CN105471544B - Channel quality/state indication information processing method, device, terminal and base station - Google Patents
Channel quality/state indication information processing method, device, terminal and base station Download PDFInfo
- Publication number
- CN105471544B CN105471544B CN201410391009.XA CN201410391009A CN105471544B CN 105471544 B CN105471544 B CN 105471544B CN 201410391009 A CN201410391009 A CN 201410391009A CN 105471544 B CN105471544 B CN 105471544B
- Authority
- CN
- China
- Prior art keywords
- channel quality
- indication information
- interference
- status indication
- measurement signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a channel quality/state indication information processing method, a device, a terminal and a base station, wherein the method comprises the following steps: receiving a measurement signal; determining channel quality/status indication information from the measurement signal by at least one of: receiving measurement signals on the same or different subframes according to one or more receiving methods to determine channel quality/state indication information; determining channel quality/status indication information according to different interference hypotheses and measurement signals; determining channel quality/state indication information according to the CSI process index and the measurement signal; the invention sends the determined channel quality/state indication information to the base station, and solves the problem of link self-adaptive mismatch when a receiving end uses a high-grade receiver in the related technology, thereby effectively solving the problem of link self-adaptive mismatch caused by using different receivers and effectively improving the network spectrum efficiency.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, an apparatus, a terminal, and a base station for processing channel quality/status indication information.
Background
The inter-cell interference is an inherent problem of the cellular mobile communication system, fig. 1 is a schematic diagram of a target terminal subjected to the interference of neighboring cells in the related art, and for the inter-cell interference, the conventional solution is to use frequency reuse to avoid the interference problem between neighboring cells by allowing the neighboring cells to use different carrier frequencies. In an Orthogonal Frequency Division Multiplexing (OFDM) system, the frequency Multiplexing coefficient is 1, that is, the neighboring cells use the same carrier frequency, which also complicates the inter-cell interference problem compared with the conventional frequency Multiplexing system. Long Term Evolution (LTE) is a system based on OFDM technology, mainly adopts inter-cell interference randomization, interference avoidance and coordination techniques to solve the interference problem, and implements interference avoidance at the transmitting side through precoding, cooperative scheduling and other manners at the network side. However, interference cooperation based on the sender greatly depends on the accuracy of the fed back Channel State Information (CSI). The method is limited by the overhead of feedback signaling and the influence of feedback processing delay, and meanwhile, the effect of inter-cell cooperation can be greatly influenced by the delay problem of a backhaul link.
In the LTE system, Common Reference Signal (CRS) is used for pilot measurement and data demodulation, i.e. all users use CRS for channel estimation. When the CRS-based precoding processing method is adopted, the transmitting end needs to additionally notify the receiving end of the information of the specific precoding matrix (which may also be referred to as precoding weight) used during data transmission, and the overhead of the pilot frequency is high. In addition, in a Multi-user Multi-input Multi-output (MU-MIMO) system, since a plurality of terminals use the same CRS, orthogonality of pilots cannot be achieved, and thus interference cannot be estimated.
In an enhanced Long Term Evolution (LTE-a) system, in order to reduce pilot overhead and improve channel estimation accuracy, pilot measurement and data demodulation functions are separated, and two types of reference signals are defined respectively: demodulation Reference Signal (DMRS) and Channel State Information Reference Signal (CSI-RS). The CSI-RS is mainly used for Channel measurement to obtain and feed back Channel quality Information (CQI for short), so that the base station side can use the Information to complete user scheduling and implement adaptive allocation of a Modulation and coding Scheme (MCS for short), and precoding Information is not carried in CSI-RS transmission; the DMRS is mainly used for Channel estimation of a Physical Downlink Shared Channel (PDSCH) and an enhanced Physical Downlink Control Channel (ePDCCH) to complete demodulation of a data/Control Channel, and transmission of the DMRS carries precoding information of the PDSCH/ePDCCH. LTE and LTE-a systems can be divided into Frequency Division Duplex (FDD) and Time Division Duplex (TDD) systems according to the difference between uplink and downlink duplexing modes, and the CSI-RS and DMRS patterns of FDD and TDD systems are different.
In the research of advanced receivers at the receiving end, the advanced receivers can be mainly classified into several types: an enhanced-Minimum Mean Square Error-interference rejection Combining (E-LMMSE-IRC) receiver, an Interference Cancellation (IC) receiver, and a Maximum Likelihood (ML) receiver. For an E-MMSE-IRC receiver (assuming DMRS-based), the network side needs to provide information on a DMRS port used by an interfering UE and initialization parameters of the DMRS (including a scrambling code ID, a virtual cell ID, a physical cell ID, and the like) to a target UE, and for an IC and ML receiver, the network side needs to provide modulation mode or MCS information of an interference source in addition to the above information required by MMSE-IRC.
In Long Term Evolution (Long Term Evolution, abbreviated as LTE) and Long Term Evolution advanced (LTE-a) systems, link adaptation adopts a method that combines inner loop link adaptation and outer loop adaptation. The Inner Loop Link Adaptation (ila) is first responsible for selecting the appropriate MCS for the UE. The selection is based on a mapping between the measured signal to interference plus noise ratio (SINR) and the most appropriate MCS to allocate. The ila does not always adapt to the channel well (e.g., channel fast-change) for various reasons, and therefore an Outer Loop Link Adaptation (OLLA) function is also necessary. OLLA aims to achieve a target block error rate BLER by adjusting MCS selection, for example, in LTE, the target BLER is 0.1, and a base station may determine a current BLER by counting HARQ-ACKs fed back by a UE, so this method is based on HARQ-ACK feedback information of a first transmission of Hybrid Automatic Retransmission (HARQ).
In LTE and LTE-a, the control signaling that needs to be transmitted in uplink has three forms of correct/incorrect response messages (ACK/NACK), and reflects downlink physical Channel State Information (CSI): channel quality indication (CQI for short), precoding matrix indication (PMI for short), and Rank indication (RI for short).
The Channel Quality Indication (CQI) plays a key role in the link adaptation process, which is a message sent by the UE to the eNodeB to describe the current downlink channel quality of the UE. The UE may measure the reference symbols sent by the base station and then obtain the CQI through calculation.
The CQI is an index for measuring the quality of the downlink channel. In the 36-213 protocol, the CQI is represented by integer values of 0-15, which represent different CQI levels, and the different CQIs correspond to respective MCSs, as shown in table 1. The selection of CQI level should follow the following criteria:
the selected CQI level should be such that the block error rate of the PDSCH transport block corresponding to the CQI under the corresponding MCS does not exceed 0.1.
Based on one unrestricted detection interval in the frequency domain and the time domain, the UE will obtain the highest CQI value, corresponding to each maximum CQI value sent in the uplink subframe n, with a sequence number range of CQI of 1-15, and satisfy the following condition, if CQI sequence number 1 does not satisfy the condition, CQI sequence number 0: a single PDSCH transport block, which has an error rate BLER not exceeding 0.1 when received, contains joint information: the modulation mode and the transport block size correspond to a CQI sequence number and a set of occupied downlink physical resource blocks, i.e., CQI reference resources. The highest CQI value is the largest CQI value when BLER is not greater than 0.1, which is beneficial to controlling resource allocation. In general, the smaller the CQI value, the more resources are occupied and the better the BLER performance. Wherein BLER is the error rate of the transport block, BLER being equal to the number of correctly transmitted TBs divided by the total number of transmitted TBs;
associated information with transport block size and modulation scheme corresponding to a CQI sequence number, if: these joint information of PDSCH transmission in CQI reference resources can be signaled according to the relevant transport block size, in addition:
the modulation scheme is characterized by the CQI index and uses the joint information including transport block size and modulation scheme in the reference resource, which results in an effective channel coding rate that is the closest possible effective channel coding rate that can be characterized by the CQI index. When there is more than one such joint information, which all may yield the same approximate effective channel coding rate characterized by the CQI sequence number, the joint information with the smallest transport block size is used.
Each CQI number corresponds to a modulation scheme and a transport block size, and the correspondence between the transport block size and the NPRB is shown in table 1. The coding rate can be calculated according to the transport block size and the size of the NPRB.
TABLE 1 4 bit CQI TABLE
In the current research of the advanced receiver, the receiving end only uses the advanced receiver to demodulate when demodulating the target data, and uses the conventional receiver when measuring the channel quality and calculating the CQI, for example, the maximal ratio combining receiver, the minimum mean square error-interference suppression combining receiver, the zero forcing receiver, etc., therefore, the CQI fed back by the receiving end is not the highest CQI when the BLER is guaranteed to be 0.1, which causes the link adaptation mismatch, and even if the OLLA is used to perform the outer loop adjustment, the link adaptation mismatch problem cannot be solved well because the adjustment speed of the OLLA is slow.
Therefore, in the related art, there is a problem of link adaptation mismatch when the receiving end uses an advanced receiver.
Disclosure of Invention
The invention provides a channel quality/state indication information processing method, a device, a terminal and a base station, which are used for at least solving the problem of link self-adaption mismatch when a receiving end uses an advanced receiver in the related art.
According to an aspect of the present invention, there is provided a channel quality/status indication information processing method, including: receiving a measurement signal; determining channel quality/status indication information from the measurement signal by at least one of: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal; and sending the determined channel quality/state indication information to a base station.
Preferably, the receiving method comprises at least one of: with and without interference cancellation/suppression.
Preferably, the measurement signal comprises at least one of: common reference signals, channel state information reference signals, interference measurement resource signals, data shared channel signals.
Preferably, the different subframes include: two CSI subframe sets.
Preferably, the two CSI subframe sets include: a set of subframes with almost empty subframe ABS configuration information and a set of subframes without ABS configuration information.
Preferably, determining channel quality/status indication information from the measurement signal comprises at least one of: determining a first channel quality/status indication information according to the measurement signal received without using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determining a second channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of the CSI subframe set 1; determining a first channel quality/status indication information according to the measurement signal received without using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determining a second channel quality/status indication information according to the measurement signal received with the interference cancellation/suppression method on the subframe of the CSI subframe set 1; determining a first channel quality/status indication information according to the measurement signal received by using an interference elimination/suppression method on the subframe of the CSI subframe set 0, and determining a second channel quality/status indication information according to the measurement signal received by not using the interference elimination/suppression method on the subframe of the CSI subframe set 1; on the subframes of the CSI subframe set 0, a first channel quality/state indication information is determined according to the measurement signal received by using the interference elimination/suppression method, and on the subframes of the CSI subframe set 1, a second channel quality/state indication information is determined according to the measurement signal received by using the interference elimination/suppression method.
Preferably, the interference hypothesis comprises at least one of: there is intra-cell interference for multi-user reuse; interference among cells with multi-user multiplexing exists; there is no interference in the cell for multi-user multiplexing; there is no inter-cell interference for multi-user multiplexing.
Preferably, the interference hypothesis comprises at least one of: the interference is based on QPSK modulation, the interference is based on 16QAM modulation, the interference is based on 64QAM modulation, the interference is based on 256QAM modulation, the interference is based on a transmission mode of a demodulation reference signal, and the interference is based on a transmission mode of a common reference signal.
Preferably, determining channel quality/status indication information from the measurement signal comprises at least one of: when the transmission mode is configured as the transmission mode 10, determining a plurality of kinds of channel quality/state indication information through configuration information or indexes of a plurality of kinds of channel state information processes; when the transmission mode is configured as one of transmission mode 1 to transmission mode 9, a first kind of channel quality/status indication information is determined on subframes of CSI subframe set 0, and a second kind of channel quality/status indication information is determined on subframes of CSI subframe set 1.
According to another aspect of the present invention, there is provided a channel quality/status indication information processing method, including: receiving channel quality/state indication information sent by a terminal, wherein the channel quality/state indication information is determined by the terminal according to the measurement signal by at least one of the following modes: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal; determining a modulation coding mode of data according to the channel quality/state indication information; and sending the determined modulation coding mode to the terminal.
According to still another aspect of the present invention, there is provided a channel quality/status indication information processing apparatus comprising: the first receiving module is used for receiving the measuring signal; a first determining module, configured to determine channel quality/status indication information according to the measurement signal by at least one of: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal; and the first sending module is used for sending the determined channel quality/state indication information to a base station.
Preferably, the first determination module comprises at least one of: a first determining unit, configured to determine a first channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of CSI subframe set 0, and determine a second channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of CSI subframe set 1; a second determining unit, configured to determine a first channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of CSI subframe set 0, and determine a second channel quality/status indication information according to the measurement signal received with the interference cancellation/suppression method on the subframe of CSI subframe set 1; a third determining unit, configured to determine first channel quality/status indication information according to the measurement signal received by using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determine second channel quality/status indication information according to the measurement signal received by not using the interference cancellation/suppression method on the subframe of the CSI subframe set 1; a fourth determining unit, configured to determine the first channel quality/status indication information according to the measurement signal received by using the interference cancellation/suppression method on the subframe of CSI subframe set 0, and determine the second channel quality/status indication information according to the measurement signal received by using the interference cancellation/suppression method on the subframe of CSI subframe set 1.
Preferably, the first determination module comprises at least one of: a fifth determining unit, configured to determine a plurality of channel quality/status indication information through configuration information or indexes of a plurality of channel status information processes when the transmission mode is configured as the transmission mode 10; a sixth determining unit, configured to determine the first channel quality/status indication information on the subframes of the CSI subframe set 0 and the second channel quality/status indication information on the subframes of the CSI subframe set 1, when the transmission mode is configured as one of transmission mode 1 to transmission mode 9.
According to a further aspect of the present invention, there is provided a terminal, characterized by comprising the apparatus of any one of the above.
According to still another aspect of the present invention, there is provided a channel quality/status indication information processing apparatus including: a second receiving module, configured to receive channel quality/status indication information sent by a terminal, where the channel quality/status indication information is determined by the terminal according to the measurement signal by at least one of the following manners: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal; a second determining module, configured to determine a modulation and coding scheme of data according to the channel quality/status indication information; and the second sending module is used for sending the determined modulation coding mode to the terminal.
According to another aspect of the present invention, there is provided a base station including the apparatus described above.
By the invention, the method comprises the steps of receiving a measuring signal; determining channel quality/status indication information from the measurement signal by at least one of: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal; and sending the determined channel quality/state indication information to a base station, so that the problem of link self-adaption mismatch when a receiving end uses a high-grade receiver in the related technology is solved, the problem of link self-adaption mismatch caused by using different receivers is effectively solved, and the network spectrum efficiency is effectively improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a diagram illustrating a target terminal suffering from interference of a neighboring cell in the related art;
fig. 2 is a flowchart of a channel quality/status indication information processing method according to an embodiment of the present invention;
fig. 3 is a flowchart of a channel quality/status indication information processing method according to an embodiment of the present invention;
fig. 4 is a block diagram of a first channel quality/status indication information processing apparatus according to an embodiment of the present invention;
fig. 5 is a block diagram of a preferred structure of the first determining module 44 in the first channel quality/status indication information processing apparatus according to the embodiment of the present invention;
fig. 6 is a block diagram of a preferred structure of the first determining module 44 in the first channel quality/status indication information processing apparatus according to the embodiment of the present invention;
fig. 7 is a block diagram of a structure of a terminal according to an embodiment of the present invention;
fig. 8 is a block diagram showing the structure of a second channel quality/status indication information processing apparatus according to an embodiment of the present invention;
fig. 9 is a block diagram of a base station according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the present embodiment, a channel quality/status indication information processing method is provided, and fig. 2 is a flowchart of a channel quality/status indication information processing method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, receiving a measurement signal, wherein the measurement signal may include a plurality of types, for example, at least one of the following: a common reference signal, a channel state information reference signal, an interference measurement resource signal, a data sharing channel signal;
step S204, determining the channel quality/state indication information according to the measurement signal by at least one of the following methods: the channel quality/status indication information is determined by receiving measurement signals on the same or different subframes according to one or more reception methods (e.g., which may correspond to one or more receivers), wherein the reception methods may include a variety of, for example, at least one of: use, no interference cancellation/suppression; the Channel quality/status indication Information is determined according to different interference hypotheses and measurement signals, where the different subframes may be multiple, for example, two Channel Status Information (CSI) subframe sets may be used, which is exemplified as follows: subframes of Subframe set CSI0, subframes of CSI Subframe set 1, Subframe sets with Almost Blank Subframe (ABS) configuration information, Subframe sets without ABS configuration information; determining the channel quality/state indication information according to the CSI process index and the measurement signal;
step S106, the determined channel quality/state indication information is sent to the base station.
Through the steps, the user terminal feeds back various channel quality/state indication information, so that the problem of link self-adaption mismatch when a receiving end uses a high-level receiver in the related technology is solved, the problem of link self-adaption mismatch caused by using different receivers is effectively solved, and the network spectrum efficiency is effectively improved.
The channel quality/status indication information may be determined from the measurement signal in a variety of ways, for example, at least one of: for example, on the subframe of CSI subframe set 0, a first channel quality/status indication information is determined according to the measurement signal received without using the interference cancellation/suppression method, and on the subframe of CSI subframe set 1, a second channel quality/status indication information is determined according to the measurement signal received without using the interference cancellation/suppression method; for another example, on the subframe of CSI subframe set 0, a first channel quality/status indication information is determined according to the measurement signal received without using the interference cancellation/suppression method, and on the subframe of CSI subframe set 1, a second channel quality/status indication information is determined according to the measurement signal received with the interference cancellation/suppression method; for example, on the subframe of CSI subframe set 0, a first channel quality/status indication information is determined according to the measurement signal received by using the interference cancellation/suppression method, and on the subframe of CSI subframe set 1, a second channel quality/status indication information is determined according to the measurement signal received by not using the interference cancellation/suppression method; for example, on the subframe of CSI subframe set 0, the first channel quality/status indication information is determined according to the measurement signal received by using the interference cancellation/suppression method, and on the subframe of CSI subframe set 1, the second channel quality/status indication information is determined according to the measurement signal received by using the interference cancellation/suppression method.
The interference assumption may also be in various forms, for example, interference in a cell where multi-user multiplexing exists; interference among cells with multi-user multiplexing exists; or there may be no intra-cell interference for multi-user multiplexing; there may also be no inter-cell interference for multi-user multiplexing; the interference is based on QPSK modulation; the interference is based on 16QAM modulation; the interference is based on 64QAM modulation; the interference is based on 256QAM modulation; the interference is based on a transmission mode of the demodulation reference signal; the interference is based on the transmission pattern of the common reference signal.
In addition, when determining the channel quality/status indication information according to the measurement signal, according to the difference of the transmission mode, it can also adopt various ways, for example, when the transmission mode is configured as the transmission mode 10, it determines various channel quality/status indication information through the configuration information or index of various channel status information processes; for another example, when the transmission mode is configured as one of transmission mode 1 to transmission mode 9, a first channel quality/status indication information is determined on the subframe of CSI subframe set 0, and a second channel quality/status indication information is determined on the subframe of CSI subframe set 1;
fig. 3 is a flowchart of a channel quality/status indication information processing method according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the steps of:
step S302, receiving channel quality/status indication information sent by the terminal, wherein the channel quality/status indication information is determined by the terminal according to the measurement signal by at least one of the following manners: receiving measurement signals on the same or different subframes according to one or more receiving methods to determine channel quality/state indication information; determining channel quality/status indication information according to different interference hypotheses and measurement signals; determining channel quality/state indication information according to the CSI process index and the measurement signal;
step S304, determining the modulation coding mode of the data according to the channel quality/state indication information;
and step S306, sending the determined modulation coding mode to the terminal.
Through the steps, the user terminal feeds back various channel quality/state indication information, so that the problem of link self-adaption mismatch when a receiving end uses a high-level receiver in the related technology is solved, the problem of link self-adaption mismatch caused by using different receivers is effectively solved, and the network spectrum efficiency is effectively improved.
In this embodiment, a channel quality/status indication information processing apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted for brevity. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 4 is a block diagram of a first channel quality/status indication information processing apparatus according to an embodiment of the present invention, which includes a first receiving module 42, a first determining module 44 and a first transmitting module 46, as shown in fig. 4, and is explained below.
A first receiving module 42, configured to receive a measurement signal; a first determining module 44, connected to the first receiving module 42, for determining the channel quality/status indication information according to the measurement signal by at least one of: receiving measurement signals on the same or different subframes according to one or more receiving methods to determine channel quality/state indication information; determining channel quality/status indication information according to different interference hypotheses and measurement signals; determining channel quality/state indication information according to the CSI process index and the measurement signal; a first sending module 46, connected to the first determining module 44, for sending the determined channel quality/status indication information to the base station.
Fig. 5 is a block diagram of a preferred structure of a first determining module 44 in a first apparatus for processing channel quality/status indication information according to an embodiment of the present invention, as shown in fig. 5, the first determining module 44 includes at least one of the following: a first determining unit 52, a second determining unit 54, a third determining unit 56, and a fourth determining unit 58, which will be described below for the first determining module 44.
A first determining unit 52, configured to determine first channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determine second channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of the CSI subframe set 0; a second determining unit 54, configured to determine, on subframes of the CSI subframe set 0, first channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method, and determine, on subframes of the CSI subframe set 0, second channel quality/status indication information according to the measurement signal received with the interference cancellation/suppression method; a third determining unit 56, configured to determine a first channel quality/status indication information according to the measurement signal received by using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determine a second channel quality/status indication information according to the measurement signal received by not using the interference cancellation/suppression method on the subframe of the CSI subframe set 1; a third determining unit 58, configured to determine the first channel quality/status indication information according to the measurement signal received by using the interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determine the second channel quality/status indication information according to the measurement signal received by using the interference cancellation/suppression method on the subframe of the CSI subframe set 0.
Fig. 6 is a block diagram of a preferred structure of the first determining module 44 in the first apparatus for processing channel quality/status indication information according to the embodiment of the present invention, as shown in fig. 6, the first determining module 44 includes at least one of the following: a fifth determining unit 62 and a sixth determining unit 64, which will be described below with respect to the first determining module 44.
A fifth determining unit 62, configured to determine a plurality of channel quality/status indication information through configuration information or indexes of a plurality of channel status information processes when the transmission mode is configured as the transmission mode 10; a sixth determining unit 64, configured to determine the first channel quality/status indication information on the subframes of CSI subframe set 0 and the second channel quality/status indication information on the subframes of CSI subframe set 1, when the transmission mode is configured as one of transmission mode 1 to transmission mode 9.
Fig. 7 is a block diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 7, the terminal 70 includes any one of the first channel quality/status indication information processing means 72.
Fig. 8 is a block diagram of a second channel quality/status indication information processing apparatus according to an embodiment of the present invention, which includes a second receiving module 82, a second determining module 84, and a second transmitting module 86, as shown in fig. 8, and is explained below.
A second receiving module 82, configured to receive channel quality/status indication information sent by the terminal, where the channel quality/status indication information is determined by the terminal according to the measurement signal by at least one of the following manners: receiving measurement signals on the same or different subframes according to one or more receiving methods to determine channel quality/state indication information; determining channel quality/status indication information according to different interference hypotheses and measurement signals; determining channel quality/state indication information according to the CSI process index and the measurement signal; a second determining module 84, connected to the second receiving module 82, for determining a modulation and coding scheme of the data according to the channel quality/status indication information; and a second sending module 86, connected to the second determining module 84, for sending the determined modulation and coding scheme to the terminal.
Fig. 9 is a block diagram of a base station according to an embodiment of the present invention, and as shown in fig. 9, the base station 90 includes any one of the second channel quality/status indication information processing device 92.
In view of the above problems in the related art, in the present embodiment, a processing scheme of feedback information is provided, which is capable of solving the problem of link adaptation mismatch existing when a receiving end uses an advanced receiver. The scheme is applied to the terminal and comprises the following steps: the terminal receives the measuring signal and determines the channel quality/state indication information according to the measuring signal; the terminal receives measurement signals on the same subframe or different subframes by using one or more receiving methods to determine multiple kinds of channel quality/state indication information, or the terminal determines the multiple kinds of channel quality/state indication information based on the measurement signals on different subframes, or the terminal determines the multiple kinds of channel quality/state indication information based on multiple different interference hypotheses; wherein the measurement signal comprises at least one of: a common reference signal, a channel state information reference signal, an interference measurement resource signal, a data sharing channel signal;
the terminal transmits channel quality/status indication information to the base station.
The receiver referred to above includes a plurality of reception methods, which may or may not use interference cancellation/suppression, for example.
The terminal determines various channel quality/status indication information based on signals on different subframes, which may also be in various forms, for example, subframes including CSI subframe set 0, CSI subframe set 1, subframes having almost empty subframe ABS configuration information, subframes having no ABS configuration information.
The terminal determines various channel quality/status indication information based on various interference hypotheses, wherein the interference hypotheses may also include various types, and for example, may include at least one of the following: there is multi-user multiplexing or intra-cell or inter-cell interference, and there is no multi-user multiplexing or intra-cell or inter-cell interference, where the interference may be based on multiple modulation schemes, for example, QPSK modulation, 16QAM modulation, 64QAM modulation, 256QAM modulation, or a transmission mode based on demodulation reference signals, or a transmission mode based on common reference signals.
In addition, the terminal determines that one type of channel quality/status indication information may include multiple types, for example, at least one of the following types:
the terminal receives the measuring signal without using an interference elimination/suppression method on the subframe of the CSI subframe set 0 to determine one kind of channel quality/state indication information, and receives the measuring signal without using the interference elimination/suppression method on the subframe of the CSI subframe set 1 to determine the other kind of channel quality/state indication information; on the subframe of the CSI subframe set 1, a channel quality/state indication information is determined by receiving the measurement signal without using an interference elimination/suppression method, and on the subframe of the CSI subframe set 1, another channel quality/state indication information is determined by receiving the measurement signal by using the interference elimination/suppression method; and on the subframes of the CSI subframe set 1, receiving the measuring signals by using an interference elimination/suppression method to determine one kind of channel quality/state indication information, and on the subframes of the CSI subframe set 1, receiving the measuring signals by using the interference elimination/suppression method to determine the other kind of channel quality/state indication information.
On the other hand, when the terminal is configured in the transmission mode 10, various Channel quality/status indication information may be determined through configuration information or indexes of various CSI (Channel status information) processes; when the terminal is configured as one of transmission mode 1 to transmission mode 9, one kind of channel quality/status indication information may be determined on the subframe of CSI subframe set 0, and the other kind of channel quality/status indication information may be determined on the subframe of CSI subframe set 1.
The method for processing the feedback information can also be applied to a base station, and comprises the following steps: the base station receives various kinds of channel quality/state indication information sent by the terminal, determines the modulation coding mode MCS of the data information and indicates the MCS to the terminal.
The processing method based on the feedback information mainly comprises the following steps: receiving a measuring signal, and determining channel quality/state indication information according to the measuring signal; wherein the measurement signal comprises: a common reference signal, a channel state information reference signal, an interference measurement resource signal, a data sharing channel signal; the terminal respectively uses one or more receiving methods to receive signals on the same subframe or different subframes to determine various kinds of channel quality/state indication information, or the terminal determines various kinds of channel quality/state indication information based on measurement signals on different subframes, or the terminal determines various kinds of channel quality/state indication information based on various different interference hypotheses; the terminal sends the channel quality/state indication information to the base station, the base station receives the multiple kinds of channel quality/state indication information sent by the terminal, determines the modulation coding mode MCS of the data information and indicates the MCS to the terminal.
Therefore, the user terminal feeds back various channel quality/state indication information, the problem of link self-adaption mismatch caused by the fact that the user terminal uses different types of receivers in a data demodulation stage and a channel measurement stage is solved, the technology of the advanced receiver can be widely applied to downlink transmission of LTE-A, and therefore the spectrum efficiency of a network is improved.
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
Example one
In the method for processing feedback information in the preferred embodiment, the terminal receives the measurement signal without using an interference cancellation/suppression method, determines CQI1 on CSI subframe set 0 subframe, and determines CQI2 on CSI subframe set 1 subframe;
or the terminal receives the measurement signal on the subframe of the CSI subframe set 0 without using the interference elimination/suppression method to determine the CQI1, and receives the measurement signal on the subframe of the CSI subframe set 1 by using the interference elimination/suppression method to determine the CQI 2;
or the terminal receives the measurement signal on the subframe of the CSI subframe set 0 by using an interference elimination/suppression method to determine the CQI1, and receives the measurement signal on the subframe of the CSI subframe set 1 by not using the interference elimination/suppression method to determine the CQI 2;
or the terminal receives the measurement signal on the subframe of the CSI subframe set 0 by using the interference elimination/suppression method to determine the CQI1, and receives the measurement signal on the subframe of the CSI subframe set 1 by using the interference elimination/suppression method to determine the CQI 2;
then the terminal feeds back the CQI1 and the CQI2 to the base station, and the base station determines the modulation coding mode MCS of the data information according to the CQI1 and the CQI2 and indicates the MCS to the terminal through a downlink control signaling.
Wherein the measurement signal comprises at least one of: common reference signals, channel state information reference signals, interference measurement resource signals, data shared channel signals.
Example two
In the preferred embodiment, when the terminal is configured in the transmission mode 10, the various channel quality/status indication Information is determined by the configuration Information or the index of the various CSI (channel state Information) processes;
for example, a first channel quality/state indication information is determined on a CSI process with index 0 without using an interference cancellation/suppression method, and a second channel quality/state indication information is determined on a CSI process with index 1 using an interference cancellation/suppression method; or, determining first channel quality/state indication information by using an interference elimination/suppression method on the CSI process with the index of 0, and determining second channel quality/state indication information by using no interference elimination/suppression method on the CSI process with the index of 1;
when the terminal is configured to be one of transmission mode 1 to transmission mode 9, determining one channel quality/state indication information on the subframe of the CSI subframe set 0, and determining another channel quality/state indication information on the subframe of the CSI subframe set 1;
EXAMPLE III
In the preferred embodiment, the terminal determines a plurality of channel quality/status indication information based on a plurality of different interference hypotheses, wherein the interference hypotheses include: there is multi-user multiplexing or intra-cell or inter-cell interference, there is no multi-user multiplexing or intra-cell or inter-cell interference, interference is based on QPSK modulation, interference is based on 16QAM modulation, interference is based on 64QAM modulation, interference is based on 256QAM modulation, interference is based on a transmission mode of a demodulation reference signal, and interference is based on a transmission mode of a common reference signal.
For example, the terminal determines CQI1 based on the presence of multi-user multiplexing or intra-cell or inter-cell interference, CQI2 based on the absence of multi-user multiplexing or intra-cell or inter-cell interference; alternatively, the CQI1 is determined on the assumption that the interference is QPSK modulation, and the CQI2 is determined on the assumption that the interference is 16QAM or 64QAM modulation; or CQI1 assuming the interference is based on the transmission mode of the demodulation reference signal and CQI2 assuming the interference is based on the common reference signal.
And then the terminal feeds back the CQI1 and the CQI2 to the base station, and the base station determines the coding modulation mode MCS of the data information according to the CQI1 and the CQI2 and indicates the MCS to the terminal through a downlink control signaling.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A method for processing channel quality/status indication information, comprising:
receiving a measurement signal;
determining channel quality/status indication information from the measurement signal by at least one of: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal;
sending the determined channel quality/state indication information to a base station;
wherein the receiving method comprises at least one of the following:
use, no interference cancellation/suppression;
the interference hypothesis includes at least one of:
there is intra-cell interference for multi-user reuse; interference among cells with multi-user multiplexing exists; there is no interference in the cell for multi-user multiplexing; interference among cells multiplexed by multiple users does not exist; the interference is based on QPSK modulation, the interference is based on 16QAM modulation, the interference is based on 64QAM modulation, the interference is based on 256QAM modulation, the interference is based on a transmission mode of a demodulation reference signal, and the interference is based on a transmission mode of a common reference signal;
wherein determining channel quality/status indication information from the measurement signal comprises at least one of:
when the transmission mode is configured as the transmission mode 10, determining a plurality of kinds of channel quality/state indication information through configuration information or indexes of a plurality of kinds of channel state information processes;
when the transmission mode is configured as one of transmission mode 1 to transmission mode 9, a first kind of channel quality/status indication information is determined on subframes of CSI subframe set 0, and a second kind of channel quality/status indication information is determined on subframes of CSI subframe set 1.
2. The method of claim 1, wherein the measurement signal comprises at least one of:
common reference signals, channel state information reference signals, interference measurement resource signals, data shared channel signals.
3. The method of claim 1, wherein the different subframes comprise:
two CSI subframe sets.
4. The method of claim 3, wherein the two CSI subframe sets comprise:
a set of subframes with almost empty subframe ABS configuration information and a set of subframes without ABS configuration information.
5. A method according to claim 1 or claim 3, wherein determining channel quality/status indication information from the measurement signals comprises at least one of:
determining a first channel quality/status indication information according to the measurement signal received without using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determining a second channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of the CSI subframe set 1;
determining a first channel quality/status indication information according to the measurement signal received without using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determining a second channel quality/status indication information according to the measurement signal received with the interference cancellation/suppression method on the subframe of the CSI subframe set 1;
determining a first channel quality/status indication information according to the measurement signal received by using an interference elimination/suppression method on the subframe of the CSI subframe set 0, and determining a second channel quality/status indication information according to the measurement signal received by not using the interference elimination/suppression method on the subframe of the CSI subframe set 1;
on the subframes of the CSI subframe set 0, a first channel quality/state indication information is determined according to the measurement signal received by using the interference elimination/suppression method, and on the subframes of the CSI subframe set 1, a second channel quality/state indication information is determined according to the measurement signal received by using the interference elimination/suppression method.
6. A method for processing channel quality/status indication information, comprising:
receiving channel quality/state indication information sent by a terminal, wherein the channel quality/state indication information is determined by the terminal according to a measurement signal through at least one of the following modes: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal;
determining a modulation coding mode of data according to the channel quality/state indication information;
sending the determined modulation coding mode to the terminal;
the receiving method comprises at least one of the following steps:
use, no interference cancellation/suppression;
the interference hypothesis includes at least one of:
there is intra-cell interference for multi-user reuse; interference among cells with multi-user multiplexing exists; there is no interference in the cell for multi-user multiplexing; interference among cells multiplexed by multiple users does not exist; the interference is based on QPSK modulation, the interference is based on 16QAM modulation, the interference is based on 64QAM modulation, the interference is based on 256QAM modulation, the interference is based on a transmission mode of a demodulation reference signal, and the interference is based on a transmission mode of a common reference signal;
wherein the channel quality/status indication information is determined by one of:
when the transmission mode is configured as the transmission mode 10, determining a plurality of kinds of channel quality/state indication information through configuration information or indexes of a plurality of kinds of channel state information processes;
when the transmission mode is configured as one of transmission mode 1 to transmission mode 9, a first kind of channel quality/status indication information is determined on subframes of CSI subframe set 0, and a second kind of channel quality/status indication information is determined on subframes of CSI subframe set 1.
7. A channel quality/status indication information processing apparatus, comprising:
the first receiving module is used for receiving the measuring signal;
a first determining module, configured to determine channel quality/status indication information according to the measurement signal by at least one of: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal;
a first sending module, configured to send the determined channel quality/status indication information to a base station;
wherein the first receiving module is configured to receive the measurement signal by at least one of:
use, no interference cancellation/suppression;
the interference hypothesis includes at least one of:
there is intra-cell interference for multi-user reuse; interference among cells with multi-user multiplexing exists; there is no interference in the cell for multi-user multiplexing; interference among cells multiplexed by multiple users does not exist; the interference is based on QPSK modulation, the interference is based on 16QAM modulation, the interference is based on 64QAM modulation, the interference is based on 256QAM modulation, the interference is based on a transmission mode of a demodulation reference signal, and the interference is based on a transmission mode of a common reference signal;
wherein the first determination module comprises at least one of:
a fifth determining unit, configured to determine a plurality of channel quality/status indication information through configuration information or indexes of a plurality of channel status information processes when the transmission mode is configured as the transmission mode 10;
a sixth determining unit, configured to determine the first channel quality/status indication information on the subframes of the CSI subframe set 0 and the second channel quality/status indication information on the subframes of the CSI subframe set 1, when the transmission mode is configured as one of transmission mode 1 to transmission mode 9.
8. The apparatus of claim 7, wherein the first determining module comprises at least one of:
a first determining unit, configured to determine a first channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of CSI subframe set 0, and determine a second channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of CSI subframe set 1;
a second determining unit, configured to determine a first channel quality/status indication information according to the measurement signal received without using the interference cancellation/suppression method on the subframe of CSI subframe set 0, and determine a second channel quality/status indication information according to the measurement signal received with the interference cancellation/suppression method on the subframe of CSI subframe set 1;
a third determining unit, configured to determine first channel quality/status indication information according to the measurement signal received by using an interference cancellation/suppression method on the subframe of the CSI subframe set 0, and determine second channel quality/status indication information according to the measurement signal received by not using the interference cancellation/suppression method on the subframe of the CSI subframe set 1;
a fourth determining unit, configured to determine the first channel quality/status indication information according to the measurement signal received by using the interference cancellation/suppression method on the subframe of CSI subframe set 0, and determine the second channel quality/status indication information according to the measurement signal received by using the interference cancellation/suppression method on the subframe of CSI subframe set 1.
9. A terminal, characterized in that it comprises the apparatus of any one of claims 7 to 8.
10. A channel quality/status indication information processing apparatus, comprising:
a second receiving module, configured to receive channel quality/status indication information sent by a terminal, where the channel quality/status indication information is determined by the terminal according to a measurement signal by at least one of the following manners: receiving the measurement signal on the same or different sub-frames according to one or more receiving methods to determine the channel quality/state indication information; determining the channel quality/status indication information in dependence of different interference hypotheses and the measurement signal; determining the channel quality/state indication information according to a Channel State Information (CSI) process index and the measurement signal;
a second determining module, configured to determine a modulation and coding scheme of data according to the channel quality/status indication information;
a second sending module, configured to send the determined modulation and coding scheme to the terminal;
wherein, the second receiving module is configured to receive the channel quality/status indication information sent by the terminal by at least one of:
use, no interference cancellation/suppression;
the interference hypothesis includes at least one of:
there is intra-cell interference for multi-user reuse; interference among cells with multi-user multiplexing exists; there is no interference in the cell for multi-user multiplexing; interference among cells multiplexed by multiple users does not exist; the interference is based on QPSK modulation, the interference is based on 16QAM modulation, the interference is based on 64QAM modulation, the interference is based on 256QAM modulation, the interference is based on a transmission mode of a demodulation reference signal, and the interference is based on a transmission mode of a common reference signal;
wherein the channel quality/status indication information is determined by one of:
when the transmission mode is configured as the transmission mode 10, determining a plurality of kinds of channel quality/state indication information through configuration information or indexes of a plurality of kinds of channel state information processes;
when the transmission mode is configured as one of transmission mode 1 to transmission mode 9, a first kind of channel quality/status indication information is determined on subframes of CSI subframe set 0, and a second kind of channel quality/status indication information is determined on subframes of CSI subframe set 1.
11. A base station comprising the apparatus of claim 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391009.XA CN105471544B (en) | 2014-08-08 | 2014-08-08 | Channel quality/state indication information processing method, device, terminal and base station |
| PCT/CN2015/077537 WO2016019741A1 (en) | 2014-08-08 | 2015-04-27 | Method for processing channel quality/state indication information, apparatus, terminal and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391009.XA CN105471544B (en) | 2014-08-08 | 2014-08-08 | Channel quality/state indication information processing method, device, terminal and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105471544A CN105471544A (en) | 2016-04-06 |
| CN105471544B true CN105471544B (en) | 2020-03-31 |
Family
ID=55263104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410391009.XA Active CN105471544B (en) | 2014-08-08 | 2014-08-08 | Channel quality/state indication information processing method, device, terminal and base station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105471544B (en) |
| WO (1) | WO2016019741A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733553B (en) * | 2016-08-12 | 2022-01-28 | 中兴通讯股份有限公司 | Transmission method and device and reception method and device for transmission block |
| WO2020056559A1 (en) | 2018-09-17 | 2020-03-26 | Oppo广东移动通信有限公司 | Information transmission method, device, and storage system |
| WO2020220374A1 (en) * | 2019-05-02 | 2020-11-05 | Qualcomm Incorporated | Coefficient determination for type-ii compressed csi reporting with reduced overhead |
| CN112671510B (en) * | 2020-12-21 | 2022-11-18 | 海能达通信股份有限公司 | Channel quality indication feedback method, adaptive modulation coding method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986586A (en) * | 2010-11-09 | 2011-03-16 | 中兴通讯股份有限公司 | Method and user equipment (UE) for measuring and feeding back channel quality |
| CN103391158A (en) * | 2012-05-11 | 2013-11-13 | 电信科学技术研究院 | Cycle feedback method, device and system of broadband channel information |
| CN103825663A (en) * | 2014-02-21 | 2014-05-28 | 电信科学技术研究院 | Method and device for measuring channel state information |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645751B (en) * | 2008-08-05 | 2012-10-03 | 华为技术有限公司 | Method, system and device for transmitting downlink associated control channel frames |
| CN101998644A (en) * | 2009-08-25 | 2011-03-30 | 三星电子株式会社 | Method for enhancing property of SACCH (Slow Associated Control Channel) |
| US8064531B2 (en) * | 2009-11-04 | 2011-11-22 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for interferer parameter estimation using multiple receiver arbitration |
| CN102244871B (en) * | 2010-05-13 | 2015-08-12 | 中兴通讯股份有限公司 | Multiplexing method in a kind of multiuser multiplexing technology and device |
-
2014
- 2014-08-08 CN CN201410391009.XA patent/CN105471544B/en active Active
-
2015
- 2015-04-27 WO PCT/CN2015/077537 patent/WO2016019741A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986586A (en) * | 2010-11-09 | 2011-03-16 | 中兴通讯股份有限公司 | Method and user equipment (UE) for measuring and feeding back channel quality |
| CN103391158A (en) * | 2012-05-11 | 2013-11-13 | 电信科学技术研究院 | Cycle feedback method, device and system of broadband channel information |
| CN103825663A (en) * | 2014-02-21 | 2014-05-28 | 电信科学技术研究院 | Method and device for measuring channel state information |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016019741A1 (en) | 2016-02-11 |
| CN105471544A (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12021785B2 (en) | Feedback information processing method, device and system | |
| CN109644033B (en) | Channel state reporting method in wireless communication system and apparatus therefor | |
| CN107771378B (en) | Method for channel state reporting using aperiodic channel state information-reference signal and apparatus therefor | |
| CN107210857B (en) | Method for reporting channel status in wireless communication system and apparatus therefor | |
| US10547430B2 (en) | Method for reporting channel state in wireless communication system and device therefor | |
| EP3164947B1 (en) | Signaling of network-assisted intra-cell interference cancellation and suppression | |
| CN108352879B (en) | Method for reporting channel status in wireless communication system and apparatus therefor | |
| EP2654356B1 (en) | Method and device for determining channel quality indication information | |
| CN107210794B (en) | System and method for link adaptation for low cost user equipment | |
| US9831958B2 (en) | Resource allocation for superposition coding | |
| US9680578B2 (en) | Soft packet combining for superposition coding | |
| EP2897316B1 (en) | Method and terminal for determining channel state information | |
| EP3471320A1 (en) | Method for receiving or transmitting downlink signal in wireless communication system and apparatus for same | |
| US10104674B2 (en) | Rate assignment with rate splitting for interference cancellation friendly new air interface | |
| US10771141B2 (en) | Method for channel state report in wireless communication system, and device therefor | |
| US10341080B2 (en) | Method and apparatus for determining quantity of channel quality indicators (CQI) | |
| JP2014082774A (en) | Device and method for multiplexing control information and data information from user terminal in multi-input multi-output transmission mode | |
| US20170187507A1 (en) | Method for performing channel estimation, and apparatus therefor | |
| US20170134150A1 (en) | Assistance Info and UE Feedback for Interference Cancellation Friendly New Air Interface | |
| CN104885502A (en) | Method for measuring interference in wireless communication system, and apparatus therefor | |
| EP3605887B1 (en) | Method for channel state measurement in wireless communication system and apparatus therefor | |
| CN105471544B (en) | Channel quality/state indication information processing method, device, terminal and base station | |
| CN115706618A (en) | Link adaptation method, related device, storage medium, and computer program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |