CN108809366B - Method and device used in user and base station of wireless communication - Google Patents

Method and device used in user and base station of wireless communication Download PDF

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Publication number
CN108809366B
CN108809366B CN201710300334.4A CN201710300334A CN108809366B CN 108809366 B CN108809366 B CN 108809366B CN 201710300334 A CN201710300334 A CN 201710300334A CN 108809366 B CN108809366 B CN 108809366B
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antenna port
port group
type
target
beamforming vector
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CN108809366A (en
Inventor
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202010674131.3A priority patent/CN111884687A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station

Abstract

The invention discloses a method and a device used in a user and a base station of wireless communication. The user equipment monitors a first type of wireless signals in a first time-frequency resource; and monitoring the target wireless signal in the second time-frequency resource. Wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the R is used for multi-antenna related monitoring for the target wireless signal, and the R is a non-negative integer. The method enhances the accuracy of the control channel beam forming and improves the transmission quality of the control channel.

Description

Method and device used in user and base station of wireless communication
Technical Field
The present application relates to a method and an apparatus for transmitting a wireless signal in a wireless communication system, and more particularly, to a method and an apparatus for transmitting a wireless signal in a wireless communication system supporting multi-antenna transmission.
Background
Large scale (Massive) MIMO has become a research hotspot for next generation mobile communications. In large-scale MIMO, multiple antennas are shaped by beamforming to form beams pointing in a specific direction to improve communication quality. Since the beams formed by multi-antenna beamforming are generally narrow, in order to resist the occlusion in the transmission environment and ensure the transmission robustness, according to the conclusion of 3GPP (3rd generation Partner Project) RAN1 NR Ad-Hoc conference, a user is supported to monitor an NR-PDCCH (New wireless Physical downlink control CHannel) on multiple beam pair connections (beam pair links). Considering this conclusion, the design of NR-PDCCH may be different from PDCCH design in the conventional 3GPP system, which is a problem to be solved.
Disclosure of Invention
The inventors have found through research that when NR-PDCCH can be transmitted with multiple beam pairs (beam pairs), the selection of a suitable beam pair will be an issue.
The present application discloses a solution to the above-mentioned problems. It should be noted that although the initial motivation of the present application is for NR-PDCCH, the present application is applicable to other channels as well. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
The application discloses a method in a user equipment used for wireless communication, characterized by comprising:
-step a. monitoring a first type of radio signal in a first time-frequency resource;
-step b. monitoring the target radio signal in the second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the R is used for multi-antenna related monitoring for the target wireless signal, and the R is a non-negative integer.
As an embodiment, the above method has a benefit of allowing the ue to determine the multi-antenna correlation monitoring for the target wireless signal according to the multi-antenna correlation receiving condition of the R wireless signals of the first type that are correctly decoded, thereby improving the receiving reliability of the target wireless signal.
As an embodiment, the first type of wireless signal includes DCI (Downlink control information).
As one embodiment, the target wireless signal includes DCI.
For one embodiment, the first type of wireless signal includes physical layer signaling.
For one embodiment, the target wireless signal includes physical layer signaling.
As an embodiment, the first type of radio signal is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As an embodiment, the downlink Physical layer control CHannel is a PDCCH (Physical downlink control CHannel).
As an embodiment, the downlink physical layer control channel is a short PDCCH (short PDCCH).
As an embodiment, the downlink physical layer control channel is an NR-PDCCH (New Radio PDCCH).
As an embodiment, the downlink physical layer control channel is an NB-PDCCH (Narrow Band PDCCH).
As an embodiment, the target wireless signal is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used to carry physical layer signaling).
As an embodiment, the downlink physical layer control channel is a PDCCH.
As an embodiment, the downlink physical layer control channel is sPDCCH.
As an embodiment, the downlink physical layer control channel is an NR-PDCCH.
In one embodiment, the downlink physical layer control channel is an NB-PDCCH.
As an embodiment, the first time-frequency resource includes a positive integer number of discontinuous time units in a time domain.
As an example, the time unit is the duration of one wideband symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an OFDM (Orthogonal frequency division Multiplexing) symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is a DFT-S-OFDM (discrete fourier Transform Spread OFDM) symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an FBMC (Filter Bank MultiCarrier) symbol.
As an embodiment, the first time-frequency resource includes a positive integer number of consecutive frequency units in a frequency domain.
As an embodiment, the first time-frequency resource includes a positive integer number of discontinuous frequency units in a frequency domain.
As an embodiment, the frequency unit is a bandwidth occupied by one subcarrier.
As an embodiment, the second time-frequency resource comprises a positive integer number of consecutive time units in the time domain.
As an embodiment, the second time-frequency resource comprises a positive integer number of consecutive frequency units in the frequency domain.
As an embodiment, the second time-frequency resource comprises a positive integer number of discontinuous frequency units in the frequency domain.
In one embodiment, the first time-frequency resource is located before the second time-frequency resource in the time domain.
In one embodiment, the second time-frequency resource is within the first time-frequency resource.
As an embodiment, the monitoring refers to receiving based on blind detection, that is, receiving a signal in a given time-frequency resource and performing a decoding operation, and if it is determined that the decoding is correct according to the check bits, determining that the receiving is successful, otherwise, determining that the receiving is failed. The given time-frequency resource is the first time-frequency resource or the second time-frequency resource.
As an example, said R is equal to 0.
As one embodiment, R is greater than 0.
As an embodiment, the correct coding means: and the user equipment receives the signal in the first time-frequency resource and performs decoding operation, and determines that the decoding is correct according to the check bit.
As an embodiment, the R is used for multi-antenna related monitoring for the target wireless signal by: is used by the R to determine a beamforming vector for monitoring the target wireless signal.
As an embodiment, beamforming vectors used by the user equipment for receiving the R first type wireless signals are used for monitoring the target wireless signal, where R is greater than a certain threshold. The particular threshold is a non-negative integer.
As an embodiment, the beamforming vector used by the user equipment to monitor the first type of radio signal is not used to monitor the target radio signal, the R being equal to a certain threshold. The particular threshold is a non-negative integer.
As an embodiment, if the R is greater than a certain threshold, the beamforming vectors used by the user equipment to receive the R first type wireless signals are used to monitor the target wireless signal; otherwise, beamforming vectors other than the beamforming vectors used by the user equipment for monitoring the R first type wireless signals are used for monitoring the target wireless signal. The particular threshold is a non-negative integer.
As an embodiment, the beamforming vectors used by the user equipment for monitoring the R first type wireless signals are configurable.
As one embodiment, the specific threshold is 0.
As one embodiment, the specific threshold is greater than 0.
As an embodiment, the user equipment receives the R first type wireless signals with the same beamforming vector.
As an embodiment, the R is used for multi-antenna related monitoring for the target wireless signal by: the R is used to determine a transmit antenna port set for the target wireless signal.
As an embodiment, the user equipment assumes that the transmit antenna port groups of the R first-type wireless signals and the transmit antenna port group of the target wireless signal are the same, and R is greater than 0.
As an embodiment, the user equipment assumes that the R transmit antenna port groups of the first type wireless signals and the transmit antenna port group of the target wireless signal correspond to the same beamforming vector, and R is greater than 0.
As an embodiment, the user equipment assumes that the transmit antenna port groups of the R first type wireless signals and the transmit antenna port group of the target wireless signal are different, and R is equal to 0.
As an embodiment, the user equipment assumes that the R transmit antenna port groups of the first type wireless signals and the transmit antenna port group of the target wireless signal correspond to different beamforming vectors, and R is equal to 0.
As an embodiment, the user equipment assumes that the R first type wireless signals are transmitted by the same antenna port group.
As an embodiment, if R is greater than a specific threshold, the user equipment assumes that the transmit antenna port group of the R first type wireless signals and the transmit antenna port group of the target wireless signal are the same; otherwise the transmit antenna port groups of the R first type wireless signals and the transmit antenna port group of the target wireless signal cannot be assumed to be the same. The specific threshold is greater than or equal to 0.
As an embodiment, if R is greater than a specific threshold, the ue assumes that the R transmit antenna port groups of the first type of radio signals and the transmit antenna port group of the target radio signal correspond to the same beamforming vector; otherwise, the beamforming vectors corresponding to the R transmit antenna port groups of the first type of wireless signals and the beamforming vector corresponding to the transmit antenna port group of the target wireless signal cannot be considered to be the same. The specific threshold is greater than or equal to 0.
As one embodiment, the specific threshold is 0.
For one embodiment, the antenna port set includes a positive integer number of antenna ports.
As an embodiment, the time domain resources occupied by the R first type wireless signals are located in W time units before the time domain resources occupied by the target wireless signal, and the W time units are adjacent to the time domain resources occupied by the target wireless signal in the time domain. And W is a positive integer.
As a sub-embodiment of the above embodiment, the W is configured by higher layer signaling.
As an embodiment, the above method has a benefit that only the R first type wireless signals correctly decoded in the W time units are used for determining the multi-antenna correlated monitoring for the target wireless signal, and the correlation between the channel experienced by the R first type wireless signals and the channel experienced by the target wireless signal is ensured, thereby ensuring that the multi-antenna correlated monitoring for the target wireless signal determined by the above method matches the channel experienced by the target wireless signal.
Specifically, according to an aspect of the present application, the step a further includes:
-step A0. transmitting R second type radio signals;
wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
As an embodiment, the above method has a benefit that the sender of the target wireless signal can determine that the R wireless signals of the first type are correctly decoded by the user equipment according to the R wireless signals of the second type.
As an embodiment, the second type of wireless signal includes HARQ-ACK (Hybrid Automatic Repeat reQuest Acknowledgement) for a downlink wireless signal scheduled by the corresponding first type of wireless signal.
For one embodiment, the first type of wireless signal includes dynamic signaling for Downlink Grant (Downlink Grant).
As an embodiment, the first type of radio signal includes scheduling information for the corresponding second type of radio signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS (Modulation and coding Scheme), HARQ process number, RV (Redundancy Version), NDI (New Data Indicator) }.
As an embodiment, the first type of wireless signal includes dynamic signaling for Uplink Grant (Uplink Grant).
For one embodiment, the target wireless signal includes dynamic signaling for Downlink Grant (Downlink Grant).
For one embodiment, the target wireless signal includes dynamic signaling for an Uplink Grant (Uplink Grant).
As an embodiment, the second type of wireless signal includes at least one of { uplink control information, uplink data }.
As an embodiment, the second type of radio signal is transmitted on an uplink physical layer control channel (i.e. an uplink channel that can only be used to carry physical layer signaling).
As an embodiment, the Uplink Physical layer control channel is a PUCCH (Physical Uplink control channel).
As an embodiment, the uplink physical layer control channel is sPUCCH (short PUCCH ).
As an embodiment, the uplink physical layer control channel is an NR-PUCCH (New Radio PUCCH).
In one embodiment, the uplink physical layer control channel is NB-PUCCH (Narrow Band PUCCH).
As an example, the second type of wireless signal is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).
As an embodiment, the Uplink Physical layer data channel is a PUSCH (Physical Uplink shared channel).
As an embodiment, the uplink physical layer data channel is a short PUSCH (short PUSCH).
As an embodiment, the uplink physical layer data channel is NR-PUSCH (New Radio PUSCH).
As an embodiment, the uplink physical layer data channel is NB-PUSCH (Narrow Band PUSCH).
In particular, according to an aspect of the present application, it is characterized in that a target beamforming vector is used for monitoring for the target wireless signal at the user equipment side, the target beamforming vector is one of Q candidate beamforming vectors, the R is used for determining the target beamforming vector among the Q candidate beamforming vectors, the Q is a positive integer greater than 1.
As an embodiment, the foregoing method has an advantage of allowing the ue to determine the target beamforming vector according to the multi-antenna-related reception situation of the R first-type radio signals that are correctly decoded, so as to ensure that the target beamforming vector has a greater probability of matching with the current radio channel, and improve the probability of successful reception of the target radio signal.
