CN112702289B - Information processing method and device, terminal, base station and storage medium - Google Patents
Information processing method and device, terminal, base station and storage medium Download PDFInfo
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Abstract
The embodiment of the application provides an information processing method and device, a terminal, a base station and a storage medium, wherein the information processing method can be used for sequentially carrying out coarse channel estimation on resources of a plurality of ports contained in a current channel state information reference signal after the terminal receives a CSI-RS (channel state information-reference signal) sent by the base station, and caching corresponding coarse channel estimation information to a coarse channel storage unit. After the coarse channel storage unit caches one complete port data, the coarse channel storage unit performs second channel estimation on the first channel estimation information corresponding to the corresponding port resource, and caches the corresponding channel estimation information to the channel estimation storage unit. And after the channel estimation storage unit caches one complete port data, performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resources, and caching the corresponding noise estimation information to the noise estimation storage unit. Through the streamlined processing flow, the processing time can be shortened, and the processing efficiency can be improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information processing method and apparatus, a terminal, and a storage medium.
Background
The terminal estimates Channel related Information by receiving a Channel State Information Reference Signal (CSI-RS) sent by the base station, calculates Channel State Information (CSI) adapting to the self receiving capability and feeds back the CSI to the base station. The base station adjusts the downlink data sending mode to achieve a better communication process between the base station and the terminal, and achieve better communication quality.
For the CSI-RS resource, the terminal needs to sequentially perform coarse Channel estimation (Raw CE), channel Estimation (CE), and Noise Estimation (NE) to achieve Channel estimation and Noise estimation of the current Channel. Then, the CPR module calculates the optimal information such as Channel Quality Indicator (CQI), precoding Matrix Indicator (PMI), rank Indicator (RI), and the like, and reports the information to the base station. Fig. 1 is a processing flow of CSI-RS in the prior art, and as shown in fig. 1, the processing flow includes:
and the Raw CE processing module is used for sequentially processing the coarse channel estimation values of all the CSI-RS resources and storing the coarse channel estimation values into a coarse channel estimation Raw CE storage unit.
And the CE processing module is used for reading the storage space of the coarse channel estimation Raw CE, carrying out channel estimation and storing the output channel estimation H into the channel estimation unit.
And the NE processing module is used for reading the rough channel estimation Raw CE storage unit and the channel estimation H storage unit at the same time, carrying out noise estimation correlation technique and storing the output noise estimation into the noise estimation Rn storage unit.
And 4, the CPR calculating module reads data from the channel estimation H storage unit and the noise estimation Rn storage unit simultaneously and calculates CPR reporting content.
The calculation of each module in the processing flow shown in fig. 1 is completely serial processing, and the total calculation time is the sum of the time calculated by each module, which leads to a problem that the processing time is too long.
Disclosure of Invention
The embodiment of the application provides an information processing method and device, a terminal, a base station and a storage medium, wherein the information processing method can sequentially perform first channel estimation (coarse channel estimation) on resources of a plurality of ports contained in a current channel state information reference signal after the terminal receives the channel state information reference signal (CSI-RS) sent by the base station, and cache corresponding coarse channel estimation information to a coarse channel storage unit. After the coarse channel storage unit caches one complete port data (complete coarse channel estimation information corresponding to one port resource), the coarse channel storage unit performs second channel estimation on the first channel estimation information corresponding to the corresponding port resource and caches the corresponding channel estimation information to the channel estimation storage unit. After the channel estimation storage unit caches one complete port data (complete channel estimation information corresponding to one port resource), noise estimation is performed on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resources, and corresponding noise estimation information is cached in the noise estimation storage unit. Through the streamlined processing flow, the processing time can be shortened, and the processing efficiency can be improved.
