WO2019029289A1 - 一种信道状态信息csi反馈方法和资源分配方法及设备 - Google Patents
一种信道状态信息csi反馈方法和资源分配方法及设备 Download PDFInfo
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- WO2019029289A1 WO2019029289A1 PCT/CN2018/093179 CN2018093179W WO2019029289A1 WO 2019029289 A1 WO2019029289 A1 WO 2019029289A1 CN 2018093179 W CN2018093179 W CN 2018093179W WO 2019029289 A1 WO2019029289 A1 WO 2019029289A1
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- 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
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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
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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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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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
- H04B7/06—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]
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- 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
Definitions
- the present application relates to the field of wireless communications technologies, and in particular, to a channel state information CSI feedback method and resource allocation method and device.
- the terminal In a MIMO (Multiple-Input Multiple-Output) system, the terminal needs to report CSI (Channel State Information).
- the CSI includes RI (Rank Indication) and PMI (Precoding Matrix Indicator).
- the CQI Channel Quality Information
- CSI-RS Channel State Information Reference Signal
- CRI information For the base station scheduling, the base station needs to allocate the uplink channel resource for the terminal to report the CSI.
- the CSI load reported by the terminal dynamically changes with the RI.
- the Type I codebook and the Type II codebook are defined in the NR (New Radio Access Technology) system.
- the load of the CSI reported by the terminal will follow the RI.
- the dynamic range of the load is large. If the uplink information resources are allocated according to the maximum cost, the resources may be wasted. If the allocated uplink resources are small, the accuracy of the feedback cannot be guaranteed.
- the embodiment of the present application provides a channel state information CSI feedback method and a resource allocation method and device, which are used to solve the technical problem that an effective CSI feedback method is lacking in a case where the feedback dynamic range is large in the NR system.
- the embodiment of the present application provides a channel state information CSI feedback method, including:
- the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- the terminal acquires a first uplink channel resource allocated by the base station to the terminal, and when the value of the RI is greater than 1, the terminal uses the rank 1 CSI information in the CSI information as the first CSI information and passes the The first uplink channel resource is sent to the base station, so that the base station can allocate, by using the first CSI information, the second uplink channel resource for transmitting the second CSI information, where the second CSI information is Removing the remaining CSI information of the rank 1 CSI information from the CSI information;
- the terminal acquires the second uplink channel resource, and sends the second CSI information to the base station by using the second uplink channel resource, so that after receiving the second CSI information, the base station
- the first CSI information is combined with the second CSI information to obtain the complete CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, the subband phase of the first layer in the PMI, and the CQI jointly encoded and sent to the first uplink channel resource The base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal independently codes the broadband amplitude of the second layer to the RI layer in the PMI, and the second layer to the RI layer in the PMI, the second layer to the RI layer
- the subband amplitude, the subband phase of the second layer to the RI layer in the PMI, and the complementary codeword codeword are jointly encoded by the CQI and then transmitted to the base station through the second uplink channel resource.
- the method includes:
- the terminal sends the CSI information as the first CSI information to the base station by using the first uplink channel resource, so that the base station receives the complete CSI information by using the first CSI information.
- the embodiment of the present application further provides a resource allocation method, including:
- the base station allocates, to the terminal, a first uplink channel resource for transmitting the first CSI information, where the first uplink channel resource is determined by a codebook parameter configured by the base station for the terminal;
- the first CSI information is rank 1 CSI information in the CSI information, and the base station is used according to the total uplink channel resource and the first CSI information. Determining, by the first uplink channel resource, a second uplink channel resource required for the terminal to send the second CSI information, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information;
- the base station allocates the second uplink channel resource to the terminal, so that the terminal can send the second CSI information by using the second uplink channel resource.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- the embodiment of the present application further provides a terminal, including:
- a calculation module configured to calculate channel state information CSI using a codebook parameter configured by a base station, and obtain CSI information, where the CSI information includes a rank indication RI;
- a first acquiring module configured to acquire a first uplink channel resource allocated by the base station to the terminal, where the terminal uses the rank 1 CSI information in the CSI information as the first CSI information when the value of the RI is greater than 1. And transmitting, by the first uplink channel resource, the base station, to enable the base station to allocate, by using the first CSI information, a second uplink channel resource for transmitting the second CSI information, where the The second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information;
- a second acquiring module configured to acquire the second uplink channel resource, and send the second CSI information to the base station by using the second uplink channel resource, so that the base station receives the second CSI information Then, the first CSI information is combined with the second CSI information to obtain the complete CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the second encoding module is configured to jointly encode the CRI, the RI, and the broadband amplitude of the first layer in the PMI, and the PMI, when the rank 1 CSI information includes a CRI
- the twiddle factor, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the subband phase of the first layer in the PMI and the CQI are jointly encoded and passed through the first uplink Channel resources are sent to the base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the method includes: a second encoding module, configured to independently code the broadband amplitude of the second layer to the RI layer in the PMI, the strongest coefficient of the second layer to the RI layer in the PMI, and the second of the PMI
- the sub-band amplitude of the layer to the RI layer, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI joint coding of the redundant codeword codeword are jointly transmitted to the base station through the second uplink channel resource.
- the method includes:
- a sending module configured to send the CSI information as the first CSI information to the base station by using the first uplink channel resource, so that the base station receives the complete CSI by using the first CSI information. information.
- the embodiment of the present application further provides a base station device, including:
- a first allocation module configured to allocate, by the terminal, a first uplink channel resource for transmitting the first CSI information, where the first uplink channel resource is determined by a codebook parameter configured by the base station for the terminal;
- a determining module configured to determine, by the base station, a total uplink channel resource required by the terminal to send the CSI information according to a value of an RI in the first CSI information that is sent by the terminal by using the first uplink channel resource;
- a calculation module configured to: when the value of the RI is greater than 1, the first CSI information is rank 1 CSI information in the CSI information, and is used according to the total uplink channel resource and sending the first CSI information The first uplink channel resource, the second uplink channel resource required for the terminal to send the second CSI information is calculated, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information;
- a second allocation module configured to allocate the second uplink channel resource to the terminal, so that the terminal can send the second CSI information by using the second uplink channel resource.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including
- a module configured to receive, by the terminal, the first CSI sent by using the first uplink channel resource:
- Receiving information to obtain the complete CSI information Receiving information to obtain the complete CSI information.
- the embodiment of the present application provides a terminal, which mainly includes a processor and a memory, wherein the memory stores a preset program, and the processor reads the program in the memory, and executes the following process according to the program:
- the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- the terminal acquires a first uplink channel resource allocated by the base station to the terminal, and when the value of the RI is greater than 1, the terminal uses the rank 1 CSI information in the CSI information as the first CSI information and passes the The first uplink channel resource is sent to the base station, so that the base station can allocate, by using the first CSI information, the second uplink channel resource for transmitting the second CSI information, where the second CSI information is Removing the remaining CSI information of the rank 1 CSI information from the CSI information;
- the terminal acquires the second uplink channel resource, and sends the second CSI information to the base station by using the second uplink channel resource, so that after receiving the second CSI information, the base station
- the first CSI information is combined with the second CSI information to obtain the complete CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, the subband phase of the first layer in the PMI, and the CQI jointly encoded and sent to the first uplink channel resource The base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal independently codes the broadband amplitude of the second layer to the RI layer in the PMI, and the second layer to the RI layer in the PMI, the second layer to the RI layer
- the subband amplitude, the subband phase of the second layer to the RI layer in the PMI, and the complementary codeword codeword are jointly encoded by the CQI and then transmitted to the base station through the second uplink channel resource.
- the terminal when the value of the RI is 1, the terminal sends the CSI information as the first CSI information to the base station by using the first uplink channel resource, so that the base station passes the The first CSI information receives the complete CSI information.
- the embodiment of the present application provides a base station device, where the base station device mainly includes a processor and a memory, wherein the memory stores a preset program, the processor reads the program in the memory, and performs the following process according to the program. :
- the base station allocates, to the terminal, a first uplink channel resource for transmitting the first CSI information, where the first uplink channel resource is determined by a codebook parameter configured by the base station for the terminal;
- the first CSI information is rank 1 CSI information in the CSI information, and the base station is used according to the total uplink channel resource and the first CSI information. Determining, by the first uplink channel resource, a second uplink channel resource required for the terminal to send the second CSI information, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information;
- the base station allocates the second uplink channel resource to the terminal, so that the terminal can send the second CSI information by using the second uplink channel resource.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information
- the base station receives the first CSI sent by the terminal by using the first uplink channel resource. Information, which in turn obtains the complete CSI information.
- the embodiment of the present application further provides a channel state information CSI feedback method, including:
- the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- an uplink channel resource allocated by the base station to the terminal where the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data;
- the terminal When the value of the RI is greater than 1, the terminal sends the rank 1 CSI information in the CSI information as the first CSI information and sends the information to the base station through the first area; And transmitting, by the second area, the second CSI information to the base station, so that the base station receives the first CSI information and the first After the second CSI information, the first CSI information and the second CSI information are combined to obtain the complete CSI information, where the second CSI information is the CSI information except the rank 1 CSI information. Remaining CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal independently codes the broadband amplitude of the second layer to the RI layer in the PMI, and the second layer to the RI layer in the PMI, the second layer to the RI layer
- the subband amplitude, the subband phase of the second layer to the RI layer in the PMI, and the CQI joint coding corresponding to the redundant codeword codeword are used as the second CSI information, and are transmitted to the base station through the second region.
- the method includes:
- the terminal sends the CSI information as the first CSI information to the base station by using the first area, so that the base station receives the complete CSI information by using the first CSI information.
- the embodiment of the present application further provides a resource allocation method, including:
- the base station allocates an uplink channel resource to the terminal, where the uplink channel resource is determined by a base station configured as a codebook parameter configured by the terminal, where the uplink channel resource includes a first area for transmitting the first CSI information and a third part for transmitting user data. Second area;
- the base station When the value of the RI is greater than 1 in the CSI information, the base station receives the first CSI information sent by the terminal by using the first area, and the second CSI information sent by the receiving terminal on the second area, and then the first CSI. Combining the information with the second CSI information to obtain complete CSI information;
- the first CSI information is rank 1 CSI information in the CSI information
- the second CSI information is residual CSI information in the CSI information excluding rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- the embodiment of the present application further provides a terminal, including:
- a calculating unit configured to calculate channel state information CSI using a codebook parameter configured by a base station, and obtain CSI information, where the CSI information includes a rank indication RI;
- An acquiring unit configured to acquire an uplink channel resource allocated by the base station to the terminal, where the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data;
- a first sending unit configured to send, according to the first CSI information, the rank 1 CSI information in the CSI information to the base station, when the value of the RI is greater than 1,
- the part of the user data to be transmitted in the two areas is replaced with the second CSI information, so that the second CSI information is sent to the base station by using the second area, so that the base station receives the first CSI information.
- the first CSI information and the second CSI information can be combined to obtain the complete CSI information, where the second CSI information is the rank removed from the CSI information. 1 Remaining CSI information of CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal further includes:
- a first coding unit configured to jointly encode the CRI, the RI, and a broadband amplitude of a first layer in the PMI when the rank 1 CSI information includes a CRI, and to rotate a factor, a PMI in the PMI Medium beam selection, the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, the subband phase of the first layer in the PMI, and the CQI jointly encoded and transmitted to the Base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal further includes:
- a second coding unit configured to independently code a wideband amplitude of the second layer to the RI layer in the PMI, a strongest coefficient of the second layer to the RI layer in the PMI, and a second layer to the RI layer in the PMI
- the subband amplitude, the subband phase of the second layer to the RI layer in the PMI, and the CQI joint coding of the redundant codeword codeword are used as the second CSI information, and are transmitted to the base station through the second region.
- the terminal further includes:
- a second sending unit configured to send the CSI information as the first CSI information to the base station by using the first area, so that the base station receives the complete CSI by using the first CSI information. information.
