CN108028720A - A kind of update method, communication equipment and the system at reporting status information of channel moment - Google Patents
A kind of update method, communication equipment and the system at reporting status information of channel moment Download PDFInfo
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- H—ELECTRICITY
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Abstract
The invention discloses a kind of update method at reporting status information of channel moment, including：Determine that the first of the first channel condition information reports moment and corresponding first reference resources of first channel condition information；When meeting preset condition at the time of where first reference resources, first channel condition information is reported the moment to be reported by described first to be updated to second constantly and report the moment；Wherein, at the time of the preset condition is where first reference resources and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report the reference resources existed between the moment different from first reference resources, and described first reports the moment and described second to report the time range between the moment to be less than the time threshold.The embodiment of the present invention additionally provides a kind of communication equipment and system.It can ensure that the reliability and data transmission efficiency of data transfer using the embodiment of the present invention.
Description
The present invention relates to field of communication technology more particularly to a kind of update method, communication equipment and the systems at reporting status information of channel moment.
Frequency spectrum is the basis of wireless communication, according to Federal Communications Commission (the Federal Communications Commission of newest publication, FCC) international spectrum white paper, exempt from licensed band (also referred to as unauthorized (unlicensed) frequency spectrum) resource and is greater than licensed band (authorization frequency spectrum) resource, therefore, by long term evolution (long term evolution, LTE) user equipment (User Equipment, UE it) applies and is exempting from licensed band, such as, license auxiliary access long term evolution (Licensed-Assisted Access Using Long Term Evolution, LAA-LTE) System can not only efficiently use and exempt from licensed band, can also provide more efficiently wireless access, meet growing mobile broadband demand for services.
When licensed band resource is exempted from LAA-LTE system use, need to defer to various regions to the specification for exempting from licensed band land use reform.
Listem-before-talk (Listen Before Talk, LBT) it is coexistence policies between system, the characteristics of LBT are as follows: whether before each communication equipment sends signal on some channel, it is idle to need first to detect present channel, if, signal can be transmitted in communication equipment, if it is not, communication equipment can not currently send signal, therefore, based on LBT rule, LTE equipment is opportunistic in the data transmission for exempting from licensed band.In order to ensure the reliability and data transmission efficiency of data transmission, it base station can be according to channel state information (the Channel State Information that UE measurement obtains, CSI), when judging to carry out data communication between base station and UE, UE after channel status, and suitable adjustment encoding scheme (Modulation Coding Scheme is selected according to CSI, MCS), with the channel status between matched base stations and UE, therefore, it is the precondition for guaranteeing base station and UE data transmission credibility and data transmission efficiency that base station, which obtains accurate CSI,.
For periodic report CSI (including channel quality indicate (Channel Quality Indicator, CQI), pre-coding matrix instruction (Precoding Matrix Indicator,) and order instruction (Rank Indicator PMI, RI)), due to being opportunistic in the data transmission for exempting from licensed band, by taking RI as an example, the case where differing farther out constantly is reported with RI at the time of there may be the reference resources place of RI, in this case, if
RI is reported reports RI constantly, and the channel status condition that the channel state information reported is reflected may differ by larger with the current channel condition condition that UE is undergone, and then influences data transmission credibility and data transmission efficiency between base station and UE.Further, under existing LTE system, due to the premise that UE can use this RI to calculate as subsequent wideband CQI/PMI and narrowband CQI/PMI, a series of CSI information reporting of inaccuracy is also resulted in, and then further influence data transmission credibility and data transmission efficiency between base station and UE.
Summary of the invention
The embodiment of the present invention provides update method, communication equipment and the system at a kind of reporting status information of channel moment, for ensuring the reliability and data transmission efficiency of data transmission.
First aspect of the embodiment of the present invention provides a kind of update method at reporting status information of channel moment, comprising:
Determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；
When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
In conjunction with the embodiment of the present invention in a first aspect, in the first possible implementation of the first aspect, after first channel state information of determination corresponding first reports the moment, the method also includes:
The moment is reported described first, reports first channel state information.
In conjunction with the possible implementation of the first of first aspect of the embodiment of the present invention or first aspect, in the second possible implementation of the first aspect, described second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.
In conjunction with second of possible implementation of first aspect of the embodiment of the present invention, in a third possible implementation of the first aspect, the second channel status information is the channel state information that priority is inferior to first channel state information.
In conjunction with second of first aspect of the embodiment of the present invention or the third possible implementation, in a fourth possible implementation of the first aspect, where first reference resources different at the time of at the time of where the second reference resources corresponding from the second channel status information.
In conjunction with first aspect of the embodiment of the present invention, first aspect the first to the 4th kind of any possible implementation, in the fifth possible implementation of the first aspect, it is described by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the method also includes: reported described second and report first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
It is in the sixth possible implementation of the first aspect, described after described second reports and report first channel state information constantly in conjunction with the 5th kind of possible implementation of first aspect of the embodiment of the present invention, the method also includes:
It is reported in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
In conjunction with first aspect of the embodiment of the present invention, first aspect the first to the 6th kind of any possible implementation, in a seventh possible implementation of the first aspect, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；
Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
Second aspect of the embodiment of the present invention provides a kind of communication equipment, comprising:
Determination unit, for determining that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；
Updating unit when meeting preset condition at the time of for where the determination unit determines obtained first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, and described first reports the moment and described second to report the moment
Between there are reference resources different from first reference resources, described first reports the moment and described second that time range between the moment is reported to be less than the time threshold.
In conjunction with second aspect of the embodiment of the present invention, in the first possible implementation of the second aspect, the communication equipment further include:
Reporting unit reports first channel state information for reporting the moment described first.
In conjunction with the possible implementation of the first of second aspect of the embodiment of the present invention or second aspect, in a second possible implementation of the second aspect, described second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.
In conjunction with second of possible implementation of second aspect of the embodiment of the present invention, in the third possible implementation of the second aspect, the second channel status information is the channel state information that priority is inferior to first channel state information.
In conjunction with second of second aspect of the embodiment of the present invention or the third possible implementation, in the fourth possible implementation of the second aspect, where first reference resources different at the time of at the time of where the second reference resources corresponding from the second channel status information.
In conjunction with second aspect of the embodiment of the present invention, second aspect the first to the 4th kind of any possible implementation, in a fifth possible implementation of the second aspect, the reporting unit, is also used to report described second and reports first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
In conjunction with the 5th kind of possible implementation of second aspect of the embodiment of the present invention, in the sixth possible implementation of the second aspect, the reporting unit is also used to report in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
In conjunction with second aspect of the embodiment of the present invention, second aspect the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of second aspect, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery ginseng
Examine signal DRS.
The third aspect of the embodiment of the present invention provides a kind of communication equipment, comprising:
Processor and memory；Wherein, the processor is by calling the code in the memory or instructing to execute following steps:
Determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；
When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
In conjunction with the third aspect of the embodiment of the present invention, in the first possible implementation of the third aspect, after first channel state information of determination corresponding first reports the moment, the processor is also used to:
The moment is reported described first, reports first channel state information.
In conjunction with the possible implementation of the first of the third aspect of the embodiment of the present invention or the third aspect, in the second possible implementation of the third aspect, described second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.
In conjunction with second of possible implementation of the third aspect of the embodiment of the present invention, in the third possible implementation of the third aspect, the second channel status information is the channel state information that priority is inferior to first channel state information.
In conjunction with second of the third aspect of the embodiment of the present invention or the third possible implementation, in the fourth possible implementation of the third aspect, where first reference resources different at the time of at the time of where the second reference resources corresponding from the second channel status information.
In conjunction with the third aspect of the embodiment of the present invention, the third aspect the first to the 4th kind of any possible implementation, in the 5th kind of possible implementation of the third aspect, it is described by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the processor is also used to:
Report described second reports first channel state information and the second channel state to believe constantly
Breath；First channel state information is reported constantly alternatively, reporting described second.
In conjunction with the 5th kind of possible implementation of the third aspect of the embodiment of the present invention, in the 6th kind of possible implementation of the third aspect, described after described second reports and report first channel state information constantly, the processor is also used to:
It is reported in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
In conjunction with the third aspect of the embodiment of the present invention, the third aspect the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of the third aspect, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；
Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
The third aspect of the embodiment of the present invention provides a kind of communication system, comprising:
The base station, for sending channel state parameter information to the communication equipment, the channel state parameter information includes the parameter information for reporting the moment for determining reporting status information of channel；
The communication equipment sends channel state parameter information for receiving the communication equipment；Determine that the first channel state information corresponding first reports the moment and described first to report moment corresponding first reference resources according to the channel state parameter information；When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
In conjunction with fourth aspect of the embodiment of the present invention, in the first possible implementation of the fourth aspect, after the communication equipment determines that the first channel state information corresponding first reports the moment according to the channel state parameter information,
The communication equipment is also used to report the moment described first, reports first channel state information；
The base station, first channel state information for being also used to report communication equipment described in reception to report first.
In conjunction with the possible implementation of the first of fourth aspect of the embodiment of the present invention or fourth aspect, in the second possible implementation of the fourth aspect, described second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.
In conjunction with second of possible implementation of fourth aspect of the embodiment of the present invention, in the third possible implementation of the fourth aspect, the second channel status information is the channel state information that priority is inferior to first channel state information.
