CN102098084B - Send and receive the method and device of Sounding Reference Signal - Google Patents
Send and receive the method and device of Sounding Reference Signal Download PDFInfo
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- CN102098084B CN102098084B CN200910201154.6A CN200910201154A CN102098084B CN 102098084 B CN102098084 B CN 102098084B CN 200910201154 A CN200910201154 A CN 200910201154A CN 102098084 B CN102098084 B CN 102098084B
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Abstract
The present invention proposes the method and device sending and receiving Sounding Reference Signal.Including a kind of method being used in the terminal of mobile communications network and sending Sounding Reference Signal, described terminal includes multiple antenna, said method comprising the steps of: send Sounding Reference Signal in multiple frames by the plurality of antenna；Wherein in any frame in the plurality of frame, described terminal only sends Sounding Reference Signal by a part of antenna in the plurality of antenna.The method and device that the application of the invention proposes, in a frame, has more multiple terminals can send Sounding Reference Signal by the antenna of its configuration, thus improves the terminal quantity of Real-Time Scheduling.
Description
Technical field
The present invention relates to mobile communication system, particularly relate to send in mobile communication system and receive
The method and device of Sounding Reference Signal.
Background technology
In a wireless communication system, the Sounding Reference Signal (sounding that terminal sends
Reference signal) usually can be used for doing channel condition information estimation by base station.In transmitting procedure
In, the Sounding Reference Signal of different terminals transmission or multiple terminal antennas of same terminal
The Sounding Reference Signal sent need to be with time division multiplex, frequency division multiplexing or the side of code division multiplexing
Formula keeps orthogonal, it is therefore desirable to take more transfer resource.Before this, common terminal quantity/close
Degree is little, and the antenna that each terminal is configured is the most less, such as 1.Recently, multiple antennas
Technology is the most more and more applied, and sends the biography taken required for Sounding Reference Signal
Defeated resource is also the most more.In prior art, in same 10ms radio frames or 5ms radio frames institute
In the corresponding time cycle, each antenna that generally one terminal is configured is respectively allocated resource
Block, so that each antenna of this terminal, may be by the most allocated Resource Block, concentrates
Within the time cycle of same 10ms radio frames or 5ms radio frames, send channel to base station and visit
Survey reference signal, do the estimation of channel condition information for base station, thus this terminal is scheduling.
Wherein, Resource Block is in terminal unit and base station communication channels, by time division multiplex, frequency division multiplexing,
The smallest transmission unit that three kinds of multiplex modes of code division multiplexing together decide on.
At present, the terminal quantity in community/unit communication zone/density increases, and each terminal is joined
The number of antennas put substantially increases, and the Resource Block in order to Bearer Channel detection reference signal of channel
It is limited.So, if above-mentioned strategy of the prior art is because of terminal number and each end
The increase of the number of antennas of configuration is held to make the channel resource block of existing communication system, it is impossible to meet
All terminals send the demand of Sounding Reference Signal.That is: the channel in all communication systems provides
After source block has all been allocated, quite a few terminal is still had to be not previously allocated the Resource Block of channel
In order to send Sounding Reference Signal, this directly results in this part terminal and cannot be adjusted in real time by base station
Degree.Such as, time division duplex typical to one (TDD, Time Division Duplex) system,
The TDD cycle therein is a 5ms frame, including two sub-frame of uplink, and two descending sub frames,
One special subframe, usually, wherein: some symbol, i.e. Resource Block in sub-frame of uplink, can quilt
In order to send Sounding Reference Signal, special subframe can there be two symbols be used to send channel
Detection reference signal.It it is the communication system of K for a total number of terminals, it is assumed that a tdd frame
Cycle in, total N number of Sounding Reference Signal can be supported sending, and the configuration of each terminal
There is M antenna.Then according to of the prior art, above-mentioned Sounding Reference Signal is sent process
In the allocation strategy of Resource Block, system is supported sending in real time the end of Sounding Reference Signal
The quantity of end is: N/M.Owing to along with the development of terminal technology and renewal, the numerical value of M increases,
So, N/M value increases along with M and declines, and directly results in and is not supported in system sending channel
The terminal number of detection reference signal: K-N/M increases, and the terminal of these quantity all cannot moved
By Real-Time Scheduling in dynamic communication system.
Summary of the invention
Propose the present invention for the problem in above-mentioned background technology, its object is to make full use of logical
Resource available in the channel of communication system, makes the antenna that greater number of terminal can be configured by it
Send effective Sounding Reference Signal with continuously looping through, improve the terminal being available for Real-Time Scheduling
Number.
According to the first aspect of the invention, it is provided that a kind of being used in the terminal of mobile communications network sends out
The method of channels detection reference signal, described terminal include multiple antenna, described method include with
Lower step: send Sounding Reference Signal in multiple frames by the plurality of antenna；Wherein exist
In any frame in the plurality of frame, described terminal is only by a part of sky in the plurality of antenna
Line sends Sounding Reference Signal.
According to one embodiment of present invention, terminal is periodically to send Sounding Reference Signal
's.Each cycle includes multiple frame；In any frame in a cycle, terminal passes through its part
Antenna sends Sounding Reference Signal；Within a cycle, terminal is by each antenna the most extremely
Few transmission Sounding Reference Signal in a certain frame.
According to the second aspect of the invention, it is provided that a kind of being used in the base station of mobile communications network connects
The method receiving Sounding Reference Signal, the terminal of described mobile communications network includes multiple antenna,
Said method comprising the steps of: a) receive described terminal in multiple frames by the plurality of sky
The described Sounding Reference Signal that line sends；And b) according to described in step a receives
Sounding Reference Signal calculates channel condition information；Wherein, any frame in the plurality of frame
In, described base station is only received described terminal and is sent by a part of antenna in the plurality of antenna
Sounding Reference Signal.
According to one embodiment of present invention, terminal is periodically to send Sounding Reference Signal
, correspondingly, base station is periodically to receive Sounding Reference Signal.Each cycle includes
Multiple frames；In any frame in a cycle, base station is only received terminal and is sent out by its some antennas
Channels detection reference signal；Within a cycle, base station receives each antenna institute of terminal
The Sounding Reference Signal sent.
Fill it addition, present invention also offers the transmission corresponding to above-mentioned sending method and method of reseptance
Put and receive device:
According to the third aspect of the invention we, it is provided that a kind of sending out in the terminal of mobile communications network
Sending device, described terminal to include multiple antenna, this dispensing device includes: sending module, is used for leading to
Cross the plurality of antenna in multiple frames, send Sounding Reference Signal；Wherein at the plurality of frame
In any frame in, described sending module is only sent by a part of antenna in the plurality of antenna
Sounding Reference Signal.
According to one embodiment of present invention, the dispensing device in terminal is periodically to send channel
Detection reference signal.Each cycle includes multiple frame；In any frame in a cycle, send out
The some antennas sending device to pass through terminal sends Sounding Reference Signal；Within a cycle,
Dispensing device the most at least sends channel detection with reference to letter in a certain frame by each antenna of terminal
Number.
According to the fourth aspect of the invention, it is provided that a kind of connecing in the base station of mobile communications network
Receiving apparatus, the terminal of described mobile communications network includes multiple antenna, and this reception device includes: connect
Receive module, for receiving the described channel detection reference that described terminal is sent by the plurality of antenna
Signal；Determine module, for determining channel shape according to the described Sounding Reference Signal received
State information；Wherein, described receiver module receives described terminal by the plurality of sky in multiple frames
The described Sounding Reference Signal that line sends；In any frame in the plurality of frame, described in connect
Receive module and only receive the letter that described terminal is sent by a part of antenna in the plurality of antenna
Road detection reference signal.
According to one embodiment of present invention, the dispensing device in terminal is periodically to send channel
Detection reference signal, correspondingly, the reception device in base station periodically receives channel detection ginseng
Examine signal.Each cycle includes multiple frame；In any frame in a cycle, connecing in base station
Receiving apparatus only receives the Sounding Reference Signal that terminal is sent by its some antennas；At one
Within cycle, the device that receives in base station receives the channel detection that each antenna of terminal is sent
Reference signal.
The method and device that the application of the invention provides, terminal can be logical in multiple frames dispersedly
Cross its multiple antennas and complete to send the process of Sounding Reference Signal, such that it is able to overcome an end
End intensively sends Sounding Reference Signal in a frame because of its multiple antennas and takies too much
The problem of resource.Therefore, in the case of the available resources limited amount of communication system, at one
In frame, there is more multiple terminals can send Sounding Reference Signal by the antenna of its configuration, and then
Improve the quantity of the terminal being available for Real-Time Scheduling.
Accompanying drawing explanation
The detailed description that non-limiting example is made made with reference to the following drawings by reading,
The other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the mobile communication including terminal and base station according to an embodiment of the invention
The schematic diagram of topology of networks；
Fig. 2 show according to an embodiment of the invention between terminal and base station use
Time division duplex frame structural representation；
Fig. 3 shows the frequency used between terminal and base station according to an embodiment of the invention
Divide duplex frame structure schematic diagram；
Fig. 4 shows use in the terminal of mobile communications network according to an embodiment of the invention
In the method flow diagram sending Sounding Reference Signal；
Fig. 5 shows the terminal at mobile communications network according to an embodiment of the invention and base
The multiple frames sent between standing；
Fig. 6 shows use in the base station of mobile communications network according to an embodiment of the invention
In the method flow diagram receiving Sounding Reference Signal；
Fig. 7 shows according to an embodiment of the invention in the terminal of mobile communications network
The structured flowchart of dispensing device；
Fig. 8 shows according to an embodiment of the invention in the base station of mobile communications network
Receive the structured flowchart of device；
In the drawings, running through different diagrams, same or similar reference represents characteristic of correspondence.
Detailed description of the invention
In the case of moving velocity of terminal is not the most extra high, channel status typically will not change very
Hurry up, terminal can use the form of " sparse transmission ": will the dispersion of its Sounding Reference Signal
In multiple frames rather than concentrate in a frame.In other words, it to be passed through each by terminal
Antenna is circulated the channel detection ginseng in a transmission cycle of the Sounding Reference Signal of transmission
Examine signal to send in multiple frames, in the case of terminal low-speed motion, be dispersed in multiple frame
The Sounding Reference Signal that sent by each antenna of this terminal between, still have stronger phase
Guan Xing.Therefore, this Sounding Reference Signal can also support that the base station receiving them obtains letter
Channel state information (CSI, Channel State Information) and channel reciprocity.