- the embodiment of the present application further provides a base station device, including:
- An allocating module configured to allocate, by the base station, an uplink channel resource, where the uplink channel resource is determined by a base station configured by a terminal, where the uplink channel resource includes a first area for transmitting the first CSI information, and is used for transmitting a second area of user data;
- a first receiving module configured to: when the value of the RI in the CSI information is greater than 1, the base station receives the first CSI information sent by the terminal by using the first area, and the second CSI information that is sent by the receiving terminal on the second area, And combining the first CSI information and the second CSI information to obtain complete CSI information;
- the first CSI information is rank 1 CSI information in the CSI information
- the second CSI information is residual CSI information in the CSI information excluding rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the base station device when the value of the RI is 1, the first CSI information is the complete CSI information, and the base station device further includes:
- the second receiving module is configured to receive the first CSI information that is sent by the terminal by using the first area, and obtain the complete CSI information by using the first CSI information.
- the embodiment of the present application provides a terminal, which mainly includes a processor and a memory, wherein the memory stores a preset program, and the processor reads the program in the memory, and executes the following process according to the program:
- the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data;
- the rank 1 CSI information in the CSI information is used as the first CSI information and sent to the base station by using the first area; the part to be transmitted in the second area is to be transmitted.
- the user data is replaced with the second CSI information, so that the second CSI information is sent to the base station by using the second area, so that the base station receives the first CSI information and the second CSI information.
- the first CSI information and the second CSI information are combined to obtain the complete CSI information, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information. .
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal independently codes the broadband amplitude of the second layer to the RI layer in the PMI, and the second layer to the RI layer in the PMI, the second layer to the RI layer
- the sub-band amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI joint coding of the redundant codeword codeword are used as the second CSI information, and are transmitted to the base station through the second area.
- the method includes:
- the terminal sends the CSI information as the first CSI information to the base station by using the first area, so that the base station receives the complete CSI information by using the first CSI information.
- the embodiment of the present application provides a base station device, where the base station device mainly includes a processor and a memory, wherein a preset program is stored in the memory, and the processor reads the program in the memory, and executes the following according to the program. process:
- the first CSI information is rank 1 CSI information in the CSI information
- the second CSI information is residual CSI information in the CSI information excluding rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- the channel state information CSI is calculated by using the codebook parameter configured by the terminal, and the CSI information is obtained, where the CSI information includes a rank indication RI; and the terminal acquires the base station as the terminal.
- the first uplink channel resource that is allocated, when the value of the RI is greater than 1 the terminal sends the rank 1 CSI information in the CSI information as the first CSI information, and sends the first uplink channel resource to the a base station, configured to enable the base station to allocate, by using the first CSI information, a second uplink channel resource for transmitting the second CSI information, where the second CSI information is the CSI information except the rank 1 CSI Remaining CSI information of the information; and the terminal acquiring the second uplink channel resource, and transmitting the second CSI information to the base station by using the second uplink channel resource, so that the base station receives the After the second CSI information, the first CSI information is combined with the second CSI information to obtain a complete technical solution of the CSI information.
- the CSI information that the terminal needs to feed back is decomposed into rank 1 CSI information and remaining CSI information, and the base station allocates uplink channel resources according to the rank 1 CSI information and the remaining CSI information, respectively, and the terminal reports the rank 1 CSI information and the remaining respectively.
- CSI information thereby achieving efficient allocation of uplink resources and accurate feedback of CSI information.
- the channel state information CSI is calculated by using the codebook parameter configured by the terminal, and the CSI information is obtained, where the CSI information includes a rank indication RI; and the terminal acquires the base station to allocate the terminal.
- Uplink channel resource the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data; and when the value of the RI is greater than 1, the terminal will The rank 1 CSI information in the CSI information is used as the first CSI information and sent to the base station by using the first area; and part of the user data to be transmitted in the second area is replaced with the second CSI information, so as to pass the Transmitting, by the second area, the second CSI information to the base station, so that the base station, after receiving the first CSI information and the second CSI information, can perform the first CSI information and the The second CSI information is combined to obtain the complete CSI information, where the second CSI information is a technical solution in which the remaining CSI information of the rank 1 CSI information
- the CSI information that the terminal needs to feed back is decomposed into rank 1 CSI information and remaining CSI information, and the uplink channel resources allocated by the base station for the terminal include a first area for transmitting rank 1 CSI information and used for transmitting the user.
- the second area of the data in which the terminal sends the rank 1 CSI information in the CSI information to the base station by using the first area in the uplink channel resource, and replaces part of the user data sent in the second area of the uplink channel resource with the CSI information.
- the remaining CSI information, and then the remaining CSI information is sent to the base station through the second area in the uplink channel resource, thereby realizing effective allocation of uplink resources and accurate feedback of CSI information.
- FIG. 1 is a flowchart of a channel state information CSI feedback method according to Embodiment 1 of the present application;
- FIG. 2 is a schematic structural diagram of a terminal according to Embodiment 1 of the present application.
- FIG. 3 is a schematic structural diagram of a base station device according to Embodiment 1 of the present application.
- FIG. 4 is a flowchart of a channel state information CSI feedback method according to Embodiment 2 of the present application.
- FIG. 5 is a schematic structural diagram of a terminal according to Embodiment 2 of the present application.
- FIG. 6 is a schematic structural diagram of a base station device according to Embodiment 2 of the present application.
- a channel state information CSI feedback method including the following steps:
- Step S101 The terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- Step S102 The terminal acquires a first uplink channel resource allocated by the base station to the terminal, and when the value of the RI is greater than 1, the terminal uses the rank 1 CSI information in the CSI information as the first CSI information and passes the The first uplink channel resource is sent to the base station, so that the base station can allocate, by using the first CSI information, the second uplink channel resource for transmitting the second CSI information, the second CSI information, according to the first CSI information. The remaining CSI information of the rank 1 CSI information is removed from the CSI information.
- Step S103 The terminal acquires the second uplink channel resource, and sends the second CSI information to the base station by using the second uplink channel resource, so that the base station after receiving the second CSI information And combining the first CSI information and the second CSI information to obtain complete CSI information.
- the embodiment of the present application first performs step S101, that is, the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI.
- the base station can configure different codebook parameters for the terminal to enable the terminal to calculate the channel state information CSI for the codebook parameters configured by the base station.
- the base station can configure the type II codebook for the terminal, and then the terminal.
- the CSI can be calculated by using the type II codebook configured by the base station to obtain the CSI information.
- the base station can also configure the type I codebook for the terminal, and the terminal can use the type I codebook configured by the base station to calculate the CSI, and obtain the CSI information.
- Different types of codebooks also have different port numbers.
- the type II codebook includes a 32-port type II codebook, a 16-port type II codebook, and the like.
- a base station is configured as a terminal for a 32-port type.
- the terminal can calculate the CSI by using the 32-port type II codebook configured by the base station for the terminal, and obtain CSI information, where the CSI information includes a rank indication RI, where the RI value is 1, or the RI is greater than 1 as 2, etc.
- the CSI information may further include content required for constructing a precoding matrix with rank rank 1 and channel quality corresponding to a codeword codeword.
- the CQI is indicated, and if the base station configures more than one CSI-RS resource for the terminal, it should also include the CRI.
- the RI in the CSI information, the content required to construct the precoding matrix with a rank rank of 1, and the channel quality indication CQI corresponding to a codeword codeword, and the CRI (if required to be reported) are also referred to as Rank 1 CSI information of the CSI information.
- the content required for constructing the precoding matrix with a rank rank of 1 may include: a precoding matrix indicating a twiddle factor in the PMI, a beam selection in the PMI, and a strongest coefficient of the first layer in the PMI, The broadband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the subband phase of the first layer in the PMI.
- the CSI information may include the strongest coefficient of the second layer to the RI layer in the PMI, in addition to the rank 1 CSI information, and the second layer in the PMI.
- the CSI information also includes the strongest coefficient of the second layer in the PMI, the broadband amplitude of the second layer in the PMI, the subband amplitude of the second layer in the PMI, and the second layer in the PMI.
- step S102 the terminal acquires the first uplink channel resource allocated by the base station to the terminal, and when the value of the RI is greater than 1, the terminal will
- the rank 1 CSI information in the CSI information is sent as the first CSI information to the base station by using the first uplink channel resource, so that the base station can allocate the terminal for transmission according to the first CSI information.
- the second uplink channel resource of the second CSI information where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information.
- the terminal receives the first uplink channel resource allocated by the base station for the terminal.
- the base station allocates the first uplink channel resource to the terminal according to the cost of the rank 1 CSI information, and the rank 1 CSI information is the terminal.
- the CSI information at the time of codebook feedback with rank Rank 1 is used.
- the base station is configured with only one 32-port CSI-RS resource, that is, CRI reporting is not required.
- the corresponding channel quality indication CQI that is, the CQI of each sub-band is 4 bits.
- the first uplink channel resource occupied by the terminal for the terminal to transmit the 235-bit information is used by the terminal to feed back the first CSI information according to the calculated size of the rank 1 CSI information.
- the terminal determines that the complete CSI information is used according to the value of the RI in the CSI information obtained by the terminal.
- the first CSI information is sent to the base station by using the first uplink channel resource occupied by the 235-bit information allocated by the base station, or is the 235 bit transmitted by the base station as the first CSI information.
- the first uplink channel resource occupied by the information is sent to the base station.
- the terminal uses the rank 1 CSI information in the calculated CSI information as the first CSI information, and the 256-bit information allocated by the base station is occupied.
- An uplink channel resource is sent to the base station.
- the terminal may send the first CSI information, that is, the RI in the rank 1 CSI information and the first layer in the PMI, when the first CSI information is sent by using the foregoing first uplink channel resource.
- the wideband amplitude is combined into one part for coding, the rotation factor in PMI, the beam selection in PMI, the strongest coefficient of the first layer in PMI, the subband amplitude of the first layer in PMI, and the subband phase of the first layer in PMI After being combined with the CQI to be encoded, it is sent to the base station through the first uplink channel resource.
- the terminal may also use the first CSI information, that is, the RI in the rank 1 CSI information, the broadband amplitude of the first layer in the PMI, the rotation factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, PMI.
- the sub-band amplitude of the first layer in the PMI, the sub-band phase of the first layer in the PMI is encoded as a whole with the CQI, and then transmitted to the base station through the first uplink channel resource.
- the rank 1 CSI information also includes the CRI
- the RI in the rank 1 CSI information, the broadband amplitude of the first layer in the PMI, and the PMI may be used.
- the sub-band amplitude of the first layer in the PMI, the sub-band phase of the first layer in the PMI is combined with the CQI to be encoded, and then transmitted to the base station through the first uplink channel resource.
- the terminal combines the RI in the rank 1 CSI information with the wideband amplitude of the first layer in the PMI into one part for encoding, and the rotation factor in the PMI, the beam selection in the PMI, and the first layer in the PMI.
- the strongest coefficient, the sub-band amplitude of the first layer in the PMI, the sub-band phase of the first layer in the PMI and the CQI are combined into one part for encoding, and then sent to the base station through the first uplink channel resource as an example.
- the base station receives the rank 1 CSI information sent by the terminal using the first uplink information resource, where the rank 1 CSI information includes the RI in the CSI information obtained by the terminal, then the base station can receive the rank 1 from the received
- the CSI information determines the RI, and calculates the total uplink channel resource required for the terminal side to transmit the CSI information according to the value of the RI.
- the CQI of each sub-band is 4 bits
- step S103 the terminal acquires the second uplink channel resource, and sends the second CSI to the base station by using the second uplink channel resource.
- Information so that after receiving the second CSI information, the base station combines the first CSI information and the second CSI information to obtain complete CSI information.
- the terminal after receiving the second uplink channel resource occupied by the 178-bit information allocated by the base station for the terminal, the terminal removes the remaining CSI information from the second CSI information, that is, the CSI information, which is the feedback in the CSI information.
- the CSI information is sent to the base station by using the second uplink channel resource that is occupied by the 178-bit information.
- the terminal removes the remaining CSI of the rank 1 CSI information by transmitting the second CSI information, that is, the CSI information, by using the second uplink channel resource.
- the wideband amplitude of the second layer to the RI layer in the PMI in the second CSI information may be independently coded, and the strongest coefficient of the second layer to the RI layer in the PMI, the second layer to the RI in the PMI
- the sub-band amplitude of the layer, the sub-band phases of the second layer to the RI layer in the PMI are combined into one part for encoding, and then transmitted to the base station by using the second uplink channel resource.
- the terminal may also set the broadband amplitude of the second layer to the RI layer in the PMI in the second CSI information to the strongest coefficient of the second layer to the RI layer in the PMI, and the sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI is encoded as a whole, and then transmitted to the base station through the second uplink channel resource.
- the wideband amplitudes of the second layer to the RI layer in the PMI in the second CSI information are independently coded, and the strongest coefficient of the second layer to the RI layer in the PMI, and the second coefficient in the PMI
- the sub-band amplitude of the layer to the RI layer and the sub-band phase of the second layer to the RI layer in the PMI are combined into one part for encoding, and then sent to the base station by using the second uplink channel resource, for example, After receiving the second CSI information sent by the terminal by using the second uplink channel resource, the base station may combine the previously received first CSI information and the currently received second CSI information to obtain complete CSI information.
- the terminal after receiving the second uplink channel resource occupied by the 208-bit information allocated by the base station for the terminal, the terminal removes the remaining CSI information from the second CSI information, that is, the CSI information, which is the feedback in the CSI information.
- the CSI information is sent to the base station by using the second uplink channel resource that is occupied by the 208-bit information.
- the terminal removes the remaining CSI of the rank 1 CSI information by transmitting the second CSI information, that is, the CSI information, by using the second uplink channel resource.
- the wideband amplitude of the second layer to the RI layer in the PMI in the second CSI information may be independently coded, and the strongest coefficient of the second layer to the RI layer in the PMI, the second layer to the RI in the PMI
- the sub-band amplitude of the layer, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI corresponding to the remaining one codeword codeword are combined into one part for encoding, and then sent to the Base station.
- the CSI information that the terminal needs to feed back is decomposed into rank 1 CSI information and remaining CSI information.
- the base station allocates uplink channel resources according to the rank 1 CSI information and the remaining CSI information, and the terminal respectively reports the rank 1 CSI information and the remaining CSI information, thereby realizing effective allocation of uplink resources and accurate feedback of CSI information.
- the value of the RI in the CSI information obtained by the terminal calculation is 1.
- the CSI information obtained by the terminal calculation only has the portion of the rank 1 CSI information, then the terminal is When receiving the first uplink channel allocated by the base station, the complete CSI information may be transmitted to the base station as the first CSI information by using the first uplink channel.
- the first uplink channel resource allocated for the bits occupied by the transmission 235 information is used by the terminal to feed back the first CSI information.
- the CSI information obtained by the terminal calculation only has the portion of the rank 1 CSI information, and the rank 1 CSI information is also 235 bits, then The terminal can send the 235-bit rank 1 CSI information to the base station by transmitting the first uplink channel resource occupied by the 235-bit information, thereby realizing the effective allocation of the uplink resource and the accurate feedback of the CSI information.
- a resource allocation method is provided in the embodiment of the present application.
- the resource allocation method is applied to the base station side.
- the method includes:
- the base station allocates, to the terminal, a first uplink channel resource for transmitting the first CSI information, where the first uplink channel resource is determined by a codebook parameter configured by the base station for the terminal;
- the first CSI information is rank 1 CSI information in the CSI information, and the base station is used according to the total uplink channel resource and the first CSI information. Determining, by the first uplink channel resource, a second uplink channel resource required for the terminal to send the second CSI information, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information;
- the base station allocates the second uplink channel resource to the terminal, so that the terminal can send the second CSI information by using the second uplink channel resource.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- the terminal mainly includes:
- the calculation module 10 is configured to calculate channel state information CSI using a codebook parameter configured by a base station, and obtain CSI information, where the CSI information includes a rank indication RI;
- the first obtaining module 11 is configured to acquire a first uplink channel resource that is allocated by the base station to the terminal, and when the value of the RI is greater than 1, the terminal uses the rank 1 CSI information in the CSI information as the first CSI.
- the information is sent to the base station by using the first uplink channel resource, so that the base station can allocate, by using the first CSI information, the second uplink channel resource for transmitting the second CSI information, according to the first CSI information,
- the second CSI information is the remaining CSI information in the CSI information excluding the rank 1 CSI information;
- the second acquiring module 12 is configured to acquire the second uplink channel resource, and send the second CSI information to the base station by using the second uplink channel resource, so that the base station receives the second CSI After the information, the first CSI information is combined with the second CSI information to obtain the complete CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the second encoding module is configured to jointly encode the CRI, the RI, and the broadband amplitude of the first layer in the PMI, and the PMI, when the rank 1 CSI information includes a CRI
- the twiddle factor, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, the subband phase of the first layer in the PMI, and the CQI jointly coded through the first uplink Channel resources are sent to the base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- a second encoding module is configured to separately code the broadband amplitudes of the second layer to the RI layer in the PMI, the strongest coefficient of the second layer to the RI layer in the PMI, and the second layer in the PMI
- the sub-band amplitude to the RI layer, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI joint coding corresponding to the redundant codeword codeword are transmitted to the base station through the second uplink channel resource.
- the method includes:
- a sending module configured to send the CSI information as the first CSI information to the base station by using the first uplink channel resource, so that the base station receives the complete CSI by using the first CSI information. information.
- a base station device is provided in the embodiment of the present application.
- the equipment mainly includes:
- a first allocation module 21 configured to allocate, by the terminal, a first uplink channel resource for transmitting the first CSI information, where the first uplink channel resource is determined by a codebook parameter configured by the base station for the terminal;
- a determining module 22 configured to determine, by the base station, a total uplink channel resource required by the terminal to send the CSI information according to a value of an RI in the first CSI information that is sent by the terminal by using the first uplink channel resource;
- the calculating module 23 is configured to: when the value of the RI is greater than 1, the first CSI information is rank 1 CSI information in the CSI information, according to the total uplink channel resource and the sending the first CSI information Using the first uplink channel resource, the second uplink channel resource required for the terminal to send the second CSI information is calculated, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information. ;
- the second allocation module 24 is configured to allocate the second uplink channel resource to the terminal, so that the terminal can send the second CSI information by using the second uplink channel resource.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- a receiving module configured to receive the first CSI information that is sent by the terminal by using the first uplink channel resource, to obtain the complete CSI information.
- the embodiment of the present application provides a terminal, and the specific implementation of the CSI feedback method for implementing the channel state information of the terminal can be referred to the description of the method embodiment, and the repeated description is not repeated.
- the terminal mainly includes a processor and a memory, wherein the memory stores a preset program, the processor reads the program in the memory, and executes the following process according to the program:
- the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- the terminal acquires a first uplink channel resource allocated by the base station to the terminal, and when the value of the RI is greater than 1, the terminal uses the rank 1 CSI information in the CSI information as the first CSI information and passes the The first uplink channel resource is sent to the base station, so that the base station can allocate, by using the first CSI information, the second uplink channel resource for transmitting the second CSI information, where the second CSI information is Removing the remaining CSI information of the rank 1 CSI information from the CSI information;
- the terminal acquires the second uplink channel resource, and sends the second CSI information to the base station by using the second uplink channel resource, so that after receiving the second CSI information, the base station
- the first CSI information is combined with the second CSI information to obtain the complete CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, the subband phase of the first layer in the PMI, and the CQI jointly encoded and sent to the first uplink channel resource The base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal independently codes the broadband amplitude of the second layer to the RI layer in the PMI, and the second layer to the RI layer in the PMI, the second layer to the RI layer
- the subband amplitude, the subband phase of the second layer to the RI layer in the PMI, and the complementary codeword codeword are jointly encoded by the CQI and then transmitted to the base station through the second uplink channel resource.
- the terminal when the value of the RI is 1, the terminal sends the CSI information as the first CSI information to the base station by using the first uplink channel resource, so that the base station passes the The first CSI information receives the complete CSI information.
- the base station device mainly includes a processor and a memory, wherein the memory stores a preset program, the processor reads the program in the memory, and executes the following process according to the program:
- the base station allocates, to the terminal, a first uplink channel resource for transmitting the first CSI information, where the first uplink channel resource is determined by a codebook parameter configured by the base station for the terminal;
- the first CSI information is rank 1 CSI information in the CSI information, and the base station is used according to the total uplink channel resource and the first CSI information. Determining, by the first uplink channel resource, a second uplink channel resource required for the terminal to send the second CSI information, where the second CSI information is the remaining CSI information of the CSI information excluding the rank 1 CSI information;
- the base station allocates the second uplink channel resource to the terminal, so that the terminal can send the second CSI information by using the second uplink channel resource.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information
- the base station receives the first CSI sent by the terminal by using the first uplink channel resource. Information, which in turn obtains the complete CSI information.
- another channel state information CSI feedback method provided by an embodiment of the present disclosure includes:
- Step S201 The terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- Step S202 The terminal acquires an uplink channel resource allocated by the base station to the terminal, where the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data.
- Step S203 When the value of the RI is greater than 1, the terminal sends the rank 1 CSI information in the CSI information as the first CSI information, and sends the information to the base station through the first area; The part of the user data to be transmitted in the area is replaced with the second CSI information, so that the second CSI information is sent to the base station by using the second area, so that the base station receives the first CSI information and After the second CSI information, the first CSI information and the second CSI information can be combined to obtain the complete CSI information, where the second CSI information is the CSI information except the rank 1 Remaining CSI information of CSI information.
- the CSI feedback method of the channel state information provided by the second embodiment of the present application first performs step S201, that is, the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information.
- the rank indication RI is included in the CSI information.
- the base station can configure different codebook parameters for the terminal to enable the terminal to calculate the channel state information CSI for the codebook parameters configured by the base station.
- the base station can configure the type II codebook for the terminal, and then the terminal.
- the CSI can be calculated by using the type II codebook configured by the base station to obtain the CSI information.
- the base station can also configure the type I codebook for the terminal, and the terminal can use the type I codebook configured by the base station to calculate the CSI, and obtain the CSI information.
- Different types of codebooks also have different port numbers.
- the type II codebook includes a 32-port type II codebook, a 16-port type II codebook, and the like.
- a base station is configured as a terminal for a 32-port type.
- the terminal can calculate the CSI by using the 32-port type II codebook configured by the base station for the terminal, and obtain CSI information, where the CSI information includes a rank indication RI, where the RI value is 1, or the RI is greater than 1 as 2, etc.
- the CSI information may further include content required for constructing a precoding matrix with rank rank 1 and channel quality corresponding to a codeword codeword.
- the CQI is indicated, and if the terminal needs to report the CSI-RS resource indication CRI, the rank 1 CSI information further includes a CRI.
- the base station is configured to configure only one 32-port CSI-RS resource. Need to report CRI.
- the RI in the CSI information, the content required to construct the precoding matrix with a rank rank of 1, and the channel quality indication CQI corresponding to a codeword codeword are also referred to as the rank 1 CSI information of the CSI information.
- the content required for constructing the precoding matrix with a rank rank of 1 may include: a precoding matrix indicating a twiddle factor in the PMI, a beam selection in the PMI, and a strongest coefficient of the first layer in the PMI, The broadband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the subband phase of the first layer in the PMI.
- the CSI information may include the strongest coefficient of the second layer to the RI layer in the PMI, in addition to the rank 1 CSI information, and the second layer in the PMI.
- the CSI information also includes the strongest coefficient of the second layer in the PMI, the broadband amplitude of the second layer in the PMI, the subband amplitude of the second layer in the PMI, and the second layer in the PMI.
- step S202 the terminal acquires an uplink channel resource allocated by the base station to the terminal, where the uplink channel resource includes a first used for transmitting the first CSI information.
- a zone and a second zone for transmitting user data are examples of the uplink channel resource allocated by the base station to the terminal.
- the terminal receives the uplink channel resource allocated by the base station for the terminal.
- the uplink channel resource allocated by the base station to the terminal includes a first area for transmitting the first CSI information and is used for transmitting the user.
- the second area of data is used for transmitting the user.
- the base station may set the size of the first region in the uplink channel resource allocated by the base station for the terminal according to the cost of the rank 1 CSI information, and the rank 1 CSI information is when the terminal uses the codebook feedback with the rank Rank 1 CSI information.
- the number of feedback subbands is 10
- the RI overhead is 3 bits
- the number of feedback subbands is 10
- the system pre-defined RI overhead is 3 bits
- the channel quality indicator corresponding to one codeword codeword is CQI.
- the CQI of the band is 4 bits.
- the base station can calculate according to The size of the rank 1 CSI information is used to set the size of the first region in the uplink channel resource to be the resource occupied by the 235-bit information. Then, the size of the resource in the uplink channel resource is the size of the resource occupied by the 235-bit information. An area can be used for the terminal to feed back the first CSI information.
- the base station may set the size of the second area to be used for transmitting user data in the uplink channel resource according to the size of the uplink pending data indicated by the terminal sending the user data sending request to the base station, for example, when When the terminal sends the uplink data to be transmitted in the user data transmission request to the base station to be 500 bits, the base station can set the size of the second area for transmitting the user data in the uplink channel resource to 500 bits of information.
- the occupied resource at this time, the size of the uplink channel resource allocated by the base station to the terminal is the sum of the resource size occupied by transmitting 500-bit data and the resource size occupied by transmitting 235-bit information.
- the size of the uplink data to be transmitted is 800 bits
- the base station can set the size of the second area for transmitting the user data in the uplink channel resource to 800 bits.
- the size of the uplink channel resource allocated by the base station to the terminal is the sum of the resource size occupied by the 800-bit data transmission and the resource size occupied by the 235-bit information.
- the size of the uplink to-be-transmitted data indicated by the base station to the base station is 500 bits
- the size of the uplink channel resource allocated by the base station to the terminal is occupied by transmitting 500-bit data.
- the size of the resource is the size of the resource used for transmitting the 500-bit data.
- the terminal When the value of the RI is greater than 1, the terminal sends the rank 1 CSI information in the CSI information as the first CSI information and sends the information to the base station through the first area; And transmitting, by the second area, the second CSI information to the base station, so that the base station receives the first CSI information and the first After the second CSI information, the first CSI information and the second CSI information are combined to obtain the complete CSI information, where the second CSI information is the CSI information except the rank 1 CSI information. Remaining CSI information.
- the terminal when the RI in the CSI information obtained by the terminal is greater than 1 and the RI is 2, after receiving the uplink channel resource sent by the base station, the terminal passes the rank 1 CSI information in the CSI information as the first CSI information. The first area of the received uplink channel resource is sent to the base station.
- the terminal may combine the first CSI information, that is, the RI in the rank 1 CSI information and the broadband amplitude of the first layer in the PMI into one part for encoding.
- the rotation factor in PMI, the beam selection in PMI, the strongest coefficient of the first layer in PMI, the sub-band amplitude of the first layer in PMI, the sub-band phase of the first layer in PMI and CQI combined into one part for encoding, then
- the first area in the uplink channel resource is sent to the base station.
- the terminal may also use the first CSI information, that is, the RI in the rank 1 CSI information, the broadband amplitude of the first layer in the PMI, the rotation factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, PMI.
- the sub-band amplitude of the first layer, the sub-band phase of the first layer in the PMI is encoded as a whole with the CQI, and then sent to the base station through the first region in the uplink channel resource.
- the terminal Combining the RI in the rank 1 CSI information with the wideband amplitude of the first layer in the PMI into one part for encoding, the rotation factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the first in the PMI
- the sub-band amplitude of the layer, the sub-band phase of the first layer in the PMI is combined with the CQI to be encoded, and then sent to the base station through the first region in the uplink channel resource as an example.
- the terminal further replaces the remaining CSI information of the calculated CSI information except the rank 1 CSI information with the second CSI information, and replaces part of the user data in the second region of the uplink channel resource, that is, the second channel resource.
- the area is originally used to transmit user data, but when the RI in the CSI information obtained by the terminal calculation is greater than 1, the CSI information includes rank 1 CSI information and remaining CSI information except for rank 1 CSI information in the CSI information.
- the terminal replaces part of the user data in the second area of the line channel resource with the remaining CSI information.
- the content of the second area in the uplink channel resource includes the remaining CSI information and the other part is not replaced. User data.
- the terminal when the remaining CSI information of the CSI information except the rank 1 CSI information is 178 bits, the terminal replaces part of the user data of the resource occupied by the 178-bit information in the second area of the line channel resource with the remaining CSI.
- the content transmitted by the second area in the uplink channel resource includes the resource occupied by the remaining CSI information of 178 bits and the resource occupied by the other part of the user data that is not replaced.
- the terminal may use the second area of the uplink channel resource to send the remaining CSI information except the rank 1 CSI information in the CSI information, that is, the second CSI information, to the base station, where the terminal is in the uplink channel resource.
- the second CSI information is sent, that is, the remaining CSI information of the CSI information except the rank 1 CSI information is removed
- the broadband amplitude of the second layer to the RI layer in the PMI in the second CSI information may be independently coded, and the PMI is The strongest coefficient of the second layer to the RI layer, the sub-band amplitude of the second layer to the RI layer in the PMI, and the sub-band phases of the second layer to the RI layer in the PMI are combined into one part for encoding, and then And transmitting to the base station by using a second area in the uplink channel resource.
- the terminal may also set the broadband amplitude of the second layer to the RI layer in the PMI in the second CSI information to the strongest coefficient of the second layer to the RI layer in the PMI, and the sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and encoded as a whole, are transmitted to the base station through the second region in the uplink channel resource.
- the base station may combine the first CSI information and the second CSI information to obtain a complete CSI information.
- the CSI information that the terminal needs to feed back is decomposed into rank 1 CSI information and remaining CSI information, and the uplink channel resource allocated by the base station for the terminal includes the first region for transmitting the rank 1 CSI information and And transmitting, in the second area of the user data, the terminal sends the rank 1 CSI information in the CSI information to the base station by using the first area in the uplink channel resource, and replacing part of the user data sent in the second area of the uplink channel resource with The remaining CSI information in the CSI information, and then the remaining CSI information is sent to the base station through the second area in the uplink channel resource, thereby realizing effective allocation of uplink resources and accurate feedback of CSI information.
- the value of the RI in the CSI information obtained by the terminal calculation is 1.
- the CSI information obtained by the terminal calculation only has the portion of the rank 1 CSI information, then the terminal is
- the complete CSI information may be transmitted as the first CSI information to the base station in the first area of the uplink channel resource, so that the base station receives the complete CSI information through the first CSI information.
- CSI information may be transmitted as the first CSI information to the base station in the first area of the uplink channel resource, so that the base station receives the complete CSI information through the first CSI information.
- a resource allocation method is provided in the embodiment of the present application.
- the method is applied to the base station side.
- the method includes:
- the base station allocates an uplink channel resource to the terminal, where the uplink channel resource is determined by a base station configured as a codebook parameter configured by the terminal, where the uplink channel resource includes a first area for transmitting the first CSI information and a third part for transmitting user data. Second area;
- the base station When the value of the RI is greater than 1 in the CSI information, the base station receives the first CSI information sent by the terminal by using the first area, and the second CSI information sent by the receiving terminal on the second area, and then the first CSI. Combining the information with the second CSI information to obtain complete CSI information;
- the first CSI information is rank 1 CSI information in the CSI information
- the second CSI information is residual CSI information in the CSI information excluding rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- the base station equipment mainly includes:
- the calculating unit 30 is configured to calculate channel state information CSI by using a codebook parameter configured by the base station, and obtain CSI information, where the CSI information includes a rank indication RI;
- the acquiring unit 31 is configured to acquire an uplink channel resource allocated by the base station to the terminal, where the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data;
- the first sending unit 32 is configured to: when the value of the RI is greater than 1, the rank 1 CSI information in the CSI information is used as the first CSI information and sent to the base station by using the first area; The part of the user data to be transmitted in the second area is replaced with the second CSI information, so that the second CSI information is sent to the base station by using the second area, so that the base station receives the first CSI. After the information and the second CSI information, the first CSI information and the second CSI information can be combined to obtain the complete CSI information, where the second CSI information is removed from the CSI information. Remaining CSI information of rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal further includes:
- a first coding unit configured to jointly encode the CRI, the RI, and a broadband amplitude of a first layer in the PMI when the rank 1 CSI information includes a CRI, and to rotate a factor, a PMI in the PMI Medium beam selection, the strongest coefficient of the first layer in the PMI, the subband amplitude of the first layer in the PMI, the subband phase of the first layer in the PMI, and the CQI jointly encoded and transmitted to the Base station.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a subband of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal further includes: a second coding unit, configured to separately code the broadband amplitudes of the second layer to the RI layer in the PMI, and to obtain the strongest coefficient of the second layer to the RI layer in the PMI, The sub-band amplitude of the second layer to the RI layer in the PMI, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI joint coding corresponding to the redundant codeword codeword are used as the second CSI information, by the second The area is sent to the base station.
- a second coding unit configured to separately code the broadband amplitudes of the second layer to the RI layer in the PMI, and to obtain the strongest coefficient of the second layer to the RI layer in the PMI, The sub-band amplitude of the second layer to the RI layer in the PMI, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI joint coding corresponding to the redundant codeword codeword are used as the second CSI information, by the
- the terminal further includes:
- a second sending unit configured to send the CSI information as the first CSI information to the base station by using the first area, so that the base station receives the complete CSI by using the first CSI information. information.
- the base station device mainly includes:
- An allocating module 40 configured to allocate, by the terminal, an uplink channel resource, where the uplink channel resource is determined by a base station configured for a terminal, where the uplink channel resource includes a first area for transmitting the first CSI information, and Transmitting a second area of user data;
- the first receiving module 41 is configured to: when the value of the RI in the CSI information is greater than 1, the base station receives the first CSI information sent by the terminal by using the first area, and the second CSI information that is sent by the receiving terminal on the second area. And combining the first CSI information and the second CSI information to obtain complete CSI information;
- the first CSI information is rank 1 CSI information in the CSI information
- the second CSI information is residual CSI information in the CSI information excluding rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the base station device when the value of the RI is 1, the first CSI information is the complete CSI information, and the base station device further includes:
- the second receiving module is configured to receive the first CSI information that is sent by the terminal by using the first area, and obtain the complete CSI information by using the first CSI information.
- the channel state information CSI is calculated by using the codebook parameter configured by the terminal, and the CSI information is obtained, where the CSI information includes a rank indication RI; and the terminal acquires the base station as the terminal.
- the first uplink channel resource that is allocated, when the value of the RI is greater than 1 the terminal sends the rank 1 CSI information in the CSI information as the first CSI information, and sends the first uplink channel resource to the a base station, configured to enable the base station to allocate, by using the first CSI information, a second uplink channel resource for transmitting the second CSI information, where the second CSI information is the CSI information except the rank 1 CSI Remaining CSI information of the information; and the terminal acquiring the second uplink channel resource, and transmitting the second CSI information to the base station by using the second uplink channel resource, so that the base station receives the After the second CSI information, the first CSI information is combined with the second CSI information to obtain a complete technical solution of the CSI information.
- the CSI information that the terminal needs to feed back is decomposed into rank 1 CSI information and remaining CSI information, and the base station allocates uplink channel resources according to the rank 1 CSI information and the remaining CSI information, respectively, and the terminal reports the rank 1 CSI information and the remaining respectively.
- CSI information thereby achieving efficient allocation of uplink resources and accurate feedback of CSI information.
- the channel state information CSI is calculated by using the codebook parameter configured by the terminal, and the CSI information is obtained, where the CSI information includes a rank indication RI; and the terminal acquires the base station to allocate the terminal.