In conjunction with second of fourth aspect of the embodiment of the present invention or the third possible implementation, in the fourth possible implementation of the fourth aspect, where first reference resources different at the time of at the time of where the second reference resources corresponding from the second channel status information.
In conjunction with fourth aspect of the embodiment of the present invention, fourth aspect the first to the 4th kind of any possible implementation, in the 5th kind of possible implementation of fourth aspect, the communication equipment by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the communication equipment is also used to: being reported described second and is reported first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
In conjunction with the 5th kind of possible implementation of fourth aspect of the embodiment of the present invention, in the 6th kind of possible implementation of fourth aspect, after described second reports and report first channel state information constantly, the communication equipment is also used to the communication equipment: being reported in third and is reported the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
In conjunction with fourth aspect of the embodiment of the present invention, fourth aspect the first to the 6th kind of possible implementation, in the 7th kind of possible implementation of fourth aspect, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；
Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal
CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
The implementation of the embodiments of the present invention has the following beneficial effects:
In the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.Due to first report the moment and second report between the moment exist different from first reference resources reference resources, and first reports the moment and second that the time range between the moment is reported to be less than time threshold, therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than the time threshold, the channel status for reporting UE reporting in the updated constantly close to UE after channel status, ensure that the accuracy for the channel state information CSI that base station receives, so ensuring the data transmission credibility and data transmission efficiency between base station and UE.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the drawings to be used in the description of the embodiments or prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without any creative labor, it is also possible to obtain other drawings based on these drawings.
Fig. 1 be a kind of network architecture schematic diagram disclosed by the embodiments of the present invention；
Fig. 2 a is the flow chart of first embodiment of the update method at reporting status information of channel moment provided in an embodiment of the present invention；
Fig. 2 b is that licensed band data provided in an embodiment of the present invention of exempting from transmit schematic diagram；
Fig. 3 is the flow chart of the second embodiment of the update method at reporting status information of channel moment provided in an embodiment of the present invention；
Fig. 4 is the 3rd embodiment flow chart of the update method at reporting status information of channel moment provided in an embodiment of the present invention；
Fig. 5 is the schematic structural diagram of the first embodiment of communication equipment provided in an embodiment of the present invention；
Fig. 6 is the schematic structural diagram of the second embodiment of communication equipment provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of communication system provided in an embodiment of the present invention.
The embodiment of the present invention provides update method, communication equipment and the system at a kind of reporting status information of channel moment, for ensuring the reliability and data transmission efficiency of data transmission.
In order to enable those skilled in the art to better understand the solution of the present invention, following will be combined with the drawings in the embodiments of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, should fall within the scope of the present invention.
It is described in detail separately below.
Description and claims of this specification and term " first " in the attached drawing, " second ", " third " and " the 4th " etc. are not use to describe a particular order for distinguishing different objects.In addition, term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as it contains the process, method, system, product or equipment of a series of steps or units and is not limited to listed step or unit, but optionally further comprising the step of not listing or unit, or optionally further comprising other step or units intrinsic for these process, methods, product or equipment.
Embodiment to facilitate the understanding of the present invention is below first described the network architecture of the embodiment of the present invention.Referring to Fig. 1, Fig. 1 is a kind of network architecture schematic diagram disclosed by the embodiments of the present invention.As shown in Figure 1, the network architecture of the embodiment of the present invention may include UE and base station.The network architecture is used for wireless communication system, particularly for the LTE system (i.e. LAA-LTE system) of licensed band auxiliary access.LAA-LTE system refers to licensed band and exempts from the LTE system that licensed band used together by the mode that carrier wave polymerize (Carrier Aggregation, CA) or non-CA.Such as, mainstream deployment scenario is by licensed band and to exempt from licensed band and pass through the scene that is used in combination of carrier wave polymerization CA, the carrier wave for including using licensed band or licensed band or the cell to work in licensed band are as main plot, it will exempt from licensed band or exempt from carrier wave that licensed band includes or work is exempting from the cell in licensed band as secondary cell, wherein main plot and secondary cell can be disposed with co-sited, it is also possible to non-co-sited deployment, has ideal return path between two cells.The network architecture is not limited to the scene of above-mentioned CA, it equally also can be applied to other deployments scene, such as including there is no the scene of ideal return path between two cells (main plot and secondary cell), or passback delay is larger, cause between two cells can not quick coordination information scene etc..Communication equipment involved in the embodiment of the present invention can with the relay node between UE and base station or be any one of UE, UE can for mobile phone, tablet computer,
Laptop, palm PC, mobile internet device (mobile internet device, MID) or other equipment that can support network interaction, the communication equipment of the embodiment of the present invention are subject to UE and are described in detail.Above-mentioned cell can be the corresponding cell in base station, cell may belong to macro base station, also it may belong to the corresponding base station of cell (small cell), here cell may include: urban cells (Metro cell), Microcell (Micro cell), picocell (Pico cell), Femto cell (Femto cell) etc., these cells have the characteristics that coverage area is small, transmission power is low, suitable for providing the data transport service of high-speed.There can be multiple cells to work on carrier wave in LTE system with frequency simultaneously, under certain special screnes, it is also assumed that the carrier wave in LTE system is equal with the concept of cell.Such as under CA scene, when configuring secondary carrier for UE, the carrier index of secondary carrier can be carried simultaneously and is worked in cell ID (the Cell Indentify of the secondary cell of the secondary carrier, Cell ID), in this case, it is considered that carrier wave is equal with the concept of cell, for example one cell of one carrier wave of UE access and access is equivalent.It will be introduced in the present invention with the concept of cell.
One embodiment of the update method at reporting status information of channel moment of the present invention.Wherein, a kind of update method at reporting status information of channel moment: determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
Fig. 2 is referred to, Fig. 2 is a kind of flow chart of first embodiment of the update method at reporting status information of channel moment provided in an embodiment of the present invention.Wherein, as shown in Fig. 2, a kind of update method at reporting status information of channel moment that one embodiment of the present of invention provides may include step S201~S202:
S201, UE determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information.
In the embodiment of the present invention, UE determines that the first channel state information corresponding first reports the specific embodiment at moment are as follows: after UE and base station establish communication connection, base station sends channel state parameter information to UE, wherein, above-mentioned channel state parameter information includes the parameter information for reporting the moment for determining reporting status information of channel；UE receives the above-mentioned channel state parameter information that base station is sent, and according to above-mentioned channel shape
State parameter information includes for determining that the parameter information for reporting the moment of reporting status information of channel determines that the first channel state information corresponding first reports the moment.Wherein, base station periodically can send channel state parameter information to UE；Alternatively, base station can also send channel state parameter information to UE after UE and base station establish the preset time after communication connection；Alternatively, base station directly can also send channel state parameter information etc. to UE after UE and base station establish communication connection, the present invention is without limitation.If UE is periodical reporting status information of channel, above-mentioned channel state parameter information may include report cycle and the offset in report cycle, in order to which what UE can determine reporting status information of channel reports the moment；If UE is non-periodic report channel state information, above-mentioned channel state parameter information may include that uplink scheduling permits (Uplink Scheduling Grant), UE is after receiving uplink scheduling and permitting, sending instant can be permitted according to predefined uplink scheduling and report the relationship between the moment, determine reporting status information of channel reports the moment, such as LTE system, uplink scheduling permits sending instant and the moment is reported all to be indicated with subframe, then predefined uplink scheduling permits sending instant and the relationship between the moment is reported to can be 4 milliseconds.Wherein, above-mentioned first channel state information for example can be order instruction RI, broadband channel quality instruction CQI or broadband precoding matrix instruction PMI, be also possible to narrowband CQI or narrowband PMI etc..The first channel state information of the embodiment of the present invention is illustrated by taking order instruction RI as an example.
