CN104618075A - TTI bundling transmission processing method, TTI bundling transmission processing device, network side equipment, and UE - Google Patents
TTI bundling transmission processing method, TTI bundling transmission processing device, network side equipment, and UE Download PDFInfo
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- CN104618075A CN104618075A CN201310535992.3A CN201310535992A CN104618075A CN 104618075 A CN104618075 A CN 104618075A CN 201310535992 A CN201310535992 A CN 201310535992A CN 104618075 A CN104618075 A CN 104618075A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
Abstract
The invention provides a transmission time interval (TTI) bundling transmission processing method, a TTI bundling transmission processing device, a piece of network side equipment, and a piece of user equipment. The method comprises the steps of acquiring a trigger message used for triggering an enhanced TTI bundling transmission mechanism, and sending the trigger message to the user equipment UE. By adopting the technical scheme provided by the invention, the problem that the uplink VoIP service is still the bottleneck of coverage and the desired coverage demand cannot be satisfied due to the constraints of UL links or the maximum transmission power of the UE in the related technologies is solved, and the uplink VoIP service coverage performance is effectively enhanced.
Description
Technical field
The present invention relates to moving communicating field, specifically, relate to method for transmission processing and device, network equipment, the subscriber equipment (UserEquipment is called for short UE) of a kind of transmission time interval (tti) bundle (Transmission TimeInterval bundling is called for short TTI bundling).
Background technology
Long Term Evolution (Long-Term Evolution, being called for short LTE) Radio Access Network of system comprises: the network side (Node B of enhancing, evolved base station (evolved Node B, be called for short eNB)) and UE, wherein, network side is connected with core network or other network, and is communicated with the UE being arranged in the community that this network side is served by wave point.In order to promote the covering of up link (Uplink the is called for short UL) networking telephone (Voice over Internet Protocol is called for short VoIP) business, LTE introduces TTI bundling technology in physical layer.Wherein, TTI bundling refers to that scheduler is the Radio Resource that UE is allocated more than 1 Transmission Time Interval TTI.Basic thought allows UE to use continuous print TTI to send the different redundancy versions (Redundancy Version is called for short RV) of same transmission block continuously, and using 1 transmission attempt of aforesaid operations as this transmission block.Note: because TTI and subframe are normally of equal value, so subsequent content is no longer distinguished both herein.
Known to enable TTI bundling transmits, total UL hybrid automatic repeat-request (Hybrid AutomaticRepeat Request is called for short HARQ) process number is 4; In addition for VoIP business, the arrival interval of its transmission block or cycle are generally 20ms or 20 subframe, and its air interface time delay restriction is set to about 50ms usually.Particularly, as shown in Figure 1, scheduler is by 1 semi-continuous (Semi-Persistent Scheduling in radio frames n-1 subframe 6, being called for short SPS) the up of type authorize, and is equipped with for UE divides sub-frame of uplink resource (i.e. radio frames n+k(k=0,2 that transmission block arrival interval 20ms is the cycle, 4,6 ...) subframe 0 to 3), these periodic sub-frame of uplink resources are used to the transmission attempt first of each VoIP transmission block respectively.Transmission block 0 utilizes HARQ process 0 resource, 1st transmission attempt performs in the scope of radio frames n subframe 0 to 3, if corresponding descending HARQ response is the non-acknowledgement character (Non-Acknowledgement of negative, be called for short NACK) response, 2nd transmission attempt performs in the scope of radio frames n+1 subframe 6 to 9, by that analogy, until respective acknowledgement is the acknowledge character (Acknowledgement of affirmative, be called for short ACK) response, or reaching the number for transmission attempts of maximum 4 times, transmission block 0 stops transmission.Similarly, other transmission block is also utilize appointment HARQ process resource to realize TTI bundling by the way to transmit.
At existing LTE(A) system uplink authorizes Downlink Control Information (Downlink Control Information, being called for short DCI) in form, Modulation and Coding Scheme (Modulation and coding scheme is called for short MCS) field comprises 5 bits (bit), as shown in table 1 below, index I
mCSscope is 0 to the 31(decimal system).Wherein, order of modulation under index 0 to 28 is used to indicate HARQ to transmit first and transmission block size (Transport Block Size, referred to as TBS) index (RV index is fixed as 0), index 29 to 31 is used to the RV index (order of modulation passes identical with TBS index with head) under certain re-transmission of instruction HARQ.But when enable TTI bundling transmits, the major part in above-mentioned 32 (0 to 31) indexes can not be used.Such as, because TTI bundling transmission is mainly used to VoIP business (payload is less), now size is order of modulation (Quadrature Phase Shift Keying (the Quadrature Phase Shift Keying of 2, be called for short QPSK)) and less TBS index be enough, thus index 11 to 28 may can not be used; In addition, size due to TTI bundling is 4 subframes, each time bundling transmission (comprise first pass and retransmit) span be 0 to 3 RV index all can be traversed, thus be specifically designed to the index 29 to 31 that HARQ retransmits the instruction of RV index and also may always can not be used.
Table 1
Existing research and assessment result show: even apply above-mentioned TTI bundling transmission technology, but owing to being limited to the maximum transmission power of UL link or UE, up VoIP business remains the bottleneck of covering, cannot meet the desired covering demand.For how continuing the problem promoting up VoIP service coverage performance, not yet total solution is proposed at present.
For the problems referred to above in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
For in correlation technique, owing to being limited to the maximum transmission power of UL link or UE, up VoIP business remains the bottleneck of covering, the problems such as covering demand cannot be met the desired, the invention provides a kind of method for transmission processing and device, network equipment, subscriber equipment of transmission time interval (tti) bundle, at least to solve the problem.
According to an aspect of the present invention, providing a kind of method for transmission processing of transmission time interval (tti) bundle, comprising: obtaining for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened; Above-mentioned Trigger message is sent to UE.
Preferably, above-mentioned trigger message comprises: uply authorize the field of the MCS in DCI format.
Preferably, above-mentioned trigger message also comprises: up combination of authorizing MCS field in DCI format and Resourse Distribute (ResourceAllocation, referred to as RA) field.
Preferably, said method comprises: the decimal system index represented when above-mentioned MCS field equals minimum value, and when the decimal system index that above-mentioned RA field represents equals maximum, the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing is triggered.
Preferably, the transmission mechanism of above-mentioned enhancing comprise following one of at least: the hybrid automatic repeat-request HARQ operation of enhancing, HARQ process resource use process.
Preferably, the HARQ operation of above-mentioned enhancing comprises: arranging HARQ loopback time delay (Round-Trip Time is called for short RTT) is 12ms; And/or the process of using of above-mentioned HARQ process resource comprises one of following: continue the process of using of HARQ process resource, the process of using of semi-continuous HARQ process resource, dynamically HARQ process resource use process.
Preferably, the process of using of above-mentioned lasting HARQ process resource comprises: for all continuous print networking telephone VoIP transmission blocks, and the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first used by above-mentioned VoIP transmission block; The process of using of above-mentioned semi-continuous HARQ process resource comprises: at least 1 continuous print VoIP transmission block, and the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first used by above-mentioned VoIP transmission block; The process of using of above-mentioned dynamic HARQ process resource comprises: for 1 VoIP transmission block, be positioned at transmission attempt HARQ process resource or X the HARQ process resource retransmitted after trial HARQ process resource first to be used by above-mentioned VoIP transmission block, wherein, X is from one of following value: 1,2,3.
Preferably, when utilize above-mentioned MCS field trigger above-mentioned semi-continuous HARQ process resource use process time, above-mentioned semi-continuous HARQ process resource uses the continuous number of transport blocks of process lasts, is determined: determine according to the index that above-mentioned MCS field represents by one of following mode; Preset.
Preferably, when utilize above-mentioned MCS field trigger above-mentioned lasting HARQ process resource use process time, above-mentioned MCS field also uses process for what close above-mentioned lasting HARQ process resource.
Preferably, when adopt the HARQ operation of above-mentioned enhancing, the process of using of above-mentioned lasting HARQ process resource and above-mentioned dynamic HARQ process resource use process, and be following a period of time at the decimal system index that above-mentioned MCS field represents, represent that the transmission time interval (tti) bundle transmission mechanism strengthened is triggered: 29,30,31; When adopt above-mentioned semi-continuous HARQ process resource use process, and when the decimal system index that above-mentioned MCS field represents is following value, represent that the transmission time interval (tti) bundle transmission mechanism strengthened is triggered: the value that index value is greater than 10.
Preferably, process is used for the HARQ operation of above-mentioned enhancing, the process of using of above-mentioned lasting HARQ process resource and above-mentioned semi-continuous HARQ process resource, 4th subframe of above-mentioned MCS field before transmission block 0 due in is uploaded defeated, wherein, above-mentioned transmission block 0 is the 1st transmission block of the transmission time interval (tti) bundle transmission mechanism of enable above-mentioned enhancing; Process is used for above-mentioned dynamic HARQ process resource, the 1st subframe that above-mentioned MCS field attempts HARQ process resource in the transmission attempt first of given transmission block or re-transmission is uploaded defeated, wherein, above-mentioned given transmission block is the transmission block of the transmission time interval (tti) bundle transmission mechanism of enable above-mentioned enhancing.
According to another aspect of the present invention, provide a kind of method for transmission processing of transmission time interval (tti) bundle, comprising: user equipment (UE) receives the trigger message for triggering the transmission time interval (tti) bundle transmission mechanism adopting enhancing from network equipment; Under the triggering of above-mentioned trigger message, above-mentioned UE adopts the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing to carry out uplink.
Preferably, above-mentioned trigger message comprises: uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
Preferably, above-mentioned trigger message also comprises: up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
Preferably, the decimal system index represented when above-mentioned MCS field equals minimum value, and when the decimal system index that above-mentioned RA field represents equals maximum, above-mentioned enhancing transmission time interval (tti) bundle transmission mechanism is triggered.
Preferably, the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing comprise following one of at least: the hybrid automatic repeat-request HARQ operation of enhancing, HARQ process resource use process.
Preferably, the HARQ operation of above-mentioned enhancing comprises: arranging HARQ RTT is 12ms; And/or the process of using of above-mentioned HARQ process resource comprises one of following: continue the process of using of HARQ process resource, the process of using of semi-continuous HARQ process resource, dynamically HARQ process resource use process.
According to a further aspect of the invention, provide a kind of transmission processing device of transmission time interval (tti) bundle, be applied to network equipment, comprising: acquisition module, for obtaining for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened; Sending module, for sending above-mentioned Trigger message to user equipment (UE).
Preferably, above-mentioned acquisition module, for obtaining above-mentioned trigger message when above-mentioned trigger message comprises following content: uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
Preferably, above-mentioned acquisition module, also for obtaining above-mentioned trigger message when above-mentioned trigger message comprises following content: up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
Preferably, above-mentioned acquisition module, for comprise at the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing following at least for the moment, obtain above-mentioned trigger message: the hybrid automatic repeat-request HARQ operation of enhancing, HARQ process resource use process.
According to a further aspect of the invention, additionally provide a kind of transmission processing device of transmission time interval (tti) bundle, be applied to user terminal UE, comprise: receiver module, for receiving the trigger message for triggering the transmission time interval (tti) bundle transmission mechanism adopting enhancing from network equipment; Transport module, under the triggering of above-mentioned trigger message, adopts the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing to carry out uplink.
Preferably, above-mentioned receiver module, for when above-mentioned trigger message comprises following information, receives above-mentioned trigger message: uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
Preferably, above-mentioned receiver module, also for receiving above-mentioned trigger message when above-mentioned trigger message comprises following content: up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
Preferably, above-mentioned receiver module, for comprise at the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing following one of at least, receive above-mentioned trigger message: the hybrid automatic repeat-request HARQ operation of enhancing, HARQ process resource use process.
According to a further aspect of the invention, additionally provide a kind of network equipment, comprise the transmission processing device of above arbitrary transmission time interval (tti) bundle.
According to a further aspect of the invention, additionally provide a kind of user equipment (UE), comprise the transmission processing device of above arbitrary transmission time interval (tti) bundle.
By the present invention, adopt and obtain for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened; The technical scheme of described Trigger message is sent to UE, solve in correlation technique, owing to being limited to the maximum transmission power of UL link or UE, up VoIP business remains the bottleneck of covering, the problem of covering demand cannot be met the desired, thus effectively enhance up VoIP service coverage performance.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the transmission time interval (tti) bundle transmission principle schematic diagram according to correlation technique;
Fig. 2 is the flow chart of the method for transmission processing of transmission time interval (tti) bundle according to the embodiment of the present invention;
Fig. 3 uply authorizes the schematic diagram that MCS field in DCI format triggers the HARQ operation strengthened according to utilizing of the embodiment of the present invention;
Fig. 4 is the schematic diagram of the process of using of activation lasts HARQ process resource according to the preferred embodiment of the invention;
Fig. 5 be trigger semi-continuous HARQ process resource according to the preferred embodiment of the invention use process, and determine the schematic diagram of the number of transport blocks of this process lasts;
Fig. 6 is the schematic diagram one of the process of using triggering dynamic HARQ process resource according to the preferred embodiment of the invention;
Fig. 7 is the schematic diagram two of the process of using triggering dynamic HARQ process resource according to the preferred embodiment of the invention;
Fig. 8 is another flow chart of the method for transmission processing of transmission time interval (tti) bundle according to the embodiment of the present invention;
Fig. 9 is the structured flowchart of the transmission processing device of transmission time interval (tti) bundle according to the embodiment of the present invention;
Figure 10 is another structured flowchart of the transmission processing device of transmission time interval (tti) bundle according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 2 is the flow chart of the method for transmission processing of transmission time interval (tti) bundle according to the embodiment of the present invention.As shown in Figure 2, the method comprises: step S202 to step S204,
S202: obtain for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened;
In this step, above-mentioned trigger message comprises: uply authorize the field of the MCS in DCI format; Up combination of authorizing MCS field in DCI format and RA field.Such as, the decimal system index represented when above-mentioned MCS field equals minimum value 0, and when the decimal system index that RA field represents equals maximum, above-mentioned enhancing transmission time interval (tti) bundle transmission mechanism is triggered.
The transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing comprise following one of at least: the HARQ operation of enhancing, HARQ process resource use process.
S204: send above-mentioned Trigger message to UE.
By the execution of above-mentioned steps, when getting for triggering the up MCS field of authorizing in DCI format adopting the transmission time interval (tti) bundle transmission mechanism (the hybrid automatic repeat-request HARQ operation of enhancing or HARQ process resource use process) strengthened, send above-mentioned trigger message to user immediately.Adopt such technical scheme, can effectively solve owing to being limited to the maximum transmission power of UL link or UE in prior art, up VoIP business remains the bottleneck of covering, cannot meet the desired the problem of covering demand.Effectively enhance up VoIP service coverage performance, and avoid the considerable influence to upper-layer protocol or specification.
In the present embodiment, the HARQ operation of above-mentioned enhancing comprises: arranging HARQ RTT is 12ms.
