CN104601286A

CN104601286A - Method, user device and system for reporting channel state information

Info

Publication number: CN104601286A
Application number: CN201510024151.5A
Authority: CN
Inventors: 张福强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-01-16
Filing date: 2015-01-16
Publication date: 2015-05-06
Anticipated expiration: 2035-01-16
Also published as: WO2016112867A1; CN104601286B

Abstract

The invention discloses a method, a user device and a system for reporting channel state information. The method for reporting the channel state information includes: receiving a plurality of reference signals configured by a network side device for a plurality of CSI processes; confirming an effective sub frame from an objective sub frame occupied by each reference signal according to a preset time interval and a preset rule, and setting a time interval between each two adjacent effective sub frames corresponding to each reference signal not smaller than the preset time interval; calculating CSI respectively corresponding to the plurality of the CSI processes according to the reference signals transmitted by the effective sub frames respectively corresponding to the plurality of the reference signals; feeding the CSI back to the network side device. By using the method, the user device and the system for reporting the channel state information, computation complexity of the channel state information can be reduced, and hardware cost is reduced.

Description

A kind of method of reporting status information of channel, subscriber equipment and system

Technical field

The present invention relates to communication technical field, particularly relate to a kind of method of reporting status information of channel, subscriber equipment and system.

Background technology

Channel condition information (Channel State Information, be called for short CSI) in Modern Communication System, play vital effect, it can provide important information for scheduling of resource, user's transformat is determined, multi-user matches even between multiple cell coordination.At third generation partner program (The 3rd GenerationPartnership Project, be called for short 3GPP) in Long Term Evolution (Long Term Evolution, be called for short LTE) in system, CSI generally includes channel quality instruction (Channel Quality Indicator, be called for short CQI), pre-coding matrix instruction (Precoding Matrix Indicator, be called for short PMI) and the information such as order instruction (Rank Indicator, abbreviation RI).For descending (namely net side apparatus is to user device transmissions data) system, the reference signal that subscriber equipment can send according to net side apparatus usually calculates CSI, and feeds back to net side apparatus.Wherein net side apparatus, i.e. network equipment can be base station.Wherein reference signal can comprise channel condition information pilot tone (CSI Reference Signal is called for short CSI-RS) and channel condition information interferometry (CSIInterference Measurement is called for short CSI-IM).

In the LTE system of 3GPP, by descending coordinated multipoint transmission (Coordinated Multiple PointsTransmission, be called for short CoMP) technology, the interference of cell edge during LTE system identical networking can be reduced, promote the spectrum efficiency of cell edge, strengthen coverage and reduce switching times.In descending CoMP system, multiple transmission node (Transmission Point is called for short TP) cooperation sends DSCH Downlink Shared Channel (Physical Downlink Shared Channel is called for short PDSCH) to subscriber equipment.Wherein, net side apparatus configures 4 CSI processes (CSI process) can at most a Serving cell, and configures corresponding reference signal to each CSI process.In addition, LTE system supports carrier aggregation (Carrier Aggregation, be called for short CA) technology from SGPP R10 release protocol, is polymerized by multiple carrier wave, uses as a wider frequency band.

If there is the CA of 2 carrier waves, the Serving cell that each carrier wave is corresponding is configured with 4 CSI process, subscriber equipment needs to calculate 8 CSI according to 8 CSI process, when 8 CSI-RS are identical with the cycle of 8 CSI-IM in corresponding CSI process, and skew is also identical, then 8 CSI-RS and 8 CSI-IM may occur in same subframe, namely need the CSI completing 8 CSI process in this subframe to calculate.The calculating number of CSI increases along with the increase of the CSI process number of configuration, and also increase along with the increase of the variable number of CA, computation complexity is higher.Further, for chip realizes, the calculating inherently more complicated of CSI, the raising of complexity will increase baseband chip area, and hardware cost is higher.

Summary of the invention

The invention provides a kind of method of reporting status information of channel, subscriber equipment and system, the computation complexity of channel condition information can be reduced, and reduce hardware cost.

First aspect present invention provides a kind of method of reporting status information of channel, comprising:

Receiving net side apparatus is multiple reference signals that multiple CSI Process configures respectively, described multiple reference signal and described multiple CSI Process one_to_one corresponding, wherein, each reference signal comprises CSI-RS and CSI-IM periodically sent, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in described CSI-RS and described CSI-IM;

According to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that described multiple reference signal takies separately, wherein, the time interval between corresponding with arbitrary reference signal two adjacent effective subframes is not less than the described default time interval;

Respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of described multiple CSI Process;

Described net side apparatus is given by each self-corresponding CSI feedback of described multiple CSI Process.

In the implementation that the first is possible, described preset rules comprises:

When in described reference signal, the cycle of CSI-RS with CSI-IM is identical, and when offseting identical, determine that the first target-subframe corresponding with described reference signal is the 1st effective subframe, and in target-subframe after (n-1)th effective subframe that described reference signal is corresponding, determining that time interval between described (n-1)th effective subframe is minimum and being not less than a target-subframe in the described default time interval is n-th effective subframe; Or

When in described reference signal, the cycle of CSI-RS with CSI-IM is different, or, in described reference signal the cycle of CSI-RS with CSI-IM identical but skew is different time, obtain the first target-subframe of transmitting CSI-RS corresponding with described reference signal, and the first target-subframe of transmitting CSI-IM corresponding with described reference signal;

If before the target-subframe of described first transmission CSI-RS is positioned at the target-subframe of described first transmission CSI-IM, then determine that the target-subframe of described first transmission CSI-IM is the 1st effective subframe;

If after the target-subframe of described first transmission CSI-RS is positioned at the target-subframe of described first transmission CSI-IM, then determine that the target-subframe of described first transmission CSI-RS is the 1st effective subframe;

In the target-subframe after (n-1)th effective subframe that described reference signal is corresponding, determining that time interval between described (n-1)th effective subframe is minimum and being not less than a target-subframe in the described default time interval is n-th effective subframe;

Wherein, n be greater than 1 positive integer.

In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second is possible, the corresponding target-subframe of described arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers;

Described respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of described multiple CSI Process and comprise:

When not transmitting CSI-IM in the corresponding current effective subframe of described reference signal, determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of described current effective subframe belongs to a CSI set or the 2nd CSI set, and according to the reference signal transmitted in described current effective subframe, calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers;

When transmitting CSI-IM in the corresponding current effective subframe of described reference signal, according to the reference signal transmitted in described current effective subframe that described reference signal is corresponding, calculate the CSI of the CSI set belonging to described current effective subframe.

In conjunction with the implementation that the second of the first or first aspect of first aspect, first aspect is possible, in the implementation that the third is possible, described respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, before calculating each self-corresponding CSI of described multiple CSI Process, also comprise:

Judge whether the quantity of current CSI to be calculated is greater than predetermined number threshold value;

When judged result is for being, in the CSI Process that described multiple CSI is corresponding, determine the target CS I Process meeting described predetermined number threshold value;

According to the reference signal transmitted in described target CS I Process separately corresponding effectively subframe, calculate corresponding CSI;

According to the reference signal transmitted in other CSI Process in the CSI Process that described multiple CSI is corresponding separately corresponding effectively subframe, the intended target subframe after described effective subframe calculates corresponding CSI;

When judged result is no, according to the reference signal transmitted in CSI Process corresponding to described CSI separately corresponding effectively subframe, calculate corresponding CSI.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, in the described CSI Process corresponding at described multiple CSI, determine that the target CS IProcess meeting described predetermined number threshold value comprises:

According to the priority that the process of each self-corresponding CSI Process of described multiple CSI is numbered, determine the target CS I Process meeting described predetermined number threshold value.

In conjunction with the third possible implementation of first aspect, in the 5th kind of possible implementation, in the described CSI Process corresponding at described multiple CSI, determine that the target CS IProcess meeting described predetermined number threshold value comprises:

According to the priority that the process of each self-corresponding CSI Process of described multiple CSI is numbered, and the priority of the Serving cell numbering of Serving cell corresponding to the identical CSI Process of priority of process numbering, determine the target CS I Process meeting described predetermined number threshold value.

In conjunction with the third of first aspect to any one the possible implementation in the 5th kind of first aspect, in the 6th kind of possible implementation, in the described CSI Process corresponding at described multiple CSI, determine that the target CS I Process meeting described predetermined number threshold value comprises:

When detecting that the CSI Process that described multiple CSI is corresponding comprises the CSI Process of the Serving cell of unicast pattern, determine that the priority of the CSI Process of the Serving cell of described unicast pattern is the highest.

In conjunction with the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation, arbitrary target-subframe that the CSI Process of the Serving cell of described unicast pattern is corresponding is effective subframe, and the reference signal transmitted in described arbitrary target-subframe is the specific reference signal in Serving cell of described unicast pattern.

In conjunction with the third of first aspect to any one the possible implementation in the 7th kind of first aspect, in the 8th kind of possible implementation, the reference signal that in the described CSI Process corresponding according to described multiple CSI, other CSI Process transmit in corresponding effectively subframe separately, intended target subframe after described effective subframe also comprises before calculating corresponding CSI:

Determine to be not more than described predetermined number threshold value in the quantity of described intended target subframe CSI to be calculated.

In conjunction with the first of first aspect or first aspect to any one the possible implementation in the 8th kind of first aspect, in the 9th kind of possible implementation, described respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of described multiple CSI Process and comprise:

When the reference signal transmitted in the corresponding effectively subframe of described reference signal comprises CSI-RS and CSI-IM, according to CSI-RS and CSI-IM transmitted in described effective subframe, calculate corresponding CSI;

When the reference signal transmitted in the corresponding effectively subframe of described reference signal comprises CSI-RS, according to the CSI-IM of transmission recently before the CSI-RS transmitted in described effective subframe and described effective subframe, calculate corresponding CSI;

When the reference signal transmitted in the corresponding effectively subframe of described reference signal comprises CSI-IM, according to the CSI-RS of transmission recently before the CSI-IM transmitted in described effective subframe and described effective subframe, calculate corresponding CSI.

Second aspect present invention provides a kind of subscriber equipment, comprising:

Receiving element, be multiple reference signals that multiple CSI Process configures respectively for receiving net side apparatus, described multiple reference signal and described multiple CSI Process one_to_one corresponding, wherein, each reference signal comprises CSI-RS and CSI-IM periodically sent, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in described CSI-RS and described CSI-IM;

Determining unit, the time interval of presetting for basis and preset rules, effective subframe is determined respectively from the target-subframe that described multiple reference signal takies separately, wherein, the time interval between corresponding with arbitrary reference signal two adjacent effective subframes is not less than the described default time interval;

Computing unit, for respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculates each self-corresponding CSI of described multiple CSI Process;

Feedback unit, for giving described net side apparatus by each self-corresponding CSI feedback of described multiple CSI Process.

If before the target-subframe of described first transmission CSI-RS is positioned at the target-subframe of described first transmission CSI-IM, then determine that the target-subframe of described first transmission CSI-IM is initial effective subframe;

If after the target-subframe of described first transmission CSI-RS is positioned at the target-subframe of described first transmission CSI-IM, then determine that the target-subframe of described first transmission CSI-RS is initial effective subframe;

Wherein, n be greater than 1 positive integer.

In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second is possible, the corresponding target-subframe of described arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers;

Described computing unit, for when not transmitting CSI-IM in the corresponding current effective subframe of described reference signal, determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of described current effective subframe belongs to a CSI set or the 2nd CSI set, and according to the reference signal transmitted in described current effective subframe, calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers;

Described computing unit, also for when transmitting CSI-IM in the corresponding current effective subframe of described reference signal, according to the reference signal transmitted in described current effective subframe that described reference signal is corresponding, calculate the CSI of the CSI set belonging to described current effective subframe.

In conjunction with the implementation that the second of the first or second aspect of second aspect, second aspect is possible, in the implementation that the third is possible, also comprise:

Judging unit, for described computing unit respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, before calculating each self-corresponding CSI of described multiple CSI Process, judge whether the quantity of current CSI to be calculated is greater than predetermined number threshold value;

Described determining unit, also for when described judging unit judged result is for being, determines the target CS I Process meeting described predetermined number threshold value in the CSI Process that described multiple CSI is corresponding;

Described computing unit, also for according to the reference signal transmitted in described target CS I Process separately corresponding effectively subframe, calculate corresponding CSI, and according to the reference signal transmitted in other CSI Process in CSI Process corresponding to described multiple CSI separately corresponding effectively subframe, the intended target subframe after described effective subframe calculates corresponding CSI;

Described computing unit, also for when described judging unit judged result is no, according to the reference signal transmitted in CSI Process corresponding to described CSI separately corresponding effectively subframe, calculates corresponding CSI.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described determining unit, for the priority of numbering according to the process of each self-corresponding CSI Process of described multiple CSI, determines the target CS I Process meeting described predetermined number threshold value.

In conjunction with the third possible implementation of second aspect, in the 5th kind of possible implementation, described determining unit, for the priority of numbering according to the process of each self-corresponding CSI Process of described multiple CSI, and the priority of the Serving cell numbering of Serving cell corresponding to the identical CSI Process of priority of process numbering, determine the target CS I Process meeting described predetermined number threshold value.

In conjunction with the third of second aspect to any one the possible implementation in the 5th kind of second aspect, in the 6th kind of possible implementation, described determining unit, during for detecting that the CSI Process that described multiple CSI is corresponding comprises the CSI Process of the Serving cell of unicast pattern, determine that the priority of the CSI Process of the Serving cell of described unicast pattern is the highest.

In conjunction with the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, arbitrary target-subframe that the CSI Process of the Serving cell of described unicast pattern is corresponding is effective subframe, and the reference signal transmitted in described arbitrary target-subframe is the specific reference signal in Serving cell of described unicast pattern.

In conjunction with the third of second aspect to any one the possible implementation in the 6th kind of second aspect, in the 8th kind of possible implementation, described determining unit, also for described computing unit according to the reference signal transmitted in other CSI Process described separately corresponding effectively subframe, given sub-frame after described effective subframe is determined to be not more than described predetermined number threshold value in the quantity of described intended target subframe CSI to be calculated before calculating corresponding CSI.

In conjunction with the first of second aspect or second aspect to any one the possible implementation in the 8th kind of second aspect, in the 9th kind of possible implementation, described computing unit, during for comprising CSI-RS and CSI-IM when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to CSI-RS and CSI-IM transmitted in described effective subframe, calculate corresponding CSI;

Described computing unit, time also for comprising CSI-RS when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to the CSI-IM of transmission recently before the CSI-RS transmitted in described effective subframe and described effective subframe, calculates corresponding CSI;

Described computing unit, time also for comprising CSI-IM when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to the CSI-RS of transmission recently before the CSI-IM transmitted in described effective subframe and described effective subframe, calculates corresponding CSI.

Third aspect present invention provides a kind of communication system, comprises net side apparatus and subscriber equipment, subscriber equipment if the first of second aspect or second aspect is to as described in the arbitrary possible implementation in the 9th kind, wherein:

Described net side apparatus, for being sent as multiple reference signals that multiple CSI Process configures respectively to described subscriber equipment, calculating according to described multiple reference signal to make described subscriber equipment and feeds back each self-corresponding CSI of described multiple CSIProcess.

Implement the embodiment of the present invention, it is multiple reference signals that multiple CSI Process configures respectively that subscriber equipment receives net side apparatus, according to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that multiple reference signal takies separately, respectively according to the reference signal transmitted in multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of multiple CSI Process, by each for multiple CSI Process self-corresponding CSI feedback to net side apparatus, the computation complexity of channel condition information can be reduced, and reduce hardware cost.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the schematic flow sheet of the method for a kind of reporting status information of channel provided in first embodiment of the invention;

Fig. 2 is the structural representation of a kind of resource lattice provided in first embodiment of the invention;

Fig. 3 is the schematic flow sheet of the method for a kind of reporting status information of channel provided in second embodiment of the invention;

Fig. 4 is the schematic flow sheet of the method for a kind of reporting status information of channel provided in third embodiment of the invention;

Fig. 5 is the structural representation of a kind of resource lattice provided in second embodiment of the invention;

Fig. 6 is the structural representation of a kind of subscriber equipment provided in first embodiment of the invention;

Fig. 7 is the structural representation of a kind of subscriber equipment provided in second embodiment of the invention;

Fig. 8 is the structural representation of a kind of subscriber equipment provided in the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Should understand, the technical scheme of the embodiment of the present invention can be applied to various communication system, such as: global system for mobile telecommunications (Global System of Mobile communication, be called for short GSM) system, code division multiple access (Code Division Multiple Access, be called for short CDMA) system, Wideband Code Division Multiple Access (WCDMA) (WidebandCode Division Multiple Access, be called for short WCDMA) system, GPRS (GeneralPacket Radio Service, be called for short GPRS), Long Term Evolution (Long Term Evolution, be called for short LTE) system, LTE Frequency Division Duplexing (FDD) (Frequency Division Duplex, be called for short FDD) system, LTE time division duplex (Time Division Duplex, be called for short TDD), universal mobile telecommunications system (Universal MobileTelecommunication System, be called for short UMTS) or global interconnection inserting of microwave (WorldwideInteroperability for Microwave Access, be called for short WiMAX) communication system etc.

Will also be understood that, in embodiments of the present invention, subscriber equipment (User Equipment, be called for short UE) terminal (Terminal) can be referred to as, travelling carriage (Mobile Station, be called for short MS) or mobile terminal (MobileTerminal) etc., this subscriber equipment can through wireless access network (Radio Access Network, be called for short RAN) communicate with one or more core net, such as, subscriber equipment can be mobile phone (or being called " honeycomb " phone) or the computer etc. with mobile terminal, such as, subscriber equipment can also be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network switched voice and/or data.

In embodiments of the present invention, net side apparatus can be base station (the BaseTransceiver Station in GSM or CDMA, be called for short BTS), also can be the base station (NodeB is called for short NB) in WCDMA, can also be evolved base station (the Evolutional Node B in LTE, be called for short eNB), the present invention does not limit, but for convenience of description, following embodiment will be described for eNB.

3GPP introduces descending coordinated multipoint transmission (Coordinate Multi-PointTransmission in LTE R11 agreement, be called for short CoMP), when descending CoMP system can reduce LTE identical networking cell edge interference, promote cell edge spectrum efficiency, strengthen coverage and reduce switching times etc.During descending CoMP, multiple transmission node (Transmission Point, be called for short TP) cooperate to UE transmission DSCH Downlink Shared Channel (Physical Downlink Shared Channel, be called for short PDSCH), best down collaboration transmission plan can be selected to make net side apparatus, UE needs channel condition information (the Channel State Information reporting multiple transmission plan, be called for short CSI), LTE R11 protocol definition channel condition information process (CSI Process) for this reason, the CSI of each transmission plan reports a corresponding CSI Process.Net side apparatus can give the configuration of Serving cell maximum 4 CSI Process, and namely subscriber equipment can feed back at most the CSI information of 4 kinds of transmission plans.

In addition, LTE system supports carrier aggregation (Carrier Aggregation, be called for short CA) from R10 agreement, is polymerized by multiple carrier wave, uses as a wider frequency band.Such as, in the case of a ca, if each Serving cell requires to support COMP, due to maximum all configurable 4 CSIProcess in each Serving cell, when CA is carried out in 2 Serving cells, maximum possible has 8 CSI Processes, and namely subscriber equipment can feed back at most the CSI information of 8 kinds of transmission plans.

For ease of understanding, for LTE system, introduce frame structure.In LTE system, downstream transmission is organized into radio frames (radio frame), each wireless frame length 10 milliseconds, and each radio frames comprises the subframe (subframe) of 10 1 millisecond long, and subframe label is from 0 to 9.Net side apparatus is configured with multiple reference signal to multiple CSI Process respectively, multiple reference signal and multiple CSI Process one_to_one corresponding, reference signal can comprise channel condition information pilot tone (CSI Reference Signal, be called for short CSI-RS) and channel condition information interferometry (CSI Interference Measurement is called for short CSI-IM).In a reference signal, the cycle of CSI-RS and CSI-IM can be 5ms, 10ms, 20ms, 40ms or 80ms, the skew of CSI-RS with CSI-IM can be identical, also can not be identical, wherein the skew of CSI-RS refers to: in the time interval between the target-subframe of first transmission CSI-RS and subframe 0, the skew of CSI-IM refers to: the time interval between the target-subframe of first transmission CSI-IM and subframe 0.Subscriber equipment can obtain channel estimation results H according to the CSI-RS transmitted in each self-corresponding target-subframe of multiple reference signal, interfere information P is obtained according to the CSI-IM transmitted in each self-corresponding target-subframe of multiple reference signal, and according to H and P, calculate each self-corresponding CSI of multiple CSI Process.

Refer to Fig. 1, Fig. 1 is the schematic flow sheet of the method for a kind of reporting status information of channel provided in first embodiment of the invention, and the method for the reporting status information of channel as shown in the figure in the embodiment of the present invention at least can comprise:

S101, receiving net side apparatus is multiple reference signals that multiple channel condition information process configures respectively.

It is multiple reference signals that multiple CSI Process configures respectively that subscriber equipment can receive net side apparatus.Wherein multiple reference signal and multiple CSI Process one_to_one corresponding, each reference signal can comprise CSI-RS and CSI-IM periodically sent, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in CSI-RS and CSI-IM.

Concrete, net side apparatus configures multiple CSI Process can to a Serving cell, and then configures a reference signal to each CSI Process.Such as, net side apparatus can according to the multiple CSIProcess preset each self-corresponding reference signal configuration information, subframe shared when determining reference signal transmission, send reference signal by above-mentioned period of sub-frame, it is multiple reference signals that multiple CSI Process configures that the subscriber equipment in this Serving cell can receive net side apparatus.After subscriber equipment receives each self-corresponding reference signal of multiple CSI Process, according to each self-corresponding reference signal configuration information of multiple CSI Process, can determine that the subframe that reference signal takies when transmitting is target-subframe.Wherein, reference signal configuration information can comprise the subframe that cycle of reference signal and skew or reference signal take when transmitting.Reference signal configuration information that in the reference signal configuration information that in subscriber equipment, CSI Process is corresponding and net side apparatus, this CSI Process is corresponding is through consults in advance, and the reference signal configuration information that namely in subscriber equipment, CSI Process the is corresponding reference signal configuration information corresponding with this CSI Process in net side apparatus is identical.

For the structural representation of the resource lattice shown in Fig. 2, when the reference signal configuration information that CSI Process is corresponding is configuration 0, the cycle of CSI-RS and CSI-IM is 5ms, skew is 1ms, namely net side apparatus sends CSI-RS and CSI-IM every 5ms, net side apparatus by and the target-subframe of subframe 0 interval 1ms transmit CSI-RS and CSI-IM, and the target-subframe of subframe 0 interval 1ms i.e. subframe 1, then subscriber equipment can according to the cycle of reference signal and skew, determine by subframe 1, 6, 11 and 16 all transmit CSI-RS and CSI-IM, above-mentioned subframe can be set as target-subframe by subscriber equipment.Optionally, the subframe that the reference signal configuration information that CSI Process is corresponding can indicate reference signal to take is subframe 1,6,11 and 16, then above-mentioned subframe can be set as target-subframe by subscriber equipment.

When the reference signal configuration information that CSI Process is corresponding is configuration 1, the cycle of CSI-RS and CSI-IM is 5ms, the skew of CSI-RS is 2ms, the skew of CSI-IM is 4ms, then subscriber equipment can be determined to transmit reference signal by subframe 2,4,7,9,12,14,17 and 19, and above-mentioned subframe can be set as target-subframe by subscriber equipment.Optionally, the subframe that the reference signal configuration information that CSI Process is corresponding can indicate reference signal to take is subframe 2,4,7,9,12,14,17 and 19, then above-mentioned subframe can be set as target-subframe by subscriber equipment.

When the reference signal configuration information that CSI Process is corresponding is configuration 2, the cycle of CSI-RS is 5ms, the cycle of CSI-IM is 10ms, the skew of CSI-RS is 2ms, the skew of CSI-IM is 0ms, then subscriber equipment can be determined to transmit reference signal by subframe 0,2,7,10,12 and 17, and above-mentioned subframe can be set as target-subframe by subscriber equipment.Optionally, the subframe that the reference signal configuration information that CSI Process is corresponding can indicate reference signal to take is subframe 0,2,7,10,12 and 17, then above-mentioned subframe can be set as target-subframe by subscriber equipment.

S102, according to the time interval of presetting and preset rules, determines effective subframe respectively from the target-subframe that multiple reference signal takies separately.

Subscriber equipment can according to the time interval of presetting, and from the target-subframe that multiple reference signal takies separately, determine effective subframe respectively, wherein, the time interval between two corresponding with arbitrary reference signal adjacent effective subframes is not less than the default time interval.

Preferably, the time interval of presetting can be 5ms.Wherein this time interval of presetting is reliability and the optimum value of complexity after balance of CSI.The cycle of CSI-RS and CSI-IM can be 5ms, 10ms, 20ms, 40ms and 80ms, then the most short period of CSI-RS and CSI-IM is 5ms.When the time interval of presetting is less than 5ms, the reference signal transmitted in effective subframe comprises the reference signal in each cycle, and the reliability of CSI is higher, but calculative CSI is still more, effectively can not solve the computation complexity of CSI.When preset interval greater than 5ms time, calculative CSI significantly reduces, but the reference signal effectively transmitted in subframe only may comprise the reference signal of partial periodicity, the reliability of CSI is lower, the time interval of then presetting is 5ms, is reliability and the optimum value of complexity after balance of CSI.It is pointed out that the time interval of presetting in the embodiment of the present invention is including but not limited to 5ms, such as, in following communication system, the most short period of CSI-RS and CSI-IM is 10ms, then subscriber equipment needs reliability and the complexity of weighing CSI, to determine the time interval.

In an alternative embodiment, preset rules can be:

(1) identical when the cycle of CSI-RS with CSI-IM in reference signal, and when offseting identical, subscriber equipment can determine that the first target-subframe corresponding with reference signal is the 1st effective subframe, and in target-subframe after (n-1)th effective subframe that reference signal is corresponding, determining that time interval between (n-1)th effective subframe is minimum and being not less than a target-subframe in the default time interval is n-th effective subframe.The skew of CSI-RS with CSI-IM is identical, and namely the first time interval of transmitting between the target-subframe of CSI-RS and subframe 0, identical with the first time interval of transmitting between the target-subframe of CSI-IM and subframe 0.Wherein, n be greater than 1 positive integer.

For the structural representation of the resource lattice shown in Fig. 2, when the reference signal configuration information that CSI Process is corresponding is configuration 0, the cycle of CSI-RS and CSI-IM is 5ms, the skew of CSI-RS and CSI-IM is 1ms, then subscriber equipment can determine that the cycle of CSI-RS with CSI-IM in the reference signal that CSI Process is corresponding is identical, and the skew of CSI-RS with CSI-IM is identical in this reference signal, namely subframe 1,6,11,16 all in transmit CSI-RS and CSI-IM, subframe 1,6,11 and 16 is target-subframe.Subscriber equipment can determine that subframe 1 is the 1st effective subframe, the time interval of wherein presetting is 5ms, subscriber equipment can in the target-subframe after the 1st effective subframe, it is subframe 6,11 and 16 that the time interval determining between the 1st effective subframe is not less than the target-subframe in the default time interval, and then in subframe 6,11 and 16, determine that time interval between the 1st effective subframe the shortest target-subframe is subframe 6, namely subframe 6 is the 2nd effective subframe.In like manner, subscriber equipment can in the target-subframe after the 2nd effective subframe, it is subframe 11 and 16 that the time interval determining between the 2nd effective subframe is not less than the target-subframe in the default time interval, and then in subframe 11 and 16, determine that time interval between the 2nd effective subframe the shortest target-subframe is subframe 11, namely subframe 11 is the 3rd effective subframe.In like manner, subscriber equipment can in the target-subframe after the 3rd effective subframe, it is subframe 16 that the time interval determining between the 3rd effective subframe is not less than the target-subframe in the default time interval, then subscriber equipment can determine that subframe 16 is the 4th effective subframe.That is, effective subframe is subframe 1,6,11 and 16, and the reference signal wherein transmitted in effective subframe can see the grey parts configuring 0 correspondence in Fig. 2.

(2) different when the cycle of CSI-RS with CSI-IM in reference signal, or, in reference signal the cycle of CSI-RS with CSI-IM identical but skew is different time, obtain the target-subframe of the first transmission CSI-RS corresponding with reference signal, and the target-subframe of the first transmission CSI-IM corresponding with reference signal.

If before the target-subframe of first transmission CSI-RS is positioned at the target-subframe of first transmission CSI-IM, then determine that the target-subframe of first transmission CSI-IM is the 1st effective subframe.

In the target-subframe after (n-1)th effective subframe that reference signal is corresponding, determining that time interval between (n-1)th effective subframe is minimum and being not less than a target-subframe in the default time interval is n-th effective subframe.Wherein, n be greater than 1 positive integer.

For the structural representation of the resource lattice shown in Fig. 2, when the reference signal configuration information that CSI Process is corresponding is configuration 1, the cycle of CSI-RS and CSI-IM is 5ms, the skew of CSI-RS is 2ms, the skew of CSI-IM is 4ms, then subscriber equipment can determine that target-subframe is subframe 2,4,7,9,12,14,17 and 19.Subscriber equipment can determine that the cycle of CSI-RS with CSI-IM in the reference signal that CSI Process is corresponding is identical but skew is not identical, and wherein the target-subframe of first middle transmission CSI-RS is subframe 2, and the target-subframe of first middle transmission CSI-IM is subframe 4.Transmit CSI-RS in subframe 2, all not middle transmission of reference signals of the subframe before subframe 2, subscriber equipment only can obtain channel estimation results H according to the CSI-RS of transmission in subframe 2, cannot obtain interfere information P, also just cannot calculate CSI.Subscriber equipment can obtain channel estimation results H according to the CSI-RS of transmission in subframe 2, CSI-IM according to transmission in subframe 4 can obtain interfere information P, and then calculating CSI according to channel estimation results H and interfere information P, then subscriber equipment can determine that subframe 4 is the 1st effective subframe.

Wherein, the time interval of presetting can be 5ms, subscriber equipment can in the target-subframe after the 1st effective subframe, it is subframe 9,12,14,17 and 19 that the time interval determining between the 1st effective subframe is not less than the target-subframe in the default time interval, and then in above-mentioned subframe, determine that time interval between the 1st effective subframe the shortest target-subframe is subframe 9, namely subframe 9 is the 2nd effective subframe.In like manner, subscriber equipment can in the target-subframe after the 2nd effective subframe, it is subframe 14,17 and 19 that the time interval determining between the 2nd effective subframe is not less than the target-subframe in the default time interval, and then in subframe 14,17 and 19, determine that time interval between the 2nd effective subframe the shortest target-subframe is subframe 14, namely subframe 14 is the 3rd effective subframe.In like manner, subscriber equipment can in the target-subframe after the 3rd effective subframe, it is subframe 19 that the time interval determining between the 3rd effective subframe is not less than the target-subframe in the default time interval, then subscriber equipment can determine that subframe 19 is the 4th effective subframe.That is, effective subframe is subframe 4,9,14 and 19, and the reference signal wherein transmitted in effective subframe can see the grey parts configuring 1 correspondence in Fig. 2.

(3) different when the cycle of CSI-RS with CSI-IM in reference signal, or, in reference signal the cycle of CSI-RS with CSI-IM identical but skew is different time, obtain the target-subframe of the first transmission CSI-RS corresponding with reference signal, and the target-subframe of the first transmission CSI-IM corresponding with reference signal;

If after the target-subframe of first transmission CSI-RS is positioned at the target-subframe of first transmission CSI-IM, then determine that the target-subframe of first transmission CSI-RS is the 1st effective subframe;

In the target-subframe after (n-1)th effective subframe that reference signal is corresponding, determining that time interval between (n-1)th effective subframe is minimum and being not less than a target-subframe in the default time interval is n-th effective subframe;

Wherein, n be greater than 1 positive integer.

For the structural representation of the resource lattice shown in Fig. 2, when the reference signal configuration information that CSI Process is corresponding is configuration 2, the cycle of CSI-RS is 5ms, the cycle of CSI-IM is 10ms, the skew of CSI-RS is 2ms, the skew of CSI-IM is 0ms, then subscriber equipment can determine that target-subframe is subframe 0,2,7,10,12 and 17, and subscriber equipment can determine that the cycle of CSI-RS with CSI-IM in the reference signal that CSI Process is corresponding is all not identical with skew.Wherein, the target-subframe of first middle transmission CSI-RS is subframe 2, the target-subframe of first middle transmission CSI-IM is subframe 0, CSI-IM is transmitted in subframe 0, subscriber equipment only can obtain interfere information P according to the CSI-IM of transmission in subframe 0, channel estimation results H cannot be obtained, also just cannot calculate CSI.Subscriber equipment can obtain interfere information P according to the CSI-IM of transmission in subframe 0, and the CSI-RS according to transmission in subframe 2 can obtain channel estimation results H, then subscriber equipment can determine that subframe 2 is the 1st effective subframe.

The time interval of wherein presetting can be 5ms, subscriber equipment can in the target-subframe after the 1st effective subframe, it is subframe 7,10,12 and 17 that the time interval determining between the 1st effective subframe is not less than the target-subframe in the default time interval, and then in above-mentioned subframe, determine that time interval between the 1st effective subframe the shortest target-subframe is subframe 7, namely subframe 7 is the 2nd effective subframe.In like manner, subscriber equipment can in the target-subframe after the 2nd effective subframe, it is subframe 12 and 17 that the time interval determining between the 2nd effective subframe is not less than the target-subframe in the default time interval, and then in above-mentioned subframe, determine that time interval between the 2nd effective subframe the shortest target-subframe is subframe 12, namely subframe 12 is the 3rd effective subframe.In like manner, subscriber equipment can in the target-subframe after the 3rd effective subframe, it is subframe 17 that the time interval determining between the 3rd effective subframe is not less than the target-subframe in the default time interval, then subscriber equipment can determine that subframe 17 is the 4th effective subframe.That is, effective subframe is subframe 2,7,12 and 17, and the reference signal wherein transmitted in effective subframe can see the grey parts configuring 2 correspondences in Fig. 2.

S103, respectively according to the reference signal transmitted in multiple reference signal separately corresponding effectively subframe, calculates each self-corresponding channel condition information of multiple channel condition information process.

Subscriber equipment according to the reference signal transmitted in multiple reference signal separately corresponding effectively subframe, can calculate each self-corresponding CSI of multiple CSI Process.

In an alternative embodiment, when the reference signal transmitted in the corresponding effectively subframe of reference signal comprises CSI-RS and CSI-IM, according to CSI-RS and CSI-IM transmitted in effective subframe, corresponding CSI is calculated.Such as, when the reference signal configuration information that CSI Process is corresponding is configuration 0, subscriber equipment can according to CSI-RS and CSI-IM of transmission in subframe 1, obtain channel estimation results H and interfere information P respectively, and calculate CSI corresponding to CSI Process according to channel estimation results H and interfere information P.

In an alternative embodiment, when the reference signal transmitted in the corresponding effectively subframe of reference signal comprises CSI-RS, according to the CSI-IM of transmission recently before the CSI-RS transmitted in effective subframe and effective subframe, corresponding CSI is calculated.Such as, when the reference signal configuration information that CSI Process is corresponding is configuration 2, subscriber equipment can obtain channel estimation results H according to the CSI-RS of transmission in subframe 2, according to transmitting the CSI-IM transmitted in the target-subframe of CSI-IM before subframe 2 recently, namely the CSI-IM of transmission in subframe 0 obtains interfere information P, and calculates CSI corresponding to CSI Process according to channel estimation results H and interfere information P.And for example, subscriber equipment can obtain channel estimation results H according to the CSI-RS of transmission in subframe 7, according to transmitting the CSI-IM transmitted in the target-subframe of CSI-IM before subframe 7 recently, namely the CSI-IM of transmission in subframe 0 obtains interfere information P, and calculates CSI corresponding to CSI Process according to channel estimation results H and interfere information P.And for example, subscriber equipment can obtain channel estimation results H according to the CSI-RS of transmission in subframe 12, according to transmitting the CSI-IM transmitted in the target-subframe of CSI-IM before subframe 12 recently, namely the CSI-IM of transmission in subframe 10 obtains interfere information P, and calculates CSI corresponding to CSI Process according to channel estimation results H and interfere information P.

In an alternative embodiment, when the reference signal transmitted in the corresponding effectively subframe of reference signal comprises CSI-IM, according to the CSI-RS of transmission recently before the CSI-IM transmitted in effective subframe and effective subframe, corresponding CSI is calculated.Such as, when the reference signal configuration information that CSI Process is corresponding is configuration 1, subscriber equipment can obtain interfere information P according to the CSI-IM of transmission in subframe 4, according to transmitting the CSI-RS transmitted in the target-subframe of CSI-RS before subframe 4 recently, namely the CSI-RS of transmission in subframe 2 obtains channel estimation results H, and calculates CSI corresponding to CSI Process according to channel estimation results H and interfere information P.And for example, subscriber equipment can obtain interfere information P according to the CSI-IM of transmission in subframe 9, according to transmitting the CSI-RS transmitted in the target-subframe of CSI-RS before subframe 9 recently, namely the CSI-RS of transmission in subframe 7 obtains channel estimation results H, and calculates CSI corresponding to CSI Process according to channel estimation results H and interfere information P.

S104, by each for multiple channel condition information process self-corresponding information feedback to net side apparatus.

Subscriber equipment can by each for multiple CSI Process self-corresponding CSI feedback to net side apparatus.Such as, subscriber equipment sends this CSI to net side apparatus after can calculating CSI corresponding to CSI Process.Optionally, after subscriber equipment can calculate multiple CSI corresponding to CSI Process, obtain mean value by after the multiple CSI filtering calculated, and then send this mean value to net side apparatus.

In the method for existing reporting status information of channel, the target-subframe transmitting reference signal all needs to calculate CSI, and computation complexity is higher, and the embodiment of the present invention only effective subframe needs to calculate CSI.Such as, when the reference signal configuration information that target CS IProcess is corresponding is configuration 1, target-subframe is subframe 2,4,7,9,12,14,17 and 19, effective subframe is subframe 4,9,14 and 19, and that is, the method for existing reporting status information of channel needs calculating 8 CSI, and the embodiment of the present invention can when not affecting CSI reliability, only calculate 4 CSI, CSI bulk densities and reduce one times, effectively can reduce the computation complexity of CSI.

In the method for the reporting status information of channel shown in Fig. 1, receiving net side apparatus is multiple reference signals that multiple CSI Process configures respectively, according to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that multiple reference signal takies separately, respectively according to the reference signal transmitted in multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of multiple CSI Process, by each for multiple CSIProcess self-corresponding CSI feedback to net side apparatus, the computation complexity of channel condition information can be reduced, and reduce hardware cost.

Refer to Fig. 3, Fig. 3 is the schematic flow sheet of the method for a kind of reporting status information of channel provided in second embodiment of the invention, and the method for the reporting status information of channel as shown in the figure in the embodiment of the present invention at least can comprise:

S301, receiving net side apparatus is multiple reference signals that multiple channel condition information process configures respectively.

S302, according to the time interval of presetting and preset rules, determines effective subframe respectively from the target-subframe that multiple reference signal takies separately.

In an alternative embodiment, preset rules can be:

Wherein, n be greater than 1 positive integer.

S303, determines that the channel condition information calculated according to the reference signal of previous effective sub-frame transmission of current effective subframe belongs to the first channel condition information set or the set of second channel state information.

At heterogeneous network (Heterogeneous Network, be called for short HetNet) in scene, net side apparatus can comprise macro station and micro-station, wherein macro station transmitting power is larger, micro-station transmitting power is less, the interference causing the reference signal transmitted in part subframe to be subject to is larger, being interfered of the reference signal transmitted in part subframe is less, to be affected according to the interfere information P that CSI-IM gets, the accuracy of the channel quality instruction (Channel Quality Indicator is called for short CQI) calculated is lower.In order to solve the problems of the technologies described above, net side apparatus can distribute the corresponding target-subframe of arbitrary reference signal and belong to a CSI set respectively and the 2nd CSI gathers, and wherein the different CSI interference of gathering is different.Such as, the interference that subframe 0 ~ 9 is subject to is comparatively large, and the CSI set belonging to subframe 0 ~ 9 is a CSI set, and the interference that subframe 10 ~ 19 is subject to is less, and the CSI set belonging to subframe 10 ~ 19 is the 2nd CSI set.

Wherein, heterogeneous network is the computer produced by different manufacturer, and the network equipment and system form, and operate in most cases in different agreements and support different functions or application.Isomery refers to that two or more wireless communication systems have employed different access technologies, or adopts identical wireless access technology but belong to different cellular carriers.Heterogeneous network utilizes existing various wireless communication system, by the mode merged between system, makes to learn from other's strong points to offset one's weaknesses between multisystem, can comprehensively play respective advantage.

Concrete, after effective subframe determined by subscriber equipment, can judge whether transmit CSI-IM in the corresponding current effective subframe of reference signal, when not transmitting CSI-IM in current effective subframe, determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of current effective subframe belongs to a CSI set or the 2nd CSI set.

For the structural representation of the resource lattice shown in Fig. 2, the corresponding target-subframe of arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers, when the reference signal configuration information that CSI Process is corresponding is configuration 2, current effective subframe is subframe 7, do not transmit CSI-IM in subscriber equipment determination subframe 7, subscriber equipment can determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of current effective subframe belongs to a CSI set or the 2nd CSI set.

In an alternative embodiment, after effective subframe determined by subscriber equipment, can judge whether transmit CSI-IM in the corresponding current effective subframe of reference signal, when transmitting CSI-IM in the corresponding current effective subframe of reference signal, according to the reference signal transmitted in current effective subframe that reference signal is corresponding, calculate the CSI of the CSI set belonging to current effective subframe.Such as, when transmitting CSI-IM in current effective subframe, subscriber equipment can according to channel set information, obtain the CSI set identification information that current effective subframe is corresponding, wherein channel set information can comprise CSI set identification information corresponding to each subframe, the CSI set identification information corresponding according to current effective subframe, determines the CSI set that current effective subframe is corresponding, and then according to the reference signal transmitted in current effective subframe, calculate the CSI of the CSI set belonging to current effective subframe.

For the structural representation of the resource lattice shown in Fig. 2, the corresponding target-subframe of arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers, when the reference signal configuration information that CSI Process is corresponding is configuration 0, current effective subframe is subframe 1, CSI-IM is transmitted in subscriber equipment determination subframe 1, subscriber equipment according to the reference signal of transmission in subframe 1, can calculate the CSI of the CSI set belonging to subframe 1.Such as, when determining that the set of the CSI belonging to subframe 1 is a CSI set, subscriber equipment according to the reference signal of transmission in subframe 1, can calculate the CSI of a CSI set.When the CSI set determining subframe 1 correspondence is the 2nd CSI set, subscriber equipment according to the reference signal of transmission in subframe 1, can calculate the CSI of the 2nd CSI set.

S304, according to the reference signal transmitted in current effective subframe, calculates the channel condition information of the channel condition information set different from the channel condition information set belonging to previous channel condition information.

After subscriber equipment determines that the CSI calculated according to the reference signal of previous effective sub-frame transmission of current effective subframe belongs to a CSI set or the 2nd CSI set, can according to the reference signal transmitted in current effective subframe, calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers.For the structural representation of the resource lattice shown in Fig. 2, the corresponding target-subframe of arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers, when the reference signal configuration information that CSI Process is corresponding is configuration 2, current effective subframe is subframe 7, CSI-IM is not transmitted in subframe 7, subscriber equipment can determine according to subframe 7 before first effective subframe in the CSI that calculates of the reference signal transmitted belong to a CSI set or the 2nd CSI set, and then according to the reference signal transmitted in subframe 7, calculate the CSI of the 2nd CSI set of subframe 7 correspondence.Such as, if determine first effective subframe before subframe 7, namely the CSI of subframe 2 correspondence is the CSI of CSI set 0, then subscriber equipment can according to the reference signal of transmission in subframe 7, and calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers.When determining before subframe 7 first effective subframe, when the CSI that namely in subframe 2, the reference signal of transmission calculates belongs to a CSI set, subscriber equipment according to the reference signal of transmission in subframe 7, can calculate the CSI of the 2nd CSI set; When the CSI calculated according to the reference signal of transmission in subframe 2 belongs to the 2nd CSI set, subscriber equipment according to the reference signal of transmission in subframe 7, can calculate the CSI of a CSI set.

S305, by each for multiple channel condition information process self-corresponding information feedback to net side apparatus.

In the method for the reporting status information of channel shown in Fig. 3, receiving net side apparatus is multiple reference signals that multiple CSI Process configures respectively, according to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that multiple reference signal takies separately, when not transmitting CSI-IM in the corresponding current effective subframe of reference signal, determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of current effective subframe belongs to a CSI set or the 2nd CSI set, according to the reference signal transmitted in current effective subframe, calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers, and by each for multiple CSI Process self-corresponding CSI feedback to net side apparatus, can guarantee under heterogeneous network scene, reduce the computation complexity of CSI, and reduce hardware cost, the calculation times of a CSI set and the 2nd CSI set is more balanced simultaneously.

Refer to Fig. 4, Fig. 4 is the schematic flow sheet of the method for a kind of reporting status information of channel provided in third embodiment of the invention, and the method for the reporting status information of channel as shown in the figure in the embodiment of the present invention at least can comprise:

S401, receiving net side apparatus is multiple reference signals that multiple channel condition information process configures respectively.

S402, according to the time interval of presetting and preset rules, determines effective subframe respectively from the target-subframe that multiple reference signal takies separately.

In an alternative embodiment, preset rules can be:

If before the target-subframe of first transmission CSI-RS is positioned at the target-subframe of first transmission CSI-IM, then determine that the target-subframe of first transmission CSI-IM is the 1st effective subframe;

Wherein, n be greater than 1 positive integer.

S403, judges whether the quantity of current channel condition information to be calculated is greater than predetermined number threshold value.

Subscriber equipment can judge whether the quantity of current channel condition information to be calculated is greater than predetermined number threshold value.When judged result is for being, perform step S404 further; When judged result is no, according to the reference signal transmitted in CSI Process corresponding to current CSI to be calculated separately corresponding effectively subframe, calculate corresponding CSI.

In an alternative embodiment, when subscriber equipment is operated in CA state, if variable number is 2, each Serving cell can configure at most 4 CSI Processe, namely subscriber equipment needs the CSI that calculating 8 CSIProcess are corresponding, for each Serving cell, the time interval of presetting between each effective subframe is 5ms, the CSI that calculating 8 kinds of CSI Process are corresponding is needed at most in 5ms, subscriber equipment calculates CSI corresponding to 2 CSI Process in each subframe support, and the CSI that can complete all CSI Process calculates.Predetermined number threshold value can be set as 2 by subscriber equipment, namely calculates at most CSI corresponding to 2 CSI Process in each subframe, when not affecting CSI reliability, effectively can reduce the computation complexity of CSI.It is pointed out that predetermined number threshold value in the embodiment of the present invention is including but not limited to 2, research staff can revise accordingly in conjunction with different scene, specifically not by the restriction of the embodiment of the present invention.

S404, determines the destination channel state information process meeting predetermined number threshold value in the channel condition information process that multiple channel condition information is corresponding.

Subscriber equipment can determine the target CS I Process meeting predetermined number threshold value in the CSI Process that CSI is corresponding.

In an alternative embodiment, the priority that subscriber equipment can be numbered according to the process of each CSI Process, determines the target CS I Process meeting predetermined number threshold value.Such as, net side apparatus is 2 CSI Process to user device configuration, be respectively CSI Process1 and CSI Process2, the priority that subscriber equipment can be numbered according to the process of each CSI Process, obtain the priority of each CSI Process, wherein the priority of CSIProcess1 is higher than CSI Process2, and when predetermined number threshold value is 1, the target CS I Process meeting predetermined number threshold value can be CSI Process1.

In an alternative embodiment, the priority that subscriber equipment can be numbered according to the process of each CSI Process, and the priority of the Serving cell numbering of Serving cell corresponding to the identical CSI Process of priority of process numbering, determine the target CS I Process meeting predetermined number threshold value.Such as, subscriber equipment is operated in CA state, variable number is 2, net side apparatus is configured with 2 CSI Process to first Serving cell CC1, be respectively CSI Process1 and CSI Process2, net side apparatus is returned second Serving cell CC2 and is configured with 2 CSI Process, is respectively CSI Process1 and CSI Process2.The priority that subscriber equipment can be numbered according to the process of above-mentioned 4 CSI Process, obtain the priority of each CSI Process, wherein the priority of the CSI Process1 of CC1 higher than the priority of the CSI Process2 of CSI Process2 and CC2 of CC1, the CSI Process1 of CC2 higher than the CSI Process2 of CSI Process2 and CC2 of CC1.And then the priority that subscriber equipment can be numbered according to the Serving cell of Serving cell, obtain the priority of the identical CSI Process of priority of process numbering.Such as subscriber equipment according to the priority of Serving cell numbering, can determine the CSI Process1 of priority higher than CC2 of the CSI Process1 of CC1, and the priority of the CSI Process2 of CC1 is higher than the CSI Process2 of CC2.When predetermined number threshold value is 2, the target CS I Process meeting predetermined number threshold value can be the CSI Process1 of CSI Process1 and CC2 of CC1.

In an alternative embodiment, when detecting that the CSI Process that multiple CSI is corresponding comprises the CSI Process of the Serving cell of unicast pattern, determine that the priority of the CSI Process of the Serving cell of unicast pattern is the highest.Such as, subscriber equipment is operated in CA state, variable number is 2, the transmission mode of first Serving cell CC1 is unicast pattern, i.e. non-CoMP pattern, net side apparatus is configured with 2 CSI Process to second Serving cell CC2, is respectively CSI Process1 and CSI Process2, and wherein the priority of the CSI Process of CC1 is higher than the CSI Process1 of CC2 and CSI Process2.When predetermined number threshold value is 2, the target CS I Process meeting predetermined number threshold value can be the CSI Process1 of CSI Process and CC2 of CC1.

Further alternative, arbitrary target-subframe that the CSI Process of the Serving cell of unicast pattern is corresponding is effective subframe, and the reference signal transmitted in arbitrary target-subframe is the specific reference signal in Serving cell of described unicast pattern.

S405, according to the reference signal transmitted in destination channel state information process separately corresponding effectively subframe, calculates corresponding channel condition information.

Subscriber equipment according to the reference signal transmitted in target CS I Process separately corresponding effectively subframe, can calculate corresponding CSI.

In an alternative embodiment, when the reference signal transmitted in the corresponding effectively subframe of reference signal comprises CSI-RS and CSI-IM, according to CSI-RS and CSI-IM transmitted in effective subframe, corresponding CSI is calculated.

In an alternative embodiment, when the reference signal transmitted in the corresponding effectively subframe of reference signal comprises CSI-RS, according to the CSI-IM of transmission recently before the CSI-RS transmitted in effective subframe and effective subframe, corresponding CSI is calculated.

In an alternative embodiment, when the reference signal transmitted in the corresponding effectively subframe of reference signal comprises CSI-IM, according to the CSI-RS of transmission recently before the CSI-IM transmitted in effective subframe and effective subframe, corresponding CSI is calculated.

S406, according to the reference signal transmitted in other channel condition information processes separately corresponding effectively subframe, the intended target subframe after described effective subframe calculates corresponding channel condition information.

Subscriber equipment can according to the reference signal transmitted in other CSI Process in CSI Process corresponding to current CSI to be calculated separately corresponding effectively subframe, and the intended target subframe after effective subframe calculates corresponding channel condition information.

Concrete, in descending CoMP system, net side apparatus can give maximum 4 the CSI Process of Serving cell configuration.In CA scene, the carrier wave of multiple Serving cell can be had to be polymerized.For the structural representation of the resource lattice shown in Fig. 5, subscriber equipment is operated in CA state, and variable number is 3, and wherein the transmission mode of first service community CC0 is non-CoMP pattern, i.e. unicast pattern; The transmission mode of second service community CC1 is CoMP pattern, and net side apparatus is configured with 2 CSI Process to CC1; The transmission mode of the 3rd Serving cell CC2 is CoMP pattern, and net side apparatus is configured with 2 CSIProcess to CC2.

The corresponding CSI Process in Serving cell of non-CoMP pattern, transmission of reference signals in each subframe in this CSI Process, each subframe all needs to calculate CSI, then determine that in the CSI Process that the Serving cell of non-CoMP pattern is corresponding, each subframe is effective subframe, wherein reference signal can be the specific reference signal in Serving cell (Cell-Specific Reference Signal is called for short CRS) of non-CoMP pattern.Wherein the priority of the CSI Process that the Serving cell of non-CoMP pattern is corresponding is higher than the priority of CSI Process corresponding to the Serving cell of CoMP pattern.As shown in Figure 5, subscriber equipment can determine that subframe 0 ~ 19 is effective subframe, and the reference signal wherein effectively transmitted in subframe can see grey parts corresponding to CC0 in Fig. 5.

Net side apparatus is configured with 2 CSI Process to the Serving cell CC1 of CoMP pattern, and then be configured with a CSI-RS1 and CSI-IM1 to CSI Process1, subscriber equipment can determine that effective subframe comprises subframe 4,9,14 and 19, and the reference signal wherein effectively transmitted in subframe can see grey parts corresponding to the CSI Process1 of CC1 in Fig. 5.Net side apparatus is configured with a CSI-RS2 and CSI-IM2 to CSI Process2, subscriber equipment can determine that effective subframe comprises subframe 4,9,14 and 19, and the reference signal wherein effectively transmitted in subframe can see grey parts corresponding to the CSI Process2 of CC1 in Fig. 5.

Net side apparatus is configured with 2 CSI Process to the Serving cell CC2 of CoMP pattern, and then be configured with a CSI-RS1 and CSI-IM1 to CSI Process1, subscriber equipment can determine that effective subframe comprises subframe 2,7,12 and 17, and the reference signal wherein effectively transmitted in subframe can see grey parts corresponding to the CSI Process1 of CC2 in Fig. 5.Net side apparatus is configured with a CSI-RS2 and CSI-IM2 to CSI Process2, subscriber equipment can determine that effective subframe comprises subframe 4,9,14 and 19, and the reference signal wherein effectively transmitted in subframe can see grey parts corresponding to the CSI Process2 of CC2 in Fig. 5.

In the structural representation of the resource lattice shown in Fig. 5, when predetermined number threshold value is 2, the CSI Process that the current CSI to be calculated of subframe 2 is corresponding comprises the CSI Process1 of CSI Process and CC2 of CC0, subscriber equipment can determine that the quantity of current CSI to be calculated equals predetermined number threshold value, and then according to the reference signal transmitted in CSI Process corresponding to current CSI to be calculated separately corresponding effectively subframe, calculate corresponding CSI.

In the structural representation of the resource lattice shown in Fig. 5, when predetermined number threshold value is 2, the CSI Process that the current CSI to be calculated of subframe 4 is corresponding comprises the CSI Process2 of CSI Process2 and CC2 of CSI Process1, CC1 of CSI Process, CC1 of CC0, and subscriber equipment can determine that the quantity of current CSI to be calculated is greater than predetermined number threshold value.Subscriber equipment can determine that multiple CSI Process is arranged as from high to low according to priority: the CSI Process2 of CSI Process2 and CC2 of CSI Process1, CC1 of CSI Process, CC1 of CC0, the target CS I Process meeting predetermined number threshold value comprises the CSI Process1 of CSI Process and CC1 of CC0, and other CSI Process comprise the CSI Process2 of CSI Process2 and CC2 of CC1.

Subscriber equipment can according to the reference signal of transmission in subframe 4 corresponding to the CSI Process of CC0, calculate the CSI that the CSI Process of CC0 is corresponding, and according to the reference signal of transmission in subframe 4 corresponding to the CSI Process1 of CC1, calculate the CSI that the CSI Process1 of CC1 is corresponding.

Further, the CSI Process that the current CSI to be calculated of subframe 5 is corresponding comprises the CSI Process of CC0 in other CSI Process in subframe 4 and subframe 5, namely the CSI Process that the current CSI to be calculated of subframe 5 is corresponding comprises the CSI Process of CC0, the CSI Process2 of CSI Process2 and CC2 of CC1, subscriber equipment can according to the reference signal of transmission in the corresponding subframe 5 of the CSI Process of CC0, calculate the CSI that the CSI Process of CC0 is corresponding, and according to the reference signal transmitted in the corresponding subframe 4 of the CSI Process2 of CC1, calculate the CSI that the CSI Process2 of CC1 is corresponding.

Further, the CSI Process that the current CSI to be calculated of subframe 6 is corresponding comprises the CSI Process of CC0 in the CSI Process2 of the CC2 in subframe 4 and subframe 6, namely the CSI Process that the current CSI to be calculated of subframe 6 is corresponding comprises the CSI Process2 of CSI Process and CC2 of CC0, subscriber equipment can according to the reference signal of transmission in the corresponding subframe 6 of the CSI Process of CC0, calculate the CSI that the CSIProcess of CC0 is corresponding, and according to the reference signal transmitted in the corresponding subframe 4 of the CSI Process2 of CC2, calculate the CSI that the CSI Process2 of CC2 is corresponding.

In prior art scheme, subscriber equipment needs to calculate CSI corresponding to 4 CSI Process in subframe 4, and the embodiment of the present invention, by time division multiplexing, can guarantee that each subframe calculates at most 2 CSI, effectively reduces the computation complexity of CSI.

S407, by each for multiple channel condition information process self-corresponding information feedback to net side apparatus.

In the method for the reporting status information of channel shown in Fig. 4, receiving net side apparatus is multiple reference signals that multiple CSI Process configures respectively, according to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that multiple reference signal takies separately, when judging that the quantity of current CSI to be calculated is greater than predetermined number threshold value, the target CS I Process meeting predetermined number threshold value is determined in the CSI Process that multiple CSI is corresponding, according to the reference signal transmitted in target CS I Process separately corresponding effectively subframe, calculate corresponding CSI, according to the reference signal transmitted in other CSI Process separately corresponding effectively subframe, intended target subframe after described effective subframe calculates corresponding CSI, by each for multiple CSI Process self-corresponding CSI feedback to net side apparatus, the embodiment of the present invention can carry out time division multiplexing between effective subframe, the computation complexity of effective reduction channel condition information, and reduce hardware cost.

Refer to Fig. 6, Fig. 6 is the structural representation of a kind of subscriber equipment provided in first embodiment of the invention, wherein the subscriber equipment that provides of the embodiment of the present invention is corresponding with the method shown in Fig. 1, may operate in the executive agent of the method for the reporting status information of channel shown in Fig. 1, subscriber equipment as shown in the figure in the embodiment of the present invention at least can comprise receiving element 601, determining unit 602, computing unit 603 and feedback unit 604, wherein:

Receiving element 601, be multiple reference signals that multiple CSI Process configures respectively for receiving net side apparatus, described multiple reference signal and described multiple CSI Process one_to_one corresponding, wherein, each reference signal comprises CSI-RS and CSI-IM periodically sent, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in described CSI-RS and described CSI-IM.

Determining unit 602, the time interval of presetting for basis and preset rules, effective subframe is determined respectively from the target-subframe that described multiple reference signal takies separately, wherein, the time interval between corresponding with arbitrary reference signal two adjacent effective subframes is not less than the described default time interval.

Computing unit 603, for respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculates each self-corresponding CSI of described multiple CSI Process.

Feedback unit 604, for giving described net side apparatus by each self-corresponding CSI feedback of described multiple CSI Process.

As the optional execution mode of one, preset rules can comprise:

When in described reference signal, the cycle of CSI-RS with CSI-IM is identical, and when offseting identical, determine that the first target-subframe corresponding with described reference signal is the 1st effective subframe, and in target-subframe after (n-1)th effective subframe that described reference signal is corresponding, determining that time interval between described (n-1)th effective subframe is minimum and being not less than a target-subframe in the described default time interval is n-th effective subframe.Or

Wherein, n be greater than 1 positive integer.

As the optional execution mode of one, the corresponding target-subframe of described arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers, then

Computing unit 603, for when not transmitting CSI-IM in the corresponding current effective subframe of described reference signal, determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of described current effective subframe belongs to a CSI set or the 2nd CSI set, and according to the reference signal transmitted in described current effective subframe, calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers.

Computing unit 603, also for when transmitting CSI-IM in the corresponding current effective subframe of described reference signal, according to the reference signal transmitted in described current effective subframe that described reference signal is corresponding, calculate the CSI of the CSI set belonging to described current effective subframe.

As the optional execution mode of one, the subscriber equipment in the embodiment of the present invention can also comprise:

Judging unit 605, for described computing unit 603 respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, before calculating each self-corresponding CSI of described multiple CSI Process, judge whether the quantity of current CSI to be calculated is greater than predetermined number threshold value.

Determining unit 602, also for when described judging unit 605 judged result is for being, determines the target CS I Process meeting described predetermined number threshold value in the CSI Process that described multiple CSI is corresponding.

Described computing unit 603, also for according to the reference signal transmitted in described target CS I Process separately corresponding effectively subframe, calculate corresponding CSI, and according to the reference signal transmitted in other CSI Process in CSI Process corresponding to described multiple CSI separately corresponding effectively subframe, the intended target subframe after described effective subframe calculates corresponding CSI.

Described computing unit 603, also for when described judging unit 605 judged result is no, according to the reference signal transmitted in CSI Process corresponding to described CSI separately corresponding effectively subframe, calculates corresponding CSI.

As the optional execution mode of one, determining unit 602, for the priority of numbering according to the process of each self-corresponding CSI Process of described multiple CSI, determines the target CS IProcess meeting described predetermined number threshold value.

As the optional execution mode of one, described determining unit 602, for the priority of numbering according to the process of each self-corresponding CSI Process of described multiple CSI, and the priority of the Serving cell numbering of Serving cell corresponding to the identical CSIProcess of priority of process numbering, determine the target CS I Process meeting described predetermined number threshold value.

As the optional execution mode of one, determining unit 602, during for detecting that the CSI Process that described multiple CSI is corresponding comprises the CSI Process of the Serving cell of unicast pattern, determine that the priority of the CSI Process of the Serving cell of described unicast pattern is the highest.

As the optional execution mode of one, arbitrary target-subframe that the CSI Process of the Serving cell of described unicast pattern is corresponding is effective subframe, and the reference signal transmitted in described arbitrary target-subframe is the specific reference signal in Serving cell of described unicast pattern.

As the optional execution mode of one, determining unit 602, also for described computing unit 603 according to the reference signal transmitted in other CSI Process described separately corresponding effectively subframe, given sub-frame after described effective subframe is determined to be not more than described predetermined number threshold value in the quantity of described intended target subframe CSI to be calculated before calculating corresponding CSI.

As the optional execution mode of one, described computing unit 603, during for comprising CSI-RS and CSI-IM when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to CSI-RS and CSI-IM transmitted in described effective subframe, calculate corresponding CSI.

Computing unit 603, time also for comprising CSI-RS when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to the CSI-IM of transmission recently before the CSI-RS transmitted in described effective subframe and described effective subframe, calculates corresponding CSI.

Computing unit 603, time also for comprising CSI-IM when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to the CSI-RS of transmission recently before the CSI-IM transmitted in described effective subframe and described effective subframe, calculates corresponding CSI.

In the subscriber equipment shown in Fig. 6, it is multiple reference signals that multiple CSI Process configures respectively that receiving element 601 receives net side apparatus, determining unit 602 is according to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that multiple reference signal takies separately, computing unit 603 is respectively according to the reference signal transmitted in multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of multiple CSI Process, feedback unit 604 by each for multiple CSI Process self-corresponding CSI feedback to net side apparatus, the computation complexity of channel condition information can be reduced, and reduce hardware cost.

Refer to Fig. 7, Fig. 7 is the structural representation of a kind of subscriber equipment provided in second embodiment of the invention, for performing the method for the reporting status information of channel that the embodiment of the present invention provides.As shown in Figure 7, this subscriber equipment comprises: at least one processor 701, such as CPU, at least one network interface 703, memory 704, at least one communication bus 702.Communication bus 702 is for realizing the connection communication between these assemblies.Wherein, memory 704 may comprise high-speed RAM memory, still may comprise non-labile memory (non-volatile memory), such as at least one magnetic disc store.Memory 704 optionally can comprise at least one and be positioned at storage device away from aforementioned processor 701.Store batch processing code in memory 704, and processor 701 calls the program code stored in memory 704, for performing following operation:

Receiving net side apparatus by network interface 703 is multiple reference signals that multiple CSI Process configures respectively, described multiple reference signal and described multiple CSI Process one_to_one corresponding, wherein, each reference signal comprises CSI-RS and CSI-IM periodically sent, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in described CSI-RS and described CSI-IM.

According to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that described multiple reference signal takies separately, wherein, the time interval between corresponding with arbitrary reference signal two adjacent effective subframes is not less than the described default time interval.

Respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of described multiple CSI Process.

Described net side apparatus is given by each self-corresponding CSI feedback of described multiple CSI Process by network interface 703.

As the optional execution mode of one, preset rules can comprise:

Wherein, n be greater than 1 positive integer.

Processor 701 according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculates each self-corresponding CSI of described multiple CSI Process, is specifically as follows respectively:

When not transmitting CSI-IM in the corresponding current effective subframe of described reference signal, determine that the CSI calculated according to the reference signal of previous effective sub-frame transmission of described current effective subframe belongs to a CSI set or the 2nd CSI set, and according to the reference signal transmitted in described current effective subframe, calculating and the CSI belonging to previous CSI gather the CSI that different CSI gathers.

As the optional execution mode of one, processor 701 according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, before calculating each self-corresponding CSI of described multiple CSI Process, can also perform following operation respectively:

Judge whether the quantity of current CSI to be calculated is greater than predetermined number threshold value.

When judged result is for being, in the CSI Process that described multiple CSI is corresponding, determine the target CS I Process meeting described predetermined number threshold value.

According to the reference signal transmitted in described target CS I Process separately corresponding effectively subframe, calculate corresponding CSI, and according to the reference signal transmitted in other CSI Process in CSI Process corresponding to described multiple CSI separately corresponding effectively subframe, the intended target subframe after described effective subframe calculates corresponding CSI.

As the optional execution mode of one, the target CS I Process meeting described predetermined number threshold value determined by processor 701 in the CSI Process that described multiple CSI is corresponding, is specifically as follows:

As the optional execution mode of one, processor 701 is according to the reference signal transmitted in other CSI Process described separately corresponding effectively subframe, and the given sub-frame after described effective subframe can also perform following operation before calculating corresponding CSI:

When the reference signal transmitted in the corresponding effectively subframe of described reference signal comprises CSI-RS and CSI-IM, according to CSI-RS and CSI-IM transmitted in described effective subframe, calculate corresponding CSI.

When the reference signal transmitted in the corresponding effectively subframe of described reference signal comprises CSI-RS, according to the CSI-IM of transmission recently before the CSI-RS transmitted in described effective subframe and described effective subframe, calculate corresponding CSI.

Concrete, the subscriber equipment introduced in the embodiment of the present invention can part or all of flow process in order to implement composition graphs 1 of the present invention, in the embodiment of the method for reporting status information of channel that Fig. 3 and Fig. 4 introduces.

Refer to Fig. 8, Fig. 8 is the structural representation of a kind of communication system provided in the embodiment of the present invention, and the communication system as shown in the figure in the embodiment of the present invention at least can comprise the first net side apparatus 1001 and subscriber equipment 804, wherein:

First net side apparatus 801, for being sent as multiple reference signals that multiple CSI Process configures respectively to subscriber equipment 804.

Subscriber equipment 804, for receiving multiple reference signals that the first net side apparatus 801 sends, described multiple reference signal and described multiple CSI Process one_to_one corresponding, wherein, each reference signal comprises CSI-RS and CSI-IM periodically sent, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in described CSI-RS and described CSI-IM.

Subscriber equipment 804, also for according to preset the time interval and preset rules, effective subframe is determined respectively from the target-subframe that described multiple reference signal takies separately, wherein, the time interval between corresponding with arbitrary reference signal two adjacent effective subframes is not less than the described default time interval.

Subscriber equipment 804, also for respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculates each self-corresponding CSI of described multiple CSI Process.

Subscriber equipment 804, also for giving described net side apparatus by each self-corresponding CSI feedback of described multiple CSI Process.

As the optional execution mode of one, the communication system in the embodiment of the present invention can also comprise the second net side apparatus 1002 and the 3rd net side apparatus 1003.

Concrete, in descending CoMP system, the first net side apparatus 1001 can configure maximum 4 CSI Process to Serving cell.In CA scene, the carrier wave of multiple Serving cell can be had to be polymerized.For the structural representation of the resource lattice shown in Fig. 5, subscriber equipment 1004 is operated in CA state, variable number is 3, wherein the 3rd net side apparatus 1003 can send the specific reference signal in community corresponding to first service community CC0 to subscriber equipment 1004, the transmission mode of CC0 is non-CoMP pattern, i.e. unicast pattern; The transmission mode of second service community CC1 is CoMP pattern, and the first net side apparatus 1001 is configured with 2 CSIProcess to CC1; The transmission mode of the 3rd Serving cell CC2 is CoMP pattern, and the second net side apparatus 1002 is configured with 2 CSI Process to CC2.

The corresponding CSI Process in Serving cell of non-CoMP pattern, in this CSI Process, each subframe carries reference signal, each subframe all needs to calculate CSI, then determine that in the CSI Process that the Serving cell of non-CoMP pattern is corresponding, each subframe is effective subframe, wherein reference signal can be the specific reference signal in Serving cell of non-CoMP pattern.Wherein the priority of the CSI Process that the Serving cell of non-CoMP pattern is corresponding is higher than the priority of CSI Process corresponding to the Serving cell of CoMP pattern.As shown in Figure 5, subscriber equipment 1004 can determine that subframe 0 ~ 19 is effective subframe, and wherein effectively the subframe reference signal of carrying can see grey parts corresponding to CC0 in Fig. 5.

First net side apparatus 1001 is configured with 2 CSI Process to the Serving cell CC1 of CoMP pattern, and then be configured with a CSI-RS1 and CSI-IM1 to CSI Process1, subscriber equipment 1004 can determine that effective subframe comprises subframe 4,10,14 and 19, and wherein effectively the subframe reference signal of carrying can see grey parts corresponding to the CSI Process1 of CC1 in Fig. 5.First net side apparatus 1001 is configured with a CSI-RS2 and CSI-IM2 to CSIProcess2, subscriber equipment 1004 can determine that effective subframe comprises subframe 4,10,14 and 19, and wherein effectively the subframe reference signal of carrying can see grey parts corresponding to the CSI Process2 of CC1 in Fig. 5.

Second net side apparatus 1002 is configured with 2 CSI Process to the Serving cell CC2 of CoMP pattern, and then be configured with a CSI-RS1 and CSI-IM1 to CSI Process1, subscriber equipment 1004 can determine that effective subframe comprises subframe 2,7,12 and 17, and wherein effectively the subframe reference signal of carrying can see grey parts corresponding to the CSI Process1 of CC2 in Fig. 5.Second net side apparatus 1002 is configured with a CSI-RS2 and CSI-IM2 to CSI Process2, subscriber equipment 1004 can determine that effective subframe comprises subframe 4,10,14 and 19, and wherein effectively the subframe reference signal of carrying can see grey parts corresponding to the CSI Process2 of CC2 in Fig. 5.

Subscriber equipment 1004 can judge whether the quantity of the CSI Process that current CSI to be calculated is corresponding is greater than predetermined number threshold value, if the determination result is YES, given sub-frame then after current effective subframe, the CSI that the CSI Process that calculating priority level is lower is corresponding.

As shown in Figure 5, when predetermined number threshold value is 2, the CSIProcess that the current CSI to be calculated of subframe 1 is corresponding comprises the CSI Process of CC0, the quantity of the current CSI to be calculated of subframe 1 is 1, be less than predetermined number threshold value, the then reference signal that can carry according to subframe 1 of subscriber equipment 1004, calculates corresponding CSI.

The CSI Process that the current CSI to be calculated of subframe 4 is corresponding comprises the CSI Process2 of CSI Process2 and CC2 of CSI Process1, CC1 of CSI Process, CC1 of CC0.Wherein, the transmission mode of CC0 is non-CoMP pattern, then subscriber equipment 1004 can determine that the priority of the CSI Process of CC0 is higher than other CSI Process.The priority that subscriber equipment 1004 can be numbered according to the process of each CSI Process, determine the priority of each CSI Process, wherein the priority of the CSI Process1 of CC1 higher than the priority of the CSI Process2 of CSI Process2 and CC2 of CC1, the CSI Process1 of CC2 higher than the CSI Process2 of CSI Process2 and CC2 of CC1.And then the priority that subscriber equipment 1004 can be numbered according to the Serving cell of Serving cell, obtain the priority of the identical CSIProcess of priority of process numbering.Such as subscriber equipment 1004 according to the priority of Serving cell numbering, can determine the CSI Process1 of priority higher than CC2 of the CSI Process1 of CC1, and the priority of the CSI Process2 of CC1 is higher than the CSI Process2 of CC2.By each CSI Process according to priority sequence be from high to low: the CSI Process2 of CSI Process2 and CC2 of CSI Process1, CC1 of CSI Process1, CC2 of CSI Process, CC1 of CC0.

After subscriber equipment 1004 judges that the quantity of the CSI Process that current CSI to be calculated is corresponding is greater than predetermined number threshold value, can calculate in current effective subframe and meet predetermined number threshold value, and the CSI that the higher CSIProcess of priority is corresponding, and the given sub-frame after current effective subframe calculates CSI corresponding to other CSI Process.

Such as, when predetermined number threshold value is 2, the CSI Process that the current CSI to be calculated of subframe 4 is corresponding comprises the CSI Process2 of CSI Process2 and CC2 of CSI Process1, CC1 of CSI Process, CC1 of CC0, subscriber equipment 1004 can calculate CSI corresponding to the CSI Process of CC0 in subframe 4, and the CSI that the CSI Process1 of CC1 is corresponding, and calculate CSI corresponding to the CSIProcess2 of CC1 in subsequent subframe, and the CSI that the CSI Process2 of CC2 is corresponding.The CSI Process that the current CSI to be calculated of subframe 5 is corresponding comprises the CSI Process2 of CSI Process2 and CC2 of CSI Process, CC1 of CC0, subscriber equipment 1004 can calculate CSI corresponding to the CSI Process of CC0 in subframe 5, and the CSI that the CSI Process2 of CC1 is corresponding, and calculate CSI corresponding to the CSIProcess2 of CC2 in subsequent subframe.The CSI Process that the current CSI to be calculated of subframe 6 is corresponding comprises the CSI Process2 of CSI Process and CC2 of CC0, subscriber equipment 1004 can calculate CSI corresponding to the CSI Process of CC0 in subframe 6, and the CSI that the CSI Process2 of CC2 is corresponding.

In prior art scheme, subscriber equipment 1004 needs to calculate CSI corresponding to 4 CSI Process in subframe 4, CSI corresponding to 1 CSI Process is calculated in subframe 5, CSI corresponding to 2 CSI Process is calculated in subframe 6, the embodiment of the present invention is by determining effective subframe and adopting time division multiplexing, subscriber equipment 1004 can calculate CSI corresponding to maximum 2 CSI Process in each subframe, effectively can reduce the computation complexity of CSI.

In the communication system shown in Fig. 8, net side apparatus 801 is sent as to subscriber equipment 804 multiple reference signals that multiple CSIProcess configures respectively, subscriber equipment 804 is according to the time interval of presetting and preset rules, effective subframe is determined respectively from the target-subframe that multiple reference signal takies separately, subscriber equipment 804 is respectively according to the reference signal transmitted in multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding CSI of multiple CSIProcess, subscriber equipment 804 by each for multiple CSI Process self-corresponding CSI feedback to net side apparatus, the computation complexity of channel condition information can be reduced, and reduce hardware cost.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, not must for identical embodiment or example to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.

In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.

Describe and can be understood in flow chart or in this any process otherwise described or method, represent the module, fragment or the part that comprise the code of the executable instruction of one or more step for realizing specific logical function or process, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.

In flow charts represent or in this logic otherwise described and/or step, such as, the program listing of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasablely edit read-only memory (EPROM or flash memory), fiber device, and portable optic disk read-only memory (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.

Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.

Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.

The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims

1. a method for reporting status information of channel, is characterized in that, comprising:

Receiving net side apparatus is multiple reference signals that multiple channel condition information process (CSI Process) configures respectively, described multiple reference signal and described multiple CSI Process one_to_one corresponding, wherein, each reference signal comprises the channel condition information pilot tone (CSI-RS) and channel condition information interferometry (CSI-IM) that periodically send, and the subframe that each reference signal takies when transmitting is target-subframe, the signal transmitted in arbitrary target-subframe is at least one in described CSI-RS and described CSI-IM;

Respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculate each self-corresponding channel condition information (CSI) of described multiple CSI Process;

2. the method for claim 1, is characterized in that, described preset rules comprises:

Wherein, n be greater than 1 positive integer.

3. method as claimed in claim 1 or 2, is characterized in that, the corresponding target-subframe of described arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers;

4. the method as described in any one of claims 1 to 3, is characterized in that, described respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, before calculating each self-corresponding CSI of described multiple CSI Process, also comprises:

5. method as claimed in claim 4, is characterized in that, determine that the target CS I Process meeting described predetermined number threshold value comprises in the described CSI Process corresponding at described multiple CSI:

6. method as claimed in claim 4, is characterized in that, determine that the target CS I Process meeting described predetermined number threshold value comprises in the described CSI Process corresponding at described multiple CSI:

7. the method as described in any one of claim 4 ~ 6, is characterized in that, determines that the target CS I Process meeting described predetermined number threshold value comprises in the described CSI Process corresponding at described multiple CSI:

8. method as claimed in claim 7, it is characterized in that, arbitrary target-subframe that the CSI Process of the Serving cell of described unicast pattern is corresponding is effective subframe, and the reference signal transmitted in described arbitrary target-subframe is the specific reference signal in Serving cell of described unicast pattern.

9. the method as described in any one of claim 4 ~ 7, it is characterized in that, the reference signal that in the described CSI Process corresponding according to described multiple CSI, other CSI Process transmit in corresponding effectively subframe separately, intended target subframe after described effective subframe also comprises before calculating corresponding CSI:

10. the method as described in any one of claim 1 ~ 9, is characterized in that, described respectively according to the reference signal transmitted in described multiple reference signal separately corresponding effectively subframe, calculates each self-corresponding CSI of described multiple CSI Process and comprises:

11. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

12. subscriber equipmenies as claimed in claim 11, it is characterized in that, described preset rules comprises:

Wherein, n be greater than 1 positive integer.

13. subscriber equipmenies as described in claim 11 or 12, is characterized in that, the corresponding target-subframe of described arbitrary reference signal belongs to a CSI set respectively and the 2nd CSI gathers;

14. subscriber equipmenies as described in any one of claim 11 ~ 13, is characterized in that, also comprise:

15. subscriber equipmenies as claimed in claim 14, is characterized in that,

Described determining unit, for the priority of numbering according to the process of each self-corresponding CSI Process of described multiple CSI, determines the target CS I Process meeting described predetermined number threshold value.

16. subscriber equipmenies as claimed in claim 14, is characterized in that,

Described determining unit, for the priority of numbering according to the process of each self-corresponding CSI Process of described multiple CSI, and the priority of the Serving cell numbering of Serving cell corresponding to the identical CSI Process of priority of process numbering, determine the target CS I Process meeting described predetermined number threshold value.

17. subscriber equipmenies as described in any one of claim 14 ~ 16, is characterized in that,

Described determining unit, during for detecting that the CSI Process that described multiple CSI is corresponding comprises the CSI Process of the Serving cell of unicast pattern, determines that the priority of the CSIProcess of the Serving cell of described unicast pattern is the highest.

18. subscriber equipmenies as claimed in claim 17, it is characterized in that, arbitrary target-subframe that the CSI Process of the Serving cell of described unicast pattern is corresponding is effective subframe, and the reference signal transmitted in described arbitrary target-subframe is the specific reference signal in Serving cell of described unicast pattern.

19. subscriber equipmenies as described in any one of claim 14 ~ 17, is characterized in that,

Described determining unit, also for described computing unit according to the reference signal transmitted in other CSI Process described separately corresponding effectively subframe, given sub-frame after described effective subframe is determined to be not more than described predetermined number threshold value in the quantity of described intended target subframe CSI to be calculated before calculating corresponding CSI.

20. subscriber equipmenies as described in any one of claim 11 ~ 19, is characterized in that,

Described computing unit, during for comprising CSI-RS and CSI-IM when the reference signal transmitted in the corresponding effectively subframe of described reference signal, according to CSI-RS and CSI-IM transmitted in described effective subframe, calculates corresponding CSI;

21. 1 kinds of communication systems, is characterized in that, comprise net side apparatus and the subscriber equipment as described in any one of claim 14 to 26, wherein: