WO2017050086A1 - 信道参数的配置获取方法、装置及系统 - Google Patents
信道参数的配置获取方法、装置及系统 Download PDFInfo
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- WO2017050086A1 WO2017050086A1 PCT/CN2016/096700 CN2016096700W WO2017050086A1 WO 2017050086 A1 WO2017050086 A1 WO 2017050086A1 CN 2016096700 W CN2016096700 W CN 2016096700W WO 2017050086 A1 WO2017050086 A1 WO 2017050086A1
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- indication information
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- precoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0675—Space-time coding characterised by the signaling
Definitions
- Embodiments of the present invention relate to, but are not limited to, the field of communications, and in particular, to a method, an apparatus, and a system for acquiring a channel parameter.
- the terminal In the early LTE version, such as the Release 8 (Rel-8) version, the terminal usually uses the Common Reference Signal (CRS) for CSI estimation.
- CRS Common Reference Signal
- the reference signal used in this version (Reference Signal, referred to as RS) is a non-precoded RS.
- This type of RS is generally transmitted by using a base station antenna and antenna port mapping.
- a new RS that is, a channel state information reference symbol, is introduced in order to enable the terminal to estimate and feed back a larger bandwidth of channel state information (CSI) for a maximum of eight antenna ports.
- CSI-RS Channel state information
- the newly introduced CSI-RS is a reference signal transmitted by the base station and used for channel measurement.
- the terminal performs CSI based on the pilot symbols transmitted by the base station. It is estimated that the information of the channel matrix H of different transceiver antennas at different time-frequency resource locations is obtained, and then CSI quantization and feedback can be performed based on the channel matrix H.
- CSI-RS Beamformed CSI-RS, referred to as BFed CSI-RS
- BFed CSI-RS means that the base station first performs precoding processing on the CSI-RS before transmitting the CSI-RS.
- the so-called precoding is to pre-transmit the transmitted signal at the transmitting end in the case of known channel state information. Processing to facilitate signal detection by the receiver.
- a common precoding technique is to select an appropriate precoding matrix from a predefined set of precoding matrices to weight the RS, and then It is then transmitted by the base station.
- the BFed CSI-RS introduced by Rel-13 generally does not have a one-to-one mapping between antenna ports and base station antennas, but a one-to-many mapping, and uses precoding technology in mapping. Different precoding can be used. Corresponding to different beam directions.
- BFed CSI-RS is implemented in a variety of configuration methods, including the following:
- Each CSI-RS configuration includes multiple ports, which generally have the same precoding, and the terminal selects the beam to select the CSI-RS configuration;
- a set of beams can correspond to a resource set. This mode is flexible. You cannot configure different pilot parameters for different configurations (period, port number, power parameter). Etc.), but the configuration signaling overhead is small.
- the resource set has different beams.
- the resource can contain multiple ports. These ports generally have the same precoding. The terminal selects the beam to select the resource set.
- the port group has different beams.
- the port group can contain one or more ports. These ports generally have the same precoding and terminal selection.
- the beam is the selection port group.
- the selection of BFed CSI-RS generally requires feedback from the Beam Index.
- the Beam Index is generally one or more. The latter has a larger overhead and fewer application scenarios.
- the terminal determines the location of the CSI Reference Resource corresponding to the current CSI quantization, and the reference resource corresponding to the CSI quantization is generally located.
- the CSI-RS in the subframe where the CSI-RS is located and the CSI-RS transmitted in the previous X CSI-RS are transmitted through the subframe in which the CSI-RS is transmitted for the last time.
- Time domain correlation is used for noise suppression to improve CSI estimation performance.
- the terminals of different vendors can flexibly determine the size of the X according to the time domain correlation.
- the CSI estimation of the resource block in each subframe by the terminal is estimated according to the received CSI-RS on each resource block, and the CSI included in the pilot configuration of the same set of CSI-RS is assumed.
- RS has the same precoding or no progress Precoding, the terminal can perform joint CSI estimation on Y CSI-RSs on multiple resource blocks in the same resource block, perform noise suppression through frequency domain correlation, and improve CSI estimation performance.
- 3GPP also introduces the concept of CSI process.
- the base station can configure multiple CSI processes for the terminal.
- Each CSI process is equivalent to a feedback process.
- Each CSI process is independent and can be configured separately.
- the configuration of the CSI process can be divided into two types of feedback: Class A and Class B.
- the former is mainly used for feedback under non-precoded CSI-RS, and the feedback amount is large.
- the first type of pre-requisites that need to feed back long-term/wideband statistics.
- PMI Precoding Matrix Index
- the terminal In the LTE system, the terminal often uses a coherent detection method, so the channel must be estimated.
- the base station In general, with the coherent detection method, the base station must insert a known RS into the transmitted signal structure.
- This CSI estimation method is also called a pilot-based CSI estimation method.
- the implementation criteria can be divided into Linear Minimum Mean Square Error (LMMSE) estimation and Least Square Estimation (LS) estimation.
- LMMSE Linear Minimum Mean Square Error
- LS Least Square Estimation
- An embodiment of the present invention provides a method, a device, and a system for acquiring a channel parameter, so as to at least solve the noise impact caused by adopting a conservative method in estimating CSI in the related art, resulting in no The problem of getting the best estimated performance.
- a method for configuring a channel parameter includes: base station configuration indication information; and the base station configures a precoding frequency domain granularity parameter of a channel state reference signal CSI-RS according to the indication information. Measurement limit parameters.
- the indication information includes at least one of the following: a high-level frequency domain granularity parameter configuration signaling, a physical layer frequency domain granularity parameter signaling indication, a precoding matrix indicator non-enabled PMI disabling signaling indication, and a feedback mode configuration.
- the signaling indication, the feedback class Class indication information, the class Type indication information of the channel state reference signal CSI-RS, and the feedback mode indication information is not limited to the following: a high-level frequency domain granularity parameter configuration signaling, a physical layer frequency domain granularity parameter signaling indication, a precoding matrix indicator non-enabled PMI disabling signaling indication, and a feedback mode configuration.
- the step of configuring, by the base station, the precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information includes:
- the pre-coding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS is configured.
- the step of configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes: determining whether the PMI disabling signaling indication is enabled If the determination result is yes, configuring the precoding frequency domain granularity parameter K to be X; and if the determination result is no, configuring the precoding frequency domain granularity parameter K to be Y; wherein, X and Y Not equal, X and Y are integers, and X ⁇ Y;
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the feedback mode configuration signaling indication a feedback mode; when the feedback mode is a first type of preset mode set, configuring the pre-coded frequency domain granularity parameter K to be X; when the feedback mode is a second type of preset mode set or a third type of pre- When the mode set is set, the precoding frequency domain granularity parameter K is configured to be Y;
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the feedback class a class of the feedback class Class in the class indication information; when the feedback class Class is the second feedback class, configuring the precoding frequency domain granularity parameter K to be X; when the feedback class Class is the first feedback class, configuring The precoding frequency domain granularity parameter K is Y;
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the channel The category Type of the status reference signal CSI-RS indicates the category Type in the information; when the category Type is the first category, the precoding frequency domain granularity parameter K is configured as X; when the category Type is the second category And configuring the precoding frequency domain granularity parameter K to be Y;
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting a feedback manner in the feedback mode indication information;
- the precoding frequency domain granularity parameter K is set to X;
- the precoding frequency domain granularity parameter K is configured to be Y;
- X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum number of radio bearers in the current bandwidth, and X ⁇ Y.
- the precoding frequency domain granularity parameter K is determined according to the current bandwidth.
- the class Type in the class Type indication information of the channel state reference signal CSI-RS includes at least one of the following: a periodic CSI-RS, an aperiodic CSI-RS, a precoding CSI-RS, and a non-precoding CSI- RS, full bandwidth CSI-RS, partial bandwidth CSI-RS, aggregated configuration CSI-RS, and non-aggregated configured CSI-RS.
- the precoding frequency domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- the method further includes: the base station, by using the high-level frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, to indicate a binding state of the CSI-RS, where the binding state includes: Bind or no binding.
- a method for acquiring another channel parameter including: receiving, by a terminal, indication information sent by a base station; and acquiring, by the terminal, a precoding frequency of a channel state reference signal CSI-RS according to the indication information.
- Domain granularity parameter / measurement limit parameter
- the indication information includes at least one of the following: a high-level frequency domain granularity parameter configuration signaling, Physical layer frequency domain granularity parameter signaling indication, precoding matrix indicator non-enabled PMI disabling signaling indication, feedback mode configuration signaling indication, feedback class Class indication information, category type indication of the channel state reference signal CSI-RS Information, feedback mode indication information and preset granularity parameters.
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information includes:
- the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS is obtained.
- the step of acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: determining whether the PMI disabling signaling indication is enabled If the result of the determination is yes, obtaining the precoding frequency domain granularity parameter K is X; if the determination result is no, acquiring the precoding frequency domain granularity parameter K is Y; wherein, X and Y Not equal, X and Y are integers, and X ⁇ Y;
- the step of acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the feedback mode configuration signaling indication a feedback mode; when the feedback mode is a first type of preset mode set, obtaining the pre-coded frequency domain granularity parameter K is X; when the feedback mode is a second type of preset mode set or a third type of pre- When the mode set is set, obtaining the precoding frequency domain granularity parameter K is Y;
- the step of acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting feedback in the feedback category Class indication information The class Class; when the feedback class Class is the second feedback class, obtain the precoding frequency domain granularity parameter K is X; when the feedback class Class is the first feedback class, obtain the precoding frequency domain granularity The parameter K is Y;
- the step of acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the channel The category Type of the status reference signal CSI-RS indicates the category Type in the information; when the category Type is the first category, the precoding frequency domain granularity parameter K is obtained as X; when the category Type is the second category Obtaining the precoding frequency domain granularity parameter K as Y;
- the step of acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting a feedback manner in the feedback mode indication information;
- the pre-coded frequency domain granularity parameter K is obtained as X;
- the feedback mode is aperiodic feedback, the pre-coded frequency domain granularity parameter K is obtained as Y;
- X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y;
- the step of acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: obtaining the according to the preset granularity parameter
- the precoding frequency domain granularity parameter is K.
- the precoding frequency domain granularity parameter K is determined according to the current bandwidth.
- the class Type in the class Type indication information of the channel state reference signal CSI-RS includes at least one of the following: a periodic CSI-RS, an aperiodic CSI-RS, a precoding CSI-RS, and a non-precoding CSI- RS, full bandwidth CSI-RS, partial bandwidth CSI-RS, aggregated configuration CSI-RS, and non-aggregated configured CSI-RS.
- the precoding frequency domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- the method further includes: obtaining, by the terminal, the binding state of the CSI-RS by using the high-level frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, where the binding state is Includes: bound or no binding.
- a method for configuring a channel parameter including: base station configuration indication information; and the base station configures a precoding time domain granularity parameter of a channel state reference signal CSI-RS according to the indication information. / Measurement limit parameters.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, and the channel state reference signal configuration CSI- RS configuration indication information, feedback mode indication information, antenna port number indication information, and CSI report type.
- the step of configuring, by the base station, the precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information includes:
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS includes: determining whether the PMI disabling signaling indication is enabled And if the judgment result is yes, configuring the precoding time domain granularity parameter K to be X; if the determination result is no, configuring the precoding time domain granularity parameter K to be Y; wherein, X and Y Not equal, X and Y are integers, and X ⁇ Y;
- the step of configuring a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: detecting the feedback mode configuration signaling a feedback mode in the indication; when the feedback mode is a first type of preset mode set, configuring the precoding time domain granularity parameter K to be X; when the feedback mode is a second type of preset mode set or third When the preset mode collection is set, the precoding time domain granularity parameter K is configured to be Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- the third step when the indication information is the feedback category Class indication information, the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: detecting the feedback category Class indication information The feedback category Class; when the feedback category Class is the second feedback category, configuring the precoding time domain granularity parameter K to be X; when the feedback category Class is the first feedback category, configuring the precoding The domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, and X ⁇ Y;
- the method of configuring the precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS includes: the base station, when the indication information is used to configure CSI-RS configuration indication information for the channel state reference signal Configuring a CSI-RS configuration, where the CSI-RS configuration includes multiple resource sets, one beam corresponding to one resource set, and the resource set is different from the corresponding beam, and the resource set includes multiple ports, the port Having the same precoding; after the base station determines the CSI-RS configuration, the configuration of the precoding time domain granularity parameter is K by the high layer signaling/physical layer signaling indication;
- the fifth step, when the indication information is the feedback mode indication information, the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: detecting feedback in the feedback mode indication information
- the method of configuring the precoding time domain granularity parameter K is X when the feedback mode is periodic feedback, and configuring the precoding time domain granularity parameter K to be Y when the feedback mode is aperiodic feedback. Where X and Y are not equal, X and Y are integers, X Greater than or equal to 1, and X ⁇ Y;
- the step of configuring a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: when the base station is used for transmitting an antenna M 1 is the number of ports, the configuration of the time-domain precoding parameter K is X-size; when the number of the base station for antenna port transmission is 2 M, the configuration of the time-domain precoding granularity parameter K is the Y; wherein X and Y are not equal, X and Y are integers, and when M 1 is less than or equal to M 2 , X is greater than or equal to Y;
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: according to the time domain granularity parameter, along with the CSI
- the periodic feedback of the type of report is periodically reset, and the base station configures a reset period and/or a subframe offset of the binding state by the longest period of the reporting type of the CSI.
- the precoding time domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- a method for acquiring a channel parameter including: receiving, by a terminal, indication information sent by a base station;
- the terminal acquires a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, a resource Resource specific indication information, and a feedback mode indication.
- Information antenna port number indication information, and CSI report type.
- the step of the terminal acquiring the precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information includes:
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS includes: determining whether the PMI disabling signaling indication is enabled If the result of the determination is yes, obtaining the precoding time domain granularity parameter K is X; if the determination result is no, obtaining the precoding time domain granularity parameter K is Y; wherein, X and Y Not equal, X and Y are integers, and X ⁇ Y;
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: detecting the feedback mode acquisition signaling a feedback mode in the indication; when the feedback mode is a first type of preset mode set, obtaining the precoding time domain granularity parameter K is X; when the feedback mode is a second type of preset mode set or third When the class preset mode is set, the precoding time domain granularity parameter K is obtained as Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: detecting the feedback category Class indication information The feedback category Class; when the feedback category Class is the second feedback category, obtaining the precoding time domain granularity parameter K is X; when the feedback category Class is the first feedback category, acquiring the precoding The domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- the step of acquiring a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: the terminal according to the resource Resource specific The indication information determines a number of resource sets included in a set of CSI-RS configurations configured by the base station; and the terminal obtains a precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the received high layer/physical layer indication signaling. ;
- the fifth step when the indication information is the feedback mode indication information, the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: detecting feedback in the feedback mode indication information When the feedback mode is periodic feedback, the pre-coding time domain granularity parameter K is obtained as X; when the feedback mode is aperiodic feedback, obtaining the pre-coding time domain granularity parameter K is Y. Where X ⁇ Y;
- the step of acquiring a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes: when the terminal determines that the base station is used for transmission the number of antenna ports to 1 M, the obtaining the precoding granularity time domain parameters for the X-K; when the terminal station determines the number of antenna ports used for transmission when M 2, to obtain the time-domain precoding granularity parameter K Is Y; wherein, X and Y are not equal, X and Y are integers, and when M 1 is less than or equal to M 2 , X is greater than or equal to Y;
- the step of precoding the time domain granularity parameter/measurement restriction parameter of the CSI-RS comprises: determining, by the terminal, the periodic reset and/or binding of the binding state of the CSI-RS by the longest period of the reporting type of the CSI The sub-frame offset of the state.
- the precoding time domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- a channel parameter configuration apparatus including: a first configuration module, configured to configure indication information; and a second configuration module, configured to configure a channel state reference signal according to the indication information Precoding frequency domain granularity parameter/measurement limit parameter of CSI-RS.
- the indication information includes at least one of the following: a high-level frequency domain granularity parameter configuration signaling, a physical layer frequency domain granularity parameter signaling indication, a precoding matrix indicator non-enabled PMI disabling signaling indication, and a feedback mode.
- the configuration signaling indication the feedback category Class indication information, the category type indication information of the channel state reference signal CSI-RS, and the feedback mode indication information
- the second configuration module includes:
- a first configuration unit configured to configure a precoding frequency domain granularity parameter of the CSI-RS when the indication information is the high frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling indication a measurement limit parameter, wherein the precoding frequency domain granularity parameter is configured to be K according to the high frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling; or
- a second configuration unit configured to: when the indication information is the PMI disabling signaling indication, configure a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the PMI disabling signaling indication is determined If the result of the determination is YES, the precoding frequency domain granularity parameter K is set to X; and if the determination result is negative, the precoding frequency domain granularity parameter K is configured to be Y, wherein X and Y are not equal, X and Y are integers, and X ⁇ Y; or,
- a third configuration unit configured to configure a precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS when the indication information is the feedback mode configuration signaling indication, where the feedback mode configuration information is detected a feedback mode in the indication; when the feedback mode is a first type of preset mode set, configuring the precoding frequency domain granularity parameter K to be X; when the feedback mode is a second type of preset mode set or When the three types of preset mode sets are set, the precoding frequency domain granularity parameter K is configured to be Y; or
- a fourth configuration unit configured to: when the indication information is the feedback category Class indication information, And configuring a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback category Class in the feedback category Class indication information is detected; when the feedback category Class is a second feedback category, configuring the The precoding frequency domain granularity parameter K is X; when the feedback category Class is the first feedback category, configuring the precoding frequency domain granularity parameter K to be Y; or
- a fifth configuration unit configured to: when the indication information is the category Type indication information of the channel state reference signal CSI-RS, configure a precoding frequency domain granularity parameter/measurement limit parameter of the CSI-RS, where The class Type of the channel state reference signal CSI-RS indicates the class Type in the information; when the class Type is the first class, the precoding frequency domain granularity parameter K is configured as X; when the class Type is In the second category, configuring the precoding frequency domain granularity parameter K to be Y; or,
- a sixth configuration unit configured to: when the indication information is the feedback mode indication information, configure a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback manner indication information is detected
- the feedback mode is configured to configure the precoding frequency domain granularity parameter K to be X when the feedback mode is periodic feedback, and configure the precoding frequency domain granularity parameter when the feedback mode is aperiodic feedback K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y.
- an apparatus for acquiring another channel parameter including: a receiving module, configured to receive indication information sent by a base station; and an acquiring module, configured to acquire a channel state reference signal according to the indication information Precoding frequency domain granularity parameter/measurement limit parameter of CSI-RS.
- the receiving module is configured to receive the indication information sent by the base station, and the acquiring module is configured to acquire, according to the indication information, a precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS.
- a device for configuring a channel parameter including: a first configuration module, configured to configure indication information; and a second configuration module, configured to configure a channel state reference according to the indication information Precoding time domain granularity parameter/measurement limiting parameter of signal CSI-RS.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, and the channel state reference signal configuration CSI
- the second configuration module package include:
- a first configuration unit configured to: when the indication information is the PMI disabling signaling indication, configure a precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS, where the PMI disabling signaling indication is determined If the result of the determination is yes, the precoding time domain granularity parameter K is set to be X; and if the determination result is no, the precoding time domain granularity parameter K is configured to be Y; X and Y are not equal, X and Y are integers, and X ⁇ Y; or,
- a second configuration unit configured to: when the indication information is the feedback mode configuration signaling indication, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the feedback mode is detected Configuring a feedback mode in the signaling indication; when the feedback mode is a first type of preset mode set, configuring the precoding time domain granularity parameter K to be X; and when the feedback mode is a second type of preset mode set Or the third type of preset mode set, configuring the precoding time domain granularity parameter K to be Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- a third configuration unit configured to: when the indication information is the feedback category Class indication information, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the feedback category Class is detected The feedback category Class in the indication information; when the feedback category Class is the second feedback category, configuring the precoding time domain granularity parameter K to be X; when the feedback category Class is the first feedback category, configuring the The precoding time domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, and X ⁇ Y;
- a fourth configuration unit configured to configure a precoding time domain granularity parameter/measurement limit parameter of the channel state reference signal CSI-RS when the indication information is configured as the CSI-RS configuration indication information of the channel state reference signal, where Configuring a CSI-RS configuration, where the CSI-RS configuration includes multiple resource sets, one beam corresponding to one resource set, and the resource set is different from the corresponding beam, and the resource set includes multiple ports, the port Having the same precoding; after determining the CSI-RS configuration, configuring the precoding time domain granularity parameter to be K by high layer signaling/physical layer signaling indication; or
- a fifth configuration unit configured to: when the indication information is the feedback mode indication information, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the feedback mode indication information is detected
- the precoding time domain granularity parameter K is configured as X
- the feedback mode is aperiodic feedback
- a sixth configuration unit configured to: when the indication information is the antenna port number indication information, configure a precoding time domain granularity parameter/measurement restriction parameter of a channel state reference signal CSI-RS, where, when the base station is used When the number of transmitted antenna ports is M 1 , the precoding time domain granularity parameter K is configured as X; when the number of antenna ports used by the base station for transmission is M 2 , the precoding time domain granularity parameter K is configured as Y; wherein X and Y are not equal, X and Y are integers, and when M 1 is less than or equal to M 2 , X is greater than or equal to Y;
- a seventh configuration unit configured to: when the indication information is a report type of the CSI, configure a precoding time domain granularity parameter/measurement limit parameter of the channel state reference signal CSI-RS, wherein the time domain granularity parameter is followed by The periodic feedback of the reporting type of the CSI is periodically reset, and the reset period and/or the subframe offset of the binding state are configured by the longest period of the reporting type of the CSI.
- an apparatus for acquiring a channel parameter including: a receiving module, configured to receive indication information sent by a base station; and an acquiring module, configured to acquire a channel state reference signal according to the indication information Precoding time domain granularity parameter/measurement limit parameter of CSI-RS.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, a resource Resource specific indication information, and a feedback manner.
- the obtaining module includes:
- a first acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the CSI-RS when the indication information is the PMI disabling signaling indication, where the PMI disabling signaling indication is determined If the result of the determination is YES, the pre-coding time domain granularity parameter K is obtained as X; and if the determination result is negative, the pre-coding time domain granularity parameter K is obtained as Y; X and Y are not equal, X and Y are integers, and X ⁇ Y; or,
- a second acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the feedback mode configuration signaling indication, where the feedback mode is detected Obtaining a feedback mode in the signaling indication; when the feedback mode is a first type of preset mode set, acquiring the precoding time domain granularity parameter K is X; and when the feedback mode is a second type of preset mode set Or the third type of preset mode set, obtain the precoding time domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y; or,
- a third acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the feedback category Class indication information, where the feedback category Class is detected Deriving the feedback category Class in the information; when the feedback category Class is the second feedback category, acquiring the precoding time domain granularity parameter K is X; when the feedback category Class is the first feedback category, acquiring the The precoding time domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- a fourth acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the resource Resource specific indication information, where, according to the resource Resource specific
- the indication information determines a number of resource sets included in a set of CSI-RS configurations configured by the base station; and obtains a precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the received high layer/physical layer indication signaling; or
- a fifth acquiring unit configured to: when the indication information is the feedback mode indication information, acquire a precoding time domain granularity parameter/measurement restriction parameter of a channel state reference signal CSI-RS, where the feedback mode indication information is detected
- the feedback mode of the precoding time domain granularity parameter is obtained when the feedback mode is periodic feedback
- the precoding time domain granularity parameter is obtained when the feedback mode is aperiodic feedback
- K is Y; where X ⁇ Y; or,
- a sixth acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the antenna port number indication information, where the terminal determines the base station Obtaining the precoding time domain granularity parameter K is X when the number of antenna ports used for transmission is M 1 ; and acquiring the precoding time domain when the terminal determines that the number of antenna ports used by the base station for transmission is M 2 K is the particle size parameter Y; wherein, X and Y are not equal, X and Y are integers, when M 1 is less than or equal to M 2, X is greater than or equal to Y;
- a seventh acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is a report type of the CSI, where the report type of the CSI is the most
- the long period determines the periodic reset of the binding state of the CSI-RS and/or the subframe offset of the bound state.
- a channel acquisition configuration acquisition system including: a base station and a terminal, wherein the base station is in communication connection with the terminal, where the base station is one of the foregoing channel parameters. Acquisition device and acquisition device for channel parameters of any of the channel parameter acquisition devices; the terminal is a channel parameter of any one of the above-mentioned other channel parameter acquisition device and another channel parameter acquisition device Get the device.
- the base station configuration indication information is used; the base station configures the precoding frequency domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS according to the indication information.
- FIG. 1 is a flowchart of a method for configuring channel parameters according to an embodiment of the present invention
- FIG. 2 is a flowchart of a method for acquiring channel parameters according to an embodiment of the present invention
- FIG. 3 is a flowchart of another method for configuring channel parameters according to an embodiment of the present invention.
- FIG. 4 is a flowchart of another method for acquiring channel parameters according to an embodiment of the present invention.
- Figure 5-a is a schematic diagram of resetting the binding state and/or subframe offset according to the longest period
- FIG. 5 is a structural block diagram of a device for configuring channel parameters according to an embodiment of the present invention.
- FIG. 6 is a structural block diagram of a device for configuring channel parameters according to an embodiment of the present invention.
- FIG. 7 is a structural block diagram of an apparatus for acquiring a channel parameter according to another embodiment of the present invention.
- FIG. 8 is a structural block diagram of an apparatus for acquiring a channel parameter according to another embodiment of the present invention.
- FIG. 9 is a structural diagram of a configuration acquisition acquisition system of channel parameters according to an embodiment of the present invention.
- the base station includes, but is not limited to, various wireless communication devices such as a macro base station, a micro base station, and a wireless access point.
- Terminals include, but are not limited to, data cards, mobile phones, notebook computers, personal computers, tablets, personal digital assistants, Bluetooth and other terminals, as well as various wireless communication devices such as relays, remote devices, and wireless access points.
- FIG. 1 is a flowchart of a method for acquiring a channel parameter according to an embodiment of the present invention. As shown in FIG. 1 , on the base station side, the process includes the following steps:
- Step S102 the base station configuration indication information
- Step S104 The base station configures a precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- the method for obtaining the channel parameters provided by the embodiment of the present application may be applicable to the channel state information (CSI) estimation method, and configuring the CSI-RS precoding frequency domain granularity parameter to the CSI.
- the estimation is performed to improve the performance of the CSI estimation.
- the base station configures the indication information
- the base station configures the precoding frequency domain granularity parameter of the channel state reference signal CSI-RS according to the indication information.
- the indication information is configured by the base station; the base station configures the precoding frequency domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the noise influence caused by adopting a conservative method for CSI estimation, so that the best is not obtained.
- the problem of estimating performance and thus achieving the effect of improving the estimated performance.
- the indication information includes at least one of the following: a high-level frequency domain granularity parameter configuration signaling, The physical layer frequency domain granularity parameter signaling indication, the precoding matrix indicator non-enabled PMI disabling signaling indication, the feedback mode configuration signaling indication, the feedback category Class indication information, the channel status reference signal CSI-RS category Type indication information, and Feedback mode indication information.
- the step of configuring, by the base station, the precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information comprises:
- the steps of configuring the pre-coded frequency domain granularity parameter/measurement limiting parameter of the CSI-RS include:
- the configuration precoding frequency domain granularity parameter is K according to the high frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, and the precoding frequency domain granularity parameter K is 1, and K is equal to M, where M is The number of radio bearers with the largest bandwidth currently;
- the step of the base station configuring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the base station configures the state of the CSI-RS through the current bandwidth, including the binding state of the CSI-RS and the binding granularity K.
- the relationship between the bandwidth size and the binding granularity is shown in Table 1 below.
- Table 1 is a table of bandwidth and binding granularity.
- K i (1 ⁇ i ⁇ 6), U, V are integers and U>20, V>100, and K 0 ⁇ K 1 ⁇ K 2 ⁇ K 3 ⁇ K 4 ⁇ K 5 ⁇ K 6 , also That is, for larger bandwidths, the binding granularity to CSI-RS is larger.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- Base station The RBs in a group use the same precoding matrix, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the step of the base station configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the base station configures the state of the CSI-RS through the current bandwidth, including the binding state of the CSI-RS and the binding granularity K.
- the relationship between bandwidth size and binding granularity is governed by Table 1.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the step of configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the precoding frequency domain granularity parameter K is set to X; if the determination result is negative, the precoding frequency domain granularity parameter K is set to Y.
- X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y.
- the step of the base station configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the base station configures the CSI-RS state by enabling PMI disabling or not enabling PMI disabling signaling, including the binding state and binding granularity K of the CSI-RS, and agrees that the binding granularity when the base station enables PMI disabling signaling is smaller than It is equal to the binding granularity when PMI disabling signaling is not enabled.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the step of configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the feedback mode in the feedback mode configuration signaling indication is detected; when the feedback mode is the first type of preset mode set, the precoding frequency domain granularity parameter K is set to X; when the feedback mode is the second type preset mode set or the first In the three types of preset mode sets, the precoding frequency domain granularity parameter K is set to Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the current maximum bandwidth.
- the radio carries the number of RBs, and X ⁇ Y.
- the step of the base station configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the base station configures the state of the CSI-RS by using feedback mode configuration signaling, including the binding state of the CSI-RS and the binding granularity K.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the feedback category Class in the feedback category Class indication information is detected; when the feedback category Class is the second feedback category, the precoding frequency domain granularity parameter K is set to X; when the feedback category Class is the first feedback category, the precoding frequency is configured.
- the domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y.
- the step of the base station configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the base station indicates the state of the CSI-RS, including the binding state of the CSI-RS and the binding granularity K, through a feedback class (Class).
- a feedback class Class B
- the base station configuration feedback class is Class B
- it is agreed to indicate the binding granularity K X
- the feedback class is Class A
- it is agreed to indicate the binding granularity K Y
- M is the maximum RB number of the current bandwidth, and satisfies X ⁇ Y.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the category Type indication information in the category Type indication information of the channel state reference signal CSI-RS is detected; when the category Type is the first category, the precoding frequency domain granularity parameter K is set to X; when the category Type is the second category, the configuration is pre-configured
- the coded frequency domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y.
- the step of the base station configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the base station configures the state of the CSI-RS by using the CSI-RS category indication, including the binding state of the CSI-RS and the binding granularity K:
- the binding granularity configured by the base station is fixed.
- the binding granularity configured by the base station can be dynamically adjusted to match the channel change according to changes in channel conditions.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the feedback mode in the feedback mode indication information is detected.
- the precoding frequency domain granularity parameter K is set to X.
- the precoding frequency domain granularity parameter K is configured. Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum number of radio bearers in the current bandwidth, and X ⁇ Y.
- the step of the base station configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the base station indicates, by means of feedback, the state of configuring the CSI-RS, including the binding state of the CSI-RS and the binding granularity K.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- the precoding frequency domain granularity parameter K is determined according to the current bandwidth.
- the category Type in the category Type indication information of the channel state reference signal CSI-RS includes at least one of the following: a periodic CSI-RS, an aperiodic CSI-RS, a precoding CSI-RS, a non-precoded CSI-RS, Full bandwidth CSI-RS, partial bandwidth CSI-RS, aggregated configuration CSI-RS, and non-aggregated configured CSI-RS.
- the precoding frequency domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- the method further includes: the base station indicates, by using a high-level frequency domain granularity parameter configuration signaling or a physical layer frequency domain granularity parameter signaling, a binding state of the CSI-RS, where the binding state includes: binding or no binding.
- FIG. 2 is a flowchart of a method for determining channel parameters according to an embodiment of the present invention. As shown in FIG. 2, on the terminal side, the process includes the following steps. step:
- Step S202 the terminal receives the indication information sent by the base station
- Step S204 The terminal acquires a precoding frequency domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS according to the indication information.
- the embodiment of the present application receives the indication information sent by the base station by using the terminal, and obtains the precoding frequency domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and further The coded frequency domain granularity parameter estimates the CSI, and finally achieves the effect of improving the estimated performance.
- the terminal receives the indication information sent by the base station; the terminal acquires the precoding frequency domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the noise influence caused by adopting a conservative method for CSI estimation, thereby failing to The problem of obtaining the best estimated performance, and thus achieving the effect of improving the estimated performance.
- the indication information includes at least one of the following: a high-level frequency domain granularity parameter configuration signaling, a physical layer frequency domain granularity parameter signaling indication, a precoding matrix indicator non-enabled PMI disabling signaling indication, and a feedback mode configuration signaling.
- Indication feedback category Class indication information, channel status reference signal The CSI-RS class Type indication information, feedback mode indication information, and preset granularity parameters.
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information includes:
- the step of acquiring the pre-coded frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the precoding frequency domain granularity parameter is K according to the high frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, and the precoding frequency domain granularity parameter K is 1, and K is equal to M, where M is The number of radio bearers with the largest bandwidth currently;
- the step of the terminal acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the high layer signaling, determines the binding state and binding granularity K of the CSI-RS by using the indication information of the high layer signaling and the constraint relationship in Table 1 in the first embodiment.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the physical layer frequency domain granularity parameter configuration signaling, configures signaling indication information by using the frequency domain granularity parameter, and determines the binding state and binding granularity K of the CSI-RS by the constraint relationship in Table 1.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the step of acquiring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes:
- the precoding frequency domain granularity parameter K is obtained as X; and if the determination result is negative, the precoding frequency domain granularity parameter K is obtained as Y. ;
- the step of the terminal acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the PMI disabling signaling, and determines the binding state and the binding granularity K of the CSI-RS by using the indication information of the PMI disabling signaling.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the step of acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the feedback mode in the feedback mode configuration signaling indication is detected; when the feedback mode is the first type of preset mode set, the precoding frequency domain granularity parameter K is obtained as X; when the feedback mode is the second type preset mode set or the first When the three types of preset mode sets are obtained, the pre-coded frequency domain granularity parameter K is obtained as Y;
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the feedback mode indication signaling, and determines the binding state and the binding granularity K of the CSI-RS by using the indication information of the feedback mode indication signaling.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the step of acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the feedback category Class in the feedback category Class indication information is detected; when the feedback category Class is the second feedback category, the precoding frequency domain granularity parameter K is obtained as X; when the feedback category Class is the first feedback category, the precoding frequency is obtained.
- the domain granularity parameter K is Y;
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the feedback class indication information, and determines the binding state and the binding granularity K of the CSI-RS by using the feedback class information.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm for all CSI-RSs of RBs in the same group.
- the CSI of each group of RBs is estimated, namely:
- the step of acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the category Type indication information in the category Type indication information of the channel state reference signal CSI-RS is detected; when the category Type is the first category, the precoding frequency domain granularity parameter K is obtained as X; when the category Type is the second category, the pre-acquisition is obtained.
- the encoding frequency domain granularity parameter K is Y;
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the CSI-RS category indication information, and determines the binding state and the binding granularity K of the CSI-RS by using the CSI-RS category indication information.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the step of acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the feedback mode in the feedback mode indication information is detected.
- the pre-coded frequency domain granularity parameter K is obtained as X.
- the feedback mode is aperiodic feedback, the pre-coded frequency domain granularity parameter K is obtained.
- Y wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y;
- the step of the terminal acquiring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the feedback mode indication information, and determines the binding state and the binding granularity K of the CSI-RS by using the feedback manner indication information.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the step of acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the precoding frequency domain granularity parameter is obtained as K according to the preset granularity parameter.
- the step of the terminal acquiring the pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- Base station implementation mode The base station configures the CSI-RS state according to the agreed frequency domain granularity parameter, including the binding state of the CSI-RS and the binding granularity K.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- Terminal implementation mode The terminal configures the CSI-RS state according to the agreed frequency domain granularity parameter, including the binding state of the CSI-RS and the binding granularity K, and the terminal always performs CSI estimation according to the convention during the communication process.
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- the precoding frequency domain granularity parameter K is determined according to the current bandwidth.
- the category Type in the category Type indication information of the channel state reference signal CSI-RS includes at least one of the following: a periodic CSI-RS, an aperiodic CSI-RS, a precoding CSI-RS, a non-precoded CSI-RS, Full bandwidth CSI-RS, partial bandwidth CSI-RS, aggregated configuration CSI-RS, and non-aggregated configured CSI-RS.
- the precoding frequency domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- the method further includes: obtaining, by the terminal, the binding state of the CSI-RS by using the high-level frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, where the binding state includes: binding or no binding.
- FIG. 3 is a flowchart of another method for configuring a channel parameter according to an embodiment of the present invention. As shown in FIG. 3, on the base station side, the process includes The following steps:
- Step S302 the base station configuration indication information
- Step S304 the base station configures a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS according to the indication information.
- the method for obtaining a channel parameter provided by the embodiment of the present application is that the base station configures a precoding time domain granularity parameter of the CSI-RS according to the configured indication information.
- the indication information is configured by the base station; the base station configures the precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the noise influence caused by adopting a conservative method for CSI estimation.
- the problem of the best estimated performance is not obtained, and the effect of improving the estimated performance is achieved.
- the indication information includes at least one of the following: the precoding matrix indicator is not enabled PMI The disabling signaling indication, the feedback mode configuration signaling indication, the feedback class Class indication information, the channel state reference signal configuration CSI-RS configuration indication information, the feedback mode indication information, the antenna port number indication information, and the CSI report type.
- the step of configuring, by the base station, the precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information comprises:
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the precoding time domain granularity parameter K is set to X; and if the determination result is negative, the precoding time domain granularity parameter K is set to Y.
- X is not equal to Y
- X and Y are integers, and X ⁇ Y;
- the step of the base station configuring the precoding time domain granularity parameter of the CSI-RS includes:
- the base station configures the CSI-RS state by enabling PMI disabling or not enabling PMI disabling signaling, including the binding state and binding granularity K of the CSI-RS, and agrees that the binding granularity when the base station enables PMI disabling signaling is smaller than It is equal to the binding granularity when PMI disabling signaling is not enabled.
- the binding method of the base station to the CSI-RS is: the base station binds the CSI-RSs in consecutive K subframes from the current subframe, that is, on the consecutive K subframes.
- the CSI-RSs included in the pilot configuration of the same set of CSI-RSs have the same precoding or no precoding.
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the feedback mode in the feedback mode configuration signaling indication is detected; when the feedback mode is the first type of preset mode set, the precoding time domain granularity parameter K is set to X; when the feedback mode is the second type preset mode set or the first When the three types of preset mode sets are set, the precoding time domain granularity parameter K is set to Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- the step of the base station configuring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the base station configures the state of the CSI-RS by using feedback mode configuration signaling, including the binding state of the CSI-RS and the binding granularity K.
- the binding method of the base station to the CSI-RS is: the base station binds the CSI-RSs in consecutive K subframes from the current subframe, that is, on the consecutive K subframes.
- the CSI-RSs included in the pilot configuration of the same set of CSI-RSs have the same precoding or no precoding.
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the feedback category Class in the feedback category Class indication information is detected; when the feedback category Class is the second feedback category, the precoding time domain granularity parameter K is set to X; when the feedback category Class is the first feedback category, when precoding is configured
- the domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y;
- the step of the base station configuring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the base station indicates the state of the CSI-RS, including the binding state of the CSI-RS and the binding granularity K, through a feedback class (Class).
- a feedback class Class B
- the base station configuration feedback class is Class B
- it is agreed to indicate the binding granularity K X
- the feedback class is Class A
- it is agreed to indicate the binding granularity K Y
- X and Y are different integers
- X ⁇ Y is satisfied.
- the binding method of the base station to the CSI-RS is: the base station binds the CSI-RSs in consecutive K subframes from the current subframe, that is, on the consecutive K subframes.
- the CSI-RSs included in the pilot configuration of the same set of CSI-RSs have the same precoding or no precoding.
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the base station is configured with a set of CSI-RS configurations, where the CSI-RS configuration includes multiple resource sets, one beam corresponding to one resource set, different resource sets corresponding to different beams, and the resource set includes multiple ports, and the ports have the same precoding; Determining CSI-RS at the base station After the configuration, the high-frequency signaling/physical layer signaling indicates that the pre-coding frequency domain granularity parameter is K;
- the step of the base station configuring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the base station determines the CSI-RS configuration, including the number of CSI resource sets, the number of ports included in each CSI resource set, and the precoding matrix used by these ports.
- the base station indicates the binding granularity K value through high layer/physical layer signaling.
- the binding method of the base station to the CSI-RS is: the base station binds the CSI-RSs in consecutive K subframes from the current subframe, that is, on the consecutive K subframes.
- the CSI-RSs included in the pilot configuration of the same set of CSI-RSs have the same precoding or no precoding.
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the feedback mode in the feedback mode indication information is detected.
- the precoding time domain granularity parameter K is set to X.
- the precoding time domain granularity parameter K is configured. Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y;
- the step of the base station configuring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the base station indicates, by means of feedback, the state of configuring the CSI-RS, including the binding state of the CSI-RS and the binding granularity K.
- the binding method of the base station to the CSI-RS is: the base station binds the CSI-RSs in consecutive K subframes from the current subframe, that is, on the consecutive K subframes.
- the CSI-RSs included in the pilot configuration of the same set of CSI-RSs have the same precoding or no precoding.
- the channel state reference signal is configured.
- the steps of precoding the time domain granularity parameter/measurement limiting parameter of the CSI-RS include:
- the precoding time domain granularity parameter K is set to X; when the number of antenna ports used by the base station for transmission is M2, the precoding time domain granularity parameter K is set to Y; X and Y are not equal, X and Y are integers, and when M1 is less than or equal to M2, X is greater than or equal to Y.
- the step of the base station configuring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the base station indicates the state of the CSI-RS, including the binding state of the CSI-RS and the binding granularity K, by the number of antenna ports.
- X and Y are different integers.
- the binding method of the base station to the CSI-RS is: the base station binds the CSI-RSs in consecutive K subframes from the current subframe, that is, on the consecutive K subframes.
- the CSI-RSs included in the pilot configuration of the same set of CSI-RSs have the same precoding or no precoding.
- the step of configuring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the base station granularity parameter is periodically reset with periodic feedback of the CSI report type, and the base station configures the reset period and/or subframe offset of the binding state by the longest period of the CSI report type.
- the base station implements the method: the base station determines the report type of the CSI, including the CQI/RI/PMI report period and/or the subframe offset, and then the base station resets the binding state and/or the CSI-RS according to the longest period. Frame offset. As shown in Figure 5-a, the feedback period of CQI/PMI/RI is different, but the feedback period of RI is the largest, and the binding state of CSI-RS is reset by the feedback period of RI.
- the precoding time domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- the state of the CSI-RS may be configured by the joint mode 1 and the mode 3, that is, the state of the CSI-RS is determined by the state table jointly determined by the PMI disabling signaling and the feedback category, as follows:
- the base station configures the state of the CSI-RS according to the state table jointly determined by the PMI disabling signaling and the feedback category according to Table 2 below:
- Table 2 PMI disabling signaling and feedback type joint status table, as shown in Table 2.
- Feedback category A (Class A) Feedback category B (Class B) Enable PMI disabling K 0,A K 0,B PMI disabling is not enabled K 1,A K 1,B
- K 0, A , K 0, B , K 1, A , K 1, B are integers and 1 ⁇ K 0, A ⁇ K 0, B ⁇ K 1, A ⁇ K 1, B ⁇ M, where M is the number of RBs in the bandwidth.
- the binding method of the base station to the CSI-RS is: the base station starts to bind the CSI-RSs on consecutive K RBs from the first RB, that is, the consecutive K RBs.
- the base station uses the same precoding matrix for RBs in the same group, namely:
- RB i (1 ⁇ i ⁇ M) represents the ith unprecoded RB
- Wi represents the ith precoding matrix in the precoding matrix set.
- FIG. 4 is a method according to the present invention.
- a flowchart of another method for acquiring channel parameters of the embodiment is shown in FIG. 4. On the terminal side, the process includes the following steps:
- Step S402 the terminal receives the indication information sent by the base station
- Step S404 the terminal acquires a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS according to the indication information.
- the pre-coded frequency domain granularity parameter of the CSI-RS is obtained.
- the method for obtaining the channel parameter provided by the embodiment of the present application receives the indication information by the terminal, and then acquires the precoding of the channel state reference signal CSI-RS according to the indication information. Domain granularity parameter.
- the terminal receives the indication information sent by the base station; the terminal acquires the precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the noise caused by adopting a conservative method for CSI estimation.
- the effect which leads to the inability to obtain the best estimated performance, has the effect of improving the estimated performance.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, a resource Resource specific indication information, a feedback mode indication information, The number of antenna ports indicates the type of information and the report type of the CSI.
- the step of the terminal acquiring the precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information comprises:
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the precoding time domain granularity parameter K is obtained as X; and if the determination result is negative, the precoding time domain granularity parameter K is obtained as Y.
- X is not equal to Y, X and Y are integers, and X ⁇ Y;
- the step of the terminal acquiring the precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS includes:
- the terminal receives the PMI disabling signaling, and determines the binding state and the binding granularity K of the CSI-RS by using the indication information of the PMI disabling signaling.
- the method for estimating the CSI by the terminal is: the terminal determines the location of the CSI-RS corresponding to the current CSI quantization, and the reference resource corresponding to the CSI quantization is generally located last time.
- the CSI-RS in which the CSI-RS is transmitted in the subframe where the CSI-RS is located and the CSI-RS in the transmission subframe of the previous K CSI-RSs are jointly evaluated by the terminal.
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the feedback mode is used to obtain a feedback mode in the signaling indication; when the feedback mode is the first type of preset mode set, the precoding time domain granularity parameter K is obtained as X; when the feedback mode is the second type of preset mode set or the first When the three types of preset mode sets are obtained, the pre-coding time domain granularity parameter K is obtained as Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- the step of the terminal acquiring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the terminal receives the feedback mode indication information, and determines the binding state and the binding granularity K of the CSI-RS by using the feedback mode indication information.
- the method for the terminal to estimate the CSI is: the terminal determines the location of the CSI-RS corresponding to the current CSI quantization, and the reference resource corresponding to the CSI quantization is generally located in the CSI that needs to be quantized for the last time. - The subframe in which the RS is located, the terminal performs joint CSI estimation on the CSI-RS transmitted in the subframe where the CSI-RS is located and the transmission subframe of the previous K CSI-RSs.
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the feedback category Class in the feedback category Class indication information is detected; when the feedback category Class is the second feedback category, the precoding time domain granularity parameter K is obtained as X; when the feedback category Class is the first feedback category, when the precoding is obtained
- the domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- the step of the terminal acquiring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the terminal receives the feedback class indication information, and determines the binding state and the binding granularity K of the CSI-RS by using the indication information of the feedback class.
- the terminal After determining the binding granularity K, the terminal estimates the CSI as follows: the terminal determines the current CSI. Quantifying the location of the corresponding CSI-RS, where the reference resource corresponding to the CSI quantization is generally located in the subframe in which the CSI-RS for which the most recent transmission needs to be quantized, and the terminal to the CSI-RS and the previous K CSI- The CSI-RS transmitted in the transmission subframe of the RS performs joint CSI estimation.
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the terminal determines the number of resource sets included in a set of CSI-RS configurations configured by the base station according to the resource Resource specific indication information; the terminal acquires the precoding time domain of the channel state reference signal CSI-RS according to the received high layer/physical layer indication signaling.
- the particle size parameter is K;
- the step of acquiring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the terminal determines the number of resource sets included in a set of CSI-RS configurations configured by the base station from the received data.
- the terminal receives the high layer/physical layer indication signaling to obtain the CSI-RS binding granularity K value, and then the terminal performs joint CSI estimation by using the resources in the bound resource set.
- the method for the terminal to estimate the CSI is: the terminal determines the location of the CSI-RS corresponding to the current CSI quantization, and the reference resource corresponding to the CSI quantization is generally located in the CSI that needs to be quantized for the last time. - The subframe in which the RS is located, the terminal performs joint CSI estimation on the CSI-RS transmitted in the subframe where the CSI-RS is located and the transmission subframe of the previous K CSI-RSs.
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the feedback mode is used to detect the feedback mode in the feedback mode.
- the pre-coding time domain granularity parameter K is X.
- the feedback mode is aperiodic feedback, the pre-coding time domain granularity parameter K is obtained. Y; wherein, X ⁇ Y;
- the step of the terminal acquiring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the terminal receives the feedback mode indication information, and determines the binding state and the binding granularity K of the CSI-RS by using the feedback manner indication information.
- the terminal After determining the binding granularity K, the terminal estimates the CSI as follows: the terminal determines the current CSI. Quantifying the location of the corresponding CSI-RS, where the reference resource corresponding to the CSI quantization is generally located in the subframe in which the CSI-RS for which the most recent transmission needs to be quantized, and the terminal to the CSI-RS and the previous K CSI- The CSI-RS transmitted in the transmission subframe of the RS performs joint CSI estimation.
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the precoding time domain granularity parameter K is X; and when the terminal determines that the number of antenna ports used by the base station for transmission is M2, the precoding time domain granularity parameter K is obtained.
- the step of the terminal acquiring the precoding time domain granularity parameter of the channel state reference signal CSI-RS includes:
- the terminal determines the number of antenna ports used for transmission from the received data, and determines the binding state and binding granularity K of the CSI-RS by using the antenna port number indication information.
- the method for the terminal to estimate the CSI is: the terminal determines the location of the CSI-RS corresponding to the current CSI quantization, and the reference resource corresponding to the CSI quantization is generally located in the CSI that needs to be quantized for the last time. - The subframe in which the RS is located, the terminal performs joint CSI estimation on the CSI-RS transmitted in the subframe where the CSI-RS is located and the transmission subframe of the previous K CSI-RSs.
- the step of acquiring the precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS includes:
- the terminal determines the periodic reset of the binding state of the CSI-RS and/or the subframe offset of the bound state by the longest period of the CSI report type.
- the terminal implementation manner the terminal acquires a report type of the CSI, including a feedback period of the CQI/RI/PMI.