In the embodiment of the present invention, UE determines the specific embodiment of corresponding first reference resources of first channel state information are as follows: UE is reported according to the first of above-mentioned first channel state information determines corresponding first reference resources of first channel state information constantly.Specifically, reference resources used in measurement CSI are defined in third generation cooperative partner program (3rd Generation Partnership Project, 3GPP) agreement at present.In definition, reference resources include time-domain resource and frequency domain resource, time-domain resource is generally indicated with the corresponding time-domain resource of the time quantum where reference resources, the time quantum can be any one of radio frames, subframe, time slot, OFDM symbol, correspondingly, the corresponding time-domain resource of time quantum can be the time-domain resource that time-domain resource, OFDM symbol that time-domain resource, time slot that time-domain resource, subframe that radio frames include include include include；Frequency domain resource indicate in above-mentioned time quantum, including whole frequency resources or component frequency resource.In embodiments of the present invention, the time-domain resource for mainly discussing that reference resources include is not specifically limited the frequency domain resource that reference resources include.The time-domain resource for including for reference resources, it can generally be indicated with the call number of the time quantum where time-domain resource, such as, for the CSI of periodic report, if at the time of periodic report CSI being the subframe that subframe index is n, the subframe index for then corresponding to subframe where this reports the CSI reference resources at moment is n-m, wherein m meets the following conditions: m is greater than or equal to
4 and subframe n-m is made to be the smallest positive integral value of available downlink subframe or special subframe.Above-mentioned special subframe is time division duplex (Time Division Duplexing; TDD a kind of sub-frame formats) used in system; it include descending pilot frequency time slot (Downlink Pilot Time Slot in special subframe; DwPTS), uplink pilot time slot (Uplink Pilot Time Slot;) and protection interval (Guard Period, GP) UpPTS.Therefore, in order to guarantee the accuracy of UE measurement CSI under LAA-LTE system, it can will measure the reference resources of CSI, before being defined as reporting moment 4ms apart from the CSI, and the subframe for reporting the moment recently apart from the CSI and being located within on-duration, above-mentioned on-duration be to service the base station of the user equipment to rob and account for this and exempt from licensed band resource and in the period for exempting from licensed band transmission data.Thus, above-mentioned first reference resources be apart from above-mentioned first report moment 4ms before, and distance first report the moment recently and be located at on-duration within subframe.It should be noted that, in embodiments of the present invention, subframe index can be used in the number in a radio frames to indicate, such as a radio frames include 10 subframes, then the subframe index in a radio frames can be indicated with k, wherein k is any integer in 0 to 9, in this case, if n-m above-mentioned is less than 0, then it represents that the corresponding subframe of n-m is before the radio frames where subframe n, if n-m is greater than 9, then it represents that the corresponding subframe of n-m is after the radio frames where subframe n；On the other hand, subframe index can also be usedWherein nf indicates wireless frame index number, can be any integer in 0-1023, and ns indicates time slot call number, can be any integer in 0-19,Expression is rounded downwards x, and "/" indicates division arithmetic symbol.Wherein, the serving cell that the reference resources in the embodiment of the present invention are located at the UE was sent on exempting from licensed band in the period of data；Above-mentioned reference resources include the reference signal of measure channel state information, that is the reference signal of measure channel state information is distributed in reference resources, above-mentioned reference signal include at least it is following any one: cell common reference signal (Cell-specific Reference Signal, CRS), signal status information reference signal (Channel State Information Reference Signal, CSI-RS), demodulated reference signal (Demodulation Reference Signal, DMRS) and discovery reference signal (Discovery Reference Signal, DRS), wherein, C SI-RS can also include non-zero power (None Zero Power, NZP) CSI-RS, CSI-IM (CSI-interference measurement).
S202, where first reference resources at the time of when meeting preset condition, the UE reports the moment to be reported by described first to be updated to second constantly and report the moment by first channel state information, wherein, at the time of the preset condition is where first reference resources and described first reports the time range between the moment to be greater than or equal to time threshold, and described first reports the moment and described second to report and deposit between the moment
In the reference resources for being different from first reference resources, described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold.Alternatively, in other words, when above-mentioned first reference resources are invalid reference resources, UE reports the moment to be reported by described first to be updated to second constantly and report the moment by above-mentioned first channel state information.Above-mentioned invalid reference resources refer to, if UE calculates channel state information according to above-mentioned invalid reference resources, the channel state information being calculated can not reflect the channel status undergone when UE receives the data service of serving cell.A kind of form of expression of invalid reference resources, such as, the mode defined according to existing protocol, as described in determining the specific steps of reference resources in above-mentioned steps S201, details are not described herein, if it is determined that reference resources be located at serving cell and do not rob and account for exempting from the time range of licensed band, i.e. corresponding with service cell is in the off-duration for exempting from licensed band, so it is considered that the reference resources determined are invalid reference resources, because, since serving cell is before exempting from licensed band and carrying out data transmission, it needs to first pass through passive listening such as LBT and determines the workability for exempting from licensed band, once serving cell carries out data transmission exempting from licensed band, within the time range of this data transmission, as long as other cells in addition to serving cell listen to the serving cell and are carrying out data Transmission, then can all keep silent in the time range that the serving cell carries out data, i.e., not send any data.Therefore serving cell is in on-duration and off-duration for exempting from licensed band, the channel disturbance undergone between serving cell and UE is horizontal different, therefore, think if first reference resources may be considered invalid reference resources at the time of where the first reference resources in the off-duration of serving cell.That is, the preset condition can also include, serving cell at the time of where first reference resources positioned at UE does not have to send in the period of data on exempting from licensed band, and the serving cell is exempting from licensed band and do not rob to account in period of the channel using chance in other words.At this point, UE can report the moment not report any information first；Or can also be reported first and report special channel state information constantly, the channel state information that Lai Fanying is reported is invalid, such as the special channel status information reported can be out of range (OOR).Meanwhile it will report for the first moment be updated to second and reporting the moment.
It should be noted that in embodiments of the present invention, listen to the serving cell and carrying out data transmission, or by way of signal detection, it is also possible to by way of energy measuring or the combination of the two.By way of signal detection, refer to the signal for detecting that the serving cell is sent, by way of energy measuring, the data capacity for referring to that the serving cell reaches other cells is more than a certain threshold value, such as
Power threshold.
It should be noted that in embodiments of the present invention, channel state information can also include that other are able to reflect the information when serving cell and UE communication, be not construed as limiting in embodiments of the present invention other than it may include CQI, PMI, RI.Wherein, above-mentioned time threshold can be indicated at least one of following: integer subframe, integer time slot, integer radio frames, integer OFDM symbol.Above-mentioned time threshold is related with the channel status stationarity where UE, for example, the longest report cycle of RI defined in 3GPP agreement at present, based on the considerations of longest report cycle, it is considered that the RI reported is that effectively, can support the calculating of CQI or PMI within the scope of report cycle.That is, time range between calling time at the time of where first reference resources and on described first is greater than or equal to time threshold, it is believed that can not reflect the channel status that UE is undergone on locating channel based on the first channel state information that first reference resources are calculated.It is good that above-mentioned first time threshold and above-mentioned second time threshold can be standard protocol specification；Alternatively, what the base station that above-mentioned first time threshold and above-mentioned second time threshold are also possible to service UE was carried into the channel state parameter information that UE is sent, or be pre-configured.Without limitation, different above-mentioned first channel state informations can correspond to different time thresholds to the present invention herein.
Wherein, above-mentioned first the moment and above-mentioned second is reported to report the reference resources existed between the moment different from first reference resources.Specifically, it please participate in Fig. 2 b, Fig. 2 b is to exempt from licensed band data to transmit schematic diagram, the above-mentioned reference resources different from first reference resources to should service the serving cell of UE first report the moment and second report robbed between the moment account for exempting from licensed band resource when.If service UE serving cell first report the moment and second report do not robbed between the moment account for exempting from licensed band resource when, it is evident that, the corresponding reference resources of second channel status information reference resources corresponding with the first channel state information are close, therefore, second report moment corresponding reference resources and second that the time range between the moment is reported to be also possible to still conform to above-mentioned preset condition.Therefore; in order to ensure the accuracy for the channel state information CSI that base station receives; in the case where first reports the moment and second reports the reference resources existed between the moment different from first reference resources; and above-mentioned first reports the moment and above-mentioned second that time range between the moment is reported to be less than the time threshold, and first is reported and is updated to second constantly and reports the moment.That is, first reports the moment and second that the time range between the moment is reported to be less than time threshold, therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than the time threshold.
In an inventive embodiments, above-mentioned second reports and sets constantly for the corresponding first wife of second channel status information
Report the moment.Wherein, what the corresponding first wife of second channel status information set report constantly for the channel state parameter information that UE is sent according to base station determine be used to report second channel status information report the moment.Above-mentioned second channel status information is different from first channel state information.First channel state information and second channel status information may each comprise RI, broadband CQI, broadband PMI, any one of subband CQI, subband PMI.Such as RI and broadband CQI, broadband PMI indicate different channel state informations, broadband CQI and broadband PMI indicate different channel state informations, for subband CQI, if the corresponding subband of subband CQI is different, so it is considered as different channel state informations, different channel state informations is considered as if the corresponding subband of subband PMI is different for subband PMI.
In another inventive embodiments, above-mentioned second channel status information is the channel state information that priority is inferior to first channel state information.That is, if above-mentioned first channel state information is RI, since second channel status information is the channel state information that priority is inferior to above-mentioned first channel state information, so above-mentioned second channel status information can be broadband CQI, broadband PMI, narrowband CQI, at least one of narrowband PMI, second channel of embodiment of the present invention status information is illustrated by taking the CQI/PMI of broadband as an example, and then above-mentioned second reports and sets for the corresponding first wife of broadband CQI/PMI constantly and report the moment, wherein, second reports the channel state parameter information sent constantly according to base station to UE for UE to be used to determine what the parameter information for reporting the moment of reporting status information of channel determined.
It is different at the time of reporting with above-mentioned second moment corresponding second reference resources place in another inventive embodiments, at the time of where above-mentioned first reference resources.That is, the corresponding first wife of RI at the time of setting where reference resources first wife corresponding from broadband CQI/PMI set it is different at the time of reference resources place.It should be noted that in embodiments of the present invention, can be indicated with the time quantum where reference resources at the time of where above-mentioned reference resources；Alternatively, can be indicated with the call number of time quantum, for example, when time quantum with subframe to indicate when, the call number of time quantum can be subframe index number.Correspondingly, if being indicated at the time of where above-mentioned reference resources with the subframe where reference resources, the subframe where difference refers at the time of above-mentioned place is not same.If being indicated at the time of where above-mentioned reference resources with the OFDM symbol where reference resources, the OFDM symbol where difference refers at the time of above-mentioned place is not same.
