CN107006017A - Enode b, user equipment and method for tieing up group's detection in multi-input multi-output system entirely - Google Patents
Enode b, user equipment and method for tieing up group's detection in multi-input multi-output system entirely Download PDFInfo
- Publication number
- CN107006017A CN107006017A CN201480082783.0A CN201480082783A CN107006017A CN 107006017 A CN107006017 A CN 107006017A CN 201480082783 A CN201480082783 A CN 201480082783A CN 107006017 A CN107006017 A CN 107006017A
- Authority
- CN
- China
- Prior art keywords
- srs
- group
- enb
- rnti
- request
- 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
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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
- H04B7/0479—Special codebook structures directed to feedback optimisation for multi-dimensional arrays, e.g. horizontal or vertical pre-distortion matrix index [PMI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
-
- 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 signaling, i.e. of overhead other than pilot signals
-
- 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
- H04L5/0091—Signaling for the administration of the divided path
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Enode b (eNB) is configured as supporting group's detection at multiple-input and multiple-output (MIMO) aerial array.ENB can include the hardware handles circuit for being configured as performing operations described below：Physical downlink control channel (PDCCH) data block including group's SRS request through mask is sent to receive at multiple user equipmenies (UE) place.Hardware handles circuit is configured as receiving the group SRS for adding sum for the SRS for including each UE in multiple UE during group's SRS transmission period and in group's SRS frequency resource.Hardware handles circuit can include the one or more transceivers for being configured to couple to multiple-input and multiple-output (MIMO) aerial array, and mimo antenna array includes the grid of multiple antenna elements；And the reception to the SRS of each UE in multiple UE can be performed at mimo antenna array.
Description
Technical field
Embodiment is related to radio communication.Some embodiments are related to the cellular communications networks including LTE network.Some embodiments
It is related to multiple-input and multiple-output (MIMO) system.Some embodiments are related to detection (sound) reference signal.
Background technology
Base station can use multiple-input and multiple-output (MIMO) aerial array to improve acceptance when with mobile device communication
Energy.In some cases, mimo antenna array can include substantial amounts of antenna element, and this is in terms of diversity gain or when identical
Between and frequency resource from multiple mobile devices receive signal ability in terms of be probably beneficial.However, handling a large amount of antennas
The computation complexity being related to during signal on element is probably challenging or is difficult to processing.It is thus typically necessary to
In the method and system for reducing or mitigating the computation complexity related to mimo antenna array.
Brief description of the drawings
Fig. 1 is the functional diagram of the 3GPP networks according to some embodiments；
Fig. 2 is the functional diagram of the user equipment (UE) according to some embodiments；
Fig. 3 is the functional diagram of the enode b (eNB) according to some embodiments；
Fig. 4 is the example of multiple-input and multiple-output (MIMO) aerial array according to some embodiments；
Fig. 5 shows the operation of group's detection method according to some embodiments；
Fig. 6 shows the operation of another group's detection method according to some embodiments；And
Fig. 7, which is shown, can enable the example of the information element (IE) detected according to the group of some embodiments.
Embodiment
The following description and drawings have absolutely proved specific embodiment so that those skilled in the art can put into practice these implementations
Example.Other embodiments can include the change of structure, logic, electric, process and other side.The part of some embodiments and spy
Levying can be included in the part of other embodiments and feature or can be by the part of other embodiments and character displacement.
The embodiment illustrated in claim includes all available equivalents of these claims.
Fig. 1 is the functional diagram of the 3GPP networks according to some embodiments.Network includes being coupled together via S1 interfaces 115
Radio access network (RAN) (such as illustrated, E-UTRAN or universal terrestrial radio access network of evolution) 100
With core network 120 (for example, being shown as evolution block core (EPC)).For convenience of with for purpose of brevity, core network illustrate only
120 and RAN 100 part.
Core network 120 includes mobility management entity (MME) 122, gateway (service GW) 124 and Packet Data Network
Network diagram closes (PDN GW) 126..RAN 100 includes (its of enode b (eNB) 104 for being used to communicate with user equipment (UE) 102
It may be used as base station).ENB 104 can include grand eNB and low-power (LP) eNB.
MME is functionally similar to legacy services GPRS Support Node (SGSN) control plane.In MME management accesses
In terms of mobility, such as gateway selection and tracking zone list management.Service GW 124 terminates the interface towards RAN 100, and
And route data is grouped between RAN 100 and core network 120.In addition, it can be the local movement for switching between eNB
Property anchor point, and anchor point can also be provided for mobility between 3GPP.Other responsibilities potentially include lawful intercept, charge and some plans
Slightly perform.Service GW 124 and MME 122 can be realized in a physical node or the physical node of multiple separation.PDN GW
126 terminate the SGi interfaces towards packet data network (PDN).PDN GW 126 route number between EPC 120 and outside PDN
According to packet, and it can be the key node charged for strategy execution and to Data Collection.It can be provided for having
The ambulant anchor point of non-LTE accesses.Outside PDN can be any kind of IP network and IP multimedia subsystem (IMS)
Domain.PDN GW 126 and service GW 124 can be realized in a physical node or the physical node of multiple separation.
(grand and micro-) eNB 104 terminates air interface protocol and can be UE 102 the first communication center.In some realities
Apply in example, eNB 104 can realize various logic function, including but not limited to RNC (radio network controllers for RAN 100
Function), such as radio bearer management, up-link and downlink dynamic radio resources management and data packet scheduling,
And mobile management.According to embodiment, UE 102 can be configured as by multi-carrier communication being believed according to ofdma communication technology
Road communicates ofdm communication signal with eNB 104.Ofdm signal can include multiple orthogonal subcarriers.
According to some embodiments, eNB 104 can during group's detection reference signal (SRS) transmission period and
Being received in group's SRS frequency resource includes the group SRS for adding sum of the SRS of each in multiple UE 102.Group SRS
ENB 104 can be enabled to be formed during receiving flow signal from identical UE during flow transmission period for reducing
The channel dimension condensation matrix of complexity.It is described in more detail below these embodiments.
S1 interfaces 115 are the interfaces for separating RAN 100 and EPC 120.It is divided into two parts：In eNB 104 and service
Signaling interface S1-MME between GW 124 between the S1-U and eNB 104 and MME 122 of bearer traffic data.X2 interface
It is the interface between eNB 104.X2 interface includes X2-C and X2-U two parts.X2-C is that the control plane between eNB 104 connects
Mouthful, and X2-U is the user plane interface between eNB 104.
For cellular network, LP cells are generally used for the interior that can not reach coverage extension to outdoor signal very well
Region, or increase mobile phone use the network capacity at very intensive region (for example, railway station) place.As it is used herein,
Term low-power (LP) eNB refers to that the relatively narrowed area for realization such as Femto cell, picocell or Microcell is (smaller than grand
Area is narrower) any suitable relative low power eNB.Femto cell eNB is generally supplied to by Mobile Network Operator
Its house or corporate client.Femto cell is typically the size or smaller szie of residential gateway, and is typically connected to user
Broadband line.Once switching on power, Femto cell connects to mobile operator mobile network, and is house femto
Cell provides the additional coverage generally in the range of 30 to 50 meters.Therefore, because LP eNB are coupled by PDN GW 126, LP
ENB can be Femto cell eNB.Similarly, picocell be usual coverage cell domain (for example building in (office, business
Field, railway station etc.) or recently in cabin) wireless communication system.Picocell eNB can generally be arrived via X2 link connections
Other eNB (for example, by its base station controller (BSC) function connects to grand eNB).Therefore, because LP eNB are via X2 interface
Grand eNB is couple to, LP eNB can be realized by picocell eNB.Picocell eNB or other LP eNB can be incorporated to grand eNB
Some or all of functions.In some cases, this can be referred to as access point base station or enterprise Femto cell.
In certain embodiments, down-chain resource grid can be used for from eNB 104 to UE 102 downlink transmission,
And 104 up-link transmission can utilize similar technology from UE 102 to eNB.Grid can be referred to as resource grid or
The temporal frequency grid of time-frequency resource grid, it is the physical resource in the downlink in each time slot.When this
M- frequency plane represent be ofdm system common practice, it causes radio resources allocation directly perceived.The each column of resource grid and
Often row corresponds respectively to an OFDM symbol and an OFDM subcarrier.The duration of resource grid in time domain corresponds to nothing
A time slot in line electricity frame.Minimum T/F unit is expressed as resource element in resource grid.Each resource grid bag
Multiple resource blocks are included, which depict the mapping of some physical channels to resource element.Each resource block includes the collection of resource element
Close, and the minimum number for the resource that this expression can currently be distributed in a frequency domain.Passed in the presence of using such resource block
Some the different physical down link channels sent.It is especially relevant with the disclosure, in these physical down link channels
Two are physical down link sharing channel and physical downlink control channel.
Physical down link sharing channel (PDSCH) carries the signaling of user data and higher to UE 102 (Fig. 1).Thing
Manage downlink control channel (PDCCH) carrying on the transformat and resource allocation related to PDSCH channels information, with
And other information.It also notifies the transformat related to uplink shared channel, resource allocation and H-ARQ to believe to UE 102
Breath.Generally, based on the channel quality information fed back from UE 102 to eNB 104, eNB 104 perform downlink scheduling (to
The distribution of UE 102 control and shared channel resources block in cell), and subsequent downlink resource allocations information is for (dividing
Dispensing) UE 102 control channel (PDCCH) on be sent to UE 102.
PDCCH transmits control information using CCE (control channel element).Before resource element is mapped to, first will
PDCCH complex-valued symbols are organized into quaternary group, then enter line replacement to it to carry out rate-matched using sub-block interleaver.Use
One or more of these control channel elements (CCE) send each PDCCH, wherein each CCE corresponds to referred to as resource
Nine set of four physical resource elements of groups of elements (REG).Four QPSK symbols are mapped to each REG.Depending on DCI
Size and channel condition, one or more CCE can be used to send PDCCH.Four kinds or more can have been defined in LTE
Different PDCCH forms are planted, it has the CCE (for example, aggregation level L=1,2,4 or 8) of varying number.
Fig. 2 is the functional diagram of the user equipment (UE) according to some embodiments.Fig. 3 is the evolution section according to some embodiments
Point B (eNB) functional diagram.It should be noted that in certain embodiments, eNB 300 can be fixed non-mobile device.UE 200 can
To be UE 102 as shown in Figure 1, and eNB 300 can be eNB 104 as shown in Figure 1.UE 200 can include being used to make
Sent and received with one or more antennas 201 from the letter for going to eNB 300, other eNB, other UE or miscellaneous equipment
Number physical layer circuit 202；And eNB 300 can include being used to come to send and receive using one or more antennas 301
With go to UE 200, other eNB, other UE or miscellaneous equipment physical layer circuit 302.As will be described in more detail, day
Line 201,301 can be multiple-input and multiple-output (MIMO) antenna.UE 200 can also include being used to control the visit to wireless medium
MAC layer (MAC) circuit 204 asked, and eNB 300 can also include being used to control the access to wireless medium
MAC layer (MAC) circuit 304.UE 200 can also include being arranged to the processing for performing operation described herein electricity
Road 206 and memory 208, and eNB 300 can also include being arranged to perform the process circuit 306 of operation described herein
With memory 308.
In certain embodiments, mobile device or miscellaneous equipment described herein can be portable radio communication devices
A part, such as personal digital assistant (PDA), the laptop computer with wireless communication ability or portable computer, web
Tablet personal computer, radio telephone, smart phone, wireless headset, pager, instant message transrecieving equipment, digital camera, access
Point, TV, Medical Devices (for example, heart rate monitor, blood pressure monitor etc.) wirelessly can receive and/or send information
Miscellaneous equipment.In certain embodiments, mobile device or miscellaneous equipment can be configured as being grasped according to 3GPP standards
The UE 102 or eNB 104 of work.In certain embodiments, mobile device or miscellaneous equipment can be configured as according to including IEEE
The other agreements or standard of 802.11 or other ieee standards are operated.In certain embodiments, mobile device or other set
It is standby to include keyboard, display, nonvolatile memory port, multiple antennas, graphics processor, application processor, raise one's voice
One or more of device and other mobile device elements.Display can include the lcd screen of touch-screen.
Antenna 201,301 can include one or more orientations or omnidirectional antenna, including such as dipole antenna, monopole day
Line, paster antenna, loop aerial, microstrip antenna or the other types of antenna transmitted suitable for RF signals.It is many in some multi inputs
Export in (MIMO) embodiment, antenna 201,301 can be effectively isolated to utilize issuable space diversity and difference
The characteristic of channel advantage.Fig. 4 is the example of multiple-input and multiple-output (MIMO) aerial array according to some embodiments.With reference to figure
4, exemplary mimo antenna array 400 is shown with the two dimensional surface battle array for being arranged in the antenna element with the M rows N grids arranged
Row.In this example, the antenna element of half can have positive 45 degree of inclination angle, and second half antenna element can be with negative
45 degree of inclination angle.Therefore, the element 412,422,432 shown and other solid lines can have positive 45 degree of angle；And show
Element 414,424,434 and other dotted lines can have minus 45 degree of angle.
One possible arrangement includes value M=10 and N=2.There is two layers in mimo antenna array 400, there are 40
Antenna element.The signal received at 40 antenna elements may be different but related, particularly when the spacing between element is little
When.Therefore, the diversity gain realized by the mimo antenna array 400 with 40 antenna elements, may be less as receiving
The diversity gain realized during 40 independent signals is high.However, may be increased except by tool using this large amount of antenna element
Diversity gain outside the diversity gain that the antenna configuration for having 4 or 8 antenna elements is realized.Therefore, in some cases, MIMO
Aerial array 400 is considered full dimension MIMO (FD-MIMO) array.
Although UE 200 and eNB 300 are each shown to have one in some independent function element, function element
Or it is multiple can be combined, and software-configured elements (e.g., including processing of digital signal processor (DSP) can be passed through
Element) and/or the combinations of other hardware elements realize.For example, some elements can include one or more microprocessors,
DSP, field programmable gate array (FPGA), application specific integrated circuit (ASIC), RF IC (RFIC) and at least it is used for
Perform various hardware and the combination of logic circuit of function as described herein.In certain embodiments, function element can refer to
The one or more processes operated on one or more treatment elements.
Embodiment can be realized with one kind in hardware, firmware and software or its combination.Embodiment can also be implemented
To be stored in the instruction in computer readable storage devices, it can be read and be performed by least one processor and retouched herein with performing
The operation stated.Computer readable storage devices can include appointing with the readable form storage information of machine (for example, computer)
What non-transient mechanism.For example, computer readable storage devices can include read-only storage (ROM), random access memory
(RAM), magnetic disk storage medium, optical storage media, flash memory device and other storage devices and medium.Some embodiments can be wrapped
One or more processors are included, and the instruction being stored in computer readable storage devices can be configured with.
According to embodiment, eNB 104 can include hardware handles circuit, and it is configured as sending detection reference signal
(SRS) radio network temporary identifier (SRS-RNTI) at the multiple UE that may include UE 102 for receiving, for right
The detection of group's SRS request at UE.Hardware handles circuit can be additionally configured to SRS-RNTI being applied to group's SRS request
Include the physical downlink control channel of group's SRS request through mask to produce group's SRS request through mask, and send
(PDCCH) data block.Hardware handles circuit can be additionally configured to during group's SRS transmission period and in group SRS frequencies
The group SRS for adding sum for the SRS for including each UE in multiple UE is received in rate resource.It is described in more detail below these
Embodiment.
Fig. 5 shows the operation of group's detection method according to some embodiments.It is important to note that comparing Fig. 5 institutes
The operation shown or process, method 500 can include more or even less operation or process.In addition, the implementation of method 500
Example is not necessarily limited to the time sequencing shown in Fig. 5.In the method 500 of description, Fig. 1-4 and Fig. 6-7 may be referred to.Although can manage
Solution, method 500 can be implemented with any other suitable system, interface and component.For example, for purpose of explanation, Ke Yican
Examine the mimo antenna array 400 of figure 4 described above.But the technology of method 500 and it is not necessarily limited to this.
Although in addition, describing method 500 and its with reference to the eNB 104 or UE 102 according to 3GPP or other standard operations
Its method, but the embodiment of these methods is not limited only to those eNB 104 or UE 102, but can also be in other mobile devices
It is upper to implement, such as Wi-Fi access points (AP) or subscriber station (STA).In addition, method 500 and other methods described herein can be with
(including it is configured as by the wireless device for being configured as operating in the wireless communication system of other suitable types according to such as
System that IEEE 802.11 various ieee standards are operated) realize.
In the operation 505 of method 500, can send SRS radio network temporary identifiers (SRS-RNTI) is used in bag
Include the reception at UE 102 multiple UE.UE can be distributed to SRS groups, and SRS-RNTI can be for SRS groups
Retain, and UE 102 can be enabled to detect group's SRS request, as will be described below.In certain embodiments, SRS-
RNTI to multiple UE transmission can include the biography of the SRS-RNTI in the special control message for each UE being directed in multiple UE
It is defeated.As an example, the information element (IE) of radio resource control (RRC) control message can include SRS-RNTI or SRS-
RNTI index, it can refer to the predetermined group of RNTI known at UE 102.Special control message can be any suitable
Time send, including during for the establishment of connection process between eNB 104 and UE 102 or in the renewal process phase
Between.
It can be sent in operation 510, including the general RRC IE of SRS sequential parameters by eNB 104.SRS sequential parameters can
It is possibly realized with the group's SRS bit sequences detected to group can be used for by UE in UE determination, as will be described below.
Using group's SRS bit sequences the SRS sent by UE 102 can be formed at UE 102.As an example, bit sequence can
To be input into encoder functionality, such as forward error correction (FEC), intertexture, bit to symbol map or other functions are to produce use
In the modulation symbol of transmission.As it was previously stated, in certain embodiments, modulation symbol can be used for forming the OFDM letters for SRS
Number.
Fig. 7 is shown can realize the example for the information element (IE) that group detects according to some embodiments.General RRC
IE can be sent in one or more broadcast control messages (it is can be received at multiple UE).Fig. 7 show one this
The general RRC IE of sample example, wherein general SRS IE 705 (it can be included in RRC or other control messages) can be with
Including other SRS parameters or information 710 (can be empty in some cases) and SRS configuration indexs 720.SRS configuration indexs
720 can be the index (such as the index in the range of 0-1023) with reference to predefined SRS bit sequences, or can be
For the input of formula or other algorithms that SRS bit sequences can be generated at UE, such as seed or the like.It should note
Meaning, the SRS bit sequences detected for group are not limited to be preserved for the special group SRS bit sequences of group's detection, although
This arrangement can also be used.SRS bit sequences can be any suitable SRS sequences, and in some cases, for group
The SRS bit sequences of group detection can be used for different time and/or other UE of frequency resource are detected for non-group.As schemed
Shown in 7, general SRS IE 705 can be from 3GPP or other standards " SoundingRS-UL-
ConfigCommonAperiodic-r13 " IE or the like, but these embodiments are not restricted.
In operation 515, each UE that can be into multiple UE sends the special SRS configurations including the cyclic shift for UE
IE.Fig. 7 example, which is shown, can include the special of other SRS parameters or information 760 (can be empty in some cases)
SRS IE 755 and the SRS cyclic shifts 770 for UE 102.The SRS sent by UE 102 can be by that will be directed to UE
102 cyclic shift is applied to previously described SRS to determine.In certain embodiments, for some or all of UE circulation
Displacement can be different, and this may cause some or all of UE to be sent out during section of common or overlapping time in same RE set
Send different SRS to eNB 104.As shown in fig. 7, special SRS IE 755 can be from 3GPP or other standards
" SoundingRS-UL-ConfigDedicated " IE or the like, but these embodiments are not restricted.
In operation 520, SRS-RNTI can be applied to group's SRS request to produce group's SRS request through mask.Can
Include the PDCCH data blocks of group's SRS request through mask to be sent in operation 525.In certain embodiments, by SRS-RNTI
It is applied to CRC (CRC) position that group's SRS request can include being applied to SRS-RNTI into group's SRS request.
In operation 530, group SRS can be received from multiple UE.ENB 104 can include being configured to couple to MIMO days
One or more transceivers of linear array, mimo antenna array includes the grid of multiple antenna elements and can be in mimo antenna
The reception to group SRS is performed at array.Therefore, each UE in multiple UE can during group's SRS transmission period and
In group's SRS frequency resource send SRS (or SRS cyclic shift version), and send SRS summation (by each SRS
Channel weights) group's SRS signal can be formed or group's SRS signal is contributed.
In operation 535, it may be determined that the composite received sample vector of the UE at mimo antenna array.It is determined that can include making
With FFT (FFT), matched filtering or other technologies.As an example, when SRS is ofdm signal, Ke Yi
FFT computings are performed to the reception signal at each antenna element during the OFDM symbol period, are used for each resource element to produce
Plain (RE) or subcarrier FFT samples.Therefore, each RE (or at least multiple RE) then can be with the sample vector that is received
(its length is equal to the quantity of antenna element in mimo antenna array) is associated.Therefore, it can essentially be determined for each RE multiple
Splice grafting receives sample vector, and can combine the determination performed to multiple composite received sample vectors in some cases.For example,
FFT operations are inherently operated on multiple RE.However, embodiment is not limited to such implementation.
Concept can be illustrated using following FD-MIMO models.On each RE, it can be held from each antenna element
FFT values are extracted in capable FFT operations, to form the composite received sample vector for RE, it can be modeled as：
Y=HPx+n
In a model, the dimension for receiving sample vector y is Nr× 1, H are Nr×NtMatrix, P is Nt×NpMatrix, x is Np×
1 data symbol vectors, n is Nr× 1 noise vector, NrIt is the quantity of reception antenna, NtIt is the quantity of antenna element, and NpIt is
The quantity of layer.If for example, aerial array is 2D aerial arrays as shown in Figure 4, Nt=2NM and Nt8 can be noticeably greater than.
For example as N=2 and M=10, Nt=40.
When the quantity of antenna element is relatively large, matrix computations and other calculating are probably very high, are particularly worked as
This calculating is possible must be when each RE be performed.It therefore, it can by by the total N of antenna elementtVirtually turn to smaller
Quantity realizes the reduction of computational complexity.As an example, less virtual element quantity can be 1,2,4 or 8, it can be with
Quantity with the antenna port available for the channel state information reference signals (CSI-RS) in 3GPP or other standards is compatible.
Above-mentioned model can be rewritten as：
Matrix PeIt is Nt×NeMatrix, PdIt is Ne×NpMatrix, and the moonIt is dimension Nr×NeAnd Nt=NeK's has
Imitate channel matrix.It therefore, it can reduce the columns in efficient channel matrix, for example, be reduced to 8 from previous example value 40.
As a part for model, average covariance matrices estimation can be determined by operations described below：Connect from multiple UE
Each SRS is received, average channel estimation is formed for each userBy (relative to UE) to each average channel estimation with
The matrix product of its corresponding hermitian transposition carries out averagely forming average covariance matrices estimation, and it is expressed as follows：
In the equation, right-hand side is the singular value decomposition (SVD) of average covariance matrices estimation, and vector matrix
On " H " symbol represent Hermitian transposition.The row of matrix V are the feature bundles of average covariance matrices estimation, and matrix S diagonal item is
Characteristic value.Previous result can also be by using the sample vector of the reception associated with each SRS from multiple UE
It is not channel estimation to obtain, such as
Under any circumstance, the feature bundle associated with most strong characteristic value can be selected as matrix PeRow.As showing
Example, if most strong 8 feature bundles are selected, efficient channel matrixAlso there are 8 row.
Improvement in terms of the calculating of above-mentioned processing can be realized by group's detection.As it was previously stated, in mimo antenna battle array
The group SRS received at row can be included during group's SRS transmission period and in group's SRS frequency resource from multiple
The SRS of each UE in UE plus and.It can be put down for the matrix product of group SRS reception sample vector and its Hermitian transposition
Go out and above-mentioned SVD identicals result.That is each SRS plus sum matrix product includes single SRS (in last equation
It is required) the matrix product sums of some intersectionproducts between difference UE SRS.Statistically, the possible average out to zero of intersectionproduct, because
For them caused by the different UE sent on a different channel.It therefore, it can obtain by using group's detection
Above-mentioned required SVD.
In operation 540, group SRS can be used to receive the square of the transposition of sample vector and group SRS reception sample vectors
Battle array product come determine average covariance matrices estimate.It should be noted that average actually may be from connecing more than single group SRS
Receive sample vector.Group SRS i.e. from multiple periods receives sample vector (wherein group SRS is sent by UE groups) can be with
Used in operation 540.In operation 545, the set of the characteristic value and feature bundle estimated for average covariance matrices can be used
SVD or other suitable technologies are determined.Can be at operation 550 from the reduction set of the Resource selection feature bundle of feature bundle；
And in operation 555, the reduction set of feature bundle can be included in channel dimension condensation matrix as row.In some implementations
In example, the selected feature bundle for reduction set can be associated with the characteristic value of amplitude peak.
It should be noted that aforesaid operations can occur at each RE or multiple RE, and each UE in these RE can be with
It is associated with channel dimension condensation matrix.In addition, for each RE, can be in the flow transmission period phase for UE 102
Between, the flow for determining to be based at least partially on the reception signal at the antenna element of mimo antenna array for UE 102 is received
Sample vector.Flow transmission period can be exclusive to group's SRS transmission period, and can also be for other UE's
Other SRS transmission periods are exclusive.
In operation 560, specific RE channel dimension condensation matrix can be applied to receive sample arrow for RE flow
Amount, to produce the reception sample vector for the reduction dimension that can be modeled according to previously described efficient channel.Due to virtualizing it
Efficient channel afterwards, which may compare previously described full dimension channel, has the dimension of much less, therefore decoding or demodulation operation also may be used
It is simplified.Therefore, in operation 565, the reception sample vector for reducing dimension can be demodulated, with for specific RE from star
Seat (or corresponding data bit) produces the soft decision of solution code sign or symbol or bit.Furthermore, it is possible to be performed at other RE
Similar operation, and can further be handled using fec decoder device or other kinds of technologies from some or all these behaviour
The solution code sign or bit (hard decision) or soft decision of work, to produce one or more decoded data blocks.
ENB 104 can also be coordinated with other eNB of such as adjacent eNB etc.In some cases, those eNB
Or the UE supported by them may be interfered during group's detection time section or other time section to eNB 104.It is right
In the estimation of the channel covariance matrices of the part detected as group, the UE supported by adjacent eNB or other eNB is in eNB
The transmission to detectable signal is avoided to be probably beneficial during 104 group's detection time section.Can be by being assisted between appropriate eNB
Conditioning technology performs the coordination between eNB 104 and adjacent eNB or other eNB.It is, for example, possible to use including being used as 3GPP, LTE
Or the signaling format and correlated process for signaling between eNB of a part for other standards.It therefore, it can define, create or repair
Change the information element (IE) in this standard so that including relevant information, these relevant informations can enable eNB to be visited in group
It is reduced or avoided during survey or other detection times section to mutual interference.
Fig. 6 shows the operation of another group's detection method according to some embodiments.As previously discussed with respect to the institute of method 500
State, compare the operation shown in Fig. 6 or process, the embodiment of method 600 can include more or even less operation or
Process, and the embodiment of method 600 is not necessarily limited to time sequencing shown in Fig. 6.In the method 600 of description, it may be referred to
Fig. 1-5 and Fig. 7, although it is understood that method 600 can be realized with any other suitable system, interface and component.In addition,
The embodiment of method 600 can refer to eNB 104, UE 102, AP, STA or other are wireless or mobile device.
It should be noted that, although be not so limited, but can at UE 102 implementation 600, it is and real at eNB 104
Applying method 500.Included certain operations can be similar to included in another method in a method in method 500,600
Operation, and some or all discussion related to a method in method 500,600 go for another method.
For example, method 500 can include sending message by eNB 104, and method 600 can be included at UE 102 to similar or correlation
The reception of message.Therefore, some or all descriptions to message can apply to both methods 500,600.
In operation 605, the SRS radio network temporary identifier associated with SRS groups can be received from eNB 104
(SRS-RNTI).SRS-RNTI can be received in the special control message for UE 102.In certain embodiments, SRS groups
Group can include UE 102 and other UE.In operation 610, can be received at UE 102 includes the general RRC of SRS sequential parameters
IE, and SRS sequential parameters can make it possible the determination to group's SRS bit sequences at UE 102.In some realities
Apply in example, RRC IE can be general SRS IE 705 or the like.In operation 615, it can receive including for UE's 102
The special SRS configurations IE of cyclic shift.In certain embodiments, special SRS configurations IE can be special SRS IE 755 or class
Like thing.
It can be received in operation 620, including the PDCCH data blocks of group's SRS request at UE 102.In operation 625,
SRS-RNTI can apply to PDCCH data blocks to detect group's SRS request.In certain embodiments, SRS-RNTI to PDCCH
The application of data block can include CRC (CRC) position that SRS-RNTI is applied to group's SRS request.In operation
630, SRS can be sent at UE 102.Transmission can in response to the detection to group's SRS request, and can transmission when
Between send SRS during section and in the frequency resource of the group's SRS transmission carried out by SRS groups.As it was previously stated, group can be used
Group SRS bit sequences and SRS signal is formed for UE 102 cyclic shift.
Disclosed herein is enode b (eNB).ENB can include hardware handles circuit, and it is configured as：Send detection
Reference signal (SRS) radio network temporary identifier (SRS-RNTI) for multiple user equipmenies (UE) place receive, with
The detection of group's SRS request to UE, and SRS-RNTI is applied to group's SRS request to produce the group through mask
SRS request.Hardware handles circuit, which can be additionally configured to send, includes the physical down link control of group's SRS request through mask
Channel (PDCCH) data block processed, and receive during group's SRS transmission period and in group's SRS frequency resource and include
The SRS of each UE in multiple UE plus sum group SRS.Hardware handles circuit can include being configured to couple to
One or more transceivers of mimo antenna array, mimo antenna array includes the grid of multiple antenna elements.Can be in MIMO
The reception to the SRS of each UE in multiple UE is performed at aerial array.In certain embodiments, mimo antenna array can
With the two-dimensional planar array including antenna element.In certain embodiments, mimo antenna array can include at least 16 members
The full dimension mimo antenna array of part.Hardware handles circuit can be additionally configured to be based at least partially on group's SRS transmission time
Reception signal at the antenna element of mimo antenna array determines that group SRS receives sample vector during section.
Hardware handles circuit can be additionally configured to be based at least partially on group SRS reception sample vectors and group SRS
The matrix product for receiving the transposition of sample vector determines that average covariance matrices are estimated, and determines that average covariance matrices are estimated
The set of the characteristic value and feature bundle of meter.Hardware handles circuit can be additionally configured to according to the amplitude of corresponding characteristic value come from
The reduced set of feature bundle is selected to merge to form channel dimension condensation matrix in the set of feature bundle.In certain embodiments, channel
Dimension reduction matrix column can include the reduction set of feature bundle.Hardware handles circuit can be additionally configured to be directed in UE
One UE, during the flow transmission period of the UE, is based at least partially at the antenna element of mimo antenna array
Signal is received to determine that flow receives sample vector.Hardware handles circuit can be additionally configured to should by channel dimension condensation matrix
Sample vector is received for flow, to form the flow reception sample vector for reducing dimension, and the flow for reducing dimension is demodulated
Sample vector is received to produce one or more soft metrics of decoding data symbol or data symbol.
In certain embodiments, UE can be distributed to SRS groups, and SRS-RNTI can be retained for SRS groups.
In some embodiments, SRS-RNTI to group's SRS request application can include SRS-RNTI being applied to group's SRS request
CRC (CRC) position.In certain embodiments, SRS-RNTI to multiple UE transmission can be included in for multiple UE
In each UE special control message in transmit SRS-RNTI.Hardware handles circuit can be additionally configured to send to multiple UE
Wireless universal electric resources control (RRC) information element (IE) including SRS sequential parameters, to enable to the group SRS ratios at UE
The determination of special sequence.In certain embodiments, group can be based at least partially on from the SRS received of each UE in multiple UE
SRS bit sequences.Each UE that hardware handles circuit can be additionally configured into UE, which is sent, to be included moving for the circulation of the UE
The special SRS configurations IE of position.In certain embodiments, can also be at least in part from the SRS received of each UE in multiple UE
Can be different based on the cyclic shift for the UE, and at least some UE cyclic shift.In some embodiments
In, SRS-RNTI can be retained for the generic data block being included in PDCCH, generic data block is intended for multiple UE.
Disclosed herein is a kind of non-transient computer readable storage medium storing program for executing of store instruction, instruct for by one or more
Processor runs to perform the operation sent and received signal at enode b (eNB) place.These operation can configure one or
Multiple processors are to perform operations described below：Send detection reference signal (SRS) radio network temporary identifier (SRS-RNTI)
For being received at multiple user equipmenies (UE) place, for the detection to group's SRS request at UE, and should by SRS-RNTI
For group's SRS request to produce group's SRS request through mask.These operations can further configure one or more processing
Device is to send physical downlink control channel (PDCCH) data block including group's SRS request through mask, and in group
Receive during the SRS transmission period and in group's SRS frequency resource include each UE in multiple UE SRS's plus and
Group SRS.In certain embodiments, the SRS to each UE in multiple UE can be performed at mimo antenna array
Reception, be configured to couple to mimo antenna array including one or more transceivers at eNB.In some implementations
In example, it is right in the special control message for each UE in multiple UE that SRS-RNTI can be included in multiple UE transmission
SRS-RNTI transmission.These operations, which can further configure one or more processors and be sent to multiple UE, includes SRS sequences
Wireless universal electric resources control (RRC) information element (IE) of parameter, to enable to group's SRS bit sequences at UE really
It is fixed.In certain embodiments, group SRS bit sequences can be based at least partially on from the SRS received of each UE in multiple UE
Row.
There is disclosed herein the method sent and received signal at enode b (eNB) place.Method can include sending visiting
Reference signal (SRS) radio network temporary identifier (SRS-RNTI) is surveyed for being received at multiple user equipmenies (UE) place, with
It is applied to group's SRS request to produce the group through mask for the detection to group's SRS request at UE, and by SRS-RNTI
SRS request.Method can also include sending including the physical downlink control channel of group's SRS request through mask
(PDCCH) data block, and received during group's SRS transmission period and in group's SRS frequency resource including from many
The SRS of each UE in individual UE plus sum group SRS.In certain embodiments, it can be performed at mimo antenna array pair
The SRS of each UE in multiple UE reception, coupling is configured as including one or more transceivers at eNB
To mimo antenna array.In certain embodiments, SRS-RNTI to multiple UE transmission can be included in in multiple UE
Transmission in each UE special control message to SRS-RNTI.Method can also include sending to multiple UE including SRS sequences
Wireless universal electric resources control (RRC) information element (IE) of parameter, to enable to group's SRS bit sequences at UE really
It is fixed.In certain embodiments, group's SRS bits can be based at least partially on from the SRS received of each UE in multiple UE
Sequence.
There is disclosed herein a kind of user equipment (UE).UE can include hardware handles circuit, and it is configured as from evolution
Node B (eNB) receives detection reference signal (SRS) radio net associated with the SRS groups including UE and other UE
Temporary identifier (SRS-RNTI).Hardware handles circuit, which can be additionally configured to receive, includes the physical down of group's SRS request
Link control channel (PDCCH) data block, and SRS-RNTI is applied to the PDCCH data blocks to detect group's SRS request.
Hardware handles circuit can be additionally configured in response to the detection to group's SRS request, during group's SRS transmission period and
SRS is sent in group's SRS frequency resource.In certain embodiments, the application of SRS-RNTI to PDCCH data blocks can include
SRS-RNTI is applied to CRC (CRC) position of group's SRS request.In certain embodiments, can be for UE
Special control message in receive SRS-RNTI.Hardware handles circuit, which can be additionally configured to receive from eNB, includes SRS sequences ginseng
Several wireless universal electric resources control (RRC) information element (IE), to enable the determination to group's SRS bit sequences at UE.
In certain embodiments, transmitted SRS can be based at least partially on group's SRS bit sequences.Hardware handles circuit may be used also
Include configuring IE for the special SRS of UE cyclic shift to be configured as receiving from eNB.In certain embodiments, it is transmitted
SRS can also be based at least partially on the cyclic shift for UE.
Summary is provided to meet 37C.F.R. 1.72 (b) sections, clause requirement will allow reader to understand fully that this technology is disclosed
Essence and main points.Summary is carried in the case where understanding that it will not be used to limit or explain the scope or implication of claim
Hand over.Therefore, appended claims are integrated into embodiment, and each claim is relied on own as independent reality
Apply example.
Claims (24)
1. a kind of enode b (eNB), the eNB includes the hardware handles circuit for being configured as performing operations described below：
Detection reference signal (SRS) radio network temporary identifier (SRS-RNTI) is sent at multiple user equipmenies (UE)
Place is received, for the detection to group's SRS request at the UE；
The SRS-RNTI is applied to group's SRS request to produce group's SRS request through mask；
Transmission includes physical downlink control channel (PDCCH) data block of group's SRS request through mask；And
Received during group's SRS transmission period and in group's SRS frequency resource including every in the multiple UE
Individual UE SRS plus sum group SRS.
2. eNB as claimed in claim 1, wherein：
The hardware handles circuit includes being configured to couple to the one or more of multiple-input and multiple-output (MIMO) aerial array
Transceiver, the mimo antenna array includes the grid of multiple antenna elements；And
Reception to the SRS of each UE in the multiple UE is by the mimo antenna array received.
