CN103716818B

CN103716818B - The configuration of channel state information reference resource and determining method, base station and terminal

Info

Publication number: CN103716818B
Application number: CN201210370641.7A
Authority: CN
Inventors: 郭森宝; 孙云锋; 李儒岳; 张峻峰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2019-03-26
Anticipated expiration: 2032-09-28
Also published as: CN103716818A

Abstract

The present invention provides a kind of configuration method of channel state information reference resources, comprising: base station is that terminal configurating channel status information CSI measures the corresponding channel state information reference resources of process by terminal-specific high-level signaling；The CSI measurement process is one of CSI process, the combination of CSI process and subframe cluster, CSI process and combination of CSI report.The present invention also provides a kind of determination methods of channel state information reference resources.A kind of method of the aperiodic triggering terminal feedback in base station, when aperiodic triggering terminal is fed back, the minimum interval of aperiodic triggering is N milliseconds twice for base station.A kind of method that terminal carries out aperiodic triggering feedback, comprising: when terminal carries out aperiodic triggering feedback, the minimum interval that aperiodic triggering feedback executes twice is N milliseconds.The present invention also provides a kind of base station and terminals.

Description

Method for configuring and determining channel state system information reference resource, base station and terminal

Technical Field

The present invention relates to the field of communications, and in particular, to a method for configuring and determining channel state information reference resources, a base station, and a terminal.

Background

After undergoing several versions of R8/9/10, a Long Term Evolution (LTE) system continuously and accurately researches an R11 technology. Currently, some R8 products are beginning to be gradually commercialized, and R9 and R10 are in need of further product planning.

After the stages of R8 and R9, R10 adds many new characteristics on the basis of the former two, such as DMRS (Demodulation Reference Signal), CSI-RS (Channel State information Reference Signal), and other pilot characteristics, 8-antenna support and other transmission and feedback characteristics, and particularly, the elcic (enhanced Inter-Cell Interference cancellation) technology further considers the Interference avoidance technology between cells on the basis of considering R8/9 ICIC (Inter-Cell Interference cancellation). For a technology for solving the problem of inter-cell interference, cell interference avoidance under a homogeneous network is mainly considered in an initial stage of the R10 stage, wherein an elcic technology and a CoMP (Coordinated Multi-point) technology are mainly considered. CoMP is a concept in which multiple nodes cooperate to transmit data to one or more UEs in the same time-frequency resource or different time-frequency resources. The technology can reduce the interference between cells, improve the throughput rate of the edge of the cell and expand the cell coverage. However, since more scenes are introduced by the heterogeneous network in the later stage of the discussion, the complexity of the CoMP technology and the time limit discussed by R10 finally decide not to introduce additional CoMP standardized content in the stage of R10, but the design of the CSI-RS can be designed in consideration of the requirements of the CoMP part, so the CoMP technology is not discussed further after the 60bis conference.

The configuration information of the R10 CSI-RS mainly comprises non-zero power CSI-RS configuration signaling and zero power CSI-RS configuration signaling. The non-zero power CSI-RS configuration mainly considers notifying the terminal side of the time-frequency resource position of each non-zero power CSI-RS in one subframe by using a table index, as shown in tables 1 and 2, and notifying the terminal side of the antenna ports corresponding to the number of the time-frequency resources occupied by the non-zero power CSI-RS through antenna port number configuration and notifying the terminal side of the subframe receiving the CSI-RS by using subframe offset and a period index, as shown in table 3.

TABLE 1 resource mapping of CSI-RS in common cyclic prefix subframe configuration

And 2, resource mapping of the CSI-RS in the extended cyclic prefix subframe configuration.

TABLE 3 CSI-RS subframe configuration

The CSI-RS of zero power informs the terminal side of the resource elements that need rate matching using a bitmap (bitmap) sequence of 16 bits. The subframe offset and the period inform the terminal side of the subframe where the zero-power CSI-RS is located, as shown in table 3.

The purpose of the non-zero power CSI-RS is mainly to enable a terminal side to measure CSI and feed back the CSI to a base station side. The main purpose of the zero-power CSI-RS is to reduce interference of data service to the CSI-RS so as to improve the accuracy of measuring the CSI, the base station side notifies the resource position of the zero-power CSI-RS of the terminal side, and the terminal side assumes that the base station does not place a PDSCH or other reference signals or channels at the resource position of the zero-power CSI-RS.

R11 needs to consider the impact of CoMP on the standard, especially the configuration of interference measurement resources and the configuration of zero-power CSI-RS resources. Discussed in the latest 68bis conference, the interference measurement by using the zero-power CSI-RS resource can obtain a more accurate interference estimation performance, and meanwhile, the method is partially compatible with the R10 version terminal, so that the performance loss of the interference measurement resource on PDSCH puncturing caused by the configuration of the zero-power CSI-RS can be avoided. After a zero-power CSI-RS interference measurement mode is introduced in the stage R11, rate matching resources needing to be identified on the terminal side need to include the following three types:

1. a non-zero power CSI-RS resource. Mainly means that the base station side sends the CSI-RS according to a mode of 8 or 4 ports, the terminal side can only support 4 or 2 ports maximally, and then rate matching is carried out on other ports which cannot be identified. Or the base station side sends the CSI-RS, but the terminal side adopts a feedback mode of 1-0, 2-0 or 3-0, and only the zero-power CSI-RS is needed to be configured without configuring a CSI-RS port.

2. The zero-power CSI-RS resource is used for reducing interference of data service to CSI-RS measurement.

3. The zero-power CSI-RS resource is used for the terminal side to measure interference on the corresponding resource location.

The purpose of the zero-power CSI-RS configuration for point 1, 2 and R10 is the same, with point 3 being a new zero-power CSI-RS for interference measurement. Therefore, a new zero-power CSI-RS configuration needs to exist for R11, which includes at least two parts, one part is used for interference measurement and the other part is used for rate matching. For simplicity of writing, the Interference-measured zero-power CSI-RS is temporarily referred to as IMR (Interference Measurement Resource), and the Rate-matched zero-power CSI-RS is referred to as RMR (Rate Matching Resource).

For the conventional R8/9/10 system, since CRS (Cell Specific Reference Signal) is transmitted every downlink valid subframe, the terminal may perform channel measurement or interference measurement on a per subframe basis, each downlink valid subframe may be a CSI reference resource, for the system of R11, however, both CSI-RS and IMR are configured periodically, if each valid subframe is a CSI reference resource, it may lead to computational complexity of the terminal, especially for CoMP terminals, since such a terminal needs to calculate and feed back CSI of a plurality of CSI processes (one CSI Process corresponds to one NZP (Non Zero Power) CSI-RS configuration and one IMR configuration), if such a terminal is considered to support carrier aggregation of a maximum of 5 carriers, the measurement complexity for the terminal is relatively high. In order to reduce the implementation complexity of the terminal, some means are needed to optimize the measurement and calculation of the reference resources by the terminal.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a method for configuring channel state information reference resources, so that the terminal measurement complexity is reduced.

In order to solve the above problem, the present invention provides a method for configuring a channel state information reference resource, including:

a base station configures channel state information reference resources corresponding to a Channel State Information (CSI) measurement process for a terminal through a terminal special high-level signaling; the CSI measurement process is one of a CSI process, a combination of the CSI process and a subframe cluster, and a combination of the CSI process and a CSI report, and the CSI report is configured in a non-multipoint coordinated CoMP mode or a CSI report corresponding to a non-TM 10 in an R10 version or a former version.

Further, the method may further have the following characteristic that the base station configures, for the terminal through the terminal-specific high-level signaling, a channel state information reference resource corresponding to the CSI measurement process, including:

and the base station informs the measurement period and/or subframe offset of the CSI reference resource corresponding to the CSI measurement process of the terminal through the terminal-dedicated high-level signaling.

Further, the method may further have the following characteristic that the notifying, by the base station through the terminal-specific high-level signaling, of the measurement period and/or subframe offset of the CSI reference resource corresponding to the CSI measurement process of the terminal includes:

the base station independently configures the measurement period and/or subframe offset of each CSI measurement process; or,

and the base station configures the measurement period and/or subframe offset of all CSI measurement processes for the terminal through a set of terminal-specific high-level signaling indication.

Further, the method may further have the following characteristics that the base station configures the channel state information reference resource corresponding to the CSI measurement process for the terminal through the terminal-specific high-level signaling, including:

the base station implicitly informs the terminal of a channel state information reference resource corresponding to a CSI measurement process through at least one of the following signaling of the CSI measurement process configured by a terminal-specific high-level signaling:

period and/or subframe offset information of the non-zero power NZP CSI-RS;

period and/or subframe offset information of an interference measurement resource IMR;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

Further, the method may further have the following characteristic that the base station implicitly indicates, through configuration of a cycle and subframe offset information of the NZP CSI-RS and a cycle and subframe offset information of the IMR in the CSI measurement process by a terminal-specific high-level signaling, that the cycle of the channel state information reference resource corresponding to the CSI measurement process is a minimum cycle of the NZP CSI-RS and the IMR, and the subframe offset is a subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum cycle.

Further, the method may further have the following characteristic that the base station implicitly indicates that the cycle of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset corresponding to the minimum cycle configured NZP CSI-RS or IMR by configuring the cycle and subframe offset information of the NZP CSI-RS and the cycle and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling.

Further, the method may further have a characteristic that the base station implicitly indicates, through configuration of a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process by a terminal-specific high-level signaling, that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset with the same number as the maximum number in all configurations of the NZP CSI-RS and the IMR.

Further, the method may further have a characteristic that the base station implicitly indicates, through a terminal-specific high-level signaling, that a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process are configured, that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset with the same number as most subframes after configuring subframe offset modulo 5 for all the NZP CSI-RS and IMR.

Further, the method may further have a characteristic that the base station implicitly indicates, through configuration of a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process by a terminal-specific high-level signaling, that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset minimum value configured for all the NZP CSI-RS and IMR.

Further, the method may further have a characteristic that the base station implicitly indicates, through configuration of a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process by a terminal-specific high-level signaling, that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset configures a subframe offset modulo 5 is the smallest for all the NZP CSI-RS and IMR.

Further, the method may further have the following characteristic that the base station implicitly indicates that the period of the channel state information reference resource corresponding to the CSI measurement process is measurement subframe cluster configuration information 40ms, and the subframe offset is a collision subframe index of the IMR and the subframe offset within 40ms by configuring the period and the subframe offset information of the NZP CSI-RS, the period and the subframe offset information of the IMR, and the measurement subframe cluster configuration information in the CSI measurement process through a terminal-specific high-level signaling.

Further, the method may further have the following characteristic that the base station implicitly indicates that the period of the channel state information reference resource corresponding to the CSI measurement process is 40ms of measurement subframe cluster configuration information, and the subframe offset is the lowest index of a collision subframe of the IMR and the subframe offset within 40ms by configuring the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR, and the measurement subframe cluster configuration information in the CSI measurement process through a terminal-specific high-level signaling.

Further, the method may further have a characteristic that the base station implicitly indicates that multiple CSI measurement processes configured in the same trigger state use the same CSI reference resource configuration by configuring non-periodic feedback configuration information in the CSI measurement process through a terminal-specific high-level signaling.

The invention also provides a method for determining the channel state information reference resource, which comprises the following steps:

the terminal determines a channel state information reference resource corresponding to a CSI measurement process of the terminal by receiving a terminal-specific high-level signaling of a base station, wherein the CSI measurement process comprises a CSI process or a combination of the CSI process and a corresponding subframe cluster configuration.

Further, the method may further have a characteristic that the terminal obtains a measurement period and/or a subframe offset of a channel state information reference resource corresponding to the CSI measurement process by receiving the terminal-specific high-level signaling.

Further, the method may further have a feature that the terminal independently determines a period and/or a subframe offset of each CSI measurement process; or, the terminal determines the channel state information reference resources of all configured CSI measurement processes through a set of high-level signaling.

Further, the method may further have the following characteristic that the terminal determines the CSI reference resource corresponding to the CSI measurement process of the terminal by receiving at least one of the following signaling configured in the CSI measurement process by the terminal-specific higher layer signaling:

period and/or subframe offset information of the NZP CSI-RS;

period and/or subframe offset information of the IMR;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

Further, the method may further have the following characteristic that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is the minimum period of the NZP CSI-RS and the IMR and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured for the minimum period by receiving the period and the subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process configured by the terminal-specific higher layer signaling.

Further, the method may further have the following characteristic that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured at the minimum period by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific higher layer signaling.

Further, the method may further have a characteristic that the terminal determines that a period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and a subframe offset is a subframe offset with the same number as the maximum number in all NZP CSI-RS and IMR configurations by receiving a terminal-specific high-level signaling configuration period and subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process.

Further, the method may further have the following characteristic that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset with the maximum number of subframes modulo 5 after configuring the subframe offset for all the NZP CSI-RS and IMR by receiving the period and subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

Further, the method can also have the following characteristics that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the minimum value of the subframe offset configured for all the NZP CSI-RSs and the IMRs by receiving the period and subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

Further, the method can also have the following characteristics that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset with the minimum subframe offset modulo 5 in all the configuration of the NZP CSI-RS and the IMR by receiving the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

Further, the method may further have the following characteristic that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is measurement subframe cluster configuration information 40ms and the subframe offset is a collision subframe index of the IMR and the subframe offset within 40ms by receiving a terminal-specific high-level signaling configuration period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR, and the measurement subframe cluster configuration information in the CSI measurement process.

Further, the method may further have the following characteristic that the terminal determines that the period of the channel state information reference resource corresponding to the CSI measurement process is the measurement subframe cluster configuration information 40ms and the subframe offset is the lowest index of a collision subframe of the IMR and the subframe offset within 40ms by receiving the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR, and the measurement subframe cluster configuration information in the CSI measurement process configured by the terminal dedicated high-level signaling.

Further, the method may further have a characteristic that the terminal determines that the multiple CSI measurement processes in the same trigger state use the same CSI reference resource configuration by receiving the aperiodic feedback configuration information in the CSI measurement process configured by the terminal-specific high-level signaling.

the terminal determines that a channel state information reference resource corresponding to CSI fed back by a current subframe N is a resource on an N-k subframe or a resource which is closest to the N-k subframe and is prior to the N-k subframe according to the number of CSI measurement processes configured by a base station, or the capacity of a terminal for aggregating carriers and the number of the maximum CSI measurement processes which can support feedback, or the capacity of the terminal for aggregating carriers, the number of the maximum CSI measurement processes which can support feedback and the subframe type, wherein k is greater than 0.

Further, the method may further have the following characteristic that the determining, by the terminal, the CSI-corresponding CSI reference resource fed back by the current subframe N according to the number of CSI measurement processes configured by the base station includes:

when the number of the configured CSI measurement processes is 1 or 2, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on the (N-4) th subframe or a channel state information reference resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe;

when the number of the configured CSI measurement processes is 3, 4, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the resource on the N-k2 th subframe or the channel state information reference resource on the N-k2 th subframe which is closest to the N-k2 th subframe and is prior to the N-k2 th subframe;

when the number of the configured CSI measurement processes is more than 4, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on the N-k1 th subframe or a channel state information reference resource on the N-k1 th subframe which is closest to the N-k1 th subframe and is prior to the N-k1 th subframe;

or,

when the number of the configured CSI measurement processes is 1 or 2, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the (N-4) th subframe or the channel state information reference resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe;

when the number of the configured CSI measurement processes is 3, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k2 th subframe or the N-k2 th subframe which is closest to the N-k2 th subframe and is prior to the N-k2 th subframe;

when the number of the configured CSI measurement processes is greater than 4 or 5, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k1 th subframe or the N-k1 th subframe closest to the N-k1 th subframe and prior to the N-k1 th subframe, wherein k1 is greater than 4, and k2 is greater than 4.

Further, the method may further have the following characteristic that when the number of configured CSI measurement processes is 1 or 2, the CSI-corresponding CSI reference resource fed back by the terminal side from the current subframe N is a CSI reference resource on the nth-4 subframe or on a CSI reference resource on the nth-4 subframe prior to the nth-4 subframe closest to the nth-4 subframe;

when the number of the configured CSI measurement processes is more than 2, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k1 th subframe or the channel state information reference resource on the N-k1 th subframe which is closest to the N-k1 th subframe;

or,

when the number of the configured CSI measurement processes is 1, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the channel state information reference resource on the (N-4) th subframe or the channel state information reference resource on the (N-4) th subframe prior to the (N-4) th subframe and closest to the (N-4) th subframe;

when the number of the configured CSI measurement processes is greater than 1, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the channel state information reference resource on the N-k1 th subframe or the channel state information reference resource on the N-k1 th subframe which is closest to the N-k1 th subframe and is prior to the N-k1 th subframe; the k1> 4.

Further, the above method may further have the following features, wherein k1 is 6, and k2 is 5.

Further, the above method may further have a feature that k1 is 6.

Further, the method may further have the following characteristic that the terminal determines, according to the capability of the terminal to aggregate carriers and the number of maximum CSI measurement processes that can support feedback, a CSI reference resource corresponding to CSI fed back by the current subframe N includes:

when the carrier aggregation capability of the terminal is S and the number of the configured CSI measurement processes is less than or equal to L, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on the (N-4) th subframe or a resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe;

when the carrier aggregation capability of the terminal is S and the number of the configured CSI measurement processes is greater than L, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on an N-k1 th subframe or a resource on an N-k 1-prior subframe closest to an N-k1 th subframe, wherein k1 is greater than 4; and L is greater than or equal to S.

