CN111818660B - Method for updating beam information, terminal equipment and network equipment - Google Patents

Method for updating beam information, terminal equipment and network equipment Download PDF

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CN111818660B
CN111818660B CN201910718385.8A CN201910718385A CN111818660B CN 111818660 B CN111818660 B CN 111818660B CN 201910718385 A CN201910718385 A CN 201910718385A CN 111818660 B CN111818660 B CN 111818660B
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information
target
srs
csi
measured
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CN111818660A (en
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杨宇
孙鹏
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • H04B17/327Received signal code power [RSCP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/336Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/345Interference values
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0632Channel quality parameters, e.g. channel quality indicator [CQI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/046Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method for updating beam information, terminal equipment and network equipment, wherein the method comprises the following steps: sending uplink information under the condition that parameters of the terminal equipment related to beam information updating meet preset conditions, wherein the uplink information is used for beam measurement; the beam information is updated based on the results of the beam measurements. According to the embodiment of the invention, the terminal equipment can be triggered to perform beam measurement in time and actively without the control of network equipment, so that the receiving and transmitting beams of the network side and the terminal side can be aligned in time, the communication quality is ensured, the overhead and time delay of beam measurement can be reduced, and the beam updating and data transmission are accelerated.

Description

Method for updating beam information, terminal equipment and network equipment
Technical Field
The present invention relates to the field of communications, and in particular, to a method for updating beam information, a terminal device, and a network device.
Background
With the increase of data volume demand of terminal devices, in order to meet the increasing demand of communication performance, a trend is going to combine large-scale antennas with high-frequency band communication, where the high-frequency band is a frequency band above 6 GHz.
In particular, the high frequency band has richer idle frequency resources, which can provide greater throughput for data transmission. The wavelength of the high-frequency signal is short, compared with the low-frequency band, more antenna array elements can be arranged on a panel with the same size, the beam forming technology is favorably utilized to form a beam with stronger directivity and narrower lobe, and higher practical prospect is provided for the application of the digital-analog hybrid beam forming technology.
For high-frequency communication, as the working frequency band increases, the lobe of the analog beam is narrower, and the number of beams increases, so that the time delay of measurement and the resource overhead of Reference Signals (RS) need to be increased when beam training is performed. However, a narrower beam is more sensitive to movement or rotation of the terminal, and a smaller position change may cause misalignment between the transmit and receive beams of the network and the terminal, which may cause a reduction in communication quality, and thus increase the frequency of beam training.
The conventional beam training is controlled by a network side, and includes periodic beam training and aperiodic beam training, where the aperiodic beam training is to dynamically trigger the network side to measure and optimize a small-range beam, that is, the terminal side is not allowed to autonomously initiate beam training. Moreover, in the existing beam training, it is necessary to first use a Channel State Information Reference Signal (CSI-RS) for downlink beam measurement or a Sounding Reference Signal (SRS) for uplink beam measurement, and then the network side indicates the beam of each downlink Channel or uplink Channel to the terminal side, which is time-consuming and not beneficial to realizing rapid beam adjustment and data transmission.
Disclosure of Invention
One of the technical problems solved by the embodiments of the present invention is that the time consumption of the beam information updating process is long, which is not favorable for realizing rapid beam adjustment and data transmission.
In a first aspect, an embodiment of the present invention provides a method for updating beam information, where the method is applied to a terminal device, and the method includes:
sending uplink information under the condition that parameters of the terminal equipment related to beam information updating meet preset conditions, wherein the uplink information is used for beam measurement;
the beam information is updated based on the results of the beam measurements.
In a second aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes:
a sending module, configured to send uplink information when a parameter of the terminal device related to beam information update meets a preset condition, where the uplink information is used for performing beam measurement;
and the updating module is used for updating the beam information according to the result of the beam measurement.
In a third aspect, an embodiment of the present invention provides a terminal device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the first aspect.
In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present invention provides a method for updating beam information, which is applied to a network device, and the method includes:
receiving uplink information, wherein the uplink information is sent by a terminal device under the condition that parameters related to beam information updating of the terminal device meet preset conditions, and the uplink information is used for beam measurement;
the beam information is updated based on the results of the beam measurements.
In a sixth aspect, an embodiment of the present invention provides a network device, where the network device includes:
a receiving module, configured to receive uplink information, where the uplink information is sent by a terminal device when a parameter of the terminal device related to beam information update meets a preset condition, and the uplink information is used for performing beam measurement;
and the updating module is used for updating the beam information according to the result of the beam measurement.
In a seventh aspect, an embodiment of the present invention provides a network device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the fifth aspect.
In an eighth aspect, the embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the method according to the fifth aspect.
In the embodiment of the present invention, when the parameter related to the beam information update determined by the terminal device satisfies the corresponding preset condition, the terminal device may actively trigger the transmission of the uplink information for performing the beam measurement, and further may complete the update of the beam information according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to carry out beam measurement in time and actively without the control of the network equipment, so that the receiving and sending beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating a method for updating beam information according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second method for updating beam information according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal device in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network device in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second terminal device in the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second network device in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Currently, mobile communication systems such as Long Term Evolution (LTE), long Term Evolution-enhanced (LTE-a), and fifth generation (5G) all introduce corresponding Multiple-Input Multiple-Output (MIMO) technology and Orthogonal Frequency Division Multiplexing (OFDM) technology to improve peak rate and system spectrum utilization by using spatial degrees of freedom obtained by a multi-antenna system based on the MIMO technology.
With the continuous expansion of MIMO technology dimension, in LTE Rel-8 version, MIMO transmission of 4 layers at most can be supported, in Multi-User MIMO (MU-MIMO) transmission in Rel-9 version, 4 downlink data layers at most can be supported, and in Rel-10 version, the transmission capability of Single-User MIMO (SU-MIMO) is expanded to 8 data layers at most. Further, the MIMO technology is being pushed toward three-dimensionality and large-scale. Currently, the third generation (3G) mobile communication system has completed the research of three-dimensional channel modeling, and research and standardization of Full-dimensional multiple input-output enhancement (enfs on Full-Dimension MIMO for LTE, eFD-MIMO) and NR (New Radio, new air interface) MIMO is being carried out. It is expected that in future 5G mobile communication systems, a larger scale, more antenna port MIMO technology will be introduced.
In addition, the large-scale antenna technology (Massive MIMO) uses a large-scale antenna array, which can greatly improve the system band utilization efficiency and support a larger number of access users, and thus, the large-scale antenna technology is one of the most potential physical layer technologies in the next-generation mobile communication system. In large-scale antenna technology, if a full Digital array is adopted, maximum spatial resolution and optimal MU-MIMO performance can be achieved, but such a structure requires a large number of Analog-to-Digital converter (AD)/Digital-to-Analog converter (DA) conversion devices and a large number of complete rf-baseband processing channels, which is a huge burden in terms of both equipment cost and baseband processing complexity.
In order to avoid the implementation cost and the device complexity, a digital-analog hybrid beamforming technology is applied, that is, on the basis of the conventional digital domain beamforming, a first-stage beamforming is added to a radio frequency signal close to the front end of an antenna system. Analog forming enables a sending signal to be roughly matched with a channel in a simpler mode. The dimensionality of equivalent channels formed after analog shaping is smaller than the actual number of antennas, so that the AD/DA conversion devices, the number of digital channels and the corresponding baseband processing complexity required by the analog shaping can be greatly reduced. The residual interference of the analog forming part can be processed again in the digital domain forming part, thereby ensuring the quality of MU-MIMO transmission. Compared with full digital forming, digital-analog hybrid beam forming is a compromise scheme of performance and complexity, and has a high practical prospect in a system with a high frequency band and a large bandwidth or a large number of antennas.
For the high frequency band, in the next generation communication system after the fourth generation (4G) mobile communication system, the working frequency band supported by the communication system is increased to the high frequency band above 6GHz, for example, 100GHz, and the high frequency band has rich idle frequency resources, which can provide greater throughput for data transmission. At present, 3GPP has completed high-frequency channel modeling work, and the wavelength of a high-frequency band signal is short, and compared with a low-frequency band, more antenna elements can be arranged on an antenna set with the same size, so that a beam with stronger directivity and narrower lobes can be formed by using a beam forming technology. Therefore, a combination of a large-scale antenna and high-band communication is becoming a trend.
However, as the operating frequency band increases, for example, the frequency band above 50GHz, the lobe of the analog beam will be narrower, the number of beams will increase, and then the time delay of measurement and the resource overhead of the reference signal RS need to be increased when performing beam training. However, a narrower beam is more sensitive to movement or rotation of the terminal device, and a smaller position change may cause misalignment between the receiving and transmitting beams of the network device and the terminal device, which may cause degradation of communication quality, and thus increase the frequency of beam training.
The existing beam training is controlled by the network device, and includes periodic beam training and aperiodic beam training, where the aperiodic beam training dynamically triggers the network device to measure and optimize a small-range beam, that is, the terminal device is not allowed to initiate the beam training autonomously. Moreover, in the existing beam training, it is necessary to perform downlink beam measurement by using a CSI-RS or uplink beam measurement by using an SRS, and then the network device indicates the beam of each downlink channel or uplink channel to the terminal device, which is time-consuming and not beneficial to implementing fast beam adjustment and data transmission.
Therefore, a solution for updating beam information is needed to reduce the time consumption of updating beam information, achieve fast beam adjustment and data transmission, and further improve the communication quality.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a method for updating beam information, where the method is executed by a terminal device, and the method includes the following steps:
step 101: and sending uplink information under the condition that parameters related to the beam information updating of the terminal equipment meet preset conditions, wherein the uplink information is used for carrying out beam measurement.
Step 103: the beam information is updated based on the results of the beam measurements.
In the embodiment of the present invention, when the parameter related to the beam information update determined by the terminal device satisfies the corresponding preset condition, the terminal device may actively trigger the transmission of the uplink information for performing the beam measurement, and further may complete the update of the beam information according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to perform beam measurement in time and actively without the control of the network equipment, so that the receiving and transmitting beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
Furthermore, for small data packet services, such as data transmission services in network games, beam measurement needs to be performed before transmission, and by the method of the embodiment of the present invention, the difference between the time length of beam measurement and the time length required for transmitting small data packets can be shortened, which is beneficial to realizing rapid data transmission.
Optionally, the uplink information is used to perform uplink beam measurement or used to perform downlink beam measurement. A beam may be referred to as a Spatial Filter (Spatial Filter), a Spatial Domain Transmission Filter (Spatial Domain Transmission Filter), and the like. The beam information may be referred to as Transmission Configuration Indication (TCI) state information, quasi Co-Location (QCL) information, spatial relationship (Spatial relationship) information, or the like. The beam information may include a beam number, a reference signal resource index corresponding to the beam, or quality information of the beam, etc.
Optionally, in the method for updating beam information according to the embodiment of the present invention, whether a parameter related to updating beam information satisfies a corresponding preset condition may be determined through one of the following specific implementations.
In a specific embodiment, in the case that the parameter is a location state change value of the terminal device, if the location state change value reaches a first set value, it is determined that the parameter satisfies a preset condition.
It can be understood that when the position state of the terminal device changes and the position state changes to a certain extent, it can be determined that the parameters related to the updating of the beam information satisfy the corresponding preset conditions, and then the terminal device can trigger the timely sending of the uplink information to perform the corresponding beam measurement, thereby quickly solving the problem that the receiving and sending beams cannot be aligned due to the change of the position state of the terminal device.
