CN102291752A - Channel state information feedback method and equipment - Google Patents
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Abstract
The embodiment of the invention provides a channel state information feedback method, which comprises the following steps that: user equipment (UE) receives information sent by a base station, and the information comprises frequency band subset information used for channel measurement; the UE carries out measurement on channels corresponding to the channel measuring frequency band subset, and measuring information is sent to the base station through a physical uplink shared channel (PUSCH) according to channel measuring reporting mode configuration. The embodiment of the invention also provides the UE on the other hand. Through the technical scheme provided by the invention, the problem of pre-coding performance loss caused under the condition of great antenna calibration error because long-time/broadband program management instruction (PMI) in the existing two-stage feedback scheme can only feed back one broadband PMI for each communication center (CC) is solved.
Description
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to the method and apparatus of channel condition information feedback.
Background technology
Move the developing direction that becomes modern communication technology with the broadband, 3GPP (3rd GenerationPartnership Project, third generation partner program) is devoted to LTE (Long TermEvolution, Long Term Evolution) system is as the evolution of 3G system, and target is that development 3GPP wireless access technology is towards high data rate, the low delay and the evolution of optimization packet data application direction.In the Point-to-Point Communication System, if transmitter can obtain certain CSI (Channel State Information, channel condition information) just can be optimized to make and send signal and be complementary, can realize enhancing signal reception reliability, reduction effect the requirement of reception algorithm complex with this with the dissemination channel characteristic to the spatial characteristics of the modulation system, code rate and the signal power that send signal; In multi-user system, transmitter can be dispatched judgement according to the CSI of its acquisition, avoids with the improvement of realization system spectral efficiency and the interference between the sub-district.
Base station eNB can be utilized channel reciprocity or UE (User Equipment among the LTE Rel-8/9, subscriber equipment) feedback obtains the CSI of down channel, wherein several main transmission mode of PDSCH (Physical Downlink SharedChannel, Physical Downlink Shared Channel) has all adopted the implicit expression CSI feedback method based on code book.The PMI of transmission mode 4,5,6 and transmission mode 8 reports in the pattern UE based on CRS (Cell-specific Reference Signal, the specific cell reference signal) measures down channel, and reporting the number of data streams (RI) that down link can support and the label (PMI) of pre-coding matrix to eNB according to himself reception Processing Algorithm, UE also needs to report the channel quality (CQI) of each code word simultaneously.Wherein, UE supposes that eNB has used the RI/PMI of its recommendation in the computational process of CQI.
The pre-coding scheme based on code book that adopts among the LTE Rel-8/9 mainly lays particular emphasis on single user's application scenarios, and Rel-10 (LTE-A:LTE-Advanced, LTE is senior) in will further optimize at precoding and feedback mechanism thereof, to support multi-user's scene better.According to present discussion result, LTE-A for the basic demand of feedback enhanced scheme is: under the prerequisite that keeps low feedback overhead, improve the CSI feedback accuracy as far as possible.Under above-mentioned background, substantially determined at present will in Rel-10, adopt based on dicode feedback scheme originally.In this scheme, channel information is divided into comparatively stable long-term/broadband CSI and the short-term/frequency selectivity CSI two parts with higher time/frequency selectivity.UE can quantize above-mentioned CSI respectively with two code books according to different feedback cycles, and feeds back corresponding PMI.The PMI-1 that wherein reflects long-term/broadband CSI has higher spatial resolution, but can be that unit feeds back with the bigger cycle and with bigger bandwidth.PMI-2 is used to reflect the fast change part of CSI, need be that unit also feeds back with lower feedback cycle with the subband.Because the equivalent channel matrix that channel and PMI-1 are combined to form may have lower dimension, generally speaking PMI-2 only need quantize the CSI of low dimension, so the bit number of PMI-2 is less.
In the existing version (Rel-8/9) of LTE, high level can configuration UE adopts PUCCH to carry out periodicity to report and adopt PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) to carry out reporting aperiodic.In existing standard, exist 5 kinds of PUSCH to report pattern.UE also is configured by high level by the PUSCH employed pattern that reports of carrying out giving the correct time on aperiodic.Provide PUSCH among the LTE Rel8/9 in the table 1 and reported corresponding relation between pattern and the CQI/PMI feedback kind.
Table 1.PUSCH reports pattern and CQI/PMI feedback kind
According to existing standard and at present the mode reached in discussing of LTE-A advance, PUCCH and PUSCH report content and report the process should be independent fully.Therefore in Rel-10, need to introduce new PUCCH respectively and PUSCH reports scheme, to support two-stage feedback mechanism based on this structure of dicode.Existing P UCCH and PUSCH report mechanism to design at this structure of solid size, can't be used for this feedback scheme of dicode of Rel-10.
In addition, tend in existing this feedback scheme of dicode PMI-1 is used for each CC (Component Carrier, member carrier).And in fact, all can have certain time delay between the radio-frequency transmissions circuit of any two antennas, the maximum of LTE regulation can not surpass 65ns.Shi Yanhui causes the phase place rotation in the frequency domain, and the phase place rotation size that 65ns causes in the 20M bandwidth range is 2 π * 65 * 10
-9* 20 * 10
6Therefore=2.6 π do not have a precoding vector and are fit to whole 20M bandwidth.If code book 8DFT vector, the differential seat angle between two then adjacent vectors is π/4, and the bandwidth range that then can use same precoding vector is
Be the 2M bandwidth.May also can not bring too big performance loss even consider deviation to adjacent precoding vector, bandwidth range can be loosened to 5M.If require to use in the whole 20M bandwidth range same precoding vector, then the time delay value between two antennas is less than 5ns, and this can not realize substantially.
Therefore, be necessary to propose a kind of effective channel condition information feedback scheme, make the base station can understand the channel condition of UE better, thus can the optimization system performance.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, special UE selects certain specific frequency band subclass to measure according to the indication information of eNB, and report channel condition information in this segment limit, thereby realize feeding back channel state information effectively, make the base station can understand the channel condition of UE better, can the optimization system performance.
In order to achieve the above object, embodiments of the invention have proposed a kind of method of channel condition information feedback on the one hand, may further comprise the steps:
User equipment (UE) receives the base station and sends information, and described information comprises the frequency band subset information of carrying out channel measurement; Described UE measures the channel of the frequency band subclass correspondence of described channel measurement, reports pattern configurations according to channel measurement, sends metrical information by Physical Uplink Shared Channel PUSCH to described base station.
Embodiments of the invention have also proposed a kind of user equipment (UE) on the other hand, comprise receiver module, measurement module and sending module,
Described receiver module is used to receive the base station and sends information, and described information comprises the frequency band subset information of carrying out channel measurement; Described measurement module is used for the channel of the frequency band subclass correspondence of described channel measurement is measured; Described sending module is used for reporting pattern configurations according to channel measurement, sends metrical information by Physical Uplink Shared Channel PUSCH to described base station.
The such scheme that the present invention proposes, the long-term/broadband P MI that has solved in the existing two-stage feedback scheme can only under the bigger situation of antenna calibration error, can cause the problem of precoding performance loss with at broadband P MI of each CC feedback.The such scheme that the present invention proposes, UE selects certain specific frequency band subclass to measure according to the indication information of eNB, and report channel condition information in this segment limit, thereby realize feeding back channel state information effectively, make the base station can understand the channel condition of UE better, can the optimization system performance.The such scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the flow chart of embodiment of the invention channel state information feedback method;
Fig. 2 is the structural representation of embodiment of the invention channel condition information feedback device.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention proposes each CC and be divided into some frequency subsets, claim that each subclass is a BS (Bandwidth Segment, a bandwidth).ENB measures certain or some BS by control signaling indication UE, and UE feeds back the CSI on this BS according to the pattern that reports that high level disposed.
In order to realize the present invention's purpose, the invention discloses a kind of method of channel condition information feedback, may further comprise the steps: user equipment (UE) receives the base station and sends information, and described information comprises the frequency band subset information of carrying out channel measurement; Described UE measures the channel of the frequency band subclass correspondence of described channel measurement, reports pattern configurations according to channel measurement, sends metrical information by Physical Uplink Shared Channel PUSCH to described base station.
As shown in Figure 1, the flow chart for embodiment of the invention channel state information feedback method may further comprise the steps:
S110: user equipment (UE) receives the base station and sends information, comprising the frequency band subset information of carrying out channel measurement.
In step S110, the base station is divided into some BS with each CC in advance.Suppose that each CC is divided into J BS, the size of j BS is BS
j, 1≤j≤J.For example: if the RB quantity that each CC comprises is
Can define
Then each CC comprises
Individual BS.BS
1～BS
J-1Size be P, and BS
jSize be
Particularly, user equipment (UE) reception base station transmission information comprises:
UE receives the dynamic indication information that the base station sends to UE by the L1/L2 signaling; Perhaps, consider that the bearing capacity of L1/L2 control channel is limited, also can carry out semi-static indication to reporting scope by high-level signaling, its indicating mode also can adopt:
UE receives the semi-static indication information that the base station sends to UE by high-level signaling.
Wherein, dynamically indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in DCI
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in DCI, the length of described bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in DCI
Wherein, semi-static indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in high-level signaling
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in high-level signaling, the length of this bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in high-level signaling
S120:UE measures the channel of the frequency band subclass correspondence of channel measurement and sends metrical information to the base station.
In step S120, UE measures the channel of the frequency band subclass correspondence of channel measurement, reports pattern configurations according to channel measurement, and PUSCH sends metrical information to the base station by Physical Uplink Shared Channel.
Introduce two kinds of new patterns that report in the present embodiment and be used for the segmentation feedback of secondary code book in PUSCH reports, particularly, channel measurement reports pattern configurations to comprise following any one mode:
Mode A: reporting information comprises: the numbering PMI of the long-term pre-coding matrix on number of data streams RI, the frequency band range is just PMI-2 and the CQI channel condition information of each code word on each subband that go out according to above-mentioned information calculations of the PMI of each subband on PMI-1, the frequency band range just;
Mode B: reporting information comprises: the long-term PMI on RI, the frequency band range is just PMI-2 and the CQI of each code word on each subband that go out according to above-mentioned information calculations of the PMI on PMI-1, the frequency band range just.
Therefore, by said method, UE measures channel according to L1/L2 control signaling or the indicated frequency band subclass of high-level signaling, and generates various reporting informations according to the pattern that reports that high-level signaling disposed, and reports by PUSCH.
The said method that the present invention proposes, the long-term/broadband P MI that has solved in the existing two-stage feedback scheme can only under the bigger situation of antenna calibration error, can cause the problem of precoding performance loss with at broadband P MI of each CC feedback.The said method that the present invention proposes, UE selects certain specific frequency band subclass to measure according to the indication information of eNB, and report channel condition information in this segment limit, thereby realize feeding back channel state information effectively, make the base station can understand the channel condition of UE better, can the optimization system performance.The said method that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.
As shown in Figure 2, the embodiment of the invention also discloses a kind of user equipment (UE) 100, comprise receiver module 110, measurement module 120 and sending module 130.
Wherein, receiver module 110 is used to receive the base station and sends information, and information comprises the frequency band subset information of carrying out channel measurement.
Particularly, the frequency band subset information of channel measurement comprises:
The base station is divided into some BS with each CC in advance.Suppose that each CC is divided into J BS, the size of j BS is BS
j, 1≤j≤J.For example: if the RB quantity that each CC comprises is
Can define
Then each CC comprises
Individual BS.BS
1～BS
J-1Size be P, and BS
jSize be
Particularly, receiver module 110 reception base station transmission information comprise:
Wherein, dynamically indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in DCI
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in DCI, the length of bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in DCI
Wherein, semi-static indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in high-level signaling
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in high-level signaling, the length of this bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in high-level signaling
Sending module 130 is used for reporting pattern configurations according to channel measurement, and PUSCH sends metrical information to the base station by Physical Uplink Shared Channel.
The channel measurement that receiver module 110 receives reports pattern configurations to comprise following any one mode:
Mode A: reporting information comprises: the numbering PMI of the long-term pre-coding matrix on number of data streams RI, the frequency band range is just PMI-2 and the CQI channel condition information of each code word on each subband that go out according to above-mentioned information calculations of the PMI of each subband on PMI-1, the frequency band range just;
Mode B: reporting information comprises: the long-term PMI on RI, the frequency band range is just PMI-2 and the CQI of each code word on each subband that go out according to above-mentioned information calculations of the PMI on PMI-1, the frequency band range just.
Therefore, by the said equipment, UE100 measures channel according to L1/L2 control signaling or the indicated frequency band subclass of high-level signaling, and generates various reporting informations according to the pattern that reports that high-level signaling disposed, and reports by PUSCH.
The said equipment that the present invention proposes, the long-term/broadband P MI that has solved in the existing two-stage feedback scheme can only under the bigger situation of antenna calibration error, can cause the problem of precoding performance loss with at broadband P MI of each CC feedback.The said equipment that the present invention proposes, UE selects certain specific frequency band subclass to measure according to the indication information of eNB, and report channel condition information in this segment limit, thereby realize feeding back channel state information effectively, make the base station can understand the channel condition of UE better, can the optimization system performance.The said equipment that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.
One of ordinary skill in the art will appreciate that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. the method for a channel condition information feedback is characterized in that, may further comprise the steps:
User equipment (UE) receives the base station and sends information, and described information comprises the frequency band subset information of carrying out channel measurement;
Described UE measures the channel of the frequency band subclass correspondence of described channel measurement, reports pattern configurations according to channel measurement, sends metrical information by Physical Uplink Shared Channel PUSCH to described base station.
2. the method for channel condition information feedback as claimed in claim 1 is characterized in that described channel measurement reports pattern configurations to comprise following any one mode:
Mode A: reporting information comprises: the PMI of each subband and the CQI channel condition information of each code word on each subband that go out according to above-mentioned information calculations on the numbering PMI of the long-term pre-coding matrix on number of data streams RI, the frequency band range, the frequency band range;
Mode B: reporting information comprises: the long-term PMI on RI, the frequency band range, the PMI on the frequency band range and the CQI of each code word on each subband that goes out according to above-mentioned information calculations.
3. the method for channel condition information feedback as claimed in claim 1 is characterized in that described frequency band subset information comprises:
Each member carrier CC is divided into J frequency subsets BS, and the size of j BS is BS
j, 1≤j≤J.
4. the method for channel condition information feedback as claimed in claim 3 is characterized in that, described user equipment (UE) receives base station transmission information and comprises:
Described UE receives the dynamic indication information that described base station sends to described UE by the L1/L2 signaling;
Described UE receives the semi-static indication information that described base station sends to described UE by high-level signaling.
5. the method for channel condition information feedback as claimed in claim 4 is characterized in that described dynamic indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in DCI
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in DCI, the length of described bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in DCI
6. the method for channel condition information feedback as claimed in claim 4 is characterized in that described semi-static indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in high-level signaling
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in high-level signaling, the length of this bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in high-level signaling
7. a user equipment (UE) is characterized in that, comprises receiver module, measurement module and sending module,
Described receiver module is used to receive the base station and sends information, and described information comprises the frequency band subset information of carrying out channel measurement;
Described measurement module is used for the channel of the frequency band subclass correspondence of described channel measurement is measured;
Described sending module is used for reporting pattern configurations according to channel measurement, sends metrical information by Physical Uplink Shared Channel PUSCH to described base station.
8. user equipment (UE) as claimed in claim 7 is characterized in that, the channel measurement that described receiver module receives reports pattern configurations to comprise following any one mode:
Mode A: reporting information comprises: the PMI of each subband and the CQI channel condition information of each code word on each subband that go out according to above-mentioned information calculations on the numbering PMI of the long-term pre-coding matrix on number of data streams RI, the frequency band range, the frequency band range;
Mode B: reporting information comprises: the long-term PMI on RI, the frequency band range, the PMI on the frequency band range and the CQI of each code word on each subband that goes out according to above-mentioned information calculations.
9. user equipment (UE) as claimed in claim 7 is characterized in that, described frequency band subset information comprises:
Each member carrier CC is divided into J frequency subsets BS, and the size of j BS is BS
j, 1≤j≤J.
10. user equipment (UE) as claimed in claim 9 is characterized in that, described receiver module receives base station transmission information and comprises:
Described receiver module receives the dynamic indication information that described base station sends to described UE by the L1/L2 signaling;
Described receiver module receives the semi-static indication information that described base station sends to described UE by high-level signaling.
11. user equipment (UE) as claimed in claim 10 is characterized in that, described dynamic indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in DCI
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in DCI, the length of described bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in DCI
12. user equipment (UE) as claimed in claim 10 is characterized in that, described semi-static indication information comprises following any one mode:
Indicating mode one: indication reports the initial BS label of scope in high-level signaling
And the frequency domain span of measuring range
Indicating mode two: adopt the mode of Bitmap to indicate the BS set that need report in high-level signaling, the length of this bitmap is J, if j element is that 0 expression does not need BS
jCSI report, otherwise the expression need report BS
jOn CSI;
Indicating mode three: indication need be carried out the BS label that CSI reports in high-level signaling
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103188710A (en) * | 2011-12-30 | 2013-07-03 | 华为技术有限公司 | Channel state information measuring method and system and base station and user equipment |
| WO2013107053A1 (en) * | 2012-01-20 | 2013-07-25 | Nokia Siemens Networks Oy | Enhanced channel state information reporting for downlink control channel |
| CN103368697A (en) * | 2012-03-26 | 2013-10-23 | 中兴通讯股份有限公司 | Method and device for cooperative CQI and/or inter-node PCI feedback |
| WO2014008633A1 (en) * | 2012-07-10 | 2014-01-16 | 华为技术有限公司 | Channel quality indicator acquisition method, user equipment, and evolved node b and system |
| CN104184562A (en) * | 2014-08-20 | 2014-12-03 | 江苏中兴微通信息科技有限公司 | Method and device for reconstituting channel state information self-adaptive interpolation |
| CN105208656A (en) * | 2014-06-19 | 2015-12-30 | 上海贝尔股份有限公司 | Method for distributing channel band for LTE-U system and device |
| WO2018059347A1 (en) * | 2016-09-30 | 2018-04-05 | 中兴通讯股份有限公司 | Response processing, response configuration, information transmission methods and apparatuses, terminal and base station |
| CN107925532A (en) * | 2015-09-17 | 2018-04-17 | 英特尔Ip公司 | The transmission of uplink control information in wireless system |
| CN109600193A (en) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | A kind of channel measuring method |
| WO2019072073A1 (en) * | 2017-10-10 | 2019-04-18 | 华为技术有限公司 | Channel measurement method and apparatus |
| CN110351869A (en) * | 2013-12-31 | 2019-10-18 | 华为技术有限公司 | Method and device for measure channel state information |
| CN114365425A (en) * | 2019-07-19 | 2022-04-15 | 株式会社Ntt都科摩 | Terminal and wireless communication method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047493A1 (en) * | 2005-07-05 | 2007-03-01 | Lg Electronics Inc. | Method of transmitting and receiving radio access information in a wireless mobile communications system |
| CN101133615A (en) * | 2005-01-05 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting/receiving channel quality information in a communication system |
| CN101155401A (en) * | 2006-09-30 | 2008-04-02 | 北京三星通信技术研究有限公司 | Device and method for commuting CQI transmission mode |
-
2010
- 2010-06-21 CN CN2010102122715A patent/CN102291752A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133615A (en) * | 2005-01-05 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting/receiving channel quality information in a communication system |
| US20070047493A1 (en) * | 2005-07-05 | 2007-03-01 | Lg Electronics Inc. | Method of transmitting and receiving radio access information in a wireless mobile communications system |
| CN101155401A (en) * | 2006-09-30 | 2008-04-02 | 北京三星通信技术研究有限公司 | Device and method for commuting CQI transmission mode |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103188710A (en) * | 2011-12-30 | 2013-07-03 | 华为技术有限公司 | Channel state information measuring method and system and base station and user equipment |
| CN103188710B (en) * | 2011-12-30 | 2016-05-18 | 华为技术有限公司 | Channel condition information measuring method and system, base station and subscriber equipment |
| WO2013107053A1 (en) * | 2012-01-20 | 2013-07-25 | Nokia Siemens Networks Oy | Enhanced channel state information reporting for downlink control channel |
| CN103368697A (en) * | 2012-03-26 | 2013-10-23 | 中兴通讯股份有限公司 | Method and device for cooperative CQI and/or inter-node PCI feedback |
| WO2014008633A1 (en) * | 2012-07-10 | 2014-01-16 | 华为技术有限公司 | Channel quality indicator acquisition method, user equipment, and evolved node b and system |
| US9794818B2 (en) | 2012-07-10 | 2017-10-17 | Huawei Technologies Co., Ltd. | Method for acquiring channel quality indicator, user equipment, evolved node B and system |
| CN110351869A (en) * | 2013-12-31 | 2019-10-18 | 华为技术有限公司 | Method and device for measure channel state information |
| CN110351869B (en) * | 2013-12-31 | 2023-06-06 | 华为技术有限公司 | Method and device for measuring channel state information |
| CN105208656A (en) * | 2014-06-19 | 2015-12-30 | 上海贝尔股份有限公司 | Method for distributing channel band for LTE-U system and device |
| CN105208656B (en) * | 2014-06-19 | 2019-05-17 | 上海诺基亚贝尔股份有限公司 | The method and apparatus of distribution channel band suitable for LTE-U system |
| CN104184562B (en) * | 2014-08-20 | 2017-11-10 | 江苏中兴微通信息科技有限公司 | A kind of channel condition information adaptive-interpolation reconstructing method and device |
| CN104184562A (en) * | 2014-08-20 | 2014-12-03 | 江苏中兴微通信息科技有限公司 | Method and device for reconstituting channel state information self-adaptive interpolation |
| CN107925532A (en) * | 2015-09-17 | 2018-04-17 | 英特尔Ip公司 | The transmission of uplink control information in wireless system |
| US11399366B2 (en) | 2015-09-17 | 2022-07-26 | Apple Inc. | Transmission of uplink control information in wireless systems |
| WO2018059347A1 (en) * | 2016-09-30 | 2018-04-05 | 中兴通讯股份有限公司 | Response processing, response configuration, information transmission methods and apparatuses, terminal and base station |
| CN107888340A (en) * | 2016-09-30 | 2018-04-06 | 中兴通讯股份有限公司 | Reply process, response configuration, information transferring method, device, terminal and base station |
| CN109600193A (en) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | A kind of channel measuring method |
| US11290906B2 (en) | 2017-09-30 | 2022-03-29 | Huawei Technologies Co., Ltd. | Channel measurement method |
| WO2019072073A1 (en) * | 2017-10-10 | 2019-04-18 | 华为技术有限公司 | Channel measurement method and apparatus |
| US11445396B2 (en) | 2017-10-10 | 2022-09-13 | Huawei Technologies Co., Ltd. | Channel measurement method and apparatus |
| CN114365425A (en) * | 2019-07-19 | 2022-04-15 | 株式会社Ntt都科摩 | Terminal and wireless communication method |
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