CN101877865A - Method and system for sending measurement reference signal, base station and relay station - Google Patents
Method and system for sending measurement reference signal, base station and relay station Download PDFInfo
- Publication number
- CN101877865A CN101877865A CN2009100832933A CN200910083293A CN101877865A CN 101877865 A CN101877865 A CN 101877865A CN 2009100832933 A CN2009100832933 A CN 2009100832933A CN 200910083293 A CN200910083293 A CN 200910083293A CN 101877865 A CN101877865 A CN 101877865A
- Authority
- CN
- China
- Prior art keywords
- relay station
- reference signals
- measuring reference
- sends
- configuration information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/38—Reselection control by fixed network equipment
- H04W36/385—Reselection control by fixed network equipment of the core network
Abstract
The invention provides a method and a system for sending a measurement reference signal. The invention adopts the technical scheme that the configuration information of a relay station for sending a measurement reference signal is set in a base station, and the relay station is used for generating the measurement reference signal and sending the generated measurement reference signal according to the received configuration information for sending the measurement reference signal, wherein the configuration information is used for the relay station for determining the sub-frame position information sent by the measurement reference signal, and the measurement reference signal of the relay station and the measurement reference signal of the base station are sent in a time division mode. Through the technical scheme, the scheme of issuing the configuration information by the base station and sending the measurement reference signal by the relay station is provided in an LTE-A (Long Term Evolution-Advanced) system of the relay station without an independent PCID (Physical Cell Identity), thereby realizing the measurement of channel conditions from the relay station to a UE (User Equipment) link of the UE. The invention also provides the base station and the relay station, which realize the method for sending the measurement reference signal.
Description
Technical field
(LTE-A, LTE-Advanced) systems technology refer to a kind of method, system and base station and relay station that sends measuring reference signals especially to the present invention relates to senior Long Term Evolution.
Background technology
The demand for development of mobile communication can support higher transmission rate, more perfect signal to cover and higher resource utilization.In order to reach high transmission rate, next generation mobile communication system will adopt higher frequency bandwidth transmission signals, and higher frequency bandwidth will be brought bigger path loss simultaneously, influence the network coverage.Relaying (Relay) technology can increase covering and balance, increase cell throughout, and relay station has less relatively deployment cost than the base station.Therefore, to be regarded as the evolution system of Long Term Evolution (LTE, Long Term Evolution) be a key technology in the LTE-A system to relaying technique.
Relaying strategy according to the relay station of describing among the present 3GPP technical report TR 36.814, relay station can be divided into two kinds: a kind of relay station has independently Physical Cell Identifier number (PCID, Physical CellIdentity), relay station is independently controlled one or several sub-districts; Another kind of relay station self does not have independently PCID, and relay station is the part of its main plot.
In the LTE system, the resource of up-downgoing is that unit divides with the frame on time orientation.Fig. 1 is the composition structural representation of radio frames in the LTE system, and as shown in Figure 1, the length of each radio frames is 10ms, the subframe that to comprise 10 length be 1ms, and subframe is numbered 0～9.As the evolution system of LTE, the LTE-A system adopts the wireless frame structure identical with the LTE system.
In the LTE system, the base station sends public reference signal (CRS, Cell-specificReference Signal claim public guide frequency again) in each subframe, subscriber equipment (UE, User Equipment) uses CRS to carry out the coherent demodulation of channel conditions measurement and data.Be mapped in for fear of the CRS of neighbor cell and cause the phase mutual interference on the same frequency resource, CRS is associated with the PCID of sub-district in the absolute position of frequency domain mapping.Because CRS is associated with the PCID of sub-district in the absolute position of frequency domain, when relay station self did not have independently PCID, relay station can only utilize the PCID of current area to determine the absolute position of the CRS of relay station at frequency domain.At this moment, if relay station sends CRS, the CRS of relay station will bump with the CRS of main plot, thereby makes UE can't utilize the CRS of relay station to carry out the measurement of channel conditions, the failure that causes channel conditions to measure.
Than the LTE system, the transmitting antenna number of base station will expand to maximum 8 ports from maximum 4 ports of LTE system in the LTE-A system.Therefore in the LTE-A system, introduced new channel measurement reference signal (CSI-RS, Channel State Information-Reference Signal), the base station sends CSI-RS with the pattern and the sequential of regulation, LTE-A UE measures the channel condition information (CSI, Channel State Information) of base station to the UE link based on the CSI-RS that receives.
At present, in the LTE-A system,, do not provide the scheme that base station and relay station send measuring reference signals, make UE can't finish the measurement of relay station to the channel conditions of UE link for the relay station that does not have independent PCID.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that sends measuring reference signals, do not have at relay station under the situation of PCID independently, and the scheme that provides relay station to send measuring reference signals, thus realize the measurement of UE to channel conditions.
Another object of the present invention is to provide a kind of system that sends measuring reference signals, do not have at relay station under the situation of PCID independently, the scheme that provides relay station to send measuring reference signals, thus realize the measurement of UE to channel conditions.
Another purpose of the present invention is to provide a kind of base station, does not have at relay station under the situation of PCID independently, configuration information that can reasonable disposition relay station transmitting channel measuring reference signals.
A further object of the present invention is to provide a kind of relay station, do not have at relay station under the situation of PCID independently, and the scheme that provides relay station to send measuring reference signals, thus realize the measurement of UE to channel conditions.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that sends measuring reference signals, this method comprises:
The base station is provided with relay station and sends the configuration information of measuring reference signals and be handed down to relay station; Relay station generates measuring reference signals, and sends the measuring reference signals that generates according to the configuration information of the transmission measuring reference signals that receives.
Described configuration information is used for the subframe position information that relay station determines that measuring reference signals sends, and the measuring reference signals of described relay station and the measuring reference signals of base station send in the mode of time-division; Described time division way is: relay station sends measuring reference signals respectively with the base station in different subframes.
When described relay station for two or more and when being arranged in same sub-district, different relay station measuring reference signals send in the mode of time-division; Described time division way is: different relay stations sends described measuring reference signals respectively in different subframes.
The method that described base station is provided with the configuration information of relay station transmission measuring reference signals is: described base station is based on the relay station number in the current area, the measurement demand of reality and transmission cycle and the subframe position of described base station self CSI-RS, and the configuration relay station sends the configuration information of measuring reference signals.
When described relay station periodically sent described measuring reference signals, described configuration information comprised that relay station sends initial subframe position, the transmission cycle of measuring reference signals; Perhaps, described configuration information is the concrete subframe numbers that relay station sends measuring reference signals;
When described relay station aperiodicity sent described measuring reference signals, described configuration information was the concrete subframe numbers that relay station sends measuring reference signals; Perhaps, described configuration information is the subframe position that sends measuring reference signals according to pre-conditioned acquisition, describedly pre-conditionedly is: relay station sends the preset number subframe position transmission measuring reference signals that postpones on the position of CSI-RS in the base station;
When the measuring reference signals of different relay stations in the same sub-district is arranged in same subframe and adopts the frequency division multiplexing mode to send, described configuration information further comprises the transmission band information of each relay station measuring reference signals or sends the indication information of band information, and described indication information is used for the band information that each relay station obtains to send measuring reference signals;
Perhaps, when the measuring reference signals of different relay stations in the same sub-district is arranged in same subframe and adopts the code division multiplexing mode to send, described configuration information further comprises the indication information of the sign indicating number information or the sign indicating number information of each relay station measuring reference signals use, and described indication information is used for each relay station and obtains the sign indicating number information that measuring reference signals is used.
Described configuration information is included in described base station in the control information that relay station sends.
The CSI-RS of base station has identical pattern and identical sequence in the measuring reference signals of described relay station and the same sub-district, its place; Perhaps, when the antenna port that is different from the CSI-RS correspondence of described base station at the antenna port number of described relay station was counted, the CSI-RS of base station had pattern inequality in the measuring reference signals of described relay station and the same sub-district;
When the antenna port that is different from the CSI-RS correspondence of described base station when the antenna port number of described relay station was counted, this method also comprises: described base station sent to subscriber equipment by downlink signaling and is used to indicate relay station to send the identifying information of the subframe position of measuring reference signals.
The method of described transmission measuring reference signals is:
When described configuration information comprise the initial subframe position that sends measuring reference signals, when sending the cycle, described relay station begins periodically to send described measuring reference signals from initial subframe position;
When described configuration information is the concrete subframe numbers that relay station sends measuring reference signals, the configuration information that perhaps sends measuring reference signals is for sending the subframe position of measuring reference signals according to pre-conditioned acquisition, described relay station sends described measuring reference signals on the subframe of appointment.
This method also comprises: when the CSI-RS of base station in the measuring reference signals of described relay station and the same sub-district, its place has identical pattern and identical sequence, and the transmission cycle of described base station measuring reference signals in user equipment (UE) indication current area.
The relay station of indicating in described configuration information sends the resource location place of measuring reference signals, and described base station does not send any information; At the resource location place of described relay station transmission measuring reference signals, other relay stations in the affiliated same sub-district do not send any information.
A kind of base station issues the method for configuration information, and this method comprises:
Based on the relay station number in the current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, the configuration relay station sends the configuration information of measuring reference signals;
The configuration information that the relay station that configures is sent measuring reference signals is carried in the control information and issues to relay station.
A kind of relay station sends the method for measuring reference signals, and this method comprises:
Generate measuring reference signals,, determine the subframe position that measuring reference signals sends according to the configuration information that sends measuring reference signals from the relay station of base station;
On the subframe position that the measuring reference signals of determining sends, send the measuring reference signals that generates.
A kind of system that sends measuring reference signals, described system comprises at least: base station and one or more relay stations;
Wherein, the base station is used to the configuration information that relay station sends measuring reference signals is set, and is handed down to relay station;
Relay station is used for sending measuring reference signals according to the configuration information of the transmission measuring reference signals that receives;
Described configuration information is used for the subframe position information that relay station determines that measuring reference signals sends, and the measuring reference signals of described relay station and the measuring reference signals of base station send in the mode of time-division; Described time division way is: relay station sends measuring reference signals respectively with the base station in different subframes.
Described base station comprises configuration information generation unit and configuration information transmitting element at least, wherein,
The configuration information generation unit is used for the relay station number based on current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, and the configuration relay station sends the configuration information of measuring reference signals;
The configuration information transmitting element, be used for will configure the relay station configuration information that sends measuring reference signals be carried at control information and issue to relay station.
Described relay station comprises reference signal generation unit and reference signal transmitting element at least, wherein,
The reference signal generation unit is used to generate measuring reference signals, according to the configuration information that sends measuring reference signals from the relay station of described configuration information transmitting element, determines the subframe position that measuring reference signals sends;
The reference signal transmitting element is used for sending the measuring reference signals that the reference signal generation unit generates on the subframe position that the measuring reference signals that the reference signal generation unit is determined sends.
A kind of base station comprises configuration information generation unit and configuration information transmitting element at least, wherein,
The configuration information generation unit is used for the relay station number based on current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, and the configuration relay station sends the configuration information of measuring reference signals;
The configuration information transmitting element, be used for will configure the relay station configuration information that sends measuring reference signals be carried at control information and issue to relay station.
A kind of relay station comprises reference signal generation unit and reference signal transmitting element at least, wherein,
The reference signal generation unit is used to generate measuring reference signals, according to the configuration information that sends measuring reference signals from the relay station of base station, determines the subframe position that measuring reference signals sends;
The reference signal transmitting element is used for sending the measuring reference signals that the reference signal generation unit generates on the subframe position that the measuring reference signals that the reference signal generation unit is determined sends.
The technical scheme that provides from the invention described above comprises, the base station is provided with the configuration information that relay station sends measuring reference signals, relay station generates measuring reference signals, and according to the configuration information of the transmission measuring reference signals that receives, and send the measuring reference signals of generation between the base station in the mode of time-division.By scheme provided by the invention, in comprising the LTE-A system of relay station with independent PCID, the scheme that provides the base station to issue configuration information and relay station transmission measuring reference signals, thus realized that UE is to the measurement of relay station to the UE link channel conditions.The measuring reference signals of the present invention by further guaranteeing relay station is transparent for UE's, has reduced and has introduced the influence of relay station for the UE design.
Description of drawings
Fig. 1 is the composition structural representation of radio frames in the LTE system;
Fig. 2 sends the flow chart of the method for measuring reference signals for the present invention;
Fig. 3 is the composition structural representation of the present invention system of sending measuring reference signals;
Fig. 4 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention one;
Fig. 5 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention two;
Fig. 6 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention three;
Fig. 7 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention four;
Fig. 8 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention five.
Embodiment
Fig. 2 sends the flow chart of the method for measuring reference signals for the present invention, and as shown in Figure 2, the inventive method may further comprise the steps:
Step 200: the base station is provided with the configuration information that relay station sends measuring reference signals, and is handed down to relay station.
In the LTE-A system, the CSI-RS of base station sends with the form of duty ratio, that is to say that the base station can all not send CSI-RS in each subframe.Described configuration information is used for the transmission subframe position that relay station is determined measuring reference signals, be specially that the mode with the time-division sends measuring reference signals between relay station and the base station, the described time-division is meant that the base station sends CSI-RS respectively with relay station in different subframes, has avoided like this producing between the CSI-RS of the CSI-RS of base station and relay station and has disturbed.
When relay station for two or more and when being arranged in same sub-district, the mode with the time-division between the different relay stations sends measuring reference signals; The described time-division is meant that different relay stations sends described measuring reference signals respectively in different subframes.
The configuration information that relay station sends CSI-RS comprises information such as transmission cycle (comprise and periodically sending or the aperiodicity transmission), subframe position.Concrete method to set up comprises:
The base station is based on the relay station number in the current area, actual measurement demand and transmission cycle and the subframe position of self CSI-RS, and the configuration relay station sends configuration informations such as the transmission cycle, subframe position of CSI-RS.The CSI-RS of relay station periodically sends, and also can be that aperiodicity sends.When adopting periodicity to send CSI-RS, described configuration information comprises initial subframe position, the transmission cycle that sends CSI-RS; Perhaps, described configuration information is the concrete subframe numbers that relay station sends CSI-RS.When adopting aperiodicity to send CSI-RS, described configuration information is the concrete subframe numbers that relay station sends CSI-RS; Perhaps, described configuration information is the subframe position that sends CSI-RS according to pre-conditioned acquisition, such as the preset number subframe position transmission CSI-RS of postponing on the pre-conditioned position that sends CSI-RS for relay station in the base station.
The method that the base station issues the configuration information of relay station transmission measuring reference signals can be: the base station issues the configuration information that relay station sends measuring reference signals by control information to relay station.
Step 201: relay station generates measuring reference signals, and sends the measuring reference signals that generates according to the configuration information of the transmission measuring reference signals that receives.
The method that generates measuring reference signals can be: generate with same sub-district, its place in the CSI-RS of base station CSI-RS with identical pattern and identical sequence; Perhaps, when the antenna port that is different from the CSI-RS correspondence of base station at the antenna port number of relay station is counted, generate with same sub-district, its place in the CSI-RS of base station have the CSI-RS of pattern inequality.
When the configuration information that sends measuring reference signals comprises the initial subframe position that sends CSI-RS, transmission during the cycle, relay station begins periodically to send described CSI-RS from initial subframe position;
When the configuration information that sends measuring reference signals is the concrete subframe numbers that relay station sends CSI-RS, the configuration information that perhaps sends measuring reference signals is that relay station sends described CSI-RS when sending the subframe position of CSI-RS according to pre-conditioned acquisition in the subframe of appointment.
Further, when the measuring reference signals of different relay stations in the same sub-district is arranged in same subframe and adopts the frequency division multiplexing mode to send, described configuration information further comprises the transmission band information of each relay station measuring reference signals or sends the indication information of band information, and described indication information is used for the band information that each relay station obtains to send measuring reference signals.Perhaps, when the measuring reference signals of different relay stations in the same sub-district is arranged in same subframe and adopts the code division multiplexing mode to send, described configuration information further comprises the indication information of the sign indicating number information or the sign indicating number information of each relay station measuring reference signals use, and described indication information is used for each relay station and obtains the sign indicating number information that measuring reference signals is used.
When sending CSI-RS, when the corresponding antenna port number of the antenna port number and the CSI-RS of base station of relay station was identical, the CSI-RS of relay station preferably adopted pattern and the sequence identical with the CSI-RS of base station;
When the number of transmit antennas of relay station was counted less than the antenna port of the CSI-RS correspondence of base station, the CSI-RS of relay station can adopt pattern identical with the CSI-RS of base station and sequence to send, and also can adopt the pattern different with the CSI-RS of base station to send.
By method provided by the invention, LTE-AUE is used to the CSI-RS from base station and each relay station, measure respectively between self and the base station, and the channel conditions between self and each relay station.
Corresponding the inventive method, a kind of system that sends measuring reference signals also is provided, Fig. 3 is the composition structural representation of the present invention system of sending measuring reference signals, as shown in Figure 3, do not have at relay station under the situation of Physical Cell Identifier PCID independently, this system comprises base station and one or more relay stations at least, wherein
The base station is used to the configuration information that relay station sends measuring reference signals is set, and is handed down to relay station.
Relay station is used for sending measuring reference signals according to the configuration information of the transmission measuring reference signals that receives.
As shown in Figure 3, the base station comprises configuration information generation unit and configuration information transmitting element at least, wherein, the configuration information generation unit, be used for the relay station number based on current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, the configuration relay station sends the configuration information of measuring reference signals; The configuration information transmitting element, the configuration information that the relay station that is used for configuring sends measuring reference signals issues to relay station by control information.
Relay station comprises reference signal generation unit and reference signal transmitting element at least, wherein,
The reference signal generation unit is used to generate measuring reference signals, according to the configuration information of the relay station transmission measuring reference signals that receives, determines the subframe position that measuring reference signals sends.
The reference signal transmitting element is used for sending the measuring reference signals that the reference signal generation unit generates on the subframe position that the measuring reference signals that the reference signal generation unit is determined sends.
Below in conjunction with five embodiment the inventive method is described in detail.
Suppose that in the LTE-A system comprise a base station and several relay stations in the sub-district, these relay stations do not have independently PCID.The base station sends CSI-RS with certain duty ratio, and the length of this duty ratio is configurable, such as can being 2ms, or 5ms, or 10ms, or 20ms etc., also be per 2 subframes in base station, perhaps 5 subframes, perhaps 10 subframes, perhaps 20 subframes send a CSI-RS etc.(relaying ID is different with PCID for ID, identity) information, and relaying ID is used for distinguishing the different relay stations of same sub-district to suppose each relay station in the current area to have the relaying sign.
Fig. 4 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention one.Among the embodiment one, suppose that there are 8 antenna ports the base station, also corresponding 8 ports of corresponding C SI-RS, the CSI-RS of each port be mutually orthogonal be that the CSI-RS of each port does not disturb mutually.In embodiment one, suppose to comprise in the current area 3 relay stations, each relay station all disposes 8 antenna ports.
The transmission cycle of supposing the CSI-RS of the current configuration in base station is 20ms, the 0 work song frame of base station in each transmission cycle sends CSI-RS, as shown in Figure 4, the subframe position of base station transmission CSI-RS is filled with left oblique line and is represented, an interior subframe of transmission cycle is numbered 0～19.The transmission of relay station CSI-RS is configured by the base station, is implemented as follows.
The base station to the measurement demand of the link of UE and the relay station quantity in the current area, determines that relay station sends the configuration information of CSI-RS and indicates to relay station according to transmission cycle of self CSI-RS and relay station.This configuration information can be carried at the base station and issue in the control information that relay station sends.
In embodiment one, it is that 20ms sends CSI-RS that relay station adopts the transmission cycle identical with the base station.Be specially, in Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplex) pattern, relay station and base station, and send CSI-RS with identical sub-frame interval between each relay station; In time division duplex (TDD, Time Division Duplexing) pattern, relay station sends the position reasonable disposition of the subframe position of CSI-RS according to descending sub frame.
Suppose that the base station sends CSI-RS in subframe 0, if current system is the FDD duplex mode, then the base station is configured in respectively in subframe 5,10 and 15 according to 3 its CSI-RS transmission positions of relay station ID number big young pathbreaker in the current area, as Fig. 4, fill with right oblique line filling, horizontal line filling and vertical line respectively and represent; If current system is the TDD mode, because no matter which kind of form is the subframe uplink-downlink configuration of present frame be, subframe 5,10 and 15 all is a descending sub frame, then the base station is configured in respectively in subframe 5,10 and 15 according to its CSI-RS transmission position of 3 relay station ID numbers big young pathbreakers in the current area, as Fig. 4, fill with right oblique line filling, horizontal line filling and vertical line respectively and represent.The good above-mentioned relay station of base station configuration sends after the configuration information of CSI-RS, is handed down to each relay station by Downlink Control Information.As shown in Figure 4, it all is 20ms that the base station in the current area and each relay station CSI-RS send the cycle, but to be equivalent to be the transmission cycle of 5ms to all these CSI-RS in the current area.
Further, the base station can be 5ms to the transmission cycle of LTE-A UE indication current C SI-RS, and CSI-RS is configured in the subframe 0 and 5 in each radio frames.Like this, the CSI-RS that has guaranteed relay station is transparent for LTE-A UE, that is to say, LTE-A UE is unaware of the CSI-RS that receives in the subframe 0 and 5 in the current configuration and comes from the base station, still come from relay station, avoided the identification of LTE-AUE, reduced and introduced the influence of relay station for the UE design for relay station.
Receive the configuration information that sends CSI-RS from the relay station of base station at relay station, each relay station in the current area sends CSI-RS respectively in subframe 5,10 and 15.In the present embodiment one, for transparent for LTE-A UE of the CSI-RS that guarantees relay station, the CSI-RS that relay station sends can adopt identical sequence and identical pattern with the CSI-RS of base station transmission.
Like this, LTE-A UE utilizes this pilot frequency information to carry out the measurement of channel condition information and feeds back (specific implementation belongs to those skilled in the art's conventional techniques means, and it doesn't matter with the present invention, repeats no more) here after receiving CSI-RS.In embodiment one, LTE-A UE can measure different relay stations in the current area to information such as CQI, the PMI of the link of UE and RI.
Further, the resource location place of the CSI-RS correspondence of relay station in subframe 5,10 and 15, the base station does not send any information; Send the resource location place of CSI-RS at a certain relay station, do not send any information with other relay stations in the same sub-district under this relay station, avoided between base station and the relay station, and the generation of the CSI-RS between each relay station interference, guaranteed the accuracy that UE carries out the measurement of channel condition information.
Fig. 5 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention two.Among the embodiment two, suppose that there are 8 antenna ports the base station, also corresponding 8 ports of corresponding C SI-RS, the CSI-RS of each port is mutually orthogonal.In embodiment two, suppose to comprise in the current area 4 relay stations, each relay station all disposes 4 antenna ports.
The transmission cycle of supposing the CSI-RS of current base station configuration is 10ms, the 0 work song frame of base station in each radio frames sends CSI-RS, as shown in Figure 5, the subframe position of base station transmission CSI-RS is filled with left oblique line and is represented, the interior subframe of radio frames is numbered 0～9.The transmission of relay station CSI-RS is configured by the base station, is implemented as follows.
The base station to the measurement demand of the link of UE and the relay station quantity in the current area, determines that relay station sends the configuration information of CSI-RS and indicates to relay station according to transmission cycle of self CSI-RS and relay station.This configuration information can be carried at the base station and issue in the control information that relay station sends.
In embodiment two, it is that 10ms sends CSI-RS that relay station adopts the transmission cycle identical with the base station.Be specially, in the FDD mode, relay station and base station, and send CSI-RS with identical sub-frame interval between each relay station; In the TDD mode, relay station sends the subframe position of CSI-RS according to descending sub frame position reasonable disposition.
Suppose that the base station sends CSI-RS in subframe 0, if current system is the FDD mode, then the base station is configured in respectively in subframe 2,4,6 and 8 according to its CSI-RS transmission position of 4 relay station ID numbers big young pathbreakers in the current area, as Fig. 5 (a), fill with right oblique line filling, horizontal line filling, vertical line filling and positive lattice respectively and represent.If current system is the TDD mode, and the subframe uplink-downlink configuration employing collocation form 2 with present frame in the present embodiment two is an example, then the base station sends position according to its CSI-RS of 4 relay station ID numbers big young pathbreakers in the current area and is configured in respectively in 4 descending sub frames outside the subframe 0, in descending sub frame 3,4,5 and 8, as Fig. 5 (b), fill with right oblique line filling, horizontal line filling, vertical line filling and positive lattice respectively and represent.The good above-mentioned relay station of base station configuration sends after the configuration information of CSI-RS, is handed down to each relay station by Downlink Control Information.As shown in Figure 5, the transmission cycle of CSI-RS is the equal of 2ms (a FDD mode) in the current area.
Further, the base station can be 2ms to the transmission cycle of LTE-A UE indication current C SI-RS, and promptly CSI-RS is arranged in 0,2,4,6 and 8 (the FDD modes) or 0,3,4,5 and 8 (the TDD modes) of descending sub frame.Like this, the CSI-RS that has guaranteed relay station is transparent for LTE-A UE, that is to say, LTE-A UE is unaware of the CSI-RS that receives in subframe 0,2,4,6 and 8 (FDD mode) or 0,3,4,5 and 8 (the TDD modes) and comes from the base station, still come from relay station, reduced and introduced the influence of relay station for the UE design.
Receive the configuration information that sends CSI-RS from the relay station of base station at relay station, the relay station in the current area sends CSI-RS respectively in subframe 2,4,6 and 8 (FDD mode) or 3,4,5 and 8 (TDD modes).
In present embodiment two, the antenna port number of relay station configuration is less than the antenna port number of base station CSI-RS correspondence.But in order to reuse base station CSI-RS guaranteeing relay station CSI-RS transparent for UE, the antenna port number that relay station can anolog base station sends CSI-RS.Bright for instance: suppose that antenna port corresponding in the CSI-RS pattern of base station is P0～P7, the antenna port of relay station is R0～R3.4 antenna ports of corresponding with P0～P3 in the CSI-RS the pattern respectively and relay station of 4 antenna ports of relay station also respectively with the CSI-RS pattern in P4～P7 corresponding, and send CSI-RS.Be equivalent to compare the CSI-RS of base station, the CSI-RS of each antenna port of relay station has increased by one times in the density that each sends in the subframe.In the present embodiment two, for transparent for LTE-A UE of the CSI-RS that guarantees relay station, relay station P0～P3 and P4～P7 corresponding port place adopts and the identical sequence of pilot frequency sequence of each corresponding port correspondence of base station CSI-RS in the pattern of CSI-RS.
Like this, LTE-A UE utilizes this pilot frequency information to carry out the measurement of channel condition information and feeds back (specific implementation belongs to those skilled in the art's conventional techniques means, and it doesn't matter with the present invention, repeats no more) here after receiving CSI-RS.In embodiment two, LTE-A UE can accurately measure different relay stations in the current area to the CQI information of UE link.
