CN101567766A - Transmission method for confirming feedback information - Google Patents
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- CN101567766A CN101567766A CNA2008101050784A CN200810105078A CN101567766A CN 101567766 A CN101567766 A CN 101567766A CN A2008101050784 A CNA2008101050784 A CN A2008101050784A CN 200810105078 A CN200810105078 A CN 200810105078A CN 101567766 A CN101567766 A CN 101567766A
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Abstract
The invention discloses a transmission method for confirming ACK feedback information. The method divides downlink subframes in a wireless frame into groups and limits the maximum scheduling number of the downlink subframes in the wireless frame, wherein an ACK signal of each subframe group corresponds to an uplink subframe; and the method also comprises the following steps: receiving the wireless frame sent by a base station; and feeding the ACK signal corresponding to the downlink subframe of the subframe group in the wireless frame back to the base station through the uplink subframe corresponding to the subframe group. The proposal of the invention reduces the number of the ACK signals required to be fed back by limiting the number of the downlink subframes scheduled in the wireless frame to, thus the quality of ACK feedback information is improved.
Description
Technical field
The present invention relates to data transmission technology, relate in particular to a kind of affirmation (ACK, Acknowledgement) transmission method of feedback information.
Background technology
In the transfer of data between base station and terminal, will be called downlink transfer to the transmission of terminal, will be called uplink by the transmission of terminal to base station by the base station.The subframe of distributing to uplink is called sub-frame of uplink, the subframe of distributing to downlink transfer is called descending sub frame.Terminal receive that the base station transmits by after the descending sub frame data packet loaded, by sub-frame of uplink the reception condition of descending sub frame data packet loaded is fed back to the base station, the reception condition of described descending sub frame data packet loaded is the ACK feedback information just, comprises receiving successfully and taking defeat; Behind the ACK feedback information that the base station receiving terminal transmits, the packet that takes defeat is retransferred to terminal by descending sub frame.
For Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplexing) system, uplink and downlink transfer are separated on frequency, can set up one-to-one relationship easily between sub-frame of uplink and the descending sub frame, like this, the ack signal of a descending sub frame can uniquely correspond to a sub-frame of uplink, sends the ACK feedback information to base station, the relative simple fixation of its corresponding relation by the sub-frame of uplink of this unique correspondence.
Yet, for time division duplex (TDD, Time Division Duplexing) system, uplink and downlink transfer adopt the unsymmetric structure of variable-scale to support non-symmetrical service, and this asymmetry causes uplink and downlink transfer can not set up simple one-to-one relationship.At present, the TDD system of Long Term Evolution (LTE, Long Term Evolution) supports multiple uplink and downlink timeslot ratio configuration, extreme case, and a sub-frame of uplink need send nearly 18 ack signals.The ack signal number that sends by a sub-frame of uplink is many more, and the transmission performance of system and efficient are just low more.How under the prerequisite of taking into account performance and efficient, the many ACK transmission plan that designs under the various uplink and downlink timeslot ratios configurations is the very big challenge that faces at present.
The LTE system supports two class frame structures, and wherein, the second class frame structure only is applicable to LTE TDD system, and Fig. 1 is the second class frame structure schematic diagram.In the second class frame structure, each radio frames is made of two fields (half-frame), and each field length is 5ms.Each field comprises 8 time slots, and the length of each time slot is 0.5ms; And three special time slots, be descending pilot frequency time slot (DwPTS, Downlink pilot time slot), uplink pilot time slot (UpPTS, Uplink pilot time slot) and protection interval (GP, Guard period).In three special time slots, the length of DwPTS and UpPTS is configurable, and requires the total length of DwPTS, GP and UpPTS to equal 1ms.In the radio frames, subframe 1 and subframe 6 comprise DwPTS, GP and UpPTS, and other each subframe comprises two adjacent time slots, and wherein i subframe constitutes with 2i+1 time slot by 2i.
In each radio frames, subframe 0 and subframe 5 and DwPTS are reserved as downlink transfer forever.
Radio frames is supported the switching point cycle of 5ms and 10ms:
Under 5ms switching cycle situation, UpPTS, subframe 2 and subframe 7 are reserved as uplink.
Under 10ms switching cycle situation, DwPTS exists in two fields, but GP and UpPTS only exist in first field, and the DwPTS length in second field is 1ms.UpPTS and subframe 2 are reserved as uplink.