In a first aspect, an embodiment of the present application provides an information processing method, including:
acquiring a channel state information reference signal sent by a base station;
sequentially performing first channel estimation on a plurality of port resources contained in a current channel state information reference signal, wherein performing the first channel estimation on one port resource each time comprises: acquiring first channel estimation information corresponding to a port resource, storing the acquired first channel estimation information corresponding to the corresponding port resource in a first cache unit, and generating a first signal reflecting the completion of storage, wherein the first signal comprises identification information of the corresponding port;
triggering and executing a process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource based on the first signal, wherein the process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time comprises the following steps: acquiring second channel estimation information corresponding to the corresponding port resource according to the first channel estimation information corresponding to the corresponding port resource, storing the second channel estimation information corresponding to the corresponding port resource in a second cache unit, and generating a second signal reflecting the completion of storage, wherein the second signal comprises identification information of the corresponding port; and
triggering and executing a process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource based on the second signal, where the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time includes: and acquiring noise estimation information corresponding to the corresponding port resource according to the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource, and storing the noise estimation information corresponding to the corresponding port resource in a third cache unit.
Further, the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time further includes:
after the noise estimation information corresponding to the corresponding port resource is stored in a third cache unit, the first channel estimation information corresponding to the corresponding port resource in the first cache unit and the second channel estimation information corresponding to the corresponding port resource in the second cache unit are cleared.
Further, the resource of the current port in the current channel state information reference signal is a channel measurement resource or an interference measurement resource;
if the resource of the current port is the channel measurement resource, the process of performing the second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time further includes:
and storing the second channel estimation information corresponding to the current port resource in a first-level storage unit in a hierarchical storage unit.
Further, the storing the second channel estimation information corresponding to the current port resource in a primary storage unit of a hierarchical storage unit includes:
and writing the second channel estimation information corresponding to the current port resource into the primary storage unit according to the data bit width twice as output.
Further, after the noise estimation information corresponding to a plurality of port resources in the current channel state information reference signal is all written into a third cache unit and the second channel estimation information corresponding to all the channel measurement resources in the current channel state information reference signal is all written into the primary storage unit, a CPR read request operation is triggered to be executed;
based on the CPR reading calculation request operation, writing the second channel estimation information corresponding to the channel measurement resource in the primary storage unit into a secondary storage unit in the hierarchical storage unit according to the sequence of the resource blocks, reading the second channel estimation information corresponding to the resource blocks in the secondary storage unit in sequence according to the sequence of the resource blocks, clearing the second channel estimation information corresponding to the corresponding resource blocks in the secondary storage unit after each reading is finished, and enabling the primary storage unit to write the second channel estimation information corresponding to the next resource block into the secondary storage unit according to the sequence of the resource blocks;
reading noise estimation information corresponding to the corresponding resource block in the third cache unit;
and calculating CPR information corresponding to the current channel state information reference signal according to second channel estimation information and noise estimation information corresponding to all resource blocks, wherein the CPR information comprises channel quality indication information, precoding matrix indication information and rank indication information.
Further, the method comprises:
and after the CPR information corresponding to the plurality of channel state information reference signals is acquired, sending the optimal CPR information in the plurality of CPR information to a base station.
In a second aspect, an embodiment of the present application further provides an information processing apparatus, including:
the receiving and sending module is used for acquiring a channel state information reference signal;
a first channel estimation module, configured to perform first channel estimation on resources of multiple ports included in a current channel state information reference signal in sequence, where performing the first channel estimation on a resource of one port at a time includes: acquiring first channel estimation information corresponding to one port resource, storing the acquired first channel estimation information corresponding to the corresponding port resource in a first cache unit, and generating a first signal reflecting that the storage is completed, wherein the first signal comprises identification information of the corresponding port;
a second channel estimation module, configured to trigger execution of a second channel estimation process on the first channel estimation information corresponding to the corresponding port resource based on the first signal, where the second channel estimation process on the first channel estimation information corresponding to the corresponding port resource each time includes: acquiring second channel estimation information corresponding to the corresponding port resource according to the first channel estimation information corresponding to the corresponding port resource, storing the second channel estimation information corresponding to the corresponding port resource in a second cache unit, and generating a second signal reflecting that the storage is completed, wherein the second signal comprises identification information of the corresponding port; and
a noise estimation module, configured to trigger, based on the second signal, a process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource, where the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time includes: and acquiring noise estimation information corresponding to the corresponding port resource according to the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource, and storing the noise estimation information corresponding to the corresponding port resource in a third cache unit.
Further, the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time further includes:
after the noise estimation information corresponding to the corresponding port resource is stored in a third cache unit, the first channel estimation information corresponding to the corresponding port resource in the first cache unit and the second channel estimation information corresponding to the corresponding port resource in the second cache unit are cleared.