The further improvement of the embodiment of the present invention to technique scheme is, the process of using of above-mentioned HARQ process resource comprises one of following: continue the process of using of HARQ process resource, the process of using of semi-continuous HARQ process resource and dynamically HARQ process resource use process.Wherein, continue the process of using of HARQ process resource and can show as following way of realization: for all continuous print VoIP transmission blocks, the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first used by above-mentioned VoIP transmission block; The process of using of semi-continuous HARQ process resource can show as following way of realization: at least 1 continuous print VoIP transmission block, and the 1st the above-mentioned HARQ process resource be positioned at after transmission attempt HARQ process resource is first used by VoIP transmission block; The process of using of dynamic HARQ process resource can show as following way of realization: for 1 VoIP transmission block, be positioned at transmission attempt HARQ process resource or X the HARQ process resource retransmitted after trial HARQ process resource first to be used by above-mentioned VoIP transmission block, wherein, above-mentioned X is from one of following value: 1,2,3.
It should be noted that, above-mentioned re-transmission is attempted referring to 1 transmission attempt in other transmission attempts all in actual mechanical process except transmission attempt first.
Under following two kinds of situations, represent that the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing is triggered:
(1) when adopt the HARQ operation of above-mentioned enhancing, the process of using of above-mentioned lasting HARQ process resource and above-mentioned dynamic HARQ process resource use process, and the decimal system index that above-mentioned MCS field represents be following for the moment: 29,30,31;
(2) when adopt above-mentioned semi-continuous HARQ process resource use process, and when the decimal system index that above-mentioned MCS field represents is following value: the value that index value is greater than 10.
The further improvement of the present embodiment to technique scheme is, when utilize above-mentioned MCS field trigger semi-continuous HARQ process resource use process time, above-mentioned MCS field is also for determining that semi-continuous HARQ process resource uses the continuous number of transport blocks of process lasts, except the mode of the above-mentioned continuous number of transport blocks of determination provided except this enforcement, use process for above-mentioned semi-continuous HARQ process resource, its continuous number of transport blocks continued also can determine the number that above-mentioned continuous transmission is fast by the mode preset.
The effect of the above-mentioned MCS field in the present embodiment is not limited to above-mentioned functions.Above-mentioned MCS field also for when utilize described MCS field trigger described lasting HARQ process resource use process time, described MCS field also uses process for what close described lasting HARQ process resource.Such as, when the decimal system index that above-mentioned MCS field represents is not equal to 31, represent that the process of using of described lasting HARQ process resource is closed.
The further improvement of the present embodiment to technique scheme is, process is used for the HARQ operation of above-mentioned enhancing, the process of using of above-mentioned lasting HARQ process resource and above-mentioned semi-continuous HARQ process resource, 4th subframe of above-mentioned MCS field before transmission block 0 due in is uploaded defeated, wherein, above-mentioned transmission block 0 is the 1st transmission block of the transmission time interval (tti) bundle transmission mechanism of enable enhancing;
Process is used for above-mentioned dynamic HARQ process resource, the 1st subframe that above-mentioned MCS field attempts HARQ process resource in the transmission attempt first of given transmission block or re-transmission is uploaded defeated, wherein, above-mentioned given transmission block is the transmission block of the transmission time interval (tti) bundle transmission mechanism of enable enhancing.
In order to understand above-described embodiment better, describe in detail below in conjunction with preferred embodiment.It should be noted that, the scheme of following preferred embodiment does not form limitation of the invention.Particularly:
Fig. 3 uply authorizes the schematic diagram that MCS field in DCI format triggers the HARQ operation strengthened according to utilizing of the embodiment of the present invention.Note: pattern in accompanying drawing ● represent up normally authorizing, pattern ▲ represent that the up of HARQ operation for triggering enhancing is authorized.As shown in Figure 3:
When enable TTI bundling transmits, up MCS field of authorizing in DCI format is utilized to trigger the HARQ operation strengthened.If the decimal system index I that such as above-mentioned MCS field represents
mCSequal 31, represent that the HARQ operation strengthened is triggered or enable.Wherein, above-mentioned RTT refers to from a transmission attempt to the duration time interval that transmission attempt next time starts.
Particularly, up authorizing for triggering the HARQ operation of enhancing is launched in radio frames n-1 subframe 6, wherein, radio frames n-1 subframe 6 is the 4th subframes be positioned at before transmission block 0 due in, and transmission block 0 is the 1st transmission block of the HARQ operation of enable enhancing.When the HARQ operation strengthened, under the time delay restriction of about 50ms, transmission block 0 can perform 5 transmission attempts at the most, occupies 20 sub-frame resources.Similarly, other transmission block l(>0) 5 transmission attempts can be performed equally at the most.
Fig. 4 is the schematic diagram of the process of using of activation lasts HARQ process resource according to the preferred embodiment of the invention.As shown in Figure 4, note: pattern in accompanying drawing ● represent up normally authorizing, pattern ▲ expression is used the up of process for activation lasts HATQ process resource and is authorized.
In enable TTI bundling transmission situation, utilize up authorize MCS field activation lasts HARQ process resource in DCI format use process.Wherein, the process of using of above-mentioned lasting HARQ process resource refers to: for all continuous print VoIP transmission blocks, and the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first transmitted block and uses.If the decimal system index I that such as above-mentioned MCS field represents
mCSequal 31, represent that the process of using of above-mentioned lasting HARQ process resource is triggered.
Particularly, as shown in Figure 4, up the authorizing of using process for activation lasts HARQ process resource is launched in radio frames n-1 subframe 6, wherein, radio frames n-1 subframe 6 is the 4th subframes before transmission block 0 due in, and transmission block 0 is the 1st transmission block that enable lasting HARQ process resource is used.Under normal circumstances, transmission block 0 can not use HARQ process 1 resource, but when enable lasting HARQ process resource uses process, transmission block 0 is except using HARQ process 0 resource, also can use and be positioned at HARQ process 1 resource of transmission block 0 first after transmission attempt HARQ process 0 resource, namely HARQ process 1 resource is transmitted block 0 and uses.Similarly, HARQ process 2 resource is transmitted block 1 and uses, and HARQ process 3 resource is transmitted block 2 and uses, and HARQ process 0 resource is transmitted block 3 and uses, by that analogy.
In addition, when lasting HARQ process resource is used, can utilize equally up authorize that MCS field in DCI format closes above-mentioned lasting HARQ process resource use process.If the index I that such as above-mentioned MCS field represents
mCSbe not equal to 31, represent that the process of using of above-mentioned lasting HARQ process resource is closed.Fig. 5 be trigger semi-continuous HARQ process resource according to the preferred embodiment of the invention use process, and determine the schematic diagram of the number of transport blocks that said process continues.As shown in Figure 5, note: pattern in accompanying drawing ● represent up normally authorizing, pattern ▲ represent is used the up of process authorize for being triggered semi-continuous HATQ process resource.
When enable TTI bundling transmits, what utilize up MCS field of authorizing in DCI format to trigger semi-continuous HARQ process resource uses process, and determines the continuous number of transport blocks that said process continues.Wherein, above-mentioned lasting continuous transmission block can also adopt the mode preset.The above-mentioned semi-continuous HARQ process resource process of using refers to: at least 1 continuous VoIP transmission block, and the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first transmitted block and uses.If the decimal system index I that such as above-mentioned MCS field represents
mCSbe greater than 10, represent that the process of using of semi-continuous HARQ process resource is triggered, and above-mentioned lasting number of transport blocks is by concrete decimal system index I
mCSvalue instruction (as shown in table 2 below).With the index I that above-mentioned MCS field represents
mCSequal 13 for example, represent that the semi-continuous HARQ process resource process of using is triggered, and the continuous number of transport blocks continued is 3.
Table 2
Particularly, as shown in Figure 5, up the authorizing of using for enable semi-continuous HARQ process resource is launched in radio frames n-1 subframe 6, wherein, radio frames n-1 subframe 6 is the 4th subframes before transmission block 0 due in, and transmission block 0 is the 1st in continuous 3 transmission blocks of using of enable semi-continuous HARQ process resource.Under normal circumstances, transmission block 0 can not use HARQ process 1 resource, but when enable semi-continuous HARQ process resource uses process, transmission block 0 also can use and be positioned at HARQ process 1 resource of transmission block 0 first after transmission attempt HARQ process 0 resource except using HARQ process 0 resource, and namely HARQ process 1 resource is transmitted block 0 and uses.Similarly, HARQ process 2 resource is transmitted block 1 and uses, and HARQ process 3 resource is transmitted block 2 and uses.The continuous number of transport blocks of using process lasts due to above-mentioned semi-continuous HARQ process resource is set to 3, and HARQ process 0 resource is no longer transmitted block 3 and uses.
When trigger be dynamic HARQ process resource use process time, there are following two kinds of situations:
When enable TTI bundling transmits, what utilize up MCS field of authorizing in DCI format to trigger dynamic HARQ process resource uses process.Wherein, the above-mentioned dynamic HARQ process resource process of using refers to: for 1 VoIP transmission block, is positioned at transmission attempt HARQ process resource first or retransmits the X(=1 attempted after HARQ process resource, 2, or 3) individual HARQ process resource used by this transmission block.Such as, if the decimal system index I that represents of above-mentioned MCS field
mCSbe greater than 28, represent that the dynamic HARQ process resource process of using is triggered, and the value of above-mentioned variable X be by concrete index I
mCSvalue instruction (as shown in table 3 below).With index I
mCSvalue equals 29 for example, represents that the dynamic HARQ process resource process of using is enabled and the value of X is 1.
Table 3
Fig. 6 is the schematic diagram one of the process of using triggering dynamic HARQ process resource according to the preferred embodiment of the invention.As shown in Figure 6, note: pattern in accompanying drawing ● represent up normally authorizing, pattern ▲ represent is used the up of process authorize for being triggered dynamic HATQ process resource.
Particularly, be launched the 1st subframe (radio frames n subframe 0) of transmission block 0 transmission attempt first for up the authorizing of using of triggering dynamic HARQ process resource, and imagine the index I that MCS field represents
mCSvalue be 29, its represents that 1st the HARQ process resource (HARQ process 1 resource) of transmission block 0 first after transmission attempt HARQ process resource is transmitted block 0 and uses.Similarly, 2nd the HARQ process resource (HARQ process 0 resource) of transmission block 2 first after transmission attempt HARQ process resource is transmitted block 2 and uses, and 1st the HARQ process resource (HARQ process 0 resource) of transmission block 3 first after transmission attempt HARQ process resource is transmitted block 3 and uses.
Fig. 7 is the schematic diagram two of the process of using triggering dynamic HARQ process resource according to the preferred embodiment of the invention.As shown in Figure 7, note: pattern in accompanying drawing ● represent up normally authorizing, pattern ▲ represent is used the up of process authorize for being triggered dynamic HATQ process resource.
Particularly, as shown in Figure 7, up the authorizing of using for triggering dynamic HARQ process resource is launched the 1st subframe (radio frames n+5 subframe 6) of transmission block 2 the 2nd transmission attempt (be equivalent to retransmit for the 1st time and attempt), and the value imagining the index IMCS that MCS field represents is 30, the 2nd the HARQ process resource (HARQ process 0 resource) after its expression transmission block 2 the 2nd transmission attempt HARQ process resource is transmitted block 2 and uses.
Fig. 8 is another flow chart of the method for transmission processing of transmission time interval (tti) bundle according to the embodiment of the present invention.As shown in Figure 8, the method, relative to embodiment illustrated in fig. 2, is described from UE side, specifically comprises step S802 to step S804:
S802:UE receives the trigger message for triggering the transmission time interval (tti) bundle transmission mechanism adopting enhancing from network equipment;
In this step, above-mentioned trigger message comprises: uply authorize the field of the MCS in DCI format; Up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.Such as, the decimal system index represented when MCS field described above equals minimum value 0, and when the decimal system index that RA field represents equals maximum, above-mentioned enhancing transmission time interval (tti) bundle transmission mechanism is triggered; The transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing comprise following one of at least: the hybrid automatic repeat-request HARQ operation of enhancing, HARQ process resource use process.
S804: under the triggering of above-mentioned trigger message, above-mentioned UE adopt the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing to carry out uplink.
By the execution of above-mentioned steps, when UE receives for triggering the up MCS field of authorizing in DCI format adopting the transmission time interval (tti) bundle transmission mechanism (HARQ operation of enhancing or HARQ process resource use process) strengthened, UE adopts the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing to carry out uplink.Adopt such technical scheme, can effectively solve owing to being limited to the maximum transmission power of UL link or UE in prior art, up VoIP business remains the bottleneck of covering, cannot meet the desired the problem of covering demand.Effectively enhance up VoIP service coverage performance, and avoid the considerable influence to upper-layer protocol or specification.
In the present embodiment, the HARQ operation of above-mentioned enhancing comprises: arranging HARQRTT is 12ms.
The further improvement of the present invention to technique scheme is, the process of using of above-mentioned HARQ process resource comprises one of following: continue the process of using of HARQ process resource, the process of using of semi-continuous HARQ process resource and dynamically HARQ process resource use process.
Additionally provide a kind of method for transmission processing device of transmission time interval (tti) bundle in the present embodiment, this application of installation is in network equipment, for realizing above-described embodiment and preferred implementation, carrying out repeating no more of explanation, below the module related in this device being described.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.Fig. 9 is the structured flowchart of the transmission processing device of transmission time interval (tti) bundle according to the embodiment of the present invention.As shown in Figure 9, this device comprises:
Acquisition module 90, for obtaining for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened;
Wherein, acquisition module 90 comprises at trigger message: uply authorize the field of the Modulation and Coding Scheme MCS in DCI format, and the transmission time interval (tti) bundle transmission mechanism strengthened comprise following one of at least: the HARQ operation of enhancing, HARQ process resource use process when, acquisition module 90 obtains above-mentioned trigger message.Wherein, above-mentioned trigger message can also be up combination of authorizing MCS field in DCI format and RA field, such as, the decimal system index represented when MCS field described above equals minimum value 0, and when the decimal system index that RA field represents equals maximum, above-mentioned enhancing transmission time interval (tti) bundle transmission mechanism is triggered;
Sending module 92, is connected with acquisition module 90, for sending above-mentioned Trigger message to UE.
By the comprehensive function of above-mentioned modules, when getting for triggering the up MCS field of authorizing in DCI format adopting the transmission time interval (tti) bundle transmission mechanism (HARQ operation of enhancing or HARQ process resource use process) strengthened, network equipment sends above-mentioned trigger message to user equipment (UE) immediately.Adopt such technical scheme, can effectively solve owing to being limited to the maximum transmission power of UL link or UE in prior art, up VoIP business remains the bottleneck of covering, cannot meet the desired the problem of covering demand.Add VoIP transmission block 50ms time delay restriction under received energy or subframe utilance, finally improve the covering performance of up VoIP business further, and avoid the considerable influence to upper-layer protocol or specification.
Figure 10 is another structured flowchart of the transmission processing device of transmission time interval (tti) bundle according to the embodiment of the present invention.As shown in Figure 10, this application of installation, in UE, comprising:
Receiver module 100, for receiving the trigger message for triggering the transmission time interval (tti) bundle transmission mechanism adopting enhancing from network equipment;
Wherein, receiver module 100 comprises at trigger message: uply authorize the field of the MCS in DCI format, and the transmission time interval (tti) bundle transmission mechanism strengthened comprise following one of at least: the hybrid automatic repeat-request HARQ operation of enhancing, HARQ process resource use process when, receiver module 100 obtains above-mentioned trigger message.Wherein, above-mentioned trigger message can also be the combination of the row MCS field of authorizing in DCI format and RA field, such as, the decimal system index represented when MCS field described above equals minimum value 0, and when the decimal system index that RA field represents equals maximum, above-mentioned enhancing transmission time interval (tti) bundle transmission mechanism is triggered;
Transport module 102, is connected to receiver module 100, under the triggering of above-mentioned trigger message, adopts the transmission time interval (tti) bundle transmission mechanism of above-mentioned enhancing to carry out uplink.
It should be noted that, the embodiment of the present invention can be applicable to Frequency Division Duplexing (FDD) (Frequency Division Duplex, be called for short FDD) enhancing TTI bundling process under system, also the enhancing TTI bundling process under time division duplex (Time Division Duplex is called for short TDD) system can be applied to.
In sum, the embodiment of the present invention achieves following beneficial effect: based on the above embodiment of the present invention, solves in correlation technique, owing to being limited to the maximum transmission power of UL link or UE, up VoIP business remains the bottleneck of covering, cannot meet the desired the problem of covering demand.Effectively enhance up VoIP service coverage performance: add VoIP transmission block 50ms time delay restriction under received energy or subframe utilance, the final covering performance improving up VoIP business further, and avoid the considerable influence to upper-layer protocol or specification.
Up cyclic redundancy check (CRC) (the Cyclic Redundancy Check authorizing DCI format in existing LTE system, being called for short CRC) the field utilization network side Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell-specific Radio NetworkTemporal Identity, be called for short C-RNTI) of distributing to UE carries out scrambling.This C-RNTI comprises semi-continuous SPS C-RNTI and dynamic C-RNTI.Being similar to prior art, in the embodiment of the present invention, described SPS C-RNTI or dynamic C-RNTI can being utilized equally to carry out scrambling for triggering the up crc field of authorizing DCI format strengthening TTI bundling transmission mechanism.
In another embodiment, additionally provide a kind of software, this software is for performing the technical scheme described in above-described embodiment and preferred implementation.
In another embodiment, additionally provide a kind of storage medium, store above-mentioned software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (27)
1. a method for transmission processing for transmission time interval (tti) bundle, is characterized in that, comprising:
Obtain for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened;
Described Trigger message is sent to user equipment (UE).
2. method according to claim 1, is characterized in that, described trigger message comprises:
Uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
3. method according to claim 1, is characterized in that, described trigger message also comprises:
Up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
4. method according to claim 3, is characterized in that, described method comprises:
The decimal system index represented when described MCS field equals minimum value, and when the decimal system index that described RA field represents equals maximum, the transmission time interval (tti) bundle transmission mechanism of described enhancing is triggered.
5. the method according to any one of Claims 1-4, is characterized in that, the transmission mechanism of described enhancing comprise following one of at least:
Strengthen hybrid automatic repeat-request HARQ operation, HARQ process resource use process.
6. method according to claim 5, is characterized in that,
The HARQ operation of described enhancing comprises: arranging HARQ loopback time delay RTT is 12ms; And/or
The process of using of described HARQ process resource comprises one of following: continue the process of using of HARQ process resource, the process of using of semi-continuous HARQ process resource, dynamically HARQ process resource use process.
7. method according to claim 6, is characterized in that,
The process of using of described lasting HARQ process resource comprises: for all continuous print networking telephone VoIP transmission blocks, and the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first used by described VoIP transmission block;
The process of using of described semi-continuous HARQ process resource comprises: at least 1 continuous print VoIP transmission block, and the 1st the HARQ process resource be positioned at after transmission attempt HARQ process resource is first used by described VoIP transmission block;
The process of using of described dynamic HARQ process resource comprises: for 1 VoIP transmission block, be positioned at transmission attempt HARQ process resource or X the HARQ process resource retransmitted after trial HARQ process resource first to be used by described VoIP transmission block, wherein, X is from one of following value: 1,2,3.
8. method according to claim 6, it is characterized in that, when utilize described MCS field trigger described semi-continuous HARQ process resource use process time, described semi-continuous HARQ process resource uses the continuous number of transport blocks of process lasts, is determined by one of following mode:
Determine according to the index that described MCS field represents; Preset.
9. method according to claim 6, is characterized in that, also comprises:
When utilize described MCS field trigger described lasting HARQ process resource use process time, described MCS field also uses process for what close described lasting HARQ process resource.
10. method according to claim 6, is characterized in that,
When adopt the HARQ operation of described enhancing, the process of using of described lasting HARQ process resource and described dynamic HARQ process resource use process, and be following a period of time at the decimal system index that described MCS field represents, represent that the transmission time interval (tti) bundle transmission mechanism strengthened is triggered: 29,30,31;
When adopt described semi-continuous HARQ process resource use process, and when the decimal system index that described MCS field represents is following value, represent that the transmission time interval (tti) bundle transmission mechanism strengthened is triggered: the value that index value is greater than 10.