Further, the above method may have a feature that L ═ S, or, 2 ═ S, or, S + X, X > 0.

Further, the above method may have a feature that the value of k1 is 5 or 6.

Further, the method may further include that the CSI measurement process is one of a CSI process, a combination of a CSI process and a subframe cluster, and a combination of a CSI process and a CSI report, where the CSI report is an R10 version or a CSI report configured in a non-coordinated multipoint CoMP mode or a CSI report corresponding to a non-TM 10 version.

The invention also provides a method for the base station to trigger the feedback of the terminal in an aperiodic way, which comprises the following steps:

when the base station triggers the terminal feedback in the non-periodic manner, the minimum interval of two non-periodic triggers is N milliseconds, wherein N is greater than 0.

Further, the method may further include that the base station determines the minimum interval between the two aperiodic triggers according to the carrier aggregation capability of the terminal and/or the number of configured CSI measurement processes.

Further, the method may further include that the CSI measurement process is one of a CSI process, a combination of a CSI process and a subframe cluster, and a combination of a CSI process and a CSI report, where the CSI report is an R10 version or a CSI report configured in a previous version in a non-coordinated multipoint CoMP mode or a non-TM 10.

The invention also provides a method for the terminal to perform non-periodic trigger feedback, which comprises the following steps: when the terminal carries out non-periodic trigger feedback, the minimum interval of the two non-periodic trigger feedback executions is N milliseconds, wherein N is greater than 0.

Further, the method may further include that the terminal determines the minimum interval between the two aperiodic triggers according to a carrier aggregation capability of the terminal and/or a number of configured CSI measurement processes.

The present invention also provides a base station, comprising:

the configuration module is used for configuring channel state information reference resources corresponding to the CSI measurement process for the terminal through the terminal special high-level signaling; wherein the CSI measurement process comprises a CSI process, or a combination of a CSI process and a corresponding subframe cluster configuration.

Further, the base station may further have the following characteristic that the configuring, by the configuration module, the channel state information reference resource corresponding to the CSI measurement process for the terminal through the terminal-specific high-level signaling includes:

Further, the base station may further have the following feature that the notifying, by the configuration module, the measurement period and/or subframe offset of the CSI reference resource corresponding to the CSI measurement process of the terminal through the terminal-specific higher layer signaling includes:

the configuration module independently configures the measurement period and/or subframe offset of each CSI measurement process; or,

and the configuration module is used for configuring the measurement period and/or the subframe offset of all CSI measurement processes for the terminal through a set of terminal-specific high-level signaling indication.

period and/or subframe offset information of the non-zero power NZP CSI-RS;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

Further, the base station may further have a characteristic that the configuration module implicitly indicates, through a terminal-specific high-level signaling, that a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process are configured, that the period of the channel state information reference resource corresponding to the CSI measurement process is a minimum period of the NZP CSI-RS and the IMR, and the subframe offset is a subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period.

Further, the base station may further have a characteristic that the configuration module implicitly indicates, through a terminal-specific high-level signaling, that a period of the NZP CSI-RS and a period of the IMR and a subframe offset information of the NZP CSI-RS in the CSI measurement process are 5ms, and the subframe offset is a subframe offset corresponding to the minimum period configured NZP CSI-RS or the IMR.

Further, the base station may further have a characteristic that the configuration module implicitly indicates, through a terminal-specific high-level signaling, that a period of the NZP CSI-RS and a period of the IMR and a subframe offset information of the NZP CSI-RS in the CSI measurement process are configured, that a period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and that the subframe offset is a subframe offset with the largest number in all configurations of the NZP CSI-RS and the IMR.

Further, the base station may further have a characteristic that the configuration module implicitly indicates, through a terminal-specific high-level signaling, that a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process are configured, that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset in which the same number is the largest after subframe offset modulo 5 is configured for all the NZP CSI-RS and IMR.

Further, the base station may further have a characteristic that the configuration module implicitly indicates that a period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and a subframe offset is a subframe offset minimum value configured for all NZP CSI-RSs and IMRs by configuring, through a terminal-specific high-level signaling, a period and subframe offset information of an NZP CSI-RS and an IMR in the CSI measurement process.

Further, the base station may further have a characteristic that the configuration module implicitly indicates, through a terminal-specific high-level signaling, that a period of the NZP CSI-RS and a period of the IMR and a subframe offset information of the NZP CSI-RS in the CSI measurement process are 5ms, and the subframe offset is a subframe offset configured for all the NZP CSI-RS and the IMR, where the subframe offset is the minimum subframe offset modulo 5.

Further, the base station may further have a characteristic that the configuration module configures, through a terminal-specific high-level signaling, a period and subframe offset information of an NZP CSI-RS, a period and subframe offset information of an IMR, and measurement subframe cluster configuration information in the CSI measurement process to implicitly indicate that the period of a channel state information reference resource corresponding to the CSI measurement process is measurement subframe cluster configuration information 40ms, and the subframe offset is a collision subframe index of the IMR and the subframe offset within 40 ms.

Further, the base station may further have a characteristic that the configuration module configures, through a terminal-specific high-level signaling, a period and subframe offset information of an NZP CSI-RS, a period and subframe offset information of an IMR, and measurement subframe cluster configuration information in the CSI measurement process to implicitly indicate that the period of a channel state information reference resource corresponding to the CSI measurement process is measurement subframe cluster configuration information 40ms, and the subframe offset is a lowest index of a collision subframe of the IMR and the subframe offset within 40 ms.

Further, the base station may further have a characteristic that the configuration module configures non-periodic feedback configuration information in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that multiple CSI measurement processes configured in the same trigger state use the same CSI reference resource configuration.

The present invention also provides a terminal, comprising:

the configuration information acquisition module is used for determining a channel state information reference resource corresponding to a CSI measurement process of the terminal by receiving a terminal-specific high-level signaling of a base station, wherein the CSI measurement process comprises a CSI process or a combination of the CSI process and a corresponding subframe cluster configuration.

Further, the terminal may further have a feature that the configuration information obtaining module obtains a measurement period and/or a subframe offset of a CSI reference resource corresponding to the CSI measurement process by receiving the terminal-specific high-level signaling.

Further, the terminal may further have a feature that the configuration information obtaining module independently determines a period and/or a subframe offset of each CSI measurement process; or, determining the channel state information reference resources of all configured CSI measurement processes through a set of high-level signaling.

Further, the terminal may further have the following characteristic that the configuration information obtaining module determines the CSI reference resource corresponding to the CSI measurement process of the terminal by receiving at least one of the following signaling configured in the CSI measurement process by the terminal-specific higher layer signaling:

period and/or subframe offset information of the NZP CSI-RS;

period and/or subframe offset information of the IMR;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

Further, the terminal may further have a characteristic that the configuration information obtaining module determines that the period of the channel state information reference resource corresponding to the CSI measurement process is the minimum period of the NZP CSI-RS and the IMR and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured for the minimum period by receiving the period and the subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

Further, the terminal may further have a characteristic that the configuration information obtaining module determines that a cycle of a channel state information reference resource corresponding to the CSI measurement process is 5ms and a subframe offset is a subframe offset corresponding to the NZP CSI-RS or the IMR configured at a minimum cycle by receiving cycle and subframe offset information of the NZP CSI-RS and cycle and subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

Further, the terminal may further have a characteristic that the configuration information obtaining module configures, by receiving a terminal-specific high-level signaling, a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process, to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset with the largest number in all configurations of the NZP CSI-RS and the IMR.

Further, the terminal may further have a characteristic that the configuration information obtaining module configures, by receiving a terminal-specific high-level signaling, a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process, to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset with the maximum number of subframes configured by all of the NZP CSI-RS and the IMR after the subframe offset modulo 5.

Further, the terminal may further have a characteristic that the configuration information obtaining module configures, by receiving a terminal-specific high-level signaling, a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process, to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset minimum value configured for all the NZP CSI-RS and the IMR.

Further, the terminal may further have a characteristic that the configuration information obtaining module configures, by receiving a terminal-specific high-level signaling, a period and subframe offset information of the NZP CSI-RS and a period and subframe offset information of the IMR in the CSI measurement process, to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is a subframe offset configured for all the NZP CSI-RS and the IMR, where the subframe offset is the minimum subframe offset modulo 5.

Further, the terminal may further have a characteristic that the configuration information obtaining module configures, by receiving a terminal-specific high-level signaling, a period and subframe offset information of an NZP CSI-RS, a period and subframe offset information of an IMR, and measurement subframe cluster configuration information in a CSI measurement process, to determine that a period of a channel state information reference resource corresponding to the CSI measurement process is measurement subframe cluster configuration information 40ms, and a subframe offset is a collision subframe index of the IMR and the subframe offset within 40 ms.

Further, the terminal may further have a characteristic that the configuration information obtaining module configures, by receiving a terminal-specific high-level signaling, a period and subframe offset information of an NZP CSI-RS, a period and subframe offset information of an IMR, and measurement subframe cluster configuration information in a CSI measurement process, to determine that the period of a channel state information reference resource corresponding to the CSI measurement process is 40ms of measurement subframe cluster configuration information, and the subframe offset is a lowest index of a collision subframe of the IMR and the subframe offset within 40 ms.

Further, the terminal may further have a feature that the configuration information obtaining module configures the aperiodic feedback configuration information in the CSI measurement processes by receiving a terminal-specific high-level signaling, and determines that multiple CSI measurement processes in the same trigger state use the same CSI reference resource configuration.

The present invention also provides a terminal, comprising:

and the channel state information reference resource determining module is used for determining that the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on the N-k subframe or a resource which is closest to the N-k subframe and is prior to the N-k subframe according to the number of CSI measurement processes configured by the base station, or the capability of a terminal for aggregating carriers and the number of the maximum CSI measurement processes which can support feedback, or the capability of the terminal for aggregating carriers, the number of the maximum CSI measurement processes which can support feedback and the subframe type, wherein k is greater than 0.

Further, the terminal may further have the following characteristic that the determining module of the CSI reference resource determines, according to the number of CSI measurement processes configured by the base station, the CSI reference resource corresponding to the CSI fed back by the current subframe N, including:

or,

when the number of the configured CSI measurement processes is 1, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the channel state information reference resource on the (N-4) th subframe or the channel state information reference resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe;

Further, the terminal may further have a feature that k1 is 6 and k2 is 5.

Further, the terminal may further have a feature that k1 is 6.

Further, the terminal may further have the following characteristics that the determining module for determining the CSI reference resource corresponding to the CSI fed back by the current subframe N according to the capability of the terminal to aggregate carriers and the number of the maximum CSI measurement processes that can support feedback may include:

when the carrier aggregation capability of the terminal is S and the number of the configured CSI measurement processes is greater than L, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on an N-k1 th subframe or on an N-k1 th subframe which is closest to the N-k1 th subframe and is prior to the N-k1 th subframe, wherein k1 is greater than 4; and L is greater than or equal to S.

Further, the terminal may further have a feature that L ═ S, or 2 ═ S, or S + X, X > 0.

Further, the terminal may have a feature that the value of k1 is 5 or 6.

Further, the terminal may further have a characteristic that the CSI measurement process is one of a CSI process, a combination of a CSI process and a subframe cluster, and a combination of a CSI process and a CSI report, where the CSI report is an R10 version or a CSI report configured in a previous version in a non-coordinated multipoint CoMP mode or a non-TM 10.

The present invention also provides a base station, comprising:

and the triggering module is used for triggering the terminal feedback in an aperiodic way, and the minimum interval of two times of aperiodic triggering is N milliseconds, wherein N is greater than 0.

Further, the base station may further have a feature that the triggering module is further configured to determine a minimum interval between the two aperiodic triggers according to a carrier aggregation capability of the terminal and/or a number of configured CSI measurement processes.

Further, the base station may further have a characteristic that the CSI measurement process is one of a CSI process, a combination of a CSI process and a subframe cluster, and a combination of a CSI process and a CSI report, where the CSI report is an R10 version or a CSI report configured in a previous version in a non-coordinated multipoint CoMP mode or a non-TM 10.

The present invention also provides a terminal, comprising: and the feedback module is used for performing aperiodic triggering feedback, and the minimum interval of the two times of aperiodic triggering feedback execution is N milliseconds, wherein N is greater than 0.

Further, the terminal may further have the following feature that the feedback module is further configured to: and determining the minimum interval of the two aperiodic triggers according to the carrier aggregation capability of the terminal and/or the number of configured CSI measurement processes.

The invention provides a method for allocating channel state information reference resources, which can enable a base station side and a terminal side to adopt uniform channel state information reference resource allocation, enable the base station side to adjust the accuracy of the terminal feedback channel state information through high-level signaling and reduce the measurement complexity of the terminal.

Drawings

FIG. 1 is a block diagram of a base station according to an embodiment of the present invention;

FIG. 2 is a block diagram of a terminal according to an embodiment of the present invention;

FIG. 3 is a block diagram of a terminal according to another embodiment of the present invention;

FIG. 4 is a block diagram of a base station in accordance with another embodiment of the present invention;

fig. 5 is a block diagram of a terminal according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The maximum CSI measurement process number in this application refers to the sum of CSI measurement process numbers configured in all configured active carriers. The CSI measurement process may refer to one of a CSI process, a combination of a CSI process and a subframe cluster, and a combination of a CSI process and a CSI report. Wherein the CSI report refers to CSI report of R10 version or previous version configured in non-CoMP mode or non-TM 10.

The embodiment of the invention provides a method for configuring channel state information reference resources, which comprises the following steps:

and the base station configures a channel state information reference resource (CSI reference resource) corresponding to the CSI measurement process measured by the terminal through the terminal-specific high-level signaling.

The base station informs the terminal of the measurement period and/or subframe offset of the CSI reference resource of the CSI measurement process corresponding to the terminal through a terminal-specific high-level signaling.

Wherein the base station independently configures the measurement period and/or subframe offset of one or more CSI measurement processes. Each CSI measurement process is determined by respective signaling, and a plurality of signaling can be informed in one higher layer signaling.

Wherein, the base station uniformly configures the period and/or subframe offset of one or more CSI measurement processes. And indicating the channel state information reference resources of all configured CSI measurement processes through a set of high-level signaling.

The base station configures at least one of the following signaling in a CSI measurement process through terminal-specific high-level signaling:

period and/or subframe offset information of the NZP CSI-RS;

period and/or subframe offset information of the IMR;

measuring subframe cluster configuration information;

non-periodic feedback of configuration information;

the terminal side is implicitly informed of the channel state information reference resources.

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is the minimum period of the NZP CSI-RS and the IMR through configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period.

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset corresponding to the minimum period of the NZP CSI-RS and the IMR.

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RSs and the IMR.

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset with the maximum number of the same subframe offset after all the NZP CSI-RSs and the IMR are configured with subframe offset modulo 5.

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the minimum value of subframe offset configured for all the NZP CSI-RS and the IMR.

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset with the minimum subframe offset modulo 5 in all the NZP CSI-RS and IMR configurations.

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 40ms and the subframe offset is IMR and subframe cluster subframe collision subframe index within 40ms by configuring the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and measurement subframe cluster configuration information in a CSI measurement process through a terminal-specific high-level signaling.

Because the IMR is periodic, for example, the IMR is transmitted once in 5ms, and then the IMR may collide with the subframe offset configuration information within 4ms, for example, the IMR subframe offset is 0, the period is 5ms, and 0, 5, 10, 15, 20, 25, 30, 35 subframes are transmitted within 40ms, the subframe cluster configuration information is the subframe offset is 0, and is configured once every 8ms, and the occupied subframes are 0, 8, 16, 24, 30, 38, it can be seen that the IMR and the subframe cluster configuration collide at subframe 0 within 40ms, and then the reference resource subframe offset is 0 subframe.

The base station implicitly indicates that the period of a terminal channel state information reference resource is 40ms of measurement subframe cluster configuration information through configuring the period and subframe offset information of an NZP CSI-RS, the period and subframe offset information of an IMR and measurement subframe cluster configuration information in a CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the lowest index of a collision subframe of the IMR and the subframe offset within 40 ms.

The base station configures non-periodic feedback configuration information in the CSI measurement process through a terminal-specific high-level signaling, and a plurality of CSI measurement processes configured in the same trigger state adopt the same CSI reference resource configuration.

The embodiment of the invention provides a method for determining a channel state information reference resource, wherein a terminal configures the channel state information reference resource corresponding to a terminal measurement CSI measurement process by receiving a special high-level signaling configured at a base station side. The CSI measurement process comprises a CSI process or a CSI process and corresponding subframe cluster configuration.

The terminal obtains the measurement period and/or subframe offset of the CSI referrence resource of the corresponding CSI measurement process by receiving the terminal-specific high-level signaling.

Wherein the terminal independently receives and determines periodicity and/or subframe offset for one or more CSI measurement processes.

The terminal receives and determines the periodicity and/or subframe offset of one or more CSI measurement processes in a unified manner. And determining the channel state information reference resources of all configured CSI measurement processes through a set of high-level signaling.

The terminal configures at least one of the following signaling in a CSI measurement process by receiving a terminal-specific high-level signaling:

periodicity and/or subframe offset information of the NZP CSI-RS,

periodicity and/or subframe offset information of the IMR,

measuring sub-frame cluster configuration information of the sub-frame cluster,

the configuration information is fed back in an aperiodic manner,

to determine the terminal channel state information reference resources.

See the examples that follow for specific methods of determination.

In order to facilitate an understanding of the invention, the invention is further illustrated below with reference to specific examples.

Example 1

The base station determines a measurement period of csireferenceresource allocated to the terminal by information such as accuracy of channel state information that needs to be fed back by the terminal. And then the base station informs the terminal of the measurement period of the CSI reference resource of the corresponding CSI measurement process through a terminal-specific high-level signaling.

The terminal obtains the measurement period of the CSI reference resource of the corresponding CSI measurement process by receiving the terminal-specific high-level signaling, thereby determining the period of the CSI reference resource. And the terminal side determines the CSI reference resource by using the determined period of the CSIreference resource and the subframe offset of the lowest CSI Process, and measures the channel state information on the corresponding CSI reference resource.

And the base station side uniformly configures a CSI reference resource period and subframe offset signaling for a plurality of CSI measurement processes.

Example 2

The terminal obtains the measurement period of the CSI reference resource of the corresponding CSI measurement process by receiving the terminal-specific high-level signaling, thereby determining the period of the CSI reference resource. And the terminal side determines the CSI reference resource by using the determined period of the CSIreference resource, the IMR configuration corresponding to the lowest CSI Process and the lowest subframe index of the subframe cluster collision subframe, and measures the channel state information on the corresponding CSI reference resource.

Example 3

The base station determines the subframe offset configured to the terminal csireferenceresource by information such as the accuracy of the channel state information that needs to be fed back by the terminal. And then the base station informs the terminal of the measured subframe offset of the CSI reference resource of the corresponding CSI measurement process through a terminal-specific high-level signaling.

The terminal obtains the subframe offset of the CSI reference resource of the corresponding CSI measurement process by receiving the terminal-specific high-level signaling, so as to determine the subframe offset of the CSI reference resource. And the terminal side determines the CSIreference resource by using the determined CSIreference resource period as 5ms and the subframe offset obtained by receiving the terminal-specific high-level signaling, and measures the channel state information on the corresponding CSI reference resource.

Example 4

The base station determines a measurement period and a subframe offset configured to the terminal csireferenceresource by requiring the terminal to feed back information such as the accuracy of the channel state information. And then the base station informs the terminal of the measurement period and the subframe offset of the CSI reference resource of the CSI measurement process corresponding to the terminal through a terminal-specific high-level signaling.

The terminal obtains the measurement period and the subframe offset of the CSI reference resource of the corresponding CSI measurement process by receiving the terminal-specific high-level signaling, so that the period and the subframe offset of the CSI reference resource are determined. And the terminal side determines the CSI reference resource by using the determined period of the CSI reference resource and the subframe offset, and measures the channel state information on the corresponding CSI reference resource.

Example 5

And the base station side independently configures the periods and subframe offset signaling of the CSI reference resources for the CSI measurement processes.

Example 6

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is the minimum period of the NZP CSI-RS and the IMR and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period by configuring the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling.

The terminal determines that the period of the channel state information reference resource of the terminal is the minimum period of the NZP CSI-RS and the IMR and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period by receiving the period and the subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process configured by the terminal special high-level signaling.

Example 7

The base station configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the terminal channel state information reference resource is 5ms, and the subframe offset is the subframe offset corresponding to the minimum period of the two.

The terminal configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through receiving a terminal-dedicated high-level signaling, so that the period of a terminal channel state information reference resource is determined to be 5ms, and the subframe offset is the subframe offset corresponding to the minimum period of the terminal channel state information reference resource.

Example 8

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-dedicated high-level signaling, and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RSs and the IMR.

The terminal determines that the period of the channel state information reference resource of the terminal is 5ms by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-dedicated high-level signaling, and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RSs and the IMR.

Example 9

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset with the maximum number which is the same as the subframe offset modulo 5 and configured by all the NZP CSI-RS and the IMR.

The terminal determines that the period of a channel state information reference resource of the terminal is 5ms by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-dedicated high-level signaling, and the subframe offset is the subframe offset with the maximum number after all the NZP CSI-RSs and the IMR are configured with subframe offset modules of 5.

Example 10

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is a subframe offset minimum value configured for all the NZP CSI-RS and the IMR.

The terminal determines that the period of a channel state information reference resource of the terminal is 5ms by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-dedicated high-level signaling, and the subframe offset is the minimum value of subframe offset configured for all the NZP CSI-RS and the IMR.

Example 11

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset with the subframe offset modulo 5 minimum value configured for all the NZP CSI-RS and the IMR.

The terminal determines that the period of a channel state information reference resource of the terminal is 5ms by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-dedicated high-level signaling, and the subframe offset is the subframe offset of the subframe offset modulo 5 minimum value configured by all the NZP CSI-RS and the IMR.

Example 12

The base station implicitly indicates that the period of the channel state information reference resource of the terminal is 40ms of the configuration information of the measurement subframe cluster, and the subframe offset is the lowest index of the collision subframe of IMR and subframe offset within 40ms by configuring the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of IMR and the configuration information of the measurement subframe cluster in the CSI measurement process through a terminal-specific high-level signaling.

The terminal determines the period of the channel state information reference resource of the terminal as the configuration information of the measurement subframe cluster for 40ms and the subframe offset as the collision subframe index of the IMR and the subframe offset within 40ms by receiving the period and the subframe offset information of the NZP CSI-RS, the period and the subframe offset information of the IMR and the measurement subframe cluster configuration information in the CSI measurement process configured by the special high-level signaling of the terminal.

Example 13

The terminal determines the period of the channel state information reference resource of the terminal as the configuration information of the measurement subframe cluster for 40ms and the subframe offset as the lowest index of the collision subframe of the IMR and the subframe offset within 40ms by receiving the period and the subframe offset information of the NZP CSI-RS, the period and the subframe offset information of the IMR and the measurement subframe cluster configuration information in the CSI measurement process configured by the special high-level signaling of the terminal.

Example 14

The base station configures the non-periodic feedback configuration information in the CSI measurement process through the terminal-specific high-level signaling, and a plurality of CSI measurement processes configured in the same trigger state adopt the same CSI reference resource configuration.

The terminal configures the non-periodic feedback configuration information in the CSI measurement process by receiving the terminal-specific high-level signaling, and a plurality of CSI measurement processes configured in the same trigger state adopt the same CSI reference resource configuration.

Example 15

The base station implicitly indicates that the period of a channel state information reference resource of the terminal is 5ms by configuring the period and subframe offset information of an NZP CSI-RS, the period and subframe offset information of an IMR and measurement subframe cluster configuration information in a CSI measurement process through terminal-specific high-level signaling, and the subframe offset is the subframe offset corresponding to the lowest index of a subframe collision subframe configured by the IMR and the measurement subframe cluster.

The terminal determines that the period of a channel state information reference resource of the terminal is 5ms by receiving the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and measurement subframe cluster configuration information in the CSI measurement process through the special high-level signaling configuration of the terminal, and the subframe offset is the subframe offset corresponding to the lowest index of the subframe collision subframe configured by the IMR and the measurement subframe cluster.

Example 16

The base station implicitly indicates that the period of a terminal channel state information reference resource is 5ms by configuring the period and subframe offset information of an NZP CSI-RS, the period and subframe offset information of an IMR and measurement subframe cluster configuration information in a CSI measurement process through terminal-specific high-level signaling, and the subframe offset is the subframe offset corresponding to the lowest index of a first IMR corresponding to the lowest CSI process and a subframe collision subframe configured to the measurement subframe cluster. All CSI processes are configured according to this channel state information reference resource configuration information.

The terminal determines that the period of a channel state information reference resource of the terminal is 5ms by receiving the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and measurement subframe cluster configuration information in the CSI measurement process configured by a terminal-specific high-level signaling, and the subframe offset is the subframe offset corresponding to the lowest index of a collision subframe configured by the IMR and the measurement subframe cluster. And all CSI processes measure the channel state information reference resources according to the channel state information reference resource configuration information.

Example 17

And the terminal determines that the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the channel state information reference resource on the Nth-k subframe or the N-k nearest to the N-k and prior to the N-k subframe by receiving the number of the CSI measurement processes configured on the base station side.

When the number of the configured CSI measurement processes is 1 or 2, the CSI reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the CSI reference resource on the N-4 th subframe or the N-4 th subframe closest to the N-4 th subframe and prior to the N-4 th subframe.

When the number of the configured CSI measurement processes is 3, 4, the CSI reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the CSI reference resource on the N-k2 th subframe or the N-k2 subframe which is closest to the N-k2 subframe and is prior to the N-k2 subframe.

And when the number of the configured CSI measurement processes is more than 4, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k1 th subframe or the N-k1 subframe which is closest to the N-k1 subframe.

k1, k2 has one value of k 1-6 and k 2-5.

Example 18

When the number of the configured CSI measurement processes is 3, the CSI reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the CSI reference resource on the N-k2 th subframe or the N-k2 subframe which is closest to the N-k2 subframe.

When the number of the configured CSI measurement processes is larger than 4 or 5, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k1 th subframe or the N-k1 subframe which is closest to the N-k 1.

k1, k2 has one value of k 1-6 and k 2-5.

Example 19

The terminal determines that the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the channel state information reference resource on the (N-k) th subframe or on the (N-k) th subframe prior to the (N-k) th subframe closest to the (N-k) th subframe by receiving the number of CSI measurement processes configured on the base station side.

When the number of the configured CSI measurement processes is 1 or 2, the CSI reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the CSI reference resource on the (N-4) th subframe or the CSI reference resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe.

When the number of the configured CSI measurement processes is larger than 2, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k1 th subframe or the channel state information reference resource on the N-k1 th subframe which is closest to the N-k1 th subframe.

One value of k1 is k1 ═ 6.

Example 20

When the number of the configured CSI measurement processes is 1, the CSI reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the CSI reference resource on the N-4 th subframe or the CSI reference resource which is closest to the N-4 th subframe and is prior to the N-4 th subframe.

When the number of the configured CSI measurement processes is larger than 1, the channel state information reference resource corresponding to the CSI fed back by the current subframe N of the terminal side is the channel state information reference resource on the N-k1 th subframe or the channel state information reference resource on the N-k1 th subframe which is closest to the N-k1 th subframe.

One value of k1 is k1 ═ 6.

Example 21

The terminal determines that the channel state information reference resource corresponding to the CSI fed back by the current subframe N is the resource on the (N-k) th subframe or the resource which is closest to the (N-k) th subframe and is prior to the (N-k) th subframe according to the carrier aggregation capability of the terminal and the number of the maximum CSI measurement processes which can support the feedback, wherein k is greater than 0.

when the carrier aggregation capability of the terminal is S and the number of the configured CSI measurement processes is greater than L, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on an N-k1 th subframe or on an N-k1 th subframe which is closest to the N-k1 th subframe and is prior to the N-k1 th subframe, wherein k1 is greater than 4;

l is greater than or equal to S, for example, L ═ S, or, 2 × S, or, S + X, X > 0.

Sub-example 1:

when the carrier aggregation capability of the terminal is S, and when the number of the configured CSI processes is less than or equal to S, the channel state information reference resource corresponding to the CSI fed back according to the current subframe N is a resource on the (N-4) th subframe or a resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe.

And when the carrier aggregation capability of the terminal is S, and when the configured CSI process number is larger than S, the CSI reference resource corresponding to the CSI fed back according to the current subframe N is a resource on the (N-6) th subframe or a resource which is closest to the N-6 and is prior to the N-6 subframe.

Sub-example 2:

when the terminal aggregation carrier capability is S, and when the number of configured CSI measurement processes is less than or equal to 2 × S, the reference resource of the channel state information corresponding to the CSI fed back according to the current subframe N is a resource on the nth-4 subframe or a resource on the nth-4 subframe closest to the nth-4 subframe and prior to the nth-4 subframe.

When the terminal aggregation carrier capability is S, and then when the number of configured CSI measurement processes is greater than 2 × S, the reference resource of the channel state information corresponding to the CSI fed back according to the current subframe N is a resource on the nth-6 subframe or a resource on the nth-6 subframe that is closest to the nth-6 subframe and is prior to the nth-6 subframe.

Sub-example 3:

when the carrier aggregation capability of the terminal is S, and when the number of the configured CSI measurement processes is less than or equal to S +1, the channel state information reference resource corresponding to the CSI fed back according to the current subframe N is a resource on the (N-4) th subframe or a resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe.

When the carrier aggregation capability of the terminal is S, and the number of the configured CSI measurement processes is larger than S +1, the channel state information reference resource corresponding to the CSI fed back according to the current subframe N is a resource on the (N-6) th subframe or a resource which is closest to the (N-6) th subframe and is prior to the (N-6) th subframe.

Sub-example 4:

when the carrier aggregation capability of the terminal is S, and when the number of configured CSI measurement processes is less than or equal to S + X1, the reference resource of the channel state information corresponding to the CSI fed back by the current subframe N is a resource on the (N-4) th subframe or a resource on the (N-4) th subframe which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe, and X > 0.

When the carrier aggregation capability of the terminal is S, and the number of the configured CSI measurement processes is greater than S + X1, the reference resource of the channel state information corresponding to the CSI fed back by the current subframe N is a resource on the (N-6) th subframe or a resource which is closest to the (N-6) th subframe and is prior to the (N-6) th subframe, and X is greater than 0.

Sub-example 5:

when the terminal aggregation carrier capability is S, when the number of configured CSI measurement processes is less than or equal to S + X1, the CSI-corresponding CSI reference resource fed back according to the current subframe N is a resource on the nth-4 subframe or a resource closest to the nth-4 subframe and prior to the nth-4 subframe, where X > 0.

When the carrier aggregation capability of the terminal is S, when the number of configured CSI measurement processes is greater than S + X1 and less than or equal to S + X2, the channel state information reference resource corresponding to the CSI fed back according to the current subframe N is a resource on the (N-5) th subframe or a resource which is closest to the (N-5) th subframe and is prior to the (N-5) th subframe, and X1> 0.

When the carrier aggregation capability of the terminal is S, and when the number of configured CSI measurement processes is greater than S + X2, the reference resource of the channel state information corresponding to the CSI fed back by the current subframe N is a resource on the (N-6) th subframe or a resource which is closest to the (N-6) th subframe and is prior to the (N-6) th subframe, and X2> 0.

Example 22

The terminal determines that a channel state information reference resource corresponding to CSI fed back by a current subframe N is a resource on an N-k subframe or a resource which is closest to the N-k subframe and is prior to the N-k subframe according to the carrier aggregation capability of the terminal, the number of maximum CSI measurement processes capable of supporting feedback and the subframe type (subframe type 1FDD or subframe type 2TDD subframe), wherein k is greater than 0.

Sub-example 1:

when the subframe type is an FDD subframe type, and the capability of a terminal for aggregating carriers is S, when the number of configured CSI measurement processes is less than or equal to S + X, according to the channel state information reference resource corresponding to the CSI fed back by the current subframe N, the resource on the (N-4) th subframe or the resource on the N-4 th subframe prior to the N-4 nearest to the N-4 is adopted, and X is greater than 0. When the subframe type is an FDD subframe type, and the capability of a terminal for aggregating carriers is S, when the number of configured CSI measurement processes is greater than S + X, according to the channel state information reference resource corresponding to the CSI fed back by the current subframe N, the reference resource is the resource on the (N-6) th subframe or the resource on the (N-6) th subframe prior to the (N-6) th subframe, wherein X is greater than 0.

When the subframe type is a TDD subframe type, and the ability of a terminal to aggregate carriers is S, when the number of configured CSI measurement processes is less than or equal to S + Y, according to the channel state information reference resource corresponding to CSI fed back by the current subframe N, the reference resource is the resource on the (N-4) th subframe or the resource which is closest to the (N-4) th subframe and is prior to the (N-4) th subframe, and Y is greater than 0. When the subframe type is an FDD subframe type, and the capacity of a terminal for aggregating carriers is S, when the number of configured CSI measurement processes is greater than S + Y, the channel state information reference resource corresponding to CSI fed back according to the current subframe N is a resource on the (N-6) th subframe or a resource which is closest to the (N-6) th subframe and is prior to the (N-6) th subframe, and Y is greater than 0.

Example 23

When the base station triggers the terminal feedback in the non-periodic manner, the minimum interval of two non-periodic triggers is Nms, wherein N is greater than 0.

And when the terminal performs the aperiodic trigger feedback, the minimum time interval of the two aperiodic trigger feedback executions is set.

Example 24

And the base station determines the minimum interval of two aperiodic triggers to be Nms according to the carrier aggregation capability of the terminal and/or the number of the configured CSI measurement processes, wherein N is greater than 0.

The terminal determines the minimum interval of two aperiodic triggers according to the carrier aggregation capability of the terminal and/or the number of configured CSI measurement processes.

For example, when the number of configured CSI measurement processes is greater than the maximum CSI report or the number of CSI processes supported by the carrier aggregation capability of the terminal, a minimum interval of 2ms is used for feedback, otherwise, feedback is performed according to a minimum interval of 1 ms.

Sub-example 1:

the carrier aggregation capability of the terminal is 2 carriers, when the base station side is configured for 3 CSI measurement processes of the terminal, the minimum interval for triggering the non-periodic feedback by the base station side is 2ms, wherein N is greater than 0.

And the terminal determines the minimum interval of the two aperiodic triggers to be 2ms according to the carrier aggregation capability of the terminal and the number of the configured CSI measurement processes.

The carrier aggregation capability of the terminal is 2 carriers, and when the base station side is configured to the 2 CSI measurement processes of the terminal, the minimum interval of the non-periodic feedback triggered by the base station side is 1ms, wherein N is greater than 0.

The terminal determines the minimum interval of two aperiodic triggers to be 1ms according to the carrier aggregation capability of the terminal and the number of the configured CSI measurement processes.

An embodiment of the present invention further provides a base station, as shown in fig. 1, including:

An embodiment of the present invention further provides a terminal, as shown in fig. 2, including:

An embodiment of the present invention further provides a terminal, as shown in fig. 3, including:

An embodiment of the present invention further provides a base station, as shown in fig. 4, including:

Wherein the triggering module is further configured to determine a minimum interval between the two aperiodic triggers according to the carrier aggregation capability of the terminal and/or the number of configured CSI measurement processes.

An embodiment of the present invention further provides a terminal, as shown in fig. 5, including: and the feedback module is used for performing aperiodic triggering feedback, and the minimum interval of the two times of aperiodic triggering feedback execution is N milliseconds, wherein N is greater than 0.

Wherein the feedback module is further configured to: and determining the minimum interval of the two aperiodic triggers according to the carrier aggregation capability of the terminal and/or the number of configured CSI measurement processes.

For specific implementation of each module in the terminal and the base station, reference is made to the method embodiment, and repeated description of the same or similar parts is omitted here.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for configuring channel state information reference resources is characterized by comprising the following steps:

2. The method of claim 1, wherein the base station configuring, by the terminal-specific higher layer signaling, the CSI measurement process for the terminal with the CSI reference resource comprises:

3. The method of claim 2, wherein the base station informing, through the terminal-specific higher layer signaling, the measurement period and/or the subframe offset of the CSI reference resource corresponding to the CSI measurement process of the terminal comprises:

4. The method of claim 1, wherein the base station configuring the CSI measurement process corresponding to the CSI reference resource for the terminal through the terminal-specific higher layer signaling comprises:

period and/or subframe offset information of the non-zero power NZP CSI-RS;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

5. The method of claim 4,

and the base station implicitly indicates that the period of the channel state information reference resource corresponding to the CSI measurement process is the minimum period of the NZP CSI-RS and the IMR, and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period by configuring the period and the subframe offset of the NZP CSI-RS and the IMR in the CSI measurement process through a terminal-specific high-level signaling.

6. The method of claim 4,

and the base station implicitly indicates that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or IMR configured at the minimum period by configuring the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling.

7. The method of claim 4,

and the base station implicitly indicates that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RSs and IMRs through configuring the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process by a terminal-specific high-level signaling.

8. The method of claim 4,

and the base station implicitly indicates that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms by configuring the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling, and the subframe offset is the subframe offset with the maximum number which is the same as the subframe offset modulo 5 after all the NZP CSI-RSs and the IMR are configured with the subframe offset modulo 5.

9. The method of claim 4,

and the base station implicitly indicates that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the minimum value of subframe offset configured for all the NZP CSI-RS and IMR through configuring the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process by a terminal-specific high-level signaling.

10. The method of claim 4,

and the base station implicitly indicates that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset with the minimum subframe offset modulo 5 in all the configuration of the NZP CSI-RS and the IMR through configuring the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR by a terminal-specific high-level signaling.

11. The method of claim 4,

and the base station implicitly indicates that the period of the channel state information reference resource corresponding to the CSI measurement process is 40ms of measurement subframe cluster configuration information, and the subframe offset is a collision subframe index of the IMR and the subframe offset within 40ms by configuring the period and the subframe offset information of the NZP CSI-RS, the period and the subframe offset information of the IMR and the measurement subframe cluster configuration information in the CSI measurement process through a terminal-specific high-level signaling.

12. The method of claim 4,

and the base station implicitly indicates that the period of the channel state information reference resource corresponding to the CSI measurement process is 40ms of measurement subframe cluster configuration information, and the subframe offset is the lowest index of a collision subframe of IMR and subframe offset within 40ms by configuring the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of IMR and measurement subframe cluster configuration information in the CSI measurement process through a terminal-specific high-level signaling.

13. The method of claim 4,

and the base station configures the non-periodic feedback configuration information in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that a plurality of CSI measurement processes configured in the same trigger state adopt the same CSI reference resource configuration.

14. A method for determining a channel state information reference resource includes:

the terminal determines a channel state information reference resource corresponding to a Channel State Information (CSI) measurement process of the terminal by receiving a terminal-specific high-level signaling of a base station, wherein the CSI measurement process comprises a CSI process or a combination of the CSI process and a corresponding subframe cluster configuration.

15. The method of claim 14, wherein a terminal obtains a measurement period and/or a subframe offset of a channel state information reference resource corresponding to the CSI measurement process by receiving the terminal-specific higher layer signaling.

16. The method of claim 15,

the terminal independently determines the period and/or subframe offset of each CSI measurement process; or, the terminal determines the channel state information reference resources of all configured CSI measurement processes through a set of high-level signaling.

17. The method of claim 14, wherein the terminal determines the CSI reference resource corresponding to the CSI measurement process of the terminal by receiving at least one of the following signaling in the CSI measurement process configured by the terminal-specific higher layer signaling:

period and/or subframe offset information of the non-zero power NZP CSI-RS;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

18. The method of claim 17,

the terminal determines that the period of a channel state information reference resource corresponding to the CSI measurement process is the minimum period of the NZP CSI-RS and the IMR and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period by receiving the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

19. The method of claim 17,

the terminal determines that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured at the minimum period by receiving the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

20. The method of claim 17,

the terminal determines that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RSs and IMRs by receiving the period and the subframe offset information of the NZP CSI-RS and the IMR in the CSI measurement process configured by the terminal-dedicated high-level signaling.

21. The method of claim 17,

the terminal configures the period and subframe offset information of the NZP CSI-RS in the CSI measurement process and the period and subframe offset information of the IMR by receiving a terminal-specific high-level signaling, so as to determine that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the maximum number equal to the subframe offset modulo 5 after all the NZP CSI-RSs and the IMR are configured with the subframe offset.

22. The method of claim 17,

the terminal configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through receiving a terminal-dedicated high-level signaling, so that the period of a channel state information reference resource corresponding to the CSI measurement process is determined to be 5ms, and the subframe offset is the minimum value of subframe offsets configured for all the NZP CSI-RS and the IMR.

23. The method of claim 17,

the terminal determines that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset with the minimum subframe offset modulo 5 in all the configuration of the NZP CSI-RS and the IMR through receiving the period and the subframe offset information of the NZP CSI-RS and the period and the subframe offset information of the IMR in the CSI measurement process configured by a terminal-specific high-level signaling.

24. The method of claim 17,

the terminal determines the period of a channel state information reference resource corresponding to the CSI measurement process as measurement subframe cluster configuration information 40ms and the subframe offset as a collision subframe index of the IMR and the subframe offset within 40ms by receiving the period and the subframe offset information of the NZP CSI-RS, the period and the subframe offset information of the IMR and the measurement subframe cluster configuration information in the CSI measurement process configured by a terminal-specific high-level signaling.

25. The method of claim 17,

the terminal determines the period of a channel state information reference resource corresponding to the CSI measurement process as measurement subframe cluster configuration information 40ms and the subframe offset as the lowest index of a collision subframe of the IMR and the subframe offset within 40ms by receiving the period and the subframe offset information of the NZP CSI-RS, the period and the subframe offset information of the IMR and the measurement subframe cluster configuration information in the CSI measurement process configured by a terminal-specific high-level signaling.

26. The method of claim 17,

and the terminal determines that a plurality of CSI measurement processes in the same trigger state adopt the same CSI reference resource configuration by receiving the aperiodic feedback configuration information in the CSI measurement process configured by the terminal-specific high-level signaling.

27. A method for determining a channel state information reference resource includes:

the terminal determines that a reference resource of the channel state information corresponding to the CSI measurement process fed back by the current subframe N is a resource on the N-k subframe or a resource which is closest to the N-k subframe and is prior to the N-k subframe according to the number of CSI measurement processes configured by the base station, or according to the capability of the terminal for aggregating carriers and the number of the maximum CSI measurement processes capable of supporting feedback, or according to the capability of the terminal for aggregating carriers, the number of the maximum CSI measurement processes capable of supporting feedback and the subframe type, wherein k is greater than 0.

28. The method of claim 27, wherein the determining, by the terminal, the CSI-corresponding CSI reference resource fed back by the current subframe N according to the number of CSI measurement processes configured by the base station comprises:

when the number of the configured CSI measurement processes is larger than 4, the channel state information reference resource corresponding to the CSI fed back by the current subframe N is a resource on the N-k1 th subframe or a channel state information reference resource on the N-k1 th subframe which is closest to the N-k1 th subframe and is prior to the N-k1 th subframe.

