WO2019090467A1 - 电子装置、无线通信方法以及计算机可读介质 - Google Patents
电子装置、无线通信方法以及计算机可读介质 Download PDFInfo
- Publication number
- WO2019090467A1 WO2019090467A1 PCT/CN2017/109691 CN2017109691W WO2019090467A1 WO 2019090467 A1 WO2019090467 A1 WO 2019090467A1 CN 2017109691 W CN2017109691 W CN 2017109691W WO 2019090467 A1 WO2019090467 A1 WO 2019090467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reference signal
- uplink reference
- base station
- uplink
- electronic device
- Prior art date
Links
Images
Classifications
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- 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
- H04B7/0413—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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback 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
- H04B7/06—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
- H04B7/06—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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
-
- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
Definitions
- the present disclosure generally relates to the field of wireless communications, and more particularly, to an electronic device and a wireless communication method for a user equipment side, an electronic device and a wireless communication method for a base station side, and a computer readable medium.
- 3GPP 3rd Generation Partnership Project
- Massive MIMO technology in which a large number of antenna elements (Antenna Elements) are set at a base station or user equipment (UE) to perform beaming. Shape to compensate for the fading loss of the high-band channel.
- TXRUs transceiver units
- antenna elements there is a trade-off between analog beamforming and digital beamforming. The more TXRUs, the stronger the digital beamforming capability that can be performed, but the weaker the RF beamforming capability; the more antenna arrays, the stronger the RF beamforming capability, but the corresponding the digital beamforming capability weak.
- an electronic device for a user equipment side includes processing circuitry.
- the processing circuit is configured to control to: transmit the non-precoded first uplink reference signal; receive feedback from the base station on the first uplink reference signal; and transmit the precoded second uplink reference signal based on the feedback.
- a method for wireless communication on a user equipment side including: transmitting a non-precoded first uplink reference signal; receiving a feedback of a base station on a first uplink reference signal; and transmitting based on the feedback The encoded second uplink reference signal.
- an electronic device for a base station side includes processing circuitry.
- the processing circuit is configured to control to: receive a non-precoded first uplink reference signal from the user equipment; send feedback to the user equipment based on the first uplink reference signal; and receive, from the user equipment, the precoded transmission based on the feedback Second uplink reference signal.
- a method for wireless communication on a base station side including: receiving a non-precoded first uplink reference signal from a user equipment; transmitting feedback to a user equipment based on the first uplink reference signal; and from the user The device receives the precoded second uplink reference signal transmitted based on the feedback.
- an electronic device for a user equipment side includes processing circuitry.
- the processing circuit is configured to control to: transmit the precoded first uplink reference signal with two or more uplink reference signal resources; receive feedback from the base station on the first uplink reference signal; and transmit the precode based on the feedback The second upstream reference signal.
- a method for wireless communication on a user equipment side including: transmitting a precoded first uplink reference signal by using two or more uplink reference signal resources; and receiving a base station to the first uplink reference Feedback of the signal; and transmitting the precoded second uplink reference signal based on the feedback.
- an electronic device for a base station side includes a processing circuit.
- the processing circuit is configured to control to: receive, from the user equipment, the precoded first uplink reference signal transmitted using the two or more uplink reference signal resources; and send feedback to the user equipment based on the first uplink reference signal; Receiving, by the user equipment, the precoded second uplink reference signal sent according to the feedback.
- a method for wireless communication for a base station side comprising: receiving, from a user equipment, a precoded first uplink reference signal transmitted using two or more uplink reference signal resources; An uplink reference signal, sending feedback to the user equipment; and receiving a precoded second uplink reference signal sent by the user equipment based on the feedback.
- the embodiment of the invention further includes a computer readable medium comprising executable instructions that, when executed by the information processing device, cause the information processing device to perform the method according to the above embodiments.
- Embodiments of the present invention can improve the accuracy of uplink channel state information (CSI) and reduce the system The overhead.
- CSI channel state information
- FIG. 1 is a block diagram showing a configuration example of an electronic device for a user device side according to an embodiment of the present invention
- FIG. 2 is a block diagram showing a configuration example of an electronic device for a user equipment side according to another embodiment of the present invention
- FIG. 3 is a flowchart showing an example of a procedure for a wireless communication method on a user equipment side according to an embodiment of the present invention
- FIG. 4 is a block diagram showing a configuration example of an electronic device for a base station side according to an embodiment of the present invention
- FIG. 5 is a flowchart showing an example of a procedure of a wireless communication method for a base station side according to an embodiment of the present invention
- FIG. 6 is a block diagram showing a configuration example of an electronic device for a user device side according to an embodiment of the present invention.
- FIG. 7 is a flowchart showing an example of a procedure for a wireless communication method on a user equipment side according to an embodiment of the present invention.
- FIG. 8 is a flowchart showing an example of a procedure of a wireless communication method for a base station side according to an embodiment of the present invention.
- FIG. 9 is a block diagram showing a configuration example of a wireless communication device for a user equipment side according to an embodiment of the present invention.
- FIG. 10 is a block diagram showing a configuration example of a wireless communication device for a base station side according to an embodiment of the present invention.
- SRS uplink sounding reference signal
- 12A through 12D are diagrams for explaining uplink mixed channel state information according to an exemplary embodiment
- FIG. 13 is a schematic diagram for explaining a power boosting manner according to an exemplary embodiment
- FIG. 14 is a schematic diagram for explaining a power boosting manner according to another exemplary embodiment.
- 15 is a schematic diagram for explaining user equipment transmitting an analog beam and digital precoding according to an exemplary embodiment
- 16 shows a schematic diagram of signaling interactions for uplink hybrid channel state information, according to an example embodiment
- 17A through 17D are schematic diagrams for explaining uplink mixed channel state information according to another exemplary embodiment
- 18 is a schematic diagram for explaining user equipment transmitting an analog beam and digital precoding according to another exemplary embodiment
- 19 is a schematic diagram for explaining a case where K uplink reference signal resources coexist in a physical resource block
- 20 shows a schematic diagram of signaling interactions for uplink hybrid channel state information in accordance with another example embodiment
- 21 is a block diagram showing an exemplary structure of a computer that implements the method and apparatus of the present disclosure
- 22 is a block diagram showing an example of a schematic configuration of a smartphone that can apply the technology of the present disclosure
- FIG. 23 is a block diagram showing an example of a schematic configuration of a gNB (base station in a 5G system) to which the technology of the present disclosure can be applied.
- a gNB base station in a 5G system
- the electronic device 100 for the user equipment side includes a processing circuit 110.
- the processing circuit 110 can be implemented, for example, as a specific chip, chipset, or central processing unit. Yuan (CPU) and so on.
- the processing circuit 110 includes a transmission control unit 111 and a reception control unit 113. It should be noted that although the transmission control unit 111 and the reception control unit 113 are shown in the form of functional blocks in the drawings, it should be understood that the functions of these units may also be implemented by the processing circuit 110 as a whole, and not necessarily This is accomplished by processing the discrete actual components in circuit 110. In addition, although the processing circuit 110 is illustrated in a block in the drawing, the electronic device 100 may include a plurality of processing circuits, and may distribute the functions of the transmission control unit 111 and the reception control unit 113 into a plurality of processing circuits so as to be composed of a plurality of Processing circuitry works in concert to perform these functions.
- the transmission control unit 111 is configured to perform control to transmit the non-precoded first uplink reference signal.
- the receiving control unit 113 is configured to perform control to receive feedback from the base station on the first uplink reference signal.
- the feedback of the base station to the first uplink reference signal may include a precoding matrix indication determined by the base station based on the first uplink reference signal.
- the transmission control unit 111 is further configured to perform control to transmit the precoded second uplink reference signal based on the feedback.
- the reception control unit 113 may be further configured to perform control to receive uplink channel state information determined by the base station based on the second uplink reference signal.
- the uplink channel state information may include, for example, an uplink precoding matrix index and a rank index.
- the transmission control unit 111 is configured to perform control to transmit the first uplink reference signal in a first period and to transmit a second uplink reference signal in a second period that is less than the first period.
- Type 1 SRS (the first type of uplink reference signal) corresponds to the first uplink reference signal
- Type 2 SRS (the second type of uplink reference signal) corresponds to the second uplink reference signal.
- Type 1 SRS is transmitted in a Type 1 SRS period, and in each Type 1 SRS period, a plurality of Type 2 SRSs may be transmitted in a Type 2 SRS period.
- the base station acquires the uplink CSI, it is necessary to establish an appropriate beam pair link (BPL) or a transmit and receive beam (Tx-Rx Beam) between the base station and the UE, that is, an uplink transmit beam and a base station on the user side.
- BPL beam pair link
- Tx-Rx Beam transmit and receive beam
- the base station can learn the appropriate receiving beam at the base station and the transmitting beam of the UE by measuring the uplink reference signal, and notify the UE through the downlink control channel.
- the transmit beam can be used to inform the UE of its transmit beam, for example, by a downlink control channel on another base station low-band carrier that is dual-connected before the downlink beam pair is established.
- the user can know the appropriate transmit beam at the base station and the receive beam of the UE by measuring the downlink reference signal, and notify the base station of the transmit beam through the uplink control channel, for example, by double-connecting before the uplink beam pair link is established.
- the uplink control channel on the low-band carrier of the other base station informs the base station of its transmit beam.
- the purpose of the process is to enable the UE to know which beam to use for uplink transmission and downlink reception, so that the base station knows which corresponding beam to use for uplink reception and downlink transmission.
- the electronic device 200 for the user equipment side includes a processing circuit 210.
- the processing circuit 210 includes a transmission control unit 211, a reception control unit 213, and a scan control unit 215.
- the scan control unit 215 is configured to control beam scanning, and the transmission control unit 211 is configured to perform control to transmit the first uplink reference signal on the beam determined by the beam scan.
- the UE sends an uplink reference signal and the base station measures the signal, which is performed on the determined BPL.
- the UL beam scan shown in Figure 11 corresponds to an uplink beam scanning process.
- the uplink beam scanning process may include, for example, the following steps: a base station (TRP, Transmission/Reception Point) performs measurement to determine an uplink transmit beam of the UE or an uplink receive beam of the base station; the base station performs measurement to select or change a receive beam of the base station; The measurement is performed to change the uplink transmit beam of the UE.
- TRP Transmission/Reception Point
- the transmission of the first uplink reference signal can be performed on a beam determined by the initial access phase (Initial Access).
- the beam for transmitting the first uplink reference signal may be a beam determined by performing uplink beam scanning by the UE, or may be a coarse beam determined by the UE in an initial access phase.
- coarse beam as used herein with respect to a beamlet means that the beam has a wide spatial directivity, but the beamforming gain is small.
- a transmit (Tx) beam of a UE and a receive (Rx) beam of a base station (TRP) are determined based on beam scanning.
- the UE transmits a non-precoded SRS signal (Class A (non-pre-coded SRS)) on the already selected beam, and the base station calculates a partial precoding matrix indication by measurement (partial The PMI, which is an index of the codeword W1 in the primary codebook representing the channel long-term characteristics, is fed back to the UE.
- Class A non-pre-coded SRS
- the UE performs precoding on the SRS and transmits the precoded SRS through the precoding matrix W1 indicated by the partial PMI fed back by the base station, and the base station performs representative on the UE by measuring the precoded SRS.
- the feedback of the codeword W2 in the secondary codebook of the channel narrowband short-term characteristic is such that it acquires the uplink channel CSI.
- the UE precodes the data symbols on the uplink data channel PUSCH (Physical Uplink Shared Channel) by the channel condition reflected by the uplink channel CSI to transmit the uplink data.
- the precoding of the data is performed, for example, by the precoding matrix W obtained by W1*W2.
- the UE may transmit a full-port Class A SRS on the beam, where the Class A SRS refers to a non-precoded SRS. That is to say, how many TXRUs the UE has or how many SRS ports are configured, how many ports of SRS are transmitted.
- the UE transmits all non-precoded SRS ports within the corresponding SRS resources.
- precoding refers to digital multi-antenna precoding.
- a Class B (Class B) CSI measurement can also be defined, which is based on a downlink precoded reference signal.
- first-class CSI long-period and wide-band channel CSI
- second-class CSI short-period and sub-band CSI
- the purpose of the first type of CSI is to collect the long-term characteristics of the channel, and to perform precoding for transmitting the reference signal of the second type of CSI.
- the second type of CSI is the short period and subband CSI, with the goal of obtaining the final CSI.
- the UE can transmit the concentrated power of each port of the SRS.
- the transmission control unit 111 may be configured to transmit the first uplink reference signal by means of Power Boosting.
- the power boosting method may include concentrating power on a resource unit (RE) carrying the first uplink reference signal within an Orthogonal Frequency Division Multiplexing (OFDM) symbol including the first uplink reference signal.
- RE resource unit
- OFDM Orthogonal Frequency Division Multiplexing
- the power boosting method may include transmitting only one uplink reference signal port within an orthogonal frequency division multiplexing symbol including the first uplink reference signal.
- the power boosting manner may further include configuring a zero power of the resource unit of the non-uplink reference signal in the orthogonal frequency division multiplexing symbol including the first uplink reference signal.
- FIG. 13 is a schematic diagram showing one example of performing a power boosting operation on an SRS port.
- the horizontal axis t represents time (i.e., OFDM symbol)
- the vertical axis f represents frequency (i.e., subcarrier).
- the UE concentrates all power on the RE carrying the SRS and zero power at the RE position of the non-SRS.
- the power boosting scheme can increase the transmission power of each SRS port by a factor of three.
- FIG. 14 is a schematic diagram showing an SRS Port Switch operation.
- the horizontal axis t represents time (i.e., OFDM symbol), and the vertical axis f represents frequency (i.e., subcarrier).
- the horizontal axis t represents time (i.e., OFDM symbol)
- the vertical axis f represents frequency (i.e., subcarrier).
- only one SRS port is transmitted in one OFDM symbol containing SRS, and another SRS port is transmitted in the next OFDM symbol containing SRS. To put it simply, each SRS port is transmitted in turn.
- One SRS port in an OFDM symbol can occupy more REs and transmit the uplink transmit power.
- the power boosting scheme can be used in combination in the scheme of port switching, that is, one OFDM symbol transmits only one SRS port, and the power of other REs in the symbol is set to 0, and the saved power can be used for the SRS port.
- the occupied RE is used. The purpose of this is to enable the non-precoded SRS signal transmitted by the UE to be received by the base station with sufficient power.
- the UE may need to report to the base station SRS port whether a power boosting scheme is used.
- Path Loss uplink path loss
- Rate Matching rate matching
- the transmission control unit 111 may be configured to perform control to report to the base station indication information as to whether to use the power boost mode.
- the SRS transmission period of Class A is long, and the purpose is to make the base station know the general situation of the UE uplink channel.
- the time relationship is as shown in FIG. 11, for example.
- the base station After measuring the Class A SRS, the base station can learn the precoding matrix that is suitable for the UE, and notify the UE by, for example, the uplink codeword W1.
- Precoding codeword for channel population W W1*W2, where the function of W2 is equivalent to selecting one codeword among the M secondary codewords included in W1.
- the UE can infer a more suitable precoding matrix through W1, and precodes the Class B SRS using the precoding matrix in a subsequent process, so that the SRS has stronger beamforming gain, that is, spatial directivity.
- the number of Class B SRS ports is also significantly reduced compared to the previous Class A SRS ports, thereby reducing the system's reference signal overhead.
- the UE transmits a non-precoded SRS
- the base station measures the SRS
- decomposes the entire channel that is,
- h ver and h hor represent the channels of the UE “vertical dimension” and “horizontal dimension” ports, respectively, and their Cronet's product represents the entire channel.
- the "vertical dimension” and the “horizontal dimension” are not necessarily perpendicular to the ground and the horizontal and the ground, but are intended to be Indicates that there are mutually perpendicular relationships between different SRS ports within one antenna panel of the UE.
- the base station needs to select one of the K vertical dimension precoding matrices included in the codebook to perform vertical dimension precoding on the SRS.
- the base station can calculate among them It is one of the kth vertical dimension precoding matrix, and the largest one can be selected as the precoding used next.
- the channel is decomposed into a vertical dimension and a horizontal dimension and fed back to the precoding matrix respectively, but the disclosure is not limited thereto, and the channel decomposition may not be performed, and the base station feeds back the indication of the precoding matrix representing the entire uplink channel to the UE. .
- the base station measures the precoded Class B SRS, calculates an uplink precoding matrix index (TPMI) and a rank index (TRI), and notifies the UE.
- the base station can inform the UE of the modulation coding scheme (MCS) level that should be used by UL Grant (uplink grant) signaling.
- MCS modulation coding scheme
- the base station may also notify the UE of a channel quality indicator (CQI).
- CQI channel quality indicator
- the UE after a relatively fine beam pair link is established between the base station and the UE, for example, by using a beam scanning process, if only the SRS of the Type 1 Class A is configured for the UE only through high layer signaling such as RRC signaling, Then the UE only sends the SRS of Class A and sends the data through the TPMI fed back by the base station.
- high layer signaling such as RRC signaling
- the UE performs a beam scanning process with the base station, and the base station measures the SRS reference signal, performs uplink transmission (UL Tx) beam selection, for example, selects the uplink transmit beam with the strongest received power (RSRP), and sends a message indicating the selected beam to the UE.
- UL Tx uplink transmission
- RSRP received power
- An SRS resource indication (Type I SRI). Since all uplink transmit beams transmit SRS carried by different resources, both the base station and the UE can identify the corresponding beams through the resource indication of the SRS.
- the UE transmits over all SRS ports, the base station measures all SRS ports and calculates a preferred UL precoder, and sends a partial PMI indicating the preferred UL Tx precoder (W1) to the UE.
- the UE pre-codes the SRS according to the UL Tx precoder W1 fed back by the base station and transmits the pre-coded SRS, and the base station performs measurement and calculates uplink channel state information (UL CSI) capable of indicating a finer precoding matrix W2, thereby The uplink TPMI, TRI, and/or CQI are fed back to the UE.
- UL CSI uplink channel state information
- the UE precodes the data symbols with the precoder W1*W2 indicated by the base station to perform PUSCH transmission, and the base station performs data detection and performs hybrid automatic repeat request (HARQ) feedback.
- HARQ hybrid automatic repeat request
- a wireless communication method for a user equipment side includes the following steps:
- embodiments of the present invention also include an electronic device for the base station side.
- an electronic device 400 for a base station side includes a processing circuit 410 including a reception control unit 411 and a transmission control unit 413.
- the receive control unit 411 is configured to control to receive the non-precoded first uplink reference signal from the user equipment.
- the transmission control unit 413 is configured to perform control to transmit feedback to the user equipment based on the first uplink reference signal.
- the receive control unit 411 is further configured to control to receive a precoded second uplink reference signal transmitted based on the feedback from the user equipment.
- FIG. 5 illustrates a method of wireless communication for a base station side, including the following steps, in accordance with one embodiment:
- S530 Receive, from the user equipment, a precoded second uplink reference signal that is sent according to the feedback.
- the electronic device 100 includes a processing circuit 110 including a transmission control unit 111 and a reception control unit 113.
- the transmission control unit 111 is configured to perform control to transmit the precoded first uplink reference signal using two or more uplink reference signal resources.
- the receiving control unit 113 is configured to perform control to receive feedback from the base station on the first uplink reference signal.
- the feedback may include indication information of the reference signal resource selected by the base station by measuring the two or more uplink reference signal resources.
- the feedback may include a channel quality indication by the base station for each precoded uplink reference signal resource.
- the transmission control unit 111 is further configured to perform control to transmit the precoded second uplink reference signal based on the feedback.
- the transmission control unit 111 may also be configured to perform control to transmit the first uplink reference signal in a first cycle. And transmitting the second uplink reference signal in a second period that is less than the first period.
