CN107733605B

CN107733605B - Channel measurement feedback method and device and pilot frequency sending method and device

Info

Publication number: CN107733605B
Application number: CN201610664765.4A
Authority: CN
Inventors: 陈艺戬; 鲁照华; 李儒岳; 吴昊
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2022-06-17
Anticipated expiration: 2036-08-12
Also published as: CN107733605A

Abstract

The invention provides a channel measurement feedback method and device and a pilot frequency sending method and device, wherein the method comprises the following steps: determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; detecting first-type CSI measurement reference information according to the detection parameters; under the condition that the first type of CSI measurement reference information is detected, CSI measurement is carried out based on the first type of CSI measurement reference information to obtain a first type of CSI measurement result; and feeding back the first type CSI measurement result to the sending end. The invention solves the problem of low beam training efficiency caused by the need of a large amount of measurement beam pilot frequency overhead in the related technology, and achieves the effect of improving the beam training efficiency.

Description

Channel measurement feedback method and device and pilot frequency sending method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a channel measurement feedback method and apparatus, and a pilot frequency sending method and apparatus.

Background

In a wireless communication system, however, as the number of antennas increases, a Beamforming (beam forming) technique is used to enhance coverage of various channel signals, and particularly in a high frequency system, because of a large path loss, the Beamforming technique is generally required to be adopted to ensure basic coverage requirements of various channels.

Beamforming is shown in fig. 1 and includes: the method comprises two parts of base band precoding and radio frequency precoding, wherein the base band precoding mainly refers to precoding acting on a radio frequency path, the radio frequency precoding mainly refers to precoding acting on an array of the radio frequency path, the former is completed on a base band, and the latter is completed on radio frequency.

The essence of the Beamforming technology is that channel information is utilized to enable a signal to have a same-direction superposition effect after passing through a sending end channel and a receiving end channel, which is equivalent to concentrating energy in a certain direction (which can be understood as a certain direction in a high-dimensional space corresponding to a high-dimensional channel, and is generally a direction of a feature vector in a feature space), so that a good forming sending Beamforming effect can be obtained, and the more antennas, the narrower the beam and the better the effect. However, the challenge of this technique is that it is very important to select a correct narrow beam, and if the selected beam does not match with the actual channel feature vector, the situation that only little or no useful signal is received occurs, and the performance of multi-antenna beamforming is greatly reduced, so how to feed back accurate beam information is an important issue.

In some current technical solutions, a system mainly performs beam training and feedback in the following manner, which may be applied to downlink or uplink, where the following beam training is mainly taken as an example:

step A: configuring the transmission parameters of the channel measurement beam pilot frequency to a receiving end;

and B: a transmitting end transmits N wave beam pilot frequencies used for channel measurement;

step C: the receiving end receives the measurement beam pilot frequency configuration parameters and receives the measurement beam pilot frequencies; measuring through the N wave beam pilot frequencies to obtain channel quality information;

step D: the receiving end selects the beam pilot frequency and feeds back the corresponding beam index and quality information.

It can be seen that, in the related art, the transmitting end obtains the best beam direction information through the transmission of some dedicated measurement beam pilots and the corresponding measurement feedback. The method needs more overhead of measurement beam pilots, wherein the measurement beam pilots have various embodiments and can be sent at different positions and have different names and calling names, but generally, the related technology needs special pilots for beam selection and tracking;

in an actual system, several problems affecting the accuracy of the beam direction may be faced, one is that the main transmission path Blocking and the like are problems, and the other is that the optimal beam direction is changed due to the terminal moving problem, and the beam cannot be aligned or blocked, as shown in fig. 2.

If enough transmission robustness needs to be guaranteed, the above problems need to be solved, and a simple mode is to configure a measurement beam pilot frequency which is sent more frequently and to perform beam selection tracking more frequently, but this brings a large amount of pilot overhead problem, the beam pilot frequency generally needs to be sent many times to meet the coverage requirement under the condition of narrow beam, the pilot overhead of completely scanning a week in the coverage range may need dozens of hundreds of symbols, and if the beam pilot frequency is sent frequently, the transmission efficiency of the system is seriously influenced;

therefore, the related art has a problem that the beam training is not efficient due to the need of a large amount of measurement beam pilot overhead.

Disclosure of Invention

The embodiment of the invention provides a channel measurement feedback method and device and a pilot frequency sending method and device, which are used for at least solving the problem that the efficiency of beam training is not high due to the fact that a large amount of measurement beam pilot frequency overhead is needed in the related technology.

According to an embodiment of the present invention, there is provided a channel measurement feedback method including: determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; detecting the first type CSI measurement reference information according to the detection parameters; under the condition that the first type of CSI measurement reference information is detected, CSI measurement is carried out based on the first type of CSI measurement reference information to obtain a first type of CSI measurement result; and feeding back the first type CSI measurement result to a sending end.

Optionally, the detection parameter is at least one of: the method comprises the steps of collecting a sequence for transmitting or detecting the first type of CSI measurement reference information, collecting a frequency domain Resource Block (RB) position for transmitting or detecting the first type of CSI measurement reference information, a time domain symbol group position for transmitting or detecting the first type of CSI measurement reference information, collecting a time-frequency resource position pattern for transmitting or detecting the first type of CSI measurement reference information, and collecting a port for transmitting or detecting the first type of CSI measurement reference information.

Optionally, the detection parameters further include at least one of: the power configuration parameter set corresponding to the pilot frequency sequence for sending or detecting the first type CSI measurement reference information, the power configuration parameter set corresponding to the time-frequency resource position for sending or detecting the first type CSI measurement reference information, and the power configuration parameter set corresponding to the port for sending or detecting the first type CSI measurement reference information.

Optionally, feeding back the first CSI measurement result to the transmitting end includes: and feeding back the difference value between the first type CSI measurement result and the reference CSI information to the sending end.

Optionally, before feeding back the first type CSI measurement result to the transmitting end, the method further includes: judging whether the first-class CSI measurement result needs to be fed back or not; and determining to feed back the first type CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

Optionally, the determining whether the first type CSI measurement result needs to be fed back includes: and comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back or not.

Optionally, the reference CSI information is CSI obtained based on second type CSI measurement reference information, where the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of: a beam reference signal RS, a beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS.

Optionally, the second type CSI measurement reference information is based on a data channel demodulation reference pilot or a control channel demodulation reference pilot before the first type CSI measurement result is obtained.

Optionally, the reference CSI information is CSI information fed back before the first type CSI measurement result is obtained, or the reference CSI information is CSI information obtained based on data demodulation reference pilot measurement or CSI information obtained based on control demodulation reference pilot measurement before the first type CSI measurement result is obtained.

Optionally, the determining whether the first type CSI measurement result needs to be fed back includes: and judging whether the first type CSI measurement result needs to be fed back or not according to the channel quality offset parameter.

Optionally, the channel quality offset parameter is configured by the sending end.

Optionally, the first type CSI demodulation reference pilot signal is a demodulation reference pilot signal of a first type receiving end and/or a demodulation reference pilot signal of a second type receiving end, where the second type receiving end is another receiving end except the first type receiving end.

According to another embodiment of the present invention, there is provided a channel measurement feedback method including: determining first-type Channel State Information (CSI) measurement reference information, wherein the measurement reference information is at least one of the following information: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; measuring the first type CSI measurement reference information on N groups of time domain resources; obtaining CSI information corresponding to the N groups of time domain resources; and selecting M groups of CSI information from the N groups of CSI information and feeding back the M groups of CSI information to the sending end.

Optionally, the first type CSI measurement reference information is sent on the N sets of time domain resources, where the time domain resources are at least one of: time domain symbol group, transmission time interval TTI group and time slot group.

Optionally, the value of N and/or the value of M are determined according to the configuration information of the transmitting end.

Optionally, the N groups of time domain resources are determined according to configuration information of the sending end.

Optionally, the configuration information of the N groups of time domain resources includes at least one of: the position of the time domain resource, the size of the time domain resource and the multiplexing mode of the time domain resource.

Optionally, the configuration information is sent in a physical layer broadcast channel.

Optionally, the transmission powers corresponding to the N sets of time domain resources are determined according to the configuration of the transmitting end, and/or the transmission sequences and/or scrambling sequences corresponding to the N sets of time domain resources are determined according to the configuration of the transmitting end.

Optionally, before selecting the M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the transmitting end, the method further includes: and determining whether measurement feedback is needed according to the indication of the sending end.

According to another embodiment of the present invention, there is provided a pilot transmission method, including: determining a first pilot signal set and a second pilot signal set, wherein the first pilot signal set is used for Channel State Information (CSI) measurement and feedback, the second pilot signal set is associated with a data channel or a control channel, the first pilot signal set comprises pilot signals transmitted on P pilot resources, the second pilot signal set comprises pilot signals transmitted on Q pilot resources, and the Q pilot resources are subsets of the P pilot resources; and sending the pilot signals in the first pilot frequency set and the second pilot frequency set to a receiving end.

Optionally, the association relationship is a reference demodulation relationship.

Optionally, the reference demodulation relationship is: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating the data channel or the control channel.

Optionally, after determining the first pilot signal set and the second pilot signal set, further comprising: and configuring a linear combination mode for performing linear combination on the pilot ports in the second pilot signal set.

Optionally, the pilot resource includes at least one of: pilot port resource or pilot port group resource, pilot symbol resource or pilot symbol group resource, pilot beam resource or pilot beam group resource, pilot sequence resource or pilot sequence group resource.

Optionally, before configuring the first pilot signal set and the second pilot signal set, further comprising: configuring a value of the P in the first pilot signal set; and/or configuring the transmission resource indication parameters of the P pilot signals contained in the first pilot signal set.

Optionally, the sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes:

and sending configuration signaling to the receiving end, wherein the configuration signaling is used for indicating the receiving end to determine that Q pilot signals form the second pilot signal set in the P pilot signals in the first pilot signal set.

Optionally, the pilots included in the second pilot signal set are the last Q pilots at the time-domain transmission position in the first pilot set, or the pilots included in the second pilot signal set are the first Q pilots at the time-domain transmission position in the first pilot set, or the pilots included in the second pilot signal set are the Q pilots at the time-domain transmission position in the first pilot set that is closest to the control channel or the data channel.

Optionally, the pilots included in the second pilot signal set are determined according to the number of data or controlled transmission layers, and/or the value of Q is determined according to the number of data or controlled transmission layers.

Optionally, the sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes: and configuring the value indication information of the Q to the receiving end.

According to still another embodiment of the present invention, there is provided a channel measurement feedback method including: determining a first pilot signal set for Channel State Information (CSI) measurement and feedback, wherein the first pilot signal set comprises P pilot signals; determining a second set of pilot signals for data channel or control channel reference demodulation, wherein the second set of pilot signals comprises Q pilot signals, and the second set of pilot signals is a subset of the first set of pilot signals; receiving the P pilot signals contained in the first pilot signal set according to first configuration information, and performing CSI measurement feedback; and performing reference demodulation on the data channel or the control channel according to the Q pilot signals in the second pilot signal set.

Optionally, the second set of pilot signals is a proper subset of the first set of pilot signals.

Optionally, determining the second set of pilot signals for data channel or control channel reference demodulation comprises: determining a subset from the first set of pilot signals as the second set of pilot signals according to a distance between pilot transmission resource locations and a data channel or a control channel; or, determining a subset from the first pilot signal set as the second pilot signal set according to the number of transmission layers of a control channel or a data channel; or, determining a subset from the first pilot signal set as the second pilot signal set according to configuration signaling of a transmitting end.

Optionally, the reference demodulation of the data channel or the control channel according to the Q pilot signals in the second set of pilot signals comprises: and after the pilot frequency ports in the second pilot frequency signal set are linearly combined, the pilot frequency ports are used for demodulating data or control channels.

Optionally, a linear combination mode for performing linear combination on the pilot ports in the second pilot signal set is indicated by configuration of a transmitting end.

Optionally, the value of Q is determined according to a configuration signaling of a transmitting end; or, the value of Q is determined according to the type of the channel; or, the value of Q is determined according to the number of transmission layers.

According to still another embodiment of the present invention, there is provided a channel measurement feedback method including: sending N groups of first-class information to a receiving end, wherein the N groups of first-class information occupy N groups of different time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information; and sending a configuration signaling to the receiving end, wherein the configuration signaling is used for indicating that N 'groups of first-type information in the N groups of first-type information or N' groups of time domain resources in the N groups of time domain resources are used for the receiving end to perform CSI measurement feedback.

Optionally, after sending the configuration signaling to the receiving end, the method further includes: receiving a CSI measurement result fed back by the receiving end after the CSI measurement is carried out according to the configuration signaling; and determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

Optionally, the CSI measurement result includes: index and/or quality information of the beam pilot selected by the receiving end.

Optionally, the value of N' is determined according to the number of transmission layers of data or control.

According to still another embodiment of the present invention, there is provided a channel measurement feedback method including: receiving N groups of first-class information, wherein the N groups of first-class information occupy N groups of time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information; and determining N' groups in the N groups of first-class information according to the configuration of the sending end for carrying out CSI measurement feedback.

Optionally, before determining, according to the configuration of the transmitting end, that the N' sets of the N sets of first-type information are used for performing the CSI measurement feedback, the method further includes: receiving a configuration signaling of the transmitting end, wherein the configuration signaling is used for indicating that the N' groups of the N groups of first-type information are used for performing the CSI measurement feedback.

Optionally, determining, according to the configuration of the transmitting end, that the N' sets of the N sets of the first type information are used for performing the CSI measurement feedback includes: and feeding back a CSI measurement result to the sending end, wherein the CSI measurement result carries a beam index and/or quality information corresponding to the beam pilot selected by the receiving end.

Optionally, before feeding back the CSI measurement result to the transmitting end, the method further includes: comparing the CSI measurement result with reference CSI information, and judging whether the first type of CSI measurement result needs to be fed back or not; and feeding back the CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

According to still another embodiment of the present invention, there is provided a channel measurement feedback apparatus including: a determining module, configured to determine a detection parameter of first type CSI measurement reference information, where the first type CSI measurement reference information is at least one of: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; the detection module is used for detecting the first type CSI measurement reference information according to the detection parameters; an obtaining module, configured to perform CSI measurement based on the first type of CSI measurement reference information to obtain a first type of CSI measurement result when the first type of CSI measurement reference information is detected; and the feedback module is used for feeding back the first type CSI measurement result to the sending end.

Optionally, the apparatus further comprises: the judging module is used for comparing the first type CSI measuring result with reference CSI information and judging whether the first type CSI measuring result needs to be fed back or not; and the second determining module is used for determining that the first-class CSI measuring result is fed back to the sending end under the condition that the judging result of the judging module is required to be fed back.

Optionally, the determining module is further configured to determine whether the first type CSI measurement result needs to be fed back according to the channel quality offset parameter.

Optionally, the feedback module is further configured to feed back a difference between the first type CSI measurement result and the reference CSI information to the sending end.

According to still another embodiment of the present invention, there is provided a channel measurement feedback apparatus including: a first determining module, configured to determine first-type channel state information, CSI, measurement reference information, where the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; the measurement module is used for measuring the first type CSI measurement reference information on N groups of time domain resources; an obtaining module, configured to obtain CSI information corresponding to the N sets of time domain resources; and the selection module is used for selecting M groups of CSI information from the N groups of CSI information and feeding the M groups of CSI information back to the sending end.

Optionally, the apparatus further comprises: and a second determining module, configured to determine, according to the configuration of the sending end, sending powers corresponding to the N sets of time domain resources, respectively, and/or determine, according to the configuration of the sending end, sending sequences and/or scrambling sequences corresponding to the N sets of time domain resources, respectively.

Optionally, the apparatus further comprises: the judging module is used for judging whether measurement feedback is needed according to the indication of the sending end; the selection module is further configured to select the M sets of CSI information from the N sets of CSI information and feed the M sets of CSI information back to the sending end when the determination result of the determination module indicates that measurement feedback is required.

According to still another embodiment of the present invention, there is provided a pilot transmission apparatus including: a determining module, configured to determine a first pilot signal set and a second pilot signal set, where the first pilot signal set is used for channel state information CSI measurement and feedback, the second pilot signal set has an association relationship with a data channel or a control channel, the first pilot signal set includes pilot signals sent on P pilot resources, the second pilot signal set includes pilot signals sent on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources; and a sending module, configured to send pilot signals in the first pilot set and the second pilot set to a receiving end.

