CN102468926A - Configuration method of downlink control information, network equipment and access node - Google Patents
Configuration method of downlink control information, network equipment and access node Download PDFInfo
- Publication number
- CN102468926A CN102468926A CN2010105384353A CN201010538435A CN102468926A CN 102468926 A CN102468926 A CN 102468926A CN 2010105384353 A CN2010105384353 A CN 2010105384353A CN 201010538435 A CN201010538435 A CN 201010538435A CN 102468926 A CN102468926 A CN 102468926A
- Authority
- CN
- China
- Prior art keywords
- control information
- information format
- descending control
- access node
- descending
- 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
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims description 17
- 230000011664 signaling Effects 0.000 abstract description 16
- 238000013507 mapping Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 239000012467 final product Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a configuration method of downlink control information, a method for detecting a downlink control channel, network equipment and an access node, wherein the configuration method comprises the following steps: the network side selects a downlink control information format set according to channel information reference signal (CSI-RS) antenna port configuration information and a transmission mode configured for the access node, and transmits downlink control information by using a downlink control information format in the selected downlink control information format set. The invention selects the DCI Format set according to different antenna configuration information, and can reduce the signaling overhead.
Description
Technical field
The present invention relates to Long Term Evolution AS (Long term evolution advanced system; Be called for short LTE-Advanced); Specifically, relate in the LTE-Advanced system with the collocation method of Downlink Control Information, method, the network equipment and the access node of detection down control channel.
Background technology
In LTE Release8/9 in order quality of channel to be measured and the data symbol that receives to be carried out demodulation designed CRS (Common Reference Signal; Public reference signal); UE (User Equipment; Subscriber equipment) can carry out the measurement of channel through CRS, thereby decision UE carries out district reselecting and switches to Target cell, and carry out the measurement of channel quality in the UE connection status; When disturbing rank higher, physical layer can be broken off through high-rise relevant Radio Link connection failure signaling and being connected.In LTE R10 in order further to improve the average availability of frequency spectrum in sub-district and the throughput of the cell edge availability of frequency spectrum and each UE; Two kinds have been defined respectively with reference to signal: CSI-RS (channel information reference signal) and DMRS (demodulated reference signal); Wherein, CSI-RS is used for the measurement of channel, and can calculate UE through the measurement to CSI-RS need be to PMI (the Precoding Matrix Indicator of eNB feedback; Pre-coding matrix index); CQI (Channel Quality Indicator, channel quality information indication) and RI (Rank Indicator, order indication).CSI-RS is sparse in the distribution of time domain and frequency domain; And to guarantee at a RB (Resource Block; Resource Block) pilot density that only comprises a CSI-RS of each antenna port of Serving cell in, and be used as cycle of CSI-RS with the multiple of 5ms in time domain.Sparse CSI-RS can support eNodeB 8 arrangement of antennas, and has advantageously supported to face the cell measurement configuration.For R8, UE can adopt any sending mode in the sending mode 1～7, and for R9, UE can adopt any sending mode of sending mode 1～8, and for sending mode 1～8, channel measurement is all accomplished through CRS.For R10, UE can adopt any sending mode of sending mode 1～9, and sending mode 9 with a difference of sending mode 1～8 is exactly: sending mode 9 will adopt CSI-RS to measure.And in R8 and R9 corresponding to all corresponding two kinds of DCI Format (the Downlink Control Information Format of each sending mode 1～8; Descending control information format); For each sending mode Fall back mode (fall-back mode) DCI Format1A is arranged all, this DCI Format design is a rollback problem of having considered every kind of sending mode.Because eNodeB disposes through the semi-static configuration of high-level signaling the sending mode of UE; When the speed at some subframe UE improves suddenly; The perhaps unexpected variation of channel quality perhaps receives under the situation such as certain high-level signaling, and eNodeB can adopt under the sending mode that has disposed and send a mode of dividing collection and come UE is sent data; Guaranteed that so to a certain extent the retransmission probability and the percent of call lost are as far as possible little, so all have transmission to divide the assurance of collection for every kind of sending mode.But in prior standard, do not stipulate sending mode 9 pairing DCI format set, do not unite the technology that decision DCIformat gathers yet about CSI-RS configuration information and pattern 9.
Summary of the invention
Technical problem to be solved by this invention provides a kind of collocation method of Downlink Control Information, method, the network equipment and the access node of detection down control channel; To select DCI Format set according to the different antennas configuration information, to reduce the expense of signaling.
In order to solve the problems of the technologies described above, the invention provides a kind of collocation method of Downlink Control Information, comprising:
Network side is selected the descending control information format set according to channel information reference signal (CSI-RS) antenna port configuration information with for the sending mode of access node configuration, utilizes the descending control information format in the selected descending control information format set to send Downlink Control Information.
Further, said method also has following characteristics: said CSI-RS antenna port configuration information is a CSI-RS antenna port number.
Further, said method also has following characteristics: the descending control information format that comprises two or more in the said descending control information format set.
Further, said method also has following characteristics:
Said descending control information format set comprises: descending control information format 1 and descending control information format 1A, perhaps
Said descending control information format set comprises: descending control information format 1A and descending control information format 2C.
Further; Said method also has following characteristics: said CSI-RS antenna port number is 1; Said sending mode is a sending mode 9; Said network side is selected the set of first descending control information format, and said first descending control information format set comprises: descending control information format 1 and descending control information format 1A, and said descending control information format 1 utilizes port 7 transmission business datums corresponding with network side; Said descending control information format 1A utilizes port 0 transmission business datum corresponding with network side, and the step that the descending control information format during the selected descending control information format of said network side utilization is gathered sends Downlink Control Information is specially:
Said network side utilizes descending control information format 1 that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then; Perhaps
Said network side utilizes descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then.
Further; Said method also has following characteristics: said CSI-RS antenna port number is greater than 1; Said sending mode is a sending mode 9; Said network side is selected the set of second descending control information format; Said second descending control information format set comprises: descending control information format 1A and descending control information format 2C; Said descending control information format 1A sends the branch collection with the network side utilization or port 0 transmission business datum is corresponding, and said descending control information format 2C utilizes the one or more ports transmission business datums among the port 7-14 corresponding with network side, and the step that the descending control information format during the selected descending control information format of said network side utilization is gathered sends Downlink Control Information is specially:
Said network side utilizes descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then; Perhaps
Said network side utilizes descending control information format 2C that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then.
In order to address the above problem; The present invention also provides a kind of method that detects down control channel; Comprise: receiving node is selected the descending control information format set according to the CSI-RS antenna port configuration information and the sending mode of network side configuration, carries out the down control channel blind check in selected descending control information format set corresponding search space then.
Further, said method also has following characteristics: said CSI-RS antenna port configuration information is a CSI-RS antenna port number, and said access node is selected also to comprise before the step of descending control information format set:
Obtain the CSI-RS antenna port information of number and the sending mode configuration information of network side configuration through system information block signal or Radio Resource control signal.
Further, said method also has following characteristics: the descending control information format that comprises two or more in the said descending control information format set.
Further, said method also has following characteristics:
Said descending control information format set comprises: descending control information format 1 and descending control information format 1A, perhaps
Said descending control information format set comprises: descending control information format 1A and descending control information format 2C.
Further; Said method also has following characteristics: said CSI-RS antenna port number is 1; Said sending mode is a sending mode 9; Said access node is selected the set of first descending control information format, and said first descending control information format set comprises: descending control information format 1 and descending control information format 1A, and the step that said access node carries out the down control channel blind check in selected descending control information format set corresponding search space is specially:
Said access node carries out the down control channel blind check in the dedicated search space of the said access node of descending control information format 1 correspondence, perhaps
Said access node carries out the down control channel blind check in the common search space of descending control information format 1A correspondence and the dedicated search space of said access node.
Further; Said method also has following characteristics: said CSI-RS antenna port number is greater than 1; Said sending mode is a sending mode 9; Said access node is selected the set of second descending control information format, and said second descending control information format set comprises: descending control information format 1A and descending control information format 2C, and the step that said access node carries out the down control channel blind check in selected descending control information format set corresponding search space is specially:
Said access node carries out the down control channel blind check in the common search space of descending control information format 1A correspondence or the dedicated search space of said access node, perhaps
Said access node carries out the down control channel blind check in the dedicated search space of the corresponding said access node of descending control information format 2C.
In order to address the above problem the present invention a kind of network equipment is provided also, has comprised:
Select module, be used for according to channel information reference signal (CSI-RS) antenna port configuration information and select descending control information format for the sending mode of access node configuration and gather;
Sending module is used for utilizing the descending control information format of the descending control information format set that said selection module selects to send Downlink Control Information.
Further, the above-mentioned network equipment also has following characteristics: said CSI-RS antenna port configuration information is a CSI-RS antenna port number.
Further, the above-mentioned network equipment also has following characteristics: said CSI-RS antenna port number is 1, and said sending mode is a sending mode 9,
Said selection module; Specifically be used to select the set of first descending control information format; Said first descending control information format set comprises: descending control information format 1 and descending control information format 1A; Said descending control information format 1 utilizes port 7 transmission business datums corresponding with network side, and said descending control information format 1A utilizes port 0 transmission business datum corresponding with network side;
Said sending module specifically is used to utilize descending control information format 1 that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then; Perhaps utilize descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, send Downlink Control Information then.
Further, the above-mentioned network equipment also has following characteristics: said CSI-RS antenna port number is greater than 1, and said sending mode is a sending mode 9,
Said selection module is selected the set of second descending control information format; Said second descending control information format set comprises: descending control information format 1A and descending control information format 2C; Said descending control information format 1A sends the branch collection with the network side utilization or port 0 transmission business datum is corresponding; Said descending control information format 2C utilizes the one or more ports transmission business datums among the port 7-14 corresponding with network side
Said sending module specifically is used to utilize descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then; Perhaps utilize descending control information format 2C that Downlink Control Information is put into the dedicated search space of said access node, send Downlink Control Information then.
Further, the above-mentioned network equipment also has following characteristics: comprise that also memory module is used to store more than one descending control information format set, each descending control information format set comprises more than one descending control information format.
Further, the above-mentioned network equipment also has following characteristics: the said network equipment comprises: base station, relay station, Microcell (PICO) and Home eNodeB.
In order to address the above problem, the present invention also provides a kind of access node, comprising:
Select module, be used for selecting the descending control information format set according to channel information reference signal (CSI-RS) antenna port configuration information and the sending mode of configuration;
Detection module, the down control channel blind check is carried out in the descending control information format set corresponding search space that is used for selecting in said selection module.
Further, above-mentioned access node also has following characteristics: said CSI-RS antenna port configuration information is a CSI-RS antenna port number, and said access node also comprises:
Acquisition module is used for obtaining CSI-RS antenna port information of number and the sending mode configuration information that network side disposes through system information block signal or Radio Resource control signal.
Further, above-mentioned access node also has following characteristics: said CSI-RS antenna port number is 1, and said sending mode is a sending mode 9,
Said selection module specifically is used to select the set of first descending control information format, and said first descending control information format set comprises: descending control information format 1 and descending control information format 1A;
Said detection module; Specifically be used for carrying out the down control channel blind check, perhaps carry out the down control channel blind check in the corresponding common search space of descending control information format 1A or the dedicated search space of said access node in the dedicated search space of the corresponding said access node of descending control information format 1.
Further, above-mentioned access node also has following characteristics: said CSI-RS antenna port number is 1, and said sending mode is a sending mode 9,
Said selection module specifically is used to select the set of second descending control information format, and said second descending control information format set comprises: descending control information format 1A and descending control information format 2C;
Said detection module; Specifically be used for carrying out the down control channel blind check, perhaps carry out the down control channel blind check in the dedicated search space of the corresponding said access node of descending control information format 2C in the common search space of descending control information format 1A correspondence or the dedicated search space of said access node.
Further, above-mentioned access node also has following characteristics: also comprise:
Memory module is used to store more than one descending control information format set, and each descending control information format set comprises more than one descending control information format.
Further, above-mentioned access node also has following characteristics: said access node comprises:
Portable terminal, user's handheld device, relay station, little base station (Pico) and Home eNodeB.
In sum; The present invention provides a kind of collocation method, the network equipment and access node of Downlink Control Information; Can select DCI Format set according to the different antennas configuration information,, promptly for example can dispose three kinds of DCI Format with respect to a kind of sending mode to reduce the expense of signaling; Less blind check complexity is arranged, and compatible mutually with the corresponding relation of traditional sending mode and DCI Format.After access node is confirmed DCI Format set, in selected set, carry out signaling consumption and receiving node that blind check can greatly reduce Downlink Control Information to the blind check complexity of Downlink Control Information, saved PDCCH detection time.
Description of drawings
Fig. 1 is the sketch map of the network equipment of the present invention;
Fig. 2 is the sketch map of access node of the present invention;
Fig. 3 is the flow chart of the collocation method of Downlink Control Information of the present invention;
Fig. 4 is the flow chart of the method for detection down control channel of the present invention.
Embodiment
In order to understand the present invention better, the present invention is done to describe further below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 is the sketch map of the network equipment of the present invention, and is as shown in Figure 1, and the network equipment of the present invention (being network side) mainly comprises: select module and sending module, wherein,
Select module, be used for selecting DCI Format set according to the CSI-RS antenna port configuration information with for the sending mode of said access node configuration;
Sending module is used for utilizing the DCIFormat of the DCI Format set that said selection module selects to send Downlink Control Information.
The network equipment of the present invention can comprise: base station (eNodeB), relay station (Relay), Microcell (PICO) and Home eNodeB (Home eNodeB) etc.
Wherein, said CSI-RS antenna port configuration information can be CSI-RS antenna port number, can also be the port location information of CSI-RS, the cycle of CSI-RS and sub-frame offset information or the like.
Also comprise memory module in the network equipment, be used to store more than one DCI Format set, comprise more than one DCI Format in each DCI Format set.
For example; Store two DCI Format set in the network equipment; DCI Format set 1 comprises with DCI Format set 2, DCI Format set 1: DCI Format 1 and DCI Format 1A, DCI Format set 2 comprises: DCI Format 1A and DCI Format 2C.
The correlation technique of the DCI Format 1 that the present invention relates to, DCI Format 1A and DCI Format 2C derives from the associated DC I format standard content in LTE Release9 36.213 7.1 joints.
When said sending mode was sending mode 9, DCI Format sets classification can be as shown in table 1, and wherein, said CSI-RS antenna port number is 1,
Said selection module; Specifically be used to select the set of first descending control information format; Said first descending control information format set comprises: descending control information format 1 and descending control information format 1A; Said descending control information format 1 utilizes port 7 transmission business datums corresponding with network side, and said descending control information format 1A utilizes port 0 transmission business datum corresponding with network side;
Said sending module specifically is used to utilize descending control information format 1 that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then; Perhaps utilize descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, send Downlink Control Information then.
Preferably, greater than 1, said sending mode is a sending mode 9 as if said CSI-RS antenna port number,
Said selection module is selected the set of second descending control information format; Said second descending control information format set comprises: descending control information format 1A and descending control information format 2C; Said descending control information format 1A sends the branch collection with the network side utilization or port 0 transmission business datum is corresponding; Said descending control information format 2C utilizes the one or more ports transmission business datums among the port 7-14 corresponding with network side
Said sending module specifically is used to utilize descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then; Perhaps utilize descending control information format 2C that Downlink Control Information is put into the dedicated search space of said access node, send Downlink Control Information then.
Table 1
Fig. 2 is the sketch map of access node of the present invention, and is as shown in Figure 2, and access node of the present invention comprises: select module and detection module, wherein,
Select module, be used for selecting DCI Format set according to the CSI-RS antenna port configuration information and the sending mode of configuration;
Detection module is used for DCI Format set the carrying out PDCCH blind check of selecting in said selection module.
The CSI-RS antenna port configuration information can be CSI-RS antenna port number, can also be the port location information of CSI-RS, the cycle of CSI-RS and sub-frame offset information or the like.
Wherein, said CSI-RS antenna port configuration information is a CSI-RS antenna port number, and further, said access node also comprises:
Acquisition module is used for obtaining the CSI-RS antenna port information of number and the sending mode configuration information of network side configuration through SIBx (system information block) signal or RRC (Radio Resource Control, Radio Resource control) signal.
Access node of the present invention can comprise: portable terminal, user's handheld device, relay station, little base station (Pico), Home eNodeB (Home eNodeB)) etc.
Access node also comprises memory module, is used to store more than one DCI Format set, comprises more than one DCI Format in each DCI Format set.
For example; Store two DCI Format set in the access node; DCI Format set 1 comprises with DCI Format set 2, DCI Format set 1: DCI Format 1 and DCI Format 1A, DCI Format set 2 comprises: DCI Format 1A and DCI Format 2C.
When said sending mode was sending mode 9, DCI Format sets classification can be as shown in table 1.
Preferably, when said CSI-RS antenna port number is 1, said sending mode is a sending mode 9,
Said selection module specifically is used to select the set of first descending control information format, and said first descending control information format set comprises: descending control information format 1 and descending control information format 1A;
Said detection module; Specifically be used for carrying out the down control channel blind check, perhaps carry out the down control channel blind check in the corresponding common search space of descending control information format 1A or the dedicated search space of said access node in the dedicated search space of the corresponding said access node of descending control information format 1.
Preferably, when said CSI-RS antenna port number is 1, said sending mode is a sending mode 9,
Said selection module specifically is used to select the set of second descending control information format, and said second descending control information format set comprises: descending control information format 1A and descending control information format 2C;
Said detection module; Specifically be used for carrying out the down control channel blind check, perhaps carry out the down control channel blind check in the dedicated search space of the corresponding said access node of descending control information format 2C in the common search space of descending control information format 1A correspondence or the dedicated search space of said access node.
Fig. 3 is the flow chart of the collocation method of Downlink Control Information of the present invention, and is as shown in Figure 3, and method of the present invention comprises following step:
S11, network side are according to the CSI-RS antenna port configuration information and be that the sending mode of said access node configuration is selected DCI Format set;
A kind of DCI format in the DCI format set that S12, network side utilization are selected sends Downlink Control Information.
Fig. 4 is the flow chart of the method for detection down control channel of the present invention, and is as shown in Figure 4, and method of the present invention comprises following step:
S21, access node are selected DCI Format set according to the CSI-RS antenna port configuration information and the sending mode of configuration;
S22, access node carry out the PDCCH blind check in selected DCI Format set corresponding search space.
Classify DCI Format set can reduce the expense of signaling according to the different antennas configuration information like this; Can dispose three kinds of DCI Format with respect to a kind of sending mode has less blind check complexity, and compatible mutually with the corresponding relation of traditional sending mode and DCI Format.After UE confirms DCI Format, in selected set, carry out blind check and can greatly reduce the blind check complexity, saved PDCCH detection time.
Below with several specific embodiments the present invention is carried out detailed explanation.
Embodiment one:
The control information of network side configurating downlink is specially in the present embodiment:
When a UE inserts an eNodeB; When the statistics of eNodeB through the certain hour section; The optimum sending mode of finding this UE is sending mode T (sending mode T can be any among the sending mode 1-9); At this moment eNodeB can the sending mode of configuration UE be T in high-level signaling, and on PDSCH, sends to UE through the RRC signaling;
UE can obtain the sending mode T of eNodeB configuration through the relevant PDSCH of demodulation RRC like this; When it knows that eNodeB is sending mode T to the sending mode of its configuration; This UE just can know afterwards in the PDCCH demodulation, only need in fixed range, carry out blind check in the DCI Format set and get final product.
ENodeB is according to the CSI-RS antenna port configuration information of configuration and be that the sending mode T of said access node configuration selects DCI Format set, and a kind of DCI format during network side is gathered according to the DCI format of different channel qualities and transmission information utilization selection then sends Downlink Control Information.
Access node detects down control channel and is specially in the present embodiment:
ENodeB mapping (enum) data and pilot tone are on the data message resource, and mapping control information and pilot tone send to object UE through radio frequency link then on the control information resource;
UE is behind the descending sub frame that receives the eNodeB transmission; The DCI Format that selectes blind check PDCCH according to the sending mode and the CSI-RS antenna port configuration information of configuration gathers; In selected set, carry out blind check then, come PDSCH (DSCH Downlink Shared Channel) is received and demodulation according to the blind check object information.
Embodiment two:
Present embodiment specifically adopts the CSI-RS antenna port number of CSI-RS antenna port configuration information to carry out the selection of DCI Format set.
The control information of network side configurating downlink is specially in the present embodiment:
When a UE inserts an eNodeB; When the statistics of eNodeB through the certain hour section; The optimum sending mode of finding this UE is sending mode T (sending mode T can be any among the sending mode 1-9); At this moment eNodeB can the sending mode of configuration UE be T in high-level signaling, and on PDSCH, sends to UE through the RRC signaling;
UE can obtain the sending mode T of eNodeB configuration through the relevant PDSCH of demodulation RRC like this; When it knows that eNodeB is sending mode T to the sending mode of its configuration; This UE just can know afterwards in the PDCCH demodulation, only need be in fixed range DCI Format carry out blind check and get final product.
ENodeB is according to the CSI-RS antenna port number of configuration and be that the sending mode T of said access node configuration selects DCI Format set, and a kind of DCI format during network side is gathered according to the DCI format of different channel qualities and transmission information utilization selection then sends Downlink Control Information.
Access node detects down control channel and is specially in the present embodiment:
ENodeB mapping (enum) data and pilot tone are to the RE of PDSCH, and mapping control information and pilot tone send to object UE through radio frequency link then to the RE of PDCCH;
UE is behind the descending sub frame that receives the eNodeB transmission; Select the DCI Format set of blind check PDCCH according to the port number configuration information of sending mode that disposes and CSI-RS; In selected set, carry out blind check then, come PDSCH (DSCH Downlink Shared Channel) is received and demodulation according to the blind check result.
Wherein, UE at first obtains the CSI-RS port number information and the sending mode configuration information of eNodeB configuration through SIBx signal or RRC signal before carrying out the PDCCH detection.
Embodiment three:
Present embodiment mainly is according to sending mode 9, and CSI-RS antenna port number equals 1, selects DCIFormat set 1.
The control information of network side configurating downlink is specially in the present embodiment:
When a UE inserts an eNodeB; When the statistics of eNodeB through the certain hour section; The optimum sending mode of finding this UE is a sending mode 9, and at this moment eNodeB can the sending mode of configuration UE be 9 in high-level signaling, and on PDSCH, sends to UE through the RRC signaling;
UE obtains the sending mode 9 of eNodeB configuration through the relevant PDSCH of demodulation RRC like this; When it knows that eNodeB is sending mode 9 to the sending mode of its configuration; This UE just can know afterwards in the PDCCH demodulation, only need be in fixed range DCI Format carry out blind check and get final product.
At this moment eNodeB selects DCI Format set 1 according to CSI-RS antenna port number (CSI-RS antenna port number equals 1) and sending mode 9, and eNodeB sends Downlink Control Information according to a kind of DCI format x (x=1 or 1A) in the DCI format set 1 of different channel qualities and transmission information utilization selection then.
Access node detects down control channel and is specially in the present embodiment:
ENodeB mapping (enum) data and pilot tone are to the RE of PDSCH, and mapping control information and pilot tone send to object UE through radio frequency link then to the RE of PDCCH;
UE is receiving the descending sub frame that eNodeB sends; At first pass through radio frequency processing; Equal at 1 o'clock according to the sending mode 9 of configuration and the port number of CSI-RS then, the DCIFormat set 1 of selected blind check PDCCH, wherein; DCI Format set 1 comprises: DCI Format1 and DCI Format1A, and as shown in table 1.In selected set (DCI Format set 1), carry out blind check then, come PDSCH (DSCH Downlink Shared Channel) is received and demodulation according to the blind check result.
Embodiment four:
Present embodiment mainly is according to sending mode 9, and CSI-RS antenna port number is selected DCIFormat set 2 greater than 1.
The control information of network side configurating downlink is specially in the present embodiment:
When a UE inserts an eNodeB; When the statistics of eNodeB through the certain hour section; The optimum sending mode of finding this UE is a sending mode 9, and at this moment eNodeB can the sending mode of configuration UE be 9 in high-level signaling, and on PDSCH, sends to UE through the RRC signaling;
UE obtains the sending mode 9 of eNodeB configuration through the relevant PDSCH of demodulation RRC like this; When it knows that eNodeB is sending mode T to the sending mode of its configuration; This UE just can know afterwards in the PDCCH demodulation, only need be in fixed range DCI Format carry out blind check and get final product.
At this moment eNodeB selects DCI Format set 2 according to CSI-RS antenna port number (CSI-RS antenna port number equals 1) and sending mode 9, and eNodeB sends Downlink Control Information according to a kind of DCI format x (x=1A or 2C) in the DCI format set 2 of different channel qualities and transmission information utilization selection then.
Access node detects down control channel and is specially in the present embodiment:
ENodeB mapping (enum) data and pilot tone are to the RE of PDSCH, and mapping control information and pilot tone send to object UE through radio frequency link then to the RE of PDCCH;
UE is receiving the descending sub frame that eNodeB sends; According to the port number of the sending mode 9 of configuration and CSI-RS greater than 1 o'clock, the DCI Format of selected blind check PDCCH set 2, wherein; DCIFormat set 2 comprises: DCI Format 1A and DCI Format 2C, and as shown in table 1.In selected set (DCI Format set 2), carry out blind check then, come PDSCH (DSCH Downlink Shared Channel) is received and demodulation according to the blind check result.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
More than be merely the preferred embodiments of the present invention; Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof, those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (24)
1. the collocation method of a Downlink Control Information comprises:
Network side is selected the descending control information format set according to channel information reference signal (CSI-RS) antenna port configuration information with for the sending mode of access node configuration, utilizes the descending control information format in the selected descending control information format set to send Downlink Control Information.
2. the method for claim 1 is characterized in that:
Said CSI-RS antenna port configuration information is a CSI-RS antenna port number.
3. the method for claim 1 is characterized in that: the descending control information format that comprises two or more in the said descending control information format set.
4. method as claimed in claim 3 is characterized in that:
Said descending control information format set comprises: descending control information format 1 and descending control information format 1A, perhaps
Said descending control information format set comprises: descending control information format 1A and descending control information format 2C.
5. method as claimed in claim 2; It is characterized in that: said CSI-RS antenna port number is 1; Said sending mode is a sending mode 9; Said network side is selected the set of first descending control information format; Said first descending control information format set comprises: descending control information format 1 and descending control information format 1A; Said descending control information format 1 utilizes port 7 transmission business datums corresponding with network side, and said descending control information format 1A utilizes port 0 transmission business datum corresponding with network side, and the step that the descending control information format during the selected descending control information format of said network side utilization is gathered sends Downlink Control Information is specially:
Said network side utilizes descending control information format 1 that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then; Perhaps
Said network side utilizes descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then.
6. method as claimed in claim 2; It is characterized in that: said CSI-RS antenna port number is greater than 1; Said sending mode is a sending mode 9; Said network side is selected the set of second descending control information format; Said second descending control information format set comprises: descending control information format 1A and descending control information format 2C; Said descending control information format 1A sends the branch collection with the network side utilization or port 0 transmission business datum is corresponding, and said descending control information format 2C utilizes the one or more ports transmission business datums among the port 7-14 corresponding with network side, and the step that the descending control information format during the selected descending control information format of said network side utilization is gathered sends Downlink Control Information is specially:
Said network side utilizes descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then; Perhaps
Said network side utilizes descending control information format 2C that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then.
7. method that detects down control channel comprises:
Receiving node is selected the descending control information format set according to the CSI-RS antenna port configuration information and the sending mode of network side configuration, carries out the down control channel blind check in selected descending control information format set corresponding search space then.
8. method as claimed in claim 7 is characterized in that: said CSI-RS antenna port configuration information is a CSI-RS antenna port number, and said access node is selected also to comprise before the step of descending control information format set:
Obtain the CSI-RS antenna port information of number and the sending mode configuration information of network side configuration through system information block signal or Radio Resource control signal.
9. method as claimed in claim 7 is characterized in that: the descending control information format that comprises two or more in the said descending control information format set.
10. method as claimed in claim 9 is characterized in that:
Said descending control information format set comprises: descending control information format 1 and descending control information format 1A, perhaps
Said descending control information format set comprises: descending control information format 1A and descending control information format 2C.
11. method as claimed in claim 8; It is characterized in that: said CSI-RS antenna port number is 1; Said sending mode is a sending mode 9; Said access node is selected the set of first descending control information format, and said first descending control information format set comprises: descending control information format 1 and descending control information format 1A, and the step that said access node carries out the down control channel blind check in selected descending control information format set corresponding search space is specially:
Said access node carries out the down control channel blind check in the dedicated search space of the said access node of descending control information format 1 correspondence, perhaps
Said access node carries out the down control channel blind check in the common search space of descending control information format 1A correspondence and the dedicated search space of said access node.
12. method as claimed in claim 8; It is characterized in that: said CSI-RS antenna port number is greater than 1; Said sending mode is a sending mode 9; Said access node is selected the set of second descending control information format, and said second descending control information format set comprises: descending control information format 1A and descending control information format 2C, and the step that said access node carries out the down control channel blind check in selected descending control information format set corresponding search space is specially:
Said access node carries out the down control channel blind check in the common search space of descending control information format 1A correspondence or the dedicated search space of said access node, perhaps
Said access node carries out the down control channel blind check in the dedicated search space of the corresponding said access node of descending control information format 2C.
13. a network equipment is characterized in that, comprising:
Select module, be used for according to channel information reference signal (CSI-RS) antenna port configuration information and select descending control information format for the sending mode of access node configuration and gather;
Sending module is used for utilizing the descending control information format of the descending control information format set that said selection module selects to send Downlink Control Information.
14. the network equipment as claimed in claim 13 is characterized in that: said CSI-RS antenna port configuration information is a CSI-RS antenna port number.
15. the network equipment as claimed in claim 14 is characterized in that: said CSI-RS antenna port number is 1, and said sending mode is a sending mode 9,
Said selection module; Specifically be used to select the set of first descending control information format; Said first descending control information format set comprises: descending control information format 1 and descending control information format 1A; Said descending control information format 1 utilizes port 7 transmission business datums corresponding with network side, and said descending control information format 1A utilizes port 0 transmission business datum corresponding with network side;
Said sending module specifically is used to utilize descending control information format 1 that Downlink Control Information is put into the dedicated search space of said access node, sends Downlink Control Information then; Perhaps utilize descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, send Downlink Control Information then.
16. the network equipment as claimed in claim 14 is characterized in that: said CSI-RS antenna port number is greater than 1, and said sending mode is a sending mode 9,
Said selection module is selected the set of second descending control information format; Said second descending control information format set comprises: descending control information format 1A and descending control information format 2C; Said descending control information format 1A sends the branch collection with the network side utilization or port 0 transmission business datum is corresponding; Said descending control information format 2C utilizes the one or more ports transmission business datums among the port 7-14 corresponding with network side
Said sending module specifically is used to utilize descending control information format 1A that Downlink Control Information is put into the dedicated search space of common search space or said access node, sends Downlink Control Information then; Perhaps utilize descending control information format 2C that Downlink Control Information is put into the dedicated search space of said access node, send Downlink Control Information then.
17. the network equipment as claimed in claim 13 is characterized in that: comprise that also memory module is used to store more than one descending control information format set, each descending control information format set comprises more than one descending control information format.
18. like each described network equipment of claim 13-17, it is characterized in that: the said network equipment comprises: base station, relay station, Microcell (PICO) and Home eNodeB.
19. an access node is characterized in that, comprising:
Select module, be used for selecting the descending control information format set according to channel information reference signal (CSI-RS) antenna port configuration information and the sending mode of configuration;
Detection module, the down control channel blind check is carried out in the descending control information format set corresponding search space that is used for selecting in said selection module.
20. access node as claimed in claim 19 is characterized in that: said CSI-RS antenna port configuration information is a CSI-RS antenna port number, and said access node also comprises:
Acquisition module is used for obtaining CSI-RS antenna port information of number and the sending mode configuration information that network side disposes through system information block signal or Radio Resource control signal.
21. access node as claimed in claim 20 is characterized in that: said CSI-RS antenna port number is 1, and said sending mode is a sending mode 9,
Said selection module specifically is used to select the set of first descending control information format, and said first descending control information format set comprises: descending control information format 1 and descending control information format 1A;
Said detection module; Specifically be used for carrying out the down control channel blind check, perhaps carry out the down control channel blind check in the corresponding common search space of descending control information format 1A or the dedicated search space of said access node in the dedicated search space of the corresponding said access node of descending control information format 1.
22. access node as claimed in claim 20 is characterized in that: said CSI-RS antenna port number is 1, and said sending mode is a sending mode 9,
Said selection module specifically is used to select the set of second descending control information format, and said second descending control information format set comprises: descending control information format 1A and descending control information format 2C;
Said detection module; Specifically be used for carrying out the down control channel blind check, perhaps carry out the down control channel blind check in the dedicated search space of the corresponding said access node of descending control information format 2C in the common search space of descending control information format 1A correspondence or the dedicated search space of said access node.
23. access node as claimed in claim 19 is characterized in that: also comprise:
Memory module is used to store more than one descending control information format set, and each descending control information format set comprises more than one descending control information format.
24. like each described access node of claim 19-23, it is characterized in that: said access node comprises:
Portable terminal, user's handheld device, relay station, little base station (Pico) and Home eNodeB.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010538435.3A CN102468926B (en) | 2010-11-09 | 2010-11-09 | Configuration method of downlink control information, network equipment and access node |
| PCT/CN2011/079966 WO2012062154A1 (en) | 2010-11-09 | 2011-09-21 | Method for configuring downlink control information, network device and access node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010538435.3A CN102468926B (en) | 2010-11-09 | 2010-11-09 | Configuration method of downlink control information, network equipment and access node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102468926A true CN102468926A (en) | 2012-05-23 |
| CN102468926B CN102468926B (en) | 2015-05-20 |
Family
ID=46050387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010538435.3A Active CN102468926B (en) | 2010-11-09 | 2010-11-09 | Configuration method of downlink control information, network equipment and access node |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102468926B (en) |
| WO (1) | WO2012062154A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013178088A1 (en) * | 2012-05-31 | 2013-12-05 | 中兴通讯股份有限公司 | Control channel transmitting, receiving method, base station and terminal |
| CN103581869A (en) * | 2012-08-03 | 2014-02-12 | 中兴通讯股份有限公司 | Method and device for processing control information |
| WO2014048189A1 (en) * | 2012-09-28 | 2014-04-03 | 中兴通讯股份有限公司 | Configuration method for channel state information feedback signal and base station and termination |
| CN104254132A (en) * | 2013-06-26 | 2014-12-31 | 上海朗帛通信技术有限公司 | Scheduling method and device in D2D system |
| WO2015062451A1 (en) * | 2013-11-01 | 2015-05-07 | 中兴通讯股份有限公司 | Discovery signal processing method, base station and computer storage medium |
| CN104969503A (en) * | 2013-01-17 | 2015-10-07 | 英特尔Ip公司 | Channel quality indication for fallback transmission mode over new carrier type |
| CN105471559A (en) * | 2014-09-05 | 2016-04-06 | 中兴通讯股份有限公司 | Method and device for allocating and determining quasi-co-location |
| CN105991222A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Configuration information notification method, acquisition method, device, base station and terminal |
| WO2017101651A1 (en) * | 2015-12-18 | 2017-06-22 | 中兴通讯股份有限公司 | Method and device for determining instance of channel state information reporting |
| WO2018028386A1 (en) * | 2016-08-11 | 2018-02-15 | 中兴通讯股份有限公司 | Channel sending method and apparatus for v2x communication |
| CN110034842A (en) * | 2018-01-12 | 2019-07-19 | 中国移动通信有限公司研究院 | A kind of method and device, equipment, storage medium for transmitting DCI |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6222534B2 (en) | 2013-07-29 | 2017-11-01 | サン パテント トラスト | Communication apparatus and communication method |
| WO2015035578A1 (en) * | 2013-09-11 | 2015-03-19 | 华为技术有限公司 | Method and base station for configuring channel status information reference signal |
| DK3598816T3 (en) * | 2017-03-17 | 2023-08-14 | Ntt Docomo Inc | USER TERMINAL AND RADIO COMMUNICATION METHOD |
| CN111586853A (en) * | 2019-02-15 | 2020-08-25 | 华为技术有限公司 | Wireless communication method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101541063A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Transmission method and device of downlink control signaling |
| CN101764642A (en) * | 2009-12-30 | 2010-06-30 | 中兴通讯股份有限公司 | Transmission method and transmission system of descending control information |
| CN101778449A (en) * | 2010-01-08 | 2010-07-14 | 中兴通讯股份有限公司 | Method for transmitting downlink control information and base station thereof |
| US20100272019A1 (en) * | 2009-04-24 | 2010-10-28 | Samsung Electronics Co., Ltd. | Multiplexing large payloads of control information from user equipments |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651995A (en) * | 2009-09-21 | 2010-02-17 | 中兴通讯股份有限公司 | Transmission method and system of downlink control information |
| CN101715211A (en) * | 2009-11-02 | 2010-05-26 | 中兴通讯股份有限公司 | Method and device for setting transmission mode |
-
2010
- 2010-11-09 CN CN201010538435.3A patent/CN102468926B/en active Active
-
2011
- 2011-09-21 WO PCT/CN2011/079966 patent/WO2012062154A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100272019A1 (en) * | 2009-04-24 | 2010-10-28 | Samsung Electronics Co., Ltd. | Multiplexing large payloads of control information from user equipments |
| CN101541063A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Transmission method and device of downlink control signaling |
| CN101764642A (en) * | 2009-12-30 | 2010-06-30 | 中兴通讯股份有限公司 | Transmission method and transmission system of descending control information |
| CN101778449A (en) * | 2010-01-08 | 2010-07-14 | 中兴通讯股份有限公司 | Method for transmitting downlink control information and base station thereof |
Non-Patent Citations (1)
| Title |
|---|
| NOKIA: "Remaining Details of Transmission Mode 9 and DCI 2C", 《3GPP TSG RAN WG1 MEETING #62BIS R1-105534》 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013178088A1 (en) * | 2012-05-31 | 2013-12-05 | 中兴通讯股份有限公司 | Control channel transmitting, receiving method, base station and terminal |
| US9236980B2 (en) | 2012-05-31 | 2016-01-12 | Zte Corporation | Control channel transmitting, receiving method, base station and terminal |
| CN103581869A (en) * | 2012-08-03 | 2014-02-12 | 中兴通讯股份有限公司 | Method and device for processing control information |
| WO2014048189A1 (en) * | 2012-09-28 | 2014-04-03 | 中兴通讯股份有限公司 | Configuration method for channel state information feedback signal and base station and termination |
| CN103716116A (en) * | 2012-09-28 | 2014-04-09 | 中兴通讯股份有限公司 | Channel state information feedback signaling configuration method, base station and terminal |
| CN103716116B (en) * | 2012-09-28 | 2019-04-16 | 中兴通讯股份有限公司 | Configuration method, base station and the terminal of information feedback signaling |
| US10231144B2 (en) | 2012-09-28 | 2019-03-12 | Xi'an Zhingxing New Software Co., Ltd. | Configuration method for channel state information feedback signal and base station and termination |
| CN104969503B (en) * | 2013-01-17 | 2018-01-30 | 英特尔Ip公司 | The method of user equipment and user equipment and the base station of correlation are operated in the lte networks |
| CN104969503A (en) * | 2013-01-17 | 2015-10-07 | 英特尔Ip公司 | Channel quality indication for fallback transmission mode over new carrier type |
| CN104254132A (en) * | 2013-06-26 | 2014-12-31 | 上海朗帛通信技术有限公司 | Scheduling method and device in D2D system |
| CN104254132B (en) * | 2013-06-26 | 2018-12-18 | 上海朗帛通信技术有限公司 | Dispatching method and device in a kind of D2D system |
| WO2015062451A1 (en) * | 2013-11-01 | 2015-05-07 | 中兴通讯股份有限公司 | Discovery signal processing method, base station and computer storage medium |
| US10880757B2 (en) | 2013-11-01 | 2020-12-29 | Zte Corporation | Discovery signal processing method, base station and computer storage medium |
| CN105471559A (en) * | 2014-09-05 | 2016-04-06 | 中兴通讯股份有限公司 | Method and device for allocating and determining quasi-co-location |
| CN105471559B (en) * | 2014-09-05 | 2020-01-14 | 中兴通讯股份有限公司 | Quasi-co-location configuration and determination method and device |
| CN105991222A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Configuration information notification method, acquisition method, device, base station and terminal |
| CN106899378A (en) * | 2015-12-18 | 2017-06-27 | 中兴通讯股份有限公司 | The determination method and device of channel status information reports example |
| WO2017101651A1 (en) * | 2015-12-18 | 2017-06-22 | 中兴通讯股份有限公司 | Method and device for determining instance of channel state information reporting |
| CN106899378B (en) * | 2015-12-18 | 2020-09-08 | 中兴通讯股份有限公司 | Method and device for determining channel state information report example |
| WO2018028386A1 (en) * | 2016-08-11 | 2018-02-15 | 中兴通讯股份有限公司 | Channel sending method and apparatus for v2x communication |
| CN110034842A (en) * | 2018-01-12 | 2019-07-19 | 中国移动通信有限公司研究院 | A kind of method and device, equipment, storage medium for transmitting DCI |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102468926B (en) | 2015-05-20 |
| WO2012062154A1 (en) | 2012-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102468926B (en) | Configuration method of downlink control information, network equipment and access node | |
| CN102939734B (en) | Reference signal mode | |
| CN103155503B (en) | Dynamic switching between common reference signal interference cancellation and resource element perforation in channel heterogeneous network altogether | |
| US9979453B2 (en) | Methods and apparatuses for receiving and sending reference signal, user equipment, and base station | |
| CA3019444C (en) | Data transmission method, network-side device, and terminal device | |
| CN112236966A (en) | Wireless communication method, terminal equipment and network equipment | |
| CN105580297B (en) | The method and apparatus of discovery signal for advanced LTE | |
| KR102147682B1 (en) | Channel measuring method and device for cooperative communication in a cellular mobile communication system | |
| US20130286964A1 (en) | Method of Configuring CSI-RS for Coordinated Multiple Point Interference Measurement and Related Communication Device | |
| KR20140099238A (en) | Reference signal for time and/or frequency tracking in a wireless network | |
| CN102461244A (en) | Reuse of resource blocks for coordinated multipoint transmission | |
| CN106063353A (en) | Systems and methods for OFDM with flexible sub-carrier spacing and symbol duration | |
| CN103229428A (en) | Antenna allocation apparatus and method for cellular mobile communication system | |
| CN103327633A (en) | Synchronous TDM-based communication in dominant interference scenarios | |
| CN105227272B (en) | A kind of large scale MIMO transmission method and device | |
| KR20160146899A (en) | Communication systems and methods | |
| KR20140017652A (en) | Methods of pdcch capacity enhancement in lte systems based on a tp-specific reference signal | |
| US11032800B2 (en) | Apparatus for transmitting and receiving downlink data in wireless communications system supporting cooperation between transmission points and method therefor | |
| KR20220031124A (en) | Resource management for reporting signal-to-interference and noise ratio | |
| CN111836368A (en) | Method and device for data transmission | |
| WO2017174018A1 (en) | Method and device for multipoint data transmission | |
| CN104365047A (en) | Signaling of virtual cell ID | |
| CN107294574B (en) | Method and device for multi-transmission point data transmission | |
| CN105515732A (en) | 3D MIMO communication method and apparatus | |
| CN107426742A (en) | Signaling method, reference signal sending method, apparatus and 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 |