CN104601286B

CN104601286B - A kind of method of reporting status information of channel, user equipment and system

Info

Publication number: CN104601286B
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: 2018-03-27
Anticipated expiration: 2035-01-16
Also published as: WO2016112867A1; CN104601286A

Abstract

The embodiment of the invention discloses a kind of method of reporting status information of channel, user equipment and system, the method for the reporting status information of channel includes：It is multiple reference signals that multiple CSI Process are respectively configured to receive net side equipment；According to default time interval and preset rules, effective subframe is determined in the target-subframe each accounted for from multiple reference signals, the time interval between two corresponding with reference signal adjacent effectively subframes is not less than default time interval；The reference signal transmitted in effective subframe is each corresponded to according to multiple reference signals, calculates each self-corresponding CSI of multiple CSI Process；Give CSI feedback to net side equipment.Using the present invention, the computation complexity of channel condition information can be reduced, and reduces hardware cost.

Description

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

Technical field

The present invention relates to communication technical field, more particularly to a kind of method of reporting status information of channel, user equipment and System.

Background technology

Channel condition information (Channel State Information, abbreviation CSI) played in Modern Communication System to Important effect is closed, it can be scheduling of resource, user's transformat determines, the coordination between multi-user's pairing even multiple cell carries For important information.In third generation partner program (The 3rd Generation Partnership Project, abbreviation In Long Term Evolution (Long Term Evolution, abbreviation LTE) system in 3GPP), CSI generally includes channel quality instruction (Channel Quality Indicator, abbreviation CQI), pre-coding matrix instruction (Precoding Matrix Indicator, abbreviation PMI) and the information such as order instruction (Rank Indicator, abbreviation RI).For it is descending (i.e. net side equipment to User device transmissions data) system, the reference signal that user equipment can generally be sent according to net side equipment calculates CSI, and instead Net side of feeding equipment.Wherein net side equipment, i.e. network side equipment, can be base station.Wherein reference signal can include channel shape State information pilot tone (CSI Reference Signal, abbreviation CSI-RS) and channel condition information interferometry (CSI Interference Measurement, abbreviation CSI-IM).

In 3GPP LTE system, pass through descending coordinated multipoint transmission (Coordinated Multiple Points Transmission, abbreviation CoMP) technology, the interference of cell edge, lifting cell edge when can reduce LTE system identical networking Spectrum efficiency, enhancing coverage and reduce switching times.In descending CoMP system, multiple transmission nodes (Transmission Point, abbreviation TP) cooperates sends DSCH Downlink Shared Channel (Physical Downlink to user equipment Shared Channel, abbreviation PDSCH).Wherein, net side equipment can at most give a serving cell to configure 4 CSI processes (CSI process), and to reference signal corresponding to each CSI process configurations.In addition, LTE system is from SGPP R10 versions This agreement starts to support carrier aggregation (Carrier Aggregation, abbreviation CA) technology, i.e., is polymerize multiple carrier waves, The frequency band wider as one uses.

If in the presence of the CA of 2 carrier waves, serving cell corresponding to each carrier wave is configured with 4 CSI process, user equipment Need to calculate 8 CSI according to 8 CSI process, when 8 CSI-RS and 8 CSI-IM are in corresponding CSI process Cycle phase is same, and skew is also identical, then 8 CSI-RS and 8 CSI-IM may occur in same subframe, that is, need in the son The CSI that frame completes 8 CSI process is calculated.CSI calculating number with the increase of the CSI process numbers of configuration and Increase, increases, computation complexity is higher also with the increase of CA variable number.Further, for chip realization, CSI calculating is inherently more complicated, and the raising of complexity will increase baseband chip area, and hardware cost is higher.

The content of the invention

The present invention provides a kind of method of reporting status information of channel, user equipment and system, can reduce channel status letter The computation complexity of breath, and reduce hardware cost.

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

Receive multiple reference signals that net side equipment is respectively configured for multiple CSI Process, the multiple reference signal Corresponded with the multiple CSI Process, wherein, each reference signal includes the CSI-RS and CSI- periodically sent IM, and the subframe that each reference signal takes in transmission is target-subframe, the signal transmitted in either objective subframe is described It is at least one in CSI-RS and the CSI-IM；

According to default time interval and preset rules, target each accounted for respectively from the multiple reference signal Effective subframe is determined in frame, wherein, the time interval between two corresponding with any reference signal adjacent effectively subframes is not small In the default time interval；

The reference signal transmitted in effective subframe is each corresponded to according to the multiple reference signal respectively, is calculated the multiple Each self-corresponding CSI of CSI Process；

Give each self-corresponding CSI feedbacks of the multiple CSI Process to the net side equipment.

In the first possible implementation, the preset rules include：

When the cycle phase of CSI-RS and CSI-IM in the reference signal is same, and when offseting identical, it is determined that with the reference First target-subframe corresponding to signal is the 1st effective subframe, and (n-1)th corresponding to the reference signal effective subframe it In target-subframe afterwards, it is determined that the time interval between (n-1)th effective subframe is minimum and not less than described default One target-subframe of time interval is n-th of effective subframe；Or

It is different when the cycle of CSI-RS and CSI-IM in the reference signal, or, in the reference signal CSI-RS and CSI-IM cycle phase is same but when offseting different, obtains first transmission CSI-RS corresponding with reference signal target Frame, and first transmission CSI-IM corresponding with reference signal target-subframe；

If the target-subframe of the first transmission CSI-RS is located at before the target-subframe of the first transmission CSI-IM, The target-subframe for determining the first transmission CSI-IM is the 1st effective subframe；

If the target-subframe of the first transmission CSI-RS is located at after the target-subframe of the first transmission CSI-IM, The target-subframe for determining the first transmission CSI-RS is the 1st effective subframe；

In the target-subframe after (n-1)th corresponding to the reference signal effective subframe, it is determined that with described (n-1)th Time interval between effective subframe is minimum and a target-subframe not less than the default time interval is effective for n-th Subframe；

Wherein, n is the positive integer more than 1.

With reference to the possible implementation of the first of first aspect or first aspect, in second of possible implementation In, any reference signal corresponds to target-subframe and is belonging respectively to the first CSI set and the 2nd CSI set；

It is described each to correspond to the reference signal transmitted in effective subframe according to the multiple reference signal respectively, described in calculating Multiple each self-corresponding CSI of CSI Process include：

When the reference signal, which corresponds to, does not transmit CSI-IM in the currently active subframe, it is determined that according to the currently active son The CSI that the reference signal of the previous effectively sub-frame transmission of frame is calculated belongs to the first CSI set or the 2nd CSI set, And according to the reference signal transmitted in the currently active subframe, calculate the CSI different from the CSI set belonging to previous CSI The CSI of set；

When the reference signal, which corresponds to, transmits CSI-IM in the currently active subframe, according to corresponding to the reference signal The reference signal transmitted in the currently active subframe, calculate the CSI of the CSI set belonging to the currently active subframe.

With reference to second of possible implementation of the first or first aspect of first aspect, first aspect, the 3rd It is described each to correspond to the reference letter transmitted in effective subframe according to the multiple reference signal respectively in the possible implementation of kind Number, before calculating each self-corresponding CSI of the multiple CSI Process, in addition to：

Judge whether current CSI to be calculated quantity is more than predetermined number threshold value；

When judged result is to be, determine to meet the predetermined number in CSI Process corresponding to the multiple CSI The target CSI Process of threshold value；

The reference signal transmitted in effective subframe is each corresponded to according to the target CSI Process, corresponding to calculating CSI；

Each corresponded in effective subframe and passed according to other CSI Process in CSI Process corresponding to the multiple CSI Defeated reference signal, calculated in the specified target-subframe effectively after subframe corresponding to CSI；

When judged result is no, each correspond to what is transmitted in effective subframe according to CSI Process corresponding to the CSI Reference signal, CSI corresponding to calculating.

It is described in institute in the 4th kind of possible implementation with reference to the third possible implementation of first aspect State and determine to meet that the target CSI Process of the predetermined number threshold value include in CSI Process corresponding to multiple CSI：

The priority numbered according to each self-corresponding CSI Process of the multiple CSI process, it is determined that meeting described pre- If the target CSI Process of amount threshold.

It is described in institute in the 5th kind of possible implementation with reference to the third possible implementation of first aspect State and determine to meet that the target CSI Process of the predetermined number threshold value include in CSI Process corresponding to multiple CSI：

The priority numbered according to each self-corresponding CSI Process of the multiple CSI process, and process numbering The priority of the serving cell numbering of serving cell corresponding to priority identical CSI Process, it is determined that meeting described default The target CSI Process of amount threshold.

With reference to first aspect the third to first aspect any of the 5th kind possible implementation, the 6th It is described to determine to meet the predetermined number threshold in CSI Process corresponding to the multiple CSI in the possible implementation of kind The target CSI Process of value include：

Detect that CSI Process corresponding to the multiple CSI include the CSI of serving cell of unicast pattern During Process, the CSI Process of the serving cell of unicast pattern highest priority is determined.

With reference to the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation, the single-point Either objective subframe corresponding to the CSI Process of the serving cell of transmission mode is effective subframe, the either objective subframe The reference signal of middle transmission is the specific reference signal of serving cell of the unicast pattern.

With reference to first aspect the third to first aspect any of the 7th kind possible implementation, the 8th Other CSI Process are each in kind possible implementation, in the CSI Process according to corresponding to the multiple CSI The reference signal transmitted in corresponding effective subframe, the specified target-subframe after the effectively subframe calculate corresponding to CSI it Before, in addition to：

It is determined that the quantity in specified target-subframe CSI to be calculated is not more than the predetermined number threshold value.

With reference to any of the 8th kind possible realization of the first of first aspect or first aspect to first aspect Mode, it is described each to be corresponded in effective subframe according to the multiple reference signal respectively in the 9th kind of possible implementation The reference signal of transmission, calculating each self-corresponding CSI of the multiple CSI Process includes：

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS and CSI-IM, according to institute State the CSI-RS and CSI-IM transmitted in effective subframe, CSI corresponding to calculating；

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS, according to the effectively son The CSI-RS transmitted in frame the and CSI-IM, CSI corresponding to calculating transmitted recently before the effectively subframe；

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-IM, according to the effectively son The CSI-IM transmitted in frame the and CSI-RS, CSI corresponding to calculating transmitted recently before the effectively subframe.

Second aspect of the present invention provides a kind of user equipment, including：

Receiving unit, it is multiple reference signals that multiple CSI Process are respectively configured for receiving net side equipment, it is described Multiple reference signals correspond with the multiple CSI Process, wherein, each reference signal includes what is periodically sent CSI-RS and CSI-IM, and the subframe that each reference signal takes in transmission is target-subframe, is transmitted in either objective subframe Signal be the CSI-RS and the CSI-IM in it is at least one；

Determining unit, it is each from the multiple reference signal respectively for according to default time interval and preset rules Effective subframe is determined from the target-subframe of occupancy, wherein, between two corresponding with any reference signal adjacent effectively subframes Time interval be not less than the default time interval；

Computing unit, for each corresponding to the reference transmitted in effective subframe letter according to the multiple reference signal respectively Number, calculate each self-corresponding CSI of the multiple CSI Process；

Feedback unit, for giving each self-corresponding CSI feedbacks of the multiple CSI Process to the net side equipment.

In the first possible implementation, the preset rules include：

If the target-subframe of the first transmission CSI-RS is located at before the target-subframe of the first transmission CSI-IM, The target-subframe for determining the first transmission CSI-IM is the effective subframe of starting；

If the target-subframe of the first transmission CSI-RS is located at after the target-subframe of the first transmission CSI-IM, The target-subframe for determining the first transmission CSI-RS is the effective subframe of starting；

Wherein, n is the positive integer more than 1.

With reference to the possible implementation of the first of second aspect or second aspect, in second of possible implementation In, any reference signal corresponds to target-subframe and is belonging respectively to the first CSI set and the 2nd CSI set；

The computing unit, for when the reference signal corresponds to and does not transmit CSI-IM in the currently active subframe, it is determined that First CSI collection is belonged to according to the CSI that the reference signal of the previous effectively sub-frame transmission of the currently active subframe is calculated Close or the 2nd CSI set, and according to the reference signal transmitted in the currently active subframe, calculate with previous CSI belonging to CSI gather the CSI of different CSI set；

The computing unit, it is additionally operable to when the reference signal corresponds to and transmits CSI-IM in the currently active subframe, root According to the reference signal transmitted in the currently active subframe corresponding to the reference signal, calculate belonging to the currently active subframe CSI set CSI.

With reference to second of possible implementation of the first or second aspect of second aspect, second aspect, In three kinds of possible implementations, in addition to：

Judging unit, each corresponded in effective subframe and passed according to the multiple reference signal respectively for the computing unit Defeated reference signal, before calculating each self-corresponding CSI of the multiple CSI Process, judge current CSI to be calculated number Whether amount is more than predetermined number threshold value；

The determining unit, it is additionally operable to when the judging unit judged result is to be, corresponding to the multiple CSI The target CSI Process for meeting the predetermined number threshold value are determined in CSI Process；

The computing unit, it is additionally operable to each correspond to the ginseng transmitted in effective subframe according to the target CSI Process Examine signal, CSI corresponding to calculating, and other CSI Process are each in the CSI Process according to corresponding to the multiple CSI The reference signal transmitted in corresponding effective subframe, the specified target-subframe after the effectively subframe calculate corresponding to CSI；

The computing unit, it is additionally operable to when the judging unit judged result is no, according to CSI corresponding to the CSI Process each corresponds to the reference signal transmitted in effective subframe, CSI corresponding to calculating.

With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation, the determination Unit, for the priority numbered according to each self-corresponding CSI Process of the multiple CSI process, it is determined that described in meeting The target CSI Process of predetermined number threshold value.

With reference to the third possible implementation of second aspect, in the 5th kind of possible implementation, the determination Unit, numbered for the priority numbered according to each self-corresponding CSI Process of the multiple CSI process, and process Priority identical CSI Process corresponding to serving cell serving cell numbering priority, it is determined that meeting described pre- If the target CSI Process of amount threshold.

With reference to second aspect the third to second aspect any of the 5th kind possible implementation, the 6th In the possible implementation of kind, the determining unit, for detecting that it is single that CSI Process corresponding to the multiple CSI include During the CSI Process of the serving cell of point transmission mode, the CSI of the serving cell of the unicast pattern is determined Process highest priority.

With reference to the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, the single-point Either objective subframe corresponding to the CSI Process of the serving cell of transmission mode is effective subframe, the either objective subframe The reference signal of middle transmission is the specific reference signal of serving cell of the unicast pattern.

With reference to second aspect the third to second aspect any of the 6th kind possible implementation, the 8th In kind possible implementation, the determining unit, being additionally operable to the computing unit, other CSI Process are each according to The reference signal transmitted in corresponding effective subframe, before CSI corresponding to the given sub-frame calculating after the effectively subframe, really The quantity for being scheduled on specified target-subframe CSI to be calculated is not more than the predetermined number threshold value.

With reference to any of the 8th kind possible reality of the first of second aspect or second aspect to second aspect Existing mode, in the 9th kind of possible implementation, the computing unit, for being corresponded to when the reference signal in effective subframe When the reference signal of transmission includes CSI-RS and CSI-IM, according to the CSI-RS and CSI-IM transmitted in the effectively subframe, meter CSI corresponding to calculation；

The computing unit, it is additionally operable to include CSI- when the reference signal corresponds to the reference signal transmitted in effective subframe During RS, according to the CSI-IM transmitted recently before the CSI-RS and the effectively subframe transmitted in the effectively subframe, calculating pair The CSI answered；

The computing unit, it is additionally operable to include CSI- when the reference signal corresponds to the reference signal transmitted in effective subframe During IM, according to the CSI-RS transmitted recently before the CSI-IM and the effectively subframe transmitted in the effectively subframe, calculating pair The CSI answered.

Third aspect present invention provides a kind of communication system, including net side equipment and user equipment, user equipment such as The first of two aspects or second aspect to described in any possible implementation in the 9th kind, wherein：

The net side equipment, for sending the multiple ginsengs being respectively configured for multiple CSI Process to the user equipment Signal is examined, so that the user equipment calculates according to the multiple reference signal and feeds back the multiple CSI Process each Corresponding CSI.

Implement the embodiment of the present invention, user equipment reception net side equipment is respectively configured multiple for multiple CSI Process Reference signal, according to default time interval and preset rules, the target-subframe each accounted for respectively from multiple reference signals It is middle to determine effective subframe, the reference signal transmitted in effective subframe is each corresponded to according to multiple reference signals respectively, is calculated multiple Each self-corresponding CSI of CSI Process, give each self-corresponding CSI feedbacks of multiple CSI Process to net side equipment, can reduce The computation complexity of channel condition information, and reduce hardware cost.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

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

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

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

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

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

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

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

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

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

It should be understood that the technical scheme of the embodiment of the present invention can apply to various communication systems, such as：Global system for mobile telecommunications (Global System of Mobile communication, abbreviation GSM) system, CDMA (Code Division Multiple Access, abbreviation CDMA) system, WCDMA (Wideband Code Division Multiple Access, abbreviation WCDMA) system, GPRS (General Packet Radio Service, referred to as GPRS), Long Term Evolution (Long Term Evolution, abbreviation LTE) system, LTE FDDs (Frequency Division Duplex, abbreviation FDD) system, LTE time division duplexs (Time Division Duplex, abbreviation TDD), general shifting Dynamic communication system (Universal Mobile Telecommunication System, abbreviation UMTS) or global interconnection microwave Access (Worldwide Interoperability for Microwave Access, abbreviation WiMAX) communication system etc..

It should also be understood that in embodiments of the present invention, user equipment (User Equipment, abbreviation UE) can be referred to as terminal (Terminal), mobile station (Mobile Station, abbreviation MS) or mobile terminal (Mobile Terminal) etc., the user Equipment can be communicated through wireless access network (Radio Access Network, abbreviation RAN) with one or more core nets, For example, user equipment can be mobile phone (or being " honeycomb " phone) or the computer with mobile terminal etc., for example, with Family equipment can also be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they with it is wireless Access network exchanges voice and/or data.

In embodiments of the present invention, net side equipment can be base station (the Base Transceiver in GSM or CDMA Station, abbreviation BTS) or WCDMA in base station (NodeB, abbreviation NB), can also be the evolved base in LTE Stand (Evolutional Node B, abbreviation eNB), and the present invention does not limit, but for convenience of description, following embodiments will be with eNB Exemplified by illustrate.

3GPP introduces descending coordinated multipoint transmission (Coordinate Multi-Point in LTE R11 agreements Transmission, abbreviation CoMP), the interference of cell edge, lifting cell when descending CoMP system can reduce LTE identical networkings Spectrum efficiency, enhancing coverage and the reduction switching times at edge etc..During descending CoMP, multiple transmission nodes (Transmission Point, abbreviation TP) cooperates sends DSCH Downlink Shared Channel (Physical Downlink Shared to UE Channel, abbreviation PDSCH), in order that optimal down collaboration transmission plan can be selected by obtaining net side equipment, UE needs to report The channel condition information (Channel State Information, abbreviation CSI) of multiple transmission plans, LTE R11 agreements for this Channel condition information process (CSI Process) is defined, the CSI of each transmission plan reports a corresponding CSI Process.Net side equipment can give a serving cell to configure most 4 CSI Process, i.e. a user equipment at most may be used To feed back the CSI information of 4 kinds of transmission plans.

In addition, LTE system supports carrier aggregation (Carrier Aggregation, abbreviation CA) since R10 agreements, i.e., Multiple carrier waves are polymerize, the frequency band wider as one uses.For example, in the case of a ca, if each serving cell will Ask and support COMP, because each serving cell maximum can configure 4 CSI Process, when 2 serving cells carry out CA, most There may be 8 CSI Processes greatly, i.e. a user equipment can at most feed back the CSI information of 8 kinds of transmission plans.

For ease of understanding, by taking LTE system as an example, frame structure is introduced.In LTE system, downstream transmission is organized into Radio frames (radio frame), each wireless 10 milliseconds of frame length, each radio frames include 10 1 millisecond of long subframes (subframe), subframe label is from 0 to 9.Multiple reference signals have been respectively configured to multiple CSI Process in net side equipment, more Individual reference signal corresponds with multiple CSI Process, and reference signal can include channel condition information pilot tone (CSI Reference Signal, abbreviation CSI-RS) and channel condition information interferometry (CSI Interference Measurement, abbreviation CSI-IM).In one reference signal CSI-RS and CSI-IM cycle can be 5ms, 10ms, 20ms, 40ms or 80ms, CSI-RS and CSI-IM skew be able to can also be differed with identical, wherein CSI-RS skew Refer to：Time interval between first transmission CSI-RS target-subframe and subframe 0, CSI-IM skew refer to：It is first Transmit the time interval between CSI-IM target-subframe and subframe 0.User equipment can be each right according to multiple reference signals The CSI-RS transmitted in the target-subframe answered obtains channel estimation results H, according to each self-corresponding target of multiple reference signals The CSI-IM transmitted in frame obtains interference information P, and according to H and P, calculates each self-corresponding CSI of multiple CSI Process.

Fig. 1 is referred to, Fig. 1 is a kind of stream of the method for the reporting status information of channel provided in first embodiment of the invention Journey schematic diagram, as shown in the figure the method for the reporting status information of channel in the embodiment of the present invention can at least include：

S101, it is multiple reference signals that multiple channel condition information processes are respectively configured to receive net side equipment.

It is multiple reference signals that multiple CSI Process are respectively configured that user equipment, which can receive net side equipment,.Wherein Multiple reference signals correspond with multiple CSI Process, and each reference signal can include the CSI-RS periodically sent And CSI-IM, and the subframe that is taken in transmission of each reference signal is target-subframe, the signal transmitted in either objective subframe To be at least one in CSI-RS and CSI-IM.

Specifically, net side equipment can give a serving cell to configure multiple CSI Process, and then give each CSI Process configures a reference signal.For example, net side equipment can be each right according to multiple CSI Process set in advance The reference signal configuration information answered, determines subframe shared during reference signal transmission, is sent and joined by above-mentioned period of sub-frame Signal is examined, the user equipment in the serving cell can receive multiple references that net side equipment is multiple CSI Process configurations Signal., can be according to multiple CSI after user equipment receives each self-corresponding reference signals of multiple CSI Process Each self-corresponding reference signal configuration information of Process, determine that the subframe that reference signal takes in transmission is target-subframe.Its In, reference signal configuration information can include the cycle of reference signal and skew or reference signal take in transmission Subframe.The CSI Process are corresponding in reference signal configuration information corresponding to CSI Process and net side equipment in user equipment Reference signal configuration information by consulting in advance, i.e., reference signal configuration corresponding to CSI Process in user equipment Information is identical with reference signal configuration information corresponding to the CSI Process in net side equipment.

By taking the structural representation of the resource grid shown in Fig. 2 as an example, when reference signal configuration information corresponding to CSI Process During for setting to 0, CSI-RS and CSI-IM cycle are 5ms, and skew is 1ms, i.e., net side equipment is sent once every 5ms CSI-RS and CSI-IM, net side equipment transmits CSI-RS and CSI-IM by being spaced 1ms target-subframe with subframe 0, with subframe 0 It is spaced 1ms target-subframe i.e. subframe 1, the then cycle and skew that user equipment can be according to reference signal, it is determined that passing through Subframe 1,6,11 and 16 transmits CSI-RS and CSI-IM, and above-mentioned subframe can be set as target-subframe by user equipment. Optionally, reference signal configuration information corresponding to CSI Process can indicate reference signal take subframe for subframe 1,6, 11 and 16, then user equipment above-mentioned subframe can be set as target-subframe.

When reference signal configuration information corresponding to CSI Process is configures 1, CSI-RS and CSI-IM cycle are 5ms, CSI-RS skew are 2ms, and CSI-IM skew is 4ms, then user equipment can determine by subframe 2,4,7,9,12, 14th, 17 and 19 reference signal is transmitted, above-mentioned subframe can be set as target-subframe by user equipment.Optionally, CSI Reference signal configuration information corresponding to Process can indicate that the subframe that reference signal takes is subframe 2,4,7,9,12,14,17 And 19, then user equipment above-mentioned subframe can be set as target-subframe.

When reference signal configuration information corresponding to CSI Process is configures 2, CSI-RS cycle is 5ms, CSI-IM Cycle be 10ms, CSI-RS skew is 2ms, and CSI-IM skew is 0ms, then user equipment can determine by subframe 0, 2nd, 7,10,12 and 17 reference signal is transmitted, above-mentioned subframe can be set as target-subframe by user equipment.Optionally, CSI Reference signal configuration information corresponding to Process can indicate subframe that reference signal takes for subframe 0,2,7,10,12 and 17, then user equipment above-mentioned subframe can be set as target-subframe.

S102, according to default time interval and preset rules, the target each accounted for respectively from multiple reference signals Effective subframe is determined in subframe.

User equipment can be according to default time interval, in the target-subframe each accounted for respectively from multiple reference signals It is determined that effective subframe, wherein, the time interval between two corresponding with any reference signal adjacent effectively subframes is not less than pre- If time interval.

Preferably, default time interval can be 5ms.Wherein the default time interval is CSI reliability and answered Optimum value of the miscellaneous degree after balance.CSI-RS and CSI-IM cycle can be 5ms, 10ms, 20ms, 40ms and 80ms, Then the CSI-RS and CSI-IM most short cycle is 5ms.When default time interval is less than 5ms, transmitted in effective subframe Reference signal includes the reference signal in each cycle, and CSI reliability is higher, but calculative CSI is still more, it is impossible to has Effect solves CSI computation complexity.When default time interval is more than 5ms, it is necessary to which the CSI calculated is substantially reduced, but effectively The reference signal transmitted in subframe may only include the reference signal of partial periodicity, and CSI reliability is relatively low, then the default time It is the optimum value of CSI reliability and complexity after balance at intervals of 5ms.It is pointed out that in the embodiment of the present invention Default time interval is including but not limited to 5ms, for example, in following communication system, CSI-RS and CSI-IM most short week Phase is 10ms, then user equipment needs to weigh CSI reliability and complexity, to determine time interval.

In an alternative embodiment, preset rules can be：

(1) when CSI-RS in reference signal and CSI-IM cycle phase is same, and offsets identical, user equipment can determine First target-subframe corresponding with reference signal is the 1st effective subframe, and in (n-1)th effective subframe corresponding to reference signal In target-subframe afterwards, it is determined that the time interval between (n-1)th effective subframe is minimum and not less than between the default time Every a target-subframe be n-th of effective subframe.CSI-RS and CSI-IM skew is identical, i.e., first transmission CSI-RS mesh Mark the time interval between subframe and subframe 0, the time interval phase between first transmission CSI-IM target-subframe and subframe 0 Together.Wherein, n is the positive integer more than 1.

By taking the structural representation of the resource grid shown in Fig. 2 as an example, when reference signal configuration information corresponding to CSI Process During for setting to 0, CSI-RS and CSI-IM cycle is that 5ms, CSI-RS and CSI-IM skew are 1ms, then user equipment It can determine that the cycle phase of CSI-RS and CSI-IM in reference signal corresponding to CSI Process is same, and in the reference signal CSI-RS and CSI-IM skew is identical, i.e., subframe 1,6,11,16 in transmit CSI-RS and CSI-IM, subframe 1,6,11 with And 16 be target-subframe.User equipment can determine that subframe 1 is the 1st effective subframe, wherein default time interval is 5ms, User equipment can be in the target-subframe after the 1st effective subframe, it is determined that the time interval between the 1st effective subframe Target-subframe not less than default time interval is subframe 6,11 and 16, and then is determined and the in subframe 6,11 and 16 The most short target-subframe of time interval between 1 effective subframe is subframe 6, i.e., subframe 6 is the 2nd effective subframe.Similarly, use Family equipment can be in the target-subframe after the 2nd effective subframe, it is determined that the time interval between the 2nd effective subframe is not Target-subframe less than default time interval is subframe 11 and 16, and then determines have with the 2nd in subframe 11 and 16 The most short target-subframe of time interval imitated between subframe is subframe 11, i.e., subframe 11 is the 3rd effective subframe.Similarly, user Equipment can be in the target-subframe after the 3rd effective subframe, it is determined that the time interval between the 3rd effective subframe is not small It is subframe 16 in the target-subframe of default time interval, then user equipment can determine that subframe 16 is the 4th effective subframe. That is effective subframe is subframe 1,6,11 and 16, wherein the reference signal transmitted in effective subframe can be found in Fig. 2 and configure Grey parts corresponding to 0.

(2) it is different when the cycle of CSI-RS and CSI-IM in reference signal, or, CSI-RS and CSI-IM in reference signal Cycle phase with but skew it is different when, obtain first transmission CSI-RS corresponding with reference signal target-subframe, and with ginseng Examine the target-subframe of first transmission CSI-IM corresponding to signal.

If first transmission CSI-RS target-subframe is located at before first transmission CSI-IM target-subframe, it is determined that first The target-subframe for transmitting CSI-IM is the 1st effective subframe.

In the target-subframe after (n-1)th corresponding to reference signal effective subframe, it is determined that with (n-1)th effective subframe Between time interval it is minimum and a target-subframe not less than default time interval is n-th of effective subframe.Wherein, n For the positive integer more than 1.

By taking the structural representation of the resource grid shown in Fig. 2 as an example, when reference signal configuration information corresponding to CSI Process During to configure 1, CSI-RS and CSI-IM cycle are 5ms, and CSI-RS skew is 2ms, and CSI-IM skew is 4ms, then User equipment can determine that target-subframe is subframe 2,4,7,9,12,14,17 and 19.User equipment can determine CSI CSI-RS and CSI-IM cycle phase is same in reference signal corresponding to Process but skew differs, wherein first middle transmission CSI-RS target-subframe is subframe 2, and first middle transmission CSI-IM target-subframe is subframe 4.CSI- is transmitted in subframe 2 RS, all not middle transmission of reference signals of subframe before subframe 2, user equipment can only obtain according to the CSI-RS transmitted in subframe 2 Channel estimation results H is taken, interference information P can not be obtained, also can not just calculate CSI.User equipment is according to transmitting in subframe 2 CSI-RS can obtain channel estimation results H, and interference information P can be obtained according to the CSI-IM transmitted in subframe 4, and then according to Channel estimation results H and interference information P calculate CSI, then user equipment can determine that subframe 4 is the 1st effective subframe.

Wherein, default time interval can be 5ms, and user equipment can be in target after the 1st effective subframe In frame, it is determined that time interval between the 1st effective subframe not less than the target-subframe of default time interval be subframe 9, 12nd, 14,17 and 19, and then determine that the most short target of time interval between the 1st effective subframe is sub in above-mentioned subframe Frame is subframe 9, i.e., subframe 9 is the 2nd effective subframe.Similarly, user equipment can be in target after the 2nd effective subframe In frame, it is determined that time interval between the 2nd effective subframe not less than the target-subframe of default time interval be subframe 14, 17 and 19, and then determine that the most short target of time interval between the 2nd effective subframe is sub in subframe 14,17 and 19 Frame is subframe 14, i.e., subframe 14 is the 3rd effective subframe.Similarly, user equipment can be in the target after the 3rd effective subframe In subframe, it is determined that the time interval between the 3rd effective subframe is subframe not less than the target-subframe of default time interval 19, then user equipment can determine that subframe 19 is the 4th effective subframe.That is, effectively subframe be subframe 4,9,14 and 19, wherein the reference signal transmitted in effective subframe can be found in grey parts corresponding to configuration 1 in Fig. 2.

(3) it is different when the cycle of CSI-RS and CSI-IM in reference signal, or, CSI-RS and CSI-IM in reference signal Cycle phase with but skew it is different when, obtain first transmission CSI-RS corresponding with reference signal target-subframe, and with ginseng Examine the target-subframe of first transmission CSI-IM corresponding to signal；

If first transmission CSI-RS target-subframe is located at after first transmission CSI-IM target-subframe, it is determined that first The target-subframe for transmitting CSI-RS is the 1st effective subframe；

In the target-subframe after (n-1)th corresponding to reference signal effective subframe, it is determined that with (n-1)th effective subframe Between time interval it is minimum and a target-subframe not less than default time interval is n-th of effective subframe；

Wherein, n is the positive integer more than 1.

By taking the structural representation of the resource grid shown in Fig. 2 as an example, when reference signal configuration information corresponding to CSI Process During to configure 2, CSI-RS cycle is 5ms, and CSI-IM cycle is 10ms, and CSI-RS skew is 2ms, CSI-IM skew For 0ms, then user equipment can determine that target-subframe is subframe 0,2,7,10,12 and 17, and user equipment can determine CSI CSI-RS and CSI-IM cycle and skew differ in reference signal corresponding to Process.Wherein, first middle transmission CSI- RS target-subframe is subframe 2, and first middle transmission CSI-IM target-subframe is subframe 0, and CSI-IM is transmitted in subframe 0, is used Family equipment can only obtain interference information P according to the CSI-IM transmitted in subframe 0, channel estimation results H can not be obtained, also with regard to nothing Method calculates CSI.User equipment can obtain interference information P according to the CSI-IM transmitted in subframe 0, be transmitted according in subframe 2 CSI-RS can obtain channel estimation results H, then user equipment can determine that subframe 2 is the 1st effective subframe.

Wherein default time interval can be 5ms, and user equipment can be in the target-subframe after the 1st effective subframe In, it is determined that time interval between the 1st effective subframe not less than the target-subframe of default time interval is subframe 7,10, 12 and 17, and then determine that the most short target-subframe of the time interval between the 1st effective subframe be son in above-mentioned subframe Frame 7, i.e. subframe 7 are the 2nd effective subframe.Similarly, user equipment can in the target-subframe after the 2nd effective subframe, It is determined that time interval between the 2nd effective subframe not less than default time interval target-subframe for subframe 12 and 17, and then determine that the most short target-subframe of time interval between the 2nd effective subframe is subframe 12 in above-mentioned subframe, i.e., Subframe 12 is the 3rd effective subframe.Similarly, user equipment can in the target-subframe after the 3rd effective subframe, it is determined that with The target-subframe that time interval between 3rd effective subframe is not less than default time interval is subframe 17, then user equipment It is the 4th effective subframe that subframe 17, which can be determined,.That is, effectively subframe is subframe 2,7,12 and 17, wherein effectively son The reference signal transmitted in frame can be found in grey parts corresponding to configuration 2 in Fig. 2.

S103, the reference signal transmitted in effective subframe is each corresponded to according to multiple reference signals respectively, calculates multiple letters Each self-corresponding channel condition information of channel state information process.

User equipment can each correspond to the reference signal transmitted in effective subframe according to multiple reference signals, calculate multiple Each self-corresponding CSI of CSI Process.

In an alternative embodiment, CSI-RS and CSI- is included when reference signal corresponds to the reference signal transmitted in effective subframe During IM, according to the CSI-RS and CSI-IM transmitted in effective subframe, CSI corresponding to calculating.For example, when CSI Process are corresponding Reference signal configuration information when being with setting to 0, user equipment can be according to the CSI-RS and CSI-IM transmitted in subframe 1, respectively Channel estimation results H and interference information P is obtained, and CSI Process couple are calculated according to channel estimation results H and interference information P The CSI answered.

In an alternative embodiment, when reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS, root According to the CSI-IM, CSI corresponding to calculating transmitted recently before the CSI-RS and effective subframe transmitted in effective subframe.For example, work as When reference signal configuration information corresponding to CSI Process is configures 2, user equipment can be according to the CSI- transmitted in subframe 2 RS obtains channel estimation results H, according to the CSI-IM transmitted in the target-subframe for transmitting CSI-IM before subframe 2 recently, i.e., sub The CSI-IM transmitted in frame 0 obtains interference information P, and calculates CSI Process according to channel estimation results H and interference information P Corresponding CSI.And for example, user equipment can obtain channel estimation results H according to the CSI-RS transmitted in subframe 7, according to subframe 7 The CSI-IM transmitted recently in transmission CSI-IM target-subframe before, i.e., the CSI-IM transmitted in subframe 0 obtain interference information P, and the CSI according to corresponding to channel estimation results H and interference information P calculates CSI Process.And for example, user equipment can root Channel estimation results H is obtained according to the CSI-RS transmitted in subframe 12, according to transmission CSI-IM target is sub recently before subframe 12 The CSI-IM transmitted in the CSI-IM transmitted in frame, i.e. subframe 10 obtains interference information P, and according to channel estimation results H and does Disturb information P and calculate CSI corresponding to CSI Process.

In an alternative embodiment, when reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-IM, root According to the CSI-RS, CSI corresponding to calculating transmitted recently before the CSI-IM and effective subframe transmitted in effective subframe.For example, work as When reference signal configuration information corresponding to CSI Process is configures 1, user equipment can be according to the CSI- transmitted in subframe 4 IM obtains interference information P, transmits the CSI-RS transmitted in CSI-RS target-subframe recently before according to subframe 4, i.e., in subframe 2 The CSI-RS of transmission obtains channel estimation results H, and calculates CSI Process couple according to channel estimation results H and interference information P The CSI answered.And for example, user equipment can obtain interference information P according to the CSI-IM that is transmitted in subframe 9, according to before subframe 9 most The CSI-RS transmitted in nearly transmission CSI-RS target-subframe, i.e., the CSI-RS transmitted in subframe 7 obtain channel estimation results H, And the CSI according to corresponding to channel estimation results H and interference information P calculates CSI Process.

S104, give each self-corresponding information feedback of multiple channel condition information processes to net side equipment.

User equipment can give each self-corresponding CSI feedbacks of multiple CSI Process to net side equipment.For example, user sets For it can calculate CSI corresponding to CSI Process after, the CSI is sent to net side equipment.Optionally, user equipment can be counted After calculating multiple CSI corresponding to CSI Process, average value will be obtained after the multiple CSI being calculated filtering, and then to net side Equipment sends the average value.

In the method for existing reporting status information of channel, the target-subframe for transmitting reference signal is required to calculate CSI, meter It is higher to calculate complexity, the only effective subframe of the embodiment of the present invention needs to calculate CSI.For example, referred to corresponding to target CSI Process Signal configuration information for configuration 1 when, target-subframe be subframe 2,4,7,9,12,14,17 and 19, effective subframe be subframe 4,9, 14 and 19, that is to say, that the method for existing reporting status information of channel needs to calculate 8 CSI, and the embodiment of the present invention can be In the case of not influenceing CSI reliabilities, 4 CSI are only calculated, CSI, which calculates density, reduces one times, can effectively reduce CSI meter Calculate complexity.

In the method for the reporting status information of channel shown in Fig. 1, receive net side equipment and distinguish for multiple CSI Process Multiple reference signals of configuration, according to default time interval and preset rules, each account for using from multiple reference signals respectively Target-subframe in determine effective subframe, each corresponded to according to multiple reference signals respectively transmitted in effective subframe reference letter Number, each self-corresponding CSI of multiple CSI Process are calculated, by each self-corresponding CSI feedbacks of multiple CSI Process to net side Equipment, can reduce the computation complexity of channel condition information, and reduce hardware cost.

Fig. 3 is referred to, Fig. 3 is a kind of stream of the method for the reporting status information of channel provided in second embodiment of the invention Journey schematic diagram, as shown in the figure the method for the reporting status information of channel in the embodiment of the present invention can at least include：

S301, it is multiple reference signals that multiple channel condition information processes are respectively configured to receive net side equipment.

S302, according to default time interval and preset rules, the target each accounted for respectively from multiple reference signals Effective subframe is determined in subframe.

In an alternative embodiment, preset rules can be：

Wherein, n is the positive integer more than 1.

S303, it is determined that the channel being calculated according to the reference signal of the previous effectively sub-frame transmission of the currently active subframe Status information belongs to the first channel condition information set or second channel set of state information.

In heterogeneous network (Heterogeneous Network, abbreviation HetNet) scene, net side equipment can include grand Stand and micro- station, wherein macro station transmission power is larger, and micro- station transmission power is smaller, cause the reference signal transmitted in the subframe of part by The interference arrived is larger, and being interfered for the reference signal transmitted in the subframe of part is smaller, and the interference got according to CSI-IM is believed Breath P will be affected, and the channel quality being calculated indicates the accurate of (Channel Quality Indicator, abbreviation CQI) Spend relatively low.In order to solve the above-mentioned technical problem, net side equipment, which can distribute any reference signal and correspond to target-subframe, is belonging respectively to First CSI gathers and the 2nd CSI set, wherein the interference of different CSI set is different.For example, subframe 0~9 be subject to it is dry Disturb it is larger, the CSI collection belonging to subframe 0~9 be combined into the first CSI set, the interference that subframe 10~19 is subject to is smaller, subframe 10~19 Affiliated CSI collection is combined into the 2nd CSI set.

Wherein, heterogeneous network is the computer produced by different manufacturers, what the network equipment and system formed, most of feelings Operated under condition in different agreements and support different functions or application.Isomery refers to that two or more wireless communication systems is adopted With different access technologies, or using identical wireless access technology but belong to different cellular carriers.Heterogeneous network Network utilizes existing various wireless communication system, by way of being merged between system, make to learn from other's strong points to offset one's weaknesses between multisystem, can be comprehensive Close and play respective advantage.

Specifically, after user equipment determines effective subframe, it can be determined that reference signal, which is corresponded in the currently active subframe, is It is no to transmit CSI-IM, when not transmitting CSI-IM in the currently active subframe, it is determined that being had according to the previous of the currently active subframe The CSI that the reference signal of effect sub-frame transmission is calculated belongs to the first CSI set or the 2nd CSI set.

By taking the structural representation of the resource grid shown in Fig. 2 as an example, any reference signal corresponds to target-subframe and is belonging respectively to One CSI gathers and the 2nd CSI set, the currently active when reference signal configuration information corresponding to CSI Process is configures 2 Subframe is subframe 7, and user equipment is determined not transmit CSI-IM in subframe 7, and user equipment can be determined according to the currently active subframe The CSI that is calculated of reference signal of previous effectively sub-frame transmission belong to the first CSI set or the 2nd CSI set.

In an alternative embodiment, after user equipment determines effective subframe, it can be determined that reference signal corresponds to the currently active Whether CSI-IM is transmitted in subframe, when reference signal, which corresponds to, transmits CSI-IM in the currently active subframe, according to reference to letter The reference signal transmitted in the currently active subframe corresponding to number, calculate the CSI of the CSI set belonging to the currently active subframe.For example, When transmitting CSI-IM in the currently active subframe, user equipment can obtain the currently active subframe pair according to channel set information The CSI set identification information answered, wherein channel set information can include CSI set identifications information, root corresponding to each subframe According to CSI set identifications information corresponding to the currently active subframe, determine that CSI corresponding to the currently active subframe gathers, and then according to working as The reference signal transmitted in preceding effectively subframe, calculate the CSI of the CSI set belonging to the currently active subframe.

By taking the structural representation of the resource grid shown in Fig. 2 as an example, any reference signal corresponds to target-subframe and is belonging respectively to One CSI gathers and the 2nd CSI set, the currently active when reference signal configuration information corresponding to CSI Process is with setting to 0 Subframe is subframe 1, and user equipment determines to transmit CSI-IM in subframe 1, and user equipment can be according to the reference transmitted in subframe 1 Signal, calculate the CSI of the CSI set belonging to subframe 1.For example, when the CSI collection belonging to determination subframe 1 is combined into the first CSI set When, user equipment according to the reference signal transmitted in subframe 1, can calculate the CSI of the first CSI set.When it is determined that the correspondence of subframe 1 CSI collection be combined into the 2nd CSI set when, user equipment can according to the reference signal transmitted in subframe 1, calculate the 2nd CSI collection The CSI of conjunction.

S304, according to the reference signal transmitted in the currently active subframe, calculate with previous channel condition information belonging to The channel condition information of the different channel condition information set of channel condition information set.

User equipment determines what is be calculated according to the reference signal of the previous effectively sub-frame transmission of the currently active subframe CSI belongs to after the first CSI set or the 2nd CSI set, can be counted according to the reference signal transmitted in the currently active subframe Calculate the CSI of the CSI set different from the CSI set belonging to previous CSI.Using the structural representation of the resource grid shown in Fig. 2 as Example, any reference signal correspond to target-subframe and are belonging respectively to the first CSI set and the 2nd CSI set, when CSI Process are corresponding Reference signal configuration information for configuration 2 when, the currently active subframe is subframe 7, and CSI-IM, user equipment are not transmitted in subframe 7 It can determine to belong to the first CSI according to the CSI that the reference signal transmitted in first effective subframe before subframe 7 is calculated Set or the 2nd CSI set, and then according to the reference signal transmitted in subframe 7, calculate the 2nd CSI set corresponding to subframe 7 CSI.Such as, however, it is determined that first effective subframe before subframe 7, i.e., CSI is the CSI of CSI set 0 corresponding to subframe 2, then User equipment can calculate the CSI collection different from the CSI set belonging to previous CSI according to the reference signal transmitted in subframe 7 The CSI of conjunction.When it is determined that first effective subframe before subframe 7, i.e., the CSI that the reference signal transmitted in subframe 2 is calculated When belonging to the first CSI set, user equipment according to the reference signal transmitted in subframe 7, can calculate the CSI of the 2nd CSI set； When the CSI being calculated according to the reference signal transmitted in subframe 2 belongs to the 2nd CSI set, user equipment can be according to son The reference signal transmitted in frame 7, calculate the CSI of the first CSI set.

S305, give each self-corresponding information feedback of multiple channel condition information processes to net side equipment.

In the method for the reporting status information of channel shown in Fig. 3, receive net side equipment and distinguish for multiple CSI Process Multiple reference signals of configuration, according to default time interval and preset rules, each account for using from multiple reference signals respectively Target-subframe in determine effective subframe, when reference signal, which corresponds to, does not transmit CSI-IM in the currently active subframe, it is determined that basis The CSI that is calculated of reference signal of the previous effectively sub-frame transmission of the currently active subframe belongs to the first CSI set or the Two CSI gather, and according to the reference signal transmitted in the currently active subframe, calculate different from the CSI set belonging to previous CSI The CSI of CSI set, and give each self-corresponding CSI feedbacks of multiple CSI Process to net side equipment, it can be ensured that in heterogeneous network Under scene, CSI computation complexity is reduced, and reduces hardware cost, while the calculating of the first CSI set and the 2nd CSI set Number is more balanced.

Fig. 4 is referred to, Fig. 4 is a kind of stream of the method for the reporting status information of channel provided in third embodiment of the invention Journey schematic diagram, as shown in the figure the method for the reporting status information of channel in the embodiment of the present invention can at least include:

S401, it is multiple reference signals that multiple channel condition information processes are respectively configured to receive net side equipment.

S402, according to default time interval and preset rules, the target each accounted for respectively from multiple reference signals Effective subframe is determined in subframe.

In an alternative embodiment, preset rules can be：

If first transmission CSI-RS target-subframe is located at before first transmission CSI-IM target-subframe, it is determined that first The target-subframe for transmitting CSI-IM is the 1st effective subframe；

Wherein, n is the positive integer more than 1.

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

User equipment may determine that whether the quantity of current channel condition information to be calculated is more than predetermined number threshold value.When Judged result is when being, further to perform step S404；When judged result is no, according to corresponding to current CSI to be calculated CSI Process each correspond to the reference signal transmitted in effective subframe, CSI corresponding to calculating.

In an alternative embodiment, when user equipment is operated in CA states, if variable number is 2, each serving cell is most 4 CSI Processe can be configured more, that is, user equipment needs to calculate CSI corresponding to 8 CSI Process, for Each serving cell, each default time interval be 5ms effectively between subframe, and 8 kinds of CSI of calculating are at most needed in 5ms CSI corresponding to Process, user equipment each subframe support calculate 2 CSI Process corresponding to CSI, institute can be completed The CSI for having CSI Process is calculated.Predetermined number threshold value can be set as 2 by user equipment, i.e., at most calculated in each subframe CSI corresponding to 2 CSI Process, in the case where not influenceing CSI reliabilities, it can effectively reduce CSI computation complexity. It is pointed out that the predetermined number threshold value in the embodiment of the present invention, including but not limited to 2, research staff can combine difference Scene is changed accordingly, is not limited by the embodiment of the present invention specifically.

S404, determine to meet predetermined number threshold value in channel condition information process corresponding to multiple channel condition informations Destination channel status information process.

User equipment can determine the target CSI for meeting predetermined number threshold value in CSI Process corresponding to CSI Process。

In an alternative embodiment, the priority that user equipment can number according to each CSI Process process, it is determined that Meet the target CSI Process of predetermined number threshold value.For example, net side equipment to user device configuration 2 CSI Process, respectively CSI Process1 and CSI Process2, user equipment can entering according to each CSI Process The priority of journey numbering, obtains each CSI Process priority, and wherein CSI Process1 priority is higher than CSI Process2, when predetermined number threshold value is 1, the target CSI Process for meeting predetermined number threshold value can be CSI Process1。

In an alternative embodiment, the priority that user equipment can number according to each CSI Process process, and The priority of the serving cell numbering of serving cell corresponding to the priority identical CSI Process of process numbering, it is determined that full The target CSI Process of sufficient predetermined number threshold value.For example, user equipment is operated in CA states, variable number is 2, net side Equipment is configured with 2 CSI Process, respectively CSI Process1 and CSI Process2 to first serving cell CC1, Net side equipment returns second serving cell CC2 and is configured with 2 CSI Process, respectively CSI Process1 and CSI Process2.The priority that user equipment can number according to above-mentioned 4 CSI Process process, obtains each CSI CSI Process2 and CC2 of the CSI Process1 of Process priority, the wherein CC1 priority higher than CC1 CSI CSI Process2 and CC2 of Process2, CC2 CSI the Process1 priority higher than CC1 CSI Process2.Enter And the priority that user equipment can number according to the serving cell of serving cell, obtain the priority identical that process is numbered CSI Process priority.Such as user equipment according to the priority of serving cell numbering, can determine CC1 CSI CSI Process1, CC1 of the Process1 priority higher than CC2 CSI Process2 priority are higher than CC2 CSI Process2.When predetermined number threshold value is 2, the target CSI Process for meeting predetermined number threshold value can be CC1 CSI Process1 and CC2 CSI Process1.

In an alternative embodiment, detect that services of the CSI Process corresponding to multiple CSI including unicast pattern is small During the CSI Process in area, the CSI Process of the serving cell of unicast pattern highest priority is determined.For example, with Family equipment is operated in CA states, and variable number is 2, and first serving cell CC1 transmission mode is unicast pattern, i.e., Non- CoMP patterns, net side equipment are configured with 2 CSI Process, respectively CSI Process1 to second serving cell CC2 With CSI Process2, wherein CC1 CSI Process priority is higher than CC2 CSI Process1 and CSI Process2.When predetermined number threshold value is 2, the target CSI Process for meeting predetermined number threshold value can be CC1 CSI Process and CC2 CSI Process1.

Further alternative, either objective subframe corresponding to the CSI Process of the serving cell of unicast pattern is Effective subframe, the reference signal transmitted in either objective subframe for the unicast pattern serving cell specifically with reference to letter Number.

S405, the reference signal transmitted in effective subframe, calculating pair are each corresponded to according to destination channel status information process The channel condition information answered.

User equipment can each correspond to the reference signal transmitted in effective subframe according to target CSI Process, calculate Corresponding CSI.

In an alternative embodiment, CSI-RS and CSI- is included when reference signal corresponds to the reference signal transmitted in effective subframe During IM, according to the CSI-RS and CSI-IM transmitted in effective subframe, CSI corresponding to calculating.

In an alternative embodiment, when reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS, root According to the CSI-IM, CSI corresponding to calculating transmitted recently before the CSI-RS and effective subframe transmitted in effective subframe.

In an alternative embodiment, when reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-IM, root According to the CSI-RS, CSI corresponding to calculating transmitted recently before the CSI-IM and effective subframe transmitted in effective subframe.

S406, the reference signal transmitted in effective subframe is each corresponded to according to other channel condition information processes, described Channel condition information corresponding to specified target-subframe calculating after effective subframe.

User equipment can other CSI Process be each in the CSI Process according to corresponding to current CSI to be calculated The reference signal transmitted in corresponding effective subframe, channel status letter corresponding to the specified target-subframe calculating after effective subframe Breath.

Specifically, in descending CoMP system, net side equipment can give a serving cell to configure most 4 CSI Process.In CA scenes, the carrier wave that can have multiple serving cells is polymerize.Shown with the structure of the resource grid shown in Fig. 5 Exemplified by intention, user equipment is operated in CA states, and variable number is 3, and wherein first service cell CC0 transmission mode is non- CoMP patterns, i.e. unicast pattern；Second service cell CC1 transmission mode is CoMP patterns, and net side equipment configures to CC1 2 CSI Process；3rd serving cell CC2 transmission mode is CoMP patterns, and net side equipment is configured with 2 to CC2 CSI Process。

Transmitted in the serving cell of non-CoMP patterns a corresponding CSI Process, the CSI Process in each subframe Reference signal, each subframe are required for calculating CSI, it is determined that in CSI Process corresponding to the serving cell of non-CoMP patterns Each subframe is effective subframe, and wherein reference signal can be the specific reference signal of serving cell of non-CoMP patterns (Cell-Specific Reference Signal, abbreviation CRS).CSI corresponding to the serving cell of wherein non-CoMP patterns Priority of the Process priority higher than CSI Process corresponding to the serving cell of CoMP patterns.As shown in figure 5, user Equipment can determine that subframe 0~19 is effective subframe, wherein the reference signal transmitted in effective subframe can be found in CC0 in Fig. 5 Corresponding grey parts.

Net side equipment is configured with 2 CSI Process to the serving cell CC1 of CoMP patterns, and then gives CSI Process1 is configured with CSI-RS1 and CSI-IM1, and user equipment can determine that effective subframe includes subframe 4,9,14 And 19, wherein the reference signal transmitted in effective subframe can be found in grey portion corresponding to the CSI Process1 of CC1 in Fig. 5 Point.Net side equipment is configured with CSI-RS2 and CSI-IM2 to CSI Process2, and user equipment can determine effectively Subframe includes subframe 4,9,14 and 19, wherein the reference signal transmitted in effective subframe can be found in the CSI of CC1 in Fig. 5 Grey parts corresponding to Process2.

Net side equipment is configured with 2 CSI Process to the serving cell CC2 of CoMP patterns, and then gives CSI Process1 is configured with CSI-RS1 and CSI-IM1, and user equipment can determine that effective subframe includes subframe 2,7,12 And 17, wherein the reference signal transmitted in effective subframe can be found in grey portion corresponding to the CSI Process1 of CC2 in Fig. 5 Point.Net side equipment is configured with CSI-RS2 and CSI-IM2 to CSI Process2, and user equipment can determine effectively Subframe includes subframe 4,9,14 and 19, wherein the reference signal transmitted in effective subframe can be found in the CSI of CC2 in Fig. 5 Grey parts corresponding to Process2.

In the structural representation of the resource grid shown in Fig. 5, when predetermined number threshold value is 2, subframe 2 is current to be calculated CSI Process corresponding to CSI include CC0 CSI Process and CC2 CSI Process1, and user equipment can determine Current CSI to be calculated quantity is equal to predetermined number threshold value, and then the CSI according to corresponding to current CSI to be calculated Process each corresponds to the reference signal transmitted in effective subframe, CSI corresponding to calculating.

In the structural representation of the resource grid shown in Fig. 5, when predetermined number threshold value is 2, subframe 4 is current to be calculated CSI Process corresponding to CSI include CC0 CSI Process, CC1 CSI Process1, CC1 CSI Process2 And CC2 CSI Process2, user equipment can determine that current CSI to be calculated quantity is more than predetermined number threshold value. User equipment can determine that multiple CSI Process are arranged as from high to low according to priority：CC0 CSI Process, CC1 CSI Process1, CC1 CSI Process2 and CC2 CSI Process2, meet the target of predetermined number threshold value CSI Process include CC0 CSI Process and CC1 CSI Process1, and other CSI Process include CC1's CSI Process2 and CC2 CSI Process2.

The reference signal that user equipment can be transmitted in the subframe 4 according to corresponding to CC0 CSI Process, calculates CC0's The reference signal transmitted in CSI corresponding to CSI Process, and the subframe 4 according to corresponding to CC1 CSI Process1, meter Calculate CSI corresponding to CC1 CSI Process1.

Further, CSI Process corresponding to the current CSI to be calculated of subframe 5 include other CSI in subframe 4 CSI Process bags corresponding to the current CSI to be calculated of CC0 CSI Process in Process and subframe 5, i.e. subframe 5 Include CC0 CSI Process, CC1 CSI Process2 and CC2 CSI Process2, user equipment can be according to CC0 CSI Process correspond to the reference signal transmitted in subframe 5, calculate CSI corresponding to CC0 CSI Process, and according to CC1 CSI Process2 correspond to the reference signal transmitted in subframe 4, calculate CSI corresponding to CC1 CSI Process2.

Further, CSI Process corresponding to the current CSI to be calculated of subframe 6 include the CSI of the CC2 in subframe 4 CSI Process bags corresponding to the current CSI to be calculated of CC0 CSI Process in Process2 and subframe 6, i.e. subframe 6 CC0 CSI Process and CC2 CSI Process2 are included, user equipment can be corresponding according to CC0 CSI Process The reference signal transmitted in subframe 6, calculate CSI corresponding to CC0 CSI Process, and the CSI Process2 according to CC2 The reference signal transmitted in corresponding subframe 4, calculates CSI corresponding to CC2 CSI Process2.

In prior art scheme, user equipment needs to calculate CSI corresponding to 4 CSI Process, the present invention in subframe 4 Embodiment passes through time division multiplexing, it can be ensured that each subframe at most calculates 2 CSI, effectively reduces CSI computation complexity.

S407, give each self-corresponding information feedback of multiple channel condition information processes to net side equipment.

In the method for the reporting status information of channel shown in Fig. 4, receive net side equipment and distinguish for multiple CSI Process Multiple reference signals of configuration, according to default time interval and preset rules, each account for using from multiple reference signals respectively Target-subframe in determine effective subframe, when judging that current CSI to be calculated quantity is more than predetermined number threshold value, multiple The target CSI Process for meeting predetermined number threshold value are determined in CSI Process corresponding to CSI, according to target CSI Process each corresponds to the reference signal transmitted in effective subframe, CSI corresponding to calculating, according to other CSI Process each The reference signal transmitted in corresponding effective subframe, the specified target-subframe after the effectively subframe calculate corresponding to CSI, will Multiple each self-corresponding CSI feedbacks of CSI Process give net side equipment, when the embodiment of the present invention can be carried out between effective subframe Divide multiplexing, effectively reduce the computation complexity of channel condition information, and reduce hardware cost.

Fig. 6 is referred to, Fig. 6 is a kind of structural representation of the user equipment provided in first embodiment of the invention, wherein User equipment provided in an embodiment of the present invention is corresponding with the method shown in Fig. 1, may operate in the reporting channel shape shown in Fig. 1 In the executive agent of the method for state information, the user equipment in the embodiment of the present invention can at least include receiving unit as shown in the figure 601st, determining unit 602, computing unit 603 and feedback unit 604, wherein：

Receiving unit 601, it is multiple reference signals that multiple CSI Process are respectively configured for receiving net side equipment, The multiple reference signal corresponds with the multiple CSI Process, wherein, each reference signal includes periodically sending CSI-RS and CSI-IM, and the subframe that each reference signal takes in transmission is target-subframe, is passed in either objective subframe Defeated signal is at least one in the CSI-RS and the CSI-IM.

Determining unit 602, for according to default time interval and preset rules, respectively from the multiple reference signal Effective subframe is determined in the target-subframe each accounted for, wherein, two corresponding with any reference signal it is adjacent effectively subframe it Between time interval be not less than the default time interval.

Computing unit 603, for each corresponding to the reference transmitted in effective subframe according to the multiple reference signal respectively Signal, calculate each self-corresponding CSI of the multiple CSI Process.

Feedback unit 604, for giving each self-corresponding CSI feedbacks of the multiple CSI Process to the net side equipment.

As an alternative embodiment, preset rules can include：

When the cycle phase of CSI-RS and CSI-IM in the reference signal is same, and when offseting identical, it is determined that with the reference First target-subframe corresponding to signal is the 1st effective subframe, and (n-1)th corresponding to the reference signal effective subframe it In target-subframe afterwards, it is determined that the time interval between (n-1)th effective subframe is minimum and not less than described default One target-subframe of time interval is n-th of effective subframe.Or

Wherein, n is the positive integer more than 1.

As an alternative embodiment, any reference signal, which corresponds to target-subframe, is belonging respectively to the first CSI collection Close and the 2nd CSI gathers, then

Computing unit 603, for when the reference signal corresponds to and do not transmit CSI-IM in the currently active subframe, determining root The CSI being calculated according to the reference signal of the previous effectively sub-frame transmission of the currently active subframe belongs to the first CSI set Or the 2nd CSI set, and according to the reference signal transmitted in the currently active subframe, calculate with previous CSI belonging to CSI gathers the CSI of different CSI set.

Computing unit 603, it is additionally operable to when the reference signal corresponds to and transmits CSI-IM in the currently active subframe, according to The reference signal transmitted in the currently active subframe corresponding to the reference signal, calculate belonging to the currently active subframe The CSI of CSI set.

As an alternative embodiment, the user equipment in the embodiment of the present invention can also include：

Judging unit 605, it is each corresponding effectively sub according to the multiple reference signal respectively for the computing unit 603 The reference signal transmitted in frame, before calculating each self-corresponding CSI of the multiple CSI Process, judge current to be calculated Whether CSI quantity is more than predetermined number threshold value.

Determining unit 602, it is additionally operable to when the judged result of judging unit 605 is to be, corresponding to the multiple CSI The target CSI Process for meeting the predetermined number threshold value are determined in CSI Process.

The computing unit 603, it is additionally operable to each correspond to what is transmitted in effective subframe according to the target CSI Process Reference signal, CSI corresponding to calculating, and other CSI Process are each in the CSI Process according to corresponding to the multiple CSI The reference signal transmitted from corresponding effective subframe, the specified target-subframe after the effectively subframe calculate corresponding to CSI.

The computing unit 603, it is additionally operable to when the judged result of judging unit 605 is no, it is corresponding according to the CSI CSI Process each correspond to the reference signal transmitted in effective subframe, CSI corresponding to calculating.

As an alternative embodiment, determining unit 602, for according to each self-corresponding CSI of the multiple CSI The priority of Process process numbering, it is determined that meeting the target CSI Process of the predetermined number threshold value.

As an alternative embodiment, the determining unit 602, for each self-corresponding according to the multiple CSI The priority of CSI Process process numbering, and serviced corresponding to the priority identical CSI Process of process numbering The priority of the serving cell numbering of cell, it is determined that meeting the target CSI Process of the predetermined number threshold value.

As an alternative embodiment, determining unit 602, for detecting CSI corresponding to the multiple CSI When Process includes the CSI Process of the serving cell of unicast pattern, determine that the service of the unicast pattern is small The CSI Process in area highest priority.

As an alternative embodiment, corresponding to the CSI Process of the serving cell of the unicast pattern Either objective subframe is effective subframe, and the reference signal transmitted in the either objective subframe is the clothes of the unicast pattern The business specific reference signal of cell.

As an alternative embodiment, determining unit 602, be additionally operable to the computing unit 603 according to it is described other CSI Process each correspond to the reference signal transmitted in effective subframe, and the given sub-frame after the effectively subframe calculates Before corresponding CSI, it is determined that the quantity in specified target-subframe CSI to be calculated is not more than the predetermined number threshold value.

As an alternative embodiment, the computing unit 603, for corresponding to effective subframe when the reference signal When the reference signal of middle transmission includes CSI-RS and CSI-IM, according to the CSI-RS and CSI-IM effectively transmitted in subframe, CSI corresponding to calculating.

Computing unit 603, it is additionally operable to include CSI- when the reference signal corresponds to the reference signal transmitted in effective subframe During RS, according to the CSI-IM transmitted recently before the CSI-RS and the effectively subframe transmitted in the effectively subframe, calculating pair The CSI answered.

Computing unit 603, it is additionally operable to include CSI- when the reference signal corresponds to the reference signal transmitted in effective subframe During IM, according to the CSI-RS transmitted recently before the CSI-IM and the effectively subframe transmitted in the effectively subframe, calculating pair The CSI answered.

In the user equipment shown in Fig. 6, it is that multiple CSI Process match somebody with somebody respectively that receiving unit 601, which receives net side equipment, The multiple reference signals put, determining unit 602 is according to default time interval and preset rules, respectively from multiple reference signals Effective subframe is determined in the target-subframe each accounted for, computing unit 603 each corresponds to effective according to multiple reference signals respectively The reference signal transmitted in subframe, calculates each self-corresponding CSI of multiple CSI Process, and feedback unit 604 is by multiple CSI Each self-corresponding CSI feedbacks of Process give net side equipment, can reduce the computation complexity of channel condition information, and reduce hardware Cost.

Fig. 7 is referred to, Fig. 7 is a kind of structural representation of the user equipment provided in second embodiment of the invention, is used for The method for performing reporting status information of channel provided in an embodiment of the present invention.As shown in fig. 7, the user equipment includes：At least one Individual processor 701, such as CPU, at least one network interface 703, memory 704, at least one communication bus 702.Communication is total Line 702 is used to realize the connection communication between these components.Wherein, memory 704 may include high-speed RAM memory, also may be used Non-labile memory (non-volatile memory), for example, at least a magnetic disk storage can also be included.Memory 704 can optionally include at least one storage device for being located remotely from aforementioned processor 701.One group is stored in memory 704 Program code, and processor 701 calls the program code stored in memory 704, for performing following operation：

The multiple reference signals being respectively configured by the reception net side equipment of network interface 703 for multiple CSI Process, institute Multiple reference signals are stated to correspond with the multiple CSI Process, wherein, each reference signal includes what is periodically sent CSI-RS and CSI-IM, and the subframe that each reference signal takes in transmission is target-subframe, is transmitted in either objective subframe Signal be the CSI-RS and the CSI-IM in it is at least one.

According to default time interval and preset rules, target each accounted for respectively from the multiple reference signal Effective subframe is determined in frame, wherein, the time interval between two corresponding with any reference signal adjacent effectively subframes is not small In the default time interval.

The reference signal transmitted in effective subframe is each corresponded to according to the multiple reference signal respectively, is calculated the multiple Each self-corresponding CSI of CSI Process.

Each self-corresponding CSI feedbacks of the multiple CSI Process are given to the net side equipment by network interface 703.

As an alternative embodiment, preset rules can include：

Wherein, n is the positive integer more than 1.

Processor 701 each corresponds to the reference signal transmitted in effective subframe according to the multiple reference signal respectively, meter Each self-corresponding CSI of the multiple CSI Process are calculated, are specifically as follows：

When the reference signal, which corresponds to, does not transmit CSI-IM in the currently active subframe, it is determined that according to the currently active son The CSI that the reference signal of the previous effectively sub-frame transmission of frame is calculated belongs to the first CSI set or the 2nd CSI set, And according to the reference signal transmitted in the currently active subframe, calculate the CSI different from the CSI set belonging to previous CSI The CSI of set.

As an alternative embodiment, processor 701 is each corresponding effective according to the multiple reference signal respectively The reference signal transmitted in subframe, before calculating each self-corresponding CSI of the multiple CSI Process, it can also carry out following Operation：

Judge whether current CSI to be calculated quantity is more than predetermined number threshold value.

When judged result is to be, determine to meet the predetermined number in CSI Process corresponding to the multiple CSI The target CSI Process of threshold value.

The reference signal transmitted in effective subframe is each corresponded to according to the target CSI Process, corresponding to calculating CSI, and other CSI Process are each corresponded to and transmitted in effective subframe in the CSI Process according to corresponding to the multiple CSI Reference signal, calculated in the specified target-subframe effectively after subframe corresponding to CSI.

As an alternative embodiment, processor 701 determines in CSI Process corresponding to the multiple CSI Meet the target CSI Process of the predetermined number threshold value, be specifically as follows：

As an alternative embodiment, processor 701 is each corresponding effectively sub according to other described CSI Process The reference signal transmitted in frame, calculated in the given sub-frame effectively after subframe corresponding to before CSI, can also carry out with Lower operation：

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS and CSI-IM, according to institute State the CSI-RS and CSI-IM transmitted in effective subframe, CSI corresponding to calculating.

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS, according to the effectively son The CSI-RS transmitted in frame the and CSI-IM, CSI corresponding to calculating transmitted recently before the effectively subframe.

Specifically, the user equipment introduced in the embodiment of the present invention can to implement the present invention combine Fig. 1, Fig. 3 and Part or all of flow in the embodiment of the method for the reporting status information of channel of Fig. 4 introductions.

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

First net side equipment 801, it is multiple for being respectively configured to the transmission of user equipment 804 for multiple CSI Process Reference signal.

User equipment 804, the multiple reference signals sent for receiving the first net side equipment 801 are the multiple with reference to letter Number with the multiple CSI Process correspond, wherein, each reference signal include periodically send CSI-RS and CSI- IM, and the subframe that each reference signal takes in transmission is target-subframe, the signal transmitted in either objective subframe is described It is at least one in CSI-RS and the CSI-IM.

User equipment 804, it is additionally operable to according to default time interval and preset rules, respectively from the multiple with reference to letter Effective subframe is determined in number target-subframe each accounted for, wherein, two adjacent effective subframes corresponding with any reference signal Between time interval be not less than the default time interval.

User equipment 804, it is additionally operable to each correspond to the ginseng transmitted in effective subframe according to the multiple reference signal respectively Signal is examined, calculates each self-corresponding CSI of the multiple CSI Process.

User equipment 804, it is additionally operable to set each self-corresponding CSI feedbacks of the multiple CSI Process to the net side It is standby.

As an alternative embodiment, the communication system in the embodiment of the present invention can also include the second net side equipment 1002 and the 3rd net side equipment 1003.

Specifically, in descending CoMP system, the first net side equipment 1001 can configure most 4 CSI to serving cell Process.In CA scenes, the carrier wave that can have multiple serving cells is polymerize.Shown with the structure of the resource grid shown in Fig. 5 Exemplified by intention, user equipment 1004 is operated in CA states, and variable number is 3, wherein the 3rd net side equipment 1003 can to Family equipment 1004 sends the specific reference signal of cell corresponding to first service cell CC0, and CC0 transmission mode is non-CoMP moulds Formula, i.e. unicast pattern；Second service cell CC1 transmission mode is CoMP patterns, and the first net side equipment 1001 is matched somebody with somebody to CC1 2 CSI Process are put；3rd serving cell CC2 transmission mode is CoMP patterns, and the second net side equipment 1002 gives CC2 It is configured with 2 CSI Process.

Each subframe carries ginseng in the serving cell of non-CoMP patterns a corresponding CSI Process, the CSI Process Signal is examined, each subframe is required for calculating CSI, it is determined that each in CSI Process corresponding to the serving cell of non-CoMP patterns Individual subframe is effective subframe, and wherein reference signal can be the specific reference signal of serving cell of non-CoMP patterns.Wherein CSI Process priority corresponding to the serving cell of non-CoMP patterns is higher than CSI corresponding to the serving cell of CoMP patterns Process priority.As shown in figure 5, user equipment 1004 can determine that subframe 0~19 is effective subframe, wherein effectively The reference signal that subframe carries can be found in grey parts corresponding to CC0 in Fig. 5.

First net side equipment 1001 is configured with 2 CSI Process to the serving cell CC1 of CoMP patterns, and then gives CSI Process1 is configured with CSI-RS1 and CSI-IM1, user equipment 1004 can determine effective subframe include subframe 4, 10th, 14 and 19, wherein the reference signal that effective subframe carries can be found in grey corresponding to the CSI Process1 of CC1 in Fig. 5 Part.First net side equipment 1001 is configured with CSI-RS2 and CSI-IM2, user equipment to CSI Process2 1004 can determine that effective subframe includes subframe 4,10,14 and 19, wherein the reference signal that effective subframe carries can be found in Fig. 5 Grey parts corresponding to middle CC1 CSI Process2.

Second net side equipment 1002 is configured with 2 CSI Process to the serving cell CC2 of CoMP patterns, and then gives CSI Process1 is configured with CSI-RS1 and CSI-IM1, user equipment 1004 can determine effective subframe include subframe 2, 7th, 12 and 17, wherein the reference signal that effective subframe carries can be found in grey portion corresponding to the CSI Process1 of CC2 in Fig. 5 Point.Second net side equipment 1002 is configured with CSI-RS2 and CSI-IM2, user equipment 1004 to CSI Process2 It can determine that effective subframe includes subframe 4,10,14 and 19, wherein the reference signal that effective subframe carries can be found in Fig. 5 Grey parts corresponding to CC2 CSI Process2.

It is pre- that user equipment 1004 may determine that whether the quantity of CSI Process corresponding to current CSI to be calculated is more than If amount threshold, if the determination result is YES, then the given sub-frame after the currently active subframe, calculates the relatively low CSI of priority CSI corresponding to Process.

As shown in figure 5, when predetermined number threshold value is 2, CSI Process corresponding to the current CSI to be calculated of subframe 1 include CC0 CSI Process, the current CSI to be calculated of subframe 1 quantity is 1, less than predetermined number threshold value, then user equipment 1004 reference signals that can be carried according to subframe 1, CSI corresponding to calculating.

CSI Process corresponding to the current CSI to be calculated of subframe 4 include CC0 CSI Process, CC1 CSI Process1, CC1 CSI Process2 and CC2 CSI Process2.Wherein, CC0 transmission mode is non-CoMP moulds Formula, then user equipment 1004 can determine that CC0 CSI Process priority is higher than other CSI Process.User equipment 1004 priority that can be numbered according to each CSI Process process, each CSI Process priority is determined, its CSI Process2 and CC2 of the middle CC1 CSI Process1 priority higher than CC1 CSI Process2, CC2 CSI CSI Process2 and CC2 of the Process1 priority higher than CC1 CSI Process2.And then user equipment 1004 can be with The priority numbered according to the serving cell of serving cell, obtain the excellent of the priority identical CSI Process that process is numbered First level.Such as user equipment 1004 according to the priority of serving cell numbering, can determine that CC1 CSI Process1's is preferential CSI Process1, CC1 of the level higher than CC2 CSI Process2 priority are higher than CC2 CSI Process2.Will be each Individual CSI Process are according to priority ordered as from high to low：CC0 CSI Process, CC1 CSI Process1, CC2 CSI Process1, CC1 CSI Process2 and CC2 CSI Process2.

User equipment 1004 judges that the quantity of CSI Process corresponding to current CSI to be calculated is more than predetermined number threshold After value, it can be calculated in the currently active subframe and meet predetermined number threshold value, and corresponding to the higher CSI Process of priority CSI, and the given sub-frame after the currently active subframe calculates CSI corresponding to other CSI Process.

For example, when predetermined number threshold value is 2, CSI Process corresponding to the current CSI to be calculated of subframe 4 include CC0's CSI Process, CC1 CSI Process1, CC1 CSI Process2 and CC2 CSI Process2, user equipment 1004 can calculate CSI corresponding to CC0 CSI Process, and CSI corresponding to CC1 CSI Process1 in subframe 4, And calculate CSI corresponding to CC1 CSI Process2, and CSI corresponding to CC2 CSI Process2 in subsequent subframe.Son CSI Process corresponding to the current CSI to be calculated of frame 5 include CC0 CSI Process, CC1 CSI Process2 and CC2 CSI Process2, user equipment 1004 can calculate CSI corresponding to CC0 CSI Process in subframe 5, and CSI corresponding to CC1 CSI Process2, and calculate CSI corresponding to CC2 CSI Process2 in subsequent subframe.Subframe 6 is worked as CSI Process corresponding to preceding CSI to be calculated include CC0 CSI Process and CC2 CSI Process2, user Equipment 1004 can calculate CSI corresponding to CC0 CSI Process in subframe 6, and corresponding to CC2 CSI Process2 CSI。

In prior art scheme, user equipment 1004 needs to calculate CSI corresponding to 4 CSI Process in subframe 4, Subframe 5 calculates CSI corresponding to 1 CSI Process, calculates CSI corresponding to 2 CSI Process in subframe 6, the present invention is real Example is applied by determining effective subframe and can calculate most 2 CSI in each subframe using time division multiplexing, user equipment 1004 CSI corresponding to Process, it can effectively reduce CSI computation complexity.

In the communication system shown in Fig. 8, net side equipment 801 is sent as multiple CSI Process points to user equipment 804 The multiple reference signals not configured, user equipment 804 is according to default time interval and preset rules, respectively from multiple references Effective subframe is determined in the target-subframe that signal each accounts for, user equipment 804 each corresponds to according to multiple reference signals respectively The reference signal transmitted in effective subframe, calculates each self-corresponding CSI of multiple CSI Process, user equipment 804 will be multiple Each self-corresponding CSI feedbacks of CSI Process give net side equipment, can reduce the computation complexity of channel condition information, and reduce Hardware cost.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not It is that must be directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any Combined in an appropriate manner in individual or multiple embodiments or example.In addition, in the case of not conflicting, the technology of this area Different embodiments or example and the feature of different embodiments or example described in this specification can be combined by personnel And combination.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three It is individual etc., unless otherwise specifically defined.

Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include Module, fragment or the portion of the code of the executable instruction for the step of one or more is used to realize specific logical function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.

Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the program listing for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.

It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..

Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer In read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..Although have been shown and retouch above Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention Type.

Claims

A kind of 1. method of reporting status information of channel, it is characterised in that including：

It is multiple reference signals that multiple channel condition information process CSI Process are respectively configured to receive net side equipment, described Multiple reference signals correspond with the multiple CSI Process, wherein, each reference signal includes the letter periodically sent Channel state information pilot tone CSI-RS and channel condition information interferometry CSI-IM, and each reference signal takes in transmission Subframe is target-subframe, and the signal transmitted in either objective subframe is at least one in the CSI-RS and the CSI-IM；

According to default time interval and preset rules, in the target-subframe each accounted for respectively from the multiple reference signal It is determined that effective subframe, wherein, the time interval between two corresponding with any reference signal adjacent effectively subframes is not less than institute State default time interval；

The reference signal transmitted in effective subframe is each corresponded to according to the multiple reference signal respectively, calculates the multiple CSI Each self-corresponding channel condition information CSI of Process；

Give each self-corresponding CSI feedbacks of the multiple CSI Process to the net side equipment；

Wherein, the preset rules include：

When the cycle phase of CSI-RS and CSI-IM in the reference signal is same, and when offseting identical, it is determined that with the reference signal Corresponding first target-subframe is the 1st effective subframe, and after (n-1)th corresponding to the reference signal effective subframe In target-subframe, it is determined that the time interval between (n-1)th effective subframe is minimum and is not less than the default time One target-subframe at interval is n-th of effective subframe；

Wherein, n is the positive integer more than 1.
2. the method as described in claim 1, it is characterised in that the preset rules include：

It is different when the cycle of CSI-RS and CSI-IM in the reference signal, or, CSI-RS and CSI- in the reference signal IM cycle phase is same but when offseting different, obtains first transmission CSI-RS corresponding with reference signal target-subframe, with And first transmission CSI-IM corresponding with reference signal target-subframe；

If the target-subframe of the first transmission CSI-RS is located at before the target-subframe of the first transmission CSI-IM, it is determined that The target-subframe of the first transmission CSI-IM is the 1st effective subframe；

If the target-subframe of the first transmission CSI-RS is located at after the target-subframe of the first transmission CSI-IM, it is determined that The target-subframe of the first transmission CSI-RS is the 1st effective subframe；

In the target-subframe after (n-1)th corresponding to the reference signal effective subframe, it is determined that with described (n-1)th effectively Time interval between subframe is minimum and is not less than a target-subframe of the default time interval for n-th of effective son Frame.
3. method as claimed in claim 1 or 2, it is characterised in that any reference signal corresponds to target-subframe and belongs to One CSI gathers or the 2nd CSI set；

It is described each to correspond to the reference signal transmitted in effective subframe according to the multiple reference signal respectively, calculate the multiple Each self-corresponding CSI of CSI Process include：

When the reference signal, which corresponds to, does not transmit CSI-IM in the currently active subframe, it is determined that according to the currently active subframe The CSI that the reference signal of previous effectively sub-frame transmission is calculated belongs to the first CSI set or the 2nd CSI set, and root According to the reference signal transmitted in the currently active subframe, the CSI set different from the CSI set belonging to previous CSI is calculated CSI；

When the reference signal, which corresponds to, transmits CSI-IM in the currently active subframe, according to corresponding to the reference signal The reference signal transmitted in the currently active subframe, calculate the CSI of the CSI set belonging to the currently active subframe.
4. the method as described in claim 1, it is characterised in that described to be each corresponding with according to the multiple reference signal respectively The reference signal transmitted in effect subframe, before calculating each self-corresponding CSI of the multiple CSI Process, in addition to：

Judge whether current CSI to be calculated quantity is more than predetermined number threshold value；

When judged result is to be, determine to meet the predetermined number threshold value in CSI Process corresponding to the multiple CSI Target CSI Process；

The reference signal transmitted in effective subframe, CSI corresponding to calculating are each corresponded to according to the target CSI Process；

Each correspond to what is transmitted in effective subframe according to other CSI Process in CSI Process corresponding to the multiple CSI Reference signal, calculated in the specified target-subframe effectively after subframe corresponding to CSI；

When judged result is no, the reference transmitted in effective subframe is each corresponded to according to CSI Process corresponding to the CSI Signal, CSI corresponding to calculating.
5. method as claimed in claim 4, it is characterised in that described true in CSI Process corresponding to the multiple CSI Surely meeting the target CSI Process of the predetermined number threshold value includes：

The priority numbered according to each self-corresponding CSI Process of the multiple CSI process, it is determined that meeting the present count Measure the target CSI Process of threshold value.
6. method as claimed in claim 4, it is characterised in that described true in CSI Process corresponding to the multiple CSI Surely meeting the target CSI Process of the predetermined number threshold value includes：

The priority numbered according to each self-corresponding CSI Process of the multiple CSI process, and process numbering are preferential The priority of the serving cell numbering of serving cell corresponding to level identical CSI Process, it is determined that meeting the predetermined number The target CSI Process of threshold value.
7. the method as described in any one of claim 4~6, it is characterised in that described in CSI corresponding to the multiple CSI Determine to meet that the target CSI Process of the predetermined number threshold value include in Process：

Detect that CSI Process corresponding to the multiple CSI include the CSI Process of serving cell of unicast pattern When, determine the CSI Process of the serving cell of unicast pattern highest priority.
8. method as claimed in claim 7, it is characterised in that the CSI of the serving cell of the unicast pattern Either objective subframe corresponding to Process is effective subframe, and the reference signal transmitted in the either objective subframe is the list The specific reference signal of serving cell of point transmission mode.
9. the method as described in any one of claim 4~6, it is characterised in that the CSI according to corresponding to the multiple CSI Other CSI Process each correspond to the reference signal transmitted in effective subframe in Process, after the effectively subframe Before specifying CSI corresponding to target-subframe calculating, in addition to：

It is determined that the quantity in specified target-subframe CSI to be calculated is not more than the predetermined number threshold value.
10. method as claimed in claim 1 or 2, it is characterised in that described each right according to the multiple reference signal respectively The reference signal transmitted in effective subframe is answered, calculating each self-corresponding CSI of the multiple CSI Process includes：

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS and CSI-IM, had according to described The CSI-RS and CSI-IM transmitted in effect subframe, CSI corresponding to calculating；

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-RS, according in the effectively subframe The CSI-RS of the transmission and CSI-IM, CSI corresponding to calculating that effectively subframe is transmitted recently before；

When the reference signal, which corresponds to the reference signal transmitted in effective subframe, includes CSI-IM, according in the effectively subframe The CSI-IM of the transmission and CSI-RS, CSI corresponding to calculating that effectively subframe is transmitted recently before.
A kind of 11. user equipment, it is characterised in that including：

Receiving unit, it is multiple reference signals that multiple CSI Process are respectively configured for receiving net side equipment, it is the multiple Reference signal corresponds with the multiple CSI Process, wherein, each reference signal includes the CSI-RS periodically sent And CSI-IM, and the subframe that is taken in transmission of each reference signal is target-subframe, the signal transmitted in either objective subframe To be at least one in the CSI-RS and the CSI-IM；

Determining unit, for according to default time interval and preset rules, being each accounted for respectively from the multiple reference signal Effective subframe is determined in target-subframe, wherein, two corresponding with any reference signal it is adjacent effectively between subframes when Between interval be not less than the default time interval；

Computing unit, for each corresponding to the reference signal transmitted in effective subframe according to the multiple reference signal respectively, meter Calculate each self-corresponding CSI of the multiple CSI Process；

Feedback unit, for giving each self-corresponding CSI feedbacks of the multiple CSI Process to the net side equipment；

Wherein, the preset rules include：

When the cycle phase of CSI-RS and CSI-IM in the reference signal is same, and when offseting identical, it is determined that with the reference signal Corresponding first target-subframe is the 1st effective subframe, and after (n-1)th corresponding to the reference signal effective subframe In target-subframe, it is determined that the time interval between (n-1)th effective subframe is minimum and is not less than the default time One target-subframe at interval is n-th of effective subframe；

Wherein, n is the positive integer more than 1.
12. user equipment as claimed in claim 11, it is characterised in that the preset rules include：

It is different when the cycle of CSI-RS and CSI-IM in the reference signal, or, CSI-RS and CSI- in the reference signal IM cycle phase is same but when offseting different, obtains first transmission CSI-RS corresponding with reference signal target-subframe, with And first transmission CSI-IM corresponding with reference signal target-subframe；

If the target-subframe of the first transmission CSI-RS is located at before the target-subframe of the first transmission CSI-IM, it is determined that The target-subframe of the first transmission CSI-IM is the effective subframe of starting；

If the target-subframe of the first transmission CSI-RS is located at after the target-subframe of the first transmission CSI-IM, it is determined that The target-subframe of the first transmission CSI-RS is the effective subframe of starting；

In the target-subframe after (n-1)th corresponding to the reference signal effective subframe, it is determined that with described (n-1)th effectively Time interval between subframe is minimum and is not less than a target-subframe of the default time interval for n-th of effective son Frame.
13. the user equipment as described in claim 11 or 12, it is characterised in that any reference signal corresponds to target-subframe Belong to the first CSI set or the 2nd CSI set；

The computing unit, for when the reference signal corresponds to and do not transmit CSI-IM in the currently active subframe, it is determined that basis The CSI that the reference signal of the previous effectively sub-frame transmission of the currently active subframe is calculated belongs to the first CSI set also It is the 2nd CSI set, and according to the reference signal transmitted in the currently active subframe, calculates and the CSI belonging to previous CSI Gather the CSI of different CSI set；

The computing unit, it is additionally operable to when the reference signal corresponds to and transmits CSI-IM in the currently active subframe, according to institute The reference signal transmitted in the currently active subframe corresponding to reference signal is stated, is calculated belonging to the currently active subframe The CSI of CSI set.
14. user equipment as claimed in claim 11, it is characterised in that also include：

Judging unit, each correspond to what is transmitted in effective subframe according to the multiple reference signal respectively for the computing unit Reference signal, before calculating each self-corresponding CSI of the multiple CSI Process, judging current CSI to be calculated quantity is It is no to be more than predetermined number threshold value；

The determining unit, it is additionally operable to when the judging unit judged result is to be, in CSI corresponding to the multiple CSI The target CSI Process for meeting the predetermined number threshold value are determined in Process；

The computing unit, it is additionally operable to each correspond to the reference letter transmitted in effective subframe according to the target CSI Process Number, CSI corresponding to calculating, and other CSI Process are each corresponded in the CSI Process according to corresponding to the multiple CSI The reference signal transmitted in effective subframe, the specified target-subframe after the effectively subframe calculate corresponding to CSI；

The computing unit, it is additionally operable to when the judging unit judged result is no, according to CSI corresponding to the CSI Process each corresponds to the reference signal transmitted in effective subframe, CSI corresponding to calculating.
15. user equipment as claimed in claim 14, it is characterised in that

The determining unit, for the priority numbered according to each self-corresponding CSI Process of the multiple CSI process, It is determined that meet the target CSI Process of the predetermined number threshold value.
16. user equipment as claimed in claim 14, it is characterised in that

The determining unit, for the priority numbered according to each self-corresponding CSI Process of the multiple CSI process, And the priority of the serving cell numbering of serving cell corresponding to the priority identical CSI Process of process numbering, really Surely the target CSI Process of the predetermined number threshold value are met.
17. the user equipment as described in any one of claim 14~16, it is characterised in that

The determining unit, for detecting that CSI Process corresponding to the multiple CSI include the service of unicast pattern During the CSI Process of cell, the CSI Process of the serving cell of unicast pattern highest priority is determined.
18. user equipment as claimed in claim 17, it is characterised in that the CSI of the serving cell of the unicast pattern Either objective subframe corresponding to Process is effective subframe, and the reference signal transmitted in the either objective subframe is the list The specific reference signal of serving cell of point transmission mode.
19. the user equipment as described in any one of claim 14~16, it is characterised in that

The determining unit, it is additionally operable to the computing unit and is each corresponded in effective subframe according to other described CSI Process The reference signal of transmission, before CSI corresponding to the given sub-frame calculating after the effectively subframe, it is determined that in the specified mesh Mark subframe CSI to be calculated quantity is not more than the predetermined number threshold value.
20. the user equipment as described in claim 11 or 12, it is characterised in that

The computing unit, for when the reference signal correspond to the reference signal transmitted in effective subframe include CSI-RS and During CSI-IM, according to the CSI-RS and CSI-IM transmitted in the effectively subframe, CSI corresponding to calculating；

The computing unit, it is additionally operable to include CSI-RS when the reference signal corresponds to the reference signal transmitted in effective subframe When, according to the CSI-IM transmitted recently before the CSI-RS and the effectively subframe transmitted in the effectively subframe, calculate corresponding CSI；

The computing unit, it is additionally operable to include CSI-IM when the reference signal corresponds to the reference signal transmitted in effective subframe When, according to the CSI-RS transmitted recently before the CSI-IM and the effectively subframe transmitted in the effectively subframe, calculate corresponding CSI.
A kind of 21. communication system, it is characterised in that the user including net side equipment and as described in any one of claim 11 to 20 Equipment, wherein：

The net side equipment, believe for sending the multiple references being respectively configured for multiple CSI Process to the user equipment Number, each corresponded to so that the user equipment calculates according to the multiple reference signal and feeds back the multiple CSI Process CSI.