CN112242862A - Information reporting method, terminal and network side equipment - Google Patents

Information reporting method, terminal and network side equipment Download PDF

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Publication number
CN112242862A
CN112242862A CN201910651221.8A CN201910651221A CN112242862A CN 112242862 A CN112242862 A CN 112242862A CN 201910651221 A CN201910651221 A CN 201910651221A CN 112242862 A CN112242862 A CN 112242862A
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China
Prior art keywords
csi
indication information
rss
channel quality
information
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李岩
王飞
徐晓东
胡丽洁
金婧
王启星
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Priority to CN201910651221.8A priority Critical patent/CN112242862A/en
Priority to PCT/CN2020/101298 priority patent/WO2021008452A1/en
Publication of CN112242862A publication Critical patent/CN112242862A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides an information reporting method, a terminal and network side equipment, belonging to the technical field of wireless communication, wherein the information reporting method applied to the terminal comprises the following steps: and sending first information to network side equipment, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs. In the invention, the terminal can jointly estimate the inter-stream interference through two or more measured CSI-RSs.

Description

Information reporting method, terminal and network side equipment
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an information reporting method, a terminal, and a network side device.
Background
Currently, in some communication scenarios, there is a problem of serious inter-stream interference (inter-layer interference) between multiple data streams located in close proximity. For example, in a high-speed railway scenario as shown in fig. 1, an indoor Baseband processing Unit (BBU) is connected to 3 Remote Radio Heads (RRHs) through optical fibers, and each RRH has two antenna panels in different directions. The two antenna panels of each RRH transmit different streams (layers), specifically a left panel transmitting layer0 (shown as L0) and a right panel transmitting layer1 (shown as L1). However, two adjacent RRHs each send one Layer, and a terminal (UE) receives data of two layers, which may have serious inter-Layer interference (inter-Layer interference). Therefore, this severe inter-stream interference needs to be considered in the calculation of the channel quality indication information.
Disclosure of Invention
In view of the above, the present invention provides an information reporting method, a terminal and a network side device, which are used to solve the problem that there is serious inter-stream interference between multiple data streams that are located close to each other in some current communication scenarios.
In order to solve the above technical problem, in a first aspect, the present invention provides an information reporting method, applied to a terminal, including:
and sending first information to network side equipment, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the at least two CSI-RSs are obtained by:
sequencing the CSI-RSs measured by the terminal according to the signal intensity from large to small;
selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, where the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs and CSI-IM of the at least two CSI-RSs as interference.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, and the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS for interference measurement as interference, or the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS and the CSI-IM as interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes the rank indication information respectively determined according to each CSI-RS;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
In a second aspect, the present invention further provides an information reporting method, applied to a network side device, including:
receiving first information sent by a terminal, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
Optionally, before the step of receiving the first information sent by the terminal, the method further includes:
the CSI-RS is transmitted separately through each data stream.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, before the step of receiving the first information sent by the terminal, the method further includes:
and sending reporting configuration information to the terminal, wherein the reporting configuration information is used for indicating the terminal to report the first information.
Optionally, before the step of receiving the first information sent by the terminal, the method further includes:
and sending resource configuration information to the terminal, wherein the resource configuration information comprises at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to the NZP CSI-RS for interference measurement and resource configuration information corresponding to the CSI-IM.
In a third aspect, the present invention further provides a terminal, including:
and the reporting module is used for sending first information to network side equipment, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the terminal further includes:
the screening module is used for sequencing the CSI-RSs measured by the terminal from large to small according to the signal intensity; selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, where the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs and CSI-IM of the at least two CSI-RSs as interference.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, and the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS for interference measurement as interference, or the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS and the CSI-IM as interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes the rank indication information respectively determined according to each CSI-RS;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
In a fourth aspect, the present invention further provides a network side device, including:
the terminal comprises a receiving module and a sending module, wherein the receiving module is used for receiving first information sent by the terminal, and the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
Optionally, the network side device further includes:
and the CSI-RS sending module is used for sending the CSI-RS through each data stream respectively.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the network side device further includes:
a first sending module, configured to send reporting configuration information to the terminal, where the reporting configuration information is used to instruct the terminal to report the first information.
Optionally, the network side device further includes:
a second sending module, configured to send resource configuration information to the terminal, where the resource configuration information includes at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to an NZP CSI-RS for interference measurement, and resource configuration information corresponding to a CSI-IM.
In a fifth aspect, the present invention further provides a terminal, including:
the transceiver is configured to send first information to a network side device, where the first information includes resource indication information of at least two CSI-RSs measured by the terminal, and channel quality indication information determined according to the at least two CSI-RSs.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the terminal further includes: the processor is used for sequencing the CSI-RSs measured by the terminal from large to small according to the signal intensity; selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, where the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs and CSI-IM of the at least two CSI-RSs as interference.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, and the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS for interference measurement as interference, or the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS and the CSI-IM as interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes the rank indication information respectively determined according to each CSI-RS;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
In a sixth aspect, the present invention further provides a network side device, including:
the transceiver is used for receiving first information sent by a terminal, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
Optionally, the transceiver is further configured to transmit the CSI-RS through each data stream respectively.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the transceiver is further configured to send reporting configuration information to the terminal, where the reporting configuration information is used to instruct the terminal to report the first information.
Optionally, the transceiver is further configured to send resource configuration information to the terminal, where the resource configuration information includes at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to an NZP CSI-RS for interference measurement, and resource configuration information corresponding to a CSI-IM.
In a seventh aspect, the present invention further provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor; and the processor realizes any one of the information reporting methods applied to the terminal when executing the computer program.
In an eighth aspect, the present invention further provides a network-side device, including a memory, a processor, and a computer program stored in the memory and executable on the processor; and when the processor executes the computer program, the processor realizes any one of the information reporting methods applied to the network side equipment.
In a ninth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in any one of the above-mentioned information reporting methods.
The technical scheme of the invention has the following beneficial effects:
in the embodiment of the invention, the terminal can estimate the inter-stream interference by measuring the CSI-RS respectively sent along with a plurality of data streams, namely, the channel quality indication information is obtained by calculation, and the channel quality indication information obtained by calculation and the CSI-RS resource indication information used for calculating the channel quality indication information are reported to the network side equipment, so that the network side equipment can perform corresponding processing according to the channel quality indication information and the CSI-RS resource indication information.
Drawings
FIG. 1 is a schematic diagram of a communication scenario;
fig. 2 is a schematic flow chart of an information reporting method according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating an information reporting method according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network-side device in the fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal in a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a network-side device in a sixth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal in a seventh embodiment of the present invention;
fig. 9 is a schematic structural diagram of a network-side device in an eighth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Referring to fig. 2, fig. 2 is a schematic flow chart of an information reporting method according to an embodiment of the present invention, where the method is applied to a terminal, and includes the following steps:
step 11: the terminal sends first Information to a network side device, wherein the first Information includes resource indication Information (CRI) of at least two Channel State Information Reference signals (CSI-RSs) measured by the terminal, and Channel Quality indication Information (CQI) determined according to the at least two CSI-RSs.
In the embodiment of the invention, the terminal can estimate the inter-stream interference by measuring the CSI-RS respectively sent along with a plurality of data streams, namely, the channel quality indication information is obtained by calculation, and the channel quality indication information obtained by calculation and the CSI-RS resource indication information used for calculating the channel quality indication information are reported to the network side equipment, so that the network side equipment can perform corresponding processing according to the channel quality indication information and the CSI-RS resource indication information.
The following exemplifies the above information reporting method.
Optionally, the at least two CSI-RSs are obtained by:
sequencing the CSI-RSs measured by the terminal according to the signal intensity from large to small;
selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
For example, if the first information includes only resource indication information of two CSI-RSs, the two CSI-RSs are the two CSI-RSs with the strongest signals among all CSI-RSs measured by the terminal. Generally, the data stream that the terminal needs to receive is relatively strong, and the data stream that can cause severe interference to the data stream that the terminal needs to receive is also relatively strong. Therefore, in the embodiment of the invention, when the inter-stream interference is estimated, the CSI-RS with stronger signals is selected from the measured CSI-RS. For example, in the high-speed railway scenario shown in fig. 1, the finally selected CSI-RS is generally two CSI-RSs transmitted by the right panel of the remote radio head 1 and the left panel of the remote radio head 2.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams. That is, the network side device transmits CSI-RS for estimating inter-stream interference through each data stream.
In some optional specific embodiments, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, and the channel quality indication information corresponding to the first CSI-RS is calculated by using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference.
Wherein the first CSI-RS may be part or all of the at least two CSI-RSs. That is to say, the channel quality indication information may be determined according to channel quality indication information corresponding to at least one CSI-RS, where the channel quality indication information corresponding to the CSI-RS is calculated by using the CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference.
Specifically, in the embodiment of the present invention, the terminal may select two or more CSI-RSs from the measured CSI-RSs, calculate channel quality indication information by using one CSI-RS of the selected CSI-RSs as a signal and using other CSI-RSs as interference, and report the channel quality indication information to the network side device as the channel quality indication information in the first information; the terminal can also select two or more CSI-RSs from the measured CSI-RSs as interference joint estimation to obtain the channel quality indication information reported to the network side equipment.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is calculated by using the first CSI-RS as a signal and the second CSI-RS as interference, and the channel quality indication information corresponding to the second CSI-RS is calculated by using the second CSI-RS as a signal and the first CSI-RS as interference.
In addition, the Channel quality indication Information corresponding to the first CSI-RS may also be obtained by using the first CSI-RS as a signal and using other CSI-RSs and CSI-IMs (Channel State Information interference Measurement) in the at least two CSI-RSs as interference calculation.
It should be noted that the CSI-IM may specifically include a zero-power CSI-RS.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is calculated by using the first CSI-RS as a signal and using the second CSI-RS and the CSI-IM as interference; and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS;
for example, the channel quality indication information included in the first information may be channel quality indication information corresponding to one CSI-RS of the at least two CSI-RSs, or may also be channel quality indication information corresponding to each CSI-RS of the at least two CSI-RSs, respectively.
Alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
That is, the channel quality indication information may also be: according to one piece of channel quality indication information determined by the at least two CSI-RSs, the one piece of channel quality indication information may be one of the at least two pieces of channel quality indication information corresponding to the at least two CSI-RSs, which has a smaller median value, or may be an average value of the at least two pieces of channel quality indication information corresponding to the at least two CSI-RSs.
In other optional specific embodiments, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, where the channel quality indication information corresponding to each CSI-RS is obtained by using each CSI-RS as a signal and using a Non-Zero Power (NZP) CSI-RS for interference measurement as interference calculation, or the channel quality indication information corresponding to each CSI-RS is obtained by using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference calculation.
Wherein the NZP CSI-RS for interference measurement and the CSI-RS are transmitted through the same data stream.
Specifically, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS may be obtained by using the first CSI-RS as a signal and using the NZP CSI-RS for interference measurement as interference calculation, and the channel quality indication information corresponding to the second CSI-RS may be obtained by using the second CSI-RS as a signal and using the NZP CSI-RS for interference measurement as interference calculation.
Or, in the case that the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS may be calculated by using the first CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference, and the channel quality indication information corresponding to the second CSI-RS may be calculated by using the second CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
That is, the channel quality indication information may also be: and determining one piece of channel quality indication information according to the at least two CSI-RSs, where the one piece of channel quality indication information may be one of the at least two pieces of channel quality indication information corresponding to the at least two CSI-RSs, which has a smaller median value, or may be an average value of the at least two pieces of channel quality indication information corresponding to the at least two CSI-RSs.
In other optional embodiments, the reported channel quality indication information may also be calculated by other manners. That is, the calculation method of the cqi used for reporting is not limited to the above calculation method.
In an optional specific embodiment, the first information further includes at least one of Rank Indication information (RI) and Precoding Matrix Indication information (PMI) determined according to the CSI-RS.
Further optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes rank indication information respectively determined according to each of the CSI-RSs;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
That is, if the rank indication information corresponding to the CSI-RS to be reported is the same, the first information to be reported may only include one rank indication information, and similarly, if the precoding matrix indication information corresponding to the CSI-RS to be reported is the same, the first information to be reported may only include one precoding matrix indication information, so as to save communication resources. If the network side equipment receives the resource indication information of two or more CSI-RSs, but only receives one piece of rank indication information or precoding matrix indication information, the rank indication information or the precoding matrix indication information corresponding to the two or more CSI-RSs is considered to be the same.
It should be noted that the reporting format of the first information may be various, for example, one CQI, CRI1+ RI1+ PMI1 and CRI2+ RI2+ PMI2, where CRI1, RI1, and PMI1 are respectively resource indication information, rank indication information, and precoding matrix indication information corresponding to one CSI-RS in CSI-RSs for reporting, and CRI2, RI2, and PMI2 are respectively resource indication information, rank indication information, and precoding matrix indication information corresponding to another CSI-RS. For another example, the CQI is 1+ CQI2, CRI1+ RI1+ PMI1, and CRI2+ RI2+ PMI2, where the CQI1 is channel quality indication information calculated by taking a first CSI-RS as a signal and a second CSI-RS as interference (if CSI-IM exists, CSI-IM is taken as interference at the same time) in CSI-RSs for reporting, and the CQI2 is channel quality indication information calculated by taking the second CSI-RS as a signal and the first CSI-RS as interference (if CSI-IM exists, CSI-IM is taken as interference at the same time) in CSI-RSs for reporting.
One application scenario in which the embodiment of the invention can be applied is a high-speed railway. As shown in fig. 1, in a high-speed railway scenario, an indoor Baseband processing Unit (BBU) is connected to 3 Remote Radio Heads (RRHs) through optical fibers, and each RRH has two antenna panels in different directions. The two antenna panels of each RRH transmit different streams (layers), specifically a left panel transmitting layer0 (shown as L0) and a right panel transmitting layer1 (shown as L1). However, when two adjacent RRHs each send a Layer, there is a serious inter-Layer interference (inter-Layer interference) when the terminal (UE) receives data of two layers, the inter-Layer interference may be estimated by the method provided in the embodiment of the present invention, and then the network side device performs corresponding processing according to the estimated inter-stream interference, and the following illustrates a specific process of estimating inter-stream interference:
the 6 antenna panels respectively transmit one CSI-RS, such as channel state information reference signal 0(CSI-RS0), channel state information reference signal 1(CSI-RS1), channel state information reference signal 2(CSI-RS2), channel state information reference signal 3(CSI-RS3), channel state information reference signal 4(CSI-RS4), and channel state information reference signal 5(CSI-RS 5). The terminal measures the CSI-RSs and selects 2 CSI-RSs (for example, CSI-RS1 and CSI-RSs 2) with the strongest signals from the measured CSI-RSs. And then, taking the CSI-RS1 as a signal and the CSI-RS2 as interference, if the network side equipment configures CSI-IM, simultaneously taking the measured CSI-IM as the interference, and if the network side equipment does not configure CSI-IM, not considering the interference, and calculating to obtain the CQI 1. And then, taking the CSI-RS2 as a signal and the CSI-RS1 as interference, and if CSI-IM exists, simultaneously taking the CSI-IM as the interference, and if the CSI-IM does not exist, not considering the interference, and calculating to obtain the CQI 2. And finally, calculating the average value of the CQI1 and the CQI2 or the minimum value of the CQI1 and the CQI2 as the reported CQI0, and respectively calculating the RI and the PMI aiming at the CSI-RS1 and the CSI-RS 2. And reporting the CQI0, the CRI1, the RI1 and the PMI1 of the CSI-RS1 and the CRI2, the RI2 and the PMI2 of the CSI-RS2 to the network side equipment.
Referring to fig. 3, fig. 3 is a schematic flow chart of an information reporting method according to a second embodiment of the present invention, where the method is applied to a network side device, and includes the following steps:
step 31: the network side equipment receives first information sent by a terminal, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the network side equipment receives the channel quality indication information obtained by measuring the CSI-RS which is respectively sent along with a plurality of data streams and the CSI-RS resource indication information used for calculating the channel quality indication information, thereby being capable of carrying out corresponding processing according to the received channel quality indication information and the CSI-RS resource indication information.
The following exemplifies the above information reporting method.
Optionally, before the step of receiving the first information sent by the terminal, the method further includes:
and the network side equipment sends the CSI-RS through each data stream respectively. The CSI-RS transmitted separately through each data stream is used to estimate inter-stream interference. That is, the network side device transmits CSI-RS for estimating inter-stream interference on each data stream.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, before the step of receiving the first information sent by the terminal, the method further includes:
and the network side equipment sends reporting configuration information to the terminal, wherein the reporting configuration information is used for indicating the terminal to report the first information.
Optionally, before the step of receiving the first information sent by the terminal, the method further includes:
and the network side equipment sends resource configuration information to the terminal, wherein the resource configuration information comprises at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to the NZP CSI-RS for interference measurement and resource configuration information corresponding to the CSI-IM.
The embodiments of the present invention provide technical solutions corresponding to the above embodiments and having the same inventive concept, and can achieve the same technical effects.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a terminal according to a third embodiment of the present invention, where the terminal 40 includes:
the reporting module 41 is configured to send first information to a network side device, where the first information includes resource indication information of at least two CSI-RSs measured by the terminal, and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the terminal can estimate the inter-stream interference by measuring the CSI-RS respectively sent along with a plurality of data streams, namely, the channel quality indication information is obtained by calculation, and the channel quality indication information obtained by calculation and the CSI-RS resource indication information used for calculating the channel quality indication information are reported to the network side equipment, so that the network side equipment can perform corresponding processing according to the channel quality indication information and the CSI-RS resource indication information.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the terminal further includes:
the screening module is used for sequencing the CSI-RSs measured by the terminal from large to small according to the signal intensity; selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, where the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs and CSI-IM of the at least two CSI-RSs as interference.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, and the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS for interference measurement as interference, or the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS and the CSI-IM as interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes the rank indication information respectively determined according to each CSI-RS;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the first embodiment in detail.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a network-side device according to a fourth embodiment of the present invention, where the network-side device 50 includes:
a receiving module 51, configured to receive first information sent by a terminal, where the first information includes resource indication information of at least two CSI-RSs measured by the terminal, and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the network side equipment receives the channel quality indication information obtained by measuring the CSI-RS which is respectively sent along with a plurality of data streams and the CSI-RS resource indication information used for calculating the channel quality indication information, thereby being capable of carrying out corresponding processing according to the received channel quality indication information and the CSI-RS resource indication information.
Optionally, the network side device further includes:
and the CSI-RS sending module is used for sending the CSI-RS through each data stream respectively.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the network side device further includes:
a first sending module, configured to send reporting configuration information to the terminal, where the reporting configuration information is used to instruct the terminal to report the first information.
Optionally, the network side device further includes:
a second sending module, configured to send resource configuration information to the terminal, where the resource configuration information includes at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to an NZP CSI-RS for interference measurement, and resource configuration information corresponding to a CSI-IM.
The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the second embodiment.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a terminal according to a fifth embodiment of the present invention, where the terminal 60 includes:
the transceiver 61 is configured to send first information to a network side device, where the first information includes resource indication information of at least two CSI-RSs measured by the terminal, and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the terminal can estimate the inter-stream interference by measuring the CSI-RS respectively sent along with a plurality of data streams, namely, the channel quality indication information is obtained by calculation, and the channel quality indication information obtained by calculation and the CSI-RS resource indication information used for calculating the channel quality indication information are reported to the network side equipment, so that the network side equipment can perform corresponding processing according to the channel quality indication information and the CSI-RS resource indication information.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the terminal further includes:
the processor is used for sequencing the CSI-RSs measured by the terminal from large to small according to the signal intensity; selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, where the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs and CSI-IM of the at least two CSI-RSs as interference.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, and the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS for interference measurement as interference, or the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS and the CSI-IM as interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes the rank indication information respectively determined according to each CSI-RS;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the first embodiment in detail.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a network-side device according to a sixth embodiment of the present invention, where the network-side device 70 includes:
the transceiver 71 is configured to receive first information sent by a terminal, where the first information includes resource indication information of at least two CSI-RSs measured by the terminal, and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the network side equipment receives the channel quality indication information obtained by measuring the CSI-RS which is respectively sent along with a plurality of data streams and the CSI-RS resource indication information used for calculating the channel quality indication information, thereby being capable of carrying out corresponding processing according to the received channel quality indication information and the CSI-RS resource indication information.
Optionally, the transceiver is further configured to transmit the CSI-RS through each data stream respectively.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, the transceiver 71 is further configured to send reporting configuration information to the terminal, where the reporting configuration information is used to instruct the terminal to report the first information.
Optionally, the transceiver 71 is further configured to send resource configuration information to the terminal, where the resource configuration information includes at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to an NZP CSI-RS for interference measurement, and resource configuration information corresponding to a CSI-IM.
The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the second embodiment.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a terminal according to a seventh embodiment of the present invention, where the terminal 80 includes a processor 81, a memory 82, and a computer program stored in the memory 82 and capable of running on the processor 81; the processor 81, when executing the computer program, implements the steps of:
and sending first information to network side equipment, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the terminal can estimate the inter-stream interference by measuring the CSI-RS respectively sent along with a plurality of data streams, namely, the channel quality indication information is obtained by calculation, and the channel quality indication information obtained by calculation and the CSI-RS resource indication information used for calculating the channel quality indication information are reported to the network side equipment, so that the network side equipment can perform corresponding processing according to the channel quality indication information and the CSI-RS resource indication information.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, when the processor 81 executes the computer program, the following steps may be further implemented:
sequencing the CSI-RSs measured by the terminal according to the signal intensity from large to small;
selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
Optionally, each CSI-RS is a CSI-RS that is sent by the network side device through different data streams.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, where the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and using other CSI-RSs and CSI-IM of the at least two CSI-RSs as interference.
Optionally, the channel quality indication information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, the channel quality indication information is determined according to channel quality indication information corresponding to the at least two CSI-RSs, and the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS for interference measurement as interference, or the channel quality indication information corresponding to each CSI-RS is obtained by performing interference calculation using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference.
Optionally, the channel quality indication information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
Optionally, when the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing calculation using the first CSI-RS as a signal and the second CSI-RS and the CSI-IM as interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
Optionally, in a case that the rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes the rank indication information respectively determined according to each CSI-RS;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
The specific working process of the embodiment of the present invention is the same as that of the first embodiment of the method, and therefore, detailed description is not repeated here, and please refer to the description of the method steps in the first embodiment.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a network-side device according to an eighth embodiment of the present invention, where the network-side device 90 includes a processor 91, a memory 92, and a computer program stored in the memory 92 and capable of running on the processor 91; the processor 91, when executing the computer program, performs the following steps:
receiving first information sent by a terminal, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
In the embodiment of the invention, the network side equipment receives the channel quality indication information obtained by measuring the CSI-RS which is respectively sent along with a plurality of data streams and the CSI-RS resource indication information used for calculating the channel quality indication information, thereby being capable of carrying out corresponding processing according to the received channel quality indication information and the CSI-RS resource indication information.
Optionally, when the processor 91 executes the computer program, the following steps may be further implemented:
before the step of receiving the first information sent by the terminal, the method further includes:
the CSI-RS is transmitted separately through each data stream.
Optionally, the first information further includes at least one of rank indication information and precoding matrix indication information determined according to the CSI-RS.
Optionally, when the processor 91 executes the computer program, the following steps may be further implemented:
before the step of receiving the first information sent by the terminal, the method further includes:
and sending reporting configuration information to the terminal, wherein the reporting configuration information is used for indicating the terminal to report the first information.
Optionally, when the processor 91 executes the computer program, the following steps may be further implemented:
before the step of receiving the first information sent by the terminal, the method further includes:
and sending resource configuration information to the terminal, wherein the resource configuration information comprises at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to the NZP CSI-RS for interference measurement and resource configuration information corresponding to the CSI-IM.
The specific working process of the embodiment of the present invention is the same as that of the second embodiment of the method, and therefore, the detailed description thereof is omitted, and refer to the description of the method steps in the second embodiment.
An embodiment of the ninth application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps in the information reporting method in any one of the first application and the second application. Please refer to the above description of the method steps in the corresponding embodiments.
The network side device in the embodiment of the present invention may be a Base Transceiver Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), may also be a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), may also be an evolved Node B (evolved Node B, eNB or eNodeB) in LTE, or a relay Station or Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.
The terminal in the embodiments of the present invention may be a wireless terminal or a wired terminal, and the wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a Terminal (User Device or User Equipment), which are not limited herein.
The computer-readable storage media described above, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (22)

1. An information reporting method is applied to a terminal, and is characterized by comprising the following steps:
and sending first information to network side equipment, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
2. The method of claim 1, wherein the first information further comprises at least one of rank indication information and precoding matrix indication information determined from the CSI-RS.
3. The method of claim 1, wherein the at least two CSI-RSs are obtained by:
sequencing the CSI-RSs measured by the terminal according to the signal intensity from large to small;
selecting the at least two CSI-RSs from the plurality of CSI-RSs from front to back.
4. The method of claim 1, wherein each CSI-RS is a CSI-RS transmitted by a network side device via different data streams.
5. The method of claim 1, wherein the channel quality indication information is determined according to channel quality indication information corresponding to a first CSI-RS of the at least two CSI-RSs, and wherein the channel quality indication information corresponding to the first CSI-RS is obtained by performing interference calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs as interference, or the channel quality indication information corresponding to the first CSI-RS is obtained by performing interference calculation using the first CSI-RS as a signal and using other CSI-RSs of the at least two CSI-RSs and channel state information interference measurement CSI-IM as interference.
6. The method of claim 1, wherein the channel quality indication information is determined according to channel quality indication information corresponding to each of the at least two CSI-RSs, and wherein the channel quality indication information corresponding to each CSI-RS is obtained by using each CSI-RS as a signal and using non-zero power NZP CSI-RS for interference measurement as interference calculation, or the channel quality indication information corresponding to each CSI-RS is obtained by using each CSI-RS as a signal and using NZP CSI-RS and CSI-IM for interference measurement as interference calculation.
7. The method of claim 5, wherein the CQI information is:
channel quality indication information corresponding to at least one CSI-RS; alternatively, the first and second electrodes may be,
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median; alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
8. The method of claim 6, wherein the CQI information is:
the channel quality indication information corresponding to the at least two CSI-RSs has a smaller median;
alternatively, the first and second electrodes may be,
and the average value of the channel quality indication information corresponding to the at least two CSI-RSs respectively.
9. The method of claim 5, wherein in case that the at least two CSI-RSs include only two CSI-RSs, the channel quality indication information corresponding to a first CSI-RS is calculated by using the first CSI-RS as a signal and using a second CSI-RS as an interference, or the channel quality indication information corresponding to the first CSI-RS is calculated by using the first CSI-RS as a signal and using the second CSI-RS and the CSI-IM as an interference;
and the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS as interference calculation, or the channel quality indication information corresponding to the second CSI-RS is obtained by taking the second CSI-RS as a signal and the first CSI-RS and the CSI-IM as interference calculation.
10. The method of claim 2,
in a case where rank indication information respectively determined according to the at least two CSI-RSs is different, the first information includes rank indication information respectively determined according to each of the CSI-RSs;
under the condition that the rank indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one rank indication information;
under the condition that precoding matrix indication information respectively determined according to the at least two CSI-RSs is different, the first information comprises precoding matrix indication information respectively determined according to each CSI-RS;
and under the condition that the precoding matrix indication information respectively determined according to the at least two CSI-RSs is the same, the first information only comprises one piece of precoding matrix indication information.
11. An information reporting method is applied to a network side device, and is characterized by comprising the following steps:
receiving first information sent by a terminal, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
12. The method of claim 11, wherein the step of receiving the first information sent by the terminal is preceded by:
the CSI-RS is transmitted separately through each data stream.
13. The method of claim 11, wherein the first information further comprises at least one of rank indication information and precoding matrix indication information determined from the CSI-RS.
14. The method of claim 11, wherein the step of receiving the first information sent by the terminal is preceded by:
and sending reporting configuration information to the terminal, wherein the reporting configuration information is used for indicating the terminal to report the first information.
15. The method according to claim 11 or 12, wherein the step of receiving the first information sent by the terminal is preceded by:
and sending resource configuration information to the terminal, wherein the resource configuration information comprises at least one of resource configuration information corresponding to the CSI-RS, resource configuration information corresponding to the NZP CSI-RS for interference measurement and resource configuration information corresponding to the CSI-IM.
16. A terminal, comprising:
and the reporting module is used for sending first information to network side equipment, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
17. A network-side device, comprising:
the terminal comprises a receiving module and a sending module, wherein the receiving module is used for receiving first information sent by the terminal, and the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
18. A terminal, comprising:
the transceiver is configured to send first information to a network side device, where the first information includes resource indication information of at least two CSI-RSs measured by the terminal, and channel quality indication information determined according to the at least two CSI-RSs.
19. A network-side device, comprising:
the transceiver is used for receiving first information sent by a terminal, wherein the first information comprises resource indication information of at least two CSI-RSs measured by the terminal and channel quality indication information determined according to the at least two CSI-RSs.
20. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the computer program is characterized in that the processor implements the information reporting method according to any one of claims 1 to 10 when executing the computer program.
21. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the computer program is characterized in that the processor implements the information reporting method according to any one of claims 11 to 15 when executing the computer program.
22. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of the information reporting method according to any one of claims 1 to 15.
CN201910651221.8A 2019-07-18 2019-07-18 Information reporting method, terminal and network side equipment Pending CN112242862A (en)

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