Further, the resource of the current port in the current channel state information reference signal is a channel measurement resource or an interference measurement resource;
if the resource of the current port is the channel measurement resource, the process of performing the second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time further includes:
and storing the second channel estimation information corresponding to the current port resource in a first-level storage unit in a hierarchical storage unit.
Further, the storing the second channel estimation information corresponding to the current port resource in a primary storage unit of a hierarchical storage unit includes:
and writing the second channel estimation information corresponding to the current port resource into the primary storage unit according to the data bit width doubled in output.
Further, the apparatus further comprises:
a CPR reading calculation module, configured to trigger a CPR reading request operation to be executed after all the noise estimation information corresponding to the multiple port resources in the current channel state information reference signal is written into a third buffer unit and all the second channel estimation information corresponding to all the channel measurement resources in the current channel state information reference signal is written into the primary storage unit;
based on the CPR reading computation request operation, the primary storage unit is further configured to write the second channel estimation information corresponding to the channel measurement resource in the primary storage unit into a secondary storage unit in the hierarchical storage unit according to the order of the resource blocks, read the second channel estimation information corresponding to the resource blocks in the secondary storage unit in sequence according to the order of the resource blocks, clear the second channel estimation information corresponding to the corresponding resource block in the secondary storage unit after each reading is completed, and write the second channel estimation information corresponding to the next resource block into the secondary storage unit by the primary storage unit according to the order of the resource blocks;
the CPR reading calculation module reads noise estimation information corresponding to the corresponding resource block in the third cache unit;
and the CPR reading calculation module calculates CPR information corresponding to the current channel state information reference signal according to second channel estimation information and noise estimation information corresponding to all resource blocks, wherein the CPR information comprises channel quality indication information, precoding matrix indication information and rank indication information.
Further, the transceiver module is further configured to output optimal CPR information in the CPR information corresponding to the plurality of channel state information reference signals acquired by the CPR reading calculation module.
In a third aspect, an embodiment of the present application further provides a chip, where the chip includes:
a processor configured to read and execute the computer program stored in the memory to perform the information processing method provided by the first aspect.
Further, the chip also comprises a memory, and the memory is connected with the processor through a circuit or a wire. The processor is used to read and execute the computer program in the memory.
Further, the chip also comprises a communication interface, and the processor is connected with the communication interface. The communication interface is used for receiving signals and/or information needing to be processed, and the processor acquires the signals and/or information from the communication interface and processes the signals and/or information. In particular, the communication interface may comprise an input interface and an output interface. The input interface is used for receiving the channel state information reference signal to be processed, and the output interface is used for outputting a processing result (optimal CPR information).
In a fourth aspect, an embodiment of the present application further provides a terminal, where the terminal includes the information processing apparatus provided in the second aspect or the chip provided in the third aspect.
In a fifth aspect, an embodiment of the present application further provides a base station used in cooperation with the terminal provided in the third aspect, where the base station is configured to send a channel state information reference signal to the terminal.
Further, the base station is further configured to receive optimal CPR information sent by the terminal, and adjust a downlink data sending mode related to the terminal according to the optimal CPR information.
In a sixth aspect, an embodiment of the present application further provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the information processing method provided in the first aspect.
Through the technical scheme, after the terminal receives the channel state information reference signal (CSI-RS) sent by the base station, the terminal can sequentially perform first channel estimation (coarse channel estimation) on the resources of the plurality of ports contained in the current CSI-RS, and buffer the corresponding coarse channel estimation information to the coarse channel storage unit. After the coarse channel storage unit caches one complete port data (complete coarse channel estimation information corresponding to one port resource), the coarse channel storage unit performs second channel estimation on the first channel estimation information corresponding to the corresponding port resource and caches the corresponding channel estimation information to the channel estimation storage unit. After the channel estimation storage unit caches one complete port data (complete channel estimation information corresponding to one port resource), noise estimation is performed on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resources, and the corresponding noise estimation information is cached to the noise estimation storage unit. Through the streamlined processing flow, the processing time can be shortened, and the processing efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a CSI-RS processing flow in the prior art;
fig. 2 is a schematic flowchart of an information processing method according to an embodiment of the present application;
fig. 3 is a schematic view of a CSI-RS processing flow according to an embodiment of the present application;
fig. 4 is a schematic diagram of a memory model of a two-level memory cell according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a schematic flow diagram of an information processing method according to an embodiment of the present application, and fig. 3 is a schematic flow diagram of a CSI-RS processing method according to an embodiment of the present application, where as shown in fig. 2 and fig. 3, the CSI-RS processing flow may include the following steps:
step 201: and acquiring a channel state reference signal sent by the base station.
