal, so that the UE adjusts the gain based on the target received power to achieve the target received power. For example, the access node feedbacks that the quality of the uplink signal received by the access node is -100 dBm and requires the target quality of the terminal to reach -90 dBm. Signaling overhead can be reduced by implicit guidance.

In an exemplary implementation, the UE has multiple beamforms. For example, the UE has a plurality of low gain wide beams and a plurality of high gain narrow beams. Alternatively, there is a mapping between a wide beam and a narrow beam, and this mapping is a one-to-one, one-to-many, or many-to-one mapping. The UE may support multiple beamforms through the reporting capability. The base station may direct the UE to switch the beamform to increase the antenna gain, thereby improving the uplink transmission quality. For example, the base station may direct the UE to perform uplink transmission or uplink beam alignment using wide beam #1 and direct the UE to switch the beam shape to a narrow beam. In this case, the UE needs to perform uplink transmission or uplink beam alignment using a narrow beam corresponding to wide beam #1.

Alternatively, the gain adjustment indication may be transmitted in the configuration information transmitted by the access node to the UE, may be transmitted using an RRC message and/or DCI, or may be transmitted to the MAC CE and transmitted to the UE.

S404: The UE performs antenna gain adjustment according to the gain adjustment indication.

As indicated on the network side, the UE adjusts the antenna gain to transmit a subsequent uplink signal through the antenna after the gain adjustment.

S405: The UE transmits the second uplink signal to the access node.

As indicated/configured by the access node, the UE adjusts the antenna gain and transmits the second uplink signal to the access node after gain adjustment. That is, during the uplink beam alignment, the gain adjustment factor is taken into account. Alternatively, during beam alignment, the UE may perform an omnidirectional sweep in space, or may perform a narrow beam sweep over a wide beamband, as indicated by the network device. In the present disclosure, the UE performs multiple high gain narrow beams in space, that is, transmits uplink signals through various high gain narrow beams. Alternatively, before transmitting the second uplink signal to the network device, the method further includes: receiving an indication for information that is associated with a beam used by the UE to transmit the second uplink signal and that is transmitted by the network device, where the beam indication The transmission includes at least one of: a resource index for transmitting the first uplink signal, beam-related random access information in the access process, and a resource identifier/SSB of the corresponding CSI-RS based on reciprocity. The resource index for the first uplink signal and the beam-related random access information in the access process may be used to indicate the wide beam that was previously used by the UE to provide a specific reference for the UE so that the UE's spatial sweep can focus on the specific wide beam range.

According to the beam alignment method in this embodiment of the present invention, a beam is selected in consideration of a gain adjustment factor in uplink beam alignment, so that efficient on-demand beam alignment can be realized.

The above embodiments mainly describe the solutions provided in the embodiments of the present invention in terms of interaction between objects in the system or in terms of the internal implementation process of an object. It can be understood that in order to implement the above functions, the above various objects include hardware structures and/or software modules corresponding to various functions. One skilled in the art will readily appreciate that, in combination with the blocks and flow steps of the examples described in the embodiments disclosed in this specification, the present disclosure may be implemented in hardware or a combination of hardware and computer software. The performance of a function by hardware or hardware controlled by computer software depends on the particular application and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each particular implementation, but it should not be understood that the implementation is outside the scope of the present invention.

In embodiments of the present invention, separation of functional units may be performed at the UE and the access node in accordance with exemplary methods. For example, different functional modules may be separated according to respective functions, or two or more functions may be integrated into one processing module. An integrated module may be implemented in hardware or may be implemented in a software function module. It should be noted that in the embodiments of the present invention, the division into modules is an example and is simply a logical separation of functions. In a real implementation, a different partitioning method may be used. An example in which function modules are divided by function is used below for description.

An embodiment of the present invention further provides a terminal device. The terminal may be configured to perform the steps performed by the UE in any of FIGS. 2 and FIG. 4 - fig. 6. FIG. 7 is a simplified block diagram of a terminal device. For ease of understanding and illustration, FIG. 2 uses an example in which the terminal device is the mobile phone of FIG. 7. As shown in FIG. 7, terminal 70 includes a processor, memory, RF circuitry, an antenna, and an input/output device. The processor is generally configured to process the communication protocol and communication data for controlling the terminal device 70, executing a software program, processing software program data, and the like. The memory is generally configured to store software and data. The RF circuit is mainly configured to: perform conversions between the baseband signal and the RF signal, and process the RF signal. The antenna is mainly designed to transmit and receive radio frequency signal in the form of an electromagnetic wave. An input/output device such as a touch screen, display, or keyboard is generally configured to receive input from a user and output data to the user. It should be noted that some types of terminal devices 70 may not have an input/output device. The memory and processor may be combined together or may be located independently. Additionally, the RF circuitry and the processor may be integrated together or may be located independently.

When data is to be transmitted, after performing baseband processing on the data to be transmitted, the processor outputs the baseband signal to the RF circuit; and the RF circuit performs RF processing on the baseband signal, and then transmits the RF signal in the form of an electromagnetic wave through the antenna. When data is sent to terminal 70, the RF circuitry receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of description, in FIG. 7 shows only one memory and one processor. A real terminal may have one or more processors and one or more memories. A memory may also be referred to as a storage medium, storage device, or the like. The memory may be located independently of the processor or may be integrated with the processor. This is not limited to this embodiment of the present invention.

In this embodiment of the present invention, the antenna and the RF circuit, which have both transmit and receive functions, may be considered as a transceiver unit of the terminal device 70, and a processor, which has a processing function, may be considered as the processing unit of the terminal device 70. As shown in FIG. 7, terminal 70 includes a transceiver unit 701 and a processing unit 702. The transceiver unit may be referred to as a transceiver (including a transmitter and/or receiver), a transceiver machine, a transceiver device, a transceiver circuit, or the like. The processing unit may also be referred to as a processor, a processing board, a processing unit, a processing unit, and the like. Alternatively, the component that is in the transceiver unit 701 and which is configured to implement the receive function may be considered as the receive unit, and the component that is in the transceiver unit 701 and which is configured to implement the transmit function may be considered as the transmit unit. . In other words, the transceiver unit 701 includes a receiving unit and a transmitting unit. The transceiver unit may sometimes be referred to as a transceiver machine, a transceiver, a transceiver circuit, or the like. The receive unit may sometimes be referred to as a receive engine, a receiver, a receive circuit, and the like. The transmission unit may sometimes also be referred to as a transmitter machine, a transmitter, a transmission circuit, and the like. In some embodiments, the transceiver unit 701 and the processing unit 702 may be combined together or may be located independently. Additionally, all functions of the processing unit 702 may be integrated into a single chip for implementation. Alternatively, some functions may be integrated into one chip for implementation, and some other functions may be integrated into one or more other chips for implementation. This is not limited in the present disclosure. The term "unit" as used in this specification may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), memory, or a combinational logic circuit that executes one or more software or firmware and/ or other suitable components providing this function.

For example, in an implementation, the transceiver unit 701 may be configured to perform receive and/or transmit operations of the UE in steps S101, S102, and/or S104 in FIG. 2 and/or other steps in this disclosure. Processing unit 702 may be configured to execute S103 in FIG. 2 and/or other steps in this disclosure.

For example, in an implementation, transceiver unit 701 may be configured to perform receive and/or transmit operations of the UE at S202 and/or S204 in FIG. 4 and/or other steps in this disclosure. Processing unit 702 may be configured to execute S201 and/or S203 in FIG. 4 and/or other steps in this disclosure.

For example, in an implementation, the transceiver unit 701 may be configured to perform receive and/or transmit operations of the UE at S302 and/or S304 in FIG. 5 and/or other steps in this disclosure. Processing unit 702 may be configured to execute S301 and/or S303 in FIG. 5 and/or other steps in this disclosure.

For example, in an implementation, the transceiver unit 701 may be configured to perform receive and/or transmit operations of the UE in S401, S403, and/or S405 in FIG. 6 and/or other steps in this disclosure. Processing unit 702 may be configured to execute S404 in FIG. 6 and/or other steps in this disclosure.

An embodiment of the present invention further provides a network device. The network device may serve as an access point or a transmission receiving point and is configured to perform the steps performed by the access point in any of FIGS. 2 and FIG. 3 - fig. 6. FIG. 8 is a simplified block diagram of a network device. The network device 80 includes a part 801 and a part 802. The part 801 is mainly configured to transmit and receive an RF signal and perform conversion between the RF signal and the baseband signal. Part 802 is mainly configured to perform baseband processing, control network device 80, and the like. Part 801 may be commonly referred to as a transceiver unit, a transceiver machine, a transceiver circuit, a transceiver, or the like. Part 802 is typically the control center of the network device 80 and may be commonly referred to as a processing unit, control unit, processor, controller, or the like. Part 802 is configured to control the network device 80 to perform the steps performed by the access node/transmission receiving point that is associated with the measurement function object on the access side or used as the object of the measurement function on the access side in the above respective embodiments. See the previous description of the relevant parts for details.

The transceiver unit in part 801 may also be referred to as a transceiver machine, a transceiver, or the like. The transceiver unit includes an antenna and an RF unit. The radio frequency unit is generally configured to perform radio frequency processing. Alternatively, a component that is in part 801 that is configured to implement a receive function may be considered a receive unit, and a component that is capable of implementing a transmit function may be considered a transmit unit. In other words, part 801 includes a receiving block and a transmitting block. The receiving unit may also be referred to as a receiving engine, a receiver, a receiver circuit, or the like. The transmission unit may be referred to as a transmission machine, a transmitter, a transmission circuit, or the like.

Part 802 may include one or more boards. Each board may include one or more processors and one or more memories, and the processor is configured to read and execute a program in the memory to implement the baseband processing function and control the network device 80. If there are multiple boards, the boards can be connected between itself to improve processing capabilities. In an exemplary implementation, multiple boards may share one or more processors, or multiple boards may share one or more memory, or multiple boards may share one or more processors at the same time. The memory and processor may be combined together or may be located independently. In some embodiments, portion 801 and portion 802 may be combined together or may be located independently. Additionally, all functions of part 802 can be integrated into one chip for implementation. Alternatively, some functions may be integrated into one chip for implementation, and some other functions may be integrated into one or more other chips for implementation. This is not limited in the present disclosure.

For example, in an implementation, the transceiver unit may be configured to perform receive and/or transmit operations of the access node in steps S101, S102, and/or S104 in FIG. 2 and/or other steps in this disclosure. The processing unit may be configured to perform operations such as determining indication information related to interference and determining a beam alignment result in the embodiment related to FIG. 2 and/or other steps in this disclosure.

For example, in an implementation, the transceiver unit may be configured to perform receive and/or transmit operations of the access node in steps S202 and/or S204 in FIG. 4 and/or other steps in this disclosure. The processing unit may be configured to perform operations such as determining a selection criterion and determining a beam alignment result in the embodiment related to FIG. 4 and/or other steps in this disclosure.

For example, in an implementation, the transceiver unit may be configured to perform receive and/or transmit operations of the access node in steps S302 and/or S304 in FIG. 5 and/or other steps in this disclosure. The processing unit may be configured to perform operations such as determining a rank condition (Rank) and determining a beam alignment result in the embodiment related to FIG. 5 and/or other steps in this disclosure.

For example, in an implementation, the transceiver unit may be configured to perform receive and/or transmit operations of the access node in steps S401, S403, and/or S405 in FIG. 6 and/or other steps in this disclosure. The processing unit may be configured to execute S402 in FIG. 6 and/or other steps in this disclosure.

The above provided device on the side of the terminal device may be a terminal device, or may be a chip or a functional module in the terminal device, and may implement the above method by software or hardware, or hardware executing the corresponding software.

A particular implementation of the above provided network device may be an access point device. For example, the device may be an access point device, or may be a chip or functional module in an access point device. The above method can be implemented in software, hardware or hardware by executing the corresponding software.

For an explanation and beneficial effects of the respective content of any terminal device, network device, and respective device presented above, refer to the respective method embodiments presented above. The details are again not described here.

The present disclosure further provides a beam alignment system including a UE (or a UE-side device implementing the aforementioned UE function) and an access node (or an access-side device or a transmission receiving point implementing the aforementioned access node function) in the above implementations.

The present disclosure further provides a computer program product. When the computer program product is used on a computer, the computer may perform any of the methods described above.

The present disclosure further provides a chip. The chip stores the instruction, and when the instruction is executed on the above devices, the device is configured to perform the above provided methods.

The present disclosure further provides a computer storage medium. A computer program (instruction) is stored on a computer storage medium. When the program (instruction) is run on the computer, the computer is enabled to execute the method in accordance with any of the above aspects.

All or some of the above embodiments may be implemented in software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, the embodiments may be implemented or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When computer program instructions are downloaded and executed on a computer, procedures or functions according to embodiments of the present invention are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored on a computer-readable storage medium or may be transferred from a computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center over a wired connection (such as coaxial cable, optical fiber, or digital subscriber line). line, DSL)) or wirelessly (e.g. infrared, radio or microwave). A computer-readable storage medium can be any usable medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more usable media. The media used may be magnetic media (eg, floppy disk, hard disk, or magnetic media).

Although the present disclosure has been described with reference to the embodiments, in the course of carrying out the present invention, one skilled in the art can understand and implement another variation of the disclosed embodiments by viewing the accompanying drawings, the disclosed content, and the accompanying claims. In the claims, "comprising" does not exclude another component or another step, and "a" or "one" does not exclude the meaning of a plurality. One processor/controller or other unit may implement several of the functions listed in the claims. Some features are indicated in dependent claims that differ from each other, but this does not mean that these features cannot be combined to obtain a better effect.

Although the present disclosure has been described with reference to specific features and their embodiments, of course, various modifications and combinations can be made to them without going beyond the scope of the present invention. Accordingly, the description and the accompanying drawings are merely exemplary of the description of the present invention as defined by the appended claims, and are construed as any or all modifications, variations, combinations or equivalents that fall within the scope of the present invention. It is clear that the person skilled in the art can make various modifications and changes to the present disclosure, without going beyond the essence and scope of the present invention. The present disclosure is intended to cover these modifications and variations of the present invention, provided that they fall within the scope of protection defined by the following claims and their equivalent technologies.

Claims (73)

1. A beam tuning method, comprising the steps of: receiving indication information related to interference transmitted by the network device, wherein the indication information related to interference indicates the use of a reception beam for receiving a downlink signal that does not interfere with the terminal device and a downlink signal that causes interference with the terminal devices; receiving from the network device one or more downlink signals that do not cause interference and one or more downlink signals that cause interference through respective reception paths, respectively indicated by indication information related to interference; and transmitting to the network device information related to a beam selected from a plurality of transmission beams transmitted by the network device, wherein the selected path is a path selected based on indication information relating to interference and a measurement result obtained by measuring one or more downlink signals that do not cause interference and one or more downlink signals that cause interference. 2. The method of claim 1, wherein the interference-related indication information is further used to indicate a transmission resource for the terminal interfering downlink signal and the terminal interfering downlink signal transmitted by a beam. transmissions from a plurality of transmission paths causing interference to the terminal. 3. The method of claim 2, wherein the non-interfering downlink signal is transmitted via a transmission path of a plurality of transmission paths that do not cause interference to the terminal. 4. The method of claim 3, wherein the interference-related indication information is further used to indicate separate reception by all reception paths to receive a downlink signal that does not cause interference, a downlink signal transmitted by a transmission beam causing interference; wherein the step of receiving one or more downlink signals that do not cause interference and one or more downlink signals that cause interference by means of respective reception paths, respectively indicated by the indication information related to interference, comprises a sub-step of: separately receiving by all reception paths to receive non-interfering downlink signals of the downlink signal transmitted by the interfering transmission path. 5. The method of claim 1, wherein the interference-related indication information further indicates at least one of: a transmission resource for the interfering downlink signal and a reception path corresponding to the transmission resource. 6. The method according to any one of paragraphs. 1-5, in which the information related to the selected beam contains a resource index for the downlink signal transmitted by the selected beam and interference level information corresponding to the resource index, and the interference level information is obtained by measuring the downlink signal causing interference. 7. The method of claim 6, wherein the interference level information comprises: a ratio of the received power of the non-interfering downlink signal received by the reception beam to the reception power of the downlink interfering signal received by the reception beam; or signal-to-interference-plus-noise ratio (SINR) information. 8. A beam tuning method, comprising the steps of: transmitting indication information related to interference to the terminal device, wherein the indication information related to interference indicates the use of a reception beam for receiving a downlink signal that does not cause interference to the terminal device and a downlink signal that causes interference to the terminal device. devices; transmitting to the terminal one or more downlink signals that do not cause interference and one or more downlink signals that cause interference through a plurality of transmission paths, respectively indicated by indication information related to interference; and receive information related to a beam selected from a plurality of transmission beams, while the selected path is the path selected by the terminal based on the interference-related indication information and the measurement result obtained by measuring one or more non-interfering downlink signals and one or more interfering downlink signals. 9. The method of claim 8, wherein the interference-related indication information is further used to indicate a transmission resource for the terminal interfering downlink signal and the terminal interfering downlink signal transmitted by the beam. transmissions from a plurality of transmission paths causing interference to the terminal. 10. The method of claim 9, wherein the non-interfering downlink signal is transmitted via a transmission path of a plurality of non-interfering transmission paths to the terminal. 11. The method of claim 10, wherein the interference related information is further used to indicate separate reception by all reception paths to receive non-interfering downlink signals of the downlink signals transmitted by the interfering transmission path. 12. The method of claim 8, wherein the interference-related indication information further indicates at least one of: a transmission resource of the interfering downlink signal and a reception path corresponding to the transmission resource. 13. The method according to any one of paragraphs. 8-12, in which the indication information related to the selected beam contains: a resource index for the downlink signal transmitted by the selected beam, and interference level information corresponding to the resource index, and the interference level information is obtained by measuring the downlink signal. communication causing interference. 14. The method of claim 13, wherein the interference level information comprises: a ratio of the received power of the non-interfering downlink signal received by the reception beam to the reception power of the interfering downlink signal received by the reception beam; or signal-to-interference-plus-noise ratio (SINR) information. 