CN102685038A - Method and system for bundling and demodulating demodulation pilot frequency physical resource block (PRB) - Google Patents
Method and system for bundling and demodulating demodulation pilot frequency physical resource block (PRB) Download PDFInfo
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Abstract
The invention discloses a method and a system for bundling and demodulating a demodulation pilot frequency physical resource block (PRB), which solves the problems that the frequency diversity gain is greatly restricted in PRB bundling, and under a Fallback mode, the gain of the PRB bundling in high-order transmission is not significantly reflected, the frequency diversity gain is affected, so that the reliability of the Fallback mode is reduced. According to the invention, a network side instructs a receiving side whether to carry out joint channel estimation and demodulation according to a precoding resource group (PRG) through configuring a transmission mode, a downlink control information format and a feedback mode; a channel estimation method is dynamically and flexibly adjusted according to different downlink control information formats under a Normal mode and the Fallback mode, so that the channel estimation gain of PRB bundling and the frequency diversity gain of No-PRB bundling are fully utilized, and the reliability and the average turnover of a system are improved.
Description
Technical field
(Long term evolution advanced system LTE-Advanced), specifically, relates among the LTE-Advanced to bind based on the demodulation pilot frequency Physical Resource Block method and system of demodulation to the present invention relates to the Long Term Evolution AS.
Background technology
In LTE Release8/9 in order quality of channel to be measured and the data symbol that receives to be carried out demodulation designed CRS (Common Reference Signal; Public reference signal); UE (UserEquipment; Subscriber equipment) can carry out the measurement of channel through CRS, thereby decision UE carries out district reselecting and switches to Target cell, and carry out the measurement of channel quality in the UE connection status; When disturbing rank higher, physical layer can be broken off through high-rise relevant Radio Link connection failure signaling and being connected.In LTER10 in order further to improve the average availability of frequency spectrum in sub-district and the throughput of the cell edge availability of frequency spectrum and each UE; Two kinds have been defined respectively with reference to signal: CSI-RS (channel state information reference signals) and DMRS (demodulated reference signal); Wherein, CSI-RS is used for the measurement of channel, and can calculate UE through the measurement to CSI-RS need be to PMI (Precoding Matrix Indicator, pre-coding matrix index), CQI (the Channel Quality Indicator of eNB feedback; Channel quality information is indicated) and RI (RankIndicator, order indication).CSI-RS is sparse in the distribution of time domain and frequency domain; And to guarantee at a RB (Resource Block; Subframe) pilot density that only comprises a CSI-RS of each antenna port of Serving cell in, and be used as cycle of CSI-RS with the multiple of 5ms in time domain.Sparse CSI-RS can support eNodeB 8 arrangement of antennas, and has advantageously supported to face the cell measurement configuration.On 3GPP 61bis standards meetings, pass through the pilot tone mapping pattern of CSI-RS, stipulated the pilot tone mapping pattern between different districts and same sub-district different antennae.
In the discussion formerly, consider the accuracy of DMRS channel estimating, require to separate timing and will consider to carry out a plurality of PRB (Precoding Resource Block at use DMRS; The precoding Resource Block) binding (Bundling); Carry out channel estimating thereby can a plurality of PRB unite, thereby improve the accuracy of channel estimating, adopt with PRG (Precoding Resource Group through general debate; Precoding resource group) for unit carries out the binding of PRB, PRG's is big or small as shown in table 1.
Table 1
Emulation through each company of meeting; Utilize PRB can bring bigger channel estimation accuracy gain really; Thereby improved the average throughput of system, and the gain of this throughput is more obvious when eNodeB adopts the high order of mode of SU-MIMO to transmit to UE.Consider under the mode of TDD and open loop MIMO (Multiple-Input Multiple-Out-put, multiple-input and multiple-output) and will utilize frequency diversity gain, based on subcarrier or independently PRB carry out precoding.Decision is when adopting sending mode 9 (TM9) on the expense of the final signaling of considering and the basis of performance gain, if UE has disposed the PMI/RI feedback, then UE will carry out PRB Bundling and comes the DMRS on a plurality of PRBs is carried out combined channel estimation and demodulation.