3. eNB as claimed in claim 2, wherein the mimo antenna array includes the two-dimensional planar array of antenna element.
4. eNB as claimed in claim 2, wherein the mimo antenna array is to include the full dimension of at least 16 antenna elements
Mimo antenna array.
5. eNB as claimed in claim 2, the hardware handles circuit is additionally configured to be based at least partially on the group
Reception signal during the SRS transmission period at the antenna element of the mimo antenna array determines that group SRS receives sample
This vector.
6. eNB as claimed in claim 5, the hardware handles circuit is additionally configured to：
It is based at least partially on the square that the group SRS receives the transposition of sample vector and group SRS reception sample vectors
Battle array product come determine average covariance matrices estimate；
Determine the set of the characteristic value and feature bundle of the average covariance matrices estimation；
The reduction set of feature bundle is selected from the set of the feature bundle according to the amplitude of corresponding characteristic value；
Channel dimension condensation matrix is formed, wherein the row of the channel dimension condensation matrix include the reduced set of the feature bundle
Close.
7. eNB as claimed in claim 6, the hardware handles circuit is additionally configured to：
For a UE in the UE, during the flow transmission period of the UE, it is based at least partially in the MIMO
Reception signal at the antenna element of aerial array determines that flow receives sample vector；
The channel dimension condensation matrix is applied to the flow and receives sample vector, to form the flow reception for reducing dimension
Sample vector；And
The demodulation flow for reducing dimension receive sample vector with produce one of decoding data symbol or data symbol or
Multiple soft metrics.
8. eNB as claimed in claim 1, wherein the UE is distributed into SRS groups, and retains institute for the SRS groups
State SRS-RNTI.
9. eNB as claimed in claim 1, wherein the application of the SRS-RNTI to group's SRS request is included by described in
SRS-RNTI is applied to CRC (CRC) position of group's SRS request.
10. eNB as claimed in claim 1, wherein the SRS-RNTI to the multiple UE transmission are included in for described
Transmission in the special control message of each UE in multiple UE to the SRS-RNTI.
11. eNB as claimed in claim 1, wherein：
The hardware handles circuit, which is additionally configured to send to the multiple UE, includes the wireless universal electric resources of SRS sequential parameters
(RRC) information element (IE) is controlled, to enable the determination to group's SRS bit sequences at the UE；
The group SRS bit sequences are based at least partially on from the SRS received of each UE in the multiple UE.
12. eNB as claimed in claim 11, wherein：
Each UE that the hardware handles circuit is additionally configured into the multiple UE, which is sent, to be included moving for the circulation of the UE
The special SRS configurations IE of position；
The cyclic shift for the UE is also based at least partially on from the SRS received of each UE in the multiple UE；And
And
Cyclic shift at least some UE is different.
13. eNB as claimed in claim 1, wherein retaining the SRS- for the generic data block being included in the PDCCH
RNTI, the generic data block is intended for multiple UE.
14. a kind of non-transient computer readable storage medium storing program for executing of store instruction, the instruction is used for by one or more processors
Run to perform the operation sent and received signal at enode b (eNB) place, the one or more of places of these operative configurations
Device is managed to be configured to the eNB to perform operations described below：
Detection reference signal (SRS) radio network temporary identifier (SRS-RNTI) is sent at multiple user equipmenies (UE)
Place is received, for the detection to group's SRS request at the UE；
The SRS-RNTI is applied to group's SRS request to produce group's SRS request through mask；
Transmission includes physical downlink control channel (PDCCH) data block of group's SRS request through mask；And
Received during group's SRS transmission period and in group's SRS frequency resource including every in the multiple UE
Individual UE SRS plus sum group SRS.
15. non-transient computer readable storage medium storing program for executing as claimed in claim 14, wherein in multiple-input and multiple-output (MIMO) day
The reception to the SRS of each UE in the multiple UE is performed at linear array, including one at the eNB or
Multiple transceivers are configured to couple to the mimo antenna array.
16. non-transient computer readable storage medium storing program for executing as claimed in claim 14, wherein：
The special control that the SRS-RNTI to the multiple UE transmission is included in for each UE in the multiple UE disappears
To the transmission of the SRS-RNTI in breath；
The operation, which further configures the eNB and sent to the multiple UE, includes the wireless universal electric resources of SRS sequential parameters
(RRC) information element (IE) is controlled, to enable the determination to group's SRS bit sequences at the UE；And
The group SRS bit sequences are based at least partially on from the SRS received of each UE in the multiple UE.
17. the method that one kind sends and receives signal at enode b (eNB) place, methods described includes：
Detection reference signal (SRS) radio network temporary identifier (SRS-RNTI) is sent at multiple user equipmenies (UE)
Place is received, for the detection to group's SRS request at the UE；
The SRS-RNTI is applied to group's SRS request to produce group's SRS request through mask；
Transmission includes physical downlink control channel (PDCCH) data block of group's SRS request through mask；And
Received during group's SRS transmission period and in group's SRS frequency resource including every in the multiple UE
Individual UE SRS plus sum group SRS.
18. method as claimed in claim 17, wherein being performed at multiple-input and multiple-output (MIMO) aerial array to from institute
The SRS of each UE in multiple UE reception is stated, coupling is configured as including one or more transceivers at the eNB
It is connected to the mimo antenna array.
19. method as claimed in claim 17, wherein：
The special control that the SRS-RNTI to the multiple UE transmission is included in for each UE in the multiple UE disappears
To the transmission of the SRS-RNTI in breath；
Methods described also includes sending wireless universal electric resources control (RRC) letter for including SRS sequential parameters to the multiple UE
Element (IE) is ceased, to enable the determination to group's SRS bit sequences at the UE；And
The group SRS bit sequences are based at least partially on from the SRS received of each UE in the multiple UE.
20. a kind of user equipment (UE), the UE includes the hardware handles circuit for being configured as performing operations described below：
The detection reference signal associated with the SRS groups including the UE and other UE is received from enode b (eNB)
(SRS) radio network temporary identifier (SRS-RNTI)；
Reception includes physical downlink control channel (PDCCH) data block of group's SRS request；
The SRS-RNTI is applied to the PDCCH data blocks to detect group's SRS request；And
In response to the detection to group's SRS request, during group's SRS transmission period and in group's SRS frequency resource
Middle transmission SRS.
21. UE as claimed in claim 20, wherein the application of the SRS-RNTI to the PDCCH data blocks is included by described in
SRS-RNTI is applied to CRC (CRC) position of group's SRS request.
22. UE as claimed in claim 20, wherein receiving the SRS-RNTI in the special control message for the UE.
23. UE as claimed in claim 20, wherein：
The hardware handles circuit, which is additionally configured to receive from the eNB, includes the wireless universal electric resources control of SRS sequential parameters
(RRC) information element (IE) is made, to enable the determination to group's SRS bit sequences at the UE；And
Transmitted SRS is based at least partially on the group SRS bit sequences.
24. UE as claimed in claim 23, wherein：
The hardware handles circuit, which is additionally configured to receive from the eNB, includes the special SRS of the cyclic shift for the UE
Configure IE；And
Transmitted SRS is also based at least partially on the cyclic shift for the UE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/091345 WO2016077975A1 (en) | 2014-11-18 | 2014-11-18 | Evolved node-b and user equipment and methods for group sounding in full-dimension multiple-input multiple-output systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107006017A true CN107006017A (en) | 2017-08-01 |
| CN107006017B CN107006017B (en) | 2020-05-19 |
Family
ID=56013032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480082783.0A Expired - Fee Related CN107006017B (en) | 2014-11-18 | 2014-11-18 | Evolved node B, user equipment and method for group probing in a full-dimensional multiple-input multiple-output system |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3222099A4 (en) |
| CN (1) | CN107006017B (en) |
| WO (1) | WO2016077975A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253142A1 (en) * | 2020-06-15 | 2021-12-23 | Qualcomm Incorporated | Group sounding reference signal (srs) configuration in full-duplex |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7073529B2 (en) * | 2018-11-15 | 2022-05-23 | 株式会社Ｎｔｔドコモ | Terminals, base stations and communication methods |
| CN116015585B (en) * | 2022-12-14 | 2024-06-18 | 中国联合网络通信集团有限公司 | SRS resource allocation system, method, electronic equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120120864A1 (en) * | 2009-07-29 | 2012-05-17 | Kyocera Corporation | Wireless base station |
| EP2552169A1 (en) * | 2010-02-11 | 2013-01-30 | China Academy of Telecommunications Technology | Method for sending sounding reference signals (srs), trigger method and device thereof |
| US20140003262A1 (en) * | 2012-07-02 | 2014-01-02 | Hong He | Sounding reference signal (srs) mechanism for intracell device-to-device (d2d) communication |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8824584B2 (en) * | 2009-02-24 | 2014-09-02 | Lg Electronics Inc. | Method for transmitting sounding reference signal in MIMO wireless communication system and apparatus therefor |
| CN101827444B (en) * | 2010-03-31 | 2015-03-25 | 中兴通讯股份有限公司 | Signaling configuration system and method for measuring reference signal |
| CN102083033B (en) * | 2010-09-13 | 2016-08-03 | 电信科学技术研究院 | Aperiodic detection reference signal transmission instruction and transmission method, equipment |
-
2014
- 2014-11-18 EP EP14906164.0A patent/EP3222099A4/en not_active Withdrawn
- 2014-11-18 WO PCT/CN2014/091345 patent/WO2016077975A1/en active Application Filing
- 2014-11-18 CN CN201480082783.0A patent/CN107006017B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120120864A1 (en) * | 2009-07-29 | 2012-05-17 | Kyocera Corporation | Wireless base station |
| EP2552169A1 (en) * | 2010-02-11 | 2013-01-30 | China Academy of Telecommunications Technology | Method for sending sounding reference signals (srs), trigger method and device thereof |
| US20140003262A1 (en) * | 2012-07-02 | 2014-01-02 | Hong He | Sounding reference signal (srs) mechanism for intracell device-to-device (d2d) communication |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253142A1 (en) * | 2020-06-15 | 2021-12-23 | Qualcomm Incorporated | Group sounding reference signal (srs) configuration in full-duplex |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3222099A1 (en) | 2017-09-27 |
| WO2016077975A1 (en) | 2016-05-26 |
| CN107006017B (en) | 2020-05-19 |
| EP3222099A4 (en) | 2018-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Truong et al. | The viability of distributed antennas for massive MIMO systems | |
| CN110537337A (en) | The multi-site MIMO communication system with mixed-beam forming in L1 segmentation framework | |
| CN101877918B (en) | Equipment and method for dynamic clustering of base station in mobile communication | |
| US9148208B2 (en) | Antenna selection codebook for full dimensional MIMO systems | |
| CN105144599B (en) | For generate and the method for launch channel feedback and transmitter device with for receiving and retrieving the method and receiver apparatus of channel feedback | |
| CN109075837A (en) | Narrow band channel measurement and CQI report based on beam reference signal | |
| CN110024301A (en) | Stable state beam scanning and code book generate | |
| CN109644023A (en) | State the same position of standard between mutiple antennas port | |
| CN108713301A (en) | Narrowcasting/multicast design | |
| CN107079513A (en) | It is arranged to report the device of the non-periodical channel state information of dual link | |
| WO2011088018A2 (en) | A ue initiated frequency partitioning based comp scheme for downlink cellular communications | |
| KR20140041884A (en) | Transmit diversity method, and related device and system | |
| EP3085141B1 (en) | Beamforming for coordinated multipoint communications | |
| US20140140319A1 (en) | Method for transmitting data in a communication system, first network node and second network node thereof | |
| CN110352566B (en) | Distributed MIMO and/or transmit diversity in cloud radio access network systems | |
| CN105553527B (en) | Apparatus and method for wireless communication | |
| CN109787663A (en) | A kind of user that be used to wirelessly communicate, the method and apparatus in base station | |
| CN110120830A (en) | A kind of base station, method for wireless communications and device in user equipment | |
| US11101868B2 (en) | Method, apparatus and storage device for performing decorrelation across spatial layers | |
| CN107294574B (en) | Method and device for multi-transmission point data transmission | |
| CN109478926A (en) | For the port index of the CSI-RS with greater amount of antenna port for EFD-MIMO | |
| CN107006017A (en) | Enode b, user equipment and method for tieing up group's detection in multi-input multi-output system entirely | |
| EP3001626B1 (en) | Eqalizer for joint-equalization | |
| EP4156541A1 (en) | Control signaling for uplink frequency selective precoding | |
| CN110167166A (en) | A kind of base station, method for wireless communications and device in user equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1241640 Country of ref document: HK |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 Termination date: 20211118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |