WO2019128885A1

WO2019128885A1 - Channel state information obtaining method and device

Info

Publication number: WO2019128885A1
Application number: PCT/CN2018/122885
Authority: WO
Inventors: 张淑娟; 鲁照华; 高波; 陈艺戬; 李儒岳
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-12-29
Filing date: 2018-12-21
Publication date: 2019-07-04
Also published as: CN108206714A

Abstract

The present disclosure provides a channel state information obtaining method and device. The method comprises: determining a control channel resource corresponding to a reference signal; and obtaining, according to the parameters of the control channel resource, channel state information corresponding to the reference signal.

Description

Channel state information acquisition method and device

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 29, 2017, the filing date of

Technical field

The present disclosure relates to the field of communications, and in particular to a method and apparatus for acquiring channel state information.

Background technique

At present, high-frequency communication is the core technology in New Radio (NR) technology. One of the core issues of high-frequency communication is how to realize beam communication. In beam communication, due to movement and obstacle blocking, it will be established. The transmit and receive beam pairs cannot communicate, how to detect link performance in the beam communication system, how to quickly recover the link, and improve resource utilization is the core problem to be solved in this application.

Specifically, how to accurately predict the transmission performance of the downlink control channel according to the performance of the measurement reference signal, how to send the beam recovery request to the base station is also a core problem to be solved by the present application, and how to accurately obtain the digital precoding matrix indication information based on beam transmission (Precoding Matrix Indicator, abbreviated as PMI) is a problem to be solved by the present application.

There is currently no effective solution to the problem of the prior art lacking a technical solution for acquiring channel state information or feedback channel state information in the NR.

Summary of the invention

Embodiments of the present disclosure provide a method and apparatus for acquiring channel state information.

According to an embodiment of the present disclosure, a channel state information acquiring method is provided, including: determining a control channel resource corresponding to a reference signal; and acquiring the according to a parameter of the control channel resource, according to an embodiment of the present disclosure. The channel state information corresponding to the reference signal.

According to another embodiment of the present disclosure, a method for acquiring channel state information is further provided, including: determining a control channel transmission parameter hypothesis according to at least one of the following: an agreed parameter, a parameter of a control channel resource corresponding to the reference signal; The control channel transmission parameter assumes that channel state information of the reference signal is acquired.

According to another embodiment of the present disclosure, there is also provided a method of managing a channel state detection counter, comprising: performing a predetermined operation on a channel state detection counter when a predetermined event is detected.

According to another embodiment of the present disclosure, a channel state information feedback method is further provided, including: transmitting signaling information on a dynamically scheduled channel or signal, where the signaling information includes channel state information; The dynamically scheduled channel or signal is scheduled by physical downlink control information.

According to another embodiment of the present disclosure, an information state information feedback method is further provided, including: determining a port subset of one measurement reference signal resource corresponding to each layer number; and feeding back precoding based on the port subset The matrix indicates information.

According to another embodiment of the present disclosure, there is further provided a channel quality information acquiring apparatus, including: a first determining module configured to determine a control channel resource corresponding to a reference signal; and a first obtaining module configured to Controlling channel resource parameters, and acquiring channel state information corresponding to the reference signal.

According to another embodiment of the present disclosure, an apparatus for acquiring channel state information is further provided, including: a second determining module, determining, according to at least one of the following, a control channel transmission parameter hypothesis: an agreed parameter, a control channel corresponding to the reference signal The second acquisition module is configured to acquire channel state information of the reference signal according to the control channel transmission parameter hypothesis.

According to another embodiment of the present disclosure, there is also provided a management apparatus of a channel state detection counter, comprising: an execution module configured to perform a predetermined operation on a channel state detection counter when a predetermined event is detected.

According to another embodiment of the present disclosure, there is also provided a channel state information feedback device, comprising: a transmitting module configured to send signaling information on a dynamically scheduled channel or signal, wherein the signaling information includes a channel state Information; wherein the dynamically scheduled channel or signal is scheduled by physical downlink control information.

According to another embodiment of the present disclosure, an information status information feedback apparatus is further provided, including: a third determining module configured to determine a port subset of one measurement reference signal resource corresponding to each layer number; a feedback module, configured Precoding matrix indication information obtained based on the port subset is fed back.

According to still another embodiment of the present disclosure, there is also provided a storage medium having stored therein a computer program, wherein the computer program is configured to perform the steps of any one of the method embodiments described above at runtime.

According to still another embodiment of the present disclosure, there is also provided an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being configured to execute the computer program to perform any of the above The steps in the method embodiments.

According to the embodiment of the present disclosure, the channel state information corresponding to the reference signal is obtained according to the parameter of the control channel resource, and the technical solution of the lack of acquiring the channel state information or the feedback channel state information in the NR in the related art is solved by using the foregoing technical solution. A scheme for acquiring channel state information suitable for NR is given.

DRAWINGS

The accompanying drawings, which are set forth in the claims In the drawing:

1 is a flowchart of a channel state information acquisition method according to an embodiment of the present disclosure;

2 is a first schematic diagram 1 of detecting proprietary control information in three time units in a predetermined time window according to a fourth embodiment of the present disclosure;

3 is a second schematic diagram of detecting proprietary control information in three time units in a predetermined time window according to a fourth embodiment of the present disclosure;

4 is a schematic diagram of detecting proprietary control information in consecutive 3 time units in a predetermined time window according to a specific embodiment 4 of the present disclosure.

Detailed ways

The present disclosure will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second", and the like in the specification and claims of the present disclosure are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Embodiment 1

A mobile communication network (including but not limited to a 5G mobile communication network) is provided in the embodiment of the present application, and the network architecture of the network may include a network side device (for example, a base station) and a terminal. In this embodiment, an information transmission method that can be run on the network architecture is provided. It should be noted that the operating environment of the foregoing information transmission method provided in the embodiment of the present application is not limited to the foregoing network architecture.

In this embodiment, a channel state information acquisition method is provided in the foregoing network architecture. FIG. 1 is a flowchart of a channel state information acquisition method according to an embodiment of the present disclosure. As shown in FIG. 1 , the process includes the following steps. :

Step S102, determining a control channel resource corresponding to the reference signal;

Step S104: Acquire channel state information corresponding to the reference signal according to the parameter of the control channel resource.

Through the above steps, the problem of the technical solution for acquiring channel state information or feedback channel state information in the NR system is solved in the related art, and the related art lacks how to accurately predict the control channel by detecting the reference signal in the NR system. The problem of performance gives a scheme for acquiring channel state information for new wireless.

It should be added that there is a Quasi-co-loaction (QCL) relationship between the reference signal and the demodulation reference signal of the control channel resource, or the base station informs the office through other explicit signaling. The control channel resource corresponding to the reference signal, that is, the first signaling information is received, where the first signaling information includes the control channel resource corresponding to the reference signal. Or the base station notifies the reference signal corresponding to the control channel resource by other explicit signaling, that is, receives the second signaling information, where the second signaling information includes the reference signal corresponding to the control channel resource.

Optionally, the execution body of the foregoing steps may be a base station, a terminal, or the like, but is not limited thereto.

Optionally, the execution order of step S102 and step S104 is interchangeable, that is, step S104 may be performed first, and then S102 is performed.

In practical applications, the reference signal may include at least one of the following:

Measuring reference signal; demodulating reference signal; synchronizing signal.

Optionally, the acquiring, according to the parameter of the control channel resource, the channel state information corresponding to the reference signal includes: when a reference signal is allowed to correspond to different control channel resources at different times, according to parameters of the different control information resources, Obtaining channel state information corresponding to the reference signal at different times.

Optionally, the obtaining the channel state information corresponding to the reference signal according to the parameter of the control channel resource includes: obtaining a transmission parameter hypothesis of the physical downlink control channel according to the parameter of the control channel resource; and obtaining a hypothesis according to the transmission parameter hypothesis The physical downlink control channel block error rate (in English expressed as Hypothetical PDCCH BLER); the channel state information is obtained according to the assumed physical downlink control channel block error rate.

It is to be noted that, according to the transmission parameter hypothesis and the channel quality measured according to the reference signal, the assumed physical downlink control channel block error rate is determined according to the assumed physical downlink control channel block error rate and a preset rule or a formula, such as determining channel state information according to the relationship between the physical downlink control channel block error rate and a predetermined threshold, the channel state information may indicate that the channel state is good or bad, that is, the channel state information is used to indicate that the reference is used. The reliability of the signal and the parameters of the control channel resource when transmitting the physical downlink control channel is in a good state or the reliability is in a bad state.

Optionally, the acquiring, according to the parameter of the control channel resource, the channel state information corresponding to the reference signal includes: when the reference signal corresponds to a control channel resource set, according to the parameter corresponding to the control channel resource set Obtaining channel state information corresponding to the reference signal; when the reference signal corresponds to a control channel resource set, each control channel resource in the control channel resource set corresponds to a channel quality, according to the control channel resource And acquiring, by the plurality of channel qualities corresponding to the multiple control channel resources in the set, channel state information corresponding to the reference signal; and when the reference signal corresponds to a control channel resource set, each control channel in the control channel resource set The resource corresponds to a channel state detection counter, and acquires channel state information corresponding to the reference signal according to multiple channel state detection counters corresponding to multiple control channels in the control channel resource set; wherein the control channel resource set includes One or more control channel resources .

Optionally, the predetermined control channel resource is a control channel resource having the lowest control channel resource identification number in the control channel resource set.

Optionally, the method further includes one of the following:

When the reference signal is associated with a control channel resource set, obtaining the channel state information corresponding to the reference signal according to the parameter corresponding to the control channel resource set includes: determining that the parameter corresponding to the control channel resource set is the Obtaining a parameter corresponding to the predetermined control channel resource in the control channel resource set, and acquiring channel state information corresponding to the reference signal according to the parameter corresponding to the predetermined control channel resource;

When the reference signal is associated with a control channel resource set, obtaining the channel state information corresponding to the reference signal according to the parameter corresponding to the control channel resource set includes: determining that the parameter corresponding to the control channel resource set is And obtaining, by the parameter set of the parameters of each control channel resource, the parameter that satisfies the first predetermined condition, according to the parameter that satisfies the first predetermined condition, acquiring channel state information corresponding to the reference signal;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel qualities corresponding to the multiple control channel resources in the control channel resource set includes: determining, according to the multiple channel quality corresponding to the multiple control channel resources in the control channel resource set Whether the judgment result of the second predetermined condition is satisfied, and channel state information of the reference signal is obtained;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes: corresponding to multiple control channel resources in the control channel resource set Whether the counter satisfies the judgment result of the third predetermined condition, and obtains channel state information of the reference signal;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes: corresponding to multiple control channel resources in the control channel resource set a minimum value among the counters, obtaining channel state information of the reference signal;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes: corresponding to multiple control channel resources in the control channel resource set The maximum value in the counters gives the channel state information of the reference signal.

