CN102905382B - Uplink authorization is utilized to send method and the terminal equipment of data in LTE system - Google Patents
Uplink authorization is utilized to send method and the terminal equipment of data in LTE system Download PDFInfo
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Abstract
The invention discloses in a kind of LTE system the method and the terminal equipment that utilize uplink authorization to send data.The method comprises: judge according to total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and BSR controls the transmission of cell when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if be all judged as YES, cancel the transmission that BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled.By means of technical scheme of the present invention, the utilization of UE to limited Internet resources can be improved.
Description
Technical field
The present invention relates to field of mobile communication, particularly relate to a kind of Long Term Evolution (Long TermEvolution, referred to as LTE) utilize in system uplink authorization to send the method for data and the terminal equipment (User Equipment, referred to as UE) based on LTE system.
Background technology
In the prior art, when the UE of LTE system and mobile network appliance carry out data communication, total upstream data amount that UE at a time can send to network side is determined by the uplink authorization of network allocation.And uplink authorization is dynamically determined at the upstream data buffer status reported before (waiting uplink user data amount to be sent) and network scheduling algorithm according to UE by network side.The uplink scheduling process of transmitting of UE side is realized by Medium Access Layer (MediaAccess Control, referred to as MAC).Fig. 1 is the signaling process figure that the uplink scheduling of whole system in prior art sends, and as shown in Figure 1, comprises following process:
Step 1, the MAC layer of UE obtains the data buffer storage state (that is, inquiring about the total amount of the first-class user data to be sent of current each up logic channel) of each the up logic channel for sending user data by inquiry;
Step 2, upstream data buffer status (waiting the total amount of user data to be sent) is controlled cell by buffer status report (Buffer Status Report, referred to as BSR) and reports network side by the MAC layer of UE;
Step 3, the BSR that network side reports according to UE, in conjunction with network scheduling algorithm, dynamically determines the upstream data amount that UE can send in a certain moment afterwards, and uplink authorization is informed to UE by down control channel;
Step 4, the uplink authorization that the MAC layer of UE issues according to network, the upstream data framing that will send becomes transmission block, and uplink transport channel sends.
In the prior art, the framing process of 36321 agreements to MAC layer of third generation partner program (The 3rd Generation PartnershipProject, referred to as 3GPP) has following regulation:
1, first judge whether that needing to send BSR controls cell.If needed, then utilize uplink authorization preferentially to assemble BSR and control cell;
2, remaining uplink authorization is then utilized to assemble the control cell of other needs transmission;
3, the last user data pending assembled successively from high to low according to priority of logical channels on up logic channel.Wherein, MAC only dispatch deal B value can be greater than 0 and the up logic channel do not hung up.
It should be noted that 3GPP 36321 agreement specifies: the B value that each logic channel is corresponding, for this reason the current maximum amount of data allowing to send of logic channel.Network can be corresponding two parameters of each logic channel configuration: the higher limit Bmax of △ B and B.B value is initialized as 0, and each TTI(transmission time interval, is generally 1ms), B value can increase △ B, until after reaching upper limit Bmax, B value no longer increases.After each scheduling sends this logic channel, upgrade the logical channel data amount that B=B-sends.
If 4 remaining mandates add the mandate that first step assembling BSR control cell takies, just can send all upstream datas and BSR cannot be sent, MAC controls the transmission of cell by cancelling BSR, and utilizes uplink authorization fully, sends the user data on all logic channels.
But, in the prior art, when remaining mandate add first step assembling BSR control the mandate that takies of cell just can send all upstream datas and BSR cannot be sent, the specific implementation how to judge above-mentioned situation is not provided.
Therefore, the present invention is based on this agreement regulation, proposing a kind of LTE terminal as much as possible utilizes uplink authorization to send the method for data, how to judge to remain uplink authorization add that BSR controls the problem that mandate that cell takies just can send all up logical channel datas to solve.
Summary of the invention
The invention provides in a kind of LTE system the method and the terminal equipment that utilize uplink authorization to send data, how to judge that remaining uplink authorization adds that BSR controls the mandate that takies of cell, just can send the problem of all up logical channel datas to solve in prior art.
The invention provides in a kind of LTE system the method utilizing uplink authorization to send data, comprise: step 1, the media access control MAC layer of terminal equipment UE obtains the data buffer storage state of each the up logic channel sending user data, and judge whether that needing to send the BSR carrying data buffer storage state controls cell, when needs send BSR control cell, transmission traffic sign placement BSR being controlled cell is to be sent, and the uplink authorization utilizing network side to distribute sends other control cells, wherein, sending the uplink authorization amount of BSR control required for cell is A, step 2, the channel id of the up logic channel that this can be dispatched in each up logic channel is kept in current activation logic channel array by MAC layer, record total number of this up logic channel that can dispatch in current activation logic channel array, and according to the channel id preserved in current activation logic channel array, dispatch corresponding up logic channel successively, step 3, the user data of the up logic channel of scheduling is assembled as transmission block according to the uplink authorization amount D of current residual by MAC layer, judge according to total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and BSR controls the transmission of cell when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if be all judged as YES, cancel the transmission that BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled.
Preferably, above-mentioned steps 3 specifically comprises: step 31, judge whether not execute all up logic channels in current activation logic channel array according to the total number be kept in current activation logic channel array and judge whether the surplus D of current uplink authorization is greater than 0, if be all judged as YES, perform step 32, otherwise perform step 35; Step 32, determines whether last up logic channel in current activation logic channel array, if the judgment is Yes, performs step 33, otherwise, perform step 34; Step 33, judge whether the uplink authorization amount C required for user data that this last up logic channel will send meets D<C≤D+A and whether the transmission mark that BSR controls cell is to be sent, when being all judged as YES, cancel the transmission that BSR controls cell, the surplus D of current uplink authorization is set to D=D+A, performs step 34; Otherwise, directly perform step 34; User data assembling in respective logical channels is transmission block according to the surplus D of current uplink authorization by step 34, and the surplus D=D-upgrading current uplink authorization assembles the uplink authorization amount that this transmission block uses, and performs step 31; Step 35, instruction physical layer sends the transmission block assembled.
Preferably, judge whether that needing to send the BSR control cell carrying data buffer storage state specifically comprises: judge whether that needs send the BSR carrying data buffer storage state and control cell according to 36321 agreements of 3GPP.
Preferably, before the data buffer storage state of each up logic channel of the MAC layer acquisition transmission user data of UE, said method also comprises: MAC layer is when receiving the up logic channel configuration information of network side, according to the priority of up logic channel, successively the up logic channel ID of correspondence is saved in logic channel configuration group from high to low; The up logic channel ID that in each up logic channel, this can be dispatched is kept in current activation logic channel array and specifically comprises by MAC layer: the MAC layer up logic channel corresponding to the up logic channel ID preserved in logic channel configuration group scans, the up logic channel ID that this can be dispatched, according to priority, is kept in current activation logic channel array from high to low.
Preferably, this up logic channel corresponding to up logic channel ID that can dispatch meets the following conditions: the buffer memory of up logic channel is for sky, up logic channel is not in suspended state and the B value of up logic channel is greater than 0, wherein, B value is the current maximum amount of data allowing to send of this up logic channel.
Preferably, other control cells are: the control cell that must send except BSR controls cell specified in 36321 agreements of 3GPP.
Present invention also offers a kind of terminal equipment based on LTE system, comprise: inquiry judging module, for being obtained the data buffer storage state of each the up logic channel sending user data by media access control MAC layer, and judge whether that needing to send the BSR carrying data buffer storage state controls cell, when needs send BSR control cell, transmission traffic sign placement BSR being controlled cell is to be sent, and the uplink authorization utilizing network side to distribute sends other control cells, wherein, sending the uplink authorization amount of BSR control required for cell is A, memory scheduling module, for the channel id of the up logic channel that this can be dispatched in each up logic channel being kept in current activation logic channel array by MAC layer, record total number of this up logic channel that can dispatch in current activation logic channel array, and according to the channel id preserved in current activation logic channel array, dispatch corresponding up logic channel successively, assembling judge module, for assembling as transmission block according to the uplink authorization amount D of current residual by the user data of the up logic channel of scheduling by MAC layer, judge according to total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and BSR controls the transmission of cell when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if be all judged as YES, cancel the transmission that BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled.
Preferably, assembling judge module specifically comprises: first judges submodule, for judging whether not execute all up logic channels in current activation logic channel array according to the total number be kept in current activation logic channel array by MAC layer and judging whether the surplus D of current uplink authorization is greater than 0, if be all judged as YES, call the second judgement submodule, otherwise call instruction submodule; Second judges submodule, for being determined whether last up logic channel in current activation logic channel array by MAC layer, if the judgment is Yes, calls the 3rd and judges submodule, otherwise, call assembling and upgrade submodule; 3rd judges submodule, for being judged by MAC layer whether the uplink authorization amount C of the user data that this last up logic channel will send meets D<C≤D+A and whether the transmission mark that BSR controls cell is to be sent, when being all judged as YES, cancel the transmission that BSR controls cell, the surplus D of current uplink authorization is set to D=D+A, calls assembling and upgrade submodule; Otherwise, directly call assembling and upgrade submodule; Assembling upgrades submodule, for the user data in respective logical channels being assembled as transmission block by MAC layer according to the surplus D of current uplink authorization, the surplus D=D-upgrading current uplink authorization assembles the uplink authorization amount that this transmission block uses, and calls the first judgement submodule; Instruction submodule, for sending by MAC layer instruction physical layer the transmission block assembled.
Preferably, inquiry judging module specifically for: by MAC layer according to 36321 agreements of 3GPP judge whether need send carry data buffer storage state BSR control cell, memory scheduling module is further used for: by MAC layer when receiving the up logic channel configuration information of network side, according to the priority of up logic channel, is saved in logic channel configuration group successively from high to low by the up logic channel ID of correspondence, memory scheduling module specifically for: the up logic channel corresponding to the up logic channel ID preserved in logic channel configuration group by MAC layer scans, the up logic channel ID that this can be dispatched is according to priority, be kept in current activation logic channel array from high to low, wherein, this up logic channel corresponding to up logic channel ID that can dispatch meets the following conditions: the buffer memory of up logic channel is not for empty, up logic channel is not in suspended state, and the B value of up logic channel is greater than 0, wherein, B value is the current maximum amount of data allowing to send of this up logic channel.
Preferably, other control cells are: the control cell that must send except BSR controls cell specified in 36321 agreements of 3GPP.
Beneficial effect of the present invention is as follows:
By the total number of this up logic channel that can dispatch controlling to record in the transmission mark of cell and current activation logic channel array according to BSR, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but just send the whole user data on this up logic channel.Solve in prior art and how to judge that remaining uplink authorization adds that BSR controls the problem that the mandate that takies of cell just can send all up logical channel datas, provides a kind of implementation method, can improve the utilization of UE to limited Internet resources.
Accompanying drawing explanation
Fig. 1 is the signaling process figure that the uplink scheduling of whole system in prior art sends;
Fig. 2 is the flow chart utilizing uplink authorization to send the method for data in the LTE system of the embodiment of the present invention;
Fig. 3 is the flow chart utilizing uplink authorization to send the detailed process of the method for data in the LTE system of the embodiment of the present invention;
Fig. 4 is the structural representation of the terminal equipment based on LTE system of the embodiment of the present invention.
Embodiment
How to judge that remaining uplink authorization adds the mandate that BSR control cell takies to solve in prior art, just can send the problem of all up logical channel datas, the invention provides in a kind of LTE system the method and the terminal equipment that utilize uplink authorization to send data.
Wherein, the embodiment of the present invention introduces the logic channel array (abActiveLogchId) of a current activation, for preserving the logic channel ID that this can be dispatched.When each MAC carries out uplink scheduling, first the logically up logic channel ID configuration array (abConfigLogchId of the priority orders of channel scan for networks configuration successively from high to low, it should be noted that, UE is when receiving the logical channel information of network configuration, in advance by logic channel ID logically channel priority be kept at successively in abConfigLogchId), be saved in successively in array abActiveLogchId by the ID simultaneously meeting the logic channel of following condition: condition 1, the current outgoing data buffer memory of logic channel is not empty; Condition 2, logic channel is in non-suspended state; Condition 3, the B value of logic channel is greater than 0.And record this logic channel being in state of activation that can dispatch and add up to bActiveLogchNum.
MAC, when the framing process carrying out up logic channel, only needs according to the logic channel ID preserved in array abActiveLogchId, the logic channel that dispatch deal is corresponding successively, and does not need other the up logic channel considering configuration.
If when MAC is dispatched to last logic channel, still residue mandate is had to use, then MAC needs to be handled as follows: if before logic channel process, BSR sends mark and is set to be sent, so when assembling the user data on logic channel, need to do following judgement: determine whether that the uplink authorization of current residual is not enough to send the total data on this logic channel, but add the uplink authorization that BSR control cell takies, but just can distribute all customer data on this logic channel.Can determine to specify in 3GPP 36321 agreement by this judgement, uplink authorization of whether this scheduling can be used in sending the data on all up logic channels, but does not have unnecessary mandate to control cell for sending BSR.If the result judged is true, so cancels the transmission that BSR controls cell, preferentially send user data.
Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
Embodiment of the method
According to embodiments of the invention, provide in a kind of LTE system the method utilizing uplink authorization to send data, Fig. 2 is the flow chart utilizing uplink authorization to send the method for data in the LTE system of the embodiment of the present invention, as shown in Figure 2, following process is comprised according to the method utilizing uplink authorization to send data in the LTE system of the embodiment of the present invention:
Step 201, the media access control MAC layer of terminal equipment UE obtains the data buffer storage state of each the up logic channel sending user data, and judge whether that needing to send the BSR carrying data buffer storage state controls cell, when needs send BSR control cell, transmission traffic sign placement BSR being controlled cell is to be sent, and the uplink authorization utilizing network side to distribute sends other control cells, wherein, sending the uplink authorization amount of BSR control required for cell is A;
In step 201, judge whether that needing to send the BSR control cell carrying data buffer storage state specifically comprises: judge whether that needs send the BSR carrying data buffer storage state and control cell according to 36321 agreements of 3GPP.
Preferably, in step 201, preferably, before the data buffer storage state of each up logic channel of the MAC layer acquisition transmission user data of UE, also comprise following process: MAC layer is when receiving the up logic channel configuration information of network side, according to the priority of up logic channel, successively the up logic channel ID of correspondence is saved in logic channel configuration group from high to low;
Based on above-mentioned process, the up logic channel ID that in each up logic channel, this can be dispatched is kept in current activation logic channel array and specifically comprises by MAC layer: the MAC layer up logic channel corresponding to the up logic channel ID preserved in logic channel configuration group scans, the up logic channel ID that this can be dispatched, according to priority, is kept in current activation logic channel array from high to low.
Wherein, this up logic channel corresponding to up logic channel ID that can dispatch meets the following conditions: the buffer memory of up logic channel is for sky, up logic channel is not in suspended state and the B value of up logic channel is greater than 0, wherein, B value is the current maximum amount of data allowing to send of this up logic channel.
In step 201, other control cells are: the control cell that must send except BSR controls cell specified in 36321 agreements of 3GPP.
Step 202, the channel id of the up logic channel that this can be dispatched in each up logic channel is kept in current activation logic channel array by MAC layer, record total number of this up logic channel that can dispatch in current activation logic channel array, and according to the channel id preserved in current activation logic channel array, dispatch corresponding up logic channel successively;
Step 203, the user data of the up logic channel of scheduling is assembled as transmission block according to the uplink authorization amount D of current residual by MAC layer, judge according to total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and BSR controls the transmission of cell when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if be all judged as YES, cancel the transmission that BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled.
In embodiments of the present invention, step 203 specifically comprises following process:
Step 2031, judge whether not execute all up logic channels in current activation logic channel array according to the total number be kept in current activation logic channel array and judge whether the surplus D of current uplink authorization is greater than 0, if be all judged as YES, perform step 2032, otherwise perform step 2035;
Step 2032, determines whether last up logic channel in current activation logic channel array, if the judgment is Yes, performs step 2033, otherwise, perform step 2034;
Step 2033, judge whether the uplink authorization amount C required for user data that this last up logic channel will send meets D<C≤D+A and whether the transmission mark that BSR controls cell is to be sent, when being all judged as YES, cancel the transmission that BSR controls cell, the surplus D of current uplink authorization is set to D=D+A, performs step 2034; Otherwise, directly perform step 2034;
User data assembling in respective logical channels is transmission block according to the surplus D of current uplink authorization by step 2034, and the surplus D=D-upgrading current uplink authorization assembles the uplink authorization amount that this transmission block uses, and performs step 2031;
Step 2035, instruction physical layer sends the transmission block assembled.
Below in conjunction with accompanying drawing, the technique scheme of the embodiment of the present invention is described in detail.
Fig. 3 is the flow chart utilizing uplink authorization to send the detailed process of the method for data in the LTE system of the embodiment of the present invention.
LTE terminal is when receiving the logic channel configuration information of network side, and logically channel priority, is saved in the logic channel ID of correspondence in configuration array abConfigLogchId from high to low successively.When carrying out uplink scheduling at every turn, as shown in Figure 3, step is described as follows the realization flow figure of MAC layer:
Step 301, the MAC layer of UE receives the uplink scheduling instruction of LTE network side transmission;
Step 302, MAC layer inquires about the buffer status of up logic channel, and according to 3GPP 36321 agreement regulation, judges whether that needing to send BSR controls cell.If the judgment is Yes, perform step 303, otherwise, perform step 304;
Step 303, MAC layer assembling BSR controls cell, and it is not to be sent to arrange BSR transmission mark, and record sends the uplink authorization that BSR needs to take;
Step 304, the process (it should be noted that, above-mentioned relevant process has clear and definite regulation in 3GPP 36321 agreement) that other control cells that the needs that MAC layer specifies 3GPP 36321 agreement send are correlated with.
Step 305, MAC layer scans logic channel corresponding to the logic channel ID that preserves in array abConfigLogchId successively, and be saved in the up logic channel ID array abActiveLogchId of current activation by the ID of the logic channel simultaneously meeting following three conditions, and the up logic channel recording current activation adds up to bActiveLogchNum.These three conditions are respectively: 1, and the buffer memory of this logic channel is not empty; 2, this logic channel is not in suspended state; 3, the B value of this logic channel is greater than 0;
Step 306, MAC layer arranges loop parameter i=0;
Step 307, the logic channel that the logic channel ID of MAC layer successively in dispatch deal array abActiveLogchId is corresponding, judge i<bActiveLogchNum and current residual uplink authorization CurGrant>0, if the judgment is Yes, perform step 308, otherwise, perform step 312;
Step 308, whether what MAC layer judged that this processes is the logic channel that the last item activates, that is, i=bActiveLogchNum – 1, if the judgment is Yes, performs step 309, otherwise, perform step 311;
Step 309, MAC layer judges whether to meet following two conditions simultaneously: 1, BSR sends flag set is to be sent, namely has BSR to send; If 2 will send all data on this logic channel, then the uplink authorization >CurGrant needed, and <=(mandate that CurGrant+BSR takies), if the judgment is Yes, perform step 310, otherwise, perform step 311;
Step 310, MAC layer cancels the transmission that BSR controls cell, and the mandate that CurGrant=CurGrant+BSR is taken;
Step 311, MAC layer, according to current mandate CurGrant, assembles the user data on this logic channel, subsequently CurGrant=CurGrant – is assembled mandate expense, the i=i+1 of data on this logic channel, performs step 307;
Step 312, performs the handling process that 3GPP 36321 agreement specifies other necessity, such as, adds necessary filling etc.;
Step 313, framing terminates, and instruction physical layer sends the transmission block of MAC assembling.
As can be seen from above-mentioned process, the logic channel that first the logic channel ID of MAC layer successively in dispatch deal array abActiveLogchId is corresponding, until process all activated up logic channel, or has not had remaining uplink authorization to use.The framing operation of data on each logic channel is processed in two kinds of situation:
A), if the ID of logic channel to be processed is not last the effective ID preserved in array abActiveLogchId, then use the uplink authorization of current residual to assemble the user data on this logic channel.Then the uplink authorization of the actual use of remaining this logic channel of uplink authorization CurGrant=CurGrant – is upgraded.B) otherwise, be handled as follows: if BSR sends flag set be set to be sent, and the uplink authorization required for data that this logic channel will send is greater than remaining uplink authorization CurGrant, and be less than or equal to CurGrant+BSR and control the mandate that takies of cell, then cancel the transmission that BSR controls cell, the uplink authorization taken by BSR is used for sending the user data on this logic channel together with the uplink authorization of current residual.Otherwise process according to the mode of a) middle description.
By means of the technical scheme of the embodiment of the present invention, by the total number of this up logic channel that can dispatch controlling to record in the transmission mark of cell and current activation logic channel array according to BSR, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but just send the whole user data on this up logic channel.Solve in prior art and how to judge that remaining uplink authorization adds that BSR controls the problem that the mandate that takies of cell just can send all up logical channel datas, provides a kind of implementation method, can improve the utilization of UE to limited Internet resources.
Device embodiment
According to embodiments of the invention, provide a kind of terminal equipment based on LTE system, Fig. 4 is the structural representation of the terminal equipment based on LTE system of the embodiment of the present invention, as shown in Figure 4, the terminal equipment based on LTE system according to the embodiment of the present invention comprises: inquiry judging module 40, memory scheduling module 42, assembling judge module 44, be described in detail the modules of the embodiment of the present invention below.
Inquiry judging module 40, for being obtained the data buffer storage state of each the up logic channel sending user data by media access control MAC layer, and judge whether that needing to send the BSR carrying data buffer storage state controls cell, when needs send BSR control cell, transmission traffic sign placement BSR being controlled cell is to be sent, and the uplink authorization utilizing network side to distribute sends other control cells, wherein, sending the uplink authorization amount of BSR control required for cell is A;
Particularly, inquiry judging module 40 specifically for: by MAC layer according to 36321 agreements of 3GPP judge whether need send carry data buffer storage state BSR control cell, memory scheduling module 42 is further used for: by MAC layer when receiving the up logic channel configuration information of network side, according to the priority of up logic channel, is saved in logic channel configuration group successively from high to low by the up logic channel ID of correspondence, memory scheduling module 42 specifically for: the up logic channel corresponding to the up logic channel ID preserved in logic channel configuration group by MAC layer scans, the up logic channel ID that this can be dispatched is according to priority, be kept in current activation logic channel array from high to low, wherein, this up logic channel corresponding to up logic channel ID that can dispatch meets the following conditions: the buffer memory of up logic channel is not for empty, up logic channel is not in suspended state, and the B value of up logic channel is greater than 0, wherein, B value is the current maximum amount of data allowing to send of this up logic channel.
It should be noted that, above-mentioned other control cell and are: the control cell that must send except BSR controls cell specified in 36321 agreements of 3GPP.
Memory scheduling module 42, for the channel id of the up logic channel that this can be dispatched in each up logic channel being kept in current activation logic channel array by MAC layer, record total number of this up logic channel that can dispatch in current activation logic channel array, and according to the channel id preserved in current activation logic channel array, dispatch corresponding up logic channel successively;
Assembling judge module 44, for assembling as transmission block according to the uplink authorization amount D of current residual by the user data of the up logic channel of scheduling by MAC layer, judge according to total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and BSR controls the transmission of cell when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if be all judged as YES, cancel the transmission that BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled.
Particularly, assemble judge module 44 specifically to comprise:
First judges submodule, for judging whether not execute all up logic channels in current activation logic channel array according to the total number be kept in current activation logic channel array by MAC layer and judging whether the surplus D of current uplink authorization is greater than 0, if be all judged as YES, call the second judgement submodule, otherwise call instruction submodule;
Second judges submodule, for being determined whether last up logic channel in current activation logic channel array by MAC layer, if the judgment is Yes, calls the 3rd and judges submodule, otherwise, call assembling and upgrade submodule;
3rd judges submodule, for being judged by MAC layer whether the uplink authorization amount C of the user data that this last up logic channel will send meets D<C≤D+A and whether the transmission mark that BSR controls cell is to be sent, when being all judged as YES, cancel the transmission that BSR controls cell, the surplus D of current uplink authorization is set to D=D+A, calls assembling and upgrade submodule; Otherwise, directly call assembling and upgrade submodule;
Assembling upgrades submodule, for the user data in respective logical channels being assembled as transmission block by MAC layer according to the surplus D of current uplink authorization, the surplus D=D-upgrading current uplink authorization assembles the uplink authorization amount that this transmission block uses, and calls the first judgement submodule;
Instruction submodule, for sending by MAC layer instruction physical layer the transmission block assembled.
Below in conjunction with accompanying drawing, the technique scheme of the embodiment of the present invention is described in detail.
Fig. 3 is the flow chart utilizing uplink authorization to send the detailed process of the method for data in the LTE system of the embodiment of the present invention.
LTE terminal is when receiving the logic channel configuration information of network side, and logically channel priority, is saved in the logic channel ID of correspondence in configuration array abConfigLogchId from high to low successively.When carrying out uplink scheduling at every turn, as shown in Figure 3, step is described as follows the realization flow figure of MAC layer:
Step 301, the MAC layer of UE receives the uplink scheduling instruction of LTE network side transmission;
Step 302, inquiry judging module 40 inquires about the buffer status of up logic channel, and according to 3GPP36321 agreement regulation, judges whether that needing to send BSR controls cell.If the judgment is Yes, perform step 303, otherwise, perform step 304;
Step 303, inquiry judging module 40 is assembled BSR and is controlled cell, and arranges BSR transmission mark, and record sends the uplink authorization that BSR needs to take;
Step 304, the process (it should be noted that, above-mentioned relevant process has clear and definite regulation in 3GPP 36321 agreement) that other control cells that the needs that inquiry judging module 40 pairs of 3GPP 36321 agreements specify send are correlated with.
Step 305, memory scheduling module 42 scans logic channel corresponding to the logic channel ID that preserves in array abConfigLogchId successively, and be saved in the up logic channel ID array abActiveLogchId of current activation by the ID of the logic channel simultaneously meeting following three conditions, and the up logic channel recording current activation adds up to bActiveLogchNum.These three conditions are respectively: 1, and the buffer memory of this logic channel is not empty; 2, this logic channel is not in suspended state; 3, the B value of this logic channel is greater than 0;
Step 306, memory scheduling module 42 arranges loop parameter i=0;
Step 307, the logic channel that the logic channel ID of memory scheduling module 42 successively in dispatch deal array abActiveLogchId is corresponding, assembling judge module 44 judges i<bActiveLogchNum and current residual uplink authorization CurGrant>0, if the judgment is Yes, perform step 308, otherwise, perform step 312;
Step 308, whether what assembling judge module 44 judged that this process is the logic channel that the last item activates, that is, i=bActiveLogchNum – 1, if the judgment is Yes, performs step 309, otherwise, execution step 311;
Step 309, assembling judge module 44 judges whether to meet following two conditions simultaneously: 1, BSR sends flag set is to be sent, namely has BSR to send; If 2 will send all data on this logic channel, then the uplink authorization >CurGrant needed, and <=(mandate that CurGrant+BSR takies), if the judgment is Yes, perform step 310, otherwise, perform step 311;
Step 310, assembling judge module 44 cancels the transmission that BSR controls cell, and the mandate that CurGrant=CurGrant+BSR is taken;
Step 311, assembling judge module 44, according to current mandate CurGrant, is assembled the user data on this logic channel, subsequently CurGrant=CurGrant – is assembled mandate expense, the i=i+1 of data on this logic channel, performs step 307;
Step 312, performs the handling process that 3GPP 36321 agreement specifies other necessity, such as, adds necessary filling etc.;
Step 313, assembling judge module 44 framing terminates, and instruction physical layer sends the transmission block of MAC assembling.
As can be seen from above-mentioned process, the logic channel that first the logic channel ID of MAC layer successively in dispatch deal array abActiveLogchId is corresponding, until process all activated up logic channel, or has not had remaining uplink authorization to use.The framing operation of data on each logic channel is processed in two kinds of situation:
A), if the ID of logic channel to be processed is not last the effective ID preserved in array abActiveLogchId, then use the uplink authorization of current residual to assemble the user data on this logic channel.Then the uplink authorization of the actual use of remaining this logic channel of uplink authorization CurGrant=CurGrant – is upgraded.B) otherwise, be handled as follows: if BSR sends flag set be set to be sent, and the uplink authorization required for data that this logic channel will send is greater than remaining uplink authorization CurGrant, and be less than or equal to CurGrant+BSR and control the mandate that takies of cell, then cancel the transmission that BSR controls cell, the uplink authorization taken by BSR is used for sending the user data on this logic channel together with the uplink authorization of current residual.Otherwise process according to the mode of a) middle description.
By means of the technical scheme of the embodiment of the present invention, by the total number of this up logic channel that can dispatch controlling to record in the transmission mark of cell and current activation logic channel array according to BSR, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that BSR controls the uplink authorization amount A shared by cell, but just send the whole user data on this up logic channel.Solve in prior art and how to judge that remaining uplink authorization adds that BSR controls the problem that the mandate that takies of cell just can send all up logical channel datas, provides a kind of implementation method, can improve the utilization of UE to limited Internet resources.
Although be example object, disclose the preferred embodiments of the present invention, it is also possible for those skilled in the art will recognize various improvement, increase and replacement, and therefore, scope of the present invention should be not limited to above-described embodiment.
Should be noted that, in all parts of controller of the present invention, the function that will realize according to it and logical partitioning has been carried out to parts wherein, but, the present invention is not limited to this, can repartition all parts as required or combine, such as, can be single parts by some component combinations, or some parts can be decomposed into more subassembly further.
All parts embodiment of the present invention with hardware implementing, or can realize with the software module run on one or more processor, or realizes with their combination.It will be understood by those of skill in the art that the some or all functions that microprocessor or digital signal processor (DSP) can be used in practice to realize according to the some or all parts in the controller of the embodiment of the present invention.The present invention can also be embodied as part or all equipment for performing method as described herein or device program (such as, computer program and computer program).Realizing program of the present invention and can store on a computer-readable medium like this, or the form of one or more signal can be had.Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or provides with any other form.
The present invention will be described instead of limit the invention to it should be noted above-described embodiment, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and does not arrange element in the claims or step.Word "a" or "an" before being positioned at element is not got rid of and be there is multiple such element.The present invention can by means of including the hardware of some different elements and realizing by means of the computer of suitably programming.In the unit claim listing some devices, several in these devices can be carry out imbody by same hardware branch.Word first, second and third-class use do not represent any order.Can be title by these word explanations.
Claims (8)
1. utilize uplink authorization to send a method for data in Long Term Evolution LTE system, it is characterized in that, comprising:
Step 1, the media access control MAC layer of terminal equipment UE obtains the data buffer storage state of each the up logic channel sending user data, and judge whether that needing to send the BSR carrying described data buffer storage state controls cell, when needs send described BSR control cell, be to be sent by the transmission traffic sign placement that described BSR controls cell, and the uplink authorization utilizing network side to distribute sends other control cells, wherein, sending the uplink authorization amount of described BSR control required for cell is A;
Step 2, the channel id of this up logic channel that can dispatch in each up logic channel described is kept in current activation logic channel array by described MAC layer, record total number of this up logic channel that can dispatch in described current activation logic channel array, and according to the channel id preserved in described current activation logic channel array, dispatch corresponding up logic channel successively;
Step 3, the user data of the up logic channel of scheduling is assembled as transmission block according to the uplink authorization amount D of current residual by described MAC layer, judge according to described total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and the transmission that described BSR controls cell is when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that described BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if the judgment is Yes, cancel the transmission that described BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled,
Described step 3 specifically comprises:
Step 31, judge whether do not execute all up logic channels in described current activation logic channel array and judge whether the surplus D of current uplink authorization is greater than 0 according to the total number be kept in current activation logic channel array, if be all judged as YES, perform step 32, otherwise perform step 35;
Step 32, judges whether the up logic channel of current scheduling is last up logic channel in described current activation logic channel array, if the judgment is Yes, performs step 33, otherwise, perform step 34;
Step 33, judge whether the uplink authorization amount C required for user data that this last up logic channel will send meets D<C≤D+A and whether the transmission mark that described BSR controls cell is to be sent, when being all judged as YES, cancel the transmission that described BSR controls cell, the surplus D of current uplink authorization is set to D=D+A, performs step 34; Otherwise, directly perform step 34;
User data assembling in respective logical channels is transmission block according to the surplus D of current uplink authorization by step 34, and the surplus D=D-upgrading current uplink authorization assembles the uplink authorization amount that this transmission block uses, and performs step 31;
Step 35, instruction physical layer sends the transmission block assembled.
2. the method for claim 1, is characterized in that, judges whether that needing to send the BSR control cell carrying described data buffer storage state specifically comprises:
Judge whether that needing to send the BSR carrying described data buffer storage state controls cell according to 36321 agreements of 3GPP.
3. the method for claim 1, is characterized in that, before the data buffer storage state of each up logic channel of the MAC layer acquisition transmission user data of described UE, described method also comprises:
The up logic channel ID of correspondence, when receiving the up logic channel configuration information of network side, according to the priority of up logic channel, is saved in logic channel configuration group by described MAC layer from high to low successively;
The up logic channel ID that in each up logic channel described, this can be dispatched is kept in current activation logic channel array and specifically comprises by described MAC layer:
The described MAC layer up logic channel corresponding to the up logic channel ID preserved in described logic channel configuration group scans, and the up logic channel ID that this can be dispatched, according to priority, is kept in current activation logic channel array from high to low.
4. method as claimed in claim 3, it is characterized in that, this up logic channel corresponding to up logic channel ID that can dispatch meets the following conditions:
The buffer memory of described up logic channel is for sky, described up logic channel is not in suspended state and the B value of described up logic channel is greater than 0, and wherein, described B value is the current maximum amount of data allowing to send of this up logic channel.
5. the method for claim 1, is characterized in that, described other control cell and are: the control cell that must send except described BSR controls cell specified in 36321 agreements of 3GPP.
6. based on a terminal equipment for Long Term Evolution LTE system, it is characterized in that, comprising:
Inquiry judging module, for being obtained the data buffer storage state of each the up logic channel sending user data by media access control MAC layer, and judge whether that needing to send the BSR carrying described data buffer storage state controls cell, when needs send described BSR control cell, be to be sent by the transmission traffic sign placement that described BSR controls cell, and the uplink authorization utilizing network side to distribute sends other control cells, wherein, sending the uplink authorization amount of described BSR control required for cell is A;
Memory scheduling module, for the channel id of this up logic channel that can dispatch in each up logic channel described being kept in current activation logic channel array by MAC layer, record total number of this up logic channel that can dispatch in described current activation logic channel array, and according to the channel id preserved in described current activation logic channel array, dispatch corresponding up logic channel successively;
Assembling judge module, for assembling as transmission block according to the uplink authorization amount D of current residual by the user data of the up logic channel of scheduling by MAC layer, judge according to described total number to dispatch as last up logic channel, and still there is remaining uplink authorization to use, and the transmission that described BSR controls cell is when being masked as to be sent, judge whether the uplink authorization amount D of current residual is not enough to send the whole user data on this up logic channel, but add that described BSR controls the uplink authorization amount A shared by cell, but the whole user data on this up logic channel are just sent, if the judgment is Yes, cancel the transmission that described BSR controls cell, the uplink authorization amount D of current residual is set to D=D+A, user data in this up logic channel is assembled as transmission block by the uplink authorization amount D according to current residual, instruction physical layer sends the transmission block assembled,
Described assembling judge module specifically comprises:
First judges submodule, for judging whether do not execute all up logic channels in described current activation logic channel array and judge whether the surplus D of current uplink authorization is greater than 0 according to the total number be kept in current activation logic channel array by MAC layer, if be all judged as YES, call the second judgement submodule, otherwise call instruction submodule;
Second judges submodule, for being judged by MAC layer whether the up logic channel of current scheduling is last up logic channel in described current activation logic channel array, if the judgment is Yes, calls the 3rd and judges submodule, otherwise, call assembling and upgrade submodule;
3rd judges submodule, for being judged by MAC layer whether the uplink authorization amount C of the user data that this last up logic channel will send meets D<C≤D+A and whether the transmission mark that described BSR controls cell is to be sent, when being all judged as YES, cancel the transmission that described BSR controls cell, the surplus D of current uplink authorization is set to D=D+A, calls assembling and upgrade submodule; Otherwise, directly call assembling and upgrade submodule;
Assembling upgrades submodule, for the user data in respective logical channels being assembled as transmission block by MAC layer according to the surplus D of current uplink authorization, the surplus D=D-upgrading current uplink authorization assembles the uplink authorization amount that this transmission block uses, and calls the first judgement submodule;
Instruction submodule, for sending by MAC layer instruction physical layer the transmission block assembled.
7. terminal equipment as claimed in claim 6, is characterized in that,
Described inquiry judging module specifically for: by MAC layer according to 36321 agreements of 3GPP judge whether need send carry described data buffer storage state BSR control cell;
Described memory scheduling module is further used for: by MAC layer when receiving the up logic channel configuration information of network side, according to the priority of up logic channel, is saved in logic channel configuration group successively from high to low by the up logic channel ID of correspondence;
Described memory scheduling module specifically for: the up logic channel corresponding to the up logic channel ID preserved in described logic channel configuration group by MAC layer scans, the up logic channel ID that this can be dispatched is according to priority, be kept in current activation logic channel array from high to low, wherein, this up logic channel corresponding to up logic channel ID that can dispatch meets the following conditions: the buffer memory of described up logic channel is not for empty, described up logic channel is not in suspended state, and the B value of described up logic channel is greater than 0, wherein, described B value is the current maximum amount of data allowing to send of this up logic channel.
8. terminal equipment as claimed in claim 6, is characterized in that, described other control cell and are: the control cell that must send except described BSR controls cell specified in 36321 agreements of 3GPP.
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| CN105744622B (en) * | 2014-12-09 | 2020-05-29 | 上海新岸线电子技术有限公司 | Data sending method and device |
| WO2016119160A1 (en) | 2015-01-29 | 2016-08-04 | 华为技术有限公司 | Data transmission method and device |
| CN111213335A (en) * | 2017-10-11 | 2020-05-29 | 上海诺基亚贝尔股份有限公司 | Unlicensed hybrid automatic repeat request |
| CN111436143B (en) * | 2019-03-28 | 2023-06-06 | 维沃移动通信有限公司 | Uplink authorization change method, information sending method and related devices |
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