- Uplink channel resource the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data; and when the value of the RI is greater than 1, the terminal will The rank 1 CSI information in the CSI information is used as the first CSI information and sent to the base station by using the first area; and part of the user data to be transmitted in the second area is replaced with the second CSI information, so as to pass the Transmitting, by the second area, the second CSI information to the base station, so that the base station, after receiving the first CSI information and the second CSI information, can perform the first CSI information and the The second CSI information is combined to obtain the complete CSI information, where the second CSI information is a technical solution in which the remaining CSI information of the rank 1 CSI information
- the CSI information that the terminal needs to feed back is decomposed into rank 1 CSI information and remaining CSI information, and the uplink channel resources allocated by the base station for the terminal include a first area for transmitting rank 1 CSI information and used for transmitting the user.
- the second area of the data in which the terminal sends the rank 1 CSI information in the CSI information to the base station by using the first area in the uplink channel resource, and replaces part of the user data sent in the second area of the uplink channel resource with the CSI information.
- the remaining CSI information, and then the remaining CSI information is sent to the base station through the second area in the uplink channel resource, thereby realizing effective allocation of uplink resources and accurate feedback of CSI information.
- the embodiment of the present application provides a terminal, and the specific implementation of the CSI feedback method for implementing the channel state information of the terminal can be referred to the description of the method embodiment, and the repeated description is not repeated.
- the terminal mainly includes a processor and a memory, wherein the memory stores a preset program, the processor reads the program in the memory, and executes the following process according to the program:
- the terminal calculates the channel state information CSI by using the codebook parameter configured by the base station, and obtains CSI information, where the CSI information includes a rank indication RI;
- an uplink channel resource allocated by the base station to the terminal where the uplink channel resource includes a first area for transmitting first CSI information and a second area for transmitting user data;
- the terminal When the value of the RI is greater than 1, the terminal sends the rank 1 CSI information in the CSI information as the first CSI information and sends the information to the base station through the first area; And transmitting, by the second area, the second CSI information to the base station, so that the base station receives the first CSI information and the first After the second CSI information, the first CSI information and the second CSI information are combined to obtain the complete CSI information, where the second CSI information is the CSI information except the rank 1 CSI information. Remaining CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the first layer in the PMI The subband phase.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the terminal jointly encodes the CRI, the RI, and a broadband amplitude of a first layer in the PMI, and a twiddle factor, a PMI in the PMI.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the terminal independently codes the broadband amplitude of the second layer to the RI layer in the PMI, and the second layer to the RI layer in the PMI, the second layer to the RI layer
- the sub-band amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the CQI joint coding of the redundant codeword codeword are used as the second CSI information, and are transmitted to the base station through the second area.
- the method includes:
- the terminal sends the CSI information as the first CSI information to the base station by using the first area, so that the base station receives the complete CSI information by using the first CSI information.
- the base station device mainly includes a processor and a memory, wherein the memory stores a preset program, the processor reads the program in the memory, and executes the following process according to the program:
- the base station allocates an uplink channel resource to the terminal, where the uplink channel resource is determined by a base station configured as a codebook parameter configured by the terminal, where the uplink channel resource includes a first area for transmitting the first CSI information and a third part for transmitting user data. Second area;
- the base station When the value of the RI is greater than 1 in the CSI information, the base station receives the first CSI information sent by the terminal by using the first area, and the second CSI information sent by the receiving terminal on the second area, and then the first CSI. Combining the information with the second CSI information to obtain complete CSI information;
- the first CSI information is rank 1 CSI information in the CSI information
- the second CSI information is residual CSI information in the CSI information excluding rank 1 CSI information.
- the rank 1 CSI information includes the RI, content required for constructing a precoding matrix with a rank rank of 1, and a channel quality indicator CQI corresponding to a codeword codeword; and if the terminal needs to report CSI-
- the RS resource indicates a CRI
- the rank 1 CSI information also includes a CRI.
- the content required for constructing the precoding matrix with a rank rank of 1 includes:
- the precoding matrix indicates the twiddle factor in the PMI, the beam selection in the PMI, the strongest coefficient of the first layer in the PMI, the wideband amplitude of the first layer in the PMI, the subband amplitude of the first layer in the PMI, and the PMI The first layer of the subband phase.
- the remaining CSI information includes a strongest coefficient of the second layer to the RI layer in the PMI, a broadband amplitude of the second layer to the RI layer in the PMI, and a sub-band of the second layer to the RI layer in the PMI.
- the amplitude, the sub-band phase of the second layer to the RI layer in the PMI, and the redundant codeword codeword correspond to the CQI.
- the first CSI information is the complete CSI information, including:
- the base station receives the first CSI information sent by the terminal through the first area, and further obtains the complete CSI information by using the first CSI information.
- embodiments of the present application can be provided as a method, system, or computer program product.
- the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
- the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
本申请公开了一种信道状态信息CSI反馈方法和资源分配方法及设备,包括:终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;所述终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
Description
本申请要求在2017年8月10日提交中国专利局、申请号为201710682202.2、申请名称为“一种信道状态信息CSI反馈方法和资源分配方法及设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及无线通信技术领域,尤其涉及一种信道状态信息CSI反馈方法和资源分配方法及设备。
在MIMO(Multiple-Input Multiple-Output,多输入多输出)系统中,终端需要上报CSI(Channel State Information,信道状态信息),CSI包括RI(Rank Indication,秩指示),PMI(Precoding Matrix Indicator,预编码矩阵指示),CQI(Channel Quality Indication,信道质量指示),还可能包含CSI-RS(Channel State Information Reference Signal,信道状态信息测量参考信号)资源指示CRI信息,为了使终端将CSI上报给基站用于基站调度,基站需要分配上行信道资源用于终端上报CSI,对于基站的某一码本配置,终端上报的CSI负载会随着RI的不同而动态变化。
NR(New RAT(radio access technology),新型无线接入技术)系统中定义了类型I码本和类型II码本,当基站为终端配置类型II码本,终端上报的CSI的负载会随着RI的不同,其负载开销的动态变化范围较大,若根据最大开销分配上行信息资源,则可能会导致资源的较大浪费;若分配的上行资源较小,则无法保证反馈的精度。
所以,现有技术中,针对NR系统中反馈动态范围较大的情况缺乏一个有效CSI反馈方法。
发明内容
本申请实施例提供一种信道状态信息CSI反馈方法和资源分配方法及设备,用于解决NR系统中反馈动态范围较大的情况缺乏一个有效CSI反馈方法的技术问题。
为此,本申请实施例提供一种信道状态信息CSI反馈方法,包括:
终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
所述终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,在所述秩1 CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一上行信道资源发送 给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
可选的,在所述RI的值为1时,包括:
所述终端将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
另一方面,本申请实施例还提供一种资源分配方法,包括:
基站为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;
所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;
在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述基站根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述基站为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
所述基站接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
另一方面,本申请实施例还提供一种终端,包括:
计算模块,用于使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
第一获取模块,用于获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
第二获取模块,用于获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,第二编码模块,用于在所述秩1 CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度,PMI中第一层的子带相位与所述CQI联合编码后通过所述第一上行信道资源发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,包括:第二编码模块,用于将所述PMI中第二层至第RI层的宽带幅度独立编码、PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
可选的,在所述RI的值为1时,包括:
发送模块,用于将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
另一方面,本申请实施例还提供一种基站设备,包括:
第一分配模块,用于为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;
确定模块,用于所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;
计算模块,用于在所述RI的值大于1时,所述第一CSI信息为所述CSI 信息中的秩1 CSI信息,根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
第二分配模块,用于为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括
模块,用于接收所述终端通过所述第一上行信道资源发送的所述第一CSI:
接收信息,进而获得完整的所述CSI信息。
另一方面,本申请实施例提供了一种终端,该终端主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
所述终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值 大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,在所述秩1 CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一上行信道资源发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
可选的,在所述RI的值为1时,所述终端将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
另一方面,本申请实施例提供了一种基站设备,基站设备主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
基站为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;
所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;
在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述基站根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述基站为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子,PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度,PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,所述基站接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
另一方面,本申请实施例还提供一种信道状态信息CSI反馈方法,包括:
终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,在所述秩1 CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度,PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
可选的,在所述RI的值为1时,包括:
所述终端将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
另一方面,本申请实施例还提供了一种资源分配方法,包括:
基站为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;
其中,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
所述基站接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
另一方面,本申请实施例还提供一种终端,包括:
计算单元,用于使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
获取单元,用于获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
第一发送单元,用于在所述RI的值大于1时,将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,所述终端还包括:
第一编码单元,用于在所述秩1 CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择,PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端还包括:
第二编码单元,用于将所述PMI中第二层至第RI层的宽带幅度独立编码、PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
可选的,在所述RI的值为1时,所述终端还包括:
第二发送单元,用于将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
再一方面,本申请实施例还提供一种基站设备,包括:
分配模块,用于为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
第一接收模块,用于在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;
其中,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述第二 CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数,PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,所述基站设备还包括:
第二接收模块,用于接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
另一方面,本申请实施例提供了一种终端,该终端主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在所述RI的值大于1时,将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得 完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,在所述秩1 CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
可选的,在所述RI的值为1时,包括:
所述终端将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
另一方面,本申请实施例提供了一种基站设备,该基站设备主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的 程序,按照该程序执行以下过程:
为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在CSI信息中RI的值大于1时,接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;
其中,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
所述基站接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
本申请实施例中的上述一个或多个技术方案,至少具有如下一种或多种技术效果:
1、在本申请实施例中,通过采用终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;以及所述 终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;以及所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息的技术方案。
也即在NR系统中,将终端需要反馈的CSI信息分解为秩1 CSI信息和剩余CSI信息,基站根据秩1 CSI信息和剩余CSI信息分别分配上行信道资源,终端分别上报秩1 CSI信息和剩余CSI信息,从而实现上行资源的有效分配和CSI信息的精确反馈。
2、本申请实施例中,通过采用终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;以及终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;以及在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息的技术方案。
也即在NR系统中,将终端需要反馈的CSI信息分解为秩1 CSI信息和剩余CSI信息,基站为终端分配的上行信道资源包括用于传输秩1 CSI信息的第一区域和用于传输用户数据的第二区域,进而使得终端通过上行信道资源中 的第一区域发送CSI信息中的秩1 CSI信息给基站,将上行信道资源中的第二区域中发送的部分用户数据替换成CSI信息中的剩余CSI信息,进而通过上行信道资源中的第二区域将剩余CSI信息发送给基站,从而实现上行资源的有效分配和CSI信息的精确反馈。
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例。
图1为本申请实施例一提供的一种信道状态信息CSI反馈方法的流程图;
图2为本申请实施例一提供的一种终端结构示意图;
图3为本申请实施例一提供的一种基站设备结构示意图;
图4为本申请实施例二提供的一种信道状态信息CSI反馈方法的流程图;
图5为本申请实施例二提供的一种终端结构示意图;
图6为本申请实施例二提供的一种基站设备结构示意图。
为使本申请实施例的目的、技术方案和优点更加清楚,下面将结合本申请实施例中的附图,对本申请的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请技术方案的一部分实施例,而不是全部的实施例。基于本申请文件中记载的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请技术方案保护的范围。
实施例一
请参考图1,本申请实施例中,提供的一种信道状态信息CSI反馈方法,包括以下步骤:
步骤S101:终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
步骤S102:终端获取基站为所述终端分配的第一上行信道资源,在所述 RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
步骤S103:所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
在具体实践过程中,本申请实施例首先执行步骤S101,也即终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI。
在新型无线接入NR系统中,基站可以为终端配置不同码本参数进而让终端能够使用基站为其配置的码本参数计算信道状态信息CSI,例如基站可以为终端配置类型II码本,进而终端可以使用基站为其配置的类型II码本计算CSI,获得CSI信息;基站还可以为终端配置类型I码本,进而终端可以使用基站为其配置的类型I码本计算CSI,获得CSI信息,其中,不同类型的码本也具有不同的端口数,例如,类型II码本包括32端口类型II码本,16端口类型II码本等,在本实施例中,具体以基站为终端配置32端口类型II码本为例,那么,终端就可以利用基站为终端配置的32端口类型II码本计算CSI,并获得CSI信息,该CSI信息中包括秩指示RI,其中,RI值为1,或RI大于1如为2等。
在实际应用中,当终端计算获得的CSI信息中的RI的值为1时,该CSI信息还可以包括构造秩rank为1的预编码矩阵所需要的内容,以及一个码字codeword对应的信道质量指示CQI,以及如果基站为终端配置了多于1个CSI-RS资源时,还应该包括CRI。在具体实践过程中,上述CSI信息中的RI,构造秩rank为1的预编码矩阵所需要的内容,以及一个码字codeword对应的 信道质量指示CQI,以及CRI(如果需要上报时)又称为该CSI信息的秩1 CSI信息。
在具体实践过程中,上述构造秩rank为1的预编码矩阵所需要的内容可以包括:预编码矩阵指示PMI中的旋转因子,PMI中的波束选择,PMI中的第一层的最强系数,PMI中的第一层的宽带幅度,PMI中的第一层的子带幅度,PMI中的第一层的子带相位。
当终端计算获得的CSI信息中的RI大于1时,该CSI信息除了可以包括上述秩1 CSI信息之外,还可以包括PMI中第二层至第RI层的最强系数,PMI中第二层至第RI层的宽带幅度,PMI中的第二层至第RI层的子带幅度以及PMI中第二层至第RI层的子带相位以及多余码字codeword的CQI。
例如,当RI的值为2时,该CSI信息还包括PMI中第二层的最强系数,PMI中第二层的宽带幅度,PMI中的第二层的子带幅度,PMI中第二层的子带相位以及多余码字codeword的CQI;当RI的值为3时,该CSI信息还可以包括PMI中第二层的最强系数和第三层的最强系数,PMI中第二层的宽带幅度和第三层的宽带幅度,PMI中第二层的子带幅度和第三层的子带幅度,以及PMI中第二层的子带相位,第三层的子带相位以及多余码字codeword的CQI。
本申请实施例在执行完步骤S101之后,就会执行步骤S102,也即终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
在具体实践过程中,终端会接收到基站为终端分配的第一上行信道资源,在实际应用中,基站会根据秩1 CSI信息的开销为终端分配第一上行信道资源,秩1 CSI信息为终端采用秩Rank为1的码本反馈时的CSI信息。
请参考表一和表二,这里假设基站只配置了一个32端口的CSI-RS资源, 即不需要CRI上报。基站配置了32端口类型II码本的波束合并个数L=3,反馈子带数为10,定义RI开销3比特,反馈子带数为10,系统预定义RI开销3比特,一个码字codeword对应的信道质量指示CQI也即每个子带的CQI为4比特,那么,根据表一和表二所示,可知,秩1 CSI信息的大小为RI+PMI+CQI=3+192+40=235比特,那么,基站就可以根据计算出的该秩1 CSI信息的大小为终端分配传输235比特信息所占用的第一上行信道资源用于终端反馈第一CSI信息。
表一32端口类型II码本的PMI反馈开销(宽带部分)
表二32端口类型II码本的PMI反馈开销(子带部分)
那么,终端在获得基站为其分配的传输235比特信息所占用的第一上行信道资源后,终端为会根据终端在计算获得的CSI信息中RI的取值情况,决定是将完整的CSI信息作为第一CSI信息通过基站分配的传输235比特信息 所占用的第一上行信道资源发送给基站,还是将终端计算获得的CSI信息中的秩1 CSI信息作为第一CSI信息通过基站分配的传输235比特信息所占用的第一上行信道资源发送给基站。
具体的,当RI大于1如RI取值为2时,那么,终端就会将计算获得的CSI信息中的秩1 CSI信息作为第一CSI信息,通过基站分配的传输235比特信息所占用的第一上行信道资源发送给基站,在实际应用中,终端在通过上述第一上行信道资源发送第一CSI信息时可以将第一CSI信息也即秩1 CSI信息中的RI与PMI中第一层的宽带幅度作组合成一个部分进行编码,将PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI组合成一个部分进行编码后,再通过第一上行信道资源发送给所述基站。
当然,终端还可以将第一CSI信息也即秩1 CSI信息中的RI,PMI中第一层的宽带幅度,PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI作为成一个整体编码,再通过第一上行信道资源发送给所述基站。
可以理解的是,在其他应用情况下,若秩1 CSI信息中还包括CRI,那么,在实际应用中,还可以将秩1 CSI信息中的RI,PMI中第一层的宽带幅度,PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI作为成一个整体编码,再通过第一上行信道资源发送给所述基站;或将CRI,RI与PMI中第一层的宽带幅度作组合成一个部分进行编码,将PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI组合成一个部分进行编码后,再通过第一上行信道资源发送给所述基站。
在本实施例中,具体以终端将秩1 CSI信息中的RI与PMI中第一层的宽带幅度作组合成一个部分进行编码,将PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带 相位与CQI组合成一个部分进行编码后,再通过第一上行信道资源发送给所述基站为例。
那么,基站就会接收到终端使用第一上行信息资源发送的秩1 CSI信息,该秩1 CSI信息中包括了终端计算获得的CSI信息中的RI,那么,基站就可以从接收到的秩1 CSI信息确定出RI,并根据RI的取值计算终端侧发送CSI信息所需的总上行信道资源。
请参考上述表一和表二,在RI取值具体为2时,基站在考虑RI的开销3比特,若32端口类型II码本中无论rank=1时或rank=2时均只有一个码字codeword,该一个码字codeword对应信道质量指示CQI,每个子带CQI为4比特,10个子带的CQI开销就为40比特,则RI取值具体为2时,基站计算终端发送总的CSI信息需要RI+PMI+CQI=3+370+40=413比特。
若32端口类型II码本中rank=1对应一个codeword,每个子带的CQI为4比特;而rank=1时有一个码字codeword,rank=2时有两个码字codeword,则每个子带包括两个CQI,分别为第一codeword对应的CQI1为4比特,第二codeword对应的CQI2为3比特,每个子带包括CQI1和CQI2共7比特。考虑RI的开销3比特、10个子带的CQI开销为70比特,则RI取值具体为2时,基站计算终端发送总的CSI信息需要RI+PMI+CQI=3+370+70=443比特。
具体的,以32端口类型II码本中无论rank=1时或rank=2时均只有一个码字codeword,且基站计算终端发送总的CSI信息需要RI+PMI+CQI=3+370+40=413比特为例。
由于基站已经给终端配置了传输235比特信息所占用的第一上行信道资源用于发送CSI信息中的第一CSI信息,那么,基站根据总CSI开销413比特,和第一次CSI信息上报的开销也即终端发送第一CSI信息使用的235比特,计算出终端发送CSI信息中剩余的CSI信息的开销为413-235=178比特。那么,基站根据传输此178比特CSI开销所占用的资源为终端分配第二上行信道资源用于反馈第一次未上报的CSI信息也即CSI信息中剩余的CSI信息。
具体的,以32端口类型II码本中rank=1对应一个codeword,每个子带 的CQI为4比特,而rank=1时有一个码字codeword,rank=2时有两个码字codeword,且基站计算终端发送总的CSI信息需要RI+PMI+CQI=3+370+70=443比特为例。
由于基站已经给终端配置了传输235比特信息所占用的第一上行信道资源用于发送CSI信息中的第一CSI信息,那么,基站根据总CSI开销443比特,和第一次CSI信息上报的开销也即终端发送第一CSI信息使用的235比特,计算出终端发送CSI信息中剩余的CSI信息的开销所占用的资源为443-235=208比特。那么,基站根据传输此208比特CSI开销为终端分配第二上行信道资源用于反馈第一次未上报的CSI信息也即CSI信息中剩余的CSI信息。
本申请实施例在执行完步骤S102之后,就会执行步骤S103,也即所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
具体的,终端在接收到基站为终端分配的传输178比特信息所占用的第二上行信道资源后,就将CSI信息中为反馈的第二CSI信息也即CSI信息中除去秩1 CSI信息的剩余CSI信息通过传输178比特信息所占用的第二上行信道资源发送给基站,在实际应用中,终端在通过第二上行信道资源发送第二CSI信息也即CSI信息中除去秩1 CSI信息的剩余CSI信息时,可以将第二CSI信息中的PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度,PMI中第二层至第RI层的子带相位组合成一个部分进行编码后,再通过所述第二上行信道资源发送给所述基站。
终端也可以将第二CSI信息中的PMI中第二层至第RI层的宽带幅度与PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度,PMI中第二层至第RI层的子带相位作为一个整体进行编码后,通过所述第二上行信道资源发送给所述基站。
在本实施例中,具体以将第二CSI信息中的PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度以及PMI中第二层至第RI层的子带相位组合成一个部分进行编码后,再通过所述第二上行信道资源发送给所述基站为例,那么,基站在接收到终端利用该第二上行信道资源发送的第二CSI信息后,就可以将之前接收的第一CSI信息和本次接收的第二CSI信息进行合并,进而获得完整的CSI信息。
具体的,终端在接收到基站为终端分配的传输208比特信息所占用的第二上行信道资源后,就将CSI信息中为反馈的第二CSI信息也即CSI信息中除去秩1 CSI信息的剩余CSI信息通过传输208比特信息所占用的第二上行信道资源发送给基站,在实际应用中,终端在通过第二上行信道资源发送第二CSI信息也即CSI信息中除去秩1 CSI信息的剩余CSI信息时,可以将第二CSI信息中的PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度,PMI中第二层至第RI层的子带相位以及剩余1个码字codeword对应的CQI组合成一个部分进行编码后,再通过所述第二上行信道资源发送给所述基站。
所以,通过上述方法,在NR系统中,将终端需要反馈的CSI信息分解为秩1 CSI信息和剩余CSI信息。基站根据秩1 CSI信息和剩余CSI信息分别分配上行信道资源,终端分别上报秩1 CSI信息和剩余CSI信息,从而实现上行资源的有效分配和CSI信息的精确反馈。
当然,在实际应用中,也会存在终端计算获得的CSI信息中的RI的值为1的情况,这时,终端计算获得的CSI信息就只会有秩1 CSI信息这部分,那么,终端在接收到基站为其分配的第一上行信道时,就可以将完整的CSI信息作为所述第一CSI信息通过第一上行信道传输给基站,
在本申请实施例中,基站为终端分配的第一上行信道是根据秩1 CSI信息的开销来端分配的,比如基站配置了32端口类型II码本的波束合并个数L=3,反馈子带数为10,定义RI开销3比特,反馈子带数为10,系统预定义RI开 销3比特,一个码字codeword对应的信道质量指示CQI也即每个子带的CQI为4比特,那么,根据上述表一和表二所示可知,秩1 CSI信息的大小为RI+PMI+CQI=3+192+40=235比特,那么,基站就可以根据计算出的该秩1 CSI信息的大小为终端分配传输235信息所占用比特的第一上行信道资源用于终端反馈第一CSI信息。
而在终端计算获得的CSI信息中的RI的值为1的情况下,这时,终端计算获得的CSI信息就只会有秩1 CSI信息这部分,该秩1 CSI信息也为235比特,那么,终端就可以将其大小为235比特秩1 CSI信息,通过传输235比特信息所占用的第一上行信道资源发送给基站,进而实现上行资源的有效分配和CSI信息的精确反馈。
基于同一发明构思,本申请实施例中提供了一种资源分配方法,该资源分配方法应用于基站侧,该方法的具体实施可参见上述应用于终端侧的方法实施例部分的描述,重复之处不再赘述,该方法包括:
基站为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;
所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;
在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述基站根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述基站为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数,PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
所述基站接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
基于同一发明构思,本申请实施例中提供了一种终端,该终端的信道状态信息CSI反馈方法的具体实施可参见方法实施例部分的描述,重复之处不再赘述,请参考图2,该终端主要包括:
计算模块10,用于使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
第一获取模块11,用于获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
第二获取模块12,用于获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵 所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,第二编码模块,用于在所述秩1 CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码、以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一上行信道资源发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,第二编码模块,用于将所述PMI中第二层至第RI层的宽带幅度独立编码、将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
可选的,在所述RI的值为1时,包括:
发送模块,用于将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
基于同一发明构思,本申请实施例中提供了一种基站设备,该基站设备的资源分配方法的具体实施可参见方法实施例部分的描述,重复之处不再赘述,请参考图3,该基站设备主要包括:
第一分配模块21,用于为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确 定;
确定模块22,用于所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;
计算模块23,用于在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
第二分配模块24,用于为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
接收模块,用于接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
基于同一发明构思,本申请实施例提供了一种终端,该终端实现信道状态信息CSI反馈方法的具体实施可参见方法实施例部分的描述,重复之处不 再赘述,该终端主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
所述终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,在所述秩1 CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一上行信道资源发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI 中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
可选的,在所述RI的值为1时,所述终端将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
基于同一发明构思,本申请实施例提供了一种基站设备,该基站设备实现资源分配方法的具体实施可参见方法实施例部分的描述,重复之处不再赘述,该基站设备主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
基站为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;
所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;
在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述基站根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;
所述基站为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,所述基站接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
实施例二
请参考图4,为本申请实施例提供的另一种信道状态信息CSI反馈方法,包括:
步骤S201:终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
步骤S202:终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
步骤S203:在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
在具体实践过程中,本申请实施例二提供的另一种信道状态信息CSI反馈方法首先执行步骤S201,也即终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI。
在新型无线接入NR系统中,基站可以为终端配置不同码本参数进而让终端能够使用基站为其配置的码本参数计算信道状态信息CSI,例如基站可以为终端配置类型II码本,进而终端可以使用基站为其配置的类型II码本计算CSI,获得CSI信息;基站还可以为终端配置类型I码本,进而终端可以使用基站为其配置的类型I码本计算CSI,获得CSI信息,其中,不同类型的码本也具有不同的端口数,例如,类型II码本包括32端口类型II码本,16端口类型II码本等,在本实施例中,具体以基站为终端配置32端口类型II码本为例,那么,终端就可以利用基站为终端配置的32端口类型II码本计算CSI,并获得CSI信息,该CSI信息中包括秩指示RI,其中,RI值为1,或RI大于1如为2等。
在实际应用中,当终端计算获得的CSI信息中的RI的值为1时,该CSI信息还可以包括构造秩rank为1的预编码矩阵所需要的内容,以及一个码字codeword对应的信道质量指示CQI,且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI,在本实施例中,假设基站只配置了1个32端口CSI-RS资源,此时不需要上报CRI。
在具体实践过程中,上述CSI信息中的RI,构造秩rank为1的预编码矩阵所需要的内容,以及一个码字codeword对应的信道质量指示CQI又称为该CSI信息的秩1 CSI信息。
在具体实践过程中,上述构造秩rank为1的预编码矩阵所需要的内容可以包括:预编码矩阵指示PMI中的旋转因子,PMI中的波束选择,PMI中的第一层的最强系数,PMI中的第一层的宽带幅度,PMI中的第一层的子带幅度,PMI中的第一层的子带相位。
当终端计算获得的CSI信息中的RI大于1时,该CSI信息除了可以包括上述秩1 CSI信息之外,还可以包括PMI中第二层至第RI层的最强系数,PMI中第二层至第RI层的宽带幅度,PMI中的第二层至第RI层的子带幅度以及PMI中第二层至第RI层的子带相位,若存在多余码字codeword,那么,该CSI信息还可以包括多余码字codeword的CQI。
例如,当RI的值为2时,该CSI信息还包括PMI中第二层的最强系数,PMI中第二层的宽带幅度,PMI中的第二层的子带幅度,PMI中第二层的子带相位以及多余码字codeword的CQI;当RI的值为3时,该CSI信息还可以包括PMI中第二层的最强系数和第三层的最强系数,PMI中第二层的宽带幅度和第三层的宽带幅度,PMI中第二层的子带幅度和第三层的子带幅度,以及PMI中第二层的子带相位,第三层的子带相位以及多余码字codeword的CQI。
本申请实施例在执行完步骤S201之后,就会执行步骤S202,也即终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域。
在具体实践过程中,终端会接收到基站为终端分配的上行信道资源,在本实施例中,基站为终端分配的上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域。
在具体实践过程中,基站可以根据秩1 CSI信息的开销设定基站为终端分配的上行信道资源中的第一区域的大小,秩1 CSI信息为终端采用秩Rank为1的码本反馈时的CSI信息。
这里请参考实施例一中的表一和表二,这里假设基站配置了32端口类型II码本的波束合并个数L=3,32端口类型II码本中无论rank=1时或rank=2时均只有一个码字codeword,反馈子带数为10,定义RI开销3比特,反馈子带数为10,系统预定义RI开销3比特,一个码字codeword对应的信道质量指示CQI也即每个子带的CQI为4比特,那么,根据表一和表二所示,可知,秩1 CSI信息的大小为RI+PMI+CQI=3+192+40=235比特,那么,基站就可以根据计算出的该秩1 CSI信息的大小来设定上行信道资源中的第一区域的大小为传输235比特信息所占用的资源,那么,上行信道资源中大小为传输235比特信息所占用的资源大小的第一区域就可以用于终端反馈第一CSI信息。
在具体实践过程中,基站可以根据终端向基站发送用户数据发送请求中 所指示的上行待传数据的大小,来设定上行信道资源中用于传输用户数据的第二区域的大小,例如,当终端向基站发送用户数据发送请求中所指示的上行待传数据的大小为500比特时,基站就可以将上行信道资源中的用于传输用户数据的第二区域的而大小设置为传输500比特信息所占用的资源,这时,基站给终端分配的上行信道资源的大小就为传输500比特数据所占用的资源大小与传输235比特信息所占用的资源大小之和。
当终端向基站发送用户数据发送请求中所指示的上行待传数据的大小为800比特时,基站就可以将上行信道资源中的用于传输用户数据的第二区域的而大小设置为传输800比特数据所占用的资源大小,这时,基站给终端分配的上行信道资源的大小就为传输800比特数据所占用的资源大小与传输235比特信息所占用的资源大小之和。
在本实施例中,具体以终端向基站发送用户数据发送请求中所指示的上行待传数据的大小为500比特为例,基站给终端分配的上行信道资源的大小就为传输500比特数据所占用的资源大小与传输235比特信息所占用的资源大小之和,包括用于传输第一CSI信息的第一区域的大小为传输235比特信息所占用的资源大小,用于传输用户数据的第二区域的大小就为传输500比特数据所占用的资源大小,那么,终端接收到基站发送的该上行信道资源后就会执行步骤S203:
在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
具体的,当终端计算获得的CSI信息中的RI大于1如RI为2时,终端接收到基站发送的该上行信道资源后,就会将CSI信息中的秩1 CSI信息作为 第一CSI信息通过接收到的上行信道资源中第一区域发送给基站。
终端在通过上行信道资源中第一区域发送第一CSI信息时,可以将第一CSI信息也即秩1 CSI信息中的RI与PMI中第一层的宽带幅度作组合成一个部分进行编码,将PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI组合成一个部分进行编码后,再通过上行信道资源中第一区域发送给所述基站。
当然,终端还可以将第一CSI信息也即秩1 CSI信息中的RI,PMI中第一层的宽带幅度,PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI作为成一个整体编码,再通过上行信道资源中第一区域发送给所述基站,在本实施例中,具体以终端将秩1 CSI信息中的RI与PMI中第一层的宽带幅度作组合成一个部分进行编码,将PMI中旋转因子,PMI中波束选择,PMI中第一层的最强系数,PMI中第一层的子带幅度,PMI中第一层的子带相位与CQI组合成一个部分进行编码后,再通过上行信道资源中第一区域发送给所述基站为例。
同时,终端还会将计算获得的CSI信息除了秩1 CSI信息之外的剩余CSI信息作为第二CSI信息,替换掉上行信道资源中第二区域中部分用户数据,也即上行信道资源中第二区域原本时用来传输用户数据的,但在终端计算获得的CSI信息中的RI大于1时,该CSI信息包括秩1 CSI信息以及CSI信息中除了秩1 CSI信息之外的剩余CSI信息这两部分,这时,终端就会将行信道资源中第二区域中部分用户数据替换成剩余CSI信息,此时,上行信道资源中第二区域传输的内容就包括剩余CSI信息以及另一部分未被替换的用户数据。
例如,当CSI信息除了秩1 CSI信息之外的剩余CSI信息为178比特,那么,终端就会将行信道资源中第二区域中传输178比特信息所占用的资源的部分用户数据替换成剩余CSI信息,此时,上行信道资源中第二区域传输的内容就包括传输178比特的剩余CSI信息所占用的资源以及另一部分未被 替换的用户数据所占用的资源。
那么,终端就可以利用该上行信道资源中第二区域将CSI信息中除了秩1 CSI信息之外的剩余CSI信息也即第二CSI信息发送给基站,在实际应用中,终端在通过上行信道资源中第二区域发送第二CSI信息也即CSI信息中除去秩1 CSI信息的剩余CSI信息时,可以将第二CSI信息中的PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度,PMI中第二层至第RI层的子带相位组合成一个部分进行编码后,再通过上行信道资源中第二区域发送给所述基站。
终端也可以将第二CSI信息中的PMI中第二层至第RI层的宽带幅度与PMI中第二层至第RI层的最强系数,PMI中的第二层至第RI层的子带幅度,PMI中第二层至第RI层的子带相位以及作为一个整体进行编码后,通过上行信道资源中第二区域发送给所述基站。
那么,基站在接收终端利用上行信道资源第一区域发送的第一CSI信息以及接收到利用上行信道资源发的第二CSI信息之后,就可以将第一CSI信息与第二CSI信息进行合并获得完整的CSI信息。
所以通过上述方法,在NR系统中,将终端需要反馈的CSI信息分解为秩1 CSI信息和剩余CSI信息,基站为终端分配的上行信道资源包括用于传输秩1 CSI信息的第一区域和用于传输用户数据的第二区域,进而使得终端通过上行信道资源中的第一区域发送CSI信息中的秩1 CSI信息给基站,将上行信道资源中的第二区域中发送的部分用户数据替换成CSI信息中的剩余CSI信息,进而通过上行信道资源中的第二区域将剩余CSI信息发送给基站,从而实现上行资源的有效分配和CSI信息的精确反馈。
当然,在实际应用中,也会存在终端计算获得的CSI信息中的RI的值为1的情况,这时,终端计算获得的CSI信息就只会有秩1 CSI信息这部分,那么,终端在接收到基站为其分配的上行资源信道时,就可以将完整的CSI信息作为第一CSI信息通过上行信道资源中的第一区域传输给基站,进而使得基站通过该第一CSI信息接收到完整的CSI信息。
基于同一发明构思,本申请实施例中提供了一种资源分配方法,该方法应用于基站侧,该方法的具体实施可参见上述应用于终端侧的方法实施例部分的描述,重复之处不再赘述,该方法包括:
基站为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;
其中,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
所述基站接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
基于同一发明构思,本申请实施例中提供了一种终端,该终端的信道状态信息CSI反馈方法的具体实施可参见方法实施例部分的描述,重复之处不 再赘述,请参考图5,该基站设备主要包括:
计算单元30,用于使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
获取单元31,用于获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
第一发送单元32,用于在所述RI的值大于1时,将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,所述终端还包括:
第一编码单元,用于在所述秩1 CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择,PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI 中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端还包括:第二编码单元,用于将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
可选的,在所述RI的值为1时,所述终端还包括:
第二发送单元,用于将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
基于同一发明构思,本申请实施例中提供了一种基站设备,该基站设备的资源分配方法的传输方法的具体实施可参见方法实施例部分的描述,重复之处不再赘述,请参考图6,该基站设备主要包括:
分配模块40,用于为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
第一接收模块41,用于在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;
其中,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,所述基站设备还包括:
第二接收模块,用于接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
本申请实施例中的上述一个或多个技术方案,至少具有如下一种或多种技术效果:
1、在本申请实施例中,通过采用终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;以及所述终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息;以及所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息的技术方案。
也即在NR系统中,将终端需要反馈的CSI信息分解为秩1 CSI信息和剩余CSI信息,基站根据秩1 CSI信息和剩余CSI信息分别分配上行信道资源,终端分别上报秩1 CSI信息和剩余CSI信息,从而实现上行资源的有效分配和CSI信息的精确反馈。
2、本申请实施例中,通过采用终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;以及终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;以及在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息的技术方案。
也即在NR系统中,将终端需要反馈的CSI信息分解为秩1 CSI信息和剩余CSI信息,基站为终端分配的上行信道资源包括用于传输秩1 CSI信息的第一区域和用于传输用户数据的第二区域,进而使得终端通过上行信道资源中的第一区域发送CSI信息中的秩1 CSI信息给基站,将上行信道资源中的第二区域中发送的部分用户数据替换成CSI信息中的剩余CSI信息,进而通过上行信道资源中的第二区域将剩余CSI信息发送给基站,从而实现上行资源的有效分配和CSI信息的精确反馈。
基于同一发明构思,本申请实施例提供了一种终端,该终端实现信道状态信息CSI反馈方法的具体实施可参见方法实施例部分的描述,重复之处不再赘述,该终端主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;
终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在所述RI的值大于1时,所述终端将所述CSI信息中的秩1 CSI信息作 为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
可选的,在所述秩1 CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择,PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
可选的,在所述RI的值为1时,包括:
所述终端将所述CSI信息作为所述第一CSI信息通过所述第一区域发送 给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
基于同一发明构思,本申请实施例提供了一种基站设备,该基站设备实现资源分配方法的具体实施可参见方法实施例部分的描述,重复之处不再赘述,该基站设备主要包括处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:
基站为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;
在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;
其中,所述第一CSI信息为所述CSI信息中的秩1 CSI信息,所述第二CSI信息为所述CSI信息中除去秩1 CSI信息的剩余CSI信息。
可选的,所述秩1 CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1 CSI信息还包括CRI。
可选的,所述构造秩rank为1的预编码矩阵所需要的内容包括:
预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
可选的,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
可选的,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:
所述基站接收终端通过所述第一区域发送的所述第一CSI信息,进而通 过所述第一CSI信息获得完整的所述CSI信息。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。
Claims (65)
- 一种信道状态信息CSI反馈方法,其特征在于,包括:终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;所述终端获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息;所述终端获取所述第二上行信道资源,并通过所述第二上行信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
- 如权利要求1所述的方法,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求2所述的方法,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
- 如权利要求3所述的方法,其特征在于,在所述秩1CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后 通过所述第一上行信道资源发送给所述基站。
- 如权利要求1所述的方法,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求5所述的方法,其特征在于,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
- 如权利要求1中所述的方法,其特征在于,在所述RI的值为1时,包括:所述终端将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
- 一种资源分配方法,其特征在于,包括:基站为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1CSI信息,所述基站根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息;所述基站为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
- 如权利要求8所述的方法,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求9所述的方法,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度、PMI中的第一层的子带相位。
- 如权利要求8所述的方法,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求8所述的方法,其特征在于,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:所述基站接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
- 一种终端,其特征在于,包括:计算模块,用于使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;第一获取模块,用于获取基站为所述终端分配的第一上行信道资源,在所述RI的值大于1时,所述终端将所述CSI信息中的秩1CSI信息作为第一CSI信息并通过所述第一上行信道资源发送给所述基站,以使得所述基站能够根据所述第一CSI信息为所述终端分配用于传输第二CSI信息的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息;第二获取模块,用于获取所述第二上行信道资源,并通过所述第二上行 信道资源向所述基站发送所述第二CSI信息,以便所述基站在接收到所述第二CSI信息后,将所述第一CSI信息与所述第二CSI信息进行合并进而获得完整的所述CSI信息。
- 如权利要求13所述的终端,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求14所述的终端,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
- 如权利要求13所述的终端,其特征在于,包括:第二编码模块,用于在所述秩1CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一上行信道资源发送给所述基站。
- 如权利要求13所述的终端,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求13所述的终端,其特征在于,包括:第二编码模块,用于将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码后通过所述第二上行信道资源发送给所述基站。
- 如权利要求13中所述的终端,其特征在于,在所述RI的值为1时,包括:发送模块,用于将所述CSI信息作为所述第一CSI信息通过所述第一上行信道资源发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
- 一种基站设备,其特征在于,包括:第一分配模块,用于为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;确定模块,用于所述基站根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;计算模块,用于在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1CSI信息,根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息;第二分配模块,用于为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
- 如权利要求20所述的基站设备,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求21所述的基站设备,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数,PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
- 如权利要求20所述的基站设备,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求20所述的基站设备,其特征在于,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:接收模块,用于接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
- 一种信道状态信息CSI反馈方法,其特征在于,包括:终端使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;终端获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;在所述RI的值大于1时,所述终端将所述CSI信息中的秩1CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息。
- 如权利要求25所述的方法,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求26所述的方法,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层 的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
- 如权利要求27所述的方法,其特征在于,在所述秩1CSI信息包括CRI时,所述终端将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
- 如权利要求25所述的方法,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求29所述的方法,其特征在于,所述终端将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
- 如权利要求25中所述的方法,其特征在于,在所述RI的值为1时,包括:所述终端将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
- 一种资源分配方法,其特征在于,包括:基站为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将 所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;其中,所述第一CSI信息为所述CSI信息中的秩1CSI信息,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息。
- 如权利要求32所述的方法,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求33所述的方法,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
- 如权利要求32所述的方法,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求32所述的方法,其特征在于,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:所述基站接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
- 一种终端,其特征在于,包括:计算单元,用于使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;获取单元,用于获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;第一发送单元,用于在所述RI的值大于1时,将所述CSI信息中的秩1CSI 信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息。
- 如权利要求37所述的终端,其特征在于,所述秩1CSI信息包括所述RI,构造秩rank为1的预编码矩阵所需要的内容,以及一个码字codeword对应的信道质量指示CQI,且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求38所述的终端,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
- 如权利要求39所述的终端,其特征在于,包括:第一编码单元,用于在所述秩1CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
- 如权利要求37所述的终端,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求41所述的终端,其特征在于,包括:第二编码单元,用于将所述PMI中第二层至第RI层的宽带幅度独立编码, 将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
- 如权利要求37中所述的终端,其特征在于,在所述RI的值为1时,包括:第二发送单元,用于将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
- 一种基站设备,其特征在于,包括:分配模块,用于为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;第一接收模块,用于在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;其中,所述第一CSI信息为所述CSI信息中的秩1CSI信息,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息。
- 如权利要求44所述的基站设备,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求45所述的基站设备,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
- 如权利要求44所述的基站设备,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求44所述的基站设备,其特征在于,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:第二接收模块,用于接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
- 一种基站设备,其特征在于,包括:处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:为终端分配用于传输第一CSI信息的第一上行信道资源,所述第一上行信道资源由所述基站为所述终端配置的码本参数所确定;根据所述终端通过所述第一上行信道资源发送的第一CSI信息中RI的值,确定所述终端发送所述CSI信息所需的总上行信道资源;在所述RI的值大于1时,所述第一CSI信息为所述CSI信息中的秩1CSI信息,根据所述总上行信道资源与发送所述第一CSI信息已使用的所述第一上行信道资源,计算得到所述终端发送第二CSI信息所需的第二上行信道资源,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息;为所述终端分配所述第二上行信道资源,以使得所述终端能够利用所述第二上行信道资源发送所述第二CSI信息。
- 如权利要求49所述的基站设备,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求50所述的基站设备,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一 层的最强系数,PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
- 如权利要求49所述的基站设备,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求49所述的基站设备,其特征在于,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,包括:接收所述终端通过所述第一上行信道资源发送的所述第一CSI信息,进而获得完整的所述CSI信息。
- 一种终端,其特征在于,包括:处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:使用基站配置的码本参数计算信道状态信息CSI,并获得CSI信息,所述CSI信息中包括秩指示RI;获取所述基站为所述终端分配的上行信道资源,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;在所述RI的值大于1时,将所述CSI信息中的秩1CSI信息作为所述第一CSI信息并通过所述第一区域发送给所述基站;将第二区域中待传输的部分用户数据替换成第二CSI信息,以便通过所述第二区域将所述第二CSI信息发送给所述基站,进而使得所述基站在接收到所述第一CSI信息与所述第二CSI信息后,能够将所述第一CSI信息与所述第二CSI信息进行合并获得完整的所述CSI信息,其中,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息。
- 如权利要求54所述的终端,其特征在于,所述秩1CSI信息包括所述RI,构造秩rank为1的预编码矩阵所需要的内容,以及一个码字codeword对应的信道质量指示CQI,且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求55所述的终端,其特征在于,所述构造秩rank为1的预 编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中第一层的最强系数、PMI中第一层的宽带幅度、PMI中第一层的子带幅度以及PMI中第一层的子带相位。
- 如权利要求56所述的终端,其特征在于,包括:第一编码单元,用于在所述秩1CSI信息包括CRI时,将所述CRI、所述RI与所述PMI中第一层的宽带幅度联合编码,以及将所述PMI中旋转因子、PMI中波束选择、PMI中第一层的最强系数、PMI中第一层的子带幅度、PMI中第一层的子带相位与所述CQI联合编码后通过所述第一区域发送给所述基站。
- 如权利要求54所述的终端,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求58所述的终端,其特征在于,所述处理器还用于:将所述PMI中第二层至第RI层的宽带幅度独立编码,将PMI中第二层至第RI层的最强系数、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI联合编码作为所述第二CSI信息,通过所述第二区域发送给所述基站。
- 如权利要求54中所述的终端,其特征在于,在所述RI的值为1时,所述处理器还用于:将所述CSI信息作为所述第一CSI信息通过所述第一区域发送给所述基站,以使得所述基站通过所述第一CSI信息接收到完整的所述CSI信息。
- 一种基站设备,其特征在于,包括:处理器和存储器,其中,存储器中保存有预设的程序,处理器读取存储器中的程序,按照该程序执行以下过程:为终端分配上行信道资源,所述上行信道资源由基站为终端配置的码本 参数所确定,所述上行信道资源包括用于传输第一CSI信息的第一区域和用于传输用户数据的第二区域;在CSI信息中RI的值大于1时,所述基站接收终端通过所述第一区域发送的第一CSI信息以及接收终端在第二区域上发送的第二CSI信息,进而将所述第一CSI信息和所述第二CSI信息合并得到完整的CSI信息;其中,所述第一CSI信息为所述CSI信息中的秩1CSI信息,所述第二CSI信息为所述CSI信息中除去秩1CSI信息的剩余CSI信息。
- 如权利要求61所述的基站设备,其特征在于,所述秩1CSI信息包括所述RI、构造秩rank为1的预编码矩阵所需要的内容、以及一个码字codeword对应的信道质量指示CQI;且若所述终端需要上报CSI-RS资源指示CRI,所述秩1CSI信息还包括CRI。
- 如权利要求62所述的基站设备,其特征在于,所述构造秩rank为1的预编码矩阵所需要的内容包括:预编码矩阵指示PMI中的旋转因子、PMI中的波束选择、PMI中的第一层的最强系数、PMI中的第一层的宽带幅度、PMI中的第一层的子带幅度以及PMI中的第一层的子带相位。
- 如权利要求61所述的基站设备,其特征在于,所述剩余CSI信息包括PMI中第二层至第RI层的最强系数、PMI中第二层至第RI层的宽带幅度、PMI中的第二层至第RI层的子带幅度、PMI中第二层至第RI层的子带相位以及多余码字codeword对应CQI。
- 如权利要求61所述的基站设备,其特征在于,在所述RI的值为1时,所述第一CSI信息为完整的所述CSI信息,所述处理器还用于:接收终端通过所述第一区域发送的所述第一CSI信息,进而通过所述第一CSI信息获得完整的所述CSI信息。
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