Optionally, the method further includes: at least one of: detecting a control channel on the control channel resource; acquiring the channel state information corresponding to the reference signal according to the parameter of the control channel resource, and acquiring the received signaling information The parameters of the control channel resource.

Optionally, the obtaining the channel state information corresponding to the reference signal according to the parameter of the control channel resource includes: setting a channel state detection counter corresponding to the reference signal according to the channel quality corresponding to the reference signal, according to the channel state The detection counter determines channel state information corresponding to the reference signal; wherein the channel state detection counter includes at least one of: a QCC parameter information of the control channel resource is reconfigured once, and the channel state detection counter is cleared once Zero; wherein the QCL parameter of the control channel indicates a reference signal that satisfies a quasi-co-located QCL relationship with a demodulation reference signal of the control channel, and the two reference signals in the present application satisfy a QCL relationship, indicating a channel of the reference signal The large-scale characteristic can be obtained from large-scale information of another reference signal, wherein the large-scale information includes at least one of the following: Doppler shift, Doppler spread, and average delay ( Average delay), delay spread, airspace receive parameters (Spatial) Rx Parameter);

A quasi-co-location reference (QCL reference) signal in the QCL parameter of the control channel resource is changed, and the channel state detection counter is cleared once.

The control channel resource set includes one or more control channel resources. When the reference signal is associated with a control channel resource set, each control channel resource in the control channel resource set corresponds to a channel state detection counter, and corresponding to multiple control channels in the control channel resource set. The channel state detection counter acquires channel state information corresponding to the reference signal.

Obtaining channel state information corresponding to the reference signal by using multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes one of the following:

Obtaining channel state information of the reference signal according to whether a plurality of counters corresponding to the plurality of control channel resources in the control channel resource set meet a third predetermined condition;

Obtaining channel state information of the reference signal according to a minimum value of the plurality of counters corresponding to the plurality of control channel resources in the control channel resource set;

And obtaining channel state information of the reference signal according to a maximum value of the plurality of counters corresponding to the plurality of control channel resources in the control channel resource set.

Optionally, the obtaining the channel state information corresponding to the reference signal according to the parameter of the control channel resource includes: setting a channel state detection counter corresponding to the reference signal according to the channel quality corresponding to the reference signal, according to the channel state The detection counter determines channel state information corresponding to the reference signal, where the channel state detection counter includes at least one of the following: a configuration of the control channel resource occurs once, and the channel state detection counter is cleared once The configuration information of the reference signal is reconfigured once, and the channel state detection counter is cleared once.

Optionally, after acquiring channel state information corresponding to the reference signal, the method further includes: feeding back the channel state information when determining that the channel state information meets a fourth predetermined condition.

Optionally, when it is required to detect channel state information of multiple reference signals, the method further includes at least one of the following:

Obtaining channel state information of each reference signal according to a control channel resource or a control channel resource set corresponding to each reference signal, where each reference signal corresponds to one control channel resource or one control channel resource set;

When a control channel resource corresponds to a plurality of reference signals, determining, according to the at least one of the agreement rule and the signaling information, a mapping mode between the demodulation reference signal of the control channel and the plurality of reference signals, acquiring the Channel state information corresponding to multiple reference signals;

The channel state information corresponding to the plurality of reference signals is obtained according to the mapping relationship by using at least one mapping relationship between the layer and the plurality of reference signals.

Determining a mapping relationship between the control channel demodulation reference signal and the plurality of reference signals by using a convention rule and/or signaling information, and obtaining channel state information corresponding to the plurality of reference signals according to the mapping relationship.

It can be seen from the above description that when multiple reference signals need to be detected, the control channel resources corresponding to different reference signals may be different, so that the transmission parameter assumptions of the physical downlink control channels corresponding to different reference signals may be different, according to each The transmission parameter of the physical downlink control channel corresponding to the reference signal assumes that the Hypothetical PDCCH BLER corresponding to each reference signal is obtained, thereby obtaining channel state information.

Optionally, the parameter of the control channel resource includes at least one of the following:

Degree of polymerization

Downlink control information format information; for example, a type of DCI format that needs to be detected on the control channel resource;

The number of candidate control channels; for example, the number of candidate control channels to be detected on a degree of aggregation on the control channel resource;

a mapping manner of a control channel element (CCE) to a resource group (Resource Group, REG for short);

Precoding block granularity;

Frequency domain information, such as frequency domain bandwidth information corresponding to the control channel resource;

The time domain information, for example, the control channel resource corresponds to at least one of the following information: time domain symbol number information, slot information in which the slot is located;

The size of the resource unit (bundle size);

Offset when interleaving in units of bundle sizes of resource units;

Transmission control indicator (TCI);

And a reference signal that satisfies a QCL relationship with a demodulation reference signal of the control channel resource;

Whether the predetermined information is included in the control information included in the control channel resource;

a power difference between the reference signal and control information in the control channel resource;

a power difference between the reference signal and a demodulation reference signal of the control channel resource;

a power difference between the control information in the control channel resource and the demodulation reference signal of the control channel resource;

Cycle prefix (Cyclic Prefix, CP for short);

Subcarrier spacing;

Demodulating related information of the reference signal (the related information may include a transmission mode information of the demodulation reference signal, and a port number information of the demodulation reference signal);

Control the transmission mode of channel information.

According to another embodiment of the present disclosure, a method for acquiring channel state information is further provided, the method comprising the following steps:

Step 1: determining, according to at least one of the following, a control channel transmission parameter hypothesis: an agreed parameter, a parameter of a control channel resource corresponding to the reference signal;

Step 2: Obtain channel state information of the reference signal according to the control channel transmission parameter hypothesis.

With the above technical solution, the problem of the technical solution for acquiring channel state information or feedback channel state information in the NR is solved in the related art, and the related art lacks how to detect the beam-based beam in the NR based on beam transmission. The performance problem of the transmitted control channel, such as how to accurately predict the performance problem of the control channel by detecting the reference signal, gives a scheme for obtaining channel state information suitable for NR.

Optionally, the parameter includes at least one of the following parameters:

Degree of aggregation; downlink control information format indication information; number of candidate control channels; CCE to REG mapping; precoding block granularity; frequency domain information; time domain information; resource unit bundle size, with resource unit bundle size The offset when the unit performs interleaving; the TCI; and the reference signal of the demodulation reference signal of the control channel resource satisfying the QCL relationship; whether the control information included in the control channel resource includes a predetermined domain, the reference signal and the a power difference between control information in a control channel resource; a power difference between the reference signal and a demodulation reference signal of the control channel resource; control information in the control channel resource and the control channel resource The power difference between the demodulation reference signals; the CP length; the subcarrier spacing, the transmission mode of the demodulation reference signal; the transmission mode of the control channel information; the demodulation reference signal of the control channel to the Y reference signals Mapping relationship; a mapping relationship between layers to Y reference signals, where Y is a positive integer.

Optionally, the control channel resource includes at least one of the following:

Detecting a control channel on the control channel resource;

Obtaining parameters of the control channel resource by using the received signaling information, before acquiring the channel state information corresponding to the reference signal according to the parameter of the control channel resource.

Optionally, determining the control channel transmission parameter hypothesis includes at least one of the following according to the agreed parameters and/or parameters of the control channel resource corresponding to the reference signal:

When the reference signal does not have a corresponding control channel resource, the transmission parameter hypothesis of the control channel is determined by using the agreed parameter, wherein the agreed parameter includes at least one of the following parameters: the reference signal and the control a power difference between control information in a channel resource; a power difference between the reference signal and a demodulation reference signal of the control channel resource; control information in the control channel resource and a solution to the control channel resource Adjusting a power difference between reference signals; a transmission mode of control channel information, a mapping relationship between a demodulation reference signal of the control channel and the Y reference signals; a mapping relationship between the layers to the Y reference signals, Where Y is a positive integer;

Obtaining, according to a predetermined rule, a second transmission parameter hypothesis of the control channel according to a first parameter of a control channel resource corresponding to the reference signal;

And obtaining, according to a predetermined rule, a range of the second transmission parameter hypothesis of the control channel according to a second parameter of the control channel resource corresponding to the reference signal.

According to another embodiment of the present disclosure, a method for managing a channel state detection counter is further provided, the method comprising the following steps:

Step 1: When it is detected that a predetermined event occurs, a predetermined operation is performed on the channel state detection counter. It should be added that the channel state information indicates the relationship between the channel quality and the predetermined threshold. Here, a predetermined operation may be performed on the channel state detection counter when the predetermined event occurs, and the predetermined threshold may be configured by the base station. It is determined according to a predetermined rule, which may be referred to as a channel quality counter, or other equivalent name, and does not affect the inventiveness of the present application.

The above technical solution solves the problem that the technical solution for acquiring channel state information or feedback channel state information in the NR is lacking in the related art, and further solving the lack of how to detect the beam in the NR based on beam transmission in the related art is solved. The problem of performance gives a scheme for obtaining channel state information for NR.

Optionally, the predetermined operation includes one of: the channel state detection counter is cleared; the channel state detection counter is subtracted by a predetermined number; after the predetermined event occurs, the channel state detection counter is prohibited from continuously counting .

Optionally, the predetermined event includes at least one of the following events:

The parameters of the control channel resources are reconfigured;

Successfully detecting control information on the physical control channel;

Successfully detecting control information on a physical control channel of at least N time units;

Successfully detecting control information on a physical control channel of at least M time units consecutively;

Successful detection of proprietary control information on the physical control channel;

Channel quality of the reference signal in at least L consecutive evaluation windows is higher than a first predetermined threshold;

Channel quality corresponding to at least P evaluation windows of the reference signal in a predetermined time window being higher than a second predetermined threshold;

The configuration information of the reference signal is reconfigured;

Channel quality at least Q reference signals appearing in the predetermined reference signal set is higher than a third predetermined threshold;

The channel quality is obtained according to the reference signal, and one of the evaluation windows corresponds to a primary channel estimation of the reference signal; and the N, M, L, P, and Q are positive integers.

Optionally, the predetermined event is that the parameter reconfiguration of the control channel resource includes at least one of: the QCL parameter of the control channel resource is reconfigured; and the parameter of the control channel resource corresponding to the channel state detection counter is heavy. Match.

Optionally, the channel state detection counter includes at least one of the following:

The channel state detection counter corresponds to a reference signal;

The channel state detection counter corresponds to a reference signal set;

The channel state detection counter is a channel state counter whose channel quality is lower than a predetermined threshold;

The channel state detection counter is a counter whose channel quality is lower than a predetermined threshold.

According to another embodiment of the present disclosure, a channel state information feedback method is further provided, and the method includes the following steps:

Step 1: Send signaling information on a dynamically scheduled channel or signal, where the signaling information includes channel state information; wherein the dynamically scheduled channel or signal is scheduled by physical downlink control information.

The above technical solution solves the problem of the technical solution for lacking acquisition of channel state information or feedback channel state information in the NR in the related art, and further solves the problem of how to quickly recover in the NR based on beam transmission in the related art. Link problem. A scheme for feedback channel state information for NR is given.