As can be seen that in the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.The moment and second is reported to report the reference resources existed between the moment different from first reference resources due to first, and first reports the moment and second to report time between the moment
Range is less than the time threshold; therefore; at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than time threshold; the channel status for reporting UE reporting in the updated constantly close to UE after channel status; ensure that the accuracy for the channel state information CSI that base station receives, so ensure the data transmission credibility and data transmission efficiency between base station and UE.
Optionally, after UE determines that the first channel state information corresponding first reports the moment, the update method at above-mentioned reporting status information of channel moment further include: report the moment described first, report first channel state information.That is, being updated constantly regardless of whether subsequent UE reports first, UE is reported first and reported the first channel state information constantly after UE determines that the first channel state information corresponding first reports the moment.
Optionally, UE by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the update method at above-mentioned reporting status information of channel moment further include: UE is reported described second and reported first channel state information and the second channel status information constantly；Alternatively, UE is reported described second reports first channel state information constantly.
Optionally, in UE after described second reports and report first channel state information constantly, the update method at above-mentioned reporting status information of channel moment further include: reported in third and report the second channel status information constantly；The third, which reports, reported for the after the moment adjacent described second reporting source of channel state information moment for reporting the moment constantly for described second；Alternatively, the third reports the moment that reports for third channel state information constantly, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
Fig. 3 is referred to, Fig. 3 is a kind of flow chart of the second embodiment of the update method at reporting status information of channel moment provided in an embodiment of the present invention.Wherein, as shown in figure 3, a kind of update method at reporting status information of channel moment that one embodiment of the present of invention provides may include step S301~S305:
S301, UE determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information.
In the embodiment of the present invention, UE determines that the first channel state information corresponding first reports the specific embodiment at moment are as follows: after UE and base station establish communication connection, base station sends channel state parameter information to UE, wherein, above-mentioned channel state parameter information includes reporting the moment for determine reporting status information of channel
Parameter information；UE receives the above-mentioned channel state parameter information that base station is sent, and includes for determining that the parameter information for reporting the moment of reporting status information of channel determines that the first channel state information corresponding first reports the moment according to above-mentioned channel state parameter information.Wherein, base station periodically can send channel state parameter information to UE；Alternatively, base station can also send channel state parameter information to UE after UE and base station establish the preset time after communication connection；Alternatively, base station directly can also send channel state parameter information etc. to UE after UE and base station establish communication connection, the present invention is without limitation.If UE is periodical reporting status information of channel, above-mentioned channel state parameter information may include report cycle and the offset in report cycle, in order to which what UE can determine reporting status information of channel reports the moment；If UE is non-periodic report channel state information, above-mentioned channel state parameter information may include that uplink scheduling is permitted, UE is after receiving uplink scheduling and permitting, sending instant can be permitted according to predefined uplink scheduling and report the relationship between the moment, determine reporting status information of channel reports the moment, such as LTE system, uplink scheduling permits sending instant and the moment is reported all to be indicated with subframe, then predefined uplink scheduling permits sending instant and the relationship between the moment is reported to can be 4 milliseconds.Wherein, above-mentioned first channel state information for example can be order instruction RI, broadband channel quality instruction CQI or broadband precoding matrix instruction PMI, be also possible to narrowband CQI or narrowband PMI etc..The first channel state information of the embodiment of the present invention is illustrated by taking order instruction RI as an example.
In the embodiment of the present invention, UE determines the specific embodiment of corresponding first reference resources of first channel state information are as follows: UE is reported according to the first of above-mentioned first channel state information determines corresponding first reference resources of first channel state information constantly.Specifically, reference resources used in measurement CSI are defined in third generation cooperative partner program 3GPP agreement at present.In definition, reference resources include time-domain resource and frequency domain resource, time-domain resource is generally indicated with the corresponding time-domain resource of the time quantum where reference resources, the time quantum can be any one of radio frames, subframe, time slot, OFDM symbol, correspondingly, the corresponding time-domain resource of time quantum can be the time-domain resource that time-domain resource, OFDM symbol that time-domain resource, time slot that time-domain resource, subframe that radio frames include include include include；Frequency domain resource indicate in above-mentioned time quantum, including whole frequency resources or component frequency resource.In embodiments of the present invention, the time-domain resource for mainly discussing that reference resources include is not specifically limited the frequency domain resource that reference resources include.The time-domain resource for including for reference resources, it can generally be indicated with the call number of the time quantum where time-domain resource, such as, for the CSI of periodic report, if at the time of periodic report CSI being the subframe that subframe index is n, the subframe index for then corresponding to subframe where this reports the CSI reference resources at moment is n-m
Wherein, m meets the following conditions: m is greater than or equal to 4 and subframe n-m is made to be the smallest positive integral value of available downlink subframe or special subframe.Above-mentioned special subframe is a kind of sub-frame formats used in TDD system, includes DwPTS, UpPTS and GP in special subframe.Therefore, in order to guarantee the accuracy of UE measurement CSI under LAA-LTE system, it can will measure the reference resources of CSI, before being defined as reporting moment 4ms apart from the CSI, and the subframe for reporting the moment recently apart from the CSI and being located within on-duration, above-mentioned on-duration be to service the base station of the user equipment to rob and account for this and exempt from licensed band resource and in the period for exempting from licensed band transmission data.Thus, above-mentioned first reference resources be apart from above-mentioned first report moment 4ms before, and distance first report the moment recently and be located at on-duration within subframe.It should be noted that, in embodiments of the present invention, subframe index can be used in the number in a radio frames to indicate, such as a radio frames include 10 subframes, then the subframe index in a radio frames can be indicated with k, wherein k is any integer in 0 to 9, in this case, if n-m above-mentioned is less than 0, then it represents that the corresponding subframe of n-m is before the radio frames where subframe n, if n-m is greater than 9, then it represents that the corresponding subframe of n-m is after the radio frames where subframe n；On the other hand, subframe index can also be usedWherein nf indicates wireless frame index number, can be any integer in 0-1023, and ns indicates time slot call number, can be any integer in 0-19,Expression is rounded downwards x, and "/" indicates division arithmetic symbol.Wherein, the serving cell that the reference resources in the embodiment of the present invention are located at the UE was sent on exempting from licensed band in the period of data；Above-mentioned reference resources include the reference signal of measure channel state information, that is the reference signal of measure channel state information is distributed in reference resources, above-mentioned reference signal include at least it is following any one: CRS, CSI-RS, DMRS and DRS, wherein, CSI-RS can also include NZP-CSI-RS, CSI-IM.
S302, the UE report the moment described first, report first channel state information.
In the embodiment of the present invention, since UE not can determine that first reports the moment and second to report between the moment with the presence or absence of new reference resources in advance, if following step S303 first is reported be updated to constantly second report the moment after, second report moment corresponding reference resources still can not close to UE after channel status, that is, moment and second where second reference resources reports the time range between the moment to be also possible to meet above-mentioned preset condition, that is, second to report may not be proper to report the moment constantly, at this time, the case where in order to avoid channel state information missing, UE reports the moment described first, report first channel state information, the channel status that the channel state information reported constantly can be reported to determine that UE is undergone using above-mentioned first in order to base station, and then it keeps away The case where exempting from channel state information missing.
S303, if meeting preset condition at the time of where first reference resources, UE reports the moment to be reported by described first to be updated to second constantly and report the moment by first channel state information, wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report the reference resources existed between the moment different from first reference resources, described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold.Alternatively, in other words, when above-mentioned first reference resources are invalid reference resources, UE reports the moment to be reported by described first to be updated to second constantly and report the moment by above-mentioned first channel state information.Above-mentioned invalid reference resources refer to, if UE calculates channel state information according to above-mentioned invalid reference resources, the channel state information being calculated can not reflect the channel status undergone when UE receives the data service of serving cell.A kind of form of expression of invalid reference resources, such as, the mode defined according to existing protocol, as described in determining the specific steps of reference resources in above-mentioned steps S301, details are not described herein, if it is determined that reference resources be located at serving cell and do not rob and account for exempting from the time range of licensed band, i.e. corresponding with service cell is in the off-duration for exempting from licensed band, so it is considered that the reference resources determined are invalid reference resources, because, since serving cell is before exempting from licensed band and carrying out data transmission, it needs to first pass through passive listening such as LBT and determines the workability for exempting from licensed band, once serving cell carries out data transmission exempting from licensed band, within the time range of this data transmission, as long as other cells in addition to serving cell listen to the serving cell and are carrying out data Transmission, then can all keep silent in the time range that the serving cell carries out data, i.e., not send any data.Therefore serving cell is in on-duration and off-duration for exempting from licensed band, the channel disturbance undergone between serving cell and UE is horizontal different, therefore, think if first reference resources may be considered invalid reference resources at the time of where the first reference resources in the off-duration of serving cell.That is, the preset condition can also include, serving cell at the time of where first reference resources positioned at UE does not have to send in the period of data on exempting from licensed band, and the serving cell is exempting from licensed band and do not rob to account in period of the channel using chance in other words.At this point, UE can report the moment not report any information first；Or can also be reported first and report special channel state information constantly, the channel state information that Lai Fanying is reported is invalid, such as the special channel status information reported can be out of range (OOR).Meanwhile it will report for the first moment be updated to second and reporting the moment.
It should be noted that in embodiments of the present invention, listen to the serving cell and carrying out data transmission, or by way of signal detection, it is also possible to by way of energy measuring or the combination of the two.By way of signal detection, refer to the signal for detecting that the serving cell is sent, by way of energy measuring, the data capacity for referring to that the serving cell reaches other cells is more than a certain threshold value, such as power threshold.
It should be noted that in embodiments of the present invention, channel state information can also include that other are able to reflect the information when serving cell and UE communication, be not construed as limiting in embodiments of the present invention other than it may include CQI, PMI, RI.Wherein, above-mentioned time threshold can be indicated at least one of following: integer subframe, integer time slot, integer radio frames, integer OFDM symbol.Above-mentioned time threshold is related with the channel status stationarity where UE, for example, the longest report cycle of RI defined in 3GPP agreement at present, based on the considerations of longest report cycle, it is considered that the RI reported is that effectively, can support the calculating of CQI or PMI within the scope of report cycle.That is, time range between calling time at the time of where first reference resources and on described first is greater than or equal to time threshold, it is believed that can not reflect the channel status that UE is undergone on locating channel based on the first channel state information that first reference resources are calculated.It is good that above-mentioned first time threshold and above-mentioned second time threshold can be standard protocol specification；Alternatively, what the base station that above-mentioned first time threshold and above-mentioned second time threshold are also possible to service UE was carried into the channel state parameter information that UE is sent, or be pre-configured.Without limitation, different above-mentioned first channel state informations can correspond to different time thresholds to the present invention herein.
Wherein, above-mentioned first the moment and above-mentioned second is reported to report the reference resources existed between the moment different from first reference resources.Specifically, it please participate in Fig. 2 b, Fig. 2 b is to exempt from licensed band data to transmit schematic diagram, the above-mentioned reference resources different from first reference resources to should service the serving cell of UE first report the moment and second report robbed between the moment account for exempting from licensed band resource when.If service UE serving cell first report the moment and second report do not robbed between the moment account for exempting from licensed band resource when, it is evident that, the corresponding reference resources of second channel status information reference resources corresponding with the first channel state information are close, therefore, second report moment corresponding reference resources and second that the time range between the moment is reported to be also possible to still conform to above-mentioned preset condition.Therefore; in order to ensure the accuracy for the channel state information CSI that base station receives; in the case where first reports the moment and second reports the reference resources existed between the moment different from first reference resources; and above-mentioned first reports the moment and above-mentioned second that time range between the moment is reported to be less than the time threshold, and first is reported and is updated to second constantly and reports the moment.That is,
First reports the moment and second that the time range between the moment is reported to be less than time threshold, and therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than the time threshold.
In an inventive embodiments, above-mentioned second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.Wherein, what the corresponding first wife of second channel status information set report constantly for the channel state parameter information that UE is sent according to base station determine be used to report second channel status information report the moment.Above-mentioned second channel status information is different from first channel state information.First channel state information and second channel status information may each comprise RI, broadband CQI, broadband PMI, any one of subband CQI, subband PMI.Such as RI and broadband CQI, broadband PMI indicate different channel state informations, broadband CQI and broadband PMI indicate different channel state informations, for subband CQI, if the corresponding subband of subband CQI is different, so it is considered as different channel state informations, different channel state informations is considered as if the corresponding subband of subband PMI is different for subband PMI.
In another inventive embodiments, above-mentioned second channel status information is the channel state information that priority is inferior to first channel state information.That is, if above-mentioned first channel state information is RI, since second channel status information is the channel state information that priority is inferior to above-mentioned first channel state information, so above-mentioned second channel status information can be broadband CQI, broadband PMI, narrowband CQI, at least one of narrowband PMI, second channel of embodiment of the present invention status information is illustrated by taking the CQI/PMI of broadband as an example, and then above-mentioned second reports and sets for the corresponding first wife of broadband CQI/PMI constantly and report the moment, wherein, second reports the channel state parameter information sent constantly according to base station to UE for UE to be used to determine what the parameter information for reporting the moment of reporting status information of channel determined.
It is different at the time of reporting with above-mentioned second moment corresponding second reference resources place in another inventive embodiments, at the time of where above-mentioned first reference resources.That is, the corresponding first wife of RI at the time of setting where reference resources first wife corresponding from broadband CQI/PMI set it is different at the time of reference resources place.It should be noted that in embodiments of the present invention, can be indicated with the time quantum where reference resources at the time of where above-mentioned reference resources；Alternatively, can be indicated with the call number of time quantum, for example, when time quantum with subframe to indicate when, the call number of time quantum can be subframe index number.Correspondingly, if being indicated at the time of where above-mentioned reference resources with the subframe where reference resources, the subframe where difference refers at the time of above-mentioned place is not same.If being indicated at the time of where above-mentioned reference resources with the OFDM symbol where reference resources, the OFDM symbol where difference refers at the time of above-mentioned place is not same.
S304, UE are reported described second and are reported first channel state information constantly.
In the embodiment of the present invention, UE is reported described second and is reported first channel state information constantly.That is, UE reports the moment only to report RI in broadband CQI/PMI, broadband CQI/PMI is not reported.
In another inventive embodiments, UE can also report above-mentioned second channel status information while described second reports and report above-mentioned first channel state information constantly.That is, UE reporting the moment while reporting RI and broadband CQI/PMI in broadband CQI/PMI.
S305, UE are reported in third and are reported the second channel status information constantly.
In an inventive embodiments, above-mentioned third report the moment can for above-mentioned second report the adjacent channel state information for reporting second to report the moment after the moment report the moment.That is, the channel state information of periodic report is corresponding to report the moment successively to prolong afterwards, such as, UE supports RI to report, broadband CQI/PMI and subband CQI/PMI are reported, and UE needs to report the channel state information of 2 subbands, then the sequencing that UE is reported is respectively as follows: reports RI in reporting for broadband CQI/PMI constantly, in reporting for the first subband CQI/PMI broadband CQI/PMI is reported constantly, report the first subband CQI/PMI constantly in reporting for the second subband CQI/PMI.
In another inventive embodiments, above-mentioned third, which reports to set constantly for the first wife of third channel state information, reports the moment, and above-mentioned third channel state information is the identical channel state information of second channel status information the latter adjacent periods type.For example, second channel status information is broadband CQI, second to report be to report moment that reports of broadband CQI constantly, then third reports constantly as after second reports the moment, next to report broadband CQI's to report the moment.That is, UE reports discarding second channel status information constantly second, and subsequent report is not utilized to report the second status information constantly, but the next second channel state information report moment set in first wife reports second channel status information.Such as, UE supports RI to report, broadband CQI/PMI and subband CQI/PMI are reported, and UE needs to report the channel state information of 2 subbands, first channel state information is RI, second channel status information is broadband CQI/PMI, then the sequencing that UE is reported is respectively: in broadband, reporting for CQI/PMI reports RI constantly, reports the first subband CQI/PMI constantly in reporting for the first subband CQI/PMI, reports the second subband CQI/PMI constantly in reporting for the second subband CQI/PMI, reporting broadband CQI/PMI constantly in reporting for broadband CQI/PMI.
As can be seen that in the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.Due to first report the moment to report between the moment from second there are different
In the reference resources of first reference resources; and first reports the moment and second that the time range between the moment is reported to be less than the time threshold; therefore; at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than time threshold; the channel status for reporting UE reporting in the updated constantly close to UE after channel status; ensure that the accuracy for the channel state information CSI that base station receives, so ensure the data transmission credibility and data transmission efficiency between base station and UE.
Fig. 4 is referred to, Fig. 4 is a kind of 3rd embodiment flow chart of the update method at reporting status information of channel moment provided in an embodiment of the present invention.Wherein, as shown in figure 4, a kind of update method at reporting status information of channel moment that one embodiment of the present of invention provides may include step S401~S410:
S401, base station send channel state parameter information to UE, and the channel state parameter information includes the parameter information for reporting the moment for determining reporting status information of channel.
In the embodiment of the present invention, base station periodically can send channel state parameter information to UE；Alternatively, base station can also send channel state parameter information to UE after UE and base station establish the preset time after communication connection；Alternatively, base station directly can also send channel state parameter information etc. to UE after UE and base station establish communication connection, the present invention is without limitation.
S402, the UE receive the base station and send channel state parameter information.
S403, the UE determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information according to the channel state parameter information.