Further, in subframe 2,4,6 and 8 (FDD mode) or 3,4,5 and 8 (TDD modes), the resource location place of the CSI-RS correspondence of relay station, the base station does not send any information; Send the resource location place of CSI-RS at a certain relay station, do not send any information with other relay stations in the same sub-district under this relay station, avoided between base station and the relay station, and the generation of the CSI-RS between each relay station interference, guaranteed the accuracy that UE carries out the measurement of channel condition information.
Fig. 6 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention three.Among the embodiment three, suppose that there are 8 antenna ports the base station, the channel measurement of its middle port 0～3 uses CRS, the CSI-RS of port 4～7 corresponding 4 ports.The CSI-RS of each port is mutually orthogonal.In embodiment three, suppose to comprise in the current area 3 relay stations, each relay station all disposes 4 antenna ports.
The transmission cycle of supposing the CSI-RS of current base station configuration is 10ms, the 0 work song frame of base station in each radio frames sends CSI-RS, shown in Fig. 6 (a) and Fig. 6 (b), the base station sends the subframe position of CSI-RS and represents that with left oblique line filling the interior subframe of radio frames is numbered 0～9.
The base station to the measurement demand of the link of UE and the relay station quantity in the current area, determines that relay station sends the configuration information of CSI-RS and indicates to relay station according to transmission cycle of self CSI-RS and relay station.This configuration information can be carried at the base station and issue in the control information that relay station sends.
In embodiment three, it is that 10ms sends CSI-RS that relay station adopts the transmission cycle identical with the base station.The configuration information that the suppose relay station sends CSI-RS be relay station according to pre-conditioned, send several subframes that postpone on the subframe position of CSI-RS in the base station and send CSI-RS.
Suppose that the base station sends CSI-RS in subframe 0, and suppose pre-conditionedly for sending in the base station on the subframe position of CSI-RS that each relay station is according to self size of relay station ID number, the subframe that postpones successively sends CSI-RS.If current system is the FDD mode, then the base station is configured in respectively in subframe 1,2 and 3 according to its CSI-RS transmission position of 3 relay station ID numbers big young pathbreakers in the current area, shown in Fig. 6 (a), fills with right oblique line filling, horizontal line filling and vertical line respectively and represents.If current system is the TDD mode, and the subframe uplink-downlink configuration employing collocation form 2 with present frame in the present embodiment three is an example, then the base station is configured in respectively in subframe 3,4 and 5 according to its CSI-RS transmission position of 3 relay station ID numbers big young pathbreakers in the current area, shown in Fig. 6 (b), fill with right oblique line filling, horizontal line filling and vertical line respectively and represent.The good above-mentioned relay station of base station configuration sends after the configuration information of CSI-RS, is handed down to each relay station by Downlink Control Information.
Receive the configuration information that sends CSI-RS from the relay station of base station at relay station, the relay station in the current area sends CSI-RS respectively in subframe 1,2 and 3 (FDD mode) or 3,4 and 5 (TDD modes).
In embodiment three, the antenna port number that the antenna port number of relay station configuration and the CSI-RS of base station are corresponding is identical.In order to reuse base station CSI-RS as far as possible, the CSI-RS that relay station sends can adopt identical sequence and identical pattern with the CSI-RS that the base station sends.In present embodiment three, the CSI-RS corresponding port of base station is P4～P7, and the antenna port of relay station is R0～R3.4 antenna port R0 of relay station～R3 P4～P7 of the CSI-RS of respective base station respectively sends CSI-RS.
In present embodiment three, the CSI-RS that relay station sends can adopt identical sequence and identical pattern with the CSI-RS that the base station sends.But, when LTE-AUE arrives the channel conditions of UE in the measurement base station, need realize in conjunction with CRS and CSI-RS; And when measuring relay station, need utilize the CSI-RS of relay station to get final product to the channel conditions of UE.Therefore, for UE, the CSI-RS of relay station is different with the CSI-RS of base station, and in present embodiment three, relay station is opaque for LTE-A UE, that is to say that it is from relay station or from the base station that UE need identify CSI-RS.In this case, the base station needs the extra special identifying information that increases, and tells that the CSI-RS of which subframe of UE is a relay station.This identifying information can be handed down to UE by downlink signaling such as control information.Such as in the present embodiment, the channel measurement of relay station to the UE link need be carried out by Downlink Control Information to LTE-A UE indication in the base station in subframe in each radio frames 1,2 and 3 (FDD mode) or subframe 3,4 and 5 (TDD mode).
Like this, LTE-A UE utilizes this pilot frequency information to carry out the measurement of channel condition information and feeds back (specific implementation belongs to those skilled in the art's conventional techniques means, and it doesn't matter with the present invention, repeats no more) here after receiving CSI-RS.In embodiment three, LTE-A UE can accurately measure different relay stations in the current area to CQI, PMI, the RI information of UE link.
Further, in subframe 1,2 and 3 (FDD mode) or 3,4 and 5 (TDD modes), the resource location place of the CSI-RS correspondence of relay station, the base station does not send any information; At the resource location place of a certain relay station transmission CSI-RS, other relay stations do not send any information, have avoided the CSI-RS between base station and relay station and the relay station to produce interference, have guaranteed that UE carries out the accuracy that channel condition information is measured.
Fig. 7 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention four.Among the embodiment four, suppose that there are 8 antenna ports the base station, the CSI-RS of corresponding 8 ports, the CSI-RS of each port is mutually orthogonal.In embodiment four, suppose to comprise in the current area 3 relay stations, each relay station all disposes 8 antenna ports.
The transmission cycle of supposing the CSI-RS of current base station configuration is 10ms, base station No. 1 (FDD mode) or No. 3 (TDD modes in each radio frames, with the subframe uplink-downlink configuration is that collocation form 2 is an example) subframe transmission CSI-RS, shown in Fig. 7 (a) and Fig. 7 (b), subframe position is filled with left oblique line and is represented.The transmission of relay station CSI-RS is configured by the base station, is implemented as follows.
The base station to the measurement demand of the link of UE and the relay station quantity in the current area, determines that relay station sends the configuration information of CSI-RS and indicates to relay station according to transmission cycle of self CSI-RS and relay station.This configuration information can be carried at the base station and issue in the control information that relay station sends.
In embodiment four, it is that 10ms sends CSI-RS that the transmission cycle identical with the base station adopted at the suppose relay station, and the CSI-RS that relay station sends can adopt identical sequence and identical pattern with the CSI-RS that the base station sends.Be specially, the CSI-RS of different relay stations is arranged in same subframe, and adopts the mode of frequency division to dispose transmission, that is to say that the CSI-RS of different relay stations is arranged in the different frequency bands of same subframe.In the FDD mode, send CSI-RS with the sub-frame interval that equates between relay station and the base station; In the TDD mode, relay station sends the position reasonable disposition of the subframe position of CSI-RS according to descending sub frame.
In LTE, the CQI information of UE feedback is divided into broadband CQI and subband CQI.Broadband CQI is based on CQI value of reference signal (pilot tone) information calculations of the full bandwidth that receives, and subband CQI calculates a CQI value and feedback at the pilot signal in each subband that receives.Each subband comprises several continuous Resource Block (RB, Resource Block) in frequency domain, and the number of the RB that specifically comprises and system bandwidth and CQI feedback system have relation.Suppose that current system bandwidth is 100 RB, the size of each CQI feedback subband is 8 RB under the current feedback system, and is so always total
Individual subband is divided into 3 groups with these 13 subbands, and each relay station sends CSI-RS respectively in one group of subband.
If current system is the FDD mode, suppose that the base station sends CSI-RS in subframe 1, the base station sends position configuration in subframe 6 according to its CSI-RS of 3 relay station ID numbers big young pathbreakers in the current area, shown in Fig. 7 (a), represents with right oblique line filling.If current system is the TDD mode, and the subframe uplink-downlink configuration employing collocation form 2 with present frame is an example, suppose that the base station sends CSI-RS in subframe 3, the base station sends the position according to 3 its CSI-RS of relay station ID number big young pathbreaker in the current area and is configured in respectively in the subframe 8, shown in Fig. 7 (b), represent with right oblique line filling.Shown in Fig. 7 (a) and Fig. 7 (b), the transmission cycle of CSI-RS is 5ms in the current area.
The concrete configuration method of the CSI-RS of different relay stations is, in subframe 6 (FDD mode) or 8 (TDD modes), relay station 1 sends CSI-RS in subband 1,2,3,4, relay station 2 sends CSI-RS in subband 5,6,7,8, relay station 3 sends CSI-RS in subband 9,10,11,12,13, in Fig. 7 (c), vertical line is filled respectively, positive lattice is filled and oblique lattice is filled expression.
Further, the base station can be 5ms to the transmission cycle of the current CSI-RS of LTE-A UE indication, and CSI-RS is arranged in the subframe 1 and 6 (FDD mode) or 3 and 8 (the TDD modes) of each radio frames.Like this, guaranteed that the CSI-RS of relay station is transparent for LTE-A UE, that is to say that LTE-A UE is unaware of received CSI-RS and comes from the base station, still comes from relay station, reduced and introduced the influence of relay station for the UE design.
Receive the configuration information that sends CSI-RS from the relay station of base station at relay station, the relay station in the current area sends CSI-RS in separately the transmission subband respectively in subframe 6 (FDD mode) or 8 (TDD modes).
Preferably, the CSI-RS that relay station sends can adopt identical sequence and identical pattern with the CSI-RS of base station transmission, and the CSI-RS that has guaranteed relay station is transparent for LTE-A UE's.
Like this, LTE-A UE utilizes this pilot frequency information to carry out the measurement of channel condition information and feeds back after receiving CSI-RS.In present embodiment four, LTE-A UE can accurately measure the CQI information to the UE link on some subband of different relay stations in the current area.Need to prove that because UE receives in subframe 6 (FDD mode) or 8 (TDD modes) CSI-RS information is from a plurality of via nodes, so the broadband CQI of UE calculating is without any meaning, the base station can be to its utilization.
Preferably, in subframe 6 (FDD mode) or 8 (TDD modes), the resource location place of the CSI-RS correspondence of relay station, the base station does not send any information; At the resource location place of a certain relay station transmission CSI-RS, other relay stations do not send any information, have avoided the CSI-RS between relay station to produce interference, have guaranteed that UE carries out the accuracy that channel condition information is measured.
Fig. 8 is the sub-frame configuration schematic diagram of CSI-RS in the embodiment of the invention five.Among the embodiment five, there are 8 antenna ports the base station, the CSI-RS of corresponding 4 ports, and the CSI-RS of each port is mutually orthogonal.The CSI of all the other 4 ports of base station measures by CRS.In embodiment five, suppose to comprise in the current area 6 relay stations, each relay station all disposes 4 antenna ports.
The transmission cycle of supposing the CSI-RS of current base station configuration is 5ms, 1 and No. 6 (the FDD mode) of base station in each radio frames, perhaps 3 and No. 8 (TDD modes, with the subframe uplink-downlink configuration is that collocation form 2 is an example) send CSI-RS in the subframe, shown in Fig. 8 (a) and Fig. 8 (b), subframe position is filled with left oblique line and is represented.
The base station to the measurement demand of the link of UE and the relay station quantity in the current area, determines that relay station sends the configuration information of CSI-RS and indicates to relay station according to transmission cycle of self CSI-RS and relay station.This configuration information can be carried at the base station and issue in the control information that relay station sends.
In present embodiment five, it is that 5ms sends CSI-RS that the transmission cycle identical with the base station adopted at the suppose relay station.The CSI-RS of different relay stations is arranged in same subframe and takies identical running time-frequency resource, and the CSI-RS of different relay stations adopts the mode quadrature of code division multiplexing.Suppose that in the current wireless frame under the FDD mode, the base station sends CSI-RS in subframe 1 and 6, perhaps under the TDD mode, the base station sends CSI-RS in subframe 3 and 8.Suppose that simultaneously the base station sends position configuration in subframe 2 and 7 (FDD mode) with the CSI-RS of 6 relay stations in the current area, perhaps in the subframe 4 and 9 (TDD mode), shown in Fig. 8 (a) and Fig. 8 (b), represent with right oblique line filling, wherein Fig. 8 (a) represents fdd mode, and chart 8 (b) shows tdd mode.Concrete collocation method is:
Be each antenna port assigned code resource of each relay station, wherein, the sign indicating number of the same antenna port of different relay stations is mutually orthogonal.Such as, the sign indicating number that the antenna port 0 of each relay station in the same sub-district (port numbering of supposing corresponding 4 antenna ports is 0-3) is corresponding is mutually orthogonal.Adopt mutually orthogonal sign indicating number between the different relay stations, guaranteed that receiving terminal can pass through relevant matches, remove the reference signal-to-interference between the different relay stations, obtain each relay station and estimate to the channel condition information of UE link.
The base station to the measurement demand of the link of UE and the relay station quantity in the current area, determines that relay station sends the configuration information of CSI-RS and indicates to relay station according to transmission cycle of self CSI-RS and relay station.This configuration information can be carried at the base station and issue in the control information that relay station sends.
The operable sign indicating number of each relay station measuring reference signals resource can limit good mode in advance by base station and relay station and obtain, and also can allocation result be carried in the configuration information of relay station transmission CSI-RS by the base station to each relay station dynamic assignment.
Receive the configuration information that sends CSI-RS from the relay station of base station at relay station, the relay station in the current area uses sign indicating number resource separately to send CSI-RS respectively in subframe 2 and 7 (FDD mode) or 4 and 9 (TDD modes).
In the present embodiment, the base station needs the extra special identifying information that increases, and the CSI-RS that tells which subframe of UE is that relay station sends.This identifying information can be handed down to UE by control information.Such as in the present embodiment, the channel measurement of relay station to the UE link need be carried out by Downlink Control Information to LTE-A UE indication in the base station in subframe in each radio frames 2 and 7 (FDD mode) or 4 and 9 (TDD modes).
In present embodiment five, the CSI-RS that relay station sends can adopt identical pattern with the CSI-RS that the base station sends, also can be different.Corresponding 4 ports of the pattern of the CSI-RS of relay station, it is mutually orthogonal in conjunction with time-multiplexed mode that the CSI-RS of same relay station different antennae port passes through frequency division multiplexing or time division multiplexing or frequency division multiplexing; The CSI-RS of different relay stations is mutually orthogonal by the mode of code division multiplexing.
Preferably, in subframe 2 and 7 (FDD mode), perhaps in the subframe 4 and 9 (TDD mode), the resource location place of the CSI-RS correspondence of relay station, the base station does not send any information, avoids the interference to the CSI-RS of relay station, has guaranteed the accuracy of UE channel measurement.
By scheme provided by the invention, in comprise the LTE-A system of relay station with independent PCID, the scheme that provides relay station to send measuring reference signals, thus realized that UE is to the measurement to the UE link channel conditions of the relay station that do not have independent PCID.The measuring reference signals of the present invention by further guaranteeing relay station is transparent for UE's, has reduced and has introduced the influence of relay station for the UE design.From the various embodiments described above as can be seen, in comprising the LTE-A system of relay station with independent PCID, adopt the solution of the present invention, avoid not having in base station and the same sub-district collision problem of measuring reference signals between the relay station of independent PCID, realized not having the measurement of channel condition information between the relay station of independent PCID and the UE.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. a method that sends measuring reference signals is characterized in that, this method comprises:
The base station is provided with relay station and sends the configuration information of measuring reference signals and be handed down to relay station; Relay station generates measuring reference signals, and sends the measuring reference signals that generates according to the configuration information of the transmission measuring reference signals that receives.
2. method according to claim 1 is characterized in that, described configuration information is used for the subframe position information that relay station determines that measuring reference signals sends, and the measuring reference signals of described relay station and the measuring reference signals of base station send in the mode of time-division; Described time division way is: relay station sends measuring reference signals respectively with the base station in different subframes.
3. method according to claim 2 is characterized in that, when described relay station for two or more and when being arranged in same sub-district, different relay station measuring reference signals send in the mode of time-division; Described time division way is: different relay stations sends described measuring reference signals respectively in different subframes.
4. method according to claim 2, it is characterized in that, the method that described base station is provided with the configuration information of relay station transmission measuring reference signals is: described base station is based on the relay station number in the current area, the measurement demand of reality and transmission cycle and the subframe position of described base station self CSI-RS, and the configuration relay station sends the configuration information of measuring reference signals.
5. method according to claim 2 is characterized in that, when described relay station periodically sent described measuring reference signals, described configuration information comprised that relay station sends initial subframe position, the transmission cycle of measuring reference signals; Perhaps, described configuration information is the concrete subframe numbers that relay station sends measuring reference signals;
When described relay station aperiodicity sent described measuring reference signals, described configuration information was the concrete subframe numbers that relay station sends measuring reference signals; Perhaps, described configuration information is the subframe position that sends measuring reference signals according to pre-conditioned acquisition, describedly pre-conditionedly is: relay station sends the preset number subframe position transmission measuring reference signals that postpones on the position of CSI-RS in the base station;
6. method according to claim 5 is characterized in that,
When the measuring reference signals of different relay stations in the same sub-district is arranged in same subframe and adopts the frequency division multiplexing mode to send, described configuration information further comprises the transmission band information of each relay station measuring reference signals or sends the indication information of band information, and described indication information is used for the band information that each relay station obtains to send measuring reference signals;
Perhaps, when the measuring reference signals of different relay stations in the same sub-district is arranged in same subframe and adopts the code division multiplexing mode to send, described configuration information further comprises the indication information of the sign indicating number information or the sign indicating number information of each relay station measuring reference signals use, and described indication information is used for each relay station and obtains the sign indicating number information that measuring reference signals is used.
7. according to claim 2 or 5 or 6 described methods, it is characterized in that described configuration information is included in described base station in the control information that relay station sends.
8. according to claim 2 or 3 described methods, it is characterized in that the CSI-RS of base station has identical pattern and identical sequence in the measuring reference signals of described relay station and the same sub-district, its place; Perhaps, when the antenna port that is different from the CSI-RS correspondence of described base station at the antenna port number of described relay station was counted, the CSI-RS of base station had pattern inequality in the measuring reference signals of described relay station and the same sub-district;
When the antenna port that is different from the CSI-RS correspondence of described base station when the antenna port number of described relay station was counted, this method also comprises: described base station sent to subscriber equipment by downlink signaling and is used to indicate relay station to send the identifying information of the subframe position of measuring reference signals.
9. method according to claim 5 is characterized in that, the method for described transmission measuring reference signals is:
When described configuration information comprise the initial subframe position that sends measuring reference signals, when sending the cycle, described relay station begins periodically to send described measuring reference signals from initial subframe position;
When described configuration information is the concrete subframe numbers that relay station sends measuring reference signals, the configuration information that perhaps sends measuring reference signals is for sending the subframe position of measuring reference signals according to pre-conditioned acquisition, described relay station sends described measuring reference signals on the subframe of appointment.
10. method according to claim 2, it is characterized in that, this method also comprises: when the CSI-RS of base station in the measuring reference signals of described relay station and the same sub-district, its place has identical pattern and identical sequence, and the transmission cycle of described base station measuring reference signals in user equipment (UE) indication current area.
11., it is characterized in that the relay station of indicating in described configuration information sends the resource location place of measuring reference signals according to claim 2 or 3 described methods, described base station does not send any information; At the resource location place of described relay station transmission measuring reference signals, other relay stations in the affiliated same sub-district do not send any information.
12. a base station issues the method for configuration information, it is characterized in that, this method comprises:
Based on the relay station number in the current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, the configuration relay station sends the configuration information of measuring reference signals;
The configuration information that the relay station that configures is sent measuring reference signals is carried in the control information and issues to relay station.
13. a relay station sends the method for measuring reference signals, it is characterized in that this method comprises:
Generate measuring reference signals,, determine the subframe position that measuring reference signals sends according to the configuration information that sends measuring reference signals from the relay station of base station;
On the subframe position that the measuring reference signals of determining sends, send the measuring reference signals that generates.
14. a system that sends measuring reference signals is characterized in that, described system comprises at least: base station and one or more relay stations;
Wherein, the base station is used to the configuration information that relay station sends measuring reference signals is set, and is handed down to relay station;
Relay station is used for sending measuring reference signals according to the configuration information of the transmission measuring reference signals that receives;
Described configuration information is used for the subframe position information that relay station determines that measuring reference signals sends, and the measuring reference signals of described relay station and the measuring reference signals of base station send in the mode of time-division; Described time division way is: relay station sends measuring reference signals respectively with the base station in different subframes.
15. system according to claim 14 is characterized in that, described base station comprises configuration information generation unit and configuration information transmitting element at least, wherein,
The configuration information generation unit is used for the relay station number based on current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, and the configuration relay station sends the configuration information of measuring reference signals;
The configuration information transmitting element, be used for will configure the relay station configuration information that sends measuring reference signals be carried at control information and issue to relay station.
16. system according to claim 14 is characterized in that, described relay station comprises reference signal generation unit and reference signal transmitting element at least, wherein,
The reference signal generation unit is used to generate measuring reference signals, according to the configuration information that sends measuring reference signals from the relay station of described configuration information transmitting element, determines the subframe position that measuring reference signals sends;
The reference signal transmitting element is used for sending the measuring reference signals that the reference signal generation unit generates on the subframe position that the measuring reference signals that the reference signal generation unit is determined sends.
17. a base station is characterized in that, comprises configuration information generation unit and configuration information transmitting element at least, wherein,
The configuration information generation unit is used for the relay station number based on current area, the measurement demand of reality and transmission cycle and the subframe position of self CSI-RS, and the configuration relay station sends the configuration information of measuring reference signals;
The configuration information transmitting element, be used for will configure the relay station configuration information that sends measuring reference signals be carried at control information and issue to relay station.
18. a relay station is characterized in that, comprises reference signal generation unit and reference signal transmitting element at least, wherein,
The reference signal generation unit is used to generate measuring reference signals, according to the configuration information that sends measuring reference signals from the relay station of base station, determines the subframe position that measuring reference signals sends;
The reference signal transmitting element is used for sending the measuring reference signals that the reference signal generation unit generates on the subframe position that the measuring reference signals that the reference signal generation unit is determined sends.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910083293.3A CN101877865B (en) | 2009-04-30 | 2009-04-30 | Method and system for sending measurement reference signal, base station and relay station |
| PCT/CN2010/071317 WO2010124544A1 (en) | 2009-04-30 | 2010-03-25 | Method, syestem, base station and relay station for transmitting a measurement reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910083293.3A CN101877865B (en) | 2009-04-30 | 2009-04-30 | Method and system for sending measurement reference signal, base station and relay station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101877865A true CN101877865A (en) | 2010-11-03 |
| CN101877865B CN101877865B (en) | 2014-06-11 |
Family
ID=43020306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910083293.3A Active CN101877865B (en) | 2009-04-30 | 2009-04-30 | Method and system for sending measurement reference signal, base station and relay station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101877865B (en) |
| WO (1) | WO2010124544A1 (en) |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573061A (en) * | 2012-03-07 | 2012-07-11 | 华为技术有限公司 | Positioning method and device under cooperative multi-point transmission scene as well as base station |
| WO2012095694A2 (en) * | 2011-01-12 | 2012-07-19 | Alcatel Lucent | Method of configuring an aperiodic sounding reference signal |
| CN102792747A (en) * | 2010-11-11 | 2012-11-21 | 联发科技股份有限公司 | Methods for configuring channel state information measurement in a communications system and communications apparatuses utilizing the same |
| CN102883341A (en) * | 2011-07-11 | 2013-01-16 | 华为技术有限公司 | Measuring method of channel information and relevant device |
| CN102938688A (en) * | 2011-08-15 | 2013-02-20 | 上海贝尔股份有限公司 | Method and device for channel measurement and feedback of multi-dimensional antenna array |
| CN102960019A (en) * | 2010-12-20 | 2013-03-06 | 日电（中国）有限公司 | Method and apparatus for scheduling downlink transmission |
| CN103238285A (en) * | 2010-12-03 | 2013-08-07 | 三星电子株式会社 | Method and apparatus for reference signaling allocation and channel estimation in distributed antenna systems |
| WO2014032606A1 (en) * | 2012-08-30 | 2014-03-06 | 电信科学技术研究院 | Method, device, and system for transmitting reference signal |
| CN103684534A (en) * | 2012-09-18 | 2014-03-26 | 联想(北京)有限公司 | Terminal-to-terminal communication method, terminal equipment, communication method and communication device |
| CN103840868A (en) * | 2012-11-20 | 2014-06-04 | 电信科学技术研究院 | Methods for indicating and feeding back channel quality information, devices and system |
| CN103959692A (en) * | 2011-09-28 | 2014-07-30 | Lg电子株式会社 | Method and apparatus for setting plurality of reference signal configurations in wireless communication system |
| WO2014113992A1 (en) * | 2013-01-28 | 2014-07-31 | 富士通株式会社 | Feedback method for channel state information, transmission method for channel state information reference signal, user equipment and base station |
| US20140219113A1 (en) * | 2012-11-26 | 2014-08-07 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and Radio Network Nodes For Measuring Interference |
| CN104170411A (en) * | 2012-03-16 | 2014-11-26 | 华为技术有限公司 | Systems and Methods for Reference Signals and CSI Feedback |
| WO2015010510A1 (en) * | 2013-07-26 | 2015-01-29 | 中兴通讯股份有限公司 | Method for measuring discovery signal, base station, and terminal |
| CN105247801A (en) * | 2013-05-16 | 2016-01-13 | Lg电子株式会社 | Method for transmitting signal for improving coverage and apparatus for same |
| CN105322995A (en) * | 2014-07-30 | 2016-02-10 | 电信科学技术研究院 | Pilot frequency sending method, channel measurement method and channel measurement device in MIMO system |
| CN105406951A (en) * | 2014-09-09 | 2016-03-16 | 上海贝尔股份有限公司 | Reference signal configuration method |
| CN105763304A (en) * | 2014-12-16 | 2016-07-13 | 北京信威通信技术股份有限公司 | Expansion method for maximum antenna port number supported by CSI-RS |
| WO2017012346A1 (en) * | 2015-07-23 | 2017-01-26 | 中兴通讯股份有限公司 | Channel state information measurement and feedback method, base station, terminal, and computer storage medium |
| WO2017024597A1 (en) * | 2015-08-10 | 2017-02-16 | 华为技术有限公司 | Data transmission method, device and system |
| CN106464351A (en) * | 2014-06-23 | 2017-02-22 | 英特尔Ip公司 | LTE-U communication devices and methods for aperiodic beacon and reference signal transmission |
| CN106685611A (en) * | 2015-11-06 | 2017-05-17 | 上海贝尔股份有限公司 | Method and device for configuring initial subframe of DL burst data transmission |
| CN107135055A (en) * | 2012-01-18 | 2017-09-05 | 华为技术有限公司 | Measuring method, CSI RS resource share methods and device |
| WO2018000341A1 (en) * | 2016-06-30 | 2018-01-04 | Nec Corporation | Method and apparatus for signal configuration in a wireless communication system |
| WO2018028619A1 (en) * | 2016-08-11 | 2018-02-15 | 华为技术有限公司 | Resource configuration method and apparatus |
| WO2018082457A1 (en) * | 2016-11-03 | 2018-05-11 | 华为技术有限公司 | Method and apparatus for configuring reference signal |
| CN109327884A (en) * | 2017-07-31 | 2019-02-12 | 华为技术有限公司 | Communication means, the network equipment and trunking |
| CN110149187A (en) * | 2018-02-13 | 2019-08-20 | 展讯通信（上海）有限公司 | A method of obtaining non-periodic channel detection reference signal |
| WO2019157737A1 (en) * | 2018-02-14 | 2019-08-22 | 华为技术有限公司 | Method and device for transmitting reference signal |
| CN110401516A (en) * | 2018-04-24 | 2019-11-01 | 上海朗帛通信技术有限公司 | A kind of first node that be used to wirelessly communicate, the method and apparatus in base station |
| US10554275B2 (en) | 2014-10-24 | 2020-02-04 | China Academy Of Telecommunications Technology | Channel state information feedback method, channel state information acquisition method, channel state information feedback device and channel state information acquisition device |
| WO2023024875A1 (en) * | 2021-08-27 | 2023-03-02 | 华为技术有限公司 | Method for measuring channel information, and network device, relay device and terminal |
| WO2023092495A1 (en) * | 2021-11-26 | 2023-06-01 | 北京小米移动软件有限公司 | Reference signal configuration method and apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391517B (en) | 2011-07-28 | 2018-05-04 | 华为技术有限公司 | The reception of control channel and sending method and device |
| ES2690361T3 (en) * | 2012-11-12 | 2018-11-20 | Huawei Technologies Co., Ltd. | Procedure for the notification of status information of the channel, user equipment and base station thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006088105A1 (en) * | 2005-02-18 | 2006-08-24 | Matsushita Electric Industrial Co., Ltd. | Wireless communication method, relay station apparatus, and wireless transmitting apparatus |
| CN101174873B (en) * | 2006-10-30 | 2011-08-10 | 华为技术有限公司 | Relay station equipment and communication forwarding method |
| KR100961745B1 (en) * | 2006-11-27 | 2010-06-07 | 삼성전자주식회사 | Apparatus and method for communicating channel information in relay wireless communication system |
-
2009
- 2009-04-30 CN CN200910083293.3A patent/CN101877865B/en active Active
-
2010
- 2010-03-25 WO PCT/CN2010/071317 patent/WO2010124544A1/en active Application Filing
Cited By (78)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102792747B (en) * | 2010-11-11 | 2017-07-07 | 联发科技股份有限公司 | For the method and communicator of the configurating channel status information measurement in communication system |
| CN102792747A (en) * | 2010-11-11 | 2012-11-21 | 联发科技股份有限公司 | Methods for configuring channel state information measurement in a communications system and communications apparatuses utilizing the same |
| CN103238285B (en) * | 2010-12-03 | 2017-06-09 | 三星电子株式会社 | For the reference signaling distribution in distributing antenna system and the method and apparatus of channel estimation |
| US9780901B2 (en) | 2010-12-03 | 2017-10-03 | Samsung Electronics Co., Ltd | Method and apparatus for reference signaling allocation and channel estimation in distributed antenna systems |
| CN103238285A (en) * | 2010-12-03 | 2013-08-07 | 三星电子株式会社 | Method and apparatus for reference signaling allocation and channel estimation in distributed antenna systems |
| CN102960019A (en) * | 2010-12-20 | 2013-03-06 | 日电（中国）有限公司 | Method and apparatus for scheduling downlink transmission |
| CN102960019B (en) * | 2010-12-20 | 2016-01-20 | 日电（中国）有限公司 | For the method and apparatus of schedule downlink transmissions |
| RU2537701C1 (en) * | 2011-01-12 | 2015-01-10 | Алькатель Люсент | Method of configuring aperiodic probing reference signal |
| US9369250B2 (en) | 2011-01-12 | 2016-06-14 | Alcatel Lucent | Method of configuring an aperiodic sounding reference signal |
| WO2012095694A3 (en) * | 2011-01-12 | 2012-10-18 | Alcatel Lucent | Method of configuring an aperiodic sounding reference signal |
| KR101488234B1 (en) | 2011-01-12 | 2015-01-30 | 알까뗄 루슨트 | Method of configuring an aperiodic sounding reference signal |
| WO2012095694A2 (en) * | 2011-01-12 | 2012-07-19 | Alcatel Lucent | Method of configuring an aperiodic sounding reference signal |
| CN102883341A (en) * | 2011-07-11 | 2013-01-16 | 华为技术有限公司 | Measuring method of channel information and relevant device |
| CN102883341B (en) * | 2011-07-11 | 2015-05-27 | 华为技术有限公司 | Measuring method of channel information and relevant device |
| CN102938688B (en) * | 2011-08-15 | 2015-05-27 | 上海贝尔股份有限公司 | Method and device for channel measurement and feedback of multi-dimensional antenna array |
| CN102938688A (en) * | 2011-08-15 | 2013-02-20 | 上海贝尔股份有限公司 | Method and device for channel measurement and feedback of multi-dimensional antenna array |
| US20140192762A1 (en) * | 2011-08-15 | 2014-07-10 | Alcatel Lucent | Methods and apparatuses for channel measurement and feedback of multi-dimensional antenna array |
| WO2013024350A3 (en) * | 2011-08-15 | 2013-05-02 | Alcatel Lucent | Methods and apparatuses for channel measurement and feedback of multi-dimensional antenna array |
| CN103959692B (en) * | 2011-09-28 | 2017-06-06 | Lg电子株式会社 | The method and apparatus for setting various reference signal configurations in a wireless communication system |
| CN103959692A (en) * | 2011-09-28 | 2014-07-30 | Lg电子株式会社 | Method and apparatus for setting plurality of reference signal configurations in wireless communication system |
| CN107135055A (en) * | 2012-01-18 | 2017-09-05 | 华为技术有限公司 | Measuring method, CSI RS resource share methods and device |
| CN107135055B (en) * | 2012-01-18 | 2020-06-02 | 华为技术有限公司 | Measuring method, CSI-RS resource sharing method and device |
| CN102573061A (en) * | 2012-03-07 | 2012-07-11 | 华为技术有限公司 | Positioning method and device under cooperative multi-point transmission scene as well as base station |
| CN102573061B (en) * | 2012-03-07 | 2015-09-30 | 华为技术有限公司 | Assist the localization method under multicast communication scene, device and base station |
| US10750396B2 (en) | 2012-03-16 | 2020-08-18 | Futurewei Technologies, Inc. | Systems and methods for reference signals and CSI feedback |
| US11805434B2 (en) | 2012-03-16 | 2023-10-31 | Futurewei Technologies, Inc. | Systems and methods for reference signals and CSI feedback |
| US9973955B2 (en) | 2012-03-16 | 2018-05-15 | Futurewei Technologies, Inc. | Systems and methods for reference signals and CSI feedback |
| CN104170411B (en) * | 2012-03-16 | 2019-10-22 | 华为技术有限公司 | System and method for reference signal and CSI feedback |
| CN104170411A (en) * | 2012-03-16 | 2014-11-26 | 华为技术有限公司 | Systems and Methods for Reference Signals and CSI Feedback |
| US9660779B2 (en) | 2012-08-30 | 2017-05-23 | China Academy Of Telecommunications Technology | Method, device, and system for transmitting reference signal |
| WO2014032606A1 (en) * | 2012-08-30 | 2014-03-06 | 电信科学技术研究院 | Method, device, and system for transmitting reference signal |
| CN103684534B (en) * | 2012-09-18 | 2016-12-21 | 联想(北京)有限公司 | Communication means, terminal unit and communicator end to end |
| CN103684534A (en) * | 2012-09-18 | 2014-03-26 | 联想(北京)有限公司 | Terminal-to-terminal communication method, terminal equipment, communication method and communication device |
| CN103840868A (en) * | 2012-11-20 | 2014-06-04 | 电信科学技术研究院 | Methods for indicating and feeding back channel quality information, devices and system |
| US9584272B2 (en) * | 2012-11-26 | 2017-02-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and radio network nodes for measuring interference |
| US20140219113A1 (en) * | 2012-11-26 | 2014-08-07 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and Radio Network Nodes For Measuring Interference |
| US9379792B2 (en) | 2013-01-28 | 2016-06-28 | Fujitsu Limited | Method for feeding back channel state information, method for transmitting channel state information reference signal, UE and base station |
| CN104919717A (en) * | 2013-01-28 | 2015-09-16 | 富士通株式会社 | Feedback method for channel state information, transmission method for channel state information reference signal, user equipment and base station |
| WO2014113992A1 (en) * | 2013-01-28 | 2014-07-31 | 富士通株式会社 | Feedback method for channel state information, transmission method for channel state information reference signal, user equipment and base station |
| US10477535B2 (en) | 2013-05-16 | 2019-11-12 | Lg Electronics Inc. | Method for transmitting signal for improving coverage and apparatus for same |
| US9913268B2 (en) | 2013-05-16 | 2018-03-06 | Lg Electronics Inc. | Signal transmission method for coverage improvement and apparatus for same |
| CN105247801A (en) * | 2013-05-16 | 2016-01-13 | Lg电子株式会社 | Method for transmitting signal for improving coverage and apparatus for same |
| CN105247801B (en) * | 2013-05-16 | 2019-03-29 | Lg电子株式会社 | Send the method and its equipment for improving the signal of coverage area |
| US9974068B2 (en) | 2013-05-16 | 2018-05-15 | Lg Electronics Inc. | Method for transmitting signal for improving coverage and apparatus for same |
| US9769690B2 (en) | 2013-07-26 | 2017-09-19 | Zte Corporation | Method for measuring discovery signal, base station, and terminal |
| WO2015010510A1 (en) * | 2013-07-26 | 2015-01-29 | 中兴通讯股份有限公司 | Method for measuring discovery signal, base station, and terminal |
| EP3016464A4 (en) * | 2013-07-26 | 2016-06-15 | Zte Corp | Method for measuring discovery signal, base station, and terminal |
| CN106464351A (en) * | 2014-06-23 | 2017-02-22 | 英特尔Ip公司 | LTE-U communication devices and methods for aperiodic beacon and reference signal transmission |
| US10064064B2 (en) | 2014-06-23 | 2018-08-28 | Intel IP Corporation | LTE-U communication devices and methods for aperiodic beacon and reference signal transmission |
| CN105322995A (en) * | 2014-07-30 | 2016-02-10 | 电信科学技术研究院 | Pilot frequency sending method, channel measurement method and channel measurement device in MIMO system |
| CN105406951A (en) * | 2014-09-09 | 2016-03-16 | 上海贝尔股份有限公司 | Reference signal configuration method |
| CN105406951B (en) * | 2014-09-09 | 2019-05-10 | 上海诺基亚贝尔股份有限公司 | A kind of reference signal configuration method |
| US10554275B2 (en) | 2014-10-24 | 2020-02-04 | China Academy Of Telecommunications Technology | Channel state information feedback method, channel state information acquisition method, channel state information feedback device and channel state information acquisition device |
| CN105763304A (en) * | 2014-12-16 | 2016-07-13 | 北京信威通信技术股份有限公司 | Expansion method for maximum antenna port number supported by CSI-RS |
| CN105763304B (en) * | 2014-12-16 | 2019-06-21 | 北京信威通信技术股份有限公司 | A kind of extended method of the supported maximum antenna port number of CSI-RS |
| WO2017012346A1 (en) * | 2015-07-23 | 2017-01-26 | 中兴通讯股份有限公司 | Channel state information measurement and feedback method, base station, terminal, and computer storage medium |
| CN107113780A (en) * | 2015-08-10 | 2017-08-29 | 华为技术有限公司 | A kind of data transmission method, device and system |
| WO2017024597A1 (en) * | 2015-08-10 | 2017-02-16 | 华为技术有限公司 | Data transmission method, device and system |
| CN106685611B (en) * | 2015-11-06 | 2019-08-23 | 上海诺基亚贝尔股份有限公司 | The method and apparatus for configuring the initial subframe of DL burst transfers of data |
| CN106685611A (en) * | 2015-11-06 | 2017-05-17 | 上海贝尔股份有限公司 | Method and device for configuring initial subframe of DL burst data transmission |
| WO2018000341A1 (en) * | 2016-06-30 | 2018-01-04 | Nec Corporation | Method and apparatus for signal configuration in a wireless communication system |
| US11895671B2 (en) | 2016-06-30 | 2024-02-06 | Nec Corporation | Method and apparatus for signal configuration in a wireless communication system |
| US11483811B2 (en) | 2016-06-30 | 2022-10-25 | Nec Corporation | Method and apparatus for signal configuration in a wireless communication system |
| US10855508B2 (en) | 2016-08-11 | 2020-12-01 | Huawei Technologies Co., Ltd. | Resource configuration method and apparatus |
| WO2018028619A1 (en) * | 2016-08-11 | 2018-02-15 | 华为技术有限公司 | Resource configuration method and apparatus |
| WO2018082457A1 (en) * | 2016-11-03 | 2018-05-11 | 华为技术有限公司 | Method and apparatus for configuring reference signal |
| CN109327884A (en) * | 2017-07-31 | 2019-02-12 | 华为技术有限公司 | Communication means, the network equipment and trunking |
| US11109392B2 (en) | 2017-07-31 | 2021-08-31 | Huawei Technologies Co., Ltd. | Communication method, network device, and relay device |
| CN110149187A (en) * | 2018-02-13 | 2019-08-20 | 展讯通信（上海）有限公司 | A method of obtaining non-periodic channel detection reference signal |
| CN110149187B (en) * | 2018-02-13 | 2021-08-10 | 展讯通信（上海）有限公司 | Method for acquiring aperiodic channel sounding reference signal |
| US11539485B2 (en) | 2018-02-14 | 2022-12-27 | Huawei Technologies Co., Ltd. | Reference signal transmission method and device |
| CN111713045B (en) * | 2018-02-14 | 2022-02-25 | 华为技术有限公司 | Method and device for transmitting reference signal |
| CN111713045A (en) * | 2018-02-14 | 2020-09-25 | 华为技术有限公司 | Method and device for transmitting reference signal |
| WO2019157737A1 (en) * | 2018-02-14 | 2019-08-22 | 华为技术有限公司 | Method and device for transmitting reference signal |
| CN110401516A (en) * | 2018-04-24 | 2019-11-01 | 上海朗帛通信技术有限公司 | A kind of first node that be used to wirelessly communicate, the method and apparatus in base station |
| CN110401516B (en) * | 2018-04-24 | 2021-10-29 | 上海朗帛通信技术有限公司 | Method and device used in first node and base station for wireless communication |
| WO2023024875A1 (en) * | 2021-08-27 | 2023-03-02 | 华为技术有限公司 | Method for measuring channel information, and network device, relay device and terminal |
| WO2023092495A1 (en) * | 2021-11-26 | 2023-06-01 | 北京小米移动软件有限公司 | Reference signal configuration method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101877865B (en) | 2014-06-11 |
| WO2010124544A1 (en) | 2010-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101877865A (en) | Method and system for sending measurement reference signal, base station and relay station | |
| CN102404689B (en) | Receive and send the method and apparatus of CSI-RS configuration information | |
| CN103458420B (en) | A kind of wireless communications method, base station and subscriber equipment | |
| CN103037397B (en) | Interferometry indicating means and interference detecting method and relevant device and communication system | |
| CN102883341B (en) | Measuring method of channel information and relevant device | |
| CN102404055B (en) | Method, system and device for measuring interference | |
| CN101572896B (en) | Method and device for collocating uplink sounding reference signal | |
| CN101989871B (en) | Sending method, device and system of detection reference signal | |
| CN107925496A (en) | Receive or send in a wireless communication system the method and its equipment of the reference signal for location determination | |
| CN102158272B (en) | Method, device and system for calibrating radio-frequency channels | |
| CN103716827B (en) | The instruction of channel condition information reference resources and measuring method and equipment | |
| CN102685874A (en) | Method, system and device for calibrating deviation between multiple access points | |
| CN106559879A (en) | Information sends and determines, the method and device that relation determines | |
| CN103457690A (en) | Method, device and system for transmitting sounding reference signals and user equipment | |
| CN103313250A (en) | Cell configuration method, synchronization method, user equipment and base station | |
| CN103716116A (en) | Channel state information feedback signaling configuration method, base station and terminal | |
| CN103944668A (en) | Uplink and downlink transmission method for processing flexible subframe and device thereof | |
| CN103782535A (en) | Methods and apparatuses for handling reference signals in cellular network | |
| CN108353300A (en) | Method and apparatus for the configuration for measuring limitation | |
| CN105227272B (en) | A kind of large scale MIMO transmission method and device | |
| CN103873124A (en) | Mobile terminal and measuring method of CSI RS (channel state information reference signal) thereof | |
| CN104869649A (en) | Method for configuring coordinated multiple point transmission multi-cell measurement pilot frequencies in LTE (Long Term Evolution) system | |
| CN101827387A (en) | Channel quality reporting method and corresponding device | |
| CN105636105A (en) | Measurement pilot transmitting method, measurement pilot detecting method, measurement pilot transmitting device, measurement pilot detecting device, base station and terminal | |
| CN102571284B (en) | Channel measuring method for LTE (Long Term Evolution) system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201229 Address after: 224000 room 403-405, 4th floor, Yongning International Auto City, Yancheng City, Jiangsu Province (No.2, Kaichuang Road, New District, Yandu District, Yancheng City) (b) Patentee after: Yancheng Dongfang automobile Square Investment Development Co.,Ltd. Address before: 518057 Ministry of justice, Zhongxing building, South Science and technology road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: ZTE Corp. |