In the above-mentioned transmission cycle, in the corresponding reception cycle, refer to the time that a frame is experienced, to adopting
Tie with the frame of the Long Term Evolution project (LTE, Long Term Evolution) of FDD duplex mode
Structure, generally 10ms duration, then its transmission cycle/reception cycle corresponds to 10ms.To employing
The frame structure of the Long Term Evolution of TDD duplex mode, frame is generally divided into 5ms periodic frame and 10ms week
Phase frame, then a transmission cycle/reception cycle corresponds to 5ms or 10ms the most respectively.
Fig. 1 is the signal of the topological structure of mobile communications network according to an embodiment of the invention
Figure.As it can be seen, this network includes terminal 1 and base station 3, terminal 1 and base station 3 phase intercommunication
Letter.Optionally, the terminal 1 in mobile communications network can also be passed through with base station 3
One or more relay stations are in communication with each other, and the topological structure of this kind of deformation has no effect on the present invention's
Essence.
Fig. 2 is that the time-division used between terminal and base station according to an embodiment of the invention is double
Work frame structure schematic diagram.As in figure 2 it is shown, the cycle used in the present embodiment is the up of 10ms
Frame, is made up of the field of two 5ms, and the structure within the field of each 5ms includes three seeds
Frame: descending sub frame, sub-frame of uplink and special subframe, the total quantity of three of the above subframe is 5,
The cycle of every kind of subframe is 1ms.The most each subframe, is constituted by 14 symbols: OFDM
Symbol 0, OFDM symbol 1, OFDM symbol 2 ..., OFDM symbol 13.Usually,
In 5 subframes that 1 field comprises, in addition to 1 special subframe, remaining 4 conventional subframe
The ratio of middle descending sub frame and sub-frame of uplink can be 3: 1,2: 2 or 1: 3.As it can be seen, one
Individual field includes sub-frame of uplink U2, U3, descending sub frame D0, D4, and special subframe S1.
Conventional subframe structure is made up of the time slot of two 0.5ms, comprises three special time slots in special subframe:
Descending pilot frequency time slot (DwPTS), protection interval (GP), uplink pilot time slot (UpPTS),
Have employed unified 1ms subframe lengths simultaneously.Descending pilot frequency time slot is a descending time slot, up
Pilot time slot is an ascending time slot, and any signal is not transmitted, for carrying between up-downgoing in protection interval
For protection, it is to avoid between up-downgoing, " cross interference " occurs.Wherein, the length of uplink pilot time slot
Spend more fixing, support an OFDM symbol or two kinds of length of two OFDM symbol, and protect
Protect the length of interval and descending pilot frequency time slot, be the structure of a kind of configurable uplink and downlink timeslot length.
Wherein, sub-frame of uplink and special subframe may be incorporated for carrying the channel detection reference that terminal is sent
Signal.
Fig. 3 is that the frequency division used between terminal and base station according to an embodiment of the invention is double
Work (FDD, Frequency Division Duplex) frame structure schematic diagram.The frame structure of 10ms
Comprise 10 subframes: subframe SF0 is to subframe SF9, and each subframe duration is 1ms, by two
The time slot composition of 0.5ms.
According to one embodiment of present invention, terminal is configured with 4 antennas, in the communication with base station
During, some antennas the most therein, such as 2 antennas, by base station activation and be used for sending
Sounding Reference Signal.
For simplicity's sake, in the present invention in below example, description is all skies of terminal
Line is all by base station activation and for sending the situation of Sounding Reference Signal.
Fig. 4 shows use in the terminal of mobile communications network according to an embodiment of the invention
In the method flow diagram sending Sounding Reference Signal.As shown in Figure 4, the method includes one
Step S101.Fig. 5 shows according to an embodiment of the invention at mobile communications network
The multiple frames sent between terminal and base station.Figure shows eight frame F1 of continuous print in time domain,
F2、F3、F4、F5、F6、F7、F8.It is illustrated below in conjunction with Fig. 1, Fig. 4, Fig. 5.
In the present embodiment, terminal 1 is configured with four antennas A11, A12, A13, A14.In step
In rapid S101, terminal 1 sends Sounding Reference Signal by its four antennas in multiple frames；
Wherein in any frame in multiple frames, terminal 1 is only sent out by a part of antenna in multiple antennas
Channels detection reference signal.
Such as, terminal 1 is sent in frame F1, F3 by antenna A11, A12, A13, A14
Sounding Reference Signal；Wherein in frame F1, send channel detection by antenna A11, A12
Reference signal, sends Sounding Reference Signal by antenna A13, A14 in frame F3.
The most such as, terminal 1 by antenna A11, A12, A13, A14 frame F1, F3, F5,
Sounding Reference Signal is sent in F7；Wherein in frame F1, send channel by antenna A11 to visit
Survey reference signal, in frame F3, send Sounding Reference Signal by antenna A12, at frame F5
Interior by antenna A13 transmission Sounding Reference Signal, sent by antenna A14 in frame F7
Sounding Reference Signal.
Alternatively, in each frame of Bearer Channel detection reference signal, terminal 1 all according to
Identical pattern, sends Sounding Reference Signal.Here pattern refers to that shared resource exists
One frame sometimes/particular location relation in resource frequently.
Such as, terminal 1 sends channel detection with reference to letter by antenna A11, A12 in frame F1
Number shared resource sends channel detection with reference to letter with in frame F3 by antenna A13, A14
Number shared resource has identical pattern.Here pattern is used for indicating channel detection with reference to letter
Number available resources.
Alternatively, above-mentioned pattern can set up the process of communication connection first in base station 3 with terminal 1
In be determined；Or, above-mentioned pattern can also be according to communication system working condition, in base station 3
With the communication process of terminal 1 is dynamically adjusted, determines；Or, preset above-mentioned pattern
Alternative, and set up the selected concrete pattern used when communicating first with terminal 1 in base station 3.
According to one embodiment of present invention, terminal 1 periodically according to predefined procedure with circulation side
Formula sends Sounding Reference Signal.Here predefined procedure is that terminal 1 sends channel detection reference
The order of the antenna that signal is utilized.
Such as, in a length of cycle during four frames, frame F1 to F4 is first cycle, frame F5 to F8
For second period, the rest may be inferred.One cycle includes two for the channel carrying terminal 1
The signal frame of detection reference signal, such as: frame F1, the F3 in the period 1, in second round
Frame F5, F7.Predefined procedure such as antenna A11, A12 is one group, antenna A13, A14
For another group, two groups are alternatively used for sending Sounding Reference Signal, can represent with mathematical symbol
For: { { A11, A12}, { A13, A14}}.Specifically, in the period 1, terminal 1 is led to
Cross antenna A11, A12 in frame F1, send Sounding Reference Signal, by antenna A13,
A14 sends Sounding Reference Signal in frame F3；In the second cycle, terminal 1 passes through sky
Line A11, A12 send Sounding Reference Signal in frame F5, by antenna A13, A14
Sounding Reference Signal is sent in frame F7；The rest may be inferred for situation in subsequent cycle.
The most such as, in a length of cycle during eight frames, frame F1 to F8 is the period 1, and the rest may be inferred.
One cycle includes the signal frame of four Sounding Reference Signal for carrying terminal 1, example
As: frame F2, F4, F6, the F8 in the period 1.Predefined procedure such as antenna A11, A12,
A13, A14 are respectively one group, and four groups are used for successively sending Sounding Reference Signal, use mathematics
Symbol can be expressed as: { A11, A12, A13, A14}.Specifically, in the period 1,
Terminal 1 sends Sounding Reference Signal, by antenna A12 by antenna A11 in frame F2
In frame F4, send Sounding Reference Signal, in frame F6, send channel by antenna A13
Detection reference signal, sends Sounding Reference Signal by antenna A14 in frame F8；Rear
The rest may be inferred for situation in the continuous cycle.Predefined procedure can also is that other orders, such as: A11,
A13、A14、A12}。
Above-mentioned predefined procedure can be communicate between terminal 1 with base station 3 start before or start to lead to
Order determined by the beginning of letter, it is also possible to be the most suitable after adjusting in real time according to communication scenes
Sequence.
Such as, at the beginning of terminal 1 communicates with base station 3, terminal 1 in order A11, A12,
A13, A14} send Sounding Reference Signal；In communication process, because communication scenes
Changing and produced one by terminal 1 or base station 3 and trigger signal, terminal 1 is adjusted according to this triggering signal
Whole antenna order, then { A11, A13, A14, A12} send channel detection ginseng in order
Examine signal.
The most such as, each antenna takies equivalent resource to send channel estimating reference signal, in terminal
At the beginning of 1 communicates with base station 3, terminal 1 { { A11, A12}, { A13, A14}} in order
Send Sounding Reference Signal；In communication process because the change of communication scenes and by terminal
1 or base station 3 produce one trigger signal, terminal 1 according to this triggering signal adjust antenna order,
Then { A11, A13, A14, A12} send Sounding Reference Signal in order.So,
The average every resource shared by frame of terminal 1 is minimized, and system can support more terminal.
According to one embodiment of present invention, for carrying the Sounding Reference Signal of terminal 1
Multiple frames are continuous print in time domain.
Such as, in a length of cycle during two frames, frame F1, F2 are first cycle, frame F3, F4
For second period, the rest may be inferred.Two frames in one cycle are used to carry the channel of terminal 1
Detection reference signal.In each cycle, terminal 1 according to order A11, A12}, A13,
A14}} sends Sounding Reference Signal.
The most such as, in a length of cycle during four frames, frame F1 to F4 is first cycle, and frame F5 is extremely
F8 is second period, and the rest may be inferred.Four frames in one cycle are used to carry terminal 1
Sounding Reference Signal.In each cycle, terminal 1 according to order A11, A12, A13,
A14} sends Sounding Reference Signal.
As such, it is possible to make terminal 1 utilize its multiple antennas to send the one of Sounding Reference Signal
Individual cycle time is shorter, such that it is able to the channel coherency time (coherence met in channel reciprocity
Time) requirement.
