CN104518855B - The method, apparatus of descending HARQ feedback is handled in base station and LTE system - Google Patents
The method, apparatus of descending HARQ feedback is handled in base station and LTE system Download PDFInfo
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- CN104518855B CN104518855B CN201310464273.7A CN201310464273A CN104518855B CN 104518855 B CN104518855 B CN 104518855B CN 201310464273 A CN201310464273 A CN 201310464273A CN 104518855 B CN104518855 B CN 104518855B
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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
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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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
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Abstract
The method, apparatus of descending HARQ feedback is handled in a kind of base station and LTE system, methods described includes：Each self-corresponding data structure is set to intra cell communication terminal, the data structure includes n instruction data, the first data that each instruction data include are for the process number for the HARQ processes for indicating to call during each sub-frame transmission data, first data are the number being made up of bit, and n is included the number of subframe by a radio frames；When the HARQ feedback message for receiving any communication terminal, then according to the HARQ feedback message to the bit of instruction data is updated accordingly in the data structure of the communication terminal.The technical program make use of data structure to carry the characteristic of time scale, skip the search procedure to array or chained list, improves the efficiency and speed of descending HARQ feedback processing, simplifies handling process.
Description
Technical field
The present invention relates to handle descending HARQ feedback in communication technical field, more particularly to a kind of base station and LTE system
Method, apparatus.
Background technology
In order to adapt to future mobile communication system high-speed and high reliability data transmission and meet new business demand,
Third generation partner program（3GPP）Start long evolving system（LTE, Long Term Evolution）.LTE is as
3 g mobile communication（3G）Technology and forth generation mobile communication（4G）A transition between technology, is known as " quasi- 4G " technologies.
LTE has high-frequency utilization rate, peak rates, high reliability transport, low delay etc. specific, has become mobile communication technology
The important technical innovation of one, field.
Hybrid automatic repeat-request（HARQ, Hybrid Automatic Repeat Request）Technology, then it is highly reliable
The effective guarantee of property data transfer, is one of LTE key technology.
LTE system uses asynchronous adaptive HARQ mechanism, i.e.,：In the call by location HARQ process transmission data of any frame
Afterwards, the confirmation of receiving terminal is waited for.After receiving terminal receives data, reception detection is carried out, if testing result is correct, to
Transmitting terminal feeds back a successful respond signal, otherwise feeds back a non-successful answer signal to transmitting terminal.Transmitting terminal receives then root
After the feedback message of receiving terminal, search corresponding HARQ processes and be successful respond or non-successful response according to feedback message
To decide whether to transmit again.In order to make full use of time-domain resource, LTE system also further employs the HARQ skills of multi-process
Art, after a subframe calls HARQ process transmission data, during waiting HARQ feedback message to be received, call other
Other data of HARQ process transmissions, that is, there are multiple asynchronous adaptive HARQ processes while start.
In the prior art, in the descending HARQ feedback processing of progress LTE, two can be safeguarded to the communication terminal in each cell
Individual array or chained list, it is respectively used to the idle HARQ processes of storage and busy HARQ processes.When base station receives communication terminal
After the feedback message of transmission, traversal searches busy HARQ processes array or chained list, is then determined in next step according to feedback message
Operation：If successful respond, then the HARQ processes are taken out from busy HARQ processes array or chained list and be put into the free time
HARQ processes array or chained list, the HARQ processes are otherwise still called to be retransmitted.However, the lookup to array or chained list can take
Substantial amounts of overhead, influence the efficiency of LTE system processing HARQ feedback.Communication terminal quantity especially in cell is more
When, the message of descending HARQ feedback can be very more, and above mentioned problem also can be protruded more.Therefore, it is a kind of efficient there is an urgent need to find
The descending HARQ feedback of processing method.
Correlation technique may be referred to Publication No. US2010202369A1 U.S. Patent application.
The content of the invention
What the present invention solved is that to handle the overhead taken during descending HARQ feedback in the prior art big, inefficient
Problem.
To solve the above problems, technical solution of the present invention provides the side that descending HARQ feedback is handled in a kind of LTE system
Method, including：
Each self-corresponding data structure is set to intra cell communication terminal, and the data structure includes n instruction data, respectively
Indicate that the first data for including of data are used to indicating the process number of HARQ processes called during each sub-frame transmission data, described first
Data are the number being made up of bit, and n is included the number of subframe by a radio frames；
When the HARQ feedback message for receiving any communication terminal, then according to the HARQ feedback message to the communication terminal
The bit of instruction data is updated accordingly in data structure.
Optionally, the process number of the HARQ processes of the first data instruction is set based on HARQ schedule informations, described
The process number of the HARQ processes of subframe numbers and calling when HARQ schedule informations are including calling HARQ process transmission data.
Optionally, the process number of the HARQ processes of the first data instruction, which is based on the setting of HARQ schedule informations, includes：
Indicated number corresponding with the subframe numbers during calling HARQ process transmission data is searched in the data structure
According to；
The value of first data of the instruction data for making to find is equal to the process number of the HARQ processes of the calling.
Optionally, it is described that data are indicated to corresponding in the data structure of the communication terminal according to the HARQ feedback message
Bit be updated including：
When determining to transmit data corresponding to the HARQ feedback message based on subframe numbers when receiving the HARQ feedback message
Subframe numbers；
Searched in the data structure of the communication terminal corresponding with the subframe numbers during transmission data of the HARQ feedback message
Instruction data；
If the HARQ feedback message is successful respond, by all of the first data of the instruction data found
Bit is reset, otherwise to data retransmission corresponding to the HARQ feedback message.
Optionally, respectively instruction data also include the second data corresponding with each first data, are respectively used to instruction and call
The number of HARQ process transmission data, second data are the number being made up of bit；It is described according to the HARQ feedback message
Also include to indicating that the bit of data is updated in the data structure of the communication terminal accordingly：When the HARQ feedback disappears
Cease for non-successful response when, the value of corresponding second data of the first data of the instruction data with finding is added 1.
Optionally, the method for descending HARQ feedback is handled in the LTE system also to be included：
If the value for the second data that any instruction data include is more than the maximum transmitted that system allows in the data structure
Number, then all bits of the instruction data are reset.
Optionally, the method for descending HARQ feedback is handled in the LTE system also to be included：
If occurring feedback time-out when any subframe calls HARQ process transmission data, to calling HARQ to enter in the subframe
The data retransmission of journey transmission, and indicate the second data corresponding to the first data corresponding with the subframe in data by described
Value add 1.
Optionally, the step for judging to occur feedback time-out when any subframe calls HARQ process transmission data includes：
Overtime timer corresponding to each subframe, subframe numbers of the timeout threshold of the overtime timer based on each subframe are set
It is determined that；
When any subframe calls HARQ process transmission data, overtime timer corresponding to startup；
Called if the timing length of the overtime timer does not receive yet when being equal to corresponding timeout threshold in the subframe
The HARQ feedback message of HARQ process transmission data, then judge feedback time-out occur in the subframe.
Optionally, the step for judging to occur feedback time-out when any subframe calls HARQ process transmission data includes：
If do not received yet at this at overtime subframe corresponding to it after any subframe calls HARQ process transmission data
Subframe calls the HARQ feedback message of HARQ process transmission data, then judges feedback time-out, time-out occur in the subframe
The subframe numbers that the subframe numbers of frame are equal to when HARQ feedback message is received corresponding to each subframe add timeout threshold, the timeout threshold etc.
In m subframe lengths, m ∈ [0,3].
Optionally, the method for descending HARQ feedback is handled in the LTE system also to be included：
Each self-corresponding 3rd data and the 4th data are set to intra cell communication terminal, and the 3rd data are used to indicate
The process number of idle HARQ process, the 4th data are used for the process number for indicating HARQ processes to be retransmitted, the 3rd number
It is the number that is made up of bit according to the 4th data；
To the 3rd data and the 4th while the bit of corresponding instruction data in updating the data structure
Data are configured.
Optionally, it is described while in the bit of corresponding instruction data in updating the data structure to described the
Three data and the 4th data be configured including：
Searched in data structure corresponding with the communication terminal with receiving the subframe numbers pair during the HARQ feedback message
The instruction data answered；
If it is successful respond to receive HARQ feedback message, the first data of the instruction data found are indicated
The process number of HARQ processes is added to the corresponding bits position of the 3rd data；
If it is non-successful response to receive HARQ feedback message, the first data of the instruction data found are indicated
The process numbers of HARQ processes be added to the corresponding bits positions of the 4th data.
Optionally, the digit for the bit that the 3rd data and the 4th data are included is supported based on the LTE system
The quantity of HARQ processes determines.
Optionally, the LTE system is FDD-LTE systems.
Optionally, the LTE system is TDD-LTE system and its descending minimum HARQ retransmits interval and is less than or equal to one
Individual wireless frame length, the uplink-downlink configuration based on the TDD-LTE system determine the HARQ processes that the TDD-LTE system is supported
Quantity.
To solve the above problems, technical solution of the present invention also provides the dress that descending HARQ feedback is handled in a kind of LTE system
Put, including：
Memory cell, for storing each self-corresponding data structure of intra cell communication terminal, the data structure includes n
Data are indicated, the first data that each instruction data include are for the process for the HARQ processes for indicating to call during each sub-frame transmission data
Number, first data are the number being made up of bit, and n is included the number of subframe by a radio frames；
First updating block, for when receiving the HARQ feedback message of any communication terminal, according to the HARQ feedback
Message is to the bit of instruction data is updated accordingly in the data structure of the communication terminal in the memory cell.
To solve the above problems, technical solution of the present invention also provide handled in a kind of base station, including above-mentioned LTE system it is descending
The device of HARQ feedback.
Compared with prior art, technical scheme has advantages below：
Because each instruction data in the data structure are corresponding with each subframe respectively, when allowing for data structure and carrying
Between scale, after HARQ feedback message is received, just can quickly be determined according to subframe numbers when receiving HARQ feedback message pair
The instruction data answered, with the process number of HARQ processes called when obtaining and transmitting data corresponding to the HARQ feedback message, without
The search procedure to array or chained list is carried out again, is improved processing speed, is saved overhead.Also, due to data knot
The number that structure is made up of bit, just the operation of the prior art to array or chained list is converted to the data structure middle finger
The operation of the bit of registration evidence, it is further so that the processing speed of the descending HARQ feedback of LTE system is improved.
The characteristics of time scale being carried using the data structure, when instruction data also the second number including being made up of bit
According to when, receive HARQ feedback message to indicate data the first data be updated while, pass through simple bit-level
Operation can obtain calling the number of HARQ process transmission data, simplify the number of transmissions and reach the exception that system transmission gate is prescribed a time limit
The process of protection, improves treatment effeciency.
The characteristics of carrying time scale using the data structure, without setting timer, it can be achieved with HARQ feedback
Overtime abnormal protection, further saves system resource, improves the efficiency of descending HARQ feedback processing.
, can be more directly perceived when the 3rd data and four data to being made up of corresponding to the setting of each communication terminal bit
Reflect which current HARQ process is idle, which HARQ process is waited to retransmit, and is the scheduling office of system next step
Reason is provided convenience.
Brief description of the drawings
Fig. 1 is the basic process that some communication terminal calls HARQ processes progress downlink data transmission in LTE system
Schematic diagram；
Fig. 2 is time diagram of the TDD LTE systems when each subframe calls HARQ processes to carry out downlink data transmission；
Fig. 3 is the schematic flow sheet for the method that descending HARQ feedback is handled in the LTE system of the embodiment of the present invention one；
Fig. 4 is the structural representation of the data structure C in the embodiment of the present invention one；
Fig. 5 is the schematic flow sheet for the method that descending HARQ feedback is handled in the LTE system of the embodiment of the present invention two；
Fig. 6 is the structural representation of the data structure D in the embodiment of the present invention two；
Fig. 7 is the schematic flow sheet for the method that descending HARQ feedback is handled in the LTE system of the embodiment of the present invention three；
Fig. 8 is the schematic flow sheet for the method that descending HARQ feedback is handled in the LTE system of the embodiment of the present invention four；
Fig. 9 is the structural representation for the device that descending HARQ feedback is handled in the LTE system of the embodiment of the present invention five.
Embodiment
As stated in the Background Art, LTE system is descending using asynchronous adaptive HARQ mechanism, wherein " asynchronous " is illustrated and adopted
With unfixed retransmission time interval, i.e., more than minimum retransmission interval（RTT, Round Trip Time）In the case of, network
The transmission opportunity of re-transmission data can be selected；" adaptive " is illustrated when data retransmit, can be according to link circuit self-adapting
Situation, selection using and the modulation system that differs when transmitting first.Some communication terminal in LTE cells is called
The basic process that HARQ processes carry out downlink data transmission is as shown in Figure 1：
System call is in subframe i（Downward arrow represents that the subframe is descending sub frame）It is descending that place calls HARQ processes to carry out
Data transfer, in subframe i+k（Upward arrow represents that the subframe is sub-frame of uplink）Place can receive corresponding HRAQ feedbacks and disappear
Breath.If the HARQ feedback message is successful respond（ACK）When, represent the data of this downlink transfer receiving end（Communicate
Terminal）It is properly received, then this end of transmission；If the HARQ feedback message is non-successful response（NACK）When, represent under this
The non-receiving end of data of row transmission is properly received, then needs to be retransmitted.Subframe j position is the position that the data retransmit
Put, system will receive the HARQ feedback message of this re-transmission in subframe j+p position.The rest may be inferred, and data can be transmitted repeatedly,
Untill sending successfully.It can be seen that single HARQ processes are the mechanism using " stopping ", i.e., the transmitting procedure of one downlink data
Including downlink data transmission, uplink HARQ feedback and possible re-transmission, until data are properly received by communication terminal.Certainly,
In view of actual conditions, LTE system will not undying re-transmission data carried out repeatedly, when the number of transmission data reaches
During the maximum transmission times allowed to system, the re-transmission to the data can be terminated, carried out to discharge occupied HARQ processes
The transmission of other data.The maximum transmission times that LTE related specifications allow system for 1,2,3,4,5,6,7,8,9,10,
12,16,20,24,28 } any value in.When it is implemented, can according to system real network environment and user's request etc. come
Selected.
For said process, in the prior art, the HARQ processes of free time are stored using array or chained list（free HARQ）
With busy HARQ processes（busy HARQ）, after LTE system receives the HARQ feedback message of communication terminal transmission, pass through
Traversal searches busy HARQ arrays or chained list to determine the operation of next step：If ACK, then the busy HARQ that will find
Process is taken out from busy HARQ processes arrays or chained list, is put into free HARQ processes arrays or chained list；If NACK,
Then retransmitted.When there is substantial amounts of communication terminal to access in cell, system needs HARQ feedback message to be processed can be very more,
At this moment system can produce it is substantial amounts of search expense, so as to cause LTE system when carrying out descending HARQ feedback processing it is inefficient,
Especially seem especially prominent when the communication terminal of access is a fairly large number of.Further, since inside of base station communication abnormality etc.
Problem, it is also possible to cause LTE scheduling system can not receive HARQ feedback message always, it is also necessary in each sub-frame transmission data
When set timer to carry out overtime abnormal protection, when the communication terminal quantity of access is larger, can also take substantial amounts of system
System resource.
In view of the above-mentioned problems, embodiment of the present invention, which is provided in a kind of efficient LTE system, handles descending HARQ feedback
Method, by setting each data that are self-corresponding, including the instruction data that n is made up of bit to the communication terminal in cell
Structure, come the process number of HARQ processes called when indicating each sub-frame transmission data.Due to each instruction in the data structure
Data are corresponding with each subframe, allow for data structure and carry time scale, can be according to connecing after HARQ feedback message is received
Subframe numbers when receiving HARQ feedback message find corresponding indicated number, and the indicated number is compared further according to HARQ feedback message
Superfine renewal operation.Thus the operation of bit-level will be converted to the search procedure of array or chained list in the prior art,
So that the expense that LTE system is used to search is greatly reduced, the efficiency of descending HARQ feedback processing is improved.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
First, a simple introduction is done to the sequential relationship of each link in the descending HARQ feedback processing of LTE system：
（1）To FDD（FDD, Frequency Division Duplexing）LTE system, the k in Fig. 1 are fixed etc.
What the time interval AN Timing between 4, expression downlink transmission data and uplink HARQ feedback were fixed is equal to 4 subframes, and
Difference between j-i, which is fixed, is equal to 8, represents the minimum interval RTT between downlink transmission data and the re-transmission of possible data
MIN fix is equal to 8 subframes, specifically in each of the lower the sequential of row sub-frame transmission data post-reception HARQ feedback message and
HARQ retransmits sequential and refers to table 1 below.Corresponding, in FDD LTE systems, each communication terminal at most needs 8 HARQ to enter
Journey is to support the parallel transmission of downlink data.For example, in n-th radio frames（It is descending）Subframe 0 call by location HARQ processes 1
Carry out downlink data first transmission, then will be in n-th radio frames（It is up）Subframe 4 position receive corresponding to HARQ it is anti-
Message is presented, if HARQ feedback message is ACK, this end of transmission otherwise, most soon can be in n-th radio frames（It is descending）'s
The position of subframe 8 retransmits to the data.
Table 1
（2）To time division duplex（TDD, Time Division Duplexing）LTE system, due to having on time resource
Distribution between up-downgoing, therefore sequential relationship corresponding to different uplink-downlink configurations is also different.Specifically, different up-downgoing
Time interval AN TIMING values during each sub-frame transmission data in the case of sub-frame configuration between corresponding uplink HARQ feedback
（That is k value）, downlink transmission data and possible data retransmit between minimum interval RTT MIN value（That is j and i
Difference）Value referring to table 2：
Table 2
Configured with the first（With setting to 0）TDD LTE systems exemplified by, the quantity of the HARQ processes supported altogether is 4, each
Subframe call HARQ processes carry out downlink data transmission sequential relationship as shown in Fig. 2 for example, n-th radio frames subframe 0
Call HARQ processes 1 to carry out downlink data transmission, corresponding HARQ feedback message will be received at the subframe 4 of the radio frames, and
Most retransmitted soon in the position of the subframe 0 of the N+1 radio frames when feedback message is NACK.As can also be seen from Table 2, for
For TDD-LTE system, number of processes corresponding to different uplink-downlink configurations is also different.
It was found from above-mentioned analysis, either FDD LTE systems or TDD LTE systems can be anti-according to HARQ is received
The position of message is presented, extrapolates the position for sending data corresponding with the HARQ feedback message, and when the transmission fails may
Re-transmission position.Therefore, technical solution of the present invention is applicable FDD LTE systems and TDD LTE systems, but needs what is illustrated
It is that the signified TDD LTE systems of technical solution of the present invention are descending minimum retransmission interval（RTT MIN）Less than or equal to LTE
The subframe position of one subframe lengths.With reference to table 2, i.e. technical solution of the present invention is applied to the TDD of the first uplink-downlink configuration
Other subframe positions in the TDD LTE systems of LTE system or second of uplink-downlink configuration in addition to subframe 5.
Embodiment one
As shown in figure 3, to handle the schematic flow sheet of the method for descending HARQ feedback in the LTE system of the present embodiment, bag
Include：
Step S100：Each self-corresponding data structure C, the data structure C is set to include n to intra cell communication terminal
Data are indicated, the first data that each instruction data include are for the process for the HARQ processes for indicating to call during each sub-frame transmission data
Number, first data are the unsigned number being made up of bit, and n is included the number of subframe by a radio frames.LTE systems at present
A radio frames include 10 subframes, therefore n=10 in the present embodiment in system.It is illustrated in figure 4 the data structure C of the present embodiment
Structural representation, it can be seen that include 10 instruction data of the data structure C are respectively C0、C1、…、C9, wherein respectively
Indicate in data comprising the first data being made up of 4 bits（Instruction data C is only indicated in figure0The first data）.Due to
LTE system can at most support 15 HARQ processes at present, i.e., corresponding process number is 1~15, therefore will be included in the first data
Bit number is defined as 4, to represent the process number of this 15 processes.If as the development of the communication technology, follow-up system are supported
When HARQ process numbers change, the bit number that the first packet contains is adjusted correspondingly.Accordingly, each indicated number
Comprising the initial values of each bit of the first data could be arranged to 1, if being 0xFF with hexadecimal representation.It can see
Go out, by the way that respectively the subscript can of instruction data is corresponding by each indicated number and subframe numbers during transmission data in data structure
Come so that data structure carries time scale.
For LTE system when carrying out downlink data transmission, LTE system can carry out HARQ scheduling first, and send HARQ scheduling
Information, to indicate LTE physical layer in which subframe, the transmission for calling which HARQ process to carry out data.That is, HARQ
The process number of the HARQ processes of subframe numbers and calling when schedule information is including calling HARQ process transmission data.According to system
The HARQ schedule informations sent, the HARQ process numbers that the first data in corresponding instruction data in data structure can be indicated first
It is configured.Specifically, the process number of the HARQ processes indicated according to HARQ schedule informations the first instruction data is configured
Flow include：First, search in the data structure corresponding with the subframe numbers during calling HARQ process transmission data
Instruction data., can be in data according to this subframe numbers due to carrying subframe numbers during transmission data in schedule information
Indicated number corresponding to being found in structure is according to this and the first data.With the TDD LTE systems of second of uplink-downlink configuration shown in table 2
Exemplified by, if system call calls the row data transfer of HARQ processes 1 in the subframe 0 of n-th radio frames, at this moment corresponding instruction data
Just it is C0, wherein, C0Corresponding relation is formed by its subscript 0 and subframe 0.Then, the first of the instruction data found is made
The value of data is equal to the process number of the HARQ processes of the calling.The process number of the HARQ processes included in HARQ schedule informations is
1, just make C0The first data 4 bits value be equal to 1, under representing that HARQ processes 1 are have invoked at subframe 0 have been carried out
Row data transfer.
Step S101：When the HARQ feedback message for receiving any communication terminal, then according to the HARQ feedback message to this
The bit of instruction data is updated accordingly in the data structure of communication terminal.First, based on the reception HARQ feedback
Subframe numbers during message determine subframe numbers during transmission data corresponding to the HARQ feedback message.It is wireless in n-th with reference to table 2
The HARQ feedback message that the subframe 7 of frame receives, it is 0 with regard to subframe numbers when can obtain transmitting data corresponding to the HARQ feedback message
Or 1.Then, son during transmission data corresponding with the HARQ feedback message is found in the data structure of the communication terminal
Indicated number corresponding to frame number.Finally, the first data of the instruction data are updated according to HARQ feedback message：If HARQ is anti-
Feedback message is ACK, then resets all bits in the first data of the instruction data found, otherwise, to the HARQ feedback
Transmission data are retransmitted corresponding to message.For example, if the HARQ feedback message that receives of subframe 7 in n-th radio frames is
ACK, just directly to C0Reset, the value of the bit of its first data is recovered initial value, all 1, if with hexadecimal table
Show as 0xFF；If being NACK in the HARQ feedback message that the subframe 7 of n-th radio frames receives, corresponding second instruction data
Add 1, if the second instruction data after renewal are less than or equal to maximum transmission times, described in the process numbers of HARQ processes is added to
The corresponding bits position of 4th data；If the second instruction data after renewal are more than maximum transmission times, the HARQ processes are discharged.
So far, just finish in a downlink data transmission process of the subframe 0 of n-th radio frames, as known from Table 2, when
When this data transfer is unsuccessful, the re-transmission of first time can most be carried out in the position of the subframe 1 of the N+1 radio frames soon.
As can be seen that the data structure of each communication terminal establishes one-to-one relation by its subscript and each subframe, make
Data structure is obtained per se with time scale, can be according to subframe numbers during reception HARQ feedback message and system in downlink transfer
Sequential relationship during data between each link, directly find the corresponding instruction data being made up of bit.Then, it is anti-according to HARQ
The concrete outcome of message is presented, directly each bit of the first data in the instruction data that find is operated, release is transmitted
HARQ processes corresponding to successful data, or the data of bust this are retransmitted.So allow for carrying out in LTE system
During descending HARQ feedback processing, the search procedure to array or chained list has been skipped, expense has been saved for system, improves
Treatment effeciency.In addition, will also be converted into the operation of the bit-level to the data structure to the operation of array or chained list, simplify
Handling process, further increase treatment effeciency.
Embodiment two
As shown in figure 5, the flow signal of the method for descending HARQ feedback is handled in LTE system for the embodiment of the present invention two
Figure, including：
Step S200：Each self-corresponding data structure D, the data structure D is set to include n to intra cell communication terminal
Data are indicated, each to indicate that data include the first data and the second corresponding data, the first data are used to indicate that each subframe passes
The process number for the HARQ processes called during transmission of data, the second data are used to indicate the number for calling HARQ process transmission data, institute
It is the number being made up of bit to state the first data and the second data, and n is included the number of subframe by a radio frames.The tool of this step
Body is implemented to refer to the step S100 of embodiment one, unlike, the instruction data in the present embodiment also add for indicating
Call the second data of the number of HARQ process transmission data.As shown in fig. 6, be data structure D schematic diagram, the data knot
10 instruction data that structure D is included are respectively D0、D1、…、D9, it is each to indicate that data include the first data and the second data
（D is only indicated in figure0The first data and the second data）, and the first data and the second data are made up of 4 bits
Unsigned number, wherein the bit number that the second packet contains can determine according to the maximum transmission times that LTE system is set.Example
Such as, when the maximum transmission times of LTE system are 4, the second data can be arranged to include 4 bits, and each bit is first
Initial value is arranged to 0, and it is 0 to represent the number of transmissions.Because the value of the second data is used to indicate time for calling HARQ process transmission data
Number, therefore when receiving HARQ schedule informations and carrying out data transfer first, should according to HARQ schedule informations, by including tune
The value of the second data is initialized as 1 corresponding to the first data corresponding to subframe numbers during HARQ process transmission data.
Step S201：When the HARQ feedback message for receiving any communication terminal, then according to the HARQ feedback message to this
The bit of instruction data is updated accordingly in the data structure of communication terminal.The specific implementation of this step, refers to reality
Apply the step S101 in example one.Unlike, while the bit of the first data in instruction data is updated, also
The bit of second data is updated accordingly.Specifically, when HARQ feedback message is non-successful response, will be with looking into
The value of the second data adds 1 corresponding to first data of the instruction data found.For example, the subframe 7 in n-th radio frames is received
HARQ feedback message is arrived, if the HARQ feedback message received is NACK, then will be to the subframe 0 of n-th radio frames
The data of place's transmission are retransmitted, while to C0The values of bit of the second data add 1, represent that the subframe 0 in n frame passes
Defeated data need once to retransmit.If current retransmit still fails, C0The values of bit of the second data add 1 again.
Step S202：Judge whether the value of the second data that any instruction data include in the data structure is more than system
The maximum transmission times of permission.It has been mentioned hereinbefore that system in order to avoid ceaselessly being retransmitted to data, can set one most
Big the number of transmissions, once the number of transmission data is more than the maximum transmission times that system allows, then it should discharge this transmission institute
The HARQ processes of calling, resource is reserved to transmit other data.
If step S202 judged result is yes, then it represents that the number of transmissions has reached the maximum transmitted time of default
Number, at this moment perform step S203：All bits of the instruction data are reset.For example, work as D0During=[00010101], its is right
The value for the second data answered is equal to 5, and the data that the subframe 0 meant that in n frame is transmitted first have already been through the transmission of 4 times
But transmission success is not, it is necessary to dispatch the transmission of the 5th yet.As can be seen that it is exactly that data are actually passed that the value of the second data, which subtracts 1,
Defeated number, therefore, once detecting that the value of the second data is more than the maximum transmission times of default, just explanation is to data
Transmission has reached the maximum transmission times of default, at this moment should reset all bits of the instruction data, with
Expression discharges the HARQ processes for transmitting the data call, and resource is reserved to transmit other data.For example, when the second data
Value be equal to 5, and the maximum transmission times of default be 4 when, just should be by D0All bits reset, make D0All ratios
The value of special position recovers initial value.In other embodiments, the second data can be used for indicating to call HARQ processes to be retransmitted
Number, at this moment first transmit when should just make the second data be initial value, even if the value of the second data be 0.At this moment step
S202 Rule of judgment could be arranged to：Whether the value for the second data that any instruction data include is equal in the data structure
The maximum transmission times that system allows.
If step S202 judged result is no, then it represents that the number of transmissions is also not up to the maximum transmitted time of default
Number, at this moment return to step S201, continues with HARQ feedback message corresponding to the transmission data.
So far, a HARQ downstream feedback processing procedure of LTE system just completes.
As can be seen that the method that the LTE system of the present embodiment handles descending HARQ feedback, because the data structure carries
Time scale so that the search procedure to array or chained list is eliminated in processing procedure, overhead is saved, improves
Processing speed.In addition, the handling process that the operation of bit-level is also is simplified, system resource is further saved.
Further, due to further comprises the bit of number for indicating HARQ process transmission data in instruction data
Position, thus judge call HARQ process transmission data when whether reached system allow maximum transmission times when, Ke Yizhi
Connect and the data structure being made up of bit is searched, without being carried out to the array or chained list that store busy HARQ processes
Search, simplify abnormal protection flow when the number of transmissions reaches the maximum transmission times of system permission, improve the effect of processing
Rate.
Embodiment three
As shown in fig. 7, the flow signal of the method for descending HARQ feedback is handled in LTE system for the embodiment of the present invention three
Figure, including：
Step S300：Each self-corresponding data structure C is set to intra cell communication terminal.The data structure C includes n
Data are indicated, the first data that each instruction data include are for the process for the HARQ processes for indicating to call during each sub-frame transmission data
Number, first data are the unsigned number being made up of bit, and n is included the number of subframe by a radio frames.
Step S301：When the HARQ feedback message for receiving any communication terminal, then according to the HARQ feedback message to this
The bit of instruction data is updated accordingly in the data structure of communication terminal.
Step S300 and step S301 specific implementation refers to step S100 and step S101 in embodiment one, herein
Repeat no more.
Step S302：Determine whether occur feedback time-out when any subframe calls HARQ process transmission data.Above
Through mentioning, the problems such as due to inside of base station communication abnormality, in fact it could happen that LTE system can not receive HARQ feedback message always
Situation, therefore also need to carry out receiving overtime abnormal protection in each sub-frame transmission data.Carried out in view of LTE system
During the processing of descending HARQ feedback, there is relatively-stationary sequential relationship between links, therefore from calling HARQ processes
The subframe numbers carried out data transmission, it may be determined that the corresponding subframe numbers for receiving HARQ feedback message.If it is determined that subframe numbers
The a period of time of delay afterwards does not receive the HARQ feedback message of the data yet, then physical layer transmission exception is considered as, this
When by corresponding overtime abnormity protection function system breakdown should be avoided to wait the state of HARQ feedback message to be received.
Specifically：First, the subframe numbers of corresponding overtime subframe when any subframe calls HARQ process transmission data are determined.
Generally, any subframe calls subframe numbers when receiving HARQ feedback message corresponding to HARQ process transmissions data to add timeout threshold,
Just it is a time out the subframe numbers of subframe.Wherein timeout threshold can be the length of m subframe.M span is [0,3], specifically
Value, can be set according to the requirement of system, the present embodiment is not specifically limited.According to m value, it is possible to determine certain
Overtime subframe corresponding to one subframe.Then, if whether not receiving the subframe pair yet at overtime subframe corresponding to a certain subframe
The HARQ feedback message answered, then it may determine that feedback time-out occurs in the subframe.
If step S302 judged result is yes, step S303 is performed：To calling HARQ process transmissions in the subframe
Data retransmission, and the value of the second data corresponding to the first data corresponding with the subframe in the instruction data is added 1.
It is similar with the HARQ feedback message for receiving non-successful response, at this moment need to retransmit data again；If step S302
Judged result be no, then return to step S301.
The method that descending HARQ feedback is handled in the LTE system of the present embodiment, institute can be utilized according to HARQ feedback message
The characteristics of data structure carries time scale is stated, the indicated number corresponding to lookup directly in data structure, and indicated number is carried out
The operation of bit-level, it can more fast and efficiently realize the processing of descending HARQ feedback.In addition, carried using data structure
The characteristics of time scale, without setting overtime timer to each subframe, it just can quickly determine which subframe feedback occur in
Time-out, so that system can make quick response, and start re-transmission.
It should be noted that in the case of the disposal ability and resource of system are relatively large number of, can also be super by setting
When timer mode, to realize overtime abnormal protection.Specifically：First, overtime timer corresponding to each subframe is set, it is described
Subframe numbers of the timeout threshold of overtime timer based on each subframe determine.The determination of the duration of overtime timer corresponding to each subframe
It can refer to the determination process of above-mentioned overtime subframe.When the timing length of overtime timer is more than or equal to corresponding timeout threshold
When do not receive yet the subframe call HARQ process transmission data HARQ feedback message, then judge the subframe occur feedback surpass
When.Due to during the processing of descending HARQ feedback, being still the bit-level operation to data structure, thus it is descending in progress
Still there is fast and efficiently advantage during HARQ feedback processing.
Example IV
As shown in figure 8, the flow signal of the method for descending HARQ feedback is handled in LTE system for the embodiment of the present invention four
Figure, including：
Step S400：Each self-corresponding data structure C, the 3rd data and the 4th data are set to intra cell communication terminal,
Wherein, the data structure C includes n instruction data, and the first data that each instruction data include are used to indicate each sub-frame transmission
The process number for the HARQ processes called during data, first data are the unsigned number being made up of bit, and n is a radio frames
The number of included subframe, the 3rd data are used for the process number for indicating idle HARQ process, and the 4th data are used to refer to
Show the process number of HARQ processes to be retransmitted, the 3rd data and the 4th data are the number being made up of bit.
LTE system is when being transmitted data dispatch, it will usually in free HARQ process selections, in the prior art, just
Carried out by searching free HARQ arrays or chained list, it was found from analysis above, the lookup meeting to array or chained list
Take many system resources.Which process number by the HARQ processes that can determine to have called up in data structure C is, then is tied
The process number for the HARQ processes that syzygy system is supported, so that it may know the process number of the current free HARQ processes of system.For example, in C
Indicate data C0And C7The first data be not equal to initial value, then take C0And C7The value of the bit of corresponding first data, just
It is known that the process number for the HARQ processes that current system has called up, such as C0The first data value be equal to 1, C7First number
According to value be equal to 4, if now system support HARQ processes process number be 1~7, then the process number of free HARQ processes
It is just 1,2,3,4,5,6,7.In order that LTE system is when being transmitted data dispatch, can it is more directly perceived, quickly worked as
The process number of preceding system free HARQ processes, in the present embodiment, any communication terminal sets data structure in cell
Meanwhile corresponding 3rd data are also set up, for indicating the process number of free HARQ processes, the bit number that it is included is with being
The quantity for the HARQ processes supported of uniting is relevant.For example, when system supports 7 HARQ processes, the 3rd data can is arranged to
Include 28（4 are multiplied by 7）The unsigned number of individual bit, the value from low level to high-order every 4 bits are used to refer to a free
The ID of HARQ processes.System in original state, all HARQ processes be all it is idle, therefore, the initial value of the 3rd data
The process number of all HARQ processes should be included, still exemplified by supporting the system of 7 HARQ processes, the initial value of the 3rd data should
Equal to [0,111 0,110 0,101 0,100 0,011 0,010 0001].After LTE system receives HARQ schedule informations, it is possible to will
The process number of the HARQ processes carried in HARQ schedule informations removes from the 3rd data, to represent that the HARQ processes are not
Free state.Specifically, if HARQ is called in instruction at the subframe 0 of n-th radio frames in the HARQ schedule informations received
Process 1 transmits data, and at this moment can takes out low 4 bits in the 3rd data, then other bit gts four,
3rd data are just changed into [1,111 0,111 0,110 0,101 0,100 0,011 0010], it can be seen that are at this moment wrapped in the 3rd data
The process number of the HARQ processes contained is just changed into 2~7, and highest 4 is bit initial value, does not indicate the process of any HARQ processes
Number.It is of course also possible to indicated by not including in the data of other method the 3rd commonly used in the art in HARQ schedule informations
Calling HARQ processes process number.
Similarly, in order to more intuitively reflect the process number of HARQ processes to be retransmitted, in the present embodiment, to small
While any communication terminal sets data structure in area, corresponding 4th data are also set up, for indicating HARQ to be retransmitted
The process number of process, its bit number included are relevant with the quantity for the HARQ processes that system is supported.For example, with the 3rd data class
Seemingly, when system supports 7 HARQ processes, the 4th data can is arranged to include 28（4 are multiplied by 7）Individual bit without symbol
Number, the value from low level to high-order every 4 bits are used to refer to the process number of a re-transmission HARQ process.System is in original state
When, all HARQ processes are all idle, and therefore, the initial value of the 4th data does not include the process number of any HARQ processes,
The initial value of the 4th data could be arranged to be equal to [1,111 1,111 1,111 1,111 1,111 1111 in the present embodiment
1111], represent there is no any HARQ processes to be retransmitted during original state.
Setting to data structure C then may be referred to embodiment one, and here is omitted.
Step S401：When the HARQ feedback message for receiving any communication terminal, then according to the HARQ feedback message to this
The bit of instruction data is updated accordingly in the data structure of communication terminal, while the 3rd data and the 4th data are entered
Row is set.
Renewal to the corresponding bit than instruction data in data structure, refers to embodiment one, illustrates one here
Under to the setting up procedure of the 3rd data and the 4th data.Specifically, searched first in data structure anti-with the reception HARQ
Instruction data corresponding to subframe numbers when presenting message, then according to the type of HARQ feedback message to the 3rd data and the 4th data
It is configured：If the HARQ feedback message received is successful respond, the first data of the instruction data found are indicated
The process number of HARQ processes is added to the corresponding bits position of the 3rd data；If it is non-successful response to receive HARQ feedback message,
The process number for the HARQ processes that first data of the instruction data found are indicated is added to the phase of the 4th data
Answer bit.That is, when transmitting data success, just the HARQ processes called when transmitting data are discharged, and is put into
In the 3rd data for indicating free HARQ processes；When transmission data are unsuccessful, then need to retransmit the data, at this moment
Just the process number of the HARQ processes of data call to be retransmitted is added in the 4th data, waits and retransmitting.If it should be understood that should
After re-transmission data are rescheduled and retransmitted, then the process number of the HARQ processes of calling should be removed from the 4th data.Still join
The example in step S400 is examined, when corresponding HARQ is anti-when the subframe 0 of n-th radio frames calls HARQ processes 1 to transmit data
When feedback message is ACK, C is read0In the first data bit value, and be added in the 3rd data, e.g., with instruction
Four bits covering C of HARQ processes 10In complete 1 four bits, the 3rd data are just changed into [0,001 0,111 0110
0101 0,100 0,011 0010], wherein the process number of the HARQ processes included is 1~7；When the subframe 0 in n-th radio frames
When corresponding HARQ feedback message is NACK when calling the transmission data of HARQ processes 1, HARQ processes 1 are just added in the 4th data
Corresponding process number, at this moment the 4th data just should be [0,001 1,111 1,111 1,111 1,111 1,111 1111]（Assuming that now
Without other data to be retransmitted）, represent now to call the data of HARQ processes 1 waiting re-transmission.
The method that descending HARQ feedback is handled in the LTE system of the present embodiment, can directly it be existed according to HARQ feedback message
Indicated number corresponding to being searched in data structure, and the operation of bit-level is carried out to indicated number, can more fast and efficiently it realize
The processing of descending HARQ feedback.In addition, in the present embodiment, there is provided the 3rd data and use for indicating idle HARQ process
In the 4th data for indicating HARQ processes to be retransmitted, it can more intuitively reflect that system waits what the data retransmitted were called
The process number of HRAQ processes and the process number of idle HARQ process so that the scheduling of system and retransmission process are more simple
It is single quick.
It should be understood that those skilled in the art can be by LTE system described by above-described embodiment one to example IV
The method of the middle descending HARQ feedback of processing carries out reasonable combination, to meet the different process demand of system.
Embodiment five
The device that descending HARQ feedback is handled in a kind of LTE system is present embodiments provided, as shown in figure 9, including：Storage
Unit U10, the first updating block U20, the first setting unit U30, retransmission unit U40, the second updating block U50, the 3rd renewal
Unit U60, the second setting unit U70 and feedback message receiving unit U80.Wherein, memory cell U10, for storing in cell
Each self-corresponding data structure of communication terminal, the data structure include n instruction data, each the first number for indicating data and including
The process number for the HARQ processes called during according to for indicating each sub-frame transmission data, first data are made up of bit
Number, n are included the number of subframe by a radio frames；First updating block U20, for as the HARQ for receiving any communication terminal
During feedback message, according to the HARQ feedback message to phase in the data structure of the communication terminal in the memory cell U10
The bit for the instruction data answered is updated；First setting unit U30, for being counted based on HARQ schedule informations to described first
It is configured according to the process number of the HARQ processes of instruction, when the HARQ schedule informations are including calling HARQ process transmission data
The process number of the HARQ processes of subframe numbers and calling；Retransmission unit U40, for being answered when the HARQ feedback message to be non-successful
When answering, to data retransmission corresponding to the HARQ feedback message；Second updating block U50, for as the memory cell U10
Data structure in the value of the second data that includes of any instruction data when being more than the maximum transmission times that system allows, this is referred to
All bits of registration evidence are reset；3rd updating block U60, the data that HARQ process transmissions are called in the subframe are passed again
It is defeated and the first data corresponding with the subframe in the instruction data of the data structure of memory cell U10 storages are corresponding
The values of the second data add 1；Second setting unit U70, used in updating the data structure in the first updating block U20
The 3rd data and the 4th data are configured while the bit of corresponding instruction data；Feedback message receiving unit
U80 is used to receive the HARQ feedback message.
Wherein, the first updating block U20 includes：Determining unit U201, for being disappeared based on the reception HARQ feedback
Subframe numbers during breath determine subframe numbers during transmission data corresponding to the HARQ feedback message；Second searching unit U202, is used for
Search that HARQ feedback message is corresponding transmits data with this in the data structure of the communication terminal in the memory cell U10
When subframe numbers corresponding to instruction data；First renewal subelement U203, for being successful respond when the HARQ feedback message
When, all bits of the first data of the second searching unit U202 instruction data found are reset.At this
In embodiment, each instruction data also stored in the memory cell U10 also include the corresponding with each first data second number
According to being respectively used to the number that HARQ process transmission data are called in instruction, second data are the number that is made up of bit, therefore institute
Stating the first updating block also includes the second renewal subelement U204, for when the HARQ feedback message is non-successful response,
The value of corresponding second data of first data of the instruction data found with the second searching unit U202 is added 1.
The first setting unit U30 includes：First searching unit U301, for searching in the data structure and institute
State instruction data corresponding to subframe numbers when calling HARQ process transmission data；Assignment unit U302, for making described first to look into
Look for the first data of the instruction data that unit U301 finds value be equal to the calling HARQ processes process number.
LTE system in the present embodiment can be FDD-LTE systems or TDD-LTE system and its descending minimum
HARQ retransmits interval and is less than or equal to a wireless frame length.
Corresponding, the present embodiment also provides the dress that descending HARQ feedback is handled in a kind of base station, including above-mentioned LTE system
Put.
The specific implementation that the device of descending HARQ feedback is handled in the LTE system of the present embodiment refers to embodiment one to reality
Example four is applied, here is omitted.
It will be understood by those skilled in the art that all or part for realizing above-mentioned technical proposal is can be referred to by program
Make related hardware complete, described program can be stored in readable storage medium storing program for executing, the storage medium can be ROM,
RAM, magnetic disc, CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (24)
1. the method for descending HARQ feedback is handled in a kind of LTE system, it is characterised in that including:
Each self-corresponding data structure is set to intra cell communication terminal, and the data structure includes n instruction data, each instruction
The first data that data include are for the process number for the HARQ processes for indicating to call during each sub-frame transmission data, first data
For the number being made up of bit, n is included the number of subframe by a radio frames；
When the HARQ feedback message for receiving any communication terminal, then data according to the HARQ feedback message to the communication terminal
The bit of instruction data is updated accordingly in structure；
Wherein, the bit according to the HARQ feedback message to corresponding instruction data in the data structure of the communication terminal
Position be updated including：
Son when determining to transmit data corresponding to the HARQ feedback message based on subframe numbers when receiving the HARQ feedback message
Frame number；
Refer to corresponding with the subframe numbers during transmission data of the HARQ feedback message is searched in the data structure of the communication terminal
Registration evidence；
If the HARQ feedback message is successful respond, by all bits of the first data of the instruction data found
Position is reset, otherwise to data retransmission corresponding to the HARQ feedback message.
2. the method for descending HARQ feedback is handled in LTE system as claimed in claim 1, it is characterised in that first number
Set according to the process number of the HARQ processes of instruction based on HARQ schedule informations, the HARQ schedule informations include calling HARQ processes
The process number of the HARQ processes of subframe numbers and calling during transmission data.
3. the method for descending HARQ feedback is handled in LTE system as claimed in claim 2, it is characterised in that first number
Being based on the setting of HARQ schedule informations according to the process number of the HARQ processes of instruction includes：
Instruction data corresponding with the subframe numbers during calling HARQ process transmission data are searched in the data structure；
The value of first data of the instruction data for making to find is equal to the process number of the HARQ processes of the calling.
4. the method for descending HARQ feedback is handled in LTE system as claimed in claim 1, it is characterised in that respectively indicate data
Also include the second data corresponding with each first data, be respectively used to the number that HARQ process transmission data are called in instruction, institute
It is the number being made up of bit to state the second data；It is described according to the HARQ feedback message to phase in the data structure of the communication terminal
The bit for the instruction data answered, which is updated, also to be included：, will be with lookup when the HARQ feedback message is non-successful response
To the instruction data the first data corresponding to the values of the second data add 1.
5. the method for descending HARQ feedback is handled in LTE system as claimed in claim 4, it is characterised in that also include：
If the value for the second data that any instruction data include is more than the maximum transmission times that system allows in the data structure,
Then all bits of the instruction data are reset.
6. the method for descending HARQ feedback is handled in LTE system as claimed in claim 1, it is characterised in that also include：
If occurring feedback time-out when any subframe calls HARQ process transmission data, to calling HARQ processes to pass in the subframe
Defeated data retransmission, and by the value of the second data corresponding to the first data corresponding with the subframe in the instruction data
Add 1.
7. the method for descending HARQ feedback is handled in LTE system as claimed in claim 6, it is characterised in that judge any
Subframe calls the step for occurring feedback time-out during HARQ process transmission data to include：
Overtime timer corresponding to each subframe is set, and subframe numbers of the timeout threshold of the overtime timer based on each subframe are true
It is fixed；
When any subframe calls HARQ process transmission data, overtime timer corresponding to startup；
HARQ is called to enter in the subframe if the timing length of the overtime timer does not receive yet when being equal to corresponding timeout threshold
Journey passes the HARQ feedback message of transmission of data, then judges feedback time-out occur in the subframe.
8. the method for descending HARQ feedback is handled in LTE system as claimed in claim 6, it is characterised in that judge any
Subframe calls the step for occurring feedback time-out during HARQ process transmission data to include：
If do not received yet in the subframe at overtime subframe corresponding to it after any subframe calls HARQ process transmission data
The HARQ feedback message of HARQ process transmission data is called, then judges feedback time-out occur in the subframe, the overtime subframe
The subframe numbers that subframe numbers are equal to when HARQ feedback message is received corresponding to each subframe add timeout threshold, and the timeout threshold is equal to m
Individual subframe lengths, m ∈ [0,3].
9. the method for descending HARQ feedback is handled in LTE system as claimed in claim 1, it is characterised in that also include：
Each self-corresponding 3rd data and the 4th data are set to intra cell communication terminal, and the 3rd data are used to indicate the free time
The process number of HARQ processes, the 4th data are used to indicating the process numbers of HARQ processes to be retransmitted, the 3rd data and
4th data are the number being made up of bit；
To the 3rd data and the 4th data while the bit of corresponding instruction data in updating the data structure
It is configured.