The terminal estimates channel related information by receiving a channel state reference signal (CSI-RS signal) sent by the base station, calculates information adaptive to the self receiving capability and feeds back the information to the base station. The base station can adjust the downlink data sending mode of the corresponding terminal according to the feedback information of the terminal, so that a better communication process between the base station and the terminal is achieved, and better communication quality is realized.
Step 202: and sequentially carrying out first channel estimation on the resources of a plurality of ports contained in the current channel state information reference signal.
Wherein, the performing the first channel estimation on the resource of one port at a time comprises: acquiring first channel estimation information corresponding to a port resource, storing the acquired first channel estimation information corresponding to the corresponding port resource in a first cache unit, and generating a first signal reflecting the completion of storage, wherein the first signal comprises identification information of the corresponding port.
Specifically, a channel state reference signal acquired by a terminal includes resources of a plurality of ports (port), a first channel estimation module (coarse channel estimation module, raw CE module) built in the terminal may sequentially perform first channel estimation (coarse channel estimation) on resources of the plurality of ports (port) included in a current channel state information reference signal, after coarse channel estimation information corresponding to one port (port) resource is acquired, the coarse channel estimation information corresponding to the acquired corresponding port (port) resource is stored in a first cache unit (Raw CE storage unit), and after complete port data (complete coarse channel estimation information corresponding to one port resource) is cached in the Raw CE storage unit, a first signal reflecting completion of storage of one complete port data is generated, and the first signal includes identification information of the corresponding port (port).
For example, a channel state reference signal acquired by a terminal includes resources of 8 ports, 8 ports are Port0, port1, port2, \8230 \ 8230, port6, port7, and a Raw CE module may sequentially perform coarse channel estimation on the resources of 8 ports, and after the Raw CE module completes the coarse channel estimation of one Port (Port 0), the Raw CE module writes the coarse channel estimation information of the corresponding Port (Port 0) into a Raw CE storage unit and generates a first signal, where the first signal includes Port identification information "Port0". And under the condition that the Raw CE storage unit is determined to have a storage space for storing the rough channel estimation information of at least one Port, the Raw CE module continues to perform rough channel estimation on the resource of the next Port.
In this embodiment, the storage space of the Raw CE storage unit is at least sufficient to store 3Port coarse channel estimation information at the same time.
Step 203: and triggering and executing a process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource based on the first signal.
Wherein the process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time comprises: and acquiring second channel estimation information corresponding to the corresponding port resource according to the first channel estimation information corresponding to the corresponding port resource, storing the second channel estimation information corresponding to the corresponding port resource in a second cache unit, and generating a second signal reflecting the completion of storage, wherein the second signal comprises identification information of the corresponding port.
Specifically, each time the Raw CE module generates a first signal, a second channel estimation module (channel estimation module, CE module) built in the terminal is triggered to perform second channel estimation (channel estimation) on the coarse channel estimation information of a corresponding Port cached in the Raw CE storage unit, after acquiring channel estimation information corresponding to a Port resource, the acquired channel estimation information corresponding to the corresponding Port resource is cached in a second cache unit (H cache unit), and after caching complete Port data (complete channel estimation information corresponding to a Port resource) in the H cache unit, a second signal reflecting that storage of the complete Port data is completed is generated, and the second signal includes identification information of the corresponding Port (Port).
For example, after the complete coarse channel estimation information of port0 is cached in the Raw CE storage unit, a first signal is generated, and the CE module may trigger an operation of performing channel estimation on the coarse channel estimation information of port0 based on the first signal, specifically, the CE module performs channel estimation after reading the coarse channel estimation information of port0 cached in the Raw CE storage unit, and caches the obtained channel estimation information of port0 in the H cache unit, thereby generating a second signal, where the second signal includes port identification information "port0". Similarly, when it is determined that the H storage unit further has a storage space for storing channel estimation information of at least one Port, the Raw CE module continues to perform coarse channel estimation on the resource of the next Port.