15. Beam adjuster, comprising: a transceiver unit configured to receive interference-related indication information transmitted by the network device, wherein the interference-related indication information indicates the use of a reception beam for receiving a downlink signal that does not cause interference to the terminal device and a downlink signal , which causes interference for the terminal device, while the transceiver unit is further configured to: receive from the network device one or more non-interfering downlink signals and one or more interfering downlink signals via respective reception paths, respectively indicated by the interference-related indication information; and transmitting to the network device information related to a beam selected from a plurality of transmission beams transmitted by the network device, wherein the selected path is a path selected based on indication information relating to interference and a measurement result obtained by measuring one or more downlink signals that do not cause interference and one or more downlink signals that cause interference. 16. The apparatus of claim 15, wherein the interference-related indication information is further used to indicate a transmission resource for the terminal interfering downlink signal and the terminal interfering downlink signal transmitted by the beam. transmission, from a plurality of transmission paths causing interference to the terminal. 17. The apparatus of claim 16, wherein the non-interfering downlink signal is transmitted via a transmission path of a plurality of non-interfering transmission paths to the terminal. 18. The apparatus of claim 17, wherein the interference-related indication information is further used to indicate separate reception by all reception paths to receive non-interfering downlink signals of the downlink signals transmitted by the interference-causing reception path. ; wherein the reception of one or more downlink signals that do not cause interference and one or more downlink signals that cause interference by means of respective reception paths, respectively indicated by the indication information relating to interference, comprises: separate reception by all said reception paths for receiving a non-interfering downlink signal, a downlink signal transmitted via an interfering transmission beam. 19. The apparatus of claim 15, wherein the interference-related indication information further indicates at least one of: a transmission resource of the interfering downlink signal and a reception path corresponding to the transmission resource. 20. The device according to any one of paragraphs. 15-19, in which the information related to the selected beam contains a resource index for the downlink signal transmitted by the selected beam and interference level information corresponding to the resource index, and the interference level information is obtained by measuring the downlink signal causing interference. 21. The apparatus of claim 20, wherein the interference level information comprises: a ratio of the received power of the non-interfering downlink signal received by the reception beam to the reception power of the downlink interfering signal received by the reception beam; or signal-to-interference-plus-noise ratio (SINR) information. 22. A beam adjuster, comprising: a transceiver unit configured to transmit interference-related indication information to a terminal device, wherein the interference-related indication information indicates the use of a reception beam for receiving a downlink signal that does not cause interference to the terminal device and a downlink signal , which causes interference for the terminal device, while the transceiver unit is further configured to: transmit to the terminal one or more non-interfering downlink signals and one or more interfering downlink signals via respective receive paths, respectively indicated by the interference-related indication information; and receiving information related to a beam selected from a plurality of transmission beams, wherein the selected path is the path selected by the terminal based on the interference-related indication information and the measurement result obtained by measuring one or more downlink signals that do not cause interference and one or more downlink signals that cause interference. 23. The apparatus of claim 22, wherein the interference-related indication information is further used to indicate a transmission resource for a downlink signal that interferes with the terminal and a downlink signal that interferes with the terminal transmitted by a beam. transmissions from a plurality of transmission paths causing interference to the terminal. 24. The apparatus of claim 23, wherein the non-interfering downlink signal is transmitted via a transmission path of a plurality of non-interfering transmission paths to the terminal. 25. The apparatus of claim 24, wherein the interference-related indication information is further used to indicate separate reception by the reception beam for receiving non-interfering downlink signals of the downlink signal transmitted by the interfering beam. 26. The apparatus of claim 22, wherein the interference-related indication information further indicates at least one of: a transmission resource for the interfering downlink signal and a reception path corresponding to the transmission resource. 27. The device according to any one of paragraphs. 22-26, in which the information related to the selected beam contains: a resource index for the downlink signal transmitted by the selected beam and interference level information corresponding to the resource index, the interference level information being obtained by measuring the downlink signal, causing interference. 28. The apparatus of claim 27, wherein the interference level information comprises: a ratio of the received power of the non-interfering downlink signal received by the reception beam to the reception power of the downlink interfering signal received by the reception beam; or signal-to-interference-plus-noise ratio (SINR) information. 29. Beam adjuster, comprising: a transceiver configured to receive indication information related to interference transmitted by a network device, wherein the indication information related to interference indicates the use of a reception beam for receiving a downlink signal that does not cause interference to the terminal device and the downlink signal, which causes interference to the terminal device, while the transceiver is further configured to: receive from the network device one or more downlink signals that do not cause interference, and one or more downlink signals that cause interference, through respective reception paths, respectively indicated by indication information related to interference; and transmitting to the network device information related to a beam selected from a plurality of transmission beams transmitted by the network device, wherein the selected path is a path selected based on indication information relating to interference and a measurement result obtained by measuring an interfering downlink signal. 30. The apparatus of claim 29, wherein the interference-related indication information is further used to indicate a transmission resource for the downlink interfering signal for the terminal and the downlink interfering signal transmitted by transmission paths from the plurality of transmission paths, transmission paths causing interference to the terminal. 31. The apparatus of claim 30, wherein the non-interfering downlink signal is transmitted via a transmission path of a plurality of non-interfering transmission paths to the terminal. 32. The apparatus of claim 31, wherein the interference-related indication information is further used to indicate separate reception by all reception paths to receive non-interfering downlink signals of the downlink signals transmitted by the interference-causing transmission beam. ; wherein the reception of one or more downlink signals that do not cause interference and one or more downlink signals that cause interference by means of respective reception paths, as appropriately indicated by the indication information relating to interference, comprises: separate reception by all reception paths for receiving non-interfering downlink signals, a downlink signal transmitted via an interfering transmission beam. 33. The apparatus of claim 29, wherein the interference-related indication information further indicates at least one of: a transmission resource for the interfering downlink signal and a reception path corresponding to the transmission resource. 34. The device according to any one of paragraphs. 29-33, in which the information related to the selected beam contains a resource index for the downlink signal transmitted by the selected beam and interference level information corresponding to the resource index, the interference level information being obtained by measuring the downlink signal, causing interference. 35. The apparatus of claim 34, wherein the interference level information comprises: a ratio of the received power of the non-interfering downlink signal received by the reception beam to the reception power of the downlink interfering signal received by the reception beam; or signal-to-interference-plus-noise ratio (SINR) information. 36. Beam adjuster, comprising: a transceiver configured to transmit interference-related indication information to the terminal device, wherein the interference-related indication information indicates the use of a reception beam for receiving a downlink signal that does not cause interference to the terminal device and a downlink signal, which causes interference to the terminal device, while the transceiver is further configured to: transmit to the terminal one or more downlink signals that do not cause interference, and one or more downlink signals that cause interference, via respective reception paths, respectively indicated by indication information related to interference; and receiving information related to a beam selected from a plurality of transmission beams, wherein the selected path is the path selected by the terminal based on the indication information related to interference and the measurement result obtained by measuring one or more non-interfering downlink signals and one or more interfering downlink signals. 37. The apparatus of claim 36, wherein the interference-related indication information is further used to indicate a transmission resource for the downlink interfering signal to the terminal and the downlink interfering signal transmitted by transmission paths from the plurality of transmission paths, transmission paths causing interference to the terminal. 38. The apparatus of claim 37, wherein the non-interfering downlink signal is transmitted via a transmission path of a plurality of non-interfering transmission paths to the terminal. 39. The apparatus of claim 38, wherein the interference-related information is further used to indicate separate reception by all reception paths to receive the non-interfering downlink signal of the downlink signal transmitted by the interfering transmission path. 40. The apparatus of claim 36, wherein the interference-related indication information further indicates at least one of: a transmission resource for the interfering downlink signal and a reception path corresponding to the transmission resource. 41. The device according to any one of paragraphs. 36-40, in which the information related to the selected beam contains a resource index for the downlink signal transmitted by the selected beam, and interference level information corresponding to the resource index, and the interference level information is obtained by measuring the downlink signal, causing interference. 42. The apparatus of claim 41, wherein the interference level information comprises: a ratio of the received power of the non-interfering downlink signal received by the reception beam to the reception power of the downlink interfering signal received by the reception beam; or signal-to-interference-plus-noise ratio (SINR) information. 43. Beam adjustment system, comprising: device according to any one of paragraphs. 15-21 and the device according to any one of paragraphs. 22-28; or device according to any one of paragraphs. 29-35 and the device according to any one of paragraphs. 36-42. 44. A computer-readable storage medium that stores a computer program that causes, when executed by a computer, the execution of the method according to any one of paragraphs. 1-14. 45. A processing device comprising a memory and a processor, wherein the memory stores a computer program executable by the processor and causing, when executed by the processor, the device to execute the method according to any one of paragraphs. 1-14. 46. The apparatus of claim 45, wherein the memory is independent of or integrated with the processor. 47. A processing device containing a processor, and the processor is configured to: connect to the memory, read instructions in the memory to implement the device, in accordance with the instructions, the method according to any one of paragraphs. 1-14. 48. A processing device, characterized in that it is configured to implement the method according to any one of paragraphs. 1-14.

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