- the longest feedback period is determined by the feedback period of the CQI/RI/PMI, and the binding state and/or subframe offset of the CSI-RS is obtained according to the longest feedback period.
- the terminal After acquiring the binding state of the CSI-RS, the terminal performs joint estimation of the CSI according to the binding state of the CSI-RS.
- the precoding time domain granularity parameter includes: a CSI-RS binding state and/or a CSI-RS binding granularity.
- the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
- the technical solution of the present invention in essence or the contribution to the related art can be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
- the instructions include a number of instructions for causing a terminal device (which may be a cell phone, computer, server, or network device, etc.) to perform the methods of various embodiments of the present invention.
- a channel parameter obtaining device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and has not been described again.
- the term "module” may implement a combination of software and/or hardware of a predetermined function.
- the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
- the state of the CSI-RS may also be configured by the joint mode 1 and the mode 3, that is, the terminal receives the disabling signaling and the feedback class indication information, and the disabling signaling is performed in Table 2 in the third embodiment.
- the feedback category jointly determines the state table to determine the state of the CSI-RS, including the binding state of the CSI-RS and the binding granularity K. The details are as follows:
- the method for estimating the CSI by the terminal is: the terminal starts from the first RB, and divides consecutive K RBs into one group, and uses all CSI-RS resources in each group of RBs to adopt LMMSECSI.
- the terminal uses the LMMSE estimation algorithm to estimate the CSI of each RB of the same group by using all the CSI-RSs of the RBs in the same group, that is,
- FIG. 5 is a structural block diagram of a device for configuring a channel parameter according to an embodiment of the present invention. As shown in FIG. 5, on a base station side, the device includes: a first configuration module 51 and a second configuration module 52, where
- a first configuration module 51 configured to configure indication information
- the second configuration module 52 is configured to configure a precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- first configuration module 51 and the second configuration module 52 correspond to step S102 and step S104 in the implementation of FIG. 1.
- the device for acquiring channel parameters configureds indication information by the base station on the base station side; the base station configures the precoding frequency domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the problem that the CSI estimation is conservative.
- the noise effect caused by the method leads to the problem that the best estimation performance cannot be obtained, and the effect of improving the estimation performance is achieved.
- FIG. 6 is a structural block diagram of a channel parameter configuration apparatus according to an embodiment of the present invention.
- the indication information includes at least one of the following: a high-level frequency domain granularity parameter configuration signaling, and a physical layer.
- the second configuration module 52 includes: a first configuration unit 521, a second configuration unit 522, a third configuration unit 523, a fourth configuration unit 524, a fifth configuration unit 525, and a sixth configuration unit 526, among them,
- the first configuration unit 521 is configured to configure a precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS when the indication information is a high frequency domain granularity parameter configuration signaling or a physical layer frequency domain granularity parameter signaling indication, where According to the high-level frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, the configuration pre-coding frequency domain granularity parameter is K, the pre-coding frequency domain granularity parameter K is 1, and K is equal to M, where M is the current The number of radio bearers with the largest bandwidth; or
- the second configuration unit 522 is configured to: when the indication information is a PMI disabling signaling indication, configure a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where it is determined whether the PMI disabling signaling indication is enabled; If yes, configure the precoding frequency domain granularity parameter K to be X; if the determination result is no, configure the precoding frequency domain granularity parameter K to be Y; or
- the third configuration unit 523 is configured to: when the indication information is a feedback mode configuration signaling indication, configure a precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS; wherein, detecting a feedback mode in the feedback mode configuration signaling indication; When the feedback mode is the first type of preset mode set, the precoding frequency domain granularity parameter K is set to X; when the feedback mode is the second type preset mode set or the third type preset mode set, the precoding frequency domain is configured.
- the particle size parameter K is Y; or,
- the fourth configuration unit 524 is configured to: when the indication information is the feedback category Class indication information, configure a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback category Class indication information is detected in the feedback category Class; When the feedback category Class is the second feedback category, the precoding frequency domain granularity parameter K is set to X; when the feedback category Class is the first feedback category, the precoding frequency domain granularity parameter K is set to Y; or
- the fifth configuration unit 525 is configured to: when the indication information is the category Type indication information of the channel state reference signal CSI-RS, configure a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the channel state reference signal CSI is detected -
- the category Type of the RS indicates the category Type in the information; when the category Type is the first category, the precoding frequency domain granularity parameter K is X; and when the category Type is the second category, the precoding frequency domain granularity parameter K is configured. Y; or,
- the sixth configuration unit 526 is configured to: when the indication information is the feedback mode indication information, configure a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback mode is used to detect the feedback mode; When the mode is periodic feedback, the precoding frequency domain granularity parameter K is set to X; when the feedback mode is aperiodic feedback, the precoding frequency domain granularity parameter K is set to Y; wherein X and Y are not equal, X and Y For an integer, X is greater than or equal to 1, Y is less than or equal to M, and M is the maximum number of radio bearers in the current bandwidth, and X ⁇ Y.
- FIG. 7 is a structural block diagram of a device for acquiring a channel parameter according to another embodiment of the present invention. As shown in FIG. 7, on the terminal side, the device includes: a receiving module 72 and an obtaining module 74, where
- the receiving module 72 is configured to receive indication information sent by the base station
- the obtaining module 74 is configured to acquire a precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- the receiving module 72 and the obtaining module 74 in the embodiment of the present application correspond to step S202 and step S204 in FIG. 2 .
- the device for acquiring channel parameters receives the indication information sent by the base station by using the terminal on the terminal side; the terminal acquires the precoding frequency domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the problem due to the CSI It is estimated that the noise effect brought by the conservative method leads to the problem that the best estimation performance cannot be obtained, and the effect of improving the estimation performance is achieved.
- FIG. 8 is a structural block diagram of a channel parameter obtaining apparatus according to another embodiment of the present invention.
- the indication information includes at least one of the following: a high-frequency frequency domain granularity parameter configuration signaling, Physical layer frequency domain granularity parameter signaling indication, precoding matrix indicator non-enabled PMI disabling signaling indication, feedback mode configuration signaling indication, feedback class Class indication information, channel state reference signal CSI-RS category Type indication information,
- the obtaining module 74 includes: a first obtaining unit 741, a second obtaining unit 742, a third obtaining unit 743, a fourth obtaining unit 744, a fifth obtaining unit 745, and a a sixth obtaining unit 746 and a seventh obtaining unit 747, wherein
- the first obtaining unit 741 is configured to obtain a precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS when the indication information is a high frequency domain granularity parameter configuration signaling or a physical layer frequency domain granularity parameter signaling indication, where According to the high-frequency frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, the pre-coding frequency domain granularity parameter is K, the pre-coding frequency domain granularity parameter K is 1, and K is equal to M, where M is the current The number of radio bearers with the largest bandwidth; or
- the second obtaining unit 742 is configured to: when the indication information is a PMI disabling signaling indication, acquire a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where it is determined whether the PMI disabling signaling indication is enabled; If yes, the pre-coded frequency domain granularity parameter K is X; if the determination result is negative, the pre-coded frequency domain granularity parameter K is obtained as Y; or
- the third obtaining unit 743 is configured to: when the indication information is a feedback mode configuration signaling indication, acquire a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback mode is configured to detect a feedback mode in the signaling indication; When the feedback mode is the first type of preset mode set, the precoding frequency domain granularity parameter K is obtained as X; when the feedback mode is the second type preset mode set or the third type preset mode set In time, the pre-coded frequency domain granularity parameter K is obtained as Y; or
- the fourth obtaining unit 744 is configured to: when the indication information is the feedback category Class indication information, obtain a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback category Class indication information is detected in the feedback category Class; When the feedback category Class is the second feedback category, the pre-coded frequency domain granularity parameter K is X; when the feedback category Class is the first feedback category, the pre-coded frequency domain granularity parameter K is obtained as Y; or
- the fifth obtaining unit 745 is configured to: when the indication information is the category Type indication information of the channel state reference signal CSI-RS, acquire a precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the channel state reference signal CSI is detected. -
- the category Type of the RS indicates the category Type in the information; when the category Type is the first category, the precoding frequency domain granularity parameter K is X; and when the category Type is the second category, the precoding frequency domain granularity parameter K is obtained. Y; or,
- the sixth obtaining unit 746 is configured to: when the indication information is the feedback mode indication information, obtain a pre-coded frequency domain granularity parameter/measurement restriction parameter of the CSI-RS, where the feedback mode is used to detect the feedback mode; when the feedback mode is In the case of periodic feedback, the pre-coded frequency domain granularity parameter K is X; when the feedback mode is aperiodic feedback, the pre-coded frequency domain granularity parameter K is obtained as Y; wherein X and Y are not equal, and X and Y are integers. , X is greater than or equal to 1, Y is less than or equal to M, M is the maximum bandwidth of the current radio bearer RB, and X ⁇ Y; or,
- the seventh obtaining unit 747 is configured to obtain a precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS when the indication information is a preset granularity parameter, where the precoding frequency domain granularity parameter is obtained according to the preset granularity parameter. Is K.
- the device for configuring a channel parameter includes: a first configuration module and a second configuration module, where
- a first configuration module configured to configure indication information
- a second configuration module configured to configure a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- the device for acquiring channel parameters configureds indication information by the base station on the base station side; the base station configures the precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the problem that the CSI estimation is conservative.
- the noise impact of the method leads to the inability to obtain The best estimate of performance issues, and thus the effect of improving the estimated performance.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, a channel state reference signal configuration CSI-RS configuration indication
- the configuration module 94 includes: a first configuration unit, a second configuration unit, a third configuration unit, a fourth configuration unit, and a fifth configuration unit. And a sixth configuration unit, wherein
- a first configuration unit configured to: when the indication information is a PMI disabling signaling indication, configure a precoding time domain granularity parameter/measurement restriction parameter of the CSI-RS, where it is determined whether the PMI disabling signaling indication is enabled; If yes, configure the precoding time domain granularity parameter K to be X. If the judgment result is no, configure the precoding time domain granularity parameter K to be Y; where X and Y are not equal, and X and Y are integers. And X ⁇ Y; or,
- a second configuration unit configured to: when the indication information is a feedback mode configuration signaling indication, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the detection feedback mode configuration signaling indication is Feedback mode; when the feedback mode is the first type of preset mode set, the precoding time domain granularity parameter K is set to X; when the feedback mode is the second type preset mode set or the third type preset mode set, the configuration pre The coded time domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, X is greater than or equal to 1, and X ⁇ Y;
- a third configuration unit configured to: when the indication information is the feedback category Class indication information, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the feedback category in the feedback category Class indication information is detected
- the precoding time domain granularity parameter K is X
- the precoding time domain granularity parameter K is set to Y; wherein, X and Y is not equal, X and Y are integers, X is greater than or equal to 1, and X ⁇ Y; or,
- a fourth configuration unit configured to configure a precoding time domain granularity parameter/measurement limit parameter of the channel state reference signal CSI-RS when the indication information is configured as a channel state reference signal, where a CSI is configured -RS configuration, the CSI-RS configuration includes multiple resource sets, one beam corresponding to one resource set, different resource sets corresponding to different beams, the resource set includes multiple ports, and the ports have the same precoding; After the base station determines the CSI-RS configuration, the high-frequency signaling/physical layer signaling indicates that the configuration pre-coding frequency domain granularity parameter is K; or
- a fifth configuration unit configured to: when the indication information is the feedback mode indication information, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the feedback mode indicates the feedback mode in the information;
- the precoding time domain granularity parameter K is set to X.
- the precoding time domain granularity parameter K is set to Y; wherein X and Y are not equal, X and Y is an integer, X is greater than or equal to 1, and X ⁇ Y; or,
- a sixth configuration unit configured to: when the indication information is the antenna port number indication information, configure a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the number of antenna ports used by the base station for transmission is In M1, the precoding time domain granularity parameter K is set to X; when the number of antenna ports used by the base station for transmission is M2, the precoding time domain granularity parameter K is set to Y; wherein X and Y are not equal, X and Y are An integer, when M1 is less than or equal to M2, X is greater than or equal to Y;
- a seventh configuration unit configured to: when the indication information is a report type of the CSI, configure a precoding time domain granularity parameter/measurement limit parameter of the channel state reference signal CSI-RS, wherein the time domain granularity parameter is related to the CSI report type
- the periodic feedback is periodically reset, and the reset period and/or subframe offset of the binding state is configured by the longest period of the CSI report type.
- the device for acquiring a channel parameter on the terminal side, the device includes: a receiving module and an acquiring module, where
- a receiving module configured to receive indication information sent by the base station
- an obtaining module configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- the device for acquiring channel parameters receives the indication information sent by the base station by using the terminal on the terminal side; the terminal acquires the precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the indication information, and solves the problem due to the CSI It is estimated that the noise effect brought by the conservative method leads to the problem that the best estimation performance cannot be obtained, and the effect of improving the estimation performance is achieved.
- the indication information includes at least one of the following: a precoding matrix indicator non-enabled PMI disabling signaling indication, a feedback mode configuration signaling indication, a feedback category Class indication information, and a
- the obtaining module includes:
- a first acquiring unit configured to: when the indication information is a PMI disabling signaling indication, acquire a precoding time domain granularity parameter/measurement limiting parameter of the CSI-RS, where it is determined whether the PMI disabling signaling indication is enabled; If yes, the pre-coding time domain granularity parameter K is X; if the determination result is negative, the pre-coding time domain granularity parameter K is obtained as Y; wherein X and Y are not equal, and X and Y are integers. And X ⁇ Y; or,
- a second acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is a feedback mode configuration signaling indication, where the detection feedback mode acquires the signaling indication
- the feedback mode when the feedback mode is the first type of preset mode set, the pre-coding time domain granularity parameter K is X; when the feedback mode is the second type preset mode set or the third type preset mode set, the acquisition pre- The coded time domain granularity parameter K is Y; wherein X and Y are not equal, X and Y are integers, and X ⁇ Y;
- a third acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the feedback category Class indication information, where the feedback category in the feedback category Class indication information is detected
- the pre-coding time domain granularity parameter K is X
- the pre-coding time domain granularity parameter K is obtained as Y; wherein, X and Y is not equal, X and Y are integers, and X ⁇ Y; or,
- a fourth acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the resource Resource specific indication information, where the terminal determines the base station configuration according to the resource Resource specific indication information a set of resource sets included in the CSI-RS configuration; the terminal obtains a precoding time domain granularity parameter of the channel state reference signal CSI-RS according to the received high layer/physical layer indication signaling; or
- a fifth acquiring unit configured to: when the indication information is the feedback mode indication information, acquire a precoding time domain granularity parameter/measurement restriction parameter of the channel state reference signal CSI-RS, where the feedback mode indicates the feedback mode in the information;
- the pre-coding time domain granularity parameter K is X;
- the pre-coding time domain granularity parameter K is obtained as Y; wherein, X ⁇ Y;
- a sixth acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is the antenna port number indication information, where the terminal determines the antenna port used by the base station for transmission
- the pre-coding time domain granularity parameter K is X
- the pre-coding time domain granularity parameter K is obtained as Y
- X and Y are not equal, X and Y are integers, and when M1 is less than or equal to M2, X is greater than or equal to Y;
- a seventh acquiring unit configured to acquire a precoding time domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS when the indication information is a report type of the CSI, where the CSI is determined by the longest period of the CSI report type. Periodic reset of the binding state of the RS and/or subframe offset of the bound state.
- FIG. 9 is a structural diagram of a channel parameter acquisition system according to an embodiment of the present invention. As shown in FIG. 9, the system includes: a base station 92 and a terminal 94. The base station 92 is in communication with the terminal 94, wherein
- the base station 92 is a configuration device for channel parameters according to any one of the fifth embodiment or the seventh embodiment;
- the terminal 94 is a device for acquiring channel parameters according to any one of Embodiment 6 or Embodiment 8.
- each of the above modules may be implemented by software or hardware.
- the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
- Embodiments of the present invention also provide a storage medium.
- the foregoing storage medium may be configured to store program code for performing the following steps:
- the base station receives the indication information.
- the base station configures a precoding frequency domain granularity parameter/measurement limiting parameter of the channel state reference signal CSI-RS according to the indication information.
- the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
- ROM Read-Only Memory
- RAM Random Access Memory
- a mobile hard disk e.g., a hard disk
- magnetic memory e.g., a hard disk
- the processor performs, according to the stored program code in the storage medium, the precoding frequency domain granularity parameter/measurement of the channel state reference signal CSI-RS configured by the base station according to the indication information.
- the step of limiting the parameter includes: mode 1, when the indication information is the high frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling indication, configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS
- the step includes: configuring the precoding frequency domain granularity parameter to be K according to the high frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signaling, and the precoding frequency domain granularity parameter K is 1, and let K be equal to M, where M is the maximum number of radio bearers in the current bandwidth.