29. The method of claim 27,

or,

30. The method of claim 28, wherein k 1-6 and k 2-5.

31. The method of claim 29, wherein k1 is 6.

32. The method of claim 27,

the terminal determines channel state information reference resources corresponding to the CSI fed back by the current subframe N according to the carrier aggregation capability of the terminal and the number of the maximum CSI measurement processes capable of supporting feedback, and the method comprises the following steps:

33. The method of claim 32,

the L ═ S, or, 2 × S, or, S + X, X > 0.

34. The method of claim 32, wherein the value of k1 is 5 or 6.

35. The method of any of claims 27 to 34, wherein the CSI measurement process is one of a CSI process, a combination of a CSI process and a subframe cluster, a combination of a CSI process and a CSI report, wherein the CSI report is a CSI report of version R10 or a previous version configured as a non-coordinated multipoint, CoMP, mode or a non-TM 10 counterpart.

36. A base station, comprising:

the configuration module is used for configuring channel state information reference resources corresponding to a Channel State Information (CSI) measurement process for the terminal through a terminal special high-level signaling; wherein the CSI measurement process comprises a CSI process, or a combination of a CSI process and a corresponding subframe cluster configuration.

37. The base station of claim 36, wherein the configuring module configures the CSI reference resource corresponding to the CSI measurement process for the terminal through terminal-specific higher layer signaling comprises:

38. The base station of claim 37, wherein the configuration module notifies, through the terminal-specific higher layer signaling, the measurement period and/or subframe offset of the CSI reference resource corresponding to the CSI measurement process of the terminal, includes:

39. The base station of claim 36, wherein the configuring module configures the CSI reference resource corresponding to the CSI measurement process for the terminal through terminal-specific higher layer signaling comprises:

the configuration module configures at least one of the following signaling of a CSI measurement process of the terminal through terminal-specific high-level signaling to implicitly notify the terminal of a channel state information reference resource corresponding to the CSI measurement process:

period and/or subframe offset information of the non-zero power NZP CSI-RS;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

40. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is the minimum period of the NZP CSI-RS and the IMR, and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period.

41. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured at the minimum period.

42. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RSs and the IMR.

43. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the maximum number after the subframe offset modulo 5 is configured for all the NZP CSI-RS and the IMR.

44. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the minimum value of subframe offset configured for all the NZP CSI-RS and the IMR.

45. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the minimum subframe offset modulo 5 in all the NZP CSI-RS and IMR configurations.

46. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and the configuration information of the measurement subframe cluster in the CSI measurement process through a terminal-specific high-level signaling, so as to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is the configuration information of the measurement subframe cluster for 40ms, and the subframe offset is a collision subframe index of the IMR and the subframe offset within 40 ms.

47. The base station of claim 39,

the configuration module configures the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and the configuration information of the measurement subframe cluster in the CSI measurement process through a terminal-specific high-level signaling, so as to implicitly indicate that the period of the channel state information reference resource corresponding to the CSI measurement process is the configuration information of the measurement subframe cluster for 40ms, and the subframe offset is the lowest index of a collision subframe of the IMR and the subframe offset within 40 ms.

48. The base station of claim 39,

the configuration module configures the non-periodic feedback configuration information in the CSI measurement process through a terminal-specific high-level signaling to implicitly indicate that a plurality of CSI measurement processes configured in the same trigger state adopt the same CSI reference resource configuration.

49. A terminal, comprising:

the configuration information acquisition module is used for determining a channel state information reference resource corresponding to a Channel State Information (CSI) measurement process of the terminal by receiving a terminal-specific high-level signaling of a base station, wherein the CSI measurement process comprises a CSI process or a combination of the CSI process and a corresponding subframe cluster configuration.

50. The terminal of claim 49, wherein the configuration information obtaining module obtains the measurement period and/or subframe offset of the CSI reference resource corresponding to the CSI measurement process by receiving the terminal-specific higher layer signaling.

51. The terminal of claim 50,

the configuration information acquisition module independently determines the period and/or subframe offset of each CSI measurement process; or, determining the channel state information reference resources of all configured CSI measurement processes through a set of high-level signaling.

52. The terminal of claim 49, wherein the configuration information obtaining module determines the CSI reference resource corresponding to the CSI measurement process of the terminal by receiving at least one of the following signaling in the CSI measurement process configured by the terminal-specific higher layer signaling:

period and/or subframe offset information of the non-zero power NZP CSI-RS;

measuring subframe cluster configuration information;

and feeding back the configuration information in an aperiodic way.

53. The terminal of claim 52,

the configuration information acquisition module determines that the period of a channel state information reference resource corresponding to the CSI measurement process is the minimum period of the NZP CSI-RS and the IMR and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or the IMR configured in the minimum period by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

54. The terminal of claim 52,

the configuration information acquisition module determines that the period of a channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the subframe offset corresponding to the NZP CSI-RS or IMR configured at the minimum period by receiving the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process configured by the terminal-specific high-level signaling.

55. The terminal of claim 52,

the configuration information acquisition module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a receiving terminal-dedicated high-level signaling to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the maximum number in the configuration of all the NZP CSI-RS and IMR.

56. The terminal of claim 52,

the configuration information acquisition module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a receiving terminal-dedicated high-level signaling to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the maximum number after the subframe offset module is configured by all the NZP CSI-RS and the IMR and the same number after the subframe offset module is 5.

57. The terminal of claim 52,

the configuration information acquisition module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a receiving terminal-dedicated high-level signaling to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms and the subframe offset is the minimum value of subframe offset in the configuration of all the NZP CSI-RS and the IMR.

58. The terminal of claim 52,

the configuration information acquisition module configures the period and subframe offset information of the NZP CSI-RS and the period and subframe offset information of the IMR in the CSI measurement process through a receiving terminal-dedicated high-level signaling to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 5ms, and the subframe offset is the subframe offset with the minimum subframe offset modulo 5 in all the NZP CSI-RS and IMR configurations.

59. The terminal of claim 52,

the configuration information acquisition module configures the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and the configuration information of the measurement subframe cluster in the CSI measurement process through a receiving terminal special high-level signaling, so as to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 40ms of the configuration information of the measurement subframe cluster, and the subframe offset is the collision subframe index of the IMR and the subframe offset within 40 ms.

60. The terminal of claim 52,

the configuration information acquisition module configures the period and subframe offset information of the NZP CSI-RS, the period and subframe offset information of the IMR and measurement subframe cluster configuration information in the CSI measurement process through a receiving terminal-dedicated high-level signaling, so as to determine that the period of the channel state information reference resource corresponding to the CSI measurement process is 40ms of measurement subframe cluster configuration information, and the subframe offset is the lowest index of a collision subframe of the IMR and the subframe offset within 40 ms.

61. The terminal of claim 52,

the configuration information acquisition module configures the aperiodic feedback configuration information in the CSI measurement process by receiving a terminal-specific high-level signaling, and determines that a plurality of CSI measurement processes in the same trigger state adopt the same CSI reference resource configuration.

62. A terminal, comprising:

and the channel state information reference resource determining module is used for determining the channel state information reference resource corresponding to the CSI measurement process fed back by the current subframe N to be the resource on the Nth-k subframe or the resource on the Nth-k subframe prior to the N-k subframe nearest to the Nth-k subframe according to the number of the CSI measurement processes configured by the base station, or according to the capability of the terminal for aggregating the carriers and the number of the maximum CSI measurement processes capable of supporting feedback, or according to the capability of the terminal for aggregating the carriers, the number of the maximum CSI measurement processes capable of supporting feedback and the subframe type, wherein k is greater than 0.

63. The terminal of claim 62, wherein the determining the CSI reference resource corresponding to the CSI fed back by the current subframe N by the CSI reference resource determining module according to the number of CSI measurement processes configured by the base station comprises:

64. The terminal of claim 62,

the channel state information reference resource determining module determines channel state information reference resources corresponding to the CSI fed back by the current subframe N according to the number of CSI measurement processes configured by the base station, and the determining module comprises:

or,

65. The terminal of claim 63, wherein k1 is 6 and k2 is 5.

66. The terminal of claim 64, wherein k1 is 6.

67. The terminal of claim 62,

the determining module of the channel state information reference resource determines the channel state information reference resource corresponding to the CSI fed back by the current subframe N according to the capability of the terminal to aggregate carriers and the number of the maximum CSI measurement processes capable of supporting feedback, and the determining module of the channel state information reference resource comprises:

68. The terminal of claim 67,

the L ═ S, or, 2 × S, or, S + X, X > 0.

69. The terminal of claim 67, wherein the value of k1 is 5 or 6.

70. The terminal of any one of claims 62 to 69, wherein the CSI measurement process is one of a CSI process, a combination of a CSI process and a subframe cluster, and a combination of a CSI process and a CSI report, wherein the CSI report is of version R10 or a previous version configured as a non-coordinated multipoint (CoMP) mode or a CSI report corresponding to non-TM 10.