In the embodiment of the present invention, UE determines that the first channel state information corresponding first reports the specific embodiment at moment are as follows: after UE and base station establish communication connection, base station sends channel state parameter information to UE, wherein, above-mentioned channel state parameter information includes the parameter information for reporting the moment for determining reporting status information of channel；UE receives the above-mentioned channel state parameter information that base station is sent, and includes for determining that the parameter information for reporting the moment of reporting status information of channel determines that the first channel state information corresponding first reports the moment according to above-mentioned channel state parameter information.Wherein, base station periodically can send channel state parameter information to UE；Alternatively, base station can also send channel state parameter information to UE after UE and base station establish the preset time after communication connection；Alternatively, base station directly can also send channel state parameter information etc. to UE after UE and base station establish communication connection, the present invention is without limitation.If UE is periodical reporting status information of channel, above-mentioned channel state parameter information may include report cycle and in report cycle
Interior offset, in order to which what UE can determine reporting status information of channel reports the moment；If UE is non-periodic report channel state information, above-mentioned channel state parameter information may include that uplink scheduling is permitted, UE is after receiving uplink scheduling and permitting, sending instant can be permitted according to predefined uplink scheduling and report the relationship between the moment, determine reporting status information of channel reports the moment, such as LTE system, uplink scheduling permits sending instant and the moment is reported all to be indicated with subframe, then predefined uplink scheduling permits sending instant and the relationship between the moment is reported to can be 4 milliseconds.Wherein, above-mentioned first channel state information for example can be order instruction RI, broadband channel quality instruction CQI or broadband precoding matrix instruction PMI, be also possible to narrowband CQI or narrowband PMI etc..The first channel state information of the embodiment of the present invention is illustrated by taking order instruction RI as an example.
In the embodiment of the present invention, UE determines the specific embodiment of corresponding first reference resources of first channel state information are as follows: UE is reported according to the first of above-mentioned first channel state information determines corresponding first reference resources of first channel state information constantly.Specifically, reference resources used in measurement CSI are defined in third generation cooperative partner program 3GPP agreement at present.In definition, reference resources include time-domain resource and frequency domain resource, time-domain resource is generally indicated with the corresponding time-domain resource of the time quantum where reference resources, the time quantum can be any one of radio frames, subframe, time slot, OFDM symbol, correspondingly, the corresponding time-domain resource of time quantum can be the time-domain resource that time-domain resource, OFDM symbol that time-domain resource, time slot that time-domain resource, subframe that radio frames include include include include；Frequency domain resource indicate in above-mentioned time quantum, including whole frequency resources or component frequency resource.In embodiments of the present invention, the time-domain resource for mainly discussing that reference resources include is not specifically limited the frequency domain resource that reference resources include.The time-domain resource for including for reference resources, it can generally be indicated with the call number of the time quantum where time-domain resource, such as, for the CSI of periodic report, if at the time of periodic report CSI being the subframe that subframe index is n, the subframe index for then corresponding to subframe where this reports the CSI reference resources at moment is n-m, wherein m meets the following conditions: m is greater than or equal to 4 and subframe n-m is made to be the smallest positive integral value of available downlink subframe or special subframe.Above-mentioned special subframe is a kind of sub-frame formats used in TDD system, includes DwPTS, UpPTS and GP in special subframe.Therefore, in order to guarantee the accuracy of UE measurement CSI under LAA-LTE system, it can will measure the reference resources of CSI, before being defined as reporting moment 4ms apart from the CSI, and the subframe for reporting the moment recently apart from the CSI and being located within on-duration, above-mentioned on-duration be to service the base station of the user equipment to rob and account for this and exempt from licensed band resource and in the period for exempting from licensed band transmission data.Thus, above-mentioned first reference resources are to report apart from above-mentioned first
Before moment 4ms, and the subframe that distance first reports the moment recently and is located within on-duration.It should be noted that, in embodiments of the present invention, subframe index can be used in the number in a radio frames to indicate, such as a radio frames include 10 subframes, then the subframe index in a radio frames can be indicated with k, wherein k is any integer in 0 to 9, in this case, if n-m above-mentioned is less than 0, then it represents that the corresponding subframe of n-m is before the radio frames where subframe n, if n-m is greater than 9, then it represents that the corresponding subframe of n-m is after the radio frames where subframe n；On the other hand, subframe index can also be usedWherein nf indicates wireless frame index number, can be any integer in 0-1023, and ns indicates time slot call number, can be any integer in 0-19,Expression is rounded downwards x, and "/" indicates division arithmetic symbol.Wherein, the serving cell that the reference resources in the embodiment of the present invention are located at the UE was sent on exempting from licensed band in the period of data；Above-mentioned reference resources include the reference signal of measure channel state information, that is the reference signal of measure channel state information is distributed in reference resources, above-mentioned reference signal include at least it is following any one: CRS, CSI-RS, DMRS and DRS, wherein, CSI-RS can also include NZP-CSI-RS, CSI-IM.
S404, the UE report the moment described first, report first channel state information.In the embodiment of the present invention, since UE not can determine that first reports the moment and second to report between the moment with the presence or absence of new reference resources in advance, if following step S406 first is reported be updated to constantly second report the moment after, second reports moment corresponding reference resources still to meet preset condition, that is, moment and second where second reference resources reports the time range between the moment to be also possible to meet above-mentioned preset condition, that is, second to report may not be proper to report the moment constantly, at this time, the case where in order to avoid channel state information missing, UE reports the moment described first, report first channel state information, the channel status that the channel state information reported constantly can be reported to determine that UE is undergone using above-mentioned first in order to base station, and then the case where avoiding channel state information from lacking.
First channel state information that S405, the base station report UE described in reception to report first.
If meeting preset condition at the time of where S406, first reference resources, the UE reports the moment to be reported by described first to be updated to second constantly and report the moment by first channel state information, wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report the reference resources existed between the moment different from first reference resources, and described first reports the moment and described second to report the moment
Between time range be less than the time threshold.
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold.Alternatively, in other words, when above-mentioned first reference resources are invalid reference resources, UE reports the moment to be reported by described first to be updated to second constantly and report the moment by above-mentioned first channel state information.Above-mentioned invalid reference resources refer to, if UE calculates channel state information according to above-mentioned invalid reference resources, the channel state information being calculated can not reflect the channel status undergone when UE receives the data service of serving cell.A kind of form of expression of invalid reference resources, such as, the mode defined according to existing protocol, as described in determining the specific steps of reference resources in above-mentioned steps S401, details are not described herein, if it is determined that reference resources be located at serving cell and do not rob and account for exempting from the time range of licensed band, i.e. corresponding with service cell is in the off-duration for exempting from licensed band, so it is considered that the reference resources determined are invalid reference resources, because, since serving cell is before exempting from licensed band and carrying out data transmission, it needs to first pass through passive listening such as LBT and determines the workability for exempting from licensed band, once serving cell carries out data transmission exempting from licensed band, within the time range of this data transmission, as long as other cells in addition to serving cell listen to the serving cell and are carrying out data Transmission, then can all keep silent in the time range that the serving cell carries out data, i.e., not send any data.Therefore serving cell is in on-duration and off-duration for exempting from licensed band, the channel disturbance undergone between serving cell and UE is horizontal different, therefore, think if first reference resources may be considered invalid reference resources at the time of where the first reference resources in the off-duration of serving cell.That is, the preset condition can also include, serving cell at the time of where first reference resources positioned at UE does not have to send in the period of data on exempting from licensed band, and the serving cell is exempting from licensed band and do not rob to account in period of the channel using chance in other words.At this point, UE can report the moment not report any information first；Or can also be reported first and report special channel state information constantly, the channel state information that Lai Fanying is reported is invalid, such as the special channel status information reported can be out of range (OOR).Meanwhile it will report for the first moment be updated to second and reporting the moment.
It should be noted that in embodiments of the present invention, listen to the serving cell and carrying out data transmission, or by way of signal detection, it is also possible to by way of energy measuring or the combination of the two.By way of signal detection, refer to the signal for detecting that the serving cell is sent, by way of energy measuring, the data capacity for referring to that the serving cell reaches other cells is more than a certain threshold value, such as power threshold.
It should be noted that in embodiments of the present invention, channel state information can also include that other are able to reflect the information when serving cell and UE communication, be not construed as limiting in embodiments of the present invention other than it may include CQI, PMI, RI.Wherein, above-mentioned time threshold can be indicated at least one of following: integer subframe, integer time slot, integer radio frames, integer OFDM symbol.Above-mentioned time threshold is related with the channel status stationarity where UE, for example, the longest report cycle of RI defined in 3GPP agreement at present, based on the considerations of longest report cycle, it is considered that the RI reported is that effectively, can support the calculating of CQI or PMI within the scope of report cycle.That is, time range between calling time at the time of where first reference resources and on described first is greater than or equal to time threshold, it is believed that can not reflect the channel status that UE is undergone on locating channel based on the first channel state information that first reference resources are calculated.It is good that above-mentioned first time threshold and above-mentioned second time threshold can be standard protocol specification；Alternatively, what the base station that above-mentioned first time threshold and above-mentioned second time threshold are also possible to service UE was carried into the channel state parameter information that UE is sent, or be pre-configured.Without limitation, different above-mentioned first channel state informations can correspond to different time thresholds to the present invention herein.
Wherein, above-mentioned first the moment and above-mentioned second is reported to report the reference resources existed between the moment different from first reference resources.Specifically, Fig. 2 b please be participated in, Fig. 2 b is to exempt from licensed band data to transmit schematic diagram, and the serving cell that the above-mentioned reference resources different from first reference resources are service UE reports the moment and second to report to rob between the moment and account for exempting from licensed band resource first.If first reports the moment and second to report the reference resources for being different from first reference resources between the moment, it is evident that, the corresponding reference resources of second channel status information reference resources corresponding with the first channel state information are close, therefore, second report moment corresponding reference resources and second that the time range between the moment is reported to be also possible to still conform to above-mentioned preset condition.Therefore; in order to ensure the accuracy for the channel state information CSI that base station receives; in the case where first reports the moment and second reports the reference resources existed between the moment different from first reference resources; and above-mentioned first reports the moment and above-mentioned second that time range between the moment is reported to be less than the time threshold, and first is reported and is updated to second constantly and reports the moment.That is, first reports the moment and second that the time range between the moment is reported to be less than time threshold, therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than the time threshold.