Optionally, the apparatus further comprises: a configuration module, configured to configure a value of the P in the first pilot signal set; and/or for configuring the transmission resource indication parameters of the P pilot signals included in the first pilot signal set.

Optionally, the sending module includes: a sending unit, configured to send a configuration signaling to the receiving end, where the configuration signaling is used to instruct the receiving end to determine, among the P pilot signals in the first pilot signal set, that Q pilot signals constitute the second pilot signal set.

According to still another embodiment of the present invention, there is provided a channel measurement feedback apparatus including: a first determining module, configured to determine a first pilot signal set used for CSI measurement and feedback, where the first pilot signal set includes P pilot signals; a second determining module, configured to determine a second set of pilot signals for data channel or control channel reference demodulation, where the second set of pilot signals includes Q pilot signals, and the second set of pilot signals is a subset of the first set of pilot signals; a feedback module, configured to receive the P pilot signals included in the first pilot signal set according to first configuration information, and perform CSI measurement feedback; and the demodulation module is used for performing reference demodulation on the data channel or the control channel according to the Q pilot signals in the second pilot signal set.

Optionally, the second determining module includes: a first determining unit, configured to determine a subset from the first pilot signal set as the second pilot signal set according to a distance between a pilot transmission resource location and a data channel or a control channel; or, determining a subset from the first pilot signal set as the second pilot signal set according to the number of transmission layers of a control channel or a data channel; or, the method is configured to determine a subset from the first pilot signal set as the second pilot signal set according to configuration signaling of a transmitting end.

Optionally, the second determining module includes: and the second determining unit is used for determining the value of the Q according to the configuration signaling or the type of the channel or the number of transmission layers of the sending end.

According to still another embodiment of the present invention, there is provided a channel measurement feedback apparatus including: a first sending module, configured to send N sets of first-type information to a receiving end, where the N sets of first-type information occupy N sets of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information; a second sending module, configured to send a configuration signaling to the receiving end, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used by the receiving end to perform CSI measurement feedback.

Optionally, the apparatus further comprises: a receiving module, configured to receive a CSI measurement result fed back by the receiving end after performing CSI measurement according to the configuration signaling; and the determining module is used for determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

According to still another embodiment of the present invention, there is provided a channel measurement feedback apparatus including: a first receiving module, configured to receive N groups of first-type information, where the N groups of first-type information occupy N groups of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information; and the determining module is used for determining that N' groups in the N groups of first-class information are used for measuring and feeding back the CSI according to the configuration of the sending end.

Optionally, the apparatus further comprises: a second receiving module, configured to receive a configuration signaling of the sending end, where the configuration signaling is used to indicate that N' groups of the N groups of first type information are used to perform CSI measurement feedback.

Optionally, the apparatus further comprises: a first feedback module, configured to feed back a CSI measurement result to the sending end, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by a receiving end.

Optionally, the apparatus further comprises: the judging module is used for comparing the CSI measuring result with reference CSI information and judging whether the first type of CSI measuring result needs to be fed back or not; and the second feedback module is used for feeding back the CSI measurement result to the sending end under the condition that the judgment result of the judgment module is required to be fed back.

According to still another embodiment of the present invention, there is provided a terminal including: the device comprises a processor and a transmission device, wherein the processor is configured to determine detection parameters of first-type channel state information, CSI, measurement reference information, and the first-type CSI measurement reference information is at least one of: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; the CSI measurement device is also used for carrying out CSI measurement based on the first type of CSI measurement reference information under the condition that the first type of CSI measurement reference information is detected, and obtaining a first type of CSI measurement result; and the transmission device is connected with the processor and used for feeding back the first type CSI measurement result to the sending end through an interface.

Optionally, the processor is further configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back; the transmission device is further configured to feed back the first CSI measurement result to the sending end through the interface when the determination result of the processor is that feedback is required.

Optionally, the processor is further configured to determine whether the first type CSI measurement result needs to be fed back according to a channel quality offset parameter.

Optionally, the processor is further configured to determine a difference between the first type CSI measurement result and reference CSI information; the transmission device is further configured to feed back the determined difference value to the sending end through the interface.

According to still another embodiment of the present invention, there is provided a terminal including: the device comprises a processor and a transmission device, wherein the processor is configured to determine first-type channel state information, CSI, measurement reference information, wherein the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; the CSI measurement reference information acquisition module is also used for measuring the first type of CSI measurement reference information on N groups of time domain resources, acquiring CSI information corresponding to the N groups of time domain resources, and selecting M groups of CSI information from the N groups of CSI information; and the transmission device is used for feeding back the selected M groups of CSI information to the sending end through an interface.

Optionally, the processor is further configured to determine, according to the configuration of the sending end, sending powers corresponding to the N sets of time domain resources, respectively, and/or determine, according to the configuration of the sending end, sending sequences and/or scrambling sequences corresponding to the N sets of time domain resources, respectively.

Optionally, the processor is further configured to determine whether to perform measurement feedback according to the indication of the sending end, and select the M sets of CSI information from the N sets of CSI information when the determination result is that the measurement feedback is performed.

According to still another embodiment of the present invention, there is provided a base station including: the device comprises a processor and a transmission device, wherein the processor is configured to determine a first pilot signal set and a second pilot signal set, the first pilot signal set is used for Channel State Information (CSI) measurement and feedback, the second pilot signal set is associated with a data channel or a control channel, the first pilot signal set comprises pilot signals transmitted on P pilot resources, the second pilot signal set comprises pilot signals transmitted on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources; and a transmission device, configured to send pilot signals in the first pilot set and the second pilot set to a receiving end through an interface.

Optionally, the processor is further configured to configure a value of the P in the first pilot signal set, and/or configure a transmission resource indication parameter of the P pilot signals included in the first pilot signal set.

Optionally, the transmission apparatus is further configured to send a configuration signaling to the receiving end, where the configuration signaling is used to instruct the receiving end to determine, among P pilot signals in the first pilot signal set, Q pilot signals to constitute the second pilot signal set.

According to still another embodiment of the present invention, there is provided a terminal including: a processor and a transmission device, wherein the processor is configured to determine a first set of pilot signals for CSI measurement and feedback, wherein the first set of pilot signals includes P pilot signals; the method further comprises determining a second set of pilot signals for data channel or control channel reference demodulation, wherein the second set of pilot signals comprises Q pilot signals, and the second set of pilot signals is a subset of the first set of pilot signals; the device is further configured to perform CSI measurement according to the P pilot signals included in the first pilot signal received by the transmission device; the reference demodulation of the data channel or the control channel is carried out according to Q pilot signals in the second pilot signal set; the transmitting device is configured to receive, through a first interface, the P pilot signals included in the first pilot signal set according to first configuration information; and the second interface is used for feeding back the CSI measurement result.

Optionally, the processor is further configured to determine a subset from the first set of pilot signals as the second set of pilot signals according to a distance between pilot transmission resource locations and a data channel or a control channel; or, determining a subset from the first pilot signal set as the second pilot signal set according to the number of transmission layers of a control channel or a data channel; or, the method is configured to determine a subset from the first pilot signal set as the second pilot signal set according to configuration signaling of a transmitting end.

Optionally, the processor is configured to determine the value of Q according to a configuration signaling of a transmitting end, a type of a channel, or a number of transmission layers.

According to still another embodiment of the present invention, there is provided a base station including: the device comprises a processor and a transmission device, wherein the processor is configured to determine N sets of first-type information, where the N sets of first-type information occupy N sets of time-domain resources, and the first-type information is at least one of: data and/or control information, and reference demodulation pilot frequency corresponding to the data information and/or the control information; the transmission device is used for transmitting the N groups of first-class information to a receiving end through a first interface; and further configured to send a configuration signaling to the receiving end through the first interface, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used by the receiving end to perform CSI measurement feedback.

Optionally, the transmission apparatus is further configured to receive, through the second interface, a CSI measurement result fed back by the receiving end after performing CSI measurement according to the configuration signaling; the processor is configured to determine the beam pilot selected by the receiving end according to the received CSI measurement result.

According to still another embodiment of the present invention, there is provided a terminal including: the transmission device is configured to receive N sets of first type information through a first interface, where the N sets of first type information occupy N sets of time domain resources, and the first type information is at least one of: data information and/or control information, and reference demodulation pilot frequencies corresponding to the data information and/or the control information; and the processor is used for determining that N' groups in the N groups of first-class information are used for measuring and feeding back Channel State Information (CSI) according to the configuration of a sending end.

Optionally, the transmitting apparatus is further configured to receive, through the first interface, a configuration signaling of the transmitting end, where the configuration signaling is used to indicate that N' sets of the N sets of the first type information are used for CSI measurement feedback.

Optionally, the transmission apparatus is further configured to feed back, by the second interface, a CSI measurement result to the sending end, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the receiving end.

Optionally, the processor is further configured to compare the CSI measurement result with reference CSI information, determine whether the first type CSI measurement result needs to be fed back, and feed back the CSI measurement result to the sending end when the determination result is that feedback is needed.

According to still another embodiment of the present invention, there is provided a channel measurement feedback system including: a base station and a terminal, wherein the base station includes a first processor and a first transmission device, wherein the first processor is configured to determine a first pilot signal set and a second pilot signal set, wherein the first pilot signal set is used for CSI measurement and feedback, the second pilot signal set has an association relationship with a data channel or a control channel, the first pilot signal set includes pilot signals transmitted on P pilot resources, the second pilot signal set includes pilot signals transmitted on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources; a first transmission device, configured to send pilot signals in the first pilot set and the second pilot set to the terminal through an interface; the terminal includes: a second processor and a second transmission device, wherein the second processor is configured to determine the first set of pilot signals for CSI measurement and feedback; further for determining the second set of pilot signals for data channel or control channel reference demodulation; the second transmitting device is configured to receive, through a first interface, the P pilot signals included in the first pilot signal set according to first configuration information; and the second interface is used for feeding back the CSI measurement result.

Optionally, the first transmitting apparatus is further configured to send configuration signaling, where the configuration signaling is used to instruct the terminal to determine, from the P pilot signals in the first pilot signal set, Q pilot signals to constitute the second pilot signal set; the second transmitting device is further configured to receive the configuration signaling; the second processor is configured to determine, according to the configuration signaling, Q pilot signals from the P pilot signals in the first pilot signal set to form the second pilot signal set.

According to still another embodiment of the present invention, there is provided a channel measurement feedback system including: the base station comprises: the first processor is configured to determine N sets of first type information, where the N sets of first type information occupy N sets of time domain resources, and the first type information is at least one of: the reference demodulation pilot frequency corresponding to the data information and/or the control information; the first transmission device is used for sending the N groups of first-class information to the terminal through a first interface; the terminal is further configured to send a configuration signaling to the receiving end through the first interface, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used for the terminal to perform CSI measurement feedback; the terminal includes: the second transmission device is used for receiving the N groups of first-class information through a second interface; and the second processor is configured to determine, according to the configuration signaling of the base station, that N' sets of the N sets of the first type information are used for CSI measurement and feedback.

Optionally, the second transmission device is further configured to feed back a CSI measurement result to the base station through a third interface, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the terminal; the first transmission device is configured to receive, through a fourth interface, the CSI measurement result sent by the terminal; the first processor is further configured to determine the beam pilot selected by the terminal according to the CSI measurement result.

According to yet another embodiment of the present invention, a storage medium is provided. The storage medium is configured to store program code for performing the steps of: determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; detecting the first type CSI measurement reference information according to the detection parameters; under the condition that the first type of CSI measurement reference information is detected, CSI measurement is carried out based on the first type of CSI measurement reference information to obtain a first type of CSI measurement result; and feeding back the first type CSI measurement result to a sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the detection parameter is at least one of the following: the method comprises the steps of collecting a sequence for transmitting or detecting the first type of CSI measurement reference information, collecting a frequency domain Resource Block (RB) position for transmitting or detecting the first type of CSI measurement reference information, a time domain symbol group position for transmitting or detecting the first type of CSI measurement reference information, collecting a time-frequency resource position pattern for transmitting or detecting the first type of CSI measurement reference information, and collecting a port for transmitting or detecting the first type of CSI measurement reference information.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the detection parameters further include at least one of: the power configuration parameter set corresponding to the pilot frequency sequence for sending or detecting the first type of CSI measurement reference information, the power configuration parameter set corresponding to the time-frequency resource position for sending or detecting the first type of CSI measurement reference information, and the power configuration parameter set corresponding to the port for sending or detecting the first type of CSI measurement reference information.

Optionally, the storage medium is further arranged to store program code for performing the steps of: feeding back the first type CSI measurement result to the transmitting end includes: and feeding back the difference value between the first type CSI measurement result and the reference CSI information to the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: before feeding back the first type CSI measurement result to the transmitting end, the method further includes: judging whether the first type CSI measurement result needs to be fed back or not; and determining to feed back the first type CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

Optionally, the storage medium is further arranged to store program code for performing the steps of: judging whether the first type CSI measurement result needs to be fed back comprises the following steps: and comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back or not.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reference CSI is CSI obtained based on second-type CSI measurement reference information, wherein the second-type CSI measurement reference information is a channel state information measurement pilot frequency, and the channel state information measurement pilot frequency is at least one of the following: a beam reference signal RS, a beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the second type of CSI measurement reference information is based on a data channel demodulation reference pilot or a control channel demodulation reference pilot before the first type of CSI measurement result is obtained.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reference CSI information is CSI information fed back before the first type CSI measurement result is obtained, or the reference CSI information is CSI information obtained based on data demodulation reference pilot frequency measurement or CSI information obtained based on control demodulation reference pilot frequency measurement before the first type CSI measurement result is obtained.

Optionally, the storage medium is further arranged to store program code for performing the steps of: judging whether the first type CSI measurement result needs to be fed back comprises the following steps: and judging whether the first type CSI measurement result needs to be fed back or not according to the channel quality offset parameter.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the channel quality offset parameter is configured by the transmitting end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the first type of CSI demodulation reference pilot signals are demodulation reference pilot signals of a first type of receiving end and/or demodulation reference pilot signals of a second type of receiving end, wherein the second type of receiving end is other receiving ends except the first type of receiving end.

According to yet another embodiment of the present invention, a storage medium is provided. The storage medium is configured to store program code for performing the steps of: determining first-type Channel State Information (CSI) measurement reference information, wherein the measurement reference information is at least one of the following information: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; measuring the first type CSI measurement reference information on N groups of time domain resources; obtaining CSI information corresponding to the N groups of time domain resources; and selecting M groups of CSI information from the N groups of CSI information and feeding back the M groups of CSI information to the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the first type of CSI measurement reference information is sent on the N sets of time domain resources, where the time domain resources are at least one of: time domain symbol group, transmission time interval TTI group, time slot group.

Optionally, the storage medium is further arranged to store program code for performing the steps of: and the value of the N and/or the value of the M are determined according to the configuration information of the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: and the N groups of time domain resources are determined according to the configuration information of the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the configuration information of the N groups of time domain resources comprises at least one of the following: the position of the time domain resource, the size of the time domain resource and the multiplexing mode of the time domain resource.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the configuration information is sent in a physical layer broadcast channel.

Optionally, the storage medium is further arranged to store program code for performing the steps of: and determining the sending power corresponding to the N groups of time domain resources according to the configuration of the sending end, and/or determining the sending sequence and/or the scrambling sequence corresponding to the N groups of time domain resources according to the configuration of the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: before selecting the M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the transmitting end, the method further includes: and determining whether measurement feedback is needed according to the indication of the sending end.

According to yet another embodiment of the present invention, a storage medium is provided. The storage medium is configured to store program code for performing the steps of: determining a first pilot signal set and a second pilot signal set, wherein the first pilot signal set is used for Channel State Information (CSI) measurement and feedback, the second pilot signal set is associated with a data channel or a control channel, the first pilot signal set comprises pilot signals transmitted on P pilot resources, the second pilot signal set comprises pilot signals transmitted on Q pilot resources, and the Q pilot resources are subsets of the P pilot resources; and sending the pilot signals in the first pilot frequency set and the second pilot frequency set to a receiving end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the association relationship is a reference demodulation relationship.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reference demodulation relation is as follows: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating the data channel or the control channel.

Optionally, the storage medium is further arranged to store program code for performing the steps of: after determining the first set of pilot signals and the second set of pilot signals, further comprising: and configuring a linear combination mode for carrying out linear combination on the pilot ports in the second pilot signal set.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the pilot resources include at least one of: pilot port resource or pilot port group resource, pilot symbol resource or pilot symbol group resource, pilot beam resource or pilot beam group resource, pilot sequence resource or pilot sequence group resource.

Optionally, the storage medium is further arranged to store program code for performing the steps of: prior to configuring the first set of pilot signals and the second set of pilot signals, further comprising: configuring a value of the P in the first pilot signal set; and/or configuring the transmission resource indication parameters of the P pilot signals contained in the first pilot signal set.

Optionally, the storage medium is further arranged to store program code for performing the steps of: sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes:

and sending configuration signaling to the receiving end, wherein the configuration signaling is used for indicating the receiving end to determine that Q pilot signals form the second pilot signal set from the P pilot signals in the first pilot signal set.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the second pilot signal set includes the last Q pilots at the time-domain transmission position in the first pilot set, or the second pilot signal set includes the first Q pilots at the time-domain transmission position in the first pilot set, or the second pilot signal set includes the Q pilots at the time-domain transmission position in the first pilot set that is closest to the control channel or the data channel.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the pilot frequency contained in the second pilot signal set is determined according to the number of data or control transmission layers, and/or the value of Q is determined according to the number of data or control transmission layers.

Optionally, the storage medium is further arranged to store program code for performing the steps of: sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes: and configuring the value indication information of the Q to the receiving end.

According to yet another embodiment of the present invention, a storage medium is provided. The storage medium is configured to store program code for performing the steps of: determining a first pilot signal set for Channel State Information (CSI) measurement and feedback, wherein the first pilot signal set comprises P pilot signals; determining a second set of pilot signals for data channel or control channel reference demodulation, wherein the second set of pilot signals contains Q pilot signals, and the second set of pilot signals is a subset of the first set of pilot signals; receiving the P pilot signals contained in the first pilot signal set according to first configuration information, and performing CSI measurement feedback; and performing reference demodulation on the data channel or the control channel according to the Q pilot signals in the second pilot signal set.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the second set of pilot signals is a proper subset of the first set of pilot signals.

Optionally, the storage medium is further arranged to store program code for performing the steps of: determining the second set of pilot signals for data channel or control channel reference demodulation comprises: determining a subset from the first set of pilot signals as the second set of pilot signals according to a distance between pilot transmission resource locations and a data channel or a control channel; or, determining a subset from the first pilot signal set as the second pilot signal set according to the number of transmission layers of a control channel or a data channel; or, determining a subset from the first pilot signal set as the second pilot signal set according to configuration signaling of a transmitting end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: performing the reference demodulation of the data channel or the control channel according to the Q pilot signals in the second set of pilot signals comprises: and after the pilot frequency ports in the second pilot frequency signal set are linearly combined, the pilot frequency ports are used for demodulating data or control channels.

Optionally, the storage medium is further arranged to store program code for performing the steps of: and a linear combination mode for performing linear combination on the pilot ports in the second pilot signal set is indicated by configuration of a sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the value of Q is determined according to a configuration signaling of a sending end; or, the value of Q is determined according to the type of the channel; or, the value of Q is determined according to the number of transmission layers.

According to yet another embodiment of the present invention, a storage medium is provided. The storage medium is configured to store program code for performing the steps of: sending N groups of first-class information to a receiving end, wherein the N groups of first-class information occupy N groups of different time domain resources, and the first-class information is at least one of the following information: data information and/or control information, and reference demodulation pilot frequencies corresponding to the data information and/or the control information; and sending a configuration signaling to the receiving end, wherein the configuration signaling is used for indicating that N 'groups of first-type information in the N groups of first-type information or N' groups of time domain resources in the N groups of time domain resources are used for the receiving end to perform CSI measurement feedback.

Optionally, the storage medium is further arranged to store program code for performing the steps of: after sending the configuration signaling to the receiving end, the method further includes: receiving a CSI measurement result fed back by the receiving end after the CSI measurement is carried out according to the configuration signaling; and determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the CSI measurement result includes: the index and/or quality information of the beam pilot selected by the receiving end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the value of N' is determined according to the number of transmission layers of data or control.

According to yet another embodiment of the present invention, a storage medium is provided. The storage medium is configured to store program code for performing the steps of: receiving N groups of first-class information, wherein the N groups of first-class information occupy N groups of time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information; and determining N' groups in the N groups of first-class information according to the configuration of the sending end for carrying out CSI measurement feedback.

Optionally, the storage medium is further arranged to store program code for performing the steps of: before determining that the N' sets of the N sets of first type information are used for performing the CSI measurement feedback according to the configuration of the transmitting end, the method further includes: receiving a configuration signaling of the transmitting end, wherein the configuration signaling is used for indicating that the N' groups of the N groups of first-class information are used for the CSI measurement feedback.

Optionally, the storage medium is further arranged to store program code for performing the steps of: determining, according to the configuration of the transmitting end, that the N' sets of the N sets of first-type information are used for performing the CSI measurement feedback includes: and feeding back a CSI measurement result to the sending end, wherein the CSI measurement result carries a beam index and/or quality information corresponding to the beam pilot selected by the receiving end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: before feeding back the CSI measurement result to the transmitting end, the method further includes: comparing the CSI measurement result with reference CSI information, and judging whether the first type of CSI measurement result needs to be fed back or not; and feeding back the CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

According to the invention, the demodulation pilot frequency is used for channel measurement, the change condition of the wave beam can be monitored, and the periodic wave beam training can obtain better transmission robustness without frequent operation, so that the problem of low wave beam training efficiency caused by the need of a large amount of wave beam pilot frequency measurement overhead in the related technology can be solved, and the effect of improving the wave beam training efficiency is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram of beamforming according to the related art;

fig. 2 is a schematic diagram of a scenario in which beams cannot be aligned or blocked according to the related art;

fig. 3 is a block diagram of a hardware configuration of a terminal of a channel measurement feedback method according to an embodiment of the present invention;

FIG. 4 is a first flowchart of a channel measurement feedback method according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating simultaneous co-frequency single-user scheduled transmissions in accordance with a preferred embodiment of the present invention;

fig. 6 is a schematic diagram of multi-user spatial multiplexing according to a preferred embodiment of the present invention;

FIG. 7 is a flow chart of a channel measurement feedback method according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the transmission of a common control according to the preferred embodiment of the present invention;

fig. 9 is a block diagram of a hardware configuration of a base station of a channel measurement feedback method according to an embodiment of the present invention;

fig. 10 is a flowchart three of a channel measurement feedback method according to an embodiment of the present invention;

fig. 11(a) is a diagram illustrating a transmitting end configuring two types of pilot sets according to the preferred embodiment of the present invention;

fig. 11(b) is a diagram illustrating a transmitting end configuring two types of pilot sets according to the preferred embodiment of the present invention;

fig. 11(c) is a third diagram illustrating that the transmitting end configures two types of pilot sets according to the preferred embodiment of the present invention;

fig. 12 is a fourth flowchart of a channel measurement feedback method according to an embodiment of the present invention;

fig. 13 is a flow chart diagram five of a channel measurement feedback method according to an embodiment of the present invention;

FIG. 14 is a sixth flowchart of a channel measurement feedback method according to an embodiment of the present invention;

fig. 15(a) is a diagram illustrating CSI measurement performed by a transmit-end configuration data block according to a preferred embodiment of the present invention;

fig. 15(b) is a diagram illustrating a transmit-side configuration control block performing CSI measurement according to a preferred embodiment of the present invention;

fig. 16 is a first block diagram of the channel measurement feedback apparatus according to the embodiment of the present invention;

fig. 17 is a block diagram of a second structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 18 is a block diagram of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 19 is a block diagram of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 20 is a block diagram showing the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 21 is a block diagram of a first structure of a pilot transmitting apparatus according to an embodiment of the present invention;

fig. 22 is a block diagram of a configuration of a pilot transmitting apparatus according to an embodiment of the present invention;

fig. 23 is a block diagram of a structure of a transmission module 214 of a pilot transmission apparatus according to an embodiment of the present invention;

fig. 24 is a block diagram six of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 25 is a first block diagram of the second determining module 244 of the channel measurement feedback apparatus according to the embodiment of the present invention;

fig. 26 is a block diagram of the second determining module 244 of the channel measurement feedback apparatus according to the embodiment of the present invention;

fig. 27 is a first block diagram of the channel measurement feedback system according to the embodiment of the present invention;

fig. 28 is a block diagram seven of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 29 is a block diagram eight of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 30 is a block diagram nine of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 31 is a block diagram of the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 32 is a block diagram eleven illustrating the structure of a channel measurement feedback apparatus according to an embodiment of the present invention;

fig. 33 is a block diagram twelve of the structure of a channel measurement feedback device according to an embodiment of the present invention;

fig. 34 is a block diagram of a second configuration of a channel measurement feedback system according to an embodiment of the present invention.

Detailed Description

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

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It should be noted that the precoding/beam mentioned in the present invention can be either baseband or rf or a mixture of both.

Example 1

The method embodiment provided by the embodiment 1 of the present application can be executed in a terminal such as a mobile terminal, a computer terminal, and the like. Taking the operation on the terminal as an example, fig. 3 is a hardware structure block diagram of the terminal of the channel measurement feedback method according to the embodiment of the present invention. As shown in fig. 3, the terminal 30 may include one or more (only one shown) processors 32 (the processors 32 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 34 for storing data, and a transmission device 36 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 3 is only an illustration and is not intended to limit the structure of the electronic device. For example, the terminal 30 may also include more or fewer components than shown in FIG. 3, or have a different configuration than shown in FIG. 3.

The memory 34 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the channel measurement feedback method in the embodiment of the present invention, and the processor 32 executes various functional applications and data processing by running the software programs and modules stored in the memory 34, so as to implement the method described above. The memory 34 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 34 may further include memory located remotely from the processor 32, which may be connected to the terminal 30 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission means 36 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the terminal 30. In one example, the transmission device 36 includes a Network adapter (NIC) that can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 36 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

In this embodiment, a channel measurement feedback method operating in the terminal is provided, and fig. 4 is a first flowchart of the channel measurement feedback method according to the embodiment of the present invention, as shown in fig. 4, the flowchart includes the following steps:

step S402, determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal;

step S404, detecting first type CSI measurement reference information according to the detection parameters;

step S406, under the condition that the first type CSI measurement reference information is detected, CSI measurement is carried out based on the first type CSI measurement reference information, and a first type CSI measurement result is obtained;

step S408, feeding back the first CSI measurement result to the sending end.

Through the steps, demodulation pilot frequency (detection parameters of first-class CSI measurement reference Information) is used for Channel measurement, CSI measurement is carried out based on first-class Channel State Information (CSI for short, including Information of Channel quality, Channel direction, Channel rank and the like) measurement reference Information, a first-class CSI measurement result is obtained and fed back, the change condition of the beam can be monitored, periodic beam training can obtain better transmission robustness without frequent beam training, the problem that the efficiency of beam training is not high due to the fact that a large amount of beam measurement pilot frequency overhead is needed in the related technology is solved, and the beam training efficiency is improved.

Optionally, the first CSI demodulation reference pilot signal may be a demodulation reference pilot signal of a first type receiving end, or a demodulation reference pilot signal of a second type receiving end, where the second type receiving end is another receiving end except the first type receiving end. Or a combination of the demodulation reference pilot signals of the first type of receiving end and the demodulation reference pilot signals of the second type of receiving end (considering the demodulation reference pilot signals of the first type of receiving end and the demodulation reference pilot signals of the second type of receiving end at the same time), where the first type of receiving end may be a terminal that determines the detection parameters of the first type of CSI measurement reference information.

Optionally, the detection parameter may be at least one of: the method comprises the steps of setting a sequence for transmitting or detecting first-class CSI measurement reference information, setting a frequency-domain Resource Block (RB) position for transmitting or detecting the first-class CSI measurement reference information, setting a time-domain symbol group position for transmitting or detecting the first-class CSI measurement reference information, setting a time-frequency resource position pattern for transmitting or detecting the first-class CSI measurement reference information, and setting a port for transmitting or detecting the first-class CSI measurement reference information. The detection parameters may further include: the detecting parameters further include: the method comprises the steps of obtaining a first type of CSI measurement reference information, obtaining a first type of CSI measurement reference information from a first CSI measurement reference information, obtaining a first type of CSI measurement reference information, and obtaining a first type of CSI measurement reference information.

Optionally, in step S408, the first CSI measurement result may be fed back in a variety of manners, for example, the first CSI measurement result may be fed back directly to the transmitting end (on a channel agreed with the transmitting end or configured by the transmitting end), and for example, a difference between the first CSI measurement result and the reference CSI information may be fed back to the transmitting end (on a channel agreed with the transmitting end or configured by the transmitting end). Compared with the mode of directly feeding back the first type CSI measurement result, the difference value between the first type CSI measurement result and the reference CSI information can reduce the workload of a sending end (such as a base station) and improve the working efficiency of the sending end.

Optionally, before step S408, it may also be determined whether the first type CSI measurement result needs to be fed back, and when the determination result is that feedback is needed, it is determined to feed back the first type CSI measurement result to the sending end.

Before step S408, it can also be determined whether feedback is needed in various ways: for example, whether feedback is needed or not is determined according to the indication information of the transmitting end, and for example, whether the first type CSI measurement result needs to be fed back or not may be determined by comparing the first type CSI measurement result with the reference CSI information.

Optionally, it may also be determined whether the first type CSI measurement result needs to be fed back according to the channel quality offset parameter, for example, the first type CSI measurement result is compared with the reference CSI information, and when the first type CSI measurement result is better than the channel quality of the reference CSI information and is greater than a preset threshold (for example, 3dB), the reporting is performed (the measurement result is fed back to the sending end).

Optionally, the reference CSI information is agreed by the sender and the receiver, or configured by the sender.

Optionally, the reference CSI information may have various forms, for example, CSI may be obtained based on a second type of CSI measurement reference information, where the second type of CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a beam reference signal RS, a beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS. For another example, the reference CSI information may be based on a previous data channel demodulation reference pilot (prior to obtaining the first type CSI measurement result) or a control channel demodulation reference pilot. For another example, the reference CSI information may be CSI information fed back before the first CSI measurement result is obtained, or may also be CSI information obtained previously (before the first CSI measurement result is obtained) based on data demodulation reference pilot measurement or CSI information obtained based on control demodulation reference pilot measurement.

Optionally, the channel quality offset parameter is configured by the transmitting end (e.g., through signaling configuration), and may also be predefined by the transmitting end and the receiving end.

Optionally, the control information demodulation reference pilot signal is at least one of: public control information demodulation reference pilot signals and proprietary control information demodulation reference pilot signals.

Based on the above embodiments and optional implementation manners, in order to illustrate the whole flow interaction of the scheme, in the preferred embodiment, a channel measurement feedback method is provided, and the method is described below.

In a beam-based communication system, there is typically one period of the beam training process, including: a sending end configures and sends N beam pilots for channel measurement; the receiving end receives the measurement beam pilot frequency configuration parameters and receives the measurement beam pilot frequencies; measuring through the N wave beam pilot frequencies to obtain channel quality information; the receiving end selects the beam pilot frequency and feeds back the corresponding beam index and quality information.

After the transmitting end obtains the information, the beam pilot frequency is carried out again after a period of time, the beam scanning is carried out again, and the receiving end updates the beam quality and the selection information. In order to save the overhead of the pilot, it is generally expected that the transmission period needs to be configured longer to avoid affecting the transmission efficiency of the system.

Generally, before sending the beam pilot again for CSI measurement feedback, the base station generally uses the beam reported before to transmit control information and data information. In the system, if there are multiple users, such as UEs a, b, c, d, e, f, the multiple users a, b, c, d, e, f should feed back their best beam information respectively as beam a, beam b, beam c, beam d, beam e, beam f. When the base station schedules different users, the base station transmits the optimal beam information reported by the different users. For example, when scheduling UE a, it transmits using beam a, and when scheduling UE b, it transmits using beam b.

First, considering the simple single-user transmission, control information or data information of multiple users may be scheduled and transmitted in the transmission interval T of two beam pilots, and information of different users may be transmitted at different times. Whether control information or data information has its corresponding demodulation pilot.

