CN102932919B - The resource allocation method and device of uplink sounding reference signal - Google Patents
The resource allocation method and device of uplink sounding reference signal Download PDFInfo
- Publication number
- CN102932919B CN102932919B CN201110228307.3A CN201110228307A CN102932919B CN 102932919 B CN102932919 B CN 102932919B CN 201110228307 A CN201110228307 A CN 201110228307A CN 102932919 B CN102932919 B CN 102932919B
- Authority
- CN
- China
- Prior art keywords
- terminal
- entry
- access network
- network elements
- srs resource
- 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.)
- Active
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
-
- 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
- H04L5/0078—Timing of allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of resource allocation method and device of uplink sounding reference signal, this method includes：Access network elements determine the data transmission period of the business datum of terminal；Access network elements, according to data transmission period, are the entry-into-force time of terminal collocating uplink link detection reference signal SRS resource and SRS resource, and wherein SRS resource and entry-into-force time are only allowed to send SRS using SRS resource in the entry-into-force time for instruction terminal；The SRS resource of configuration and entry-into-force time are sent to terminal by access network elements.One aspect of the present invention can ensure that terminal sends SRS in the entry-into-force time using SRS resource, extra signaling consumption is not increased, on the other hand it can ensure that time of the SRS resource beyond the entry-into-force time is used by other terminals, so as to improve the service efficiency of SRS resource.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of resource distribution side of uplink sounding reference signal
Method and device.
Background technology
In broadband wireless communication system, in order to which complementary access networks network element carries out uplink channel estimation and measurement, use
Family equipment (User Equipment, referred to as UE) needs to send uplink reference signals.Uplink reference signals are usual
Orthogonal code sequence is used to reduce interfering for the uplink reference signals between different UE.Access network elements pass through measurement
Different UE uplink reference signals, to obtain different UE uplink channel quality, come to perform UE frequency choosing accordingly
Selecting property wireless resource scheduling.In addition, uplink reference signals can also aid in uplink synchronisation, for example, logical in third generation movement
Believe in Long Term Evolution (Long Term Evolution, referred to as LTE) system, access network elements are except utilizing up-link ginseng
Examine signal to perform beyond frequency selectivity wireless resource scheduling UE, also detect UE by measuring uplink reference signals
The skew of up-link wireless frame whether go beyond the limit, with the time offset of the up transmission for timely correcting UE (" timely " refer to,
Before UE upstream synchronous timing device time-out, access network elements will at least receive the uplink reference letter that a UE is sent
Number, come the skew of the up-link wireless frame that measures UE), to realize UE uplink synchronisation.
In the prior art, UE is establishing wireless heterogeneous networks (Radio Resource with access network elements
Control, abbreviation RRC) connection after, access network elements can be UE collocating uplink link reference signals transmission parameter, with define
The interface-free resources (frequency domain resource, time-domain resource or code domain resource) that uplink reference signals take needed for sending, with LTE system
Exemplified by, the uplink reference signals of LTE system are divided into 2 kinds, and one kind is referred to as demodulated reference signal (DeModulation
Reference Signal, referred to as DM RS), it is another to be referred to as detection reference signal (Sounding Reference
Signal, referred to as SRS).
DM RS are generally sent with uplink business data together, i.e., only when UE has upstream data transmission, DM RS with one of
Rise and send, it, which is acted on, is mainly used for aiding in the coherent demodulation in uplink channel estimation.
SRS transmission is not associated with upstream data, and SRS sending method includes：Cycle SRS and aperiodic SRS (or
SRS singles are sent).Wherein cycle SRS refers to that UE sends the cycle according to the SRS of network side high level configuration, periodically sends
SRS, it is therefore an objective to ensure that base station can obtain continuous uplink channel estimation information；It is to cycle SRS that aperiodic SRS, which is sent,
The supplement of transmission, the accuracy estimated for enhanced uplink is generally sent by base station by control signaling short notice UE
Aperiodic SRS.For example：In LTE system, the node B (Evolved NodeB, referred to as eNB) of evolution is by physical down chain
" aperiodic SRS refers to for transmission in road control channel (Physical Downlink Control Channel, referred to as PDCCH)
Show " once aperiodic SRS is sent to trigger UE, or trigger UE by indicating " transmission of SRS singles " in RRC dedicated signalings
Send a SRS.
SRS configuration parameter includes：The bandwidth of uplink reference signals occupancy, the transmission week of uplink reference signals
Phase, send time offset, the cyclic shift amount of uplink reference signals, the uplink reference of uplink reference signals are believed
User sends uplink reference signals hair in the parameters such as number initial frequency-domain sent biasing, these parameter definitions LTE system
Send required Radio Resource (frequency domain resource, time-domain resource and code domain resource).
Fig. 1 is the schematic diagram of the configuration SRS resource according to correlation technique, as shown in figure 1, in LTE system, it is assumed that user is whole
Hold as UE1, the transmission cycle of the uplink reference signals configured is 5 subframes, different frequencies of the UE1 in each transmission cycle
Domain position sends uplink reference signals, and the uplink channel that UE1 whole bandwidth is completed with assistant base station is measured, and is letter
Just there is no citing UE1 code domain resource for the sake of, in Fig. 1.Actually in LTE system, the SRS signal sequence that UE is sent is to pass through
Cyclic shift is carried out to a root sequence in time domain to obtain.Carrying out different cyclic shifts to same root sequence can just obtain
It is mutually orthogonal between different SRS sequences, and these obtained SRS sequences, it is possible to distribute to these SRS sequences not
Same UE is used, to realize the CDMA between UE.In LTE, 8 cyclic shifts of SRS sequence definitions are referred to 3bit signalings
Show, be respectively：0,1,2,3,4,5,6,7.That is, under same running time-frequency resource, the UE in cell has 8 available code moneys
Source, eNB can at most configure 8 UE on identical running time-frequency resource while sending SRS.
And in the prior art, UE in business duration, that is to say RRC connected states keep during, all can continue according to
The resource distributions of the uplink reference signals of above-mentioned configuration sends uplink reference signals.Even if UE does not send SRS (examples
Such as use discontinuous reception technique), the SRS resource configuration shared by it will not also discharge, so as to cause the use of SRS resource to be imitated
Rate is not high.Unless network side sends explicit dedicated signaling to UE, it is desirable to discharge the SRS resource configuration of the UE, but as the UE
When having data arrival, network side need to resend explicit dedicated signaling to the UE again, be its heavy resource distribution with SRS, such as
This has led to the delay of unnecessary additional signaling overhead and data dispatch, so as to reduce system spectral efficiency and use repeatedly
Experience at family.
The content of the invention
SRS resource is taken always for terminal in correlation technique to cause the problem of service efficiency of SRS resource is not high
And the present invention is proposed, therefore, it is a primary object of the present invention to provide a kind of resource distribution of uplink sounding reference signal
Method and device, to solve the above problems.
To achieve these goals, according to an aspect of the invention, there is provided a kind of uplink sounding reference signal
Resource allocation method.
According to the resource allocation method of the uplink sounding reference signal of the present invention, including：Access network elements are determined eventually
The data transmission period of the business datum at end；Access network elements, according to data transmission period, are terminal collocating uplink link detection
The entry-into-force time of reference signal SRS resource and SRS resource, wherein SRS resource and entry-into-force time are only permitted for instruction terminal
Perhaps SRS is sent using SRS resource in the entry-into-force time；The SRS resource of configuration and entry-into-force time are sent to terminal by access network elements.
Preferably, access network elements determine that the data transmission period of the business datum of terminal includes：Access network elements according to
The historical transmission times of business datum determine data transmission period.
Preferably, access network elements determine that the data transmission period of the business datum of terminal includes：Access network elements are received
The transmission time distribution characteristics of the business datum of arrival self terminal；Access network elements determine data according to transmission time distribution characteristics
Transmission time.
Preferably, access network elements determine that the data transmission period of the business datum of terminal includes：Access network elements are received
To the transmission time distribution characteristics of the business datum from core net；Access network elements determine number according to transmission time distribution characteristics
According to transmission time.
Preferably, the SRS resource of configuration and entry-into-force time are sent to terminal and included by access network elements：Access network elements will
The SRS resource of configuration and entry-into-force time are sent to terminal by radio resource control RRC dedicated signaling.
Preferably, access network elements, according to data transmission period, are terminal configuration SRS resource and when coming into force of SRS resource
Between include：Access network elements, according to data transmission period, are terminal configuration cycle SRS resource and when coming into force of cycle SRS resource
Between, and configure the entry-into-force time of aperiodic SRS resource and aperiodic SRS resource.
Preferably, access network elements, according to data transmission period, are terminal configuration SRS resource and when coming into force of SRS resource
Between include：Access network elements are according to the life of data transmission period, only terminal configuration cycle SRS resource and cycle SRS resource
The effect time.
Preferably, in access network elements according to data transmission period, only terminal configuration cycle SRS resource and cycle
After the entry-into-force time of SRS resource, the above method also includes：When terminal was in outside the entry-into-force time of cycle SRS resource, connect
Network element sends control signaling to terminal, and wherein control signaling is used for the aperiodic SRS of instruction terminal transmission.
Preferably, the SRS resource of configuration and entry-into-force time are sent to after terminal in access network elements, the above method is also
Including：When terminal was in outside the entry-into-force time, access network elements determine that terminal has upstream data to be sent；Access network net
Member gives terminal distribution ascending resource；Access network elements carry out the upstream data of self terminal using ascending resource reception.
Preferably, before access network elements are to terminal uplink resource, the above method also includes：Access network elements determine with
Uplink synchronous is not present between terminal；Uplink synchronous is re-established between access network elements and terminal.
Preferably, SRS resource includes at least one of：It is upper that uplink radio resources that SRS is used, SRS are used
The initial frequency that the time domain biasing for the uplink radio resources that the usage cycles of uplink radio resource, SRS are used, SRS are sent
Domain is biased.
Preferably, the entry-into-force time includes at least one of：In cycle of coming into force of entry-into-force time, the cycle of coming into force when coming into force
Between length, the biasing of the initial time for the entry-into-force time come into force in the cycle.
To achieve these goals, according to another aspect of the present invention there is provided a kind of uplink sounding with reference to letter
Number device for allocating resources.
According to the device for allocating resources of the uplink sounding reference signal of the present invention, including：Determining module, for determining
The data transmission period of the business datum of terminal；Configuration module, for according to data transmission period, being terminal configuration SRS resource
With the entry-into-force time of SRS resource, wherein SRS resource and entry-into-force time is only allowed to use in the entry-into-force time for instruction terminal
SRS resource sends SRS；Sending module, for the SRS resource of configuration and entry-into-force time to be sent into terminal.
Preferably, determining module includes：Determination sub-module, data are determined for the historical transmission times according to business datum
Transmission time.
The present invention can be with by configuring the SRS resource matched with the data transmission period of terminal and entry-into-force time, on the one hand
Ensure that terminal sends SRS in the entry-into-force time using SRS resource, do not increase extra signaling consumption, on the other hand can ensure this
Time of the SRS resource beyond the entry-into-force time is used by other terminals, so as to improve the service efficiency of SRS resource.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the configuration SRS resource schematic diagram according to correlation technique；
Fig. 2 is the flow chart of the resource allocation method of uplink sounding reference signal according to embodiments of the present invention；
Fig. 3 is the schematic diagram of configuration SRS resource according to embodiments of the present invention；
Fig. 4 is the schematic diagram of the matching result of entry-into-force time according to embodiments of the present invention and user service data；
Fig. 5 is the structured flowchart of the device for allocating resources of uplink sounding reference signal according to embodiments of the present invention；
Fig. 6 is the structural frames of the device for allocating resources of uplink sounding reference signal according to the preferred embodiment of the invention
Figure.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The invention provides a kind of resource allocation method of uplink sounding reference signal.Fig. 2 is according to of the invention real
Apply the flow chart of the resource allocation method of the uplink sounding reference signal of example, including steps S202 is to step
S206。
Step S202, access network elements determine the data transmission period of the business datum of terminal.
Step S204, access network elements, according to data transmission period, are terminal collocating uplink link detection reference signal SRS
The entry-into-force time of resource and SRS resource, wherein SRS resource and entry-into-force time are only allowed in the entry-into-force time for instruction terminal
SRS is sent using SRS resource.
The SRS resource of configuration and entry-into-force time are sent to terminal by step S206, access network elements.
In correlation technique, terminal takes SRS resource always, so as to cause the service efficiency of SRS resource not high.It is of the invention real
Apply in example, by configuring SRS resource and its entry-into-force time, on the one hand can ensure that terminal is sent out in the entry-into-force time using SRS resource
SRS is sent, does not increase extra signaling consumption, time of the SRS resource beyond the entry-into-force time on the other hand can be ensured by it
Its terminal is used, so as to improve the service efficiency of SRS resource.
In addition, in order to ensure that the terminal can be carried out timely and effectively when needing to carry out data transmission, the present invention is fully
The application for considering present terminal is actual, and proceeds from the reality, according to the data transmission period of terminal traffic data to SRS resource
And its entry-into-force time is configured, it is specifically described below.
At present, the business datum of terminal is concentrated mainly at line service (such as microblogging, mobile phone QQ, FaceBook).This
Usually require that terminal keeps presence for a long time in line service a bit, i.e. this kind of in line service even if user does not transmit information
Also keep-alive packet (it sends the cycle typically up to tens of seconds to several minutes) can be periodically sent, to keep terminal and industry
Application layer link between business provider server.Therefore, exactly this application layer behavior will make it that terminal and network side are long
The holding RRC connections of time, so that the SRS resource that network side is allocated to terminal is always maintained at and can not discharged.
In the present invention, according to the transmission cycle of above-mentioned keep-alive packet, it is predicted that the data transmission period of terminal, Ran Hougen
SRS resource and its entry-into-force time are configured according to data transmission period.So, when follow-up keep-alive packet needs to send, SRS moneys
Source is exactly come into force in its entry-into-force time, thereby may be ensured that the keep-alive packet is timely and effectively transmitted.
For the data transmission period of the business datum that determines terminal, present invention also offers three kinds of possible realization sides
Formula, is described in detail with reference to example 1 to example 3.
Example 1：Access network elements determine data transmission period according to the historical transmission times of business datum.Because history is passed
The defeated time can most reflect the Time-distribution of business data transmission, therefore, in this preferred embodiment, directly according to business datum
Historical transmission times determine data transmission period, its determination program is easy, determine reliable results.
Example 2：Access network elements receive the transmission time distribution characteristics for the business datum for carrying out self terminal；Access network elements
Data transmission period is determined according to transmission time distribution characteristics.Because terminal can obtain the biography of business datum accurately and in time
Defeated Time-distribution, therefore access network elements determine data transmission period according to the transmission time distribution characteristics for carrying out self terminal,
It can ensure that the data transmission period more presses close to the situation of present terminal, and then business datum can be ensured in access network elements
High efficiency of transmission between terminal.
Example 3：Access network elements receive the transmission time distribution characteristics of the business datum from core net；Access network net
Member determines data transmission period according to transmission time distribution characteristics.When can store the transmission of multiple business datums due to core net
Between distribution characteristics, therefore, access network elements determine data transmission period according to the transmission time distribution characteristics from core net, can
To ensure to initiate the initial stage (when i.e. in the absence of historical transmission times or conventional transmission time distribution characteristics) of business just in user
Data transmission period is determined, and then high efficiency of transmission of the business datum between access network elements and terminal can be ensured.
It should be noted that the mode of above-mentioned determination data transmission period is only several preferred implementations, it is actual
In, any other implementation that can determine data transmission period should include protection scope of the present invention.
Preferably, the SRS resource of configuration and entry-into-force time are sent to terminal and included by access network elements：Access network elements will
The SRS resource of configuration and entry-into-force time are sent to terminal by radio resource control RRC dedicated signaling.
Preferably, access network elements, according to data transmission period, are terminal configuration SRS resource and when coming into force of SRS resource
Between include：Access network elements, according to data transmission period, are terminal configuration cycle SRS resource and when coming into force of cycle SRS resource
Between, and configure the entry-into-force time of aperiodic SRS resource and aperiodic SRS resource.
Preferably, access network elements, according to data transmission period, are terminal configuration SRS resource and when coming into force of SRS resource
Between include：Access network elements are according to the life of data transmission period, only terminal configuration cycle SRS resource and cycle SRS resource
The effect time.
Preferably, in access network elements according to data transmission period, only terminal configuration cycle SRS resource and cycle
After the entry-into-force time of SRS resource, the above method also includes：When terminal was in outside the entry-into-force time of cycle SRS resource, connect
Network element sends control signaling to terminal, and wherein control signaling is used for the aperiodic SRS of instruction terminal transmission.
In this preferred embodiment, access network elements are only configured with cycle SRS resource and its entry-into-force time, and do not configure non-
Cycle SRS resource and its entry-into-force time, its both can with instruction terminal within the entry-into-force time usage cycles SRS resource send the cycle
SRS sends aperiodic SRS using aperiodic SRS resource, also can indicate that terminal outside the entry-into-force time using aperiodic
SRS resource sends aperiodic SRS.And then, because terminal can send aperiodic SRS outside the entry-into-force time, therefore, terminal can
The uplink synchronous of terminal is maintained with the transmission by the aperiodic SRS.
Preferably, the SRS resource of configuration and entry-into-force time are sent to after terminal in access network elements, the above method is also
Including：When terminal was in outside the entry-into-force time, access network elements determine that terminal has upstream data to be sent；Access network net
Member gives terminal distribution ascending resource；Access network elements carry out the upstream data of self terminal using ascending resource reception.
Preferably, before access network elements are to terminal uplink resource, the above method also includes：Access network elements determine with
Uplink synchronous is not present between terminal；Uplink synchronous is re-established between access network elements and terminal.
Preferably, SRS resource includes at least one of：It is upper that uplink radio resources that SRS is used, SRS are used
The initial frequency that the time domain biasing for the uplink radio resources that the usage cycles of uplink radio resource, SRS are used, SRS are sent
Domain is biased.
Preferably, the entry-into-force time includes at least one of：In cycle of coming into force of entry-into-force time, the cycle of coming into force when coming into force
Between length, the biasing of the initial time for the entry-into-force time come into force in the cycle.
The implementation process of the present invention is described in detail below in conjunction with specific embodiment.
The present embodiment scene is LTE system, and core network element is mobility management entity (Mobility Management
Entity, referred to as MME), access network elements are eNB, and the log-on message of terminal, which is stored in, is locally registered server (Home
Subscriber Server, referred to as HSS).
Before the present embodiment is introduced, the part concept that need to first be used to the present embodiment (including the present invention's is preferred suitable
With situation and in the data production of line service) it is described.
Different types of service, the rule for the time interval distribution that its packet is reached is different, is arrived according to packet
Whether have periodically up to time interval, be broadly divided into periodic and aperiodic two class.If business datum is most
The arrival time of number packet has periodically, then using the method for the present invention, it is possible to achieve preferable effect, if business number
According to most of packets arrival time be it is random, without it is obvious periodically, then advantages of the present invention will be difficult to fully,
Effectively play.Therefore, when access network elements judge that the business datum of terminal does not have obvious periodicity, it may not be necessary to be the use
Family configures the entry-into-force time of SRS resource, that is, allows the cycle SRS resource of the terminal persistently to come into force.
At present, the data produced in line service are roughly divided into three following classes：(1), keep-alive message：In order to ensure software
Link between client and server is, it is necessary to which the client software in terminal periodically sends keep-alive message to server
(Keep alive message), its cycle is generally at 30 seconds to a few minutes；(2), state updates：Including user itself or good friend
Reach the standard grade, the prompting of the state change such as stealthy, content update, this kind of data are non-periodic transfers, and its time interval is generally at several points
Clock or so；(3), the data that user independently sends：The transmission interval of this kind of data generally depends on the use habit of user, busy
When, its data sends and is spaced in tens of seconds to more than ten minutes；In idle, its data sends interval may be up to dozens of minutes to one
More than hour.
Below so that current hot topic is in line service as an example, the implementation process to the present invention is described in detail.
Step A, in order to obtain above-mentioned data data transmission time intervals feature (i.e. data transfer whether have the cycle
Property, cycle size, mean data transfer time interval, the information such as the mathematical distribution of data transmission time intervals), eNB can lead to
Cross three kinds of following modes：
(1), (for example passed through by RRC dedicated signalings by terminal
RRCConnectionReconfigurationComplete message or RRCConnectionSetupComplete message, can
With reference to 3Gpp agreement TS36.331) it is sent to eNB；
(2), obtained by eNB is voluntarily counted to the Transmission Time Interval feature of the business datum of terminal；
(3), the data transmission time intervals feature of miscellaneous service is storable in core network element (such as in HSS), when
When user initiates new business, the corresponding data transmission time intervals feature of new business is sent to the service of user by core net
eNB。
Step B, eNB can be according to above-mentioned data transmission time intervals features, to determine how to be provided for terminal configuration SRS
Source, and whether to the SRS resource configuration take-effective time.
In order to clearly describe above-mentioned configuration process, present invention also offers an instantiation.
Assuming that certain online chatting software that user uses, eNB obtains its data transmission time intervals and is characterized as：Keep-alive message
The transmission cycle is 30s；The average transmission time of state updating information was at intervals of 3 minutes；User voluntarily transmits the average biography of data
Defeated time interval is 15 minutes.As can be seen here, in the data that the user produces, most of is periodic keep-alive message, therefore
It is adapted to the mechanism using the present invention, is the user configuring SRS resource and its entry-into-force time.
First, eNB can determine the cycle of the entry-into-force time as follows in this example：
The SRS resource of user is configured (referring to 3Gpp agreement TS36.331)：
Wherein, srs-Bandwidth represents the frequency domain bandwidth that UE1 SRS uses (bw0, bw1, bw2, bw3 is represented respectively
4 kinds of SRS band width configurations under different system bandwidth, its detail is unrelated referring to 3gpp agreement TS36.211, and the present invention, because
This is not described here in detail)；
(circular is referring to 3gpp for calculating the frequency domain position that UE1 SRS is used by freqDomainPosition
Agreement TS36.211, its detail and the present invention are unrelated, therefore are not described here in detail)；
Srs-ConfigIndex can be mapped as SRS the transmission cycle and time domain biasing (specific mapping table is referring to 3gpp agreements
TS36.211, its detail and the present invention are unrelated, therefore are not described here in detail)；
CyclicShift represents UE1 SRS sequence displacement；
In addition to the parameters discussed above, existing protocol also defines other specification for SRS, for simplicity, not another here
One is described in detail, the parameter of every (SRS frequency domain, time domain, code domain resource) related to SRS resource configuration, according to the side of the present invention
Method, need to be limited by the entry-into-force time of the SRS.
Therefore, eNB can be according to the average arrival time of the keep-alive message of the user and other two classes data in this example
The greatest common divisor at interval, the cycle for configuring the entry-into-force time of the SRS resource of user is 30 seconds, can so be made to greatest extent
On other aperiodic data of two classes also match with the entry-into-force time.
Secondly as the packet that online chatting class business is produced is generally smaller (it transmits time-consuming be generally less than 1 second), because
This, eNB can configure duration=1 second of coming into force of SRS resource in this example.
Again, in this example eNB can combine following configuration take-effective durations of formula 1 initial time it is inclined in each cycle
Put.
Formula 1：
In above formula, nf represents current system frame number (each system frame length is 10ms), and ns represents current time slots
Sequence number (the span of (slot, each slot length is 0.5ms) in radio frames (identical with system frame length, to be 10ms)
For 0~19), NSRS_avail_offset represents each cycle startup offset moment of entry-into-force time, according to subframe (subframe,
Length is 1ms) configured for unit, span be [0, (SRS_avail_period-SRS_avail_length) ×
1000) (wherein SRS_avail_length represents the length of entry-into-force time), SRS_avail_period represents that SRS resource is configured
Entry-into-force time cycle because what the cycle of entry-into-force time and the length of entry-into-force time were defined according to the second, therefore upper
State and 1000 are multiplied by formula are converted into ms.
Network side and terminal arrange above-mentioned formula in advance, and eNB need to only define NSRS_avail_offset, and terminal can
The each cycle startup offset moment of the entry-into-force time is calculated according to NSRS_avail_offset.
To sum up, according to the above-mentioned eNB SRS resource configurations configured and its entry-into-force time, the SRS resource that user can use is such as
Shown in Fig. 3.In Fig. 3, the resource in the entry-into-force time is used in enlarged drawing (i.e. uppermost subgraph), and vertical line square frame represents eNB points
The SRS resource configuration of provisioned user, white box represents the SRS resource configuration for distributing to other UE, it can be seen that only exist
The entry-into-force time of the SRS resource configuration for the user that eNB is provided comes into force in duration, and user can just use the SRS moneys that eNB is distributed
Source is configured；When being not at coming into force in duration, the SRS resource configuration of user can be distributed to other UE by eNB and be used.Meanwhile,
Because eNB to the entry-into-force time of the SRS resource of user configuring is matched with the data transmission characteristics of user, its entry-into-force time
Cycle and user three kinds of data average transmission interval greatest common divisor interval it is equal (i.e. 30 seconds), and due to generally existing
The data volume of line chat service is smaller, therefore the duration that comes into force of 1 second is enough to complete the transmission of a packet, therefore, above-mentioned to match somebody with somebody
The entry-into-force time for the SRS resource put can cause the SRS resource of system to be fully utilized, and UE scheduling will not be prolonged
Bring and significantly affect late.
Fig. 4 is the schematic diagram of the matching result of entry-into-force time according to embodiments of the present invention and user service data, such as Fig. 4
Shown, the entry-into-force time of periodic keep-alive message data and SRS resource configuration matches completely；Aperiodic state is updated the data
It is most of to be given birth to although the entry-into-force time that the data independently sent with user are not configured with SRS resource matches completely
The effect time covers, and entry-into-force time unmatched probability is smaller.
Above-mentioned SRS resource is being determined and its after the entry-into-force time, eNB transmits these information to user, it can pass through
RRC dedicated signalings are sent, and details has been defined in existing LTE protocol, is not described in detail；
In addition, above-mentioned SRS resource is being determined and its after the entry-into-force time, the transmission of the entry-into-force time of SRS resource can be with
By in RRCConnectionReconfiguration or RRCConnectionReestablishment or
Increase new cell (Information Element, referred to as IE) carrying SRS resource in RRCConnectionSetup message
Entry-into-force time and transmission, or by existing SRS configure IE in directly increase SRS resource configure entry-into-force time ginseng
Number.
In order to clearly describe above-mentioned transmission process, present invention also offers an instantiation.
Define a new IE：
Meaning of parameters in above-mentioned IE is as follows：
Release represents the switch of the entry-into-force time configured to SRS resource, if release puts 1, then it represents that SRS is provided
The entry-into-force time of source configuration is cancelled (represent UE SRS resource configuration can persistently use, and not limited by the entry-into-force time).
Srs-Resource-Valid-Period represents the cycle of the entry-into-force time of SRS resource configuration, and span is 0
~2047 seconds；
Srs-Resource-Valid-TimeLength represents the entry-into-force time come into force in the cycle of SRS resource configuration, takes
It is 0~2047 second to be worth scope；
Srs-Resource-Valid-Offset represents each cycle startup offset moment of entry-into-force time, and span is 0
~2047000 milliseconds；
Another example：Above-mentioned parameter can also be directly added into existing IE：SoundingRS-UL-
ConfigDedicated, either SRS-ConfigAp-r10 or SoundingRS-UL-ConfigDedicated-v10x0
In.
After user receives above- mentioned information, if wherein there is the entry-into-force time of configuration and the SRS resource configuration of SRS resource,
Then the terminal only can be within the entry-into-force time that the SRS resource is configured according to SRS resource configuration transmission SRS；Terminal is received
If to described information in only include the configuration of SRS resource, the terminal uses the SRS resource always.
It should be noted that can be in such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Performed in computer system, and, although logical order is shown in flow charts, but in some cases, can be with not
The order being same as herein performs shown or described step.
The embodiments of the invention provide a kind of device for allocating resources of uplink sounding reference signal, the up-link is visited
The device for allocating resources for surveying reference signal can be used for the resource allocation method for realizing above-mentioned uplink sounding reference signal.Figure
5 be the structured flowchart of the device for allocating resources of uplink sounding reference signal according to embodiments of the present invention, as shown in figure 5,
Including determining module 52, configuration module 54 and sending module 56.Its structure is described in detail below.
Determining module 52, the data transmission period of the business datum of terminal is determined for access network elements；Configuration module 54,
Determining module 52 is connected to, the data transmission period determined for access network elements according to determining module 52 is in terminal configuration
The entry-into-force time of downlink probe reference signal SRS resource and SRS resource, wherein SRS resource and entry-into-force time are used to indicate end
End is only allowed to send SRS using SRS resource in the entry-into-force time；Sending module 56, is connected to configuration module 54, for accessing
The SRS resource and entry-into-force time that network element configures configuration module 54 are sent to terminal.
Fig. 6 is the structural frames of the device for allocating resources of uplink sounding reference signal according to the preferred embodiment of the invention
Figure, as shown in fig. 6, determining module 52 includes determination sub-module 522, number is determined for the historical transmission times according to business datum
According to transmission time.
It should be noted that the device for allocating resources correspondence of the uplink sounding reference signal described in device embodiment
In above-mentioned embodiment of the method, its concrete implementation process had carried out detailed description in embodiment of the method, herein no longer
Repeat.
In summary, there is provided a kind of resource of uplink sounding reference signal according to the abovementioned embodiments of the present invention
Collocation method and device.On the one hand the present invention can ensure that terminal makes in the entry-into-force time by configuring SRS moneys and its entry-into-force time
SRS is sent with SRS resource, does not increase extra signaling consumption, on the other hand can ensure the SRS resource beyond the entry-into-force time
Time used by other terminals, so as to improve the service efficiency of SRS resource.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored
Performed in the storage device by computing device, either they are fabricated to respectively each integrated circuit modules or by they
In multiple modules or step single integrated circuit module is fabricated to realize.So, the present invention is not restricted to any specific
Hardware and software is combined.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (15)
1. a kind of resource allocation method of uplink sounding reference signal, it is characterised in that including：
Access network elements determine the data transmission period of the business datum of terminal；
The access network elements, according to the data transmission period, are the terminal collocating uplink link detection reference signal SRS
The entry-into-force time of resource and the SRS resource, wherein the SRS resource and the entry-into-force time are for indicating the terminal only
It is allowed to send SRS using the SRS resource in the entry-into-force time；
The SRS resource of configuration and the entry-into-force time are sent to the terminal by the access network elements.
2. according to the method described in claim 1, it is characterised in that access network elements determine that the data of the business datum of terminal are passed
The defeated time includes：The access network elements determine the data transmission period according to the historical transmission times of the business datum.
3. according to the method described in claim 1, it is characterised in that access network elements determine that the data of the business datum of terminal are passed
The defeated time includes：
The access network elements receive the transmission time distribution characteristics of the business datum from the terminal；
The access network elements determine the data transmission period according to the transmission time distribution characteristics.
4. according to the method described in claim 1, it is characterised in that access network elements determine that the data of the business datum of terminal are passed
The defeated time includes：
The access network elements receive the transmission time distribution characteristics of the business datum from core net；
The access network elements determine the data transmission period according to the transmission time distribution characteristics.
5. according to the method described in claim 1, it is characterised in that the access network elements by the SRS resource of configuration and
The entry-into-force time, which is sent to the terminal, to be included：The access network elements by the SRS resource of configuration and it is described come into force when
Between the terminal is sent to by radio resource control RRC dedicated signaling.
6. according to the method described in claim 1, it is characterised in that the access network elements according to the data transmission period,
The entry-into-force time for configuring SRS resource and the SRS resource for the terminal includes：The access network elements are passed according to the data
The defeated time, is the entry-into-force time of the terminal configuration cycle SRS resource and the cycle SRS resource, and configures aperiodic SRS
The entry-into-force time of resource and the aperiodic SRS resource.
7. according to the method described in claim 1, it is characterised in that the access network elements according to the data transmission period,
The entry-into-force time for configuring SRS resource and the SRS resource for the terminal includes：The access network elements are passed according to the data
The entry-into-force time of defeated time, only described terminal configuration cycle SRS resource and the cycle SRS resource.
8. method according to claim 7, it is characterised in that when the access network elements are according to the data transfer
Between, after the entry-into-force time of only described terminal configuration cycle SRS resource and the cycle SRS resource, methods described is also wrapped
Include：When the terminal was in outside the entry-into-force time of the cycle SRS resource, the access network elements are sent to the terminal
Control signaling, wherein the control signaling is used to indicate that the terminal sends aperiodic SRS.
9. according to the method described in claim 1, it is characterised in that in the access network elements by the SRS resource of configuration
It is sent to the entry-into-force time after the terminal, methods described also includes：
When the terminal was in outside the entry-into-force time, it is to be sent upper that the access network elements determine that the terminal is present
Row data；
The access network elements give the terminal distribution ascending resource；
The access network elements receive the upstream data from the terminal using the ascending resource.
10. method according to claim 9, it is characterised in that give the terminal uplink resource in the access network elements
Before, methods described also includes：
The access network elements determine that uplink synchronous is not present between the terminal；
The uplink synchronous is re-established between the access network elements and the terminal.
11. method according to any one of claim 1 to 10, it is characterised in that the SRS resource include it is following at least
One of：The usage cycles for the uplink radio resources that uplink radio resources that SRS is used, SRS are used, SRS are used
The initial frequency-domain biasing that the time domain biasing of uplink radio resources, SRS are sent.
12. the method according to any one of claim 1 to 5,7 to 10, it is characterised in that the entry-into-force time include with
It is at least one lower：The cycle of coming into force of the entry-into-force time, the length of the entry-into-force time come into force in the cycle, described come into force
The biasing of the initial time of the entry-into-force time in cycle.
13. method according to claim 6, it is characterised in that the entry-into-force time of the cycle SRS resource is included below extremely
It is one of few：The cycle of coming into force of the entry-into-force time, the length of the entry-into-force time come into force in the cycle, described come into force the cycle
The biasing of the initial time of the interior entry-into-force time.
14. a kind of device for allocating resources of uplink sounding reference signal, applied to access network elements, it is characterised in that bag
Include：
Determining module, the data transmission period of the business datum for determining terminal；
Configuration module, for according to the data transmission period, being the terminal collocating uplink link detection reference signal SRS moneys
Source and the entry-into-force time of the SRS resource, wherein the SRS resource and the entry-into-force time be used to indicating the terminal only by
Allow to send SRS using the SRS resource in the entry-into-force time；
Sending module, for the SRS resource of configuration and the entry-into-force time to be sent into the terminal.
15. device according to claim 14, it is characterised in that the determining module includes：Determination sub-module, for root
The data transmission period is determined according to the historical transmission times of the business datum.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228307.3A CN102932919B (en) | 2011-08-10 | 2011-08-10 | The resource allocation method and device of uplink sounding reference signal |
| PCT/CN2012/075911 WO2013020404A1 (en) | 2011-08-10 | 2012-05-22 | Resource configuration method and device for uplink sounding reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228307.3A CN102932919B (en) | 2011-08-10 | 2011-08-10 | The resource allocation method and device of uplink sounding reference signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102932919A CN102932919A (en) | 2013-02-13 |
| CN102932919B true CN102932919B (en) | 2017-10-20 |
Family
ID=47647577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110228307.3A Active CN102932919B (en) | 2011-08-10 | 2011-08-10 | The resource allocation method and device of uplink sounding reference signal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102932919B (en) |
| WO (1) | WO2013020404A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6385421B2 (en) * | 2013-04-01 | 2018-09-05 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | Terminal and DMRS generation method |
| CN106465407B (en) * | 2015-04-20 | 2019-11-26 | 华为技术有限公司 | Data transmission method for uplink and equipment |
| CN107360630A (en) * | 2016-05-10 | 2017-11-17 | 北京信威通信技术股份有限公司 | The cut-in method and device of a kind of uplink detection reference signal |
| KR102284372B1 (en) | 2016-08-11 | 2021-08-02 | 엘지전자 주식회사 | A method for a terminal to transmit data to another terminal in a wireless communication system |
| WO2018076361A1 (en) * | 2016-10-31 | 2018-05-03 | 华为技术有限公司 | Uplink transmission method, terminal device and access network device |
| CN108882371B (en) * | 2017-05-15 | 2021-03-23 | 华为技术有限公司 | Resource allocation method, equipment and system |
| CN108989006A (en) * | 2017-06-05 | 2018-12-11 | 中兴通讯股份有限公司 | User packet method, device, base station and the storage medium of space division multiple access |
| US10855421B2 (en) * | 2017-08-10 | 2020-12-01 | Qualcomm Incorporated | Configuration of sounding reference signal resources in an uplink transmission time interval |
| CN113747585A (en) * | 2017-11-27 | 2021-12-03 | 华为技术有限公司 | Link recovery method, terminal equipment and network equipment |
| CN112369088B (en) * | 2018-05-29 | 2024-04-05 | 上海诺基亚贝尔股份有限公司 | Sounding reference signal transmission in unlicensed spectrum |
| CN110912664B (en) * | 2018-09-17 | 2022-08-05 | 中国移动通信有限公司研究院 | Information configuration method and equipment |
| WO2023193131A1 (en) * | 2022-04-06 | 2023-10-12 | Qualcomm Incorporated | Enhancement for aperiodic sounding reference signal scheduling |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436892A (en) * | 2007-08-06 | 2009-05-20 | 三菱电机株式会社 | Method for selecting antennas in a wireless network |
| CN101771463A (en) * | 2009-01-05 | 2010-07-07 | 大唐移动通信设备有限公司 | Method, device and system for sending uplink sounding reference signal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101441500B1 (en) * | 2008-06-20 | 2014-11-04 | 삼성전자주식회사 | Apparatus and method for transmission of sounding reference signal in uplink wireless communication systems with multiple antennas and sounding reference signal hopping |
| KR101294815B1 (en) * | 2009-05-15 | 2013-08-08 | 엘지전자 주식회사 | Method for transmitting sounding reference signal in wireless communication system and apparatus therefor |
-
2011
- 2011-08-10 CN CN201110228307.3A patent/CN102932919B/en active Active
-
2012
- 2012-05-22 WO PCT/CN2012/075911 patent/WO2013020404A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436892A (en) * | 2007-08-06 | 2009-05-20 | 三菱电机株式会社 | Method for selecting antennas in a wireless network |
| CN101771463A (en) * | 2009-01-05 | 2010-07-07 | 大唐移动通信设备有限公司 | Method, device and system for sending uplink sounding reference signal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013020404A1 (en) | 2013-02-14 |
| CN102932919A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102932919B (en) | The resource allocation method and device of uplink sounding reference signal | |
| CN102932920B (en) | Radio resource scheduling request (SR) configuration method and device | |
| JP6538938B2 (en) | System and method for constant connection in a wireless communication system | |
| CN103442442B (en) | The method of device discovery in the D2D communication system that a kind of base station is assisted | |
| CN104936133B (en) | Method, base station and the terminal of machine type communication | |
| CN104813713B (en) | The system and method for the device discovery protocol for the ad-hoc/ network assistances that equipment is communicated for equipment | |
| CN106550457B (en) | A kind of resource allocation methods and device | |
| US9585075B2 (en) | Coverage boosting transmission method for LTE technology | |
| CN108834213B (en) | Low-downlink delay communication method and system in Internet of things | |
| WO2018113397A1 (en) | Method and apparatus for determining clock time deviation between terminal and base station | |
| CN102932111B (en) | Reporting method and device for wireless channel state indicator | |
| WO2019095307A1 (en) | Method and device for transmitting message | |
| CN110460419A (en) | Method for transmitting uplink data and device, storage medium, terminal, base station | |
| CN106793136B (en) | user equipment and its data transmission method | |
| KR20110081724A (en) | Method and apparatus of paging for high power saving reception mode m2m/mtc device communication in a mobile communication system | |
| CN110225547A (en) | A kind of scheduling request sending, receiving method, terminal and network side equipment | |
| KR20220002593A (en) | A method for repeating a transport block (TB) over multiple transmit/receive points (TRP). | |
| CN104159306B (en) | A kind of method, equipment and system for controlling interface-free resources | |
| KR20220119477A (en) | Method and device for sidelink communication | |
| CN103430584A (en) | Method and apparatus for reducing interference | |
| US9226229B2 (en) | Method for internet protocol-based sleep mode control using synchronization information | |
| CN116368884A (en) | Systems and methods utilizing PUCCH enhancements that repeat within slots towards multiple TRPs | |
| WO2020063266A1 (en) | Harq process id determination method and apparatus, terminal, and medium | |
| CN104717763B (en) | method, device and system for transmitting data | |
| CN111436119B (en) | DRX transmission method and related equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201230 Address after: 225400 Hongqiao Industrial Park, Taixing City, Jiangsu Province Patentee after: JIANGSU SHENGRI MACHINERY EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 518057 No. 55 South Science and technology road, Shenzhen, Guangdong, Nanshan District Patentee before: ZTE Corp. |