10. the method for descending HARQ feedback is handled in LTE system as claimed in claim 9, it is characterised in that described to update
Bag is configured to the 3rd data and the 4th data while the bit for indicating data in the data structure accordingly
Include：
Searched in data structure corresponding with the communication terminal corresponding with subframe numbers when receiving the HARQ feedback message
Indicate data；
If it is successful respond to receive HARQ feedback message, by the HARQ of the first data instruction of the instruction data found
The process number of process is added to the corresponding bits position of the 3rd data；
If it is non-successful response to receive HARQ feedback message, the first data of the instruction data found are indicated
The process number of HARQ processes is added to the corresponding bits position of the 4th data.
11. the method for descending HARQ feedback is handled in LTE system as claimed in claim 9, it is characterised in that the 3rd number
The quantity for the HARQ processes supported according to the digit of the bit included with the 4th data based on the LTE system is determined.
12. the method for descending HARQ feedback is handled in LTE system as claimed in claim 1, it is characterised in that the LTE systems
Unite as FDD-LTE systems.
13. the method for descending HARQ feedback is handled in LTE system as claimed in claim 1, it is characterised in that the LTE systems
Unite and retransmit interval for TDD-LTE system and its descending minimum HARQ and be less than or equal to a wireless frame length, based on described
The uplink-downlink configuration of TDD-LTE system determines the quantity for the HARQ processes that the TDD-LTE system is supported.
14. the device of descending HARQ feedback is handled in a kind of LTE system, it is characterised in that including:
Memory cell, for storing each self-corresponding data structure of intra cell communication terminal, the data structure includes n instruction
Data, each the first data for indicating data and including are used to indicating the process number for the HARQ processes called during each sub-frame transmission data,
First data are the number being made up of bit, and n is included the number of subframe by a radio frames；
First updating block, for when receiving the HARQ feedback message of any communication terminal, according to the HARQ feedback message
To the bit of instruction data is updated accordingly in the data structure of the communication terminal in the memory cell；Wherein,
It is described that the bit of corresponding instruction data in the data structure of the communication terminal is carried out more according to the HARQ feedback message
Newly include：When determining to transmit data corresponding to the HARQ feedback message based on subframe numbers when receiving the HARQ feedback message
Subframe numbers；Searched in the data structure of the communication terminal corresponding with the subframe numbers during transmission data of the HARQ feedback message
Indicate data；If the HARQ feedback message is successful respond, by the institute of the first data of the instruction data found
There is bit replacement, otherwise to data retransmission corresponding to the HARQ feedback message.
15. the device of descending HARQ feedback is handled in LTE system as claimed in claim 14, it is characterised in that also including
One setting unit, the process number of the HARQ processes for being indicated based on HARQ schedule informations first data are configured,
The process number of the HARQ processes of subframe numbers and calling when the HARQ schedule informations are including calling HARQ process transmission data.
16. the device of descending HARQ feedback is handled in LTE system as claimed in claim 15, it is characterised in that described first
Setting unit includes：
First searching unit, for searching in the data structure and the subframe numbers during calling HARQ process transmission data
Corresponding instruction data；
Assignment unit, it is described for being equal to the value of the first data of instruction data that first searching unit finds
The process number of the HARQ processes of calling.
17. the device of descending HARQ feedback is handled in LTE system as claimed in claim 14, it is characterised in that described first
Updating block includes：
Determining unit, for determining biography corresponding to the HARQ feedback message based on subframe numbers when receiving the HARQ feedback message
Subframe numbers during transmission of data；
Second searching unit, for being searched and the HARQ feedback in the data structure of the communication terminal in the memory cell
Instruction data corresponding to subframe numbers corresponding to message during transmission data；
First renewal subelement, for when the HARQ feedback message is successful respond, second searching unit to be searched
All bits of first data of the instruction data arrived are reset.
18. the device of descending HARQ feedback is handled in LTE system as claimed in claim 17, it is characterised in that the storage
Each instruction data in unit also include the second data corresponding with each first data, are respectively used to instruction and call HARQ processes
The number of data is transmitted, second data are the number being made up of bit；First updating block also includes the second renewal
Unit, for the finger that when the HARQ feedback message is non-successful response, will be found with second searching unit
The value of the second data adds 1 corresponding to first data of registration evidence.
19. the device of descending HARQ feedback is handled in LTE system as claimed in claim 18, it is characterised in that also include：
Second updating block, for when the value of the second data that any instruction data include in the data structure of the memory cell
During the maximum transmission times allowed more than system, all bits of the instruction data are reset.
20. the device of descending HARQ feedback is handled in LTE system as claimed in claim 14, it is characterised in that also include：
3rd updating block, for overtime when occurring feedback when any subframe calls HARQ process transmission data, in the son
Frame call HARQ process transmissions data retransmission, and in the instruction data for the data structure that the memory cell is stored with
The value of second data corresponding to the first corresponding data of the subframe adds 1, and the process number of HARQ processes is added into the 4th number
According to corresponding bits position.
21. the device of descending HARQ feedback is handled in LTE system as claimed in claim 14, it is characterised in that the storage
Unit is additionally operable to store each self-corresponding 3rd data of communication terminal and the 4th data in cell, and the 3rd data are used to refer to
Show the process number of idle HARQ process, the 4th data are used for the process number for indicating HARQ processes to be retransmitted, and the described 3rd
Data and the 4th data are the number being made up of bit；
The device of the descending HARQ feedback of processing also includes the second setting unit, for updating institute in first updating block
The 3rd data and the 4th data are configured while stating the bit for indicating data in data structure accordingly.
22. the device of descending HARQ feedback is handled in LTE system as claimed in claim 14, it is characterised in that the LTE systems
Unite as FDD-LTE systems.
23. the device of descending HARQ feedback is handled in LTE system as claimed in claim 14, it is characterised in that the LTE systems
Unite and retransmit interval for TDD-LTE system and its descending minimum HARQ and be less than or equal to a wireless frame length, based on described
The uplink-downlink configuration of TDD-LTE system determines the quantity for the HARQ processes that the TDD-LTE system is supported.
24. a kind of base station, it is characterised in that descending including being handled in the LTE system described in any one of claim 14 to 23
The device of HARQ feedback.
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| CN110351898B (en) * | 2018-04-04 | 2023-06-30 | 华为技术有限公司 | Communication method, device, communication equipment and communication system for discontinuous reception |
| CN113556217B (en) * | 2021-09-18 | 2022-01-25 | 深圳传音控股股份有限公司 | Communication method, network device, terminal device, and storage medium |
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| CN101841404A (en) * | 2009-03-16 | 2010-09-22 | 上海贝尔股份有限公司 | Relay communication method, system and device |
| WO2011026534A1 (en) * | 2009-09-03 | 2011-03-10 | Panasonic Corporation | Feedback scheme for providing feedback on plural transmissions |
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| CN102326353A (en) * | 2009-02-19 | 2012-01-18 | 三星电子株式会社 | Method for performing hybrid automatic repeat request operation in wireless mobile communication system |
| CN101841404A (en) * | 2009-03-16 | 2010-09-22 | 上海贝尔股份有限公司 | Relay communication method, system and device |
| WO2011026534A1 (en) * | 2009-09-03 | 2011-03-10 | Panasonic Corporation | Feedback scheme for providing feedback on plural transmissions |
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