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: determining the PMI disabling signaling indication Whether it is enabled; if the judgment result is yes, the precoding frequency domain granularity parameter K is set to X; if the judgment result is no, the precoding frequency domain granularity parameter K is set to Y; mode 3, when the indication information is When the signaling indication is configured for the feedback mode, the step of configuring the precoding frequency domain granularity parameter/measurement limiting parameter of the CSI-RS includes: detecting a feedback mode in the feedback mode configuration signaling indication; When the feedback mode is the first type of preset mode set, the precoding frequency domain granularity parameter K is set to X; when the feedback mode is the second type preset mode set or the third type preset mode set, the precoding frequency domain is configured.
- the granularity parameter K is Y.
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the feedback category in the feedback category Class indication information.
- the precoding frequency domain granularity parameter K is set to X; when the feedback category Class is the first feedback category, the precoding frequency domain granularity parameter K is set to Y;
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting the category type indication information of the channel state reference signal CSI-RS a class Type; when the class Type is the first class, the precoding frequency domain granularity parameter K is X; when the class Type is the second class, the precoding frequency domain granularity parameter K is set to Y;
- the indication information is the feedback mode indication information
- the step of configuring the precoding frequency domain granularity parameter/measurement restriction parameter of the CSI-RS includes: detecting a feedback manner in the feedback mode indication information; when the feedback mode is periodic feedback, The precoding frequency domain granularity parameter K is set to X; when the
- modules or steps of the present invention may be Implemented in a general-purpose computing device, which may be centralized on a single computing device or distributed across a network of computing devices, optionally, they may be implemented by program code executable by the computing device, such that They may be stored in a storage device by a computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or separately fabricated into individual integrated circuit modules. Alternatively, multiple modules or steps of them can be implemented as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
- An embodiment of the present invention provides a method, an apparatus, and a system for acquiring a channel parameter.
- the method includes: base station configuration indication information; and the base station configures a precoding frequency of a channel state reference signal CSI-RS according to the indication information.
- the domain granularity parameter/measurement limit parameter can solve the problem that the optimal estimation performance cannot be obtained due to the noise influence caused by the conservative method of CSI estimation, thereby achieving the effect of improving the estimation performance.
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Abstract
本发明实施例提供了一种信道参数的配置获取方法、装置及系统,通过本发明基站配置指示信息;基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
Description
本发明实施例涉及但不限于通信领域,具体而言,涉及一种信道参数的配置获取方法、装置及系统。
在实际的无线通信系统中,由于基站与终端之间的无线传播路径容易受到环境的影响,无线信道具有很大的随机性。因此,为了能够在终端准确的恢复基站发送的信号,必须对信道状态信息作出较为准确的估计。因此,信道状态信息(Channel State Information,简称CSI)估计的准确性对无线通信系统的性能而言具有至关重要的作用。
在早期的LTE版本,如Release 8(简称为Rel-8)版本中,终端通常采用公共参考信号(Common Reference Signal,简称为CRS)进行CSI估计,这一版本使用的参考信号(Reference Signal,简称RS)是非预编码的RS,这种RS一般采用基站的天线和天线端口一一映射的方式进行发送。在Rel-10版本中,为了能够使得终端可以对最大8个天线端口估计和反馈更大带宽的信道状态信息(Channel State Information,简称为CSI),引入了新的RS,即信道状态信息参考符号CSI-RS。与早期版本中的RS既用于CSI估计又用于信号解调不同,新引进的CSI-RS是由基站发送,专门用于进行信道测量的参考信号,终端基于基站发送的导频符号进行CSI估计,获得不同收发天线在不同时频资源位置的信道矩阵H的信息,继而可以基于信道矩阵H进行CSI量化及反馈。
随着3GPP标准的进一步演进,在Rel-13版本中又新引入了用于波束成形的CSI-RS(Beamformed CSI-RS,简称为BFed CSI-RS)。BFed CSI-RS是指基站在发射CSI-RS前,首先对CSI-RS进行预编码处理,所谓的预编码,就是在已知信道状态信息的情况下,通过在发送端对发送的信号做预先处理,以方便接收机进行信号检测。在LTE系统中,常用的预编码技术就是从预先定义的预编码矩阵集合中选取合适的预编码矩阵对RS进行加权处理,然后
再由基站发射出去。Rel-13引入的BFed CSI-RS,一般而言天线端口到基站天线间并不是一对一的映射,而是一对多的映射,并且在映射时采用了预编码技术,不同的预编码可以对应不同的波束方向。
BFed CSI-RS有多种配置方法实现,主要包括以下几种情况:
配置多套CSI-RS configuration:一个波束可以对应一套CSI-RS配置configuration,这种方式灵活性高,可以为不同的configuration配置不同的导频参数(周期,端口数,功率参数等),但配置信令开销大。每个CSI-RS configuration包含多个端口,这些端口一般具有相同的预编码,终端选择波束即为选择CSI-RS configuration;
配置一套CSI-RS configuration,但包含多个资源集合resource set一个波束可以对应一个resource set,这种方式灵活性一般,不能为不同的configuration配置不同的导频参数(周期,端口数,功率参数等),但配置信令开销少,resource set不同对应的波束不同,resource内可以包含多个端口,这些端口一般具有相同的预编码,终端选择波束即为选择resource set。
配置一套CSI-RS configuration一套resource set,但包含多个port group,port group不同对应的波束不同,port group内可以包含1个或多个端口,这些端口一般具有相同的预编码,终端选择波束即为选择port group。
BFed CSI-RS的选择一般要进行Beam Index的反馈,Beam Index一般为1个也可以为多个;后者开销较大应用场景会少一些。
目前的协议版本中,对于CSI-RS的导频进行信道的测量时,一般会采用以下技术:终端确定当前CSI量化对应的参考资源(CSI Reference Resource)位置,该CSI量化对应的参考资源一般位于最近一次发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前X个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计,通过时域相关性进行压噪,提升CSI估计性能。这里假设同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码,因此不同厂商的终端可以根据时域相关性的情况灵活的确定所述X的大小。另一方面,终端对每一个子帧内的资源块的CSI估计是根据接收到的每一个资源块上的CSI-RS进行估计的,假设同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行
预编码,那么终端可以对同一个资源块内的多个资源块上的Y个CSI-RS进行联合的CSI估计,通过频域相关性进行压噪,提升CSI估计性能。
3GPP还引入了CSI process的概念,基站可以为终端配置多个CSI process,每个CSI process相当于一个反馈进程,各个CSI process之间是独立的,可以分别进行参数配置。对CSI process的配置可以分为Class A和Class B两种反馈类别,前者主要应用于非预编码CSI-RS下的反馈,反馈量较大,例如需要反馈长期/宽带的统计的第一类预编码矩阵索引(Precoding Matrix Index,简称为PMI)和短期/子带的第二PMI,后者只需要基于预编码CSI-RS反馈较少的信道信息,例如短期/子带的第二PMI。
在LTE系统中,终端常采用的是相干检测方法,因此必须对信道进行估计。一般而言,采用相干检测方法,基站必须把已知的RS插入到发送信号结构中,这种CSI估计方法也称为基于导频的CSI估计方法。对于CSI估计方法的分类,从实现准则可以分为线性最小均方误差(Linear Minimum Mean Square Error,简称为LMMSE)估计和最小二乘估计(Least Square,简称为LS)估计等。
现有CSI估计技术的缺陷:从时域角度看,由于CSI-RS可以不同的时域子帧位置灵活的进行预编码,不同子帧位置的预编码可能不同,这种方式使得终端如果在信道测量时继续使用任意的X个子帧进行联合CSI估计,就会出现估计错误,因为不同的预编码导频之间的相关性受到预编码权值的影响,而终端无法预知所述预编码权值。同样的,从频域角度看,同一子帧内的不同资源块上的CSI-RS的预编码可能不同,这种方式使得终端如果在信道测量时继续使用任意的Y个资源块进行联合CSI估计,也会出现错误。因此在Rel-13版本中,为了不带来严重的估计错误,只能采用比较保守的方法,却导致不能获得最佳的估计性能的问题,针对该问题,目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种信道参数的配置获取方法、装置及系统,以至少解决相关技术中由于对CSI估计时采用保守方法带来的噪声影响,导致不
能获得最佳的估计性能的问题。
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
根据本发明实施例的一个方面,提供了一种信道参数的配置方法,包括:基站配置指示信息;所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
可选的,所述指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息和反馈方式指示信息。
可选的,所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
方式一,当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示配置所述预编码频域粒度参数为K;
方式二,当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码频域粒度参数K为X;在判断结果为否的情况下,配置所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式三,当所述指示信息为所述反馈模式配置信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码频域粒度参数K为Y;
方式四,当所述指示信息为所述反馈类别Class指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈类
别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码频域粒度参数K为Y;
方式五,当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,配置所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,配置所述预编码频域粒度参数K为Y;
方式六,当所述指示信息为所述反馈方式指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,配置所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
可选的,预编码频域粒度参数K依据所述当前带宽确定。
可选的,所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type包括以下至少之一:周期CSI-RS、非周期CSI-RS、预编码CSI-RS、非预编码CSI-RS、全带宽CSI-RS、部分带宽CSI-RS、聚合配置的CSI-RS和非聚合配置的CSI-RS。
可选的,所述预编码频域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
可选的,方法还包括:所述基站通过所述高层频域粒度参数配置信令或物理层频域粒度参数信令指示配置所述CSI-RS的绑定状态,所述绑定状态包括:绑定或无绑定。
根据本发明实施例的一方面,提供了另一种信道参数的获取方法,包括:终端接收基站发送的指示信息;所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
可选的,所述指示信息包括以下至少之一:高层频域粒度参数配置信令、
物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息、反馈方式指示信息和预设的粒度参数。
可选的,所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
方式一,当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示获取所述预编码频域粒度参数为K;
方式二,当所述指示信息为所述PMI disabling信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码频域粒度参数K为X;在判断结果为否的情况下,获取所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式三,当所述指示信息为所述反馈模式配置信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码频域粒度参数K为Y;
方式四,当所述指示信息为所述反馈类别Class指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,获取所述预编码频域粒度参数K为Y;
方式五,当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,获取所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,获取所述预编码频域粒度参数K为Y;
方式六,当所述指示信息为所述反馈方式指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;
方式七,当所述指示信息为所述预设的粒度参数时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据所述预设的粒度参数获取所述预编码频域粒度参数为K。
可选的,所述预编码频域粒度参数K依据所述当前带宽确定。
可选的,所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type包括以下至少之一:周期CSI-RS、非周期CSI-RS、预编码CSI-RS、非预编码CSI-RS、全带宽CSI-RS、部分带宽CSI-RS、聚合配置的CSI-RS和非聚合配置的CSI-RS。
可选的,所述预编码频域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
可选的,所述方法还包括:所述终端通过所述高层频域粒度参数配置信令或物理层频域粒度参数信令指示获取所述CSI-RS的绑定状态,所述绑定状态包括:绑定或无绑定。
根据本发明实施例的一个方面,提供了又一种信道参数的配置方法,包括:基站配置指示信息;所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
可选的,所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号配置CSI-RS configuration指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型。
可选的,所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
方式一,当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码时域粒度参数K为X;在判断结果为否的情况下,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式二,当所述指示信息为所述反馈模式配置信令指示时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式三,当所述指示信息为所述反馈类别Class指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;
方式四,当所述指示信息为所述信道状态参考信号配置CSI-RS configuration指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:所述基站配置一套CSI-RS configuration,所述CSI-RS configuration包含多个资源集合,一个波束对应一个资源集合,所述资源集合不同对应的波束不同,所述资源集合内包含多个端口,所述端口具有相同的预编码;在所述基站确定CSI-RS configuration后,通过高层信令/物理层信令指示配置所述预编码时域粒度参数为K;
方式五,当所述指示信息为所述反馈方式指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,配置所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X
大于或等于1,且X<Y;
方式六,当所述指示信息为所述天线端口数指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:当所述基站用于传输的天线端口数为M1时,配置所述预编码时域粒度参数K为X;当所述基站用于传输的天线端口数为M2时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;
方式七,当所述指示信息为CSI的报告类型时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:依据时域粒度参数会随着所述CSI的报告类型的周期性反馈而周期性的重置,所述基站通过所述CSI的报告类型的最长周期来配置绑定状态的重置周期和/或子帧偏置。
可选的,所述预编码时域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
根据本发明实施例的一个方面,提供了再一种信道参数的获取方法,包括:终端接收基站发送的指示信息;
所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
可选的,所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、资源Resource specific指示信息、反馈方式指示信息、天线端口数指示信息和CSI报告类型。
可选的,所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
方式一,当所述指示信息为所述PMI disabling信令指示时,获取所述CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码时域粒度参数K为X;在判断结果为否的情况下,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式二,当所述指示信息为所述反馈模式配置信令指示时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈模式获取信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式三,当所述指示信息为所述反馈类别Class指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
方式四,当所述指示信息为所述资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:所述终端依据所述资源Resource specific指示信息确定基站配置的一套CSI-RS configuration中包含的资源集合数;所述终端依据接收到的高层/物理层指示信令获取信道状态参考信号CSI-RS的预编码时域粒度参数为K;
方式五,当所述指示信息为所述反馈方式指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码时域粒度参数K为Y;其中,X<Y;
方式六,当所述指示信息为所述天线端口数指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:当所述终端确定基站用于传输的天线端口数为M1时,获取所述预编码时域粒度参数K为X;当所述终端确定基站用于传输的天线端口数为M2时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;
方式七,当所述指示信息为CSI的报告类型时,获取信道状态参考信号
CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:所述终端通过所述CSI的报告类型的最长周期确定CSI-RS的绑定状态的周期性重置和/或绑定状态的子帧偏置。
可选的,所述预编码时域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
根据本发明实施例的另一方面,提供了一种信道参数的配置装置,包括:第一配置模块,用于配置指示信息;第二配置模块,用于依据所述指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
可选的,在所述指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息和反馈方式指示信息的情况下,所述第二配置模块,包括:
第一配置单元,用于当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示配置所述预编码频域粒度参数为K;或者,
第二配置单元,用于当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码频域粒度参数K为X;在判断结果为否的情况下,配置所述预编码频域粒度参数K为Y,其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第三配置单元,用于当所述指示信息为所述反馈模式配置信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码频域粒度参数K为Y;或者,
第四配置单元,用于当所述指示信息为所述反馈类别Class指示信息时,
配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码频域粒度参数K为Y;或者,
第五配置单元,用于当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,配置所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,配置所述预编码频域粒度参数K为Y;或者,
第六配置单元,用于当所述指示信息为所述反馈方式指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;用于当所述反馈方式为周期性反馈时,配置所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
根据本发明实施例的另一方面,提供了另一种信道参数的获取装置,包括:接收模块,用于接收基站发送的指示信息;获取模块,用于依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
可选的,接收模块,用于接收基站发送的指示信息;获取模块,用于依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
根据本发明实施例的另一方面,提供了又一种信道参数的配置装置,包括:第一配置模块,用于配置指示信息;第二配置模块,用于依据所述指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
可选的,在所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号配置CSI-RS configuration指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型的情况下,所述第二配置模块包
括:
第一配置单元,用于当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码时域粒度参数/测量限制参数,其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码时域粒度参数K为X;在判断结果为否的情况下,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第二配置单元,用于当所述指示信息为所述反馈模式配置信令指示时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第三配置单元,用于当所述指示信息为所述反馈类别Class指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,
第四配置单元,用于当所述指示信息为所述信道状态参考信号配置CSI-RS configuration指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,配置一套CSI-RS configuration,所述CSI-RS configuration包含多个资源集合,一个波束对应一个资源集合,所述资源集合不同对应的波束不同,所述资源集合内包含多个端口,所述端口具有相同的预编码;在确定CSI-RS configuration后,通过高层信令/物理层信令指示配置所述预编码时域粒度参数为K;或者,
第五配置单元,用于当所述指示信息为所述反馈方式指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,配置所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,
配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,
第六配置单元,用于当所述指示信息为所述天线端口数指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,当所述基站用于传输的天线端口数为M1时,配置所述预编码时域粒度参数K为X;当所述基站用于传输的天线端口数为M2时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;
第七配置单元,用于当所述指示信息为CSI的报告类型时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,依据时域粒度参数会随着所述CSI的报告类型的周期性反馈而周期性的重置,通过所述CSI的报告类型的最长周期来配置绑定状态的重置周期和/或子帧偏置。
根据本发明实施例的另一方面,提供了再一种信道参数的获取装置,包括:接收模块,用于接收基站发送的指示信息;获取模块,用于依据所述指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
可选的,在所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、资源Resource specific指示信息、反馈方式指示信息、天线端口数指示信息和CSI报告类型的情况下,所述获取模块包括:
第一获取单元,用于当所述指示信息为所述PMI disabling信令指示时,获取所述CSI-RS的预编码时域粒度参数/测量限制参数,其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码时域粒度参数K为X;在判断结果为否的情况下,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第二获取单元,用于当所述指示信息为所述反馈模式配置信令指示时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈模式获取信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码时域粒度参数
K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第三获取单元,用于当所述指示信息为所述反馈类别Class指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第四获取单元,用于当所述指示信息为所述资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,依据所述资源Resource specific指示信息确定基站配置的一套CSI-RS configuration中包含的资源集合数;依据接收到的高层/物理层指示信令获取信道状态参考信号CSI-RS的预编码时域粒度参数为K;或者,
第五获取单元,用于当所述指示信息为所述反馈方式指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码时域粒度参数K为Y;其中,X<Y;或者,
第六获取单元,用于当所述指示信息为所述天线端口数指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,当所述终端确定基站用于传输的天线端口数为M1时,获取所述预编码时域粒度参数K为X;当所述终端确定基站用于传输的天线端口数为M2时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;
第七获取单元,用于当所述指示信息为CSI的报告类型时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,通过所述CSI的报告类型的最长周期确定CSI-RS的绑定状态的周期性重置和/或绑定状态的子帧偏置。
根据本发明实施例的又一方面,提供了一种信道参数的配置获取系统,包括:基站和终端,基站与终端通信连接,其中,基站为上述一种信道参数
的获取装置和又一种信道参数的获取装置中任一的信道参数的获取装置;终端为上述另一种信道参数的获取装置和再一种信道参数的获取装置中任一项的信道参数的获取装置。
通过本发明实施例,采用基站配置指示信息;基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是根据本发明实施例的信道参数的配置方法的流程图;
图2是根据本发明实施例的一种信道参数的获取方法的流程图;
图3是根据本发明实施例的另一种信道参数的配置方法的流程图;
图3-a是绑定粒度为K=2时的配置状态示意图;
图4是根据本发明实施例的另一种信道参数的获取方法的流程图;
图4-a是终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图;
图5-a是根据最长周期重置绑定状态和/或子帧偏置的示意图;
图5是根据本发明实施例的信道参数的配置装置的结构框图;
图6是根据本发明实施例的一种信道参数的配置装置的结构框图;
图7是根据本发明另一实施例的信道参数的获取装置的结构框图;
图8是根据本发明另一实施例的一种信道参数的获取装置的结构框图;以及,
图9是根据本发明实施例的信道参数的配置获取获取系统的结构图。
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是,本发明实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
在本申请实施例提供的一种信道参数的获取方法、装置及系统里,基站包括但不限于:宏基站、微基站、无线接入点等各种无线通信设备。终端包括但不限于:数据卡、手机、笔记本电脑、个人电脑、平板电脑、个人数字助理、蓝牙等各种终端以及中继、拉远设备、无线接入点等各种无线通信设备。
实施例一
在本实施例中提供了一种信道参数的配置方法,图1是根据本发明实施例的信道参数的获取方法的流程图,如图1所示,在基站侧,该流程包括如下步骤:
步骤S102,基站配置指示信息;
步骤S104,基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
具体的,在基站侧,本申请实施例提供的信道参数的获取方法可以适用于信道状态信息(Channel State Information,简称CSI)的估计方法,通过配置CSI-RS的预编码频域粒度参数对CSI进行估计,提升CSI估计的性能,其中,首先,基站配置指示信息,其次,基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数。
通过上述步骤,通过基站配置指示信息;基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,指示信息包括以下至少之一:高层频域粒度参数配置信令、物
理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、信道状态参考信号CSI-RS的类别Type指示信息和反馈方式指示信息。
可选的,基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
方式一,当指示信息为高层频域粒度参数配置信令或物理层频域粒度参数信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里依据高层频域粒度参数配置信令或物理层频域粒度参数信令指示配置预编码频域粒度参数为K,预编码频域粒度参数K为1,且令K等于M,其中,M为当前带宽最大的无线承载RB数;
具体的,情景一,当指示信息为高层频域粒度参数配置信令时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过当前带宽配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。带宽大小与绑定粒度之间的关系由如下表1所示,表1是带宽与绑定粒度关系表。
表1
其中,Ki(1≤i≤6),U,V均为整数且U>20,V>100,并且K0≤K1≤K2≤K3≤K4≤K5≤K6,也即对于更大的带宽,对CSI-RS的绑定粒度更大。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同
一组内的RB采用相同的预编码矩阵,也即:
情景二,当指示信息为物理层频域粒度参数信令指示时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过当前带宽配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。带宽大小与绑定粒度之间的关系由表1约束。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
方式二,当指示信息为PMI disabling信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里判断PMI disabling信令指示是否使能;在判断结果为是的情况下,配置预编码频域粒度参数K为X;在判断结果为否的情况下,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
具体的,当指示信息为PMI disabling信令指示时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过使能PMI disabling或不使能PMI disabling信令配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K,并且约定基站使能PMI disabling信令时的绑定粒度小于等于不使能PMI disabling信令时的绑定粒度。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
方式三,当指示信息为反馈模式配置信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,配置预编码频域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
具体的,当指示信息为反馈模式配置信令指示时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过反馈模式配置信令配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站配置反馈模式为x-0,约定其指示绑定粒度K=X,反馈模式为x-1或x-2的模式时,约定其指示绑定粒度K=Y,X和Y为不同的整数,1<=X,Y<=M,M为当前带宽最大RB数,并且满足X<Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
方式四,当指示信息为反馈类别Class指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,配置预编码频域粒度参数K为X;当反馈类别Class为第一反馈类别时,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
具体的,当指示信息为反馈类别Class指示信息时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过反馈类别(Class)指示配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站配置反馈类别为Class B时,约定其指示绑定粒度K=X,反馈类别为Class A时,约定其指示绑定粒度K=Y,X和Y为不同的整数,1<=X,Y<=M,M为当前带宽最大RB数,并且满足X<Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。具体的说,假设带宽内总共有M个RB,则
最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
方式五,当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当类别Type为第一类别时,配置预编码频域粒度参数K为X;当类别Type为第二类别时,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
具体的,当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过CSI-RS类别(Type)指示信息配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K:
当为周期CSI-RS时,约定其指示绑定粒度K=X;当为非周期CSI-RS时,约定其指示绑定粒度K=Y,其中X,Y均为整数且1<=X,Y<=M。对于
周期的CSI-RS,基站配置的绑定粒度固定不变。对于非周期的CSI-RS,基站配置的绑定粒度可以根据信道条件的变化动态调整以匹配信道变化。
当为非预编码的CSI-RS时,约定其指示绑定粒度K=X;当为预编码的CSI-RS时,约定其指示绑定粒度K=Y,其中X,Y均为整数且1<=Y<=X<=M。
当为非聚合的CSI-RS时,约定其指示绑定粒度K=X;当为聚合的CSI-RS时,约定其指示绑定粒度K=Y,其中X,Y均为整数且1<=X<=Y<=M。
当为部分带宽的CSI-RS时,约定其指示绑定粒度K=X;当为全带宽的CSI-RS时,约定其指示绑定粒度K=Y,其中X,Y均为整数且1<=X<=Y<=M。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。更具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
方式六,当指示信息为反馈方式指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,配置预编码频域粒度参数K为X;当反馈方式为非周期性反馈时,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
具体的,当指示信息为反馈方式指示信息时,基站配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站通过反馈方式指示配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站配置反馈方式为周期性反馈时,约定其指示绑定粒度K=X,反馈方式为非周期性反馈时,约定其指示绑定粒度K=Y,X和Y为不同的整数,1<=X,Y<=M,M为当前带宽最大RB数,并且满足X<Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
可选的,预编码频域粒度参数K依据当前带宽确定。
可选的,信道状态参考信号CSI-RS的类别Type指示信息中的类别Type包括以下至少之一:周期CSI-RS、非周期CSI-RS、预编码CSI-RS、非预编码CSI-RS、全带宽CSI-RS、部分带宽CSI-RS、聚合配置的CSI-RS和非聚合配置的CSI-RS。
可选的,预编码频域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
可选的,方法还包括:基站通过高层频域粒度参数配置信令或物理层频域粒度参数信令指示配置CSI-RS的绑定状态,绑定状态包括:绑定或无绑定。
实施例二
在本实施例中提供了另一种信道参数的获取方法,图2是根据本发明实施例的一种信道参数的确定方法的流程图,如图2所示,在终端侧,该流程包括如下步骤:
步骤S202,终端接收基站发送的指示信息;
步骤S204,终端依据指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
这里,对应图1提供的实施例,在终端侧,本申请实施例通过终端接收基站发送的指示信息,依据该指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数,进而依据预编码频域粒度参数对CSI进行估计,最终达到提升估计性能的效果。
通过上述步骤,通过终端接收基站发送的指示信息;终端依据指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、信道状态参考信号
CSI-RS的类别Type指示信息、反馈方式指示信息和预设的粒度参数。
可选的,终端依据指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
方式一,当指示信息为高层频域粒度参数配置信令或物理层频域粒度参数信令指示时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里依据高层频域粒度参数配置信令或物理层频域粒度参数信令指示获取预编码频域粒度参数为K,预编码频域粒度参数K为1,且令K等于M,其中,M为当前带宽最大的无线承载RB数;
具体的,情景一,当指示信息为高层频域粒度参数配置信令时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到高层信令,通过高层信令的指示信息并由实施例一中的表1中的约束关系确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。更具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
情景二,当指示信息为物理层频域粒度参数信令指示时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到物理层频域粒度参数配置信令,通过频域粒度参数配置信令的指示信息并由表1中的约束关系确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
方式二,当指示信息为PMI disabling信令指示时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里判断PMI disabling信令指示是否使能;在判断结果为是的情况下,获取预编码频域粒度参数K为X;在判断结果为否的情况下,获取预编码频域粒度参数K为Y;
具体的,当指示信息为PMI disabling信令指示时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到PMI disabling信令,通过PMI disabling信令的指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
方式三,当指示信息为反馈模式配置信令指示时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,获取预编码频域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,获取预编码频域粒度参数K为Y;
具体的,当指示信息为反馈模式配置信令指示时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到反馈模式指示信令,通过反馈模式指示信令的指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,
采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
方式四,当指示信息为反馈类别Class指示信息时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,获取预编码频域粒度参数K为X;当反馈类别Class为第一反馈类别时,获取预编码频域粒度参数K为Y;
具体的,当指示信息为反馈类别Class指示信息时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到反馈类别(class)指示信息,通过反馈类别(class)指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同
一组的各个RB的CSI进行估计,也即:
方式五,当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当类别Type为第一类别时,获取预编码频域粒度参数K为X;当类别Type为第二类别时,获取预编码频域粒度参数K为Y;
具体的,当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到CSI-RS类别(Type)指示信息,通过CSI-RS类别(Type)指示信息确定CSI-RS的绑定状态和绑定粒度K:
当为周期CSI-RS时,终端确定CSI-RS的绑定粒度K=X;当为非周期CSI-RS时,终端确定CSI-RS的绑定粒度K=Y,其中X,Y均为整数且1<=X,Y<=M。
当为非预编码的CSI-RS时,终端确定CSI-RS的绑定粒度K=X;当为预编码的CSI-RS时,终端确定CSI-RS的绑定粒度K=Y,其中X,Y均为整数且1<=Y<=X<=M。
当为非聚合的CSI-RS时,终端确定CSI-RS的绑定粒度K=X;当为聚合的CSI-RS时,终端确定CSI-RS的绑定粒度K=Y,其中X,Y均为整数且1<=X<=Y<=M。
当为部分带宽的CSI-RS时终端确定CSI-RS的绑定粒度K=X;当为全带宽的CSI-RS时,终端确定CSI-RS的绑定粒度K=Y,其中X,Y均为整数且1<=X<=Y<=M。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
方式六,当指示信息为反馈方式指示信息时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,获取预编码频域粒度参数K为X;当反馈方式为非周期性反馈时,获取预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;
具体的,当指示信息为反馈方式指示信息时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
终端接收到反馈方式指示信息,通过反馈方式指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
方式七,当指示信息为预设的粒度参数时,获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
这里依据预设的粒度参数获取预编码频域粒度参数为K。
具体的,当指示信息为预设的粒度参数时,终端获取CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:
基站实现方式:基站按照约定的频域粒度参数配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。更具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
终端实现方式:终端按照约定的频域粒度参数配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K,并且在通信过程中终端始终依据该约定进行CSI的估计。
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
可选的,预编码频域粒度参数K依据当前带宽确定。
可选的,信道状态参考信号CSI-RS的类别Type指示信息中的类别Type包括以下至少之一:周期CSI-RS、非周期CSI-RS、预编码CSI-RS、非预编码CSI-RS、全带宽CSI-RS、部分带宽CSI-RS、聚合配置的CSI-RS和非聚合配置的CSI-RS。
可选的,预编码频域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
可选的,方法还包括:终端通过高层频域粒度参数配置信令或物理层频域粒度参数信令指示获取CSI-RS的绑定状态,绑定状态包括:绑定或无绑定。
实施例三
在本实施例中提供了又一种信道参数的配置方法,图3是根据本发明实施例的另一种信道参数的配置方法的流程图,如图3所示,在基站侧,该流程包括如下步骤:
步骤S302,基站配置指示信息;
步骤S304,基站依据指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
区别于图1对应的实施例,本申请实施例提供的信道参数的获取方法为基站依据配置的指示信息,配置CSI-RS的预编码时域粒度参数。
通过上述步骤,在基站侧,通过基站配置指示信息;基站依据指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,指示信息包括以下至少之一:预编码矩阵指示符非使能PMI
disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、信道状态参考信号配置CSI-RS configuration指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型。
可选的,基站依据指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
方式一,当指示信息为PMI disabling信令指示时,配置CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里判断PMI disabling信令指示是否使能;在判断结果为是的情况下,配置预编码时域粒度参数K为X;在判断结果为否的情况下,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
具体的,当指示信息为PMI disabling信令指示时,基站配置CSI-RS的预编码时域粒度参数的步骤包括:
基站通过使能PMI disabling或不使能PMI disabling信令配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K,并且约定基站使能PMI disabling信令时的绑定粒度小于等于不使能PMI disabling信令时的绑定粒度。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从当前子帧开始,对连续的K个子帧上的CSI-RS进行绑定,即这连续的K个子帧上的同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码。图3-a描述了绑定粒度为K=2时的配置状态。
方式二,当指示信息为反馈模式配置信令指示时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,配置预编码时域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
具体的,当指示信息为反馈模式配置信令指示时,基站配置信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
基站通过反馈模式配置信令配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站配置反馈模式为x-0,约定其指示绑定粒度K=X,反
馈模式为x-1或x-2的模式时,约定其指示绑定粒度K=Y,X和Y为不同的整数,并且满足X<Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从当前子帧开始,对连续的K个子帧上的CSI-RS进行绑定,即这连续的K个子帧上的同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码。图3-a描述了绑定粒度为K=2时的配置状态。
方式三,当指示信息为反馈类别Class指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,配置预编码时域粒度参数K为X;当反馈类别Class为第一反馈类别时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;
具体的,当指示信息为反馈类别Class指示信息时,基站配置信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
基站通过反馈类别(Class)指示配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站配置反馈类别为Class B时,约定其指示绑定粒度K=X,反馈类别为Class A时,约定其指示绑定粒度K=Y,X和Y为不同的整数,并且满足X<Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从当前子帧开始,对连续的K个子帧上的CSI-RS进行绑定,即这连续的K个子帧上的同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码。图3-a描述了绑定粒度为K=2时的配置状态。
方式四,当指示信息为信道状态参考信号配置CSI-RS configuration指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里基站配置一套CSI-RS configuration,CSI-RS configuration包含多个资源集合,一个波束对应一个资源集合,资源集合不同对应的波束不同,资源集合内包含多个端口,端口具有相同的预编码;在基站确定CSI-RS
configuration后,通过高层信令/物理层信令指示配置预编码频域粒度参数为K;
具体的,当指示信息为信道状态参考信号配置CSI-RS configuration指示信息时,基站配置信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
基站确定CSI-RS configuration,包括CSI资源集合数、每个CSI资源集合内包含的端口数以及这些端口所采用的预编码矩阵。基站通过高层/物理层信令指示绑定粒度K值。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从当前子帧开始,对连续的K个子帧上的CSI-RS进行绑定,即这连续的K个子帧上的同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码。图3-a描述了绑定粒度为K=2时的配置状态。
方式五,当指示信息为反馈方式指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,配置预编码时域粒度参数K为X;当反馈方式为非周期性反馈时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;
具体的,当指示信息为反馈方式指示信息时,基站配置信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
基站通过反馈方式指示配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站配置反馈方式为周期性反馈时,约定其指示绑定粒度K=X,反馈方式为非周期性反馈时,约定其指示绑定粒度K=Y,X和Y为不同的整数,并且满足X<Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从当前子帧开始,对连续的K个子帧上的CSI-RS进行绑定,即这连续的K个子帧上的同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码。图3-a描述了绑定粒度为K=2时的配置状态。
方式六,当指示信息为天线端口数指示信息时,配置信道状态参考信号
CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里当基站用于传输的天线端口数为M1时,配置预编码时域粒度参数K为X;当基站用于传输的天线端口数为M2时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y。
具体的,当指示信息为天线端口数指示信息时,基站配置信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
基站通过天线端口数指示配置CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。基站用于传输的天线端口数为M1时,约定其指示绑定粒度K=X,用于传输的天线端口数为M2时,约定其指示绑定粒度K=Y,X和Y为不同的整数。此外,当M1<=M2时,X>=Y。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从当前子帧开始,对连续的K个子帧上的CSI-RS进行绑定,即这连续的K个子帧上的同一套CSI-RS的导频配置内包含的CSI-RS具有相同的预编码或没有进行预编码。图3-a描述了绑定粒度为K=2时的配置状态。
方式七,当指示信息为CSI的报告类型时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
依据时域粒度参数会随着CSI报告类型的周期性反馈而周期性的重置,基站通过CSI报告类型的最长周期来配置绑定状态的重置周期和/或子帧偏置。
具体的,基站实现方式:基站确定CSI的报告类型,包括CQI/RI/PMI的报告周期和/或子帧偏置,然后基站根据最长周期重置CSI-RS的绑定状态和/或子帧偏置。如图5-a所示,CQI/PMI/RI的反馈周期各不相同,但是RI的反馈周期最大,则以RI的反馈周期重置CSI-RS的绑定状态。
可选的,预编码时域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
此外,在基站侧,还可以通过联合方式一与方式三配置CSI-RS的状态,即,由PMI disabling信令与反馈类别联合确定的状态表配置CSI-RS的状态,具体如下所示:
基站根据如下表2由PMI disabling信令与反馈类别联合确定的状态表配置CSI-RS的状态:
表2 PMI disabling信令与反馈类型联合状态表,如表2所示。
表2
反馈类别A(Class A) | 反馈类别B(Class B) | |
使能PMI disabling | K0,A | K0,B |
不使能PMI disabling | K1,A | K1,B |
表2中的四个参数满足约束条件:K0,A,K0,B,K1,A,K1,B均为整数且1≤K0,
A≤K0,B≤K1,A≤K1,B≤M,其中M为带宽内的RB的个数。
当绑定粒度为K时,基站对CSI-RS的绑定方法为:基站从第一个RB开始,将连续的K个RB上的CSI-RS进行绑定,也即这连续的K个RB上的CSI-RS采用相同的预编码。更具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。基站对同一组内的RB采用相同的预编码矩阵,也即:
实施例四
在本实施例中提供了再一种信道参数的获取方法,图4是根据本发明实
施例的另一种信道参数的获取方法的流程图,如图4所示,在终端侧,该流程包括如下步骤:
步骤S402,终端接收基站发送的指示信息;
步骤S404,终端依据指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
区别于图2终端获取CSI-RS的预编码频域粒度参数,本申请实施例提供的信道参数的获取方法通过终端接收指示信息,进而依据指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数。
通过上述步骤,在终端侧,通过终端接收基站发送的指示信息;终端依据指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、资源Resource specific指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型。
可选的,终端依据指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
方式一,当指示信息为PMI disabling信令指示时,获取CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里判断PMI disabling信令指示是否使能;在判断结果为是的情况下,获取预编码时域粒度参数K为X;在判断结果为否的情况下,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
具体的,当指示信息为PMI disabling信令指示时,终端获取CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
终端接收到PMI disabling信令,通过PMI disabling信令的指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端确定当前CSI量化对应的CSI-RS的位置,该CSI量化对应的参考资源一般位于最近一次
发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前K个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计。图4-a为终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图。
方式二,当指示信息为反馈模式配置信令指示时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里检测反馈模式获取信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,获取预编码时域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
具体的,当指示信息为反馈模式配置信令指示时,终端获取信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
终端接收到反馈模式指示信息,通过反馈模式指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端确定当前CSI量化对应的CSI-RS的位置,该CSI量化对应的参考资源一般位于最近一次发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前K个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计。图4-a为终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图。
方式三,当指示信息为反馈类别Class指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,获取预编码时域粒度参数K为X;当反馈类别Class为第一反馈类别时,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;
具体的,当指示信息为反馈类别Class指示信息时,终端获取信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
终端接收到反馈类别(class)指示信息,通过反馈类别(class)的指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端确定当前CSI
量化对应的CSI-RS的位置,该CSI量化对应的参考资源一般位于最近一次发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前K个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计。图4-a为终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图。
方式四,当指示信息为资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里终端依据资源Resource specific指示信息确定基站配置的一套CSI-RS configuration中包含的资源集合数;终端依据接收到的高层/物理层指示信令获取信道状态参考信号CSI-RS的预编码时域粒度参数为K;
具体的,当指示信息为资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
终端从接收到的数据确定基站配置的一套CSI-RS configuration中包含的资源集合数。终端接收到高层/物理层指示信令获取CSI-RS绑定粒度K值,然后终端利用绑定的资源集合中的资源进行联合CSI估计。
在确定绑定粒度K后,终端对CSI估计的方法为:终端确定当前CSI量化对应的CSI-RS的位置,该CSI量化对应的参考资源一般位于最近一次发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前K个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计。图4-a为终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图。
方式五,当指示信息为反馈方式指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,获取预编码时域粒度参数K为X;当反馈方式为非周期性反馈时,获取预编码时域粒度参数K为Y;其中,X<Y;
具体的,当指示信息为反馈方式指示信息时,终端获取信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
终端接收到反馈方式指示信息,通过反馈方式指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端确定当前CSI
量化对应的CSI-RS的位置,该CSI量化对应的参考资源一般位于最近一次发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前K个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计。图4-a为终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图。
方式六,当指示信息为天线端口数指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
这里当终端确定基站用于传输的天线端口数为M1时,获取预编码时域粒度参数K为X;当终端确定基站用于传输的天线端口数为M2时,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y。
具体的,当指示信息为天线端口数指示信息时,终端获取信道状态参考信号CSI-RS的预编码时域粒度参数的步骤包括:
终端从接收到的数据中确定用于传输的天线端口数,通过天线端口数指示信息确定CSI-RS的绑定状态和绑定粒度K。
在确定绑定粒度K后,终端对CSI估计的方法为:终端确定当前CSI量化对应的CSI-RS的位置,该CSI量化对应的参考资源一般位于最近一次发送的需要针对其进行量化反馈的CSI-RS所在子帧,终端对CSI-RS所在子帧及之前K个CSI-RS的发送子帧中发送的CSI-RS进行联合的CSI估计。图4-a为终端确定CSI-RS配置状态为K=2后的CSI联合估计示意图。
方式七,当指示信息为CSI的报告类型时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:
终端通过CSI报告类型的最长周期确定CSI-RS的绑定状态的周期性重置和/或绑定状态的子帧偏置。
具体的,终端实现方式:终端获取CSI的报告类型,包括CQI/RI/PMI的反馈周期。通过CQI/RI/PMI的反馈周期确定出最长反馈周期,根据最长反馈周期得到CSI-RS的绑定状态和/或子帧偏置。终端获取CSI-RS的绑定状态后,根据CSI-RS的绑定状态进行CSI的联合估计。
可选的,预编码时域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,或者网络设备等)执行本发明各个实施例的方法。
在本实施例中还提供了一种信道参数的获取装置,该装置用于实现上述实施例及优选实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
此外,在终端侧,也可以通过联合方式一与方式三配置CSI-RS的状态,即,终端接收到disabling信令与反馈类别指示信息,通过实施例三中的表2中由disabling信令和反馈类别联合确定的状态表来确定CSI-RS的状态,包括CSI-RS的绑定状态和绑定粒度K。具体如下所示:
在确定绑定粒度K后,终端对CSI估计的方法为:终端从第一个RB开始,将连续的K个RB分成一组,利用每一组RB内的所有的CSI-RS资源,采用LMMSECSI估计方法对CSI进行估计。具体的说,假设带宽内总共有M个RB,则最多将这M个RB分为N+1组,其中M=KN+Q,K、N和Q都为整数且0≤Q<K。于是,前N组每组含有K个RB,最后一组含有Q个RB。终端利用同一组内的RB的所有CSI-RS采用LMMSE估计算法对同一组的各个RB的CSI进行估计,也即:
实施例五
图5是根据本发明实施例的信道参数的配置装置的结构框图,如图5所示,在基站侧,该装置包括:第一配置模块51和第二配置模块52,其中,
第一配置模块51,用于配置指示信息;
第二配置模块52,用于依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
这里第一配置模块51和第二配置模块52对应图1实施中的步骤S102和步骤S104。
本申请实施例提供的信道参数的获取装置,在基站侧,通过基站配置指示信息;基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,图6是根据本发明实施例的一种信道参数的配置装置的结构框图,如图6所示,在指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、信道状态参考信号CSI-RS的类别Type指示信息和反馈方式指示信息的情况下,第二配置模块52,包括:第一配置单元521、第二配置单元522、第三配置单元523、第四配置单元524、第五配置单元525和第六配置单元526,其中,
第一配置单元521,用于当指示信息为高层频域粒度参数配置信令或物理层频域粒度参数信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数,其中,依据高层频域粒度参数配置信令或物理层频域粒度参数信令指示配置预编码频域粒度参数为K,预编码频域粒度参数K为1,且令K等于M,其中,M为当前带宽最大的无线承载RB数;或者,
第二配置单元522,用于当指示信息为PMI disabling信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数,其中,判断PMI disabling信令指示是否使能;在判断结果为是的情况下,配置预编码频域粒度参数K为X;在判断结果为否的情况下,配置预编码频域粒度参数K为Y;或者,
第三配置单元523,用于当指示信息为反馈模式配置信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数;其中,检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,配置预编码频域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,配置预编码频域粒度参数K为Y;或者,
第四配置单元524,用于当指示信息为反馈类别Class指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,配置预编码频域粒度参数K为X;当反馈类别Class为第一反馈类别时,配置预编码频域粒度参数K为Y;或者,
第五配置单元525,用于当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当类别Type为第一类别时,配置预编码频域粒度参数K为X;当类别Type为第二类别时,配置预编码频域粒度参数K为Y;或者,
第六配置单元526,用于当指示信息为反馈方式指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测反馈方式指示信息中的反馈方式;用于当反馈方式为周期性反馈时,配置预编码频域粒度参数K为X;当反馈方式为非周期性反馈时,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
实施例六
图7是根据本发明另一实施例的信道参数的获取装置的结构框图,如图7所示,在终端侧,该装置包括:接收模块72和获取模块74,其中,
接收模块72,用于接收基站发送的指示信息;
获取模块74,用于依据指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
这里本申请实施例中的接收模块72和获取模块74对应图2中的步骤S202和步骤S204。
本申请实施例提供的信道参数的获取装置,在终端侧,通过终端接收基站发送的指示信息;终端依据指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,图8是根据本发明另一实施例的一种信道参数的获取装置的结构框图,如图8所示,在指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、信道状态参考信号CSI-RS的类别Type指示信息、反馈方式指示信息和预设的粒度参数的情况下,获取模块74包括:第一获取单元741、第二获取单元742、第三获取单元743、第四获取单元744、第五获取单元745、第六获取单元746和第七获取单元747,其中,
第一获取单元741,用于当指示信息为高层频域粒度参数配置信令或物理层频域粒度参数信令指示时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,依据高层频域粒度参数配置信令或物理层频域粒度参数信令指示获取预编码频域粒度参数为K,预编码频域粒度参数K为1,且令K等于M,其中,M为当前带宽最大的无线承载RB数;或者,
第二获取单元742,用于当指示信息为PMI disabling信令指示时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,判断PMI disabling信令指示是否使能;在判断结果为是的情况下,获取预编码频域粒度参数K为X;在判断结果为否的情况下,获取预编码频域粒度参数K为Y;或者,
第三获取单元743,用于当指示信息为反馈模式配置信令指示时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,获取预编码频域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集
合时,获取预编码频域粒度参数K为Y;或者,
第四获取单元744,用于当指示信息为反馈类别Class指示信息时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,获取预编码频域粒度参数K为X;当反馈类别Class为第一反馈类别时,获取预编码频域粒度参数K为Y;或者,
第五获取单元745,用于当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当类别Type为第一类别时,获取预编码频域粒度参数K为X;当类别Type为第二类别时,获取预编码频域粒度参数K为Y;或者,
第六获取单元746,用于当指示信息为反馈方式指示信息时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,获取预编码频域粒度参数K为X;当反馈方式为非周期性反馈时,获取预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;或者,
第七获取单元747,用于当指示信息为预设的粒度参数时,获取CSI-RS的预编码频域粒度参数/测量限制参数,其中,依据预设的粒度参数获取预编码频域粒度参数为K。
实施例七
本发明又一实施例提供的信道参数的配置装置,在基站侧,该装置包括:第一配置模块和第二配置模块,其中,
第一配置模块,用于配置指示信息;
第二配置模块,用于依据指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
本申请实施例提供的信道参数的获取装置,在基站侧,通过基站配置指示信息;基站依据指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获
得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,在指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、信道状态参考信号配置CSI-RS configuration指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型的情况下,配置模块94包括:第一配置单元、第二配置单元、第三配置单元、第四配置单元、第五配置单元和第六配置单元,其中,
第一配置单元,用于当指示信息为PMI disabling信令指示时,配置CSI-RS的预编码时域粒度参数/测量限制参数,其中,判断PMI disabling信令指示是否使能;在判断结果为是的情况下,配置预编码时域粒度参数K为X;在判断结果为否的情况下,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第二配置单元,用于当指示信息为反馈模式配置信令指示时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,配置预编码时域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,
第三配置单元,用于当指示信息为反馈类别Class指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,配置预编码时域粒度参数K为X;当反馈类别Class为第一反馈类别时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,
第四配置单元,用于当指示信息为信道状态参考信号配置CSI-RS configuration指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,配置一套CSI-RS configuration,CSI-RS configuration包含多个资源集合,一个波束对应一个资源集合,资源集合不同对应的波束不同,资源集合内包含多个端口,端口具有相同的预编码;在
基站确定CSI-RS configuration后,通过高层信令/物理层信令指示配置预编码频域粒度参数为K;或者,
第五配置单元,用于当指示信息为反馈方式指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,配置预编码时域粒度参数K为X;当反馈方式为非周期性反馈时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,
第六配置单元,用于当指示信息为天线端口数指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,当基站用于传输的天线端口数为M1时,配置预编码时域粒度参数K为X;当基站用于传输的天线端口数为M2时,配置预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;
第七配置单元,用于当指示信息为CSI的报告类型时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,依据时域粒度参数会随着CSI报告类型的周期性反馈而周期性的重置,通过CSI报告类型的最长周期来配置绑定状态的重置周期和/或子帧偏置。
实施例八
本发明再一实施例提供的信道参数的获取装置,在终端侧,该装置包括:接收模块和获取模块,其中,
接收模块,用于接收基站发送的指示信息;
获取模块,用于依据指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
本申请实施例提供的信道参数的获取装置,在终端侧,通过终端接收基站发送的指示信息;终端依据指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数,解决了由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
可选的,在指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、资
源Resource specific指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型的情况下,获取模块包括:
第一获取单元,用于当指示信息为PMI disabling信令指示时,获取CSI-RS的预编码时域粒度参数/测量限制参数,其中,判断PMI disabling信令指示是否使能;在判断结果为是的情况下,获取预编码时域粒度参数K为X;在判断结果为否的情况下,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第二获取单元,用于当指示信息为反馈模式配置信令指示时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测反馈模式获取信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,获取预编码时域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第三获取单元,用于当指示信息为反馈类别Class指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,获取预编码时域粒度参数K为X;当反馈类别Class为第一反馈类别时,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,
第四获取单元,用于当指示信息为资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,终端依据资源Resource specific指示信息确定基站配置的一套CSI-RS configuration中包含的资源集合数;终端依据接收到的高层/物理层指示信令获取信道状态参考信号CSI-RS的预编码时域粒度参数为K;或者,
第五获取单元,用于当指示信息为反馈方式指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,获取预编码时域粒度参数K为X;当反馈方式为非周期性反馈时,获取预编码时域粒度参数K为Y;其中,X<Y;或者,
第六获取单元,用于当指示信息为天线端口数指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,当终端确定基站用于传输的天线端口数为M1时,获取预编码时域粒度参数K为X;当终端确定基站用于传输的天线端口数为M2时,获取预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;
第七获取单元,用于当指示信息为CSI的报告类型时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,通过CSI报告类型的最长周期确定CSI-RS的绑定状态的周期性重置和/或绑定状态的子帧偏置。
实施例九
在本实施例中提供了一种信道参数的配置获取系统,图9是根据本发明实施例的信道参数的获取系统的结构图,如图9所示,该系统包括:基站92和终端94,基站92与终端94通信连接,其中,
基站92为实施例五或实施例七中任一所述的信道参数的配置装置;
终端94为实施例六或实施例八中任一所述的信道参数的获取装置。
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:上述模块均位于同一处理器中;或者,上述模块分别位于多个处理器中。
本发明的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以被设置为存储用于执行以下步骤的程序代码:
S1,基站接收指示信息;
S2,基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
可选地,在本实施例中,上述存储介质可以包括但不限于:U盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地,在本实施例中,处理器根据存储介质中已存储的程序代码执行基站依据指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测
量限制参数的步骤包括:方式一,当指示信息为高层频域粒度参数配置信令或物理层频域粒度参数信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据高层频域粒度参数配置信令或物理层频域粒度参数信令指示配置预编码频域粒度参数为K,预编码频域粒度参数K为1,且令K等于M,其中,M为当前带宽最大的无线承载RB数;方式二,当指示信息为PMI disabling信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:判断PMI disabling信令指示是否使能;在判断结果为是的情况下,配置预编码频域粒度参数K为X;在判断结果为否的情况下,配置预编码频域粒度参数K为Y;方式三,当指示信息为反馈模式配置信令指示时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测反馈模式配置信令指示中的反馈模式;当反馈模式为第一类预设模式集合时,配置预编码频域粒度参数K为X;当反馈模式为第二类预设模式集合或第三类预设模式集合时,配置预编码频域粒度参数K为Y;方式四,当指示信息为反馈类别Class指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测反馈类别Class指示信息中的反馈类别Class;当反馈类别Class为第二反馈类别时,配置预编码频域粒度参数K为X;当反馈类别Class为第一反馈类别时,配置预编码频域粒度参数K为Y;方式五,当指示信息为信道状态参考信号CSI-RS的类别Type指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当类别Type为第一类别时,配置预编码频域粒度参数K为X;当类别Type为第二类别时,配置预编码频域粒度参数K为Y;方式六,当指示信息为反馈方式指示信息时,配置CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测反馈方式指示信息中的反馈方式;当反馈方式为周期性反馈时,配置预编码频域粒度参数K为X;当反馈方式为非周期性反馈时,配置预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
可选地,本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例,本实施例在此不再赘述。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可
以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
本发明实施例提供了一种信道参数的配置获取方法、装置及系统,所述方法包括:基站配置指示信息;所述基站依据所述指示信息,配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数,可解决由于对CSI估计采用保守方法带来的噪声影响,导致不能获得最佳的估计性能的问题,进而达到了提升估计性能的效果。
Claims (31)
- 一种信道参数的配置方法,所述方法包括:基站配置指示信息;所述基站依据所述指示信息,配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
- 根据权利要求1所述的方法,其中,所述指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息和反馈方式指示信息。
- 根据权利要求2所述的方法,其中,所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数的步骤,包括:方式一,当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示配置所述预编码频域粒度参数为K;方式二,当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码频域粒度参数K为X;在判断结果为否的情况下,配置所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;方式三,当所述指示信息为所述反馈模式配置信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码频域粒度参数K为Y;方式四,当所述指示信息为所述反馈类别Class指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码频域粒度参数K为Y;方式五,当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,配置所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,配置所述预编码频域粒度参数K为Y;方式六,当所述指示信息为所述反馈方式指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,配置所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
- 根据权利要求3所述的方法,其中,所述预编码频域粒度参数K依据 所述当前带宽确定。
- 根据权利要求3所述的方法,其中,所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type包括以下至少之一:周期CSI-RS、非周期CSI-RS、预编码CSI-RS、非预编码CSI-RS、全带宽CSI-RS、部分带宽CSI-RS、聚合配置的CSI-RS和非聚合配置的CSI-RS。
- 根据权利要求3所述的方法,其中,所述预编码频域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
- 根据权利要求6所述的方法,所述方法还包括:所述基站通过所述高层频域粒度参数配置信令或物理层频域粒度参数信令指示配置所述CSI-RS的绑定状态,所述绑定状态包括:绑定或无绑定。
- 一种信道参数的获取方法,所述方法包括:终端接收基站发送的指示信息;所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
- 根据权利要求8所述的方法,其中,所述指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息、反馈方式指示信息和预设的粒度参数。
- 根据权利要求9所述的方法,其中,所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:方式一,当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示获取所述预编码频域粒度参数为K;方式二,当所述指示信息为所述PMI disabling信令指示时,获取所述 CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码频域粒度参数K为X;在判断结果为否的情况下,获取所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;方式三,当所述指示信息为所述反馈模式配置信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码频域粒度参数K为Y;方式四,当所述指示信息为所述反馈类别Class指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,获取所述预编码频域粒度参数K为Y;方式五,当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,获取所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,获取所述预编码频域粒度参数K为Y;方式六,当所述指示信息为所述反馈方式指示信息时,获取所述CSI-RS 的预编码频域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;方式七,当所述指示信息为所述预设的粒度参数时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数的步骤包括:依据所述预设的粒度参数获取所述预编码频域粒度参数为K。
- 根据权利要求10所述的方法,其中,所述预编码频域粒度参数K依据所述当前带宽确定。
- 根据权利要求10所述的方法,其中,所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type包括以下至少之一:周期CSI-RS、非周期CSI-RS、预编码CSI-RS、非预编码CSI-RS、全带宽CSI-RS、部分带宽CSI-RS、聚合配置的CSI-RS和非聚合配置的CSI-RS。
- 根据权利要求10所述的方法,其中,所述预编码频域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
- 根据权利要求13所述的方法,所述方法还包括:所述终端通过所述高层频域粒度参数配置信令或物理层频域粒度参数信令指示获取所述CSI-RS的绑定状态,所述绑定状态包括:绑定或无绑定。
- 一种信道参数的配置方法,所述方法包括:基站配置指示信息;所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
- 根据权利要求15所述的方法,其中,所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号配置CSI-RS configuration指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型。
- 根据权利要求16所述的方法,其中,所述基站依据所述指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:方式一,当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码时域粒度参数K为X;在判断结果为否的情况下,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;方式二,当所述指示信息为所述反馈模式配置信令指示时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;方式三,当所述指示信息为所述反馈类别Class指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;方式四,当所述指示信息为所述信道状态参考信号配置CSI-RSconfiguration指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:所述基站配置一套CSI-RS configuration,所述CSI-RS configuration包含多个资源集合,一个波束对应一个资源集合,所述资源集合不同对应的波束不同,所述资源集合内包含多个端口,所述端口具有相同的预编码;在所述基站确定CSI-RS configuration后,通过高层信令/物理层信令指示配置所述预编码时域粒度参数为K;方式五,当所述指示信息为所述反馈方式指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,配置所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;方式六,当所述指示信息为所述天线端口数指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:当所述基站用于传输的天线端口数为M1时,配置所述预编码时域粒度参数K为X;当所述基站用于传输的天线端口数为M2时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;方式七,当所述指示信息为CSI的报告类型时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:依据时域粒度参数会随着所述CSI的报告类型的周期性反馈而周期性的重置,所述基站通过所述CSI的报告类型的最长周期来配置绑定状态的重置周期和/或子帧偏置。
- 根据权利要求17所述的方法,其中,所述预编码时域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
- 一种信道参数的获取方法,所述方法包括:终端接收基站发送的指示信息;所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
- 根据权利要求19所述的方法,其中,所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、资源Resource specific指示信息、反馈方式指示信息、天线端口数指示信息和CSI报告类型。
- 根据权利要求20所述的方法,其中,所述终端依据所述指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:方式一,当所述指示信息为所述PMI disabling信令指示时,获取所述CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码时域粒度参数K为X;在判断结果为否的情况下,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;方式二,当所述指示信息为所述反馈模式配置信令指示时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈模式获取信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且 X<Y;方式三,当所述指示信息为所述反馈类别Class指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;方式四,当所述指示信息为所述资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:所述终端依据所述资源Resource specific指示信息确定基站配置的一套CSI-RS configuration中包含的资源集合数;所述终端依据接收到的高层/物理层指示信令获取信道状态参考信号CSI-RS的预编码时域粒度参数为K;方式五,当所述指示信息为所述反馈方式指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码时域粒度参数K为Y;其中,X<Y;方式六,当所述指示信息为所述天线端口数指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:当所述终端确定基站用于传输的天线端口数为M1时,获取所述预编码时域粒度参数K为X;当所述终端确定基站用于传输的天线端口数为M2时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;方式七,当所述指示信息为CSI的报告类型时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数的步骤包括:所述终端通过所述CSI的报告类型的最长周期确定CSI-RS的绑定状态的周期性重置和/或绑定状态的子帧偏置。
- 根据权利要求21所述的方法,其中,所述预编码时域粒度参数包括:CSI-RS绑定状态和/或CSI-RS绑定粒度。
- 一种信道参数的配置装置,所述装置包括:第一配置模块,用于配置指示信息;第二配置模块,用于依据所述指示信息,配置信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
- 根据权利要求23所述的装置,其中,在所述指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息和反馈方式指示信息的情况下,所述第二配置模块,包括:第一配置单元,用于当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数;其中,依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示配置所述预编码频域粒度参数为K;或者,第二配置单元,用于当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数;其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码频域粒度参数K为X;在判断结果为否的情况下,配置所述预编码频域粒度参数K为Y,其中,X与Y不相等,X与Y为整数,且X<Y;或者,第三配置单元,用于当所述指示信息为所述反馈模式配置信令指示时, 配置所述CSI-RS的预编码频域粒度参数/测量限制参数;其中,检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,配置所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码频域粒度参数K为Y;或者,第四配置单元,用于当所述指示信息为所述反馈类别Class指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数;其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码频域粒度参数K为Y;或者,第五配置单元,用于当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数;其中,检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,配置所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,配置所述预编码频域粒度参数K为Y;或者,第六配置单元,用于当所述指示信息为所述反馈方式指示信息时,配置所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;用于当所述反馈方式为周期性反馈时,配置所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y。
- 一种信道参数的获取装置,所述装置包括:接收模块,用于接收基站发送的指示信息;获取模块,用于依据所述指示信息获取信道状态参考信号CSI-RS的预编码频域粒度参数/测量限制参数。
- 根据权利要求25所述的装置,其中,在所述指示信息包括以下至少之一:高层频域粒度参数配置信令、物理层频域粒度参数信令指示、预编码 矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号CSI-RS的类别Type指示信息、反馈方式指示信息和预设的粒度参数的情况下,所述获取模块包括:第一获取单元,用于当所述指示信息为所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,依据所述高层频域粒度参数配置信令或所述物理层频域粒度参数信令指示获取所述预编码频域粒度参数为K;或者,第二获取单元,用于当所述指示信息为所述PMI disabling信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码频域粒度参数K为X;在判断结果为否的情况下,获取所述预编码频域粒度参数K为Y,其中,X与Y不相等,X与Y为整数,且X<Y;或者,第三获取单元,用于当所述指示信息为所述反馈模式配置信令指示时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码频域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码频域粒度参数K为Y;或者,第四获取单元,用于当所述指示信息为所述反馈类别Class指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码频域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,获取所述预编码频域粒度参数K为Y;或者,第五获取单元,用于当所述指示信息为所述信道状态参考信号CSI-RS的类别Type指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述信道状态参考信号CSI-RS的类别Type指示信息中的类别Type;当所述类别Type为第一类别时,获取所述预编码频域粒度参数K为X;当所述类别Type为第二类别时,获取所述预编码频域粒度参数K为Y;或者,第六获取单元,用于当所述指示信息为所述反馈方式指示信息时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码频域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码频域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,Y小于或等于M,M为当前带宽最大无线承载RB数,且X<Y;或者,第七获取单元,用于当所述指示信息为所述预设的粒度参数时,获取所述CSI-RS的预编码频域粒度参数/测量限制参数,其中,依据所述预设的粒度参数获取所述预编码频域粒度参数为K。
- 一种信道参数的配置装置,所述装置包括:第一配置模块,用于配置指示信息;第二配置模块,用于依据所述指示信息配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
- 根据权利要求27所述的装置,其中,在所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、所述信道状态参考信号配置CSI-RS configuration指示信息、反馈方式指示信息、天线端口数指示信息和CSI的报告类型的情况下,所述第二配置模块包括:第一配置单元,用于当所述指示信息为所述PMI disabling信令指示时,配置所述CSI-RS的预编码时域粒度参数/测量限制参数,其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,配置所述预编码时域粒度参数K为X;在判断结果为否的情况下,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,第二配置单元,用于当所述指示信息为所述反馈模式配置信令指示时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈模式配置信令指示中的反馈模式;当所述反馈模式为第一类预 设模式集合时,配置所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,第三配置单元,用于当所述指示信息为所述反馈类别Class指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,配置所述预编码时域粒度参数K为X;当所述反馈类别Class为第一反馈类别时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,第四配置单元,用于当所述指示信息为所述信道状态参考信号配置CSI-RS configuration指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,配置一套CSI-RS configuration,所述CSI-RS configuration包含多个资源集合,一个波束对应一个资源集合,所述资源集合不同对应的波束不同,所述资源集合内包含多个端口,所述端口具有相同的预编码;在确定CSI-RS configuration后,通过高层信令/物理层信令指示配置所述预编码时域粒度参数为K;或者,第五配置单元,用于当所述指示信息为所述反馈方式指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,配置所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,X大于或等于1,且X<Y;或者,第六配置单元,用于当所述指示信息为所述天线端口数指示信息时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,当所述基站用于传输的天线端口数为M1时,配置所述预编码时域粒度参数K为X;当所述基站用于传输的天线端口数为M2时,配置所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;第七配置单元,用于当所述指示信息为CSI的报告类型时,配置信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,依据时域粒度参数会随着所述CSI的报告类型的周期性反馈而周期性的重置,通过所述CSI的报告类型的最长周期来配置绑定状态的重置周期和/或子帧偏置。
- 一种信道参数的获取装置,所述装置包括:接收模块,用于接收基站发送的指示信息;获取模块,用于依据所述指示信息获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数。
- 根据权利要求29所述的装置,其中,在所述指示信息包括以下至少之一:预编码矩阵指示符非使能PMI disabling信令指示、反馈模式配置信令指示、反馈类别Class指示信息、资源Resource specific指示信息、反馈方式指示信息、天线端口数指示信息和CSI报告类型的情况下,所述获取模块包括:第一获取单元,用于当所述指示信息为所述PMI disabling信令指示时,获取所述CSI-RS的预编码时域粒度参数/测量限制参数,其中,判断所述PMI disabling信令指示是否使能;在判断结果为是的情况下,获取所述预编码时域粒度参数K为X;在判断结果为否的情况下,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,第二获取单元,用于当所述指示信息为所述反馈模式配置信令指示时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈模式获取信令指示中的反馈模式;当所述反馈模式为第一类预设模式集合时,获取所述预编码时域粒度参数K为X;当所述反馈模式为第二类预设模式集合或第三类预设模式集合时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,第三获取单元,用于当所述指示信息为所述反馈类别Class指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈类别Class指示信息中的反馈类别Class;当所述反馈类别Class为第二反馈类别时,获取所述预编码时域粒度参数K为X;当所述反馈类别 Class为第一反馈类别时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,且X<Y;或者,第四获取单元,用于当所述指示信息为所述资源Resource specific指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,依据所述资源Resource specific指示信息确定基站配置的一套CSI-RS configuration中包含的资源集合数;依据接收到的高层/物理层指示信令获取信道状态参考信号CSI-RS的预编码时域粒度参数为K;或者,第五获取单元,用于当所述指示信息为所述反馈方式指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,检测所述反馈方式指示信息中的反馈方式;当所述反馈方式为周期性反馈时,获取所述预编码时域粒度参数K为X;当所述反馈方式为非周期性反馈时,获取所述预编码时域粒度参数K为Y;其中,X<Y;或者,第六获取单元,用于当所述指示信息为所述天线端口数指示信息时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,当所述终端确定基站用于传输的天线端口数为M1时,获取所述预编码时域粒度参数K为X;当所述终端确定基站用于传输的天线端口数为M2时,获取所述预编码时域粒度参数K为Y;其中,X与Y不相等,X与Y为整数,当M1小于或等于M2时,X大于或等于Y;第七获取单元,用于当所述指示信息为CSI的报告类型时,获取信道状态参考信号CSI-RS的预编码时域粒度参数/测量限制参数,其中,通过所述CSI的报告类型的最长周期确定CSI-RS的绑定状态的周期性重置和/或绑定状态的子帧偏置。
- 一种信道参数的配置获取系统,所述系统包括:基站和终端,所述基站与终端通信连接,其中,所述基站为权利要求23或24所述的信道参数的获取装置;所述终端为权利要求25或26所述的信道参数的获取装置;或者,所述基站为权利要求27或28所述的信道参数的获取装置;所述终端为权利要求29或30所述的信道参数的获取装置。
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