Two kinds of descending control information formats (DCI) have been disposed through under the discussion TM9 mode of up-to-date meeting; Wherein DCI Format 1A is TM9 Fallback pattern; Under this DCI Format 1A, support transmission branch collection (TxD) mode based on the demodulation of CRS; And when being operated in Multicast Broadcast Single Frequency Network (Multicast Broadcast Single Frequency Network MBSFN) can utilize port 7 to send data during subframe.
Both integrate; The problem that certainly will bring be exactly the Fallback pattern be dynamic-configuration, just find the rapid variation of certain time point channel when base station (eNodeB), perhaps CQI and PMI feed back when inaccurate; Just will consider and utilize the Fallback pattern to transmit number; The Fallback pattern can be used for sending some data messages on the one hand, can send Radio Resource control (Radio Resource Control, RRC) signaling on the one hand; Thereby notice UE need reconfigure sending mode, and at this moment the accuracy of RRC signaling certainly will need to guarantee.If at this moment be operated under the TM9; And the previous semi-static UE that disposed need feed back PMI/CQI, and at this moment UE need carry out combined channel and estimates, if at this moment be operated under the DCI Format 1A; It is to there is no need to limit with above PRB Bundling that UE comes demodulation with CRS; Can reduce the enforcement flexibility of UE like this, and increase the enforcement complexity of UE, because UE needs extra judging whether to need Bundling.If at this moment be operated in the MBSFN subframe; Owing to can only send data or signaling with port 7; So be not allow VRB (Virtual Resource Block in this case; Virtual resource blocks) employing distributed (distributed) Physical Resource Block is to this mapping mode of virtual resource blocks; Carry out the mapping between Physical Resource Block and the virtual resource blocks so can only adopt, and this mode of 1A utilizes resource distribution mode type 2 to come Resources allocation, will certainly make that like this a plurality of resources of giving a UE are continuous based on centralized (Localized) mode.Thereby cause and be operated under the 1A UE and certainly will carry out a plurality of PRB combined channels according to the size of PRB Bundling and estimate.This mode will certainly influence the demodulation performance of UE because under the Fallback pattern, will make full use of frequency diversity gain, and since the inaccuracy of PMI/CQI to travel through possible PMI as far as possible and handle, thereby obtain the diversity gain of code book level.Because the great limit frequency diversity gain of PRB Bundling meeting; And the Fallback pattern only utilizes port 7 to send number; PRB Bundling does not significantly embody in the gain of high order transmission like this; Also can have influence on frequency diversity gain, thereby make the reliability decrease of Fallback pattern.
Summary of the invention
In view of this; Main purpose of the present invention is to provide a kind of demodulation pilot frequency Physical Resource Block to bind the method and system of demodulation; Be used to solve the great limit frequency diversity gain of PRB binding meeting, and under the Fallback pattern, the gain that PRB is bundled in high order transmission does not embody obviously; Also can influence frequency diversity gain, thereby make the problem of reliability decrease of Fallback pattern.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of demodulation pilot frequency Physical Resource Block is bound the method for demodulation, and this method comprises:
Network side indicates receiver side whether to carry out combined channel estimation and demodulation according to precoding resource group PRG through configuration transmission mode, descending control information format and feedback model.
Further, the transmission mode of network side configuration receiver side employing is a transmission mode 9; Said network side configuration receiver side need feed back pre-coding matrix index PMI/ channel quality information indication CQI when feedback; The descending control information format that said network side utilization is disposed comes recessive indication receiver side whether to carry out combined channel estimation and demodulation according to precoding resource group PRG.
Further, whether said indication receiver side carries out according to precoding resource group PRG that combined channel is estimated and demodulation is specially:
The indication receiver side adopts demodulation pilot frequency or adopts public guide frequency to carry out channel estimating and demodulation, and the indication receiver side according to or be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation not according to precoding resource group PRG.
Further, the descending control information format that disposed of said network side utilization comes recessive indication receiver side whether to carry out combined channel according to precoding resource group PRG to estimate to conciliate accord method and be:
Said network side utilizes descending control information format 2C to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side will be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
Further, the descending control information format that disposed of said network side utilization comes recessive indication receiver side whether to carry out combined channel according to precoding resource group PRG to estimate to conciliate accord method and be:
When said network side is configured in conventional Normal subframe; Utilize descending control information format 1A to come recessive indication receiver side to adopt public guide frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
Further, the descending control information format that disposed of said network side utilization comes recessive indication receiver side whether to carry out combined channel according to precoding resource group PRG to estimate to conciliate accord method and be:
When said network side is configured in Multicast Broadcast Single Frequency Network MBSFN subframe; Utilize descending control information format 1A to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
Based on the embodiment of the invention, the present invention also proposes the system that a kind of demodulation pilot frequency Physical Resource Block is bound demodulation, comprises network side and receiver side,
Network side is used for indicating receiver side whether to carry out combined channel according to precoding resource group PRG through configuration transmission mode, descending control information format and feedback model and estimates and demodulation;
Receiver side is used to receive the configuration of network side, and determines whether that according to the configuration of network side carrying out combined channel according to precoding resource group PRG estimates and demodulation.
The present invention is under Normal and Fallback pattern; According to different descending control information formats; The adjustment channel estimating mode of dynamic flexible, thus make full use of the channel estimation gains of PRB binding and the frequency diversity gain that No-PRB binds, improved the reliability and the average throughput of system.
Description of drawings
Fig. 1 is the demodulation method flow chart that demodulation pilot frequency Physical Resource Block provided by the invention is bound;
The demodulation method flow chart that Fig. 2 binds for the demodulation pilot frequency Physical Resource Block that the specific embodiment of the invention provides.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
Fig. 1 is the demodulation method flow chart that demodulation pilot frequency Physical Resource Block provided by the invention is bound, and this method comprises:
The transmission mode 9 that step 101, network side configuration receiver side adopt, the configuration receiver side is feedback PMI/CQI when feeding back, and comes recessive indication receiver side whether to carry out combined channel estimation and demodulation according to PRG through the descending control information format of configuration;
The configuration about transmission mode and feedback model of step 102, receiver side reception and application network side; And to confirm to adopt demodulation pilot frequency according to the descending control information format of network side configuration still be to adopt public guide frequency to carry out channel estimating and demodulation, and confirm according to or be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation not according to PRG.
The refinement flow chart of the demodulation method that the demodulation pilot frequency Physical Resource Block that Fig. 2 provides for the present invention's one specific embodiment is bound, detailed step is following:
The transmission mode 9 that step 201, network side configuration receiver side adopt, the configuration receiver side is feedback PMI/CQI when feedback, and descending control information format is configured, and then configuration is sent to receiver side;
Said descending control information format comprises descending control information format 2C or descending control information format 1A;
Said network side refers to macro base station (Macro eNodeB), little base station (Pico), relay station (Relay), Home eNodeB (Home eNodeB) etc., and described receiver side refers to UE, little base station (Pico), relay station (Relay), Home eNodeB (Home eNodeB) etc.;
The configuration of step 202, receiver side reception and application network side;
Step 203, receiver side carry out the Physical Downlink Control Channel blind check to subframe; When the descending control information format that obtains when blind check is descending control information format 2C (DCI Format 2C); Execution in step 204; When the descending control information format that obtains when blind check is descending control information format 1A, execution in step 205;
Step 204, receiver side adopt demodulation pilot frequency DMRS to carry out channel estimating and demodulation separating timing, and are that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to PRG.
Step 205, receiver side judge that to the subframe type of carrying out the Physical Downlink Control Channel blind check if conventional (Normal) subframe, then execution in step 206; If Multicast Broadcast Single Frequency Network (MBSFN) subframe, then execution in step 207;
Step 206, receiver side are being separated timing employing public guide frequency CRS and need be not that unit carries out channel estimating and demodulation according to PRG;
Step 207, receiver side are being separated timing employing demodulation pilot frequency DMRS and need be not that unit carries out channel estimating and demodulation according to PRG.
Embodiment one:
Network side is transmission mode 9 through RRC signaling configuration network side to the transmission mode that receiver side sends The data; And the feedback model of configuration receiver side is when needing feedback PMI/CQI; When network side during, utilize descending control information format 2C to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating will to carry out the combined channel estimation and the demodulation of a plurality of Physical Resource Block according to PRG for unit separating timing with demodulation and indication receiver side at descending sub frame scheduling receiver side.
Receiver side is through receiving the RRC signaling that network side sends; The transmission mode that obtains network side transmission data is a transmission mode 9; And when receiving RRC signaling that network side sends and obtain network side configuration and need feed back PMI/CQI; When subframe is carried out the Physical Downlink Control Channel blind check; If blind check obtains that Downlink Control Information adopts when being DCI Format 2C, adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to PRG.
Among this embodiment, under the Normal pattern, according to different descending control information formats, the adjustment channel estimating mode of dynamic flexible, thus make full use of the channel estimation gains that PRB binds, improved the reliability and the average throughput of system.
Embodiment two:
Network side sends The data transmission mode 9 through RRC signaling configuration network side to receiver side; And dispose receiver side through high-level signaling and need feed back PMI/CQI; When network side is dispatched receiver side in the Normal descending sub frame; Utilize descending control information format 1A to come recessive indication receiver side to adopt public guide frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to PRG.
Receiver side is through receiving the RRC signaling that network side sends; The transmission mode that obtains network side transmission data is a transmission mode 9; And when receiving RRC signaling that network side sends and obtain network side configuration and need feed back PMI/CQI; When the Normal subframe is carried out the blind check of Physical Downlink Control Channel; If blind check obtains that Downlink Control Information adopts when being DCI Format 1A, adopt public guide frequency to carry out channel estimating with demodulation and need be not combined channel estimation and the demodulation that unit carries out a plurality of Physical Resource Block separating timing according to PRG.
Among this embodiment, under the Fallback pattern, according to different descending control information formats, the adjustment channel estimating mode of dynamic flexible, thus make full use of the frequency diversity gain that No-PRB binds, improved the reliability and the average throughput of system.
Embodiment three:
Network side sends The data transmission mode 9 through RRC signaling configuration network side to receiver side; And dispose receiver side through high-level signaling and need feed back PMI/CQI; When network side is dispatched receiver side in the MBSFN descending sub frame, utilize descending control information format 1A to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating need not carry out the combined channel estimation and the demodulation of a plurality of Physical Resource Block for unit separating timing according to PRG with demodulation and indication receiver side.
Receiver side is through receiving the RRC signaling that network side sends; The transmission mode that obtains network side transmission data is a transmission mode 9; And when receiving RRC signaling that network side sends and obtain network side configuration and need feed back PMI/CQI; When the MBSFN subframe is carried out the blind check of Physical Downlink Control Channel; If blind check obtains that Downlink Control Information adopts when being DCI Format 1A, separating that timing adopts and demodulation pilot frequency carries out channel estimating with demodulation and need be not combined channel estimation and the demodulation that unit carries out a plurality of Physical Resource Block according to PRG.
This instance under the Fallback pattern, according to different descending control information formats, the adjustment channel estimating mode of dynamic flexible, thereby make full use of the frequency diversity gain that No-PRB binds, improved the reliability and the average throughput of system.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc.This paper adopts and Ei overlaps the configuration information notification scheme of pilot tone, all should be included within protection scope of the present invention.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the method for a demodulation pilot frequency Physical Resource Block binding demodulation is characterized in that,
Network side indicates receiver side whether to carry out combined channel estimation and demodulation according to precoding resource group PRG through configuration transmission mode, descending control information format and feedback model.
2. method according to claim 1 is characterized in that,
The transmission mode that network side configuration receiver side adopts is a transmission mode 9;
Said network side configuration receiver side need feed back pre-coding matrix index PMI/ channel quality information indication CQI when feedback;
The descending control information format that said network side utilization is disposed comes recessive indication receiver side whether to carry out combined channel estimation and demodulation according to precoding resource group PRG.
3. method according to claim 2 is characterized in that, whether said indication receiver side carries out according to precoding resource group PRG that combined channel is estimated and demodulation is specially:
The indication receiver side adopts demodulation pilot frequency or adopts public guide frequency to carry out channel estimating and demodulation, and the indication receiver side according to or be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation not according to precoding resource group PRG.
4. according to claim 2 or 3 described methods, it is characterized in that whether the next recessive indication receiver side of the descending control information format that said network side utilization is disposed carries out combined channel according to precoding resource group PRG is estimated that the reconciliation accord method is:
Said network side utilizes descending control information format 2C to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side will be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
5. according to claim 2 or 3 described methods, it is characterized in that whether the next recessive indication receiver side of the descending control information format that said network side utilization is disposed carries out combined channel according to precoding resource group PRG is estimated that the reconciliation accord method is:
When said network side is configured in conventional Normal subframe; Utilize descending control information format 1A to come recessive indication receiver side to adopt public guide frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
6. according to claim 2 or 3 described methods, it is characterized in that whether the next recessive indication receiver side of the descending control information format that said network side utilization is disposed carries out combined channel according to precoding resource group PRG is estimated that the reconciliation accord method is:
When said network side is configured in Multicast Broadcast Single Frequency Network MBSFN subframe; Utilize descending control information format 1A to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
7. the system of a demodulation pilot frequency Physical Resource Block binding demodulation comprises network side and receiver side, it is characterized in that:
Network side is used for indicating receiver side whether to carry out combined channel according to precoding resource group PRG through configuration transmission mode, descending control information format and feedback model and estimates and demodulation;
Receiver side is used to receive the configuration of network side, and determines whether that according to the configuration of network side carrying out combined channel according to precoding resource group PRG estimates and demodulation.
8. system according to claim 7 is characterized in that,
When said network side adopts transmission mode 9 and configuration receiver side to feed back PMI/CQI at the configuration receiver side; Utilize descending control information format 2C to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side to be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG;
The transmission mode that said receiver side obtains the network side configuration is a transmission mode 9; Feedback model is when needing feedback PMI/CQI; When the blind check of carrying out Physical Downlink Control Channel; If blind check obtains that Downlink Control Information adopts when being descending control information format 2C, adopt demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and be that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
9. system according to claim 7 is characterized in that,
Network side adopts transmission mode 9 at the configuration receiver side; The configuration receiver side need feed back PMI/CQI; And when being configured in the Normal subframe; Utilize descending control information format 1A to come recessive indication receiver side to adopt public guide frequency to carry out channel estimating and demodulation separating timing, and the indication receiver side need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG;
The transmission mode that said receiver side obtains the network side configuration is a transmission mode 9; Feedback model is for needing feedback PMI/CQI; And when the Normal subframe is carried out blind check to Physical Downlink Control Channel; If that blind check obtains that Downlink Control Information adopts is DCI Format 1A, then adopts public guide frequency to carry out channel estimating and demodulation separating timing, and need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
10. system according to claim 7 is characterized in that,
Said network side adopts transmission mode 9 at the configuration receiver side; The configuration receiver side need feed back PMI/CQI; And when being configured in the MBSFN subframe, utilize descending control information format 1A to come recessive indication receiver side to adopt demodulation pilot frequency to carry out channel estimating need not carry out the combined channel estimation and the demodulation of a plurality of Physical Resource Block for unit separating timing according to precoding resource group PRG with demodulation and indication receiver side;
The transmission mode that said receiver side obtains the network side configuration is a transmission mode 9; Feedback model is for needing feedback PMI/CQI; And when the MBSFN subframe is carried out blind check to Physical Downlink Control Channel; If that blind check obtains that Downlink Control Information adopts is DCI Format 1A, then adopts demodulation pilot frequency to carry out channel estimating and demodulation separating timing, and need be not that the combined channel that unit carries out a plurality of Physical Resource Block is estimated and demodulation according to precoding resource group PRG.
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| CN201110065556.5A CN102685038B (en) | 2011-03-17 | 2011-03-17 | A kind of method and system for demodulating the binding demodulation of pilot physical resource block |
| PCT/CN2012/072036 WO2012122912A1 (en) | 2011-03-17 | 2012-03-07 | Pilot and physical resource block bundling demodulation method and system |
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| CN103475606A (en) * | 2013-09-24 | 2013-12-25 | 重庆邮电大学 | Channel estimation method based on reference signal in LTE-A system in TM9 mode |
| CN103782560A (en) * | 2011-03-30 | 2014-05-07 | 华为技术有限公司 | Method and apparatus for open loop transmission in a multiple antenna wireless communication system |
| CN106714310A (en) * | 2015-11-16 | 2017-05-24 | 展讯通信（上海）有限公司 | Method and device for detecting bundling of physical resource blocks and user equipment |
| CN108667492A (en) * | 2017-03-31 | 2018-10-16 | 维沃移动通信有限公司 | A kind of determination method and apparatus of precoding granularity |
| CN109586882A (en) * | 2017-09-29 | 2019-04-05 | 三星电子株式会社 | Method and apparatus for emitting in a wireless communication system and receiving data information |
| WO2019095969A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | User equipment and access device |
| WO2019095973A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | User equipment and channel measurement method |
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| US8379583B2 (en) * | 2009-01-30 | 2013-02-19 | Qualcomm Incorporated | Method and apparatus for multiplexing legacy long term evolution user equipment with advanced long term evolution user equipment |
| CN101873647B (en) * | 2009-04-22 | 2012-07-18 | 中兴通讯股份有限公司 | Non-periodic channel quality information transmission method |
| CN101931896A (en) * | 2009-06-22 | 2010-12-29 | 大唐移动通信设备有限公司 | Method, system and equipment for sending data |
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| CN103782560B (en) * | 2011-03-30 | 2017-10-24 | 华为技术有限公司 | The method and apparatus of open-loop transmission in multi-aerial radio communication system |
| US9941947B2 (en) | 2011-03-30 | 2018-04-10 | Huawei Technologies Co., Ltd. | Method and apparatus for open loop transmission in a multiple antenna wireless communication system |
| CN103475606B (en) * | 2013-09-24 | 2016-08-17 | 重庆邮电大学 | Channel estimation methods based on reference signal under TM9 pattern in lte-a system |
| CN103475606A (en) * | 2013-09-24 | 2013-12-25 | 重庆邮电大学 | Channel estimation method based on reference signal in LTE-A system in TM9 mode |
| CN106714310B (en) * | 2015-11-16 | 2020-04-14 | 展讯通信（上海）有限公司 | Physical resource block binding detection method and device and user equipment |
| CN106714310A (en) * | 2015-11-16 | 2017-05-24 | 展讯通信（上海）有限公司 | Method and device for detecting bundling of physical resource blocks and user equipment |
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| CN109586882A (en) * | 2017-09-29 | 2019-04-05 | 三星电子株式会社 | Method and apparatus for emitting in a wireless communication system and receiving data information |
| CN109586882B (en) * | 2017-09-29 | 2021-09-07 | 三星电子株式会社 | Method and apparatus for transmitting and receiving data information in wireless communication system |
| CN109802902A (en) * | 2017-11-16 | 2019-05-24 | 维沃移动通信有限公司 | A kind of Physical Resource Block binding size determines method, terminal device and the network equipment |
| WO2019095969A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | User equipment and access device |
| WO2019095973A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | User equipment and channel measurement method |
| CN109802786A (en) * | 2017-11-17 | 2019-05-24 | 华为技术有限公司 | A kind of user equipment and channel measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012122912A1 (en) | 2012-09-20 |
| CN102685038B (en) | 2017-11-21 |
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