- the reception control unit 113 may be further configured to perform control to receive uplink channel state information determined by the base station based on the second uplink reference signal.
- the uplink channel state information may include an uplink precoding matrix index.
- the UE may perform beam scanning in a manner similar to the previous embodiment, the base station notifying the UE of its uplink transmit beam, for example by feedback SRI (SRS Resource Indication).
- SRI SRS Resource Indication
- the UE can then transmit K>1 Class B SRS resources by precoding within the selected analog beam range.
- FIG. 6 shows a configuration example of an electronic device 600 for a user device side according to another embodiment.
- the electronic device 600 includes a processing circuit 610 including a determining unit 615, a transmitting control unit 611, and a receiving control unit 613.
- the configurations of the transmission control unit 611 and the reception control unit 613 are similar to the above-described transmission control unit and reception control unit.
- the determining unit 615 is configured to determine the number of uplink reference signal resources for the first uplink reference signal based on the spatial coverage of the beam, which beam may be determined by beam scanning or determined during the initial access phase.
- the transmit beam of the UE and the receive beam of the base station are first determined based on beam scanning.
- the UE transmits K separately precoded SRSs using K resources within the determined analog beam range (eg, transmitting precoded SRS ports 1 to 4 on the first SRS resource, second.
- the SRS resources are transmitted on the pre-coded SRS ports 5-8, and so on.
- the base station measures K SRS resources, for example, selects one of the pre-coded resources with the strongest received power based on the RSRP and notifies the UE through the SRI, or the base station can Direct feedback to each precoded SRS resource The corresponding CQI is given to the UE for the UE to select.
- the UE collects uplink CSI through a precoding matrix corresponding to the selected precoding resource, for example, including TPMI and TRI.
- the UE determines a precoding matrix for data transmission by using the collected uplink CSI to transmit uplink data on the uplink data channel PUSCH.
- FIG. 19 shows a schematic diagram of coexistence of K SRS resources in a physical resource block (PRB).
- PRB physical resource block
- the horizontal axis t represents time (i.e., OFDM symbol)
- the vertical axis f represents frequency (i.e., subcarrier).
- the SRS transmission period of K>1 Class B is long, and the purpose is to make the base station know the general situation of the uplink channel of the UE, that is, which reference signal under the precoder is more suitable for acquiring CSI.
- the base station After measuring the K>1 Class B SRS, the base station can obtain, for example, the RSRP of each SRS resource, and can use the precoder of the SRS carried by the largest SRS resource of the RSRP as the selected precoder, and can notify by SRI.
- UE The UE identifies the precoder indicated by the base station by the SRI and precodes the SRS and performs denser transmission than the K>1 Class B SRS, so that the base station measures the precoded SRS and obtains uplink CSI.
- the base station can notify the UE of the uplink transmit beam through the SRI, and the base station can also notify the UE of the alternative precoding by the SRI. Accordingly, the following example approaches can be used to distinguish the use of SRI.
- the base station may notify the UE of the SRS resource associated with the SRI in advance, and the base station may configure the SRS resource for the UE by using the high layer signaling, such as the RRC. For example, some resources are only used for uplink beam scanning, and some resources are only used for uplink prediction.
- the transmission of the SRS is encoded, so that the purpose of the SRS resource corresponding to the SRI can be clarified, that is, used for beam scanning or for uplink CSI acquisition.
- the base station can notify the UE of the use of the SRI by, for example, using 1 bit of indication information along with the SRI. For example, if bit "0" indicates that the SRS resource indicated by the SRI is an SRS for beam scanning; bit "1" represents that the SRS resource indicated by the SRI is an SRS for CSI acquisition.
- the receiving control unit 113 may be configured to perform control to receive an uplink reference signal resource notified by the base station, in which a part of resources may be used only for uplink beam scanning, and a part of resources may only be used. Used to send an uplink reference signal.
- the uplink reference signal resource indication may be determined according to the indication bit sent by the base station along with the uplink reference signal resource indication for the resource for uplink beam scanning or the resource for transmitting the uplink reference signal.
- the beam pair link determined by the initial access phase can be communicated only, and the UE can use the precoding SRS technique instead of the fine beam pair link.
- the transmission control unit 111 may be configured to control to transmit the first uplink reference signal through the beam pair link determined by the initial access phase.
- FIG. 20 shows an example of an acquisition process of channel state information.
- the UE transmits K precoded SRS resources, and the base station measures K SRS resources to determine the beam with the strongest gain. And indicate the corresponding type II SRI to the UE.
- FIG. 7 shows an example of a procedure for a wireless communication method on the user equipment side according to an embodiment of the second aspect of the present invention, the method comprising the following steps:
- the electronic device 400 includes a processing circuit 410 including a reception control unit 411 and a transmission control unit 413.
- the receive control unit 411 is configured to control to receive from the user equipment a precoded first uplink reference signal transmitted using two or more uplink reference signal resources.
- the transmission control unit 413 is configured to perform control to transmit feedback to the user equipment based on the first uplink reference signal.
- the receiving control unit 411 is further configured to control to receive the precoded second uplink reference signal transmitted by the user equipment based on the feedback.
- FIG. 8 shows wireless communication for a base station side according to an embodiment of the second aspect of the present invention.
- An example of a process of a method that includes the following steps:
- S810 Receive, from a user equipment, a precoded first uplink reference signal that is sent by using two or more uplink reference signal resources.
- a wireless communication device for a user equipment side includes: a transmission control device 910 configured to transmit a non-precoded first uplink reference signal; and a reception control device 920 configured to Receiving feedback from the base station on the first uplink reference signal; the transmission control device 910 is further configured to transmit the precoded second uplink reference signal based on the feedback.
- a wireless communication device for a user equipment side includes: a transmission control device 910 configured to transmit a precoded first uplink reference using two or more uplink reference signal resources And a receive control device 920 configured to receive feedback from the base station on the first uplink reference signal; the transmit control device 910 is further configured to transmit the precoded second uplink reference signal based on the feedback.
- a wireless communication device for a base station side includes: a receiving control device 1010 configured to receive a non-precoded first uplink reference signal from a user equipment; and a transmission control device 1020 The method is configured to send feedback to the user equipment based on the first uplink reference signal; the receiving control apparatus 1010 is further configured to receive, from the user equipment, the precoded second uplink reference signal transmitted based on the feedback.
- a wireless communication device for a base station side includes: a receiving control device 1010 configured to receive, from a user equipment, precoded transmissions using two or more uplink reference signal resources a first uplink reference signal; and a transmission control device 1020 configured to send feedback to the user equipment based on the first uplink reference signal; the reception control device 1010 is further configured to receive the precoded second transmitted by the user equipment based on the feedback Uplink reference signal.
- embodiments of the present invention also include a computer readable medium including executable instructions that, when executed by an information processing apparatus, cause an information processing apparatus to perform the method according to the above embodiments.
- the various steps of the above methods, as well as the various constituent modules and/or units of the above-described apparatus may be implemented as software, firmware, hardware or a combination thereof.
- a program constituting software for implementing the above method may be installed from a storage medium or a network to a computer having a dedicated hardware structure (for example, the general-purpose computer 2100 shown in FIG. 21), which is installed.
- a dedicated hardware structure for example, the general-purpose computer 2100 shown in FIG. 21
- a central processing unit (i.e., CPU) 2101 executes various processes in accordance with a program stored in a read only memory (ROM) 2102 or a program loaded from a storage portion 2108 to a random access memory (RAM) 2103.
- ROM read only memory
- RAM random access memory
- data required when the CPU 2101 executes various processes and the like is also stored as needed.
- the CPU 2101, the ROM 2102, and the RAM 2103 are linked to each other via a bus 2104.
- Input/output interface 2105 is also linked to bus 2104.
- the following components are linked to an input/output interface 2105: an input portion 2106 (including a keyboard, a mouse, etc.), an output portion 2107 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.)
- the storage portion 2108 (including a hard disk or the like), the communication portion 2109 (including a network interface card such as a LAN card, a modem, etc.).
- the communication section 2109 performs communication processing via a network such as the Internet.
- the driver 2110 can also be linked to the input/output interface 2105 as needed.
- a removable medium 2111 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 2110 as needed, so that the computer program read therefrom is installed into the storage portion 2108 as needed.
- a program constituting the software is installed from a network such as the Internet or a storage medium such as the detachable medium 2111.
- such a storage medium is not limited to the removable medium 2111 shown in FIG. 21 in which a program is stored and distributed separately from the device to provide a program to the user.
- Examples of the detachable medium 2111 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered trademark) )) and semiconductor memory.
- the storage medium may be the ROM 2102, a hard disk included in the storage portion 2108, and the like, in which programs are stored, and distributed to the user together with the device containing them.
- Embodiments of the present invention also relate to a program product for storing a machine readable instruction code.
- the instruction code is read and executed by a machine, the above-described method according to an embodiment of the present invention can be performed.
- a storage medium for carrying a program product storing the above-described storage machine readable instruction code is also included in the disclosure of the present invention.
- the storage medium includes, but is not limited to, a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.
- Embodiments of the present application also relate to the following electronic devices.
- the electronic device can be implemented as any type of evolved Node B (eNB), such as a macro eNB and a small eNB.
- the small eNB may be an eNB covering a cell smaller than the macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
- the electronic device can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
- BTS base transceiver station
- the electronic device can be implemented It is a gNB in a 5G system.
- the electronic device can include: a body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless headends (RRHs) disposed at a different location than the body.
- a body also referred to as a base station device
- RRHs remote wireless headends
- various types of terminals which will be described below, can operate as a base station by performing base station functions temporarily or semi-persistently.
- the electronic device can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/encrypted dog type mobile router, and a digital camera device) or Vehicle terminal (such as car navigation equipment).
- the electronic device may be a wireless communication module (such as an integrated circuit module including a single or a plurality of wafers) mounted on each of the above terminals.
- FIG. 22 is a block diagram showing an example of a schematic configuration of a smartphone 2500 to which the technology of the present disclosure can be applied.
- the smart phone 2500 includes a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, an imaging device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, and one or more An antenna switch 2515, one or more antennas 2516, a bus 2517, a battery 2518, and an auxiliary controller 2519.
- the processor 2501 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and the other layers of the smartphone 2500.
- the memory 2502 includes a RAM and a ROM, and stores data and programs executed by the processor 2501.
- the storage device 2503 may include a storage medium such as a semiconductor memory and a hard disk.
- the external connection interface 2504 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 2500.
- USB universal serial bus
- the image pickup device 2506 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
- Sensor 2507 can include a set of sensors, such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
- the microphone 2508 converts the sound input to the smartphone 2500 into an audio signal.
- the input device 2509 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 2510, and receives an operation or information input from a user.
- the display device 2510 includes screens such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 2500.
- the speaker 2511 converts the audio signal output from the smartphone 2500 into a sound.
- the wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
- Wireless communication interface 2512 may generally include, for example, a baseband (BB) processor 2513 and radio frequency (RF) circuitry 2514.
- the BB processor 2513 can perform, for example, encoding/decoding, Modulation/demodulation and multiplexing/demultiplexing, and performing various types of signal processing for wireless communication.
- the RF circuit 2514 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 2516.
- the wireless communication interface 2512 can be a chip module on which the BB processor 2513 and the RF circuit 2514 are integrated. As shown in FIG.
- the wireless communication interface 2512 can include a plurality of BB processors 2513 and a plurality of RF circuits 2514.
- FIG. 22 illustrates an example in which the wireless communication interface 2512 includes a plurality of BB processors 2513 and a plurality of RF circuits 2514, the wireless communication interface 2512 may also include a single BB processor 2513 or a single RF circuit 2514.
- wireless communication interface 2512 can support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
- the wireless communication interface 2512 can include a BB processor 2513 and RF circuitry 2514 for each wireless communication scheme.
- Each of the antenna switches 2515 switches the connection destination of the antenna 2516 between a plurality of circuits included in the wireless communication interface 2512, such as circuits for different wireless communication schemes.
- Each of the antennas 2516 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 2512 to transmit and receive wireless signals.
- smart phone 2500 can include multiple antennas 2516.
- FIG. 22 shows an example in which the smartphone 2500 includes a plurality of antennas 2516, the smartphone 2500 may also include a single antenna 2516.
- smart phone 2500 can include an antenna 2516 for each wireless communication scheme.
- the antenna switch 2515 can be omitted from the configuration of the smartphone 2500.
- the bus 2517 has a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, an imaging device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, and an auxiliary controller 2519. connection.
- Battery 2518 provides power to various blocks of smart phone 2500 shown in FIG. 22 via feeders, which are partially shown as dashed lines in the figure.
- the secondary controller 2519 operates the minimum required function of the smartphone 2500, for example, in a sleep mode.
- the transceiver of the wireless communication device on the user equipment side can be implemented by the wireless communication interface 2512.
- the processing circuitry of the user device side or the processing circuitry of the wireless communication device and/or at least a portion of the functions of the various units in accordance with embodiments of the present invention may also be implemented by the processor 2501 or the secondary controller 2519.
- the power consumption of the battery 2518 can be reduced by performing a portion of the functions of the processor 2501 by the auxiliary controller 2519. Consumption.
- the processor 2501 or the auxiliary controller 2519 may execute the processing circuit of the electronic device or the wireless communication device on the user equipment side and/or the respective units of the user equipment side according to the embodiment of the present invention by executing the program stored in the memory 2502 or the storage device 2503. At least part of the function.
- the gNB 2300 includes a plurality of antennas 2310 and base station devices 2320.
- the base station device 2320 and each antenna 2310 may be connected to each other via a radio frequency (RF) cable.
- RF radio frequency
- Each of the antennas 2310 includes a single or multiple antenna elements, such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna, and is used by the base station device 2320 to transmit and receive wireless signals.
- the gNB 2300 may include a plurality of antennas 2310.
- multiple antennas 2310 can be compatible with multiple frequency bands used by gNB 2300.
- the base station device 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.
- the controller 2321 can be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 2320. For example, controller 2321 generates data packets based on data in signals processed by wireless communication interface 2325 and delivers the generated packets via network interface 2323. The controller 2321 can bundle data from a plurality of baseband processors to generate bundled packets and deliver the generated bundled packets. The controller 2321 may have a logical function that performs control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby gNB or core network nodes.
- the memory 2322 includes a RAM and a ROM, and stores programs executed by the controller 2321 and various types of control data such as a terminal list, transmission power data, and scheduling data.
- the network interface 2323 is a communication interface for connecting the base station device 2320 to the core network 2324. Controller 2321 can communicate with a core network node or another gNB via network interface 2323. In this case, the gNB 2300 and the core network node or other gNBs may be connected to each other through a logical interface such as an NG interface and an Xn interface.
- the network interface 2323 can also be a wired communication interface or a wireless communication interface for wireless backhaul lines. If the network interface 2323 is a wireless communication interface, the network interface 2323 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 2325.
- the wireless communication interface 2325 supports any cellular communication schemes, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connectivity to terminals located in cells of the gNB 2300 via the antenna 2310.
- Wireless communication interface 2325 may typically include, for example, BB processor 2326 and RF power Road 2327.
- the BB processor 2326 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs layers (eg, L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) Various types of signal processing.
- BB processor 2326 may have some or all of the above described logic functions.
- the BB processor 2326 can be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program.
- the update program can cause the functionality of the BB processor 2326 to change.
- the module can be a card or blade that is inserted into the slot of the base station device 2320. Alternatively, the module can also be a chip mounted on a card or blade.
- the RF circuit 2327 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 2310.
- the wireless communication interface 2325 can include a plurality of BB processors 2326.
- multiple BB processors 2326 can be compatible with multiple frequency bands used by gNB 2300.
- the wireless communication interface 2325 can include a plurality of RF circuits 2327.
- multiple RF circuits 2327 can be compatible with multiple antenna elements.
- FIG. 23 shows an example in which the wireless communication interface 2325 includes a plurality of BB processors 2326 and a plurality of RF circuits 2327, the wireless communication interface 2325 may also include a single BB processor 2326 or a single RF circuit 2327.
- the transceiver of the wireless communication device on the base station side can be implemented by the wireless communication interface 2325.
- the processing circuitry of the base station side or the processing circuitry of the wireless communication device and/or at least a portion of the functions of the various units may also be implemented by the controller 2321 in accordance with an embodiment of the present invention.
- the controller 2321 may perform at least a part of the functions of the processing circuit and/or each unit of the electronic device or the wireless communication device on the base station side according to an embodiment of the present invention by executing a program stored in the memory 2322.
- the method of the present invention is not limited to being performed in the chronological order described in the specification, and may be performed in other chronological order, in parallel, or independently. Therefore, the order of execution of the methods described in the present specification does not limit the technical scope of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
- User Interface Of Digital Computer (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (27)
- 一种用于用户设备侧的电子装置,其包括处理电路,所述处理电路被配置为进行控制以:发送非预编码的第一上行参考信号;接收基站对所述第一上行参考信号的反馈;以及基于所述反馈,发送经预编码的第二上行参考信号。
- 根据权利要求1所述的电子装置,其中,所述处理电路被配置为进行控制来以第一周期发送所述第一上行参考信号,并且以小于所述第一周期的第二周期发送所述第二上行参考信号。
- 根据权利要求1所述的电子装置,其中,所述处理电路还被配置为控制进行波束扫描,并且在通过所述波束扫描确定的波束上进行所述第一上行参考信号的发送。
- 根据权利要求1所述的电子装置,其中,所述处理电路被配置为进行控制以在初始接入阶段确定的波束上进行所述第一上行参考信号的发送。
- 根据权利要求1所述的电子装置,其中,所述反馈包括所述基站基于所述第一上行参考信号确定的预编码矩阵指示。
- 根据权利要求1所述的电子装置,其中,所述处理电路还被配置为进行控制以接收所述基站基于所述第二上行参考信号确定的上行信道状态信息。
- 根据权利要求6所述的电子装置,其中,所述上行信道状态信息包括上行预编码矩阵索引和秩索引。
- 根据权利要求1所述的电子装置,其中,所述处理电路被配置为通过功率提升方式发送所述第一上行参考信号,所述功率提升方式包括:在含有所述第一上行参考信号的正交频分多路复用符号内,将功率集中到承载所述第一上行参考信号的资源单元上。
- 根据权利要求1所述的电子装置,其中,所述处理电路被配置为通过功率提升方式发送所述第一上行参考信号,所述功率提升方式包括:在一个含有所述第一上行参考信号的正交频分多路复用符号内仅发送一个上行参考信号端口。
- 根据权利要求8或权利要求9所述的电子装置,其中,所述功率提升方式还包括:在含有所述第一上行参考信号的正交频分多路复用符号内非上行参考信号的资源单元配置零功率。
- 根据权利要求8或权利要求9所述的电子装置,其中,所述处理电路被配置为进行控制以向所述基站上报关于是否使用所述功率提升方式的指示信息。
- 一种用于用户设备侧的无线通信方法,包括:发送非预编码的第一上行参考信号;接收基站对所述第一上行参考信号的反馈;以及基于所述反馈,发送经预编码的第二上行参考信号。
- 一种用于基站侧的电子装置,其包括处理电路,所述处理电路被配置为进行控制以:从用户设备接收非预编码的第一上行参考信号;基于所述第一上行参考信号,向所述用户设备发送反馈;以及从所述用户设备接收基于所述反馈发送的经预编码的第二上行参考信号。
- 一种用于基站侧的无线通信方法,包括:从用户设备接收非预编码的第一上行参考信号;基于所述第一上行参考信号,向所述用户设备发送反馈;以及从所述用户设备接收基于所述反馈发送的经预编码的第二上行参考信号。
- 一种用于用户设备侧的电子装置,其包括处理电路,所述处理电路被配置为进行控制以:利用两个或更多个上行参考信号资源发送经预编码的第一上行参考信号;接收基站对所述第一上行参考信号的反馈;以及基于所述反馈,发送经预编码的第二上行参考信号。
- 根据权利要求15所述的电子装置,其中,所述处理电路被配置为进行控制来以第一周期发送所述第一上行参考信号,并且以小于所述第一周期的第二周期发送所述第二上行参考信号。
- 根据权利要求15所述的电子装置,其中,所述处理电路还被配置为根据波束的空间覆盖范围确定用于所述第一上行参考信号的上行参考信号资源的数量,其中所述波束是通过波束扫描确定的或者是在初始接入阶段确定的。
- 根据权利要求15所述的电子装置,其中,所述反馈包括:所述基站通过测量所述两个或更多个上行参考信号资源而选择的参 考信号资源的指示信息;或者所述基站对于每个预编码的上行参考信号资源的信道质量指示。
- 根据权利要求15所述的电子装置,其中,所述处理电路被配置为进行控制以接收所述基站通知的上行参考信号资源,其中,一部分资源仅用于上行波束扫描,一部分资源仅用于发送上行参考信号。
- 根据权利要求15所述的电子装置,其中,所述处理电路被配置为根据所述基站伴随上行参考信号资源指示发送的指示位来确定所述上行参考信号资源指示针对的是用于上行波束扫描的资源还是用于发送上行参考信号的资源。
- 根据权利要求15所述的电子装置,其中,所述处理电路被配置为进行控制以通过初始接入阶段确定的波束对链接来发送所述第一上行参考信号。
- 根据权利要求15所述的电子装置,其中,所述处理电路还被配置为进行控制以接收所述基站基于所述第二上行参考信号确定的上行信道状态信息。
- 根据权利要求22所述的电子装置,其中,所述上行信道状态信息包括上行预编码矩阵索引。
- 一种用于用户设备侧的无线通信方法,包括:利用两个或更多个上行参考信号资源发送经预编码的第一上行参考信号;接收基站对所述第一上行参考信号的反馈;以及基于所述反馈,发送经预编码的第二上行参考信号。
- 一种用于基站侧的电子装置,其包括处理电路,所述处理电路被配置为进行控制以:从用户设备接收利用两个或更多个上行参考信号资源发送的经预编码的第一上行参考信号;基于所述第一上行参考信号,向所述用户设备发送反馈;以及接收所述用户设备基于所述反馈发送的经预编码的第二上行参考信号。
- 一种用于基站侧的无线通信方法,包括:从用户设备接收利用两个或更多个上行参考信号资源发送的经预编码的第一上行参考信号;基于所述第一上行参考信号,向所述用户设备发送反馈;以及接收所述用户设备基于所述反馈发送的经预编码的第二上行参考信号。
- 一种计算机可读介质,其包括可执行指令,当所述可执行指令被信息处理设备执行时,使得所述信息处理设备执行根据权利要求12、14、24或26所述的方法。
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17931537.9A EP3709526A1 (en) | 2017-11-07 | 2017-11-07 | Electronic device, wireless communication method, and computer-readable medium |
PCT/CN2017/109691 WO2019090467A1 (zh) | 2017-11-07 | 2017-11-07 | 电子装置、无线通信方法以及计算机可读介质 |
CN202211174205.2A CN115459822A (zh) | 2017-11-07 | 2017-11-07 | 电子装置、无线通信方法以及计算机可读介质 |
RU2020112381A RU2748615C1 (ru) | 2017-11-07 | 2017-11-07 | Электронное устройство, способ беспроводной связи и машиночитаемый носитель информации |
CN201780093093.9A CN110870212B (zh) | 2017-11-07 | 2017-11-07 | 电子装置、无线通信方法以及计算机可读介质 |
JP2020510525A JP7268676B2 (ja) | 2017-11-07 | 2017-11-07 | 電子装置 |
MX2020002170A MX2020002170A (es) | 2017-11-07 | 2017-11-07 | Dispositivo electronico, metodo de comunicacion inalambrica, y medio legible por computadora. |
KR1020207007801A KR102524879B1 (ko) | 2017-11-07 | 2017-11-07 | 전자 디바이스, 무선 통신 방법, 및 컴퓨터 판독가능 매체 |
US16/638,154 US11451352B2 (en) | 2017-11-07 | 2017-11-07 | Electronic device, wireless communication method, and computer-readable medium |
AU2017438883A AU2017438883A1 (en) | 2017-11-07 | 2017-11-07 | Electronic device, wireless communication method, and computer-readable medium |
US17/868,782 US11641257B2 (en) | 2017-11-07 | 2022-07-20 | Electronic device, wireless communication method, and computer-readable medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2017/109691 WO2019090467A1 (zh) | 2017-11-07 | 2017-11-07 | 电子装置、无线通信方法以及计算机可读介质 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/638,154 A-371-Of-International US11451352B2 (en) | 2017-11-07 | 2017-11-07 | Electronic device, wireless communication method, and computer-readable medium |
US17/868,782 Continuation US11641257B2 (en) | 2017-11-07 | 2022-07-20 | Electronic device, wireless communication method, and computer-readable medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019090467A1 true WO2019090467A1 (zh) | 2019-05-16 |
Family
ID=66438752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/109691 WO2019090467A1 (zh) | 2017-11-07 | 2017-11-07 | 电子装置、无线通信方法以及计算机可读介质 |
Country Status (9)
Country | Link |
---|---|
US (2) | US11451352B2 (zh) |
EP (1) | EP3709526A1 (zh) |
JP (1) | JP7268676B2 (zh) |
KR (1) | KR102524879B1 (zh) |
CN (2) | CN110870212B (zh) |
AU (1) | AU2017438883A1 (zh) |
MX (1) | MX2020002170A (zh) |
RU (1) | RU2748615C1 (zh) |
WO (1) | WO2019090467A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3895333A1 (en) | 2018-12-11 | 2021-10-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for configuring beamforming operations in a wireless communication network |
WO2020119892A1 (en) | 2018-12-11 | 2020-06-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for beamforming control in a wireless communication network |
US11444740B2 (en) * | 2019-07-09 | 2022-09-13 | Qualcomm Incorporated | Event-triggered reference signal transmission for carrier selection |
US11696312B2 (en) * | 2020-11-24 | 2023-07-04 | Qualcomm Incorporated | Frequency and state dependent user equipment beam patterns |
US20230291612A1 (en) * | 2022-03-09 | 2023-09-14 | Qualcomm Incorporated | Channel state feedback using demodulation reference signals |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102064924A (zh) * | 2009-11-16 | 2011-05-18 | 株式会社Ntt都科摩 | 一种上行数据重传时的中继方法及移动通信*** |
CN103312393A (zh) * | 2012-03-14 | 2013-09-18 | 中兴通讯股份有限公司 | 一种上行协作多点方法及*** |
CN106160952A (zh) * | 2015-04-17 | 2016-11-23 | ***通信集团公司 | 一种信道信息反馈方法及装置 |
CN106301490A (zh) * | 2015-05-15 | 2017-01-04 | 索尼公司 | 无线通信***以及无线通信***中的装置和方法 |
CN106941368A (zh) * | 2016-01-04 | 2017-07-11 | ***通信集团公司 | 一种数据传输方法及基站 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101166052B (zh) * | 2006-10-19 | 2012-05-23 | 株式会社Ntt都科摩 | 一种多输入多输出***的预编码方法及使用该方法的设备 |
US8369450B2 (en) * | 2007-08-07 | 2013-02-05 | Samsung Electronics Co., Ltd. | Pilot boosting and traffic to pilot ratio estimation in a wireless communication system |
EP2430769B1 (en) * | 2009-03-16 | 2017-09-13 | BlackBerry Limited | Transmission using common and dedicated pilots |
US8693429B2 (en) | 2009-03-31 | 2014-04-08 | Qualcomm Incorporated | Methods and apparatus for generation and use of reference signals in a communications system |
EP2486710B1 (en) * | 2009-10-05 | 2024-06-05 | Nokia Solutions and Networks Oy | Uplink transmission mode switching in single user multiple- input communication |
US8526519B2 (en) * | 2009-12-14 | 2013-09-03 | Texas Instruments Incorporated | Multi-rank precoding matrix indicator (PMI) feedback in a multiple-input multiple-output (MIMO) system |
WO2011131127A1 (zh) * | 2010-04-20 | 2011-10-27 | ***通信集团公司 | 发送与接收信道探测参考信号的方法、装置与*** |
CN112448747A (zh) * | 2014-09-12 | 2021-03-05 | 索尼公司 | 无线通信设备和无线通信方法 |
US10826661B2 (en) * | 2015-08-10 | 2020-11-03 | Apple Inc. | Enhanced sounding reference signaling for uplink beam tracking |
CN108289330B (zh) * | 2017-01-09 | 2022-12-02 | 中兴通讯股份有限公司 | 上行参考信号信息的指示方法及装置 |
US11444674B2 (en) * | 2017-08-11 | 2022-09-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Precoding in a multi-user multiple-input multiple-output wireless communication system |
-
2017
- 2017-11-07 JP JP2020510525A patent/JP7268676B2/ja active Active
- 2017-11-07 RU RU2020112381A patent/RU2748615C1/ru active
- 2017-11-07 CN CN201780093093.9A patent/CN110870212B/zh active Active
- 2017-11-07 MX MX2020002170A patent/MX2020002170A/es unknown
- 2017-11-07 EP EP17931537.9A patent/EP3709526A1/en active Pending
- 2017-11-07 AU AU2017438883A patent/AU2017438883A1/en not_active Abandoned
- 2017-11-07 US US16/638,154 patent/US11451352B2/en active Active
- 2017-11-07 KR KR1020207007801A patent/KR102524879B1/ko active IP Right Grant
- 2017-11-07 WO PCT/CN2017/109691 patent/WO2019090467A1/zh unknown
- 2017-11-07 CN CN202211174205.2A patent/CN115459822A/zh active Pending
-
2022
- 2022-07-20 US US17/868,782 patent/US11641257B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102064924A (zh) * | 2009-11-16 | 2011-05-18 | 株式会社Ntt都科摩 | 一种上行数据重传时的中继方法及移动通信*** |
CN103312393A (zh) * | 2012-03-14 | 2013-09-18 | 中兴通讯股份有限公司 | 一种上行协作多点方法及*** |
CN106160952A (zh) * | 2015-04-17 | 2016-11-23 | ***通信集团公司 | 一种信道信息反馈方法及装置 |
CN106301490A (zh) * | 2015-05-15 | 2017-01-04 | 索尼公司 | 无线通信***以及无线通信***中的装置和方法 |
CN106941368A (zh) * | 2016-01-04 | 2017-07-11 | ***通信集团公司 | 一种数据传输方法及基站 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3709526A4 * |
Also Published As
Publication number | Publication date |
---|---|
US11451352B2 (en) | 2022-09-20 |
AU2017438883A1 (en) | 2020-04-16 |
EP3709526A4 (en) | 2020-09-16 |
RU2748615C1 (ru) | 2021-05-28 |
KR20200080222A (ko) | 2020-07-06 |
JP7268676B2 (ja) | 2023-05-08 |
US11641257B2 (en) | 2023-05-02 |
US20220376862A1 (en) | 2022-11-24 |
MX2020002170A (es) | 2020-07-14 |
EP3709526A1 (en) | 2020-09-16 |
JP2021510940A (ja) | 2021-04-30 |
CN110870212A (zh) | 2020-03-06 |
CN115459822A (zh) | 2022-12-09 |
US20200228268A1 (en) | 2020-07-16 |
CN110870212B (zh) | 2022-10-14 |
KR102524879B1 (ko) | 2023-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10630363B2 (en) | Electronic device in wireless communication system, and wireless communication method | |
CN106470096B (zh) | 用于无线通信的基站侧和用户设备侧的装置及方法 | |
WO2019090467A1 (zh) | 电子装置、无线通信方法以及计算机可读介质 | |
WO2019029515A1 (zh) | 用于无线通信的电子设备、方法和介质 | |
WO2017076250A1 (zh) | 无线通信设备和无线通信方法 | |
US10194333B2 (en) | Terminal apparatus, base station, and program | |
CA2981197A1 (en) | Wireless communication system, and device and method in wireless communication system | |
EP4114083A1 (en) | Electronic device and method for wireless communication, and computer-readable storage medium | |
US20230102698A1 (en) | Network device, user equipment, wireless communication method and storage medium | |
CN106416346B (zh) | 设备和方法 | |
WO2018205972A1 (zh) | 电子设备和通信方法 | |
CN111656845A (zh) | 用于无线通信的电子设备和方法、计算机可读存储介质 | |
CN112514433B (zh) | 通信设备、通信控制方法和记录介质 | |
WO2021088797A1 (zh) | 网络侧设备、终端侧设备、通信方法、通信装置以及介质 | |
US20220094402A1 (en) | Electronic apparatus, wireless communication method and computer-readable medium | |
CN108111210B (zh) | 无线通信方法和无线通信设备 | |
EP3280071A1 (en) | Wireless communication device and method | |
WO2016121252A1 (ja) | 装置及び方法 | |
US20220338023A1 (en) | Electronic device, wireless communication method, and computer readable storage medium | |
WO2022267910A1 (zh) | 用于无线通信***的基站侧电子设备和终端侧电子设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17931537 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020510525 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2017438883 Country of ref document: AU Date of ref document: 20171107 Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2017931537 Country of ref document: EP Effective date: 20200608 |