In an implementation manner, before the CE module stores the channel estimation information corresponding to the current port resource in the H storage unit, the Raw CE module has cached the coarse channel estimation information corresponding to the other port resource in the Raw CE storage unit and generates a corresponding first signal, and then the CE module may sequentially perform the channel estimation operation on the unprocessed coarse channel estimation information in the Raw CE storage unit after storing the channel estimation information corresponding to the current port resource in the H storage unit and generating a corresponding second signal.
In this embodiment, the storage space of the H storage unit is at least sufficient for storing the channel estimation information of 3 ports at the same time.
Step 204: and triggering and executing a process of noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resources based on the second signal.
Wherein, the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time includes: and acquiring noise estimation information corresponding to the corresponding port resource according to the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource, and storing the noise estimation information corresponding to the corresponding port resource in a third cache unit.
Specifically, each time the CE module generates a second signal, a noise estimation module (NE module) built in the terminal is triggered to read the coarse channel estimation information of a corresponding Port in the Raw CE storage unit and the channel estimation information of a corresponding Port in the H storage unit, perform noise estimation, and write the acquired noise estimation information of the corresponding Port in a third cache unit (Rn storage unit). Further, after the NE module acquires noise estimation information corresponding to one port resource, the noise estimation information corresponding to the corresponding port resource is stored in the Rn storage unit.
For example, after the complete channel estimation information of Port0 is cached in the H storage unit, a second signal is generated, and the NE module may trigger a noise estimation operation on the coarse channel estimation information of Port0 and the channel estimation information based on the second signal, specifically, the NE module reads the coarse channel estimation information of Port0 in the Raw CE storage unit and the channel estimation information of Port0 in the H storage unit respectively and performs noise estimation, and writes the obtained noise estimation information of Port0 into the Rn storage unit, thereby generating a third signal reflecting completion of writing of the noise estimation information of Port0, and the third signal includes Port identification information "Port0". Further, after the complete channel estimation information of the next port (port 1) is cached in the H memory unit, and the corresponding second signal is generated, the above noise estimation operation is performed on the coarse channel estimation information and the channel estimation information of port1 until the noise estimation information of a plurality of ports (such as port0 to port 7) in the current channel state information reference signal is written into the Rn memory unit.
The resource of the current port in the current channel state information reference signal is a Channel Measurement Resource (CMR) or an Interference Measurement Resource (IMR).
In an implementation manner, the NE module may further trigger an operation of cleaning the coarse channel estimation information and the channel estimation information of the corresponding port according to the generated third signal to release the storage spaces of the Raw CE storage unit and the H storage unit, after the storage space is released, the Raw CE module may continue to cache the coarse channel estimation information of the next port, and the CE module may continue to cache the channel estimation information of the next port. Thereby realizing the pipelining of the CSI-RS processing process. The total treatment time was about: the running water processing time (equivalent to the NE processing time) + the CPR processing time greatly shortens the overall processing time. Meanwhile, the size of the Raw CE cache unit is greatly compressed (at least, only 3 ports are needed x the number of RBs x the width of data bits). For the compression of the H buffer space (requiring CMR resource number × port number × RB number × data bit width +2 × port × data bit width +3port × RB data × data bit width), the buffer space of the IMR resource can be saved.
In this embodiment, if the resource of the current port is the Channel Measurement Resource (CMR), the triggering of the CE module based on the first signal may further write the channel estimation information corresponding to the port resource into a primary storage unit in a hierarchical storage unit. Specifically, the channel estimation information of the corresponding port can be written into the primary storage unit according to the data bit width twice as wide as the output. Further, in the process of processing the current channel state information reference signal, the channel estimation information of the CMR resource output by the CE module is all written into the primary storage unit.
Fig. 4 is a schematic diagram of a storage model of a two-level storage unit according to an embodiment of the present application, and as shown in fig. 4, in this embodiment, after all the noise estimation information corresponding to multiple port resources in the current channel state information reference signal is written into a third buffer unit and all the second channel estimation information corresponding to all the channel measurement resources in the current channel state information reference signal is written into the one-level storage unit, CPR read request operation is triggered to be executed. For example, after the NE module writes all the noise estimation information of port0 to port7 into the Rn storage unit and all the channel estimation information of the CMR resource port of port0 to port7 into the primary storage unit, it triggers to execute CPR read request operation. Specifically, in response to the CPR reading request operation, the primary storage unit may write channel estimation information corresponding to the channel measurement Resource into the secondary storage unit in the hierarchical storage unit in the order of Resource Blocks (RBs), in order to implement reading while writing, that is, after the CPR module finishes reading port data of one RB in the secondary storage unit, the CPR module may clean corresponding data in the secondary storage unit to release a corresponding space, so that the primary storage unit can write port data of the next RB into the secondary storage unit, and then the secondary storage unit opens access permission to a CPR reading calculation module (CRP module) built in the terminal, thereby performing CPR reading calculation operation. In thatIn an implementation manner, the secondary storage unit may store port data of at least two RBs, for example, in response to the above CPR read request operation, the primary storage unit writes channel estimation information corresponding to the channel measurement Resource stored in the primary storage unit into the secondary storage unit in order of Resource Blocks (RBs), where the secondary storage unit supports storage of port data of 2 RBs, and the primary storage unit first writes RBs in order of Resource blocks into the secondary storage unit 0 And RB 1 Port data of (4), read RB at CPR module 0 The secondary storage unit clears corresponding data, and the primary storage unit sequentially stores RBs according to resource blocks 3 And (4) writing the port data into the secondary storage unit, and repeating the steps until the port data of all the BRs are written into the secondary storage unit and the CPR module finishes reading. In this way, the requirement for simultaneous reading and writing of the hierarchical memory unit (CMR memory unit) can be satisfied, and the time for reading data of CPR is shortened. For the first-level storage unit, the cache size is CMR resource number multiplied by port number multiplied by RB number multiplied by data bit width, and the first-level storage unit is a storage space necessary for CSI, the data structure of the storage unit is modified, and the conversion of continuous reading and writing in time and the reading and writing sequence is realized by matching with the second-level storage unit (the minimum size is 2 port number multiplied by data bit width).
Based on the CPR reading calculation request operation, writing the second channel estimation information corresponding to the channel measurement resource in the primary storage unit into a secondary storage unit in the hierarchical storage unit according to the sequence of the resource blocks, reading the second channel estimation information corresponding to the resource blocks in the secondary storage unit in sequence according to the sequence of the resource blocks, cleaning the second channel estimation information corresponding to the corresponding resource blocks in the secondary storage unit after each reading is finished, and enabling the primary storage unit to write the second channel estimation information corresponding to the next resource block into the secondary storage unit according to the sequence of the resource blocks.
And reading channel estimation information corresponding to the corresponding resource block in the secondary storage unit. After the secondary storage unit opens the access right to the CRP module built in the terminal, the CRP module can read different port data (channel estimation information) of the corresponding RB in the secondary storage unit.
And calculating CPR information corresponding to the current channel state information reference signal according to second channel estimation information and noise estimation information corresponding to all resource blocks, wherein the CPR information comprises channel quality indication information, precoding matrix indication information and rank indication information.
At this point, processing of one CSI-RS signal is completed, that is, CPR information on the one CSI-RS signal is acquired. Through the processing mode, after the CPR information corresponding to the plurality of channel state information reference signals is acquired, the optimal CPR information in the plurality of CPR information is sent to a base station. After receiving the optimal CPR information sent by the current terminal, the base station can adjust a downlink data sending mode related to the current terminal according to the optimal CPR information, thereby achieving a better communication process between the base station and the terminal and realizing better communication quality.
The application also provides a chip comprising a processor. The processor is configured to read and execute the computer program stored in the memory to perform the information processing method provided in the above embodiment of the present application.
Optionally, the chip further comprises a memory, the memory being connected to the processor by a circuit or a wire. The processor is used to read and execute the computer program in the memory.
Further optionally, the chip further comprises a communication interface, and the processor is connected to the communication interface. The communication interface is used for receiving signals and/or information needing to be processed, and the processor acquires the signals and/or information from the communication interface and processes the signals and/or information. In particular, the communication interface may comprise an input interface and an output interface. The input interface is used for receiving a channel state information reference signal to be processed, and the output interface is used for outputting a processing result (optimal CPR information).
The embodiment of the application also provides a terminal, which can comprise a terminal body and the chip.
The embodiment of the present application further provides a base station used in cooperation with the terminal, where the base station is configured to send a channel state information reference signal to the terminal. In an implementation manner, the base station is further configured to receive optimal CPR information sent by the terminal, and adjust a downlink data sending manner of the terminal according to the optimal CPR information.
The embodiment of the present application further provides a computer storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the information processing method provided by the above embodiment.
It should be understood that the application may be an application program (native app) installed on the terminal, or may also be a web page program (webApp) of a browser on the terminal, which is not limited in this embodiment of the present invention.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. An information processing method, characterized in that the method comprises:
acquiring a channel state information reference signal sent by a base station;
sequentially performing first channel estimation on a plurality of port resources contained in a current channel state information reference signal, wherein performing the first channel estimation on one port resource each time comprises: acquiring first channel estimation information corresponding to one port resource, storing the acquired first channel estimation information corresponding to the corresponding port resource in a first cache unit, and generating a first signal reflecting that the storage is completed, wherein the first signal comprises identification information of the corresponding port;
triggering and executing a process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource based on the first signal, wherein the process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time comprises: acquiring second channel estimation information corresponding to the corresponding port resource according to the first channel estimation information corresponding to the corresponding port resource, storing the second channel estimation information corresponding to the corresponding port resource in a second cache unit, and generating a second signal reflecting that the storage is completed, wherein the second signal comprises identification information of the corresponding port; and
triggering and executing a process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource based on the second signal, where the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time includes: and acquiring noise estimation information corresponding to the corresponding port resource according to the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource, and storing the noise estimation information corresponding to the corresponding port resource in a third cache unit.
2. The method according to claim 1, wherein said process of noise estimating the first channel estimation information and the second channel estimation information corresponding to the respective port resources each time further comprises:
after the noise estimation information corresponding to the corresponding port resource is stored in a third cache unit, the first channel estimation information corresponding to the corresponding port resource in the first cache unit and the second channel estimation information corresponding to the corresponding port resource in the second cache unit are cleared.
3. The method of claim 1, wherein the resource of the current port in the current csi reference signal is a channel measurement resource or an interference measurement resource;
if the resource of the current port is the channel measurement resource, the process of performing the second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time further includes:
and storing the second channel estimation information corresponding to the current port resource in a first-level storage unit in a hierarchical storage unit.
4. The method according to claim 3, wherein said storing the second channel estimation information corresponding to the current port resource in a primary storage unit of a hierarchical storage unit comprises:
and writing the second channel estimation information corresponding to the current port resource into the primary storage unit according to the data bit width doubled in output.
5. The method of claim 3, wherein after all of the noise estimation information corresponding to a plurality of port resources in the current channel state information reference signal is written into a third buffer unit and all of the second channel estimation information corresponding to all of the channel measurement resources in the current channel state information reference signal is written into the primary storage unit, a CPR read request operation is triggered to be performed;
based on the CPR reading request operation, writing the second channel estimation information corresponding to the channel measurement resource in the primary storage unit into a secondary storage unit in the hierarchical storage unit according to the sequence of the resource blocks, reading the second channel estimation information corresponding to the resource blocks in the secondary storage unit in sequence according to the sequence of the resource blocks, clearing the second channel estimation information corresponding to the corresponding resource block in the secondary storage unit after each reading is finished, and enabling the primary storage unit to write the second channel estimation information corresponding to the next resource block into the secondary storage unit according to the sequence of the resource blocks;
reading noise estimation information corresponding to the corresponding resource block in the third cache unit;
and calculating CPR information corresponding to the current channel state information reference signal according to second channel estimation information and noise estimation information corresponding to all resource blocks, wherein the CPR information comprises channel quality indication information, precoding matrix indication information and rank indication information.