Optionally, the signaling information is used to indicate at least one of the following information:

The first information is used to indicate that the reference signal performance in the reference signal set 1 is lower than a predetermined threshold;

The second information is used to indicate that at least X reference signal qualities in the reference signal in the reference signal set 2 are higher than a predetermined threshold;

The third information is used to indicate indication information of the reference signal in the reference signal set 2 that the reference signal quality is higher than a predetermined threshold;

Fourth information, including beam recovery request information;

The fifth information is used to indicate that the beam recovery request information has been sent at least once before;

a sixth information, measuring reference signal resource request information, including measuring number of reference signal resources;

Seventh information, measuring reference signal resource type request information, such as the measurement reference signal is used for transmitting beam training, and/or receiving beam training, such as requesting multiple measurement reference signal resources when requesting for transmitting beam training There is no QCL relationship between them, or the transmit beams of the base stations corresponding to the multiple measurement reference signals requested are the same. When multiple requested reference signal resources are used for receive beam training, QCL exists between the requested multiple measurement reference signal resources. The relationship, or the transmitted beam of the base station corresponding to the plurality of measurement reference signal resources requested, is different. The type information may also be an uplink measurement reference signal and a downlink measurement reference signal.

Wherein X is a positive integer.

Optionally, transmitting signaling information on the dynamically scheduled channel or signal includes at least one of the following:

Transmitting the signaling information on the dynamically scheduled channel or signal when the dynamically scheduled channel or signal is located in a first predetermined time unit;

Transmitting the signaling information on the dynamically scheduled channel or signal when the dynamically scheduled channel or signal is located in a first predetermined frequency domain resource;

Transmitting the signaling information on the dynamically scheduled channel or signal when the physical downlink control information is located in a second predetermined time unit;

And when the physical downlink control information is located in the second predetermined frequency domain resource, sending the signaling information on the dynamically scheduled channel or signal.

Optionally, the method includes at least one of the following: information of the first or second predetermined time unit is included in the received first signaling information; information of the first or second predetermined frequency domain resource Included in the received second signaling information.

Optionally, the channel includes at least one of: an uplink physical data channel, an uplink aperiodic control channel, and an acknowledgment (ACK) answer/negative answer (NACK) uplink control channel corresponding to the downlink data channel;

The signal includes at least: an aperiodic SRS.

According to another embodiment of the present disclosure, an information status information feedback method is further provided, the method comprising the following steps:

Step 1: Determine a port subset of a measurement reference signal resource corresponding to each layer number (for example, one measurement reference signal resource has 8 ports, and layer 1 corresponds to 2 ports of the reference signal resource, and layer 2 corresponds to this Reference port 4 ports of the signal resource, layer 3 corresponds to 8 ports of the reference signal resource);

Step 2: The precoding matrix indication information obtained by using the port subset is fed back. (It should be noted that the precoding matrix indication information is one type of channel state information, and the precoding matrix indication information may also be referred to as PMI information. .

The above technical solution solves the problem of the technical solution for lacking acquisition of channel state information or feedback channel state information in the NR in the related art, and further solves the lack of different layers in the NR based on beam transmission in the related art. How to obtain the precoding matrix when the corresponding beam combination is different. A scheme for feedback channel state information for NR is given.

Optionally, determining a port subset of one measurement reference signal resource corresponding to each layer number includes at least one of the following:

The port subset corresponding to each layer number is included in the received signaling information;

The subset of ports corresponding to each layer number is obtained by a convention rule;

The number of ports included in the port subset corresponding to the number of layers is greater than or equal to the number of layers (for example, the port subset corresponding to the layer number 3 includes 8 ports).

Optionally, the precoding matrix indication information obtained by the feedback based on the port subset includes at least one of: a feedback rank (RI) and precoding matrix indication information corresponding to the RI; and the measurement reference signal resource For each layer supported, the feedback is based on the precoding matrix indication information obtained from the port subset corresponding to the layer number.

The detailed description is made below in conjunction with the specific embodiments of the present disclosure.

Specific embodiment 1

In the beam recovery process, a reference signal related to the control channel needs to be detected, and channel quality detection information is obtained according to the quality of the reference signal.

Specifically, in the beam recovery process, the terminal needs to detect a channel state information reference signal (CSI-RS)/SSB (which can be understood as a synchronization signal)/demodulation reference signal (Demodulation Reference Signal) associated with the control channel resource CORESET. DMRS), that is, the reference signal, obtains a Signal Interference and Noise Ratio (SINR) according to the CSI-RS/SSB/DMRS, obtains a Hypothetical PDCCH BLER according to the SINR, and obtains a Hypothetical PDCCH BLER according to the SINR, The Hypothetical PDCCH BLER has different transmission parameters. As a result, the obtained Hypothetical PDCCH BLER will be different. Therefore, before obtaining the Hypothetical PDCCH BLER, the assumption of the transmission parameters of the PDCCH needs to be confirmed.

In this embodiment, the terminal first determines a control channel resource associated with the reference signal, and obtains a PDCCH transmission parameter hypothesis according to the parameter configuration information of the control channel resource, and obtains a Hypothetical PDCCH BLER according to the transmission parameter hypothesis of the PDCCH. The one control channel resource may be one of the following: a CORESET (control resource set), a search space, a candidate control channel, a CCE, a REG, a REG bundle, and a DCI format.

Specifically, for example, the terminal needs to detect the CSI-RS1, and the CSI-RS1 and the CORESET1 are associated. For example, there is a QCL relationship between the DMRS and the CSI-RS1 sent in the CORESET1, for example, the TCI-StatesPDCCH parameter in the configuration information about the CORESET in the NR. (That is, the TCI domain, this TCI domain is configured with relevant parameters of CORESET, instead of the TCI domain included in the DCI transmitted in the CORESET, and the TCI domain included in the DCI is used to indicate the channel or signal QCL relationship of the DCI scheduling. Information such as the TCI field in the DCI is used to indicate the QCL relationship of the PDCCH/CSI-RS/SRS/PUSCH.) The QCL relationship exists between the DMRS and the CSI-RS1 transmitted in the CORESET1, or the base station explicitly configures the CSI-RS1 and the CORESET1. There is an association between the terminal and the SINR according to the CSI-RS1, and the Hypothetical PDCCH BLER is further obtained according to the transmission parameter assumption of the PDCCH in Table 1. Table 1 is a schematic table 1 according to the specific embodiment 1, according to whether the Hypothetical PDCCH BLER is lower than a predetermined valve. Determining whether the channel quality corresponding to the reference signal is Qin. For example, when the Hypothetical PDCCH BLER is less than 2% based on the transmission parameter assumption of Table 1, determining the reference signal Qin channel quality state. Here, the larger the BLER is, the worse the corresponding channel quality is. It can be seen from Table 1 that the transmission parameter assumption for the PDCCH is obtained according to the configuration parameter of CORESET1 corresponding to CSI-RS1. The degree of aggregation corresponding to the one CORESET is a degree of aggregation in which the number of candidate control channels of the CORESET is greater than 0. For each CORESET, a candidate control channel of each degree of aggregation corresponding to the CORESET is configured, and when the CORESET corresponds to one When the number of candidate control channels of the degree of aggregation is 0, the degree of aggregation does not belong to the degree of aggregation corresponding to the CORESET. Or according to the configuration information of the search space corresponding to the CORESET, the degree of aggregation corresponding to the CORESET is obtained, for example, CORESET corresponds to a search space, and the configuration information of the search space includes each degree of aggregation. The number of candidate control channels, and the degree of aggregation of the number of candidate channels greater than 0 is the degree of aggregation corresponding to the CORESET. The number of candidate channel numbers corresponding to CORESET1 can be configured in the configuration information of the search space included in the CORESET.

Table 1

The mapping mode of the CCE-to-REG includes interleaved and non-interleaved. The REGs included in the CORESET are numbered, and then a Bundle is formed by consecutive L REGs, that is, the Bundle i corresponds to {REG i*L, REG i*L+ 1,..., REG i*L+L-1}, the Bundle corresponding to CCEj is {f(N*j/L), f(N*j/L+1),...,f(N* j/L+N/L-1)}, where N is the number of REGs included in one CCE.

When the mapping of CCE-to-REG is non-interleaved, L=6, f(j)=j. When the mapping of CCE-to-REG is interleaved, f(j) satisfies the following formula:

j=cR+r;

r=0,1,...,R-1;

c=0,1,...,C-1

Where R belongs to {2, 3, 6} is configured by the upper layer. Or R belongs to a common divisor of N greater than 1, ie, N can be an integer R, and R is an integer greater than one. The n _{shift is obtained} according to the cell identification number or obtained according to the high layer configuration information. The mapping mode of CCE-to-REG of CORESET1 can be determined by the configuration parameter CORESET-CCE-to-REG-mapping-type in NR.

The Bundle size is L in the above CCE-to-REG description, that is, a Bundle block includes L REGs, which can be determined by the configuration parameter CORESET-REG-bundle-size in the NR. The bundle size offset is the n _shift in the above CCE-to-REG description, which can be determined by the NR configuration parameter CORESET-shift-index. The number of time domain symbols corresponding to CORESET1 can be determined by the configuration parameter CORESET-time-duration in the NR current protocol. The DMRS is sent in at least one of the following ways: the DMRS is only sent in the DCI, the DMRS is sent in the CORESET where the DCI is located, the DMRS is only sent in the part of the REG included in the DCI, and the DMRS is sent in all the REGs included in the DCI, for example, The CORESET-precoder-granularity in the NR determines the transmission mode of the DMRS;

The above is the Hypothetical PDCCH BLER corresponding to the CSI-RS1 according to Table 1, and further determines whether the Hypothetical PDCCH BLER is lower than 2% (2% is only an example, which may be other predetermined thresholds), and further determines whether the channel quality corresponding to the CSI-RS1 belongs to The Qin mode, such as the Hypothetical PDCCH BLER less than 2%, is the Qin mode. That is, when the base station transmits the PDCCH based on the CSI-RS1, it can obtain relatively high reliability.

Further, the terminal can obtain the Hypothetical PDCCH BLER corresponding to the CSI-RS1 according to Table 2, and Table 2 is the schematic table 2 according to the specific embodiment 1, and further determine whether the Hypothetical PDCCH BLER is higher than 10% (10% is only an example, and may be other The predetermined threshold is determined to determine whether the channel quality corresponding to the CSI-RS1 belongs to the Qout mode. For example, if the Hypothetical PDCCH BLER is higher than 10%, the Qout mode is adopted. That is, when the base station transmits the PDCCH based on the CSI-RS1, the reliability is relatively poor.

Further, when the terminal determines that the channel quality of the CSI-RS1 satisfies the Qin mode, the information is fed back to the base station, or the information is fed back to the upper layer of the terminal. When the terminal determines that the channel quality of the CSI-RS1 satisfies the Qout mode, the information is fed back to the base station, or the information is fed back to the upper layer of the terminal.

Table 2

In the foregoing Tables 1 and 2, when a CORESET corresponds to a plurality of values for a type of parameter value, the above embodiment takes a maximum or a minimum value, for example, one CORESET corresponds to a plurality of degrees of polymerization, and Table 1 takes the lowest degree of polymerization. Table 2 is the highest degree of polymerization. The foregoing embodiment is only an example, and the other embodiments do not exclude other values, such as taking the first degree of aggregation, where the number of candidate channels corresponding to the first degree of aggregation is the smallest. Or taking the second degree of polymerization, where the number of candidate control channels corresponding to the second degree of polymerization is the largest.

In the above embodiment, the transmission parameter assumptions for the PDCCH are obtained according to the parameters of the control channel resource corresponding to the measurement reference signal, and the present embodiment does not exclude that the transmission parameter assumption for the PDCCH is partially based on the measurement reference signal. The parameters of the control channel resource are obtained, and some are obtained according to the agreed value. For example, some of the following parameters are obtained according to parameters of the control channel resource corresponding to the measurement reference signal, and some are agreed values. The parameter includes at least one or more of the following parameters: a degree of aggregation, a DCI format, a number of candidate control channels, a mapping manner of a CCE to a resource group (indicated by a resource element group in English), a precoding block granularity, The frequency domain information, the time domain information, the bundle size, the offset when the bundle size is interleaved, and the TCI, whether the control information included in the control channel resource includes a predetermined domain (such as the control information included in the control channel resource) Whether there is a TCI domain, of course, other specific domains, the power difference between the reference signal and the control information in the control channel resource (the power of the control channel resource is the transmission control information in the control channel resource) Power between resources), a power difference between the reference signal and a demodulation reference signal of the control channel resource, between control information in the control channel resource and a demodulation reference signal of the control channel resource Power difference, CP length, subcarrier spacing.

When the terminal needs to detect multiple reference signals, the control channel resources corresponding to different reference signals may be different, so that the PDCCH transmission parameter assumptions corresponding to different reference signals may be different, and the terminal obtains each according to the PDCCH transmission parameter hypothesis corresponding to each reference signal. The Hypothetical PDCCH BLER corresponding to the reference signal.

Specific embodiment 2

In this embodiment, similar to the specific embodiment 1, the terminal acquires channel quality detection information corresponding to the reference signal according to the control channel resource corresponding to the reference signal. This embodiment describes how to obtain channel quality detection information corresponding to the reference signal when the one reference signal corresponds to more than one control channel resource.

And obtaining a PDCCH transmission parameter hypothesis according to the parameters of the multiple control resources corresponding to the one reference signal, and obtaining a Hypothetical PDCCH BLER according to the transmission parameter hypothesis of the PDCCH. The one control channel resource may be one of: a CORESET (control resource set), a search space, a candidate control channel, a CCE, a REG, a REG bundle, and a DCI format.

Specifically, for example, CSI-RS1 corresponds to CORESET1 and CORESET2. For example, in the QCL configuration parameter of CORESET1, DMRS and CSI-RS1 in CORESET1 are configured to satisfy the QCL relationship for one type of channel characteristics, and CORESET2 is also configured in the QCL configuration parameter of CORESET2. The DMRS and CSI-RS1 satisfy the QCL relationship with respect to a type of channel characteristic. For example, the QCL relationship configuration in the CORESET in the NR is determined by the CORESET configuration parameter TCI-StatesPDCCH field.

Of course, CSI-RS1 can also be notified by other explicit signaling to the set of {CORESET1, CORESET2}.

At this time, when the Hypothetical PDCCH BLER is acquired according to the CSI-RS1, the transmission parameter assumption of the PDCCH needs to be jointly determined according to the parameters of CORESET1 and CORESET2. That is, it is necessary to jointly determine the PDCCH transmission parameter hypothesis according to the parameters of the plurality of control channel resources of the control channel resource set corresponding to the reference signal.

For example, the terminal obtains the Hypothetical PDCCH BLER corresponding to the CSI-RS1 according to Table 3. Table 3 is the schematic table 1 according to the specific embodiment 2, and further determines whether the Hypothetical PDCCH BLER is lower than 2% (2% is only an example, and may be other predetermined thresholds. And determining whether the channel quality corresponding to the CSI-RS1 belongs to the Qin mode. For example, if the Hypothetical PDCCH BLER is less than 2%, it is a Qin mode, that is, when the base station transmits the PDCCH based on the CSI-RS1, a relatively high reliability can be obtained.

table 3

The CORESET set is a set of CORESETs corresponding to the reference signal. For example, as described above, {CORSET1, CORESET2} is a CORESET set corresponding to the CSI-RS1, and the parameter corresponding to the CORESET set can be obtained by one of the following methods. :

Manner 1: According to the CORESET parameter corresponding to the predetermined CORESETID in the CORESET set, for example, the precoding resource granularity corresponding to the CORESET set is the precoding resource granularity corresponding to the CORESET corresponding to the lowest CORESETID (or the highest CORESETID) in the CORESET set; the CORESET set corresponds to Similar parameters can be used for other parameters, and will not be described here.

Manner 2: Find all parameters that satisfy the predetermined condition according to all the same parameters corresponding to all CORESETs in the CORESET set. For example, the precoding granularity corresponding to the CORESET set is the precoding resource granularity with the smallest size among the plurality of precoding resource granularities corresponding to each CORESET in the CORESET set.

Or, for example, the degree of aggregation corresponding to the CORESET set is the lowest degree of aggregation in the set of aggregation degrees corresponding to each CORESET in the CORESET set. Similar parameters can be used for other parameters corresponding to the CORESET set, and are not described here.

Further, the terminal can obtain the Hypothetical PDCCH BLER corresponding to the CSI-RS1 according to Table 4, and Table 4 is the schematic table 2 according to the specific embodiment 2, and further determine whether the Hypothetical PDCCH BLER is higher than 10% (10% is only an example, and may be other The threshold value is determined to determine whether the channel quality corresponding to the CSI-RS1 belongs to the Qout mode. For example, if the Hypothetical PDCCH BLER is higher than 10%, the Qout mode is used, that is, when the base station transmits the PDCCH based on the CSI-RS1, the reliability is relatively poor.

Table 4

Specific embodiment 3

Determining a control channel resource set corresponding to a reference signal, where the control channel resource set includes one or more control channel resources;

Each control channel resource in the control channel resource set corresponds to one counter; or each control channel resource in the control channel resource set corresponds to one channel quality.

Channel quality detection information corresponding to the one reference signal is obtained according to whether the plurality of counters satisfy a predetermined condition in a predetermined time window. Or obtaining a channel quality corresponding to the one reference signal according to a channel quality corresponding to the multiple control channel resources in the channel resource set.

Specifically, for example, CSI-RS1 corresponds to CORESET1 and CORESET2. For example, in the QCL configuration parameter of CORESET1, DMRS and CSI-RS1 in CORESET1 are configured to satisfy the QCL relationship for one type of channel characteristics, and CORESET2 is also configured in the QCL configuration parameter of CORESET2. The DMRS and CSI-RS1 satisfy the QCL relationship with respect to a type of channel characteristic, wherein the QCL relationship configuration in the CORESET is determined by the CORESET configuration parameter TCI-StatesPDCCH field.

At this time, according to the CSI-RS1, one SINR is obtained, and a Hypothetical PDCCH BLER is obtained based on the parameter of CORESET1, for example, BLER1, and then a Hypothetical PDCCH BLER is obtained according to the CINR-RS1 SINR, and based on the CORESET2 parameter, for example, BLER2. .

At this time, the channel quality information of the CSI-RS1 can be obtained in one of the following ways:

Manner 1: When BLER1 is higher than the first predetermined threshold and BLER2 is also higher than the first predetermined threshold, it is determined that the channel quality of the reference signal in the current evaluation belongs to Qout, for example, the counter of Qout of the reference signal is incremented by one,

Or, when at least one of the BLER1 and the BLER2 is lower than the second predetermined threshold, determining that the channel quality of the reference signal in the current evaluation is Qin, for example, the Qin counter corresponding to the reference signal is incremented by 1.

Manner 2: For an evaluation of CSI-RS1, based on the relationship between BLER1 and the first predetermined threshold, the channel quality judgment result corresponding to CORESET1 is obtained. For example, when BLER1 is higher than the first predetermined threshold, the Qout counter corresponding to CORESET1 is incremented by one ( Referred to as counter 1), based on the relationship between BLER2 and the first predetermined threshold, the channel quality judgment result corresponding to CORESET2 is obtained. For example, when BLER2 is higher than the first predetermined threshold, the Qout counter corresponding to CORESET2 is incremented by 1 (referred to as counter 2). . Then, according to a predetermined time window (in the predetermined window, including one or more CSI-RS1 channel evaluations), whether two counters corresponding to the CORESET1 and the CORESET2 satisfy a predetermined condition to obtain a channel quality judgment of the reference signal As a result, for example, only the counter 1 and the counter 2 are greater than a predetermined number of times, and the channel quality of the reference signal is judged to be Qout.

Or for an evaluation of CSI-RS1, based on the relationship between BLER1 and the second predetermined threshold, the channel quality judgment result corresponding to CORESET1 is obtained. For example, when BLER1 is lower than the second predetermined threshold, the Qin counter corresponding to CORESET1 is incremented by one (referred to as The counter 3) obtains the channel quality judgment result corresponding to CORESET2 based on the relationship between the BLER2 and the second predetermined threshold. For example, when the BLER2 is lower than the first predetermined threshold, the Qin counter corresponding to the CORESET2 is incremented by one (referred to as the counter 4). Then, according to a predetermined time window (in the predetermined window, including one or more CSI-RS1 channel evaluations), whether two counters corresponding to the CORESET1 and the CORESET2 satisfy a predetermined condition to obtain a channel quality judgment of the reference signal As a result, for example, the counter 3 and the counter 4 have at least one counter more than a predetermined number of times, and the channel quality of the reference signal is determined to be Qin.

At this time, when the Hypothetical PDCCH BLER is acquired according to the CSI-RS1, the transmission parameter assumption of the PDCCH needs to be jointly determined according to the parameters of CORESET1 and CORESET2. That is, it is necessary to jointly determine the PDCCH transmission parameter hypothesis according to the parameters of the plurality of control channel resources of the control channel resource set corresponding to the reference signal. Or the plurality of control channel resources corresponding to the CSI-RS1 respectively correspond to one channel quality, or respectively correspond to one channel quality counter, and the CSI-RS1 corresponding to the CSI-RS1 is obtained according to whether a plurality of channel qualities corresponding to the plurality of control channel resources satisfy a predetermined condition. The channel quality detection information is obtained, or the channel quality detection information corresponding to the CSI-RS1 is obtained according to whether a plurality of channel quality counters corresponding to the plurality of control channel resources satisfy a predetermined condition.