According to one embodiment of present invention, communication network also includes a terminal 1 ' and an end
End 1 " (being not shown).Terminal 1 ' is configured with two antennas A21, A22, terminal 1 "
It is configured with 3 antennas A31, A32, A33.The frame that communication system is used is time division duplex frame
Structure, as in figure 2 it is shown, include sub-frame of uplink U2, U3, and special subframe S1.
Terminal 1 ' and terminal 1 can use the OFDM symbol in sub-frame of uplink as shown in Figure 2
13, distribute to different terminals with odd number, the even intervals of subcarrier in frequency domain.OFDM symbol 13
Odd number subcarrier in frequency domain, including subcarrier 1, subcarrier 3, subcarrier 5, subcarrier 7, son
Carrier wave 9, subcarrier 11, be assigned to terminal 1, for its utilize in the order described above antenna A11,
A12, A13, A14 use when sending Sounding Reference Signal.And the idol of OFDM symbol 13
Number subcarrier in frequency domain, including subcarrier 2, subcarrier 4, subcarrier 6, subcarrier 8, subcarrier
10, subcarrier 12, are assigned to terminal 1 ' and utilize antenna A21 and A22 for it according to a definite sequence
Use when sending Sounding Reference Signal.
Terminal 1 " with base station 3 when communicating first, the OFDM of special subframe S1 can be accorded with
Front 6 subcarrier in frequency domain of number 1, i.e. subcarrier 1, subcarrier 2, subcarrier 3, subcarrier 4,
Subcarrier 5, subcarrier 6, distribute to terminal 1 ", utilize its antenna for it according to a definite sequence
A31, A32, A33 use when sending Sounding Reference Signal.
Alternatively, if in system also have other-end, then can distribute other sub-frame of uplink and/or
OFDM symbol resource in special subframe to this terminal to be used for sending Sounding Reference Signal.
Above-mentioned Resource Allocation Formula i.e. discloses three kinds of patterns, correspond respectively to terminal 1, terminal 1 ',
Terminal 1 ".Certainly, the invention is not restricted to above-mentioned pattern allocation strategy, it is possible to according to communications applications
Needs, the combination in any of available resources in above-mentioned sub-frame of uplink and/or special subframe carry
Sounding Reference Signal.Sub-frame of uplink shown in Fig. 2 and the ascending pilot frequency in special subframe
The configuration of time slot simply a kind of specific configuration mode, in actual application, sub-frame of uplink and/
Or special subframe can also have other allocation plan as required.
Alternatively, if time/after resource distributes frequently, also terminal needs to send channel detection ginseng
Examine signal, distribute also by code domain.Without loss of generality, Sounding Reference Signal can be by
Zadoff-Chu sequence is constituted, and by configuring the deviant of Zadoff-Chu sequence, reaches code division multiple
Effect, in the case, pattern is that a kind of time domain, frequency and three dimensions of code domain determine
Resource Allocation Formula.
According to one embodiment of present invention, communication system is frequency division duplex system, uses such as Fig. 3
Shown FDD frame structure.By money available in a uplink frame (including subframe SF0 to SF9)
The combination in source carries the Sounding Reference Signal of terminal 1.The time division duplex of Long Term Evolution project
The uplink frame structure of frame is the most identical with downlink frame with face layer at time slot, as it is shown on figure 3, time slot
Inner structure is also the most identical with downlink frame, and Sounding Reference Signal (SRS) is OFDM symbol.
Fig. 6 be according to an embodiment of the invention in the base station of mobile communications network for connecing
Receive the method flow diagram of Sounding Reference Signal.As shown in Figure 6, the method includes two steps
S201, S202.It is illustrated below in conjunction with Fig. 1, Fig. 5, Fig. 6.
In the present embodiment, terminal 1 is configured with four antennas A11, A12, A13, A14.
In step s 201, base station 3 receives terminal 1 in multiple frames by four antennas transmissions
Sounding Reference Signal, wherein, in any frame in multiple frames, base station 3 only receives
The Sounding Reference Signal that terminal 1 is sent by a part of antenna in four antennas.
In step S202, base station 3 is by according to the channel detection reference received in step S201
Signal determines channel condition information.
Such as, in step s 201, base station 3 receives terminal 1 and passes through antenna in frame F1
The Sounding Reference Signal that A11, A12 send, and receive terminal 1 and pass through in frame F3
The Sounding Reference Signal that antenna A13, A14 send.
The most such as, in step s 201, base station 3 receives terminal 1 and passes through antenna in frame F1
Sounding Reference Signal that A11 sends, the channel spy sent by antenna A12 in frame F3
Survey reference signal, the Sounding Reference Signal sent by antenna A13 in frame F5, at frame
The Sounding Reference Signal sent by antenna A14 in F7.
Alternatively, in each frame of Bearer Channel detection reference signal, terminal 1 all according to
Identical pattern sends Sounding Reference Signal.Correspondingly, in step s 201, base station 3
Channel detection ginseng is received by sending, according to terminal 1, the pattern that Sounding Reference Signal used
Examine signal.
Alternatively, above-mentioned pattern can set up the process of communication connection first in base station 3 with terminal 1
In be determined；Or, above-mentioned pattern can also be according to communication system working condition, in base station 3
With the communication process of terminal 1 is dynamically adjusted, determines；Or, preset above-mentioned pattern
Alternative, and set up the selected concrete pattern used when communicating first with terminal 1 in base station 3.
According to one embodiment of present invention, terminal 1 periodically according to predefined procedure with circulation side
Formula sends Sounding Reference Signal.Correspondingly, in step s 201, base station 3 is periodically
Sounding Reference Signal is received in a looping fashion according to predefined procedure.
Such as, in a length of cycle during four frames, frame F1 to F4 is first cycle, frame F5 to F8
For second period, the rest may be inferred.One cycle includes two for the channel carrying terminal 1
The signal frame of detection reference signal, such as: frame F1, the F3 in the period 1, in second round
Frame F5, F7.Predefined procedure e.g. { { A11, A12}, { A13, A14}}.Specifically,
In the period 1, base station 3 will receive the channel detection reference of self terminal 1 at frame F1, F3
Signal；In the second cycle, the channel receiving self terminal 1 at frame F5, F7 is visited by base station 3
Survey reference signal；The rest may be inferred for situation in subsequent cycle.Base station 3 also will be according to predefined procedure
Determine received Sounding Reference Signal carrys out source antenna.In step S202, base station
3 will determine according to the Sounding Reference Signal carrying out self terminal 1 received in each cycle
Channel condition information between base station 3 and terminal 1.
The most such as, in a length of cycle during eight frames, frame F1 to F8 is the period 1, and the rest may be inferred.
One cycle includes the signal frame of four Sounding Reference Signal for carrying terminal 1, example
As: frame F2, F4, F6, the F8 in the period 1.Predefined procedure e.g. A11, A12,
A13、A14}.Specifically, in the period 1, base station 3 will connect at F2, F4, F6, F8
Receive the Sounding Reference Signal of self terminal 1；The rest may be inferred for situation in subsequent cycle.Base
Stand 3 and carry out source antenna by determine received Sounding Reference Signal according to predefined procedure.
In step S202, base station 3 is by each cycle according to the letter carrying out self terminal 1 received
Road detection reference signal determines the channel condition information between base station 3 and terminal 1.
Above-mentioned predefined procedure can be communicate between terminal 1 with base station 3 start before or start to lead to
Order determined by the beginning of letter, it is also possible to be the most suitable after adjusting in real time according to communication scenes
Sequence.
Such as, at the beginning of terminal 1 communicates with base station 3, terminal 1 in order A11, A12,
A13, A14} send Sounding Reference Signal, and base station 3 receives accordingly based upon this order
Sounding Reference Signal.In communication process because the change of communication scenes and by terminal 1 or
Base station 3 produces one and triggers signal, and terminal 1 adjusts antenna order according to this triggering signal, then
{ A11, A13, A14, A12} send Sounding Reference Signal, base station 3 phase in order
Should transfer to receive Sounding Reference Signal according to this order in ground.
The most such as, each antenna takies equivalent resource to send channel estimating reference signal.In terminal
At the beginning of 1 communicates with base station 3, terminal 1 { { A11, A12}, { A13, A14}} in order
Sending Sounding Reference Signal, base station 3 receives channel detection reference accordingly based upon this order
Signal.In communication process, produced one because of the change of communication scenes by terminal 1 or base station 3
Individual triggering signal, terminal 1 adjusts antenna order according to this triggering signal, transfer in order A11,
A13, A14, A12} send Sounding Reference Signal, and correspondingly then basis should in base station 3
Order receives Sounding Reference Signal.So, the average every resource shared by frame of terminal 1 obtains
To reduce, system can support more terminal.
According to one embodiment of present invention, for carrying the Sounding Reference Signal of terminal 1
Multiple frames are continuous print in time domain, correspondingly, base station 3 receive in the multiple frame of continuous print from
The Sounding Reference Signal of terminal 1.
Such as, in a length of cycle during two frames, frame F1, F2 are first cycle, frame F3, F4
For second period, the rest may be inferred.Two frames in one cycle are used to carry the channel of terminal 1
Detection reference signal.In each cycle, terminal 1 according to order A11, A12}, A13,
A14}} sends Sounding Reference Signal in two frames in this cycle.Correspondingly, in step S201
In, base station 3 is visited receiving the channel carrying out self terminal 1 in the multiple frame of continuous print according to predefined procedure
Survey reference signal.
The most such as, in a length of cycle during four frames, frame F1 to F4 is first cycle, and frame F5 is extremely
F8 is second period, and the rest may be inferred.Four frames in one cycle are used to carry terminal 1
Sounding Reference Signal.In each cycle, terminal 1 according to order A11, A12, A13,
A14} sends Sounding Reference Signal.Correspondingly, in step s 201, base station 3 is by root
In the multiple frame of continuous print, the Sounding Reference Signal carrying out self terminal 1 is received according to predefined procedure.
As such, it is possible to make terminal 1 utilize its multiple antennas to send the one of Sounding Reference Signal
Individual cycle time is shorter, such that it is able to the channel coherency time (coherence met in channel reciprocity
Time) requirement.
In previous embodiment, system is terminal 1, terminal 1 ', terminal 1 " it is respectively allocated different money
Source is used for sending Sounding Reference Signal.According to one embodiment of present invention, correspondingly, base
Stand 3 by according to terminal 1, terminal 1 ', terminal 1 " to receive it respective for the resource each distributed
Sounding Reference Signal, and, base station 3 will be come really according to three respective antenna order of terminal
That determines received channel reference signal carrys out source antenna.
Fig. 7 shows according to an embodiment of the invention in the terminal of mobile communications network
The structured flowchart of dispensing device.As it can be seen, dispensing device 10 includes sending module 11.Send
Device 10 is typically arranged at terminal 1, terminal 1 ' or terminal 1 " in.
In this embodiment, dispensing device 10 is arranged in terminal 1, and terminal 1 is configured with many
Antenna.Sending module 11 is used for performing abovementioned steps S101, is existed by multiple antennas of terminal 1
Sounding Reference Signal is sent in multiple frames；Wherein in any frame in the plurality of frame, send out
Module 11 is sent only to send channel detection reference by a part of antenna in multiple antennas of terminal 1
Signal.
According to one embodiment of present invention, the sending module in the dispensing device 10 in terminal 1
11 is periodically to send Sounding Reference Signal.Each cycle includes multiple frame；One
In any frame in individual cycle, dispensing device sends channel detection with reference to letter by the some antennas of terminal
Number；Within a cycle, dispensing device passes through each antenna of terminal the most at least in a certain frame
Send Sounding Reference Signal.
Optionally, the sending module 11 in dispensing device 10 is used for performing in aforementioned any embodiment
Step S101.
Fig. 8 shows according to an embodiment of the invention in the base station of mobile communications network
Receive the structured flowchart of device.Include receiver module 21 as it can be seen, receive device 20 and determine
Module 22, receiver module 21 and determine that there is between module 22 data cube computation that can communicate.Receive
Device 20 is typically arranged in base station 3.
In this embodiment, the terminal 1 communicated with base station 3 is configured with multiple antenna.Receive device
20 are arranged in base station 3.Wherein, receiver module 21 is used for performing abovementioned steps S201, receives
Terminal 1 is by the described Sounding Reference Signal sent in its multiple antennas；Determine module 22
For performing abovementioned steps S202, the described Sounding Reference Signal according to receiving determines letter
Channel state information；Wherein, receiver module 21 receives terminal 1 by its multiple skies in multiple frames
The described Sounding Reference Signal that line sends；In any frame in these multiple frames, receiver module
21 only receive the channel detection ginseng that terminal 1 is sent by a part of antenna in its multiple antennas
Examine signal.
According to one embodiment of present invention, the dispensing device 10 in terminal 1 is periodically to send out
Channels detection reference signal, correspondingly, the reception mould received in device 20 in base station 3
Block 21 periodically receives Sounding Reference Signal.Each cycle includes multiple frame；One
In any frame in individual cycle, the receiver module 21 in base station 3 only receives terminal 1 by its portion
The Sounding Reference Signal that divided antenna sends；Reception mould within a cycle, in base station 3
Block 21 receives the Sounding Reference Signal that each antenna of terminal 1 is sent.
Optionally, the receiver module 21 received in device 20 is used for performing in aforementioned any embodiment
Step S201, determine that module 22 is for performing corresponding step S202.
Those skilled in the art will be understood that above-described embodiment is all illustrative and not restrictive.
The different technologies feature occurred in different embodiments can be combined, to obtain beneficial effect.
Those skilled in the art, on the basis of research accompanying drawing, specification and claims, will be understood that
And the embodiment of other changes of the embodiment disclosed in realizing.In detail in the claims, term " bag
Include " it is not precluded from other devices or step；Indefinite article " one " is not excluded for multiple；Term " the
One ", " second " is used for indicating title not for representing any specific order.Claim
In any reference be all understood not to limiting of its scope.Claim occurs
The function of some can be realized by a single hardware or software module.Some technology
Feature occurs in and is not meant in different dependent claims to be entered by these technical characteristics
Row combination is to obtain beneficial effect.
Claims (12)
1. the side being used for sending Sounding Reference Signal in the terminal of mobile communications network
Method, described terminal includes multiple antenna, said method comprising the steps of:
In multiple frames, Sounding Reference Signal is sent by the plurality of antenna；Wherein described
In any frame in multiple frames, described terminal is only sent out by a part of antenna in the plurality of antenna
Channels detection reference signal；
In each frame of the plurality of frame, described terminal sends described channel according to identical pattern
Detection reference signal.
Method the most according to claim 1, it is characterised in that: described pattern base station with
Described terminal is determined when setting up communication first.
Method the most according to any one of claim 1 to 2, it is characterised in that: described end
End, the most respectively in different frame, utilizes one of the plurality of antenna to send out in a predefined order
Send described Sounding Reference Signal.
Method the most according to claim 3, it is characterised in that: described different frame is in time domain
It it is continuous print.
Method the most according to claim 3, it is characterised in that: described frame is tdd frame knot
Structure, including sub-frame of uplink, special subframe；Described Sounding Reference Signal is positioned at described up son
In frame and/or special subframe.
6. the side being used for receiving Sounding Reference Signal in the base station of mobile communications network
Method, the terminal of described mobile communications network includes multiple antenna, said method comprising the steps of:
A. the described channel detection that described terminal is sent in multiple frames is received by the plurality of antenna
Reference signal；And
B. determine that channel status is believed according to the described Sounding Reference Signal received in step a
Breath；
Wherein, in any frame in the plurality of frame, described base station only receives described terminal and leads to
Cross the Sounding Reference Signal that a part of antenna in the plurality of antenna sends, the plurality of
In each frame in frame, described base station receives described channel detection with reference to letter according to identical pattern
Number.
Method the most according to claim 6, described pattern is in base station with described terminal first
It is determined when setting up communication.
8. according to the method according to any one of claim 6 to 7, it is characterised in that:
In described step a, in different frame, receive described terminal the most respectively with predetermined
Order utilize the described Sounding Reference Signal that one of the plurality of antenna sends.
Method the most according to claim 8, it is characterised in that: described different frame is in time domain
It it is continuous print.
Method the most according to claim 8, it is characterised in that: described frame is tdd frame knot
Structure, including sub-frame of uplink, special subframe；Described Sounding Reference Signal is positioned at described up son
In frame and/or special subframe.
11. 1 kinds of dispensing devices in the terminal of mobile communications network, described terminal includes multiple
Antenna, this dispensing device includes:
Sending module, for sending channel detection with reference to letter by the plurality of antenna in multiple frames
Number；Wherein in any frame in the plurality of frame, described sending module is only by the plurality of sky
A part of antenna in line sends Sounding Reference Signal, in each frame of the plurality of frame,
Described sending module sends described Sounding Reference Signal according to identical pattern.
12. 1 kinds of reception devices in the base station of mobile communications network, described mobile communications network
Terminal include multiple antenna, this reception device includes:
Receiver module, the channel detection sent by the plurality of antenna for receiving described terminal is joined
Examine signal；
Determine module, for determining channel status according to the described Sounding Reference Signal received
Information；
Wherein, described receiver module is received described terminal in multiple frames and is sent out by the plurality of antenna
The described Sounding Reference Signal sent；In any frame in the plurality of frame, described reception mould
Block only receives the channel spy that described terminal is sent by a part of antenna in the plurality of antenna
Surveying reference signal, in each frame in the plurality of frame, described receiver module is according to identical figure
Case receives described Sounding Reference Signal.
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| CN102355293B (en) * | 2011-08-15 | 2017-02-08 | 中兴通讯股份有限公司 | Method and device for sending measurement reference signal |
| US9893772B2 (en) | 2012-12-04 | 2018-02-13 | Lg Elctronics Inc. | Method for changing pattern of reference signals according to coherence time variation in wireless communication system and apparatus therefor |
| CN104716998A (en) * | 2013-12-16 | 2015-06-17 | 中兴通讯股份有限公司 | Reference signal transmitting method and device |
| WO2017008703A1 (en) * | 2015-07-10 | 2017-01-19 | 华为技术有限公司 | Channel measurement method and sta |
| CN106559277A (en) * | 2015-09-25 | 2017-04-05 | 中兴通讯股份有限公司 | The sending method and device of detection reference signal, signaling configuration method and device |
| CN106685621A (en) * | 2015-11-06 | 2017-05-17 | 中兴通讯股份有限公司 | SRS processing method and device |
| CN105656539B (en) * | 2015-12-31 | 2019-04-05 | 华为技术有限公司 | SRS sending control method and base station |
| CN106998248B (en) * | 2016-01-26 | 2020-09-15 | 中兴通讯股份有限公司 | Signal sending method and user equipment |
| CN108234097B (en) * | 2016-12-21 | 2020-05-26 | 大唐移动通信设备有限公司 | Method and device for decomposing measurement signals of two-antenna terminal |
| CN109495193A (en) * | 2017-09-12 | 2019-03-19 | 成都华为技术有限公司 | Method for transmitting signals, relevant apparatus and system |
| CN110034803B (en) * | 2018-01-12 | 2021-06-04 | 华为技术有限公司 | Channel state information feedback method and device in wireless communication system |
| CN111224762B (en) * | 2018-11-26 | 2021-06-11 | 大唐移动通信设备有限公司 | Sounding reference signal resource allocation method and device |
| CN110440841A (en) * | 2019-07-25 | 2019-11-12 | 武汉钜风科技有限公司 | A kind of Brillouin optical time domain analysis instrument |
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| CN101540631A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Multi-antenna sending method and device for measuring reference signal |
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| US9444650B2 (en) * | 2006-04-27 | 2016-09-13 | Texas Instruments Incorporated | Methods and apparatus to allocate reference signals in wireless communication systems |
| CN101594633B (en) * | 2009-06-19 | 2015-06-10 | 中兴通讯股份有限公司 | Base station, terminal, system and method for transmitting sounding reference signals by multiple antennae |
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| CN101154975A (en) * | 2006-09-30 | 2008-04-02 | 大唐移动通信设备有限公司 | Method and switching control device for obtaining channel condition information in TDD system |
| CN101540631A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Multi-antenna sending method and device for measuring reference signal |
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