The uplink and downlink timeslot ratio configuration of supporting in the standard at present is as shown in table 1, the situation of each subframe in the radio frames has been shown in the table under the different configurations, wherein D represents that this subframe is used for downlink transfer, and S represents that this subframe is the subframe of special time slot, and U represents that this subframe is used for uplink.
The uplink and downlink timeslot ratio configuration of supporting in the present standard of table 1
The radio frames convey data packets can adopt the form of single current, also can adopt the form of double fluid, and packet of each descending sub frame carrying that so-called single current is a radio frames, so-called double fluid are two packets of each descending sub frame carrying.Configuration is numbered in 0 the radio frames, the ratio of descending sub frame and sub-frame of uplink is 2: 6, be expressed as 2 times: on 6, situation for single current, packet of each descending sub frame carrying, and two special time slots in the radio frames also can carry a downlink data packet respectively, can regard these two special time slots as descending sub frame, like this, the downlink data packet that can carry at most in the radio frames is 4, because sub-frame of uplink number 6, can be realized the ack signal of a descending sub frame of a sub-frame of uplink carrying greater than the number 4 of descending sub frame; And for the situation of double fluid, the downlink data packet that can carry at most in the radio frames is 8, and the maximum ack signal number that promptly needs to feed back to the base station is 8, greater than the number 4 of sub-frame of uplink, at this moment, exists in the sub-frame of uplink carrying greater than the situation of 1 ack signal.
For another example, configuration is numbered in 6 the radio frames, uplink and downlink timeslot ratio is 8 times: on 1, situation for single current, the maximum downstream packet summation that descending sub frame and special time slot can carry is 9, and terminal need feed back to the base station by 1 sub-frame of uplink in the radio frames with the ack signal of 9 packets; For the situation of double fluid, the maximum downstream packet summation that descending sub frame and special time slot can carry is 9 to multiply by 2, equals 18, and terminal need feed back to the base station by 1 sub-frame of uplink in the radio frames with the ack signal of 18 packets.
For uplink and downlink timeslot ratio configurations different shown in the table 1, the maximum ack signal number difference of sub-frame of uplink carrying, its excursion is 1 to 18.For the control channel form of designing a kind of simple general-purpose comes the loading ACK signal, this control channel form can all be suitable for all uplink and downlink timeslot ratio configuring conditions, employing designs the control channel form according to maximum possible, just each sub-frame of uplink in the radio frames all is designed to carry 18 ack signals, yet, because the ack signal number is too big, strengthened the bit of configuration to sub-frame of uplink, will cause the reduction of transmission performance and efficient again.
And, for the big situation of base station area coverage,, will cause the transmission quality of ACK feedback information to reduce if the ack signal number of sub-frame of uplink carrying is too many, systematic function will be subjected to very big influence, and this has increased the implementation complexity of system.
In order to address the above problem, proposed a plurality of descending sub frames in the radio frames are only fed back the solution thinking of an ack signal, this thinking is merged into an ack signal with the ack signal of a plurality of descending sub frame correspondences in the radio frames and is transmitted.But this thinking imperfection does not also have concrete implementation at present.
When adopting the merging ack signal to transmit, can reduce retransmission probability by the mode of the predefined Packet Error Ratio of reduction system.Table 2 shows for the number of the ack signal that combines, the Packet Error Ratio situation of retransmission probability simultaneously not.The ack signal number that combines is represented with n; Packet Error Ratio is the predefined index request of system, uses P
eExpression, centre one column of figure of table 2 is P
eThe retransmission probability of=10% o'clock correspondence, the right one column of figure of table 2 is P
eThe retransmission probability of=5% o'clock correspondence; P
ReThe expression retransmission probability, its expression formula is P
Re=1-(1-P
e)
n
Situation for n=1: work as P
e=10% o'clock, retransmission probability was 10%; Work as P
e=1% o'clock, retransmission probability was 1%.
Situation for n=2: work as P
e=10% o'clock, retransmission probability was 19%; Work as P
e=1% o'clock, retransmission probability was 2%.
Situation for n=4: work as P
e=10% o'clock, retransmission probability was 34%; Work as P
e=1% o'clock, retransmission probability was 3.9%.
For the situation of n=9, this moment, the ratio time slot of radio frames was 8 times: on 1, and be the situation of single-stream transmission: work as P
e=10% o'clock, retransmission probability was 61%; Work as P
e=1% o'clock, retransmission probability was 8.6%.
For the situation of n=1, this moment, the ratio time slot of radio frames was 8 times: on 1, and be the situation of stream transmission: work as P
e=10% o'clock, retransmission probability was 85%, and this moment, throughput seriously descended; Work as P
e=1% o'clock, retransmission probability was 16.5%.
As can be seen from Table 2, if will reduce retransmission probability, a direct method is to improve professional transmission quality target value, just reduces Packet Error Ratio, for example, Packet Error Ratio is reduced to 1% from 10%.Though adopt the method that reduces Packet Error Ratio can significantly reduce retransmission probability,, because of will hanging down of Packet Error Ratio will directly cause the decline of spectrum efficiency, cause systematic function to reduce.
Relation between ack signal number, Packet Error Ratio and the retransmission probability that table 2 merges
By above analysis as seen, the transmission method of existing ACK feedback information exists transmission quality not high, to the big problem of systematic function influence.
Summary of the invention
The invention provides a kind of method of ACK transmission of feedback information, this method can improve the transmission quality of ACK feedback information, reduces the influence to systematic function.
A kind of method of ACK transmission of feedback information is divided into groups to the descending sub frame in the radio frames, the corresponding sub-frame of uplink of the ack signal of each subframe group, and the maximum of descending sub frame is dispatched number in the restriction radio frames, and this method comprises:
Receive the radio frames that the base station sends;
Will with the corresponding ack signal of descending sub frame of subframe group in the radio frames, feed back to the base station by the sub-frame of uplink corresponding with this subframe group.
From such scheme as can be seen, the present invention divides into groups to the descending sub frame in the radio frames, the corresponding sub-frame of uplink of the ack signal of each subframe group, and the maximum of descending sub frame scheduling number in the restriction radio frames, after the radio frames that receives the base station transmission, will the ack signal corresponding with the descending sub frame of each subframe group, feed back to the base station by the sub-frame of uplink corresponding with this subframe group.Like this, the descending sub frame in the radio frames is divided into groups, by being limited in the ack signal number that the descending sub frame number of dispatching in the radio frames reduces needs feedback, thereby, improved the transmission quality of ACK feedback information, reduced influence to systematic function.
Description of drawings
The second class frame structure schematic diagram that Fig. 1 supports for the LTE system;
Fig. 2 is the transmission method exemplary process diagram of ACK feedback information of the present invention;
Fig. 3 is 7 times for uplink and downlink timeslot ratio: the grouping schematic diagram of the wireless frame structure on 2;
Fig. 4 is 5 times for uplink and downlink timeslot ratio: the grouping schematic diagram of the wireless frame structure on 3.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Among the present invention, the base station comprises the configuration of radio frames: the descending sub frame in the radio frames is divided into groups, and the corresponding sub-frame of uplink of the ack signal of each subframe group, and the maximum of descending sub frame is dispatched number in the restriction radio frames; Terminal is given with this configuration distributing in the base station then.Afterwards, terminal just can be carried out the transmission of ACK feedback information according to this configuration, may further comprise the steps:
Then, the base station just can determine whether to retransmit corresponding packet according to the ack signal of each subframe group of correspondence of terminal feedback.
The present invention is when dividing into groups to the descending sub frame in the radio frames, be that the descending sub frame number that can dispatch of terminal configuration limits also to base station in each subframe group, the descending sub frame number of dispatching in radio frames by limiting terminal reduces the ack signal number that terminal need be fed back, thereby, the quality of raising ACK feedback information.Be that example describes the present invention program with the ACK transmission of feedback information under the extreme case below, under the extreme case, radio frames includes only a subframe group, and this subframe group comprises 9 descending sub frames.Here, the maximum number of the descending sub frame that can dispatch in the subframe group is restricted to 3, like this, terminal feeds back to only corresponding confined 3 descending sub frames of ack signal of base station by the unique sub-frame of uplink in the radio frames.
The invention provides the transmission method of concrete ACK feedback information, and avoided in a sub-frame of uplink 18 ack signals of feedback to cause the low problem of transmission quality, limited the ack signal number that terminal is carried in a sub-frame of uplink.Thereby, improved the quality of ACK feedback information, when guaranteeing up covering, reduced retransmission probability, reduced the implementation complexity of system.
Be 7 times with uplink and downlink timeslot ratio shown in Figure 3 below: the wireless frame structure on 2 is an example, and the transmission method of ACK feedback information of the present invention is illustrated.
It is 7 times that Fig. 3 shows uplink and downlink timeslot ratio: the wireless frame structure on 2.Here regard special time slot as descending sub frame, then comprise 8 descending sub frames in this radio frames.When the descending sub frame in the radio frames is divided into groups, uplink and downlink timeslot ratio configuration according to radio frames is divided into groups, just descending sub frame is divided into groups according to the number of sub-frame of uplink, the number of subframe group can be identical with the sub-frame of uplink number, also can be inequality, when identical, between subframe group and the sub-frame of uplink one-to-one relationship, inequality is to have the situation of the corresponding sub-frame of uplink of at least two subframe groups.Embodiment shown in Figure 3 is subframe group and the same number of situation of sub-frame of uplink.Sub-frame of uplink is 2 in this radio frames, and therefore 8 descending sub frames are divided into 2 groups: the subframe in the radio frames 0, subframe 1, subframe 4 and subframe 5 are divided into subframe group 1, indicate the descending sub frame of " 1 " in the corresponding diagram 3, promptly subframe group 1 comprises { #0, #1, #4, #5}; Subframe in the radio frames 6, subframe 7, subframe 8 and subframe 9 are divided into subframe group 2, indicate the descending sub frame of " 2 " in the corresponding diagram 3, promptly subframe group 2 comprises { #6, #7, #8, #9}.The ack signal of subframe group 1 is transmitted by the sub-frame of uplink that indicates " 1 " among Fig. 3, is just transmitted by subframe 2; The ack signal of subframe group 2 is transmitted by the sub-frame of uplink that indicates " 2 " among Fig. 3, is just transmitted by subframe 3.
After dividing into groups, in each subframe group, the descending sub frame number that terminal can be dispatched is less than or equal to the maximum downstream number of subframes that each subframe group is comprised, the descending sub frame numerical statement of dispatching in each subframe group is shown x, after determining x, terminal is handed down to adopt x descending sub frame convey data packets in the subframe group of correspondence after in the base station, for example, during x=1, represent that it is 1 that the interior base station configuration of certain subframe group is given the descending sub frame number that is used for the bearing downlink packet of this terminal.For the situation of single current, terminal needs to feed back x ack signal respectively on sub-frame of uplink 1 and 2; For the situation of double fluid, terminal needs to feed back 2x ack signal respectively on sub-frame of uplink 1 and 2.
Be 5 times with uplink and downlink timeslot ratio shown in Figure 4 more below: the wireless frame structure on 3 is an example, and the transmission method of ACK feedback information of the present invention is illustrated.
It is 5 times that Fig. 4 shows uplink and downlink timeslot ratio: the wireless frame structure on 3.Here regard special time slot as descending sub frame, then comprise 7 descending sub frames in this radio frames.Number according to sub-frame of uplink is divided into groups to descending sub frame.Here sub-frame of uplink is 3,7 descending sub frames can be divided into 3 groups.Subframe in the radio frames 1, subframe 5 and subframe 6 are divided into subframe group 1, indicate the descending sub frame of " 1 " in the corresponding diagram 4, promptly subframe group 1 comprises { #1, #5, #6}; Subframe in the radio frames 7 and subframe 8 are divided into subframe group 2, indicate the descending sub frame of " 2 " in the corresponding diagram 4, promptly subframe group 2 comprises { #7, #8}; Subframe in the radio frames 0 and subframe 9 are divided into subframe group 3, indicate the descending sub frame of " 3 " in the corresponding diagram 4, promptly subframe group 3 comprises { #0, #9}.The ack signal of subframe group 1 is transmitted by the sub-frame of uplink that indicates " 1 " among Fig. 4, is just transmitted by subframe 2; The ack signal of subframe group 2 is transmitted by the sub-frame of uplink that indicates " 2 " among Fig. 4, is just transmitted by subframe 3; The ack signal of subframe group 3 is transmitted by the sub-frame of uplink that indicates " 3 " among Fig. 4, is just transmitted by subframe 4.
The maximum descending sub frame number that can dispatch of terminal in the restriction radio frames, also just limited the maximum downstream number of subframes that terminal can be dispatched in each subframe group, the maximum downstream number of subframes that this terminal can be dispatched is less than or equal to the total number of descending sub frame in this radio frames.
For each subframe group, the base station is the descending sub frame number that can dispatch of terminal configuration, and promptly the x value can be fixed value; Can be the semi-static configuration x value of each terminal by the base station, to reach the raising covering, the purpose of assurance peak rate also according to the requirement of sub-district covering and user's peak rate.So-called satisfy cover requirement, just satisfy the requirement of the ack signal number that each sub-frame of uplink comprises, what is called satisfies the requirement of user's peak rate, just satisfies the requirement of the descending sub frame number of bearing downlink packet in the radio frames.For example, the situation for the demanding terminal high peaks is downloaded can guarantee by the x value that improves each subframe group.So-called semi-static configuration x value, just the base station is adjusted the x value according to actual needs.The value of x can be passed through algorithm by the scheduler of base station, adopts high-level signaling to dispose and realizes.
For certain terminal, the x value of the different subframe groups in the radio frames can be different, and for example, the x value of certain subframe group is 0 o'clock, and being illustrated in interior this terminal of this subframe group can be by base station scheduling.
When the descending sub frame number x that is scheduled in the subframe group＞1, the ACK of each descending sub frame correspondence that this subframe group can be comprised carries out logic ' with ' computing, and the operation result that obtains is fed back to the base station; Perhaps, the transmission channel by many ACK directly feeds back x ack signal on the sub-frame of uplink of correspondence.Be illustrated adopting the logical compute mode to carry out the ack signal transmission below, the content of supposing the ACK feedback information is for to receive successfully, then ack signal is expressed as " 1 ", the content of ACK feedback information is for taking defeat, then ack signal is expressed as " 0 ", when the ack signal of each descending sub frame correspondence all is " 1 " in the descending sub frame that is scheduled when these are a plurality of, should carry out after the logical computing by a plurality of ack signals, operation result is " 1 ", the base station receives after this ACK feedback signal that is expressed as " 1 ", determines that just the descending sub frame data packet loaded that is scheduled in this subframe group all successfully receives.
Among the present invention, when the descending sub frame in the radio frames is divided into groups, both can be by cell configuration, also can be by terminal configuration.During according to cell configuration, the terminal in the sub-district is adopted identical ACK transmission of feedback information mechanism, just adopt in a like fashion and divide into groups, and adopt in a like fashion the descending sub frame in the subframe group is dispatched; During according to terminal configuration, corresponding each terminal adopts different ACK transmission of feedback information mechanism respectively.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1, a kind of transmission method of confirming the ACK feedback information, it is characterized in that, the descending sub frame in the radio frames is divided into groups, the corresponding sub-frame of uplink of the ack signal of each subframe group, and the maximum of descending sub frame scheduling number in the restriction radio frames, this method comprises:
Receive the radio frames that the base station sends;
Will with the corresponding ack signal of descending sub frame of subframe group in the radio frames, feed back to the base station by the sub-frame of uplink corresponding with this subframe group.
2, the method for claim 1 is characterized in that, the maximum of descending sub frame scheduling number is less than or equal to the total number of descending sub frame in the radio frames in the described radio frames.
3, the method for claim 1 is characterized in that, describedly divides into groups to be according to the uplink and downlink timeslot ratio configuration of radio frames to the descending sub frame in the radio frames.
As claim 1,2 or 3 described methods, it is characterized in that 4, the maximum of descending sub frame scheduling number is realized by semi-static configuration in the described radio frames.
As claim 1,2 or 3 described methods, it is characterized in that 5, described descending sub frame to radio frames divides into groups based on cell configuration or based on terminal configuration,
During based on cell configuration, all terminals in the sub-district are carried out identical grouping; During based on terminal configuration, different terminals is carried out different groupings.
6, as claim 1,2 or 3 described methods, it is characterized in that, described will the ack signal corresponding with the descending sub frame of subframe group, feed back to the base station by the sub-frame of uplink corresponding and comprise with this subframe group:
Each ack signal of the descending sub frame correspondence of subframe group is carried out the logical computing, operation result is fed back to the base station by the sub-frame of uplink corresponding with this subframe group; Perhaps each ack signal with the descending sub frame correspondence of subframe group feeds back to the base station by the sub-frame of uplink corresponding with this subframe group.