In the present invention, these pieces of information (control information or data information) and the corresponding demodulation pilot information are referred to as CSI measurement reference information of the first type. Although this information is mainly used for transmission of data or control information, it may be utilized by some method (e.g., a method for measuring channel quality) to perform channel measurement.

When transmitting the first type CSI measurement reference information, although it may be that the information is not transmitted to a certain UE, the UE may still use the information for channel quality measurement. Specifically, the quality of the transmission beam may be measured and compared with the quality of the best beam reported in the previous UE beam training. It is determined whether it finds a better beam to feed back. If the requirements are met, feedback is required.

If the same frequency is the case of only single-user scheduled transmission, as shown in fig. 5.

It should be noted that, the UE currently receiving the control or data information may also compare whether the channel quality measured based on the first type CSI measurement reference information is worse than the quality of the beam reported before, and if the quality is worse, the UE may also perform feedback.

Another case is the case of multiuser spatial division multiplexing, as shown in fig. 6. The method is characterized in that a plurality of UEs can be scheduled simultaneously, and other UEs can measure a plurality of types of CSI measurement reference information simultaneously.

The user can detect the demodulation reference pilot frequency of other users, compare the demodulation reference pilot frequency with the channel quality corresponding to the demodulation reference pilot frequency reported by the user before or measured, and judge whether to feed back. For example, if the reference demodulation pilots of other users satisfy a certain condition (e.g., the channel quality better than the channel quality of the user exceeds a preset threshold), the information needs to be fed back to the sending end (which may include the comparison result, the channel quality corresponding to the reference demodulation pilots of other users, etc.).

The user can detect the receiving power of the data or control signal of other users, compare the receiving power with the channel quality corresponding to the demodulation reference pilot frequency reported by the user before or measured, and judge whether to feed back. For example, if the reference demodulation pilots of other users satisfy a certain condition (e.g., the channel quality better than that of the user exceeds a preset threshold), the information needs to be fed back to the sending end;

the receiving end may perform beam quality measurement in various ways, and several measurement beam qualities are described below.

When the receiving end measures the beam quality, the measurement can be performed based on the reference demodulation pilot of the terminal or other terminals.

When the receiving end measures the beam quality, the measurement may be performed based on the reception quality of the own terminal data or control information or the reception power of other terminal data or control information.

The sending end can configure some information detection parameters for the receiving end, and the detection parameters are a sequence set for sending or detecting the first type of CSI measurement reference information; these sequences may correspond to the IDs of the beams. The receiving end determines a detection range at the time of channel measurement based on these parameters, or calculates a true channel quality based on these parameters. The sending end can control the detection behavior of the receiving end in this way, so that the detection can be more effectively carried out.

For example, the range of configuration detection is { sequence 1, sequence 2 … … sequence 16} or { sequence 8, sequence 9 … … sequence 12} and the like, and these sequences have a binding relationship with some beam indexes.

The detection parameter may be a Resource Block (RB) set for transmission or detection of the first type CSI measurement reference information; these RBs correspond to the IDs of the beams;

the parameters may be sensed in a manner such as, for example,

the detection parameter may be a transmitted/detected time domain symbol group (OFDM symbol group) position of the first type CSI measurement reference information.

The detection parameter may be a set of time-frequency Resource location patterns (Resource Element patterns) for transmission/detection of the first type CSI measurement reference information.

The detection parameter may be a set of port (port) groups for transmission/detection of the first-type CSI measurement reference information; these ports typically have their corresponding sequences; or configuration of the corresponding resource location.

The detection parameters may further include a set of power configuration parameters corresponding to the transmitted/detected pilot sequences of the first type CSI measurement reference information.

The detection parameters may further include a set of power configuration parameters corresponding to time-frequency resource locations of transmission/detection of the first type CSI measurement reference information.

The detection parameters may further include a set of power configuration parameters corresponding to the port of transmission/detection of the first type CSI measurement reference information.

As described above, the receiving end needs to compare the first type CSI measurement result with the reference CSI information, and determine whether to feed back the first type CSI measurement result. The judgment criterion can directly compare the quality of the signal, and if the first-class CSI measurement result is better than the channel quality of the reference CSI information, the first-class CSI measurement result is reported. The decision criterion may also introduce an offset parameter, which may be configured by the transmitting end, or predefined by the transceiving end, for example, 3 dB. At this time, the judgment criteria are: and when the first-class CSI measurement result is better than the channel quality of the reference CSI information and is greater than a 3dB threshold, reporting. The reported content may be resource indexes of the first type CSI measurement reference information corresponding to channel qualities of some beams satisfying the condition in the first type CSI measurement result.

In addition to the above-mentioned decision criteria, it is also necessary to consider the transmission power of these first-type CSI measurement reference information and the number of used resources for a more fair comparison with the reference CSI information.

The reference CSI information may be agreed by the transmitting end and the receiving end, for example, beam quality information corresponding to a beam reported when the beam is selected last time, or the transmitting end configures a reference CSI value, for example, a channel quality value, and the reference CSI value is characterized by a signal to interference plus noise ratio (SINR).

The reference CSI information may be CSI obtained based on second type CSI measurement reference information. The second type of CSI measurement reference information is a Channel State information measurement pilot, and the Channel State information measurement pilot may include a Beam Reference Signal (BRS), a beam improvement reference signal (BRRS), a measurement Channel State information reference signal (CSI-RS), and the like.

The reference CSI information may be CSI information fed back by the receiving end before.

The reference CSI information may be CSI information obtained based on previous User Equipment (UE) data or a control channel demodulation reference pilot.

By the technical scheme of the preferred embodiment of the invention, the demodulation pilot frequency is effectively utilized for channel measurement, and the change condition of the beam can be monitored, so that the periodic beam training can obtain better transmission robustness without very frequent training.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 2

The method embodiment provided in embodiment 2 of the present application may be executed in a terminal as shown in fig. 3.

In this embodiment, a channel measurement feedback method operating in the terminal is provided, and fig. 7 is a second flowchart of the channel measurement feedback method according to the embodiment of the present invention, as shown in fig. 7, the flowchart includes the following steps:

step S702, determining first-type CSI measurement reference information, wherein the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information;

step S704, measuring first type CSI measurement reference information on N groups of time domain resources;

step S706, obtaining CSI information corresponding to N groups of time domain resources;

and step S708, selecting M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the sending end.

Through the steps, the demodulation pilot frequency is used for channel measurement, the change condition of the beam can be monitored, the periodic beam training can obtain better transmission robustness without frequent measurement, the problem of low beam training efficiency caused by the need of a large amount of measurement beam pilot frequency overhead in the related technology is solved, and the beam training efficiency is improved.

Optionally, the first type CSI measurement reference information may be sent on the N sets of time domain resources, where the time domain resources may be at least one of: time domain symbol group, transmission time interval TTI group and time slot group.

Optionally, the value of N and/or the value of M may be determined according to the configuration of the sending end, may be preset, or may be obtained by the receiving end according to a preset rule (at this time, a specific value may be notified to the sending end).

Optionally, the N sets of time domain resources may be determined according to configuration information of the sending end. The configuration information of the N groups of time domain resources may include at least one of: the position of the time domain resource, the size of the time domain resource and the multiplexing mode of the time domain resource. The configuration information is transmitted on a physical layer broadcast channel.

Optionally, the transmission powers corresponding to the N sets of time domain resources may be determined according to the configuration of the transmitting end. The N sets of sending sequences and/or scrambling sequences corresponding to the time domain resources may be determined according to the configuration of the sending end.

Optionally, before step S708, the method may further include: and determining whether measurement feedback is needed according to the indication of the transmitting end. For example, whether feedback is performed at this time may be determined according to an instruction of whether feedback is performed at the transmitting end, and for example, whether a feedback condition is satisfied may be determined according to an instruction of the transmitting end, and in a case that the feedback condition is satisfied, it is determined that measurement feedback is required.

Beam training may use some wide coverage signals/channels and their corresponding demodulation pilots for beam selection in addition to some periodically transmitted beam pilots dedicated for beam training, and commonly controlled transmission is shown in fig. 8.

And the control information is sent on a plurality of beams in different directions in a round-robin manner to ensure the coverage in the cell. The control information is needed to be detected by a plurality of UEs, so that the plurality of UEs may receive the demodulation pilot of the control information and detect the control information. In addition to detecting control information, it may also use the demodulation pilot of the control information, or the transmission symbol power of the information, to measure the channel quality. For example, the UE1 may receive the strongest signal on beam 1, but the signals on

beams

2 and 3 … … are not strong enough, and the UE1 may feed back the information of beam 1 to the transmitting end; UE2 may receive the strongest signal on beam 2, but the signals on

beams

1, 3 … … and N are not strong enough, and UE2 may feed back the information of beam 2 to the transmitting end; UE3 may receive the strongest signal on beam 5, but the signals on

beams

1, 2, 3, 4, 6, and 7 … …, beam N are not too strong, and UE3 may feed back the information on beam 5 to the transmitting end. Therefore, the measurement and selection of the channel information can be carried out on the basis of not additionally increasing the measurement pilot frequency by adding a measurement feedback step; since some common control messages are periodic, they are well reused for CSI measurement feedback.

The dedicated control channel is similar to this, but its transmission may be in specific directions, the number of beams may be smaller, which is equivalent to a small range of beam selection, and it may also be used as a fine beam selection scheme after having some coarse beam information.

Specifically, the channel measurement feedback method of the present preferred embodiment may include the following steps:

step one, a receiving end and a transmitting end appoint or configure first-class CSI measurement reference information, and the measurement reference information is at least one of the following information: control information demodulation reference pilot signals (including public control information demodulation reference pilot signals and proprietary control information demodulation reference pilot signals), data information demodulation reference pilot signals, control information (including at least one of public control information and proprietary control information) and data information;

measuring first-class CSI measurement reference information on N groups of time domain resources by a receiving end;

step three, the receiving end obtains CSI information corresponding to N groups of time domain resources;

step four, the receiving end selects M groups from the N groups of CSI information and feeds back the M groups to the sending end;

the first type of CSI measurement reference information may be sent on N sets of time domain resources, where the resources are time domain symbol sets or TTI sets or timeslot sets; such as groups of N OFDM symbols.

The value of N and/or M may be determined according to the configuration of the transmitting end, and the transmitting end transmits the configuration information of the parameters (N and/or M). For example, N may be carried in a physical broadcast channel or may be carried in a physical control channel.

The N sets of time domain resources may be determined according to a configuration of the sending end, for example, the sending end indicates through a high layer signaling or a physical layer broadcast subchannel.

The configuration of the N groups of time domain resources includes at least one of: the position of the time domain resource, the size of the time domain resource and the multiplexing mode of the time domain resource.

The control messages sent on the N sets of time domain resources may be sent with different powers in consideration of coverage differences in different directions. In order to accurately and fairly perform CSI measurement, the transmission powers corresponding to the CSI measurement need to be determined according to the configuration of the transmitting end.

The sending sequence and/or scrambling sequence corresponding to the N groups of time domain resources may be determined according to the configuration of the sending end.

The receiving end may determine whether to perform measurement feedback according to an indication of the transmitting end, that is, whether the transmitting end needs to perform measurement according to the first type CSI measurement reference information, and the function needs to configure the enabling signaling at the transmitting end, which may be considered as an auxiliary mode.

Through the technical scheme in the preferred implementation of the invention, the data/control information or the corresponding demodulation pilot frequency thereof is effectively utilized for channel measurement, and the change condition of the beam can be monitored, so that the periodic beam training does not need to be very frequent and better transmission robustness can be obtained.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 3

The method embodiment provided in embodiment 3 of the present application may be executed in a device such as a base station. Taking the operation on the base station as an example, fig. 9 is a hardware structure block diagram of the base station of a pilot frequency transmission method according to the embodiment of the present invention. As shown in fig. 9, the base station 90 may include one or more (only one shown) processors 92 (the processors 92 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 94 for storing data, and a transmission device 96 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 9 is only an illustration and is not intended to limit the structure of the electronic device. For example, base station 90 may also include more or fewer components than shown in fig. 9, or have a different configuration than shown in fig. 9.

The memory 94 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the channel measurement feedback method in the embodiment of the present invention, and the processor 92 executes various functional applications and data processing by running the software programs and modules stored in the memory 94, so as to implement the method described above. The memory 94 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 94 may further include memory located remotely from the processor 92, which may be connected to the base station 90 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 96 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the base station 90. In one example, the transmission device 96 includes a Network adapter (NIC) that can be connected to other Network devices via a base station to communicate with the internet. In one example, the transmission device 96 may be a Radio Frequency (RF) module, which is used to communicate with the internet by wireless means.

In this embodiment, a channel measurement feedback method operating in the above base station is provided, and fig. 10 is a flowchart three of the channel measurement feedback method according to the embodiment of the present invention, as shown in fig. 10, the flowchart includes the following steps:

step S1002, determining a first pilot signal set and a second pilot signal set, wherein the first pilot signal set is used for Channel State Information (CSI) measurement and feedback, the second pilot signal set has an association relation with a data channel or a control channel, the first pilot signal set comprises pilot signals sent on P pilot resources, the second pilot signal set comprises pilot signals sent on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources;

step S1004, sending the pilot signals in the first pilot set and the second pilot set to the receiving end.

Optionally, the reference demodulation relationship is: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel.

Optionally, the linear combining manner of the linear combining may be agreed or indicated by the sending end, and the linear combining manner may be indicated for different transport layers respectively.

Optionally, the pilot resource includes at least one of: pilot port (set) resources, pilot symbol (set) resources, pilot beam (set) resources, pilot sequence (set) resources.

Optionally, before step S1002, the method may further include: configuring the value of P in the first pilot signal set; and/or configuring the transmission resource indication parameters of the P pilot signals contained in the first pilot signal set.

Optionally, in step S1004, pilot signals in the first pilot set and the second pilot set may be sent to the receiving end in various manners, for example, the pilot signals in the first pilot set and the second pilot set may be directly sent to the receiving end. For another example, the configuration signaling may be sent to the receiving end, where the configuration signaling is used to instruct the receiving end to determine that Q pilot signals form the second pilot signal set among the P pilot signals in the first pilot signal set. By means of sending the configuration signaling, the data volume sent by the sending end to the receiving end is reduced, network resource occupation is reduced, network congestion is avoided, and the operation efficiency of the network is improved.

Optionally, the pilots included in the second pilot signal set may be Q pilots that are located after the time-domain transmission position in the first pilot set, may also be Q pilots that are located before the time-domain transmission position in the first pilot set, may also be Q pilots that are located in the first pilot set and whose time-domain transmission position is closest to the control channel or the data channel, and may also be Q pilots determined by performing calculation according to a preset rule.

Optionally, the pilot included in the second pilot signal set may be determined according to the number of transmission layers of data or control, and the value of Q may also be determined according to the number of transmission layers of data or control.

Optionally, in step S1004, sending pilot signals in the first pilot set and the second pilot set to a receiving end may include: and configuring the value indication information of the Q to a receiving end, or calculating by the receiving end according to a preset rule and the P value.

Optionally, the linear combining manner, the configured value of P, the resource indication parameter, the configuration signaling, or the value indication information of Q may be sent together with the first pilot set and the second pilot set, or may be sent in different messages. The specific transmission method may be set as needed.

The transmitting end configures two types of pilot signal sets, which are a first pilot signal set and a second pilot signal set, respectively, as shown in fig. 11.

The first pilot signal set comprises pilot signals transmitted on P pilot resources. This type of pilot is used for CSI measurement and feedback, and the terminal performs based on P pilot resources.

The second set of pilot signals comprises pilot signals transmitted on Q pilot resources, which type of pilot is associated with a control or data channel, where the association may be for reference demodulation of data or control. The reference demodulation here may be: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel. The linear combining mode may be indicated separately for different transport layers. The reference demodulation herein is explained below by way of example.

Example 1: 4 pilot ports are sent as a first set of pilot signals, and then 1 of the pilot ports is indicated as a demodulation pilot port.

Example 2: transmitting 4 pilot ports as a first pilot signal set, then indicating 2/or 3/or 4 pilot ports as demodulation pilot ports (i.e. a second pilot signal set) in a manner of linearly combining several pilot ports for demodulation of one transmission layer,

example 3: and sending 4 pilot ports as a first pilot signal set, and then indicating that the 1 st and 2 nd pilot ports are demodulation pilot ports in a demodulation mode that several pilot ports are linearly combined and used for demodulation of one transmission layer, and the 3 rd and 4 th pilot ports are demodulation pilot ports in a demodulation mode that several pilot ports are linearly combined and used for demodulation of another transmission layer.

The linear combination mode may be a convention, or may be indicated by the sending end.

For efficient resource utilization, the Q pilot resources mentioned here are subsets of the P pilot resources; the pilot resources may include one or several of the following resources: pilot port (set) resources, pilot symbol (set) resources, pilot beam (set) resources, pilot sequence (set) resources. The second set of pilot signals is a subset of the first set of pilot signals.

The sending end sends pilot signals in the first pilot frequency set and the second pilot frequency set.

Before the foregoing process, the sending end may configure a value of P in the first pilot signal set, may also configure sending resource positions of P pilot resource groups, and needs to configure sending resource indication parameters of P pilot signals included in the first pilot signal set.

The transmitting end may further send configuration signaling for instructing the receiving end to determine, among the P pilot signals in the first pilot signal set, that Q pilot signals constitute the second pilot signal set.

It should be noted that how to determine Q pilot signals from P pilot signals in the first pilot signal set to form the second pilot signal set is a very flexible manner, and may be configured by signaling at the transmitting end, or determined by some implicit rules, or a combination of the two. The following examples are given.

The sending end indicates how to select Q pilots from the P pilots by signaling, which may be indicated by signaling, where 2P bits per log2 indicate one pilot, log2P bits are needed if Q is 1, and 2log2P bits are needed if Q is 2; in this case, Q pilots can be flexibly selected to form the second set of pilots for demodulation of data or control information.

The value of Q may be determined according to the number of transmission layers or according to the transmission mode, or may be configured by the base station through signaling.

An implicit method is to make sure that the pilots included in the second pilot signal set are Q pilots in the first pilot set before the time domain transmission position, or make sure that the pilots included in the second pilot signal set are Q pilots in the first pilot set after the time domain transmission position, or make sure that the pilots included in the second pilot signal set are Q pilots in the first pilot set closest to the control channel or the data channel in the time domain transmission position.

By the technical scheme of the preferred embodiment of the invention, the demodulation pilot frequency is effectively utilized for channel measurement, and the change condition of the beam can be monitored, so that the periodic beam training does not need to be very frequent, and better transmission robustness can be obtained.

Through the technical scheme in the preferred implementation of the invention, the data/control information or the corresponding demodulation pilot frequency thereof is effectively utilized for channel measurement, and the change condition of the beam can be monitored, so that the periodic beam training does not need to be very frequent, and better transmission robustness can be obtained.

Example 4

The method embodiment provided in embodiment 4 of the present application may be implemented in a terminal as shown in fig. 3.

In this embodiment, a channel measurement feedback method operating in the terminal is provided, and fig. 12 is a fourth flowchart of the channel measurement feedback method according to the embodiment of the present invention, as shown in fig. 12, the flowchart includes the following steps:

step S1202, determining a first pilot signal set for CSI measurement and feedback, wherein the first pilot signal set includes P pilot signals;

step S1204, determining a second pilot signal set used for reference demodulation of the data channel or the control channel, where the second pilot signal set includes Q pilot signals, and the second pilot signal set is a subset of the first pilot signal set.

Step S1206, receives P pilot signals included in the first pilot signal set according to the first configuration information, and performs CSI measurement feedback.

Step S1208, performing reference demodulation on the data channel or the control channel according to the Q pilot signals in the second pilot signal set.

Optionally, in step S1204, the second set of pilot signals for data channel or control channel reference demodulation may be determined in various ways. For example, a subset may be determined from the first pilot signal set as the second pilot signal set according to a distance between the pilot transmission resource location and the data channel or the control channel, or a subset may be determined from the first pilot signal set as the second pilot signal set according to the number of transmission layers of the control channel or the data channel, or a subset may be determined from the first pilot signal set as the second pilot signal set according to configuration signaling of the transmitting end.

Optionally, performing reference demodulation on the data channel or the control channel according to Q pilot signals in the second pilot signal set includes: and linearly combining the pilot ports in the second pilot signal set and then demodulating the data channel or the control channel.

Optionally, a linear combination manner for linearly combining the pilot ports in the second pilot signal set may be indicated by a configuration of the transmitting end.

Optionally, the value of Q may be determined in various ways, for example, may be determined according to a configuration signaling of a transmitting end, for example, may also be determined according to a type of a channel, and for example, may also be determined according to the number of transmission layers.

The receiving end determines a first pilot signal set for CSI measurement and feedback, wherein the first pilot signal set comprises P pilot signals. The receiving end determines a second pilot signal set for reference demodulation of a data channel or a control channel, wherein the second pilot signal set comprises Q pilot signals, and the second pilot signal set is a subset of the first pilot signal set. And the receiving end receives P pilot signals contained in the first pilot signal set according to the first configuration information, and performs CSI measurement and feedback. And the receiving end performs reference demodulation of the data channel or the control channel according to the Q pilot signals in the second pilot signal set.

The reference demodulation here may be: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel. There may be a linear combination for the different transport layers. The reference demodulation herein is explained below by way of example.

Example 1: there are 4 pilot ports in the first pilot signal set, and 1 of them is a demodulation pilot port.

Example 2: there are 4 pilot ports in the first pilot signal set, 2/or 3/or 4 pilot ports are demodulation pilot ports (i.e. the second pilot signal set) and the demodulation mode is to use several pilot ports after linear combination for demodulation of one transmission layer,

there are 4 pilot ports in the first pilot signal set, wherein the 1 st and 2 nd pilot ports are demodulation pilot ports and the demodulation mode is to use several pilot ports for demodulation of one transmission layer after linear combination, and the 3 rd and 4 th pilot ports are demodulation pilot ports and the demodulation mode is to use several pilot ports for demodulation of another transmission layer after linear combination.

The second set of pilot signals may be a proper subset of the first set of pilot signals. That is, P > Q.

The receiving end determines a subset from the first pilot signal set as a second pilot signal set according to the distance between the pilot sending resource position and the data channel or the control channel. The specific determination means may include the following ones.

The receiving end may determine a subset as the second pilot signal set from the first pilot signal set according to the number of transmission layers of the control channel or the data channel. For example, if the number of layers is 1, Q is 1, and if the number of layers is 2, Q is 2, and the number of layers is equal to Q. The Q value may also be a half of the number of layers, a root mean square, or the like, and the specific manner may be determined by actual conditions.

The receiving end may also determine a subset from the first pilot signal set as the second pilot signal set according to the configuration signaling of the transmitting end. For example, the transmitting end indicates the beam pilots 5 and 6 as reference demodulation pilots, or the transmitting end indicates the beam pilot 2 as reference demodulation pilots. The receiving end uses the indicated beam pilot frequency to perform reference demodulation. The value of Q may be determined according to the configuration signaling of the sending end, or the value of Q may be determined according to the type of the channel, for example, the control channel is 1, and the data channel is the same as the number of transmission layers; the value of Q can also be determined directly from the number of transmission layers.

Example 5

The method embodiment provided in embodiment 5 of the present application may be implemented in a terminal as shown in fig. 3 or a base station as shown in fig. 9.

In this embodiment, a channel measurement feedback method operating in the above base station is provided, and fig. 13 is a flowchart five of the channel measurement feedback method according to the embodiment of the present invention, as shown in fig. 13, the flowchart includes the following steps:

step S1302, sending N groups of first type information, where the N groups of first type information occupy N groups of different time domain resources, and the first type information is at least one of the following: data information and/or control information, and reference demodulation pilot frequency corresponding to the data information and/or reference demodulation pilot frequency corresponding to the control information;

step S1304, sending a configuration signaling to the receiving end, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used for the receiving end to perform CSI measurement feedback.

Optionally, after sending the configuration signaling to the receiving end, the method may further include: receiving a CSI measurement result fed back by the receiving end after CSI measurement is carried out according to the configuration signaling; and determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

Optionally, the CSI measurement result may have various forms, for example, the CSI measurement result may include a channel quality measurement result of each channel, and the corresponding beam pilot is selected for the receiving end according to the channel quality of each channel of the CSI measurement result. For another example, the index and/or quality information of the beam pilot selected by the receiving end may be included, and the beam pilot selected by the receiving end is determined according to the index and/or quality information of the beam pilot in the CSI measurement result.

Alternatively, the value of N' may be determined according to the number of transmission layers for data or control.

In this embodiment, a channel measurement feedback method operating in the terminal is further provided, and fig. 14 is a sixth flowchart of the channel measurement feedback method according to the embodiment of the present invention, as shown in fig. 14, where the flowchart includes the following steps:

step S1402, receiving N groups of first type information, where the N groups of first type information occupy N groups of different time domain resources, and the first type information is at least one of the following: data information and/or control information, and reference demodulation pilot frequency corresponding to the data information and/or reference demodulation pilot frequency corresponding to the control information;

step S1404, determining, according to the configuration of the transmitting end, N' sets of the N sets of first-type information to be used for CSI measurement feedback.

Optionally, before step S1404, the method may further include: and receiving configuration signaling of a transmitting end, wherein the configuration signaling is used for indicating that N' groups in the N groups of first-class information are used for CSI measurement feedback.

Optionally, before step S1404, the method may further include: and feeding back a CSI measurement result to the sending end, wherein the CSI measurement result carries a beam index and/or quality information corresponding to the beam pilot selected by the receiving end.

Optionally, before feeding back the CSI measurement result to the transmitting end, the method may further include: comparing the CSI measurement result with reference CSI information, and judging whether the first type of CSI measurement result needs to be fed back or not; and feeding back the CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

Through the steps, the demodulation pilot frequency is used for channel measurement, the change condition of the wave beam can be monitored, so that the periodic wave beam training can obtain better transmission robustness without frequent operation, the problem of low wave beam training efficiency caused by the need of a large amount of wave beam pilot frequency measurement overhead in the related technology is solved, and the wave beam training efficiency is improved.

The sending end sends N groups of first-class information, the N groups of first-class information occupy N groups of different time domain resources, and the first-class information can be data information and/or control information, and also can be reference demodulation pilot frequency corresponding to the data information and/or reference demodulation pilot frequency corresponding to the control information.

The sending end configures N 'groups in the N groups of first-class information for the receiving end to perform CSI measurement feedback, or configures N' groups of time domain resource positions in the N groups of time domain resources for CSI measurement. As shown in fig. 15.

Here, the data block selection may be configured by the transmitting end, and the information of N 'and the position information of N' data blocks/control blocks are indicated by the configuration information.

In addition to the above, CSI measurement feedback may also be performed using the demodulated pilots of the data block or the control block.

The receiving end receives N groups of first-class information, wherein the N groups of first-class information occupy N groups of different time domain resources, first-class information data information and/or control information.

And the receiving end determines N' groups of the N groups of first-class information to be used for CSI measurement feedback according to the configuration of the transmitting end.

Example 6

In this embodiment, a channel measurement feedback device is provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 16 is a block diagram of a first structure of a channel measurement feedback apparatus according to an embodiment of the present invention, as shown in fig. 16, the apparatus includes:

a first determining module 162, configured to determine a detection parameter of a first type of CSI measurement reference information, where the first type of CSI measurement reference information is at least one of: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal;

a detecting module 164, connected to the first determining module 162, for detecting the first CSI measurement reference information according to the detection parameter;

an obtaining module 166, connected to the detecting module 164, configured to perform CSI measurement based on the first type CSI measurement reference information when the first type CSI measurement reference information is detected, so as to obtain a first type CSI measurement result;

a feedback module 168, connected to the obtaining module 166, configured to feed back the first CSI measurement result to the transmitting end.

Fig. 17 is a block diagram of a second structure of a channel measurement feedback apparatus according to an embodiment of the present invention, and as shown in fig. 17, the apparatus includes, in addition to all modules shown in fig. 16:

a determining module 172, configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back;

a second determining module 174, connected to the determining module 172, configured to determine to feed back the first CSI measurement result to the sending end when the determination result of the determining module is that feedback is needed.

Optionally, the determining module 172 may be further configured to determine whether the first type CSI measurement result needs to be fed back according to the channel quality offset parameter.

Optionally, the feedback module 168 may be further configured to feed back a difference between the first CSI measurement result and the reference CSI information to the transmitting end.

In the present embodiment, a terminal is also provided, and the structure of the terminal is shown in fig. 3. The terminal includes: a processor 32 and a transmission device 36. The terminal will be explained below.

A processor 32, configured to determine a detection parameter of first type CSI measurement reference information, where the first type CSI measurement reference information is at least one of: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; the CSI measurement device is also used for carrying out CSI measurement based on the first type of CSI measurement reference information under the condition that the first type of CSI measurement reference information is detected, and obtaining a first type of CSI measurement result;

and a transmission device 36, connected to the processor 32, and configured to feedback the first CSI measurement result to the sending end through an interface.

Optionally, the processor 32 may be further configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back; the transmission device 36 may be further configured to feed back the first CSI measurement result to the sending end through the interface when the determination result of the processor is that feedback is needed.

Optionally, the processor 32 may be further configured to determine whether the first type CSI measurement result needs to be fed back according to the channel quality offset parameter.

Optionally, the processor 32 is further configured to determine a difference between the first type CSI measurement result and the reference CSI information; the transmission device 36 is further configured to feed back the determined difference value to the sending end through the interface.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 7

In this embodiment, a channel measurement feedback apparatus is provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details of which have been already described are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 18 is a block diagram of a third configuration of a channel measurement feedback apparatus according to an embodiment of the present invention, and as shown in fig. 18, the apparatus includes:

a first determining module 182, configured to determine first type channel state information, CSI, measurement reference information, where the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information;

a measuring module 184, connected to the first determining module 182, for measuring the first CSI measurement reference information on the N sets of time domain resources;

an obtaining module 186, connected to the measuring module 184, for obtaining CSI information corresponding to the N sets of time domain resources;

and a selecting module 188, connected to the obtaining module 186, configured to select M sets of CSI information from the N sets of CSI information and feed back the M sets of CSI information to the sending end.

Fig. 19 is a block diagram of a fourth structure of a channel measurement feedback apparatus according to an embodiment of the present invention, as shown in fig. 19, the apparatus includes, in addition to all modules shown in fig. 18:

a second determining module 192, configured to determine, according to the configuration of the sending end, sending powers corresponding to the N sets of the time domain resources, respectively, and/or determine, according to the configuration of the sending end, sending sequences and/or scrambling sequences corresponding to the N sets of the time domain resources, respectively.

Fig. 20 is a block diagram of a structure of a channel measurement feedback apparatus according to an embodiment of the present invention, as shown in fig. 20, the apparatus includes, in addition to all modules shown in fig. 18:

a judging module 202, configured to judge whether measurement feedback is needed according to the instruction of the sending end;

the selecting module 188 is connected to the determining module 202, and is further configured to select the M sets of CSI information from the N sets of CSI information and feed back the M sets of CSI information to the sending end when the determination result of the determining module is that measurement feedback is required.

A processor 32 configured to determine first-type channel state information, CSI, measurement reference information, wherein the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; the CSI measurement reference information acquisition module is also used for measuring the first type of CSI measurement reference information on N groups of time domain resources, acquiring CSI information corresponding to the N groups of time domain resources, and selecting M groups of CSI information from the N groups of CSI information;

and a transmission device 36, configured to feed back the selected M sets of CSI information to the sending end through an interface.

Optionally, the processor 32 is further configured to determine, according to the configuration of the sending end, sending powers corresponding to the N sets of time domain resources, respectively, and/or determine, according to the configuration of the sending end, sending sequences and/or scrambling sequences corresponding to the N sets of time domain resources, respectively.

Optionally, the processor 32 is further configured to determine whether to perform measurement feedback according to the instruction of the sending end, and select the M sets of CSI information from the N sets of CSI information when the determination result is that the measurement feedback is performed.

Example 8

In this embodiment, a pilot sending apparatus is provided, which is used to implement the foregoing embodiments and preferred embodiments, and the description of the apparatus is omitted for brevity. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware or a combination of software and hardware is also possible and contemplated.

Fig. 21 is a block diagram of a first structure of a pilot transmitting apparatus according to an embodiment of the present invention, as shown in fig. 21, the apparatus includes:

a determining module 212, configured to determine a first pilot signal set and a second pilot signal set, where the first pilot signal set is used for CSI measurement and feedback, the second pilot signal set is associated with a data channel or a control channel, the first pilot signal set includes pilot signals transmitted on P pilot resources, the second pilot signal set includes pilot signals transmitted on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources;

a sending module 214, connected to the determining module 212, configured to send pilot signals in the first pilot set and the second pilot set to a receiving end.

Fig. 22 is a block diagram of a second structure of a pilot transmitting apparatus according to an embodiment of the present invention, and as shown in fig. 22, the apparatus includes, in addition to all modules shown in fig. 21:

a configuration module 222, configured to configure a value of the P in the first pilot signal set; and/or, configuring a transmission resource indication parameter of P pilot signals included in the first pilot signal set.

Fig. 23 is a block diagram of a structure of a transmission module 214 of a pilot transmission apparatus according to an embodiment of the present invention, and as shown in fig. 23, the transmission module 214 includes:

a sending unit 232, configured to send a configuration signaling to the receiving end, where the configuration signaling is used to instruct the receiving end to determine, from the P pilot signals in the first pilot signal set, Q pilot signals to form the second pilot signal set.

In this embodiment, a base station is also provided, and the structure of the base station is shown in fig. 9. The base station includes: a processor 92 and a transmission device 96, wherein,

a processor 92, configured to determine a first pilot signal set and a second pilot signal set, where the first pilot signal set is used for channel state information CSI measurement and feedback, the second pilot signal set has an association relationship with a data channel or a control channel, the first pilot signal set includes pilot signals sent on P pilot resources, the second pilot signal set includes pilot signals sent on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources;

a transmission device 96, configured to send pilot signals in the first pilot set and the second pilot set to a receiving end through an interface.

Optionally, the processor 92 may be further configured to configure a value of P in the first pilot signal set, and/or configure a transmission resource indication parameter of P pilot signals included in the first pilot signal set.

Optionally, the transmitting device 96 may be further configured to send a configuration signaling to the receiving end, where the configuration signaling is used to instruct the receiving end to determine, among the P pilot signals in the first pilot signal set, that the Q pilot signals constitute the second pilot signal set.

In this embodiment, there is further provided a channel measurement feedback apparatus, and fig. 24 is a block diagram six of a structure of the channel measurement feedback apparatus according to the embodiment of the present invention, as shown in fig. 24, the apparatus includes:

a first determining module 242, configured to determine a first pilot signal set used for CSI measurement and feedback, where the first pilot signal set includes P pilot signals;

a second determining module 244, connected to the first determining module 242, for determining a second pilot signal set for data channel or control channel reference demodulation, wherein the second pilot signal set includes Q pilot signals, and the second pilot signal set is a subset of the first pilot signal set;

a feedback module 246, connected to the second determining module 244, configured to receive P pilot signals included in the first pilot signal set according to the first configuration information, and perform CSI measurement feedback;

a demodulation module 248, connected to the feedback module 246, for performing reference demodulation of the data channel or the control channel according to the Q pilot signals in the second set of pilot signals.

Fig. 25 is a block diagram illustrating a structure of the second determining module 244 of the channel measurement feedback apparatus according to an embodiment of the present invention, as shown in fig. 25, the second determining module 244 includes:

a first determining unit 252, configured to determine a subset from the first pilot signal set as a second pilot signal set according to a distance between the pilot transmission resource location and the data channel or the control channel; or, the method is used for determining a subset from the first pilot signal set as a second pilot signal set according to the transmission layer number of the control channel or the data channel; or, the method is used for determining a subset from the first pilot signal set as the second pilot signal set according to the configuration signaling of the transmitting end.

Fig. 26 is a block diagram illustrating a second determining module 244 of the channel measurement feedback apparatus according to the embodiment of the present invention, and as shown in fig. 26, the second determining module 244 includes:

a second determining unit 262, configured to determine the value of Q according to a configuration signaling or a type of a channel or a number of transmission layers at a sending end.

In this embodiment, a terminal is also provided, and the structure of the base station is shown in fig. 3. The terminal includes: a processor 32 and a transmission device 36, wherein,

a processor 32 configured to determine a first pilot signal set used for CSI measurement and feedback, where the first pilot signal set includes P pilot signals; the method further comprises determining a second set of pilot signals for data channel or control channel reference demodulation, wherein the second set of pilot signals comprises Q pilot signals, and the second set of pilot signals is a subset of the first set of pilot signals; further configured to perform CSI measurement according to P pilot signals included in the first pilot signal received by the transmission apparatus 36; the reference demodulation of the data channel or the control channel is carried out according to Q pilot signals in the second pilot signal set;

a transmitting device 36, configured to receive, through the first interface, P pilot signals included in the first pilot signal set according to the first configuration information; and the second interface is used for feeding back the CSI measurement result.

Optionally, the processor 32 is further configured to determine a subset from the first set of pilot signals as a second set of pilot signals according to a distance between the pilot transmission resource location and the data channel or the control channel; or, determining a subset from the first pilot signal set as a second pilot signal set according to the number of transmission layers of the control channel or the data channel; or, the method is used for determining a subset from the first pilot signal set as the second pilot signal set according to the configuration signaling of the transmitting end.

Optionally, the processor 32 may be further configured to determine a value of Q according to a configuration signaling or a type of a channel or a number of transmission layers at the transmitting end.

In this embodiment, a channel measurement feedback system is further provided, fig. 27 is a first structural block diagram of the channel measurement feedback system according to the embodiment of the present invention, and as shown in fig. 27, the channel measurement feedback system includes: the base station comprises the following components:

a first processor 272, configured to determine a first pilot signal set and a second pilot signal set, where the first pilot signal set is used for CSI measurement and feedback, the second pilot signal set has an association relationship with a data channel or a control channel, the first pilot signal set includes pilot signals sent on P pilot resources, the second pilot signal set includes pilot signals sent on Q pilot resources, and the Q pilot resources are a subset of the P pilot resources;

a first transmitting device 274, connected to the first processor 272, for transmitting pilot signals in the first pilot set and the second pilot set to the terminal through the interface;

the terminal includes:

a second processor 276 for determining a first set of pilot signals for channel state information, CSI, measurement and feedback; also for determining a second set of pilot signals for data channel or control channel reference demodulation;

a second transmitting device 278, connected to the second processor 276, for receiving the P pilot signals included in the first pilot signal set through the first interface according to the first configuration information; and the second interface is used for feeding back the CSI measurement result.

Optionally, the first transmitting device 274 may be further configured to send configuration signaling, where the configuration signaling is used to instruct the terminal to determine, among P pilot signals in the first pilot signal set, that Q pilot signals constitute the second pilot signal set;

a second transmitting means 278, further configured to receive the configuration signaling;

a second processor 276, configured to determine Q pilot signals from the P pilot signals in the first set of pilot signals to form a second set of pilot signals according to the configuration signaling.

Example 9

Fig. 28 is a block diagram of a seventh configuration of a channel measurement feedback apparatus according to an embodiment of the present invention, as shown in fig. 28, the apparatus includes:

the first sending module 282 is configured to send N sets of first-type information to the receiving end, where the N sets of first-type information occupy N sets of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

a second sending module 284, connected to the first sending module 282, configured to send a configuration signaling to the receiving end, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used by the receiving end to perform CSI measurement feedback.

Fig. 29 is a block diagram eight illustrating a structure of a channel measurement feedback apparatus according to an embodiment of the present invention, and as shown in fig. 29, the apparatus includes, in addition to all modules shown in fig. 28:

the receiving module 292 is configured to receive a CSI measurement result fed back by the receiving end after performing CSI measurement according to the configuration signaling;

a determining module 294, connected to the receiving module 292, configured to determine the beam pilot selected by the receiving end according to the received CSI measurement result.

In this embodiment, a base station is also provided, and the structure of the base station is shown in fig. 9. The terminal includes:

a processor 92, configured to determine N sets of first type information, where the N sets of first type information occupy N sets of time domain resources, and the first type information is at least one of: data and/or control information, and reference demodulation pilot frequency corresponding to the data information and/or the control information;

a transmission device 96, configured to send N sets of first type information to the receiving end through the first interface; and the configuration signaling is used for indicating N 'groups of first-class information in the N groups of first-class information or N' groups of time domain resources in the N groups of time domain resources to be used for the receiving end to perform CSI measurement feedback.

Optionally, the transmission device 96 may be further configured to receive, through the second interface, a CSI measurement result fed back by the receiving end after performing CSI measurement according to the configuration signaling;

optionally, the processor 92 may be further configured to determine the beam pilot selected by the receiving end according to the received CSI measurement result.

In this embodiment, a channel measurement feedback apparatus is provided, and fig. 30 is a block diagram nine of a structure of the channel measurement feedback apparatus according to the embodiment of the present invention, as shown in fig. 30, the apparatus includes:

a first receiving module 302, configured to receive N sets of first-type information, where the N sets of first-type information occupy N sets of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

a determining module 304, connected to the first receiving module 302, configured to determine, according to the configuration of the transmitting end, N' sets of the N sets of first-type information to be used for CSI measurement and feedback.

Fig. 31 is a block diagram illustrating a structure of a channel measurement feedback apparatus according to an embodiment of the present invention, and as shown in fig. 31, the apparatus includes, in addition to all modules shown in fig. 30:

a second receiving module 312, configured to receive a configuration signaling of the transmitting end, where the configuration signaling is used to indicate that N' sets of the N sets of the first type information are used for CSI measurement feedback.

Fig. 32 is a block diagram eleven illustrating a structure of a channel measurement feedback apparatus according to an embodiment of the present invention, and as shown in fig. 32, the apparatus includes, in addition to all modules shown in fig. 30:

the first feedback module 322 is configured to feed back a CSI measurement result to the sending end, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the receiving end.

Fig. 33 is a block diagram twelve of a structure of a channel measurement feedback apparatus according to an embodiment of the present invention, and as shown in fig. 33, the apparatus includes, in addition to all modules shown in fig. 30:

a determining module 332, configured to compare the CSI measurement result with the reference CSI information, and determine whether the first type CSI measurement result needs to be fed back;

the second feedback module 334 is connected to the determining module 332, and is further configured to feed back the CSI measurement result to the sending end when the determination result of the determining module is that feedback is needed.

In the present embodiment, a terminal is also provided, and the structure of the terminal is shown in fig. 3. The terminal includes:

a transmission device 36, configured to receive N sets of first-type information through a first interface, where the N sets of first-type information occupy N sets of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

and the processor 32 is configured to determine, according to the configuration of the transmitting end, that N' sets of the N sets of first-type information are used for performing CSI measurement and feedback.

Optionally, the transmitting device 36 may be further configured to receive, through the first interface, configuration signaling of the sending end, where the configuration signaling is used to indicate that N' sets of the N sets of the first type information are used for CSI measurement feedback.

Optionally, the transmission device 36 may be further configured to feed back, by the second interface, a CSI measurement result to the sending end, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the receiving end.

Optionally, the processor 32 may be further configured to compare the CSI measurement result with the reference CSI information, determine whether the first type CSI measurement result needs to be fed back, and feed back the CSI measurement result to the sending end when the determination result is that feedback is needed.

In this embodiment, a channel measurement feedback system is further provided, fig. 34 is a block diagram of a structure of the channel measurement feedback system according to the embodiment of the present invention, as shown in fig. 34, the channel measurement feedback system includes: the base station comprises the following components:

a first processor 342, configured to determine N sets of first type information, where the N sets of first type information occupy N sets of time domain resources, and the first type information is at least one of: data information and/or control information, and reference demodulation pilot frequencies corresponding to the data information and/or the control information;

a first transmission device 344, configured to send N sets of first type information to the terminal through the first interface; the terminal is further configured to send a configuration signaling to the receiving end through the first interface, where the configuration signaling is used to indicate that N 'sets of first-type information in the N sets of first-type information or N' sets of time domain resources in the N sets of time domain resources are used for the terminal to perform CSI measurement feedback;

the terminal includes:

a second transmission device 348, configured to receive the N sets of first type information through the second interface; a second processor 346, configured to determine, according to the configuration signaling of the base station, N' sets of the N sets of first type information to use for CSI measurement and feedback.

Optionally, the second transmitting device 348 may be further configured to feed back a CSI measurement result to the base station through the third interface, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the terminal; the first transmitting device 344 is configured to receive a CSI measurement result sent by the terminal through the fourth interface; the first processor 342 is further configured to determine a beam pilot selected by the terminal according to the CSI measurement result.

Example 10

The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

s1, determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal;

s2, detecting first CSI measurement reference information according to the detection parameters;

s3, carrying out CSI measurement based on the first type of CSI measurement reference information under the condition that the first type of CSI measurement reference information is detected, and obtaining a first type of CSI measurement result;

and S4, feeding back the first CSI measurement result to the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the detection parameter is at least one of the following: the method comprises the steps of a sequence set for transmitting or detecting first-class CSI measurement reference information, a frequency domain Resource Block (RB) position for transmitting or detecting the first-class CSI measurement reference information, a time domain symbol group position for transmitting or detecting the first-class CSI measurement reference information, a time-frequency resource position pattern set for transmitting or detecting the first-class CSI measurement reference information, and a port set for transmitting or detecting the first-class CSI measurement reference information.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the detection parameters further include at least one of: the method comprises the steps of obtaining a first type of CSI measurement reference information, and obtaining a first type of CSI measurement reference information.

Optionally, the storage medium is further arranged to store program code for performing the steps of:

the feedback of the first type CSI measurement result to the transmitting end comprises the following steps:

and feeding back the difference value between the first type CSI measurement result and the reference CSI information to the sending end.

before feeding back the first type CSI measurement result to the transmitting end, the method further includes:

s1, judging whether the first CSI measurement result needs to be fed back or not;

and S2, determining to feed back the first CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

judging whether the first type CSI measurement result needs to be fed back comprises the following steps:

and comparing the first-class CSI measurement result with the reference CSI information, and judging whether the first-class CSI measurement result needs to be fed back or not.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reference CSI information is CSI information fed back before the first type of CSI measurement result is obtained, or the reference CSI information is CSI information obtained based on data demodulation reference pilot measurement or CSI information obtained based on control demodulation reference pilot measurement before the first type of CSI measurement result is obtained.

and judging whether the first-class CSI measurement result needs to be fed back or not according to the channel quality offset parameter.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining detection parameters of first-type Channel State Information (CSI) measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following information: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal; detecting first type CSI measurement reference information according to the detection parameters; under the condition that the first type of CSI measurement reference information is detected, CSI measurement is carried out based on the first type of CSI measurement reference information to obtain a first type of CSI measurement result; judging whether a first type CSI measurement result needs to be fed back or not; and under the condition that the judgment result is that feedback is needed, feeding back the first-type CSI measurement result on a channel appointed or configured by the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; detecting first type CSI measurement reference information according to the detection parameters; under the condition that first-type CSI measurement reference information is detected, CSI measurement is carried out on the basis of the first-type CSI measurement reference information to obtain a first-type CSI measurement result; and feeding back the first type CSI measurement result to the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the detection parameter is at least one of the following: the method comprises the steps of a sequence set for transmitting or detecting first-class CSI measurement reference information, a frequency domain Resource Block (RB) position for transmitting or detecting the first-class CSI measurement reference information, a time domain symbol group position for transmitting or detecting the first-class CSI measurement reference information, a time-frequency resource position pattern set for transmitting or detecting the first-class CSI measurement reference information, and a port set for transmitting or detecting the first-class CSI measurement reference information.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the detection parameters further include at least one of: the method comprises the steps of setting a power configuration parameter set corresponding to a pilot frequency sequence for sending or detecting first-class CSI measurement reference information, setting a power configuration parameter set corresponding to a time-frequency resource position for sending or detecting the first-class CSI measurement reference information, and setting a power configuration parameter set corresponding to a port for sending or detecting the first-class CSI measurement reference information.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the feedback of the first type CSI measurement result to the transmitting end comprises the following steps: and feeding back the difference value between the first type CSI measurement result and the reference CSI information to the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: before feeding back the first type CSI measurement result to the transmitting end, the method further includes: judging whether a first type CSI measurement result needs to be fed back or not; and determining to feed back the first-type CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: judging whether the first-class CSI measurement result needs to be fed back comprises the following steps: and comparing the first-class CSI measurement result with the reference CSI information, and judging whether the first-class CSI measurement result needs to be fed back or not.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the reference CSI is CSI obtained based on second-type CSI measurement reference information, wherein the second-type CSI measurement reference information is a channel state information measurement pilot frequency, and the channel state information measurement pilot frequency is at least one of the following: a beam reference signal RS, a beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the second type of CSI measurement reference information is based on a data channel demodulation reference pilot or a control channel demodulation reference pilot before the first type of CSI measurement result is obtained.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the reference CSI information is CSI information fed back before the first type of CSI measurement result is obtained, or the reference CSI information is CSI information obtained based on data demodulation reference pilot measurement or CSI information obtained based on control demodulation reference pilot measurement before the first type of CSI measurement result is obtained.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: judging whether the first-class CSI measurement result needs to be fed back comprises the following steps: and judging whether the first-class CSI measurement result needs to be fed back or not according to the channel quality offset parameter.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the channel quality offset parameter is configured by the transmitting end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the first type of CSI demodulation reference pilot signals are demodulation reference pilot signals of a first type of receiving end and/or demodulation reference pilot signals of a second type of receiving end, wherein the second type of receiving end is other receiving ends except the first type of receiving end.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

Example 11

s1, determining first-type Channel State Information (CSI) measurement reference information, wherein the measurement reference information is at least one of the following information: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information;

s2, measuring first CSI measurement reference information on the N groups of time domain resources;

s3, obtaining CSI information corresponding to the N groups of time domain resources;

and S4, selecting M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the sending end.

the first type of CSI measurement reference information is sent on N groups of time domain resources, wherein the time domain resources are at least one of the following: time domain symbol group, transmission time interval TTI group and time slot group.

Optionally, the storage medium is further arranged to store program code for performing the steps of: and the value of N and/or the value of M is determined according to the configuration information of the transmitting end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the configuration information is sent on a physical layer broadcast channel.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the sending power corresponding to the N groups of time domain resources is determined according to the configuration of the sending end, and/or the sending sequence and/or the scrambling sequence corresponding to the N groups of time domain resources are determined according to the configuration of the sending end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: before selecting M sets of CSI information from N sets of CSI information and feeding back the M sets of CSI information to a sending end, the method further comprises the following steps: and determining whether measurement feedback is needed according to the indication of the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining first-type Channel State Information (CSI) measurement reference information, wherein the measurement reference information is at least one of the following information: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; measuring first type CSI measurement reference information on N groups of time domain resources; obtaining CSI information corresponding to N groups of time domain resources; and selecting M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the first type of CSI measurement reference information is sent on N groups of time domain resources, wherein the time domain resources are at least one of the following: time domain symbol group, transmission time interval TTI group, time slot group.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: and the value of N and/or the value of M is determined according to the configuration information of the transmitting end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: and the N groups of time domain resources are determined according to the configuration information of the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the configuration information of the N groups of time domain resources includes at least one of: the position of the time domain resource, the size of the time domain resource and the multiplexing mode of the time domain resource.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the configuration information is sent on a physical layer broadcast channel.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the sending power corresponding to the N groups of time domain resources is determined according to the configuration of the sending end, and/or the sending sequence and/or the scrambling sequence corresponding to the N groups of time domain resources are determined according to the configuration of the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: before selecting M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the transmitting end, the method further includes: and determining whether measurement feedback is needed according to the indication of the sending end.

Example 12

s1, determining a first pilot signal set and a second pilot signal set, wherein the first pilot signal set is used for Channel State Information (CSI) measurement and feedback, the second pilot signal set is associated with a data channel or a control channel, the first pilot signal set comprises pilot signals sent on P pilot resources, the second pilot signal set comprises pilot signals sent on Q pilot resources, and the Q pilot resources are subsets of the P pilot resources;

s2, pilot signals in the first pilot set and the second pilot set are sent to the receiving end.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the association is a reference demodulation relationship.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reference demodulation relationship is as follows: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel.

before configuring the first set of pilot signals and the second set of pilot signals, further comprising:

s1, configuring the value of P in the first pilot signal set; and/or the presence of a gas in the atmosphere,

s2, configuring the transmission resource indication parameters of the P pilot signals included in the first pilot signal set.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes: and sending configuration signaling to a receiving end, wherein the configuration signaling is used for indicating the receiving end to determine that Q pilot signals form a second pilot signal set from the P pilot signals in the first pilot signal set.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the pilot frequency contained in the second pilot frequency signal set is determined according to the transmission layer number of the data or the control, and/or the value of Q is determined according to the transmission layer number of the data or the control.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes: and configuring the value indication information of the Q to a receiving end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a first pilot signal set and a second pilot signal set, wherein the first pilot signal set is used for measuring and feeding back Channel State Information (CSI), the second pilot signal set is in an incidence relation with a data channel or a control channel, the first pilot signal set comprises pilot signals sent on P pilot resources, the second pilot signal set comprises pilot signals sent on Q pilot resources, and the Q pilot resources are subsets of the P pilot resources; and transmitting pilot signals in the first pilot frequency set and the second pilot frequency set to a receiving end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the association is a reference demodulation relationship.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the reference demodulation relationship is as follows: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: after determining the first set of pilot signals and the second set of pilot signals, further comprising: and configuring a linear combination mode for linearly combining the pilot ports in the second pilot signal set.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the pilot resources include at least one of: pilot port resource or pilot port group resource, pilot symbol resource or pilot symbol group resource, pilot beam resource or pilot beam group resource, pilot sequence resource or pilot sequence group resource.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: before configuring the first set of pilot signals and the second set of pilot signals, further comprising: configuring the value of P in the first pilot signal set; and/or configuring the transmission resource indication parameters of the P pilot signals contained in the first pilot signal set.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes: and sending configuration signaling to a receiving end, wherein the configuration signaling is used for indicating the receiving end to determine that Q pilot signals form a second pilot signal set in the P pilot signals in the first pilot signal set.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the second pilot signal set includes the last Q pilots at the time-domain transmission position in the first pilot set, or the second pilot signal set includes the first Q pilots at the time-domain transmission position in the first pilot set, or the second pilot signal set includes the Q pilots at the time-domain transmission position in the first pilot set that is closest to the control channel or the data channel.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the pilot frequency contained in the second pilot frequency signal set is determined according to the transmission layer number of the data or the control, and/or the value of Q is determined according to the transmission layer number of the data or the control.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the sending the pilot signals in the first pilot set and the second pilot set to the receiving end includes: and configuring the value indication information of the Q to a receiving end.

Example 13

s1, determining a first pilot signal set for CSI measurement and feedback, wherein the first pilot signal set comprises P pilot signals;

s2, determining a second pilot signal set for reference demodulation of a data channel or a control channel, wherein the second pilot signal set includes Q pilot signals, and the second pilot signal set is a subset of the first pilot signal set;

s3, receiving P pilot signals contained in the first pilot signal set according to the first configuration information, and performing CSI measurement feedback;

s4, performing reference demodulation of the data channel or the control channel according to the Q pilot signals in the second set of pilot signals.

Optionally, the storage medium is further configured to store program code for performing the following steps: the second set of pilot signals is a proper subset of the first set of pilot signals.

Optionally, the storage medium is further configured to store program code for performing the following steps:

determining a second set of pilot signals for data channel or control channel reference demodulation comprises:

s1, determining a subset from the first pilot signal set as a second pilot signal set according to the distance between the pilot transmission resource position and the data channel or the control channel; alternatively, the first and second electrodes may be,

s2, determining a subset from the first pilot signal set as a second pilot signal set according to the transmission layer number of the control channel or the data channel; alternatively, the first and second liquid crystal display panels may be,

s3, determining a subset from the first pilot signal set as a second pilot signal set according to the configuration signaling of the transmitting end.

performing reference demodulation of a data channel or a control channel according to Q pilot signals in the second set of pilot signals comprises:

and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel.

Optionally, the storage medium is further configured to store program code for performing the following steps: and a linear combination mode for carrying out linear combination on the pilot frequency ports in the second pilot frequency signal set is indicated by the configuration of the sending end.

Optionally, the storage medium is further configured to store program code for performing the following steps: the value of Q is determined according to the configuration signaling of the sending end; or, the value of Q is determined according to the type of the channel; or, the value of Q is determined according to the number of transmission layers.

Optionally, in this embodiment, the storage medium may include but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a first pilot signal set for Channel State Information (CSI) measurement and feedback, wherein the first pilot signal set comprises P pilot signals; determining a second set of pilot signals for data channel or control channel reference demodulation, wherein the second set of pilot signals comprises Q pilot signals, and the second set of pilot signals is a subset of the first set of pilot signals; receiving P pilot signals contained in the first pilot signal set according to the first configuration information, and performing CSI measurement feedback; and performing reference demodulation on the data channel or the control channel according to the Q pilot signals in the second pilot signal set.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the second set of pilot signals is a proper subset of the first set of pilot signals.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a second set of pilot signals for data channel or control channel reference demodulation comprises: determining a subset from the first pilot signal set as a second pilot signal set according to a distance between the pilot transmission resource location and the data channel or the control channel; or, determining a subset from the first pilot signal set as a second pilot signal set according to the number of transmission layers of the control channel or the data channel; or, a subset is determined from the first pilot signal set as the second pilot signal set according to the configuration signaling of the transmitting end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: performing reference demodulation of a data channel or a control channel according to Q pilot signals in the second set of pilot signals comprises: and after the pilot ports in the second pilot signal set are linearly combined, the pilot ports are used for demodulating a data channel or a control channel.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: and a linear combination mode for carrying out linear combination on the pilot frequency ports in the second pilot frequency signal set is indicated by the configuration of the sending end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the value of Q is determined according to the configuration signaling of the sending end; or, the value of Q is determined according to the type of the channel; or, the value of Q is determined according to the number of transmission layers.

Example 14

The embodiment of the invention also provides a storage medium. Alternatively, in this embodiment, the storage medium may be configured to store program codes for performing the following steps:

s1, sending N groups of first information to the receiving end, wherein N groups of first information occupy N groups of different time domain resources, and the first information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

and S2, sending a configuration signaling to the receiving end, wherein the configuration signaling is used for indicating N 'groups of first-class information in the N groups of first-class information or N' groups of time domain resources in the N groups of time domain resources to be used for the receiving end to perform CSI measurement feedback.

Optionally, the storage medium is further configured to store program code for performing the following steps: after sending the configuration signaling to the receiving end, the method further comprises: receiving a CSI measurement result fed back by a receiving end after CSI measurement is carried out according to the configuration signaling; and determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

Optionally, the storage medium is further configured to store program code for performing the following steps: the CSI measurement results include: index and/or quality information of the beam pilot selected by the receiving end.

Optionally, the storage medium is further configured to store program code for performing the following steps: the value of N' is determined according to the number of transmission layers for data or control.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: sending N groups of first-class information to a receiving end, wherein the N groups of first-class information occupy N groups of different time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information; and sending a configuration signaling to a receiving end, wherein the configuration signaling is used for indicating N 'groups of first-class information in the N groups of first-class information or N' groups of time domain resources in the N groups of time domain resources to be used for the receiving end to carry out CSI measurement feedback.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: after sending the configuration signaling to the receiving end, the method further comprises: receiving a CSI measurement result fed back by a receiving end after CSI measurement is carried out according to the configuration signaling; and determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the CSI measurement results include: index and/or quality information of the beam pilot selected by the receiving end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the value of N' is determined according to the number of transmission layers for data or control.

Example 15

s1, receiving N groups of first-class information, wherein the N groups of first-class information occupy N groups of time domain resources, and the first-class information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

s2, determining N' groups in the N groups of first-class information according to the configuration of the sending end for carrying out CSI measurement feedback.

before determining that N' sets of the N sets of first-type information are used for CSI measurement feedback according to the configuration of the transmitting end, the method further includes:

and receiving configuration signaling of a transmitting end, wherein the configuration signaling is used for indicating N' groups in the N groups of first-class information to be used for CSI measurement feedback.

after determining that N' sets of the N sets of first-type information are used for CSI measurement feedback according to the configuration of the transmitting end, the method further includes:

and feeding back a CSI measurement result to the sending end, wherein the CSI measurement result carries a beam index and/or quality information corresponding to the beam pilot selected by the receiving end.

before feeding back the CSI measurement result to the transmitting end, the method further includes:

s1, comparing the CSI measurement result with the reference CSI information, and judging whether the first type of CSI measurement result needs to be fed back or not;

and S2, feeding back the CSI measurement result to the sending end when the judgment result is that feedback is needed.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: receiving N groups of first-class information, wherein the N groups of first-class information occupy N groups of time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

and determining N' groups of the N groups of first-class information according to the configuration of the sending end for carrying out CSI measurement feedback.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: before determining that N' sets of the N sets of first-type information are used for CSI measurement feedback according to the configuration of the transmitting end, the method further includes: and receiving configuration signaling of a transmitting end, wherein the configuration signaling is used for indicating N' groups in the N groups of first-class information to be used for CSI measurement feedback.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: after determining that N' sets of the N sets of first-type information are used for CSI measurement feedback according to the configuration of the transmitting end, the method further includes: and feeding back a CSI measurement result to the sending end, wherein the CSI measurement result carries a beam index and/or quality information corresponding to the beam pilot selected by the receiving end.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: before feeding back the CSI measurement result to the transmitting end, the method further includes: comparing the CSI measurement result with reference CSI information, and judging whether the first type of CSI measurement result needs to be fed back or not; and feeding back the CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A channel measurement feedback method, comprising:

determining detection parameters of first-type CSI measurement reference information, wherein the first-type CSI measurement reference information is at least one of the following: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal;

detecting the first type CSI measurement reference information according to the detection parameters;

under the condition that the first type of CSI measurement reference information is detected, CSI measurement is carried out based on the first type of CSI measurement reference information to obtain a first type of CSI measurement result;

comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back, wherein a demodulation reference pilot signal in the first type CSI measurement reference information is a demodulation reference pilot signal of a first type receiving end and/or a demodulation reference pilot signal of a second type receiving end, the second type receiving end is a receiving end other than the first type receiving end, the reference CSI information is CSI obtained based on the second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS;

and determining to feed back the first type of CSI measurement result to a sending end and feed back the first type of CSI measurement result to the sending end under the condition that the judgment result is that the feedback is needed.

2. The method of claim 1, wherein the detection parameter is at least one of: the method comprises the steps of collecting a sequence for transmitting or detecting the first type of CSI measurement reference information, collecting a frequency domain Resource Block (RB) position for transmitting or detecting the first type of CSI measurement reference information, a time domain symbol group position for transmitting or detecting the first type of CSI measurement reference information, collecting a time-frequency resource position pattern for transmitting or detecting the first type of CSI measurement reference information, and collecting a port for transmitting or detecting the first type of CSI measurement reference information.

3. The method of claim 2, wherein the detection parameters further comprise at least one of: the power configuration parameter set corresponding to the pilot frequency sequence for sending or detecting the first type of CSI measurement reference information, the power configuration parameter set corresponding to the time-frequency resource position for sending or detecting the first type of CSI measurement reference information, and the power configuration parameter set corresponding to the port for sending or detecting the first type of CSI measurement reference information.

4. The method of claim 1, wherein feeding back the first type CSI measurement result to the transmitting end comprises:

5. The method of claim 1, wherein the second type of CSI measurement reference information is based on a data channel demodulation reference pilot or a control channel demodulation reference pilot before the first type of CSI measurement result is obtained.

6. The method according to claim 4 or 1, wherein the reference CSI information is CSI information fed back before the first type CSI measurement result is obtained, or the reference CSI information is CSI information obtained based on data demodulation reference pilot measurement or CSI information obtained based on control demodulation reference pilot measurement before the first type CSI measurement result is obtained.

7. The method of claim 1, wherein determining whether the first type of CSI measurement result needs to be fed back comprises:

and judging whether the first type CSI measurement result needs to be fed back or not according to the channel quality offset parameter.

8. The method of claim 7, wherein the channel quality offset parameter is configured by the transmitting end.

9. A channel measurement feedback method, comprising:

determining first-type Channel State Information (CSI) measurement reference information, wherein the measurement reference information is at least one of the following information: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information;

measuring the first type CSI measurement reference information on N groups of time domain resources;

obtaining CSI information corresponding to the N groups of time domain resources;

selecting M groups of CSI information from the N groups of CSI information, wherein the first type of CSI measurement result comprises the M groups of CSI information;

comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back, wherein a demodulation reference pilot signal in the first type CSI measurement reference information is a demodulation reference pilot signal of a first type receiving terminal and/or a demodulation reference pilot signal of a second type receiving terminal, the second type receiving terminal is other receiving terminals except the first type receiving terminal, the reference CSI information is CSI obtained based on the second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS; and determining to feed back the first type CSI measurement result to a sending end and feeding back the first type CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed.

10. The method of claim 9, wherein the first type of CSI measurement reference information is transmitted on the N sets of time domain resources, wherein the time domain resources are at least one of: time domain symbol group, transmission time interval TTI group, time slot group.

11. The method of claim 9, wherein the value of N and/or the value of M is determined according to configuration information of the transmitting end.

12. The method of claim 9, wherein the N sets of time domain resources are determined according to configuration information of the transmitting end.

13. The method of claim 12, wherein the configuration information of the N sets of time domain resources comprises at least one of: the position of the time domain resource, the size of the time domain resource and the multiplexing mode of the time domain resource.

14. The method according to claim 11 or 12, wherein the configuration information is transmitted in a physical layer broadcast channel.

15. The method according to claim 9, wherein the transmission powers corresponding to the N sets of time domain resources, respectively, are determined according to the configuration of the transmitting end, and/or the transmission sequences and/or the scrambling sequences corresponding to the N sets of time domain resources, respectively, are determined according to the configuration of the transmitting end.

16. The method of claim 9, wherein before selecting the M sets of CSI information from the N sets of CSI information and feeding back the M sets of CSI information to the transmitting end, further comprising:

and determining whether measurement feedback is needed according to the indication of the sending end.

17. A channel measurement feedback method, comprising:

sending N groups of first-class information to a receiving end, wherein the N groups of first-class information occupy N groups of different time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

sending a configuration signaling to the receiving end, wherein the configuration signaling is used for indicating N 'groups of first-type information in the N groups of first-type information or N' groups of time domain resources in the N groups of time domain resources to be used for the receiving end to perform CSI measurement feedback;

and appointing or configuring reference CSI information with the receiving end, wherein the reference CSI information is CSI obtained based on second type CSI measurement reference information, the reference CSI information is used for comparing with a first type CSI measurement result, the comparison result is used for judging whether the receiving end needs to feed back the first type CSI measurement result, and the first type CSI measurement result is a CSI measurement result obtained by CSI measurement based on the first type information.

18. The method of claim 17, further comprising, after sending the configuration signaling to the receiving end:

receiving a CSI measurement result fed back by the receiving end after the CSI measurement is carried out according to the configuration signaling;

and determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

19. The method of claim 18, wherein the CSI measurement result comprises: index and/or quality information of the beam pilot selected by the receiving end.

20. The method according to any of claims 17 to 19, wherein the value of N' is determined according to the number of transmission layers for data or control.

21. A channel measurement feedback method, comprising:

receiving N groups of first-class information, wherein the N groups of first-class information occupy N groups of time domain resources, and the first-class information is at least one of the following information: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

determining N' groups in the N groups of first-class information to be used for measuring and feeding back Channel State Information (CSI) according to the configuration of a sending end;

performing CSI measurement on the basis of the N' groups of the first type information to obtain a first type CSI measurement result;

and comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back or not, wherein the reference CSI information is CSI obtained based on second type CSI measurement reference information.

22. The method of claim 21, further comprising, before determining that the N' sets of the N sets of first type information are used for the CSI measurement feedback according to the configuration of the transmitting end:

receiving a configuration signaling of the transmitting end, wherein the configuration signaling is used for indicating that the N' groups of the N groups of first-type information are used for performing the CSI measurement feedback.

23. The method of claim 21 or 22, further comprising, after determining that the N' sets of the N sets of first type information are used for the CSI measurement feedback according to the configuration of the transmitting end:

24. A channel measurement feedback device, comprising:

a first determining module, configured to determine a detection parameter of first type of CSI measurement reference information, where the first type of CSI measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal;

the detection module is used for detecting the first type CSI measurement reference information according to the detection parameters;

the obtaining module is used for carrying out CSI measurement based on the first type CSI measurement reference information under the condition that the first type CSI measurement reference information is detected, and obtaining a first type CSI measurement result;

the channel measurement feedback device is further configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back, where a demodulation reference pilot signal in the first type CSI measurement reference information is a demodulation reference pilot signal of a first type receiving end and/or a demodulation reference pilot signal of a second type receiving end, the second type receiving end is a receiving end other than the first type receiving end, the reference CSI information is CSI obtained based on the second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS; and the feedback module is used for determining to feed back the first type CSI measurement result to a sending end and feeding back the first type CSI measurement result to the sending end under the condition that the judgment result is that the feedback is needed.

25. The apparatus of claim 24, further comprising:

the judging module is used for comparing the first type CSI measuring result with reference CSI information and judging whether the first type CSI measuring result needs to be fed back or not;

and the second determining module is used for determining that the first-class CSI measuring result is fed back to the sending end under the condition that the judging result of the judging module is required to be fed back.

26. The apparatus of claim 25, wherein the determining module is further configured to determine whether the first type CSI measurement result needs to be fed back according to a channel quality offset parameter.

27. The apparatus of claim 24 or 26,

the feedback module is further configured to feed back a difference between the first type CSI measurement result and the reference CSI information to the sending end.

28. A channel measurement feedback apparatus, comprising:

a first determining module, configured to determine first-type channel state information, CSI, measurement reference information, where the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information;

the measurement module is used for measuring the first type CSI measurement reference information on N groups of time domain resources;

an obtaining module, configured to obtain CSI information corresponding to the N sets of time domain resources;

the selection module is used for selecting M groups of CSI information from N groups of CSI information, wherein the first type of CSI measurement result comprises the M groups of CSI information;

the channel measurement feedback device is further configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back, where a demodulation reference pilot signal in the first type CSI measurement reference information is a demodulation reference pilot signal of a first type receiving end and/or a demodulation reference pilot signal of a second type receiving end, the second type receiving end is a receiving end other than the first type receiving end, the reference CSI information is CSI obtained based on the second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS; and the selection module is further configured to feed back the M sets of CSI information to the sending end when the determination result indicates that feedback is required.

29. The apparatus of claim 28, further comprising:

and a second determining module, configured to determine, according to the configuration of the sending end, sending powers corresponding to the N sets of time domain resources, respectively, and/or determine, according to the configuration of the sending end, sending sequences and/or scrambling sequences corresponding to the N sets of time domain resources, respectively.

30. The apparatus of claim 28 or 29, further comprising: a determination module, wherein,

the judging module is used for judging whether measurement feedback is needed according to the indication of the sending end;

the selection module is further configured to select the M sets of CSI information from the N sets of CSI information and feed the M sets of CSI information back to the sending end when the determination result of the determination module indicates that measurement feedback is required.

31. A channel measurement feedback device, comprising:

a first sending module, configured to send N sets of first-type information to a receiving end, where the N sets of first-type information occupy N sets of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

a second sending module, configured to send a configuration signaling to the receiving end, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used by the receiving end to perform CSI measurement feedback;

the channel measurement feedback device is further configured to agree or configure reference CSI information with the receiving end, where the reference CSI information is CSI obtained based on second-type CSI measurement reference information, the reference CSI information is used to compare with a first-type CSI measurement result, the comparison result is used to determine whether the receiving end needs to feed back the first-type CSI measurement result, and the first-type CSI measurement result is a CSI measurement result obtained by performing CSI measurement based on N 'sets of the first-type information or N' sets of the time domain resources.

32. The apparatus of claim 31, further comprising:

a receiving module, configured to receive a CSI measurement result fed back by the receiving end after performing CSI measurement according to the configuration signaling;

and the determining module is used for determining the beam pilot frequency selected by the receiving end according to the received CSI measurement result.

33. A channel measurement feedback device, comprising:

a first receiving module, configured to receive N groups of first-type information, where the N groups of first-type information occupy N groups of time domain resources, and the first-type information is at least one of the following: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

a determining module, configured to determine, according to configuration of a sending end, that N' sets of the N sets of first-type information are used for performing CSI measurement and feedback;

the channel measurement feedback device is also used for carrying out CSI measurement based on the N' groups of the first type information to obtain a first type CSI measurement result; comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back or not; and determining to feed back the first type of CSI measurement result to the sending end and feed back the first type of CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed, wherein the reference CSI information is CSI obtained based on second type of CSI measurement reference information.

34. The apparatus of claim 33, further comprising:

a second receiving module, configured to receive a configuration signaling of the sending end, where the configuration signaling is used to indicate that N' sets of the N sets of the first type information are used for CSI measurement feedback.

35. The apparatus of claim 33 or 34, further comprising:

a first feedback module, configured to feed back the first type CSI measurement result to the sending end, where the first type CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the receiving end.

36. The apparatus of claim 33, further comprising:

the judging module is used for comparing the first type CSI measuring result with the reference CSI information and judging whether the first type CSI measuring result needs to be fed back or not;

and the second feedback module is used for feeding back the first type CSI measurement result to the sending end under the condition that the judgment result of the judgment module is required to be fed back.

37. A terminal, comprising: a processor and a transmission device, wherein,

the processor is configured to determine a detection parameter of first-type CSI measurement reference information, where the first-type CSI measurement reference information is at least one of: a control information demodulation reference pilot signal and a data information demodulation reference pilot signal; the CSI measurement device is also used for carrying out CSI measurement based on the first type of CSI measurement reference information under the condition that the first type of CSI measurement reference information is detected, and obtaining a first type of CSI measurement result; the CSI measurement device is further configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back, where a demodulation reference pilot signal in the first type CSI measurement reference information is a demodulation reference pilot signal of a first type receiving end and/or a demodulation reference pilot signal of a second type receiving end, the second type receiving end is a receiving end other than the first type receiving end, the reference CSI information is CSI obtained based on the second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS;

and the transmission device is connected with the processor and used for feeding back the first type CSI measurement result to the sending end through an interface under the condition that the judgment result of the processor is that feedback is needed.

38. The terminal of claim 37,

the processor is further configured to determine whether the first type CSI measurement result needs to be fed back according to the channel quality offset parameter.

39. The terminal according to any of the claims 37 to 38,

the processor is further configured to determine a difference between the first type CSI measurement result and reference CSI information;

the transmission device is further configured to feed back the determined difference value to the sending end through the interface.

40. A terminal, comprising: a processor and a transmission device, wherein,

the processor is configured to determine first-type channel state information, CSI, measurement reference information, where the measurement reference information is at least one of: the control information demodulates the reference pilot signal, the data information demodulates the reference pilot signal, control information, data information; the CSI measurement reference information acquisition module is further used for measuring the first type CSI measurement reference information on N groups of time domain resources, obtaining CSI information corresponding to the N groups of time domain resources, and selecting M groups of CSI information from the N groups of CSI information, wherein the first type CSI measurement result comprises the M groups of CSI information;

the processor is further configured to compare the first type CSI measurement result with reference CSI information, and determine whether the first type CSI measurement result needs to be fed back, where a demodulation reference pilot signal in the first type CSI measurement reference information is a demodulation reference pilot signal of a first type receiving end and/or a demodulation reference pilot signal of a second type receiving end, the second type receiving end is a receiving end other than the first type receiving end, the reference CSI information is CSI obtained based on the second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot, and the channel state information measurement pilot is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS; determining to feed back the first type CSI measurement result to a sending end under the condition that the judgment result is that the feedback is needed;

and the transmission device is used for feeding back the selected M groups of CSI information to the sending end through an interface.

41. The terminal of claim 40, wherein the processor is further configured to determine the transmit powers corresponding to the N sets of time domain resources respectively according to the configuration of the transmitter, and/or determine the transmit sequences and/or the scrambling sequences corresponding to the N sets of time domain resources respectively according to the configuration of the transmitter.

42. The terminal of claim 40 or 41,

the processor is further configured to determine whether to perform measurement feedback according to the indication of the sending end, and select the M sets of CSI information from the N sets of CSI information when the determination result is that the measurement feedback is performed.

43. A base station, comprising: a processor and a transmission device, wherein,

the processor is configured to determine N groups of first-type information, where the N groups of first-type information occupy N groups of time domain resources, and the first-type information is at least one of: data and/or control information, and reference demodulation pilot frequency corresponding to the data information and/or the control information;

the transmission device is used for transmitting the N groups of first-class information to a receiving end through a first interface; the configuration signaling is used for indicating N 'groups of first-type information in the N groups of first-type information or N' groups of time domain resources in the N groups of time domain resources to be used for the receiving end to perform CSI measurement feedback;

the processor is further configured to agree or configure reference CSI information with the receiving end, where the reference CSI information is CSI obtained based on second-type CSI measurement reference information, the reference CSI information is used to compare with a first-type CSI measurement result, the comparison result is used to determine whether the receiving end needs to feed back the first-type CSI measurement result, and the first-type CSI measurement result is a CSI measurement result obtained by performing CSI measurement based on the first-type information.

44. The base station of claim 43,

the transmission device is further configured to receive, through a second interface, the first CSI measurement result fed back by the receiving end after CSI measurement is performed according to the configuration signaling;

the processor is configured to determine a beam pilot selected by the receiving end according to the received first CSI measurement result.

45. A terminal, comprising: a processor and a transmission device, wherein,

the transmission device is configured to receive N sets of first-type information through a first interface, where the N sets of first-type information occupy N sets of time domain resources, and the first-type information is at least one of: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

the processor is used for determining that N' groups in the N groups of first-class information are used for measuring and feeding back Channel State Information (CSI) according to the configuration of a sending end;

the processor is further configured to perform CSI measurement based on the N' sets of the first type information to obtain a first type CSI measurement result; and comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back or not, wherein the reference CSI information is CSI obtained based on second type CSI measurement reference information.

46. The terminal of claim 45,

the transmission apparatus is further configured to receive, through the first interface, a configuration signaling of the sending end, where the configuration signaling is used to indicate that N' sets of the N sets of the first type information are used for CSI measurement feedback.

47. A terminal according to claim 45 or 46,

the transmission device is further configured to feed back, by the second interface, the first type CSI measurement result to the sending end, where the first type CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the receiving end.

48. A channel measurement feedback system, comprising: a base station and a terminal, characterized in that,

the base station comprises: a first processor and a first transmission device, wherein,

the first processor is configured to determine N sets of first-type information, where the N sets of first-type information occupy N sets of time-domain resources, and the first-type information is at least one of: the reference demodulation pilot frequency corresponding to the data information and/or the control information;

the first transmission device is used for sending the N groups of first-class information to the terminal through a first interface; the ue further sends a configuration signaling to the terminal through the first interface, where the configuration signaling is used to indicate that N 'sets of first type information in the N sets of first type information or N' sets of time domain resources in the N sets of time domain resources are used for the terminal to perform CSI measurement feedback;

the terminal includes: a second processor and a second transmission device, wherein,

the second transmission device is used for receiving the N groups of first-class information through a second interface;

the second processor is configured to determine, according to the configuration signaling of the base station, that N' sets of the N sets of first type information are used for CSI measurement and feedback;

the terminal is further used for carrying out CSI measurement based on the N' groups of the first type information to obtain a first type CSI measurement result; comparing the first type CSI measurement result with reference CSI information, and judging whether the first type CSI measurement result needs to be fed back, wherein the reference CSI information is CSI obtained based on second type CSI measurement reference information, the second type CSI measurement reference information is a channel state information measurement pilot frequency, and the channel state information measurement pilot frequency is at least one of the following: a wave beam reference signal RS, a wave beam improvement reference signal BRRS and a measurement channel state information reference signal CSI-RS; and determining to feed back the first type CSI measurement result to a sending end and feed back the first type CSI measurement result to the sending end under the condition that the judgment result is that feedback is needed, wherein the base station is the sending end.

49. The system of claim 48,

the second transmission device is further configured to feed back a CSI measurement result to the base station through a third interface, where the CSI measurement result carries a beam index and/or quality information corresponding to a beam pilot selected by the terminal;

the first transmission device is configured to receive the CSI measurement result sent by the terminal through a fourth interface;

the first processor is further configured to determine the beam pilot selected by the terminal according to the CSI measurement result.