11. methods according to claim 6, is characterized in that,
Process is used for the HARQ operation of described enhancing, the process of using of described lasting HARQ process resource and described semi-continuous HARQ process resource, 4th subframe of described MCS field before transmission block 0 due in is uploaded defeated, wherein, described transmission block 0 is the 1st transmission block of the transmission time interval (tti) bundle transmission mechanism of enable described enhancing;
Process is used for described dynamic HARQ process resource, the 1st subframe that described MCS field attempts HARQ process resource in the transmission attempt first of given transmission block or re-transmission is uploaded defeated, wherein, described given transmission block is the transmission block of the transmission time interval (tti) bundle transmission mechanism of enable described enhancing.
The method for transmission processing of 12. 1 kinds of transmission time interval (tti) bundles, is characterized in that, comprising:
User equipment (UE) receives the trigger message for triggering the transmission time interval (tti) bundle transmission mechanism adopting enhancing from network equipment;
Under the triggering of described trigger message, described UE adopts the transmission time interval (tti) bundle transmission mechanism of described enhancing to carry out uplink.
13. methods according to claim 12, is characterized in that, described trigger message comprises:
Uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
14. methods according to claim 12, is characterized in that, described trigger message also comprises:
Up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
15. methods according to claim 14, is characterized in that,
The decimal system index represented when described MCS field equals minimum value, and when the decimal system index that described RA field represents equals maximum, described enhancing transmission time interval (tti) bundle transmission mechanism is triggered.
16., according to claim 12 to the method described in 15 any one, is characterized in that, the transmission time interval (tti) bundle transmission mechanism of described enhancing comprise following one of at least:
Strengthen hybrid automatic repeat-request HARQ operation, HARQ process resource use process.
17. methods according to claim 16, is characterized in that,
The HARQ operation of described enhancing comprises: arranging HARQ loopback time delay RTT is 12ms; And/or
The process of using of described HARQ process resource comprises one of following: continue the process of using of HARQ process resource, the process of using of semi-continuous HARQ process resource, dynamically HARQ process resource use process.
The transmission processing device of 18. 1 kinds of transmission time interval (tti) bundles, is applied to network equipment, it is characterized in that, comprising:
Acquisition module, for obtaining for triggering the trigger message adopting the transmission time interval (tti) bundle transmission mechanism strengthened;
Sending module, for sending described Trigger message to user equipment (UE).
19. devices according to claim 18, is characterized in that, described acquisition module, for obtaining described trigger message when described trigger message comprises following content:
Uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
20. devices according to claim 18, is characterized in that, described acquisition module, also for obtaining described trigger message when described trigger message comprises following content:
Up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
21., according to claim 18 to the device described in 20 any one, is characterized in that, described acquisition module, for comprising following at least a period of time at the transmission time interval (tti) bundle transmission mechanism of described enhancing, obtain described trigger message:
Strengthen hybrid automatic repeat-request HARQ operation, HARQ process resource use process.
The transmission processing device of 22. 1 kinds of transmission time interval (tti) bundles, is applied to user terminal UE, it is characterized in that, comprising:
Receiver module, for receiving the trigger message for triggering the transmission time interval (tti) bundle transmission mechanism adopting enhancing from network equipment;
Transport module, under the triggering of described trigger message, adopts the transmission time interval (tti) bundle transmission mechanism of described enhancing to carry out uplink.
23. devices according to claim 22, is characterized in that, described receiver module, for when described trigger message comprises following information, receive described trigger message:
Uply authorize the field of the Modulation and Coding Scheme MCS in Downlink Control Information DCI format.
24. devices according to claim 22, is characterized in that, described receiver module, also for receiving described trigger message when described trigger message comprises following content:
Up combination of authorizing MCS field in DCI format and Resourse Distribute RA field.
25., according to the device described in claim 22 to 24, is characterized in that, described receiver module, for comprise at the transmission time interval (tti) bundle transmission mechanism of described enhancing following one of at least, receive described trigger message:
Strengthen hybrid automatic repeat-request HARQ operation, HARQ process resource use process.
26. 1 kinds of network equipments, is characterized in that, comprising: the device described in any one of claim 18-21.
27. 1 kinds of user equipment (UE)s, is characterized in that, comprising: the device described in any one of claim 22-25.
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| CN201310535992.3A CN104618075B (en) | 2013-11-01 | 2013-11-01 | Method for transmission processing and device, network side equipment, the UE of TTI boundling |
| PCT/CN2014/079527 WO2015062276A1 (en) | 2013-11-01 | 2014-06-09 | Transmission processing method and device for tti bundling, network-side device and ue |
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| WO2017193388A1 (en) * | 2016-05-13 | 2017-11-16 | 华为技术有限公司 | Data transmission method, blind detection method, and terminal device |
| CN111315013B (en) * | 2018-12-11 | 2023-07-25 | 上海朗帛通信技术有限公司 | User equipment, method and device in base station for wireless communication |
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