6. The method of claim 5, wherein the method comprises:
and after the CPR information corresponding to the plurality of channel state information reference signals is acquired, sending the optimal CPR information in the plurality of CPR information to a base station.
7. An information processing apparatus, characterized in that the apparatus comprises:
the receiving and sending module is used for acquiring a channel state information reference signal;
a first channel estimation module, configured to perform first channel estimation on resources of multiple ports included in a current channel state information reference signal in sequence, where performing the first channel estimation on a resource of one port at a time includes: acquiring first channel estimation information corresponding to a port resource, storing the acquired first channel estimation information corresponding to the corresponding port resource in a first cache unit, and generating a first signal reflecting the completion of storage, wherein the first signal comprises identification information of the corresponding port;
a second channel estimation module, configured to trigger, based on the first signal, a process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource, where the process of performing second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time includes: acquiring second channel estimation information corresponding to the corresponding port resource according to the first channel estimation information corresponding to the corresponding port resource, storing the second channel estimation information corresponding to the corresponding port resource in a second cache unit, and generating a second signal reflecting the completion of storage, wherein the second signal comprises identification information of the corresponding port; and
a noise estimation module, configured to trigger execution of a process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource based on the second signal, where the process of performing noise estimation on the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource each time includes: and acquiring noise estimation information corresponding to the corresponding port resource according to the first channel estimation information and the second channel estimation information corresponding to the corresponding port resource, and storing the noise estimation information corresponding to the corresponding port resource in a third cache unit.
8. The apparatus of claim 7, wherein the process of noise estimating the first channel estimation information and the second channel estimation information corresponding to the respective port resources each time further comprises:
after the noise estimation information corresponding to the corresponding port resource is stored in a third cache unit, the first channel estimation information corresponding to the corresponding port resource in the first cache unit and the second channel estimation information corresponding to the corresponding port resource in the second cache unit are cleared.
9. The apparatus of claim 7, wherein the resources of the current port in the current csi rs signal are channel measurement resources or interference measurement resources;
if the resource of the current port is the channel measurement resource, the process of performing the second channel estimation on the first channel estimation information corresponding to the corresponding port resource each time further includes:
and storing the second channel estimation information corresponding to the current port resource in a primary storage unit in a hierarchical storage unit.
10. The apparatus of claim 9, wherein the means for storing the second channel estimation information corresponding to the current port resource in a primary storage unit of a hierarchical storage unit comprises:
and writing the second channel estimation information corresponding to the current port resource into the primary storage unit according to the data bit width twice as output.
11. The apparatus of claim 9, further comprising:
a CPR reading calculation module, configured to trigger a CPR reading request operation to be executed after all the noise estimation information corresponding to the multiple port resources in the current channel state information reference signal is written into a third buffer unit and all the second channel estimation information corresponding to all the channel measurement resources in the current channel state information reference signal is written into the primary storage unit;
based on the CPR reading request operation, the primary storage unit is further configured to write the second channel estimation information corresponding to the channel measurement resource in the primary storage unit into a secondary storage unit in the hierarchical storage unit according to the order of the resource blocks, sequentially read the second channel estimation information corresponding to the resource blocks in the secondary storage unit according to the order of the resource blocks, clear the second channel estimation information corresponding to the corresponding resource block in the secondary storage unit after each reading is completed, and write the second channel estimation information corresponding to the next resource block into the secondary storage unit by the primary storage unit according to the order of the resource blocks;
the CPR reading calculation module reads noise estimation information corresponding to the corresponding resource block in the third cache unit;
and the CPR reading calculation module calculates CPR information corresponding to the current channel state information reference signal according to second channel estimation information and noise estimation information corresponding to all resource blocks, wherein the CPR information comprises channel quality indication information, precoding matrix indication information and rank indication information.
12. The device of claim 11, wherein the transceiver module is further configured to output optimal CPR information of the CPR information sets corresponding to the plurality of channel state information reference signals obtained by the CPR reading computation module.
13. A chip comprising a processor for reading and executing a computer program stored in a memory to perform the information processing method of any one of claims 1 to 6.
14. A terminal, characterized in that the terminal comprises: the chip of claim 13 or comprising the device of any one of claims 7-12.
15. A computer storage medium on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements an information processing method according to any one of claims 1 to 6.
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