CN109391408A - Scheduling request indication transmission method in a kind of ofdm system - Google Patents
Scheduling request indication transmission method in a kind of ofdm system Download PDFInfo
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- CN109391408A CN109391408A CN201710682324.1A CN201710682324A CN109391408A CN 109391408 A CN109391408 A CN 109391408A CN 201710682324 A CN201710682324 A CN 201710682324A CN 109391408 A CN109391408 A CN 109391408A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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Abstract
The embodiment of the present invention provides scheduling request indication transmission method in a kind of ofdm system.The described method includes: the configuration information based on SR resource, user equipment indicate the triggering of scheduling request by MAC layer, and the scheduling request is sent by physical layer.The embodiment of the present invention is in the case where the lateral user equipment of network indicates SR resource distribution, it is proposed scheduling request indication transmission method in a kind of ofdm system, user equipment indicates the triggering of scheduling request by MAC layer, SR transfer resource is obtained according to the configuration information of SR resource, the scheduling request is sent by physical layer.
Description
Technical field
The present invention relates to fields of communication technology, refer to more particularly, to scheduling request in a kind of ofdm system
Show transmission method.
Background technique
In broadband access system, system available bandwidth is divided into multiple subbands continuously or discontinuously, each subband
It is upper to use orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) technical transmission.
It by sub-band division is synchronous subband and common sub-band according to function, the synchronization for being mainly used for uplink and downlink of synchronous subband and broadcast letter
Road, common sub-band are used for the transmission of regular traffic.
In order to reduce cost and implementation complexity, user equipment (User Equipment, UE) can support multi-subband and list
Subband operating mode, i.e. UE receiver bandwidth need not be whole system bandwidth, can support to receive multiple or single subband, and be not required to
Whole subbands can centainly be received.According to the difference of hardware capabilities, UE support works on all or part of subband, wherein most
Simply the UE support of (i.e. at low cost) works on single subband.In this way, reducing the requirement to UE receiver bandwidth, also reduce
Demand of the system to hardware capabilities.
Electric power load monitoring and control communication network is exactly a typical application scenarios, and frequency spectrum is dispersedly distributed in 230M frequency range
On.Net 230MHz band frequency resource distribution schematic diagram is as shown in Figure 1.As can be seen from the figure its frequency spectrum is in pectination, the frequency
If the frequency resource of section can be divided into a subband, the subband of minimum frequency point is 223.525MHz, and the subband of highest frequency point is
231.65MHz。
For UE supports list band operating mode, it is carried on the Downlink Control Information of down control channel (PDCCH)
(Downlink Control Information, DCI) must be independently transmitted on each subband, and otherwise list band UE is because receiving
The limitation of machine bandwidth and PDCCH can not be monitored.The characteristics of therefore, it is necessary to be directed to 230MHz band frequency resource, list band UE work
The demand of operation mode and the requirement of covering carry out designing system scheme, for indicating the electricity of SR resource distribution to user equipment
Power communication network, it is also necessary to the further transmission method of instruction SR.
Summary of the invention
The present invention provides a kind of orthogonal frequency division multiplexing system for overcoming the above problem or at least being partially solved the above problem
Scheduling request indication transmission method in system.
According to an aspect of the present invention, scheduling request indication transmission method in a kind of ofdm system is provided,
Include:
Based on the configuration information of SR resource, user equipment indicates the triggering of scheduling request by MAC layer, and passes through physical layer
Send the scheduling request.
The embodiment of the present invention proposes a kind of orthogonal in the case where the lateral user equipment of network indicates SR resource distribution
Scheduling request indication transmission method in Frequency Division Multiplexing system, user equipment indicates the triggering of scheduling request by MAC layer, according to SR
The configuration information of resource obtains SR transfer resource, sends the scheduling request by physical layer.
Detailed description of the invention
Fig. 1 is power network of embodiment of the present invention 230MHz band frequency resource distribution schematic diagram；
Fig. 2 is wireless frame structure schematic diagram in communication system of the embodiment of the present invention；
Fig. 3 is scheduling request indication transmission method schematic diagram in ofdm system of the embodiment of the present invention；
Fig. 4 is a kind of user device architecture schematic diagram of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Power telecom network is come into being to guarantee the safe and stable operation of electric system.It is the same as electric system
Relay protection and safety stabilization control system, dispatch automated system are collectively referred to as the three of safe and stable operation of power system by people
Big pillar.Currently, it is even more the basis of power network schedule automation, the network operation marketization and management modernization；It is to ensure that power grid
Safe and stable, economical operation important means；It is the important infrastructure of electric system.Since power telecom network is to communication
The rapidity and accuracy has and strict requirements that reliability, protection control information transmit, and power department possesses development
The special resource advantage of communication, therefore, mode of the Utilities Electric Co. of most countries all based on self-built establishes electricity in the world
Force system private wire network.
Power telecom network is with LTE system and based on cellular narrowband Internet of Things (Narrow Band Internet of
Things, NB-IoT) there are many resemblances, but also have the characteristics of electric system, electric system is a kind of orthogonal frequency division multiplexing system
System.The embodiment of the present invention is based on power communication system, list band frame structure design such as Fig. 2 institute of 230MHz frequency range electric power pool
Show, SR accounts for 4 symbols in a radio frame, and positioned at rear 4 symbols of subframe 1, therefore UE is without knowing that SR sends subframe numbers.
Specifically, the length of a radio frames is 25ms in the system, it includes the subframe of 5 5ms, 9 OFDM symbols of every subframe.Its
The middle feature according to the system uplink and downlink business plans uplink and downlink resource.Downlink resource be subframe 09 symbols and
Preceding 4 symbols of subframe 1, totally 13 symbols.Ascending resource is rear 4 symbols and subframe 2, subframe 3, subframe 4 of subframe 1,
If SR is configured in some radio frames, SR is rear 4 symbols of subframe 1.The wireless frame structure of all embodiments of the invention
As hereafter Fig. 2 is repeated no more.
The embodiment of the present invention proposes a kind of orthogonal frequency in the case where the lateral user equipment of network indicates SR resource distribution
Scheduling request indication transmission method in division multiplexing system, as shown in Figure 3, comprising:
S100, based on the configuration information of SR resource, user equipment indicates the triggering of scheduling request by MAC layer, and passes through
Physical layer sends the scheduling request.
Method described in the embodiment of the present invention is user side method, and the executing subject of the user side in a communications system is
User equipment (User Equipment, UE).User equipment of the present invention can be the various catv terminals in communication system
Or wireless terminal, such as mobile phone, plate, computer.UE described in this document refers to user equipment described in the embodiment of the present invention, and the two exists
It can be replaced mutually in context semanteme.
Scheduling request described in the embodiment of the present invention (Scheduling Request, SR) is UE to base station (Evolved
Node B, eNodeB) a kind of mode of the request resource for new data transmission.UE sends scheduling request in the power communication network
(SR) come the ascending resource to eNodeB request for newly transmitting.SR is triggered by BSR, eNodeB by according to certain principle at this
UE is distributed in dedicated SR resource or fast scheduling SR resource and is repeated transmission SR according to primary number.SR repeats to transmit in the time domain,
Coverage enhancement is supported by energy accumulation.
User equipment of the embodiment of the present invention indicates the triggering of scheduling request by MAC layer, according to the configuration information of SR resource
SR transfer resource is obtained, the scheduling request is sent by physical layer, to provide the instruction transmission of SR in power telecom network
Method.
The embodiment of the present invention carries out SR transmission instruction, the correlation of SR transmission instruction based on the user equipment of configured SR resource
Parameter depends on the configuration information of SR resource.
In one embodiment, the configuration information of the SR resource includes some or all of in following parameters: SR user
Resident factor sr-residentF, SR number of repetition factor sr-NumRepetitionFactor, SR maximum transmission times dsr-
The dedicated SR configuration information of TransMax, UE and fast tune SR configuration information；
The SR user is resident factor sr-residentF, be used to indicate in a cell SR resource on each subband when
Between be spaced；
The SR number of repetition factor sr-NumRepetitionFactor is used to indicate the number of repetition for sending SR；
SR maximum transmission times dsr-TransMax refers to the maximum times that can carry out SR transmission；
The dedicated SR configuration information of UE is the specific transmission scheduling request money that network side is user equipment distribution
The configuration parameter in source, including establish the dedicated SR configuration of UE and/or the dedicated SR configuration of release UE, wherein it is described to establish the dedicated SR of UE
It include SR resource location information in configuration；
It is to carry out the user equipmenies of fast scheduling mode transmission services to allocate in advance that the fast tune SR configuration information, which is network side,
Transmission scheduling request resources configuration parameter, including fast adjust SR configuration and/or release is fast adjusts SR configuration comprising establishing, wherein
Fast adjust in SR configuration of the foundation includes SR resource location information.
In the embodiment of the present invention, for the reasonable utilization of compatible with single subband UE and optimization sub-band resources, SR resource is divided into
The dedicated SR resource of UE and fast scheduling SR resource.
Wherein, the dedicated SR resource of UE is the resource for the specific transmission scheduling request that network side is UE distribution, which is
It is periodically effective.It is the transmission SR for carrying out the UE of fast scheduling mode transmission services and planning in advance that fast scheduling SR resource, which is network side,
Resource, the resource be only used in meets UE with fast scheduling mode carry out business transmission under conditions of just can be used, it can also claim
To adjust SR resource fastly, which is that event mode is periodically effective.
The fast scheduling mode refers to that network side dispatches the UE because the residence sub-band where UE is carrying out data transmission
When can allocate resources on other subbands (i.e. non-resident subband) of UE, the UE scheduling instruction non-resident subband on carry out
Business data transmission.In this way, can not only guarantee that UE carried out data transmission in time, but also can preferably rationally be provided using system
Source.
In all embodiments of the invention, repeats transmission SR and belong to a SR transmission；The SR resource location information is for UE
The relevant parameter of the transmission SR resource location of configuration, hereafter repeats no more.
In an alternative embodiment, user equipment described in S100 indicates the triggering of scheduling request by MAC layer, and
The scheduling request is sent by physical layer, further comprises the first instruction transmission mode or the second instruction transmission mode；
First indicates that transmission mode includes:
The user equipment indicates the triggering of scheduling request by MAC layer, safeguards the scheduling request by physical layer
It repeats to send；First time based on the physical layer sends instruction and repeats to send instruction each time, and the physical layer sends institute
State scheduling request；
Second indicates that transmission mode includes:
The user equipment indicates the triggering of scheduling request by MAC layer, and safeguards that the repetition of the scheduling request is sent；
First time based on the MAC layer sends instruction and repeats to send instruction each time, and the physical layer sends the scheduling request.
Two kinds of SR indication transmission methods are provided in the embodiment of the present invention, common ground is: being asked by MAC layer instruction scheduling
The triggering asked and the physical layer send the scheduling request.The triggering that scheduling request is indicated by MAC layer, refers to
Triggering each time in SR maximum transmission times dsr-TransMax.The physical layer sends the scheduling request, refers to every
Once SR specifically is sent to network side.Its distinctive points is: the first instruction transmission mode safeguards that the scheduling is asked by physical layer
The repetition asked is sent, and the second instruction transmission mode safeguards that the repetition of the scheduling request is sent by MAC layer.It is described to repeat to send out
It send, refers to the repetition transmission times triggered each time in SR maximum transmission times dsr-TransMax, with the SR resource
SR number of repetition factor sr-NumRepetitionFactor is related in configuration information.
Under the first instruction transmission mode, after MAC indicates the triggering of SR, by physical layer according to the configuration of the SR resource
Information carries out SR and repeats the instruction sent, and physical layer repeats the instruction sent according to the SR of oneself, and the SR carried out each time is sent.
Under the second instruction transmission mode, after MAC indicates the triggering of SR, lesion MAC layer according to the configuration information of the SR resource into
Row SR repeats the instruction sent, repeats the instruction of transmission according to the SR of oneself by physical layer, and the SR carried out each time is sent.
In an alternative embodiment, the user equipment indicates the triggering of scheduling request by MAC layer, and passes through object
It manages layer and sends the scheduling request, further includes: for the first instruction transmission mode, the physical layer is according to the SR resource
Configuration information obtain the SR resource location and SR number of repetition of the scheduling request；Transmission mode is indicated for described second,
The physical layer obtains the SR resource location of the scheduling request according to the configuration information of the SR resource.
In an alternative embodiment,
In the first instruction transmission mode and the second instruction transmission mode, physical layer is matched according to the SR resource
Set the SR resource location of scheduling request described in acquisition of information, comprising: the physical layer is according to the scheduling mode of the user equipment
It determines and sends the corresponding SR resource type of the used SR resource of SR, the SR resource type is the dedicated SR of UE or adjusts SR fastly, is obtained
SR resource location information in the SR resource type；
In the first instruction transmission mode, physical layer obtains the scheduling request according to the configuration information of the SR resource
SR number of repetition, comprising: the physical layer according to SR user in the configuration information of the SR resource be resident the factor, SR repeat time
The covering grade of the number factor and the user equipment obtains SR number of repetition.
In an alternative embodiment, the physical layer is determined according to the scheduling mode of the user equipment sends SR institute
Use the corresponding SR resource type of SR resource, comprising:
If the user equipment is in fast scheduling mode, the SR resource type is fast tune SR；Otherwise the SR resource
Type is the dedicated SR of UE.
The dedicated SR resource of the dedicated SR, that is, UE of UE described in the embodiment of the present invention, the fast tune SR is i.e. fast to adjust SR resource.Physical layer
SR resource location and SR number of repetition are obtained according to the configuration information of the SR resource, for sending SR and instruction SR to network side
Repeat transmission times.
The covering grade of user equipment described in the embodiment of the present invention are as follows:
Every cell configures different covering grades according to UE distribution situation, and provides RSRP thresholding in each covering grade
It is worth range, UE can map out covering grade locating for UE according to the RSRP measured value of itself and corresponding RSRP threshold value range.
The number of covering grade and each covering grade, which correspond to the mapping of RSRP measurement report, to be configured by network side.For example, having
Network side can be that cell can configure at most 3 covering grades according to UE distribution situation in body realization.
In an alternative embodiment, user equipment described in the first instruction transmission mode is indicated by MAC layer
The triggering of scheduling request, comprising:
If the ascending resource of the configured SR on current TTI be spaced with measurement do not conflict, SR forbids timer not running and
SR transmission times is less than SR maximum number of times of transmission, then the MAC layer notice physical layer sends uplink tune on the ascending resource
Degree request.
Under certain conditions, MAC layer indicates one to physical layer to first instruction transmission mode described in the embodiment of the present invention
Secondary SR triggering, i.e. notice physical layer send uplink scheduling request on the ascending resource；SR triggering herein refers to SR maximum
A SR in transmission times dsr-TransMax is sent.SR transmission further includes that several repetitions are sent, and is passed described first
It repeats to send by physical layer instruction SR under defeated mode, wherein SR is repeated to send and be obtained by physical layer according to the configuration information of SR resource
It arrives, please refers to the associated description of above-described embodiment.The specified conditions are the uplink money for including: configured SR on current TTI
Source does not conflict with measurement interval, SR forbids timer sr-ProhibitTimer not running and SR transmission times is sent out less than SR maximum
Send number dsr-TransMax.
Described in the embodiment of the present invention measurement interval for UE receiver bandwidth be not enough to cover simultaneously serving cell frequency point with
Where cell to be measured when frequency point, cell to be measured is measured with certain gap.Pilot frequency point gives the difference of UE ability, sometimes
The auxiliary for needing to measure interval can just measure；Common frequency measurement due to center frequency point to be measured be serving cell center frequency point and
Without using interval.
In an alternative embodiment, in the first instruction transmission mode, the MAC layer notice physical layer is described
On ascending resource after or before transmission uplink scheduling request further include:
The SR transmission times is added 1；Starting SR forbids regular device.
The embodiment of the present invention counts the triggering of SR each time that MAC is indicated, that is, calculates SR transmission times each time.When
It is every to carry out a SR triggering instruction when SR transmission times is less than SR maximum number of times of transmission dsr-TransMax, by the SR
Transmission times increases by 1, while starting SR and forbidding timer sr-ProhibitTimer.The SR forbids timer sr-
ProhibitTimer is carried in MAC-MainConfig cell, and class is compared with LTE technology.Two of them processing: will be described
SR transmission times adds 1 and starting SR to forbid regular device, physical layer can be notified to send on the ascending resource in the MAC layer
After uplink scheduling request or the MAC layer notice physical layer send uplink scheduling request on the ascending resource before, or
One processing is before MAC layer notice physical layer sends uplink scheduling request on the ascending resource, another processing
After MAC layer notice physical layer sends uplink scheduling request on the ascending resource, the present embodiment does not make this to have
Body limits.
In an alternative embodiment, the scheduling is safeguarded by physical layer described in the first instruction transmission mode
The repetition of request is sent, comprising:
The triggering and the SR number of repetition of scheduling request based on MAC layer instruction, the physical layer is on described
The SR resource location of row resource starts to indicate SR, and repeats instruction SR in the subsequent SR resource location of the ascending resource.
In the embodiment of the present invention, after physical layer receives the SR triggering of MAC layer instruction, the SR that is obtained according to previous embodiment
Number of repetition, SR is sent each time for duplicate instruction, and SR transmission each time is also completed by physical layer.
Specifically, physical layer will first determine its available SR resource type (the dedicated SR resource of UE or fast tune SR resource), then
The available SR resource location that the type is determined according to high-rise configuration parameter, according to the covering grade of current UE and high-rise configuration ginseng
Number determines SR number of repetition.Finally, physical layer starts to indicate SR on the last available SR resource location, and subsequent
Instruction SR is repeated on available SR resource location.Wherein, the method that physical layer determines available SR resource type is according to current
Whether UE is in fast scheduling mode, if UE is presently at fast scheduling mode and carries out data transmission, dispatches SR resource using fast,
Otherwise the dedicated SR resource of UE is used.
In an alternative embodiment, described that the tune is safeguarded by physical layer in the first instruction transmission mode
The repetition of degree request is sent, further includes:
If the physical layer receives the notice that the MAC layer stops SR instruction, physical layer stops SR instruction.
In the embodiment of the present invention, when physical layer, which is received, stops ongoing SR instruction by the physical layer of MAC layer notice,
If physical layer indicates that SR number does not reach SR number of repetition, i.e. physical layer instruction SR not yet all complete by instruction, then object
It manages layer and stops SR instruction.
In an alternative embodiment, user equipment described in the second instruction transmission mode is indicated by MAC layer
The triggering of scheduling request, and safeguard that the repetition of the scheduling request is sent, comprising:
If the ascending resource of the configured SR on current TTI does not conflict with measurement interval, SR forbids timer not running, SR
Timer not running, SR transmission times are repeated less than SR maximum number of times of transmission and current SR repeat count is less than SR number of repetition,
Then the MAC layer notice physical layer sends a SR on the ascending resource.
Under certain conditions, MAC layer indicates one to physical layer to second instruction transmission mode described in the embodiment of the present invention
Secondary SR is sent, i.e., MAC layer is responsible for triggering and safeguards that SR repeats to send, and the transmission that repeats each time of SR is all triggered by MAC layer, physics
Layer is responsible for sending SR according to the notice of MAC layer, and the notice for often receiving a MAC layer just sends a SR；SR triggering herein
Refer to that a SR in SR maximum number of times of transmission dsr-TransMax is sent.SR transmission further includes that several repetitions are sent, in institute
It states and repeats to send by MAC layer instruction SR under the second transmission mode, wherein SR repeats to send by physical layer according to the configuration of SR resource
Information obtains, and please refers to the associated description of above-described embodiment.The specified conditions be include: configured SR on current TTI
Ascending resource does not conflict with measurement interval, SR forbids timer sr-ProhibitTimer not running, SR repeats timer sr-
NumRepetitionTimer not running, SR transmission times are less than SR maximum number of times of transmission dsr-TransMax and current SR and repeat
It counts and is less than SR number of repetition.
In an alternative embodiment, in the second instruction transmission mode, the MAC layer notice physical layer is described
After or before sending a SR on ascending resource further include:
Processing 1: if the current SR repeat count is equal to 0, the SR transmission times is added 1；
Processing 2: the current SR repeat count is added 1；Start SR and repeats timer.
The embodiment of the present invention is repeated to send and be counted to the SR each time that MAC is indicated, i.e., current SR repeat count.MAC
Directly according to condition instruction, SR repeats to send layer each time, during indicating each time, needs to repeat to count by the current SR
Number increases by 1, while starting SR and repeating timer sr-NumRepetitionTimer；Also the SR each time of MAC instruction is touched simultaneously
Hair is counted, and needs to judge whether the current SR repeat count is equal to 0, if so, the SR transmission times is added 1.
Wherein processing 1 and processing 2 can the MAC layer notify physical layer sent on the ascending resource SR it
Afterwards or before MAC layer notice physical layer sends after SR on the ascending resource, it or handles 1 in the MAC layer
Before notice physical layer is sent after a SR on the ascending resource, the MAC layer notice physical layer of processing 2 is on described
After sending a SR in row resource, the present embodiment is not especially limited this.But processing 1 must be before processing 2.
In an alternative embodiment, in the second instruction transmission mode, if the current SR repeat count is equal to
The current SR repeat count is then set 0 by SR number of repetition, and starting SR forbids timer.
If the current SR repeat count of the embodiment of the present invention is equal to SR number of repetition, a SR triggering is completed, by institute
It states current SR repeat count and sets 0 while starting SR and forbid timer sr-ProhibitTimer.
In an alternative embodiment, user equipment described in the second instruction transmission mode is indicated by MAC layer
The triggering of scheduling request, and safeguard that the repetition of the scheduling request is sent, further includes: the MAC layer obtains the physical layer
SR number of repetition, for safeguarding that the repetition of the scheduling request is sent.
In the embodiment of the present invention, due to MAC layer while safeguarding that the triggering of SR and the repetition of SR are sent, and SR repeats transmission time
Number is calculated by physical layer, therefore the MAC layer needs to obtain the SR number of repetition of the physical layer, to safeguard the scheduling request
Repetition send.
In an alternative embodiment, in the first instruction transmission mode or in the second instruction transmission mode,
The user equipment indicates the triggering of scheduling request by MAC layer, and sends the scheduling request by physical layer, further includes:
If the SR transmission times is equal to SR maximum number of times of transmission, MAC layer notifies rrc layer to discharge uplink control channel
(PUCCH) demodulated reference signal (SRS) or on the PUCCH removes all uplink authorizations and downstream grants, initiates this time
Random access procedure simultaneously cancels all pending SR.
In the embodiment of the present invention, the pending SR, refer to after SR is triggered, be cancelled before be regarded as pending scheduling
Request.
In an alternative embodiment, in the first instruction transmission mode or in the second instruction transmission mode,
The user equipment indicates the triggering of scheduling request by MAC layer, and sends the scheduling request by physical layer, further includes:
The ascending resource of configured SR if it does not exist, then MAC layer initiates this time random access procedure and cancels all pending SR.
According to above-described embodiment, scheduling request indication transmission method in a kind of ofdm system of the present invention is described
A kind of optional specific embodiment of first transmission mode is as follows:
The MAC layer processing of UE is as follows:
Caching shape until a MAC PDU is assembled and this PDU covers and (contain) nearest triggering BSR event
State or uplink authorization can accommodate all pending data to be passed, then cancel all pending scheduling requests, stop SR and forbid
Timer sr-ProhibitTimer, and physical layer is notified to stop ongoing SR instruction.
If it is 0 that SR, which is triggered and SR_COUNTER will be arranged currently without pending SR, UE,.
As long as there is pending SR, in each TTI, UE is answered:
If current TTI does not have available UL-SCH resource:
If UE indicates SR in any TTI without available ascending resource, a random access procedure is initiated simultaneously
Cancel all pending SR；
Otherwise, if UE is in current TTI have available ascending resource indicate SR and the TTI with measurement interval do not rush
It is prominent, and SR forbids timer sr-ProhibitTimer not run:
If SR_COUNTER < dsr-TransMax:SR maximum transmission times
SR_COUNTER is added 1；
Notice physical layer indicates SR on the ascending resource of available configuration SR；
Starting SR forbids timer sr-ProhibitTimer.
Otherwise:
RRC is notified to discharge PUCCH/SRS；
Remove all configured uplink and downlink authorizations；
It initiates a random access procedure and cancels all pending SR.
The SR processing of the physical layer of UE is as follows:
Once the MAC layer of UE notifies its physical layer to indicate SR on the ascending resource of available configuration SR.Physical layer will be first
It determines its available SR resource type (the dedicated SR resource of UE or fast tune SR resource), determines the type further according to high-rise configuration parameter
Available SR resource location, SR number of repetition is determined according to the covering grade of current UE and high-rise configuration parameter.Finally, physics
Layer starts to indicate SR on the last available SR resource location, and repeats to indicate on subsequent available SR resource location
SR.Wherein, the method that physical layer determines available SR resource type is whether to be in fast scheduling mode according to current UE, if UE works as
Before be to carry out data transmission in fast scheduling mode, then using fast scheduling SR resource, otherwise use the dedicated SR resource of UE.Work as physics
When layer receives the physical layer stopping ongoing SR instruction by MAC layer notice, if physical layer indicates that SR number does not reach
SR number of repetition, i.e. physical layer indicate that SR not yet all complete by instruction, then physical layer stops SR instruction.
According to above-described embodiment, scheduling request indication transmission method in a kind of ofdm system of the present invention is described
A kind of optional specific embodiment of second transmission mode is as follows:
The SR processing of the MAC layer of UE is as follows:
Scheduling request is used to carry out the application of the UL-SCH resource of new data transmission.That is the effect that UE sends SR is Xiang Jizhan
Request is used for the ascending resource of new data transmission.When a MAC PDU is assembled and this PDU covers and (contain) a nearest touching
Buffer status or uplink authorization until hair BSR event can accommodate all pending data to be passed, then cancel all pending
Scheduling request, stop SR forbidding timer sr-ProhibitTimer and SR repeat timer sr-
NumRepetitionTimer。
The length that wherein SR repeats timer sr-NumRepetitionTimer is equal to sr-residentF*1s.
Once SR is triggered, pending scheduling request is regarded as before it is cancelled.
If it is 0 that SR, which is triggered and SR_COUNTER will be arranged currently without pending SR, UE, SR_ is set
NumRepetition_COUNTER is 0, and provides the numerical value SR_NumRepetitions of SR number of repetition by physical layer.
As long as there is pending SR, in each TTI, UE is answered:
If current TTI does not have available UL-SCH resource:
If UE indicates SR in any TTI without available ascending resource, a random access procedure is initiated simultaneously
Cancel all pending SR；
Otherwise, if UE is in current TTI have available ascending resource indicate SR and the TTI with measurement interval do not rush
It is prominent, and SR forbids timer sr-ProhibitTimer not run, and SR repeats timer sr-NumRepetitionTimer
Do not run:
If SR_COUNTER < dsr-TransMax:
If SR_NumRepetition_COUNTER is equal to 0:
SR_COUNTER is added 1；
If SR_NumRepetition_COUNTER < SR_NumRepetitions:
SR_NumRepetition_COUNTER is added 1；
Notice physical layer indicates SR on the ascending resource of available configuration SR；
Start SR and repeats timer sr-NumRepetitionTimer.
Otherwise:
0 is set by SR_NumRepetition_COUNTER.
Starting SR forbids timer sr-ProhibitTimer.
Otherwise:
RRC is notified to discharge PUCCH/SRS；
Remove all configured uplink and downlink authorizations；
It initiates a random access procedure and cancels all pending SR.
In addition, SR, which forbids timer sr-ProhibitTimer, to be carried in MAC-MainConfig cell, class co-occurrence
There is LTE technology, which is using sr-residentF*1s as the number of the time interval of length.
The SR processing of the physical layer of UE is as follows:
Physical layer provides the numerical value SR_NumRepetitions of SR number of repetition for MAC layer.Once the MAC layer of UE notifies
Its physical layer indicates SR on the ascending resource of available configuration SR.Physical layer will first determine its available SR resource type (UE
Dedicated SR resource or fast tune SR resource), the available SR resource location of the type is determined further according to high-rise configuration parameter.Finally,
Physical layer indicates SR on the last available SR resource location.Wherein, physical layer determines the side of available SR resource type
Method is whether to be in fast scheduling mode according to current UE, if UE is presently at fast scheduling mode and carries out data transmission, is used
Fast scheduling SR resource, otherwise uses the dedicated SR resource of UE.
A kind of user based on scheduling request indication transmission method in a kind of ofdm system of the embodiment of the present invention
Equipment, including SR indicate that transmission module, the SR instruction transmission module are used for: the configuration information based on SR resource, user equipment
The triggering of scheduling request is indicated by MAC layer, and the scheduling request is sent by physical layer.
User equipment described in the embodiment of the present invention in ofdm system described in the embodiment of the present invention for realizing adjusting
Degree request indication transmission method, the present embodiment and following embodiment are indicated with scheduling request in the ofdm system
Transmission method corresponds, and the specific descriptions of each embodiment please refer to scheduling request in the ofdm system and indicate
Transmission method, details are not described herein again.
In an alternative embodiment, the configuration information of the SR resource includes some or all of in following parameters:
SR user is resident factor sr-residentF, SR number of repetition factor sr-NumRepetitionFactor, SR maximum transmitted time
The dedicated SR configuration information of number dsr-TransMax, UE and fast tune SR configuration information；
The SR user is resident factor sr-residentF, be used to indicate in a cell SR resource on each subband when
Between be spaced；
The SR number of repetition factor sr-NumRepetitionFactor is used to indicate the number of repetition for sending SR；
The maximum times of SR maximum transmission times dsr-TransMax, fingering row SR transmission；
The dedicated SR configuration information of UE is the specific transmission scheduling request money that network side is user equipment distribution
The configuration parameter in source, including establish the dedicated SR configuration of UE and/or the dedicated SR configuration of release UE, wherein it is described to establish the dedicated SR of UE
It include SR resource location information in configuration；
It is to carry out the user equipmenies of fast scheduling mode transmission services to allocate in advance that the fast tune SR configuration information, which is network side,
Transmission scheduling request resources configuration parameter, including fast adjust SR configuration and/or release is fast adjusts SR configuration comprising establishing, wherein
Fast adjust in SR configuration of the foundation includes SR resource location information.
In an alternative embodiment, SR indicates that transmission module includes the first instruction transmission unit or the second instruction transmission
Unit；
First instruction transmission unit, is used for:
The user equipment indicates the triggering of scheduling request by MAC layer, safeguards the scheduling request by physical layer
It repeats to send；First time based on the physical layer sends instruction and repeats to send instruction each time, and the physical layer sends institute
State scheduling request；
Second instruction transmission unit, is used for:
The user equipment indicates the triggering of scheduling request by MAC layer, and safeguards that the repetition of the scheduling request is sent；
First time based on the MAC layer sends instruction and repeats to send instruction each time, and the physical layer sends the scheduling request.
The first instruction transmission unit is also used in an alternative embodiment: the physical layer is according to the SR resource
Configuration information obtains the SR resource location and SR number of repetition of the scheduling request.Second instruction transmission unit is also used to the object
Reason layer obtains the SR resource location of the scheduling request according to the configuration information of the SR resource.
In an alternative embodiment, physical layer obtains the scheduling request according to the configuration information of the SR resource
SR resource location, comprising: the physical layer is determined according to the scheduling mode of the user equipment sends the used SR resource pair of SR
The SR resource type answered, the SR resource type is the dedicated SR of UE or adjusts SR fastly, obtains the SR resource in the SR resource type
Location information；
Physical layer obtains the SR number of repetition of the scheduling request according to the configuration information of the SR resource, comprising: described
Physical layer is resident the factor, the SR number of repetition factor and the user equipment according to SR user in the configuration information of the SR resource
Covering grade obtains SR number of repetition.
In an alternative embodiment, the physical layer is determined according to the scheduling mode of the user equipment sends SR institute
Use the corresponding SR resource type of SR resource, comprising:
If the user equipment is in fast scheduling mode, the SR resource type is fast tune SR；Otherwise the SR resource
Type is the dedicated SR of UE.
In an alternative embodiment, the first instruction transmission unit includes SR trigger unit, and the SR triggering is single
Member is used for:
If the ascending resource of the configured SR on current TTI be spaced with measurement do not conflict, SR forbids timer not running and
SR transmission times is less than SR maximum number of times of transmission, then the MAC layer notice physical layer sends uplink tune on the ascending resource
Degree request.
In an alternative embodiment, the SR trigger unit is also used to:
The SR transmission times is added 1；Starting SR forbids regular device.
In an alternative embodiment, the first instruction transmission unit further includes that SR repeats indicating unit, the SR
Indicating unit is repeated to be used for:
The triggering and the SR number of repetition of scheduling request based on MAC layer instruction, the physical layer is on described
The SR resource location of row resource starts to indicate SR, and repeats instruction SR in the subsequent SR resource location of the ascending resource.
In an alternative embodiment, the SR repetition indicating unit is also used to:
If the physical layer receives the notice that the MAC layer stops SR instruction, physical layer stops SR instruction.
In an alternative embodiment, the second instruction transmission unit includes instruction transmission unit, the instruction hair
Unit is sent to be used for:
If the ascending resource of the configured SR on current TTI does not conflict with measurement interval, SR forbids timer not running, SR
Timer not running, SR transmission times are repeated less than SR maximum number of times of transmission and current SR repeat count is less than SR number of repetition,
Then the MAC layer notice physical layer sends a SR on the ascending resource.
In an alternative embodiment, the instruction transmission unit is also used to:
If the current SR repeat count is equal to 0, the SR transmission times is added 1；
The current SR repeat count is added 1；Start SR and repeats timer.
In an alternative embodiment, the instruction transmission unit is also used to: if the current SR repeat count is equal to
The current SR repeat count is then set 0 by SR number of repetition, and starting SR forbids timer.
In an alternative embodiment, the instruction transmission unit is also used to: the MAC layer obtains the physical layer
SR number of repetition, for safeguarding that the repetition of the scheduling request is sent.
In an alternative embodiment, SR indicates that transmission module further includes clearing cell, and the clearing cell is used for: if
The SR transmission times is equal to SR maximum number of times of transmission, then MAC layer notice rrc layer release uplink control channel (PUCCH)
Or the demodulated reference signal (SRS) on the PUCCH, all uplink authorizations and downstream grants are removed, initiation this time connects at random
Enter process and cancels all pending SR.
In an alternative embodiment, SR indicates that transmission module further includes random access unit, the random access list
Member is used for: the ascending resource of configured SR if it does not exist, then MAC layer is initiated this time random access procedure and cancelled all pending
SR.
Fig. 4 shows a kind of structural schematic diagram of user equipment of the embodiment of the present invention.
Referring to Fig. 4, the user equipment, comprising: processor (processor) 901, memory (memory) 902 and total
Line 903；
Wherein, the processor 901 and memory 902 complete mutual communication by the bus 903；
The processor 901 is used to call the program instruction in the memory 902, to execute above-mentioned each method embodiment
Provided method, for example, the configuration information based on SR resource, user equipment indicate the touching of scheduling request by MAC layer
Hair, and the scheduling request is sent by physical layer.
Another embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-including being stored in
Computer program in transitory computer readable storage medium, the computer program include program instruction, when described program refers to
When order is computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, is provided based on SR
The configuration information in source, user equipment indicate the triggering of scheduling request by MAC layer, and send the scheduling by physical layer and ask
It asks.
Another embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer is readable
Storage medium stores computer instruction, and the computer instruction executes the computer provided by above-mentioned each method embodiment
Method, for example, the configuration information based on SR resource, user equipment indicate the triggering of scheduling request by MAC layer, and pass through
Physical layer sends the scheduling request.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as a kind of network equipment described above and a kind of user equipment are only schematical, wherein described
Unit may or may not be physically separated as illustrated by the separation member, and component shown as a unit can be with
It is or may not be physical unit, it can it is in one place, or may be distributed over multiple network units.It can
It is achieved the purpose of the solution of this embodiment with selecting some or all of the modules therein according to the actual needs.This field is common
Technical staff is without paying creative labor, it can understands and implements.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (16)
1. scheduling request indication transmission method in a kind of ofdm system characterized by comprising
Based on the configuration information of SR resource, user equipment indicates the triggering of scheduling request by MAC layer, and is sent by physical layer
The scheduling request.
2. the method as described in claim 1, which is characterized in that the configuration information of the SR resource includes the portion in following parameters
Divide or whole: SR user is resident factor sr-residentF, SR number of repetition factor sr-NumRepetitionFactor, SR most
The big dedicated SR configuration information of the number of transmissions dsr-TransMax, UE and fast tune SR configuration information；
The SR user is resident factor sr-residentF, is used to indicate in a cell on each subband between the time of SR resource
Every；
The SR number of repetition factor sr-NumRepetitionFactor is used to indicate the number of repetition for sending SR；
The maximum times of SR maximum transmission times dsr-TransMax, fingering row SR transmission；
The dedicated SR configuration information of UE is the specific transmission scheduling request resources that network side is user equipment distribution
Configuration parameter, including establish the dedicated SR configuration of UE and/or the dedicated SR configuration of release UE, wherein it is described to establish the dedicated SR configuration of UE
In include SR resource location information；
It is the pre-assigned hair of user equipment for carrying out fast scheduling mode transmission services that the fast tune SR configuration information, which is network side,
The configuration parameter of scheduling request resources is sent, including adjusts SR configuration and/or the fast tune SR configuration of release fastly comprising establishing, wherein is described
Establishing fast adjust in SR configuration includes SR resource location information.
3. method according to claim 2, which is characterized in that the user equipment indicates the touching of scheduling request by MAC layer
Hair, and the scheduling request is sent by physical layer, it further comprise the first instruction transmission mode or the second instruction transmission mode；
Described first indicates that transmission mode includes:
The user equipment indicates the triggering of scheduling request by MAC layer, and the repetition of the scheduling request is safeguarded by physical layer
It sends；First time based on the physical layer sends instruction and repeats to send instruction each time, and the physical layer sends the tune
Degree request；
Described second indicates that transmission mode includes:
The user equipment indicates the triggering of scheduling request by MAC layer, and safeguards that the repetition of the scheduling request is sent；It is based on
The first time of the MAC layer sends instruction and repeats to send instruction each time, and the physical layer sends the scheduling request.
4. method as claimed in claim 3, which is characterized in that the user equipment indicates the touching of scheduling request by MAC layer
Hair, and the scheduling request is sent by physical layer, further includes: for the first instruction transmission mode, the physical layer root
The SR resource location and SR number of repetition of the scheduling request are obtained according to the configuration information of the SR resource；Refer to for described second
Show that transmission mode, the physical layer obtain the SR resource location of the scheduling request according to the configuration information of the SR resource.
5. method as claimed in claim 4, which is characterized in that the first instruction transmission mode and the second instruction transmission
In mode, physical layer obtains the SR resource location of the scheduling request according to the configuration information of the SR resource, comprising: the object
It manages layer and the corresponding SR resource type of transmission the used SR resource of SR, the SR money is determined according to the scheduling mode of the user equipment
Source Type is the dedicated SR of UE or adjusts SR fastly, obtains the SR resource location information in the SR resource type；
In the first instruction transmission mode, physical layer obtains the SR of the scheduling request according to the configuration information of the SR resource
Number of repetition, comprising: the physical layer according to SR user in the configuration information of the SR resource be resident the factor, SR number of repetition because
The covering grade of the sub and described user equipment obtains SR number of repetition.
6. method as claimed in claim 5, which is characterized in that the physical layer is true according to the scheduling mode of the user equipment
Surely the corresponding SR resource type of the used SR resource of SR is sent, comprising:
If the user equipment is in fast scheduling mode, the SR resource type is fast tune SR；Otherwise the SR resource type
For the dedicated SR of UE.
7. such as the described in any item methods of claim 4-6, which is characterized in that user described in the first instruction transmission mode
Equipment indicates the triggering of scheduling request by MAC layer, comprising:
If the ascending resource of the configured SR on current TTI does not conflict with measurement interval, SR forbids timer not running and SR is sent out
Number is sent to be less than SR maximum number of times of transmission, then the MAC layer notice physical layer sends uplink scheduling on the ascending resource and asks
It asks.
8. the method for claim 7, which is characterized in that the MAC layer notice physical layer is sent out on the ascending resource
After or before sending uplink scheduling request further include:
The SR transmission times is added 1；Starting SR forbids regular device.
9. the method for claim 7, which is characterized in that tieed up described in the first instruction transmission mode by physical layer
The repetition for protecting the scheduling request is sent, comprising:
The triggering of scheduling request based on MAC layer instruction and the SR number of repetition, the physical layer are provided in the uplink
The SR resource location in source starts to indicate SR, and repeats instruction SR in the subsequent SR resource location of the ascending resource.
10. the method for claim 7, which is characterized in that pass through physical layer described in the first instruction transmission mode
Safeguard that the repetition of the scheduling request is sent, further includes:
If the physical layer receives the notice that the MAC layer stops SR instruction, physical layer stops SR instruction.
11. such as the described in any item methods of claim 4-6, which is characterized in that used described in the second instruction transmission mode
Family equipment indicates the triggering of scheduling request by MAC layer, and safeguards that the repetition of the scheduling request is sent, comprising:
If the ascending resource of the configured SR on current TTI does not conflict with measurement interval, SR forbids timer not running, SR is repeated
Timer not running, SR transmission times are less than SR maximum number of times of transmission and current SR repeat count is less than SR number of repetition, then institute
It states MAC layer notice physical layer and sends a SR on the ascending resource.
12. method as claimed in claim 11, which is characterized in that the MAC layer notice physical layer is on the ascending resource
After or before sending a SR further include:
If the current SR repeat count is equal to 0, the SR transmission times is added 1；
The current SR repeat count is added 1；Start SR and repeats timer.
13. method as claimed in claim 11, which is characterized in that if the current SR repeat count is equal to SR number of repetition,
The current SR repeat count is then set 0, starting SR forbids timer.
14. method as claimed in claim 11, which is characterized in that user equipment described in the second instruction transmission mode is logical
The triggering of MAC layer instruction scheduling request is crossed, and safeguards that the repetition of the scheduling request is sent, further includes: the MAC layer obtains institute
The SR number of repetition for stating physical layer, for safeguarding that the repetition of the scheduling request is sent.
15. such as the described in any item methods of claim 4-6, which is characterized in that the user equipment indicates to dispatch by MAC layer
The triggering of request, and the scheduling request is sent by physical layer, further includes: if the SR transmission times is sent equal to SR maximum
Number, then MAC layer notice rrc layer discharges the demodulated reference signal on uplink control channel (PUCCH) or the PUCCH
(SRS), all uplink authorizations and downstream grants are removed, this time random access procedure is initiated and cancel all pending SR.
16. such as the described in any item methods of claim 4-6, which is characterized in that the user equipment indicates to dispatch by MAC layer
The triggering of request, and the scheduling request is sent by physical layer, further includes: the ascending resource of configured SR if it does not exist, then
MAC layer initiates this time random access procedure and cancels all pending SR.
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| CN109391408B (en) | 2021-08-06 |
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