Specific embodiment 4

In this embodiment, the terminal performs beam detection, detects whether the signal performance in the reference signal set 1 is lower than a fourth predetermined value, and/or detects whether the signal performance in the reference signal set 2 is higher than a fifth predetermined value. It is detected that the performance of each reference signal in the reference signal set 1 is lower than the fourth predetermined value, and the terminal considers that one beam failure occurs, and adds 1 to the beam failure counter. When the counter is greater than the predetermined number, the terminal reports the beam recovery request information to the base station, where the beam recovery request information includes: an event in which the beam performance in the reference signal set 1 is lower than the fourth predetermined value occurs at least a predetermined number of times, and/or reference The performance of at least Q reference signals in signal set 2 is higher than a fifth predetermined value, and/or the best performing reference signal index information in the reference signal set 2 having a performance higher than a fifth predetermined value. Q is a positive integer, such as Q = 1. In this embodiment, when a predetermined event occurs, a predetermined operation of the beam failure counter is required. The predetermined operation includes: clearing the beam failure counter, the beam failure counter minus a predetermined number; after the predetermined event occurs, the beam failure counter cannot be continuously counted.

The predetermined event includes at least one of the following events:

Event 1: The parameters of the control channel resources are reconfigured, and the parameters of the control channel resources that the terminal needs to detect are reconfigured, and the beam failure counter performs the above predetermined operation, and further, when the terminal needs to detect the reconfiguration of the parameters of the dedicated control channel resources, Then, the beam failure counter performs the above predetermined operation. For example, the control channel is detected on the CORESET1 resource. Now, the base station configuration terminal does not need to detect on the CORESET1, and instead detects the control channel on the CORESET2, the beam failure counter is subjected to the above predetermined operation. Or the terminal detects the control channel on CORESET1, and now configures some parameters of the control channel (such as reconfiguring the QCL information corresponding to CORESET1, and/or reconfiguring the degree of aggregation information corresponding to CORESET1, and/or reconfiguring the frequency domain resource corresponding to CORESET1. The information, and/or re-allocation of the time domain resource information corresponding to CORESET1, of course, may also reconfigure other parameter information of CORESET1), and then perform the above predetermined operation on the beam failure counter. Or the channel quality detection counter corresponding to the control channel resource is only subjected to the foregoing predetermined operation. Or the channel quality detection counter corresponding to the reference signal associated with the control channel resource is only subjected to the above predetermined operation.

Further, if the previously configured terminal detects CORESET1 and CORESET2, the QCL configuration field of CORESET1 configures the QCL reference signal of CORESET to be CSI-RS1, that is, there is a QCL relationship between DMRS and CSI-RS1 of CORESET1, and the QCL configuration field of CORESET2 is configured with CORESET. The QCL reference signal is CSI-RS2, the terminal detects the performance of CSI-RS1 and CSI-RS2, and CSI-RS1 and CSI-RS2 respectively correspond to a counter, and the performance of the evaluation result in the evaluation window of the measurement reference signal is lower than the predetermined threshold. The counter corresponding to the reference signal is correspondingly incremented by 1. At one time node, the beam failure counter is the minimum value of the plurality of counters corresponding to the reference signal in the reference signal set detected by the terminal. For example, at time t0, the counter value of CSI-RS1 is 1, and the counter value of CSI-RS2 is 3. At the time t0, the QCL reference signal corresponding to the QCL field of the base station configuration CORESET1 is CSI-RS3, and the terminal corresponds to CSI-RS1. The counter is cleared to 0, and Counter 1 now corresponds to CSI-RS3 and begins to recount. Or, after t0, the counter 1 corresponding to CSI-RS1 and the counter 2 of CSI-RS2 are both cleared to 0, and counter 1 is made to correspond to CSI-RS3, and the channel performance of {CSI-RS2, CSI-RS3} is now restarted.

Event 2: The control information is successfully detected on the physical control channel, and further there is a QCL relationship between the demodulation reference signal of the physical control channel and at least one of the reference signal sets 1. Further, the physical control channel is a proprietary physical control channel. The physical control channel is a PDCCH, and the physical control information is a DCI. It is also possible to successfully detect the control information on at least N time units, or to successfully detect the control information on at least M time units in succession. Or, the control information is successfully detected on at least N time units in the predetermined window, as shown in FIG. 2 or FIG. 3, and FIG. 2 is detected in three time units in a predetermined time window according to Embodiment 4 of the present disclosure. FIG. 3 is a schematic diagram 2 of detecting proprietary control information in three time units in a predetermined time window according to a specific embodiment 4 of the present disclosure; or at least consecutively in a predetermined window The control information is successfully detected on the M time units, as shown in FIG. 4, which is a schematic diagram of detecting the proprietary control information in three consecutive time units in a predetermined time window according to Embodiment 4 of the present disclosure. Where N and M are positive integers, which may be fixed values agreed by the base station and the terminal, or may be values notified by the base station to the terminal. The predetermined window may be a predetermined number of time units or a time window bounded by an agreed event.

Event 3: The channel performance of the reference signal in at least L evaluation windows consecutively is higher than a predetermined threshold. For example, for each reference signal in the reference signal set 1 corresponding to a counter, the performance in one evaluation window of the reference signal is worse than a predetermined value, the counter corresponding to the reference signal is correspondingly incremented by 1. If all the counters corresponding to all the reference signals in the reference signal set 1 are greater than a predetermined value at the predetermined time node, the beam failure counter is correspondingly incremented by 1, or at a predetermined time. The beam failure counter at the node is the minimum of the plurality of reference signal counters. For a counter corresponding to a reference signal, when a predetermined event occurs, the predetermined operation is performed as described above. Specifically, when the channel performance in at least L evaluation windows of one reference signal is higher than a predetermined threshold, the counter corresponding to the reference signal is performed. The predetermined operation is as above. Or, if the channel performance corresponding to the at least P evaluation windows of the reference signal in the predetermined time window is higher than the predetermined threshold, the counter corresponding to the reference signal is subjected to the predetermined operation as above. Where P and L are positive integers, which may be fixed values agreed by the base station and the terminal, or may be values notified by the base station to the terminal. The predetermined window may be a predetermined number of time units or a time window bounded by an agreed event.

Event 4: The configuration information of the reference signal is reconfigured. For example, the previous reference signal set 1 includes {CSI-RS1, CSI-RS2}, the CSI-RS1 corresponds to the counter 1, and the CSI-RS2 corresponds to the counter 2. The configuration reference signal set includes {CSI-RS1, CSI-RS3}, in this case, the counter 2 is cleared to 0, and the counter 2 is corresponding to the CSI-RS3, or both the counter 1 and the counter 2 are cleared to 0, and the detection is resumed {CSI-RS1, CSI -RS3}. The beam failure counter is the minimum value in counter 1 and counter 2. Or the reference signal set 1 corresponds to one beam failure counter. After the reconfiguration of the reference signal set 1, the beam failure counter performs the predetermined operation as described above.

Event 5: The channel performance of at least Q reference signals appearing in the predetermined reference signal set is higher than a predetermined threshold, for example, reference signal set 1 corresponds to one beam failure counter, and channel performance of at least Q reference signals exists in reference signal set 1 Above a predetermined threshold, the beam failure counter is subjected to a predetermined operation as described above. Or, in a predetermined time window, if at least a channel performance of the Q reference signals appears in the predetermined reference signal set is higher than a predetermined threshold, the beam failure counter is subjected to a predetermined operation as described above. Or, if the channel performance of at least consecutive Q reference signals in the predetermined reference signal set is higher than a predetermined threshold, the beam failure counter is subjected to a predetermined operation as described above. Where Q is a positive integer, which may be a fixed value agreed by the base station and the terminal, or may be a value notified by the base station to the terminal. The predetermined window may be a predetermined number of time units or a time window bounded by an agreed event.

When the beam failure counter exceeds a predetermined number, the terminal transmits predetermined indication information to the base station or the terminal to the upper layer of the terminal. The predetermined indication information includes at least one of the following: the beam performance in the reference signal set 1 is lower than the fourth predetermined value, and/or the performance of at least the Q reference signals in the reference signal set 2 is higher than the fifth predetermined The value, and/or the performance of the signal set 2 in which the performance is higher than the fifth predetermined value, the best X reference signal index information.

Specific embodiment 5

In this embodiment, the terminal determines a transmission parameter hypothesis of the control channel, and obtains a Hypothetical PDCCH BLER according to the transmission parameter hypothesis and the SINR obtained according to the CSI-RS/DMRS/SSB, where the transmission parameter assumption of the control channel includes Assumptions for at least one of the following parameters:

a power difference between the reference signal and the control information in the control channel resource, such as a power difference between a resource transmitting the reference signal and a resource transmitting the DCI (the power of the control channel resource is transmitted in the control channel resource) Power on the resource of the control information); power difference between the reference signal and the demodulation reference signal of the control channel resource, control information in the control channel resource, and demodulation reference signal of the control channel resource The power difference between the control channel information transmission modes (the transmission mode includes at least one of the following modes: transmission diversity, CDD, Precoder cyclic, beam forming).

The reference signal is a reference signal detected by the terminal, including a number CSI-RS and/or a DMRS and/or a single sideband SSB, and the transmission mode of the control channel information includes at least one of the following transmission modes: SCDD ( Small Cyclic Delay Diversity), Precoder cyclic, beamforming, Space Frequency Block Coding (SFBC).

The acquisition method of these transmission parameter hypotheses may include one of the following methods:

Obtaining method 1: the transmission parameter is assumed to be a fixed value agreed by both the base station and the terminal;

Obtaining method 2: obtaining one or more transmission parameter hypotheses in the transmission parameter hypothesis according to a predetermined rule according to a first parameter of a control channel resource corresponding to the reference signal. For example, according to the CORESET-precoder-granularity of the CORESET corresponding to the reference signal, the transmission mode assumption of the control channel is determined. For example, when the CORESET-precoder-granularity is CORESET, the transmission mode of the control channel belongs to {SCDD, based on the beam. Transfer, SFBC}, the transfer mode cannot be Precoder cyclic. When CORESET-precoder-granularity is less than CORESET size, the transmission mode of the control channel belongs to {SCDD, based on beam transmission, Precoder cyclic, SFBC}.

Obtaining method 3: The base station informs the terminal of the assumed value of the above transmission parameter by explicit signaling.

Specific embodiment 6

In this embodiment, the beam recovery request information is transmitted on the dynamically scheduled channel or signal, where the beam recovery request information includes at least one of the following: the signal quality of all reference signals in the reference signal set 1 is lower than the first predetermined The threshold value, the signal quality of at least Q reference signals in the reference signal set 2 is higher than the second threshold, and the indication information of the X reference signals having the highest signal quality performance in the reference signal set 2 is referenced.

Where Q and X are positive integers, which may be agreed values of the base station and the terminal.

For the beam recovery request signal, the base station allocates feedback resources to the terminal, such as the PUCCH resource of the allocation period. When the beam request information needs to be sent, the information is sent on the allocated PUCCH resource. For fast link recovery, the PUCCH resource is required. The period cannot be too long, but since the transmission of the beam recovery request information is random, the beam recovery request information is not necessarily transmitted on the allocated PUCCH resource, and the period of the PUCCH resource for transmitting the beam restoration request information cannot be too large considering the cell load. small. Therefore, between two PUCCH periods, if the beam recovery request information needs to be sent, and the terminal receives the PDCCH between the two periods, for example, the PDCCH is allocated with PUSCH/PUCCH/SRS, the terminal can be in the dynamically scheduled channel or The beam recovery request information is fed back on the signal. Or the PDCCH is allocated with the PDSCH, and the beam recovery request information is fed back on the channel or signal where the ACK/NACK of the PDSCH is located.

Further, in order to reduce the blind detection complexity of the base station, it may be further agreed that only the dynamically scheduled PUSCH/PUCCH/SRS/PDSCH/feedback PDSCH ACK/NACK channel or signal falls within the predetermined time domain resource and/or falls within the agreed When the frequency domain resource is used, the beam recovery request information is fed back on the channel or signal of the ACK/NACK of the dynamically scheduled PUSCH/PUCCH/SRS/Feedback PDSCH, otherwise the terminal receives the message even between the PUCCH corresponding to the two beam recovery request information. The dynamic scheduling information does not transmit the beam recovery request information on a dynamic scheduling channel or signal.

Or similarly, only the physical dynamic scheduling downlink control information DCI falls on the predetermined time domain resource and/or falls within the agreed frequency domain resource, and the beam recovery request information is transmitted on the channel or signal obtained according to the DCI. . Otherwise, even if the terminal receives the dynamic scheduling information between the PUCCHs corresponding to the two beam recovery request information, the beam recovery request information is not transmitted on the channel or signal obtained according to the DCI.

Wherein the channel or signal falls within a predetermined time-frequency resource, one is that the starting position of the channel or signal falls within a predetermined time-frequency resource, and the other is that all of the channel or signal falls within a predetermined time. One of the time-frequency resources is that the end position of the channel or signal falls in a predetermined time-frequency resource, and specifically, which one can be agreed by the base station and the terminal.

The beam recovery request information may be sent on a demodulation reference signal corresponding to the channel. Of course, the data of the channel or the resource where the control data is located may be transmitted according to a certain puncturing manner.

Specific embodiment 7

In this embodiment, the terminal detects multiple reference signals, where multiple reference signals correspond to one control channel resource, multiple reference signals correspond to one Hypothetical PDCCH BLER, or multiple reference signals correspond to one channel quality, or multiple reference signals correspond to one Control channel resources.

At this time, it is necessary to determine a mapping manner between the plurality of reference signals to the demodulation reference signals of the control channel, or a mapping manner between the plurality of reference signals to the layers, and the mapping relationship may also be referred to as a transmission mode, according to the mapping. The relationship determines how a Hypothetical PDCCH BLER is obtained from multiple reference signals.

Or determining a mapping manner between the demodulation reference signal of the control channel to the plurality of reference signals, or a mapping manner between the layers and the plurality of reference signals, and the mapping relationship may also be referred to as a transmission mode, and determining according to the mapping relationship. How to obtain a Hypothetical PDCCH BLER from multiple reference signals, which may be CSI-RS/SSB/DMRS.

For example, the terminal needs to detect four CSI-RS ports, determine that the number of demodulation reference signal ports of the control channel is 1, and the terminal has Rx receiving antennas, so that the terminal can obtain the channel matrix H of Rx*4 by detecting four CSI-RS ports. In order to obtain the BLER based on the four reference signals to obtain the control channel, it is necessary to determine the mapping relationship between the demodulation reference signal of the control channel and the four reference signals, such as the port of the demodulation signal of the terminal and the base station stipulated by the control channel. The number is 1, and the mapping relationship between the demodulation reference signal of the control channel and the four CSI-RS ports is represented by W, where W is a matrix of CSI-RS port numbers *Lay, where Lay is a demodulation reference signal port of the control channel The hypothetical value of the number, so that the terminal obtains a BLER of the control channel based on the equivalent channel H _eff =HW. Similarly, the W may also be referred to as a mapping relationship between Lay layers to 4 CSI-RS ports.

The manner of obtaining W may include at least one of the following methods:

Acquisition method 1: W is the terminal's own decision, for example, the terminal performs SVD and demodulation reference signal decomposition according to the above H to obtain a preferred W;

Acquisition mode 2: W is that the terminal randomly selects in a predetermined W set, and the W set may be agreed by the base station and the terminal, or the base station may notify the terminal by using signaling information. Or polling the selection W in the W set.

Acquisition mode 3: W is a predetermined matrix, such as an identity matrix, such as the number of layers or the number of ports of the demodulation reference signal and the number of ports of the CSI-RS;

Obtaining method 4: The terminal obtains W according to a predetermined rule, for example, the base station and the terminal agree on a transmission mode assumption of the control channel, so that the W is obtained based on the transmission mode assumption, and the transmission manner includes: SFBC, Precoder cyclic, SCDD, Beamforming, etc. .

Of course, this application does not exclude the terminal from obtaining the W by other acquisition methods. Or the terminal feeds this W back to the base station.

Specific embodiment 8

In this embodiment, the terminal (or other communication node) performs the following operations:

Determining a reference signal set;

Each of the reference signal sets corresponds to a counter;

Obtaining channel quality detection information corresponding to the reference signal set according to multiple counters corresponding to the plurality of reference signals in the reference signal set in the predetermined time window.

Further, each reference signal in the reference signal set corresponds to a counter, which satisfies at least one of the following features:

When the primary channel quality evaluation corresponding to the reference signal satisfies a predetermined condition, the counter corresponding to the reference signal is incremented by one;

The first channel quality evaluation corresponding to the reference signal is better than the first predetermined threshold, and the counter corresponding to the reference signal is incremented by one;

The primary channel quality evaluation corresponding to the reference signal is worse than the second predetermined threshold, and the counter corresponding to the reference signal is incremented by one.

Further, the channel quality detection information corresponding to the reference signal set is obtained according to whether the plurality of counters meet the predetermined condition in the predetermined time window, and the method includes:

When the count value of all the counters corresponding to the plurality of counters in the reference signal set in the predetermined time window exceeds the first predetermined number, the reference signal set corresponding counter is incremented by one;

And the reference signal set corresponding counter is incremented by 1 when the count value of the predetermined number of counters exceeds a second predetermined number among the plurality of counters corresponding to the plurality of reference signals in the reference signal set in the predetermined time window;

Further, when the counter corresponding to the reference signal set is greater than or equal to the third predetermined number, the predetermined indication information is fed back.

Specific embodiment 9

In this embodiment, the base station configures a CSI-RS resource for the terminal, and each layer corresponds to a port subset of the CSI-RS resource, and the port subset corresponding to each layer number can be obtained by using a rule, or the base station The terminal is notified of the port subset corresponding to each layer, and then the PMI corresponding to the layer number, or the precoding vector is obtained according to the port subset corresponding to the layer number.

For example, a CSI-RS resource 1 includes {1-8-8}8 ports, and the base station indicates that the number of layers supported by the CSI-RS resource1 is {1, 2, 3}, and indicates that the number of layers corresponding to the layer 1 is {1. , 2}, the port subset corresponding to layer 2 is {1, 3, 4, 5}, and the port subset corresponding to layer 3 is {1, 2, 3, 4, 5, 6, 7, 8}, The terminal acquires a corresponding PMI based on the port subset corresponding to each layer number. Specifically, the terminal searches for a preferred PMI in the 2-port 1-layer PMI matrix based on the port {1, 2}, and the terminal is based on the port {1, 3, 4, 5 } Find the preferred PMI in the 4-port 2-layer PMI matrix. The terminal searches for the preferred PMI in the 8-port 3-layer PMI matrix based on the ports {1, 2, 3, 4, 5, 6, 7, 8}. Terminal for PMI Feedback includes the following:

Manner 1: The terminal searches for the optimal number of layers in the set of layers supported by the CSI-RS1, such as the number of layers with the largest channel capacity, the number of layers with the largest feedback channel capacity, and the PMI corresponding to the number of layers. For example, the terminal passes the above steps. The channel capacity corresponding to the layer number {1, 2, 3} is obtained, and the channel capacity corresponding to the layer number 2 is obtained to be the largest, so that the terminal feedback RI=2, and the PMI of the 4-port 2-layer number is fed back.

Manner 2: The terminal reports the preferred PMI for each CSI-RS supported layer, that is, the number of layers supported by the terminal for CSI-RS1 {1, 2, 3}, and respectively feeds the corresponding PMI for each layer. Specifically, for layer 1 feedback 2 port 1 layer one PMI, for layer 2 feedback 4 port 2 layer one PMI, for layer 3 feedback 8 port 3 layer one PMI.

When obtaining the PMI based on the port subset of the layer 3, the preferred precoding matrix is searched only in the precoding matrix of the number of ports included in the port subset *3, which is not excluded in this embodiment. The number of ports included *Lay, where Lay is a positive integer less than or equal to the number of layers. For example, Lay of the PMI of the layer 1 belongs to {1}, Lay of the PMI of the layer 2 belongs to {1, 2}, and Lay of the PMI of the layer 3 belongs to {1, 2, 3}.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, portions of the technical solutions of the present disclosure that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium (eg, ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present disclosure.

Embodiment 2

In this embodiment, a channel state information acquiring device is further provided, and the device is configured to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

According to an embodiment of the present disclosure, there is provided a channel quality information acquiring apparatus, the apparatus comprising:

a first determining module, configured to determine a control channel resource corresponding to the reference signal;

The first acquiring module is configured to acquire channel state information corresponding to the reference signal according to the parameter of the control channel resource.

Optionally, the obtaining the channel state information corresponding to the reference signal according to the parameter of the control channel resource includes: obtaining a transmission parameter hypothesis of the physical downlink control channel according to the parameter of the control channel resource; and obtaining a hypothesis according to the transmission parameter hypothesis Physical downlink control channel block error rate; the channel state information is obtained according to the assumed physical downlink control channel block error rate.

It is to be noted that, according to the transmission parameter hypothesis and the channel quality measured according to the reference signal, the assumed physical downlink control channel block error rate is determined according to the assumed physical downlink control channel block error rate and a preset rule or a formula, such as determining channel state information according to the relationship between the downlink control channel block error rate BLER and a predetermined threshold, the channel state information may indicate that the channel state is good or bad, that is, the channel state information is used to indicate that the reference is used. The reliability of the signal and the parameters of the control channel resource when transmitting the physical downlink control channel is in a good state or the reliability is in a bad state.

Optionally, the acquiring, according to the parameter of the control channel resource, the channel state information corresponding to the reference signal includes: when the reference signal corresponds to a control channel resource set, according to the parameter corresponding to the control channel resource set Obtaining channel state information corresponding to the reference signal; when the reference signal corresponds to a control channel resource set, each control channel resource in the control channel resource set corresponds to a channel quality, according to the control channel resource And acquiring, by the plurality of channel qualities corresponding to the multiple control channel resources in the set, channel state information corresponding to the reference signal; and when the reference signal corresponds to a control channel resource set, each control channel in the control channel resource set The resource corresponds to a channel state detection counter, and acquires channel state information corresponding to the reference signal according to multiple channel state detection counters corresponding to the plurality of control channel resources in the control channel resource set; wherein, in the control channel resource set Includes one or more control channels Resources.

Optionally, the first obtaining module further performs one of the following operations:

When the reference signal is associated with a control channel resource set, determining that the parameter corresponding to the control channel resource set is a parameter corresponding to a predetermined control channel resource in the control channel resource set, and according to the parameter corresponding to the predetermined control channel resource Obtaining channel state information corresponding to the reference signal;

When the reference signal corresponds to a control channel resource set, determining that the parameter corresponding to the control channel resource set is that the first reservation is satisfied by a set of parameters of each control channel resource in the control channel resource set Obtaining channel state information corresponding to the reference signal according to the parameter that satisfies the first predetermined condition;

Obtaining channel state information of the reference signal according to a determination result that the plurality of channel qualities corresponding to the plurality of control channel resources in the control channel resource set meet the second predetermined condition;

Optionally, the first acquiring module further performs at least one of: detecting a control channel on the control channel resource; and obtaining a channel before receiving the channel state information corresponding to the reference signal according to the parameter of the control channel resource The information is obtained by acquiring information of the control channel resource.

Optionally, the obtaining the channel state information corresponding to the reference signal according to the parameter of the control channel resource includes: setting a channel state detection counter corresponding to the reference signal according to the channel quality corresponding to the reference signal, according to the channel state The detection counter determines channel state information corresponding to the reference signal; wherein the channel state detection counter includes at least one of: a QCC parameter information of the control channel resource is reconfigured once, and the channel state detection counter is cleared once Zero; the QCL reference signal in the QCL parameter of the control channel resource is changed, and the channel state detection counter is cleared once.

Obtaining channel state information of the reference signal according to a determination result that the plurality of counters corresponding to the plurality of control channel resources in the control channel resource set meet the third predetermined condition;

Optionally, after acquiring channel state information corresponding to the reference signal, the first acquiring module is further configured to: when determining that the channel state information meets a fourth predetermined condition, feed back the channel state information.

Optionally, when it is required to detect channel state information of multiple reference signals, the first acquiring module is further configured to be at least one of the following:

When a control channel resource corresponds to a plurality of reference signals, determining, according to the at least one of the agreement rule and the signaling information, a mapping mode between the demodulation reference signal of the control channel and the plurality of reference signals, acquiring the Channel state information corresponding to a plurality of reference signals.

The mapping relationship between the plurality of reference signals and the layers is determined by the agreement rule and/or the signaling information, and the channel state information corresponding to the plurality of reference signals is obtained according to the mapping relationship.

Determining a mapping relationship between the layer and the plurality of reference signals by using a rule and/or signaling information, and obtaining channel state information corresponding to the plurality of reference signals according to the mapping relationship.

Degree of polymerization

Downlink control information format indication information, such as a type of DCI format that needs to be detected on the control channel resource;

The number of candidate control channels, such as the number of candidate control channels to be detected on a degree of aggregation on the control channel resource;

CCE to REG mapping mode;

Precoding block granularity;

The time domain information, for example, the control channel resource corresponds to at least one of the following information: time domain symbol number information, where the slot information is located;

Bundle size of the resource unit;

Offset when interleaving in units of bundle sizes of resource units;

TCI;

And a reference signal for satisfying a QCL relationship with a demodulation reference signal of the control channel resource

CP length;

Subcarrier spacing;

Control the transmission mode of channel information.

According to another embodiment of the present disclosure, there is also provided an apparatus for acquiring channel state information, the apparatus comprising:

a second determining module, configured to determine, according to at least one of the following, a control channel transmission parameter hypothesis: an agreed parameter, a parameter of a control channel resource corresponding to the reference signal;

And a second acquiring module, configured to acquire channel state information of the reference signal according to the control channel transmission parameter hypothesis.

Optionally, the parameter includes at least one of the following parameters:

Degree of aggregation; downlink control information format indication information; number of candidate control channels; CCE to REG mapping; precoding block granularity; frequency domain information; time domain information; resource unit bundle size, resource unit as bundle size Offset when interleaving; TCI; and a reference signal in the control channel resource that satisfies a QCL relationship, whether control information included in the control channel resource includes a predetermined domain, the reference signal and the reference signal a power difference between control information in a control channel resource; a power difference between the reference signal and a demodulation reference signal of the control channel resource; control information in the control channel resource and the control channel resource Demodulation power difference between reference signals; CP length; subcarrier spacing, transmission mode of demodulation reference signal; transmission mode of control channel information, mapping of demodulation reference signals of control channels to Y reference signals Relationship; a mapping relationship between layers to Y reference signals, where Y is a positive integer.

Detecting a control channel on the control channel resource;

According to another embodiment of the present disclosure, there is also provided a management apparatus for a channel state detection counter, the apparatus comprising:

The execution module is configured to perform a predetermined operation on the channel state detection counter when detecting that a predetermined event occurs.

The parameters of the control channel resources are reconfigured;

Successfully detecting control information on the physical control channel;

The configuration information of the reference signal is reconfigured;

The channel state detection counter corresponds to a reference signal;

The channel state detection counter corresponds to a reference signal set;

The channel state detection counter is a counter whose channel quality is lower than a predetermined threshold, and may also be referred to as a beam failure counter, or other equivalent name.

According to another embodiment of the present disclosure, there is also provided a channel state information feedback device, the device comprising:

a sending module, configured to send signaling information on a dynamically scheduled channel or signal, where the signaling information includes channel state information;

The dynamically scheduled channel or signal is scheduled by physical downlink control information.

Fourth information, including beam recovery request information;

Wherein X is a positive integer.

Optionally, the apparatus includes at least one of the following: information of the first or second predetermined time unit is included in the received first signaling information; information of the first or second predetermined frequency domain resource Included in the received second signaling information.

Optionally, the channel includes at least one of: an uplink physical data channel, an uplink aperiodic control channel, and an uplink control channel that feeds back an ACK/NACK corresponding to the downlink data channel;

The signal includes at least: an aperiodic SRS.

According to another embodiment of the present disclosure, there is also provided an information status information feedback device, the device comprising:

a third determining module, configured to determine a port subset of one measurement reference signal resource corresponding to each layer number;

And a feedback module configured to feed back precoding matrix indication information obtained based on the port subset.

Optionally, the precoding matrix indication information obtained by the feedback based on the port subset includes at least one of: a feedback rank RI and precoding matrix indication information corresponding to the RI; and supported by the measurement reference signal resource For each layer number, the feedback is based on the precoding matrix indication information obtained by the port subset corresponding to the layer number.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Embodiment 3

According to an embodiment of the present disclosure, there is also provided a storage medium having stored therein a computer program, wherein the computer program is configured to execute, when executed, in any of the alternative embodiments described above method.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Embodiment 4

Embodiments of the present disclosure also provide an electronic device including a memory and a processor having a computer program stored therein, the processor being configured to execute a computer program to perform the steps of any one of the method embodiments described above.

It will be apparent to those skilled in the art that the various modules or steps of the present disclosure described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present disclosure, and is not intended to limit the disclosure, and various changes and modifications may be made to the present disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

A method for acquiring channel state information includes:

Determining a control channel resource corresponding to the reference signal;

Obtaining channel state information corresponding to the reference signal according to the parameter of the control channel resource.
The method according to claim 1, wherein the obtaining channel state information corresponding to the reference signal according to the parameter of the control channel resource comprises:

When a reference signal is allowed to correspond to different control channel resources at different times, the channel state information corresponding to the reference signal at different times is acquired according to the parameters of the different control information resources.
The method according to claim 1, wherein the obtaining channel state information corresponding to the reference signal according to the parameter of the control channel resource comprises:

Obtaining a transmission parameter hypothesis of the physical downlink control channel according to the parameter of the control channel resource;

Obtaining a hypothetical physical downlink control channel block error rate according to the transmission parameter assumption;

The channel state information is obtained according to the assumed physical downlink control channel block error rate.
The method according to claim 1, wherein the acquiring channel state information corresponding to the reference signal according to a parameter of the control channel resource comprises one of the following:

Obtaining channel state information corresponding to the reference signal according to a parameter corresponding to the control channel resource set, when the reference signal is associated with a control channel resource set;

When the reference signal corresponds to a control channel resource set, each control channel resource in the control channel resource set corresponds to one channel quality, according to multiple channels corresponding to multiple control channel resources in the control channel resource set. Obtaining, by the quality, channel state information corresponding to the reference signal;

When the reference signal is associated with a control channel resource set, each control channel resource in the control channel resource set corresponds to a channel state detection counter, and corresponding to multiple control channels in the control channel resource set. Channel state detection counters acquire channel state information corresponding to the reference signal;

The control channel resource set includes one or more control channel resources.
The method of claim 4 wherein said method further comprises one of the following:

When the reference signal is associated with a control channel resource set, obtaining the channel state information corresponding to the reference signal according to the parameter corresponding to the control channel resource set includes: determining that the parameter corresponding to the control channel resource set is the Obtaining a parameter corresponding to the predetermined control channel resource in the control channel resource set, and acquiring channel state information corresponding to the reference signal according to the parameter corresponding to the predetermined control channel resource;

When the reference signal is associated with a control channel resource set, obtaining the channel state information corresponding to the reference signal according to the parameter corresponding to the control channel resource set includes: determining that the parameter corresponding to the control channel resource set is And obtaining, by the parameter set of the parameters of each control channel resource, the parameter that satisfies the first predetermined condition, according to the parameter that satisfies the first predetermined condition, acquiring channel state information corresponding to the reference signal;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel qualities corresponding to the multiple control channel resources in the control channel resource set includes: determining, according to the multiple channel quality corresponding to the multiple control channel resources in the control channel resource set Whether the judgment result of the second predetermined condition is satisfied, and channel state information of the reference signal is obtained;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes: corresponding to multiple control channel resources in the control channel resource set Whether the counter satisfies the judgment result of the third predetermined condition, and obtains channel state information of the reference signal;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes: corresponding to multiple control channel resources in the control channel resource set a minimum value among the counters, obtaining channel state information of the reference signal;

Acquiring the channel state information corresponding to the reference signal according to the multiple channel state detection counters corresponding to the multiple control channel resources in the control channel resource set includes: corresponding to multiple control channel resources in the control channel resource set The maximum value in the counters gives the channel state information of the reference signal.
The method of claim 5 wherein said predetermined control channel resource is a control channel resource having a lowest control channel resource identification number in said set of control channel resources.
The method of claim 1 wherein the method further comprises at least one of the following:

Detecting a control channel on the control channel resource;

Obtaining parameters of the control channel resource by using the received signaling information, before acquiring the channel state information corresponding to the reference signal according to the parameter of the control channel resource.
The method according to claim 1, wherein the obtaining channel state information corresponding to the reference signal according to the parameter of the control channel resource comprises:

And setting, according to a channel quality corresponding to the reference signal, a channel state detection counter corresponding to the reference signal, and determining channel state information corresponding to the reference signal according to the channel state detection counter;

The channel state detection counter includes at least one of the following:

The quasi-co-located QCL parameter information of the control channel resource is re-allocated once, and the channel state detection counter is cleared once;

The quasi-co-located reference QCL reference signal in the QCL parameter of the control channel resource is changed, and the channel state detection counter is cleared once.
The method according to claim 1, wherein the obtaining channel state information corresponding to the reference signal according to the parameter of the control channel resource comprises:

And setting, according to a channel quality corresponding to the reference signal, a channel state detection counter corresponding to the reference signal, and determining channel state information corresponding to the reference signal according to the channel state detection counter;

The channel state detection counter includes at least one of the following:

The configuration information of the control channel resource is reconfigured once, and the channel state detection counter is cleared once;

The configuration information of the reference signal is reconfigured once, and the channel state detection counter is cleared once.
The method of claim 1, wherein after acquiring channel state information corresponding to the reference signal, the method further comprises:

The channel state information is fed back when it is determined that the channel state information satisfies a fourth predetermined condition.
The method of claim 1, wherein when it is desired to detect channel state information of a plurality of reference signals, the method further comprises at least one of the following:

Obtaining channel state information of each reference signal according to a control channel resource or a control channel resource set corresponding to each reference signal, where each reference signal corresponds to one control channel resource or one control channel resource set;

When a control channel resource corresponds to a plurality of reference signals, determining, according to the at least one of the agreement rule and the signaling information, a mapping mode between the demodulation reference signal of the control channel and the plurality of reference signals, acquiring the Channel state information corresponding to multiple reference signals;

The channel state information corresponding to the plurality of reference signals is obtained according to the mapping relationship by using at least one mapping relationship between the layer and the plurality of reference signals.
The method according to any one of claims 1 to 11, wherein the parameters of the control channel resource comprise at least one of the following:

Degree of polymerization

Downlink control information format information;

The number of candidate control channels;

Control the mapping of channel elements to resource groups;

Precoding block granularity;

Frequency domain information;

Time domain information

The size of the resource unit, bundle size;

The offset when interleaving is performed in units of the size of the resource unit.

Transmission control indicator TCI domain indication information;

And a reference signal that satisfies a quasi-co-located QCL relationship with the demodulation reference signal of the control channel resource;

Whether the predetermined information is included in the control information included in the control channel resource;

a power difference between the reference signal and control information in the control channel resource;

a power difference between the reference signal and a demodulation reference signal of the control channel resource;

a power difference between the control information in the control channel resource and the demodulation reference signal of the control channel resource;

Cyclic prefix CP length;

Subcarrier spacing;

Demodulating related information of the reference signal;

Control the transmission mode of channel information.
The method according to any one of claims 1 to 11, wherein the control channel resource corresponding to the reference signal is determined by at least one of the following information:

a quasi-co-located QCL relationship between the reference signal and a demodulation reference signal of the control channel resource corresponding to the reference signal;

Receiving first signaling information, where the first signaling information includes the control channel resource corresponding to the reference signal;

Receiving second signaling information, where the second signaling information includes the reference signal corresponding to the control channel resource.
The method of any one of claims 1 to 11, wherein the reference signal comprises at least one of:

Measuring reference signal; demodulating reference signal; synchronizing signal.
A method for obtaining channel state information includes:

Determining a control channel transmission parameter hypothesis according to at least one of the following: an agreed parameter, a parameter of a control channel resource corresponding to the reference signal;

Obtaining channel state information of the reference signal according to the control channel transmission parameter hypothesis.
The method of claim 15 wherein said control channel resources comprise at least one of:

Detecting a control channel on the control channel resource;

Obtaining parameters of the control channel resource by using the received signaling information, before acquiring the channel state information corresponding to the reference signal according to the parameter of the control channel resource.
The method according to claim 15, wherein the determining the control channel transmission parameter hypothesis comprises at least one of the following according to the agreed parameters and/or parameters of the control channel resources corresponding to the reference signal:

When the reference signal does not have a corresponding control channel resource, the transmission parameter hypothesis of the control channel is determined by using the agreed parameter, wherein the agreed parameter includes at least one of the following parameters: the reference signal and the control a power difference between control information in a channel resource; a power difference between the reference signal and a demodulation reference signal of the control channel resource; control information in the control channel resource and a solution to the control channel resource Adjusting a power difference between reference signals; a transmission mode of control channel information; a mapping relationship between a demodulation reference signal of the control channel and the Y reference signals; a mapping relationship between the layers to the Y reference signals, Where Y is a positive integer;

Obtaining, according to a predetermined rule, a second transmission parameter hypothesis of the control channel according to a first parameter of a control channel resource corresponding to the reference signal;

And obtaining, according to a predetermined rule, a range of the second transmission parameter hypothesis of the control channel according to a second parameter of the control channel resource corresponding to the reference signal.
A method for managing a channel state detection counter includes:

When it is detected that a predetermined event occurs, a predetermined operation is performed on the channel state detection counter.
The method of claim 18, wherein the predetermined operation comprises one of the following operations:

The channel state detection counter is cleared;

The channel state detection counter is subtracted by a predetermined number;

After the predetermined event occurs, the channel state detection counter is prohibited from counting continuously.
The method of claim 18, wherein the predetermined event comprises at least one of the following events:

The parameters of the control channel resources are reconfigured;

Successfully detecting control information on the physical control channel;

Successfully detecting control information on physical control channels of N time units;

Successfully detecting control information on physical control channels of consecutive M time units;

Successful detection of proprietary control information on the physical control channel;

Channel quality of the reference signal in successive L evaluation windows is higher than a first predetermined threshold;

The channel quality corresponding to the P evaluation windows of the reference signal in the predetermined time window is higher than the second predetermined threshold;

The configuration information of the reference signal is reconfigured;

Channel quality at least Q reference signals appearing in the predetermined reference signal set is higher than a third predetermined threshold;

The channel quality is obtained according to the reference signal, and one of the evaluation windows corresponds to a primary channel estimation of the reference signal; and the N, M, L, P, and Q are positive integers.
The method of claim 20, wherein the predetermined event is a parameter reconfiguration of the control channel resource comprising at least one of the following:

The QCL parameters of the control channel resource are reconfigured;

The parameter of the control channel resource corresponding to the channel state detection counter is reconfigured.
The method of claim 18, wherein the channel state detection counter comprises at least one of:

The channel state detection counter corresponds to a reference signal;

The channel state detection counter corresponds to a reference signal set;

The channel state detection counter is a counter whose channel quality is lower than a predetermined threshold.
A channel state information feedback method includes:

Transmitting signaling information on a dynamically scheduled channel or signal, wherein the signaling information includes channel state information;

The dynamically scheduled channel or signal is scheduled by physical downlink control information.
The method of claim 23, wherein the signaling information is used to indicate at least one of the following:

The first information is used to indicate that the reference signal performance in the reference signal set 1 is lower than a predetermined threshold;

The second information is used to indicate that at least X reference signal qualities in the reference signal in the reference signal set 2 are higher than a predetermined threshold;

The third information is used to indicate indication information of the reference signal in the reference signal set 2 that the reference signal quality is higher than a predetermined threshold;

Fourth information, including beam recovery request information;

The fifth information is used to indicate that the beam recovery request information has been sent at least once before;

Wherein X is a positive integer.
The method of claim 23 wherein transmitting signaling information on the dynamically scheduled channel or signal comprises at least one of:

Transmitting the signaling information on the dynamically scheduled channel or signal when the dynamically scheduled channel or signal is located in a first predetermined time unit;

Transmitting the signaling information on the dynamically scheduled channel or signal when the dynamically scheduled channel or signal is located in a first predetermined frequency domain resource;

Transmitting the signaling information on the dynamically scheduled channel or signal when the physical downlink control information is located in a second predetermined time unit;

And transmitting, when the physical downlink control information is located in a second predetermined frequency domain resource, the signaling information on the dynamically scheduled channel or signal.
The method of claim 25, wherein the method comprises at least one of the following:

The information of the first or second predetermined time unit is included in the received first signaling information;

The information of the first or second predetermined frequency domain resource is included in the received second signaling information.
The method of claim 23, wherein

The channel includes at least one of the following: an uplink physical data channel, an uplink aperiodic control channel, and an uplink control channel that acknowledges an acknowledgement ACK/negative answer NACK corresponding to the downlink data channel;

The signal includes at least: an aperiodic SRS.
A method for information status information feedback includes:

Determining a subset of ports of a measurement reference signal resource corresponding to each layer number;

The feedback is based on precoding matrix indication information obtained from the subset of ports.
The method of claim 28, wherein determining a port subset of one measurement reference signal resource corresponding to each layer number comprises at least one of the following:

The port subset corresponding to each layer number is included in the received signaling information;

The subset of ports corresponding to each layer number is obtained by a convention rule;

The number of ports included in the port subset corresponding to the number of layers is greater than or equal to the number of layers.
The method of claim 28, wherein the feedback based on the pre-coding matrix indication information obtained by the port subset comprises at least one of the following:

The feedback rank RI and the precoding matrix indication information corresponding to the RI;

For each layer supported by the measurement reference signal resource, the precoding matrix indication information obtained based on the port subset corresponding to the layer number is fed back.
A channel state information acquiring device includes:

a first determining module, configured to determine a control channel resource corresponding to the reference signal according to the determining;

The first acquiring module is configured to acquire channel state information corresponding to the reference signal according to the parameter of the control channel resource.
A device for acquiring channel state information includes:

The second determining module determines, according to at least one of the following, a control channel transmission parameter hypothesis: an agreed parameter, and a parameter of the control channel resource corresponding to the reference signal;

The second acquiring module is configured to acquire channel state information of the reference signal according to the control channel transmission parameter hypothesis.
A management device for a channel state detection counter, comprising:

The execution module is configured to perform a predetermined operation on the channel state detection counter when detecting that a predetermined event occurs.
A channel state information feedback device includes:

a sending module, configured to send signaling information on a dynamically scheduled channel or signal, where the signaling information includes channel state information;

The dynamically scheduled channel or signal is scheduled by physical downlink control information.
An information status information feedback device includes:

a third determining module, configured to determine a port subset of one measurement reference signal resource corresponding to each layer number;

And a feedback module configured to feed back precoding matrix indication information obtained based on the port subset.
A storage medium having stored therein a computer program, wherein the computer program is arranged to execute the method of any one of claims 1 to 30 at runtime.
An electronic device comprising a memory and a processor, the memory storing a computer program, the processor being arranged to execute the computer program to perform the method of any one of claims 1 to 30.