In an inventive embodiments, above-mentioned second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.Wherein, what the corresponding first wife of second channel status information set report constantly for the channel state parameter information that UE is sent according to base station determine be used to report second channel status information report the moment.It is above-mentioned
Second channel status information is different from first channel state information.First channel state information and second channel status information may each comprise RI, broadband CQI, broadband PMI, any one of subband CQI, subband PMI.Such as RI and broadband CQI, broadband PMI indicate different channel state informations, broadband CQI and broadband PMI indicate different channel state informations, for subband CQI, if the corresponding subband of subband CQI is different, so it is considered as different channel state informations, different channel state informations is considered as if the corresponding subband of subband PMI is different for subband PMI.
In another inventive embodiments, above-mentioned second channel status information is the channel state information that priority is inferior to first channel state information.That is, if above-mentioned first channel state information is RI, since second channel status information is the channel state information that priority is inferior to above-mentioned first channel state information, so above-mentioned second channel status information can be broadband CQI, broadband PMI, narrowband CQI, at least one of narrowband PMI, second channel of embodiment of the present invention status information is illustrated by taking the CQI/PMI of broadband as an example, and then above-mentioned second reports and sets for the corresponding first wife of broadband CQI/PMI constantly and report the moment, wherein, second reports the channel state parameter information sent constantly according to base station to UE for UE to be used to determine what the parameter information for reporting the moment of reporting status information of channel determined.
It is different at the time of reporting with above-mentioned second moment corresponding second reference resources place in another inventive embodiments, at the time of where above-mentioned first reference resources.That is, different at the time of former determining reference resources place corresponding from broadband CQI/PMI at the time of where the determining reference resources of the corresponding original of RI.It should be noted that in embodiments of the present invention, can be indicated with the time quantum where reference resources at the time of where above-mentioned reference resources；Alternatively, can be indicated with the call number of time quantum, for example, when time quantum with subframe to indicate when, the call number of time quantum can be subframe index number.Correspondingly, if being indicated at the time of where above-mentioned reference resources with the subframe where reference resources, the subframe where difference refers at the time of above-mentioned place is not same.If being indicated at the time of where above-mentioned reference resources with the OFDM symbol where reference resources, the OFDM symbol where difference refers at the time of above-mentioned place is not same.
S407, the UE are reported described second and are reported first channel state information constantly.
In the embodiment of the present invention, UE is reported described second and is reported first channel state information constantly.That is, UE reports the moment only to report RI in broadband CQI/PMI, broadband CQI/PMI is not reported.
In another inventive embodiments, UE can also report above-mentioned second channel status information while described second reports and report above-mentioned first channel state information constantly.That is, UE reporting the moment while reporting RI and broadband CQI/PMI in broadband CQI/PMI.
First channel state information that S408, the base station report UE described in reception to report described second.
S409, the UE are reported in third and are reported the second channel status information constantly.
In an inventive embodiments, above-mentioned third report the moment can for above-mentioned second report the adjacent channel state information for reporting second to report the moment after the moment report the moment.That is, the channel state information of periodic report is corresponding to report the moment successively to prolong afterwards, such as, UE supports RI to report, broadband CQI/PMI and subband CQI/PMI are reported, and UE needs to report the channel state information of 2 subbands, then the sequencing that UE is reported is respectively as follows: reports RI in reporting for broadband CQI/PMI constantly, in reporting for the first subband CQI/PMI broadband CQI/PMI is reported constantly, report the first subband CQI/PMI constantly in reporting for the second subband CQI/PMI.
In another inventive embodiments, above-mentioned third, which reports to set constantly for the first wife of third channel state information, reports the moment, and above-mentioned third channel state information is the identical channel state information of second channel status information the latter adjacent periods type.For example, second channel status information is broadband CQI, second to report be to report moment that reports of broadband CQI constantly, then third reports constantly as after second reports the moment, next to report broadband CQI's to report the moment.That is, UE reports discarding second channel status information constantly second, and subsequent report is not utilized to report the second status information constantly, but the next second channel state information report moment set in first wife reports second channel status information.Such as, UE supports RI to report, broadband CQI/PMI and subband CQI/PMI are reported, and UE needs to report the channel state information of 2 subbands, first channel state information is RI, second channel status information is broadband CQI/PMI, then the sequencing that UE is reported is respectively: in broadband, reporting for CQI/PMI reports RI constantly, reports the first subband CQI/PMI constantly in reporting for the first subband CQI/PMI, reports the second subband CQI/PMI constantly in reporting for the second subband CQI/PMI, reporting broadband CQI/PMI constantly in reporting for broadband CQI/PMI.
The second channel status information that S410, the base station report UE described in reception to report in the third.
As can be seen that in the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.Due to first report the moment and second report between the moment exist different from first reference resources reference resources, and first reports the moment and second that the time range between the moment is reported to be less than the time threshold, therefore, different from where the reference resources of first reference resources when
It carves and second reports the time range between the moment certainly less than time threshold; the channel status for reporting UE reporting in the updated constantly close to UE after channel status; ensure that the accuracy for the channel state information CSI that base station receives, so ensure the data transmission credibility and data transmission efficiency between base station and UE.
Referring to Fig. 5, the embodiment of the present invention also provides a kind of communication equipment, it may include: determination unit 501, updating unit 502, in which:
Above-mentioned determination unit 501, for determining that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information.
Above-mentioned updating unit 502 when meeting preset condition at the time of for where the determination unit 501 determines obtained first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
Optionally, after the first of determining first channel state information of above-mentioned determination unit 501 reports the moment, communication equipment shown in fig. 5 further include: reporting unit reports first channel state information for reporting the moment described first.
Optionally, it above-mentioned second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.
Optionally, above-mentioned second channel status information is the channel state information that priority is inferior to first channel state information.
Optionally, where above-mentioned first reference resources different at the time of at the time of where the second reference resources corresponding from the second channel status information.
Optionally, in above-mentioned updating unit 502, when meeting preset condition at the time of where the determination unit 501 determines obtained first reference resources, by first channel state information report the moment reported by described first be updated to constantly second report the moment after, above-mentioned reporting unit, is also used to report described second and reports first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
Optionally, in reporting unit after described second reports and report first channel state information constantly, above-mentioned reporting unit is also used to report in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
Optionally, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
It is understood that the function of each functional module of the UE of the present embodiment can be implemented according to the method in above method embodiment, specific implementation process is referred to the associated description of above method embodiment, and details are not described herein again.Functional module can be realized by hardware circuit some or all of in communication equipment, and functional module can also be realized by processor (such as digital signal processor) by completing to execute code or instruction some or all of in communication equipment.
As can be seen that in the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.Due to first report the moment and second report between the moment exist different from first reference resources reference resources, and first reports the moment and second that the time range between the moment is reported to be less than the time threshold, therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than time threshold, the channel status for reporting UE reporting in the updated constantly close to UE after channel status, ensure that the accuracy for the channel state information CSI that base station receives, so ensuring the data transmission credibility and data transmission efficiency between base station and UE.
Fig. 6 is referred to, the embodiment of the present invention also provides a kind of communication equipment, it may include: processor 601 and memory 602；Wherein, processor 601 and memory 602 are of coupled connections by bus 603.Wherein, the processor 601 can be by calling the code in the memory 601 or instructing to execute following steps:
Determine that the first of the first channel state information reports moment and first channel state information corresponding
First reference resources；
When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
Optionally, in some possible implementations of the present invention, after first channel state information of determination corresponding first reports the moment, the processor is also used to:
The moment is reported described first, reports first channel state information.
Optionally, in some possible implementations of the present invention, described second reports to set constantly for the corresponding first wife of second channel status information and reports the moment.
Optionally, in some possible implementations of the present invention, the second channel status information is the channel state information that priority is inferior to first channel state information.
Optionally, different at the time of at the time of where first reference resources where the second reference resources corresponding from the second channel status information in some possible implementations of the present invention.
Optionally, in some possible implementations of the present invention, it is described by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the processor is also used to:
It is reported described second and reports first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
Optionally, in some possible implementations of the present invention, described after described second reports and report first channel state information constantly, the processor is also used to:
It is reported in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
Optionally, in some possible implementations of the present invention, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；
Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
It is understood that the function of each functional module of the communication equipment of the present embodiment can be implemented according to the method in above method embodiment, specific implementation process is referred to the associated description of above method embodiment, and details are not described herein again.Functional module can be realized by hardware circuit some or all of in communication equipment, and functional module can also be realized by processor (such as digital signal processor) by completing to execute code or instruction some or all of in communication equipment.
As can be seen that in the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.Due to first report the moment and second report between the moment exist different from first reference resources reference resources, and first reports the moment and second that the time range between the moment is reported to be less than the time threshold, therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than time threshold, the channel status for reporting UE reporting in the updated constantly close to UE after channel status, ensure that the accuracy for the channel state information CSI that base station receives, so ensuring the data transmission credibility and data transmission efficiency between base station and UE.