Wherein, the change of the position state of the terminal device at least comprises: terminal equipment movement, terminal equipment rotation, terminal equipment shielding and the like; specifically, the change of the position state of the terminal device can be sensed through corresponding sensors and other devices of the terminal device.
In another embodiment, in the case that the parameter is a measurement result of the terminal device on the downlink beam measurement indicator, if the measurement result of the downlink beam measurement indicator reaches the second set value, it is determined that the parameter meets the preset condition.
The downlink beam measurement index includes at least one of Reference Signal Received Power (RSRP), reference Signal Received Quality (RSRQ), and Signal-to-Noise and Interference Ratio (SINR).
It can be understood that when the measurement result of the downlink beam measurement index determined by the terminal device reaches the corresponding second set value, that is, it can be determined that the parameter related to the beam information update satisfies the corresponding preset condition, the terminal device can trigger the timely transmission of the uplink information to perform the corresponding beam measurement, thereby quickly solving the problem that the receiving and transmitting beams cannot be aligned due to the fact that the measurement result of the downlink beam measurement index of the terminal device reaches a certain condition.
The correspondence between the measurement result of the downlink beam measurement indicator of the terminal device, the second setting value, and the preset condition may include one of the following:
determining that the measurement result of the downlink beam measurement index meets a preset condition under the condition that the measurement result of the downlink beam measurement index is smaller than a first threshold value (namely, a second set value);
determining that the measurement result of the downlink beam measurement index meets a preset condition under the condition that the average value of the multiple measurement results of the downlink beam measurement index is smaller than a second threshold value (namely a second set value);
determining that the measurement result of the downlink beam measurement index meets a preset condition when the measurement results of the downlink beam measurement index are all smaller than a third threshold (namely, a second set value) in a preset time period;
and determining that the measurement result of the downlink beam measurement index meets the preset condition under the condition that the statistical frequency that the measurement result of the downlink beam measurement index is continuously smaller than the fourth threshold reaches a fifth threshold (namely, a second set value).
It should be noted that the specific values of the set value and the threshold value may be set according to actual situations. In addition, the parameters related to the beam information update of the terminal device may be other parameters that can be used to measure whether the transmission of the uplink information can be initiated or not and trigger the beam information update process, in addition to the position state change value of the terminal device and the measurement result of the terminal device on the downlink beam measurement index.
Optionally, in the method for updating beam information according to the embodiment of the present invention, the scheme for sending uplink information in step 101 may specifically be implemented as:
and sending the uplink information on the periodic resources pre-configured by the network equipment.
Optionally, in the method for updating beam information in the embodiment of the present invention, the uplink information may include different contents, so as to perform corresponding beam measurement based on the different contents.
Example one
In this embodiment, the uplink information may include beam measurement indication information, where the beam measurement indication information is used to indicate beam measurement, so as to implement beam measurement actively triggered and controlled by the terminal device.
Optionally, the periodic resource used for the Uplink information, i.e., the beam measurement indication information, may include a Physical Uplink Control Channel (PUCCH) resource or a Physical Uplink Shared Channel (PUSCH) resource.
Further optionally, the beam measurement indication information sent through the periodic resource may include a predefined event or trigger command, and specifically may be a predefined new event or trigger command.
Further optionally, when the periodic resource is a PUCCH resource, the scheme for transmitting uplink information in step 101 may be implemented as:
and carrying the beam measurement indication Information in Uplink Control Information (UCI) for transmission.
Optionally, the beam measurement indication information may be sent to the network device by adding a corresponding bit in the UCI.
Further optionally, in the method for updating beam information according to the embodiment of the present invention, after the step 101 and before the step 103, one of the following two steps may be further included:
step A: receiving a Channel State Information Reference Signal (CSI-RS) to be measured sent by the network device, to perform downlink beam measurement, specifically, sending the CSI-RS to be measured after the network device receives the beam measurement indication Information, and further updating beam Information according to the result of beam measurement.
It can be understood that, in this specific embodiment, the network device is informed that the terminal device needs to perform downlink beam measurement at this time by sending the beam measurement indication information to the network device, that is, the network device sends the CSI-RS to be measured to the terminal device after receiving the beam measurement indication information, so as to start downlink beam measurement and update beam information.
Optionally, the step of receiving the CSI-RS to be measured sent by the network device may be specifically performed as:
receiving a CSI-RS to be measured which is repeatedly sent by the network equipment by using the same QCL information; or
And receiving the CSI-RS to be measured, which is sent by the network equipment by adopting different QCL information.
Optionally, the CSI-RS resource corresponding to the CSI-RS to be measured includes at least one of the following:
and the network equipment pre-configures the resources before receiving the uplink information.
And the network equipment receives the uplink information and then configures the resources.
Specifically, the network device may configure the CSI-RS Resource through Radio Resource Control (RRC) signaling, where the CSI-RS Resource may be a periodic Resource.
And the network equipment uses the resources activated by the activation signaling before receiving the uplink information.
And after receiving the uplink information, the network equipment uses the resources activated by the activation signaling.
Specifically, after configuring the semi-persistent CSI-RS resource, the network device may activate a CSI-RS resource for transmitting the CSI-RS to be measured through a Media Access Control (MAC) Control Element (CE) activation signaling.
After receiving the uplink information, the network device uses the resources indicated by the downlink control information DCI.
Specifically, the network device may indicate, using DCI, the CSI-RS resource for transmitting the CSI-RS to be measured for the configured aperiodic CSI-RS resource.
It can be understood that by providing CSI-RS resources for sending CSI-RS to be measured, smooth downlink beam measurement can be ensured; the method comprises the steps of configuring CSI-RS resources in advance, saving time, and reducing time delay and overhead, wherein the preconfigured CSI-RS resources can be directly used for sending the CSI-RS to be measured on one hand, and can be used for sending the CSI-RS to be measured only after activation of an activation signaling or DCI (downlink control information) indication is used on the other hand.
Optionally, the configuration parameter corresponding to the CSI-RS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value.
It can be understood that, by making the parameter value of at least one of the characteristic frequency-domain density information and the number of times of repeated transmission in the configuration parameter corresponding to the CSI-RS to be measured larger than the corresponding set value, preferably, the set value may be selected as a parameter value determined in the existing standard, so as to increase the accuracy of measurement.
Optionally, in the method for updating beam information in the embodiment of the present invention, after performing downlink beam measurement based on the CSI-RS to be measured, the step 103 of updating the beam information according to the result of the beam measurement may be further performed, and specifically, the step may be performed as:
determining first beam information according to the result of the beam measurement;
and updating the second beam information according to the first beam information.
It can be understood that after triggering the corresponding beam measurement according to the uplink information, a preferred first beam information may be determined as the reference beam information, and then the beam information, i.e., the second beam information, of at least one of the target channel and the target reference signal is updated according to the preferred first beam information, i.e., the reference beam information.
Optionally, the step of determining the first beam information according to the result of the beam measurement may be specifically implemented as follows:
and determining first beam information corresponding to a target CSI-RS in the CSI-RS to be measured based on a result obtained by downlink beam measurement of the received CSI-RS to be measured.
Optionally, the target CSI-RS in the CSI-RS to be measured corresponds to the optimal receiving beam determined by the terminal device according to the measurement result, and after the optimal receiving beam is determined, the optimal transmitting beam aligned with the target CSI-RS can be determined.
Optionally, when the CSI-RS to be measured uses different quasi co-located QCL information for sending, the method further includes:
and feeding back a target CSI-RS Resource Indicator (CRI) to the network equipment, wherein the target CRI corresponds to the target CSI-RS.
It can be understood that, for the case that the network device polls to transmit the CSI-RS to be measured on different beams, after determining the optimal transmission beam, the network device may be informed through the target CSI-RS resource indication CRI.
And B, step B: sending a Sounding Reference Signal (SRS) to be measured to the network device for the network device to perform uplink beam measurement, specifically, the SRS to be measured is sent by the terminal device after the network device receives the beam measurement indication information, and further, updating beam information according to a beam measurement result.
It can be understood that, in this specific embodiment, the network device is instructed to perform uplink beam measurement by sending the beam measurement indication information to the network device, that is, the network device receives the SRS to be measured sent by the terminal device after receiving the beam measurement indication information, so as to start uplink beam measurement, and update the beam information.
Example two
In this embodiment, the uplink information may include an SRS to be measured, that is, when a parameter related to updating of beam information of the terminal device satisfies a corresponding preset condition, the uplink information may directly trigger sending of the SRS to be measured, so that the network device performs uplink beam measurement based on the SRS to be measured.
Optionally, in the two embodiments, that is, in a scheme of sending the SRS to be measured after the beam measurement indication information is sent and a scheme of directly sending the SRS to be measured when a parameter related to beam information update of the terminal device satisfies a preset condition, the scheme of sending the SRS to be measured may specifically be implemented as follows:
repeatedly sending the SRS to be measured by adopting the same spatial relation information; or
And sending the SRS to be measured by adopting different spatial relation information.
Optionally, in the two embodiments, the SRS resource corresponding to the SRS to be measured includes at least one of:
a resource shared among a plurality of terminal devices.
Specifically, the SRS to be measured is transmitted by sharing the SRS resource with other terminal devices, so that resources can be saved.
And the network equipment pre-configures the resources before receiving the uplink information.
And the network equipment receives the uplink information and then configures the resources.
Specifically, the network device may configure the SRS resource through RRC signaling, where the SRS resource may be a periodic resource.
And the network equipment uses the resources activated by the activation signaling before receiving the uplink information.
And after receiving the uplink information, the network equipment uses the resources activated by the activation signaling.
Specifically, after configuring the semi-persistent SRS resource, the network device may activate, through the MAC CE activation signaling, the SRS resource for transmitting the SRS to be measured.
After receiving the uplink information, the network device uses the resources indicated by the downlink control information DCI.
Specifically, the network device may indicate, using DCI, SRS resources for transmitting SRS to be measured for the configured aperiodic SRS resources.
It can be understood that by providing SRS resources for sending SRS to be measured, smooth uplink beam measurement can be ensured; the pre-configured SRS resources can be directly used for transmitting the SRS to be measured on one hand, and on the other hand, the SRS to be measured can be transmitted only after activation by using an activation signaling or Downlink Control Information (DCI) indication.
Optionally, in the two embodiments, the configuration parameter corresponding to the SRS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a third value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the fourth value.
It can be understood that, by making the parameter value of at least one of the characteristic frequency domain density information and the number of times of repeated transmission in the configuration parameter corresponding to the SRS to be measured greater than the corresponding set value, preferably, the set value may be selected as a parameter value determined in the existing standard, so as to increase the accuracy of measurement.
Optionally, in the two embodiments, after performing uplink beam measurement based on the SRS to be measured, the step 103 may be further performed to update beam information according to a result of the beam measurement, and may be specifically performed to:
determining first beam information according to the result of the beam measurement;
and updating the second beam information according to the first beam information.
It can be understood that after triggering the corresponding beam measurement according to the uplink information, a preferred first beam information may be determined as the reference beam information, and then the beam information, i.e., the second beam information, of at least one of the target channel and the target reference signal is updated according to the preferred first beam information, i.e., the reference beam information.
Optionally, the step of determining the first beam information according to the result of the beam measurement may be specifically implemented as follows:
and determining first beam information according to a target SRS in the SRS to be measured, wherein the SRS to be measured is sent by adopting the same spatial relation information.
It can be understood that, for the case that the terminal device transmits each SRS to be measured on a fixed transmission beam, and the network device performs polling reception on different reception beams, the network device determines an optimal reception beam according to the measurement result of the SRS to be measured received on different reception beams, and the terminal device can automatically determine the optimal transmission beam, that is, the beam corresponding to the target SRS.
Or alternatively
Optionally, the step of determining the first beam information according to the result of the beam measurement may be further specifically implemented as follows:
according to a target SRS corresponding to a target SRS Resource Indicator (SRI), determining first beam information, wherein the target SRI is obtained by measuring the SRS to be measured sent by the network equipment by adopting different spatial relation information.
It can be understood that, for the case that the terminal device polls and transmits the SRS to be measured in different transmission directions, after the network device determines the optimal uplink transmission beam according to the received SRS measurement result to be measured, the terminal device may determine the optimal transmission beam according to the target SRS resource indication SRI fed back by the network device.
Optionally, the target SRS in the SRS to be measured corresponds to the optimal receiving beam determined by the network device according to the measurement result, and after the optimal receiving beam is determined, the optimal transmitting beam aligned with the target SRS can be determined.
Optionally, in the method for updating beam information according to the embodiment of the present invention, a process of determining the first beam information according to a result of beam measurement performed by the CSI-RS to be measured or the SRS to be measured may be implemented by the following different specific embodiments, and further, the second beam information may be determined according to the first beam information determined in different manners.
In the first specific embodiment, the first beam information may be directly determined according to the measurement result corresponding to the CSI-RS to be measured, that is, the optimal beam information (that is, the beam information corresponding to the target CSI-RS) screened based on the downlink measurement result, and then the second beam information further includes at least one of the following:
QCL information of a Physical Downlink Control Channel (PDCCH) transmitted on each Control Resource Set (CORESET);
QCL information of a Physical Downlink Shared Channel (PDSCH);
QCL information of other CSI-RSs except the target CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of a Physical Uplink Shared Channel (PUSCH);
spatial relationship information of the SRS.
It can be understood that, according to the first beam information corresponding to the target CSI-RS, at least the second beam information of the target channel, such as PDCCH, PDSCH, PUCCH, PUSCH, and the like, transmitted on each CORESET and the second beam information of the target reference signal, such as other CSI-RS, SRS, and the like, except for the target CSI-RS can be determined, so as to complete the update of the uplink and downlink beam information; the QCL information is beam information of a downlink beam, and the spatial relationship information is beam information of an uplink beam.
In the second specific embodiment, the first beam information may be directly determined according to the measurement result corresponding to the SRS to be measured, that is, the optimal beam information (that is, the beam information corresponding to the target SRS) screened based on the uplink measurement result, and then the second beam information further includes at least one of the following:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of other SRS except the target SRS.
It can be understood that at least second beam information of target channels such as PDCCH, PDSCH, PUCCH, PUSCH and the like transmitted on each CORESET and second beam information of target reference signals such as other SRS and CSI-RS except the target SRS can be determined according to the first beam information corresponding to the target SRS, so as to complete updating of uplink and downlink beam information; the QCL information is beam information of a downlink beam, and the spatial relationship information is beam information of an uplink beam.
In a third specific embodiment, the SRS resource corresponding to the SRS to be measured includes an SRS resource configured or indicated by the network device for each of a plurality of antenna panels of the terminal device. In particular, the network device may configure or indicate one or more SRS resources for each of a plurality of antenna panels of the terminal device.
The method for updating beam information in the embodiment of the present invention may further include the following steps:
the target SRS is transmitted on a target SRS resource among a plurality of SRS resources corresponding to the plurality of antenna panels.
Optionally, the target SRS resource is determined based on the location state information of the terminal device; wherein the target SRS resources correspond to a target antenna panel that includes one or more of the activated antenna panels of the plurality of antenna panels.
Further, when the network device pre-configures or indicates the initial second beam information for the target channel or the target reference signal, and when the first beam information corresponds to the target SRS transmitted through the target SRS resource corresponding to the target antenna panel, it may be determined whether to update the initial second beam information according to a relationship between the first beam information and the initial second beam information, and the method specifically includes the following steps:
if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels, taking the first beam information as new second beam information;
and if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel, taking the first beam information as new second beam information or keeping the second beam information unchanged.
That is, when the first beam information corresponds to the target SRS transmitted through the target SRS resource of the target antenna panel, in the case where the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel (i.e., the target antenna panel), the initial second beam information may be updated to the first beam information, or the initial second beam information may be maintained; in contrast, in the case where the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels, that is, the reference signal of the second beam information does not correspond to the target antenna panel, the initial second beam information may be updated to the first beam information.
In the fourth specific embodiment, beam information corresponding to at least one of the target synchronization signal block SSB and the target CORESET may be preferentially determined according to a measurement result corresponding to the CSI-RS to be measured or the SRS to be measured, that is, optimal beam information (that is, beam information corresponding to the target SRS or the target CSI-RS) screened based on the measurement result, and further, the first beam information may be determined according to beam information corresponding to at least one of the target synchronization signal block SSB and the target CORESET, specifically:
the first beam information is associated with at least one of a target Synchronization Signal Block (SSB) and a target CORESET, and the target SSB and the target CORESET correspond to the target CSI-RS or the target SRS.
That is, at least one of the target SSB and the target CORESET may be determined according to the target CSI-RS or the target SRS, and the first beam information may be determined according to the at least one of the target SSB and the target CORESET.
Optionally, in a case that the first beam information is associated with at least one of the target SSB and the target CORESET, the first beam information includes one of:
beam information of at least one of a target SSB and a target CORESET determined based on the position state information of the terminal equipment; that is, beam information of at least one of the target SSB and the target CORESET is determined as the first beam information, wherein the beam information of at least one of the target SSB and the target CORESET may be determined based on the specific location state information of the terminal device.
Beam information determined based on a Tracking Reference Signal (TRS) associated with the target SSB or the target CORESET; that is, the TRS-determined beam information associated with the target SSB or the target CORESET is determined as the first beam information.
QCL Information of a PDCCH in a target Downlink Control Information (DCI) format transmitted on a target CORESET; that is, QCL information of the PDCCH of the target DCI format transmitted on the target CORESET is determined as the first beam information.
Optionally, the target DCI format includes at least one of DCI format 1 _0and DCI format 1 _1.
Further optionally, in a case that the first beam information is associated with at least one of the target SSB and the target CORESET, the second beam information includes at least one of:
QCL information of PDCCHs transmitted on CORESET other than the target CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUSCH;
spatial relationship information of the PUCCH;
spatial relationship information of the SRS.
Optionally, in a case that the first beam information is determined based on a TRS associated with the target SSB or the target CORESET, the target SSB or the target CORESET and the TRS are spatial QCL.
Alternatively, the target CORESET may be CORESET #0.
In the foregoing embodiments, the method for updating beam information according to the embodiments of the present invention may further include the following steps:
determining a power control parameter of a target channel according to the first beam information;
the power control parameter includes a path loss reference signal RS of the target channel, and the path loss RS includes an RS or a source RS in the first beam information.
It can be understood that, after the first beam information is determined, the power control parameter of the target channel may also be updated according to the first beam information, so as to accurately complete power control after updating the beam information, and improve accuracy of the path loss measurement. Specifically, the path loss reference signal RS of the target channel may be replaced with an RS in the first beam information (e.g., QCL information of the target SSB or target CORESET) or a source RS.
In the fifth embodiment, the QCL information, i.e., the first beam information, of the first PDCCH may be preferentially determined according to a measurement result corresponding to the CSI-RS to be measured or the SRS to be measured, and further, according to the first beam information, at least one of the following second beam information may be determined:
QCL information of a PDSCH scheduled by a first PDCCH;
QCL information of a CSI-RS scheduled by a first PDCCH;
spatial relationship information of a PUSCH scheduled by a first PDCCH;
spatial relationship information of the SRS scheduled by the first PDCCH.
The QCL information of the first PDCCH may be determined by at least one of the methods of determining the first beam information described in the above embodiments, that is: determining according to a measurement result of the CSI-RS to be measured received after the beam measurement indication information is transmitted, determining according to a measurement result of the SRS to be measured transmitted after the beam measurement indication information is transmitted, or determining according to a measurement result of the SRS to be measured transmitted when parameters related to beam information updating of the terminal equipment meet preset conditions.
In the sixth embodiment, QCL information or spatial relationship information, i.e., first beam information, indicated by DCI on the second PDCCH may be preferentially determined according to a measurement result corresponding to the CSI-RS to be measured or the SRS to be measured, and then at least one of the following second beam information may be determined according to the first beam information:
QCL information of a PDSCH scheduled by a second PDCCH;
QCL information of the CSI-RS scheduled by the second PDCCH;
spatial relationship information of a PUSCH scheduled by a second PDCCH;
spatial relationship information of the SRS scheduled by the second PDCCH.
Among QCL information or spatial relationship information indicated by DCI on the second PDCCH, QCL information or spatial relationship information may be determined by at least one of the methods of determining first beam information described in the above embodiments, that is: determining according to a measurement result of the CSI-RS to be measured received after the beam measurement indication information is transmitted, determining according to a measurement result of the SRS to be measured transmitted after the beam measurement indication information is transmitted, or determining according to a measurement result of the SRS to be measured transmitted when parameters related to beam information updating of the terminal equipment meet preset conditions.
Referring to fig. 2, an embodiment of the present invention provides a method for updating beam information, which is executed by a network device, and the method includes the following steps:
step 201: and receiving uplink information, wherein the uplink information is sent by the terminal equipment under the condition that a target parameter related to beam information updating of the terminal equipment meets a preset condition, and the uplink information is used for beam measurement.
Step 203: the beam information is updated based on the results of the beam measurements.
In the embodiment of the present invention, when the parameter related to the beam information update determined by the terminal device satisfies the corresponding preset condition, the terminal device may actively trigger the transmission of the uplink information for performing the beam measurement, and further may complete the update of the beam information according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to carry out beam measurement in time and actively without the control of the network equipment, so that the receiving and sending beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
Furthermore, for small data packet services, such as data transmission services in network games, beam measurement is also required before transmission, and by the method of the embodiment of the invention, the difference between the beam measurement time and the time required for transmitting the small data packet can be shortened, which is beneficial to realizing rapid data transmission.
Optionally, the uplink information is used for performing uplink beam measurement or used for performing downlink beam measurement. The beams may be referred to as spatial filters, spatial domain transmission filters, and the like. The beam information may be referred to as TCI state information, QCL information, or spatial relationship information, etc. The beam information may include a beam number, a reference signal resource index corresponding to the beam, or quality information of the beam, etc.
Optionally, in the method for updating beam information according to the embodiment of the present invention, whether a parameter related to updating beam information satisfies a corresponding preset condition may be determined through one of the following specific implementations.
In an embodiment, if the parameter is a location state change value of the terminal device, the predetermined condition is satisfied when the location state change value reaches a first set value.
It can be understood that when the position state of the terminal device changes and the position state changes to a certain extent, it can be determined that the parameters related to the updating of the beam information satisfy the corresponding preset conditions, and then the terminal device can trigger the timely sending of the uplink information to perform the corresponding beam measurement, thereby quickly solving the problem that the receiving and sending beams cannot be aligned due to the change of the position state of the terminal device.
Wherein, the change of the position state of the terminal device at least comprises: terminal equipment movement, terminal equipment rotation, terminal equipment shielding and the like; specifically, the change of the position state of the terminal device can be sensed through corresponding sensors and other devices of the terminal device.
In another embodiment, if the parameter is a measurement result of the terminal device on the downlink beam measurement indicator, the preset condition is satisfied when the measurement result of the downlink beam measurement indicator reaches the second set value.
The downlink beam measurement index comprises at least one of Reference Signal Received Power (RSRP), reference Signal Received Quality (RSRQ) and signal to interference plus noise ratio (SINR).
It can be understood that when the measurement result of the downlink beam measurement index determined by the terminal device meets the corresponding second set value, that is, it can be determined that the parameter related to the beam information update meets the corresponding preset condition, the terminal device can trigger the timely transmission of the uplink information to perform the corresponding beam measurement, thereby quickly solving the problem that the receiving and transmitting beams cannot be aligned due to the fact that the measurement result of the downlink beam measurement index of the terminal device meets a certain condition.
The correspondence between the measurement result of the downlink beam measurement indicator of the terminal device, the second setting value, and the preset condition may include one of the following:
determining that the measurement result of the downlink beam measurement index meets a preset condition under the condition that the measurement result of the downlink beam measurement index is smaller than a first threshold value (namely a second set value);
determining that the measurement result of the downlink beam measurement index meets a preset condition under the condition that the average value of the multiple measurement results of the downlink beam measurement index is smaller than a second threshold value (namely a second set value);
determining that the measurement result of the downlink beam measurement index meets a preset condition when the measurement results of the downlink beam measurement index are all smaller than a third threshold (namely, a second set value) in a preset time period;
and when the statistical frequency that the measurement result of the downlink beam measurement index is continuously smaller than the fourth threshold reaches a fifth threshold (namely a second set value), determining that the measurement result of the downlink beam measurement index meets a preset condition.
It should be noted that the specific values of the preset value and the threshold value may be set according to actual situations. In addition, the parameters related to the beam information update of the terminal device may be other parameters that can be used to measure whether the transmission of the uplink information can be initiated or not and trigger the beam information update process, in addition to the position state change value of the terminal device and the measurement result of the terminal device on the downlink beam measurement index.
Optionally, in the method for updating beam information according to the embodiment of the present invention, the scheme for receiving uplink information in step 201 may specifically be implemented as:
and receiving the uplink information on the periodic resources pre-configured by the network equipment.
Optionally, in the method for updating beam information in the embodiment of the present invention, the uplink information may include different contents, so as to perform corresponding beam measurement based on the different contents.
Example one
In this embodiment, the uplink information may include beam measurement indication information, where the beam measurement indication information is used to indicate beam measurement, so as to implement beam measurement actively triggered and controlled by the terminal device.
Optionally, the periodic resource used for the uplink information, that is, the beam measurement indication information, may include a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.
Further optionally, the beam measurement indication information received through the periodic resource may include a predefined event or trigger command, and specifically may be a predefined new event or trigger command.
Further optionally, when the periodic resource is a PUCCH resource, the scheme for receiving uplink information in step 201 may be implemented as:
and receiving the beam measurement indication information carried in the uplink control information UCI.
Optionally, the corresponding beam measurement indication information may be obtained by adding a corresponding bit in the UCI.
Further optionally, in the method for updating beam information according to the embodiment of the present invention, after step 201 and before step 203, one of the following two steps may be further included:
step A: specifically, the CSI-RS to be measured is sent to the terminal device after receiving the beam measurement indication information, and further, the beam information can be updated according to the result of the beam measurement.
It can be understood that, in this specific embodiment, the beam measurement indication information sent by the terminal device is received to know that the terminal device needs to perform downlink beam measurement at this time, that is, the terminal device instructs the network device to send the CSI-RS to be measured to the terminal device by sending the beam measurement indication information, so as to start downlink beam measurement, and update the beam information.
Optionally, the step of sending the CSI-RS to be measured to the terminal device may be specifically performed as:
repeatedly sending the CSI-RS to be measured by adopting the same QCL information; or
And sending the CSI-RS to be measured by adopting different QCL information.
Optionally, the CSI-RS resource corresponding to the CSI-RS to be measured includes at least one of:
and resources configured in advance before the uplink information is received.
And the configured resources after the uplink information is received.
Specifically, the CSI-RS resource may be configured through RRC signaling, where the CSI-RS resource may be a periodic resource.
And before receiving the uplink information, using the resources activated by the activation signaling.
And after receiving the uplink information, using the resources activated by the activation signaling.
Specifically, after the semi-persistent CSI-RS resource is configured, the CSI-RS resource for transmitting the CSI-RS to be measured may be activated through a media access control MAC CE activation signaling.
And after receiving the uplink information, using the resources indicated by the DCI.
Specifically, the DCI may be used for the configured aperiodic CSI-RS resource to indicate the CSI-RS resource for transmitting the CSI-RS to be measured.
It can be understood that by providing CSI-RS resources for sending CSI-RS to be measured, smooth downlink beam measurement can be ensured; the method comprises the steps of configuring CSI-RS resources in advance, saving time, reducing time delay and reducing expenditure, wherein the preconfigured CSI-RS resources can be directly used for sending the CSI-RS to be measured on one hand, and can be used for sending the CSI-RS to be measured only after activation by using activation signaling or Downlink Control Information (DCI) indication activation on the other hand.
Optionally, the configuration parameter corresponding to the CSI-RS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the second value.
It can be understood that, by making the parameter value of at least one of the characteristic frequency-domain density information and the number of times of repeated transmission in the configuration parameter corresponding to the CSI-RS to be measured larger than the corresponding set value, preferably, the set value may be selected as a parameter value determined in the existing standard, so as to increase the accuracy of measurement.
Optionally, in the method for updating beam information in the embodiment of the present invention, after the terminal device performs downlink beam measurement based on the CSI-RS to be measured, the step 203 of updating the beam information according to the result of the beam measurement may be further performed, and specifically, the step may be performed as:
determining first beam information according to the result of the beam measurement;
and updating the second beam information according to the first beam information.
It can be understood that after triggering the corresponding beam measurement according to the uplink information, a preferred first beam information may be determined as the reference beam information, and then the beam information, i.e., the second beam information, of at least one of the target channel and the target reference signal is updated according to the preferred first beam information, i.e., the reference beam information.
Optionally, the step of determining the first beam information according to the result of the beam measurement may be specifically implemented as follows:
and determining first beam information according to a target CSI-RS in the CSI-RS to be measured, wherein the CSI-RS to be measured is sent by adopting the same QCL information.
It can be understood that, for the case that the network device transmits each CSI-RS to be measured on a fixed transmission beam, and the terminal device polls for reception on different reception beams, the terminal device determines an optimal reception beam according to the measurement result of the CSI-RS to be measured received on different reception beams, and the network device may automatically determine the optimal transmission beam, that is, the beam corresponding to the target SRS.
Or
Optionally, the step of determining the first beam information according to the result of the beam measurement may be further specifically implemented as follows:
and determining first beam information according to a target CSI-RS corresponding to the target CSI-RS resource indication CRI, wherein the target CRI is determined by the terminal equipment based on the result obtained by measuring the CSI-RS to be measured sent by adopting different QCL information.
It can be understood that, for the case that the network device polls and transmits the CSI-RS to be measured in different transmission directions, after the terminal device determines the optimal downlink transmission beam according to the received measurement result of the CSI-RS to be measured, the network device may determine the optimal transmission beam according to the target CSI-RS resource indication CRI fed back by the terminal device.
Optionally, the target CSI-RS in the CSI-RS to be measured corresponds to the optimal receiving beam determined by the terminal device according to the measurement result, and after the optimal receiving beam is determined, the optimal transmitting beam aligned with the target CSI-RS can be determined.
And B: specifically, the SRS to be measured is sent by the terminal device after the network device receives the beam measurement indication information, and further, the beam information can be updated according to the result of the beam measurement.
It can be understood that, in this embodiment, the uplink beam measurement is performed according to the beam measurement indication information sent by the terminal device, that is, the network device receives the SRS to be measured sent by the terminal device after receiving the beam measurement indication information, so as to start the uplink beam measurement and update the beam information.
Example two
In this embodiment, the uplink information may include an SRS to be measured, that is, in a case that a parameter of the terminal device related to beam information update satisfies a corresponding preset condition, the uplink information may directly receive transmission of the SRS to be measured transmitted by the terminal device, so as to perform uplink beam measurement based on the SRS to be measured.
Optionally, in the two embodiments, that is, in a scheme of receiving the SRS to be measured sent by the terminal device after receiving the beam measurement indication information and a scheme of directly receiving the SRS to be measured sent by the terminal device when a parameter related to beam information update of the terminal device satisfies a preset condition, the scheme of receiving the SRS to be measured may specifically be implemented as follows:
receiving the SRS to be measured which is repeatedly sent by the terminal equipment by adopting the same spatial relationship information; or
And receiving the SRS to be measured sent by the terminal equipment by adopting different spatial relationship information.
Optionally, in the two embodiments, the SRS resource corresponding to the SRS to be measured includes at least one of:
a resource shared among a plurality of terminal devices.
Specifically, the SRS resource to be measured is shared with other terminal devices to transmit the SRS resource to be measured, so that the resource can be saved.
And resources configured in advance before the uplink information is received.
And the configured resources after the uplink information is received.
Specifically, the SRS resource may be configured through RRC signaling, where the SRS resource may be a periodic resource.
And before receiving the uplink information, using the resources activated by the activation signaling.
And after receiving the uplink information, using the resources activated by the activation signaling.
Specifically, after the semi-persistent SRS resource is configured, the SRS resource for transmitting the SRS to be measured may be activated through MAC CE activation signaling.
And after receiving the uplink information, using the resources indicated by the DCI.
Specifically, the DCI may be used at the configured aperiodic SRS resource to indicate the SRS resource used for transmitting the SRS to be measured.
It can be understood that by providing SRS resources for sending SRS to be measured, smooth uplink beam measurement can be ensured; the pre-configured SRS resources can be directly used for transmitting the SRS to be measured on one hand, and on the other hand, the SRS to be measured can be transmitted only after activation of an activation signaling or indication of downlink control information DCI is required to be activated.
Optionally, in the two embodiments, the configuration parameter corresponding to the SRS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a third value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the fourth value.
It can be understood that, by making the parameter value of at least one of the characteristic frequency domain density information and the number of times of repeated transmission in the configuration parameter corresponding to the SRS to be measured greater than the corresponding set value, preferably, the set value may be selected as the parameter value determined in the existing standard, so as to increase the accuracy of measurement.
Optionally, in the two embodiments, after the terminal device performs uplink beam measurement based on the SRS to be measured, the step 203 may be further performed to update beam information according to a result of the beam measurement, and may be specifically performed as:
determining first beam information according to the result of the beam measurement;
and updating the second beam information according to the first beam information.
It can be understood that after triggering the corresponding beam measurement according to the uplink information, a preferred first beam information may be determined as the reference beam information, and then the beam information, i.e., the second beam information, of at least one of the target channel and the target reference signal is updated according to the preferred first beam information, i.e., the reference beam information.
Optionally, the step of determining the first beam information according to the result of the beam measurement may be specifically implemented as follows:
and determining first beam information corresponding to a target SRS in the SRS to be measured based on a result obtained by uplink beam measurement of the received SRS to be measured.
Optionally, the target SRS in the SRS to be measured corresponds to the optimal receiving beam determined by the network device according to the measurement result, and after the optimal receiving beam is determined, the optimal transmitting beam aligned with the target SRS can be determined.
Optionally, in a case that the SRS to be measured uses different spatial relationship information for the terminal device to transmit, the method further includes:
and feeding back a target SRS resource indication SRI to the terminal equipment, wherein the target SRI corresponds to the target SRS.
It can be understood that, for the case that the terminal device polls the SRS to be measured to be transmitted on different beams, after the optimal transmission beam is determined, the terminal device may be notified by the target SRS resource indication SRI.
Optionally, in the method for updating beam information according to the embodiment of the present invention, the process of determining the first beam information according to the result of the beam measurement performed by the CSI-RS to be measured or the SRS to be measured may be implemented by the following different specific embodiments, and further may determine the second beam information according to the first beam information determined in different manners.
In the first embodiment, the first beam information may be directly determined according to the measurement result corresponding to the CSI-RS to be measured, that is, the optimal beam information screened based on the downlink measurement result, that is, the beam information corresponding to the target CSI-RS, and then the second beam information further includes at least one of the following:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of other CSI-RSs except the target CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of the SRS.
It can be understood that at least second beam information of target channels such as a PDCCH, a PDSCH, a PUCCH, a PUSCH and the like transmitted on each CORESET and second beam information of target reference signals such as other CSI-RS and SRS except the target CSI-RS can be determined according to the first beam information corresponding to the target CSI-RS, so as to complete updating of uplink and downlink beam information; the QCL information is beam information of a downlink beam, and the spatial relationship information is beam information of an uplink beam.
In the second specific embodiment, the first beam information may be directly determined according to the measurement result corresponding to the SRS to be measured, that is, the optimal beam information screened based on the uplink measurement result, that is, the beam information corresponding to the target SRS, and then the second beam information further includes at least one of the following:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of other SRS except the target SRS.
It can be understood that at least second beam information of target channels such as PDCCH, PDSCH, PUCCH, PUSCH and the like transmitted on each CORESET and second beam information of target reference signals such as other SRS and CSI-RS except the target SRS can be determined according to the first beam information corresponding to the target SRS, so as to complete updating of uplink and downlink beam information; the QCL information is beam information of a downlink beam, and the spatial relationship information is beam information of an uplink beam.
In a third specific embodiment, the SRS resource corresponding to the SRS to be measured includes an SRS resource configured or indicated by the network device for each of a plurality of antenna panels of the terminal device. In particular, the network device may configure or indicate one or more SRS resources for each of a plurality of antenna panels of the terminal device.
The method for updating beam information in the embodiment of the present invention may further include the following steps:
the target SRS is received on a target SRS resource among a plurality of SRS resources corresponding to the plurality of antenna panels.
Optionally, the target SRS resource is determined by the terminal device according to the location state information; wherein the target SRS resources correspond to a target antenna panel that includes one or more of the activated antenna panels of the plurality of antenna panels.
Further, when the network device pre-configures or indicates the initial second beam information for the target channel or the target reference signal, and when the first beam information corresponds to the target SRS transmitted through the target SRS resource corresponding to the target antenna panel, it may determine whether to update the initial second beam information according to a relationship between the first beam information and the initial second beam information, which may specifically include the following:
if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels of the terminal device, taking the first beam information as new second beam information;
and if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel of the terminal device, taking the first beam information as new second beam information or keeping the second beam information unchanged.
That is, when the first beam information corresponds to the target SRS transmitted through the target SRS resource of the target antenna panel, in the case where the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel (i.e., the target antenna panel), the initial second beam information may be updated to the first beam information, or the initial second beam information may be maintained; in contrast, in the case where the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels, that is, the reference signal of the second beam information does not correspond to the target antenna panel, the initial second beam information may be updated to the first beam information.
In a fourth specific embodiment, beam information corresponding to at least one of the target synchronization signal block SSB and the target CORESET may be preferentially determined according to a measurement result corresponding to the CSI-RS to be measured or the SRS to be measured, that is, optimal beam information (that is, beam information corresponding to the target SRS or the target CSI-RS) screened based on the measurement result, and further, the first beam information may be determined according to beam information corresponding to at least one of the target synchronization signal block SSB and the target CORESET, specifically:
the first beam information is associated with at least one of a target synchronization signal block SSB and a target CORESET, which correspond to the target CSI-RS or the target SRS.
That is, at least one of the target SSB and the target CORESET may be determined according to the target CSI-RS or the target SRS, and the first beam information may be determined according to the at least one of the target SSB and the target CORESET.
Optionally, in a case that the first beam information is associated with at least one of the target SSB and the target CORESET, the first beam information includes one of:
beam information of at least one of a target SSB and a target CORESET determined based on the position state information of the terminal equipment; that is, beam information of at least one of the target SSB and the target CORESET is determined as the first beam information, wherein the beam information of at least one of the target SSB and the target CORESET may be determined based on the specific location state information of the terminal device.
Beam information determined based on a tracking reference signal TRS associated with the target SSB or the target CORESET; that is, the TRS-determined beam information associated with the target SSB or the target CORESET is determined as the first beam information.
QCL information of a PDCCH in a target downlink control information DCI format transmitted on a target CORESET; that is, QCL information of the PDCCH of the target DCI format transmitted on the target CORESET is determined as the first beam information.
Optionally, the target DCI format includes at least one of DCI format 1 _0and DCI format 1 _1.
Further optionally, in a case that the first beam information is associated with at least one of the target SSB and the target CORESET, the second beam information includes at least one of:
QCL information of PDCCHs transmitted on other CORESETs except the target CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUSCH;
spatial relationship information of the PUCCH;
spatial relationship information of the SRS.
Optionally, in a case that the first beam information is determined based on a TRS associated with the target SSB or the target CORESET, the target SSB or the target CORESET and the TRS are spatial QCL.
Alternatively, the target CORESET may be CORESET #0.
In the foregoing embodiments, the method for updating beam information according to the embodiments of the present invention may further include the following steps:
determining a power control parameter of a target channel according to the first beam information;
the power control parameter includes a path loss reference signal RS of the target channel, and the path loss RS includes an RS or a source RS in the first beam information.
It can be understood that, after the first beam information is determined, the power control parameter of the target channel may also be updated according to the first beam information, so as to accurately complete power control after updating the beam information, and improve accuracy of the path loss measurement. Specifically, the path loss reference signal RS of the target channel may be replaced with an RS or a source RS in the first beam information (e.g., QCL information of the target SSB or target CORESET).
In the fifth embodiment, the QCL information, i.e., the first beam information, of the first PDCCH may be preferentially determined according to a measurement result corresponding to the CSI-RS to be measured or the SRS to be measured, and further, according to the first beam information, at least one of the following second beam information may be determined:
QCL information of a PDSCH scheduled by a first PDCCH;
QCL information of a CSI-RS scheduled by a first PDCCH;
spatial relationship information of a PUSCH scheduled by a first PDCCH;
spatial relationship information of the SRS scheduled by the first PDCCH.
The QCL information of the first PDCCH may be determined by at least one of the methods of determining the first beam information described in the above embodiments, that is: determining according to a measurement result of the CSI-RS to be measured received after the beam measurement indication information is transmitted, determining according to a measurement result of the SRS to be measured transmitted after the beam measurement indication information is transmitted, or determining according to a measurement result of the SRS to be measured transmitted when parameters related to beam information updating of the terminal equipment meet preset conditions.
In the sixth embodiment, QCL information or spatial relationship information, i.e., first beam information, indicated by DCI on the second PDCCH may be preferentially determined according to a measurement result corresponding to the CSI-RS to be measured or the SRS to be measured, and then at least one of the following second beam information may be determined according to the first beam information:
QCL information of a PDSCH scheduled by a second PDCCH;
QCL information of the CSI-RS scheduled by the second PDCCH;
spatial relationship information of a PUSCH scheduled by a second PDCCH;
spatial relationship information of the SRS scheduled by the second PDCCH.
Among QCL information or spatial relationship information indicated by DCI on the second PDCCH, QCL information or spatial relationship information may be determined by at least one of the methods of determining first beam information described in the above embodiments, that is: determining according to a measurement result of the CSI-RS to be measured received after the beam measurement indication information is transmitted, determining according to a measurement result of the SRS to be measured transmitted after the beam measurement indication information is transmitted, or determining according to a measurement result of the SRS to be measured transmitted when parameters related to beam information updating of the terminal equipment meet preset conditions.
Referring to fig. 3, an embodiment of the present invention provides a terminal device 300, where the terminal device 300 includes:
a sending module 301, configured to send uplink information when a parameter related to beam information update of a terminal device meets a preset condition, where the uplink information is used for performing beam measurement;
an updating module 303, configured to update the beam information according to the result of the beam measurement.
Optionally, the terminal device 300 in the embodiment of the present invention may further include a first determining module, where the first determining module is configured to:
under the condition that the parameter is the position state change value of the terminal equipment, if the position state change value reaches a first set value, determining that the target parameter meets a preset condition; or alternatively
And under the condition that the parameters are the measurement results of the terminal equipment on the downlink beam measurement indexes, if the measurement results of the downlink beam measurement indexes reach a second set value, determining that the parameters meet preset conditions.
The downlink beam measurement index comprises at least one of Reference Signal Received Power (RSRP), reference Signal Received Quality (RSRQ) and signal-to-interference-plus-noise ratio (SINR).
Optionally, in the terminal device 300 according to the embodiment of the present invention, the sending module 301 may be specifically configured to:
and sending the uplink information on the periodic resources pre-configured by the network equipment.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the update module 303 may specifically include:
the determining submodule is used for determining first beam information according to the result of the beam measurement;
and the updating submodule is used for updating the second beam information according to the first beam information.
Optionally, in the terminal device 300 of the embodiment of the present invention, the uplink information includes a sounding reference signal to be measured SRS; or the uplink information comprises beam measurement indication information comprising predefined events or trigger signaling.
Optionally, in the terminal device 300 of the embodiment of the present invention, in a case that the uplink information includes beam measurement indication information and receives a CSI-RS for CSI-RS to be measured sent by a network device after the beam measurement indication information is sent, the determining sub-module may be specifically configured to:
and determining first beam information corresponding to a target CSI-RS in the CSI-RS to be measured based on a result obtained by downlink beam measurement of the received CSI-RS to be measured.
Optionally, the terminal device 300 according to the embodiment of the present invention may further include:
and the feedback module is used for feeding back a target CSI-RS resource indication CRI to the network equipment under the condition that the CSI-RS to be measured uses different quasi co-located QCL information to send for the network equipment, wherein the target CRI corresponds to the target CSI-RS.
Optionally, in the terminal device 300 according to the embodiment of the present invention, when the first beam information corresponds to the target CSI-RS, the second beam information includes at least one of the following:
QCL information of a physical downlink control channel PDCCH transmitted on each control resource set CORESET;
QCL information of a Physical Downlink Shared Channel (PDSCH);
QCL information of other CSI-RSs except the target CSI-RS;
spatial relationship information of the PUCCH;
spatial relation information of a Physical Uplink Shared Channel (PUSCH);
spatial relationship information of the SRS.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the CSI-RS resource corresponding to the CSI-RS to be measured includes at least one of the following:
the network equipment pre-configures resources before receiving the uplink information;
the network equipment receives the uplink information and then allocates resources;
before receiving the uplink information, the network equipment uses the resources activated by the activation signaling;
after receiving the uplink information, the network equipment uses the resources activated by the activation signaling;
after receiving the uplink information, the network device uses the resources indicated by the downlink control information DCI.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the configuration parameter corresponding to the CSI-RS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value.
Optionally, in the terminal device 300 of the embodiment of the present invention, when the uplink information includes an SRS to be measured, or when the uplink information includes beam measurement indication information and the terminal device sends the SRS to be measured after sending the beam measurement indication information, the determining sub-module may be specifically configured to:
determining first beam information according to a target SRS in the SRS to be measured, wherein the SRS to be measured is sent by adopting the same spatial relation information; or alternatively
And determining first beam information according to a target SRS corresponding to the target SRS resource indication SRI, wherein the target SRI is obtained by the SRS to be measured which is sent by the network equipment by adopting different spatial relation information based on measurement.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the SRS resource corresponding to the SRS to be measured includes at least one of the following resources:
a resource shared among a plurality of terminal devices;
the network equipment pre-configures resources before receiving the uplink information;
the network equipment receives the uplink information and then allocates resources;
before receiving the uplink information, the network equipment uses the resources activated by the activation signaling;
after receiving the uplink information, the network equipment uses the resources activated by the activation signaling;
and after receiving the uplink information, the network equipment uses the resources indicated by the DCI.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the SRS resource corresponding to the SRS to be measured includes an SRS resource configured or indicated by the network device for each antenna panel in the multiple antenna panels of the terminal device;
the sending module 301 may be further configured to:
the target SRS is transmitted on a target SRS resource among a plurality of SRS resources corresponding to the plurality of antenna panels.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the target SRS resource is determined based on the location state information of the terminal device;
the target SRS resource corresponds to a target antenna panel, and the target antenna panel includes one or more activated antenna panels of the plurality of antenna panels.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the update sub-module may be specifically configured to:
if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels, taking the first beam information as new second beam information;
and if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel, taking the first beam information as new second beam information or keeping the second beam information unchanged.
Optionally, in the terminal device 300 according to the embodiment of the present invention, when the first beam information corresponds to the target SRS, the second beam information includes at least one of:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of other SRS except the target SRS.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the configuration parameter corresponding to the SRS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a third value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the fourth value.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the first beam information is associated with at least one of a target synchronization signal block SSB and a target CORESET, where the target SSB and the target CORESET correspond to a target CSI-RS or a target SRS.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the first beam information includes one of:
beam information of at least one of a target SSB and a target CORESET determined based on the position state information of the terminal equipment;
beam information determined based on a tracking reference signal TRS associated with a target SSB or a target CORESET;
QCL information of the PDCCH in the format of target downlink control information DCI transmitted on the target CORESET.
Optionally, in the terminal device 300 according to the embodiment of the present invention, when the first beam information is determined based on the TRS associated with the target SSB or the target CORESET, the target SSB or the target CORESET and the TRS are a spatial QCL.
Optionally, in the terminal device 300 according to the embodiment of the present invention, the second beam information includes at least one of the following:
QCL information of PDCCHs transmitted on other CORESETs except the target CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUSCH;
spatial relationship information of the PUCCH;
spatial relationship information of the SRS.
Optionally, the terminal device 300 according to the embodiment of the present invention may further include:
a second determining module, configured to determine a power control parameter of the target channel according to the first beam information;
the power control parameter includes a path loss reference signal RS of the target channel, and the path loss RS includes an RS or a source RS in the first beam information.
Optionally, in the terminal device 300 according to the embodiment of the present invention, when the first beam information is QCL information of the first PDCCH, the second beam information includes at least one of:
QCL information of a PDSCH scheduled by a first PDCCH;
QCL information of a CSI-RS scheduled by a first PDCCH;
spatial relationship information of a PUSCH scheduled by a first PDCCH;
spatial relationship information of the SRS scheduled by the first PDCCH.
Optionally, in the terminal device 300 according to the embodiment of the present invention, when the first beam information is QCL information or spatial relationship information indicated by DCI on a second PDCCH, the second beam information includes at least one of the following:
QCL information of a PDSCH scheduled by a second PDCCH;
QCL information of the CSI-RS scheduled by the second PDCCH;
spatial relationship information of a PUSCH scheduled by a second PDCCH;
spatial relationship information of an SRS scheduled by the second PDCCH.
It can be understood that, the terminal device 300 provided in the embodiment of the present invention can implement the foregoing method for updating beam information executed by the terminal device 300, and the related descriptions about the method for updating beam information are all applicable to the terminal device 300, and are not described herein again.
In the embodiment of the present invention, when the parameter related to the beam information update determined by the terminal device satisfies the corresponding preset condition, the terminal device may actively trigger the transmission of the uplink information for performing the beam measurement, and further may complete the update of the beam information according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to carry out beam measurement in time and actively without the control of the network equipment, so that the receiving and sending beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
Referring to fig. 4, an embodiment of the present invention provides a network device 400, where the network device 400 includes:
a receiving module 401, configured to receive uplink information, where the uplink information is sent by a terminal device when a parameter of the terminal device related to beam information update meets a preset condition, and the uplink information is used for performing beam measurement;
an updating module 403, configured to update the beam information according to the result of the beam measurement.
Optionally, in the network device 400 of the embodiment of the present invention, if the parameter is a location state change value of the terminal device, the location state change value satisfies a preset condition when reaching a first set value; or
And if the parameter is the measurement result of the terminal equipment on the downlink beam measurement index, the preset condition is met when the measurement result of the downlink beam measurement index reaches a second set value.
The downlink beam measurement index includes at least one of reference signal received power RSRP, reference signal received quality RSRQ, and signal-to-interference-plus-noise ratio SINR.
Optionally, in the network device 400 according to the embodiment of the present invention, the receiving module 401 may be specifically configured to:
and receiving uplink information on the pre-configured periodic resources.
Optionally, in the network device 400 according to the embodiment of the present invention, the update module 403 may be specifically configured to:
the determining submodule is used for determining first beam information according to the result of the beam measurement;
and the updating submodule is used for updating the second beam information according to the first beam information.
Optionally, in the network device 400 according to the embodiment of the present invention, the uplink information includes an SRS to be measured; or the uplink information comprises beam measurement indication information comprising predefined events or trigger signaling.
Optionally, in the network device 400 according to the embodiment of the present invention, when the uplink information includes beam measurement indication information and the CSI-RS to be measured is sent to the terminal device after the beam measurement indication information is received, the determining sub-module may be specifically configured to:
determining first beam information according to a target CSI-RS in the CSI-RS to be measured, wherein the CSI-RS to be measured is sent by adopting the same QCL information; or alternatively
And determining first beam information according to a target CSI-RS corresponding to the target CSI-RS resource indication CRI, wherein the target CRI is determined by the terminal equipment based on the result obtained by measuring the CSI-RS to be measured sent by adopting different QCL information.
Optionally, in the network device 400 according to the embodiment of the present invention, when the first beam information corresponds to the target CSI-RS, the second beam information includes at least one of the following:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of other CSI-RSs except the target CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of the SRS.
Optionally, in the network device 400 according to the embodiment of the present invention, the CSI-RS resource corresponding to the CSI-RS to be measured includes at least one of the following:
pre-configuring resources before receiving uplink information;
resources configured after receiving the uplink information;
before receiving the uplink information, using the resources activated by the activation signaling;
after receiving the uplink information, using the resource activated by the activation signaling;
and after receiving the uplink information, using the resources indicated by the DCI.
Optionally, in the network device 400 according to the embodiment of the present invention, the configuration parameter corresponding to the CSI-RS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value.
Optionally, in the network device 400 in the embodiment of the present invention, the determining sub-module, in a case that the uplink information includes an SRS to be measured, or in a case that the uplink information includes beam measurement indication information and receives the SRS to be measured sent by the terminal device after the beam measurement indication information is sent, may specifically be configured to:
and determining first beam information corresponding to a target SRS in the SRS to be measured based on a result obtained by uplink beam measurement of the received SRS to be measured.
Optionally, the network device 400 according to the embodiment of the present invention may further include:
and the feedback module is used for feeding back a target SRS resource indication SRI to the terminal equipment under the condition that the SRS to be measured is sent by using different spatial relation information for the terminal equipment, wherein the target SRI corresponds to the target SRS.
Optionally, in the network device 400 according to the embodiment of the present invention, the SRS resource corresponding to the SRS to be measured includes at least one of the following resources:
a resource shared among a plurality of terminal devices;
pre-configuring resources before receiving uplink information;
resources configured after receiving the uplink information;
before receiving the uplink information, using the resources activated by the activation signaling;
after receiving the uplink information, using resources activated by the activation signaling;
and after receiving the uplink information, using the resources indicated by the DCI.
Optionally, in the network device 400 according to the embodiment of the present invention, the SRS resource corresponding to the SRS to be measured includes an SRS resource configured or indicated for each antenna panel of multiple antenna panels of the terminal device;
the receiving module 401 may be further configured to:
the target SRS is received on a target SRS resource among a plurality of SRS resources corresponding to the plurality of antenna panels.
Optionally, in the network device 400 according to the embodiment of the present invention, the target SRS resource is determined by the terminal device according to the location status information;
the target SRS resource corresponds to a target antenna panel, and the target antenna panel includes one or more activated antenna panels of the plurality of antenna panels.
Optionally, in the network device 400 according to the embodiment of the present invention, the update sub-module may be specifically configured to:
if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels of the terminal device, taking the first beam information as new second beam information;
and if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel of the terminal device, taking the first beam information as new second beam information or keeping the second beam information unchanged.
Optionally, in the network device 400 according to this embodiment of the present invention, when the first beam information corresponds to the target SRS, the second beam information includes at least one of the following:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of other SRS except the target SRS.
Optionally, in the network device 400 according to the embodiment of the present invention, the configuration parameter corresponding to the SRS to be measured satisfies at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a third value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the fourth value.
Optionally, in the network device 400 according to the embodiment of the present invention, the first beam information is associated with at least one of the target synchronization signal block SSB and the target CORESET, and the target SSB and the target CORESET correspond to the target CSI-RS or the target SRS.
Optionally, in the network device 400 according to the embodiment of the present invention, the first beam information includes one of the following:
beam information of at least one of a target SSB and a target CORESET determined based on the position state information of the terminal equipment;
beam information determined based on a tracking reference signal TRS associated with the target SSB or the target CORESET;
QCL information of the PDCCH in the format of target downlink control information DCI transmitted on the target CORESET.
Optionally, in the network device 400 according to the embodiment of the present invention, in a case that the first beam information is determined based on a TRS associated with a target SSB or a target CORESET, the target SSB or the target CORESET and the TRS are a spatial QCL.
Optionally, in the network device 400 according to the embodiment of the present invention, the second beam information includes at least one of the following:
QCL information of PDCCHs transmitted on other CORESETs except the target CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUSCH;
spatial relationship information of the PUCCH;
spatial relationship information of the SRS.
Optionally, the network device 400 according to the embodiment of the present invention may further include:
a determining module, configured to determine a power control parameter of a target channel according to the first beam information;
the power control parameter includes a path loss reference signal RS of the target channel, and the path loss RS includes an RS or a source RS in the first beam information.
Optionally, in the network device 400 according to the embodiment of the present invention, when the first beam information is QCL information of the first PDCCH, the second beam information includes at least one of the following:
QCL information of a PDSCH scheduled by a first PDCCH;
QCL information of a CSI-RS scheduled by a first PDCCH;
spatial relationship information of a PUSCH scheduled by a first PDCCH;
spatial relationship information of the SRS scheduled by the first PDCCH.
Optionally, in the network device 400 according to the embodiment of the present invention, when the first beam information is QCL information or spatial relationship information indicated by DCI on a second PDCCH, the second beam information includes at least one of the following:
QCL information of a PDSCH scheduled by a second PDCCH;
QCL information of the CSI-RS scheduled by the second PDCCH;
spatial relationship information of a PUSCH scheduled by a second PDCCH;
spatial relationship information of the SRS scheduled by the second PDCCH.
It can be understood that the network device provided in the embodiment of the present invention can implement the foregoing method for updating beam information executed by the network device, and the related descriptions about the method for updating beam information are applicable to the network device, and are not described herein again.
In the embodiment of the present invention, when the parameter related to the beam information update determined by the terminal device satisfies the corresponding preset condition, the uplink information for performing beam measurement actively triggered and sent by the terminal device is received, and further, the update of the beam information can be completed according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to perform beam measurement in time and actively without the control of the network equipment, so that the receiving and transmitting beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
Fig. 5 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 500 shown in fig. 5 includes: at least one processor 501, memory 502, at least one network interface 504, and a user interface 503. The various components in the terminal device 500 are coupled together by a bus system 505. It is understood that the bus system 505 is used to enable connection communications between these components. The bus system 505 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 505 in FIG. 5.
The user interface 503 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 502 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 502 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof as follows: an operating system 5021 and application programs 5022.
The operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 5022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. The program for implementing the method according to the embodiment of the present invention may be included in the application program 5022.
In this embodiment of the present invention, the terminal device 500 further includes: a computer program stored on the memory 502 and executable on the processor 501, the computer program when executed by the processor 501 implementing the steps of:
sending uplink information under the condition that parameters of the terminal equipment related to beam information updating meet preset conditions, wherein the uplink information is used for beam measurement;
the beam information is updated based on the results of the beam measurements.
In the embodiment of the present invention, when the parameter related to the beam information update determined by the terminal device satisfies the corresponding preset condition, the terminal device may actively trigger the transmission of the uplink information for performing the beam measurement, and further may complete the update of the beam information according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to perform beam measurement in time and actively without the control of the network equipment, so that the receiving and transmitting beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The Processor 501 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and combines the hardware to complete the steps of the method. In particular, the computer readable storage medium has stored thereon a computer program, which when executed by the processor 501 implements the steps of the resource allocation method embodiments as described above.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The terminal device 500 can implement the processes implemented by the terminal device in the foregoing embodiments, and in order to avoid repetition, the descriptions are omitted here.
Referring to fig. 6, fig. 6 is a structural diagram of a network device applied in the embodiment of the present invention, which can implement the details of the method for updating beam information and achieve the same effect. As shown in fig. 6, the network device 600 includes: a processor 601, a transceiver 602, a memory 603, a user interface 604, and a bus interface 605, wherein:
in this embodiment of the present invention, the network device 600 further includes: a computer program stored in the memory 603 and executable on the processor 601, the computer program when executed by the processor 601 performing the steps of:
receiving uplink information, wherein the uplink information is sent by the terminal equipment under the condition that parameters related to beam information updating of the terminal equipment meet preset conditions, and the uplink information is used for beam measurement;
the beam information is updated based on the results of the beam measurements.
In the embodiment of the present invention, when the parameter related to beam information update determined by the terminal device satisfies the corresponding preset condition, the uplink information for beam measurement actively triggered and sent by the terminal device is received, and further, the update of the beam information can be completed according to the result of the beam measurement. Therefore, the terminal equipment can be triggered to carry out beam measurement in time and actively without the control of the network equipment, so that the receiving and sending beams of the network equipment side and the terminal equipment side can be aligned in time, the communication quality is ensured, the overhead and the time delay of the beam measurement can be reduced, and the processes of beam updating and data transmission are accelerated.
In fig. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, in particular, one or more processors, represented by processor 601, and memory, represented by memory 603. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. Bus interface 605 provides an interface. The transceiver 602 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 604 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.
Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the foregoing method for updating beam information, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above method for updating beam information applied to a terminal device, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Preferably, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the foregoing method for updating beam information, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment for updating beam information of a network device, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (43)

1. A method for updating beam information is applied to a terminal device, and is characterized in that the method comprises the following steps:
sending uplink information under the condition that parameters of the terminal equipment related to beam information updating meet preset conditions, wherein the uplink information is used for beam measurement; the uplink information comprises Sounding Reference Signals (SRS) to be measured; or the uplink information comprises beam measurement indication information, the beam measurement indication information comprises a predefined event or trigger signaling, and the beam measurement indication information is used for indicating the network equipment to send a channel state information reference signal (CSI-RS) to be measured to the terminal equipment after receiving the beam measurement indication information;
updating beam information according to the result of the beam measurement;
the updating the beam information according to the result of the beam measurement includes:
determining first beam information according to the result of the beam measurement;
when the uplink information includes the beam measurement indication information and receives a CSI-RS to be measured sent by a network device after sending the beam measurement indication information, the determining, according to a result of the beam measurement, first beam information includes:
determining the first beam information corresponding to a target CSI-RS in the CSI-RS to be measured based on a received result obtained by downlink beam measurement of the CSI-RS to be measured;
or
When the uplink information includes an SRS to be measured, or when the uplink information includes the beam measurement indication information and the SRS to be measured is transmitted to the network device after the beam measurement indication information is transmitted, determining first beam information according to a result of beam measurement includes:
determining the first beam information according to a target SRS in the SRS to be measured, wherein the SRS to be measured is sent by adopting the same spatial relation information; or
Determining the first beam information according to a target SRS corresponding to a target SRS resource indication SRI, wherein the target SRI is obtained by the network equipment based on measurement and adopting different space relation information to send the SRS to be measured;
updating second beam information according to the first beam information; wherein the first beam information is reference beam information;
wherein the configuration parameters corresponding to the CSI-RS to be measured meet at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value, and the first value is a set value representing the frequency domain density information;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value, and the second value is a set value representing the repeated sending times.
2. The method of claim 1, further comprising:
under the condition that the parameter is the position state change value of the terminal equipment, if the position state change value reaches a first set value, determining that the parameter meets the preset condition; or
And under the condition that the parameter is the measurement result of the downlink beam measurement index by the terminal equipment, if the measurement result of the downlink beam measurement index reaches a second set value, determining that the parameter meets the preset condition.
3. The method of claim 1, wherein the sending the uplink information comprises:
and sending the uplink information on a periodic resource pre-configured by the network equipment.
4. The method according to claim 1, wherein in case that the CSI-RS to be measured is sent using different quasi co-located QCL information for the network device, the method further comprises:
feeding back a target CSI-RS resource indication (CRI) to the network device, the target CRI corresponding to the target CSI-RS.
5. The method according to claim 1 or 4, wherein in case that the first beam information corresponds to the target CSI-RS, the second beam information comprises at least one of:
QCL information of a physical downlink control channel PDCCH transmitted on each control resource set CORESET;
QCL information of a Physical Downlink Shared Channel (PDSCH);
QCL information of other CSI-RSs except the target CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of a Physical Uplink Shared Channel (PUSCH);
spatial relationship information of the SRS.
6. The method according to claim 1 or 4, wherein the CSI-RS resource corresponding to the CSI-RS to be measured comprises at least one of:
the network equipment pre-configures resources before receiving the uplink information;
the network equipment receives the uplink information and then allocates resources;
the network equipment uses the resources activated by the activation signaling before receiving the uplink information;
after receiving the uplink information, the network equipment uses resources activated by the activation signaling;
and after receiving the uplink information, the network equipment uses the resources indicated by the downlink control information DCI.
7. The method according to claim 1, wherein the SRS resources corresponding to the SRS to be measured comprise at least one of:
a resource shared among a plurality of terminal devices;
the network equipment pre-configures resources before receiving the uplink information;
the network equipment receives the uplink information and then allocates resources;
the network equipment uses the resources activated by the activation signaling before receiving the uplink information;
after receiving the uplink information, the network equipment uses resources activated by the activation signaling;
and the network equipment uses the resources indicated by the DCI after receiving the uplink information.
8. The method according to claim 1, wherein the SRS resources corresponding to the SRS to be measured comprise SRS resources configured or indicated by the network device for each of a plurality of antenna panels of the terminal device;
wherein the method further comprises:
and transmitting the target SRS on a target SRS resource in a plurality of SRS resources corresponding to the plurality of antenna panels.
9. The method of claim 8, wherein the target SRS resource is determined based on location state information of the terminal device;
wherein the target SRS resources correspond to a target antenna panel including one or more of the activated antenna panels of the plurality of antenna panels.
10. The method according to claim 8 or 9, wherein said updating second beam information based on said first beam information comprises:
if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels, taking the first beam information as new second beam information;
and if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel, taking the first beam information as new second beam information, or keeping the second beam information unchanged.
11. The method of claim 1, wherein in the case that the first beam information corresponds to the target SRS, the second beam information comprises at least one of:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of other SRSs than the target SRS.
12. The method according to claim 1, wherein the configuration parameters corresponding to the SRS to be measured satisfy at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a third value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the fourth value.
13. The method of claim 1 or 4, wherein the first beam information is associated with at least one of a target Synchronization Signal Block (SSB) and a target CORESET, and wherein the target SSB and the target CORESET correspond to the target CSI-RS or the target SRS.
14. The method of claim 13, wherein the first beam information comprises one of:
beam information of at least one of the target SSB and the target CORESET determined based on the position state information of the terminal equipment;
beam information determined based on a tracking reference signal TRS associated with the target SSB or the target CORESET;
QCL information of the PDCCH in the format of the target downlink control information DCI transmitted on the target CORESET.
15. The method of claim 14, wherein the target SSB or the target CORESET and the TRS are spatial QCLs if the first beam information is determined based on the TRS associated with the target SSB or the target CORESET.
16. The method of claim 14, wherein the second beam information comprises at least one of:
QCL information of PDCCHs transmitted on other CORESETs except the target CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUSCH;
spatial relationship information of the PUCCH;
spatial relationship information of the SRS.
17. The method of claim 1, further comprising:
determining a power control parameter of a target channel according to the first beam information;
the power control parameter includes a path loss reference signal RS of the target channel, where the path loss RS includes an RS or a source RS in the first beam information.
18. The method of claim 1, wherein in case that the first beam information is QCL information of a first PDCCH, the second beam information comprises at least one of:
QCL information of the PDSCH scheduled by the first PDCCH;
QCL information of CSI-RS scheduled by the first PDCCH;
spatial relationship information of a PUSCH scheduled by the first PDCCH;
spatial relationship information of the SRS scheduled by the first PDCCH.
19. The method of claim 1, wherein in the case that the first beam information is QCL information or spatial relationship information indicated by DCI on a second PDCCH, the second beam information comprises at least one of:
QCL information of a PDSCH scheduled by the second PDCCH;
QCL information of the CSI-RS scheduled by the second PDCCH;
spatial relationship information of a PUSCH scheduled by the second PDCCH;
spatial relationship information of an SRS scheduled by the second PDCCH.
20. A method for updating beam information, applied to a network device, is characterized in that the method comprises:
receiving uplink information, wherein the uplink information is sent by a terminal device under the condition that parameters related to beam information updating of the terminal device meet preset conditions, and the uplink information is used for beam measurement; the uplink information comprises Sounding Reference Signals (SRS) to be measured; or the uplink information comprises beam measurement indication information, wherein the beam measurement indication information comprises a predefined event or trigger signaling;
updating beam information according to the result of the beam measurement;
the updating the beam information according to the result of the beam measurement includes:
determining first beam information according to the result of the beam measurement;
when the uplink information includes the beam measurement indication information and the CSI-RS to be measured is sent to the terminal device after receiving the beam measurement indication information, determining first beam information according to a result of beam measurement includes:
determining the first beam information according to a target CSI-RS in the CSI-RS to be measured, wherein the CSI-RS to be measured is sent by adopting the same QCL information; or
Determining the first beam information according to a target CSI-RS corresponding to a target CSI-RS resource indication CRI, wherein the target CRI is determined by the terminal equipment based on a result obtained by measuring the CSI-RS to be measured sent by adopting different QCL information;
or
When the uplink information includes an SRS to be measured, or when the uplink information includes the beam measurement indication information and the SRS to be measured sent by the terminal device is received after the beam measurement indication information is received, determining first beam information according to a result of beam measurement, including:
determining the first beam information corresponding to a target SRS in the SRS to be measured based on a received result obtained by performing uplink beam measurement on the SRS to be measured;
updating second beam information according to the first beam information; wherein the first beam information is reference beam information;
wherein the configuration parameters corresponding to the CSI-RS to be measured meet at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value, and the first value is a set value representing the frequency domain density information;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value, and the second value is a set value representing the repeated sending times.
21. The method of claim 20,
if the parameter is the position state change value of the terminal equipment, the preset condition is met when the position state change value reaches a first set value; or
And if the parameter is the measurement result of the downlink beam measurement index by the terminal equipment, the preset condition is met when the measurement result of the downlink beam measurement index reaches a second set value.
22. The method of claim 21, wherein the receiving uplink information comprises:
and receiving the uplink information on a pre-configured periodic resource.
23. The method of claim 20, wherein in case the first beam information corresponds to the target CSI-RS, the second beam information comprises at least one of:
QCL information of the PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of other CSI-RSs except the target CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of the SRS.
24. The method according to claim 20, wherein the CSI-RS resource corresponding to the CSI-RS to be measured comprises at least one of:
resources pre-configured before the uplink information is received;
resources configured after receiving the uplink information;
before receiving the uplink information, using resources activated by an activation signaling;
after receiving the uplink information, using resources activated by the activation signaling;
and after receiving the uplink information, using the resources indicated by the DCI.
25. The method according to claim 20, wherein in case that the SRS to be measured is transmitted using different spatial relationship information for the terminal device, the method further comprises:
and feeding back a target SRS Resource Indication (SRI) to the terminal equipment, wherein the target SRI corresponds to the target SRS.
26. The method according to claim 24, wherein the SRS resource corresponding to the SRS to be measured comprises at least one of:
a resource shared among a plurality of terminal devices;
resources pre-configured before the uplink information is received;
resources configured after receiving the uplink information;
before receiving the uplink information, using resources activated by an activation signaling;
after receiving the uplink information, using resources activated by the activation signaling;
and after receiving the uplink information, using the resources indicated by the DCI.
27. The method according to claim 26, wherein the SRS resource corresponding to the SRS to be measured comprises an SRS resource configured or indicated for each of a plurality of antenna panels of the terminal device;
wherein the method further comprises:
and receiving the target SRS on a target SRS resource in a plurality of SRS resources corresponding to the plurality of antenna panels.
28. The method of claim 27, wherein the target SRS resource is determined by the terminal device according to location status information;
wherein the target SRS resources correspond to a target antenna panel that includes one or more of the activated antenna panels of the plurality of antenna panels.
29. The method of claim 28, wherein updating second beam information based on the first beam information comprises:
if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to different antenna panels of the terminal device, taking the first beam information as new second beam information;
and if the reference signal corresponding to the first beam information and the reference signal corresponding to the second beam information correspond to the same antenna panel of the terminal device, taking the first beam information as new second beam information, or keeping the second beam information unchanged.
30. The method of claim 20 or 25, wherein in case the first beam information corresponds to the target SRS, the second beam information comprises at least one of:
QCL information of PDCCH transmitted on each CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUCCH;
spatial relationship information of the PUSCH;
spatial relationship information of other SRSs other than the target SRS.
31. The method according to claim 20 or 25, wherein the configuration parameters corresponding to the SRS to be measured satisfy at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a third value;
and the parameter value representing the repeated sending times in the configuration parameters is larger than the fourth value.
32. The method of claim 20 or 25, wherein the first beam information is associated with at least one of a target synchronization signal block SSB and a target CORESET, and wherein the target SSB and the target CORESET correspond to the target CSI-RS or the target SRS.
33. The method of claim 32, wherein the first beam information comprises one of:
beam information of at least one of the target SSB and the target CORESET determined based on the position state information of the terminal equipment;
beam information determined based on a tracking reference signal TRS associated with the target SSB or the target CORESET;
QCL information of the PDCCH in the DCI format transmitted on the target CORESET.
34. The method of claim 33, wherein the target SSB or the target CORESET and the TRS are spatial QCLs if the first beam information is determined based on the TRS associated with the target SSB or the target CORESET.
35. The method of claim 33, wherein the second beam information comprises at least one of:
QCL information of PDCCHs transmitted on other CORESETs except the target CORESET;
QCL information of PDSCH;
QCL information of the CSI-RS;
spatial relationship information of the PUSCH;
spatial relationship information of the PUCCH;
spatial relationship information of the SRS.
36. The method of claim 20, further comprising:
determining a power control parameter of a target channel according to the first beam information;
the power control parameter includes a path loss reference signal RS of the target channel, and the path loss RS includes an RS or a source RS in the first beam information.
37. The method of claim 20, wherein in case that the first beam information is QCL information of a first PDCCH, the second beam information comprises at least one of:
QCL information of the PDSCH scheduled by the first PDCCH;
QCL information of the CSI-RS scheduled by the first PDCCH;
spatial relationship information of a PUSCH scheduled by the first PDCCH;
spatial relationship information of the SRS scheduled by the first PDCCH.
38. The method of claim 20, wherein in case that the first beam information is QCL information or spatial relationship information indicated by DCI on a second PDCCH, the second beam information comprises at least one of:
QCL information of a PDSCH scheduled by the second PDCCH;
QCL information of the CSI-RS scheduled by the second PDCCH;
spatial relationship information of a PUSCH scheduled by the second PDCCH;
spatial relationship information of an SRS scheduled by the second PDCCH.
39. A terminal device, comprising:
a sending module, configured to send uplink information when a parameter of the terminal device related to beam information update meets a preset condition, where the uplink information is used for performing beam measurement; the uplink information comprises Sounding Reference Signals (SRS) to be measured; or the uplink information comprises beam measurement indication information, the beam measurement indication information comprises a predefined event or trigger signaling, and the beam measurement indication information is used for indicating the network equipment to send the CSI-RS to be measured to the terminal equipment after receiving the beam measurement indication information;
the updating module is used for updating the beam information according to the result of the beam measurement;
the update module specifically includes:
the determining submodule is used for determining first beam information according to the result of the beam measurement;
when the uplink information includes the beam measurement indication information and receives a CSI-RS (channel state information reference signal to be measured) sent by a network device after the beam measurement indication information is sent, determining first beam information according to a result of beam measurement includes:
determining the first beam information corresponding to a target CSI-RS in the CSI-RS to be measured based on a received result obtained by downlink beam measurement of the CSI-RS to be measured;
or
When the uplink information includes an SRS to be measured, or when the uplink information includes the beam measurement indication information and the SRS to be measured is transmitted to the network device after the beam measurement indication information is transmitted, determining first beam information according to a result of beam measurement includes:
determining the first beam information according to a target SRS in the SRS to be measured, wherein the SRS to be measured is sent by adopting the same spatial relation information; or alternatively
Determining the first beam information according to a target SRS corresponding to a target SRS resource indication SRI, wherein the target SRI is obtained by the network equipment based on measurement and adopting different spatial relation information to send the SRS to be measured;
the updating submodule is used for updating the second beam information according to the first beam information; wherein the first beam information is reference beam information;
wherein the configuration parameters corresponding to the CSI-RS to be measured meet at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value, and the first value is a set value representing the frequency domain density information;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value, and the second value is a set value representing the repeated sending times.
40. A network device, comprising:
a receiving module, configured to receive uplink information, where the uplink information is sent by a terminal device when a parameter of the terminal device related to beam information update meets a preset condition, and the uplink information is used for performing beam measurement; the uplink information comprises Sounding Reference Signals (SRS) to be measured; or the uplink information comprises beam measurement indication information, wherein the beam measurement indication information comprises a predefined event or trigger signaling;
the updating module is used for updating the beam information according to the result of the beam measurement;
the update module specifically includes:
the determining submodule is used for determining first beam information according to the result of the beam measurement;
when the uplink information includes the beam measurement indication information and the CSI-RS to be measured is sent to the terminal device after receiving the beam measurement indication information, determining first beam information according to a result of beam measurement includes:
determining the first beam information according to a target CSI-RS in the CSI-RS to be measured, wherein the CSI-RS to be measured is sent by adopting the same QCL information; or alternatively
Determining the first beam information according to a target CSI-RS corresponding to a target CSI-RS resource indication CRI, wherein the target CRI is determined by the terminal equipment based on a result obtained by measuring the CSI-RS to be measured sent by adopting different QCL information;
or
When the uplink information includes an SRS to be measured, or when the uplink information includes the beam measurement indication information and the SRS to be measured sent by the terminal device is received after the beam measurement indication information is received, determining first beam information according to a result of beam measurement, including:
determining the first beam information corresponding to a target SRS in the SRS to be measured based on a received result obtained by performing uplink beam measurement on the SRS to be measured;
the updating submodule is used for updating the second beam information according to the first beam information; wherein the first beam information is reference beam information;
wherein the configuration parameters corresponding to the CSI-RS to be measured meet at least one of the following conditions:
the parameter value representing the frequency domain density information in the configuration parameters is larger than a first value, and the first value is a set value representing the frequency domain density information;
and the parameter value representing the repeated sending times in the configuration parameters is larger than a second value, and the second value is a set value representing the repeated sending times.
41. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 19.
42. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any of claims 20 to 38.
43. A computer-readable storage medium, characterized in that a computer program is stored thereon which, when being executed by a processor, carries out the steps of a method according to any one of claims 1 to 38.
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