As an example, Q is equal to 2.
As one embodiment, Q is greater than 2.
As an embodiment, a first beamforming vector is used for reception of the R first type wireless signals at the user equipment side, the first beamforming vector being used for determining the target beamforming vector.
As one embodiment, the first beamforming vector is one of the Q candidate beamforming vectors, the target beamforming vector is equal to the first beamforming vector, and the R is greater than 0.
As an embodiment, the first beamforming vector is used for monitoring for at least one radio signal of the first type at the user equipment side.
For one embodiment, the target beamforming vector is not equal to the first beamforming vector, and R is equal to 0.
As one embodiment, the first beamforming vector is one of the Q candidate beamforming vectors, the target beamforming vector is the one of the Q candidate beamforming vectors that is not equal to the first beamforming vector, the R is equal to 0, and the Q is equal to 2.
As an embodiment, the fact that a given beamforming vector is used for monitoring for a given radio signal at the user equipment side means that: the user equipment is configured with N physical antennas, the given beamforming vector includes N given elements, and the user equipment receives the given wireless signal with the N physical antennas, weights the signals received on the N physical antennas with the N given elements, and then combines the weighted signals. And the user equipment executes decoding operation on the combined signal, if the decoding is determined to be correct according to the check bit, the user equipment judges that the given wireless signal is successfully received, and otherwise, the user equipment judges that the given wireless signal is failed to be received. And N is a positive integer greater than 1.
As one embodiment, any two of the Q candidate beamforming vectors are unequal.
Specifically, according to one aspect of the present application, the target wireless signal is transmitted by a target antenna port group, the target antenna port group is one of Q1 candidate antenna port groups, the R is used for determining the target antenna port group among the Q1 candidate antenna port groups, the Q1 is a positive integer greater than 1, and the antenna port groups include a positive integer number of antenna ports.
As an embodiment, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector, where the beamforming vector is formed by a Kronecker product of an analog beamforming vector and a digital beamforming vector.
For one embodiment, different antenna ports within one antenna port group correspond to the same analog beamforming vector.
As an embodiment, different antenna port groups correspond to different analog beamforming vectors.
As an embodiment, different antenna ports within one antenna port group correspond to different digital beamforming vectors.
As an embodiment, the antenna port group includes 1 antenna port, and the beamforming vector corresponding to the antenna port group is equal to the analog beamforming vector corresponding to the antenna port group.
For one embodiment, the antenna port group includes a plurality of the antenna ports.
As an embodiment, the user equipment assumes that any one antenna port in a first given antenna port group and any one antenna port in a first antenna port group are QCL (Quasi Co-Located), the first given antenna port group is used for transmitting any one of the R first type wireless signals, the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports, and the first antenna port group is used for determining the target antenna port group.
As an embodiment, two of the antenna ports being of the QCL means: the large-scale characteristics of the channel experienced by the radio signal transmitted on one of the antenna ports can be deduced from the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on the other antenna port. The large-scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation }.
As an embodiment, two of the antenna ports being of the QCL means: the two antenna ports correspond to the same analog beamforming vector.
As an embodiment, two of the antenna ports being of the QCL means: the user equipment may receive the wireless signals transmitted on the two antenna ports with the same beamforming vector.
As an embodiment, the first antenna port group is one of the Q1 candidate antenna port groups, the target antenna port group is the first antenna port group, and R is greater than 0.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are QCL, and R is greater than 0.
As an embodiment, the user equipment assumes that the first antenna port group and a first reference antenna port group are QCL, the first reference antenna port group being used for transmitting at least one of the first type of wireless signals.
As an embodiment, the user equipment assumes that the target antenna port group and the first antenna port group are not the same, and R is equal to 0.
As an embodiment, the two antenna port groups are different, that is: the small scale characteristics of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used to infer the small scale characteristics of the wireless channel experienced by the signal transmitted by the second antenna port. The first antenna port and the second antenna port are respectively any one of the antenna ports in the two antenna port groups, and the small-scale characteristic includes a channel impulse response.
As an embodiment, the two antenna port groups are different, that is: joint channel estimation cannot be performed using the reference signal transmitted by the first antenna port and the reference signal transmitted by the second antenna port. The first antenna port and the second antenna port are each any one of the antenna ports in the two antenna port groups.
As an embodiment, the two antenna port groups are different, that is: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port are different. The first antenna port and the second antenna port are each any one of the antenna ports in the two antenna port groups.
As an embodiment, the two antenna port groups are different, that is: the analog beamforming vectors corresponding to the two antenna port groups are different.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are not QCL, and R is equal to 0.
As an embodiment, the two antenna ports not being of the QCL means: the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on one of the antenna ports cannot be inferred from the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on the other antenna port. The large-scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation }.
As an embodiment, the two antenna ports not being of the QCL means: the two antenna ports correspond to different analog beamforming vectors.
As an embodiment, the two antenna ports not being of the QCL means: the user equipment may not receive the wireless signals transmitted on the two antenna ports with the same beamforming vector.
As an embodiment, the first antenna port group is one of the Q1 candidate antenna port groups, the user equipment assumes that the target antenna port group is one of the Q1 candidate antenna port groups not equal to the first antenna port group, the R is equal to 0, and the Q1 is equal to 2.
As one example, the Q1 is equal to the Q.
As an embodiment, the Q candidate beamforming vectors and the Q1 candidate antenna port groups are in a one-to-one correspondence, the Q1 being equal to the Q.
For one embodiment, the Q1 is not equal to the Q.
As an embodiment, any two of the Q1 candidate antenna port groups are not identical.
As an example, Q1 is equal to 2.
As one example, the Q1 is greater than 2.
In particular, according to one aspect of the present application, a first beamforming vector is used for reception of the R radio signals of the first type at the user equipment side.
As one embodiment, the first beamforming vector is one of the Q candidate beamforming vectors.
As one embodiment, the first beamforming vector is used to determine the target beamforming vector.
As an embodiment, the foregoing method has a benefit that, since the user equipment has successfully received and correctly decoded the R first type radio signals by using the first beamforming vector, the target beamforming vector determined according to the first beamforming vector has a high probability of successfully receiving the target radio signal, thereby improving the transmission reliability of the target radio signal.
As one embodiment, the target beamforming vector is equal to the first beamforming vector, and the R is greater than 0.
As an embodiment, the first beamforming vector is used for monitoring for at least one radio signal of the first type at the user equipment side.
For one embodiment, the target beamforming vector is not equal to the first beamforming vector, and R is equal to 0.
As one embodiment, the first beamforming vector is one of the Q candidate beamforming vectors, the target beamforming vector is the one of the Q candidate beamforming vectors that is not equal to the first beamforming vector, the R is equal to 0, and the Q is equal to 2.
As an embodiment, the use of a given beamforming vector for reception of a given radio signal at the user equipment side means: the user equipment is configured with N physical antennas, the given beamforming vector includes N given elements, and the user equipment receives the given wireless signal with the N physical antennas, weights the signals received on the N physical antennas with the N given elements, and then combines the weighted signals.
Specifically, according to an aspect of the present application, the user equipment assumes that any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group is used for transmitting any one of the R first type wireless signals, and the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports.
As one embodiment, the Quasi-Co-location refers to QCL (Quasi Co-Located).
As an embodiment, the user equipment assumes that the R wireless signals of the first type are all transmitted by the first antenna port group.
For one embodiment, the first antenna port group is used to determine the target antenna port group.
For one embodiment, the first antenna port group is one of the Q1 candidate antenna port groups.
As an embodiment, the user equipment assumes that the target antenna port group is the first antenna port group, and the R is greater than 0.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are QCL, and the R is greater than 0.
As an embodiment, the user equipment assumes that the first antenna port group and a first reference antenna port group are QCL, the first reference antenna port group being used for transmitting at least one of the first type of wireless signals.
As an embodiment, the user equipment assumes that the target antenna port group and the first antenna port group are not the same, and R is equal to 0.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are not QCL, and R is equal to 0.
As an embodiment, the first antenna port group is one of the Q1 candidate antenna port groups, the user equipment assumes that the target antenna port group is one of the Q1 candidate antenna port groups not equal to the first antenna port group, the R is equal to 0, and the Q1 is equal to 2.
Specifically, according to an aspect of the present application, a second beamforming vector is used for reception of R1 radio signals of the first type at the user equipment side, a third beamforming vector is used for reception of R2 radio signals of the first type at the user equipment side, the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, respectively, { the R1, the R2} are used for determining the target beamforming vector, and the R1 and the R2 are non-negative integers not greater than the R, respectively.
As an embodiment, the foregoing method is advantageous in that the ue may determine the target beamforming vector by determining the degree of matching between the second beamforming vector and the channel and the degree of matching between the third beamforming vector and the channel according to the R1 and the R2, so as to improve the probability of matching between the target beamforming vector and the current channel and improve the reliability of receiving the target wireless signal.
As an embodiment, the time domain resources occupied by the R1 first-type wireless signals are located in W1 time units before the time domain resources occupied by the target wireless signals, the time domain resources occupied by the R2 first-type wireless signals are located in W2 time units before the time domain resources occupied by the target wireless signals, and the W1 time units and the W2 time units are respectively adjacent to the time domain resources occupied by the target wireless signals in the time domain. The W1 and the W2 are each positive integers.
As a sub-embodiment of the above embodiment, the W1 is smaller than the W2.
As a sub-embodiment of the above embodiment, the W1 and the W2 are configured by higher layer signaling respectively.
As one embodiment, the second beamforming vector and the third beamforming vector belong to the Q candidate beamforming vectors, respectively.
As one embodiment, the Q candidate beamforming vectors include the second beamforming vector and the third beamforming vector, the Q being equal to 2.
As one embodiment, the second beamforming vector is not equal to the third beamforming vector.
As an embodiment, the second beamforming vector is used for monitoring, at the user equipment side, for the first type of radio signals other than at least one of the R2 first type of radio signals.
As an embodiment, the third beamforming vector is used for monitoring, at the user equipment side, for at least one of the R1 radio signals of the first type other than the radio signals of the first type.
For one embodiment, the target beamforming vector is equal to the second beamforming vector, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located within a first pool of time resources.
For one embodiment, the target beamforming vector is equal to the third beamforming vector, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located in a second pool of time resources.
As one embodiment, the target beamforming vector is equal to the third beamforming vector, the R1 is equal to zero, and the R2 is greater than zero.
For one embodiment, the target beamforming vector is equal to the second beamforming vector, the R1 is greater than zero, and the R2 is equal to zero.
As an embodiment, the target beamforming vector is equal to the second beamforming vector, the R1 is greater than zero, the R2 is greater than zero, the second time-frequency resource is located within the first pool of time resources.
As an embodiment, the target beamforming vector is equal to the third beamforming vector, the R1 is greater than zero, the R2 is greater than zero, the second time-frequency resource is located within the second pool of time resources.
As an embodiment, the target beamforming vector is equal to the second beamforming vector, the R1 is equal to zero, the R2 is equal to zero, the second time-frequency resource is located within the first pool of time resources.
As an embodiment, the target beamforming vector is equal to the third beamforming vector, the R1 is equal to zero, the R2 is equal to zero, the second time-frequency resource is located within the second pool of time resources.
As an embodiment, the first time resource pool and the second time resource pool are configured by a higher layer signaling respectively.
As an embodiment, the first time resource pool appears multiple times in the time domain, the second time resource pool appears multiple times in the time domain, and an interval between any two adjacent occurrences of the first time resource pool in the time domain is smaller than an interval between any two adjacent occurrences of the second time resource pool in the time domain.
As an embodiment, the first time resource pool and the second time resource pool are mutually orthogonal (non-overlapping) in the time domain.
As an embodiment, the sum of the R1 and the R2 is equal to the R.
As one embodiment, the sum of the R1 and the R2 is less than the R.
As one embodiment, the sum of the R1 and the R2 is greater than the R.
In particular, according to one aspect of the present application, the user equipment assumes that any antenna port in a second given antenna port group and any antenna port in a second antenna port group are quasi co-located, the user equipment assumes that any antenna port in a third given antenna port group and any antenna port in a third antenna port group are quasi co-located, the second given antenna port group is used for transmitting any one of the R1 radio signals of the first type, the third given antenna port group is used for transmitting any one of the R2 radio signals of the first type, { the R1, the R2} is used for determining the target antenna port group, { the second given antenna port group, the second antenna port group, the third given antenna port group, the third antenna port group comprises a positive integer number of antenna ports respectively.
For one embodiment, the user equipment assumes that the R1 wireless signals of the first type are all transmitted by the second antenna port group.
For one embodiment, the user equipment assumes that the R2 wireless signals of the first type are all transmitted by the third antenna port group.
As an embodiment, the second antenna port group and the third antenna port group belong to the Q1 candidate antenna port groups, respectively.
For one embodiment, the Q1 candidate antenna port groups include the second antenna port group and the third antenna port group, and Q1 is equal to 2.
As an embodiment, the user equipment assumes that the second antenna port group and the third antenna port group are not the same.
As an embodiment, the user equipment assumes that the second antenna port group and a second reference antenna port group are QCL, the second reference antenna port group being used for transmitting at least one of the first type wireless signals other than the R2 first type wireless signals.
As an embodiment, the user equipment assumes that the third antenna port group and a third reference antenna port group are QCL, the third reference antenna port group being used for transmitting at least one of the first type wireless signals other than the R1 first type wireless signals.
As an embodiment, the user equipment assumes that the target antenna port group is the second antenna port group, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the user equipment assumes that the target antenna port group is the third antenna port group, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located in a second time resource pool.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located within a second time resource pool.
For one embodiment, the user equipment assumes that the target antenna port group is the third antenna port group, the R1 is equal to zero, and the R2 is greater than zero.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is equal to zero, and the R2 is greater than zero.
For one embodiment, the user equipment assumes that the target antenna port group is the second antenna port group, the R1 is greater than zero, and the R2 is equal to zero.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is greater than zero, and the R2 is equal to zero.
As an embodiment, the user equipment assumes that the target antenna port group is the second antenna port group, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the user equipment assumes that the target antenna port group is the third antenna port group, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located in the second time resource pool.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located within the second time resource pool.
As an embodiment, the user equipment assumes that the target antenna port group is the second antenna port group, the R1 is equal to zero, the R2 is equal to zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is equal to zero, the R2 is equal to zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the user equipment assumes that the target antenna port group is the third antenna port group, the R1 is equal to zero, the R2 is equal to zero, and the second time-frequency resource is located within the second time resource pool.
As an embodiment, the user equipment assumes that any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is equal to zero, the R2 is equal to zero, and the second time-frequency resource is located within the second time resource pool.
Specifically, according to an aspect of the present application, the method further includes:
-step c. receiving downlink information;
wherein the downlink information is used to determine at least one of { the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, the Q1 candidate antenna port groups }
As an embodiment, the downlink information is carried by higher layer signaling.
As an embodiment, the downlink information is carried by RRC (Radio Resource Control) signaling.
As an embodiment, the downlink information is used to determine the W.
As one embodiment, the downstream information is used to determine the W1, the W2.
As an embodiment, the downlink information is used to determine { the first time resource pool, the second time resource pool }.
The application discloses a method in a base station used for wireless communication, characterized by comprising:
-a. transmitting a first type of radio signal in a first time-frequency resource;
-step b. transmitting the target radio signal in a second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the R being used for multi-antenna related transmission for the target wireless signal, the R being a non-negative integer.
As an embodiment, the above method has a benefit of allowing the base station to decide the multi-antenna related transmission for the target wireless signal according to the multi-antenna related transmission of the R wireless signals of the first type that are correctly decoded, thereby improving the transmission reliability of the target wireless signal.
As an embodiment, the first type of wireless signal includes DCI (Downlink control information).
As one embodiment, the target wireless signal includes DCI.
In one embodiment, the first time-frequency resource is located before the second time-frequency resource in the time domain.
In one embodiment, the second time-frequency resource is within the first time-frequency resource.
As an example, said R is equal to 0.
As one embodiment, R is greater than 0.
As an embodiment, the R is used for multi-antenna related transmission for the target wireless signal by: the R is used to determine a transmit antenna port set for the target wireless signal.
As an embodiment, the R is used for multi-antenna related transmission for the target wireless signal by: the R is used to determine a beamforming vector for monitoring the target wireless signal.
Specifically, according to an aspect of the present application, the step a further includes:
-step A0. receiving R second type radio signals;
wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
As an embodiment, the second type of wireless signal includes HARQ-ACK (Hybrid Automatic Repeat request Acknowledgement) for a downlink wireless signal scheduled by the corresponding first type of wireless signal.
As an embodiment, the first type of radio signal includes scheduling information for the corresponding second type of radio signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS (Modulation and coding Scheme), HARQ process number, RV (Redundancy Version), NDI (New Data Indicator) }.
In particular, according to an aspect of the present application, a target beamforming vector is used for monitoring for the target wireless signal, the target beamforming vector being one of Q candidate beamforming vectors, the R being used for determining the target beamforming vector among the Q candidate beamforming vectors, the Q being a positive integer greater than 1.
As an example, Q is equal to 2.
As one embodiment, Q is greater than 2.
Specifically, according to one aspect of the present application, the target wireless signal is transmitted by a target antenna port group, the target antenna port group is one of Q1 candidate antenna port groups, the R is used for determining the target antenna port group among the Q1 candidate antenna port groups, the Q1 is a positive integer greater than 1, and the antenna port groups include a positive integer number of antenna ports.
As an embodiment, the above method has an advantage of allowing the base station to determine the target antenna port group according to the multi-antenna-related reception condition of the R wireless signals of the first type that are correctly decoded, thereby ensuring that the target antenna port group has a greater possibility of matching with the current wireless channel, and improving the transmission quality of the target wireless signal.
In particular, according to one aspect of the present application, a first beamforming vector is used for reception of said R radio signals of said first type.
As one embodiment, the first beamforming vector is one of the Q candidate beamforming vectors.
As one embodiment, the first beamforming vector is used to determine the target beamforming vector.
Specifically, according to an aspect of the present application, any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group is used for transmitting any one of the R first type wireless signals, and the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports.
As one embodiment, the Quasi-Co-location refers to QCL (Quasi Co-Located).
As an embodiment, the R first type wireless signals are all transmitted by the first antenna port group.
For one embodiment, the first antenna port group is used to determine the target antenna port group.
As an embodiment, the above method has a benefit that, since the R first-type wireless signals have been correctly decoded, the target antenna port group determined according to the first antenna port group has a high probability of being directed to the target receiver of the target wireless signal, thereby improving the transmission reliability of the target wireless signal.
As an embodiment, the target antenna port group is the first antenna port group, and R is greater than 0.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are QCL, and R is greater than 0.
As one embodiment, the first antenna port group and a first reference antenna port group are QCL, the first reference antenna port group being used to transmit at least one of the first type of wireless signals.
For one embodiment, the target antenna port group and the first antenna port group are different, and R is equal to 0.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are not QCL, and R is equal to 0.
For one embodiment, the first antenna port group is one of the Q1 candidate antenna port groups, the target antenna port group is one of the Q1 candidate antenna port groups not equal to the first antenna port group, the R is equal to 0, and the Q1 is equal to 2.
Specifically, according to an aspect of the present application, a second beamforming vector is used for reception of R1 first-type wireless signals, a third beamforming vector is used for reception of R2 first-type wireless signals, the R1 first-type wireless signals and the R2 first-type wireless signals are subsets of the R first-type wireless signals, respectively, { the R1, the R2} are used for determining the target beamforming vector, and the R1 and the R2 are non-negative integers not greater than R, respectively.
As one embodiment, the Q candidate beamforming vectors include the second beamforming vector and the third beamforming vector, the Q being equal to 2.
As one embodiment, the second beamforming vector is not equal to the third beamforming vector.
In particular, according to one aspect of the present application, it is characterized in that any one antenna port of the second given antenna port group and any one antenna port of the second antenna port group are quasi co-located, any one antenna port of the third given antenna port group and any one antenna port of the third antenna port group are quasi co-located, the second given antenna port group is used to transmit any of the R1 wireless signals of the first type, the third given antenna port group is used to transmit any of the R2 wireless signals of the first type, { the R1, the R2 is used to determine the target antenna port set, { the second given antenna port set, the second antenna port group, the third given antenna port group, the third antenna port group } each include a positive integer number of antenna ports.
As an embodiment, the above method is advantageous in that the base station may determine the directivity of the target receiver of the target wireless signal by the second antenna port group and the third antenna port group according to the R1 and the R2, respectively, so as to determine the target antenna port group, thereby ensuring that the target antenna port group is likely to point to the target receiver of the target wireless signal, and improving the transmission reliability of the target wireless signal.
For one embodiment, the Q1 candidate antenna port groups include the second antenna port group and the third antenna port, and Q1 is equal to 2.
For one embodiment, the second antenna port group and the third antenna port group are different.
For one embodiment, the R1 first-type wireless signals are all transmitted by the second antenna port group.
For one embodiment, the R2 first-type wireless signals are all transmitted by the third antenna port group.
For one embodiment, the second antenna port group and a second reference antenna port group are QCL, the second reference antenna port group being used to transmit at least one of the first type of wireless signals other than the R2 first type of wireless signals.
For one embodiment, the third antenna port group and a third reference antenna port group are QCL, the third reference antenna port group being used to transmit at least one of the first type of wireless signals other than the R1 first type of wireless signals.
As an embodiment, the target antenna port group is the second antenna port group, the R1 is equal to zero, the R2 is greater than zero, the second time-frequency resource is located in the first time resource pool.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located within the first time resource pool.
For an embodiment, the target antenna port group is the third antenna port group, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located in a second time resource pool.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is equal to zero, the R2 is greater than zero, and the second time-frequency resource is located within a second pool of time resources.
For one embodiment, the target antenna port group is the third antenna port group, the R1 is equal to zero, and the R2 is greater than zero.
As one embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is equal to zero, and the R2 is greater than zero.
For one embodiment, the target antenna port group is the second antenna port group, the R1 is greater than zero, and the R2 is equal to zero.
As one embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is greater than zero, and the R2 is equal to zero.
As an embodiment, the target antenna port group is the second antenna port group, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located in the first time resource pool.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the target antenna port group is the third antenna port group, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located in the second time resource pool.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is greater than zero, the R2 is greater than zero, and the second time-frequency resource is located within the second time resource pool.
As an embodiment, the target antenna port group is the second antenna port group, the R1 is equal to zero, the R2 is equal to zero, the second time-frequency resource is located in the first time resource pool.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL, the R1 is equal to zero, the R2 is equal to zero, and the second time-frequency resource is located within the first time resource pool.
As an embodiment, the target antenna port group is the third antenna port group, the R1 is equal to zero, the R2 is equal to zero, the second time-frequency resource is located in the second time resource pool.
As an embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL, the R1 is equal to zero, the R2 is equal to zero, and the second time-frequency resource is located within the second time resource pool.
Specifically, according to an aspect of the present application, the method further includes:
-step c. sending downlink information;
wherein the downlink information is used to determine at least one of { the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, the Q1 candidate antenna port groups }.
The application discloses a user equipment used for wireless communication, which is characterized by comprising:
the first processing module monitors a first type of wireless signals in a first time-frequency resource;
the second processing module is used for monitoring a target wireless signal in a second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the R is used for multi-antenna related monitoring for the target wireless signal, and the R is a non-negative integer.
As an embodiment, the user equipment used for wireless communication is characterized in that the first processing module is further configured to transmit R second-type wireless signals. Wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
As an embodiment, the user equipment used for wireless communication is characterized in that a target beamforming vector is used for monitoring for the target wireless signal at the user equipment side, the target beamforming vector is one of Q candidate beamforming vectors, the R is used for determining the target beamforming vector in the Q candidate beamforming vectors, the Q is a positive integer greater than 1.
As an embodiment, the above user equipment for wireless communication is characterized in that the target wireless signal is transmitted by a target antenna port group, the target antenna port group is one of Q1 candidate antenna port groups, the R is used for determining the target antenna port group among the Q1 candidate antenna port groups, the Q1 is a positive integer greater than 1, and the antenna port groups include a positive integer number of antenna ports.
As an embodiment, the above user equipment for wireless communication is characterized in that a first beamforming vector is used for reception of the R first type radio signals at the user equipment side.
As an embodiment, the user equipment used for wireless communication is characterized in that the user equipment assumes that any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group is used for transmitting any one of the R first type wireless signals, and the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports.
As an embodiment, the above user equipment for wireless communication is characterized in that a second beamforming vector is used for reception of R1 first-type radio signals at the user equipment side, a third beamforming vector is used for reception of R2 first-type radio signals at the user equipment side, the R1 first-type radio signals and the R2 first-type radio signals are subsets of the R first-type radio signals, respectively, { the R1, the R2} are used for determining the target beamforming vector, and the R1 and the R2 are non-negative integers not greater than R, respectively.
As an embodiment, the user equipment used for wireless communication as described above is characterized in that the user equipment assumes that any antenna port in a second given antenna port group and any antenna port in a second antenna port group are quasi co-located, the user equipment assumes that any antenna port in a third given antenna port group and any antenna port in a third antenna port group are quasi co-located, the second given antenna port group is used for transmitting any of the R1 radio signals of the first type, the third given antenna port group is used for transmitting any of the R2 radio signals of the first type, { the R1, the R2} is used for determining the target antenna port group, { the second given antenna port group, the second antenna port group, the third given antenna port group, the third antenna port group comprises a positive integer number of antenna ports respectively.
As an embodiment, the user equipment used for wireless communication is characterized in that the first processing module further receives downlink information. Wherein the downlink information is used to determine at least one of { the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, the Q1 candidate antenna port groups }.
The application discloses a base station device used for wireless communication, which is characterized by comprising:
the third processing module is used for sending the first type of wireless signals in the first time-frequency resource;
the first sending module is used for sending the target wireless signal in the second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the R being used for multi-antenna related transmission for the target wireless signal, the R being a non-negative integer.
As an embodiment, the base station device used for wireless communication described above is characterized in that the third processing module further receives R second-type wireless signals. Wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
As an embodiment, the above base station apparatus for wireless communication is characterized in that a target beamforming vector is used for monitoring for the target wireless signal, the target beamforming vector is one of Q candidate beamforming vectors, the R is used for determining the target beamforming vector among the Q candidate beamforming vectors, the Q is a positive integer greater than 1.
As an embodiment, the above base station apparatus for wireless communication is characterized in that the target wireless signal is transmitted by a target antenna port group, the target antenna port group is one of Q1 candidate antenna port groups, the R is used for determining the target antenna port group among the Q1 candidate antenna port groups, the Q1 is a positive integer greater than 1, and the antenna port group includes a positive integer number of antenna ports.
As an embodiment, the above base station apparatus for wireless communication is characterized in that a first beamforming vector is used for reception of the R first type wireless signals.
As an embodiment, the above base station device for wireless communication is characterized in that any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group is used for transmitting any one of the R first type wireless signals, and the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports.
As an embodiment, the above-mentioned base station apparatus for wireless communication is characterized in that a second beamforming vector is used for reception of R1 radio signals of the first type, a third beamforming vector is used for reception of R2 radio signals of the first type, the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, respectively, { the R1, the R2} are used for determining the target beamforming vector, and the R1 and the R2 are non-negative integers not greater than R, respectively.
As an embodiment, the base station apparatus for wireless communication described above is characterized in that any antenna port in the second given antenna port group and any antenna port in the second antenna port group are quasi co-located, any antenna port in the third given antenna port group and any antenna port in the third antenna port group are quasi co-located, the second given antenna port group is used to transmit any of the R1 wireless signals of the first type, the third given antenna port group is used to transmit any of the R2 wireless signals of the first type, { the R1, the R2 is used to determine the target antenna port set, { the second given antenna port set, the second antenna port group, the third given antenna port group, the third antenna port group } each include a positive integer number of antenna ports.
As an embodiment, the base station device used for wireless communication is characterized in that the third processing module further transmits downlink information. Wherein the downlink information is used to determine at least one of { the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, the Q1 candidate antenna port groups }.
As an example, compared with the conventional scheme, the method has the following advantages:
in a system that can use multiple transmit/receive beam pairs to transmit a control channel, a base station can determine a transmit beam used by a current control channel according to a transmit beam corresponding to a control channel that has been successfully received and correctly decoded before, and a user can also determine a receive beam used by the current control channel according to a receive beam corresponding to a control channel that has been successfully received and correctly decoded before, so that the probability that the transmit/receive beam pair used by the current control channel matches the current wireless channel is increased, and the transmission quality of the current control channel is improved.
The base station may determine which previously transmitted control channels were successfully received and correctly decoded according to uplink transmission corresponding to the previously transmitted control channels, for example, uplink data transmission corresponding to the downlink dynamic signaling for uplink grant, or uplink control information transmission corresponding to the downlink dynamic signaling for downlink grant.
By limiting the control channel used to determine the currently used transmit/receive beam pair to within a limited time window, the above-described method ensures that only control channels transmitted within the channel coherence time are used to determine the current transmit/receive beam pair, ensuring that the transmit/receive beam pair determined by the above-described method matches the channel experienced by the current control channel.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:
fig. 1 shows a flow diagram of wireless transmission according to an embodiment of the application;
FIG. 2 is a schematic diagram illustrating timing relationships of R wireless signals of the first type, R wireless signals of the second type, and a target wireless signal according to an embodiment of the present application;
fig. 3 shows a schematic diagram of { R, a first beamforming vector, a first set of antenna ports } being used to determine { a target beamforming vector, a set of target antenna ports } according to an embodiment of the application;
fig. 4 shows a schematic diagram of { R, a first beamforming vector, a first antenna port set } being used to determine { target beamforming vector, a target antenna port set } according to an embodiment of the present application;
fig. 5 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 6 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 7 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 8 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 9 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 10 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 11 shows a schematic diagram of { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } being used to determine a { target beamforming vector, target antenna port group } according to an embodiment of the present application;
fig. 12 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;
fig. 13 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application;
fig. 14 shows a schematic diagram of a resource mapping of a first time-frequency resource and a second time-frequency resource on a time-frequency domain according to an embodiment of the application;
fig. 15 shows a schematic diagram of resource mapping of a first time-frequency resource and a second time-frequency resource on a time-frequency domain according to an embodiment of the application.
Example 1
Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintenance base station for user equipment U2. In fig. 1, the step in block F1 is optional.
For N1, downlink information is sent in step S101; transmitting a first type of wireless signal in a first time-frequency resource in step S11; receiving R second-type wireless signals in step S12; the target wireless signal is transmitted in the second time-frequency resource in step S13.
For U2, downlink information is received in step S201; monitoring a first type of wireless signal in a first time-frequency resource in step S21; transmitting R second-type wireless signals in step S22; the target wireless signal is monitored in the second time-frequency resource in step S23.
In embodiment 1, R of the first type of wireless signals are correctly decoded in the first time-frequency resource by the U2, the R is used by the U2 for multi-antenna related monitoring of the target wireless signal, the R is used by the N1 for multi-antenna related transmission of the target wireless signal, the R is a non-negative integer. The R wireless signals of the first type and the R wireless signals of the second type are in one-to-one correspondence, and the wireless signals of the second type are used by the N1 to determine that the corresponding wireless signals of the first type are correctly decoded by the U2. The downlink information is used by the U2 to determine at least one of the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, the Q1 candidate antenna port groups.
As one embodiment, the first type of wireless signal includes DCI.
As one embodiment, the target wireless signal includes DCI.
For one embodiment, the first type of wireless signal includes physical layer signaling.
For one embodiment, the target wireless signal includes physical layer signaling.
As an embodiment, the first type of radio signal is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As an embodiment, the target wireless signal is transmitted on the downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As an embodiment, the downlink physical layer control channel is a PDCCH.
As an embodiment, the downlink physical layer control channel is sPDCCH.
As an embodiment, the downlink physical layer control channel is an NR-PDCCH.
In one embodiment, the downlink physical layer control channel is an NB-PDCCH.
As an embodiment, the first time-frequency resource includes a positive integer number of discontinuous time units in a time domain.
As an example, the time unit is the duration of one wideband symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an OFDM symbol.
As a sub-implementation of the above embodiment, the wideband symbol is a DFT-S-OFDM symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an FBMC symbol.
As an embodiment, the first time-frequency resource includes a positive integer number of consecutive frequency units in a frequency domain.
As an embodiment, the first time-frequency resource includes a positive integer number of discontinuous frequency units in a frequency domain.
As an embodiment, the frequency unit is a bandwidth occupied by one subcarrier.
As an embodiment, the second time-frequency resource comprises a positive integer number of consecutive time units in the time domain.
As an embodiment, the second time-frequency resource comprises a positive integer number of consecutive frequency units in the frequency domain.
As an embodiment, the second time-frequency resource comprises a positive integer number of discontinuous frequency units in the frequency domain.
In one embodiment, the first time-frequency resource is located before the second time-frequency resource in the time domain.
In one embodiment, the second time-frequency resource is within the first time-frequency resource.
As an embodiment, the monitoring refers to receiving based on blind detection, that is, receiving a signal in a given time-frequency resource and performing a decoding operation, and if it is determined that the decoding is correct according to the check bits, determining that the receiving is successful, otherwise, determining that the receiving is failed. The given time-frequency resource is the first time-frequency resource or the second time-frequency resource.
As an example, said R is equal to 0.
As one embodiment, R is greater than 0.
As an embodiment, the correct coding means: the U2 receives the signal in the first time-frequency resource and performs a decoding operation and determines that the decoding is correct based on the check bits.
As an embodiment, the R used by the U2 for multi-antenna related monitoring of the target wireless signal refers to: the R is used by the U2 to determine a beamforming vector for monitoring the target wireless signal.
As an embodiment, the use of the R by the N1 for multi-antenna related transmission for the target wireless signal means: the R is used by the N1 to determine a transmit antenna port set for the target wireless signal.
As an embodiment, the second type of wireless signal includes HARQ-ACK for downlink wireless signals scheduled by the corresponding first type of wireless signal.
For one embodiment, the first type of wireless signal includes dynamic signaling for downlink Grant (downlink ink Grant).
As an embodiment, the first type of radio signal includes scheduling information for the corresponding second type of radio signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.
As an embodiment, the first type of wireless signal includes dynamic signaling for Uplink Grant (Uplink Grant).
For one embodiment, the target wireless signal includes dynamic signaling for Downlink Grant (Downlink Grant).
For one embodiment, the target wireless signal includes dynamic signaling for an Uplink Grant (Uplink Grant).
As an embodiment, the second type of wireless signal includes at least one of { uplink control information, uplink data }.
As an embodiment, the second type of radio signal is transmitted on an uplink physical layer control channel (i.e. an uplink channel that can only be used to carry physical layer signaling).
In one embodiment, the uplink physical layer control channel is a PUCCH.
As an embodiment, the uplink physical layer control channel is sPUCCH.
In one embodiment, the uplink physical layer control channel is an NR-PUCCH.
In one embodiment, the uplink physical layer control channel is an NB-PUCCH.
As an example, the second type of wireless signal is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).
As an embodiment, the uplink physical layer data channel is a PUSCH.
As an embodiment, the uplink physical layer data channel is a sPUSCH.
In one embodiment, the physical layer data channel is NR-PUSCH.
As an embodiment, the uplink physical layer data channel is NB-PUSCH.
As one embodiment, a target beamforming vector is used by the U2 for monitoring for the target wireless signal, the target beamforming vector being one of Q candidate beamforming vectors, the R being used by the U2 to determine the target beamforming vector among the Q candidate beamforming vectors, the Q being a positive integer greater than 1.
As an example, a given beamforming vector used by the U2 for monitoring for a given wireless signal refers to: the U2 configures N physical antennas, the given beamforming vector includes N given elements, and the U2 receives the given wireless signal with the N physical antennas, weights the signals received on the N physical antennas with the N given elements, respectively, and then combines the weighted signals. And the U2 executes decoding operation on the combined signal, and if the decoding is determined to be correct according to the check bits, the given wireless signal is judged to be successfully received, otherwise, the given wireless signal is judged to be failed to be received. And N is a positive integer greater than 1.
As one embodiment, any two of the Q candidate beamforming vectors are unequal.
For one embodiment, the target wireless signal is transmitted by a target antenna port group, the target antenna port group being one of Q1 candidate antenna port groups, the R being used by the N1 to determine the target antenna port group among the Q1 candidate antenna port groups, the Q1 being a positive integer greater than 1, the antenna port groups including a positive integer number of antenna ports.
As an embodiment, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector, where the beamforming vector is formed by a Kronecker product of an analog beamforming vector and a digital beamforming vector.
For one embodiment, different antenna ports within one antenna port group correspond to the same analog beamforming vector.
As an embodiment, different antenna port groups correspond to different analog beamforming vectors.
As an embodiment, different antenna ports within one antenna port group correspond to different digital beamforming vectors.
As an embodiment, the antenna port group includes 1 antenna port, and the beamforming vector corresponding to the antenna port group is equal to the analog beamforming vector corresponding to the antenna port group.
For one embodiment, the antenna port group includes a plurality of the antenna ports.
As one example, the Q1 is equal to the Q.
As an embodiment, the Q candidate beamforming vectors and the Q1 candidate antenna port groups are in a one-to-one correspondence, the Q1 being equal to the Q.
For one embodiment, the Q1 is not equal to the Q.
As an embodiment, any two of the Q1 candidate antenna port groups are not identical.
For one embodiment, a first beamforming vector is used by the U2 for reception of the R wireless signals of the first type.
As one embodiment, the first beamforming vector is one of the Q candidate beamforming vectors.
For one embodiment, the first beamforming vector is used by the U2 to determine the target beamforming vector.
For one embodiment, the first beamforming vector is used by the U2 for monitoring for at least one wireless signal of the first type.
As one embodiment, the use of a given beamforming vector by the U2 for reception of a given wireless signal refers to: the U2 configures N physical antennas, the given beamforming vector includes N given elements, and the U2 receives the given wireless signal with the N physical antennas, weights the signals received on the N physical antennas with the N given elements, respectively, and then combines the weighted signals.
As an embodiment, any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group being used by the N1 to transmit any one of the R first type wireless signals, the first given antenna port group and the first antenna port group respectively including a positive integer number of antenna ports.
As one embodiment, the Quasi-Co-location refers to QCL (Quasi Co-Located).
As an embodiment, two of the antenna ports being of the QCL means: the large-scale characteristics of the channel experienced by the radio signal transmitted on one of the antenna ports can be deduced from the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on the other antenna port. The large-scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation }.
As an embodiment, two of the antenna ports being of the QCL means: the two antenna ports correspond to the same analog beamforming vector.
As an embodiment, two of the antenna ports being of the QCL means: the U2 may receive the wireless signals transmitted on the two antenna ports with the same beamforming vector.
As an embodiment, the R first type wireless signals are all transmitted by the first antenna port group.
For one embodiment, the first antenna port group is used by the N1 to determine the target antenna port group.
For one embodiment, the first antenna port group is one of the Q1 candidate antenna port groups.
For one embodiment, the first antenna port group and a first reference antenna port group are QCL, the first reference antenna port group being used by the N1 to transmit at least one of the first type of wireless signals.
As an embodiment, a second beamforming vector is used by the U2 for reception of R1 wireless signals of the first type, a third beamforming vector is used by the U2 for reception of R2 wireless signals of the first type, the R1 wireless signals of the first type and the R2 wireless signals of the first type are subsets of the R wireless signals of the first type, respectively, { the R1, the R2} are used by the U2 for determining the target beamforming vector, and the R1 and the R2 are non-negative integers not greater than R, respectively.
As one embodiment, the second beamforming vector and the third beamforming vector belong to the Q candidate beamforming vectors, respectively.
As one embodiment, the Q candidate beamforming vectors include the second beamforming vector and the third beamforming vector, the Q being equal to 2.
As one embodiment, the second beamforming vector is not equal to the third beamforming vector.
As one embodiment, the second beamforming vector is used by the U2 for monitoring for wireless signals of the first type other than at least one of the R2 wireless signals of the first type.
As an embodiment, the third beamforming vector is used by the U2 for monitoring for the first type of wireless signals other than at least one of the R1 of the first type of wireless signals.
As an embodiment, the sum of the R1 and the R2 is equal to the R.
As one embodiment, the sum of the R1 and the R2 is less than the R.
As one embodiment, the sum of the R1 and the R2 is greater than the R.
As an embodiment, any antenna port in the second given antenna port group and any antenna port in the second antenna port group are quasi co-located, any antenna port in the third given antenna port group and any antenna port in the third antenna port group are quasi co-located, the second given antenna port group being used by the N1 to transmit any of the R1 wireless signals of the first type, the third given antenna port group is used by the N1 to transmit any of the R2 wireless signals of the first type, { the R1, the R2 is used by the N1 to determine the target antenna port group, { the second given antenna port group, the second antenna port group, the third given antenna port group, the third antenna port group } each include a positive integer number of antenna ports.
For one embodiment, the R1 first-type wireless signals are all transmitted by the second antenna port group.
For one embodiment, the R2 first-type wireless signals are all transmitted by the third antenna port group.
As an embodiment, the second antenna port group and the third antenna port group belong to the Q1 candidate antenna port groups, respectively.
For one embodiment, the Q1 candidate antenna port groups include the second antenna port group and the third antenna port group, and Q1 is equal to 2.
For one embodiment, the second antenna port group and the third antenna port group are different.
For one embodiment, the second antenna port group and a second reference antenna port group are QCL, the second reference antenna port group being used by the N1 to transmit at least one of the first type of wireless signals other than the R2 first type of wireless signals.
For one embodiment, the third set of antenna ports and a third set of reference antenna ports are QCL, the third set of reference antenna ports being used by the N1 to transmit at least one wireless signal of the first type other than the R1 wireless signals of the first type.
As an embodiment, the downlink information is carried by higher layer signaling.
As an embodiment, the downlink information is carried by RRC (Radio Resource Control) signaling.
As an example, block F1 in fig. 1 exists.
As an example, block F1 in fig. 1 does not exist.
Example 2
Embodiment 2 illustrates a schematic timing relationship diagram of R first-type wireless signals, R second-type wireless signals and a target wireless signal, as shown in fig. 2. In fig. 2, the indexes of the R first-type wireless signals are # {0, 1, 2, …, R-1 }; the indices of the R second-type wireless signals are # {0, 1, 2, …, Q-1}, respectively.
In embodiment 2, the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence. Time domain resources occupied by any two of the R first-type wireless signals are orthogonal (i.e., do not overlap); time domain resources occupied by any two of the R second-type wireless signals are orthogonal (i.e., do not overlap); time domain resources occupied by any one of the R first-type wireless signals and any one of the R second-type wireless signals are orthogonal (i.e., do not overlap). Time domain resources occupied by any one of the R first-type wireless signals and the target wireless signal are orthogonal (i.e., do not overlap); the time domain resources occupied by any one of the second type radio signals and the target radio signal are orthogonal (i.e. there is no overlap). The time domain resource occupied by the first type wireless signal # i in the R first type wireless signals is before the first type wireless signal # j in the R first type wireless signals, the time domain resource occupied by the second type wireless signal # i is before the time domain resource occupied by the second type wireless signal # j, the i and the j are respectively non-negative integers smaller than R, and the i is larger than the j. The time domain resource occupied by the first type wireless signal # i in the R first type wireless signals is before the time domain resource occupied by the second type wireless signal # i. The time domain resource occupied by the target radio signal is after the last radio signal of the second type, i.e. radio signal #0 in fig. 2.
As an embodiment, the second type of wireless signal includes HARQ-ACK for downlink wireless signals scheduled by the corresponding first type of wireless signal.
For one embodiment, the first type of wireless signal includes dynamic signaling for downlink Grant (downlink ink Grant).
As an embodiment, the first type of radio signal includes scheduling information for the corresponding second type of radio signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.
As an embodiment, the first type of wireless signal includes dynamic signaling for Uplink Grant (Uplink Grant).
For one embodiment, the target wireless signal includes dynamic signaling for Downlink Grant (Downlink Grant).
For one embodiment, the target wireless signal includes dynamic signaling for an Uplink Grant (Uplink Grant).
Example 3
Embodiment 3 illustrates a schematic diagram in which R, the first beamforming vector, the first antenna port group } is used to determine a target beamforming vector, a target antenna port group, as shown in fig. 3.
In embodiment 3, R is greater than 0, and the R first-type wireless signals in this application are correctly decoded. The target beamforming vector is used for monitoring for the target wireless signal in the present application, the target beamforming vector being one of Q candidate beamforming vectors. The target wireless signal is transmitted by the target antenna port group, which is one of the candidate antenna port groups of Q1 candidate antenna port groups. The first beamforming vector is used for reception of the R wireless signals of the first type, the first beamforming vector being one of the Q candidate beamforming vectors. A first given antenna port group is used to transmit any of the R first type of wireless signals, any antenna port of the first given antenna port group and any antenna port of the first antenna port group being QCL, the first antenna port group being one of the Q1 candidate antenna port groups. The target beamforming vector is equal to the first beamforming vector, the target antenna port group being the first antenna port group. The antenna port group comprises a positive integer number of antenna ports. Said Q and said Q1 are each positive integers greater than 1.
In fig. 3, the solid-lined frame left-diagonal filled ellipse represents the first antenna port group, the dashed-lined frame left-diagonal filled ellipse represents the first beamforming vector, and any one of the antenna ports in the antenna port group and any one of the antenna ports in the first antenna port group represented by the solid-lined box small-dot filled ellipse are QCL.
As an embodiment, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector, where the beamforming vector is formed by a Kronecker product of an analog beamforming vector and a digital beamforming vector.
For one embodiment, different antenna ports within one antenna port group correspond to the same analog beamforming vector.
As an embodiment, different antenna port groups correspond to different analog beamforming vectors.
As an embodiment, different antenna ports within one antenna port group correspond to different digital beamforming vectors.
As an embodiment, the antenna port group includes 1 antenna port, and the beamforming vector corresponding to the antenna port group is equal to the analog beamforming vector corresponding to the antenna port group.
For one embodiment, the antenna port group includes a plurality of the antenna ports.
As one embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are QCL.
As an embodiment, two of the antenna ports being of the QCL means: the large-scale characteristics of the channel experienced by the radio signal transmitted on one of the antenna ports can be deduced from the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on the other antenna port. The large-scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation }.
As an embodiment, two of the antenna ports being of the QCL means: the two antenna ports correspond to the same analog beamforming vector.
As an embodiment, two of the antenna ports being of the QCL means: the user equipment may receive the wireless signals transmitted on the two antenna ports with the same beamforming vector.
As an embodiment, the R first type wireless signals are all transmitted by the first antenna port group.
As one example, the Q1 is equal to the Q.
As an embodiment, the Q candidate beamforming vectors and the Q1 candidate antenna port groups are in a one-to-one correspondence, the Q1 being equal to the Q.
For one embodiment, the Q1 is not equal to the Q.
As one embodiment, any two of the Q candidate beamforming vectors are unequal.
As an embodiment, any two of the Q1 candidate antenna port groups are not identical.
As an example, Q is equal to 2.
As one embodiment, Q is greater than 2.
As an example, Q1 is equal to 2.
As one example, the Q1 is greater than 2.
As an embodiment, the time domain resources occupied by the R first type wireless signals are located in W time units before the time domain resources occupied by the target wireless signals, and the W time units are adjacent to the time domain resources occupied by the target wireless signals in the time domain. And W is a positive integer.
As a sub-embodiment of the above embodiment, the W is configured by higher layer signaling.
As a sub-embodiment of the foregoing embodiment, the W is configured by the downlink information in this application.
As an example, the time unit is the duration of one wideband symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an OFDM symbol.
As a sub-implementation of the above embodiment, the wideband symbol is a DFT-S-OFDM symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an FBMC symbol.
Example 4
Embodiment 4 illustrates a schematic diagram in which R, the first beamforming vector, the first antenna port group } is used to determine a target beamforming vector, a target antenna port group, as shown in fig. 4.
In embodiment 4, R is equal to 0, i.e. all the first type of radio signals in the present application are not decoded correctly. The target beamforming vector is used for monitoring for the target wireless signal in the present application, the target beamforming vector being one of Q candidate beamforming vectors. The target wireless signal is transmitted by the target antenna port group, which is one of the candidate antenna port groups of Q1 candidate antenna port groups. The first beamforming vector is used for monitoring for at least one wireless signal of the first type, the first beamforming vector being one of the Q candidate beamforming vectors. The first antenna port group is used for transmitting at least one wireless signal of the first type, and the first antenna port group is one of the Q1 candidate antenna port groups. The target beamforming vector is not equal to the first beamforming vector, the target group of antenna ports and the first group of antenna ports being different. Both said Q and said Q1 are equal to 2.
In fig. 4, the solid-lined left-slashed filled ellipses represent the first antenna port group, the dashed-lined left-slashed filled ellipses represent the first beamforming vector, the solid-lined cross-hatched filled ellipses represent the Q1 candidate antenna port groups that are not equal to the first antenna port group, and the dashed-lined cross-hatched filled ellipses represent the Q candidate beamforming vectors that are not equal to the first beamforming vector.
As an embodiment, the target beamforming vector is the candidate beamforming vector of the Q candidate beamforming vectors that is not equal to the first beamforming vector, i.e., the candidate beamforming vector represented by an ellipse filled by the cross line of the dashed border in fig. 4.
As an embodiment, the two antenna port groups are different, that is: the small scale characteristics of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used to infer the small scale characteristics of the wireless channel experienced by the signal transmitted by the second antenna port. The first antenna port and the second antenna port are respectively any one of the antenna ports in the two antenna port groups, and the small-scale characteristic includes a channel impulse response.
As an embodiment, the two antenna port groups are different, that is: joint channel estimation cannot be performed using the reference signal transmitted by the first antenna port and the reference signal transmitted by the second antenna port. The first antenna port and the second antenna port are each any one of the antenna ports in the two antenna port groups.
As an embodiment, the two antenna port groups are different, that is: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port are different. The first antenna port and the second antenna port are each any one of the antenna ports in the two antenna port groups.
As an embodiment, the two antenna port groups are different, that is: the analog beamforming vectors corresponding to the two antenna port groups are different.
As one embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the first antenna port group are not QCL.
As an embodiment, the two antenna ports not being of the QCL means: the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on one of the antenna ports cannot be inferred from the large-scale characteristics (properties) of the channel experienced by the radio signal transmitted on the other antenna port. The large-scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation }.
As an embodiment, the two antenna ports not being of the QCL means: the two antenna ports correspond to different analog beamforming vectors.
As an embodiment, the two antenna ports not being of the QCL means: the user equipment may not receive the wireless signals transmitted on the two antenna ports with the same beamforming vector.
As an embodiment, the target antenna port group is the candidate antenna port group of the Q1 candidate antenna port groups that is not equal to the first antenna port group, i.e., the candidate antenna port group is represented by an ellipse filled by a solid-line frame cross line in fig. 4.
Example 5
Embodiment 5 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 5.
In embodiment 5, R1 is greater than 0 and R2 is equal to 0. The second beamforming vector is used for reception of the R1 first type wireless signals, and the third beamforming vector is used for monitoring of the first type wireless signals except for at least one of the R1 first type wireless signals. The second beamforming vector and the third beamforming vector belong to the Q candidate beamforming vectors, respectively. A second given set of antenna ports is used to transmit any of the R1 wireless signals of the first type, and a third set of reference antenna ports is used to transmit at least one wireless signal of the first type other than the R1 wireless signals of the first type. Any antenna port in the second given antenna port group and any antenna port in the second antenna port group are QCL, any antenna port in the third reference antenna port group and any antenna port in the third antenna port group are QCL, and the second antenna port group and the third antenna port group respectively belong to the Q1 candidate antenna port groups. { the second given antenna port group, the second antenna port group, the third reference antenna port group, the third antenna port group } include a positive integer number of antenna ports, respectively. Said Q and said Q1 are each equal to 2. The target beamforming vector is equal to the second beamforming vector, the target antenna port group and the second antenna port group being the same.
In fig. 5, the ellipse filled with the solid-line frame left oblique line represents the second antenna port group, the ellipse filled with the dotted-line frame left oblique line represents the second beamforming vector, the ellipse filled with the solid-line frame cross line represents the third antenna port group, the ellipse filled with the dotted-line frame cross line represents the third beamforming vector, any one of the antenna ports in the antenna port group and any one of the antenna ports in the second antenna port group represented by the ellipse filled with the solid-line frame right oblique line are QCL, and any one of the antenna ports in the antenna port group and any one of the antenna ports in the third antenna port group represented by the ellipse filled with the solid-line frame small dots is QCL.
For one embodiment, the R1 first-type wireless signals are all transmitted by the second antenna port group.
As an embodiment, at least one wireless signal of the first type other than the R1 wireless signals of the first type is transmitted by the third antenna port group.
As one embodiment, the second beamforming vector is not equal to the third beamforming vector.
As one embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the second antenna port group are QCL.
As an embodiment, the sum of the R1 and the R2 is equal to the R.
As one embodiment, the sum of the R1 and the R2 is less than the R.
As one embodiment, the sum of the R1 and the R2 is greater than the R.
Example 6
Example 6 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 6.
In embodiment 6, R1 is equal to 0 and R2 is greater than 0. The second beamforming vector is used for monitoring for at least one of the first type of wireless signals other than the R2 first type of wireless signals herein, and the third beamforming vector is used for reception of the R2 first type of wireless signals. The second beamforming vector and the third beamforming vector belong to the Q candidate beamforming vectors, respectively. The second antenna port group is used for transmitting at least one of the first type wireless signals except for the R2 first type wireless signals, the third antenna port group is used for transmitting the R2 first type wireless signals, and the second antenna port group and the third antenna port group respectively belong to the Q1 candidate antenna port groups. Said Q and said Q1 are each equal to 2. The time domain resource occupied by the target wireless signal in the present application is located in the first time resource pool in the present application. The target beamforming vector is equal to the second beamforming vector, the target antenna port group and the second antenna port group being the same.
In fig. 6, the ellipses filled with the left oblique lines of the solid line frame represent the second antenna port group, the ellipses filled with the left oblique lines of the dotted line frame represent the second beamforming vector, the ellipses filled with the cross lines of the solid line frame represent the third antenna port group, and the ellipses filled with the cross lines of the dotted line frame represent the third beamforming vector.
For one embodiment, the R2 first-type wireless signals are all transmitted by the third antenna port group.
As an embodiment, at least one wireless signal of the first type out of the R2 wireless signals of the first type is transmitted by the second antenna port group.
As an embodiment, the first time resource pool and the second time resource pool in the present application are configured by a higher layer signaling respectively.
As an embodiment, the downlink information in the present application is used to determine the first time resource pool and the second time resource pool.
As an embodiment, the first time resource pool appears multiple times in the time domain, the second time resource pool appears multiple times in the time domain, and an interval between any two adjacent occurrences of the first time resource pool in the time domain is smaller than an interval between any two adjacent occurrences of the second time resource pool in the time domain.
As an embodiment, the first time resource pool and the second time resource pool are mutually orthogonal (non-overlapping) in the time domain.
Example 7
Example 7 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 7.
In example 7, the R1 is equal to 0 and the R2 is greater than 0. The second beamforming vector is used for monitoring for at least one of the first type of wireless signals other than the R2 first type of wireless signals herein, and the third beamforming vector is used for reception of the R2 first type of wireless signals. The second beamforming vector and the third beamforming vector belong to the Q candidate beamforming vectors, respectively. The second antenna port group is used for transmitting at least one of the first type wireless signals except for the R2 first type wireless signals, the third antenna port group is used for transmitting the R2 first type wireless signals, and the second antenna port group and the third antenna port group respectively belong to the Q1 candidate antenna port groups. Said Q and said Q1 are each equal to 2. The time domain resource occupied by the target wireless signal in this application is located in the second time resource pool in this application. The target beamforming vector is equal to the third beamforming vector, the target and third antenna port groups being the same.
In fig. 7, the ellipses filled with the left oblique lines of the solid line frame represent the second antenna port group, the ellipses filled with the left oblique lines of the dotted line frame represent the second beamforming vector, the ellipses filled with the cross lines of the solid line frame represent the third antenna port group, and the ellipses filled with the cross lines of the dotted line frame represent the third beamforming vector.
As one embodiment, any of the antenna ports in the target antenna port group and any of the antenna ports in the third antenna port group are QCL.
Example 8
Embodiment 8 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 8.
In embodiment 8, R1 is equal to 0 and R2 is equal to 0. The second beamforming vector is used for monitoring of at least one of the first type of wireless signals in the present application, and the third beamforming vector is used for monitoring of at least one of the first type of wireless signals. The second antenna port set is used for transmitting at least one wireless signal of the first type, and the third antenna port set is used for transmitting at least one wireless signal of the first type. The time domain resource occupied by the target wireless signal in the present application is located in the first time resource pool in the present application. The target beamforming vector is equal to the second beamforming vector, the target antenna port group and the second antenna port group being the same.
In fig. 8, the ellipses filled with the left oblique lines of the solid line frame represent the second antenna port group, the ellipses filled with the left oblique lines of the dotted line frame represent the second beamforming vector, the ellipses filled with the cross lines of the solid line frame represent the third antenna port group, and the ellipses filled with the cross lines of the dotted line frame represent the third beamforming vector.
Example 9
Example 9 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 9.
In example 9, R1 equals 0 and R2 equals 0. The second beamforming vector is used for monitoring of at least one of the first type of wireless signals in the present application, and the third beamforming vector is used for monitoring of at least one of the first type of wireless signals. The second antenna port set is used for transmitting at least one wireless signal of the first type, and the third antenna port set is used for transmitting at least one wireless signal of the first type. The time domain resource occupied by the target wireless signal in this application is located in the second time resource pool in this application. The target beamforming vector is equal to the third beamforming vector, the target and third antenna port groups being the same.
In fig. 9, the ellipses filled with the left oblique lines of the solid line frame represent the second antenna port group, the ellipses filled with the left oblique lines of the dotted line frame represent the second beamforming vector, the ellipses filled with the cross lines of the solid line frame represent the third antenna port group, and the ellipses filled with the cross lines of the dotted line frame represent the third beamforming vector.
Example 10
Embodiment 10 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 10.
In example 10, the R1 is greater than 0 and the R2 is greater than 0. The second beamforming vector is used for reception of the R1 first type wireless signals, and the third beamforming vector is used for reception of the R2 first type wireless signals. The second antenna port group is used for transmitting the R1 wireless signals of the first type, and the third antenna port group is used for transmitting the R2 wireless signals of the first type. The time domain resource occupied by the target wireless signal in the present application is located in the first time resource pool in the present application. The target beamforming vector is equal to the second beamforming vector, the target antenna port group and the second antenna port group being the same.
In fig. 10, the ellipses filled with the left oblique lines of the solid line frame represent the second antenna port group, the ellipses filled with the left oblique lines of the dotted line frame represent the second beamforming vector, the ellipses filled with the cross lines of the solid line frame represent the third antenna port group, and the ellipses filled with the cross lines of the dotted line frame represent the third beamforming vector.
As an embodiment, the time domain resources occupied by the R1 first-type wireless signals are located in W1 time units before the time domain resources occupied by the target wireless signals, the time domain resources occupied by the R2 first-type wireless signals are located in W2 time units before the time domain resources occupied by the target wireless signals, and the W1 time units and the W2 time units are respectively adjacent to the time domain resources occupied by the target wireless signals in the time domain. The W1 and the W2 are each positive integers.
As a sub-embodiment of the above embodiment, the W1 is smaller than the W2.
As a sub-embodiment of the above embodiment, the W1 and the W2 are configured by higher layer signaling respectively.
As a sub-embodiment of the above embodiment, the downstream information in the present application is used to determine the W1 and the W2.
Example 11
Embodiment 11 illustrates a schematic diagram in which { R1, R2, second beamforming vector, third beamforming vector, second antenna port group, third antenna port group } is used to determine { target beamforming vector, target antenna port group }, as shown in fig. 11.
In example 11, the R1 is greater than 0 and the R2 is greater than 0. The second beamforming vector is used for reception of the R1 first type wireless signals, and the third beamforming vector is used for reception of the R2 first type wireless signals. The second antenna port group is used for transmitting the R1 wireless signals of the first type, and the third antenna port group is used for transmitting the R2 wireless signals of the first type. The time domain resource occupied by the target wireless signal in this application is located in the second time resource pool in this application. The target beamforming vector is equal to the third beamforming vector, the target and third antenna port groups being the same.
In fig. 11, the ellipses filled with the left oblique lines of the solid line frame represent the second antenna port group, the ellipses filled with the left oblique lines of the dotted line frame represent the second beamforming vector, the ellipses filled with the cross lines of the solid line frame represent the third antenna port group, and the ellipses filled with the cross lines of the dotted line frame represent the third beamforming vector.
Example 12
Embodiment 12 is a block diagram illustrating a processing apparatus used in a user equipment, as shown in fig. 12. In fig. 12, a processing device 200 in a user equipment is mainly composed of a first processing module 201 and a second processing module 202.
In embodiment 12, the first processing module 201 monitors a first type of wireless signals in a first time-frequency resource; the second processing module 202 monitors the target wireless signal in a second time-frequency resource.
In embodiment 12, R wireless signals of the first type are correctly decoded in the first time-frequency resource by the first processing module 201, the R is used for multi-antenna related monitoring for the target wireless signal by the second processing module 202, and the R is a non-negative integer.
As an embodiment, if the R is greater than a certain threshold, the beamforming vectors used by the user equipment to receive the R first type wireless signals are used to monitor the target wireless signal; otherwise, beamforming vectors other than the beamforming vectors used by the user equipment for monitoring the R first type wireless signals are used for monitoring the target wireless signal. The particular threshold is a non-negative integer.
As an embodiment, the beamforming vectors used by the user equipment for monitoring the R first type wireless signals are configurable.
As one embodiment, the specific threshold is 0.
As one embodiment, the specific threshold is greater than 0.
For one embodiment, the first processing module 201 is further configured to transmit R second-type wireless signals. Wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
As an embodiment, a target beamforming vector is used by the second processing module 202 for monitoring for the target wireless signal at the user equipment side, the target beamforming vector being one of Q candidate beamforming vectors, the R being used by the second processing module 202 for determining the target beamforming vector among the Q candidate beamforming vectors, the Q being a positive integer greater than 1.
For one embodiment, the target wireless signal is transmitted by a target antenna port group, the target antenna port group being one of Q1 candidate antenna port groups, the R being used by the second processing module 202 to determine the target antenna port group among the Q1 candidate antenna port groups, the Q1 being a positive integer greater than 1, the antenna port groups including a positive integer number of antenna ports.
For one embodiment, a first beamforming vector is used by the first processing module 201 for reception of the R first type wireless signals at the user equipment side.
As an embodiment, the first processing module 201 assumes that any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group is used for transmitting any one of the R first type wireless signals, and the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports.
As an embodiment, a second beamforming vector is used by the first processing module 201 for reception of R1 radio signals of the first type at the user equipment side, a third beamforming vector is used by the first processing module 201 for reception of R2 radio signals of the first type at the user equipment side, the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, respectively, { the R1, the R2} are used by the second processing module 202 for determining the target beamforming vector, and the R1 and the R2 are non-negative integers not larger than the R, respectively.
As an embodiment, the first processing module 201 assumes that any antenna port in a second given antenna port group and any antenna port in a second antenna port group are quasi co-located, the first processing module 201 assumes that any antenna port in a third given antenna port group and any antenna port in a third antenna port group are quasi co-located, the second given antenna port group is used for transmitting any of the R1 wireless signals of the first type, the third given antenna port group is used for transmitting any of the R2 wireless signals of the first type, the { R1, the R2} is used by the second processing module 202 to determine the target antenna port group, { the second given antenna port group, the second antenna port group, the third given antenna port group, the third antenna port group comprises a positive integer number of antenna ports respectively.
As an embodiment, the first processing module 201 further receives downlink information. Wherein the downlink information is used by the first processing module 201 and the second processing module 202 to determine at least one of { the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, and the Q1 candidate antenna port groups }.
As an embodiment, if R is greater than a specific threshold, the user equipment assumes that the transmit antenna port group of the R first type wireless signals and the transmit antenna port group of the target wireless signal are the same; otherwise the transmit antenna port groups of the R first type wireless signals and the transmit antenna port group of the target wireless signal cannot be assumed to be the same. The specific threshold is greater than or equal to 0.
As an embodiment, if R is greater than a specific threshold, the ue assumes that the R transmit antenna port groups of the first type of radio signals and the transmit antenna port group of the target radio signal correspond to the same beamforming vector; otherwise, the beamforming vectors corresponding to the R transmit antenna port groups of the first type of wireless signals and the beamforming vector corresponding to the transmit antenna port group of the target wireless signal cannot be considered to be the same. The specific threshold is greater than or equal to 0.
Example 13
Embodiment 13 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 13. In fig. 13, the processing means 300 in the base station is mainly composed of a third processing module 301 and a first transmitting module 302.
In embodiment 13, the third processing module 301 transmits a first type of wireless signal in a first time-frequency resource; the first transmitting module 302 transmits the target wireless signal in the second time-frequency resource.
In embodiment 13, R of the first type of radio signals are correctly decoded in the first time-frequency resource, the R being used by the first transmission module 302 for multi-antenna dependent transmission of the target radio signal, the R being a non-negative integer.
For one embodiment, the third processing module 301 further receives R second-type wireless signals. The R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used by the third processing module 301 to determine that the corresponding first-type wireless signals are correctly decoded.
As one embodiment, a target beamforming vector is used for monitoring for the target wireless signal, the target beamforming vector being one of Q candidate beamforming vectors, the R being used to determine the target beamforming vector among the Q candidate beamforming vectors, the Q being a positive integer greater than 1.
For one embodiment, the target wireless signal is transmitted by a target antenna port group, the target antenna port group being one of Q1 candidate antenna port groups, the R being used by the first transmitting module 302 to determine the target antenna port group among the Q1 candidate antenna port groups, the Q1 being a positive integer greater than 1, the antenna port groups including a positive integer number of antenna ports.
As one embodiment, a first beamforming vector is used for reception of the R wireless signals of the first type.
As an embodiment, any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group is used by the third processing module 301 to transmit any one of the R first type wireless signals, and the first given antenna port group and the first antenna port group respectively include a positive integer number of antenna ports.
As an embodiment, a second beamforming vector is used for reception of R1 wireless signals of the first type, a third beamforming vector is used for reception of R2 wireless signals of the first type, the R1 wireless signals of the first type and the R2 wireless signals of the first type are respectively subsets of the R wireless signals of the first type, { the R1, the R2} are used for determining the target beamforming vector, and the R1 and the R2 are respectively non-negative integers not greater than the R.
As an embodiment, any antenna port of the second given antenna port group and any antenna port of the second antenna port group are quasi co-located, any antenna port of the third given antenna port group and any antenna port of the third antenna port group are quasi co-located, the second given antenna port group is used by the third processing module 301 to transmit any one of the R1 radio signals of the first type, the third given antenna port group is used by the third processing module 301 to transmit any one of the R2 radio signals of the first type, { the R1, the R2} is used by the first transmitting module 302 to determine the target antenna port group, { the second given antenna port group, the second antenna port group, the third given antenna port group, the third antenna port group comprises a positive integer number of antenna ports respectively.
As an embodiment, the third processing module 301 further sends downlink information. Wherein the downlink information is used to determine at least one of { the first time-frequency resource, the second time-frequency resource, the Q candidate beamforming vectors, the Q1 candidate antenna port groups }.
Example 14
Embodiment 14 illustrates a schematic diagram of resource mapping of a first time-frequency resource and a second time-frequency resource in a time-frequency domain, as shown in fig. 14.
In embodiment 14, the first time-frequency resource comprises a positive integer number of discontinuous time units in the time domain and a positive integer number of continuous frequency units in the frequency domain. The second time-frequency resource comprises a positive integer of continuous time units in a time domain and comprises a positive integer of continuous frequency units in a frequency domain. The first time-frequency resource is located before the second time-frequency resource in the time domain.
In fig. 14, the boxes filled with left oblique lines represent the first time-frequency resources, and the boxes filled with cross lines represent the second time-frequency resources.
As an example, the time unit is the duration of one wideband symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is an OFDM symbol.
As a sub-embodiment of the above embodiment, the wideband symbol is a DFT-S-OFDM number.
As a sub-embodiment of the above embodiment, the wideband symbol is an FBMC symbol.
As an embodiment, the frequency unit is a bandwidth occupied by one subcarrier.
Example 15
Embodiment 15 illustrates a schematic diagram of resource mapping of a first time-frequency resource and a second time-frequency resource in a time-frequency domain, as shown in fig. 15.
In embodiment 15, the first time-frequency resource comprises a positive integer number of discontinuous time units in the time domain and a positive integer number of discontinuous frequency units in the frequency domain. The second time-frequency resource comprises a positive integer of continuous time units in a time domain and a positive integer of discontinuous frequency units in a frequency domain. The second time frequency resource is within the first time frequency resource.
In fig. 15, the boxes filled with left slashes and the boxes filled with cross lines collectively represent the first time-frequency resource, and the boxes filled with cross lines represent the second time-frequency resource.
In one embodiment, the first time-frequency resource includes the second time-frequency resource.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The user equipment or the terminal in the application comprises but is not limited to a mobile phone, a tablet computer, a notebook, an internet card, an internet of things communication module, vehicle-mounted communication equipment, an NB-IOT terminal, an eMTC terminal and other wireless communication equipment. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (44)

1. A method in a user equipment for wireless communication, comprising:
-step a. monitoring a first type of radio signal in a first time-frequency resource;
-step b. monitoring the target radio signal in the second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the monitoring action being associated with multiple antennas; the value of R is used for the monitoring behavior related to multiple antennas for the target wireless signal, the R being a non-negative integer.
2. The method of claim 1, wherein step a further comprises:
-step A0. transmitting R second type radio signals;
wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
3. The method according to claim 1 or 2, wherein a target beamforming vector is used for monitoring for the target wireless signal at the user equipment side, the target beamforming vector being one of Q candidate beamforming vectors, the value of R being used for determining the target beamforming vector among the Q candidate beamforming vectors, Q being a positive integer greater than 1.
4. The method of claim 1 or 2, wherein the target wireless signal is transmitted by a target antenna port group, wherein the target antenna port group is one of Q1 candidate antenna port groups, wherein the value of R is used to determine the target antenna port group among the Q1 candidate antenna port groups, wherein Q1 is a positive integer greater than 1, and wherein the antenna port groups comprise a positive integer number of antenna ports.
5. The method according to claim 1 or 2, characterized in that a first beamforming vector is used for reception of said R radio signals of said first type at said user equipment side.
6. The method according to claim 1 or 2, wherein the user equipment assumes that any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group being used for transmitting any one of the R first type radio signals, the first given antenna port group and the first antenna port group respectively comprising a positive integer number of antenna ports.
7. The method of claim 3, wherein a second beamforming vector is used for reception of R1 radio signals of the first type at the user equipment side, wherein a third beamforming vector is used for reception of R2 radio signals of the first type at the user equipment side, wherein the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, wherein the R1 and the R2 are used for determining the target beamforming vector, and wherein the R1 and the R2 are non-negative integers not greater than the R.
8. The method of claim 4, wherein the user equipment assumes that any antenna port of a second given group of antenna ports and any antenna port of a second group of antenna ports are quasi co-located, wherein the user equipment assumes that any antenna port of a third given group of antenna ports and any antenna port of a third group of antenna ports are quasi co-located, wherein the second given group of antenna ports is used for transmitting any of the R1 radio signals of the first type, wherein the third given group of antenna ports is used for transmitting any of the R2 radio signals of the first type, and wherein the R1 and the R2 are used for determining the target group of antenna ports; the second given antenna port group, the second antenna port group, the third given antenna port group, and the third antenna port group each include a positive integer number of antenna ports.
9. The method of claim 1 or 2, further comprising:
-step c. receiving downlink information;
wherein the downlink information is used to determine at least one of the first time-frequency resource or the second time-frequency resource.
10. The method of claim 3, further comprising:
-step c. receiving downlink information;
wherein the downlink information is used to determine the Q candidate beamforming vectors.
11. The method of claim 4, further comprising:
-step c. receiving downlink information;
wherein the downlink information is used to determine the Q1 candidate antenna port groups.
12. A method in a base station used for wireless communication, comprising:
-a. transmitting a first type of radio signal in a first time-frequency resource;
-step b. transmitting the target radio signal in a second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, and the transmitting action is related to multiple antennas; the value of R is used for the transmit behavior related to multiple antennas for the target wireless signal, the R being a non-negative integer.
13. The method of claim 12, wherein step a further comprises:
-step A0. receiving R second type radio signals;
wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
14. The method of claim 12 or 13, wherein a target beamforming vector is used for monitoring for the target wireless signal, wherein the target beamforming vector is one of Q candidate beamforming vectors, wherein the value of R is used for determining the target beamforming vector among the Q candidate beamforming vectors, and wherein Q is a positive integer greater than 1.
15. The method of claim 12 or 13, wherein the target wireless signal is transmitted by a target antenna port group, wherein the target antenna port group is one of Q1 candidate antenna port groups, wherein the value of R is used to determine the target antenna port group among the Q1 candidate antenna port groups, wherein Q1 is a positive integer greater than 1, and wherein the antenna port groups comprise a positive integer number of antenna ports.
16. The method according to claim 12 or 13, wherein a first beamforming vector is used for reception of said R radio signals of said first type.
17. The method according to claim 12 or 13, wherein any antenna port of a first given antenna port group and any antenna port of a first antenna port group are quasi co-located, the first given antenna port group being used for transmitting any of the R first type wireless signals, the first given antenna port group and the first antenna port group respectively comprising a positive integer number of antenna ports.
18. The method of claim 14, wherein a second beamforming vector is used for reception of R1 radio signals of the first type, wherein a third beamforming vector is used for reception of R2 radio signals of the first type, wherein the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, wherein the R1 and the R2 are used for determining the target beamforming vector, wherein the R1 and the R2 are non-negative integers not greater than the R.
19. The method of claim 15, wherein any antenna port of a second given antenna port group and any antenna port of a second antenna port group are quasi co-located, wherein any antenna port of a third given antenna port group and any antenna port of a third antenna port group are quasi co-located, wherein the second given antenna port group is used for transmitting any of the R1 first type wireless signals, wherein the third given antenna port group is used for transmitting any of the R2 first type wireless signals, and wherein the R1 and the R2 are used for determining the target antenna port group; the second given antenna port group, the second antenna port group, the third given antenna port group, and the third antenna port group each include a positive integer number of antenna ports.
20. The method of claim 12 or 13, further comprising:
-step c. receiving downlink information;
wherein the downlink information is used to determine at least one of the first time-frequency resource or the second time-frequency resource.
21. The method of claim 14, further comprising:
-step c. receiving downlink information;
wherein the downlink information is used to determine the Q candidate beamforming vectors.
22. The method of claim 15, further comprising:
-step c. receiving downlink information;
wherein the downlink information is used to determine the Q1 candidate antenna port groups.
23. User equipment configured for wireless communication, comprising:
the first processing module monitors a first type of wireless signals in a first time-frequency resource;
the second processing module is used for monitoring a target wireless signal in a second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, the monitoring action being associated with multiple antennas; the value of R is used for the monitoring behavior related to multiple antennas for the target wireless signal, the R being a non-negative integer.
24. The UE of claim 23, wherein the first processing module further transmits R second-type wireless signals; wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
25. The UE of claim 23 or 24, wherein a target beamforming vector is used for monitoring for the target wireless signal at the UE side, wherein the target beamforming vector is one of Q candidate beamforming vectors, wherein the value of R is used for determining the target beamforming vector among the Q candidate beamforming vectors, and wherein Q is a positive integer greater than 1.
26. The UE of claim 23 or 24, wherein the target wireless signal is transmitted by a target antenna port group, wherein the target antenna port group is one of Q1 candidate antenna port groups, wherein the value of R is used to determine the target antenna port group among the Q1 candidate antenna port groups, wherein Q1 is a positive integer greater than 1, and wherein the antenna port groups comprise a positive integer number of antenna ports.
27. The UE of claim 23 or 24, wherein a first beamforming vector is used for reception of the R first type radio signals at the UE side.
28. The UE of claim 23 or 24, wherein the UE assumes that any antenna port in a first given antenna port group and any antenna port in a first antenna port group are quasi co-located, the first given antenna port group being used for transmitting any one of the R first type wireless signals, and wherein the first given antenna port group and the first antenna port group respectively comprise a positive integer number of antenna ports.
29. The user equipment of claim 25 wherein a second beamforming vector is used for reception of R1 radio signals of the first type at the user equipment side, a third beamforming vector is used for reception of R2 radio signals of the first type at the user equipment side, the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, the R1 and the R2 are used to determine the target beamforming vector, and the R1 and the R2 are non-negative integers not greater than the R, respectively.
30. The user equipment of claim 26, wherein the user equipment assumes that any antenna port of a second given group of antenna ports and any antenna port of a second group of antenna ports are quasi co-located, wherein the user equipment assumes that any antenna port of a third given group of antenna ports and any antenna port of a third group of antenna ports are quasi co-located, wherein the second given group of antenna ports is used for transmitting any of the R1 radio signals of the first type, wherein the third given group of antenna ports is used for transmitting any of the R2 radio signals of the first type, and wherein the R1 and the R2 are used for determining the target group of antenna ports; the second given antenna port group, the second antenna port group, the third given antenna port group, and the third antenna port group each include a positive integer number of antenna ports.
31. The ue of claim 23 or 24, wherein the first processing module further receives downlink information; wherein the downlink information is used to determine at least one of the first time-frequency resource or the second time-frequency resource.
32. The ue of claim 25, wherein the first processing module further receives downlink information; wherein the downlink information is used to determine the Q candidate beamforming vectors.
33. The ue of claim 26, wherein the first processing module further receives downlink information; wherein the downlink information is used to determine the Q1 candidate antenna port groups.
34. A base station apparatus used for wireless communication, comprising:
the third processing module is used for sending the first type of wireless signals in the first time-frequency resource;
the first sending module is used for sending the target wireless signal in the second time-frequency resource;
wherein R of the first type of wireless signals are correctly decoded in the first time-frequency resource, and the transmitting action is related to multiple antennas; the value of R is used for the transmit behavior related to multiple antennas for the target wireless signal, the R being a non-negative integer.
35. The base station device of claim 34, wherein the third processing module further receives R second-type wireless signals; wherein the R first-type wireless signals and the R second-type wireless signals are in one-to-one correspondence, and the second-type wireless signals are used to determine that the corresponding first-type wireless signals are correctly decoded.
36. The base station device of claim 34 or 35, wherein a target beamforming vector is used for monitoring for the target wireless signal, wherein the target beamforming vector is one of Q candidate beamforming vectors, wherein the value of R is used for determining the target beamforming vector among the Q candidate beamforming vectors, wherein Q is a positive integer greater than 1.
37. The base station device of claim 34 or 35, wherein the target wireless signal is transmitted by a target antenna port group, wherein the target antenna port group is one of Q1 candidate antenna port groups, wherein the value of R is used to determine the target antenna port group among the Q1 candidate antenna port groups, wherein Q1 is a positive integer greater than 1, and wherein the antenna port groups comprise a positive integer number of antenna ports.
38. The base station device of claim 34 or 35, wherein a first beamforming vector is used for reception of said R radio signals of said first type.
39. The base station apparatus according to claim 34 or 35, wherein any antenna port of a first given antenna port group and any antenna port of a first antenna port group are quasi co-located, the first given antenna port group being used for transmitting any of the R first type wireless signals, the first given antenna port group and the first antenna port group respectively comprising a positive integer number of antenna ports.
40. The base station device of claim 36, wherein a second beamforming vector is used for reception of R1 radio signals of the first type, wherein a third beamforming vector is used for reception of R2 radio signals of the first type, wherein the R1 radio signals of the first type and the R2 radio signals of the first type are subsets of the R radio signals of the first type, wherein the R1 and the R2 are used for determining the target beamforming vector, and wherein the R1 and the R2 are non-negative integers not greater than the R.
41. The base station apparatus of claim 37, wherein any antenna port of a second given antenna port group and any antenna port of a second antenna port group are quasi co-located, wherein any antenna port of a third given antenna port group and any antenna port of a third antenna port group are quasi co-located, wherein said second given antenna port group is used to transmit any of R1 radio signals of said first type, wherein said third given antenna port group is used to transmit any of R2 radio signals of said first type, and wherein said R1 and said R2 are used to determine said target antenna port group; the second given antenna port group, the second antenna port group, the third given antenna port group, and the third antenna port group each include a positive integer number of antenna ports.
42. The base station device of claim 34 or 35, wherein the third processing module further receives downlink information; wherein the downlink information is used to determine at least one of the first time-frequency resource or the second time-frequency resource.
43. The base station device of claim 36, wherein the third processing module further receives downlink information; wherein the downlink information is used to determine the Q candidate beamforming vectors.
44. The base station device of claim 37, wherein the third processing module further receives downlink information; wherein the downlink information is used to determine the Q1 candidate antenna port groups.
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CN106330273A (en) * 2015-07-03 2017-01-11 电信科学技术研究院 Pre-coding method and device

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CN106330273A (en) * 2015-07-03 2017-01-11 电信科学技术研究院 Pre-coding method and device

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