Fig. 7 is referred to, Fig. 7 is a kind of structure chart of communication system disclosed by the embodiments of the present invention.As shown in fig. 7, the communication system includes communication equipment and base station, in which:
The base station, for sending channel state parameter information to the communication equipment, the channel state parameter information includes the parameter information for reporting the moment for determining reporting status information of channel；
The communication equipment sends channel state parameter information for receiving the communication equipment；Determine that the first channel state information corresponding first reports the moment and described first to report moment corresponding first reference resources according to the channel state parameter information；When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；
Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, and described first reports the moment and described second to report the moment
Between there are reference resources different from first reference resources, described first reports the moment and described second that time range between the moment is reported to be less than the time threshold.
In one embodiment, after determining that the first channel state information corresponding first reports the moment according to the channel state parameter information in the communication equipment,
The communication equipment is also used to report the moment described first, reports first channel state information；
The base station, first channel state information for being also used to report communication equipment described in reception to report first.
In one embodiment, it described second reports and sets for the corresponding first wife of second channel status information constantly and report the moment.
In one embodiment, the second channel status information is the channel state information that priority is inferior to first channel state information.
In one embodiment, where first reference resources different at the time of at the time of where the second reference resources corresponding from the second channel status information.
In one embodiment, the communication equipment by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the communication equipment is also used to:
It is reported described second and reports first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
In one embodiment, after described second reports and report first channel state information constantly, the communication equipment is also used to the communication equipment:
It is reported in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
In one embodiment, the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；
Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
It is understood that the communication equipment for including of the communication system of the present embodiment and base station can be according to described
Method specific implementation in embodiment of the method, specific implementation process are referred to the associated description of the method embodiment, and details are not described herein again.
As can be seen that in the embodiment of the present invention, when meeting preset condition at the time of where corresponding first reference resources of the first channel state information, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment.Due to first report the moment and second report between the moment exist different from first reference resources reference resources, and first reports the moment and second that the time range between the moment is reported to be less than time threshold, therefore, at the time of different from where the reference resources of first reference resources and second reports the time range between the moment certainly less than the time threshold, the channel status for reporting UE reporting in the updated constantly close to UE after channel status, ensure that the accuracy for the channel state information CSI that base station receives, so ensuring the data transmission credibility and data transmission efficiency between base station and UE.
It should be noted that, for the various method embodiments described above, for simple description, therefore, it is stated as a series of action combinations, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described, because according to the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know that, the embodiments described in the specification are all preferred embodiments, and related actions and modules are not necessarily necessary for the present invention.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device can be realized in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially all or part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, including some instructions are with so that a computer equipment (can be personal computer, server or network equipment etc.) performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, the various media that can store program code such as magnetic or disk.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (32)
- A kind of update method at reporting status information of channel moment characterized by comprisingDetermine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
- The method according to claim 1, wherein after first channel state information of determination corresponding first reports the moment, the method also includes:The moment is reported described first, reports first channel state information.
- Method according to claim 1 or 2, which is characterized in that described second reports and set for the corresponding first wife of second channel status information constantly and report the moment.
- According to the method described in claim 3, it is characterized in that, the second channel status information is the channel state information that priority is inferior to first channel state information.
- The method according to claim 3 or 4, which is characterized in that different at the time of at the time of where first reference resources where the second reference resources corresponding from the second channel status information.
- Described in any item methods according to claim 1~5, it is characterized in that, it is described by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the method also includes: reported described second and report first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
- According to the method described in claim 6, it is characterized in that, described after described second reports and report first channel state information constantly, the method also includes:It is reported in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel status Information is the identical channel state information of type of second channel status information the latter adjacent periods.
- Described in any item methods according to claim 1~7, which is characterized in that the serving cell that reference resources are located at user equipment (UE) was sent on exempting from licensed band in the period of data；Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
- A kind of communication equipment characterized by comprisingDetermination unit, for determining that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；Updating unit when meeting preset condition at the time of for where the determination unit determines obtained first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
- Communication equipment according to claim 9, which is characterized in that the communication equipment further include:Reporting unit reports first channel state information for reporting the moment described first.
- Communication equipment according to claim 9 or 10, which is characterized in that described second reports and set for the corresponding first wife of second channel status information constantly and report the moment.
- Communication equipment according to claim 11, which is characterized in that the second channel status information is the channel state information that priority is inferior to first channel state information.
- Communication equipment according to claim 11 or 12, which is characterized in that different at the time of at the time of where first reference resources where the second reference resources corresponding from the second channel status information.
- 9~13 described in any item communication equipments according to claim 1, which is characterized in thatThe reporting unit, is also used to report described second and reports first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
- Communication equipment according to claim 14, which is characterized in thatThe reporting unit, is also used to report in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
- According to the described in any item communication equipments of claim 9~15, which is characterized in that the serving cell that reference resources are located at user equipment (UE) was sent on exempting from licensed band in the period of data；Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
- A kind of communication equipment characterized by comprisingProcessor and memory；Wherein, the processor is by calling the code in the memory or instructing to execute following steps:Determine that the first of the first channel state information reports moment and corresponding first reference resources of first channel state information；When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, described first reports the moment and described second to report in the presence of the reference resources different from first reference resources between the moment, and described first reports the moment and described second that the time range between the moment is reported to be less than the time threshold.
- Communication equipment according to claim 17, which is characterized in that after first channel state information of determination corresponding first reports the moment, the processor is also used to:The moment is reported described first, reports first channel state information.
- Communication equipment described in 7 or 18 according to claim 1, which is characterized in that described second reports and set for the corresponding first wife of second channel status information constantly and report the moment.
- Communication equipment according to claim 19, which is characterized in that the second channel status information is the channel state information that priority is inferior to first channel state information.
- Communication equipment described in 9 or 20 according to claim 1, which is characterized in that different at the time of at the time of where first reference resources where the second reference resources corresponding from the second channel status information.
- 7~21 described in any item communication equipments according to claim 1, which is characterized in that it is described by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the processor is also used to:It is reported described second and reports first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
- Communication equipment according to claim 22, which is characterized in that described after described second reports and report first channel state information constantly, the processor is also used to:It is reported in third and reports the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
- According to the described in any item communication equipments of claim 9~23, which is characterized in that the serving cell that reference resources are located at user equipment (UE) was sent on exempting from licensed band in the period of data；Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
- A kind of communication system, which is characterized in that including communication equipment and base station, in which:The base station, for sending channel state parameter information to the communication equipment, the channel state parameter information includes the parameter information for reporting the moment for determining reporting status information of channel；The communication equipment sends channel state parameter information for receiving the communication equipment；Determine that the first channel state information corresponding first reports the moment and described first to report moment corresponding first reference resources according to the channel state parameter information；When meeting preset condition at the time of where first reference resources, first channel state information is reported the moment to be reported by described first to be updated to second constantly and report the moment；Wherein, at the time of the preset condition is the first reference resources place and described first reports the time range between the moment to be greater than or equal to time threshold, and described first reports the moment and described second to report the moment Between there are reference resources different from first reference resources, described first reports the moment and described second that time range between the moment is reported to be less than the time threshold.
- System according to claim 25, which is characterized in that after the communication equipment determines that the first channel state information corresponding first reports the moment according to the channel state parameter information,The communication equipment is also used to report the moment described first, reports first channel state information；The base station, first channel state information for being also used to report communication equipment described in reception to report first.
- The system according to claim 25 or 26, which is characterized in that described second reports and set for the corresponding first wife of second channel status information constantly and report the moment.
- System according to claim 27, which is characterized in that the second channel status information is the channel state information that priority is inferior to first channel state information.
- The system according to claim 27 or 28, which is characterized in that different at the time of at the time of where first reference resources where the second reference resources corresponding from the second channel status information.
- According to the described in any item systems of claim 25~29, it is characterized in that, the communication equipment by first channel state information report the moment reported by described first be updated to constantly second report the moment after, the communication equipment is also used to: being reported described second and is reported first channel state information and the second channel status information constantly；First channel state information is reported constantly alternatively, reporting described second.
- System according to claim 30, which is characterized in that after described second reports and report first channel state information constantly, the communication equipment is also used to the communication equipment: being reported in third and is reported the second channel status information constantly；The third report constantly for described second report the after the moment adjacent described second channel state information for reporting the moment report the moment；Alternatively, the third, which reports to set constantly for the first wife of third channel state information, reports the moment, the third channel state information is the identical channel state information of type of second channel status information the latter adjacent periods.
- According to the described in any item methods of claim 25~31, which is characterized in that the serving cell that reference resources are located at communication equipment was sent on exempting from licensed band in the period of data；Wherein, the reference resources include the reference signal of measure channel state information, the reference signal include at least it is following any one: cell common reference signal CRS, signal status information reference signal CSI-RS, demodulated reference signal DMRS and discovery reference signal DRS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/090562 WO2017049533A1 (en) | 2015-09-24 | 2015-09-24 | Method for updating moment of reporting channel state information, and communication device and system |
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| CN108028720A true CN108028720A (en) | 2018-05-11 |
| CN108028720B CN108028720B (en) | 2020-05-15 |
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| WO2017049533A1 (en) | 2017-03-30 |
| CN108028720B (en) | 2020-05-15 |
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