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Cited By (9)
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| CN101989897A (en) * | 2010-11-15 | 2011-03-23 | 中兴通讯股份有限公司 | Feedback method of acknowledgment message and terminal thereof |
| CN102111254A (en) * | 2010-04-30 | 2011-06-29 | 电信科学技术研究院 | Feedback information transmission method and user equipment |
| CN102571662A (en) * | 2010-12-30 | 2012-07-11 | 中国移动通信集团公司 | Transmitting method and device for downlink data |
| CN103916900A (en) * | 2013-01-04 | 2014-07-09 | 中国移动通信集团公司 | Special time slot configuration detecting method and device |
| CN104426639A (en) * | 2013-08-27 | 2015-03-18 | 中兴通讯股份有限公司 | Sending method and device for uplink control information |
| CN104868975A (en) * | 2011-03-31 | 2015-08-26 | 华为技术有限公司 | Subframe configuration method in time division duplex system, base station and user equipment |
| CN106170939A (en) * | 2015-02-16 | 2016-11-30 | 华为技术有限公司 | The sending method of ascending control information, method of reseptance and device |
| CN107950009A (en) * | 2015-08-28 | 2018-04-20 | 高通股份有限公司 | Transportation protocol communication is reduced |
| CN110809319A (en) * | 2018-08-06 | 2020-02-18 | 黎光洁 | Data transmission method and data transmission system in Internet of things |
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| CN102111254A (en) * | 2010-04-30 | 2011-06-29 | 电信科学技术研究院 | Feedback information transmission method and user equipment |
| CN102111254B (en) * | 2010-04-30 | 2014-11-19 | 电信科学技术研究院 | Feedback information transmission method and user equipment |
| CN101989897B (en) * | 2010-11-15 | 2015-10-21 | 中兴通讯股份有限公司 | Confirmation feedback method and terminal |
| CN101989897A (en) * | 2010-11-15 | 2011-03-23 | 中兴通讯股份有限公司 | Feedback method of acknowledgment message and terminal thereof |
| CN102571662A (en) * | 2010-12-30 | 2012-07-11 | 中国移动通信集团公司 | Transmitting method and device for downlink data |
| US10681689B2 (en) | 2011-03-31 | 2020-06-09 | Huawei Technologies Co., Ltd. | Method, base station and user equipment for subframe configuration in time division duplex system |
| US10251168B2 (en) | 2011-03-31 | 2019-04-02 | Huawei Technologies Co., Ltd. | Method, base station and user equipment for subframe configuration in time division duplex system |
| CN104868975B (en) * | 2011-03-31 | 2019-07-19 | 华为技术有限公司 | Method, base station and the user equipment of subframe in time-division duplex system configuration |
| CN104868975A (en) * | 2011-03-31 | 2015-08-26 | 华为技术有限公司 | Subframe configuration method in time division duplex system, base station and user equipment |
| CN103916900A (en) * | 2013-01-04 | 2014-07-09 | 中国移动通信集团公司 | Special time slot configuration detecting method and device |
| CN103916900B (en) * | 2013-01-04 | 2017-06-20 | 中国移动通信集团公司 | The detection method and device of a kind of special time slot configuration |
| US10178655B2 (en) | 2013-08-27 | 2019-01-08 | Xi'an Zhongxing New Software Co. Ltd. | Method and device for transmitting uplink control information |
| CN104426639A (en) * | 2013-08-27 | 2015-03-18 | 中兴通讯股份有限公司 | Sending method and device for uplink control information |
| CN106170939A (en) * | 2015-02-16 | 2016-11-30 | 华为技术有限公司 | The sending method of ascending control information, method of reseptance and device |
| CN106170939B (en) * | 2015-02-16 | 2019-10-25 | 华为技术有限公司 | Sending method, method of reseptance and the device of ascending control information |
| CN107950009B (en) * | 2015-08-28 | 2019-03-01 | 高通股份有限公司 | Transportation protocol communication is reduced |
| CN107950009A (en) * | 2015-08-28 | 2018-04-20 | 高通股份有限公司 | Transportation protocol communication is reduced |
| CN110809319A (en) * | 2018-08-06 | 2020-02-18 | 黎光洁 | Data transmission method and data transmission system in Internet of things |
| CN110809319B (en) * | 2018-08-06 | 2023-10-31 | 黎光洁 | Data transmission method and data transmission system in Internet of things |
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